FFMetrics does not start up reliably and when it does the start button is greyed out

fifonik / FFMetrics

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

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FFMetrics does not start up reliably and when it does the start button is greyed out #131

Closed efassbender closed 3 months ago

efassbender commented 4 months ago

Hey everyone, I use FFMetrics every now and then to test the quality of an encode and up until today it has been working fine. When I tried to start it today, it just wouldn't start. The Windows 10 Reliability Monitor reported it as "Stopped Working" even though it didn't even (visually) start up. Upon restarting the PC and a couple more tries, it eventually started and I selected the two files, however, now the start button is unavailable. I have downloaded a new instance of v1.3.1 (same one as before) and ffmpeg.exe is in the application's folder. Does anyone have an idea what may be causing this issue?

fifonik commented 4 months ago

Please use the latest version 1.4.9b1

efassbender commented 4 months ago

@fifonik thanks. I get the same result with the latest beta, however, I think I figured out the cause of this - I was using a reference video that was encoded with Cineform. Does FFMetric support this codec?

fifonik commented 4 months ago

FFMetrics is just a frontend, it is up to FFMpeg to support all these formats. I've just calculated uncompressed vs cineform and do not have the issue:

fifonik commented 4 months ago

You can try troubleshooting steps.

fifonik commented 4 months ago

BTW, I do remember similar issues were caused by too small timeout for FFMpeg calls.

In this case you can try:

Use shared version of FFMpeg (exe + dlls) as it is usually faster on consecutive calls;
Exclude FFMpeg (not FFMetrics) from Anti Virus checks. AV can slow down the large ffmpeg executable quite a lot and FFMpeg is called by FFMetrics many times;
Double check that your video files not checked by AV;
Create FFMetrics.conf and further increase timeouts (see FFMetrics.conf.example).

efassbender commented 4 months ago

Thanks for your help. It seems like I am having some other issues with the PC that I need to address before I can investigate this further. Talk soon!