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Dale Curtis 08b1bffa49 avcodec/h2645: allocate film grain metadata dynamically 
Film grain support adds a huge amount of overhead to the H264Context
structure for a feature that is rarely used. On low end devices or
pages that have lots of media this bloats memory usage rapidly.

This changes the static film grain metadata allocations to be dynamic
which reduces the H264Context size from 851808 bytes to 53444 bytes.

Bug: https://crbug.com/359358875
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Niklas Haas <git@haasn.dev>
 		2024-10-25 01:02:35 +02:00
compat compat: Fix the fallback definition of stdc_trailing_zeros 2024-09-24 14:00:27 +03:00
doc doc/ffmpeg: improve -disposition, -stats, and -progress documentation 2024-10-24 10:45:04 +02:00
ffbuild configure: Add detection of assembler support for SVE/SVE2 2024-09-27 00:03:04 +03:00
fftools fftools/ffmpeg_sched: be smarter about flushing the pre-muxing queues 2024-10-17 10:57:18 +02:00
libavcodec avcodec/h2645: allocate film grain metadata dynamically 2024-10-25 01:02:35 +02:00
libavdevice avdevice/dshow: fix unused variable warning 2024-10-17 13:04:17 +02:00
libavfilter avfilter/vf_pixdesctest: also take into account undefined alpha components 2024-10-21 09:52:58 -03:00
libavformat lavf/mxfdec: Set a scan direction explicitly 2024-10-21 11:14:24 +02:00
libavutil avutil/hwcontext_vulkan: add support for AV_PIX_FMT_Y216 2024-10-23 20:06:03 -03:00
libpostproc */version.h: bump after release/7.1 branch 2024-09-24 17:10:35 +02:00
libswresample arm: Consistently use proper interworking function returns 2024-10-09 15:52:51 +03:00
libswscale swscale: rename SwsContext to SwsInternal 2024-10-24 22:50:00 +02:00
presets
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tests swscale: rename SwsContext to SwsInternal 2024-10-24 22:50:00 +02:00
tools tools/target_swr_fuzzer: Limit the number of samples 2024-09-24 15:37:18 +02:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore
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.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
CONTRIBUTING.md
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COPYING.GPLv2
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COPYING.GPLv3
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COPYING.LGPLv2.1
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COPYING.LGPLv3
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CREDITS
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Changelog configure: drop yasm support 2024-10-06 01:32:47 +02:00
INSTALL.md
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LICENSE.md
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MAINTAINERS MAINTAINERS: update myself for dvdvideo, rcwtdec, rcwtenc 2024-09-29 17:38:12 +02:00
Makefile add tools/target_swr_fuzzer 2024-08-08 15:26:52 +02:00
README.md
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RELEASE RELEASE: update release number after release/7.1 branch 2024-10-09 01:55:50 +02:00
configure configure: Only try to use the -no_warn_duplicate_libraries flag on Darwin 2024-10-15 09:53:14 +03:00

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.