When setting level of HEVC in NVENC, FFmpeg gives error:root@encoder:~# /opt/ffmpeghw/bin/ffmpeg -i /root/bunny.mp4 -aspect 16:9 -s 3840x2160 -vcodec nvenc_h265 -preset hp -fflags +genpts -vb 25000k - minrate 25000k -maxrate 25000k -bufsize 75000k -muxrate 25000k -r 50 -an -flush_packets 0 -packetsize 188 -level 5.1 -y -f mpegts /dev/null
...
[nvenc_h265 @ 0xee0080] InitializeEncoder failed: 0x8
That simply means that the requested encoding options are unsupported/invalid. The requested level is just passed to nvenc, it doesn't support every single one of them in every mode.
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