FFmpeg

Commit Graph

Author	SHA1	Message	Date
wm4	173b56218f	lavf: make avio_read_partial() public Main use-case is proxying avio through a foreign I/O layer and a custom AVIO context, without losing latency and performance characteristics. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	7 years ago
Anton Khirnov	9200514ad8	lavf: replace AVStream.codec with AVStream.codecpar Currently, AVStream contains an embedded AVCodecContext instance, which is used by demuxers to export stream parameters to the caller and by muxers to receive stream parameters from the caller. It is also used internally as the codec context that is passed to parsers. In addition, it is also widely used by the callers as the decoding (when demuxer) or encoding (when muxing) context, though this has been officially discouraged since Libav 11. There are multiple important problems with this approach: - the fields in AVCodecContext are in general one of * stream parameters * codec options * codec state However, it's not clear which ones are which. It is consequently unclear which fields are a demuxer allowed to set or a muxer allowed to read. This leads to erratic behaviour depending on whether decoding or encoding is being performed or not (and whether it uses the AVStream embedded codec context). - various synchronization issues arising from the fact that the same context is used by several different APIs (muxers/demuxers, parsers, bitstream filters and encoders/decoders) simultaneously, with there being no clear rules for who can modify what and the different processes being typically delayed with respect to each other. - avformat_find_stream_info() making it necessary to support opening and closing a single codec context multiple times, thus complicating the semantics of freeing various allocated objects in the codec context. Those problems are resolved by replacing the AVStream embedded codec context with a newly added AVCodecParameters instance, which stores only the stream parameters exported by the demuxers or read by the muxers.	9 years ago
Luca Barbato	ce70f28a17	avpacket: Replace av_free_packet with av_packet_unref `av_packet_unref` matches the AVFrame ref-counted API and can be used as a drop in replacement. Deprecate `av_free_packet`.	9 years ago
Vittorio Giovara	059a934806	lavc: Consistently prefix input buffer defines Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>	9 years ago
Luca Barbato	4f5906a1d7	latm: Do not give a score for a single instance Bug-Id: 773 CC: libav-stable@libav.org	10 years ago
Luca Barbato	f66d0c57b1	latm: Add a probe function	11 years ago
Anton Khirnov	85a5bc054c	lavf: remove disabled FF_API_R_FRAME_RATE cruft	12 years ago
Janne Grunau	54c7fe6d68	raw demuxer: initialize end of partial packets	12 years ago
Luca Barbato	587874ef1c	rawdec: remove ff_raw_read_header It is not used anymore and is a kludge.	12 years ago
Luca Barbato	5f0e161dd6	g722: refactor out of rawdec.c	12 years ago
Anton Khirnov	716d413c13	Replace PIX_FMT_* -> AV_PIX_FMT_*, PixelFormat -> AVPixelFormat	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Anton Khirnov	aba232cfa9	lavf: deprecate r_frame_rate. According to its description, it is supposed to be the LCM of all the frame durations. The usability of such a thing is vanishingly small, especially since we cannot determine it with any amount of reliability. Therefore get rid of it after the next bump. Replace it with the average framerate where it makes sense. FATE results for the wtv and xmv demux tests change. In the wtv case this is caused by the file being corrupted (or possibly badly cut) and containing invalid timestamps. This results in lavf estimating the framerate wrong and making up wrong frame durations. In the xmv case the file contains pts jumps, so again the estimated framerate is far from anything sane and lavf again makes up different frame durations. In some other tests lavf starts making up frame durations from different frame.	12 years ago
Martin Storsjö	20234a4bd7	cosmetics: Align muxer/demuxer declarations Also add missing trailing commas, break long codec_tag lines and add spaces in codec_tag declarations. Signed-off-by: Martin Storsjö <martin@martin.st>	13 years ago
Anton Khirnov	87d7a92b62	rawdec: set timebase to 1/fps.	13 years ago
Anton Khirnov	f7fe41a04f	lavf: rename AVInputFormat.value to raw_codec_id. It's only used by raw demuxers for storing the codec id.	13 years ago
Anton Khirnov	6e9651d106	lavf: remove AVFormatParameters from AVFormatContext.read_header signature	13 years ago
Reimar Döffinger	c914038d38	rawdec: Set start_time to 0 for raw audio files. None of the raw audio files have timestamps, thus setting start_time to 0 should be reasonable. Signed-off-by: Anton Khirnov <anton@khirnov.net>	13 years ago
Anton Khirnov	e745d7525a	rawdec: don't set codec timebase. It's not supposed to be set outside of lavc. Set r_frame_rate and avg_frame_rate instead.	13 years ago
Anton Khirnov	c3f9ebf743	lavf: make av_set_pts_info private. It's supposed to be called only from (de)muxers.	13 years ago
Justin Ruggles	87c57d807f	Create separate functions for the raw GSM demuxer. Put the new raw GSM demuxer in its own file. Fixes raw GSM demuxing.	13 years ago
Anton Khirnov	3b3bbdd3e6	lavf,lavd: replace av_new_stream->avformat_new_stream part I. Trivial replacements with sed are done in this commit: sed 's/av_new_stream(\([^)]*\), 0)/avformat_new_stream(\1, NULL)/'	13 years ago
Justin Ruggles	e32dfdaa8d	shn: do not allow seeking in the raw shn demuxer. The demuxer does not read the seektable, a parser is not possible without a full decode, and no shorten decoder can handle random seeking because it needs side info from the seektable.	13 years ago
Anton Khirnov	145f741e11	AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*	13 years ago
Janne Grunau	dcb9f6a20d	Add LATM demuxer This is a raw demuxer for the AAC LATM decoder and thus limited to single stream LOAS.	13 years ago
Anton Khirnov	85d982f1e2	rawdec: refactor private option for raw video demuxers pixel_format/video_size only apply to 'rawvideo' (==uncompressed) demuxer and make no sense for the other raw (== containerless) demuxers. Keep only the framerate option for those. Also use unique classes for all raw video demuxers	13 years ago
Anton Khirnov	34d2bf30a0	pcmdec: use unique classes for all pcm demuxers.	13 years ago
Anton Khirnov	d906f49aa8	rawdec: g722 is always 1 channel/16kHz	13 years ago
Anton Khirnov	c14fe6bc99	lavf,lavd: remove all usage of AVFormatParameters from demuxers. AVFormatParameters are converted into corresponding private options in av_open_input_file/stream() compat wrappers, so accessing them from demuxers is redundant.	13 years ago
Anton Khirnov	dfc2c4d900	lavf: use designated initialisers for all (de)muxers. It's more readable and less prone to breakage.	14 years ago
Anton Khirnov	367732832f	lavf,lavc: free avoptions in a generic way. It's simpler and less error-prone. Fixes some memleaks along the way.	14 years ago
Anton Khirnov	e762b1ce95	rawdec: add framerate private option.	14 years ago
Anton Khirnov	1f94c31f69	rawdec: initialize return value to 0.	14 years ago
Anton Khirnov	a606aa7570	rawdec: don't leak option strings.	14 years ago
Anton Khirnov	2a85f21868	rawdec: add a pixel_format private option.	14 years ago
Anton Khirnov	fa4924a358	rawdec: factor video demuxer definitions into a macro.	14 years ago
Anton Khirnov	973f686a6c	rawdec: add video_size private option.	14 years ago
Anton Khirnov	bffd4dd1d3	lavf: deprecate AVFormatParameters.{channels,sample_rate}.	14 years ago
Anton Khirnov	5b3865fc5f	rawdec: add sample_rate/channels private options.	14 years ago
Mans Rullgard	2912e87a6c	Replace FFmpeg with Libav in licence headers Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Anton Khirnov	a2704c9712	avio: add avio_tell macro as a replacement for url_ftell Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	b3db9ceef1	avio: make get_partial_buffer internal. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Diego Elio Pettenò	c6610a216e	Prefix all _demuxer, _muxer, _protocol from libavformat and libavdevice. This also lists the objects from those two libraries as internal (by adding the ff_ prefix) so that they can then be hidden via linker scripts.	14 years ago
Martin Storsjö	9013560f13	Add a muxer and demuxer for raw G.722 Originally committed as revision 25087 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	4ca31edcfe	split raw.c into rawdec.c and rawenc.c Originally committed as revision 24997 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	92aa28d292	move raw video demuxer to its own file Originally committed as revision 24996 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	f1714d5846	move pcm muxers to their own file Originally committed as revision 24995 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	e94204dfd8	move pcm demuxers to their own file Originally committed as revision 24993 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	4bc16e83a7	simplify code by using the AV_NE() macro Originally committed as revision 24986 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Aurelien Jacobs	8f3890404c	move null muxer to its own file Originally committed as revision 24985 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago

45 Commits (2d6b3f3a9dce409ca51d70ef4b85c0593bb4b109)