VMAF for VVC

[andini2807]

Hi, my name is Antonio and I am doing a final Master thesis. I need to get the VMAF value of an VVC video stream. How I can do it? Thank you.

[alexander-g2]

VVenC doesn't report VMAF scores. Use VVdeC for decoding, and VMAF for measuring quality.

Encoding:
vvencapp -s 640x360 -r 60 -c yuv420_10 -o VVC.266 -i source.yuv

Decoding:
vvdecapp -b VVC.266 -o VVC.yuv

Measuring quality:
vmaf -r source.yuv -d VVC.yuv -w 640 -h 360 -p 420 -b 10

[andini2807]

Football.mp4

Hello, I have an issue trying to get the VMAF score of an 1920x1080 10 seg, 30 fps video.
I used this command for encoding:
vvencapp -i Football.yuv -s 1920x1080 -c yuv420 -r 30 --preset medium --qp 31 --qpa 0 -ip 64 -t 4 -o Football_vvc_qp31.266
This one for decoding:
vvdecapp -b Football_vvc_qp31.266 -o Football_vvc.yuv
and this one to get the VMAF:
vmaf -r Football.yuv -d prueba.yuv -w 1920 -h 1080 -p 420 -b 8
and I get a VMAF of 6 points. Just to check I encoded the Football_vvc.yuv file with h264 and the video had 20 seconds duration and horrible quality. What I am doing wrong? Thank you.

[alexander-g2]

Add --internal-bitdepth 8 to your VVenC command.

vvencapp -i Football.yuv -s 1920x1080 -c yuv420 --internal-bitdepth 8 -r 30 --preset medium --qp 31 --qpa 0 -ip 64 -t 4 -o Football_vvc_qp31.266

Use vvencapp --fullhelp for more info.

[andini2807]

I changed my video to bitdepth 10 and now works perfectly. I will try --internal-bitdepth 8 too. Thank you very much. You help me a lot.