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e1b6ecd20a
loongson_asm.S is LoongArch asm optimization helper. Add functions: ff_h264_idct_add_8_lsx ff_h264_idct8_add_8_lsx ff_h264_idct_dc_add_8_lsx ff_h264_idct8_dc_add_8_lsx ff_h264_idct_add16_8_lsx ff_h264_idct8_add4_8_lsx ff_h264_idct_add8_8_lsx ff_h264_idct_add8_422_8_lsx ff_h264_idct_add16_intra_8_lsx ff_h264_luma_dc_dequant_idct_8_lsx Replaced function(LSX is sufficient for these functions): ff_h264_idct_add_lasx ff_h264_idct4x4_addblk_dc_lasx ff_h264_idct_add16_lasx ff_h264_idct8_add4_lasx ff_h264_idct_add8_lasx ff_h264_idct_add8_422_lasx ff_h264_idct_add16_intra_lasx ff_h264_deq_idct_luma_dc_lasx Renamed functions: ff_h264_idct8_addblk_lasx ==> ff_h264_idct8_add_8_lasx ff_h264_idct8_dc_addblk_lasx ==> ff_h264_idct8_dc_add_8_lasx ./configure --disable-lasx ffmpeg -i 1_h264_1080p_30fps_3Mbps.mp4 -f rawvideo -y /dev/null -an before: 155fps after: 161fps Reviewed-by: Shiyou Yin <yinshiyou-hf@loongson.cn> Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
FFmpeg README
FFmpeg 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 means to alter decoded audio and video through a directed graph of connected filters.libavdeviceprovides an abstraction to access capture and playback devices.libswresampleimplements audio mixing and resampling routines.libswscaleimplements color conversion and scaling routines.
Tools
- ffmpeg is a command line toolbox to manipulate, convert and stream multimedia content.
- ffplay is a minimalistic multimedia player.
- ffprobe is a simple analysis 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
Coding examples are available in the doc/examples directory.
License
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under GPL. Please refer to the LICENSE file for detailed information.
Contributing
Patches should be submitted to the ffmpeg-devel mailing list using
git format-patch or git send-email. Github pull requests should be
avoided because they are not part of our review process and will be ignored.