[MicTie]

 

I've pushed fix for artifacts and flickering. Docker container updated respectively. 
Please check it out.

Thanks for the update!
I saw you have rebased Kodi to V19.1.

Too bad the artifacts when playing H264 and H265 movies seem unchanged.
Not sure if the attached log is helpful:
2021-09-07 16:33:16.890 T:8674 INFO <general>: VideoPlayer::OpenFile: /media/kodi4T/movies/moview.mp4
2021-09-07 16:33:16.894 T:35373 INFO <general>: Creating InputStream
2021-09-07 16:33:16.912 T:35373 INFO <general>: ScanPathsForAssociatedItems: found associated file /media/kodi4T/movies/movie.srt
2021-09-07 16:33:16.912 T:35373 INFO <general>: Creating Demuxer
2021-09-07 16:33:17.256 T:35373 INFO <general>: Opening stream: 0 source: 256
2021-09-07 16:33:17.256 T:35373 INFO <general>: [WHITELIST] Searching the whitelist for: width: 1920, height: 1040, fps: 23.976, 3D: false
2021-09-07 16:33:17.256 T:35373 INFO <general>: Display resolution ADJUST : HDMI-0: 1920x1080 @ 23.98Hz (24) (weight: 0.000)
2021-09-07 16:33:17.264 T:8674 INFO <general>: CWinSystemX11::SetFullScreen - calling xrandr
2021-09-07 16:33:17.264 T:8674 INFO <general>: VideoPlayer: OnLostDisplay received
2021-09-07 16:33:17.264 T:8674 WARNING <general>: CDVDMessageQueue(audio):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.264 T:8674 WARNING <general>: CDVDMessageQueue(video):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.280 T:8674 INFO <general>: XRANDR: /home/michael/xbmc/build/kodi-xrandr --screen 0 --output HDMI-0 --mode 0x194
2021-09-07 16:33:17.490 T:8674 INFO <general>: GLES: Maximum texture width: 16384
2021-09-07 16:33:17.498 T:35373 INFO <general>: Creating video codec with codec id: 173
2021-09-07 16:33:17.498 T:35373 INFO <general>: NVV4LCodec::Open opening device /dev/nvhost-nvdec
2021-09-07 16:33:17.516 T:8674 INFO <general>: VideoPlayer: OnLostDisplay received
2021-09-07 16:33:17.516 T:8674 WARNING <general>: CDVDMessageQueue(audio):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.516 T:8674 WARNING <general>: CDVDMessageQueue(video):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.685 T:8674 INFO <general>: VideoPlayer: OnResetDisplay received
2021-09-07 16:33:17.685 T:8674 WARNING <general>: CDVDMessageQueue(audio):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.685 T:8674 WARNING <general>: CDVDMessageQueue(video):ut MSGQ_NOT_INITIALIZED
2021-09-07 16:33:17.685 T:8674 INFO <general>: GLES: Maximum texture width: 16384
2021-09-07 16:33:17.692 T:8674 INFO <general>: GLES: Enabling VSYNC
2021-09-07 16:33:17.707 T:35373 INFO <general>: CNVV4LBufferPool::Init 12 v4l2 buffers initalized
2021-09-07 16:33:17.707 T:35373 INFO <general>: NVV4LCodec::Open device ready
2021-09-07 16:33:17.707 T:35373 INFO <general>: NVV4LCodec::SubscribeEvent subscribe to event
2021-09-07 16:33:17.710 T:35373 INFO <general>: CBitstreamConverter::Open bitstream to annexb init
2021-09-07 16:33:17.710 T:35373 INFO <general>: Creating video thread
2021-09-07 16:33:17.712 T:35461 INFO <general>: running thread: video_thread
2021-09-07 16:33:17.712 T:35373 INFO <general>: Opening stream: 1 source: 256
2021-09-07 16:33:17.712 T:35373 INFO <general>: Finding audio codec for: 86018
2021-09-07 16:33:17.713 T:35373 INFO <general>: CDVDAudioCodecFFmpeg::Open() Successful opened audio decoder aac
2021-09-07 16:33:17.713 T:35373 INFO <general>: Creating audio thread
2021-09-07 16:33:17.713 T:35373 INFO <general>: Opening stream: 0 source: 1024
2021-09-07 16:33:17.714 T:35462 INFO <general>: running thread: CVideoPlayerAudiorocess()
2021-09-07 16:33:17.869 T:35462 INFO <general>: Creating audio stream (codec id: 86018, channels: 6, sample rate: 48000, no pass-through)
2021-09-07 16:33:17.871 T:35461 INFO <general>: NVV4LCodececoderLoop resolution change received
2021-09-07 16:33:17.873 T:35461 INFO <general>: CNVV4LBufferPool::Init 15 v4l2 buffers initalized 


I will try some more test tomorrow .....