mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-07 11:13:41 +02:00
d0492578c8
* qatar/master: presets: rename presets directory lavc: make avcodec_get_context_defaults3 "officially" public lavf: replace av_new_stream->avformat_new_stream part II. lavf,lavd: replace av_new_stream->avformat_new_stream part I. lavf: add avformat_new_stream as a replacement for av_new_stream. Use correct scaling table for bwd-pred MVs in second B-field Ut Video decoder Makefile: change presets extension to .avpreset lavfi: add rgbtestsrc source, ported from MPlayer libmpcodecs lavfi: add testsrc source AVOptions: add documentation. presets: update libx264 ffpresets Conflicts: Changelog doc/APIchanges doc/ffmpeg.texi ffpresets/libx264-ipod320.ffpreset ffpresets/libx264-ipod640.ffpreset ffserver.c libavcodec/avcodec.h libavcodec/options.c libavcodec/version.h libavdevice/libdc1394.c libavfilter/avfilter.h libavfilter/vsrc_testsrc.c libavformat/flvdec.c libavformat/riff.c libavformat/version.h libavformat/wtv.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, AVFormatParameters *ap) {
|
|
AVStream *st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
st->codec->codec_id = 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 format"),
|
|
.read_header = daud_header,
|
|
.read_packet = daud_packet,
|
|
.extensions = "302",
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_DAUD_MUXER
|
|
AVOutputFormat ff_daud_muxer = {
|
|
.name = "daud",
|
|
.long_name = NULL_IF_CONFIG_SMALL("D-Cinema audio format"),
|
|
.extensions = "302",
|
|
.audio_codec = CODEC_ID_PCM_S24DAUD,
|
|
.video_codec = CODEC_ID_NONE,
|
|
.write_header = daud_write_header,
|
|
.write_packet = daud_write_packet,
|
|
.flags = AVFMT_NOTIMESTAMPS,
|
|
};
|
|
#endif
|