Video-Level Question


#1

In Shotcut, are we working with video levels in the range of 0 - 255 or 16 - 235? Is this selectable?

Thank you.


#2

Wow, a whole day and no response.
What is your intended use of Shotcut? Few people concern themselves with video levels these days unless they have professional sources/destinations. My old Sony Vegas had a Broadcast Levels filter to make sure cable/studio video did not exceed the prescribed limits. A professional video editor will have these filters. If you want to deal with them on a limited budget AviSynth and VirtualDub have levels filters among many others to make a technically accurate conversion. I looked in the FFmpeg docs and they were not addressed. Shotcut makes use of FFmpeg. Also, I am not sure how you would determine whether source video exceeded broadcast levels without a suitable calibrated monitor. -=Ken=-


#3

You would use a waveform monitor.


#4

IIRC, Adobe Premiere converts all video clips to RGB when the asset is added to a project. I know Shotcut decompresses as least partially all video added to a project but I don’t know if it does the processing in RGB. Perhaps a developer will read this and give us a clue. I know people were far more concerned about these issues when analog video was still widely used. -=Ken=-