getting ssim and psnr from ffmpeg with NV hw decoder/encoder

Vincent Vega · 29th September 2023, 15:55

i'd like to transcode a video to h264 with NVidia card hardware, and get psnr and ssim metrics in output log, using ffmpeg. what would be the command line? it seems like a most basic task, but i just cant seem to find a way to make it work)

benwaggoner · 4th October 2023, 19:00

Quote:

Originally Posted by Vincent Vega

i'd like to transcode a video to h264 with NVidia card hardware, and get psnr and ssim metrics in output log, using ffmpeg. what would be the command line? it seems like a most basic task, but i just cant seem to find a way to make it work)

You should be able to use "--psnr --ssim --csv-log-level 2 --csv foo.csv" in ffmpeg. That'll give you a line per frame listing several flavors of PSNR and SSIM for each.

29th September 2023, 15:55	#1 \| Link
Vincent Vega Registered User Join Date: Feb 2004 Location: the tiny bubble of Creation Posts: 189	getting ssim and psnr from ffmpeg with NV hw decoder/encoder i'd like to transcode a video to h264 with NVidia card hardware, and get psnr and ssim metrics in output log, using ffmpeg. what would be the command line? it seems like a most basic task, but i just cant seem to find a way to make it work) Last edited by Vincent Vega; 29th September 2023 at 16:37.