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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-03-17 20:17:55 +02:00
Linjie Fu 2847c5c6f9 lavc/vaapi_encode_h265: fix conf_win_xxx_offset for 4:2:2/4:4:4 encoding
Use desc->log2_chroma_w/h to calculate the sps->conf_win_right/bottom_offset.

Based on Table 6-1, SubWidthC and SubHeightC depend on chroma format(log2_chroma_w/h).

Based on D-28 and D-29, set the correct cropped width/height.

croppedWidth  = pic_width_in_luma_samples −
                SubWidthC * ( conf_win_right_offset + conf_win_left_offset );

croppedHeight = pic_height_in_luma_samples −
                SubHeightC * ( conf_win_bottom_offset + conf_win_top_offset );

Signed-off-by: Linjie Fu <linjie.fu@intel.com>
2020-03-09 23:44:04 +00:00
2017-01-27 17:06:42 +01:00
2016-09-18 10:02:13 +01:00
2019-01-31 10:29:16 -09:00
2019-12-28 11:20:48 +01:00
2018-01-06 18:31:37 +00:00

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.

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