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0e9cf1abf5
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Niklas Haas 0e9cf1abf5 avfilter: always call ff_default_query_formats 
Even if a query func is set. This is safe to do, because
ff_default_query_formats is documented not to touch any filter lists
that were already set by the query func.

The reason to do this is because it allows us to extend
AVFilterFormatsConfig without having to touch every filter in existence.
An alternative implementation of this commit would be to explicitly add
a `ff_default_query_formats` call at the end of every query_formats
function, but that would end up functionally equivalent to this change
while touching a whole lot more code paths for no reason.

As a bonus, eliminates some code/logic duplication from this function.
2023-12-31 13:33:01 -08:00
compat configure: Set WIN32_LEAN_AND_MEAN at configure time 2023-08-14 22:57:28 +03:00
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: always call ff_default_query_formats 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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.gitignore gitignore: add config_components.h 2022-03-17 18:35:41 -03:00
.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
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS Use https for repository links 2023-03-01 21:59:10 +01:00
INSTALL.md
LICENSE.md
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 RELEASE: update after 5.1 branch 2022-07-13 00:31:42 +02:00

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.