FFmpeg

Commit Graph

Author	SHA1	Message	Date
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
Diego Biurrun	daf8cf358a	avformat: Don't anonymously typedef structs	10 years ago
Anton Khirnov	6c7d339afc	tty: set avg_frame_rate. The container does not store any timestamps and is CFR-only.	12 years ago
Martin Storsjö	e6153f173a	avopt: Store defaults for AV_OPT_TYPE_INT in the i64 union member Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Anton Khirnov	36ef5369ee	Replace all CODEC_ID_* with AV_CODEC_ID_*	12 years ago
Anton Khirnov	6e9651d106	lavf: remove AVFormatParameters from AVFormatContext.read_header signature	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
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
Anton Khirnov	145f741e11	AVOptions: rename FF_OPT_TYPE_* => AV_OPT_TYPE_*	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	d2d67e424f	Remove all uses of now deprecated metadata functions.	14 years ago
Anton Khirnov	c1dcbfddf9	tty: add framerate private option.	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	8346f60afb	tty: factorise returning error codes.	14 years ago
Anton Khirnov	06d8c9e5f0	tty: add video_size private option.	14 years ago
Anton Khirnov	67540af7ba	tty: replace AVFormatParameters.sample_rate abuse with a private option.	14 years ago
Anton Khirnov	8978fedaee	avio: introduce an AVIOContext.seekable field Use it instead of url_is_streamed and AVIOContext.is_streamed.	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	66e5b1df36	avio: deprecate url_feof AVIOContext.eof_reached should be used directly instead. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	76aa876e69	avio: avio_ prefix for url_fsize Signed-off-by: Ronald S. Bultje <rsbultje@gmail.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	6b4aa5dac8	avio: avio_ prefix for url_fseek Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	b7effd4e83	avio: avio_ prefixes for get_* functions In the name of consistency: get_byte -> avio_r8 get_<type> -> avio_r<type> get_buffer -> avio_read get_partial_buffer will be made private later get_strz is left out becase I want to change it later to return something useful. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	ae628ec1fd	avio: rename ByteIOContext to AVIOContext. Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>	14 years ago
Anton Khirnov	a9d921cbad	tty.c: rename PKT_FLAG_KEY to AV_PKT_FLAG_KEY. Signed-off-by: Mans Rullgard <mans@mansr.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
Mans Rullgard	1e48cdaac3	tty: remove superflous #include <strings.h> Signed-off-by: Mans Rullgard <mans@mansr.com>	14 years ago
Stefano Sabatini	b9f9e59afc	Replace deprecated CODEC_TYPE_AUDIO and CODEC_TYPE_VIDEO with the corresponding AVMEDIA_TYPE_* symbols. Originally committed as revision 25201 to svn://svn.ffmpeg.org/ffmpeg/trunk	14 years ago
Michael Niedermayer	a20df85886	Fix doxy that refers to the wrong variable. Originally committed as revision 24549 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Peter Ross	07e6384dd8	Add doxygen @file comment block Originally committed as revision 24326 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago
Peter Ross	5a71709467	Tele-typewriter demuxer Originally committed as revision 24301 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago

31 Commits (34effe816f9f3df2e6b8bc738e2b5a86a24fd0d7)