FFmpeg git repo
Go to file
Rémi Denis-Courmont f576a0835b lavc/aacpsdsp: rework R-V V hybrid_synthesis_deint
Given the size of the data set, strided memory accesses cannot be avoided.
We can still do better than the current code.

ps_hybrid_synthesis_deint_c:       12065.5
ps_hybrid_synthesis_deint_rvv_i32: 13650.2 (before)
ps_hybrid_synthesis_deint_rvv_i64:  8181.0 (after)
2023-11-12 14:03:09 +02:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
doc avfilter/avf_showcwt: add fm frequency scaler 2023-11-11 01:19:44 +01:00
ffbuild ffbuild: Add gzip -n flag to fix reproducible builds 2023-11-05 11:30:13 +01:00
fftools fftools/ffmpeg_filter: return an error on ofilter_alloc() failure 2023-11-09 11:25:17 +01:00
libavcodec lavc/aacpsdsp: rework R-V V hybrid_synthesis_deint 2023-11-12 14:03:09 +02:00
libavdevice avdevice/android_camera: fix build failure due to typo 2023-11-07 11:10:07 +08:00
libavfilter avfilter/vf_colortemperature: add gbr(a)pf support 2023-11-12 02:39:44 +01:00
libavformat avformat/hlsenc: Fix name of flag in error message 2023-11-12 16:47:40 +08:00
libavutil lavu/log: do not assume AVClass.item_name is always set 2023-11-09 11:25:17 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswscale swscale/yuv2rgb: fix sws_getCoefficients for colorspace=0 2023-11-09 12:53:35 +01:00
presets
tests avcodec/pnm: explicitly tag color range 2023-11-09 12:53:35 +01:00
tools tools/target_dec_fuzzer: Adjust threshold for CSCD 2023-11-01 16:40:21 +01:00
.gitattributes
.gitignore
.mailmap mailmap: remap my email accounts 2023-11-03 20:57:49 +08:00
.travis.yml
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
Changelog avcodec: LEAD MCMP decoder 2023-11-08 17:37:58 +11:00
INSTALL.md
LICENSE.md
MAINTAINERS MAINTAINERS: add myself as a mediacodec and videotoolbox maintainer 2023-11-08 16:15:04 +08:00
Makefile tools: Don't include the direct library names when linking 2023-10-02 22:49:07 +03:00
README.md
RELEASE
configure avcodec: LEAD MCMP decoder 2023-11-08 17:37:58 +11:00

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.