Hello, i'm having a hard time rendering multiple hls instances with nvidia gear. The details are in the forum post. Here is a little summary. Everytime without any exception, when i'm running multiple instances of ffmpeg with cuda support, all instrances until one instance are stopping to work. It looks like a deadlock. Because this behavior isn't happening when i'm using libx264, i asked nvidia - how to fix it. I made a youtube video for you guys to see whats happening. https://www.youtube.com/watch?v=QOaf7v_Gwwk
I tried every new nvidia driver and the beavior was the same. Then i build ffmpeg again with gcc 8, still the same behavior. I will try to rebuild ffmpeg with gcc 7. https://forums.developer.nvidia.com/t/multiple-ffmpeg-cuda-hls-transcoding-instances-deadlock-behavior/121461 How did i build ffmpeg: ./configure --enable-libx264 --enable-cuvid --enable-gpl --enable-libnpp --enable-cuda --disable-cuda-sdk --enable-nonfree --extra-cflags=-I/usr/local/cuda-10.2/include --extra-ldflags=-L/usr/local/cuda-10.2/lib64 && make -j 8 How i'm executing ffmpeg: exec $FFMPEG_PATH -vsync 0 -loglevel debug -threads:v 1 -threads:a 1 -filter_threads 1 -thread_queue_size 1024 -hwaccel cuda -hwaccel_device 0 -hwaccel_output_format cuda -deint adaptive -i “udp://$MULTICAST_ADDRESS:$PORT” -filter_complex “[v:0]split=4[temp1][temp2][source][temp3];[temp1]scale_npp=858:480[480p];[temp2]scale_npp=640:360[wide360p];[temp3]scale_npp=426:240[240p]” -g 50 -sc_threshold 0 -map [wide360p] -preset medium -c:v:0 h264_nvenc -preset fast -profile:v baseline -b:v:0 600k -bufsize 24k -minrate 400k -maxrate 600k -map [480p] -c:v:1 h264_nvenc -preset medium -profile:v baseline -b:v:1 1000k -bufsize 56k -minrate 800k -maxrate 1600k -preset fast -map [source] -c:v:2 h264_nvenc -preset medium -profile:v baseline -preset fast -b:v:2 3600k -minrate 2000k -maxrate 4000k -bufsize 144k -map [240p] -c:v:3 h264_nvenc -preset medium -profile:v baseline -zerolatency 1 -preset fast -b:v:3 400k -bufsize 16k -map a:0 -c:a aac -b:a 128k -ac 2 -map a:1 -c:a aac -b:a 96k -ac 2 -f hls -hls_time 4 -hls_list_size 0 -hls_flags append_list -hls_allow_cache 0 -hls_playlist_type event -master_pl_name $MASTER_PLAYLIST_NAME -var_stream_map “a:0,agroup:audio,default:yes,language:DEU a:1,agroup:audio,language:FR v:0,agroup:audio v:1,agroup:audio, v:2,agroup:audio, v:3,agroup:audio” $SEGMENT_FILE_NAME $MEDIA_PLAYLIST_PREFIX Please help me to fix this behavior. Best regards Marco Kittel
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