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Andreas Rheinhardt d5a47bf2b3 swresample/x86/Makefile: Only compile ASM init files when X86ASM is enabled 
To do so, simply add these init files to X86ASM-OBJS instead of OBJS
in the Makefile. The former is already used for the actual assembly
files, but using them for the C init files just works, because the build
system uses file extensions to derive whether it is a C or a NASM file.

This avoids compiling unused function stubs and also reduces our
reliance on DCE: We don't add %if checks to the asm files except
for AVX, AVX2, FMA3, FMA4, XOP and AVX512, so all the MMX-SSE4
functions will be available. It also allows to remove HAVE_X86ASM checks
in these init files.

(x86/ops.c has already been put in X86ASM-OBJS.)

Reviewed-by: Kacper Michajłow <kasper93@gmail.com>
Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2025-11-30 22:20:13 +01:00
.forgejo forgejo/workflows: make test shared/static mode more human readable 2025-11-26 23:21:11 +00:00
compat fftools: Fix MediaCodec on Android15+ 2025-11-23 12:53:43 +00:00
doc avfilter/buffersrc: add av_buffersrc_get_status() 2025-11-26 13:15:16 +00:00
ffbuild {lib{avcodec,swscale}/x86/,}Makefile: Kill MMX-OBJS 2025-11-30 22:20:13 +01:00
fftools fftools/ffmpeg_filter: close all no-longer needed inputs 2025-11-26 13:15:16 +00:00
libavcodec {lib{avcodec,swscale}/x86/,}Makefile: Kill MMX-OBJS 2025-11-30 22:20:13 +01:00
libavdevice libavdevice/decklink: Implement QueryInterface to support newer driver 2025-11-27 20:12:03 +00:00
libavfilter avfilter/x86/Makefile: Only compile ASM init files when X86ASM is enabled 2025-11-30 22:20:13 +01:00
libavformat avformat/rawdec: set framerate in codec parameters 2025-11-27 20:01:54 -03:00
libavutil avutil/x86/x86inc: Use parentheses in has_epilogue 2025-11-30 00:15:43 +01:00
libswresample swresample/x86/Makefile: Only compile ASM init files when X86ASM is enabled 2025-11-30 22:20:13 +01:00
libswscale {lib{avcodec,swscale}/x86/,}Makefile: Kill MMX-OBJS 2025-11-30 22:20:13 +01:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests avcodec/x86/h264_idct: Don't use MMX registers in ff_h264_luma_dc_dequant_idct_sse2 2025-11-30 00:15:43 +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 avcodec/rkmppenc: add h264/hevc rkmpp encoder 2025-11-27 15:54:49 +08:00
configure libavdevice/decklink: Implement QueryInterface to support newer driver 2025-11-27 20:12:03 +00:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1 all: fix whitespace/new-line issues 2025-08-03 13:48:47 +02:00
COPYING.LGPLv3
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 {lib{avcodec,swscale}/x86/,}Makefile: Kill MMX-OBJS 2025-11-30 22:20:13 +01:00
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.