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Martin Storsjö f9626d1065 ffbuild: Avoid using the --preprocessor argument to windres 
Instead use --preprocessor-arg; in binutils 2.36, the --preprocessor
flag was changed so that it no longer accepts a string containing
multiple arguments, but the whole --preprocessor argument is
treated as the path to the preprocessor executable (where the path
can contain spaces).

It's currently unclear whether this behaviour will stay or if it
is going to be reverted in the future, see discussion at [1]. Just
to be safe, avoid using the --preprocessor argument. Don't redeclare
the full preprocessing command, but just add the $(CC_DEPFLAGS) options.

Based on a patch by Kyle Schwartz.

[1] https://sourceware.org/bugzilla/show_bug.cgi?id=27594

Signed-off-by: Martin Storsjö <martin@martin.st>
2021-06-18 11:19:02 +03:00
compat fix broken links to msdn documentation 2021-05-13 09:13:03 +10:00
doc doc/filters: document expr support in fps filter 2021-06-16 15:43:10 +05:30
ffbuild ffbuild: Avoid using the --preprocessor argument to windres 2021-06-18 11:19:02 +03:00
fftools ffmpeg: silence a thread_safe_callbacks deprecation warning 2021-06-10 21:57:44 -03:00
libavcodec lavc/libvpxenc: Show encoder config as a warning in case of failed initialization 2021-06-14 20:25:56 +02:00
libavdevice avdevice/libcdio: fix AVStream.cur_dts usage 2021-06-09 13:55:25 -03:00
libavfilter avfilter/vf_fps: extend support for expressions 2021-06-13 17:32:45 -03:00
libavformat dashenc: Write out DASH manifest immediately in streaming mode 2021-06-14 21:47:09 +05:30
libavutil avutil/samplefmt: don't add offsets to NULL pointers 2021-06-13 16:10:37 -03:00
libpostproc Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswresample Bump major versions of all libraries. 2021-04-27 11:48:05 -03:00
libswscale swscale/swscale_unscaled: don't use the optimized bgr24toYV12 unscaled conversion when width%2 2021-06-06 12:34:05 +08:00
presets
tests checkasm/vp9dsp: rename the iszero function to is_zero 2021-06-08 13:11:22 -03:00
tools tools/uncoded_frame: include required headers explicitly 2021-06-10 16:51:44 +02:00
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.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml
Changelog avformat: add Argonaut Games CVG muxer 2021-05-12 20:27:02 +10:00
configure ffbuild: Avoid using the --preprocessor argument to windres 2021-06-18 11:19:02 +03:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
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INSTALL.md
LICENSE.md
MAINTAINERS avformat: add Argonaut Games CVG demuxer 2021-05-12 20:25:50 +10:00
Makefile libavresample: Remove deprecated library 2021-04-27 10:43:13 -03:00
README.md
RELEASE Bump Versions before release/4.4 branch 2021-03-20 01:01:12 +01:00

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 a mean to alter decoded Audio and Video through chain of 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.