mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2024-12-11 17:55:21 +00:00
e37f161e66
* qatar/master: (71 commits) movenc: Allow writing to a non-seekable output if using empty moov movenc: Support adding isml (smooth streaming live) metadata libavcodec: Don't crash in avcodec_encode_audio if time_base isn't set sunrast: Document the different Sun Raster file format types. sunrast: Add a check for experimental type. libspeexenc: use AVSampleFormat instead of deprecated/removed SampleFormat lavf: remove disabled FF_API_SET_PTS_INFO cruft lavf: remove disabled FF_API_OLD_INTERRUPT_CB cruft lavf: remove disabled FF_API_REORDER_PRIVATE cruft lavf: remove disabled FF_API_SEEK_PUBLIC cruft lavf: remove disabled FF_API_STREAM_COPY cruft lavf: remove disabled FF_API_PRELOAD cruft lavf: remove disabled FF_API_NEW_STREAM cruft lavf: remove disabled FF_API_RTSP_URL_OPTIONS cruft lavf: remove disabled FF_API_MUXRATE cruft lavf: remove disabled FF_API_FILESIZE cruft lavf: remove disabled FF_API_TIMESTAMP cruft lavf: remove disabled FF_API_LOOP_OUTPUT cruft lavf: remove disabled FF_API_LOOP_INPUT cruft lavf: remove disabled FF_API_AVSTREAM_QUALITY cruft ... Conflicts: doc/APIchanges libavcodec/8bps.c libavcodec/avcodec.h libavcodec/libx264.c libavcodec/mjpegbdec.c libavcodec/options.c libavcodec/sunrast.c libavcodec/utils.c libavcodec/version.h libavcodec/x86/h264_deblock.asm libavdevice/libdc1394.c libavdevice/v4l2.c libavformat/avformat.h libavformat/avio.c libavformat/avio.h libavformat/aviobuf.c libavformat/dv.c libavformat/mov.c libavformat/utils.c libavformat/version.h libavformat/wtv.c libavutil/Makefile libavutil/file.c libswscale/x86/input.asm libswscale/x86/swscale_mmx.c libswscale/x86/swscale_template.c tests/ref/lavf/ffm Merged-by: Michael Niedermayer <michaelni@gmx.at>
250 lines
7.5 KiB
C
250 lines
7.5 KiB
C
/*
|
|
* RAW demuxers
|
|
* Copyright (c) 2001 Fabrice Bellard
|
|
* Copyright (c) 2005 Alex Beregszaszi
|
|
*
|
|
* 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"
|
|
#include "internal.h"
|
|
#include "avio_internal.h"
|
|
#include "rawdec.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/parseutils.h"
|
|
#include "libavutil/pixdesc.h"
|
|
|
|
/* raw input */
|
|
int ff_raw_read_header(AVFormatContext *s)
|
|
{
|
|
AVStream *st;
|
|
enum CodecID id;
|
|
|
|
st = avformat_new_stream(s, NULL);
|
|
if (!st)
|
|
return AVERROR(ENOMEM);
|
|
|
|
id = s->iformat->value;
|
|
if (id == CODEC_ID_RAWVIDEO) {
|
|
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
|
} else {
|
|
st->codec->codec_type = AVMEDIA_TYPE_AUDIO;
|
|
}
|
|
st->codec->codec_id = id;
|
|
|
|
switch(st->codec->codec_type) {
|
|
case AVMEDIA_TYPE_AUDIO: {
|
|
RawAudioDemuxerContext *s1 = s->priv_data;
|
|
|
|
st->codec->channels = 1;
|
|
|
|
if (id == CODEC_ID_ADPCM_G722)
|
|
st->codec->sample_rate = 16000;
|
|
|
|
if (s1 && s1->sample_rate)
|
|
st->codec->sample_rate = s1->sample_rate;
|
|
if (st->codec->sample_rate <= 0) {
|
|
av_log(s, AV_LOG_WARNING, "Invalid sample rate %d specified using default of 44100\n",
|
|
st->codec->sample_rate);
|
|
st->codec->sample_rate= 44100;
|
|
}
|
|
|
|
if (s1 && s1->channels)
|
|
st->codec->channels = s1->channels;
|
|
|
|
st->codec->bits_per_coded_sample = av_get_bits_per_sample(st->codec->codec_id);
|
|
assert(st->codec->bits_per_coded_sample > 0);
|
|
st->codec->block_align = st->codec->bits_per_coded_sample*st->codec->channels/8;
|
|
avpriv_set_pts_info(st, 64, 1, st->codec->sample_rate);
|
|
break;
|
|
}
|
|
case AVMEDIA_TYPE_VIDEO: {
|
|
FFRawVideoDemuxerContext *s1 = s->priv_data;
|
|
int width = 0, height = 0, ret = 0;
|
|
enum PixelFormat pix_fmt;
|
|
AVRational framerate;
|
|
|
|
if (s1->video_size && (ret = av_parse_video_size(&width, &height, s1->video_size)) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Couldn't parse video size.\n");
|
|
goto fail;
|
|
}
|
|
if ((pix_fmt = av_get_pix_fmt(s1->pixel_format)) == PIX_FMT_NONE) {
|
|
av_log(s, AV_LOG_ERROR, "No such pixel format: %s.\n", s1->pixel_format);
|
|
ret = AVERROR(EINVAL);
|
|
goto fail;
|
|
}
|
|
if ((ret = av_parse_video_rate(&framerate, s1->framerate)) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s1->framerate);
|
|
goto fail;
|
|
}
|
|
avpriv_set_pts_info(st, 64, framerate.den, framerate.num);
|
|
st->codec->width = width;
|
|
st->codec->height = height;
|
|
st->codec->pix_fmt = pix_fmt;
|
|
fail:
|
|
return ret;
|
|
}
|
|
default:
|
|
return -1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define RAW_PACKET_SIZE 1024
|
|
|
|
int ff_raw_read_partial_packet(AVFormatContext *s, AVPacket *pkt)
|
|
{
|
|
int ret, size;
|
|
|
|
size = RAW_PACKET_SIZE;
|
|
|
|
if (av_new_packet(pkt, size) < 0)
|
|
return AVERROR(ENOMEM);
|
|
|
|
pkt->pos= avio_tell(s->pb);
|
|
pkt->stream_index = 0;
|
|
ret = ffio_read_partial(s->pb, pkt->data, size);
|
|
if (ret < 0) {
|
|
av_free_packet(pkt);
|
|
return ret;
|
|
}
|
|
av_shrink_packet(pkt, ret);
|
|
return ret;
|
|
}
|
|
|
|
int ff_raw_audio_read_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 = s->iformat->value;
|
|
st->need_parsing = AVSTREAM_PARSE_FULL;
|
|
st->start_time = 0;
|
|
/* the parameters will be extracted from the compressed bitstream */
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* MPEG-1/H.263 input */
|
|
int ff_raw_video_read_header(AVFormatContext *s)
|
|
{
|
|
AVStream *st;
|
|
FFRawVideoDemuxerContext *s1 = s->priv_data;
|
|
AVRational framerate;
|
|
int ret = 0;
|
|
|
|
|
|
st = avformat_new_stream(s, NULL);
|
|
if (!st) {
|
|
ret = AVERROR(ENOMEM);
|
|
goto fail;
|
|
}
|
|
|
|
st->codec->codec_type = AVMEDIA_TYPE_VIDEO;
|
|
st->codec->codec_id = s->iformat->value;
|
|
st->need_parsing = AVSTREAM_PARSE_FULL;
|
|
|
|
if ((ret = av_parse_video_rate(&framerate, s1->framerate)) < 0) {
|
|
av_log(s, AV_LOG_ERROR, "Could not parse framerate: %s.\n", s1->framerate);
|
|
goto fail;
|
|
}
|
|
|
|
st->codec->time_base = (AVRational){framerate.den, framerate.num};
|
|
avpriv_set_pts_info(st, 64, 1, 1200000);
|
|
|
|
fail:
|
|
return ret;
|
|
}
|
|
|
|
/* Note: Do not forget to add new entries to the Makefile as well. */
|
|
|
|
#define OFFSET(x) offsetof(FFRawVideoDemuxerContext, x)
|
|
#define DEC AV_OPT_FLAG_DECODING_PARAM
|
|
const AVOption ff_rawvideo_options[] = {
|
|
{ "framerate", "", OFFSET(framerate), AV_OPT_TYPE_STRING, {.str = "25"}, 0, 0, DEC},
|
|
{ NULL },
|
|
};
|
|
|
|
#if CONFIG_G722_DEMUXER
|
|
AVInputFormat ff_g722_demuxer = {
|
|
.name = "g722",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw G.722"),
|
|
.read_header = ff_raw_read_header,
|
|
.read_packet = ff_raw_read_partial_packet,
|
|
.flags= AVFMT_GENERIC_INDEX,
|
|
.extensions = "g722,722",
|
|
.value = CODEC_ID_ADPCM_G722,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_LATM_DEMUXER
|
|
AVInputFormat ff_latm_demuxer = {
|
|
.name = "latm",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw LOAS/LATM"),
|
|
.read_header = ff_raw_audio_read_header,
|
|
.read_packet = ff_raw_read_partial_packet,
|
|
.flags= AVFMT_GENERIC_INDEX,
|
|
.extensions = "latm",
|
|
.value = CODEC_ID_AAC_LATM,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_MJPEG_DEMUXER
|
|
FF_DEF_RAWVIDEO_DEMUXER(mjpeg, "raw MJPEG video", NULL, "mjpg,mjpeg,mpo", CODEC_ID_MJPEG)
|
|
#endif
|
|
|
|
#if CONFIG_MLP_DEMUXER
|
|
AVInputFormat ff_mlp_demuxer = {
|
|
.name = "mlp",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw MLP"),
|
|
.read_header = ff_raw_audio_read_header,
|
|
.read_packet = ff_raw_read_partial_packet,
|
|
.flags= AVFMT_GENERIC_INDEX,
|
|
.extensions = "mlp",
|
|
.value = CODEC_ID_MLP,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_TRUEHD_DEMUXER
|
|
AVInputFormat ff_truehd_demuxer = {
|
|
.name = "truehd",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw TrueHD"),
|
|
.read_header = ff_raw_audio_read_header,
|
|
.read_packet = ff_raw_read_partial_packet,
|
|
.flags= AVFMT_GENERIC_INDEX,
|
|
.extensions = "thd",
|
|
.value = CODEC_ID_TRUEHD,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_SHORTEN_DEMUXER
|
|
AVInputFormat ff_shorten_demuxer = {
|
|
.name = "shn",
|
|
.long_name = NULL_IF_CONFIG_SMALL("raw Shorten"),
|
|
.read_header = ff_raw_audio_read_header,
|
|
.read_packet = ff_raw_read_partial_packet,
|
|
.flags = AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK,
|
|
.extensions = "shn",
|
|
.value = CODEC_ID_SHORTEN,
|
|
};
|
|
#endif
|
|
|
|
#if CONFIG_VC1_DEMUXER
|
|
FF_DEF_RAWVIDEO_DEMUXER(vc1, "raw VC-1", NULL, "vc1", CODEC_ID_VC1)
|
|
#endif
|