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FFmpeg git repo
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Niklas Haas e687a84854 avfilter/formats: set audio fmt lists for vaf filters 
Currently, the logic inside the FF_FILTER_FORMATS_QUERY_FUNC branch
prevents this code from running in the event that we have a filter with
a single video input and a single audio output, as the resulting audio
output link will not have its channel counts / samplerates correctly
initialized to their default values, possibly triggering a segfault
downstream.

An example of such a filter is vaf_spectrumsynth. Although this
particular filter already sets up the channel counts and samplerates as
part of the query function and therefore avoids triggering this bug, the
bug still exists in principle. (And importantly, sets a wrong precedent)
2023-12-31 13:33:01 -08:00
compat
doc avfilter/vf_showinfo: add udu_sei_as_ascii option 2023-12-28 21:22:54 +08:00
ffbuild riscv: test for assembler support 2023-12-08 17:21:09 +02:00
fftools all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavcodec avcodec/mpegvideo_enc: Use ptrdiff_t for stride 2023-12-30 21:50:05 +01:00
libavdevice all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libavfilter avfilter/formats: set audio fmt lists for vaf filters 2023-12-31 13:33:01 -08:00
libavformat Add jpeg2000 subdescriptor (V2). 2023-12-31 14:18:01 +01:00
libavutil all: Don't set AVClass.item_name to its default value 2023-12-22 15:12:33 +01:00
libpostproc Bump versions after 6.1 2023-10-29 16:19:14 +01:00
libswresample swr/swresample: avoid reapplication of firstpts 2023-12-18 15:47:04 +05:30
libswscale riscv: test for assembler support 2023-12-08 17:21:09 +02:00
presets
tests tests/dca: remove usage of deprecated request_channel_layout option 2023-12-28 15:31:50 -03:00
tools tools/target_dec_fuzzer: Adjust threshold for QPEG 2023-12-29 01:15:41 +01:00
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.mailmap mailmap: remap my email accounts 2023-11-03 20:57:49 +08:00
.travis.yml
Changelog Add new vf_tiltandshift filter 2023-12-21 17:16:16 -05:00
configure configure: Enable section_data_rel_ro for FreeBSD and NetBSD aarch64 / arm 2023-12-25 23:52:37 +01:00
CONTRIBUTING.md
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MAINTAINERS Remove myself from maintainers. 2023-12-23 23:15:55 +11:00
Makefile configure: Add a --disable-version-tracking option 2023-12-21 11:00:34 +02:00
README.md
RELEASE

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.