FFmpeg

Commit Graph

Author	SHA1	Message	Date
Carl Eugen Hoyos	4d8875ec23	lavf: Constify the probe function argument. Reviewed-by: Lauri Kasanen Reviewed-by: Tomas Härdin	6 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
Diego Biurrun	daf8cf358a	avformat: Don't anonymously typedef structs	10 years ago
James Almer	d34ec64a22	replace calls to url_feof() with avio_feof() Signed-off-by: James Almer <jamrial@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	11 years ago
Paul B Mahol	70daeacd6e	PAF demuxer and decoder Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com> Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	11 years ago
Michael Niedermayer	f58cd2867a	avformat/paf: Fix integer overflow and out of array read Found-by: Laurent Butti <laurentb@gmail.com> Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	12 years ago
Paul B Mahol	09a0392341	paf: set channel layout Signed-off-by: Paul B Mahol <onemda@gmail.com>	12 years ago
Michael Niedermayer	693097c355	paf: avoid C99 overflows Signed-off-by: Michael Niedermayer <michaelni@gmx.at>	13 years ago
Paul B Mahol	d84dd35f8e	paf: fix audio packet duration Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Paul B Mahol	26fa84105b	paf: properly flag video packets Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago
Paul B Mahol	7de4a16508	PAF demuxer and decoder Signed-off-by: Paul B Mahol <onemda@gmail.com>	13 years ago

15 Commits (a27c0781ddede0176063c43ec97ea4152ef4c8bc)