On Mon, 4 May 2020 at 02:22, Marco Kittel <marcokit...@web.de> wrote:
> 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 > > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > https://ffmpeg.org/mailman/listinfo/ffmpeg-user > > To unsubscribe, visit link above, or email > ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe". I think the issue you're running into may have to do with NVIDIA drivers only allowing 2-3 simultaneous encodes from one video card at any given time, unless you're using an NVIDIA Quadro in-which there is no encode limit. Fortunately, even on consumer cards this limit is artificially imposed and can be bypassed with a patch: https://github.com/keylase/nvidia-patch _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-user To unsubscribe, visit link above, or email ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
