ffmpeg/FFmpeg
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Logan Lyu b7a3150bc5 lavc/aarch64: new optimization for 8-bit hevc_epel_uni_hv 
checkasm bench:
put_hevc_epel_uni_hv4_8_c: 204.7
put_hevc_epel_uni_hv4_8_i8mm: 70.2
put_hevc_epel_uni_hv6_8_c: 378.2
put_hevc_epel_uni_hv6_8_i8mm: 131.9
put_hevc_epel_uni_hv8_8_c: 637.7
put_hevc_epel_uni_hv8_8_i8mm: 137.9
put_hevc_epel_uni_hv12_8_c: 1301.9
put_hevc_epel_uni_hv12_8_i8mm: 314.2
put_hevc_epel_uni_hv16_8_c: 2203.4
put_hevc_epel_uni_hv16_8_i8mm: 454.7
put_hevc_epel_uni_hv24_8_c: 4848.2
put_hevc_epel_uni_hv24_8_i8mm: 1065.2
put_hevc_epel_uni_hv32_8_c: 8517.4
put_hevc_epel_uni_hv32_8_i8mm: 1898.4
put_hevc_epel_uni_hv48_8_c: 19591.7
put_hevc_epel_uni_hv48_8_i8mm: 4107.2
put_hevc_epel_uni_hv64_8_c: 33880.2
put_hevc_epel_uni_hv64_8_i8mm: 6568.7

Co-Authored-By: J. Dekker <jdek@itanimul.li>
Signed-off-by: Martin Storsjö <martin@martin.st>
2023-09-26 15:50:44 +03:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc pixdesc: add limited|full aliases for -color_range parameter 2023-09-23 15:58:14 +01:00
ffbuild
fftools fftools/ffmpeg: deprecate the -top option 2023-09-18 17:16:06 +02:00
libavcodec lavc/aarch64: new optimization for 8-bit hevc_epel_uni_hv 2023-09-26 15:50:44 +03:00
libavdevice avdevice/android_camera: fix missing include for usleep 2023-09-19 00:39:47 +08:00
libavfilter avfilter/af_astats: extend and improve bit depth output 2023-09-25 19:07:11 +02:00
libavformat avformat/mov: Avoid cloning encryption info if its unchanged 2023-09-22 23:47:39 +02:00
libavutil avutil/avutil: make AV_TIME_BASE_Q available in C++ 2023-09-19 00:52:21 +08:00
libpostproc
libswresample libswresample/swresample: avoid s16p internal transfer format 2023-09-25 21:41:35 +02:00
libswscale avutil/internal: Don't auto-include emms.h 2023-09-04 11:04:45 +02:00
presets
tests tests/fate-run: Ensure that THREADS=random is actually random 2023-09-25 22:02:24 +02:00
tools tools/target_dec_fuzzer: Adjust threshold for rtv1 2023-09-22 23:47:40 +02:00
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Changelog lavc/vaapi_encode: Add VAAPI AV1 encoder 2023-09-22 13:15:00 +08:00
configure lavc/vaapi_encode: Add VAAPI AV1 encoder 2023-09-22 13:15:00 +08:00
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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.