virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-11-21 10:55:51 +02:00
Code Issues Releases Activity
Mirror of https://git.ffmpeg.org/ffmpeg.git
101,635 Commits 37 Branches 400 Tags 458 MiB
C 90.3%
Assembly 7.8%
Makefile 1.3%
C++ 0.2%
Objective-C 0.2%
Other 0.1%
4892060f50
Go to file
Hironori Bono 4892060f50 lavc/videotoolboxenc: Add support for HEVC with Alpha. 
This change supports the "HEVC Video with Alpha" profile introduced in WWDC 2019
<https://developer.apple.com/videos/play/wwdc2019/506/>. (This change is a
partial fix for Ticket #7965.)

For example, the following command converts an animation PNG file to an HEVC
with Alpha video:
./ffmpeg -i fate-suite/apng/clock.png -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 0.75 -vtag hvc1 clock.mov

(This change uses the "HEVC Video with Alpha" profile only when the
'-alpha_quality' value is not 0 for backward compatibility.)

Signed-off-by: Hironori Bono <bouno@rouge.plala.or.jp>
2021-03-19 14:50:48 -04:00
compat compat/cuda: correct ushort4 to use ushort 2021-02-22 17:03:52 +01:00
doc doc/filters: remove option band in delogo 2021-03-19 17:21:03 +05:30
ffbuild ffbuild/common: Make deletion of templates possible 2021-02-07 09:45:04 +01:00
fftools fftools/ffmpeg: use av_packet_alloc() to allocate packets 2021-03-17 15:19:38 -03:00
libavcodec lavc/videotoolboxenc: Add support for HEVC with Alpha. 2021-03-19 14:50:48 -04:00
libavdevice avcodec/packet: Also change av_packet_pack/unpack_dictionary to size_t 2021-03-19 03:12:24 +01:00
libavfilter lavfi/dnn_backend_openvino.c: fix mem leak for TaskItem upon error 2021-03-18 09:30:09 +08:00
libavformat avformat/pp_bnk: treat music files as stereo 2021-03-19 23:38:33 +10:00
libavresample
libavutil avutil/adler32: Switch av_adler32_update() to size_t on bump 2021-03-19 04:19:53 +01:00
libpostproc lavu/mem: move the DECLARE_ALIGNED macro family to mem_internal on next+1 bump 2021-01-01 14:14:57 +01:00
libswresample swresample/audioconvert: Fix left shift of negative value 2020-09-30 10:50:45 +02:00
libswscale swscale/x86/swscale: Remove unused ASM constants 2021-02-24 09:47:54 +01:00
presets
tests fate: add adpcm_ima_cunning stereo test case 2021-03-19 23:38:33 +10:00
tools tools/target_bsf_fuzzer: use av_packet_alloc() to allocate packets 2021-03-17 15:19:37 -03:00
.gitattributes
.gitignore tools/python: add script to convert TensorFlow model (.pb) to native model (.model) 2019-07-01 10:23:47 -03:00
.mailmap mailmap: add entry for myself 2021-03-09 02:09:55 +00:00
.travis.yml Merge commit '899ee03088d55152a48830df0899887f055da1de' 2019-03-14 15:53:16 -03:00
Changelog avformat: add Changelog entry for librist and bump minor 2021-03-13 17:36:48 +01:00
configure lavc/videotoolboxenc: Add support for HEVC with Alpha. 2021-03-19 14:50:48 -04:00
CONTRIBUTING.md
COPYING.GPLv2
COPYING.GPLv3
COPYING.LGPLv2.1
COPYING.LGPLv3
CREDITS
INSTALL.md
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: update names 2021-01-20 01:04:26 -06:00
Makefile avcodec: move core AVCodecContext functions from util.c to a new file 2021-03-19 15:35:35 -03:00
README.md
RELEASE RELEASE: We are after the 4.3 branch point, update for that 2020-06-10 00:20:24 +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 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.