ffmpeg and hevc_nvenc?

[asarian]

I decided to give hevc_nvenc a try once, using ffmpeg, on a H264 stream:

ffmpeg -i test.mp4 -c:v hevc_nvenc -pix_fmt yuv420p -preset p7 -tune hq -rc:v vbr -cq:v 10 -b:v 0 -profile:v main -rc-lookahead:v 32 g:\video\test.hevc

ffmpeg reports no errors, but simply exits like after 11 frames or so. What am I missing here?

[Selur]

Have you tried using a higher loglevel to see why ffmpeg exits?

[frank]

ffmpeg.exe -c:v h264_cuvid -i test.mp4 -c:v hevc_nvenc ...

[asarian]

ffmpeg.exe -c:v h264_cuvid -i test.mp4 -c:v hevc_nvenc ...

:goodpost:

Thx. Looks like I forgot the decoder part. :sly:

[Balling]

No, you can use SW decoder. This looks like another bug. Sigh.

As for cuvid part those are really old.

Use -hwaccel cuda -hwaccel_format cuda