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Martin Storsjö 3dcbcce80c configure: Check for the AArch64 CRC extension 
Name the feature "arm_crc" rather than plain "crc", to make it
clear that this is about a CPU feature extension, not CRC
implementations in general.

This requires dealing with the extension slightly differently
than other extensions, as the name of the feature and the
".arch_extension" extension name differ.

Naming it with an "arm" prefix rather than "aarch64", as the
CPU extension also is available in 32 bit ARM form, even though
we don't intend to use it there.
2026-01-04 15:49:30 +01:00
.forgejo forgejo/workflows: explicitly name all workflows and jobs 2026-01-02 16:56:03 +00:00
compat compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
doc avutil/cpu: add x86 CPU feature flag for clmul 2026-01-04 15:49:30 +01:00
ffbuild configure: add detection of assembler support for SME 2025-12-09 21:38:38 +00:00
fftools fftools/ffmpeg_filter: fix access private API of libavcodec 2025-12-30 07:40:15 +00:00
libavcodec aarch64/hpeldsp_neon: fix out-of-bounds read 2026-01-04 03:22:55 +00:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2025-12-03 23:45:44 +00:00
libavfilter avfilter/tests/drawvg: fix warnings on WIN32 2026-01-04 13:42:20 +00:00
libavformat avformat/file: respect pkt_size even in streaming mode 2026-01-01 18:20:58 +00:00
libavutil configure: Check for the AArch64 CRC extension 2026-01-04 15:49:30 +01:00
libswresample swresample/soxr_resample: pass initialized data to soxr_process() in flush() 2025-12-08 21:31:13 +00:00
libswscale swscale/tests/sws_ops: add optional -src and -dst parameters 2025-12-26 13:14:28 +00:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests tests/checkasm: Add CRC test 2026-01-04 15:49:30 +01:00
tools tools/sofa2wavs: fix build on Windows 2025-11-29 21:43:12 +00:00
.gitattributes gitattributes: End merge conflicts in Changelog 2025-03-17 15:26:10 +01:00
.gitignore .gitignore: Add config_components.asm 2025-11-02 13:10:58 +00:00
.mailmap mailmap: add entry for myself 2025-08-08 21:51:15 +00:00
Changelog avformat/iamf_writer: add support for Projection mode ambisonic Audio elements 2025-12-29 12:02:02 -03:00
configure configure: Check for the AArch64 CRC extension 2026-01-04 15:49:30 +01:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3 Add configure option to upgrade (L)GPL to version 3. 2009-06-05 11:04:03 +00:00
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
FUNDING.json Add FUNDING.json 2025-06-23 14:48:40 +02:00
INSTALL.md all: fix typos found by codespell 2025-08-03 13:48:47 +02:00
LICENSE.md Remove libpostproc 2025-05-07 15:35:47 +02:00
MAINTAINERS MAINTAINERS: Update the entries for AMF 2025-10-28 21:06:37 +00:00
Makefile configure: add detection of assembler support for SME 2025-12-09 21:38:38 +00:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update to 8.0 2025-08-14 08:42:29 -04:00

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.