Chiebot-Mirror/FFmpeg - FFmpeg - Gitea: Git with a cup of tea

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
Martin Storsjö	2b982e92f4	rtpdec: Set need_parsing via a handler field This avoids implementing a full function just to set this one field. Signed-off-by: Martin Storsjö <martin@martin.st>	10 years ago
Gilles Chanteperdrix	22470510d1	avformat/rtpdec_mpeg12: add robust MPEG audio depacketization (RFC 5219) Reviewed-by: Thomas Volkert <silvo@gmx.net> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	10 years ago
Diego Biurrun	7abd35a1ff	avformat: Add av_cold attributes to init functions missing them	12 years ago
Martin Storsjö	c6f1dc8e4c	rtpdec: Move setting the parsing flags to the actual depacketizers This gets rid of almost all the codec specific details from the generic rtpdec code. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago
Martin Storsjö	a9c847c1ba	rtpdec: Split handling of mpeg12 audio/video to a separate depacketizer This also adds checking of mallocs. Signed-off-by: Martin Storsjö <martin@martin.st>	12 years ago