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28a8b5413b
Add my neon asm from x264 relicensed under the LGPL 2.1 or later. Ported (x264 uses nv12 chroma) and optimized. Cycle count for checkasm --bench on a Snapdragon 820e: h264_h_loop_filter_luma_intra_8bpp_c: 60.0 h264_h_loop_filter_luma_intra_8bpp_neon: 54.2 h264_v_loop_filter_luma_intra_8bpp_c: 148.3 h264_v_loop_filter_luma_intra_8bpp_neon: 73.8 h264_h_loop_filter_chroma_intra_8bpp_c: 27.8 h264_h_loop_filter_chroma_intra_8bpp_neon: 21.4 h264_h_loop_filter_chroma_mbaff_intra_8bpp_c: 15.8 h264_h_loop_filter_chroma_mbaff_intra_8bpp_neon: 15.7 h264_v_loop_filter_chroma_intra_8bpp_c: 45.8 h264_v_loop_filter_chroma_intra_8bpp_neon: 17.3
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.