Enabling nvenc / ffmpeg
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Enabling nvenc / ffmpeg
Hi - I am new to UMS. I tried to enable nvenc. I am able to compile ffmmpeg with nvenc support. I confirmed that it has the encoder by:
I am, then, set gpu_acceleration = true.
How do I verify that nvenc is being used or not? GPU usage doesn't seem to go up and I don't see nvenc_h264 flag is set in ffmpeg command in debug log:
Code: Select all
$ ./ffmpeg -encoders 2>/dev/null | grep nvenc
V..... h264_nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_h264 NVIDIA NVENC H.264 encoder (codec h264)
V..... nvenc_hevc NVIDIA NVENC hevc encoder (codec hevc)
V..... hevc_nvenc NVIDIA NVENC hevc encoder (codec hevc)
compile flag
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] configuration: --prefix=/root/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/root/bin --enable-gpl --enable-libaom --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-version3 --enable-static --disable-debug --enable-libwebp --enable-libspeex --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-libzimg --enable-librtmp --enable-libmfx --enable-nonfree
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libavutil 56. 31.100 / 56. 31.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libavcodec 58. 54.100 / 58. 54.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libavformat 58. 29.100 / 58. 29.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libavdevice 58. 8.100 / 58. 8.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libavfilter 7. 57.100 / 7. 57.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libswscale 5. 5.100 / 5. 5.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libswresample 3. 5.100 / 3. 5.100
DEBUG 2020-03-03 01:45:09.807 [ffmpeg-12-2] libpostproc 55. 5.100 / 55. 5.100
How do I verify that nvenc is being used or not? GPU usage doesn't seem to go up and I don't see nvenc_h264 flag is set in ffmpeg command in debug log:
Code: Select all
/opt/ums/custom/ffmpeg -y -loglevel fatal -i /mnt/md0/media/Shared/camping.avi -bufsize 31250k -maxrate 31250k -crf 16 -c:a copy -c:v libx264 -tune zerolatency -preset ultrafast -level 31 -pix_fmt yuv420p -f mpegts /tmp/UMS-ums/ffmpegvideo_76_1583228712103