ffmpeg vvc h266 encode test

ffmpeg -i foreman_cif_pal.266 -pix_fmt yuv420p10 -global_quality 37 trynewsmall.266
ffmpeg version N-101905-gc160e313a8 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11.3.0 (Rev2, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-libvvenc --enable-libvvdec --enable-pic --enable-libxml2 --enable-libaom --enable-libx264 --enable-libx265 --enable-libvpx --enable-libsvtav1 --enable-libopus --enable-librav1e --disable-w32threads
  libavutil      56. 72.100 / 56. 72.100
  libavcodec     58.135.100 / 58.135.100
  libavformat    58. 77.100 / 58. 77.100
  libavdevice    58. 14.100 / 58. 14.100
  libavfilter     7.111.100 /  7.111.100
  libswscale      5. 10.100 /  5. 10.100
  libswresample   3. 10.100 /  3. 10.100
  libpostproc    55. 10.100 / 55. 10.100
Input #0, vvc, from 'foreman_cif_pal.266':
  Duration: N/A, bitrate: N/A
  Stream #0:0: Video: vvc (Main 10), yuv420p(tv), 352x288, 25 fps, 25 tbr, 1200k tbn, 25 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (vvc (libvvdec) -> vvc (libvvenc))
Press [q] to stop, [?] for help
Output #0, vvc, to 'trynewsmall.266':
  Metadata:
    encoder         : Lavf58.77.100
  Stream #0:0: Video: vvc, yuv420p10le(tv, progressive), 352x288, q=2-31, 200 kb/s, 25 fps, 25 tbn
    Metadata:
      encoder         : Lavc58.135.100 libvvenc
frame=  300 fps= 56 q=-0.0 Lsize=     264kB time=00:00:10.96 bitrate= 197.2kbits/s speed=2.05x
video:264kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.000000%