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Harishmcw 5946d2eadc compat: Fix .def file generation for ARM64EC builds on Windows 
When building DLLs on ARM64EC, the default use of `dumpbin
-linkermember:1` fails because ARM64EC static libraries use a
different linker member format. Use `-linkermember:32` for ARM64EC
to correctly extract symbols.

Additionally, MSVC inserts $exit_thunk and $entry_thunk symbols
for ARM64EC to handle x64 ↔ ARM64 transitions. These are internal
thunks and must not be exported. Filter them out when generating
the .def file to avoid unresolved symbols or invalid exports.

Trim out the leading '#' on ARM64EC function symbols. This is only
relevant on ARM64EC, but it is benign to do that filtering on
all architectures (such symbols aren't expected on other
architectures).

Simplify the sed command by removing the symbol address with a
sed expression instead of a later "cut" command.

This ensures correct symbol extraction and stable DLL generation
on ARM64EC targets, while keeping behavior unchanged for other
Windows architectures.
2025-12-19 10:01:16 +00:00
.forgejo forgejo/workflows: fix error handling of configure result 2025-12-17 13:28:21 +00:00
compat compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
doc doc: Document our stance on Windows ARM64EC 2025-12-19 10:01:16 +00:00
ffbuild configure: add detection of assembler support for SME 2025-12-09 21:38:38 +00:00
fftools ffprobe: Include the RFC 4281 "mime codec string" in show_stream output 2025-12-12 18:40:01 +02:00
libavcodec avcodec/apv_parser: add support for AU assembly 2025-12-18 01:24:35 +00:00
libavdevice avdevice/gdigrab: suppress int to pointer cast warning 2025-12-03 23:45:44 +00:00
libavfilter lavfi/vf_blackdetect: R-V V count_pixels_16 2025-12-16 17:30:29 +02:00
libavformat avformat/flvdec: Fix leak of channel layout map 2025-12-19 08:02:52 +01:00
libavutil avutil/log: use atomics to load and store logging level, flags and callback pointer 2025-12-13 21:33:11 +00:00
libswresample swresample/soxr_resample: pass initialized data to soxr_process() in flush() 2025-12-08 21:31:13 +00:00
libswscale swscale: use configured YUV matrix with paletted-RGB inputs 2025-12-16 01:24:40 +00:00
presets
tests tests/fate/demux: add a raw JPEG-XS demux test 2025-12-16 10:38:56 -03:00
tools tools/sofa2wavs: fix build on Windows 2025-11-29 21:43:12 +00:00
.gitattributes
.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: add a raw JPEG-XS muxer and demuxer 2025-12-13 19:03:36 -03:00
configure compat: Fix .def file generation for ARM64EC builds on Windows 2025-12-19 10:01:16 +00:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3
CREDITS
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
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.