[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.

[fract]

try other way around...leave vpp checked but disble lower tonemaping option. works for me that way.
also, try setting tonemapping algorithm to "none".
works for me that way on gemini lake Celeron J4125 (synology).

[cosmicvoyager]

Not sure why I did not think of this ... It works, however with DV content the image has the characteristic purple tint. IS this also the case for you ?

[fract]

nope. looks perfectly fine...

[cosmicvoyager]

I found the solution (somewhere in the depth of a forum, as you would expect). The key for me was to add the following line to my docker compose configuration:

Code:

environment:
  - ...
  - DOCKER_MODS=linuxserver/mods:jellyfin-opencl-intel

I was then able to use the not-VPP tone mapping and DV content worked fine. Running the clinfo command line in the jellyfin container showed the presence of an openCL device.
@fract : Thank you for your answer and putting me on the right track.

[fract]

np. enjoy!