Does FFMetrics automatically upscale distorted video?

fifonik / FFMetrics

Visualizes Video Quality Metrics (PSNR, SSIM & VMAF) calculated by ffmpeg.exe

562 stars 22 forks source link

Does FFMetrics automatically upscale distorted video? #138

Closed MationPlays closed 3 months ago

MationPlays commented 3 months ago

Hello, with VMAF the resolution must be the same of reference and distorted. When calculating vmaf using ffmpeg over command-line an error occurs if the resolution is not the same. Inn FFMetrics there is no error and a vmaf-score gets calculated. My Question is what FFmetrics is doing? Does it automatically upscale the distorted video to match the reference? Thanks a lot!

fifonik commented 3 months ago

Yes, it is upscaling distorted video to ref resolution. You cah turn on FFMpeg commands logging and check what commands it is issuing.

MationPlays commented 3 months ago

Thanks, I now tested it and there are the same vmaf values as using ffmpeg with scale filter

MationPlays commented 3 months ago

where can I see the log? Is it live logging? I found Options->"Write FFMpeg commands to log"

fifonik commented 3 months ago

Yes, this is the option. When ticked, you should see FFMetrics.log aside of FFMetrics.exe.

MationPlays commented 3 months ago

Sorry I don't see it, I only have the metrics plot

fifonik commented 3 months ago