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
Luca Barbato	ce70f28a17	avpacket: Replace av_free_packet with av_packet_unref `av_packet_unref` matches the AVFrame ref-counted API and can be used as a drop in replacement. Deprecate `av_free_packet`.	9 years ago
Diego Biurrun	c201069fac	avdevice: Add missing header for NULL_IF_CONFIG_SMALL Also reshuffle headers into canonical order where appropriate.	10 years ago
Luca Barbato	404731bd20	pulse: Set the wallclock option as default	10 years ago
Luca Barbato	424b929b5c	pulse: Add a wallclock option to be compatible with other other captures alsa and x11grab use av_gettime() to report timestamps. Bug-Id: 647	10 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
Diego Biurrun	e873c03ac7	misc Doxygen markup improvements	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
Luca Barbato	2625b621ce	pulse: compute frame_duration once and fix it The frame duration was calculated without taking in account the bytes per sample. Thanks to Lorenzo Pistone <blaffablaffa@gmail.com> for pointing the issue and providing an initial fix.	13 years ago
Luca Barbato	0de9c41ff4	pulse: introduce pulseaudio input It currently use the simple api and is using the latency information provided only to offset the stream start. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>	13 years ago

12 Commits (ec9f04423b82afa323e90f5b2c677be74302c1fd)