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
Anton Khirnov	d2d67e424f	Remove all uses of now deprecated metadata functions.	14 years ago
Mans Rullgard	e65ab9d94f	Remove unused variables	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	45a8a02a41	lavf: replace avio_seek(SEEK_CUR) with avio_skip where it makes sense 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	e356fc57a2	lavf: replace all uses of url_fskip with avio_seek 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
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	0459bf2d02	Add ff_sauce_read() Originally committed as revision 24300 to svn://svn.ffmpeg.org/ffmpeg/trunk	15 years ago

12 Commits (edbf0fffb15dde7a1de70b05855529d5fc769f14)