[SOLVED] HW tone mapping failure (QSV)

[cosmicvoyager]

Hi,

I am running Jellyfin in Docker using the Linuxserver image on a Debian machine. My server runs a 10th gen Intel i5 and I have enabled hardware transcoding with Intel QSV. in JF parameters. Transcoding SDR media works flawlessly, so does HDR media but only with tone mapping disabled. As soon as I enable tone mapping the the file does not start and I get 'Playback failed due to a fatal player error.'. The transcode logs shows the following :

Code:

 ffmpeg version 6.0.1-Jellyfin Copyright (c) 2000-2023 the FFmpeg developers
  built with gcc 11 (Ubuntu 11.4.0-1ubuntu1~22.04)
  configuration: --prefix=/usr/lib/jellyfin-ffmpeg --target-os=linux --extra-version=Jellyfin --disable-doc --disable-ffplay --disable-ptx-compression --disable-static --disable-libxcb --disable-sdl2 --disable-xlib --enable-lto --enable-gpl --enable-version3 --enable-shared --enable-gmp --enable-gnutls --enable-chromaprint --enable-opencl --enable-libdrm --enable-libass --enable-libfreetype --enable-libfribidi --enable-libfontconfig --enable-libbluray --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libopenmpt --enable-libdav1d --enable-libsvtav1 --enable-libwebp --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzvbi --enable-libzimg --enable-libfdk-aac --arch=amd64 --enable-libshaderc --enable-libplacebo --enable-vulkan --enable-vaapi --enable-amf --enable-libvpl --enable-ffnvcodec --enable-cuda --enable-cuda-llvm --enable-cuvid --enable-nvdec --enable-nvenc
  libavutil      58.  2.100 / 58.  2.100
  libavcodec    60.  3.100 / 60.  3.100
  libavformat    60.  3.100 / 60.  3.100
  libavdevice    60.  1.100 / 60.  1.100
  libavfilter    9.  3.100 /  9.  3.100
  libswscale      7.  1.100 /  7.  1.100
  libswresample  4. 10.100 /  4. 10.100
  libpostproc    57.  1.100 / 57.  1.100
libva info: VA-API version 1.21.0
libva info: Trying to open /usr/lib/jellyfin-ffmpeg/lib/dri/iHD_drv_video.so
libva info: Found init function __vaDriverInit_1_21
libva info: va_openDriver() returns 0
[AVHWDeviceContext @ 0x55f17ec74500] Failed to get number of OpenCL platforms: -1001.
Device creation failed: -19.
Failed to set value 'opencl=ocl@va' for option 'init_hw_device': No such device
Error parsing global options: No such device

I tried enabling/disabling the VPP option but no changes. I left all Tone Mapping parameters to their default value.

Any input appreciated !

Edit: I installed the intel-opencl-icd package which was not installed. By running the clinfo command on the host machine, I can see an openCL device listed. However, when running the same command insde the jellyfin docker container, no openCL devices are found. I made sure to add the jellyfin user to the render group but that did not help.