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2 votes
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What are brightness, gamma, and lut filters doing to my video? What's the difference, which should I prefer?

Here's what all these settings do, typically. Some pieces of software define or apply them differently, but this should give a general idea. Brightness simply changes the brightness value of each ...
Cam's user avatar
  • 231
1 vote
Accepted

Blend the brightest pixels of a frame to the next with ffmpeg?

The lagfun filter can do this. Set decay to 1.
Gyan's user avatar
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1 vote

Which FFmpeg variable gives the total duration of a video?

Not practical within a filterchain, sorry. Filters are only passed information about each frame as they arrive. In fact, beside certain exceptions where side-data can be passed from the decoder to ...
filtuhchayn's user avatar

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