gistfile1.txt

# ffmpeg -h encoder=prores_videotoolbox
Encoder prores_videotoolbox [VideoToolbox ProRes Encoder]:
    General capabilities: dr1 delay hardware
    Threading capabilities: none
    Supported pixel formats: videotoolbox_vld yuv420p nv12 ayuv64le uyvy422 p010le nv16 p210le p216le nv24 p410le p416le bgra
prores_videotoolbox AVOptions:
  -profile           <int64>      E..V....... Profile (from -99 to 5) (default auto)
     auto                         E..V....... Automatically determine based on input format
     proxy                        E..V....... ProRes 422 Proxy
     lt                           E..V....... ProRes 422 LT
     standard                     E..V....... ProRes 422
     hq                           E..V....... ProRes 422 HQ
     4444                         E..V....... ProRes 4444
     xq                           E..V....... ProRes 4444 XQ
  -allow_sw          <boolean>    E..V....... Allow software encoding (default false)
  -require_sw        <boolean>    E..V....... Require software encoding (default false)
  -realtime          <boolean>    E..V....... Hint that encoding should happen in real-time if not faster (e.g. capturing from camera). (default false)
  -frames_before     <boolean>    E..V....... Other frames will come before the frames in this session. This helps smooth concatenation issues. (default false)
  -frames_after      <boolean>    E..V....... Other frames will come after the frames in this session. This helps smooth concatenation issues. (default false)