Changes between Version 78 and Version 79 of HWAccelIntro


Ignore:
Timestamp:
May 23, 2022, 12:46:47 AM (4 years ago)
Author:
Jun Zhao
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • HWAccelIntro

    v78 v79  
    113113= !VideoToolbox =
    114114
    115 [https://developer.apple.com/documentation/videotoolbox VideoToolbox], only supported on macOS. H.264 decoding is available in FFmpeg/libavcodec.
     115[https://developer.apple.com/documentation/videotoolbox VideoToolbox], only supported on macOS. H.263/H.264/HEVC/MPEG1/MPEG2/MPEG4/ProRes decoding is available in FFmpeg/libavcodec.
    116116
    117117To use hardware encoding in macOS, just use the encoder `-c:v h264_videotoolbox` or `-c:v hevc_videotoolbox` for H.264 or HEVC respectively. Check `ffmpeg -h encoder=...` to see encoder options. It's worth noting that !VideoToolbox does not support constant quality (CRF) encoding.  Bit rate, `-b:v ...`, is your main lever to balance size vs quality.