Parse a stats_file written by the ssim or psnr filter.
stats_file
Each line is n:<frame> ... All:<value> (ssim) or psnr_avg:<value> / psnr_y:... (psnr). Returns the arithmetic mean.
n:<frame> ... All:<value>
psnr_avg:<value>
psnr_y:...
Parse a
stats_filewritten by the ssim or psnr filter.Each line is
n:<frame> ... All:<value>(ssim) orpsnr_avg:<value>/psnr_y:...(psnr). Returns the arithmetic mean.