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976a8b2179
* qatar/master: (40 commits) H.264: template left MB handling H.264: faster fill_decode_caches H.264: faster write_back_* H.264: faster fill_filter_caches H.264: make filter_mb_fast support the case of unavailable top mb Do not include log.h in avutil.h Do not include pixfmt.h in avutil.h Do not include rational.h in avutil.h Do not include mathematics.h in avutil.h Do not include intfloat_readwrite.h in avutil.h Remove return statements following infinite loops without break RTSP: Doxygen comment cleanup doxygen: Escape '\' in Doxygen documentation. md5: cosmetics md5: use AV_WL32 to write result md5: add fate test md5: include correct headers md5: fix test program doxygen: Drop array size declarations from Doxygen parameter names. doxygen: Fix parameter names to match the function prototypes. ... Conflicts: libavcodec/x86/dsputil_mmx.c libavformat/flvenc.c libavformat/oggenc.c libavformat/wtv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
130 lines
3.6 KiB
C
130 lines
3.6 KiB
C
/*
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* SoX native format muxer
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* Copyright (c) 2009 Daniel Verkamp <daniel@drv.nu>
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*
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* Based on libSoX sox-fmt.c
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* Copyright (c) 2008 robs@users.sourceforge.net
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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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/**
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* SoX native format muxer
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* @file
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* @author Daniel Verkamp
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* @sa http://wiki.multimedia.cx/index.php?title=SoX_native_intermediate_format
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*/
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#include "libavutil/intreadwrite.h"
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#include "libavutil/intfloat_readwrite.h"
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#include "libavutil/dict.h"
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#include "avformat.h"
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#include "avio_internal.h"
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#include "sox.h"
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typedef struct {
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int64_t header_size;
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} SoXContext;
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static int sox_write_header(AVFormatContext *s)
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{
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SoXContext *sox = s->priv_data;
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AVIOContext *pb = s->pb;
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AVCodecContext *enc = s->streams[0]->codec;
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AVDictionaryEntry *comment;
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size_t comment_len = 0, comment_size;
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comment = av_dict_get(s->metadata, "comment", NULL, 0);
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if (comment)
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comment_len = strlen(comment->value);
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comment_size = (comment_len + 7) & ~7;
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sox->header_size = SOX_FIXED_HDR + comment_size;
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if (enc->codec_id == CODEC_ID_PCM_S32LE) {
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ffio_wfourcc(pb, ".SoX");
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avio_wl32(pb, sox->header_size);
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avio_wl64(pb, 0); /* number of samples */
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avio_wl64(pb, av_dbl2int(enc->sample_rate));
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avio_wl32(pb, enc->channels);
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avio_wl32(pb, comment_size);
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} else if (enc->codec_id == CODEC_ID_PCM_S32BE) {
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ffio_wfourcc(pb, "XoS.");
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avio_wb32(pb, sox->header_size);
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avio_wb64(pb, 0); /* number of samples */
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avio_wb64(pb, av_dbl2int(enc->sample_rate));
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avio_wb32(pb, enc->channels);
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avio_wb32(pb, comment_size);
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} else {
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av_log(s, AV_LOG_ERROR, "invalid codec; use pcm_s32le or pcm_s32be\n");
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return -1;
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}
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if (comment_len)
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avio_write(pb, comment->value, comment_len);
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for ( ; comment_size > comment_len; comment_len++)
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avio_w8(pb, 0);
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avio_flush(pb);
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return 0;
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}
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static int sox_write_packet(AVFormatContext *s, AVPacket *pkt)
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{
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AVIOContext *pb = s->pb;
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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 sox_write_trailer(AVFormatContext *s)
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{
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SoXContext *sox = s->priv_data;
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AVIOContext *pb = s->pb;
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AVCodecContext *enc = s->streams[0]->codec;
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if (s->pb->seekable) {
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/* update number of samples */
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int64_t file_size = avio_tell(pb);
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int64_t num_samples = (file_size - sox->header_size - 4LL) >> 2LL;
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avio_seek(pb, 8, SEEK_SET);
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if (enc->codec_id == CODEC_ID_PCM_S32LE) {
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avio_wl64(pb, num_samples);
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} else
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avio_wb64(pb, num_samples);
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avio_seek(pb, file_size, SEEK_SET);
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avio_flush(pb);
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}
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return 0;
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}
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AVOutputFormat ff_sox_muxer = {
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"sox",
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NULL_IF_CONFIG_SMALL("SoX native format"),
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NULL,
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"sox",
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sizeof(SoXContext),
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CODEC_ID_PCM_S32LE,
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CODEC_ID_NONE,
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sox_write_header,
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sox_write_packet,
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sox_write_trailer,
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};
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