FFmpeg/libavformat/rawdec.c
Michael Niedermayer ac627b3d38 Merge commit '716d413c13981da15323c7a3821860536eefdbbb'
* commit '716d413c13981da15323c7a3821860536eefdbbb':
  Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat

Conflicts:
	doc/examples/muxing.c
	ffmpeg.h
	ffmpeg_filter.c
	ffmpeg_opt.c
	ffplay.c
	ffprobe.c
	libavcodec/8bps.c
	libavcodec/aasc.c
	libavcodec/aura.c
	libavcodec/avcodec.h
	libavcodec/avs.c
	libavcodec/bfi.c
	libavcodec/bmp.c
	libavcodec/bmpenc.c
	libavcodec/c93.c
	libavcodec/cscd.c
	libavcodec/cyuv.c
	libavcodec/dpx.c
	libavcodec/dpxenc.c
	libavcodec/eatgv.c
	libavcodec/escape124.c
	libavcodec/ffv1.c
	libavcodec/flashsv.c
	libavcodec/fraps.c
	libavcodec/h264.c
	libavcodec/huffyuv.c
	libavcodec/iff.c
	libavcodec/imgconvert.c
	libavcodec/indeo3.c
	libavcodec/kmvc.c
	libavcodec/libopenjpegdec.c
	libavcodec/libopenjpegenc.c
	libavcodec/libx264.c
	libavcodec/ljpegenc.c
	libavcodec/mjpegdec.c
	libavcodec/mjpegenc.c
	libavcodec/motionpixels.c
	libavcodec/mpeg12.c
	libavcodec/mpeg12enc.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo_enc.c
	libavcodec/pamenc.c
	libavcodec/pcxenc.c
	libavcodec/pgssubdec.c
	libavcodec/pngdec.c
	libavcodec/pngenc.c
	libavcodec/pnm.c
	libavcodec/pnmdec.c
	libavcodec/pnmenc.c
	libavcodec/ptx.c
	libavcodec/qdrw.c
	libavcodec/qpeg.c
	libavcodec/qtrleenc.c
	libavcodec/raw.c
	libavcodec/rawdec.c
	libavcodec/rl2.c
	libavcodec/sgidec.c
	libavcodec/sgienc.c
	libavcodec/snowdec.c
	libavcodec/snowenc.c
	libavcodec/sunrast.c
	libavcodec/targa.c
	libavcodec/targaenc.c
	libavcodec/tiff.c
	libavcodec/tiffenc.c
	libavcodec/tmv.c
	libavcodec/truemotion2.c
	libavcodec/utils.c
	libavcodec/vb.c
	libavcodec/vp3.c
	libavcodec/wnv1.c
	libavcodec/xl.c
	libavcodec/xwddec.c
	libavcodec/xwdenc.c
	libavcodec/yop.c
	libavdevice/v4l2.c
	libavdevice/x11grab.c
	libavfilter/avfilter.c
	libavfilter/avfilter.h
	libavfilter/buffersrc.c
	libavfilter/drawutils.c
	libavfilter/formats.c
	libavfilter/src_movie.c
	libavfilter/vf_ass.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_fade.c
	libavfilter/vf_format.c
	libavfilter/vf_hflip.c
	libavfilter/vf_lut.c
	libavfilter/vf_overlay.c
	libavfilter/vf_pad.c
	libavfilter/vf_scale.c
	libavfilter/vf_transpose.c
	libavfilter/vf_yadif.c
	libavfilter/video.c
	libavfilter/vsrc_testsrc.c
	libavformat/movenc.c
	libavformat/mxf.h
	libavformat/utils.c
	libavformat/yuv4mpeg.c
	libavutil/imgutils.c
	libavutil/pixdesc.c
	libswscale/input.c
	libswscale/output.c
	libswscale/swscale_internal.h
	libswscale/swscale_unscaled.c
	libswscale/utils.c
	libswscale/x86/swscale_template.c
	libswscale/x86/yuv2rgb.c
	libswscale/x86/yuv2rgb_template.c
	libswscale/yuv2rgb.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2012-10-08 21:06:57 +02:00

251 lines
7.6 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"
#include "libavutil/avassert.h"
/* raw input */
int ff_raw_read_header(AVFormatContext *s)
{
AVStream *st;
enum AVCodecID id;
st = avformat_new_stream(s, NULL);
if (!st)
return AVERROR(ENOMEM);
id = s->iformat->raw_codec_id;
if (id == AV_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 == AV_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);
av_assert0(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 AVPixelFormat 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)) == AV_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->raw_codec_id;
st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
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->raw_codec_id;
st->need_parsing = AVSTREAM_PARSE_FULL_RAW;
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 = av_inv_q(framerate);
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",
.raw_codec_id = AV_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",
.raw_codec_id = AV_CODEC_ID_AAC_LATM,
};
#endif
#if CONFIG_MJPEG_DEMUXER
FF_DEF_RAWVIDEO_DEMUXER(mjpeg, "raw MJPEG video", NULL, "mjpg,mjpeg,mpo", AV_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",
.raw_codec_id = AV_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",
.raw_codec_id = AV_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",
.raw_codec_id = AV_CODEC_ID_SHORTEN,
};
#endif
#if CONFIG_VC1_DEMUXER
FF_DEF_RAWVIDEO_DEMUXER(vc1, "raw VC-1", NULL, "vc1", AV_CODEC_ID_VC1)
#endif