2009-02-26 02:21:43 +00:00
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/*
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* raw FLAC muxer
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* Copyright (c) 2006-2009 Justin Ruggles
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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2021-07-23 02:01:44 +00:00
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#include "libavutil/avstring.h"
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2014-05-25 09:34:32 +00:00
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#include "libavutil/channel_layout.h"
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2014-01-09 17:11:26 +00:00
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#include "libavutil/opt.h"
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2018-04-04 04:17:24 +00:00
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#include "libavutil/pixdesc.h"
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2009-02-26 02:29:24 +00:00
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#include "libavcodec/flac.h"
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2020-08-17 15:03:50 +00:00
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#include "libavcodec/packet_internal.h"
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2009-02-26 02:21:43 +00:00
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#include "avformat.h"
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2013-05-29 10:40:13 +00:00
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#include "avio_internal.h"
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2009-02-26 02:41:53 +00:00
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#include "flacenc.h"
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2018-04-04 04:17:24 +00:00
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#include "id3v2.h"
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#include "internal.h"
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2010-03-20 13:36:43 +00:00
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#include "vorbiscomment.h"
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2009-02-26 02:21:43 +00:00
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2014-01-09 17:11:26 +00:00
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typedef struct FlacMuxerContext {
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const AVClass *class;
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int write_header;
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2014-05-26 20:14:14 +00:00
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2018-04-04 04:17:24 +00:00
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int audio_stream_idx;
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int waiting_pics;
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/* audio packets are queued here until we get all the attached pictures */
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2021-03-05 14:26:24 +00:00
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PacketList *queue, *queue_end;
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2018-04-04 04:17:24 +00:00
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2014-05-26 20:14:14 +00:00
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/* updated streaminfo sent by the encoder at the end */
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2020-04-12 16:23:44 +00:00
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uint8_t streaminfo[FLAC_STREAMINFO_SIZE];
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int updated_streaminfo;
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2018-04-04 04:17:24 +00:00
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unsigned attached_types;
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2014-01-09 17:11:26 +00:00
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} FlacMuxerContext;
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2011-02-20 10:04:12 +00:00
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static int flac_write_block_padding(AVIOContext *pb, unsigned int n_padding_bytes,
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2010-03-20 13:36:43 +00:00
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int last_block)
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{
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2011-02-21 18:28:17 +00:00
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avio_w8(pb, last_block ? 0x81 : 0x01);
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avio_wb24(pb, n_padding_bytes);
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2013-05-29 10:40:13 +00:00
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ffio_fill(pb, 0, n_padding_bytes);
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2010-03-20 13:36:43 +00:00
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return 0;
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}
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2011-05-22 10:46:29 +00:00
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static int flac_write_block_comment(AVIOContext *pb, AVDictionary **m,
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2010-03-20 13:36:43 +00:00
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int last_block, int bitexact)
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{
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const char *vendor = bitexact ? "ffmpeg" : LIBAVFORMAT_IDENT;
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2015-05-11 13:30:32 +00:00
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int64_t len;
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2010-03-20 13:36:43 +00:00
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2010-10-27 05:02:29 +00:00
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ff_metadata_conv(m, ff_vorbiscomment_metadata_conv, NULL);
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2018-12-16 20:50:08 +00:00
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len = ff_vorbiscomment_length(*m, vendor, NULL, 0);
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2015-05-11 13:30:32 +00:00
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if (len >= ((1<<24) - 4))
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return AVERROR(EINVAL);
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2010-03-20 13:36:43 +00:00
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2020-04-28 02:54:05 +00:00
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avio_w8(pb, last_block ? 0x84 : 0x04);
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avio_wb24(pb, len);
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ff_vorbiscomment_write(pb, *m, vendor, NULL, 0);
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2010-03-20 13:36:43 +00:00
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return 0;
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}
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2018-04-04 04:17:24 +00:00
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static int flac_write_picture(struct AVFormatContext *s, AVPacket *pkt)
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2009-02-26 02:41:53 +00:00
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{
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2018-04-04 04:17:24 +00:00
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FlacMuxerContext *c = s->priv_data;
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AVIOContext *pb = s->pb;
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const AVPixFmtDescriptor *pixdesc;
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const CodecMime *mime = ff_id3v2_mime_tags;
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AVDictionaryEntry *e;
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const char *mimetype = NULL, *desc = "";
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const AVStream *st = s->streams[pkt->stream_index];
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2019-10-30 13:01:28 +00:00
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int i, mimelen, desclen, type = 0, blocklen;
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2018-04-04 04:17:24 +00:00
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if (!pkt->data)
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2014-01-09 17:11:26 +00:00
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return 0;
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2010-03-20 13:36:43 +00:00
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2018-04-04 04:17:24 +00:00
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while (mime->id != AV_CODEC_ID_NONE) {
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if (mime->id == st->codecpar->codec_id) {
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mimetype = mime->str;
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break;
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}
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mime++;
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}
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if (!mimetype) {
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av_log(s, AV_LOG_ERROR, "No mimetype is known for stream %d, cannot "
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"write an attached picture.\n", st->index);
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return AVERROR(EINVAL);
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}
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mimelen = strlen(mimetype);
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/* get the picture type */
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e = av_dict_get(st->metadata, "comment", NULL, 0);
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for (i = 0; e && i < FF_ARRAY_ELEMS(ff_id3v2_picture_types); i++) {
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if (!av_strcasecmp(e->value, ff_id3v2_picture_types[i])) {
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type = i;
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break;
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}
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}
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if ((c->attached_types & (1 << type)) & 0x6) {
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av_log(s, AV_LOG_ERROR, "Duplicate attachment for type '%s'\n", ff_id3v2_picture_types[type]);
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2012-10-20 22:16:13 +00:00
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return AVERROR(EINVAL);
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}
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2018-04-04 04:17:24 +00:00
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if (type == 1 && (st->codecpar->codec_id != AV_CODEC_ID_PNG ||
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st->codecpar->width != 32 ||
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st->codecpar->height != 32)) {
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av_log(s, AV_LOG_ERROR, "File icon attachment must be a 32x32 PNG");
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2012-10-20 22:16:13 +00:00
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return AVERROR(EINVAL);
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}
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2018-04-04 04:17:24 +00:00
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c->attached_types |= (1 << type);
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/* get the description */
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if ((e = av_dict_get(st->metadata, "title", NULL, 0)))
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desc = e->value;
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desclen = strlen(desc);
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2019-10-30 13:01:28 +00:00
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blocklen = 4 + 4 + mimelen + 4 + desclen + 4 + 4 + 4 + 4 + 4 + pkt->size;
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if (blocklen >= 1<<24) {
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av_log(s, AV_LOG_ERROR, "Picture block too big %d >= %d\n", blocklen, 1<<24);
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return AVERROR(EINVAL);
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}
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2018-04-04 04:17:24 +00:00
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avio_w8(pb, 0x06);
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2019-10-30 13:01:28 +00:00
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avio_wb24(pb, blocklen);
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2018-04-04 04:17:24 +00:00
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avio_wb32(pb, type);
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avio_wb32(pb, mimelen);
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avio_write(pb, mimetype, mimelen);
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avio_wb32(pb, desclen);
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avio_write(pb, desc, desclen);
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avio_wb32(pb, st->codecpar->width);
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avio_wb32(pb, st->codecpar->height);
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if ((pixdesc = av_pix_fmt_desc_get(st->codecpar->format)))
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avio_wb32(pb, av_get_bits_per_pixel(pixdesc));
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else
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avio_wb32(pb, 0);
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avio_wb32(pb, 0);
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avio_wb32(pb, pkt->size);
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avio_write(pb, pkt->data, pkt->size);
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return 0;
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}
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static int flac_finish_header(struct AVFormatContext *s)
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{
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int i, ret, padding = s->metadata_header_padding;
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2013-12-29 21:58:27 +00:00
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if (padding < 0)
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padding = 8192;
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/* The FLAC specification states that 24 bits are used to represent the
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* size of a metadata block so we must clip this value to 2^24-1. */
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2015-02-21 13:43:28 +00:00
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padding = av_clip_uintp2(padding, 24);
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2013-12-29 21:58:27 +00:00
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2018-04-04 04:17:24 +00:00
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for (i = 0; i < s->nb_streams; i++) {
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AVStream *st = s->streams[i];
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AVPacket *pkt = st->priv_data;
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if (!pkt)
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continue;
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ret = flac_write_picture(s, pkt);
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av_packet_unref(pkt);
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if (ret < 0 && (s->error_recognition & AV_EF_EXPLODE))
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return ret;
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}
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ret = flac_write_block_comment(s->pb, &s->metadata, !padding,
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s->flags & AVFMT_FLAG_BITEXACT);
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if (ret)
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return ret;
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/* The command line flac encoder defaults to placing a seekpoint
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* every 10s. So one might add padding to allow that later
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* but there seems to be no simple way to get the duration here.
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* So just add the amount requested by the user. */
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if (padding)
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flac_write_block_padding(s->pb, padding, 1);
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return 0;
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}
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2018-04-16 15:44:35 +00:00
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static int flac_init(struct AVFormatContext *s)
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2018-04-04 04:17:24 +00:00
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{
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AVCodecParameters *par;
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FlacMuxerContext *c = s->priv_data;
|
2018-04-16 15:44:35 +00:00
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int i;
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2018-04-04 04:17:24 +00:00
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c->audio_stream_idx = -1;
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for (i = 0; i < s->nb_streams; i++) {
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AVStream *st = s->streams[i];
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if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
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if (c->audio_stream_idx >= 0 || st->codecpar->codec_id != AV_CODEC_ID_FLAC) {
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av_log(s, AV_LOG_ERROR, "Invalid audio stream. Exactly one FLAC "
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"audio stream is required.\n");
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return AVERROR(EINVAL);
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}
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par = s->streams[i]->codecpar;
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c->audio_stream_idx = i;
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} else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) {
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if (!(st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
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av_log(s, AV_LOG_WARNING, "Video stream #%d is not an attached picture. Ignoring\n", i);
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continue;
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} else if (st->codecpar->codec_id == AV_CODEC_ID_GIF) {
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av_log(s, AV_LOG_ERROR, "GIF image support is not implemented.\n");
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return AVERROR_PATCHWELCOME;
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} else if (!c->write_header) {
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av_log(s, AV_LOG_ERROR, "Can't write attached pictures without a header.\n");
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return AVERROR(EINVAL);
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}
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c->waiting_pics++;
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} else {
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av_log(s, AV_LOG_ERROR, "Only audio streams and pictures are allowed in FLAC.\n");
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return AVERROR(EINVAL);
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}
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}
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if (c->audio_stream_idx < 0) {
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av_log(s, AV_LOG_ERROR, "No audio stream present.\n");
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return AVERROR(EINVAL);
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}
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2014-05-25 09:34:32 +00:00
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/* add the channel layout tag */
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lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
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if (par->channel_layout &&
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!(par->channel_layout & ~0x3ffffULL) &&
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!ff_flac_is_native_layout(par->channel_layout)) {
|
2014-05-25 09:34:32 +00:00
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AVDictionaryEntry *chmask = av_dict_get(s->metadata, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK",
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NULL, 0);
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if (chmask) {
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|
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av_log(s, AV_LOG_WARNING, "A WAVEFORMATEXTENSIBLE_CHANNEL_MASK is "
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|
|
"already present, this muxer will not overwrite it.\n");
|
|
|
|
} else {
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|
|
|
uint8_t buf[32];
|
lavf: replace AVStream.codec with AVStream.codecpar
Currently, AVStream contains an embedded AVCodecContext instance, which
is used by demuxers to export stream parameters to the caller and by
muxers to receive stream parameters from the caller. It is also used
internally as the codec context that is passed to parsers.
In addition, it is also widely used by the callers as the decoding (when
demuxer) or encoding (when muxing) context, though this has been
officially discouraged since Libav 11.
There are multiple important problems with this approach:
- the fields in AVCodecContext are in general one of
* stream parameters
* codec options
* codec state
However, it's not clear which ones are which. It is consequently
unclear which fields are a demuxer allowed to set or a muxer allowed to
read. This leads to erratic behaviour depending on whether decoding or
encoding is being performed or not (and whether it uses the AVStream
embedded codec context).
- various synchronization issues arising from the fact that the same
context is used by several different APIs (muxers/demuxers,
parsers, bitstream filters and encoders/decoders) simultaneously, with
there being no clear rules for who can modify what and the different
processes being typically delayed with respect to each other.
- avformat_find_stream_info() making it necessary to support opening
and closing a single codec context multiple times, thus
complicating the semantics of freeing various allocated objects in the
codec context.
Those problems are resolved by replacing the AVStream embedded codec
context with a newly added AVCodecParameters instance, which stores only
the stream parameters exported by the demuxers or read by the muxers.
2014-06-18 18:42:52 +00:00
|
|
|
snprintf(buf, sizeof(buf), "0x%"PRIx64, par->channel_layout);
|
2014-05-25 09:34:32 +00:00
|
|
|
av_dict_set(&s->metadata, "WAVEFORMATEXTENSIBLE_CHANNEL_MASK", buf, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2018-04-16 15:44:35 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int flac_write_header(struct AVFormatContext *s)
|
|
|
|
{
|
|
|
|
FlacMuxerContext *c = s->priv_data;
|
|
|
|
AVCodecParameters *par = s->streams[c->audio_stream_idx]->codecpar;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (!c->write_header)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
ret = ff_flac_write_header(s->pb, par->extradata,
|
|
|
|
par->extradata_size, 0);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
|
2018-04-04 04:17:24 +00:00
|
|
|
if (!c->waiting_pics)
|
|
|
|
ret = flac_finish_header(s);
|
2010-03-20 13:36:43 +00:00
|
|
|
|
2018-04-04 04:17:24 +00:00
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int flac_write_audio_packet(struct AVFormatContext *s, AVPacket *pkt)
|
|
|
|
{
|
|
|
|
FlacMuxerContext *c = s->priv_data;
|
|
|
|
uint8_t *streaminfo;
|
2021-04-14 12:59:32 +00:00
|
|
|
size_t streaminfo_size;
|
2018-04-04 04:17:24 +00:00
|
|
|
|
|
|
|
/* check for updated streaminfo */
|
|
|
|
streaminfo = av_packet_get_side_data(pkt, AV_PKT_DATA_NEW_EXTRADATA,
|
|
|
|
&streaminfo_size);
|
|
|
|
if (streaminfo && streaminfo_size == FLAC_STREAMINFO_SIZE) {
|
|
|
|
memcpy(c->streaminfo, streaminfo, FLAC_STREAMINFO_SIZE);
|
2020-04-12 16:23:44 +00:00
|
|
|
c->updated_streaminfo = 1;
|
2018-04-04 04:17:24 +00:00
|
|
|
}
|
2010-03-20 13:36:43 +00:00
|
|
|
|
2018-04-04 04:17:24 +00:00
|
|
|
if (pkt->size)
|
|
|
|
avio_write(s->pb, pkt->data, pkt->size);
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
static int flac_queue_flush(AVFormatContext *s)
|
|
|
|
{
|
|
|
|
FlacMuxerContext *c = s->priv_data;
|
|
|
|
AVPacket pkt;
|
|
|
|
int ret, write = 1;
|
|
|
|
|
|
|
|
ret = flac_finish_header(s);
|
|
|
|
if (ret < 0)
|
|
|
|
write = 0;
|
|
|
|
|
|
|
|
while (c->queue) {
|
2020-08-17 15:03:50 +00:00
|
|
|
avpriv_packet_list_get(&c->queue, &c->queue_end, &pkt);
|
2018-04-04 04:17:24 +00:00
|
|
|
if (write && (ret = flac_write_audio_packet(s, &pkt)) < 0)
|
|
|
|
write = 0;
|
|
|
|
av_packet_unref(&pkt);
|
|
|
|
}
|
2010-03-20 13:36:43 +00:00
|
|
|
return ret;
|
2009-02-26 02:41:53 +00:00
|
|
|
}
|
|
|
|
|
2009-02-26 02:21:43 +00:00
|
|
|
static int flac_write_trailer(struct AVFormatContext *s)
|
|
|
|
{
|
2011-02-20 10:04:12 +00:00
|
|
|
AVIOContext *pb = s->pb;
|
2009-02-26 02:21:43 +00:00
|
|
|
int64_t file_size;
|
2014-01-09 17:11:26 +00:00
|
|
|
FlacMuxerContext *c = s->priv_data;
|
2018-04-04 04:17:24 +00:00
|
|
|
|
|
|
|
if (c->waiting_pics) {
|
|
|
|
av_log(s, AV_LOG_WARNING, "No packets were sent for some of the "
|
|
|
|
"attached pictures.\n");
|
|
|
|
flac_queue_flush(s);
|
|
|
|
}
|
2014-01-09 17:11:26 +00:00
|
|
|
|
2020-04-12 16:23:44 +00:00
|
|
|
if (!c->write_header || !c->updated_streaminfo)
|
2014-01-09 17:11:26 +00:00
|
|
|
return 0;
|
2009-02-26 02:21:43 +00:00
|
|
|
|
2016-09-27 14:26:37 +00:00
|
|
|
if (pb->seekable & AVIO_SEEKABLE_NORMAL) {
|
2009-02-26 02:29:24 +00:00
|
|
|
/* rewrite the STREAMINFO header block data */
|
2011-03-03 19:11:45 +00:00
|
|
|
file_size = avio_tell(pb);
|
2011-02-28 13:57:54 +00:00
|
|
|
avio_seek(pb, 8, SEEK_SET);
|
2020-04-12 15:49:30 +00:00
|
|
|
avio_write(pb, c->streaminfo, FLAC_STREAMINFO_SIZE);
|
2011-02-28 13:57:54 +00:00
|
|
|
avio_seek(pb, file_size, SEEK_SET);
|
2009-02-26 02:29:24 +00:00
|
|
|
} else {
|
|
|
|
av_log(s, AV_LOG_WARNING, "unable to rewrite FLAC header.\n");
|
2009-02-26 02:21:43 +00:00
|
|
|
}
|
2014-05-26 20:14:14 +00:00
|
|
|
|
2009-02-26 02:21:43 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2019-10-21 02:44:05 +00:00
|
|
|
static void flac_deinit(struct AVFormatContext *s)
|
|
|
|
{
|
|
|
|
FlacMuxerContext *c = s->priv_data;
|
|
|
|
|
2020-08-17 15:03:50 +00:00
|
|
|
avpriv_packet_list_free(&c->queue, &c->queue_end);
|
2020-11-20 16:36:39 +00:00
|
|
|
for (unsigned i = 0; i < s->nb_streams; i++)
|
|
|
|
av_packet_free((AVPacket **)&s->streams[i]->priv_data);
|
2019-10-21 02:44:05 +00:00
|
|
|
}
|
|
|
|
|
2009-02-26 02:21:43 +00:00
|
|
|
static int flac_write_packet(struct AVFormatContext *s, AVPacket *pkt)
|
|
|
|
{
|
2014-05-26 20:14:14 +00:00
|
|
|
FlacMuxerContext *c = s->priv_data;
|
2018-04-04 04:17:24 +00:00
|
|
|
int ret;
|
2014-05-26 20:14:14 +00:00
|
|
|
|
2018-04-04 04:17:24 +00:00
|
|
|
if (pkt->stream_index == c->audio_stream_idx) {
|
|
|
|
if (c->waiting_pics) {
|
|
|
|
/* buffer audio packets until we get all the pictures */
|
2020-08-17 15:03:50 +00:00
|
|
|
ret = avpriv_packet_list_put(&c->queue, &c->queue_end, pkt, av_packet_ref, 0);
|
2018-04-04 04:17:24 +00:00
|
|
|
if (ret < 0) {
|
|
|
|
av_log(s, AV_LOG_ERROR, "Out of memory in packet queue; skipping attached pictures\n");
|
|
|
|
c->waiting_pics = 0;
|
|
|
|
ret = flac_queue_flush(s);
|
|
|
|
if (ret < 0)
|
|
|
|
return ret;
|
|
|
|
return flac_write_audio_packet(s, pkt);
|
|
|
|
}
|
|
|
|
} else
|
|
|
|
return flac_write_audio_packet(s, pkt);
|
|
|
|
} else {
|
|
|
|
AVStream *st = s->streams[pkt->stream_index];
|
2014-05-26 20:14:14 +00:00
|
|
|
|
2018-04-04 04:17:24 +00:00
|
|
|
if (!c->waiting_pics ||
|
|
|
|
!(st->disposition & AV_DISPOSITION_ATTACHED_PIC))
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
/* warn only once for each stream */
|
|
|
|
if (st->nb_frames == 1) {
|
|
|
|
av_log(s, AV_LOG_WARNING, "Got more than one picture in stream %d,"
|
|
|
|
" ignoring.\n", pkt->stream_index);
|
|
|
|
}
|
|
|
|
if (st->nb_frames >= 1)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
st->priv_data = av_packet_clone(pkt);
|
|
|
|
if (!st->priv_data)
|
|
|
|
av_log(s, AV_LOG_ERROR, "Out of memory queueing an attached picture; skipping\n");
|
|
|
|
c->waiting_pics--;
|
|
|
|
|
|
|
|
/* flush the buffered audio packets */
|
|
|
|
if (!c->waiting_pics &&
|
|
|
|
(ret = flac_queue_flush(s)) < 0)
|
|
|
|
return ret;
|
2014-05-26 20:14:14 +00:00
|
|
|
}
|
|
|
|
|
2009-02-26 02:21:43 +00:00
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
2014-01-09 17:11:26 +00:00
|
|
|
static const AVOption flacenc_options[] = {
|
2015-11-21 21:05:07 +00:00
|
|
|
{ "write_header", "Write the file header", offsetof(FlacMuxerContext, write_header), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, AV_OPT_FLAG_ENCODING_PARAM },
|
2014-01-09 17:11:26 +00:00
|
|
|
{ NULL },
|
|
|
|
};
|
|
|
|
|
|
|
|
static const AVClass flac_muxer_class = {
|
|
|
|
.class_name = "flac muxer",
|
|
|
|
.item_name = av_default_item_name,
|
|
|
|
.option = flacenc_options,
|
|
|
|
.version = LIBAVUTIL_VERSION_INT,
|
|
|
|
};
|
|
|
|
|
2021-04-19 17:45:24 +00:00
|
|
|
const AVOutputFormat ff_flac_muxer = {
|
2011-07-16 20:18:12 +00:00
|
|
|
.name = "flac",
|
|
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw FLAC"),
|
2014-01-09 17:11:26 +00:00
|
|
|
.priv_data_size = sizeof(FlacMuxerContext),
|
2011-07-16 20:18:12 +00:00
|
|
|
.mime_type = "audio/x-flac",
|
|
|
|
.extensions = "flac",
|
2012-08-05 09:11:04 +00:00
|
|
|
.audio_codec = AV_CODEC_ID_FLAC,
|
2018-04-04 04:17:24 +00:00
|
|
|
.video_codec = AV_CODEC_ID_PNG,
|
2018-04-16 15:44:35 +00:00
|
|
|
.init = flac_init,
|
2011-07-16 20:18:12 +00:00
|
|
|
.write_header = flac_write_header,
|
|
|
|
.write_packet = flac_write_packet,
|
|
|
|
.write_trailer = flac_write_trailer,
|
2019-10-21 02:44:05 +00:00
|
|
|
.deinit = flac_deinit,
|
2012-04-06 14:50:48 +00:00
|
|
|
.flags = AVFMT_NOTIMESTAMPS,
|
2014-01-09 17:11:26 +00:00
|
|
|
.priv_class = &flac_muxer_class,
|
2009-02-26 02:21:43 +00:00
|
|
|
};
|