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
Clément Bœsch	7308439158	lavf: Don't explicitly flush after each written packet in muxers Since `596e5d4783`, this is not necessary anymore. It also allows to actually disable the flushing, improving write performance (but possibly giving worse latency in real-time streaming). Signed-off-by: Martin Storsjö <martin@martin.st>	11 years ago
Michael Niedermayer	a40370661d	use Kostyas full name in copyrights This fixes 2 files that where not part of the original change See: `de421b2085` Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	f46732fe4d	wvenc: remove flush call, not needed since `4f112a8e3` Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Anton Khirnov	2d2d6a4883	lavf: add a raw WavPack muxer.	12 years ago
Paul B Mahol	269fc8e049	lavf/wvenc: remove hacks since wavpack demuxer & decoder hacks have been fixed	12 years ago
Clément Bœsch	8de9bb6e5e	lavf: remove some flushing in write_packet muxers callbacks. Since `4f112a8e3`, this is not necessary anymore. Also, it allows to actually disable the flushing.	12 years ago
Paul B Mahol	a9b424879f	lavc & lavf: replace deprecated av_log* functions Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	1a61c7a54b	wvenc: multichannel muxing Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	c25dc1f9c7	wvenc: support for ape tags Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Paul B Mahol	a3a0774be8	WavPack muxer	12 years ago

14 Commits (b5cf307d0f85aff434342e41beb33b39df8d553f)