FPS Calculation During VMAF Analysis

[Santhiya2001]

Hi team,

Could someone please clarify how FPS is calculated during VMAF processing?
I am comparing two .yuv files, and I noticed that the processing speed is very low for a 4K resolution video at 60 FPS.

For example:
Total frames: 1800
Processing speed: 0.25 FPS
VMAF score (v0.6.1): 1.125182

Is this expected behavior for 4K 60FPS content, or is there a way to optimize the performance?

Thanks in advance for your support.

Best regards,
Santhiya

commands i used is ,
./build/tools/vmaf \

--reference /testing/input-raw.yuv \
--distorted /testing/output-raw.yuv \
--width 3840 --height 2160 --pixel_format 420 --bitdepth 8 \
--model version=vmaf_v0.6.1 \
--feature psnr \
--feature psnr_hvs \
--feature float_ssim \
--feature float_ms_ssim \
--feature ciede \
--feature cambi \
--output output.xml