$ ffmpeg -i 20250523_122749-120fps.mkv
ffmpeg version 6.1.2 Copyright (c) 2000-2024 the FFmpeg developers
  built with gcc 14.2.0 (Alpine 14.2.0)
  configuration: --prefix=/usr --disable-librtmp --disable-lzma --disable-static --disable-stripping --enable-avfilter --enable-gpl --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libdav1d --enable-libdrm --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-libmp3lame --enable-libopenmpt --enable-libopus --enable-libplacebo --enable-libpulse --enable-librav1e --enable-librist --enable-libsoxr --enable-libsrt --enable-libssh --enable-libtheora --enable-libv4l2 --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-lto=auto --enable-lv2 --enable-openssl --enable-pic --enable-postproc --enable-pthreads --enable-shared --enable-vaapi --enable-vdpau --enable-version3 --enable-vulkan --optflags=-O3 --enable-libjxl --enable-libsvtav1 --enable-libvpl
  libavutil      58. 29.100 / 58. 29.100
  libavcodec     60. 31.102 / 60. 31.102
  libavformat    60. 16.100 / 60. 16.100
  libavdevice    60.  3.100 / 60.  3.100
  libavfilter     9. 12.100 /  9. 12.100
  libswscale      7.  5.100 /  7.  5.100
  libswresample   4. 12.100 /  4. 12.100
  libpostproc    57.  3.100 / 57.  3.100
[aist#0:1/pcm_f32le @ 0x7fb9fd68acc0] Guessed Channel Layout: stereo
Input #0, matroska,webm, from '20250523_122749-120fps.mkv':
  Metadata:
    COM.ANDROID.VERSION: 14
    MAJOR_BRAND     : mp42
    MINOR_VERSION   : 0
    COMPATIBLE_BRANDS: isommp42
    ENCODER         : Lavf60.16.100
  Duration: 00:00:12.57, start: 0.000000, bitrate: 1278527 kb/s
  Stream #0:0(eng): Video: utvideo (ULH2 / 0x32484C55), yuv422p(tv, bt709, progressive), 1440x1440, 120 fps, 120 tbr, 1k tbn (default)
    Metadata:
      HANDLER_NAME    : VideoHandle
      VENDOR_ID       : [0][0][0][0]
      ENCODER         : Lavc60.31.102 utvideo
      DURATION        : 00:00:12.541000000
    Side data:
      displaymatrix: rotation of -90.00 degrees
  Stream #0:1(eng): Audio: pcm_f32le, 48000 Hz, 2 channels, flt, 3072 kb/s (default)
    Metadata:
      HANDLER_NAME    : SoundHandle
      VENDOR_ID       : [0][0][0][0]
      ENCODER         : Lavc60.31.102 pcm_f32le
      DURATION        : 00:00:12.565000000
At least one output file must be specified