On 13/10/16 11:34, tyt xtreme wrote:
Dear All,

Any idea why this encoding doesn't work?

$ ffmpeg -i perspective.mp4 -c:v h264_nvenc -profile:v high444p
-pixel_format yuv444p -preset default perspective_out.mp4

...
[h264_nvenc @ 0000000001d84640] No free surfaces
Video encoding failed
Conversion failed!
Surfaces are a reference to the memory buffers used by the encoder. You can find out about which surfaces your graphics card supports by opening the Nvidia settings panel, -> "VDPAU Information", -> "Surface Limits".

If your card doesn't support the pixel format or the picture exceeds the surface limit might this already explain why you get this error message. Although I would expect to see a different error message...

You can also check with "nvidia-smi" which applications are currently using your graphics card. Suspended processes, zombie processes or just multiple processes can also exhaust the amount of available surfaces.

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