[FFmpeg-user] PSNR per frame

[Stani S.]

OK, I'm confused with the follwing output when video encoded with x.264:


Press [q] to stop encoding
frame=   11 fps=  0 q=-1.0 PSNR=Y:inf U:inf V:inf *:inf size=       6kB
time=100
frame=   20 fps= 18 q=-1.0 PSNR=Y:inf U:inf V:inf *:inf size=       6kB
time=100
frame=   29 fps= 18 q=-1.0 PSNR=Y:inf U:inf V:inf *:inf size=       6kB
time=100
frame=   35 fps= 16 q=-1.0 PSNR=Y:inf U:inf V:inf *:inf size=       6kB
time=100
frame=   41 fps= 15 q=-1.0 PSNR=Y:inf U:inf V:inf *:inf size=       6kB
time=100
frame=   46 fps= 14 q=51.0 PSNR=Y:inf U:inf V:inf *:inf size=       7kB
time=0.4

...

What does *PSNR=Y:inf U:inf V:inf *:inf  *mean? I need PSNR per frame, so
psnr per Y,U,V would be good.

Thanks!



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