VVC Default IDC Incorrect for FFmpeg 7.1

[GT500org]

FastFlix Version: 5.8.2

Operating System: Win 10 x64 (22H2)

Describe the bug
Encoding in VVC with default IDC fails. Most relevant part of the logs appears to be the following:
[libvvenc @ 0000013413ed88c0] Invalid level_idc: 0.
Changing IDC to 6 allowed the encode to proceed.

To Reproduce

1. Update FFmpeg to 7.1 (I'm using the build from gyan.dev).
2. Add a video to FastFlix (my source used an MKV container, video was encoded in H.265/HEVC using NVENC via OBS Studio, with Opus audio).
3. Switch the encoder to VVC.
4. I changed QP to 21 since my video is 2560x1440.
5. Start encoding.
6. Encoding should error out immediately.

Logs

  built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
  configuration: --enable-gpl --enable-version3 --enable-static --disable-w32threads --disable-autodetect --enable-fontconfig --enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy --enable-zlib --enable-librist --enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca --enable-sdl2 --enable-libaribb24 --enable-libaribcaption --enable-libdav1d --enable-libdavs2 --enable-libopenjpeg --enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi --enable-libqrencode --enable-librav1e --enable-libsvtav1 --enable-libvvenc --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 --enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl --enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r --enable-libfreetype --enable-libfribidi --enable-libharfbuzz --enable-liblensfun --enable-libvidstab --enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid --enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec --enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi --enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl --enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb --enable-libmp3lame --enable-libshine --enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc --enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 --enable-libopencore-amrnb --enable-libopus --enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite --enable-libmysofa --enable-librubberband --enable-libsoxr --enable-chromaprint
  libavutil      59. 39.100 / 59. 39.100
  libavcodec     61. 19.100 / 61. 19.100
  libavformat    61.  7.100 / 61.  7.100
  libavdevice    61.  3.100 / 61.  3.100
  libavfilter    10.  4.100 / 10.  4.100
  libswscale      8.  3.100 /  8.  3.100
  libswresample   5.  3.100 /  5.  3.100
  libpostproc    58.  3.100 / 58.  3.100
-vsync is deprecated. Use -fps_mode
Input #0, matroska,webm, from 'E:\Videos\Cyberpunk_2077_Testing_Out_My_Armor.mkv':
  Metadata:
    ENCODER         : Lavf61.1.100
  Duration: 00:02:24.64, start: 0.000000, bitrate: 239657 kb/s
  Stream #0:0: Video: hevc (Main 10), yuv420p10le(pc, bt2020nc/bt2020/arib-std-b67), 2560x1440 [SAR 1:1 DAR 16:9], 60 fps, 60 tbr, 1k tbn
      Metadata:
        DURATION        : 00:02:24.641000000
      Side data:
        Content Light Level Metadata, MaxCLL=1000, MaxFALL=1000
        Mastering Display Metadata, has_primaries:1 has_luminance:1 r(0.6800,0.3200) g(0.2650,0.6900) b(0.1500 0.0600) wp(0.3127, 0.3290) min_luminance=0.000000, max_luminance=1000.000000
  Stream #0:1: Audio: opus, 48000 Hz, stereo, fltp
      Metadata:
        title           : Track1
        DURATION        : 00:02:24.521000000
Stream mapping:
  Stream #0:0 -> #0:0 (hevc (native) -> vvc (libvvenc))
  Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[libvvenc @ 0000013413ed88c0] Invalid level_idc: 0.
[vost#0:0/libvvenc @ 0000013413ed8640] Error while opening encoder - maybe incorrect parameters such as bit_rate, rate, width or height.
[vf#0:0 @ 0000013413ed8ec0] Error sending frames to consumers: Invalid argument
[vf#0:0 @ 0000013413ed8ec0] Task finished with error code: -22 (Invalid argument)
[vf#0:0 @ 0000013413ed8ec0] Terminating thread with return code -22 (Invalid argument)
[vost#0:0/libvvenc @ 0000013413ed8640] Could not open encoder before EOF
[vost#0:0/libvvenc @ 0000013413ed8640] Task finished with error code: -22 (Invalid argument)
[vost#0:0/libvvenc @ 0000013413ed8640] Terminating thread with return code -22 (Invalid argument)
[out#0/matroska @ 000001341361f340] Nothing was written into output file, because at least one of its streams received no packets.
frame=    0 fps=0.0 q=0.0 Lsize=       0KiB time=N/A bitrate=N/A speed=N/A

Conversion failed!

Please make sure to remove any personal information or video names in the screenshots and logs!
(not necessary, it's a gameplay video I recorded for YouTube)

[cdgriffith]

Thanks, took a bit to find what the valid fields are now https://github.com/fraunhoferhhi/vvenc/blob/cf8ba5ed74f8e8c7c9e7b6f81f7fb08bce6241b0/source/Lib/vvenc/vvencCfg.cpp#L159

I will update it to just not pass it in instead of using 0 for auto anymore.

[cdgriffith]

Fixing in 5.9.0, thanks for bringing this to my attention! https://github.com/cdgriffith/FastFlix/releases/tag/5.9.0