Stowage/ffmpeg
2
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2026-02-14 03:11:25 +00:00
Code Issues Projects Releases Packages Wiki Activity
No description
118415 commits 38 branches 415 tags 290 MiB
Find a file
Dmitrii Ovchinnikov 9e7242579e avutil: add hwcontext_amf. 
Adds  hwcontext_amf, enabling a shared AMF context for encoders,
decoders, and AMF-based filters, without copy to the host memory.
Code also was tested in HandBrake.

Benefits:
 - Optimizations for direct video memory access from CPU
 - Significant performance boost in full AMF pipelines with filters
 - Integration of GPU filters like VPP, Super Resolution, and
    Compression Artefact Removal(in future plans)
 - VCN power management control for decoders.
 - Ability to specify which VCN instance to use for decoding
   (like for encoder)
 - AMD will soon introduce full AMF API for multimedia accelerator MA35D
   - With AMF API, integration will be much easier:
      GPU and the accelerator will have the same API
   - including encoder, decoder, scaler, color converter,
      Windows and Linux.
   Learn more:
      https://www.amd.com/en/products/accelerators/alveo/ma35d.html

Changes by versions:
v2: Header file cleanup.
v3: Removed an unnecessary class.
v4: code cleanup and improved error handling
v5: Fixes related to HandBrake integration.
v6: Sequential filters error and memory leak have been fixed.
2025-02-04 00:14:14 +01:00
compat compat/w32pthreads: change pthread_t into pointer to malloced struct 2024-12-16 09:43:19 +01:00
doc doc/filters: fix typo in format filter 2025-01-31 23:15:40 +05:30
ffbuild ffbuild/bin2c: misc fix 2025-01-13 23:58:36 +08:00
fftools fftools/ffmpeg_opt: Remove audio_drift_threshold 2025-02-02 17:03:32 +01:00
libavcodec avcodec/nvenc: Enable recovery point SEI for intra refresh mode 2025-02-04 01:21:26 +08:00
libavdevice avdevice/alsa_dec: add a ch_layout option 2025-02-01 01:12:17 -03:00
libavfilter avfilter/vf_scale: remove global side data when it no longer applies after scaling 2025-02-03 11:05:59 -03:00
libavformat avformat/seek: Remove always true condition 2025-02-04 01:24:23 +08:00
libavutil avutil: add hwcontext_amf. 2025-02-04 00:14:14 +01:00
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/x86/rgb2rgb: add AVX512ICL versions of shuffle_bytes 2025-02-03 10:16:44 -03:00
presets presets: remove moldering iPod presets 2014-06-17 16:15:04 -08:00
tests tests/checkasm/sw_rgb: increase plane array buffers 2025-01-28 15:26:00 -03:00
tools tools/target_swr_fuzzer: do not use negative numbers of samples 2025-01-21 22:55:10 +01:00
.gitattributes lavf/assenc: normalize line endings to \n 2024-02-11 17:01:07 -08:00
.gitignore .gitignore: add exclusions for shader .c files 2024-11-18 07:54:21 +01:00
.mailmap mailmap: add entry for myself 2024-07-15 01:59:37 +02:00
Changelog avformat/matroska: add support for VVC streams 2025-01-12 11:13:31 -03:00
configure configure: Improve the check for the rsync --contimeout option 2025-01-28 19:55:45 +02:00
CONTRIBUTING.md Add CONTRIBUTING.md 2016-09-18 10:02:13 +01:00
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 INSTALL: explain the circular dependency issue and solution 2024-11-03 19:35:23 +01:00
LICENSE.md avfilter/vf_geq: Relicense to LGPL 2019-12-28 11:20:48 +01:00
MAINTAINERS MAINTAINERS: Lauri is still available but is really low on time nowadays 2024-11-28 23:19:00 +01:00
Makefile configure: Add wasm as a fake arch 2024-12-04 16:43:06 +08:00
README.md README: fix typo and description of libavfilter 2021-10-08 09:44:34 +05:30
RELEASE RELEASE: update release number after release/7.1 branch 2024-10-09 01:55:50 +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.