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* lavf: replace AVStream.codec with AVStream.codecparAnton Khirnov2016-02-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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.
* lavc: Consistently prefix input buffer definesVittorio Giovara2015-07-27
| | | | Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>
* xcbgrab: Explicitly include xcb/shape.hLuca Barbato2015-07-06
| | | | Found-By: Cheristheus
* xcbgrab: Accept geometries matching the screen sizeNicolas George2015-05-06
| | | | Introduced in e8c4db0d4d077.
* xcbgrab: Validate the capture areaLuca Barbato2015-04-30
| | | | | | And notify why the capture is impossible. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* xcbgrab: Do not assume the non shm image data is always availableLuca Barbato2015-04-30
| | | | Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* avdevice: Add missing header for NULL_IF_CONFIG_SMALLDiego Biurrun2015-04-09
| | | | Also reshuffle headers into canonical order where appropriate.
* xcbgrab: Check av_strdup() allocationVittorio Giovara2015-03-12
| | | | Bug-Id: CID 1274038
* xcbgrab: Free the host string after checking the connectionLuca Barbato2015-03-08
| | | | | | | Prevent an use after free in the error message. Bug-Id: CID 1274040 CC: libav-stable@libav.org
* xcbgrab: Unbreak parsing filename optionsLuca Barbato2015-02-24
| | | | | | CC: libav-stable@libav.org Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* xcbgrab: Provide better names for the y and x optionLuca Barbato2015-02-24
| | | | | | | | | | Incidentally `-y` also collides with avconv global options. Update x11grab to match and document the option. CC: libav-stable@libav.org Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* xcbgrab: Use the correct geometry for the region highlightDaniel Moran2015-02-15
| | | | | | | The feature is implemented using a transparent window and drawing inside it a rectangle filling the whole window to highlight it. Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
* xcbgrab: Correctly make shm optionalLuca Barbato2015-02-15
| | | | | The segment field in the struct has to be conditionally build as well.
* xcbgrab: Move NULL check before pointer dereferenceVittorio Giovara2014-12-18
| | | | Bug-Id: CID 1254668
* xcbgrab: Support empty filename string correctlyLuca Barbato2014-12-10
| | | | | Bug-Id: CID 1254664 CC: libav-stable@libav.org
* xcbgrab: XCB-based screen captureLuca Barbato2014-10-26
Matches the x11grab screen capture by features.
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