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Old 1st February 2019, 22:25   #41  |  Link
WorBry
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Join Date: Jan 2004
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I've been testing the Vapour Synth VMAF (r3) plugin with a high quality 1080/50p source (CrowdRun, lossless x264 8bit 420 Intra) encoded to x264 over a range of CRF values.

When testing the source file against self (as a control), which should be lossless, I was surprised to find that the VMAF score is not 100.



Is this normal ?

Script:

Code:
import vapoursynth as vs
core = vs.get_core()
clip = core.ffms2.Source(source=r'X:/CrowdRun_x264_lossless.mp4')
result = core.vmaf.VMAF(clip, clip, ssim=True, ms_ssim=True, psnr=True, model=0, log_path=r'X:/VMAF_r3.log' )
result.set_output()
Also the log reports VMAF version="1.3.11", not 1.3.13

Quote:
Originally Posted by HolyWu View Post
Update r3.
[LIST][*]Update libvmaf to v1.3.13, which includes performance improvement.
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Last edited by WorBry; 1st February 2019 at 22:28.
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