So i have a source which is 540x720 if it matters. It was processed with a deshaker, and because of that there are occasional black borders, several pixels wide.
What happens is after encoding these black areas get filled by stretching the actual image. The width of the video stays 540. It seems to not happen with top/bottom fields, only the sides.
I noticed that the video is stretched even at moments when there is no borders, it's like the image just became wider by 4-5 pixels.
The right-hand black border got filled (covered) completely throughout the whole video, I guess that's what this stretch is.
I'd very much like to get rid of this but I don't know what exactly enables it. My command line is
Any help would be greatly appreciated.Code:ffmpeg -i input.avi -vf "colormatrix=bt601:bt709" -c:v libx264 -preset medium -crf 17 output.mkv
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