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Grzegorz Bernacki bad67cb9fd lavc/aarch64: Provide optimized implementation of vsse8 for arm64. 
Provide optimized implementation of vsse8 for arm64.

Performance comparison tests are shown below.
- vsse_1_c: 141.5
- vsse_1_neon: 32.5

Benchmarks and tests are run with checkasm tool on AWS Graviton 3.

Signed-off-by: Grzegorz Bernacki <gjb@semihalf.com>
Signed-off-by: Martin Storsjö <martin@martin.st>
2022-10-04 13:24:20 +03:00
compat compat/cuda: switch from powf to __powf intrinsic 2022-09-03 20:27:34 +02:00
doc lavfi/avf_showspatial: add framerate option 2022-10-04 11:55:03 +02:00
ffbuild configure: probe RISC-V Vector extension 2022-09-27 13:19:52 +02:00
fftools fftools/ffmpeg: move some code from init_output_stream() to init_output_stream_encode() 2022-10-04 11:55:03 +02:00
libavcodec lavc/aarch64: Provide optimized implementation of vsse8 for arm64. 2022-10-04 13:24:20 +03:00
libavdevice avformat/internal: Don't include avcodec.h 2022-09-26 03:02:50 +02:00
libavfilter lavfi/avf_showspatial: add framerate option 2022-10-04 11:55:03 +02:00
libavformat avformat/avio: Schedule AVIODirContext to become an opaque type 2022-10-03 23:21:57 +02:00
libavutil lavu/fixed_dsp: add missing av_restrict qualifiers 2022-10-04 10:56:12 +02:00
libpostproc configure: always enable gnu_windres if available 2022-08-13 14:42:36 +02:00
libswresample swsresample/swresample: error out on invalid layouts 2022-09-14 09:52:33 -03:00
libswscale sws/rgb2rgb: RISC-V 64-bit V packed YUYV/UYVY to planar 4:2:2 2022-09-30 07:25:44 +02:00
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tests fate/opus: add silk LBRR test (refs #9890) 2022-10-04 11:54:57 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for Jpeg2000 2022-09-16 21:30:59 +02:00
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configure configure: remove mdct15 from the encoder/decoder's list of requirements 2022-09-28 00:08:48 +02:00
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README.md
RELEASE RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00

README.md

FFmpeg README

FFmpeg is a collection of libraries and tools to process multimedia content such as audio, video, subtitles and related metadata.

Libraries

  • libavcodec provides implementation of a wider range of codecs.
  • libavformat implements streaming protocols, container formats and basic I/O access.
  • libavutil includes hashers, decompressors and miscellaneous utility functions.
  • libavfilter provides means to alter decoded audio and video through a directed graph of connected filters.
  • libavdevice provides an abstraction to access capture and playback devices.
  • libswresample implements audio mixing and resampling routines.
  • libswscale implements 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, ismindex and qt-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.