/* * MOV, 3GP, MP4 muxer * Copyright (c) 2003 Thomas Raivio * Copyright (c) 2004 Gildas Bazin * Copyright (c) 2009 Baptiste Coudurier * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include "config_components.h" #include #include #include "movenc.h" #include "avformat.h" #include "avio_internal.h" #include "dovi_isom.h" #include "riff.h" #include "avio.h" #include "isom.h" #include "av1.h" #include "avc.h" #include "libavcodec/ac3_parser_internal.h" #include "libavcodec/dnxhddata.h" #include "libavcodec/flac.h" #include "libavcodec/get_bits.h" #include "libavcodec/internal.h" #include "libavcodec/put_bits.h" #include "libavcodec/vc1_common.h" #include "libavcodec/raw.h" #include "internal.h" #include "libavutil/avstring.h" #include "libavutil/channel_layout.h" #include "libavutil/intfloat.h" #include "libavutil/mathematics.h" #include "libavutil/libm.h" #include "libavutil/opt.h" #include "libavutil/dict.h" #include "libavutil/pixdesc.h" #include "libavutil/stereo3d.h" #include "libavutil/timecode.h" #include "libavutil/dovi_meta.h" #include "libavutil/color_utils.h" #include "libavutil/uuid.h" #include "hevc.h" #include "rtpenc.h" #include "mov_chan.h" #include "movenc_ttml.h" #include "mux.h" #include "rawutils.h" #include "ttmlenc.h" #include "version.h" #include "vpcc.h" static const AVOption options[] = { { "movflags", "MOV muxer flags", offsetof(MOVMuxContext, flags), AV_OPT_TYPE_FLAGS, {.i64 = 0}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "rtphint", "Add RTP hint tracks", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_RTP_HINT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "moov_size", "maximum moov size so it can be placed at the begin", offsetof(MOVMuxContext, reserved_moov_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, 0 }, { "empty_moov", "Make the initial moov atom empty", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_EMPTY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "frag_keyframe", "Fragment at video keyframes", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_KEYFRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "frag_every_frame", "Fragment at every frame", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_EVERY_FRAME}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "separate_moof", "Write separate moof/mdat atoms for each track", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SEPARATE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "frag_custom", "Flush fragments on caller requests", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_CUSTOM}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "isml", "Create a live smooth streaming feed (for pushing to a publishing point)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_ISML}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "faststart", "Run a second pass to put the index (moov atom) at the beginning of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FASTSTART}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "omit_tfhd_offset", "Omit the base data offset in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_OMIT_TFHD_OFFSET}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "disable_chpl", "Disable Nero chapter atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DISABLE_CHPL}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "default_base_moof", "Set the default-base-is-moof flag in tfhd atoms", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DEFAULT_BASE_MOOF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "dash", "Write DASH compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DASH}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "cmaf", "Write CMAF compatible fragmented MP4", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_CMAF}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "frag_discont", "Signal that the next fragment is discontinuous from earlier ones", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_FRAG_DISCONT}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "delay_moov", "Delay writing the initial moov until the first fragment is cut, or until the first fragment flush", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_DELAY_MOOV}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "global_sidx", "Write a global sidx index at the start of the file", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_GLOBAL_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "skip_sidx", "Skip writing of sidx atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_SIDX}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "write_colr", "Write colr atom even if the color info is unspecified (Experimental, may be renamed or changed, do not use from scripts)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_COLR}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "prefer_icc", "If writing colr atom prioritise usage of ICC profile if it exists in stream packet side data", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_PREFER_ICC}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "write_gama", "Write deprecated gama atom", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_WRITE_GAMA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "use_metadata_tags", "Use mdta atom for metadata.", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_USE_MDTA}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "skip_trailer", "Skip writing the mfra/tfra/mfro trailer for fragmented files", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_SKIP_TRAILER}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, { "negative_cts_offsets", "Use negative CTS offsets (reducing the need for edit lists)", 0, AV_OPT_TYPE_CONST, {.i64 = FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS}, INT_MIN, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM, "movflags" }, FF_RTP_FLAG_OPTS(MOVMuxContext, rtp_flags), { "skip_iods", "Skip writing iods atom.", offsetof(MOVMuxContext, iods_skip), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "iods_audio_profile", "iods audio profile atom.", offsetof(MOVMuxContext, iods_audio_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM}, { "iods_video_profile", "iods video profile atom.", offsetof(MOVMuxContext, iods_video_profile), AV_OPT_TYPE_INT, {.i64 = -1}, -1, 255, AV_OPT_FLAG_ENCODING_PARAM}, { "frag_duration", "Maximum fragment duration", offsetof(MOVMuxContext, max_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { "min_frag_duration", "Minimum fragment duration", offsetof(MOVMuxContext, min_fragment_duration), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { "frag_size", "Maximum fragment size", offsetof(MOVMuxContext, max_fragment_size), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { "ism_lookahead", "Number of lookahead entries for ISM files", offsetof(MOVMuxContext, ism_lookahead), AV_OPT_TYPE_INT, {.i64 = 0}, 0, 255, AV_OPT_FLAG_ENCODING_PARAM}, { "video_track_timescale", "set timescale of all video tracks", offsetof(MOVMuxContext, video_track_timescale), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { "brand", "Override major brand", offsetof(MOVMuxContext, major_brand), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM }, { "use_editlist", "use edit list", offsetof(MOVMuxContext, use_editlist), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "fragment_index", "Fragment number of the next fragment", offsetof(MOVMuxContext, fragments), AV_OPT_TYPE_INT, {.i64 = 1}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { "mov_gamma", "gamma value for gama atom", offsetof(MOVMuxContext, gamma), AV_OPT_TYPE_FLOAT, {.dbl = 0.0 }, 0.0, 10, AV_OPT_FLAG_ENCODING_PARAM}, { "frag_interleave", "Interleave samples within fragments (max number of consecutive samples, lower is tighter interleaving, but with more overhead)", offsetof(MOVMuxContext, frag_interleave), AV_OPT_TYPE_INT, {.i64 = 0}, 0, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM }, { "encryption_scheme", "Configures the encryption scheme, allowed values are none, cenc-aes-ctr", offsetof(MOVMuxContext, encryption_scheme_str), AV_OPT_TYPE_STRING, {.str = NULL}, .flags = AV_OPT_FLAG_ENCODING_PARAM }, { "encryption_key", "The media encryption key (hex)", offsetof(MOVMuxContext, encryption_key), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM }, { "encryption_kid", "The media encryption key identifier (hex)", offsetof(MOVMuxContext, encryption_kid), AV_OPT_TYPE_BINARY, .flags = AV_OPT_FLAG_ENCODING_PARAM }, { "use_stream_ids_as_track_ids", "use stream ids as track ids", offsetof(MOVMuxContext, use_stream_ids_as_track_ids), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "write_btrt", "force or disable writing btrt", offsetof(MOVMuxContext, write_btrt), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "write_tmcd", "force or disable writing tmcd", offsetof(MOVMuxContext, write_tmcd), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "write_prft", "Write producer reference time box with specified time source", offsetof(MOVMuxContext, write_prft), AV_OPT_TYPE_INT, {.i64 = MOV_PRFT_NONE}, 0, MOV_PRFT_NB-1, AV_OPT_FLAG_ENCODING_PARAM, "prft"}, { "wallclock", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_WALLCLOCK}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"}, { "pts", NULL, 0, AV_OPT_TYPE_CONST, {.i64 = MOV_PRFT_SRC_PTS}, 0, 0, AV_OPT_FLAG_ENCODING_PARAM, "prft"}, { "empty_hdlr_name", "write zero-length name string in hdlr atoms within mdia and minf atoms", offsetof(MOVMuxContext, empty_hdlr_name), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM}, { "movie_timescale", "set movie timescale", offsetof(MOVMuxContext, movie_timescale), AV_OPT_TYPE_INT, {.i64 = MOV_TIMESCALE}, 1, INT_MAX, AV_OPT_FLAG_ENCODING_PARAM}, { NULL }, }; static const AVClass mov_isobmff_muxer_class = { .class_name = "mov/mp4/tgp/psp/tg2/ipod/ismv/f4v muxer", .item_name = av_default_item_name, .option = options, .version = LIBAVUTIL_VERSION_INT, }; static int get_moov_size(AVFormatContext *s); static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt); static int utf8len(const uint8_t *b) { int len = 0; int val; while (*b) { GET_UTF8(val, *b++, return -1;) len++; } return len; } //FIXME support 64 bit variant with wide placeholders static int64_t update_size(AVIOContext *pb, int64_t pos) { int64_t curpos = avio_tell(pb); avio_seek(pb, pos, SEEK_SET); avio_wb32(pb, curpos - pos); /* rewrite size */ avio_seek(pb, curpos, SEEK_SET); return curpos - pos; } static int co64_required(const MOVTrack *track) { if (track->entry > 0 && track->cluster[track->entry - 1].pos + track->data_offset > UINT32_MAX) return 1; return 0; } static int is_cover_image(const AVStream *st) { /* Eg. AV_DISPOSITION_ATTACHED_PIC | AV_DISPOSITION_TIMED_THUMBNAILS * is encoded as sparse video track */ return st && st->disposition == AV_DISPOSITION_ATTACHED_PIC; } static int rtp_hinting_needed(const AVStream *st) { /* Add hint tracks for each real audio and video stream */ if (is_cover_image(st)) return 0; return st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO || st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO; } /* Chunk offset atom */ static int mov_write_stco_tag(AVIOContext *pb, MOVTrack *track) { int i; int mode64 = co64_required(track); // use 32 bit size variant if possible int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ if (mode64) ffio_wfourcc(pb, "co64"); else ffio_wfourcc(pb, "stco"); avio_wb32(pb, 0); /* version & flags */ avio_wb32(pb, track->chunkCount); /* entry count */ for (i = 0; i < track->entry; i++) { if (!track->cluster[i].chunkNum) continue; if (mode64 == 1) avio_wb64(pb, track->cluster[i].pos + track->data_offset); else avio_wb32(pb, track->cluster[i].pos + track->data_offset); } return update_size(pb, pos); } /* Sample size atom */ static int mov_write_stsz_tag(AVIOContext *pb, MOVTrack *track) { int equalChunks = 1; int i, j, entries = 0, tst = -1, oldtst = -1; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "stsz"); avio_wb32(pb, 0); /* version & flags */ for (i = 0; i < track->entry; i++) { tst = track->cluster[i].size / track->cluster[i].entries; if (oldtst != -1 && tst != oldtst) equalChunks = 0; oldtst = tst; entries += track->cluster[i].entries; } if (equalChunks && track->entry) { int sSize = track->entry ? track->cluster[0].size / track->cluster[0].entries : 0; sSize = FFMAX(1, sSize); // adpcm mono case could make sSize == 0 avio_wb32(pb, sSize); // sample size avio_wb32(pb, entries); // sample count } else { avio_wb32(pb, 0); // sample size avio_wb32(pb, entries); // sample count for (i = 0; i < track->entry; i++) { for (j = 0; j < track->cluster[i].entries; j++) { avio_wb32(pb, track->cluster[i].size / track->cluster[i].entries); } } } return update_size(pb, pos); } /* Sample to chunk atom */ static int mov_write_stsc_tag(AVIOContext *pb, MOVTrack *track) { int index = 0, oldval = -1, i; int64_t entryPos, curpos; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "stsc"); avio_wb32(pb, 0); // version & flags entryPos = avio_tell(pb); avio_wb32(pb, track->chunkCount); // entry count for (i = 0; i < track->entry; i++) { if (oldval != track->cluster[i].samples_in_chunk && track->cluster[i].chunkNum) { avio_wb32(pb, track->cluster[i].chunkNum); // first chunk avio_wb32(pb, track->cluster[i].samples_in_chunk); // samples per chunk avio_wb32(pb, 0x1); // sample description index oldval = track->cluster[i].samples_in_chunk; index++; } } curpos = avio_tell(pb); avio_seek(pb, entryPos, SEEK_SET); avio_wb32(pb, index); // rewrite size avio_seek(pb, curpos, SEEK_SET); return update_size(pb, pos); } /* Sync sample atom */ static int mov_write_stss_tag(AVIOContext *pb, MOVTrack *track, uint32_t flag) { int64_t curpos, entryPos; int i, index = 0; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); // size ffio_wfourcc(pb, flag == MOV_SYNC_SAMPLE ? "stss" : "stps"); avio_wb32(pb, 0); // version & flags entryPos = avio_tell(pb); avio_wb32(pb, track->entry); // entry count for (i = 0; i < track->entry; i++) { if (track->cluster[i].flags & flag) { avio_wb32(pb, i + 1); index++; } } curpos = avio_tell(pb); avio_seek(pb, entryPos, SEEK_SET); avio_wb32(pb, index); // rewrite size avio_seek(pb, curpos, SEEK_SET); return update_size(pb, pos); } /* Sample dependency atom */ static int mov_write_sdtp_tag(AVIOContext *pb, MOVTrack *track) { int i; uint8_t leading, dependent, reference, redundancy; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); // size ffio_wfourcc(pb, "sdtp"); avio_wb32(pb, 0); // version & flags for (i = 0; i < track->entry; i++) { dependent = MOV_SAMPLE_DEPENDENCY_YES; leading = reference = redundancy = MOV_SAMPLE_DEPENDENCY_UNKNOWN; if (track->cluster[i].flags & MOV_DISPOSABLE_SAMPLE) { reference = MOV_SAMPLE_DEPENDENCY_NO; } if (track->cluster[i].flags & MOV_SYNC_SAMPLE) { dependent = MOV_SAMPLE_DEPENDENCY_NO; } avio_w8(pb, (leading << 6) | (dependent << 4) | (reference << 2) | redundancy); } return update_size(pb, pos); } static int mov_write_amr_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 0x11); /* size */ if (track->mode == MODE_MOV) ffio_wfourcc(pb, "samr"); else ffio_wfourcc(pb, "damr"); ffio_wfourcc(pb, "FFMP"); avio_w8(pb, 0); /* decoder version */ avio_wb16(pb, 0x81FF); /* Mode set (all modes for AMR_NB) */ avio_w8(pb, 0x00); /* Mode change period (no restriction) */ avio_w8(pb, 0x01); /* Frames per sample */ return 0x11; } struct eac3_info { AVPacket *pkt; uint8_t ec3_done; uint8_t num_blocks; /* Layout of the EC3SpecificBox */ /* maximum bitrate */ uint16_t data_rate; int8_t ac3_bit_rate_code; /* number of independent substreams */ uint8_t num_ind_sub; struct { /* sample rate code (see ff_ac3_sample_rate_tab) 2 bits */ uint8_t fscod; /* bit stream identification 5 bits */ uint8_t bsid; /* one bit reserved */ /* audio service mixing (not supported yet) 1 bit */ /* bit stream mode 3 bits */ uint8_t bsmod; /* audio coding mode 3 bits */ uint8_t acmod; /* sub woofer on 1 bit */ uint8_t lfeon; /* 3 bits reserved */ /* number of dependent substreams associated with this substream 4 bits */ uint8_t num_dep_sub; /* channel locations of the dependent substream(s), if any, 9 bits */ uint16_t chan_loc; /* if there is no dependent substream, then one bit reserved instead */ } substream[1]; /* TODO: support 8 independent substreams */ }; static int mov_write_ac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { struct eac3_info *info = track->eac3_priv; PutBitContext pbc; uint8_t buf[3]; if (!info || !info->ec3_done) { av_log(s, AV_LOG_ERROR, "Cannot write moov atom before AC3 packets." " Set the delay_moov flag to fix this.\n"); return AVERROR(EINVAL); } if (info->substream[0].bsid > 8) { av_log(s, AV_LOG_ERROR, "RealAudio AC-3/DolbyNet with bsid %d is not defined by the " "ISOBMFF specification in ETSI TS 102 366!\n", info->substream[0].bsid); return AVERROR(EINVAL); } if (info->ac3_bit_rate_code < 0) { av_log(s, AV_LOG_ERROR, "No valid AC3 bit rate code for data rate of %d!\n", info->data_rate); return AVERROR(EINVAL); } avio_wb32(pb, 11); ffio_wfourcc(pb, "dac3"); init_put_bits(&pbc, buf, sizeof(buf)); put_bits(&pbc, 2, info->substream[0].fscod); put_bits(&pbc, 5, info->substream[0].bsid); put_bits(&pbc, 3, info->substream[0].bsmod); put_bits(&pbc, 3, info->substream[0].acmod); put_bits(&pbc, 1, info->substream[0].lfeon); put_bits(&pbc, 5, info->ac3_bit_rate_code); // bit_rate_code put_bits(&pbc, 5, 0); // reserved flush_put_bits(&pbc); avio_write(pb, buf, sizeof(buf)); return 11; } static int handle_eac3(MOVMuxContext *mov, AVPacket *pkt, MOVTrack *track) { AC3HeaderInfo *hdr = NULL; struct eac3_info *info; int num_blocks, ret; if (!track->eac3_priv) { if (!(track->eac3_priv = av_mallocz(sizeof(*info)))) return AVERROR(ENOMEM); ((struct eac3_info *)track->eac3_priv)->ac3_bit_rate_code = -1; } info = track->eac3_priv; if (!info->pkt && !(info->pkt = av_packet_alloc())) return AVERROR(ENOMEM); if ((ret = avpriv_ac3_parse_header(&hdr, pkt->data, pkt->size)) < 0) { if (ret == AVERROR(ENOMEM)) goto end; /* drop the packets until we see a good one */ if (!track->entry) { av_log(mov->fc, AV_LOG_WARNING, "Dropping invalid packet from start of the stream\n"); ret = 0; } else ret = AVERROR_INVALIDDATA; goto end; } info->data_rate = FFMAX(info->data_rate, hdr->bit_rate / 1000); info->ac3_bit_rate_code = FFMAX(info->ac3_bit_rate_code, hdr->ac3_bit_rate_code); num_blocks = hdr->num_blocks; if (!info->ec3_done) { /* AC-3 substream must be the first one */ if (hdr->bitstream_id <= 10 && hdr->substreamid != 0) { ret = AVERROR(EINVAL); goto end; } /* this should always be the case, given that our AC-3 parser * concatenates dependent frames to their independent parent */ if (hdr->frame_type == EAC3_FRAME_TYPE_INDEPENDENT || hdr->frame_type == EAC3_FRAME_TYPE_AC3_CONVERT) { /* substream ids must be incremental */ if (hdr->substreamid > info->num_ind_sub + 1) { ret = AVERROR(EINVAL); goto end; } if (hdr->substreamid == info->num_ind_sub + 1) { //info->num_ind_sub++; avpriv_request_sample(mov->fc, "Multiple independent substreams"); ret = AVERROR_PATCHWELCOME; goto end; } else if (hdr->substreamid < info->num_ind_sub || hdr->substreamid == 0 && info->substream[0].bsid) { info->ec3_done = 1; goto concatenate; } } else { if (hdr->substreamid != 0) { avpriv_request_sample(mov->fc, "Multiple non EAC3 independent substreams"); ret = AVERROR_PATCHWELCOME; goto end; } } /* fill the info needed for the "dec3" atom */ info->substream[hdr->substreamid].fscod = hdr->sr_code; info->substream[hdr->substreamid].bsid = hdr->bitstream_id; info->substream[hdr->substreamid].bsmod = hdr->bitstream_mode; info->substream[hdr->substreamid].acmod = hdr->channel_mode; info->substream[hdr->substreamid].lfeon = hdr->lfe_on; if (track->par->codec_id == AV_CODEC_ID_AC3) { // with AC-3 we only require the information of a single packet, // so we can finish as soon as the basic values of the bit stream // have been set to the track's informational structure. info->ec3_done = 1; goto concatenate; } /* Parse dependent substream(s), if any */ if (pkt->size != hdr->frame_size) { int cumul_size = hdr->frame_size; int parent = hdr->substreamid; while (cumul_size != pkt->size) { GetBitContext gbc; int i; ret = avpriv_ac3_parse_header(&hdr, pkt->data + cumul_size, pkt->size - cumul_size); if (ret < 0) goto end; if (hdr->frame_type != EAC3_FRAME_TYPE_DEPENDENT) { ret = AVERROR(EINVAL); goto end; } info->substream[parent].num_dep_sub++; ret /= 8; /* header is parsed up to lfeon, but custom channel map may be needed */ init_get_bits8(&gbc, pkt->data + cumul_size + ret, pkt->size - cumul_size - ret); /* skip bsid */ skip_bits(&gbc, 5); /* skip volume control params */ for (i = 0; i < (hdr->channel_mode ? 1 : 2); i++) { skip_bits(&gbc, 5); // skip dialog normalization if (get_bits1(&gbc)) { skip_bits(&gbc, 8); // skip compression gain word } } /* get the dependent stream channel map, if exists */ if (get_bits1(&gbc)) info->substream[parent].chan_loc |= (get_bits(&gbc, 16) >> 5) & 0x1f; else info->substream[parent].chan_loc |= hdr->channel_mode; cumul_size += hdr->frame_size; } } } concatenate: if (!info->num_blocks && num_blocks == 6) { ret = pkt->size; goto end; } else if (info->num_blocks + num_blocks > 6) { ret = AVERROR_INVALIDDATA; goto end; } if (!info->num_blocks) { ret = av_packet_ref(info->pkt, pkt); if (!ret) info->num_blocks = num_blocks; goto end; } else { if ((ret = av_grow_packet(info->pkt, pkt->size)) < 0) goto end; memcpy(info->pkt->data + info->pkt->size - pkt->size, pkt->data, pkt->size); info->num_blocks += num_blocks; info->pkt->duration += pkt->duration; if (info->num_blocks != 6) goto end; av_packet_unref(pkt); av_packet_move_ref(pkt, info->pkt); info->num_blocks = 0; } ret = pkt->size; end: av_free(hdr); return ret; } static int mov_write_eac3_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { PutBitContext pbc; uint8_t *buf; struct eac3_info *info; int size, i; if (!track->eac3_priv) { av_log(s, AV_LOG_ERROR, "Cannot write moov atom before EAC3 packets parsed.\n"); return AVERROR(EINVAL); } info = track->eac3_priv; size = 2 + ((34 * (info->num_ind_sub + 1) + 7) >> 3); buf = av_malloc(size); if (!buf) { return AVERROR(ENOMEM); } init_put_bits(&pbc, buf, size); put_bits(&pbc, 13, info->data_rate); put_bits(&pbc, 3, info->num_ind_sub); for (i = 0; i <= info->num_ind_sub; i++) { put_bits(&pbc, 2, info->substream[i].fscod); put_bits(&pbc, 5, info->substream[i].bsid); put_bits(&pbc, 1, 0); /* reserved */ put_bits(&pbc, 1, 0); /* asvc */ put_bits(&pbc, 3, info->substream[i].bsmod); put_bits(&pbc, 3, info->substream[i].acmod); put_bits(&pbc, 1, info->substream[i].lfeon); put_bits(&pbc, 5, 0); /* reserved */ put_bits(&pbc, 4, info->substream[i].num_dep_sub); if (!info->substream[i].num_dep_sub) { put_bits(&pbc, 1, 0); /* reserved */ } else { put_bits(&pbc, 9, info->substream[i].chan_loc); } } flush_put_bits(&pbc); size = put_bytes_output(&pbc); avio_wb32(pb, size + 8); ffio_wfourcc(pb, "dec3"); avio_write(pb, buf, size); av_free(buf); return size; } /** * This function writes extradata "as is". * Extradata must be formatted like a valid atom (with size and tag). */ static int mov_write_extradata_tag(AVIOContext *pb, MOVTrack *track) { avio_write(pb, track->par->extradata, track->par->extradata_size); return track->par->extradata_size; } static int mov_write_enda_tag(AVIOContext *pb) { avio_wb32(pb, 10); ffio_wfourcc(pb, "enda"); avio_wb16(pb, 1); /* little endian */ return 10; } static int mov_write_enda_tag_be(AVIOContext *pb) { avio_wb32(pb, 10); ffio_wfourcc(pb, "enda"); avio_wb16(pb, 0); /* big endian */ return 10; } static void put_descr(AVIOContext *pb, int tag, unsigned int size) { int i = 3; avio_w8(pb, tag); for (; i > 0; i--) avio_w8(pb, (size >> (7 * i)) | 0x80); avio_w8(pb, size & 0x7F); } static unsigned compute_avg_bitrate(MOVTrack *track) { uint64_t size = 0; int i; if (!track->track_duration) return 0; for (i = 0; i < track->entry; i++) size += track->cluster[i].size; return size * 8 * track->timescale / track->track_duration; } struct mpeg4_bit_rate_values { uint32_t buffer_size; ///< Size of the decoding buffer for the elementary stream in bytes. uint32_t max_bit_rate; ///< Maximum rate in bits/second over any window of one second. uint32_t avg_bit_rate; ///< Average rate in bits/second over the entire presentation. }; static struct mpeg4_bit_rate_values calculate_mpeg4_bit_rates(MOVTrack *track) { AVCPBProperties *props = track->st ? (AVCPBProperties*)av_stream_get_side_data(track->st, AV_PKT_DATA_CPB_PROPERTIES, NULL) : NULL; struct mpeg4_bit_rate_values bit_rates = { 0 }; bit_rates.avg_bit_rate = compute_avg_bitrate(track); if (!bit_rates.avg_bit_rate) { // if the average bit rate cannot be calculated at this point, such as // in the case of fragmented MP4, utilize the following values as // fall-back in priority order: // // 1. average bit rate property // 2. bit rate (usually average over the whole clip) // 3. maximum bit rate property if (props && props->avg_bitrate) { bit_rates.avg_bit_rate = props->avg_bitrate; } else if (track->par->bit_rate) { bit_rates.avg_bit_rate = track->par->bit_rate; } else if (props && props->max_bitrate) { bit_rates.avg_bit_rate = props->max_bitrate; } } // (FIXME should be max rate in any 1 sec window) bit_rates.max_bit_rate = FFMAX(track->par->bit_rate, bit_rates.avg_bit_rate); // utilize values from properties if we have them available if (props) { bit_rates.max_bit_rate = FFMAX(bit_rates.max_bit_rate, props->max_bitrate); bit_rates.buffer_size = props->buffer_size / 8; } return bit_rates; } static int mov_write_esds_tag(AVIOContext *pb, MOVTrack *track) // Basic { struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track); int64_t pos = avio_tell(pb); int decoder_specific_info_len = track->vos_len ? 5 + track->vos_len : 0; avio_wb32(pb, 0); // size ffio_wfourcc(pb, "esds"); avio_wb32(pb, 0); // Version // ES descriptor put_descr(pb, 0x03, 3 + 5+13 + decoder_specific_info_len + 5+1); avio_wb16(pb, track->track_id); avio_w8(pb, 0x00); // flags (= no flags) // DecoderConfig descriptor put_descr(pb, 0x04, 13 + decoder_specific_info_len); // Object type indication if ((track->par->codec_id == AV_CODEC_ID_MP2 || track->par->codec_id == AV_CODEC_ID_MP3) && track->par->sample_rate > 24000) avio_w8(pb, 0x6B); // 11172-3 else avio_w8(pb, ff_codec_get_tag(ff_mp4_obj_type, track->par->codec_id)); // the following fields is made of 6 bits to identify the streamtype (4 for video, 5 for audio) // plus 1 bit to indicate upstream and 1 bit set to 1 (reserved) if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) avio_w8(pb, (0x38 << 2) | 1); // flags (= NeroSubpicStream) else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) avio_w8(pb, 0x15); // flags (= Audiostream) else avio_w8(pb, 0x11); // flags (= Visualstream) avio_wb24(pb, bit_rates.buffer_size); // Buffersize DB avio_wb32(pb, bit_rates.max_bit_rate); // maxbitrate avio_wb32(pb, bit_rates.avg_bit_rate); if (track->vos_len) { // DecoderSpecific info descriptor put_descr(pb, 0x05, track->vos_len); avio_write(pb, track->vos_data, track->vos_len); } // SL descriptor put_descr(pb, 0x06, 1); avio_w8(pb, 0x02); return update_size(pb, pos); } static int mov_pcm_le_gt16(enum AVCodecID codec_id) { return codec_id == AV_CODEC_ID_PCM_S24LE || codec_id == AV_CODEC_ID_PCM_S32LE || codec_id == AV_CODEC_ID_PCM_F32LE || codec_id == AV_CODEC_ID_PCM_F64LE; } static int mov_pcm_be_gt16(enum AVCodecID codec_id) { return codec_id == AV_CODEC_ID_PCM_S24BE || codec_id == AV_CODEC_ID_PCM_S32BE || codec_id == AV_CODEC_ID_PCM_F32BE || codec_id == AV_CODEC_ID_PCM_F64BE; } static int mov_write_ms_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int ret; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); avio_wl32(pb, track->tag); // store it byteswapped track->par->codec_tag = av_bswap16(track->tag >> 16); if ((ret = ff_put_wav_header(s, pb, track->par, 0)) < 0) return ret; return update_size(pb, pos); } static int mov_write_wfex_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int ret; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "wfex"); if ((ret = ff_put_wav_header(s, pb, track->st->codecpar, FF_PUT_WAV_HEADER_FORCE_WAVEFORMATEX)) < 0) return ret; return update_size(pb, pos); } static int mov_write_dfla_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "dfLa"); avio_w8(pb, 0); /* version */ avio_wb24(pb, 0); /* flags */ /* Expect the encoder to pass a METADATA_BLOCK_TYPE_STREAMINFO. */ if (track->par->extradata_size != FLAC_STREAMINFO_SIZE) return AVERROR_INVALIDDATA; /* TODO: Write other METADATA_BLOCK_TYPEs if the encoder makes them available. */ avio_w8(pb, 1 << 7 | FLAC_METADATA_TYPE_STREAMINFO); /* LastMetadataBlockFlag << 7 | BlockType */ avio_wb24(pb, track->par->extradata_size); /* Length */ avio_write(pb, track->par->extradata, track->par->extradata_size); /* BlockData[Length] */ return update_size(pb, pos); } static int mov_write_dops_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); int channels, channel_map; avio_wb32(pb, 0); ffio_wfourcc(pb, "dOps"); avio_w8(pb, 0); /* Version */ if (track->par->extradata_size < 19) { av_log(s, AV_LOG_ERROR, "invalid extradata size\n"); return AVERROR_INVALIDDATA; } /* extradata contains an Ogg OpusHead, other than byte-ordering and OpusHead's preceeding magic/version, OpusSpecificBox is currently identical. */ channels = AV_RB8(track->par->extradata + 9); channel_map = AV_RB8(track->par->extradata + 18); avio_w8(pb, channels); /* OuputChannelCount */ avio_wb16(pb, AV_RL16(track->par->extradata + 10)); /* PreSkip */ avio_wb32(pb, AV_RL32(track->par->extradata + 12)); /* InputSampleRate */ avio_wb16(pb, AV_RL16(track->par->extradata + 16)); /* OutputGain */ avio_w8(pb, channel_map); /* ChannelMappingFamily */ /* Write the rest of the header out without byte-swapping. */ if (channel_map) { if (track->par->extradata_size < 21 + channels) { av_log(s, AV_LOG_ERROR, "invalid extradata size\n"); return AVERROR_INVALIDDATA; } avio_write(pb, track->par->extradata + 19, 2 + channels); /* ChannelMappingTable */ } return update_size(pb, pos); } static int mov_write_dmlp_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); int length; avio_wb32(pb, 0); ffio_wfourcc(pb, "dmlp"); if (track->vos_len < 20) { av_log(s, AV_LOG_ERROR, "Cannot write moov atom before TrueHD packets." " Set the delay_moov flag to fix this.\n"); return AVERROR(EINVAL); } length = (AV_RB16(track->vos_data) & 0xFFF) * 2; if (length < 20 || length > track->vos_len) return AVERROR_INVALIDDATA; // Only TrueHD is supported if (AV_RB32(track->vos_data + 4) != 0xF8726FBA) return AVERROR_INVALIDDATA; avio_wb32(pb, AV_RB32(track->vos_data + 8)); /* format_info */ avio_wb16(pb, AV_RB16(track->vos_data + 18) << 1); /* peak_data_rate */ avio_wb32(pb, 0); /* reserved */ return update_size(pb, pos); } static int mov_write_chan_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { uint32_t layout_tag, bitmap, *channel_desc; int64_t pos = avio_tell(pb); int num_desc, ret; if (track->multichannel_as_mono) return 0; ret = ff_mov_get_channel_layout_tag(track->par, &layout_tag, &bitmap, &channel_desc); if (ret < 0) { if (ret == AVERROR(ENOSYS)) { av_log(s, AV_LOG_WARNING, "not writing 'chan' tag due to " "lack of channel information\n"); ret = 0; } return ret; } if (layout_tag == MOV_CH_LAYOUT_MONO && track->mono_as_fc > 0) { av_assert0(!channel_desc); channel_desc = av_malloc(sizeof(*channel_desc)); if (!channel_desc) return AVERROR(ENOMEM); layout_tag = 0; bitmap = 0; *channel_desc = 3; // channel label "Center" } num_desc = layout_tag ? 0 : track->par->ch_layout.nb_channels; avio_wb32(pb, 0); // Size ffio_wfourcc(pb, "chan"); // Type avio_w8(pb, 0); // Version avio_wb24(pb, 0); // Flags avio_wb32(pb, layout_tag); // mChannelLayoutTag avio_wb32(pb, bitmap); // mChannelBitmap avio_wb32(pb, num_desc); // mNumberChannelDescriptions for (int i = 0; i < num_desc; i++) { avio_wb32(pb, channel_desc[i]); // mChannelLabel avio_wb32(pb, 0); // mChannelFlags avio_wl32(pb, 0); // mCoordinates[0] avio_wl32(pb, 0); // mCoordinates[1] avio_wl32(pb, 0); // mCoordinates[2] } av_free(channel_desc); return update_size(pb, pos); } static int mov_write_wave_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "wave"); if (track->par->codec_id != AV_CODEC_ID_QDM2) { avio_wb32(pb, 12); /* size */ ffio_wfourcc(pb, "frma"); avio_wl32(pb, track->tag); } if (track->par->codec_id == AV_CODEC_ID_AAC) { /* useless atom needed by mplayer, ipod, not needed by quicktime */ avio_wb32(pb, 12); /* size */ ffio_wfourcc(pb, "mp4a"); avio_wb32(pb, 0); mov_write_esds_tag(pb, track); } else if (mov_pcm_le_gt16(track->par->codec_id)) { mov_write_enda_tag(pb); } else if (mov_pcm_be_gt16(track->par->codec_id)) { mov_write_enda_tag_be(pb); } else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) { mov_write_amr_tag(pb, track); } else if (track->par->codec_id == AV_CODEC_ID_AC3) { mov_write_ac3_tag(s, pb, track); } else if (track->par->codec_id == AV_CODEC_ID_EAC3) { mov_write_eac3_tag(s, pb, track); } else if (track->par->codec_id == AV_CODEC_ID_ALAC || track->par->codec_id == AV_CODEC_ID_QDM2) { mov_write_extradata_tag(pb, track); } else if (track->par->codec_id == AV_CODEC_ID_ADPCM_MS || track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) { mov_write_ms_tag(s, pb, track); } avio_wb32(pb, 8); /* size */ avio_wb32(pb, 0); /* null tag */ return update_size(pb, pos); } static int mov_write_dvc1_structs(MOVTrack *track, uint8_t *buf) { uint8_t *unescaped; const uint8_t *start, *next, *end = track->vos_data + track->vos_len; int unescaped_size, seq_found = 0; int level = 0, interlace = 0; int packet_seq = track->vc1_info.packet_seq; int packet_entry = track->vc1_info.packet_entry; int slices = track->vc1_info.slices; PutBitContext pbc; if (track->start_dts == AV_NOPTS_VALUE) { /* No packets written yet, vc1_info isn't authoritative yet. */ /* Assume inline sequence and entry headers. */ packet_seq = packet_entry = 1; av_log(NULL, AV_LOG_WARNING, "moov atom written before any packets, unable to write correct " "dvc1 atom. Set the delay_moov flag to fix this.\n"); } unescaped = av_mallocz(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE); if (!unescaped) return AVERROR(ENOMEM); start = find_next_marker(track->vos_data, end); for (next = start; next < end; start = next) { GetBitContext gb; int size; next = find_next_marker(start + 4, end); size = next - start - 4; if (size <= 0) continue; unescaped_size = vc1_unescape_buffer(start + 4, size, unescaped); init_get_bits(&gb, unescaped, 8 * unescaped_size); if (AV_RB32(start) == VC1_CODE_SEQHDR) { int profile = get_bits(&gb, 2); if (profile != PROFILE_ADVANCED) { av_free(unescaped); return AVERROR(ENOSYS); } seq_found = 1; level = get_bits(&gb, 3); /* chromaformat, frmrtq_postproc, bitrtq_postproc, postprocflag, * width, height */ skip_bits_long(&gb, 2 + 3 + 5 + 1 + 2*12); skip_bits(&gb, 1); /* broadcast */ interlace = get_bits1(&gb); skip_bits(&gb, 4); /* tfcntrflag, finterpflag, reserved, psf */ } } if (!seq_found) { av_free(unescaped); return AVERROR(ENOSYS); } init_put_bits(&pbc, buf, 7); /* VC1DecSpecStruc */ put_bits(&pbc, 4, 12); /* profile - advanced */ put_bits(&pbc, 3, level); put_bits(&pbc, 1, 0); /* reserved */ /* VC1AdvDecSpecStruc */ put_bits(&pbc, 3, level); put_bits(&pbc, 1, 0); /* cbr */ put_bits(&pbc, 6, 0); /* reserved */ put_bits(&pbc, 1, !interlace); /* no interlace */ put_bits(&pbc, 1, !packet_seq); /* no multiple seq */ put_bits(&pbc, 1, !packet_entry); /* no multiple entry */ put_bits(&pbc, 1, !slices); /* no slice code */ put_bits(&pbc, 1, 0); /* no bframe */ put_bits(&pbc, 1, 0); /* reserved */ /* framerate */ if (track->st->avg_frame_rate.num > 0 && track->st->avg_frame_rate.den > 0) put_bits32(&pbc, track->st->avg_frame_rate.num / track->st->avg_frame_rate.den); else put_bits32(&pbc, 0xffffffff); flush_put_bits(&pbc); av_free(unescaped); return 0; } static int mov_write_dvc1_tag(AVIOContext *pb, MOVTrack *track) { uint8_t buf[7] = { 0 }; int ret; if ((ret = mov_write_dvc1_structs(track, buf)) < 0) return ret; avio_wb32(pb, track->vos_len + 8 + sizeof(buf)); ffio_wfourcc(pb, "dvc1"); avio_write(pb, buf, sizeof(buf)); avio_write(pb, track->vos_data, track->vos_len); return 0; } static int mov_write_glbl_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, track->vos_len + 8); ffio_wfourcc(pb, "glbl"); avio_write(pb, track->vos_data, track->vos_len); return 8 + track->vos_len; } /** * Compute flags for 'lpcm' tag. * See CoreAudioTypes and AudioStreamBasicDescription at Apple. */ static int mov_get_lpcm_flags(enum AVCodecID codec_id) { switch (codec_id) { case AV_CODEC_ID_PCM_F32BE: case AV_CODEC_ID_PCM_F64BE: return 11; case AV_CODEC_ID_PCM_F32LE: case AV_CODEC_ID_PCM_F64LE: return 9; case AV_CODEC_ID_PCM_U8: return 10; case AV_CODEC_ID_PCM_S16BE: case AV_CODEC_ID_PCM_S24BE: case AV_CODEC_ID_PCM_S32BE: return 14; case AV_CODEC_ID_PCM_S8: case AV_CODEC_ID_PCM_S16LE: case AV_CODEC_ID_PCM_S24LE: case AV_CODEC_ID_PCM_S32LE: return 12; default: return 0; } } static int get_cluster_duration(MOVTrack *track, int cluster_idx) { int64_t next_dts; if (cluster_idx >= track->entry) return 0; if (cluster_idx + 1 == track->entry) next_dts = track->track_duration + track->start_dts; else next_dts = track->cluster[cluster_idx + 1].dts; next_dts -= track->cluster[cluster_idx].dts; av_assert0(next_dts >= 0); av_assert0(next_dts <= INT_MAX); return next_dts; } static int get_samples_per_packet(MOVTrack *track) { int i, first_duration; // return track->par->frame_size; /* use 1 for raw PCM */ if (!track->audio_vbr) return 1; /* check to see if duration is constant for all clusters */ if (!track->entry) return 0; first_duration = get_cluster_duration(track, 0); for (i = 1; i < track->entry; i++) { if (get_cluster_duration(track, i) != first_duration) return 0; } return first_duration; } static int mov_write_btrt_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track); if (!bit_rates.max_bit_rate && !bit_rates.avg_bit_rate && !bit_rates.buffer_size) // no useful data to be written, skip return 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "btrt"); avio_wb32(pb, bit_rates.buffer_size); avio_wb32(pb, bit_rates.max_bit_rate); avio_wb32(pb, bit_rates.avg_bit_rate); return update_size(pb, pos); } static int mov_write_audio_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int version = 0; uint32_t tag = track->tag; int ret = 0; if (track->mode == MODE_MOV) { if (track->timescale > UINT16_MAX || !track->par->ch_layout.nb_channels) { if (mov_get_lpcm_flags(track->par->codec_id)) tag = AV_RL32("lpcm"); version = 2; } else if (track->audio_vbr || mov_pcm_le_gt16(track->par->codec_id) || mov_pcm_be_gt16(track->par->codec_id) || track->par->codec_id == AV_CODEC_ID_ADPCM_MS || track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV || track->par->codec_id == AV_CODEC_ID_QDM2) { version = 1; } } avio_wb32(pb, 0); /* size */ if (mov->encryption_scheme != MOV_ENC_NONE) { ffio_wfourcc(pb, "enca"); } else { avio_wl32(pb, tag); // store it byteswapped } avio_wb32(pb, 0); /* Reserved */ avio_wb16(pb, 0); /* Reserved */ avio_wb16(pb, 1); /* Data-reference index, XXX == 1 */ /* SoundDescription */ avio_wb16(pb, version); /* Version */ avio_wb16(pb, 0); /* Revision level */ avio_wb32(pb, 0); /* Reserved */ if (version == 2) { avio_wb16(pb, 3); avio_wb16(pb, 16); avio_wb16(pb, 0xfffe); avio_wb16(pb, 0); avio_wb32(pb, 0x00010000); avio_wb32(pb, 72); avio_wb64(pb, av_double2int(track->par->sample_rate)); avio_wb32(pb, track->par->ch_layout.nb_channels); avio_wb32(pb, 0x7F000000); avio_wb32(pb, av_get_bits_per_sample(track->par->codec_id)); avio_wb32(pb, mov_get_lpcm_flags(track->par->codec_id)); avio_wb32(pb, track->sample_size); avio_wb32(pb, get_samples_per_packet(track)); } else { if (track->mode == MODE_MOV) { avio_wb16(pb, track->par->ch_layout.nb_channels); if (track->par->codec_id == AV_CODEC_ID_PCM_U8 || track->par->codec_id == AV_CODEC_ID_PCM_S8) avio_wb16(pb, 8); /* bits per sample */ else if (track->par->codec_id == AV_CODEC_ID_ADPCM_G726) avio_wb16(pb, track->par->bits_per_coded_sample); else avio_wb16(pb, 16); avio_wb16(pb, track->audio_vbr ? -2 : 0); /* compression ID */ } else { /* reserved for mp4/3gp */ if (track->par->codec_id == AV_CODEC_ID_FLAC || track->par->codec_id == AV_CODEC_ID_ALAC || track->par->codec_id == AV_CODEC_ID_OPUS) { avio_wb16(pb, track->par->ch_layout.nb_channels); } else { avio_wb16(pb, 2); } if (track->par->codec_id == AV_CODEC_ID_FLAC || track->par->codec_id == AV_CODEC_ID_ALAC) { avio_wb16(pb, track->par->bits_per_raw_sample); } else { avio_wb16(pb, 16); } avio_wb16(pb, 0); } avio_wb16(pb, 0); /* packet size (= 0) */ if (track->par->codec_id == AV_CODEC_ID_OPUS) avio_wb16(pb, 48000); else if (track->par->codec_id == AV_CODEC_ID_TRUEHD) avio_wb32(pb, track->par->sample_rate); else avio_wb16(pb, track->par->sample_rate <= UINT16_MAX ? track->par->sample_rate : 0); if (track->par->codec_id != AV_CODEC_ID_TRUEHD) avio_wb16(pb, 0); /* Reserved */ } if (version == 1) { /* SoundDescription V1 extended info */ if (mov_pcm_le_gt16(track->par->codec_id) || mov_pcm_be_gt16(track->par->codec_id)) avio_wb32(pb, 1); /* must be 1 for uncompressed formats */ else avio_wb32(pb, track->par->frame_size); /* Samples per packet */ avio_wb32(pb, track->sample_size / track->par->ch_layout.nb_channels); /* Bytes per packet */ avio_wb32(pb, track->sample_size); /* Bytes per frame */ avio_wb32(pb, 2); /* Bytes per sample */ } if (track->mode == MODE_MOV && (track->par->codec_id == AV_CODEC_ID_AAC || track->par->codec_id == AV_CODEC_ID_AC3 || track->par->codec_id == AV_CODEC_ID_EAC3 || track->par->codec_id == AV_CODEC_ID_AMR_NB || track->par->codec_id == AV_CODEC_ID_ALAC || track->par->codec_id == AV_CODEC_ID_ADPCM_MS || track->par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV || track->par->codec_id == AV_CODEC_ID_QDM2 || (mov_pcm_le_gt16(track->par->codec_id) && version==1) || (mov_pcm_be_gt16(track->par->codec_id) && version==1))) ret = mov_write_wave_tag(s, pb, track); else if (track->tag == MKTAG('m','p','4','a')) ret = mov_write_esds_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_AMR_NB) ret = mov_write_amr_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_AC3) ret = mov_write_ac3_tag(s, pb, track); else if (track->par->codec_id == AV_CODEC_ID_EAC3) ret = mov_write_eac3_tag(s, pb, track); else if (track->par->codec_id == AV_CODEC_ID_ALAC) ret = mov_write_extradata_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) ret = mov_write_wfex_tag(s, pb, track); else if (track->par->codec_id == AV_CODEC_ID_FLAC) ret = mov_write_dfla_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_OPUS) ret = mov_write_dops_tag(s, pb, track); else if (track->par->codec_id == AV_CODEC_ID_TRUEHD) ret = mov_write_dmlp_tag(s, pb, track); else if (track->vos_len > 0) ret = mov_write_glbl_tag(pb, track); if (ret < 0) return ret; if (track->mode == MODE_MOV && track->par->codec_type == AVMEDIA_TYPE_AUDIO && ((ret = mov_write_chan_tag(s, pb, track)) < 0)) { return ret; } if (mov->encryption_scheme != MOV_ENC_NONE && ((ret = ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid)) < 0)) { return ret; } if (mov->write_btrt && ((ret = mov_write_btrt_tag(pb, track)) < 0)) return ret; ret = update_size(pb, pos); return ret; } static int mov_write_d263_tag(AVIOContext *pb) { avio_wb32(pb, 0xf); /* size */ ffio_wfourcc(pb, "d263"); ffio_wfourcc(pb, "FFMP"); avio_w8(pb, 0); /* decoder version */ /* FIXME use AVCodecContext level/profile, when encoder will set values */ avio_w8(pb, 0xa); /* level */ avio_w8(pb, 0); /* profile */ return 0xf; } static int mov_write_av1c_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "av1C"); ff_isom_write_av1c(pb, track->vos_data, track->vos_len, track->mode != MODE_AVIF); return update_size(pb, pos); } static int mov_write_avcc_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "avcC"); ff_isom_write_avcc(pb, track->vos_data, track->vos_len); return update_size(pb, pos); } static int mov_write_vpcc_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "vpcC"); avio_w8(pb, 1); /* version */ avio_wb24(pb, 0); /* flags */ ff_isom_write_vpcc(s, pb, track->par); return update_size(pb, pos); } static int mov_write_hvcc_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "hvcC"); if (track->tag == MKTAG('h','v','c','1')) ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 1); else ff_isom_write_hvcc(pb, track->vos_data, track->vos_len, 0); return update_size(pb, pos); } /* also used by all avid codecs (dv, imx, meridien) and their variants */ static int mov_write_avid_tag(AVIOContext *pb, MOVTrack *track) { int interlaced; int cid; int display_width = track->par->width; if (track->vos_data && track->vos_len > 0x29) { if (ff_dnxhd_parse_header_prefix(track->vos_data) != 0) { /* looks like a DNxHD bit stream */ interlaced = (track->vos_data[5] & 2); cid = AV_RB32(track->vos_data + 0x28); } else { av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream in vos_data\n"); return 0; } } else { av_log(NULL, AV_LOG_WARNING, "Could not locate DNxHD bit stream, vos_data too small\n"); return 0; } avio_wb32(pb, 24); /* size */ ffio_wfourcc(pb, "ACLR"); ffio_wfourcc(pb, "ACLR"); ffio_wfourcc(pb, "0001"); if (track->par->color_range == AVCOL_RANGE_MPEG || /* Legal range (16-235) */ track->par->color_range == AVCOL_RANGE_UNSPECIFIED) { avio_wb32(pb, 1); /* Corresponds to 709 in official encoder */ } else { /* Full range (0-255) */ avio_wb32(pb, 2); /* Corresponds to RGB in official encoder */ } avio_wb32(pb, 0); /* unknown */ if (track->tag == MKTAG('A','V','d','h')) { avio_wb32(pb, 32); ffio_wfourcc(pb, "ADHR"); ffio_wfourcc(pb, "0001"); avio_wb32(pb, cid); avio_wb32(pb, 0); /* unknown */ avio_wb32(pb, 1); /* unknown */ avio_wb32(pb, 0); /* unknown */ avio_wb32(pb, 0); /* unknown */ return 0; } avio_wb32(pb, 24); /* size */ ffio_wfourcc(pb, "APRG"); ffio_wfourcc(pb, "APRG"); ffio_wfourcc(pb, "0001"); avio_wb32(pb, 1); /* unknown */ avio_wb32(pb, 0); /* unknown */ avio_wb32(pb, 120); /* size */ ffio_wfourcc(pb, "ARES"); ffio_wfourcc(pb, "ARES"); ffio_wfourcc(pb, "0001"); avio_wb32(pb, cid); /* dnxhd cid, some id ? */ if ( track->par->sample_aspect_ratio.num > 0 && track->par->sample_aspect_ratio.den > 0) display_width = display_width * track->par->sample_aspect_ratio.num / track->par->sample_aspect_ratio.den; avio_wb32(pb, display_width); /* values below are based on samples created with quicktime and avid codecs */ if (interlaced) { avio_wb32(pb, track->par->height / 2); avio_wb32(pb, 2); /* unknown */ avio_wb32(pb, 0); /* unknown */ avio_wb32(pb, 4); /* unknown */ } else { avio_wb32(pb, track->par->height); avio_wb32(pb, 1); /* unknown */ avio_wb32(pb, 0); /* unknown */ if (track->par->height == 1080) avio_wb32(pb, 5); /* unknown */ else avio_wb32(pb, 6); /* unknown */ } /* padding */ ffio_fill(pb, 0, 10 * 8); return 0; } static int mov_write_dpxe_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 12); ffio_wfourcc(pb, "DpxE"); if (track->par->extradata_size >= 12 && !memcmp(&track->par->extradata[4], "DpxE", 4)) { avio_wb32(pb, track->par->extradata[11]); } else { avio_wb32(pb, 1); } return 0; } static int mov_get_dv_codec_tag(AVFormatContext *s, MOVTrack *track) { int tag; if (track->par->width == 720) { /* SD */ if (track->par->height == 480) { /* NTSC */ if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','n'); else tag = MKTAG('d','v','c',' '); }else if (track->par->format == AV_PIX_FMT_YUV422P) tag = MKTAG('d','v','5','p'); else if (track->par->format == AV_PIX_FMT_YUV420P) tag = MKTAG('d','v','c','p'); else tag = MKTAG('d','v','p','p'); } else if (track->par->height == 720) { /* HD 720 line */ if (track->st->time_base.den == 50) tag = MKTAG('d','v','h','q'); else tag = MKTAG('d','v','h','p'); } else if (track->par->height == 1080) { /* HD 1080 line */ if (track->st->time_base.den == 25) tag = MKTAG('d','v','h','5'); else tag = MKTAG('d','v','h','6'); } else { av_log(s, AV_LOG_ERROR, "unsupported height for dv codec\n"); return 0; } return tag; } static int defined_frame_rate(AVFormatContext *s, AVStream *st) { AVRational rational_framerate = st->avg_frame_rate; int rate = 0; if (rational_framerate.den != 0) rate = av_q2d(rational_framerate); return rate; } static int mov_get_mpeg2_xdcam_codec_tag(AVFormatContext *s, MOVTrack *track) { int tag = track->par->codec_tag; int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE; AVStream *st = track->st; int rate = defined_frame_rate(s, st); if (!tag) tag = MKTAG('m', '2', 'v', '1'); //fallback tag if (track->par->format == AV_PIX_FMT_YUV420P) { if (track->par->width == 1280 && track->par->height == 720) { if (!interlaced) { if (rate == 24) tag = MKTAG('x','d','v','4'); else if (rate == 25) tag = MKTAG('x','d','v','5'); else if (rate == 30) tag = MKTAG('x','d','v','1'); else if (rate == 50) tag = MKTAG('x','d','v','a'); else if (rate == 60) tag = MKTAG('x','d','v','9'); } } else if (track->par->width == 1440 && track->par->height == 1080) { if (!interlaced) { if (rate == 24) tag = MKTAG('x','d','v','6'); else if (rate == 25) tag = MKTAG('x','d','v','7'); else if (rate == 30) tag = MKTAG('x','d','v','8'); } else { if (rate == 25) tag = MKTAG('x','d','v','3'); else if (rate == 30) tag = MKTAG('x','d','v','2'); } } else if (track->par->width == 1920 && track->par->height == 1080) { if (!interlaced) { if (rate == 24) tag = MKTAG('x','d','v','d'); else if (rate == 25) tag = MKTAG('x','d','v','e'); else if (rate == 30) tag = MKTAG('x','d','v','f'); } else { if (rate == 25) tag = MKTAG('x','d','v','c'); else if (rate == 30) tag = MKTAG('x','d','v','b'); } } } else if (track->par->format == AV_PIX_FMT_YUV422P) { if (track->par->width == 1280 && track->par->height == 720) { if (!interlaced) { if (rate == 24) tag = MKTAG('x','d','5','4'); else if (rate == 25) tag = MKTAG('x','d','5','5'); else if (rate == 30) tag = MKTAG('x','d','5','1'); else if (rate == 50) tag = MKTAG('x','d','5','a'); else if (rate == 60) tag = MKTAG('x','d','5','9'); } } else if (track->par->width == 1920 && track->par->height == 1080) { if (!interlaced) { if (rate == 24) tag = MKTAG('x','d','5','d'); else if (rate == 25) tag = MKTAG('x','d','5','e'); else if (rate == 30) tag = MKTAG('x','d','5','f'); } else { if (rate == 25) tag = MKTAG('x','d','5','c'); else if (rate == 30) tag = MKTAG('x','d','5','b'); } } } return tag; } static int mov_get_h264_codec_tag(AVFormatContext *s, MOVTrack *track) { int tag = track->par->codec_tag; int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE; AVStream *st = track->st; int rate = defined_frame_rate(s, st); if (!tag) tag = MKTAG('a', 'v', 'c', 'i'); //fallback tag if (track->par->format == AV_PIX_FMT_YUV420P10) { if (track->par->width == 960 && track->par->height == 720) { if (!interlaced) { if (rate == 24) tag = MKTAG('a','i','5','p'); else if (rate == 25) tag = MKTAG('a','i','5','q'); else if (rate == 30) tag = MKTAG('a','i','5','p'); else if (rate == 50) tag = MKTAG('a','i','5','q'); else if (rate == 60) tag = MKTAG('a','i','5','p'); } } else if (track->par->width == 1440 && track->par->height == 1080) { if (!interlaced) { if (rate == 24) tag = MKTAG('a','i','5','3'); else if (rate == 25) tag = MKTAG('a','i','5','2'); else if (rate == 30) tag = MKTAG('a','i','5','3'); } else { if (rate == 50) tag = MKTAG('a','i','5','5'); else if (rate == 60) tag = MKTAG('a','i','5','6'); } } } else if (track->par->format == AV_PIX_FMT_YUV422P10) { if (track->par->width == 1280 && track->par->height == 720) { if (!interlaced) { if (rate == 24) tag = MKTAG('a','i','1','p'); else if (rate == 25) tag = MKTAG('a','i','1','q'); else if (rate == 30) tag = MKTAG('a','i','1','p'); else if (rate == 50) tag = MKTAG('a','i','1','q'); else if (rate == 60) tag = MKTAG('a','i','1','p'); } } else if (track->par->width == 1920 && track->par->height == 1080) { if (!interlaced) { if (rate == 24) tag = MKTAG('a','i','1','3'); else if (rate == 25) tag = MKTAG('a','i','1','2'); else if (rate == 30) tag = MKTAG('a','i','1','3'); } else { if (rate == 25) tag = MKTAG('a','i','1','5'); else if (rate == 50) tag = MKTAG('a','i','1','5'); else if (rate == 60) tag = MKTAG('a','i','1','6'); } } else if ( track->par->width == 4096 && track->par->height == 2160 || track->par->width == 3840 && track->par->height == 2160 || track->par->width == 2048 && track->par->height == 1080) { tag = MKTAG('a','i','v','x'); } } return tag; } static const struct { enum AVPixelFormat pix_fmt; uint32_t tag; unsigned bps; } mov_pix_fmt_tags[] = { { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','2'), 0 }, { AV_PIX_FMT_YUYV422, MKTAG('y','u','v','s'), 0 }, { AV_PIX_FMT_UYVY422, MKTAG('2','v','u','y'), 0 }, { AV_PIX_FMT_RGB555BE,MKTAG('r','a','w',' '), 16 }, { AV_PIX_FMT_RGB555LE,MKTAG('L','5','5','5'), 16 }, { AV_PIX_FMT_RGB565LE,MKTAG('L','5','6','5'), 16 }, { AV_PIX_FMT_RGB565BE,MKTAG('B','5','6','5'), 16 }, { AV_PIX_FMT_GRAY16BE,MKTAG('b','1','6','g'), 16 }, { AV_PIX_FMT_RGB24, MKTAG('r','a','w',' '), 24 }, { AV_PIX_FMT_BGR24, MKTAG('2','4','B','G'), 24 }, { AV_PIX_FMT_ARGB, MKTAG('r','a','w',' '), 32 }, { AV_PIX_FMT_BGRA, MKTAG('B','G','R','A'), 32 }, { AV_PIX_FMT_RGBA, MKTAG('R','G','B','A'), 32 }, { AV_PIX_FMT_ABGR, MKTAG('A','B','G','R'), 32 }, { AV_PIX_FMT_RGB48BE, MKTAG('b','4','8','r'), 48 }, }; static int mov_get_dnxhd_codec_tag(AVFormatContext *s, MOVTrack *track) { int tag = MKTAG('A','V','d','n'); if (track->par->profile != FF_PROFILE_UNKNOWN && track->par->profile != FF_PROFILE_DNXHD) tag = MKTAG('A','V','d','h'); return tag; } static int mov_get_rawvideo_codec_tag(AVFormatContext *s, MOVTrack *track) { int tag = track->par->codec_tag; int i; enum AVPixelFormat pix_fmt; for (i = 0; i < FF_ARRAY_ELEMS(mov_pix_fmt_tags); i++) { if (track->par->format == mov_pix_fmt_tags[i].pix_fmt) { tag = mov_pix_fmt_tags[i].tag; track->par->bits_per_coded_sample = mov_pix_fmt_tags[i].bps; if (track->par->codec_tag == mov_pix_fmt_tags[i].tag) break; } } pix_fmt = avpriv_pix_fmt_find(PIX_FMT_LIST_MOV, track->par->bits_per_coded_sample); if (tag == MKTAG('r','a','w',' ') && track->par->format != pix_fmt && track->par->format != AV_PIX_FMT_GRAY8 && track->par->format != AV_PIX_FMT_NONE) av_log(s, AV_LOG_ERROR, "%s rawvideo cannot be written to mov, output file will be unreadable\n", av_get_pix_fmt_name(track->par->format)); return tag; } static unsigned int mov_get_codec_tag(AVFormatContext *s, MOVTrack *track) { unsigned int tag = track->par->codec_tag; // "rtp " is used to distinguish internally created RTP-hint tracks // (with rtp_ctx) from other tracks. if (tag == MKTAG('r','t','p',' ')) tag = 0; if (!tag || (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL && (track->par->codec_id == AV_CODEC_ID_DVVIDEO || track->par->codec_id == AV_CODEC_ID_RAWVIDEO || track->par->codec_id == AV_CODEC_ID_H263 || track->par->codec_id == AV_CODEC_ID_H264 || track->par->codec_id == AV_CODEC_ID_DNXHD || track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO || av_get_bits_per_sample(track->par->codec_id)))) { // pcm audio if (track->par->codec_id == AV_CODEC_ID_DVVIDEO) tag = mov_get_dv_codec_tag(s, track); else if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO) tag = mov_get_rawvideo_codec_tag(s, track); else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO) tag = mov_get_mpeg2_xdcam_codec_tag(s, track); else if (track->par->codec_id == AV_CODEC_ID_H264) tag = mov_get_h264_codec_tag(s, track); else if (track->par->codec_id == AV_CODEC_ID_DNXHD) tag = mov_get_dnxhd_codec_tag(s, track); else if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) { tag = ff_codec_get_tag(ff_codec_movvideo_tags, track->par->codec_id); if (!tag) { // if no mac fcc found, try with Microsoft tags tag = ff_codec_get_tag(ff_codec_bmp_tags, track->par->codec_id); if (tag) av_log(s, AV_LOG_WARNING, "Using MS style video codec tag, " "the file may be unplayable!\n"); } } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) { tag = ff_codec_get_tag(ff_codec_movaudio_tags, track->par->codec_id); if (!tag) { // if no mac fcc found, try with Microsoft tags int ms_tag = ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id); if (ms_tag) { tag = MKTAG('m', 's', ((ms_tag >> 8) & 0xff), (ms_tag & 0xff)); av_log(s, AV_LOG_WARNING, "Using MS style audio codec tag, " "the file may be unplayable!\n"); } } } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) tag = ff_codec_get_tag(ff_codec_movsubtitle_tags, track->par->codec_id); } return tag; } static const AVCodecTag codec_cover_image_tags[] = { { AV_CODEC_ID_MJPEG, 0xD }, { AV_CODEC_ID_PNG, 0xE }, { AV_CODEC_ID_BMP, 0x1B }, { AV_CODEC_ID_NONE, 0 }, }; static unsigned int validate_codec_tag(const AVCodecTag *const *tags, unsigned int tag, int codec_id) { int i; /** * Check that tag + id is in the table */ for (i = 0; tags && tags[i]; i++) { const AVCodecTag *codec_tags = tags[i]; while (codec_tags->id != AV_CODEC_ID_NONE) { if (ff_toupper4(codec_tags->tag) == ff_toupper4(tag) && codec_tags->id == codec_id) return codec_tags->tag; codec_tags++; } } return 0; } static unsigned int mov_find_codec_tag(AVFormatContext *s, MOVTrack *track) { if (is_cover_image(track->st)) return ff_codec_get_tag(codec_cover_image_tags, track->par->codec_id); if (track->mode == MODE_IPOD) if (!av_match_ext(s->url, "m4a") && !av_match_ext(s->url, "m4v") && !av_match_ext(s->url, "m4b")) av_log(s, AV_LOG_WARNING, "Warning, extension is not .m4a nor .m4v " "Quicktime/Ipod might not play the file\n"); if (track->mode == MODE_MOV) { return mov_get_codec_tag(s, track); } else return validate_codec_tag(s->oformat->codec_tag, track->par->codec_tag, track->par->codec_id); } /** Write uuid atom. * Needed to make file play in iPods running newest firmware * goes after avcC atom in moov.trak.mdia.minf.stbl.stsd.avc1 */ static int mov_write_uuid_tag_ipod(AVIOContext *pb) { avio_wb32(pb, 28); ffio_wfourcc(pb, "uuid"); avio_wb32(pb, 0x6b6840f2); avio_wb32(pb, 0x5f244fc5); avio_wb32(pb, 0xba39a51b); avio_wb32(pb, 0xcf0323f3); avio_wb32(pb, 0x0); return 28; } static const uint16_t fiel_data[] = { 0x0000, 0x0100, 0x0201, 0x0206, 0x0209, 0x020e }; static int mov_write_fiel_tag(AVIOContext *pb, MOVTrack *track, int field_order) { unsigned mov_field_order = 0; if (field_order < FF_ARRAY_ELEMS(fiel_data)) mov_field_order = fiel_data[field_order]; else return 0; avio_wb32(pb, 10); ffio_wfourcc(pb, "fiel"); avio_wb16(pb, mov_field_order); return 10; } static int mov_write_subtitle_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { MOVMuxContext *mov = s->priv_data; int ret = AVERROR_BUG; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ avio_wl32(pb, track->tag); // store it byteswapped avio_wb32(pb, 0); /* Reserved */ avio_wb16(pb, 0); /* Reserved */ avio_wb16(pb, 1); /* Data-reference index */ if (track->par->codec_id == AV_CODEC_ID_DVD_SUBTITLE) mov_write_esds_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_TTML) { switch (track->par->codec_tag) { case MOV_ISMV_TTML_TAG: // ISMV dfxp requires no extradata. break; case MOV_MP4_TTML_TAG: // As specified in 14496-30, XMLSubtitleSampleEntry // Namespace avio_put_str(pb, "http://www.w3.org/ns/ttml"); // Empty schema_location avio_w8(pb, 0); // Empty auxiliary_mime_types avio_w8(pb, 0); break; default: av_log(NULL, AV_LOG_ERROR, "Unknown codec tag '%s' utilized for TTML stream with " "index %d (track id %d)!\n", av_fourcc2str(track->par->codec_tag), track->st->index, track->track_id); return AVERROR(EINVAL); } } else if (track->par->extradata_size) avio_write(pb, track->par->extradata, track->par->extradata_size); if (mov->write_btrt && ((ret = mov_write_btrt_tag(pb, track)) < 0)) return ret; return update_size(pb, pos); } static int mov_write_st3d_tag(AVFormatContext *s, AVIOContext *pb, AVStereo3D *stereo_3d) { int8_t stereo_mode; if (stereo_3d->flags != 0) { av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d flags %x. st3d not written.\n", stereo_3d->flags); return 0; } switch (stereo_3d->type) { case AV_STEREO3D_2D: stereo_mode = 0; break; case AV_STEREO3D_TOPBOTTOM: stereo_mode = 1; break; case AV_STEREO3D_SIDEBYSIDE: stereo_mode = 2; break; default: av_log(s, AV_LOG_WARNING, "Unsupported stereo_3d type %s. st3d not written.\n", av_stereo3d_type_name(stereo_3d->type)); return 0; } avio_wb32(pb, 13); /* size */ ffio_wfourcc(pb, "st3d"); avio_wb32(pb, 0); /* version = 0 & flags = 0 */ avio_w8(pb, stereo_mode); return 13; } static int mov_write_sv3d_tag(AVFormatContext *s, AVIOContext *pb, AVSphericalMapping *spherical_mapping) { int64_t sv3d_pos, svhd_pos, proj_pos; const char* metadata_source = s->flags & AVFMT_FLAG_BITEXACT ? "Lavf" : LIBAVFORMAT_IDENT; if (spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR && spherical_mapping->projection != AV_SPHERICAL_EQUIRECTANGULAR_TILE && spherical_mapping->projection != AV_SPHERICAL_CUBEMAP) { av_log(s, AV_LOG_WARNING, "Unsupported projection %d. sv3d not written.\n", spherical_mapping->projection); return 0; } sv3d_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "sv3d"); svhd_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "svhd"); avio_wb32(pb, 0); /* version = 0 & flags = 0 */ avio_put_str(pb, metadata_source); update_size(pb, svhd_pos); proj_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "proj"); avio_wb32(pb, 24); /* size */ ffio_wfourcc(pb, "prhd"); avio_wb32(pb, 0); /* version = 0 & flags = 0 */ avio_wb32(pb, spherical_mapping->yaw); avio_wb32(pb, spherical_mapping->pitch); avio_wb32(pb, spherical_mapping->roll); switch (spherical_mapping->projection) { case AV_SPHERICAL_EQUIRECTANGULAR: case AV_SPHERICAL_EQUIRECTANGULAR_TILE: avio_wb32(pb, 28); /* size */ ffio_wfourcc(pb, "equi"); avio_wb32(pb, 0); /* version = 0 & flags = 0 */ avio_wb32(pb, spherical_mapping->bound_top); avio_wb32(pb, spherical_mapping->bound_bottom); avio_wb32(pb, spherical_mapping->bound_left); avio_wb32(pb, spherical_mapping->bound_right); break; case AV_SPHERICAL_CUBEMAP: avio_wb32(pb, 20); /* size */ ffio_wfourcc(pb, "cbmp"); avio_wb32(pb, 0); /* version = 0 & flags = 0 */ avio_wb32(pb, 0); /* layout */ avio_wb32(pb, spherical_mapping->padding); /* padding */ break; } update_size(pb, proj_pos); return update_size(pb, sv3d_pos); } static int mov_write_dvcc_dvvc_tag(AVFormatContext *s, AVIOContext *pb, AVDOVIDecoderConfigurationRecord *dovi) { uint8_t buf[ISOM_DVCC_DVVC_SIZE]; avio_wb32(pb, 32); /* size = 8 + 24 */ if (dovi->dv_profile > 10) ffio_wfourcc(pb, "dvwC"); else if (dovi->dv_profile > 7) ffio_wfourcc(pb, "dvvC"); else ffio_wfourcc(pb, "dvcC"); ff_isom_put_dvcc_dvvc(s, buf, dovi); avio_write(pb, buf, sizeof(buf)); return 32; /* 8 + 24 */ } static int mov_write_clap_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 40); ffio_wfourcc(pb, "clap"); avio_wb32(pb, track->par->width); /* apertureWidth_N */ avio_wb32(pb, 1); /* apertureWidth_D (= 1) */ avio_wb32(pb, track->height); /* apertureHeight_N */ avio_wb32(pb, 1); /* apertureHeight_D (= 1) */ avio_wb32(pb, 0); /* horizOff_N (= 0) */ avio_wb32(pb, 1); /* horizOff_D (= 1) */ avio_wb32(pb, 0); /* vertOff_N (= 0) */ avio_wb32(pb, 1); /* vertOff_D (= 1) */ return 40; } static int mov_write_pasp_tag(AVIOContext *pb, MOVTrack *track) { AVRational sar; av_reduce(&sar.num, &sar.den, track->par->sample_aspect_ratio.num, track->par->sample_aspect_ratio.den, INT_MAX); avio_wb32(pb, 16); ffio_wfourcc(pb, "pasp"); avio_wb32(pb, sar.num); avio_wb32(pb, sar.den); return 16; } static int mov_write_gama_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track, double gamma) { uint32_t gama = 0; if (gamma <= 0.0) { gamma = avpriv_get_gamma_from_trc(track->par->color_trc); } av_log(s, AV_LOG_DEBUG, "gamma value %g\n", gamma); if (gamma > 1e-6) { gama = (uint32_t)lrint((double)(1<<16) * gamma); av_log(s, AV_LOG_DEBUG, "writing gama value %"PRId32"\n", gama); av_assert0(track->mode == MODE_MOV); avio_wb32(pb, 12); ffio_wfourcc(pb, "gama"); avio_wb32(pb, gama); return 12; } else { av_log(s, AV_LOG_WARNING, "gamma value unknown, unable to write gama atom\n"); } return 0; } static int mov_write_colr_tag(AVIOContext *pb, MOVTrack *track, int prefer_icc) { int64_t pos = avio_tell(pb); // Ref (MOV): https://developer.apple.com/library/mac/technotes/tn2162/_index.html#//apple_ref/doc/uid/DTS40013070-CH1-TNTAG9 // Ref (MP4): ISO/IEC 14496-12:2012 const uint8_t *icc_profile; size_t icc_profile_size; if (prefer_icc) { icc_profile = av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, &icc_profile_size); if (icc_profile) { avio_wb32(pb, 12 + icc_profile_size); ffio_wfourcc(pb, "colr"); ffio_wfourcc(pb, "prof"); avio_write(pb, icc_profile, icc_profile_size); return 12 + icc_profile_size; } else { av_log(NULL, AV_LOG_INFO, "no ICC profile found, will write nclx/nclc colour info instead\n"); } } /* We should only ever be called for MOV, MP4 and AVIF. */ av_assert0(track->mode == MODE_MOV || track->mode == MODE_MP4 || track->mode == MODE_AVIF); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "colr"); if (track->mode == MODE_MP4 || track->mode == MODE_AVIF) ffio_wfourcc(pb, "nclx"); else ffio_wfourcc(pb, "nclc"); // Do not try to guess the color info if it is AVCOL_PRI_UNSPECIFIED. // e.g., Dolby Vision for Apple devices should be set to AVCOL_PRI_UNSPECIFIED. See // https://developer.apple.com/av-foundation/High-Dynamic-Range-Metadata-for-Apple-Devices.pdf avio_wb16(pb, track->par->color_primaries); avio_wb16(pb, track->par->color_trc); avio_wb16(pb, track->par->color_space); if (track->mode == MODE_MP4 || track->mode == MODE_AVIF) { int full_range = track->par->color_range == AVCOL_RANGE_JPEG; avio_w8(pb, full_range << 7); } return update_size(pb, pos); } static int mov_write_clli_tag(AVIOContext *pb, MOVTrack *track) { const uint8_t *side_data; const AVContentLightMetadata *content_light_metadata; side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_CONTENT_LIGHT_LEVEL, NULL); if (!side_data) { return 0; } content_light_metadata = (const AVContentLightMetadata*)side_data; avio_wb32(pb, 12); // size ffio_wfourcc(pb, "clli"); avio_wb16(pb, content_light_metadata->MaxCLL); avio_wb16(pb, content_light_metadata->MaxFALL); return 12; } static inline int64_t rescale_mdcv(AVRational q, int b) { return av_rescale(q.num, b, q.den); } static int mov_write_mdcv_tag(AVIOContext *pb, MOVTrack *track) { const int chroma_den = 50000; const int luma_den = 10000; const uint8_t *side_data; const AVMasteringDisplayMetadata *metadata; side_data = av_stream_get_side_data(track->st, AV_PKT_DATA_MASTERING_DISPLAY_METADATA, NULL); metadata = (const AVMasteringDisplayMetadata*)side_data; if (!metadata || !metadata->has_primaries || !metadata->has_luminance) { return 0; } avio_wb32(pb, 32); // size ffio_wfourcc(pb, "mdcv"); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][0], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[1][1], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][0], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[2][1], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][0], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->display_primaries[0][1], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->white_point[0], chroma_den)); avio_wb16(pb, rescale_mdcv(metadata->white_point[1], chroma_den)); avio_wb32(pb, rescale_mdcv(metadata->max_luminance, luma_den)); avio_wb32(pb, rescale_mdcv(metadata->min_luminance, luma_den)); return 32; } static void find_compressor(char * compressor_name, int len, MOVTrack *track) { AVDictionaryEntry *encoder; int xdcam_res = (track->par->width == 1280 && track->par->height == 720) || (track->par->width == 1440 && track->par->height == 1080) || (track->par->width == 1920 && track->par->height == 1080); if ((track->mode == MODE_AVIF || track->mode == MODE_MOV || track->mode == MODE_MP4) && (encoder = av_dict_get(track->st->metadata, "encoder", NULL, 0))) { av_strlcpy(compressor_name, encoder->value, 32); } else if (track->par->codec_id == AV_CODEC_ID_MPEG2VIDEO && xdcam_res) { int interlaced = track->par->field_order > AV_FIELD_PROGRESSIVE; AVStream *st = track->st; int rate = defined_frame_rate(NULL, st); av_strlcatf(compressor_name, len, "XDCAM"); if (track->par->format == AV_PIX_FMT_YUV422P) { av_strlcatf(compressor_name, len, " HD422"); } else if(track->par->width == 1440) { av_strlcatf(compressor_name, len, " HD"); } else av_strlcatf(compressor_name, len, " EX"); av_strlcatf(compressor_name, len, " %d%c", track->par->height, interlaced ? 'i' : 'p'); av_strlcatf(compressor_name, len, "%d", rate * (interlaced + 1)); } } static int mov_write_ccst_tag(AVIOContext *pb) { int64_t pos = avio_tell(pb); // Write sane defaults: // all_ref_pics_intra = 0 : all samples can use any type of reference. // intra_pred_used = 1 : intra prediction may or may not be used. // max_ref_per_pic = 15 : reserved value to indicate that any number of // reference images can be used. uint8_t ccstValue = (0 << 7) | /* all_ref_pics_intra */ (1 << 6) | /* intra_pred_used */ (15 << 2); /* max_ref_per_pic */ avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ccst"); avio_wb32(pb, 0); /* Version & flags */ avio_w8(pb, ccstValue); avio_wb24(pb, 0); /* reserved */ return update_size(pb, pos); } static int mov_write_aux_tag(AVIOContext *pb, const char *aux_type) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, aux_type); avio_wb32(pb, 0); /* Version & flags */ avio_write(pb, "urn:mpeg:mpegB:cicp:systems:auxiliary:alpha\0", 44); return update_size(pb, pos); } static int mov_write_video_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int ret = AVERROR_BUG; int64_t pos = avio_tell(pb); char compressor_name[32] = { 0 }; int avid = 0; int uncompressed_ycbcr = ((track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_UYVY422) || (track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->par->format == AV_PIX_FMT_YUYV422) || track->par->codec_id == AV_CODEC_ID_V308 || track->par->codec_id == AV_CODEC_ID_V408 || track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210); avio_wb32(pb, 0); /* size */ if (mov->encryption_scheme != MOV_ENC_NONE) { ffio_wfourcc(pb, "encv"); } else { avio_wl32(pb, track->tag); // store it byteswapped } avio_wb32(pb, 0); /* Reserved */ avio_wb16(pb, 0); /* Reserved */ avio_wb16(pb, 1); /* Data-reference index */ if (uncompressed_ycbcr) { avio_wb16(pb, 2); /* Codec stream version */ } else { avio_wb16(pb, 0); /* Codec stream version */ } avio_wb16(pb, 0); /* Codec stream revision (=0) */ if (track->mode == MODE_MOV) { ffio_wfourcc(pb, "FFMP"); /* Vendor */ if (track->par->codec_id == AV_CODEC_ID_RAWVIDEO || uncompressed_ycbcr) { avio_wb32(pb, 0); /* Temporal Quality */ avio_wb32(pb, 0x400); /* Spatial Quality = lossless*/ } else { avio_wb32(pb, 0x200); /* Temporal Quality = normal */ avio_wb32(pb, 0x200); /* Spatial Quality = normal */ } } else { ffio_fill(pb, 0, 3 * 4); /* Reserved */ } avio_wb16(pb, track->par->width); /* Video width */ avio_wb16(pb, track->height); /* Video height */ avio_wb32(pb, 0x00480000); /* Horizontal resolution 72dpi */ avio_wb32(pb, 0x00480000); /* Vertical resolution 72dpi */ avio_wb32(pb, 0); /* Data size (= 0) */ avio_wb16(pb, 1); /* Frame count (= 1) */ find_compressor(compressor_name, 32, track); avio_w8(pb, strlen(compressor_name)); avio_write(pb, compressor_name, 31); if (track->mode == MODE_MOV && (track->par->codec_id == AV_CODEC_ID_V410 || track->par->codec_id == AV_CODEC_ID_V210)) avio_wb16(pb, 0x18); else if (track->mode == MODE_MOV && track->par->bits_per_coded_sample) avio_wb16(pb, track->par->bits_per_coded_sample | (track->par->format == AV_PIX_FMT_GRAY8 ? 0x20 : 0)); else avio_wb16(pb, 0x18); /* Reserved */ if (track->mode == MODE_MOV && track->par->format == AV_PIX_FMT_PAL8) { int pal_size, i; avio_wb16(pb, 0); /* Color table ID */ avio_wb32(pb, 0); /* Color table seed */ avio_wb16(pb, 0x8000); /* Color table flags */ if (track->par->bits_per_coded_sample < 0 || track->par->bits_per_coded_sample > 8) return AVERROR(EINVAL); pal_size = 1 << track->par->bits_per_coded_sample; avio_wb16(pb, pal_size - 1); /* Color table size (zero-relative) */ for (i = 0; i < pal_size; i++) { uint32_t rgb = track->palette[i]; uint16_t r = (rgb >> 16) & 0xff; uint16_t g = (rgb >> 8) & 0xff; uint16_t b = rgb & 0xff; avio_wb16(pb, 0); avio_wb16(pb, (r << 8) | r); avio_wb16(pb, (g << 8) | g); avio_wb16(pb, (b << 8) | b); } } else avio_wb16(pb, 0xffff); /* Reserved */ if (track->tag == MKTAG('m','p','4','v')) mov_write_esds_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_H263) mov_write_d263_tag(pb); else if (track->par->codec_id == AV_CODEC_ID_AVUI || track->par->codec_id == AV_CODEC_ID_SVQ3) { mov_write_extradata_tag(pb, track); avio_wb32(pb, 0); } else if (track->par->codec_id == AV_CODEC_ID_DNXHD) { mov_write_avid_tag(pb, track); avid = 1; } else if (track->par->codec_id == AV_CODEC_ID_HEVC) mov_write_hvcc_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_H264 && !TAG_IS_AVCI(track->tag)) { mov_write_avcc_tag(pb, track); if (track->mode == MODE_IPOD) mov_write_uuid_tag_ipod(pb); } else if (track->par->codec_id == AV_CODEC_ID_VP9) { mov_write_vpcc_tag(mov->fc, pb, track); } else if (track->par->codec_id == AV_CODEC_ID_AV1) { mov_write_av1c_tag(pb, track); } else if (track->par->codec_id == AV_CODEC_ID_VC1 && track->vos_len > 0) mov_write_dvc1_tag(pb, track); else if (track->par->codec_id == AV_CODEC_ID_VP6F || track->par->codec_id == AV_CODEC_ID_VP6A) { /* Don't write any potential extradata here - the cropping * is signalled via the normal width/height fields. */ } else if (track->par->codec_id == AV_CODEC_ID_R10K) { if (track->par->codec_tag == MKTAG('R','1','0','k')) mov_write_dpxe_tag(pb, track); } else if (track->vos_len > 0) mov_write_glbl_tag(pb, track); if (track->par->codec_id != AV_CODEC_ID_H264 && track->par->codec_id != AV_CODEC_ID_MPEG4 && track->par->codec_id != AV_CODEC_ID_DNXHD) { int field_order = track->par->field_order; if (field_order != AV_FIELD_UNKNOWN) mov_write_fiel_tag(pb, track, field_order); } if (mov->flags & FF_MOV_FLAG_WRITE_GAMA) { if (track->mode == MODE_MOV) mov_write_gama_tag(s, pb, track, mov->gamma); else av_log(mov->fc, AV_LOG_WARNING, "Not writing 'gama' atom. Format is not MOV.\n"); } if (track->mode == MODE_MOV || track->mode == MODE_MP4 || track->mode == MODE_AVIF) { int has_color_info = track->par->color_primaries != AVCOL_PRI_UNSPECIFIED && track->par->color_trc != AVCOL_TRC_UNSPECIFIED && track->par->color_space != AVCOL_SPC_UNSPECIFIED; if (has_color_info || mov->flags & FF_MOV_FLAG_WRITE_COLR || av_stream_get_side_data(track->st, AV_PKT_DATA_ICC_PROFILE, NULL)) { int prefer_icc = mov->flags & FF_MOV_FLAG_PREFER_ICC || !has_color_info; mov_write_colr_tag(pb, track, prefer_icc); } else if (mov->flags & FF_MOV_FLAG_WRITE_COLR) { av_log(mov->fc, AV_LOG_WARNING, "Not writing 'colr' atom. Format is not MOV or MP4.\n"); } } if (track->mode == MODE_MOV || track->mode == MODE_MP4) { mov_write_clli_tag(pb, track); mov_write_mdcv_tag(pb, track); } if (track->mode == MODE_MP4 && mov->fc->strict_std_compliance <= FF_COMPLIANCE_UNOFFICIAL) { AVStereo3D* stereo_3d = (AVStereo3D*) av_stream_get_side_data(track->st, AV_PKT_DATA_STEREO3D, NULL); AVSphericalMapping* spherical_mapping = (AVSphericalMapping*)av_stream_get_side_data(track->st, AV_PKT_DATA_SPHERICAL, NULL); AVDOVIDecoderConfigurationRecord *dovi = (AVDOVIDecoderConfigurationRecord *) av_stream_get_side_data(track->st, AV_PKT_DATA_DOVI_CONF, NULL); if (stereo_3d) mov_write_st3d_tag(s, pb, stereo_3d); if (spherical_mapping) mov_write_sv3d_tag(mov->fc, pb, spherical_mapping); if (dovi) mov_write_dvcc_dvvc_tag(s, pb, dovi); } if (track->par->sample_aspect_ratio.den && track->par->sample_aspect_ratio.num) { mov_write_pasp_tag(pb, track); } if (uncompressed_ycbcr){ mov_write_clap_tag(pb, track); } if (mov->encryption_scheme != MOV_ENC_NONE) { ff_mov_cenc_write_sinf_tag(track, pb, mov->encryption_kid); } if (mov->write_btrt && ((ret = mov_write_btrt_tag(pb, track)) < 0)) return ret; /* extra padding for avid stsd */ /* https://developer.apple.com/library/mac/documentation/QuickTime/QTFF/QTFFChap2/qtff2.html#//apple_ref/doc/uid/TP40000939-CH204-61112 */ if (avid) avio_wb32(pb, 0); if (track->mode == MODE_AVIF) { mov_write_ccst_tag(pb); if (s->nb_streams > 0 && track == &mov->tracks[1]) mov_write_aux_tag(pb, "auxi"); } return update_size(pb, pos); } static int mov_write_rtp_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "rtp "); avio_wb32(pb, 0); /* Reserved */ avio_wb16(pb, 0); /* Reserved */ avio_wb16(pb, 1); /* Data-reference index */ avio_wb16(pb, 1); /* Hint track version */ avio_wb16(pb, 1); /* Highest compatible version */ avio_wb32(pb, track->max_packet_size); /* Max packet size */ avio_wb32(pb, 12); /* size */ ffio_wfourcc(pb, "tims"); avio_wb32(pb, track->timescale); return update_size(pb, pos); } static int mov_write_source_reference_tag(AVIOContext *pb, MOVTrack *track, const char *reel_name) { uint64_t str_size =strlen(reel_name); int64_t pos = avio_tell(pb); if (str_size >= UINT16_MAX){ av_log(NULL, AV_LOG_ERROR, "reel_name length %"PRIu64" is too large\n", str_size); avio_wb16(pb, 0); return AVERROR(EINVAL); } avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "name"); /* Data format */ avio_wb16(pb, str_size); /* string size */ avio_wb16(pb, track->language); /* langcode */ avio_write(pb, reel_name, str_size); /* reel name */ return update_size(pb,pos); } static int mov_write_tmcd_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); #if 1 int frame_duration; int nb_frames; AVDictionaryEntry *t = NULL; if (!track->st->avg_frame_rate.num || !track->st->avg_frame_rate.den) { av_log(NULL, AV_LOG_ERROR, "avg_frame_rate not set for tmcd track.\n"); return AVERROR(EINVAL); } else { frame_duration = av_rescale(track->timescale, track->st->avg_frame_rate.den, track->st->avg_frame_rate.num); nb_frames = ROUNDED_DIV(track->st->avg_frame_rate.num, track->st->avg_frame_rate.den); } if (nb_frames > 255) { av_log(NULL, AV_LOG_ERROR, "fps %d is too large\n", nb_frames); return AVERROR(EINVAL); } avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tmcd"); /* Data format */ avio_wb32(pb, 0); /* Reserved */ avio_wb32(pb, 1); /* Data reference index */ avio_wb32(pb, 0); /* Flags */ avio_wb32(pb, track->timecode_flags); /* Flags (timecode) */ avio_wb32(pb, track->timescale); /* Timescale */ avio_wb32(pb, frame_duration); /* Frame duration */ avio_w8(pb, nb_frames); /* Number of frames */ avio_w8(pb, 0); /* Reserved */ t = av_dict_get(track->st->metadata, "reel_name", NULL, 0); if (t && utf8len(t->value) && track->mode != MODE_MP4) mov_write_source_reference_tag(pb, track, t->value); else avio_wb16(pb, 0); /* zero size */ #else avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tmcd"); /* Data format */ avio_wb32(pb, 0); /* Reserved */ avio_wb32(pb, 1); /* Data reference index */ if (track->par->extradata_size) avio_write(pb, track->par->extradata, track->par->extradata_size); #endif return update_size(pb, pos); } static int mov_write_gpmd_tag(AVIOContext *pb, const MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "gpmd"); avio_wb32(pb, 0); /* Reserved */ avio_wb16(pb, 0); /* Reserved */ avio_wb16(pb, 1); /* Data-reference index */ avio_wb32(pb, 0); /* Reserved */ return update_size(pb, pos); } static int mov_write_stsd_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int ret = 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "stsd"); avio_wb32(pb, 0); /* version & flags */ avio_wb32(pb, 1); /* entry count */ if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) ret = mov_write_video_tag(s, pb, mov, track); else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) ret = mov_write_audio_tag(s, pb, mov, track); else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) ret = mov_write_subtitle_tag(s, pb, track); else if (track->par->codec_tag == MKTAG('r','t','p',' ')) ret = mov_write_rtp_tag(pb, track); else if (track->par->codec_tag == MKTAG('t','m','c','d')) ret = mov_write_tmcd_tag(pb, track); else if (track->par->codec_tag == MKTAG('g','p','m','d')) ret = mov_write_gpmd_tag(pb, track); if (ret < 0) return ret; return update_size(pb, pos); } static int mov_write_ctts_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { MOVMuxContext *mov = s->priv_data; MOVCtts *ctts_entries; uint32_t entries = 0; uint32_t atom_size; int i; ctts_entries = av_malloc_array((track->entry + 1), sizeof(*ctts_entries)); /* worst case */ if (!ctts_entries) return AVERROR(ENOMEM); ctts_entries[0].count = 1; ctts_entries[0].duration = track->cluster[0].cts; for (i = 1; i < track->entry; i++) { if (track->cluster[i].cts == ctts_entries[entries].duration) { ctts_entries[entries].count++; /* compress */ } else { entries++; ctts_entries[entries].duration = track->cluster[i].cts; ctts_entries[entries].count = 1; } } entries++; /* last one */ atom_size = 16 + (entries * 8); avio_wb32(pb, atom_size); /* size */ ffio_wfourcc(pb, "ctts"); if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) avio_w8(pb, 1); /* version */ else avio_w8(pb, 0); /* version */ avio_wb24(pb, 0); /* flags */ avio_wb32(pb, entries); /* entry count */ for (i = 0; i < entries; i++) { avio_wb32(pb, ctts_entries[i].count); avio_wb32(pb, ctts_entries[i].duration); } av_free(ctts_entries); return atom_size; } /* Time to sample atom */ static int mov_write_stts_tag(AVIOContext *pb, MOVTrack *track) { MOVStts *stts_entries = NULL; uint32_t entries = -1; uint32_t atom_size; int i; if (track->par->codec_type == AVMEDIA_TYPE_AUDIO && !track->audio_vbr) { stts_entries = av_malloc(sizeof(*stts_entries)); /* one entry */ if (!stts_entries) return AVERROR(ENOMEM); stts_entries[0].count = track->sample_count; stts_entries[0].duration = 1; entries = 1; } else { if (track->entry) { stts_entries = av_malloc_array(track->entry, sizeof(*stts_entries)); /* worst case */ if (!stts_entries) return AVERROR(ENOMEM); } for (i = 0; i < track->entry; i++) { int duration = get_cluster_duration(track, i); if (i && duration == stts_entries[entries].duration) { stts_entries[entries].count++; /* compress */ } else { entries++; stts_entries[entries].duration = duration; stts_entries[entries].count = 1; } } entries++; /* last one */ } atom_size = 16 + (entries * 8); avio_wb32(pb, atom_size); /* size */ ffio_wfourcc(pb, "stts"); avio_wb32(pb, 0); /* version & flags */ avio_wb32(pb, entries); /* entry count */ for (i = 0; i < entries; i++) { avio_wb32(pb, stts_entries[i].count); avio_wb32(pb, stts_entries[i].duration); } av_free(stts_entries); return atom_size; } static int mov_write_dref_tag(AVIOContext *pb) { avio_wb32(pb, 28); /* size */ ffio_wfourcc(pb, "dref"); avio_wb32(pb, 0); /* version & flags */ avio_wb32(pb, 1); /* entry count */ avio_wb32(pb, 0xc); /* size */ //FIXME add the alis and rsrc atom ffio_wfourcc(pb, "url "); avio_wb32(pb, 1); /* version & flags */ return 28; } static int mov_preroll_write_stbl_atoms(AVIOContext *pb, MOVTrack *track) { struct sgpd_entry { int count; int16_t roll_distance; int group_description_index; }; struct sgpd_entry *sgpd_entries = NULL; int entries = -1; int group = 0; int i, j; const int OPUS_SEEK_PREROLL_MS = 80; int roll_samples = av_rescale_q(OPUS_SEEK_PREROLL_MS, (AVRational){1, 1000}, (AVRational){1, 48000}); if (!track->entry) return 0; sgpd_entries = av_malloc_array(track->entry, sizeof(*sgpd_entries)); if (!sgpd_entries) return AVERROR(ENOMEM); av_assert0(track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC); if (track->par->codec_id == AV_CODEC_ID_OPUS) { for (i = 0; i < track->entry; i++) { int roll_samples_remaining = roll_samples; int distance = 0; for (j = i - 1; j >= 0; j--) { roll_samples_remaining -= get_cluster_duration(track, j); distance++; if (roll_samples_remaining <= 0) break; } /* We don't have enough preceeding samples to compute a valid roll_distance here, so this sample can't be independently decoded. */ if (roll_samples_remaining > 0) distance = 0; /* Verify distance is a maximum of 32 (2.5ms) packets. */ if (distance > 32) return AVERROR_INVALIDDATA; if (i && distance == sgpd_entries[entries].roll_distance) { sgpd_entries[entries].count++; } else { entries++; sgpd_entries[entries].count = 1; sgpd_entries[entries].roll_distance = distance; sgpd_entries[entries].group_description_index = distance ? ++group : 0; } } } else { entries++; sgpd_entries[entries].count = track->sample_count; sgpd_entries[entries].roll_distance = 1; sgpd_entries[entries].group_description_index = ++group; } entries++; if (!group) { av_free(sgpd_entries); return 0; } /* Write sgpd tag */ avio_wb32(pb, 24 + (group * 2)); /* size */ ffio_wfourcc(pb, "sgpd"); avio_wb32(pb, 1 << 24); /* fullbox */ ffio_wfourcc(pb, "roll"); avio_wb32(pb, 2); /* default_length */ avio_wb32(pb, group); /* entry_count */ for (i = 0; i < entries; i++) { if (sgpd_entries[i].group_description_index) { avio_wb16(pb, -sgpd_entries[i].roll_distance); /* roll_distance */ } } /* Write sbgp tag */ avio_wb32(pb, 20 + (entries * 8)); /* size */ ffio_wfourcc(pb, "sbgp"); avio_wb32(pb, 0); /* fullbox */ ffio_wfourcc(pb, "roll"); avio_wb32(pb, entries); /* entry_count */ for (i = 0; i < entries; i++) { avio_wb32(pb, sgpd_entries[i].count); /* sample_count */ avio_wb32(pb, sgpd_entries[i].group_description_index); /* group_description_index */ } av_free(sgpd_entries); return 0; } static int mov_write_stbl_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int ret = 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "stbl"); if ((ret = mov_write_stsd_tag(s, pb, mov, track)) < 0) return ret; mov_write_stts_tag(pb, track); if ((track->par->codec_type == AVMEDIA_TYPE_VIDEO || track->par->codec_id == AV_CODEC_ID_TRUEHD || track->par->codec_id == AV_CODEC_ID_MPEGH_3D_AUDIO || track->par->codec_tag == MKTAG('r','t','p',' ')) && track->has_keyframes && track->has_keyframes < track->entry) mov_write_stss_tag(pb, track, MOV_SYNC_SAMPLE); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->has_disposable) mov_write_sdtp_tag(pb, track); if (track->mode == MODE_MOV && track->flags & MOV_TRACK_STPS) mov_write_stss_tag(pb, track, MOV_PARTIAL_SYNC_SAMPLE); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && track->flags & MOV_TRACK_CTTS && track->entry) { if ((ret = mov_write_ctts_tag(s, pb, track)) < 0) return ret; } mov_write_stsc_tag(pb, track); mov_write_stsz_tag(pb, track); mov_write_stco_tag(pb, track); if (track->cenc.aes_ctr) { ff_mov_cenc_write_stbl_atoms(&track->cenc, pb); } if (track->par->codec_id == AV_CODEC_ID_OPUS || track->par->codec_id == AV_CODEC_ID_AAC) { mov_preroll_write_stbl_atoms(pb, track); } return update_size(pb, pos); } static int mov_write_dinf_tag(AVIOContext *pb) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "dinf"); mov_write_dref_tag(pb); return update_size(pb, pos); } static int mov_write_nmhd_tag(AVIOContext *pb) { avio_wb32(pb, 12); ffio_wfourcc(pb, "nmhd"); avio_wb32(pb, 0); return 12; } static int mov_write_sthd_tag(AVIOContext *pb) { avio_wb32(pb, 12); ffio_wfourcc(pb, "sthd"); avio_wb32(pb, 0); return 12; } static int mov_write_tcmi_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); const char *font = "Lucida Grande"; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tcmi"); /* timecode media information atom */ avio_wb32(pb, 0); /* version & flags */ avio_wb16(pb, 0); /* text font */ avio_wb16(pb, 0); /* text face */ avio_wb16(pb, 12); /* text size */ avio_wb16(pb, 0); /* (unknown, not in the QT specs...) */ avio_wb16(pb, 0x0000); /* text color (red) */ avio_wb16(pb, 0x0000); /* text color (green) */ avio_wb16(pb, 0x0000); /* text color (blue) */ avio_wb16(pb, 0xffff); /* background color (red) */ avio_wb16(pb, 0xffff); /* background color (green) */ avio_wb16(pb, 0xffff); /* background color (blue) */ avio_w8(pb, strlen(font)); /* font len (part of the pascal string) */ avio_write(pb, font, strlen(font)); /* font name */ return update_size(pb, pos); } static int mov_write_gmhd_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "gmhd"); avio_wb32(pb, 0x18); /* gmin size */ ffio_wfourcc(pb, "gmin");/* generic media info */ avio_wb32(pb, 0); /* version & flags */ avio_wb16(pb, 0x40); /* graphics mode = */ avio_wb16(pb, 0x8000); /* opColor (r?) */ avio_wb16(pb, 0x8000); /* opColor (g?) */ avio_wb16(pb, 0x8000); /* opColor (b?) */ avio_wb16(pb, 0); /* balance */ avio_wb16(pb, 0); /* reserved */ /* * This special text atom is required for * Apple Quicktime chapters. The contents * don't appear to be documented, so the * bytes are copied verbatim. */ if (track->tag != MKTAG('c','6','0','8')) { avio_wb32(pb, 0x2C); /* size */ ffio_wfourcc(pb, "text"); avio_wb16(pb, 0x01); avio_wb32(pb, 0x00); avio_wb32(pb, 0x00); avio_wb32(pb, 0x00); avio_wb32(pb, 0x01); avio_wb32(pb, 0x00); avio_wb32(pb, 0x00); avio_wb32(pb, 0x00); avio_wb32(pb, 0x00004000); avio_wb16(pb, 0x0000); } if (track->par->codec_tag == MKTAG('t','m','c','d')) { int64_t tmcd_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tmcd"); mov_write_tcmi_tag(pb, track); update_size(pb, tmcd_pos); } else if (track->par->codec_tag == MKTAG('g','p','m','d')) { int64_t gpmd_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "gpmd"); avio_wb32(pb, 0); /* version */ update_size(pb, gpmd_pos); } return update_size(pb, pos); } static int mov_write_smhd_tag(AVIOContext *pb) { avio_wb32(pb, 16); /* size */ ffio_wfourcc(pb, "smhd"); avio_wb32(pb, 0); /* version & flags */ avio_wb16(pb, 0); /* reserved (balance, normally = 0) */ avio_wb16(pb, 0); /* reserved */ return 16; } static int mov_write_vmhd_tag(AVIOContext *pb) { avio_wb32(pb, 0x14); /* size (always 0x14) */ ffio_wfourcc(pb, "vmhd"); avio_wb32(pb, 0x01); /* version & flags */ avio_wb64(pb, 0); /* reserved (graphics mode = copy) */ return 0x14; } static int is_clcp_track(MOVTrack *track) { return track->tag == MKTAG('c','7','0','8') || track->tag == MKTAG('c','6','0','8'); } static int mov_write_hdlr_tag(AVFormatContext *s, AVIOContext *pb, MOVTrack *track) { MOVMuxContext *mov = s->priv_data; const char *hdlr, *descr = NULL, *hdlr_type = NULL; int64_t pos = avio_tell(pb); size_t descr_len; hdlr = "dhlr"; hdlr_type = "url "; descr = "DataHandler"; if (track) { hdlr = (track->mode == MODE_MOV) ? "mhlr" : "\0\0\0\0"; if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) { if (track->mode == MODE_AVIF) { hdlr_type = (track == &mov->tracks[0]) ? "pict" : "auxv"; descr = "PictureHandler"; } else { hdlr_type = "vide"; descr = "VideoHandler"; } } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) { hdlr_type = "soun"; descr = "SoundHandler"; } else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) { if (is_clcp_track(track)) { hdlr_type = "clcp"; descr = "ClosedCaptionHandler"; } else { if (track->tag == MKTAG('t','x','3','g')) { hdlr_type = "sbtl"; } else if (track->tag == MKTAG('m','p','4','s')) { hdlr_type = "subp"; } else if (track->tag == MOV_MP4_TTML_TAG) { hdlr_type = "subt"; } else { hdlr_type = "text"; } descr = "SubtitleHandler"; } } else if (track->par->codec_tag == MKTAG('r','t','p',' ')) { hdlr_type = "hint"; descr = "HintHandler"; } else if (track->par->codec_tag == MKTAG('t','m','c','d')) { hdlr_type = "tmcd"; descr = "TimeCodeHandler"; } else if (track->par->codec_tag == MKTAG('g','p','m','d')) { hdlr_type = "meta"; descr = "GoPro MET"; // GoPro Metadata } else { av_log(s, AV_LOG_WARNING, "Unknown hdlr_type for %s, writing dummy values\n", av_fourcc2str(track->par->codec_tag)); } if (track->st) { // hdlr.name is used by some players to identify the content title // of the track. So if an alternate handler description is // specified, use it. AVDictionaryEntry *t; t = av_dict_get(track->st->metadata, "handler_name", NULL, 0); if (t && utf8len(t->value)) descr = t->value; } } if (mov->empty_hdlr_name) /* expressly allowed by QTFF and not prohibited in ISO 14496-12 8.4.3.3 */ descr = ""; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "hdlr"); avio_wb32(pb, 0); /* Version & flags */ avio_write(pb, hdlr, 4); /* handler */ ffio_wfourcc(pb, hdlr_type); /* handler type */ avio_wb32(pb, 0); /* reserved */ avio_wb32(pb, 0); /* reserved */ avio_wb32(pb, 0); /* reserved */ descr_len = strlen(descr); if (!track || track->mode == MODE_MOV) avio_w8(pb, descr_len); /* pascal string */ avio_write(pb, descr, descr_len); /* handler description */ if (track && track->mode != MODE_MOV) avio_w8(pb, 0); /* c string */ return update_size(pb, pos); } static int mov_write_pitm_tag(AVIOContext *pb, int item_id) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "pitm"); avio_wb32(pb, 0); /* Version & flags */ avio_wb16(pb, item_id); /* item_id */ return update_size(pb, pos); } static int mov_write_iloc_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "iloc"); avio_wb32(pb, 0); /* Version & flags */ avio_w8(pb, (4 << 4) + 4); /* offset_size(4) and length_size(4) */ avio_w8(pb, 0); /* base_offset_size(4) and reserved(4) */ avio_wb16(pb, s->nb_streams); /* item_count */ for (int i = 0; i < s->nb_streams; i++) { avio_wb16(pb, i + 1); /* item_id */ avio_wb16(pb, 0); /* data_reference_index */ avio_wb16(pb, 1); /* extent_count */ mov->avif_extent_pos[i] = avio_tell(pb); avio_wb32(pb, 0); /* extent_offset (written later) */ // For animated AVIF, we simply write the first packet's size. avio_wb32(pb, mov->avif_extent_length[i]); /* extent_length */ } return update_size(pb, pos); } static int mov_write_iinf_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t iinf_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "iinf"); avio_wb32(pb, 0); /* Version & flags */ avio_wb16(pb, s->nb_streams); /* entry_count */ for (int i = 0; i < s->nb_streams; i++) { int64_t infe_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "infe"); avio_w8(pb, 0x2); /* Version */ avio_wb24(pb, 0); /* flags */ avio_wb16(pb, i + 1); /* item_id */ avio_wb16(pb, 0); /* item_protection_index */ avio_write(pb, "av01", 4); /* item_type */ avio_write(pb, !i ? "Color\0" : "Alpha\0", 6); /* item_name */ update_size(pb, infe_pos); } return update_size(pb, iinf_pos); } static int mov_write_iref_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t auxl_pos; int64_t iref_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "iref"); avio_wb32(pb, 0); /* Version & flags */ auxl_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "auxl"); avio_wb16(pb, 2); /* from_item_ID */ avio_wb16(pb, 1); /* reference_count */ avio_wb16(pb, 1); /* to_item_ID */ update_size(pb, auxl_pos); return update_size(pb, iref_pos); } static int mov_write_ispe_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s, int stream_index) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ispe"); avio_wb32(pb, 0); /* Version & flags */ avio_wb32(pb, s->streams[stream_index]->codecpar->width); /* image_width */ avio_wb32(pb, s->streams[stream_index]->codecpar->height); /* image_height */ return update_size(pb, pos); } static int mov_write_pixi_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s, int stream_index) { int64_t pos = avio_tell(pb); const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(s->streams[stream_index]->codecpar->format); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "pixi"); avio_wb32(pb, 0); /* Version & flags */ avio_w8(pb, pixdesc->nb_components); /* num_channels */ for (int i = 0; i < pixdesc->nb_components; ++i) { avio_w8(pb, pixdesc->comp[i].depth); /* bits_per_channel */ } return update_size(pb, pos); } static int mov_write_ipco_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ipco"); for (int i = 0; i < s->nb_streams; i++) { mov_write_ispe_tag(pb, mov, s, i); mov_write_pixi_tag(pb, mov, s, i); mov_write_av1c_tag(pb, &mov->tracks[i]); if (!i) mov_write_colr_tag(pb, &mov->tracks[0], 0); else mov_write_aux_tag(pb, "auxC"); } return update_size(pb, pos); } static int mov_write_ipma_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ipma"); avio_wb32(pb, 0); /* Version & flags */ avio_wb32(pb, s->nb_streams); /* entry_count */ for (int i = 0, index = 1; i < s->nb_streams; i++) { avio_wb16(pb, i + 1); /* item_ID */ avio_w8(pb, 4); /* association_count */ // ispe association. avio_w8(pb, index++); /* essential and property_index */ // pixi association. avio_w8(pb, index++); /* essential and property_index */ // av1C association. avio_w8(pb, 0x80 | index++); /* essential and property_index */ // colr/auxC association. avio_w8(pb, index++); /* essential and property_index */ } return update_size(pb, pos); } static int mov_write_iprp_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "iprp"); mov_write_ipco_tag(pb, mov, s); mov_write_ipma_tag(pb, mov, s); return update_size(pb, pos); } static int mov_write_hmhd_tag(AVIOContext *pb) { /* This atom must be present, but leaving the values at zero * seems harmless. */ avio_wb32(pb, 28); /* size */ ffio_wfourcc(pb, "hmhd"); avio_wb32(pb, 0); /* version, flags */ avio_wb16(pb, 0); /* maxPDUsize */ avio_wb16(pb, 0); /* avgPDUsize */ avio_wb32(pb, 0); /* maxbitrate */ avio_wb32(pb, 0); /* avgbitrate */ avio_wb32(pb, 0); /* reserved */ return 28; } static int mov_write_minf_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int ret; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "minf"); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) mov_write_vmhd_tag(pb); else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) mov_write_smhd_tag(pb); else if (track->par->codec_type == AVMEDIA_TYPE_SUBTITLE) { if (track->tag == MKTAG('t','e','x','t') || is_clcp_track(track)) { mov_write_gmhd_tag(pb, track); } else if (track->tag == MOV_MP4_TTML_TAG) { mov_write_sthd_tag(pb); } else { mov_write_nmhd_tag(pb); } } else if (track->tag == MKTAG('r','t','p',' ')) { mov_write_hmhd_tag(pb); } else if (track->tag == MKTAG('t','m','c','d')) { if (track->mode != MODE_MOV) mov_write_nmhd_tag(pb); else mov_write_gmhd_tag(pb, track); } else if (track->tag == MKTAG('g','p','m','d')) { mov_write_gmhd_tag(pb, track); } if (track->mode == MODE_MOV) /* ISO 14496-12 8.4.3.1 specifies hdlr only within mdia or meta boxes */ mov_write_hdlr_tag(s, pb, NULL); mov_write_dinf_tag(pb); if ((ret = mov_write_stbl_tag(s, pb, mov, track)) < 0) return ret; return update_size(pb, pos); } static void get_pts_range(MOVMuxContext *mov, MOVTrack *track, int64_t *start, int64_t *end) { if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) { // tmcd tracks gets track_duration set in mov_write_moov_tag from // another track's duration, while the end_pts may be left at zero. // Calculate the pts duration for that track instead. get_pts_range(mov, &mov->tracks[track->src_track], start, end); *start = av_rescale(*start, track->timescale, mov->tracks[track->src_track].timescale); *end = av_rescale(*end, track->timescale, mov->tracks[track->src_track].timescale); return; } if (track->end_pts != AV_NOPTS_VALUE && track->start_dts != AV_NOPTS_VALUE && track->start_cts != AV_NOPTS_VALUE) { *start = track->start_dts + track->start_cts; *end = track->end_pts; return; } *start = 0; *end = track->track_duration; } static int64_t calc_samples_pts_duration(MOVMuxContext *mov, MOVTrack *track) { int64_t start, end; get_pts_range(mov, track, &start, &end); return end - start; } // Calculate the actual duration of the track, after edits. // If it starts with a pts < 0, that is removed by the edit list. // If it starts with a pts > 0, the edit list adds a delay before that. // Thus, with edit lists enabled, the post-edit output of the file is // starting with pts=0. static int64_t calc_pts_duration(MOVMuxContext *mov, MOVTrack *track) { int64_t start, end; get_pts_range(mov, track, &start, &end); if (mov->use_editlist != 0) start = 0; return end - start; } static int mov_write_mdhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t duration = calc_samples_pts_duration(mov, track); int version = duration < INT32_MAX ? 0 : 1; if (track->mode == MODE_ISM) version = 1; (version == 1) ? avio_wb32(pb, 44) : avio_wb32(pb, 32); /* size */ ffio_wfourcc(pb, "mdhd"); avio_w8(pb, version); avio_wb24(pb, 0); /* flags */ if (version == 1) { avio_wb64(pb, track->time); avio_wb64(pb, track->time); } else { avio_wb32(pb, track->time); /* creation time */ avio_wb32(pb, track->time); /* modification time */ } avio_wb32(pb, track->timescale); /* time scale (sample rate for audio) */ if (!track->entry && mov->mode == MODE_ISM) (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff); else if (!track->entry) (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0); else (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); /* duration */ avio_wb16(pb, track->language); /* language */ avio_wb16(pb, 0); /* reserved (quality) */ if (version != 0 && track->mode == MODE_MOV) { av_log(NULL, AV_LOG_ERROR, "FATAL error, file duration too long for timebase, this file will not be\n" "playable with QuickTime. Choose a different timebase with " "-video_track_timescale or a different container format\n"); } return 32; } static int mov_write_mdia_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int ret; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "mdia"); mov_write_mdhd_tag(pb, mov, track); mov_write_hdlr_tag(s, pb, track); if ((ret = mov_write_minf_tag(s, pb, mov, track)) < 0) return ret; return update_size(pb, pos); } /* transformation matrix |a b u| |c d v| |tx ty w| */ static void write_matrix(AVIOContext *pb, int16_t a, int16_t b, int16_t c, int16_t d, int16_t tx, int16_t ty) { avio_wb32(pb, a << 16); /* 16.16 format */ avio_wb32(pb, b << 16); /* 16.16 format */ avio_wb32(pb, 0); /* u in 2.30 format */ avio_wb32(pb, c << 16); /* 16.16 format */ avio_wb32(pb, d << 16); /* 16.16 format */ avio_wb32(pb, 0); /* v in 2.30 format */ avio_wb32(pb, tx << 16); /* 16.16 format */ avio_wb32(pb, ty << 16); /* 16.16 format */ avio_wb32(pb, 1 << 30); /* w in 2.30 format */ } static int mov_write_tkhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, AVStream *st) { int64_t duration = av_rescale_rnd(calc_pts_duration(mov, track), mov->movie_timescale, track->timescale, AV_ROUND_UP); int version = duration < INT32_MAX ? 0 : 1; int flags = MOV_TKHD_FLAG_IN_MOVIE; int group = 0; uint32_t *display_matrix = NULL; size_t display_matrix_size; int i; if (st) { if (mov->per_stream_grouping) group = st->index; else group = st->codecpar->codec_type; display_matrix = (uint32_t*)av_stream_get_side_data(st, AV_PKT_DATA_DISPLAYMATRIX, &display_matrix_size); if (display_matrix && display_matrix_size < 9 * sizeof(*display_matrix)) display_matrix = NULL; } if (track->flags & MOV_TRACK_ENABLED) flags |= MOV_TKHD_FLAG_ENABLED; if (track->mode == MODE_ISM) version = 1; (version == 1) ? avio_wb32(pb, 104) : avio_wb32(pb, 92); /* size */ ffio_wfourcc(pb, "tkhd"); avio_w8(pb, version); avio_wb24(pb, flags); if (version == 1) { avio_wb64(pb, track->time); avio_wb64(pb, track->time); } else { avio_wb32(pb, track->time); /* creation time */ avio_wb32(pb, track->time); /* modification time */ } avio_wb32(pb, track->track_id); /* track-id */ avio_wb32(pb, 0); /* reserved */ if (!track->entry && mov->mode == MODE_ISM) (version == 1) ? avio_wb64(pb, UINT64_C(0xffffffffffffffff)) : avio_wb32(pb, 0xffffffff); else if (!track->entry) (version == 1) ? avio_wb64(pb, 0) : avio_wb32(pb, 0); else (version == 1) ? avio_wb64(pb, duration) : avio_wb32(pb, duration); avio_wb32(pb, 0); /* reserved */ avio_wb32(pb, 0); /* reserved */ avio_wb16(pb, 0); /* layer */ avio_wb16(pb, group); /* alternate group) */ /* Volume, only for audio */ if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) avio_wb16(pb, 0x0100); else avio_wb16(pb, 0); avio_wb16(pb, 0); /* reserved */ /* Matrix structure */ if (display_matrix) { for (i = 0; i < 9; i++) avio_wb32(pb, display_matrix[i]); } else { write_matrix(pb, 1, 0, 0, 1, 0, 0); } /* Track width and height, for visual only */ if (st && (track->par->codec_type == AVMEDIA_TYPE_VIDEO || track->par->codec_type == AVMEDIA_TYPE_SUBTITLE)) { int64_t track_width_1616; if (track->mode == MODE_MOV || track->mode == MODE_AVIF) { track_width_1616 = track->par->width * 0x10000ULL; } else { track_width_1616 = av_rescale(st->sample_aspect_ratio.num, track->par->width * 0x10000LL, st->sample_aspect_ratio.den); if (!track_width_1616 || track->height != track->par->height || track_width_1616 > UINT32_MAX) track_width_1616 = track->par->width * 0x10000ULL; } if (track_width_1616 > UINT32_MAX) { av_log(mov->fc, AV_LOG_WARNING, "track width is too large\n"); track_width_1616 = 0; } avio_wb32(pb, track_width_1616); if (track->height > 0xFFFF) { av_log(mov->fc, AV_LOG_WARNING, "track height is too large\n"); avio_wb32(pb, 0); } else avio_wb32(pb, track->height * 0x10000U); } else { avio_wb32(pb, 0); avio_wb32(pb, 0); } return 0x5c; } static int mov_write_tapt_tag(AVIOContext *pb, MOVTrack *track) { int32_t width = av_rescale(track->par->sample_aspect_ratio.num, track->par->width, track->par->sample_aspect_ratio.den); int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tapt"); avio_wb32(pb, 20); ffio_wfourcc(pb, "clef"); avio_wb32(pb, 0); avio_wb32(pb, width << 16); avio_wb32(pb, track->par->height << 16); avio_wb32(pb, 20); ffio_wfourcc(pb, "prof"); avio_wb32(pb, 0); avio_wb32(pb, width << 16); avio_wb32(pb, track->par->height << 16); avio_wb32(pb, 20); ffio_wfourcc(pb, "enof"); avio_wb32(pb, 0); avio_wb32(pb, track->par->width << 16); avio_wb32(pb, track->par->height << 16); return update_size(pb, pos); } // This box seems important for the psp playback ... without it the movie seems to hang static int mov_write_edts_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t duration = av_rescale_rnd(calc_samples_pts_duration(mov, track), mov->movie_timescale, track->timescale, AV_ROUND_UP); int version = duration < INT32_MAX ? 0 : 1; int entry_size, entry_count, size; int64_t delay, start_ct = track->start_cts; int64_t start_dts = track->start_dts; if (track->entry) { if (start_dts != track->cluster[0].dts || start_ct != track->cluster[0].cts) { av_log(mov->fc, AV_LOG_DEBUG, "EDTS using dts:%"PRId64" cts:%d instead of dts:%"PRId64" cts:%"PRId64" tid:%d\n", track->cluster[0].dts, track->cluster[0].cts, start_dts, start_ct, track->track_id); start_dts = track->cluster[0].dts; start_ct = track->cluster[0].cts; } } delay = av_rescale_rnd(start_dts + start_ct, mov->movie_timescale, track->timescale, AV_ROUND_DOWN); version |= delay < INT32_MAX ? 0 : 1; entry_size = (version == 1) ? 20 : 12; entry_count = 1 + (delay > 0); size = 24 + entry_count * entry_size; /* write the atom data */ avio_wb32(pb, size); ffio_wfourcc(pb, "edts"); avio_wb32(pb, size - 8); ffio_wfourcc(pb, "elst"); avio_w8(pb, version); avio_wb24(pb, 0); /* flags */ avio_wb32(pb, entry_count); if (delay > 0) { /* add an empty edit to delay presentation */ /* In the positive delay case, the delay includes the cts * offset, and the second edit list entry below trims out * the same amount from the actual content. This makes sure * that the offset last sample is included in the edit * list duration as well. */ if (version == 1) { avio_wb64(pb, delay); avio_wb64(pb, -1); } else { avio_wb32(pb, delay); avio_wb32(pb, -1); } avio_wb32(pb, 0x00010000); } else { /* Avoid accidentally ending up with start_ct = -1 which has got a * special meaning. Normally start_ct should end up positive or zero * here, but use FFMIN in case dts is a small positive integer * rounded to 0 when represented in movie timescale units. */ av_assert0(av_rescale_rnd(start_dts, mov->movie_timescale, track->timescale, AV_ROUND_DOWN) <= 0); start_ct = -FFMIN(start_dts, 0); /* Note, this delay is calculated from the pts of the first sample, * ensuring that we don't reduce the duration for cases with * dts<0 pts=0. */ duration += delay; } /* For fragmented files, we don't know the full length yet. Setting * duration to 0 allows us to only specify the offset, including * the rest of the content (from all future fragments) without specifying * an explicit duration. */ if (mov->flags & FF_MOV_FLAG_FRAGMENT) duration = 0; /* duration */ if (version == 1) { avio_wb64(pb, duration); avio_wb64(pb, start_ct); } else { avio_wb32(pb, duration); avio_wb32(pb, start_ct); } avio_wb32(pb, 0x00010000); return size; } static int mov_write_tref_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 20); // size ffio_wfourcc(pb, "tref"); avio_wb32(pb, 12); // size (subatom) avio_wl32(pb, track->tref_tag); avio_wb32(pb, track->tref_id); return 20; } // goes at the end of each track! ... Critical for PSP playback ("Incompatible data" without it) static int mov_write_uuid_tag_psp(AVIOContext *pb, MOVTrack *mov) { avio_wb32(pb, 0x34); /* size ... reports as 28 in mp4box! */ ffio_wfourcc(pb, "uuid"); ffio_wfourcc(pb, "USMT"); avio_wb32(pb, 0x21d24fce); avio_wb32(pb, 0xbb88695c); avio_wb32(pb, 0xfac9c740); avio_wb32(pb, 0x1c); // another size here! ffio_wfourcc(pb, "MTDT"); avio_wb32(pb, 0x00010012); avio_wb32(pb, 0x0a); avio_wb32(pb, 0x55c40000); avio_wb32(pb, 0x1); avio_wb32(pb, 0x0); return 0x34; } static int mov_write_udta_sdp(AVIOContext *pb, MOVTrack *track) { AVFormatContext *ctx = track->rtp_ctx; char buf[1000] = ""; int len; ff_sdp_write_media(buf, sizeof(buf), ctx->streams[0], track->src_track, NULL, NULL, 0, 0, ctx); av_strlcatf(buf, sizeof(buf), "a=control:streamid=%d\r\n", track->track_id); len = strlen(buf); avio_wb32(pb, len + 24); ffio_wfourcc(pb, "udta"); avio_wb32(pb, len + 16); ffio_wfourcc(pb, "hnti"); avio_wb32(pb, len + 8); ffio_wfourcc(pb, "sdp "); avio_write(pb, buf, len); return len + 24; } static int mov_write_track_metadata(AVIOContext *pb, AVStream *st, const char *tag, const char *str) { int64_t pos = avio_tell(pb); AVDictionaryEntry *t = av_dict_get(st->metadata, str, NULL, 0); if (!t || !utf8len(t->value)) return 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, tag); /* type */ avio_write(pb, t->value, strlen(t->value)); /* UTF8 string value */ return update_size(pb, pos); } static int mov_write_track_kind(AVIOContext *pb, const char *scheme_uri, const char *value) { int64_t pos = avio_tell(pb); /* Box|FullBox basics */ avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, (const unsigned char *)"kind"); avio_w8(pb, 0); /* version = 0 */ avio_wb24(pb, 0); /* flags = 0 */ /* Required null-terminated scheme URI */ avio_write(pb, (const unsigned char *)scheme_uri, strlen(scheme_uri)); avio_w8(pb, 0); /* Optional value string */ if (value && value[0]) avio_write(pb, (const unsigned char *)value, strlen(value)); avio_w8(pb, 0); return update_size(pb, pos); } static int mov_write_track_kinds(AVIOContext *pb, AVStream *st) { int ret = AVERROR_BUG; for (int i = 0; ff_mov_track_kind_table[i].scheme_uri; i++) { const struct MP4TrackKindMapping map = ff_mov_track_kind_table[i]; for (int j = 0; map.value_maps[j].disposition; j++) { const struct MP4TrackKindValueMapping value_map = map.value_maps[j]; if (!(st->disposition & value_map.disposition)) continue; if ((ret = mov_write_track_kind(pb, map.scheme_uri, value_map.value)) < 0) return ret; } } return 0; } static int mov_write_track_udta_tag(AVIOContext *pb, MOVMuxContext *mov, AVStream *st) { AVIOContext *pb_buf; int ret, size; uint8_t *buf; if (!st) return 0; ret = avio_open_dyn_buf(&pb_buf); if (ret < 0) return ret; if (mov->mode & (MODE_MP4|MODE_MOV)) mov_write_track_metadata(pb_buf, st, "name", "title"); if (mov->mode & MODE_MP4) { if ((ret = mov_write_track_kinds(pb_buf, st)) < 0) return ret; } if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) { avio_wb32(pb, size + 8); ffio_wfourcc(pb, "udta"); avio_write(pb, buf, size); } ffio_free_dyn_buf(&pb_buf); return 0; } static int mov_write_trak_tag(AVFormatContext *s, AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, AVStream *st) { int64_t pos = avio_tell(pb); int entry_backup = track->entry; int chunk_backup = track->chunkCount; int ret; /* If we want to have an empty moov, but some samples already have been * buffered (delay_moov), pretend that no samples have been written yet. */ if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) track->chunkCount = track->entry = 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "trak"); mov_write_tkhd_tag(pb, mov, track, st); av_assert2(mov->use_editlist >= 0); if (track->start_dts != AV_NOPTS_VALUE) { if (mov->use_editlist) mov_write_edts_tag(pb, mov, track); // PSP Movies and several other cases require edts box else if ((track->entry && track->cluster[0].dts) || track->mode == MODE_PSP || is_clcp_track(track)) av_log(mov->fc, AV_LOG_WARNING, "Not writing any edit list even though one would have been required\n"); } if (track->tref_tag) mov_write_tref_tag(pb, track); if ((ret = mov_write_mdia_tag(s, pb, mov, track)) < 0) return ret; if (track->mode == MODE_PSP) mov_write_uuid_tag_psp(pb, track); // PSP Movies require this uuid box if (track->tag == MKTAG('r','t','p',' ')) mov_write_udta_sdp(pb, track); if (track->mode == MODE_MOV) { if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) { double sample_aspect_ratio = av_q2d(st->sample_aspect_ratio); if (st->sample_aspect_ratio.num && 1.0 != sample_aspect_ratio) { mov_write_tapt_tag(pb, track); } } if (is_clcp_track(track) && st->sample_aspect_ratio.num) { mov_write_tapt_tag(pb, track); } } mov_write_track_udta_tag(pb, mov, st); track->entry = entry_backup; track->chunkCount = chunk_backup; return update_size(pb, pos); } static int mov_write_iods_tag(AVIOContext *pb, MOVMuxContext *mov) { int i, has_audio = 0, has_video = 0; int64_t pos = avio_tell(pb); int audio_profile = mov->iods_audio_profile; int video_profile = mov->iods_video_profile; for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) { has_audio |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_AUDIO; has_video |= mov->tracks[i].par->codec_type == AVMEDIA_TYPE_VIDEO; } } if (audio_profile < 0) audio_profile = 0xFF - has_audio; if (video_profile < 0) video_profile = 0xFF - has_video; avio_wb32(pb, 0x0); /* size */ ffio_wfourcc(pb, "iods"); avio_wb32(pb, 0); /* version & flags */ put_descr(pb, 0x10, 7); avio_wb16(pb, 0x004f); avio_w8(pb, 0xff); avio_w8(pb, 0xff); avio_w8(pb, audio_profile); avio_w8(pb, video_profile); avio_w8(pb, 0xff); return update_size(pb, pos); } static int mov_write_trex_tag(AVIOContext *pb, MOVTrack *track) { avio_wb32(pb, 0x20); /* size */ ffio_wfourcc(pb, "trex"); avio_wb32(pb, 0); /* version & flags */ avio_wb32(pb, track->track_id); /* track ID */ avio_wb32(pb, 1); /* default sample description index */ avio_wb32(pb, 0); /* default sample duration */ avio_wb32(pb, 0); /* default sample size */ avio_wb32(pb, 0); /* default sample flags */ return 0; } static int mov_write_mvex_tag(AVIOContext *pb, MOVMuxContext *mov) { int64_t pos = avio_tell(pb); int i; avio_wb32(pb, 0x0); /* size */ ffio_wfourcc(pb, "mvex"); for (i = 0; i < mov->nb_streams; i++) mov_write_trex_tag(pb, &mov->tracks[i]); return update_size(pb, pos); } static int mov_write_mvhd_tag(AVIOContext *pb, MOVMuxContext *mov) { int max_track_id = 1, i; int64_t max_track_len = 0; int version; int timescale; for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry > 0 && mov->tracks[i].timescale) { int64_t max_track_len_temp = av_rescale_rnd( calc_pts_duration(mov, &mov->tracks[i]), mov->movie_timescale, mov->tracks[i].timescale, AV_ROUND_UP); if (max_track_len < max_track_len_temp) max_track_len = max_track_len_temp; if (max_track_id < mov->tracks[i].track_id) max_track_id = mov->tracks[i].track_id; } } /* If using delay_moov, make sure the output is the same as if no * samples had been written yet. */ if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV) { max_track_len = 0; max_track_id = 1; } version = max_track_len < UINT32_MAX ? 0 : 1; avio_wb32(pb, version == 1 ? 120 : 108); /* size */ ffio_wfourcc(pb, "mvhd"); avio_w8(pb, version); avio_wb24(pb, 0); /* flags */ if (version == 1) { avio_wb64(pb, mov->time); avio_wb64(pb, mov->time); } else { avio_wb32(pb, mov->time); /* creation time */ avio_wb32(pb, mov->time); /* modification time */ } timescale = mov->movie_timescale; if (mov->mode == MODE_AVIF && !timescale) timescale = mov->tracks[0].timescale; avio_wb32(pb, timescale); (version == 1) ? avio_wb64(pb, max_track_len) : avio_wb32(pb, max_track_len); /* duration of longest track */ avio_wb32(pb, 0x00010000); /* reserved (preferred rate) 1.0 = normal */ avio_wb16(pb, 0x0100); /* reserved (preferred volume) 1.0 = normal */ ffio_fill(pb, 0, 2 + 2 * 4); /* reserved */ /* Matrix structure */ write_matrix(pb, 1, 0, 0, 1, 0, 0); avio_wb32(pb, 0); /* reserved (preview time) */ avio_wb32(pb, 0); /* reserved (preview duration) */ avio_wb32(pb, 0); /* reserved (poster time) */ avio_wb32(pb, 0); /* reserved (selection time) */ avio_wb32(pb, 0); /* reserved (selection duration) */ avio_wb32(pb, 0); /* reserved (current time) */ avio_wb32(pb, max_track_id + 1); /* Next track id */ return 0x6c; } static int mov_write_itunes_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { avio_wb32(pb, 33); /* size */ ffio_wfourcc(pb, "hdlr"); avio_wb32(pb, 0); avio_wb32(pb, 0); ffio_wfourcc(pb, "mdir"); ffio_wfourcc(pb, "appl"); avio_wb32(pb, 0); avio_wb32(pb, 0); avio_w8(pb, 0); return 33; } /* helper function to write a data tag with the specified string as data */ static int mov_write_string_data_tag(AVIOContext *pb, const char *data, int lang, int long_style) { size_t data_len = strlen(data); if (long_style) { int size = 16 + data_len; avio_wb32(pb, size); /* size */ ffio_wfourcc(pb, "data"); avio_wb32(pb, 1); avio_wb32(pb, 0); avio_write(pb, data, data_len); return size; } else { avio_wb16(pb, data_len); /* string length */ if (!lang) lang = ff_mov_iso639_to_lang("und", 1); avio_wb16(pb, lang); avio_write(pb, data, data_len); return data_len + 4; } } static int mov_write_string_tag(AVIOContext *pb, const char *name, const char *value, int lang, int long_style) { int size = 0; if (value && value[0]) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, name); mov_write_string_data_tag(pb, value, lang, long_style); size = update_size(pb, pos); } return size; } static AVDictionaryEntry *get_metadata_lang(AVFormatContext *s, const char *tag, int *lang) { int l, len, len2; AVDictionaryEntry *t, *t2 = NULL; char tag2[16]; *lang = 0; if (!(t = av_dict_get(s->metadata, tag, NULL, 0))) return NULL; len = strlen(t->key); snprintf(tag2, sizeof(tag2), "%s-", tag); while ((t2 = av_dict_get(s->metadata, tag2, t2, AV_DICT_IGNORE_SUFFIX))) { len2 = strlen(t2->key); if (len2 == len + 4 && !strcmp(t->value, t2->value) && (l = ff_mov_iso639_to_lang(&t2->key[len2 - 3], 1)) >= 0) { *lang = l; return t; } } return t; } static int mov_write_string_metadata(AVFormatContext *s, AVIOContext *pb, const char *name, const char *tag, int long_style) { int lang; AVDictionaryEntry *t = get_metadata_lang(s, tag, &lang); if (!t) return 0; return mov_write_string_tag(pb, name, t->value, lang, long_style); } /* iTunes bpm number */ static int mov_write_tmpo_tag(AVIOContext *pb, AVFormatContext *s) { AVDictionaryEntry *t = av_dict_get(s->metadata, "tmpo", NULL, 0); int size = 0, tmpo = t ? atoi(t->value) : 0; if (tmpo) { size = 26; avio_wb32(pb, size); ffio_wfourcc(pb, "tmpo"); avio_wb32(pb, size-8); /* size */ ffio_wfourcc(pb, "data"); avio_wb32(pb, 0x15); //type specifier avio_wb32(pb, 0); avio_wb16(pb, tmpo); // data } return size; } /* 3GPP TS 26.244 */ static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb) { int lang; int64_t pos = avio_tell(pb); double latitude, longitude, altitude; int32_t latitude_fix, longitude_fix, altitude_fix; AVDictionaryEntry *t = get_metadata_lang(s, "location", &lang); const char *ptr, *place = ""; char *end; static const char *astronomical_body = "earth"; if (!t) return 0; ptr = t->value; longitude = strtod(ptr, &end); if (end == ptr) { av_log(s, AV_LOG_WARNING, "malformed location metadata\n"); return 0; } ptr = end; latitude = strtod(ptr, &end); if (end == ptr) { av_log(s, AV_LOG_WARNING, "malformed location metadata\n"); return 0; } ptr = end; altitude = strtod(ptr, &end); /* If no altitude was present, the default 0 should be fine */ if (*end == '/') place = end + 1; latitude_fix = (int32_t) ((1 << 16) * latitude); longitude_fix = (int32_t) ((1 << 16) * longitude); altitude_fix = (int32_t) ((1 << 16) * altitude); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "loci"); /* type */ avio_wb32(pb, 0); /* version + flags */ avio_wb16(pb, lang); avio_write(pb, place, strlen(place) + 1); avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */ avio_wb32(pb, latitude_fix); avio_wb32(pb, longitude_fix); avio_wb32(pb, altitude_fix); avio_write(pb, astronomical_body, strlen(astronomical_body) + 1); avio_w8(pb, 0); /* additional notes, null terminated string */ return update_size(pb, pos); } /* iTunes track or disc number */ static int mov_write_trkn_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s, int disc) { AVDictionaryEntry *t = av_dict_get(s->metadata, disc ? "disc" : "track", NULL, 0); int size = 0, track = t ? atoi(t->value) : 0; if (track) { int tracks = 0; char *slash = strchr(t->value, '/'); if (slash) tracks = atoi(slash + 1); avio_wb32(pb, 32); /* size */ ffio_wfourcc(pb, disc ? "disk" : "trkn"); avio_wb32(pb, 24); /* size */ ffio_wfourcc(pb, "data"); avio_wb32(pb, 0); // 8 bytes empty avio_wb32(pb, 0); avio_wb16(pb, 0); // empty avio_wb16(pb, track); // track / disc number avio_wb16(pb, tracks); // total track / disc number avio_wb16(pb, 0); // empty size = 32; } return size; } static int mov_write_int8_metadata(AVFormatContext *s, AVIOContext *pb, const char *name, const char *tag, int len) { AVDictionaryEntry *t = NULL; uint8_t num; int size = 24 + len; if (len != 1 && len != 4) return -1; if (!(t = av_dict_get(s->metadata, tag, NULL, 0))) return 0; num = atoi(t->value); avio_wb32(pb, size); ffio_wfourcc(pb, name); avio_wb32(pb, size - 8); ffio_wfourcc(pb, "data"); avio_wb32(pb, 0x15); avio_wb32(pb, 0); if (len==4) avio_wb32(pb, num); else avio_w8 (pb, num); return size; } static int mov_write_covr(AVIOContext *pb, AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int64_t pos = 0; int i; for (i = 0; i < s->nb_streams; i++) { MOVTrack *trk = &mov->tracks[i]; if (!is_cover_image(trk->st) || trk->cover_image->size <= 0) continue; if (!pos) { pos = avio_tell(pb); avio_wb32(pb, 0); ffio_wfourcc(pb, "covr"); } avio_wb32(pb, 16 + trk->cover_image->size); ffio_wfourcc(pb, "data"); avio_wb32(pb, trk->tag); avio_wb32(pb , 0); avio_write(pb, trk->cover_image->data, trk->cover_image->size); } return pos ? update_size(pb, pos) : 0; } /* iTunes meta data list */ static int mov_write_ilst_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ilst"); mov_write_string_metadata(s, pb, "\251nam", "title" , 1); mov_write_string_metadata(s, pb, "\251ART", "artist" , 1); mov_write_string_metadata(s, pb, "aART", "album_artist", 1); mov_write_string_metadata(s, pb, "\251wrt", "composer" , 1); mov_write_string_metadata(s, pb, "\251alb", "album" , 1); mov_write_string_metadata(s, pb, "\251day", "date" , 1); if (!mov_write_string_metadata(s, pb, "\251too", "encoding_tool", 1)) { if (!(s->flags & AVFMT_FLAG_BITEXACT)) mov_write_string_tag(pb, "\251too", LIBAVFORMAT_IDENT, 0, 1); } mov_write_string_metadata(s, pb, "\251cmt", "comment" , 1); mov_write_string_metadata(s, pb, "\251gen", "genre" , 1); mov_write_string_metadata(s, pb, "cprt", "copyright", 1); mov_write_string_metadata(s, pb, "\251grp", "grouping" , 1); mov_write_string_metadata(s, pb, "\251lyr", "lyrics" , 1); mov_write_string_metadata(s, pb, "desc", "description",1); mov_write_string_metadata(s, pb, "ldes", "synopsis" , 1); mov_write_string_metadata(s, pb, "tvsh", "show" , 1); mov_write_string_metadata(s, pb, "tven", "episode_id",1); mov_write_string_metadata(s, pb, "tvnn", "network" , 1); mov_write_string_metadata(s, pb, "keyw", "keywords" , 1); mov_write_int8_metadata (s, pb, "tves", "episode_sort",4); mov_write_int8_metadata (s, pb, "tvsn", "season_number",4); mov_write_int8_metadata (s, pb, "stik", "media_type",1); mov_write_int8_metadata (s, pb, "hdvd", "hd_video", 1); mov_write_int8_metadata (s, pb, "pgap", "gapless_playback",1); mov_write_int8_metadata (s, pb, "cpil", "compilation", 1); mov_write_covr(pb, s); mov_write_trkn_tag(pb, mov, s, 0); // track number mov_write_trkn_tag(pb, mov, s, 1); // disc number mov_write_tmpo_tag(pb, s); return update_size(pb, pos); } static int mov_write_mdta_hdlr_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { avio_wb32(pb, 33); /* size */ ffio_wfourcc(pb, "hdlr"); avio_wb32(pb, 0); avio_wb32(pb, 0); ffio_wfourcc(pb, "mdta"); avio_wb32(pb, 0); avio_wb32(pb, 0); avio_wb32(pb, 0); avio_w8(pb, 0); return 33; } static int mov_write_mdta_keys_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { AVDictionaryEntry *t = NULL; int64_t pos = avio_tell(pb); int64_t curpos, entry_pos; int count = 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "keys"); avio_wb32(pb, 0); entry_pos = avio_tell(pb); avio_wb32(pb, 0); /* entry count */ while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) { size_t key_len = strlen(t->key); avio_wb32(pb, key_len + 8); ffio_wfourcc(pb, "mdta"); avio_write(pb, t->key, key_len); count += 1; } curpos = avio_tell(pb); avio_seek(pb, entry_pos, SEEK_SET); avio_wb32(pb, count); // rewrite entry count avio_seek(pb, curpos, SEEK_SET); return update_size(pb, pos); } static int mov_write_mdta_ilst_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { AVDictionaryEntry *t = NULL; int64_t pos = avio_tell(pb); int count = 1; /* keys are 1-index based */ avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ilst"); while (t = av_dict_get(s->metadata, "", t, AV_DICT_IGNORE_SUFFIX)) { int64_t entry_pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ avio_wb32(pb, count); /* key */ mov_write_string_data_tag(pb, t->value, 0, 1); update_size(pb, entry_pos); count += 1; } return update_size(pb, pos); } /* meta data tags */ static int mov_write_meta_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int size = 0; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "meta"); avio_wb32(pb, 0); if (mov->flags & FF_MOV_FLAG_USE_MDTA) { mov_write_mdta_hdlr_tag(pb, mov, s); mov_write_mdta_keys_tag(pb, mov, s); mov_write_mdta_ilst_tag(pb, mov, s); } else if (mov->mode == MODE_AVIF) { mov_write_hdlr_tag(s, pb, &mov->tracks[0]); // We always write the primary item id as 1 since only one track is // supported for AVIF. mov_write_pitm_tag(pb, 1); mov_write_iloc_tag(pb, mov, s); mov_write_iinf_tag(pb, mov, s); if (s->nb_streams > 1) mov_write_iref_tag(pb, mov, s); mov_write_iprp_tag(pb, mov, s); } else { /* iTunes metadata tag */ mov_write_itunes_hdlr_tag(pb, mov, s); mov_write_ilst_tag(pb, mov, s); } size = update_size(pb, pos); return size; } static int mov_write_raw_metadata_tag(AVFormatContext *s, AVIOContext *pb, const char *name, const char *key) { int len; AVDictionaryEntry *t; if (!(t = av_dict_get(s->metadata, key, NULL, 0))) return 0; len = strlen(t->value); if (len > 0) { int size = len + 8; avio_wb32(pb, size); ffio_wfourcc(pb, name); avio_write(pb, t->value, len); return size; } return 0; } static int ascii_to_wc(AVIOContext *pb, const uint8_t *b) { int val; while (*b) { GET_UTF8(val, *b++, return -1;) avio_wb16(pb, val); } avio_wb16(pb, 0x00); return 0; } static uint16_t language_code(const char *str) { return (((str[0] - 0x60) & 0x1F) << 10) + (((str[1] - 0x60) & 0x1F) << 5) + (( str[2] - 0x60) & 0x1F); } static int mov_write_3gp_udta_tag(AVIOContext *pb, AVFormatContext *s, const char *tag, const char *str) { int64_t pos = avio_tell(pb); AVDictionaryEntry *t = av_dict_get(s->metadata, str, NULL, 0); if (!t || !utf8len(t->value)) return 0; avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, tag); /* type */ avio_wb32(pb, 0); /* version + flags */ if (!strcmp(tag, "yrrc")) avio_wb16(pb, atoi(t->value)); else { avio_wb16(pb, language_code("eng")); /* language */ avio_write(pb, t->value, strlen(t->value) + 1); /* UTF8 string value */ if (!strcmp(tag, "albm") && (t = av_dict_get(s->metadata, "track", NULL, 0))) avio_w8(pb, atoi(t->value)); } return update_size(pb, pos); } static int mov_write_chpl_tag(AVIOContext *pb, AVFormatContext *s) { int64_t pos = avio_tell(pb); int i, nb_chapters = FFMIN(s->nb_chapters, 255); avio_wb32(pb, 0); // size ffio_wfourcc(pb, "chpl"); avio_wb32(pb, 0x01000000); // version + flags avio_wb32(pb, 0); // unknown avio_w8(pb, nb_chapters); for (i = 0; i < nb_chapters; i++) { AVChapter *c = s->chapters[i]; AVDictionaryEntry *t; avio_wb64(pb, av_rescale_q(c->start, c->time_base, (AVRational){1,10000000})); if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { int len = FFMIN(strlen(t->value), 255); avio_w8(pb, len); avio_write(pb, t->value, len); } else avio_w8(pb, 0); } return update_size(pb, pos); } static int mov_write_udta_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { AVIOContext *pb_buf; int ret, size; uint8_t *buf; ret = avio_open_dyn_buf(&pb_buf); if (ret < 0) return ret; if (mov->mode & MODE_3GP) { mov_write_3gp_udta_tag(pb_buf, s, "perf", "artist"); mov_write_3gp_udta_tag(pb_buf, s, "titl", "title"); mov_write_3gp_udta_tag(pb_buf, s, "auth", "author"); mov_write_3gp_udta_tag(pb_buf, s, "gnre", "genre"); mov_write_3gp_udta_tag(pb_buf, s, "dscp", "comment"); mov_write_3gp_udta_tag(pb_buf, s, "albm", "album"); mov_write_3gp_udta_tag(pb_buf, s, "cprt", "copyright"); mov_write_3gp_udta_tag(pb_buf, s, "yrrc", "date"); mov_write_loci_tag(s, pb_buf); } else if (mov->mode == MODE_MOV && !(mov->flags & FF_MOV_FLAG_USE_MDTA)) { // the title field breaks gtkpod with mp4 and my suspicion is that stuff is not valid in mp4 mov_write_string_metadata(s, pb_buf, "\251ART", "artist", 0); mov_write_string_metadata(s, pb_buf, "\251nam", "title", 0); mov_write_string_metadata(s, pb_buf, "\251aut", "author", 0); mov_write_string_metadata(s, pb_buf, "\251alb", "album", 0); mov_write_string_metadata(s, pb_buf, "\251day", "date", 0); mov_write_string_metadata(s, pb_buf, "\251swr", "encoder", 0); // currently ignored by mov.c mov_write_string_metadata(s, pb_buf, "\251des", "comment", 0); // add support for libquicktime, this atom is also actually read by mov.c mov_write_string_metadata(s, pb_buf, "\251cmt", "comment", 0); mov_write_string_metadata(s, pb_buf, "\251gen", "genre", 0); mov_write_string_metadata(s, pb_buf, "\251cpy", "copyright", 0); mov_write_string_metadata(s, pb_buf, "\251mak", "make", 0); mov_write_string_metadata(s, pb_buf, "\251mod", "model", 0); mov_write_string_metadata(s, pb_buf, "\251xyz", "location", 0); mov_write_string_metadata(s, pb_buf, "\251key", "keywords", 0); mov_write_raw_metadata_tag(s, pb_buf, "XMP_", "xmp"); } else { /* iTunes meta data */ mov_write_meta_tag(pb_buf, mov, s); mov_write_loci_tag(s, pb_buf); } if (s->nb_chapters && !(mov->flags & FF_MOV_FLAG_DISABLE_CHPL)) mov_write_chpl_tag(pb_buf, s); if ((size = avio_get_dyn_buf(pb_buf, &buf)) > 0) { avio_wb32(pb, size + 8); ffio_wfourcc(pb, "udta"); avio_write(pb, buf, size); } ffio_free_dyn_buf(&pb_buf); return 0; } static void mov_write_psp_udta_tag(AVIOContext *pb, const char *str, const char *lang, int type) { int len = utf8len(str) + 1; if (len <= 0) return; avio_wb16(pb, len * 2 + 10); /* size */ avio_wb32(pb, type); /* type */ avio_wb16(pb, language_code(lang)); /* language */ avio_wb16(pb, 0x01); /* ? */ ascii_to_wc(pb, str); } static int mov_write_uuidusmt_tag(AVIOContext *pb, AVFormatContext *s) { AVDictionaryEntry *title = av_dict_get(s->metadata, "title", NULL, 0); int64_t pos, pos2; if (title) { pos = avio_tell(pb); avio_wb32(pb, 0); /* size placeholder*/ ffio_wfourcc(pb, "uuid"); ffio_wfourcc(pb, "USMT"); avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */ avio_wb32(pb, 0xbb88695c); avio_wb32(pb, 0xfac9c740); pos2 = avio_tell(pb); avio_wb32(pb, 0); /* size placeholder*/ ffio_wfourcc(pb, "MTDT"); avio_wb16(pb, 4); // ? avio_wb16(pb, 0x0C); /* size */ avio_wb32(pb, 0x0B); /* type */ avio_wb16(pb, language_code("und")); /* language */ avio_wb16(pb, 0x0); /* ? */ avio_wb16(pb, 0x021C); /* data */ if (!(s->flags & AVFMT_FLAG_BITEXACT)) mov_write_psp_udta_tag(pb, LIBAVFORMAT_IDENT, "eng", 0x04); mov_write_psp_udta_tag(pb, title->value, "eng", 0x01); mov_write_psp_udta_tag(pb, "2006/04/01 11:11:11", "und", 0x03); update_size(pb, pos2); return update_size(pb, pos); } return 0; } static void build_chunks(MOVTrack *trk) { int i; MOVIentry *chunk = &trk->cluster[0]; uint64_t chunkSize = chunk->size; chunk->chunkNum = 1; if (trk->chunkCount) return; trk->chunkCount = 1; for (i = 1; ientry; i++){ if (chunk->pos + chunkSize == trk->cluster[i].pos && chunkSize + trk->cluster[i].size < (1<<20)){ chunkSize += trk->cluster[i].size; chunk->samples_in_chunk += trk->cluster[i].entries; } else { trk->cluster[i].chunkNum = chunk->chunkNum+1; chunk=&trk->cluster[i]; chunkSize = chunk->size; trk->chunkCount++; } } } /** * Assign track ids. If option "use_stream_ids_as_track_ids" is set, * the stream ids are used as track ids. * * This assumes mov->tracks and s->streams are in the same order and * there are no gaps in either of them (so mov->tracks[n] refers to * s->streams[n]). * * As an exception, there can be more entries in * s->streams than in mov->tracks, in which case new track ids are * generated (starting after the largest found stream id). */ static int mov_setup_track_ids(MOVMuxContext *mov, AVFormatContext *s) { int i; if (mov->track_ids_ok) return 0; if (mov->use_stream_ids_as_track_ids) { int next_generated_track_id = 0; for (i = 0; i < s->nb_streams; i++) { if (s->streams[i]->id > next_generated_track_id) next_generated_track_id = s->streams[i]->id; } for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) continue; mov->tracks[i].track_id = i >= s->nb_streams ? ++next_generated_track_id : s->streams[i]->id; } } else { for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) continue; mov->tracks[i].track_id = i + 1; } } mov->track_ids_ok = 1; return 0; } static int mov_write_moov_tag(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int i; int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size placeholder*/ ffio_wfourcc(pb, "moov"); mov_setup_track_ids(mov, s); for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry <= 0 && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) continue; mov->tracks[i].time = mov->time; if (mov->tracks[i].entry) build_chunks(&mov->tracks[i]); } if (mov->chapter_track) for (i = 0; i < s->nb_streams; i++) { mov->tracks[i].tref_tag = MKTAG('c','h','a','p'); mov->tracks[i].tref_id = mov->tracks[mov->chapter_track].track_id; } for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (track->tag == MKTAG('r','t','p',' ')) { track->tref_tag = MKTAG('h','i','n','t'); track->tref_id = mov->tracks[track->src_track].track_id; } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) { size_t size; int *fallback; fallback = (int*)av_stream_get_side_data(track->st, AV_PKT_DATA_FALLBACK_TRACK, &size); if (fallback != NULL && size == sizeof(int)) { if (*fallback >= 0 && *fallback < mov->nb_streams) { track->tref_tag = MKTAG('f','a','l','l'); track->tref_id = mov->tracks[*fallback].track_id; } } } } for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].tag == MKTAG('t','m','c','d')) { int src_trk = mov->tracks[i].src_track; mov->tracks[src_trk].tref_tag = mov->tracks[i].tag; mov->tracks[src_trk].tref_id = mov->tracks[i].track_id; //src_trk may have a different timescale than the tmcd track mov->tracks[i].track_duration = av_rescale(mov->tracks[src_trk].track_duration, mov->tracks[i].timescale, mov->tracks[src_trk].timescale); } } mov_write_mvhd_tag(pb, mov); if (mov->mode != MODE_MOV && mov->mode != MODE_AVIF && !mov->iods_skip) mov_write_iods_tag(pb, mov); for (i = 0; i < mov->nb_streams; i++) { if (mov->tracks[i].entry > 0 || mov->flags & FF_MOV_FLAG_FRAGMENT || mov->mode == MODE_AVIF) { int ret = mov_write_trak_tag(s, pb, mov, &(mov->tracks[i]), i < s->nb_streams ? s->streams[i] : NULL); if (ret < 0) return ret; } } if (mov->flags & FF_MOV_FLAG_FRAGMENT) mov_write_mvex_tag(pb, mov); /* QuickTime requires trak to precede this */ if (mov->mode == MODE_PSP) mov_write_uuidusmt_tag(pb, s); else if (mov->mode != MODE_AVIF) mov_write_udta_tag(pb, mov, s); return update_size(pb, pos); } static void param_write_int(AVIOContext *pb, const char *name, int value) { avio_printf(pb, "\n", name, value); } static void param_write_string(AVIOContext *pb, const char *name, const char *value) { avio_printf(pb, "\n", name, value); } static void param_write_hex(AVIOContext *pb, const char *name, const uint8_t *value, int len) { char buf[150]; len = FFMIN(sizeof(buf) / 2 - 1, len); ff_data_to_hex(buf, value, len, 0); avio_printf(pb, "\n", name, buf); } static int mov_write_isml_manifest(AVIOContext *pb, MOVMuxContext *mov, AVFormatContext *s) { int64_t pos = avio_tell(pb); int i; static const AVUUID uuid = { 0xa5, 0xd4, 0x0b, 0x30, 0xe8, 0x14, 0x11, 0xdd, 0xba, 0x2f, 0x08, 0x00, 0x20, 0x0c, 0x9a, 0x66 }; avio_wb32(pb, 0); ffio_wfourcc(pb, "uuid"); avio_write(pb, uuid, AV_UUID_LEN); avio_wb32(pb, 0); avio_printf(pb, "\n"); avio_printf(pb, "\n"); avio_printf(pb, "\n"); if (!(mov->fc->flags & AVFMT_FLAG_BITEXACT)) avio_printf(pb, "\n", LIBAVFORMAT_IDENT); avio_printf(pb, "\n"); avio_printf(pb, "\n"); avio_printf(pb, "\n"); mov_setup_track_ids(mov, s); for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; struct mpeg4_bit_rate_values bit_rates = calculate_mpeg4_bit_rates(track); const char *type; int track_id = track->track_id; char track_name_buf[32] = { 0 }; AVStream *st = track->st; AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO && !is_cover_image(st)) { type = "video"; } else if (track->par->codec_type == AVMEDIA_TYPE_AUDIO) { type = "audio"; } else { continue; } avio_printf(pb, "<%s systemBitrate=\"%"PRIu32"\">\n", type, bit_rates.avg_bit_rate); param_write_int(pb, "systemBitrate", bit_rates.avg_bit_rate); param_write_int(pb, "trackID", track_id); param_write_string(pb, "systemLanguage", lang ? lang->value : "und"); /* Build track name piece by piece: */ /* 1. track type */ av_strlcat(track_name_buf, type, sizeof(track_name_buf)); /* 2. track language, if available */ if (lang) av_strlcatf(track_name_buf, sizeof(track_name_buf), "_%s", lang->value); /* 3. special type suffix */ /* "_cc" = closed captions, "_ad" = audio_description */ if (st->disposition & AV_DISPOSITION_HEARING_IMPAIRED) av_strlcat(track_name_buf, "_cc", sizeof(track_name_buf)); else if (st->disposition & AV_DISPOSITION_VISUAL_IMPAIRED) av_strlcat(track_name_buf, "_ad", sizeof(track_name_buf)); param_write_string(pb, "trackName", track_name_buf); if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) { if (track->par->codec_id == AV_CODEC_ID_H264) { uint8_t *ptr; int size = track->par->extradata_size; if (!ff_avc_write_annexb_extradata(track->par->extradata, &ptr, &size)) { param_write_hex(pb, "CodecPrivateData", ptr ? ptr : track->par->extradata, size); av_free(ptr); } param_write_string(pb, "FourCC", "H264"); } else if (track->par->codec_id == AV_CODEC_ID_VC1) { param_write_string(pb, "FourCC", "WVC1"); param_write_hex(pb, "CodecPrivateData", track->par->extradata, track->par->extradata_size); } param_write_int(pb, "MaxWidth", track->par->width); param_write_int(pb, "MaxHeight", track->par->height); param_write_int(pb, "DisplayWidth", track->par->width); param_write_int(pb, "DisplayHeight", track->par->height); } else { if (track->par->codec_id == AV_CODEC_ID_AAC) { switch (track->par->profile) { case FF_PROFILE_AAC_HE_V2: param_write_string(pb, "FourCC", "AACP"); break; case FF_PROFILE_AAC_HE: param_write_string(pb, "FourCC", "AACH"); break; default: param_write_string(pb, "FourCC", "AACL"); } } else if (track->par->codec_id == AV_CODEC_ID_WMAPRO) { param_write_string(pb, "FourCC", "WMAP"); } param_write_hex(pb, "CodecPrivateData", track->par->extradata, track->par->extradata_size); param_write_int(pb, "AudioTag", ff_codec_get_tag(ff_codec_wav_tags, track->par->codec_id)); param_write_int(pb, "Channels", track->par->ch_layout.nb_channels); param_write_int(pb, "SamplingRate", track->par->sample_rate); param_write_int(pb, "BitsPerSample", 16); param_write_int(pb, "PacketSize", track->par->block_align ? track->par->block_align : 4); } avio_printf(pb, "\n", type); } avio_printf(pb, "\n"); avio_printf(pb, "\n"); avio_printf(pb, "\n"); return update_size(pb, pos); } static int mov_write_mfhd_tag(AVIOContext *pb, MOVMuxContext *mov) { avio_wb32(pb, 16); ffio_wfourcc(pb, "mfhd"); avio_wb32(pb, 0); avio_wb32(pb, mov->fragments); return 0; } static uint32_t get_sample_flags(MOVTrack *track, MOVIentry *entry) { return entry->flags & MOV_SYNC_SAMPLE ? MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO : (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC); } static int mov_write_tfhd_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int64_t moof_offset) { int64_t pos = avio_tell(pb); uint32_t flags = MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION | MOV_TFHD_BASE_DATA_OFFSET; if (!track->entry) { flags |= MOV_TFHD_DURATION_IS_EMPTY; } else { flags |= MOV_TFHD_DEFAULT_FLAGS; } if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET) flags &= ~MOV_TFHD_BASE_DATA_OFFSET; if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) { flags &= ~MOV_TFHD_BASE_DATA_OFFSET; flags |= MOV_TFHD_DEFAULT_BASE_IS_MOOF; } /* CMAF requires all values to be explicit in tfhd atoms */ if (mov->flags & FF_MOV_FLAG_CMAF) flags |= MOV_TFHD_STSD_ID; /* Don't set a default sample size, the silverlight player refuses * to play files with that set. Don't set a default sample duration, * WMP freaks out if it is set. Don't set a base data offset, PIFF * file format says it MUST NOT be set. */ if (track->mode == MODE_ISM) flags &= ~(MOV_TFHD_DEFAULT_SIZE | MOV_TFHD_DEFAULT_DURATION | MOV_TFHD_BASE_DATA_OFFSET | MOV_TFHD_STSD_ID); avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "tfhd"); avio_w8(pb, 0); /* version */ avio_wb24(pb, flags); avio_wb32(pb, track->track_id); /* track-id */ if (flags & MOV_TFHD_BASE_DATA_OFFSET) avio_wb64(pb, moof_offset); if (flags & MOV_TFHD_STSD_ID) { avio_wb32(pb, 1); } if (flags & MOV_TFHD_DEFAULT_DURATION) { track->default_duration = get_cluster_duration(track, 0); avio_wb32(pb, track->default_duration); } if (flags & MOV_TFHD_DEFAULT_SIZE) { track->default_size = track->entry ? track->cluster[0].size : 1; avio_wb32(pb, track->default_size); } else track->default_size = -1; if (flags & MOV_TFHD_DEFAULT_FLAGS) { /* Set the default flags based on the second sample, if available. * If the first sample is different, that can be signaled via a separate field. */ if (track->entry > 1) track->default_sample_flags = get_sample_flags(track, &track->cluster[1]); else track->default_sample_flags = track->par->codec_type == AVMEDIA_TYPE_VIDEO ? (MOV_FRAG_SAMPLE_FLAG_DEPENDS_YES | MOV_FRAG_SAMPLE_FLAG_IS_NON_SYNC) : MOV_FRAG_SAMPLE_FLAG_DEPENDS_NO; avio_wb32(pb, track->default_sample_flags); } return update_size(pb, pos); } static int mov_write_trun_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int moof_size, int first, int end) { int64_t pos = avio_tell(pb); uint32_t flags = MOV_TRUN_DATA_OFFSET; int i; for (i = first; i < end; i++) { if (get_cluster_duration(track, i) != track->default_duration) flags |= MOV_TRUN_SAMPLE_DURATION; if (track->cluster[i].size != track->default_size) flags |= MOV_TRUN_SAMPLE_SIZE; if (i > first && get_sample_flags(track, &track->cluster[i]) != track->default_sample_flags) flags |= MOV_TRUN_SAMPLE_FLAGS; } if (!(flags & MOV_TRUN_SAMPLE_FLAGS) && track->entry > 0 && get_sample_flags(track, &track->cluster[0]) != track->default_sample_flags) flags |= MOV_TRUN_FIRST_SAMPLE_FLAGS; if (track->flags & MOV_TRACK_CTTS) flags |= MOV_TRUN_SAMPLE_CTS; avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "trun"); if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) avio_w8(pb, 1); /* version */ else avio_w8(pb, 0); /* version */ avio_wb24(pb, flags); avio_wb32(pb, end - first); /* sample count */ if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET && !(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) && !mov->first_trun) avio_wb32(pb, 0); /* Later tracks follow immediately after the previous one */ else avio_wb32(pb, moof_size + 8 + track->data_offset + track->cluster[first].pos); /* data offset */ if (flags & MOV_TRUN_FIRST_SAMPLE_FLAGS) avio_wb32(pb, get_sample_flags(track, &track->cluster[first])); for (i = first; i < end; i++) { if (flags & MOV_TRUN_SAMPLE_DURATION) avio_wb32(pb, get_cluster_duration(track, i)); if (flags & MOV_TRUN_SAMPLE_SIZE) avio_wb32(pb, track->cluster[i].size); if (flags & MOV_TRUN_SAMPLE_FLAGS) avio_wb32(pb, get_sample_flags(track, &track->cluster[i])); if (flags & MOV_TRUN_SAMPLE_CTS) avio_wb32(pb, track->cluster[i].cts); } mov->first_trun = 0; return update_size(pb, pos); } static int mov_write_tfxd_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); static const uint8_t uuid[] = { 0x6d, 0x1d, 0x9b, 0x05, 0x42, 0xd5, 0x44, 0xe6, 0x80, 0xe2, 0x14, 0x1d, 0xaf, 0xf7, 0x57, 0xb2 }; avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "uuid"); avio_write(pb, uuid, AV_UUID_LEN); avio_w8(pb, 1); avio_wb24(pb, 0); avio_wb64(pb, track->cluster[0].dts + track->cluster[0].cts); avio_wb64(pb, track->end_pts - (track->cluster[0].dts + track->cluster[0].cts)); return update_size(pb, pos); } static int mov_write_tfrf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int entry) { int n = track->nb_frag_info - 1 - entry, i; int size = 8 + 16 + 4 + 1 + 16*n; static const uint8_t uuid[] = { 0xd4, 0x80, 0x7e, 0xf2, 0xca, 0x39, 0x46, 0x95, 0x8e, 0x54, 0x26, 0xcb, 0x9e, 0x46, 0xa7, 0x9f }; if (entry < 0) return 0; avio_seek(pb, track->frag_info[entry].tfrf_offset, SEEK_SET); avio_wb32(pb, size); ffio_wfourcc(pb, "uuid"); avio_write(pb, uuid, AV_UUID_LEN); avio_w8(pb, 1); avio_wb24(pb, 0); avio_w8(pb, n); for (i = 0; i < n; i++) { int index = entry + 1 + i; avio_wb64(pb, track->frag_info[index].time); avio_wb64(pb, track->frag_info[index].duration); } if (n < mov->ism_lookahead) { int free_size = 16 * (mov->ism_lookahead - n); avio_wb32(pb, free_size); ffio_wfourcc(pb, "free"); ffio_fill(pb, 0, free_size - 8); } return 0; } static int mov_write_tfrf_tags(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track) { int64_t pos = avio_tell(pb); int i; for (i = 0; i < mov->ism_lookahead; i++) { /* Update the tfrf tag for the last ism_lookahead fragments, * nb_frag_info - 1 is the next fragment to be written. */ mov_write_tfrf_tag(pb, mov, track, track->nb_frag_info - 2 - i); } avio_seek(pb, pos, SEEK_SET); return 0; } static int mov_add_tfra_entries(AVIOContext *pb, MOVMuxContext *mov, int tracks, int size) { int i; for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; MOVFragmentInfo *info; if ((tracks >= 0 && i != tracks) || !track->entry) continue; track->nb_frag_info++; if (track->nb_frag_info >= track->frag_info_capacity) { unsigned new_capacity = track->nb_frag_info + MOV_FRAG_INFO_ALLOC_INCREMENT; if (av_reallocp_array(&track->frag_info, new_capacity, sizeof(*track->frag_info))) return AVERROR(ENOMEM); track->frag_info_capacity = new_capacity; } info = &track->frag_info[track->nb_frag_info - 1]; info->offset = avio_tell(pb); info->size = size; // Try to recreate the original pts for the first packet // from the fields we have stored info->time = track->cluster[0].dts + track->cluster[0].cts; info->duration = track->end_pts - (track->cluster[0].dts + track->cluster[0].cts); // If the pts is less than zero, we will have trimmed // away parts of the media track using an edit list, // and the corresponding start presentation time is zero. if (info->time < 0) { info->duration += info->time; info->time = 0; } info->tfrf_offset = 0; mov_write_tfrf_tags(pb, mov, track); } return 0; } static void mov_prune_frag_info(MOVMuxContext *mov, int tracks, int max) { int i; for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if ((tracks >= 0 && i != tracks) || !track->entry) continue; if (track->nb_frag_info > max) { memmove(track->frag_info, track->frag_info + (track->nb_frag_info - max), max * sizeof(*track->frag_info)); track->nb_frag_info = max; } } } static int mov_write_tfdt_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "tfdt"); avio_w8(pb, 1); /* version */ avio_wb24(pb, 0); avio_wb64(pb, track->cluster[0].dts - track->start_dts); return update_size(pb, pos); } static int mov_write_traf_tag(AVIOContext *pb, MOVMuxContext *mov, MOVTrack *track, int64_t moof_offset, int moof_size) { int64_t pos = avio_tell(pb); int i, start = 0; avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "traf"); mov_write_tfhd_tag(pb, mov, track, moof_offset); if (mov->mode != MODE_ISM) mov_write_tfdt_tag(pb, track); for (i = 1; i < track->entry; i++) { if (track->cluster[i].pos != track->cluster[i - 1].pos + track->cluster[i - 1].size) { mov_write_trun_tag(pb, mov, track, moof_size, start, i); start = i; } } mov_write_trun_tag(pb, mov, track, moof_size, start, track->entry); if (mov->mode == MODE_ISM) { mov_write_tfxd_tag(pb, track); if (mov->ism_lookahead) { int size = 16 + 4 + 1 + 16 * mov->ism_lookahead; if (track->nb_frag_info > 0) { MOVFragmentInfo *info = &track->frag_info[track->nb_frag_info - 1]; if (!info->tfrf_offset) info->tfrf_offset = avio_tell(pb); } avio_wb32(pb, 8 + size); ffio_wfourcc(pb, "free"); ffio_fill(pb, 0, size); } } return update_size(pb, pos); } static int mov_write_moof_tag_internal(AVIOContext *pb, MOVMuxContext *mov, int tracks, int moof_size) { int64_t pos = avio_tell(pb); int i; avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "moof"); mov->first_trun = 1; mov_write_mfhd_tag(pb, mov); for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (tracks >= 0 && i != tracks) continue; if (!track->entry) continue; mov_write_traf_tag(pb, mov, track, pos, moof_size); } return update_size(pb, pos); } static int mov_write_sidx_tag(AVIOContext *pb, MOVTrack *track, int ref_size, int total_sidx_size) { int64_t pos = avio_tell(pb), offset_pos, end_pos; int64_t presentation_time, duration, offset; unsigned starts_with_SAP; int i, entries; if (track->entry) { entries = 1; presentation_time = track->cluster[0].dts + track->cluster[0].cts - track->start_dts - track->start_cts; duration = track->end_pts - (track->cluster[0].dts + track->cluster[0].cts); starts_with_SAP = track->cluster[0].flags & MOV_SYNC_SAMPLE; // pts<0 should be cut away using edts if (presentation_time < 0) { duration += presentation_time; presentation_time = 0; } } else { entries = track->nb_frag_info; if (entries <= 0) return 0; presentation_time = track->frag_info[0].time; /* presentation_time <= 0 is handled by mov_add_tfra_entries() */ if (presentation_time > 0) presentation_time -= track->start_dts + track->start_cts; } avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "sidx"); avio_w8(pb, 1); /* version */ avio_wb24(pb, 0); avio_wb32(pb, track->track_id); /* reference_ID */ avio_wb32(pb, track->timescale); /* timescale */ avio_wb64(pb, presentation_time); /* earliest_presentation_time */ offset_pos = avio_tell(pb); avio_wb64(pb, 0); /* first_offset (offset to referenced moof) */ avio_wb16(pb, 0); /* reserved */ avio_wb16(pb, entries); /* reference_count */ for (i = 0; i < entries; i++) { if (!track->entry) { if (i > 1 && track->frag_info[i].offset != track->frag_info[i - 1].offset + track->frag_info[i - 1].size) { av_log(NULL, AV_LOG_ERROR, "Non-consecutive fragments, writing incorrect sidx\n"); } duration = track->frag_info[i].duration; ref_size = track->frag_info[i].size; starts_with_SAP = 1; } avio_wb32(pb, (0 << 31) | (ref_size & 0x7fffffff)); /* reference_type (0 = media) | referenced_size */ avio_wb32(pb, duration); /* subsegment_duration */ avio_wb32(pb, (starts_with_SAP << 31) | (0 << 28) | 0); /* starts_with_SAP | SAP_type | SAP_delta_time */ } end_pos = avio_tell(pb); offset = pos + total_sidx_size - end_pos; avio_seek(pb, offset_pos, SEEK_SET); avio_wb64(pb, offset); avio_seek(pb, end_pos, SEEK_SET); return update_size(pb, pos); } static int mov_write_sidx_tags(AVIOContext *pb, MOVMuxContext *mov, int tracks, int ref_size) { int i, round, ret; AVIOContext *avio_buf; int total_size = 0; for (round = 0; round < 2; round++) { // First run one round to calculate the total size of all // sidx atoms. // This would be much simpler if we'd only write one sidx // atom, for the first track in the moof. if (round == 0) { if ((ret = ffio_open_null_buf(&avio_buf)) < 0) return ret; } else { avio_buf = pb; } for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (tracks >= 0 && i != tracks) continue; // When writing a sidx for the full file, entry is 0, but // we want to include all tracks. ref_size is 0 in this case, // since we read it from frag_info instead. if (!track->entry && ref_size > 0) continue; total_size -= mov_write_sidx_tag(avio_buf, track, ref_size, total_size); } if (round == 0) total_size = ffio_close_null_buf(avio_buf); } return 0; } static int mov_write_prft_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks) { int64_t pos = avio_tell(pb), pts_us, ntp_ts; MOVTrack *first_track; int flags = 24; /* PRFT should be associated with at most one track. So, choosing only the * first track. */ if (tracks > 0) return 0; first_track = &(mov->tracks[0]); if (!first_track->entry) { av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, no entries in the track\n"); return 0; } if (first_track->cluster[0].pts == AV_NOPTS_VALUE) { av_log(mov->fc, AV_LOG_WARNING, "Unable to write PRFT, first PTS is invalid\n"); return 0; } if (mov->write_prft == MOV_PRFT_SRC_WALLCLOCK) { if (first_track->cluster[0].prft.wallclock) { /* Round the NTP time to whole milliseconds. */ ntp_ts = ff_get_formatted_ntp_time((first_track->cluster[0].prft.wallclock / 1000) * 1000 + NTP_OFFSET_US); flags = first_track->cluster[0].prft.flags; } else ntp_ts = ff_get_formatted_ntp_time(ff_ntp_time()); } else if (mov->write_prft == MOV_PRFT_SRC_PTS) { pts_us = av_rescale_q(first_track->cluster[0].pts, first_track->st->time_base, AV_TIME_BASE_Q); ntp_ts = ff_get_formatted_ntp_time(pts_us + NTP_OFFSET_US); } else { av_log(mov->fc, AV_LOG_WARNING, "Unsupported PRFT box configuration: %d\n", mov->write_prft); return 0; } avio_wb32(pb, 0); // Size place holder ffio_wfourcc(pb, "prft"); // Type avio_w8(pb, 1); // Version avio_wb24(pb, flags); // Flags avio_wb32(pb, first_track->track_id); // reference track ID avio_wb64(pb, ntp_ts); // NTP time stamp avio_wb64(pb, first_track->cluster[0].pts); //media time return update_size(pb, pos); } static int mov_write_moof_tag(AVIOContext *pb, MOVMuxContext *mov, int tracks, int64_t mdat_size) { AVIOContext *avio_buf; int ret, moof_size; if ((ret = ffio_open_null_buf(&avio_buf)) < 0) return ret; mov_write_moof_tag_internal(avio_buf, mov, tracks, 0); moof_size = ffio_close_null_buf(avio_buf); if (mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX))) mov_write_sidx_tags(pb, mov, tracks, moof_size + 8 + mdat_size); if (mov->write_prft > MOV_PRFT_NONE && mov->write_prft < MOV_PRFT_NB) mov_write_prft_tag(pb, mov, tracks); if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX || !(mov->flags & FF_MOV_FLAG_SKIP_TRAILER) || mov->ism_lookahead) { if ((ret = mov_add_tfra_entries(pb, mov, tracks, moof_size + 8 + mdat_size)) < 0) return ret; if (!(mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) && mov->flags & FF_MOV_FLAG_SKIP_TRAILER) { mov_prune_frag_info(mov, tracks, mov->ism_lookahead + 1); } } return mov_write_moof_tag_internal(pb, mov, tracks, moof_size); } static int mov_write_tfra_tag(AVIOContext *pb, MOVTrack *track) { int64_t pos = avio_tell(pb); int i; avio_wb32(pb, 0); /* size placeholder */ ffio_wfourcc(pb, "tfra"); avio_w8(pb, 1); /* version */ avio_wb24(pb, 0); avio_wb32(pb, track->track_id); avio_wb32(pb, 0); /* length of traf/trun/sample num */ avio_wb32(pb, track->nb_frag_info); for (i = 0; i < track->nb_frag_info; i++) { avio_wb64(pb, track->frag_info[i].time); avio_wb64(pb, track->frag_info[i].offset + track->data_offset); avio_w8(pb, 1); /* traf number */ avio_w8(pb, 1); /* trun number */ avio_w8(pb, 1); /* sample number */ } return update_size(pb, pos); } static int mov_write_mfra_tag(AVIOContext *pb, MOVMuxContext *mov) { AVIOContext *mfra_pb; int i, ret, sz; uint8_t *buf; ret = avio_open_dyn_buf(&mfra_pb); if (ret < 0) return ret; avio_wb32(mfra_pb, 0); /* size placeholder */ ffio_wfourcc(mfra_pb, "mfra"); /* An empty mfra atom is enough to indicate to the publishing point that * the stream has ended. */ if (mov->flags & FF_MOV_FLAG_ISML) goto done_mfra; for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (track->nb_frag_info) mov_write_tfra_tag(mfra_pb, track); } avio_wb32(mfra_pb, 16); ffio_wfourcc(mfra_pb, "mfro"); avio_wb32(mfra_pb, 0); /* version + flags */ avio_wb32(mfra_pb, avio_tell(mfra_pb) + 4); done_mfra: sz = update_size(mfra_pb, 0); ret = avio_get_dyn_buf(mfra_pb, &buf); avio_write(pb, buf, ret); ffio_free_dyn_buf(&mfra_pb); return sz; } static int mov_write_mdat_tag(AVIOContext *pb, MOVMuxContext *mov) { avio_wb32(pb, 8); // placeholder for extended size field (64 bit) ffio_wfourcc(pb, mov->mode == MODE_MOV ? "wide" : "free"); mov->mdat_pos = avio_tell(pb); avio_wb32(pb, 0); /* size placeholder*/ ffio_wfourcc(pb, "mdat"); return 0; } static void mov_write_ftyp_tag_internal(AVIOContext *pb, AVFormatContext *s, int has_h264, int has_video, int write_minor) { MOVMuxContext *mov = s->priv_data; int minor = 0x200; if (mov->major_brand && strlen(mov->major_brand) >= 4) ffio_wfourcc(pb, mov->major_brand); else if (mov->mode == MODE_3GP) { ffio_wfourcc(pb, has_h264 ? "3gp6" : "3gp4"); minor = has_h264 ? 0x100 : 0x200; } else if (mov->mode == MODE_AVIF) { ffio_wfourcc(pb, mov->is_animated_avif ? "avis" : "avif"); minor = 0; } else if (mov->mode & MODE_3G2) { ffio_wfourcc(pb, has_h264 ? "3g2b" : "3g2a"); minor = has_h264 ? 0x20000 : 0x10000; } else if (mov->mode == MODE_PSP) ffio_wfourcc(pb, "MSNV"); else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_FRAGMENT && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) ffio_wfourcc(pb, "iso6"); // Required when using signed CTS offsets in trun boxes else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) ffio_wfourcc(pb, "iso5"); // Required when using default-base-is-moof else if (mov->mode == MODE_MP4 && mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) ffio_wfourcc(pb, "iso4"); else if (mov->mode == MODE_MP4) ffio_wfourcc(pb, "isom"); else if (mov->mode == MODE_IPOD) ffio_wfourcc(pb, has_video ? "M4V ":"M4A "); else if (mov->mode == MODE_ISM) ffio_wfourcc(pb, "isml"); else if (mov->mode == MODE_F4V) ffio_wfourcc(pb, "f4v "); else ffio_wfourcc(pb, "qt "); if (write_minor) avio_wb32(pb, minor); } static int mov_write_ftyp_tag(AVIOContext *pb, AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int64_t pos = avio_tell(pb); int has_h264 = 0, has_av1 = 0, has_video = 0, has_dolby = 0; int i; for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; if (is_cover_image(st)) continue; if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) has_video = 1; if (st->codecpar->codec_id == AV_CODEC_ID_H264) has_h264 = 1; if (st->codecpar->codec_id == AV_CODEC_ID_AV1) has_av1 = 1; if (st->codecpar->codec_id == AV_CODEC_ID_AC3 || st->codecpar->codec_id == AV_CODEC_ID_EAC3 || st->codecpar->codec_id == AV_CODEC_ID_TRUEHD || av_stream_get_side_data(st, AV_PKT_DATA_DOVI_CONF, NULL)) has_dolby = 1; } avio_wb32(pb, 0); /* size */ ffio_wfourcc(pb, "ftyp"); // Write major brand mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 1); // Write the major brand as the first compatible brand as well mov_write_ftyp_tag_internal(pb, s, has_h264, has_video, 0); // Write compatible brands, ensuring that we don't write the major brand as a // compatible brand a second time. if (mov->mode == MODE_ISM) { ffio_wfourcc(pb, "piff"); } else if (mov->mode == MODE_AVIF) { const AVPixFmtDescriptor *pix_fmt_desc = av_pix_fmt_desc_get(s->streams[0]->codecpar->format); const int depth = pix_fmt_desc->comp[0].depth; if (mov->is_animated_avif) { // For animated AVIF, major brand is "avis". Add "avif" as a // compatible brand. ffio_wfourcc(pb, "avif"); ffio_wfourcc(pb, "msf1"); ffio_wfourcc(pb, "iso8"); } ffio_wfourcc(pb, "mif1"); ffio_wfourcc(pb, "miaf"); if (depth == 8 || depth == 10) { // MA1B and MA1A brands are based on AV1 profile. Short hand for // computing that is based on chroma subsampling type. 420 chroma // subsampling is MA1B. 444 chroma subsampling is MA1A. if (!pix_fmt_desc->log2_chroma_w && !pix_fmt_desc->log2_chroma_h) { // 444 chroma subsampling. ffio_wfourcc(pb, "MA1A"); } else { // 420 chroma subsampling. ffio_wfourcc(pb, "MA1B"); } } } else if (mov->mode != MODE_MOV) { // We add tfdt atoms when fragmenting, signal this with the iso6 compatible // brand, if not already the major brand. This is compatible with users that // don't understand tfdt. if (mov->mode == MODE_MP4) { if (mov->flags & FF_MOV_FLAG_CMAF) ffio_wfourcc(pb, "cmfc"); if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)) ffio_wfourcc(pb, "iso6"); if (has_av1) ffio_wfourcc(pb, "av01"); if (has_dolby) ffio_wfourcc(pb, "dby1"); } else { if (mov->flags & FF_MOV_FLAG_FRAGMENT) ffio_wfourcc(pb, "iso6"); if (mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) ffio_wfourcc(pb, "iso5"); else if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) ffio_wfourcc(pb, "iso4"); } // Brands prior to iso5 can't be signaled when using default-base-is-moof if (!(mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF)) { // write isom for mp4 only if it it's not the major brand already. if (mov->mode != MODE_MP4 || mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) ffio_wfourcc(pb, "isom"); ffio_wfourcc(pb, "iso2"); if (has_h264) ffio_wfourcc(pb, "avc1"); } } if (mov->mode == MODE_MP4) ffio_wfourcc(pb, "mp41"); if (mov->flags & FF_MOV_FLAG_DASH && mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) ffio_wfourcc(pb, "dash"); return update_size(pb, pos); } static int mov_write_uuidprof_tag(AVIOContext *pb, AVFormatContext *s) { AVStream *video_st = s->streams[0]; AVCodecParameters *video_par = s->streams[0]->codecpar; AVCodecParameters *audio_par = s->streams[1]->codecpar; int audio_rate = audio_par->sample_rate; int64_t frame_rate = video_st->avg_frame_rate.den ? (video_st->avg_frame_rate.num * 0x10000LL) / video_st->avg_frame_rate.den : 0; int audio_kbitrate = audio_par->bit_rate / 1000; int video_kbitrate = FFMIN(video_par->bit_rate / 1000, 800 - audio_kbitrate); if (frame_rate < 0 || frame_rate > INT32_MAX) { av_log(s, AV_LOG_ERROR, "Frame rate %f outside supported range\n", frame_rate / (double)0x10000); return AVERROR(EINVAL); } avio_wb32(pb, 0x94); /* size */ ffio_wfourcc(pb, "uuid"); ffio_wfourcc(pb, "PROF"); avio_wb32(pb, 0x21d24fce); /* 96 bit UUID */ avio_wb32(pb, 0xbb88695c); avio_wb32(pb, 0xfac9c740); avio_wb32(pb, 0x0); /* ? */ avio_wb32(pb, 0x3); /* 3 sections ? */ avio_wb32(pb, 0x14); /* size */ ffio_wfourcc(pb, "FPRF"); avio_wb32(pb, 0x0); /* ? */ avio_wb32(pb, 0x0); /* ? */ avio_wb32(pb, 0x0); /* ? */ avio_wb32(pb, 0x2c); /* size */ ffio_wfourcc(pb, "APRF"); /* audio */ avio_wb32(pb, 0x0); avio_wb32(pb, 0x2); /* TrackID */ ffio_wfourcc(pb, "mp4a"); avio_wb32(pb, 0x20f); avio_wb32(pb, 0x0); avio_wb32(pb, audio_kbitrate); avio_wb32(pb, audio_kbitrate); avio_wb32(pb, audio_rate); avio_wb32(pb, audio_par->ch_layout.nb_channels); avio_wb32(pb, 0x34); /* size */ ffio_wfourcc(pb, "VPRF"); /* video */ avio_wb32(pb, 0x0); avio_wb32(pb, 0x1); /* TrackID */ if (video_par->codec_id == AV_CODEC_ID_H264) { ffio_wfourcc(pb, "avc1"); avio_wb16(pb, 0x014D); avio_wb16(pb, 0x0015); } else { ffio_wfourcc(pb, "mp4v"); avio_wb16(pb, 0x0000); avio_wb16(pb, 0x0103); } avio_wb32(pb, 0x0); avio_wb32(pb, video_kbitrate); avio_wb32(pb, video_kbitrate); avio_wb32(pb, frame_rate); avio_wb32(pb, frame_rate); avio_wb16(pb, video_par->width); avio_wb16(pb, video_par->height); avio_wb32(pb, 0x010001); /* ? */ return 0; } static int mov_write_identification(AVIOContext *pb, AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int i; mov_write_ftyp_tag(pb,s); if (mov->mode == MODE_PSP) { int video_streams_nb = 0, audio_streams_nb = 0, other_streams_nb = 0; for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; if (is_cover_image(st)) continue; if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) video_streams_nb++; else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) audio_streams_nb++; else other_streams_nb++; } if (video_streams_nb != 1 || audio_streams_nb != 1 || other_streams_nb) { av_log(s, AV_LOG_ERROR, "PSP mode need one video and one audio stream\n"); return AVERROR(EINVAL); } return mov_write_uuidprof_tag(pb, s); } return 0; } static int mov_parse_mpeg2_frame(AVPacket *pkt, uint32_t *flags) { uint32_t c = -1; int i, closed_gop = 0; for (i = 0; i < pkt->size - 4; i++) { c = (c << 8) + pkt->data[i]; if (c == 0x1b8) { // gop closed_gop = pkt->data[i + 4] >> 6 & 0x01; } else if (c == 0x100) { // pic int temp_ref = (pkt->data[i + 1] << 2) | (pkt->data[i + 2] >> 6); if (!temp_ref || closed_gop) // I picture is not reordered *flags = MOV_SYNC_SAMPLE; else *flags = MOV_PARTIAL_SYNC_SAMPLE; break; } } return 0; } static void mov_parse_vc1_frame(AVPacket *pkt, MOVTrack *trk) { const uint8_t *start, *next, *end = pkt->data + pkt->size; int seq = 0, entry = 0; int key = pkt->flags & AV_PKT_FLAG_KEY; start = find_next_marker(pkt->data, end); for (next = start; next < end; start = next) { next = find_next_marker(start + 4, end); switch (AV_RB32(start)) { case VC1_CODE_SEQHDR: seq = 1; break; case VC1_CODE_ENTRYPOINT: entry = 1; break; case VC1_CODE_SLICE: trk->vc1_info.slices = 1; break; } } if (!trk->entry && trk->vc1_info.first_packet_seen) trk->vc1_info.first_frag_written = 1; if (!trk->entry && !trk->vc1_info.first_frag_written) { /* First packet in first fragment */ trk->vc1_info.first_packet_seq = seq; trk->vc1_info.first_packet_entry = entry; trk->vc1_info.first_packet_seen = 1; } else if ((seq && !trk->vc1_info.packet_seq) || (entry && !trk->vc1_info.packet_entry)) { int i; for (i = 0; i < trk->entry; i++) trk->cluster[i].flags &= ~MOV_SYNC_SAMPLE; trk->has_keyframes = 0; if (seq) trk->vc1_info.packet_seq = 1; if (entry) trk->vc1_info.packet_entry = 1; if (!trk->vc1_info.first_frag_written) { /* First fragment */ if ((!seq || trk->vc1_info.first_packet_seq) && (!entry || trk->vc1_info.first_packet_entry)) { /* First packet had the same headers as this one, readd the * sync sample flag. */ trk->cluster[0].flags |= MOV_SYNC_SAMPLE; trk->has_keyframes = 1; } } } if (trk->vc1_info.packet_seq && trk->vc1_info.packet_entry) key = seq && entry; else if (trk->vc1_info.packet_seq) key = seq; else if (trk->vc1_info.packet_entry) key = entry; if (key) { trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE; trk->has_keyframes++; } } static void mov_parse_truehd_frame(AVPacket *pkt, MOVTrack *trk) { int length; if (pkt->size < 8) return; length = (AV_RB16(pkt->data) & 0xFFF) * 2; if (length < 8 || length > pkt->size) return; if (AV_RB32(pkt->data + 4) == 0xF8726FBA) { trk->cluster[trk->entry].flags |= MOV_SYNC_SAMPLE; trk->has_keyframes++; } return; } static int mov_flush_fragment_interleaving(AVFormatContext *s, MOVTrack *track) { MOVMuxContext *mov = s->priv_data; int ret, buf_size; uint8_t *buf; int i, offset; if (!track->mdat_buf) return 0; if (!mov->mdat_buf) { if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0) return ret; } buf_size = avio_get_dyn_buf(track->mdat_buf, &buf); offset = avio_tell(mov->mdat_buf); avio_write(mov->mdat_buf, buf, buf_size); ffio_free_dyn_buf(&track->mdat_buf); for (i = track->entries_flushed; i < track->entry; i++) track->cluster[i].pos += offset; track->entries_flushed = track->entry; return 0; } static int mov_write_squashed_packet(AVFormatContext *s, MOVTrack *track) { MOVMuxContext *mov = s->priv_data; AVPacket *squashed_packet = mov->pkt; int ret = AVERROR_BUG; switch (track->st->codecpar->codec_id) { case AV_CODEC_ID_TTML: { int had_packets = !!track->squashed_packet_queue.head; if ((ret = ff_mov_generate_squashed_ttml_packet(s, track, squashed_packet)) < 0) { goto finish_squash; } // We have generated a padding packet (no actual input packets in // queue) and its duration is zero. Skipping writing it. if (!had_packets && squashed_packet->duration == 0) { goto finish_squash; } track->end_reliable = 1; break; } default: ret = AVERROR(EINVAL); goto finish_squash; } squashed_packet->stream_index = track->st->index; ret = mov_write_single_packet(s, squashed_packet); finish_squash: av_packet_unref(squashed_packet); return ret; } static int mov_write_squashed_packets(AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; for (int i = 0; i < s->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; int ret = AVERROR_BUG; if (track->squash_fragment_samples_to_one && !track->entry) { if ((ret = mov_write_squashed_packet(s, track)) < 0) { av_log(s, AV_LOG_ERROR, "Failed to write squashed packet for %s stream with " "index %d and track id %d. Error: %s\n", avcodec_get_name(track->st->codecpar->codec_id), track->st->index, track->track_id, av_err2str(ret)); return ret; } } } return 0; } static int mov_flush_fragment(AVFormatContext *s, int force) { MOVMuxContext *mov = s->priv_data; int i, first_track = -1; int64_t mdat_size = 0; int ret; int has_video = 0, starts_with_key = 0, first_video_track = 1; if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) return 0; // Check if we have any tracks that require squashing. // In that case, we'll have to write the packet here. if ((ret = mov_write_squashed_packets(s)) < 0) return ret; // Try to fill in the duration of the last packet in each stream // from queued packets in the interleave queues. If the flushing // of fragments was triggered automatically by an AVPacket, we // already have reliable info for the end of that track, but other // tracks may need to be filled in. for (i = 0; i < s->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (!track->end_reliable) { const AVPacket *pkt = ff_interleaved_peek(s, i); if (pkt) { int64_t offset, dts, pts; ff_get_muxer_ts_offset(s, i, &offset); pts = pkt->pts + offset; dts = pkt->dts + offset; if (track->dts_shift != AV_NOPTS_VALUE) dts += track->dts_shift; track->track_duration = dts - track->start_dts; if (pts != AV_NOPTS_VALUE) track->end_pts = pts; else track->end_pts = dts; } } } for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (track->entry <= 1) continue; // Sample durations are calculated as the diff of dts values, // but for the last sample in a fragment, we don't know the dts // of the first sample in the next fragment, so we have to rely // on what was set as duration in the AVPacket. Not all callers // set this though, so we might want to replace it with an // estimate if it currently is zero. if (get_cluster_duration(track, track->entry - 1) != 0) continue; // Use the duration (i.e. dts diff) of the second last sample for // the last one. This is a wild guess (and fatal if it turns out // to be too long), but probably the best we can do - having a zero // duration is bad as well. track->track_duration += get_cluster_duration(track, track->entry - 2); track->end_pts += get_cluster_duration(track, track->entry - 2); if (!mov->missing_duration_warned) { av_log(s, AV_LOG_WARNING, "Estimating the duration of the last packet in a " "fragment, consider setting the duration field in " "AVPacket instead.\n"); mov->missing_duration_warned = 1; } } if (!mov->moov_written) { int64_t pos = avio_tell(s->pb); uint8_t *buf; int buf_size, moov_size; for (i = 0; i < mov->nb_streams; i++) if (!mov->tracks[i].entry && !is_cover_image(mov->tracks[i].st)) break; /* Don't write the initial moov unless all tracks have data */ if (i < mov->nb_streams && !force) return 0; moov_size = get_moov_size(s); for (i = 0; i < mov->nb_streams; i++) mov->tracks[i].data_offset = pos + moov_size + 8; avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_HEADER); if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) mov_write_identification(s->pb, s); if ((ret = mov_write_moov_tag(s->pb, mov, s)) < 0) return ret; if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) { if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) mov->reserved_header_pos = avio_tell(s->pb); avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT); mov->moov_written = 1; return 0; } buf_size = avio_get_dyn_buf(mov->mdat_buf, &buf); avio_wb32(s->pb, buf_size + 8); ffio_wfourcc(s->pb, "mdat"); avio_write(s->pb, buf, buf_size); ffio_free_dyn_buf(&mov->mdat_buf); if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) mov->reserved_header_pos = avio_tell(s->pb); mov->moov_written = 1; mov->mdat_size = 0; for (i = 0; i < mov->nb_streams; i++) { mov->tracks[i].entry = 0; mov->tracks[i].end_reliable = 0; } avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT); return 0; } if (mov->frag_interleave) { for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; int ret; if ((ret = mov_flush_fragment_interleaving(s, track)) < 0) return ret; } if (!mov->mdat_buf) return 0; mdat_size = avio_tell(mov->mdat_buf); } for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF || mov->frag_interleave) track->data_offset = 0; else track->data_offset = mdat_size; if (track->par->codec_type == AVMEDIA_TYPE_VIDEO) { has_video = 1; if (first_video_track) { if (track->entry) starts_with_key = track->cluster[0].flags & MOV_SYNC_SAMPLE; first_video_track = 0; } } if (!track->entry) continue; if (track->mdat_buf) mdat_size += avio_tell(track->mdat_buf); if (first_track < 0) first_track = i; } if (!mdat_size) return 0; avio_write_marker(s->pb, av_rescale(mov->tracks[first_track].cluster[0].dts, AV_TIME_BASE, mov->tracks[first_track].timescale), (has_video ? starts_with_key : mov->tracks[first_track].cluster[0].flags & MOV_SYNC_SAMPLE) ? AVIO_DATA_MARKER_SYNC_POINT : AVIO_DATA_MARKER_BOUNDARY_POINT); for (i = 0; i < mov->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; int buf_size, write_moof = 1, moof_tracks = -1; uint8_t *buf; if (mov->flags & FF_MOV_FLAG_SEPARATE_MOOF) { if (!track->entry) continue; mdat_size = avio_tell(track->mdat_buf); moof_tracks = i; } else { write_moof = i == first_track; } if (write_moof) { avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT); mov_write_moof_tag(s->pb, mov, moof_tracks, mdat_size); mov->fragments++; avio_wb32(s->pb, mdat_size + 8); ffio_wfourcc(s->pb, "mdat"); } track->entry = 0; track->entries_flushed = 0; track->end_reliable = 0; if (!mov->frag_interleave) { if (!track->mdat_buf) continue; buf_size = avio_close_dyn_buf(track->mdat_buf, &buf); track->mdat_buf = NULL; } else { if (!mov->mdat_buf) continue; buf_size = avio_close_dyn_buf(mov->mdat_buf, &buf); mov->mdat_buf = NULL; } avio_write(s->pb, buf, buf_size); av_free(buf); } mov->mdat_size = 0; avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_FLUSH_POINT); return 0; } static int mov_auto_flush_fragment(AVFormatContext *s, int force) { MOVMuxContext *mov = s->priv_data; int had_moov = mov->moov_written; int ret = mov_flush_fragment(s, force); if (ret < 0) return ret; // If using delay_moov, the first flush only wrote the moov, // not the actual moof+mdat pair, thus flush once again. if (!had_moov && mov->flags & FF_MOV_FLAG_DELAY_MOOV) ret = mov_flush_fragment(s, force); return ret; } static int check_pkt(AVFormatContext *s, AVPacket *pkt) { MOVMuxContext *mov = s->priv_data; MOVTrack *trk = &mov->tracks[pkt->stream_index]; int64_t ref; uint64_t duration; if (trk->entry) { ref = trk->cluster[trk->entry - 1].dts; } else if ( trk->start_dts != AV_NOPTS_VALUE && !trk->frag_discont) { ref = trk->start_dts + trk->track_duration; } else ref = pkt->dts; // Skip tests for the first packet if (trk->dts_shift != AV_NOPTS_VALUE) { /* With negative CTS offsets we have set an offset to the DTS, * reverse this for the check. */ ref -= trk->dts_shift; } duration = pkt->dts - ref; if (pkt->dts < ref || duration >= INT_MAX) { av_log(s, AV_LOG_WARNING, "Packet duration: %"PRId64" / dts: %"PRId64" is out of range\n", duration, pkt->dts); pkt->dts = ref + 1; pkt->pts = AV_NOPTS_VALUE; } if (pkt->duration < 0 || pkt->duration > INT_MAX) { av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" is invalid\n", pkt->duration); return AVERROR(EINVAL); } return 0; } int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt) { MOVMuxContext *mov = s->priv_data; AVIOContext *pb = s->pb; MOVTrack *trk = &mov->tracks[pkt->stream_index]; AVCodecParameters *par = trk->par; AVProducerReferenceTime *prft; unsigned int samples_in_chunk = 0; int size = pkt->size, ret = 0, offset = 0; size_t prft_size; uint8_t *reformatted_data = NULL; ret = check_pkt(s, pkt); if (ret < 0) return ret; if (mov->flags & FF_MOV_FLAG_FRAGMENT || mov->mode == MODE_AVIF) { int ret; if (mov->moov_written || mov->flags & FF_MOV_FLAG_EMPTY_MOOV) { if (mov->frag_interleave && mov->fragments > 0) { if (trk->entry - trk->entries_flushed >= mov->frag_interleave) { if ((ret = mov_flush_fragment_interleaving(s, trk)) < 0) return ret; } } if (!trk->mdat_buf) { if ((ret = avio_open_dyn_buf(&trk->mdat_buf)) < 0) return ret; } pb = trk->mdat_buf; } else { if (!mov->mdat_buf) { if ((ret = avio_open_dyn_buf(&mov->mdat_buf)) < 0) return ret; } pb = mov->mdat_buf; } } if (par->codec_id == AV_CODEC_ID_AMR_NB) { /* We must find out how many AMR blocks there are in one packet */ static const uint16_t packed_size[16] = {13, 14, 16, 18, 20, 21, 27, 32, 6, 0, 0, 0, 0, 0, 0, 1}; int len = 0; while (len < size && samples_in_chunk < 100) { len += packed_size[(pkt->data[len] >> 3) & 0x0F]; samples_in_chunk++; } if (samples_in_chunk > 1) { av_log(s, AV_LOG_ERROR, "fatal error, input is not a single packet, implement a AVParser for it\n"); return -1; } } else if (par->codec_id == AV_CODEC_ID_ADPCM_MS || par->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV) { samples_in_chunk = trk->par->frame_size; } else if (trk->sample_size) samples_in_chunk = size / trk->sample_size; else samples_in_chunk = 1; if (samples_in_chunk < 1) { av_log(s, AV_LOG_ERROR, "fatal error, input packet contains no samples\n"); return AVERROR_PATCHWELCOME; } /* copy extradata if it exists */ if (trk->vos_len == 0 && par->extradata_size > 0 && !TAG_IS_AVCI(trk->tag) && (par->codec_id != AV_CODEC_ID_DNXHD)) { trk->vos_len = par->extradata_size; trk->vos_data = av_malloc(trk->vos_len + AV_INPUT_BUFFER_PADDING_SIZE); if (!trk->vos_data) { ret = AVERROR(ENOMEM); goto err; } memcpy(trk->vos_data, par->extradata, trk->vos_len); memset(trk->vos_data + trk->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE); } if ((par->codec_id == AV_CODEC_ID_DNXHD || par->codec_id == AV_CODEC_ID_H264 || par->codec_id == AV_CODEC_ID_HEVC || par->codec_id == AV_CODEC_ID_TRUEHD) && !trk->vos_len && !TAG_IS_AVCI(trk->tag)) { /* copy frame to create needed atoms */ trk->vos_len = size; trk->vos_data = av_malloc(size + AV_INPUT_BUFFER_PADDING_SIZE); if (!trk->vos_data) { ret = AVERROR(ENOMEM); goto err; } memcpy(trk->vos_data, pkt->data, size); memset(trk->vos_data + size, 0, AV_INPUT_BUFFER_PADDING_SIZE); } if (par->codec_id == AV_CODEC_ID_AAC && pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) { if (!s->streams[pkt->stream_index]->nb_frames) { av_log(s, AV_LOG_ERROR, "Malformed AAC bitstream detected: " "use the audio bitstream filter 'aac_adtstoasc' to fix it " "('-bsf:a aac_adtstoasc' option with ffmpeg)\n"); return -1; } av_log(s, AV_LOG_WARNING, "aac bitstream error\n"); } if (par->codec_id == AV_CODEC_ID_H264 && trk->vos_len > 0 && *(uint8_t *)trk->vos_data != 1 && !TAG_IS_AVCI(trk->tag)) { /* from x264 or from bytestream H.264 */ /* NAL reformatting needed */ if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) { ret = ff_avc_parse_nal_units_buf(pkt->data, &reformatted_data, &size); if (ret < 0) return ret; avio_write(pb, reformatted_data, size); } else { if (trk->cenc.aes_ctr) { size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size); if (size < 0) { ret = size; goto err; } } else { size = ff_avc_parse_nal_units(pb, pkt->data, pkt->size); } } } else if (par->codec_id == AV_CODEC_ID_HEVC && trk->vos_len > 6 && (AV_RB24(trk->vos_data) == 1 || AV_RB32(trk->vos_data) == 1)) { /* extradata is Annex B, assume the bitstream is too and convert it */ if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) { ret = ff_hevc_annexb2mp4_buf(pkt->data, &reformatted_data, &size, 0, NULL); if (ret < 0) return ret; avio_write(pb, reformatted_data, size); } else { if (trk->cenc.aes_ctr) { size = ff_mov_cenc_avc_parse_nal_units(&trk->cenc, pb, pkt->data, size); if (size < 0) { ret = size; goto err; } } else { size = ff_hevc_annexb2mp4(pb, pkt->data, pkt->size, 0, NULL); } } } else if (par->codec_id == AV_CODEC_ID_AV1) { if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) { ret = ff_av1_filter_obus_buf(pkt->data, &reformatted_data, &size, &offset); if (ret < 0) return ret; avio_write(pb, reformatted_data, size); } else { size = ff_av1_filter_obus(pb, pkt->data, pkt->size); if (trk->mode == MODE_AVIF && !mov->avif_extent_length[pkt->stream_index]) { mov->avif_extent_length[pkt->stream_index] = size; } } } else if (par->codec_id == AV_CODEC_ID_AC3 || par->codec_id == AV_CODEC_ID_EAC3) { size = handle_eac3(mov, pkt, trk); if (size < 0) return size; else if (!size) goto end; avio_write(pb, pkt->data, size); } else if (par->codec_id == AV_CODEC_ID_EIA_608) { size = 8; for (int i = 0; i < pkt->size; i += 3) { if (pkt->data[i] == 0xFC) { size += 2; } } avio_wb32(pb, size); ffio_wfourcc(pb, "cdat"); for (int i = 0; i < pkt->size; i += 3) { if (pkt->data[i] == 0xFC) { avio_w8(pb, pkt->data[i + 1]); avio_w8(pb, pkt->data[i + 2]); } } } else { if (trk->cenc.aes_ctr) { if (par->codec_id == AV_CODEC_ID_H264 && par->extradata_size > 4) { int nal_size_length = (par->extradata[4] & 0x3) + 1; ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size); } else if(par->codec_id == AV_CODEC_ID_HEVC && par->extradata_size > 21) { int nal_size_length = (par->extradata[21] & 0x3) + 1; ret = ff_mov_cenc_avc_write_nal_units(s, &trk->cenc, nal_size_length, pb, pkt->data, size); } else { ret = ff_mov_cenc_write_packet(&trk->cenc, pb, pkt->data, size); } if (ret) { goto err; } } else { avio_write(pb, pkt->data, size); } } if (trk->entry >= trk->cluster_capacity) { unsigned new_capacity = trk->entry + MOV_INDEX_CLUSTER_SIZE; void *cluster = av_realloc_array(trk->cluster, new_capacity, sizeof(*trk->cluster)); if (!cluster) { ret = AVERROR(ENOMEM); goto err; } trk->cluster = cluster; trk->cluster_capacity = new_capacity; } trk->cluster[trk->entry].pos = avio_tell(pb) - size; trk->cluster[trk->entry].samples_in_chunk = samples_in_chunk; trk->cluster[trk->entry].chunkNum = 0; trk->cluster[trk->entry].size = size; trk->cluster[trk->entry].entries = samples_in_chunk; trk->cluster[trk->entry].dts = pkt->dts; trk->cluster[trk->entry].pts = pkt->pts; if (!trk->squash_fragment_samples_to_one && !trk->entry && trk->start_dts != AV_NOPTS_VALUE) { if (!trk->frag_discont) { /* First packet of a new fragment. We already wrote the duration * of the last packet of the previous fragment based on track_duration, * which might not exactly match our dts. Therefore adjust the dts * of this packet to be what the previous packets duration implies. */ trk->cluster[trk->entry].dts = trk->start_dts + trk->track_duration; /* We also may have written the pts and the corresponding duration * in sidx/tfrf/tfxd tags; make sure the sidx pts and duration match up with * the next fragment. This means the cts of the first sample must * be the same in all fragments, unless end_pts was updated by * the packet causing the fragment to be written. */ if ((mov->flags & FF_MOV_FLAG_DASH && !(mov->flags & (FF_MOV_FLAG_GLOBAL_SIDX | FF_MOV_FLAG_SKIP_SIDX))) || mov->mode == MODE_ISM) pkt->pts = pkt->dts + trk->end_pts - trk->cluster[trk->entry].dts; } else { /* New fragment, but discontinuous from previous fragments. * Pretend the duration sum of the earlier fragments is * pkt->dts - trk->start_dts. */ trk->end_pts = AV_NOPTS_VALUE; trk->frag_discont = 0; } } if (!trk->entry && trk->start_dts == AV_NOPTS_VALUE && !mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) { /* Not using edit lists and shifting the first track to start from zero. * If the other streams start from a later timestamp, we won't be able * to signal the difference in starting time without an edit list. * Thus move the timestamp for this first sample to 0, increasing * its duration instead. */ trk->cluster[trk->entry].dts = trk->start_dts = 0; } if (trk->start_dts == AV_NOPTS_VALUE) { trk->start_dts = pkt->dts; if (trk->frag_discont) { if (mov->use_editlist) { /* Pretend the whole stream started at pts=0, with earlier fragments * already written. If the stream started at pts=0, the duration sum * of earlier fragments would have been pkt->pts. */ trk->start_dts = pkt->dts - pkt->pts; } else { /* Pretend the whole stream started at dts=0, with earlier fragments * already written, with a duration summing up to pkt->dts. */ trk->start_dts = 0; } trk->frag_discont = 0; } else if (pkt->dts && mov->moov_written) av_log(s, AV_LOG_WARNING, "Track %d starts with a nonzero dts %"PRId64", while the moov " "already has been written. Set the delay_moov flag to handle " "this case.\n", pkt->stream_index, pkt->dts); } trk->track_duration = pkt->dts - trk->start_dts + pkt->duration; trk->last_sample_is_subtitle_end = 0; if (pkt->pts == AV_NOPTS_VALUE) { av_log(s, AV_LOG_WARNING, "pts has no value\n"); pkt->pts = pkt->dts; } if (pkt->dts != pkt->pts) trk->flags |= MOV_TRACK_CTTS; trk->cluster[trk->entry].cts = pkt->pts - pkt->dts; trk->cluster[trk->entry].flags = 0; if (trk->start_cts == AV_NOPTS_VALUE) trk->start_cts = pkt->pts - pkt->dts; if (trk->end_pts == AV_NOPTS_VALUE) trk->end_pts = trk->cluster[trk->entry].dts + trk->cluster[trk->entry].cts + pkt->duration; else trk->end_pts = FFMAX(trk->end_pts, trk->cluster[trk->entry].dts + trk->cluster[trk->entry].cts + pkt->duration); if (par->codec_id == AV_CODEC_ID_VC1) { mov_parse_vc1_frame(pkt, trk); } else if (par->codec_id == AV_CODEC_ID_TRUEHD) { mov_parse_truehd_frame(pkt, trk); } else if (pkt->flags & AV_PKT_FLAG_KEY) { if (mov->mode == MODE_MOV && par->codec_id == AV_CODEC_ID_MPEG2VIDEO && trk->entry > 0) { // force sync sample for the first key frame mov_parse_mpeg2_frame(pkt, &trk->cluster[trk->entry].flags); if (trk->cluster[trk->entry].flags & MOV_PARTIAL_SYNC_SAMPLE) trk->flags |= MOV_TRACK_STPS; } else { trk->cluster[trk->entry].flags = MOV_SYNC_SAMPLE; } if (trk->cluster[trk->entry].flags & MOV_SYNC_SAMPLE) trk->has_keyframes++; } if (pkt->flags & AV_PKT_FLAG_DISPOSABLE) { trk->cluster[trk->entry].flags |= MOV_DISPOSABLE_SAMPLE; trk->has_disposable++; } prft = (AVProducerReferenceTime *)av_packet_get_side_data(pkt, AV_PKT_DATA_PRFT, &prft_size); if (prft && prft_size == sizeof(AVProducerReferenceTime)) memcpy(&trk->cluster[trk->entry].prft, prft, prft_size); else memset(&trk->cluster[trk->entry].prft, 0, sizeof(AVProducerReferenceTime)); trk->entry++; trk->sample_count += samples_in_chunk; mov->mdat_size += size; if (trk->hint_track >= 0 && trk->hint_track < mov->nb_streams) ff_mov_add_hinted_packet(s, pkt, trk->hint_track, trk->entry, reformatted_data ? reformatted_data + offset : NULL, size); end: err: if (pkt->data != reformatted_data) av_free(reformatted_data); return ret; } static int mov_write_single_packet(AVFormatContext *s, AVPacket *pkt) { MOVMuxContext *mov = s->priv_data; MOVTrack *trk = &mov->tracks[pkt->stream_index]; AVCodecParameters *par = trk->par; int64_t frag_duration = 0; int size = pkt->size; int ret = check_pkt(s, pkt); if (ret < 0) return ret; if (mov->flags & FF_MOV_FLAG_FRAG_DISCONT) { int i; for (i = 0; i < s->nb_streams; i++) mov->tracks[i].frag_discont = 1; mov->flags &= ~FF_MOV_FLAG_FRAG_DISCONT; } if (mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS) { if (trk->dts_shift == AV_NOPTS_VALUE) trk->dts_shift = pkt->pts - pkt->dts; pkt->dts += trk->dts_shift; } if (trk->par->codec_id == AV_CODEC_ID_MP4ALS || trk->par->codec_id == AV_CODEC_ID_AAC || trk->par->codec_id == AV_CODEC_ID_AV1 || trk->par->codec_id == AV_CODEC_ID_FLAC) { size_t side_size; uint8_t *side = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA, &side_size); if (side && side_size > 0 && (side_size != par->extradata_size || memcmp(side, par->extradata, side_size))) { void *newextra = av_mallocz(side_size + AV_INPUT_BUFFER_PADDING_SIZE); if (!newextra) return AVERROR(ENOMEM); av_free(par->extradata); par->extradata = newextra; memcpy(par->extradata, side, side_size); par->extradata_size = side_size; if (!pkt->size) // Flush packet mov->need_rewrite_extradata = 1; } } if (!pkt->size) { if (trk->start_dts == AV_NOPTS_VALUE && trk->frag_discont) { trk->start_dts = pkt->dts; if (pkt->pts != AV_NOPTS_VALUE) trk->start_cts = pkt->pts - pkt->dts; else trk->start_cts = 0; } return 0; /* Discard 0 sized packets */ } if (trk->entry && pkt->stream_index < s->nb_streams) frag_duration = av_rescale_q(pkt->dts - trk->cluster[0].dts, s->streams[pkt->stream_index]->time_base, AV_TIME_BASE_Q); if ((mov->max_fragment_duration && frag_duration >= mov->max_fragment_duration) || (mov->max_fragment_size && mov->mdat_size + size >= mov->max_fragment_size) || (mov->flags & FF_MOV_FLAG_FRAG_KEYFRAME && par->codec_type == AVMEDIA_TYPE_VIDEO && trk->entry && pkt->flags & AV_PKT_FLAG_KEY) || (mov->flags & FF_MOV_FLAG_FRAG_EVERY_FRAME)) { if (frag_duration >= mov->min_fragment_duration) { if (trk->entry) { // Set the duration of this track to line up with the next // sample in this track. This avoids relying on AVPacket // duration, but only helps for this particular track, not // for the other ones that are flushed at the same time. // // If we have trk->entry == 0, no fragment will be written // for this track, and we can't adjust the track end here. trk->track_duration = pkt->dts - trk->start_dts; if (pkt->pts != AV_NOPTS_VALUE) trk->end_pts = pkt->pts; else trk->end_pts = pkt->dts; trk->end_reliable = 1; } mov_auto_flush_fragment(s, 0); } } return ff_mov_write_packet(s, pkt); } static int mov_write_subtitle_end_packet(AVFormatContext *s, int stream_index, int64_t dts) { MOVMuxContext *mov = s->priv_data; AVPacket *end = mov->pkt; uint8_t data[2] = {0}; int ret; end->size = sizeof(data); end->data = data; end->pts = dts; end->dts = dts; end->duration = 0; end->stream_index = stream_index; ret = mov_write_single_packet(s, end); av_packet_unref(end); return ret; } static int mov_write_packet(AVFormatContext *s, AVPacket *pkt) { MOVMuxContext *mov = s->priv_data; MOVTrack *trk; if (!pkt) { mov_flush_fragment(s, 1); return 1; } trk = &mov->tracks[pkt->stream_index]; if (is_cover_image(trk->st)) { int ret; if (trk->st->nb_frames >= 1) { if (trk->st->nb_frames == 1) av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d," " ignoring.\n", pkt->stream_index); return 0; } if ((ret = av_packet_ref(trk->cover_image, pkt)) < 0) return ret; return 0; } else { int i; if (!pkt->size) return mov_write_single_packet(s, pkt); /* Passthrough. */ /* * Subtitles require special handling. * * 1) For full complaince, every track must have a sample at * dts == 0, which is rarely true for subtitles. So, as soon * as we see any packet with dts > 0, write an empty subtitle * at dts == 0 for any subtitle track with no samples in it. * * 2) For each subtitle track, check if the current packet's * dts is past the duration of the last subtitle sample. If * so, we now need to write an end sample for that subtitle. * * This must be done conditionally to allow for subtitles that * immediately replace each other, in which case an end sample * is not needed, and is, in fact, actively harmful. * * 3) See mov_write_trailer for how the final end sample is * handled. */ for (i = 0; i < mov->nb_streams; i++) { MOVTrack *trk = &mov->tracks[i]; int ret; if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT && trk->track_duration < pkt->dts && (trk->entry == 0 || !trk->last_sample_is_subtitle_end)) { ret = mov_write_subtitle_end_packet(s, i, trk->track_duration); if (ret < 0) return ret; trk->last_sample_is_subtitle_end = 1; } } if (trk->squash_fragment_samples_to_one) { /* * If the track has to have its samples squashed into one sample, * we just take it into the track's queue. * This will then be utilized as the samples get written in either * mov_flush_fragment or when the mux is finalized in * mov_write_trailer. */ int ret = AVERROR_BUG; if (pkt->pts == AV_NOPTS_VALUE) { av_log(s, AV_LOG_ERROR, "Packets without a valid presentation timestamp are " "not supported with packet squashing!\n"); return AVERROR(EINVAL); } /* The following will reset pkt and is only allowed to be used * because we return immediately. afterwards. */ if ((ret = avpriv_packet_list_put(&trk->squashed_packet_queue, pkt, NULL, 0)) < 0) { return ret; } return 0; } if (trk->mode == MODE_MOV && trk->par->codec_type == AVMEDIA_TYPE_VIDEO) { AVPacket *opkt = pkt; int reshuffle_ret, ret; if (trk->is_unaligned_qt_rgb) { int64_t bpc = trk->par->bits_per_coded_sample != 15 ? trk->par->bits_per_coded_sample : 16; int expected_stride = ((trk->par->width * bpc + 15) >> 4)*2; reshuffle_ret = ff_reshuffle_raw_rgb(s, &pkt, trk->par, expected_stride); if (reshuffle_ret < 0) return reshuffle_ret; } else reshuffle_ret = 0; if (trk->par->format == AV_PIX_FMT_PAL8 && !trk->pal_done) { ret = ff_get_packet_palette(s, opkt, reshuffle_ret, trk->palette); if (ret < 0) goto fail; if (ret) trk->pal_done++; } else if (trk->par->codec_id == AV_CODEC_ID_RAWVIDEO && (trk->par->format == AV_PIX_FMT_GRAY8 || trk->par->format == AV_PIX_FMT_MONOBLACK)) { ret = av_packet_make_writable(pkt); if (ret < 0) goto fail; for (i = 0; i < pkt->size; i++) pkt->data[i] = ~pkt->data[i]; } if (reshuffle_ret) { ret = mov_write_single_packet(s, pkt); fail: if (reshuffle_ret) av_packet_free(&pkt); return ret; } } return mov_write_single_packet(s, pkt); } } // QuickTime chapters involve an additional text track with the chapter names // as samples, and a tref pointing from the other tracks to the chapter one. static int mov_create_chapter_track(AVFormatContext *s, int tracknum) { static const uint8_t stub_header[] = { // TextSampleEntry 0x00, 0x00, 0x00, 0x01, // displayFlags 0x00, 0x00, // horizontal + vertical justification 0x00, 0x00, 0x00, 0x00, // bgColourRed/Green/Blue/Alpha // BoxRecord 0x00, 0x00, 0x00, 0x00, // defTextBoxTop/Left 0x00, 0x00, 0x00, 0x00, // defTextBoxBottom/Right // StyleRecord 0x00, 0x00, 0x00, 0x00, // startChar + endChar 0x00, 0x01, // fontID 0x00, 0x00, // fontStyleFlags + fontSize 0x00, 0x00, 0x00, 0x00, // fgColourRed/Green/Blue/Alpha // FontTableBox 0x00, 0x00, 0x00, 0x0D, // box size 'f', 't', 'a', 'b', // box atom name 0x00, 0x01, // entry count // FontRecord 0x00, 0x01, // font ID 0x00, // font name length }; MOVMuxContext *mov = s->priv_data; MOVTrack *track = &mov->tracks[tracknum]; AVPacket *pkt = mov->pkt; int i, len; int ret; track->mode = mov->mode; track->tag = MKTAG('t','e','x','t'); track->timescale = mov->movie_timescale; track->par = avcodec_parameters_alloc(); if (!track->par) return AVERROR(ENOMEM); track->par->codec_type = AVMEDIA_TYPE_SUBTITLE; ret = ff_alloc_extradata(track->par, sizeof(stub_header)); if (ret < 0) return ret; memcpy(track->par->extradata, stub_header, sizeof(stub_header)); pkt->stream_index = tracknum; pkt->flags = AV_PKT_FLAG_KEY; for (i = 0; i < s->nb_chapters; i++) { AVChapter *c = s->chapters[i]; AVDictionaryEntry *t; int64_t end = av_rescale_q(c->end, c->time_base, (AVRational){1,mov->movie_timescale}); pkt->pts = pkt->dts = av_rescale_q(c->start, c->time_base, (AVRational){1,mov->movie_timescale}); pkt->duration = end - pkt->dts; if ((t = av_dict_get(c->metadata, "title", NULL, 0))) { static const char encd[12] = { 0x00, 0x00, 0x00, 0x0C, 'e', 'n', 'c', 'd', 0x00, 0x00, 0x01, 0x00 }; len = strlen(t->value); pkt->size = len + 2 + 12; pkt->data = av_malloc(pkt->size); if (!pkt->data) { av_packet_unref(pkt); return AVERROR(ENOMEM); } AV_WB16(pkt->data, len); memcpy(pkt->data + 2, t->value, len); memcpy(pkt->data + len + 2, encd, sizeof(encd)); ff_mov_write_packet(s, pkt); av_freep(&pkt->data); } } av_packet_unref(mov->pkt); return 0; } static int mov_check_timecode_track(AVFormatContext *s, AVTimecode *tc, int src_index, const char *tcstr) { int ret; /* compute the frame number */ ret = av_timecode_init_from_string(tc, s->streams[src_index]->avg_frame_rate, tcstr, s); return ret; } static int mov_create_timecode_track(AVFormatContext *s, int index, int src_index, AVTimecode tc) { MOVMuxContext *mov = s->priv_data; MOVTrack *track = &mov->tracks[index]; AVStream *src_st = s->streams[src_index]; uint8_t data[4]; AVPacket *pkt = mov->pkt; AVRational rate = src_st->avg_frame_rate; int ret; /* tmcd track based on video stream */ track->mode = mov->mode; track->tag = MKTAG('t','m','c','d'); track->src_track = src_index; track->timescale = mov->tracks[src_index].timescale; if (tc.flags & AV_TIMECODE_FLAG_DROPFRAME) track->timecode_flags |= MOV_TIMECODE_FLAG_DROPFRAME; /* set st to src_st for metadata access*/ track->st = src_st; /* encode context: tmcd data stream */ track->par = avcodec_parameters_alloc(); if (!track->par) return AVERROR(ENOMEM); track->par->codec_type = AVMEDIA_TYPE_DATA; track->par->codec_tag = track->tag; track->st->avg_frame_rate = rate; /* the tmcd track just contains one packet with the frame number */ pkt->data = data; pkt->stream_index = index; pkt->flags = AV_PKT_FLAG_KEY; pkt->pts = pkt->dts = av_rescale_q(tc.start, av_inv_q(rate), (AVRational){1,mov->movie_timescale}); pkt->size = 4; AV_WB32(pkt->data, tc.start); ret = ff_mov_write_packet(s, pkt); av_packet_unref(pkt); return ret; } /* * st->disposition controls the "enabled" flag in the tkhd tag. * QuickTime will not play a track if it is not enabled. So make sure * that one track of each type (audio, video, subtitle) is enabled. * * Subtitles are special. For audio and video, setting "enabled" also * makes the track "default" (i.e. it is rendered when played). For * subtitles, an "enabled" subtitle is not rendered by default, but * if no subtitle is enabled, the subtitle menu in QuickTime will be * empty! */ static void enable_tracks(AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int i; int enabled[AVMEDIA_TYPE_NB]; int first[AVMEDIA_TYPE_NB]; for (i = 0; i < AVMEDIA_TYPE_NB; i++) { enabled[i] = 0; first[i] = -1; } for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; if (st->codecpar->codec_type <= AVMEDIA_TYPE_UNKNOWN || st->codecpar->codec_type >= AVMEDIA_TYPE_NB || is_cover_image(st)) continue; if (first[st->codecpar->codec_type] < 0) first[st->codecpar->codec_type] = i; if (st->disposition & AV_DISPOSITION_DEFAULT) { mov->tracks[i].flags |= MOV_TRACK_ENABLED; enabled[st->codecpar->codec_type]++; } } for (i = 0; i < AVMEDIA_TYPE_NB; i++) { switch (i) { case AVMEDIA_TYPE_VIDEO: case AVMEDIA_TYPE_AUDIO: case AVMEDIA_TYPE_SUBTITLE: if (enabled[i] > 1) mov->per_stream_grouping = 1; if (!enabled[i] && first[i] >= 0) mov->tracks[first[i]].flags |= MOV_TRACK_ENABLED; break; } } } static void mov_free(AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int i; if (!mov->tracks) return; if (mov->chapter_track) { avcodec_parameters_free(&mov->tracks[mov->chapter_track].par); } for (i = 0; i < mov->nb_streams; i++) { MOVTrack *const track = &mov->tracks[i]; if (track->tag == MKTAG('r','t','p',' ')) ff_mov_close_hinting(track); else if (track->tag == MKTAG('t','m','c','d') && mov->nb_meta_tmcd) av_freep(&track->par); av_freep(&track->cluster); av_freep(&track->frag_info); av_packet_free(&track->cover_image); if (track->eac3_priv) { struct eac3_info *info = track->eac3_priv; av_packet_free(&info->pkt); av_freep(&track->eac3_priv); } if (track->vos_len) av_freep(&track->vos_data); ff_mov_cenc_free(&track->cenc); ffio_free_dyn_buf(&track->mdat_buf); avpriv_packet_list_free(&track->squashed_packet_queue); } av_freep(&mov->tracks); ffio_free_dyn_buf(&mov->mdat_buf); } static uint32_t rgb_to_yuv(uint32_t rgb) { uint8_t r, g, b; int y, cb, cr; r = (rgb >> 16) & 0xFF; g = (rgb >> 8) & 0xFF; b = (rgb ) & 0xFF; y = av_clip_uint8(( 16000 + 257 * r + 504 * g + 98 * b)/1000); cb = av_clip_uint8((128000 - 148 * r - 291 * g + 439 * b)/1000); cr = av_clip_uint8((128000 + 439 * r - 368 * g - 71 * b)/1000); return (y << 16) | (cr << 8) | cb; } static int mov_create_dvd_sub_decoder_specific_info(MOVTrack *track, AVStream *st) { int i, width = 720, height = 480; int have_palette = 0, have_size = 0; uint32_t palette[16]; char *cur = st->codecpar->extradata; while (cur && *cur) { if (strncmp("palette:", cur, 8) == 0) { int i, count; count = sscanf(cur + 8, "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", " "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", " "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32", " "%06"PRIx32", %06"PRIx32", %06"PRIx32", %06"PRIx32"", &palette[ 0], &palette[ 1], &palette[ 2], &palette[ 3], &palette[ 4], &palette[ 5], &palette[ 6], &palette[ 7], &palette[ 8], &palette[ 9], &palette[10], &palette[11], &palette[12], &palette[13], &palette[14], &palette[15]); for (i = 0; i < count; i++) { palette[i] = rgb_to_yuv(palette[i]); } have_palette = 1; } else if (!strncmp("size:", cur, 5)) { sscanf(cur + 5, "%dx%d", &width, &height); have_size = 1; } if (have_palette && have_size) break; cur += strcspn(cur, "\n\r"); cur += strspn(cur, "\n\r"); } if (have_palette) { track->vos_data = av_malloc(16*4 + AV_INPUT_BUFFER_PADDING_SIZE); if (!track->vos_data) return AVERROR(ENOMEM); for (i = 0; i < 16; i++) { AV_WB32(track->vos_data + i * 4, palette[i]); } memset(track->vos_data + 16*4, 0, AV_INPUT_BUFFER_PADDING_SIZE); track->vos_len = 16 * 4; } st->codecpar->width = width; st->codecpar->height = track->height = height; return 0; } static int mov_init(AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; int i, ret; mov->fc = s; mov->pkt = ffformatcontext(s)->pkt; /* Default mode == MP4 */ mov->mode = MODE_MP4; #define IS_MODE(muxer, config) (CONFIG_ ## config ## _MUXER && !strcmp(#muxer, s->oformat->name)) if (IS_MODE(3gp, TGP)) mov->mode = MODE_3GP; else if (IS_MODE(3g2, TG2)) mov->mode = MODE_3GP|MODE_3G2; else if (IS_MODE(mov, MOV)) mov->mode = MODE_MOV; else if (IS_MODE(psp, PSP)) mov->mode = MODE_PSP; else if (IS_MODE(ipod, IPOD)) mov->mode = MODE_IPOD; else if (IS_MODE(ismv, ISMV)) mov->mode = MODE_ISM; else if (IS_MODE(f4v, F4V)) mov->mode = MODE_F4V; else if (IS_MODE(avif, AVIF)) mov->mode = MODE_AVIF; #undef IS_MODE if (mov->flags & FF_MOV_FLAG_DELAY_MOOV) mov->flags |= FF_MOV_FLAG_EMPTY_MOOV; if (mov->mode == MODE_AVIF) mov->flags |= FF_MOV_FLAG_DELAY_MOOV; /* Set the FRAGMENT flag if any of the fragmentation methods are * enabled. */ if (mov->max_fragment_duration || mov->max_fragment_size || mov->flags & (FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_FRAG_KEYFRAME | FF_MOV_FLAG_FRAG_CUSTOM | FF_MOV_FLAG_FRAG_EVERY_FRAME)) mov->flags |= FF_MOV_FLAG_FRAGMENT; /* Set other implicit flags immediately */ if (mov->mode == MODE_ISM) mov->flags |= FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_SEPARATE_MOOF | FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS; if (mov->flags & FF_MOV_FLAG_DASH) mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_DEFAULT_BASE_MOOF; if (mov->flags & FF_MOV_FLAG_CMAF) mov->flags |= FF_MOV_FLAG_FRAGMENT | FF_MOV_FLAG_EMPTY_MOOV | FF_MOV_FLAG_DEFAULT_BASE_MOOF | FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS; if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && s->flags & AVFMT_FLAG_AUTO_BSF) { av_log(s, AV_LOG_VERBOSE, "Empty MOOV enabled; disabling automatic bitstream filtering\n"); s->flags &= ~AVFMT_FLAG_AUTO_BSF; } if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX && mov->flags & FF_MOV_FLAG_SKIP_SIDX) { av_log(s, AV_LOG_WARNING, "Global SIDX enabled; Ignoring skip_sidx option\n"); mov->flags &= ~FF_MOV_FLAG_SKIP_SIDX; } if (mov->flags & FF_MOV_FLAG_FASTSTART) { mov->reserved_moov_size = -1; } if (mov->use_editlist < 0) { mov->use_editlist = 1; if (mov->flags & FF_MOV_FLAG_FRAGMENT && !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) { // If we can avoid needing an edit list by shifting the // tracks, prefer that over (trying to) write edit lists // in fragmented output. if (s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO || s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_MAKE_ZERO) mov->use_editlist = 0; } if (mov->flags & FF_MOV_FLAG_CMAF) { // CMAF Track requires negative cts offsets without edit lists mov->use_editlist = 0; } } if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && !(mov->flags & FF_MOV_FLAG_DELAY_MOOV) && mov->use_editlist) av_log(s, AV_LOG_WARNING, "No meaningful edit list will be written when using empty_moov without delay_moov\n"); if (mov->flags & FF_MOV_FLAG_CMAF && mov->use_editlist) { av_log(s, AV_LOG_WARNING, "Edit list enabled; Assuming writing CMAF Track File\n"); mov->flags &= ~FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS; } if (!mov->use_editlist && s->avoid_negative_ts == AVFMT_AVOID_NEG_TS_AUTO && !(mov->flags & FF_MOV_FLAG_NEGATIVE_CTS_OFFSETS)) s->avoid_negative_ts = AVFMT_AVOID_NEG_TS_MAKE_ZERO; /* Clear the omit_tfhd_offset flag if default_base_moof is set; * if the latter is set that's enough and omit_tfhd_offset doesn't * add anything extra on top of that. */ if (mov->flags & FF_MOV_FLAG_OMIT_TFHD_OFFSET && mov->flags & FF_MOV_FLAG_DEFAULT_BASE_MOOF) mov->flags &= ~FF_MOV_FLAG_OMIT_TFHD_OFFSET; if (mov->frag_interleave && mov->flags & (FF_MOV_FLAG_OMIT_TFHD_OFFSET | FF_MOV_FLAG_SEPARATE_MOOF)) { av_log(s, AV_LOG_ERROR, "Sample interleaving in fragments is mutually exclusive with " "omit_tfhd_offset and separate_moof\n"); return AVERROR(EINVAL); } /* Non-seekable output is ok if using fragmentation. If ism_lookahead * is enabled, we don't support non-seekable output at all. */ if (!(s->pb->seekable & AVIO_SEEKABLE_NORMAL) && (!(mov->flags & FF_MOV_FLAG_FRAGMENT) || mov->ism_lookahead || mov->mode == MODE_AVIF)) { av_log(s, AV_LOG_ERROR, "muxer does not support non seekable output\n"); return AVERROR(EINVAL); } /* AVIF output must have at most two video streams (one for YUV and one for * alpha). */ if (mov->mode == MODE_AVIF) { if (s->nb_streams > 2) { av_log(s, AV_LOG_ERROR, "AVIF output requires exactly one or two streams\n"); return AVERROR(EINVAL); } if (s->streams[0]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO && (s->nb_streams > 1 && s->streams[1]->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)) { av_log(s, AV_LOG_ERROR, "AVIF output supports only video streams\n"); return AVERROR(EINVAL); } if (s->nb_streams > 1) { const AVPixFmtDescriptor *pixdesc = av_pix_fmt_desc_get(s->streams[1]->codecpar->format); if (pixdesc->nb_components != 1) { av_log(s, AV_LOG_ERROR, "Second stream for AVIF (alpha) output must have exactly one plane\n"); return AVERROR(EINVAL); } } s->streams[0]->disposition |= AV_DISPOSITION_DEFAULT; } mov->nb_streams = s->nb_streams; if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) mov->chapter_track = mov->nb_streams++; if (mov->flags & FF_MOV_FLAG_RTP_HINT) { for (i = 0; i < s->nb_streams; i++) if (rtp_hinting_needed(s->streams[i])) mov->nb_streams++; } if (mov->write_btrt < 0) { mov->write_btrt = mov->mode == MODE_MP4; } if ( mov->write_tmcd == -1 && (mov->mode == MODE_MOV || mov->mode == MODE_MP4) || mov->write_tmcd == 1) { AVDictionaryEntry *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0); /* +1 tmcd track for each video stream with a timecode */ for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; AVDictionaryEntry *t = global_tcr; if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && (t || (t=av_dict_get(st->metadata, "timecode", NULL, 0)))) { AVTimecode tc; ret = mov_check_timecode_track(s, &tc, i, t->value); if (ret >= 0) mov->nb_meta_tmcd++; } } /* check if there is already a tmcd track to remux */ if (mov->nb_meta_tmcd) { for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; if (st->codecpar->codec_tag == MKTAG('t','m','c','d')) { av_log(s, AV_LOG_WARNING, "You requested a copy of the original timecode track " "so timecode metadata are now ignored\n"); mov->nb_meta_tmcd = 0; } } } mov->nb_streams += mov->nb_meta_tmcd; } // Reserve an extra stream for chapters for the case where chapters // are written in the trailer mov->tracks = av_calloc(mov->nb_streams + 1, sizeof(*mov->tracks)); if (!mov->tracks) return AVERROR(ENOMEM); if (mov->encryption_scheme_str != NULL && strcmp(mov->encryption_scheme_str, "none") != 0) { if (strcmp(mov->encryption_scheme_str, "cenc-aes-ctr") == 0) { mov->encryption_scheme = MOV_ENC_CENC_AES_CTR; if (mov->encryption_key_len != AES_CTR_KEY_SIZE) { av_log(s, AV_LOG_ERROR, "Invalid encryption key len %d expected %d\n", mov->encryption_key_len, AES_CTR_KEY_SIZE); return AVERROR(EINVAL); } if (mov->encryption_kid_len != CENC_KID_SIZE) { av_log(s, AV_LOG_ERROR, "Invalid encryption kid len %d expected %d\n", mov->encryption_kid_len, CENC_KID_SIZE); return AVERROR(EINVAL); } } else { av_log(s, AV_LOG_ERROR, "unsupported encryption scheme %s\n", mov->encryption_scheme_str); return AVERROR(EINVAL); } } for (i = 0; i < s->nb_streams; i++) { AVStream *st= s->streams[i]; MOVTrack *track= &mov->tracks[i]; AVDictionaryEntry *lang = av_dict_get(st->metadata, "language", NULL,0); track->st = st; track->par = st->codecpar; track->language = ff_mov_iso639_to_lang(lang?lang->value:"und", mov->mode!=MODE_MOV); if (track->language < 0) track->language = 32767; // Unspecified Macintosh language code track->mode = mov->mode; track->tag = mov_find_codec_tag(s, track); if (!track->tag) { av_log(s, AV_LOG_ERROR, "Could not find tag for codec %s in stream #%d, " "codec not currently supported in container\n", avcodec_get_name(st->codecpar->codec_id), i); return AVERROR(EINVAL); } /* If hinting of this track is enabled by a later hint track, * this is updated. */ track->hint_track = -1; track->start_dts = AV_NOPTS_VALUE; track->start_cts = AV_NOPTS_VALUE; track->end_pts = AV_NOPTS_VALUE; track->dts_shift = AV_NOPTS_VALUE; if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { if (track->tag == MKTAG('m','x','3','p') || track->tag == MKTAG('m','x','3','n') || track->tag == MKTAG('m','x','4','p') || track->tag == MKTAG('m','x','4','n') || track->tag == MKTAG('m','x','5','p') || track->tag == MKTAG('m','x','5','n')) { if (st->codecpar->width != 720 || (st->codecpar->height != 608 && st->codecpar->height != 512)) { av_log(s, AV_LOG_ERROR, "D-10/IMX must use 720x608 or 720x512 video resolution\n"); return AVERROR(EINVAL); } track->height = track->tag >> 24 == 'n' ? 486 : 576; } if (mov->video_track_timescale) { track->timescale = mov->video_track_timescale; if (mov->mode == MODE_ISM && mov->video_track_timescale != 10000000) av_log(s, AV_LOG_WARNING, "Warning: some tools, like mp4split, assume a timescale of 10000000 for ISMV.\n"); } else { track->timescale = st->time_base.den; while(track->timescale < 10000) track->timescale *= 2; } if (st->codecpar->width > 65535 || st->codecpar->height > 65535) { av_log(s, AV_LOG_ERROR, "Resolution %dx%d too large for mov/mp4\n", st->codecpar->width, st->codecpar->height); return AVERROR(EINVAL); } if (track->mode == MODE_MOV && track->timescale > 100000) av_log(s, AV_LOG_WARNING, "WARNING codec timebase is very high. If duration is too long,\n" "file may not be playable by quicktime. Specify a shorter timebase\n" "or choose different container.\n"); if (track->mode == MODE_MOV && track->par->codec_id == AV_CODEC_ID_RAWVIDEO && track->tag == MKTAG('r','a','w',' ')) { enum AVPixelFormat pix_fmt = track->par->format; if (pix_fmt == AV_PIX_FMT_NONE && track->par->bits_per_coded_sample == 1) pix_fmt = AV_PIX_FMT_MONOWHITE; track->is_unaligned_qt_rgb = pix_fmt == AV_PIX_FMT_RGB24 || pix_fmt == AV_PIX_FMT_BGR24 || pix_fmt == AV_PIX_FMT_PAL8 || pix_fmt == AV_PIX_FMT_GRAY8 || pix_fmt == AV_PIX_FMT_MONOWHITE || pix_fmt == AV_PIX_FMT_MONOBLACK; } if (track->par->codec_id == AV_CODEC_ID_VP9 && track->mode != MODE_MP4) { av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id)); return AVERROR(EINVAL); } else if (track->par->codec_id == AV_CODEC_ID_AV1 && track->mode != MODE_MP4 && track->mode != MODE_AVIF) { av_log(s, AV_LOG_ERROR, "%s only supported in MP4 and AVIF.\n", avcodec_get_name(track->par->codec_id)); return AVERROR(EINVAL); } else if (track->par->codec_id == AV_CODEC_ID_VP8) { /* altref frames handling is not defined in the spec as of version v1.0, * so just forbid muxing VP8 streams altogether until a new version does */ av_log(s, AV_LOG_ERROR, "VP8 muxing is currently not supported.\n"); return AVERROR_PATCHWELCOME; } if (is_cover_image(st)) { track->cover_image = av_packet_alloc(); if (!track->cover_image) return AVERROR(ENOMEM); } } else if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) { track->timescale = st->codecpar->sample_rate; if (!st->codecpar->frame_size && !av_get_bits_per_sample(st->codecpar->codec_id)) { av_log(s, AV_LOG_WARNING, "track %d: codec frame size is not set\n", i); track->audio_vbr = 1; }else if (st->codecpar->codec_id == AV_CODEC_ID_ADPCM_MS || st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_WAV || st->codecpar->codec_id == AV_CODEC_ID_ILBC){ if (!st->codecpar->block_align) { av_log(s, AV_LOG_ERROR, "track %d: codec block align is not set for adpcm\n", i); return AVERROR(EINVAL); } track->sample_size = st->codecpar->block_align; }else if (st->codecpar->frame_size > 1){ /* assume compressed audio */ track->audio_vbr = 1; }else{ track->sample_size = (av_get_bits_per_sample(st->codecpar->codec_id) >> 3) * st->codecpar->ch_layout.nb_channels; } if (st->codecpar->codec_id == AV_CODEC_ID_ILBC || st->codecpar->codec_id == AV_CODEC_ID_ADPCM_IMA_QT) { track->audio_vbr = 1; } if (track->mode != MODE_MOV && track->par->codec_id == AV_CODEC_ID_MP3 && track->timescale < 16000) { if (s->strict_std_compliance >= FF_COMPLIANCE_NORMAL) { av_log(s, AV_LOG_ERROR, "track %d: muxing mp3 at %dhz is not standard, to mux anyway set strict to -1\n", i, track->par->sample_rate); return AVERROR(EINVAL); } else { av_log(s, AV_LOG_WARNING, "track %d: muxing mp3 at %dhz is not standard in MP4\n", i, track->par->sample_rate); } } if (track->par->codec_id == AV_CODEC_ID_FLAC || track->par->codec_id == AV_CODEC_ID_TRUEHD || track->par->codec_id == AV_CODEC_ID_OPUS) { if (track->mode != MODE_MP4) { av_log(s, AV_LOG_ERROR, "%s only supported in MP4.\n", avcodec_get_name(track->par->codec_id)); return AVERROR(EINVAL); } if (track->par->codec_id == AV_CODEC_ID_TRUEHD && s->strict_std_compliance > FF_COMPLIANCE_EXPERIMENTAL) { av_log(s, AV_LOG_ERROR, "%s in MP4 support is experimental, add " "'-strict %d' if you want to use it.\n", avcodec_get_name(track->par->codec_id), FF_COMPLIANCE_EXPERIMENTAL); return AVERROR_EXPERIMENTAL; } } } else if (st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) { track->timescale = st->time_base.den; if (track->par->codec_id == AV_CODEC_ID_TTML) { /* 14496-30 requires us to use a single sample per fragment for TTML, for which we define a per-track flag. We set the flag in case we are receiving TTML paragraphs from the input, in other words in case we are not doing stream copy. */ track->squash_fragment_samples_to_one = ff_is_ttml_stream_paragraph_based(track->par); if (mov->flags & FF_MOV_FLAG_FRAGMENT && track->squash_fragment_samples_to_one) { av_log(s, AV_LOG_ERROR, "Fragmentation is not currently supported for " "TTML in MP4/ISMV (track synchronization between " "subtitles and other media is not yet implemented)!\n"); return AVERROR_PATCHWELCOME; } if (track->mode != MODE_ISM && track->par->codec_tag == MOV_ISMV_TTML_TAG && s->strict_std_compliance > FF_COMPLIANCE_UNOFFICIAL) { av_log(s, AV_LOG_ERROR, "ISMV style TTML support with the 'dfxp' tag in " "non-ISMV formats is not officially supported. Add " "'-strict unofficial' if you want to use it.\n"); return AVERROR_EXPERIMENTAL; } } } else if (st->codecpar->codec_type == AVMEDIA_TYPE_DATA) { track->timescale = st->time_base.den; } else { track->timescale = mov->movie_timescale; } if (!track->height) track->height = st->codecpar->height; /* The Protected Interoperable File Format (PIFF) standard, used by ISMV recommends but doesn't mandate a track timescale of 10,000,000. The muxer allows a custom timescale for video tracks, so if user-set, it isn't overwritten */ if (mov->mode == MODE_ISM && (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO || (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !mov->video_track_timescale))) { track->timescale = 10000000; } avpriv_set_pts_info(st, 64, 1, track->timescale); if (mov->encryption_scheme == MOV_ENC_CENC_AES_CTR) { ret = ff_mov_cenc_init(&track->cenc, mov->encryption_key, (track->par->codec_id == AV_CODEC_ID_H264 || track->par->codec_id == AV_CODEC_ID_HEVC), s->flags & AVFMT_FLAG_BITEXACT); if (ret) return ret; } } enable_tracks(s); return 0; } static int mov_write_header(AVFormatContext *s) { AVIOContext *pb = s->pb; MOVMuxContext *mov = s->priv_data; int i, ret, hint_track = 0, tmcd_track = 0, nb_tracks = s->nb_streams; if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) nb_tracks++; if (mov->flags & FF_MOV_FLAG_RTP_HINT) { hint_track = nb_tracks; for (i = 0; i < s->nb_streams; i++) if (rtp_hinting_needed(s->streams[i])) nb_tracks++; } if (mov->nb_meta_tmcd) tmcd_track = nb_tracks; for (i = 0; i < s->nb_streams; i++) { int j; AVStream *st= s->streams[i]; MOVTrack *track= &mov->tracks[i]; /* copy extradata if it exists */ if (st->codecpar->extradata_size) { if (st->codecpar->codec_id == AV_CODEC_ID_DVD_SUBTITLE) mov_create_dvd_sub_decoder_specific_info(track, st); else if (!TAG_IS_AVCI(track->tag) && st->codecpar->codec_id != AV_CODEC_ID_DNXHD) { track->vos_len = st->codecpar->extradata_size; track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE); if (!track->vos_data) { return AVERROR(ENOMEM); } memcpy(track->vos_data, st->codecpar->extradata, track->vos_len); memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE); } } if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO || av_channel_layout_compare(&track->par->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO)) continue; for (j = 0; j < s->nb_streams; j++) { AVStream *stj= s->streams[j]; MOVTrack *trackj= &mov->tracks[j]; if (j == i) continue; if (stj->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && (trackj->par->ch_layout.nb_channels != 1 || !av_channel_layout_compare(&trackj->par->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO)) ) track->mono_as_fc = -1; if (stj->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && av_channel_layout_compare(&trackj->par->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO) && trackj->par->ch_layout.nb_channels == 1 && track->mono_as_fc >= 0 ) track->mono_as_fc++; if (stj->codecpar->codec_type != AVMEDIA_TYPE_AUDIO || av_channel_layout_compare(&trackj->par->ch_layout, &(AVChannelLayout)AV_CHANNEL_LAYOUT_MONO) || trackj->language != track->language || trackj->tag != track->tag ) continue; track->multichannel_as_mono++; } } if (!(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) { if ((ret = mov_write_identification(pb, s)) < 0) return ret; } if (mov->reserved_moov_size){ mov->reserved_header_pos = avio_tell(pb); if (mov->reserved_moov_size > 0) avio_skip(pb, mov->reserved_moov_size); } if (mov->flags & FF_MOV_FLAG_FRAGMENT) { /* If no fragmentation options have been set, set a default. */ if (!(mov->flags & (FF_MOV_FLAG_FRAG_KEYFRAME | FF_MOV_FLAG_FRAG_CUSTOM | FF_MOV_FLAG_FRAG_EVERY_FRAME)) && !mov->max_fragment_duration && !mov->max_fragment_size) mov->flags |= FF_MOV_FLAG_FRAG_KEYFRAME; } else if (mov->mode != MODE_AVIF) { if (mov->flags & FF_MOV_FLAG_FASTSTART) mov->reserved_header_pos = avio_tell(pb); mov_write_mdat_tag(pb, mov); } ff_parse_creation_time_metadata(s, &mov->time, 1); if (mov->time) mov->time += 0x7C25B080; // 1970 based -> 1904 based if (mov->chapter_track) if ((ret = mov_create_chapter_track(s, mov->chapter_track)) < 0) return ret; if (mov->flags & FF_MOV_FLAG_RTP_HINT) { for (i = 0; i < s->nb_streams; i++) { if (rtp_hinting_needed(s->streams[i])) { if ((ret = ff_mov_init_hinting(s, hint_track, i)) < 0) return ret; hint_track++; } } } if (mov->nb_meta_tmcd) { const AVDictionaryEntry *t, *global_tcr = av_dict_get(s->metadata, "timecode", NULL, 0); /* Initialize the tmcd tracks */ for (i = 0; i < s->nb_streams; i++) { AVStream *st = s->streams[i]; t = global_tcr; if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) { AVTimecode tc; if (!t) t = av_dict_get(st->metadata, "timecode", NULL, 0); if (!t) continue; if (mov_check_timecode_track(s, &tc, i, t->value) < 0) continue; if ((ret = mov_create_timecode_track(s, tmcd_track, i, tc)) < 0) return ret; tmcd_track++; } } } avio_flush(pb); if (mov->flags & FF_MOV_FLAG_ISML) mov_write_isml_manifest(pb, mov, s); if (mov->flags & FF_MOV_FLAG_EMPTY_MOOV && !(mov->flags & FF_MOV_FLAG_DELAY_MOOV)) { if ((ret = mov_write_moov_tag(pb, mov, s)) < 0) return ret; mov->moov_written = 1; if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) mov->reserved_header_pos = avio_tell(pb); } return 0; } static int get_moov_size(AVFormatContext *s) { int ret; AVIOContext *moov_buf; MOVMuxContext *mov = s->priv_data; if ((ret = ffio_open_null_buf(&moov_buf)) < 0) return ret; if ((ret = mov_write_moov_tag(moov_buf, mov, s)) < 0) return ret; return ffio_close_null_buf(moov_buf); } static int get_sidx_size(AVFormatContext *s) { int ret; AVIOContext *buf; MOVMuxContext *mov = s->priv_data; if ((ret = ffio_open_null_buf(&buf)) < 0) return ret; mov_write_sidx_tags(buf, mov, -1, 0); return ffio_close_null_buf(buf); } /* * This function gets the moov size if moved to the top of the file: the chunk * offset table can switch between stco (32-bit entries) to co64 (64-bit * entries) when the moov is moved to the beginning, so the size of the moov * would change. It also updates the chunk offset tables. */ static int compute_moov_size(AVFormatContext *s) { int i, moov_size, moov_size2; MOVMuxContext *mov = s->priv_data; moov_size = get_moov_size(s); if (moov_size < 0) return moov_size; for (i = 0; i < mov->nb_streams; i++) mov->tracks[i].data_offset += moov_size; moov_size2 = get_moov_size(s); if (moov_size2 < 0) return moov_size2; /* if the size changed, we just switched from stco to co64 and need to * update the offsets */ if (moov_size2 != moov_size) for (i = 0; i < mov->nb_streams; i++) mov->tracks[i].data_offset += moov_size2 - moov_size; return moov_size2; } static int compute_sidx_size(AVFormatContext *s) { int i, sidx_size; MOVMuxContext *mov = s->priv_data; sidx_size = get_sidx_size(s); if (sidx_size < 0) return sidx_size; for (i = 0; i < mov->nb_streams; i++) mov->tracks[i].data_offset += sidx_size; return sidx_size; } static int shift_data(AVFormatContext *s) { int moov_size; MOVMuxContext *mov = s->priv_data; if (mov->flags & FF_MOV_FLAG_FRAGMENT) moov_size = compute_sidx_size(s); else moov_size = compute_moov_size(s); if (moov_size < 0) return moov_size; return ff_format_shift_data(s, mov->reserved_header_pos, moov_size); } static int mov_write_trailer(AVFormatContext *s) { MOVMuxContext *mov = s->priv_data; AVIOContext *pb = s->pb; int res = 0; int i; int64_t moov_pos; if (mov->need_rewrite_extradata) { for (i = 0; i < s->nb_streams; i++) { MOVTrack *track = &mov->tracks[i]; AVCodecParameters *par = track->par; track->vos_len = par->extradata_size; av_freep(&track->vos_data); track->vos_data = av_malloc(track->vos_len + AV_INPUT_BUFFER_PADDING_SIZE); if (!track->vos_data) return AVERROR(ENOMEM); memcpy(track->vos_data, par->extradata, track->vos_len); memset(track->vos_data + track->vos_len, 0, AV_INPUT_BUFFER_PADDING_SIZE); } mov->need_rewrite_extradata = 0; } /* * Before actually writing the trailer, make sure that there are no * dangling subtitles, that need a terminating sample. */ for (i = 0; i < mov->nb_streams; i++) { MOVTrack *trk = &mov->tracks[i]; if (trk->par->codec_id == AV_CODEC_ID_MOV_TEXT && !trk->last_sample_is_subtitle_end) { mov_write_subtitle_end_packet(s, i, trk->track_duration); trk->last_sample_is_subtitle_end = 1; } } // Check if we have any tracks that require squashing. // In that case, we'll have to write the packet here. if ((res = mov_write_squashed_packets(s)) < 0) return res; // If there were no chapters when the header was written, but there // are chapters now, write them in the trailer. This only works // when we are not doing fragments. if (!mov->chapter_track && !(mov->flags & FF_MOV_FLAG_FRAGMENT)) { if (mov->mode & (MODE_MP4|MODE_MOV|MODE_IPOD) && s->nb_chapters) { mov->chapter_track = mov->nb_streams++; if ((res = mov_create_chapter_track(s, mov->chapter_track)) < 0) return res; } } if (!(mov->flags & FF_MOV_FLAG_FRAGMENT)) { moov_pos = avio_tell(pb); /* Write size of mdat tag */ if (mov->mdat_size + 8 <= UINT32_MAX) { avio_seek(pb, mov->mdat_pos, SEEK_SET); avio_wb32(pb, mov->mdat_size + 8); } else { /* overwrite 'wide' placeholder atom */ avio_seek(pb, mov->mdat_pos - 8, SEEK_SET); /* special value: real atom size will be 64 bit value after * tag field */ avio_wb32(pb, 1); ffio_wfourcc(pb, "mdat"); avio_wb64(pb, mov->mdat_size + 16); } avio_seek(pb, mov->reserved_moov_size > 0 ? mov->reserved_header_pos : moov_pos, SEEK_SET); if (mov->flags & FF_MOV_FLAG_FASTSTART) { av_log(s, AV_LOG_INFO, "Starting second pass: moving the moov atom to the beginning of the file\n"); res = shift_data(s); if (res < 0) return res; avio_seek(pb, mov->reserved_header_pos, SEEK_SET); if ((res = mov_write_moov_tag(pb, mov, s)) < 0) return res; } else if (mov->reserved_moov_size > 0) { int64_t size; if ((res = mov_write_moov_tag(pb, mov, s)) < 0) return res; size = mov->reserved_moov_size - (avio_tell(pb) - mov->reserved_header_pos); if (size < 8){ av_log(s, AV_LOG_ERROR, "reserved_moov_size is too small, needed %"PRId64" additional\n", 8-size); return AVERROR(EINVAL); } avio_wb32(pb, size); ffio_wfourcc(pb, "free"); ffio_fill(pb, 0, size - 8); avio_seek(pb, moov_pos, SEEK_SET); } else { if ((res = mov_write_moov_tag(pb, mov, s)) < 0) return res; } res = 0; } else { mov_auto_flush_fragment(s, 1); for (i = 0; i < mov->nb_streams; i++) mov->tracks[i].data_offset = 0; if (mov->flags & FF_MOV_FLAG_GLOBAL_SIDX) { int64_t end; av_log(s, AV_LOG_INFO, "Starting second pass: inserting sidx atoms\n"); res = shift_data(s); if (res < 0) return res; end = avio_tell(pb); avio_seek(pb, mov->reserved_header_pos, SEEK_SET); mov_write_sidx_tags(pb, mov, -1, 0); avio_seek(pb, end, SEEK_SET); } if (!(mov->flags & FF_MOV_FLAG_SKIP_TRAILER)) { avio_write_marker(s->pb, AV_NOPTS_VALUE, AVIO_DATA_MARKER_TRAILER); res = mov_write_mfra_tag(pb, mov); if (res < 0) return res; } } return res; } static int mov_check_bitstream(AVFormatContext *s, AVStream *st, const AVPacket *pkt) { int ret = 1; if (st->codecpar->codec_id == AV_CODEC_ID_AAC) { if (pkt->size > 2 && (AV_RB16(pkt->data) & 0xfff0) == 0xfff0) ret = ff_stream_add_bitstream_filter(st, "aac_adtstoasc", NULL); } else if (st->codecpar->codec_id == AV_CODEC_ID_VP9) { ret = ff_stream_add_bitstream_filter(st, "vp9_superframe", NULL); } return ret; } static int avif_write_trailer(AVFormatContext *s) { AVIOContext *pb = s->pb; MOVMuxContext *mov = s->priv_data; int64_t pos_backup, extent_offsets[2]; uint8_t *buf; int buf_size, moov_size, i; if (mov->moov_written) return 0; mov->is_animated_avif = s->streams[0]->nb_frames > 1; if (mov->is_animated_avif && s->nb_streams > 1) { // For animated avif with alpha channel, we need to write a tref tag // with type "auxl". mov->tracks[1].tref_tag = MKTAG('a', 'u', 'x', 'l'); mov->tracks[1].tref_id = 1; } mov_write_identification(pb, s); mov_write_meta_tag(pb, mov, s); moov_size = get_moov_size(s); for (i = 0; i < s->nb_streams; i++) mov->tracks[i].data_offset = avio_tell(pb) + moov_size + 8; if (mov->is_animated_avif) { int ret; if ((ret = mov_write_moov_tag(pb, mov, s)) < 0) return ret; } buf_size = avio_get_dyn_buf(mov->mdat_buf, &buf); avio_wb32(pb, buf_size + 8); ffio_wfourcc(pb, "mdat"); // The offset for the YUV planes is the starting position of mdat. extent_offsets[0] = avio_tell(pb); // The offset for alpha plane is YUV offset + YUV size. extent_offsets[1] = extent_offsets[0] + mov->avif_extent_length[0]; avio_write(pb, buf, buf_size); // write extent offsets. pos_backup = avio_tell(pb); for (i = 0; i < s->nb_streams; i++) { if (extent_offsets[i] != (uint32_t)extent_offsets[i]) { av_log(s, AV_LOG_ERROR, "extent offset does not fit in 32 bits\n"); return AVERROR_INVALIDDATA; } avio_seek(pb, mov->avif_extent_pos[i], SEEK_SET); avio_wb32(pb, extent_offsets[i]); /* rewrite offset */ } avio_seek(pb, pos_backup, SEEK_SET); return 0; } #if CONFIG_TGP_MUXER || CONFIG_TG2_MUXER static const AVCodecTag codec_3gp_tags[] = { { AV_CODEC_ID_H263, MKTAG('s','2','6','3') }, { AV_CODEC_ID_H264, MKTAG('a','v','c','1') }, { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') }, { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') }, { AV_CODEC_ID_AMR_NB, MKTAG('s','a','m','r') }, { AV_CODEC_ID_AMR_WB, MKTAG('s','a','w','b') }, { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') }, { AV_CODEC_ID_NONE, 0 }, }; static const AVCodecTag *const codec_3gp_tags_list[] = { codec_3gp_tags, NULL }; #endif static const AVCodecTag codec_mp4_tags[] = { { AV_CODEC_ID_MPEG4, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '1') }, { AV_CODEC_ID_H264, MKTAG('a', 'v', 'c', '3') }, { AV_CODEC_ID_HEVC, MKTAG('h', 'e', 'v', '1') }, { AV_CODEC_ID_HEVC, MKTAG('h', 'v', 'c', '1') }, { AV_CODEC_ID_MPEG2VIDEO, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_MPEG1VIDEO, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_MJPEG, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_PNG, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_JPEG2000, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_VC1, MKTAG('v', 'c', '-', '1') }, { AV_CODEC_ID_DIRAC, MKTAG('d', 'r', 'a', 'c') }, { AV_CODEC_ID_TSCC2, MKTAG('m', 'p', '4', 'v') }, { AV_CODEC_ID_VP9, MKTAG('v', 'p', '0', '9') }, { AV_CODEC_ID_AV1, MKTAG('a', 'v', '0', '1') }, { AV_CODEC_ID_AAC, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_ALAC, MKTAG('a', 'l', 'a', 'c') }, { AV_CODEC_ID_MP4ALS, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_MP3, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_MP2, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_AC3, MKTAG('a', 'c', '-', '3') }, { AV_CODEC_ID_EAC3, MKTAG('e', 'c', '-', '3') }, { AV_CODEC_ID_DTS, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_TRUEHD, MKTAG('m', 'l', 'p', 'a') }, { AV_CODEC_ID_FLAC, MKTAG('f', 'L', 'a', 'C') }, { AV_CODEC_ID_OPUS, MKTAG('O', 'p', 'u', 's') }, { AV_CODEC_ID_VORBIS, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_QCELP, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_EVRC, MKTAG('m', 'p', '4', 'a') }, { AV_CODEC_ID_DVD_SUBTITLE, MKTAG('m', 'p', '4', 's') }, { AV_CODEC_ID_MOV_TEXT, MKTAG('t', 'x', '3', 'g') }, { AV_CODEC_ID_BIN_DATA, MKTAG('g', 'p', 'm', 'd') }, { AV_CODEC_ID_MPEGH_3D_AUDIO, MKTAG('m', 'h', 'm', '1') }, { AV_CODEC_ID_TTML, MOV_MP4_TTML_TAG }, { AV_CODEC_ID_TTML, MOV_ISMV_TTML_TAG }, { AV_CODEC_ID_NONE, 0 }, }; #if CONFIG_MP4_MUXER || CONFIG_PSP_MUXER static const AVCodecTag *const mp4_codec_tags_list[] = { codec_mp4_tags, NULL }; #endif static const AVCodecTag codec_ism_tags[] = { { AV_CODEC_ID_WMAPRO , MKTAG('w', 'm', 'a', ' ') }, { AV_CODEC_ID_TTML , MOV_ISMV_TTML_TAG }, { AV_CODEC_ID_NONE , 0 }, }; static const AVCodecTag codec_ipod_tags[] = { { AV_CODEC_ID_H264, MKTAG('a','v','c','1') }, { AV_CODEC_ID_MPEG4, MKTAG('m','p','4','v') }, { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') }, { AV_CODEC_ID_ALAC, MKTAG('a','l','a','c') }, { AV_CODEC_ID_AC3, MKTAG('a','c','-','3') }, { AV_CODEC_ID_MOV_TEXT, MKTAG('t','x','3','g') }, { AV_CODEC_ID_MOV_TEXT, MKTAG('t','e','x','t') }, { AV_CODEC_ID_NONE, 0 }, }; static const AVCodecTag codec_f4v_tags[] = { { AV_CODEC_ID_MP3, MKTAG('.','m','p','3') }, { AV_CODEC_ID_AAC, MKTAG('m','p','4','a') }, { AV_CODEC_ID_H264, MKTAG('a','v','c','1') }, { AV_CODEC_ID_VP6A, MKTAG('V','P','6','A') }, { AV_CODEC_ID_VP6F, MKTAG('V','P','6','F') }, { AV_CODEC_ID_NONE, 0 }, }; #if CONFIG_AVIF_MUXER static const AVCodecTag codec_avif_tags[] = { { AV_CODEC_ID_AV1, MKTAG('a','v','0','1') }, { AV_CODEC_ID_NONE, 0 }, }; static const AVCodecTag *const codec_avif_tags_list[] = { codec_avif_tags, NULL }; static const AVClass mov_avif_muxer_class = { .class_name = "avif muxer", .item_name = av_default_item_name, .version = LIBAVUTIL_VERSION_INT, }; #endif #if CONFIG_MOV_MUXER const AVOutputFormat ff_mov_muxer = { .name = "mov", .long_name = NULL_IF_CONFIG_SMALL("QuickTime / MOV"), .extensions = "mov", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = CONFIG_LIBX264_ENCODER ? AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = (const AVCodecTag* const []){ ff_codec_movvideo_tags, ff_codec_movaudio_tags, ff_codec_movsubtitle_tags, 0 }, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_TGP_MUXER const AVOutputFormat ff_tgp_muxer = { .name = "3gp", .long_name = NULL_IF_CONFIG_SMALL("3GP (3GPP file format)"), .extensions = "3gp", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AMR_NB, .video_codec = AV_CODEC_ID_H263, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = codec_3gp_tags_list, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_MP4_MUXER const AVOutputFormat ff_mp4_muxer = { .name = "mp4", .long_name = NULL_IF_CONFIG_SMALL("MP4 (MPEG-4 Part 14)"), .mime_type = "video/mp4", .extensions = "mp4", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = CONFIG_LIBX264_ENCODER ? AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = mp4_codec_tags_list, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_PSP_MUXER const AVOutputFormat ff_psp_muxer = { .name = "psp", .long_name = NULL_IF_CONFIG_SMALL("PSP MP4 (MPEG-4 Part 14)"), .extensions = "mp4,psp", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = CONFIG_LIBX264_ENCODER ? AV_CODEC_ID_H264 : AV_CODEC_ID_MPEG4, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = mp4_codec_tags_list, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_TG2_MUXER const AVOutputFormat ff_tg2_muxer = { .name = "3g2", .long_name = NULL_IF_CONFIG_SMALL("3GP2 (3GPP2 file format)"), .extensions = "3g2", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AMR_NB, .video_codec = AV_CODEC_ID_H263, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = codec_3gp_tags_list, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_IPOD_MUXER const AVOutputFormat ff_ipod_muxer = { .name = "ipod", .long_name = NULL_IF_CONFIG_SMALL("iPod H.264 MP4 (MPEG-4 Part 14)"), .mime_type = "video/mp4", .extensions = "m4v,m4a,m4b", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = AV_CODEC_ID_H264, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = (const AVCodecTag* const []){ codec_ipod_tags, 0 }, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_ISMV_MUXER const AVOutputFormat ff_ismv_muxer = { .name = "ismv", .long_name = NULL_IF_CONFIG_SMALL("ISMV/ISMA (Smooth Streaming)"), .mime_type = "video/mp4", .extensions = "ismv,isma", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = AV_CODEC_ID_H264, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH | AVFMT_TS_NEGATIVE, .codec_tag = (const AVCodecTag* const []){ codec_mp4_tags, codec_ism_tags, 0 }, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_F4V_MUXER const AVOutputFormat ff_f4v_muxer = { .name = "f4v", .long_name = NULL_IF_CONFIG_SMALL("F4V Adobe Flash Video"), .mime_type = "application/f4v", .extensions = "f4v", .priv_data_size = sizeof(MOVMuxContext), .audio_codec = AV_CODEC_ID_AAC, .video_codec = AV_CODEC_ID_H264, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = mov_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH, .codec_tag = (const AVCodecTag* const []){ codec_f4v_tags, 0 }, .check_bitstream = mov_check_bitstream, .priv_class = &mov_isobmff_muxer_class, }; #endif #if CONFIG_AVIF_MUXER const AVOutputFormat ff_avif_muxer = { .name = "avif", .long_name = NULL_IF_CONFIG_SMALL("AVIF"), .mime_type = "image/avif", .extensions = "avif", .priv_data_size = sizeof(MOVMuxContext), .video_codec = AV_CODEC_ID_AV1, .init = mov_init, .write_header = mov_write_header, .write_packet = mov_write_packet, .write_trailer = avif_write_trailer, .deinit = mov_free, .flags = AVFMT_GLOBALHEADER | AVFMT_ALLOW_FLUSH, .codec_tag = codec_avif_tags_list, .priv_class = &mov_avif_muxer_class, }; #endif