b115a35ea6
When using GPU surfaces with QSV, one needs to supply a frame allocator, which will be invoked to pass surface pools to libmfx. For encoding, this allocator gets invoked not only for the pool of input frames, but also for a separate pool of (apparently) reconstructed frames and another pool of MFX_FOURCC_P8, which on Windows needs to return D3DFMT_P8 D3D surfaces. Those are probably used to store the encoded bitstream on the GPU. Signed-off-by: Maxym Dmytrychenko <maxym.dmytrychenko@intel.com>
Libav
Libav is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.
Libraries
libavcodecprovides implementation of a wider range of codecs.libavformatimplements streaming protocols, container formats and basic I/O access.libavutilincludes hashers, decompressors and miscellaneous utility functions.libavfilterprovides a mean to alter decoded Audio and Video through chain of filters.libavdeviceprovides an abstraction to access capture and playback devices.libavresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- avconv is a command line toolbox to manipulate, convert and stream multimedia content.
- avplay is a minimalistic multimedia player.
- avprobe is a simple analisys tool to inspect multimedia content.
- Additional small tools such as
aviocat,ismindexandqt-faststart.
Documentation
The offline documentation is available in the doc/ directory.
The online documentation is available in the main website and in the wiki.
Examples
Conding examples are available in the doc/example directory.
License
Libav codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.