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Haihao Xiang 579711c2cc lavfi/qsvvpp: check the parameters before initializing vpp session 
According to the description about MFXVideoVPP_Query [1], we may call
MFXVideoVPP_Query to check the validity of the parameters for vpp
session, use the corrected values to initialize the session.

[1] https://spec.oneapi.io/versions/latest/elements/oneVPL/source/API_ref/VPL_func_vid_vpp.html#mfxvideovpp-query

Signed-off-by: Haihao Xiang <haihao.xiang@intel.com>
 		2023-06-20 09:52:43 +08:00
compat
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doc avfilter/vf_drawtext: use flags type of option for text_align 2023-06-19 22:35:53 +02:00
ffbuild
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fftools fftools/ffmpeg: pass subtitle decoder dimensions to sub2video 2023-06-19 09:48:56 +02:00
libavcodec avcodec: AC-4 codec registration 2023-06-20 01:11:31 +02:00
libavdevice avdevice/decklink_common: Convert to using avpriv_packet_list functions 2023-05-31 00:21:00 +02:00
libavfilter lavfi/qsvvpp: check the parameters before initializing vpp session 2023-06-20 09:52:43 +08:00
libavformat lavf/rtpenc_jpeg: Retrieve sampling factor from SOF0 2023-06-20 09:52:43 +08:00
libavutil hwcontext_vulkan: free temporary array once unneeded 2023-06-15 22:00:41 +02:00
libpostproc
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libswresample Move bessel_i0() from swresample/resample to avutil/mathematics 2023-05-29 00:45:28 +02:00
libswscale swscale: bump minor for implementing support for the new pixfmts 2023-05-29 00:42:02 +02:00
presets
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tests avformat/evc: skip nalu header size bytes before parsing sps 2023-06-19 17:21:19 -03:00
tools tools/target_dec_fuzzer: Test lowres 2023-06-06 21:37:53 +02:00
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Changelog avfilter/vf_bwdif_cuda: CUDA accelerated bwdif deinterlacer 2023-06-16 12:52:32 -07:00
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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.