mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-23 12:43:46 +02:00
7a72695c05
* commit '36ef5369ee9b336febc2c270f8718cec4476cb85': Replace all CODEC_ID_* with AV_CODEC_ID_* lavc: add AV prefix to codec ids. Conflicts: doc/APIchanges doc/examples/decoding_encoding.c doc/examples/muxing.c ffmpeg.c ffprobe.c ffserver.c libavcodec/8svx.c libavcodec/avcodec.h libavcodec/dnxhd_parser.c libavcodec/dvdsubdec.c libavcodec/error_resilience.c libavcodec/h263dec.c libavcodec/libvorbisenc.c libavcodec/mjpeg_parser.c libavcodec/mjpegenc.c libavcodec/mpeg12.c libavcodec/mpeg4videodec.c libavcodec/mpegvideo.c libavcodec/mpegvideo_enc.c libavcodec/pcm.c libavcodec/r210dec.c libavcodec/utils.c libavcodec/v210dec.c libavcodec/version.h libavdevice/alsa-audio-dec.c libavdevice/bktr.c libavdevice/v4l2.c libavformat/asfdec.c libavformat/asfenc.c libavformat/avformat.h libavformat/avidec.c libavformat/caf.c libavformat/electronicarts.c libavformat/flacdec.c libavformat/flvdec.c libavformat/flvenc.c libavformat/framecrcenc.c libavformat/img2.c libavformat/img2dec.c libavformat/img2enc.c libavformat/ipmovie.c libavformat/isom.c libavformat/matroska.c libavformat/matroskadec.c libavformat/matroskaenc.c libavformat/mov.c libavformat/movenc.c libavformat/mp3dec.c libavformat/mpeg.c libavformat/mpegts.c libavformat/mxf.c libavformat/mxfdec.c libavformat/mxfenc.c libavformat/nsvdec.c libavformat/nut.c libavformat/oggenc.c libavformat/pmpdec.c libavformat/rawdec.c libavformat/rawenc.c libavformat/riff.c libavformat/sdp.c libavformat/utils.c libavformat/vocenc.c libavformat/wtv.c libavformat/xmv.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
94 lines
2.8 KiB
C
94 lines
2.8 KiB
C
/*
|
|
* D-Cinema audio demuxer
|
|
* Copyright (c) 2005 Reimar Döffinger
|
|
*
|
|
* 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 "avformat.h"
|
|
|
|
static int daud_header(AVFormatContext *s) {
|
|
AVStream *st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codec->codec_id = AV_CODEC_ID_PCM_S24DAUD;
|
|
st->codec->codec_tag = MKTAG('d', 'a', 'u', 'd');
|
|
st->codec->channels = 6;
|
|
st->codec->sample_rate = 96000;
|
|
st->codec->bit_rate = 3 * 6 * 96000 * 8;
|
|
st->codec->block_align = 3 * 6;
|
|
st->codec->bits_per_coded_sample = 24;
|
|
return 0;
|
|
}
|
|
|
|
static int daud_packet(AVFormatContext *s, AVPacket *pkt) {
|
|
AVIOContext *pb = s->pb;
|
|
int ret, size;
|
|
if (url_feof(pb))
|
|
return AVERROR(EIO);
|
|
size = avio_rb16(pb);
|
|
avio_rb16(pb); // unknown
|
|
ret = av_get_packet(pb, pkt, size);
|
|
pkt->stream_index = 0;
|
|
return ret;
|
|
}
|
|
|
|
static int daud_write_header(struct AVFormatContext *s)
|
|
{
|
|
AVCodecContext *codec = s->streams[0]->codec;
|
|
if (codec->channels!=6 || codec->sample_rate!=96000)
|
|
return -1;
|
|
return 0;
|
|
}
|
|
|
|
static int daud_write_packet(struct AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
if (pkt->size > 65535) {
|
|
av_log(s, AV_LOG_ERROR,
|
|
"Packet size too large for s302m. (%d > 65535)\n", pkt->size);
|
|
return -1;
|
|
}
|
|
avio_wb16(s->pb, pkt->size);
|
|
avio_wb16(s->pb, 0x8010); // unknown
|
|
avio_write(s->pb, pkt->data, pkt->size);
|
|
avio_flush(s->pb);
|
|
return 0;
|
|
}
|
|
|
|
#if CONFIG_DAUD_DEMUXER
|
|
AVInputFormat ff_daud_demuxer = {
|
|
.name = "daud",
|
|
.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
|
|
.read_header = daud_header,
|
|
.read_packet = daud_packet,
|
|
.extensions = "302,daud",
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_DAUD_MUXER
|
|
AVOutputFormat ff_daud_muxer = {
|
|
.name = "daud",
|
|
.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio"),
|
|
.extensions = "302",
|
|
.audio_codec = AV_CODEC_ID_PCM_S24DAUD,
|
|
.video_codec = AV_CODEC_ID_NONE,
|
|
.write_header = daud_write_header,
|
|
.write_packet = daud_write_packet,
|
|
.flags = AVFMT_NOTIMESTAMPS,
|
|
};
|
|
#endif
|