compare quality of h264 streams encoded by x264

Mfreak · Messages: 192 Registration: 02.28.2003

Hi all, plz how can we compare quality of 2 h264 streams encoded by x264 for the same input but with different configuration of x264

J.R. (Phx) · Messages: 15 Registration: 04.27.2002

Personaly, I compare with my eyes.

Doglass · Messages: 469 Registration: 12.08.2002

With x264's Psy-optimizations enabled (and they are enabled by default), you can only use your eyes for comparison ;) If you want to compare PSNR or SSIM, you should use "--tune psnr" or "--tune ssim", otherwise the results will be misleading...

zeehaa · Messages: 297 Registration: 08.21.2002

you have reason; eyes are the best way to compare quality but always there are some details cannot be seen by eyes specially when the encoding time and the size of each streams are different plz how can we use psnr or ssim to compare quality, I've used them but I've didn't manage to compare quality of streams thx for your help, MSM

ChosenGSR · Messages: 2,361 Registration: 11.09.2003

You can use a compare script in avsp, for example.