Hello,
In the v360 filter the alpha_mask option can be used to make unmapped
pixels transparent.
What's the simplest method for filling all transparent pixels with a color?
Let's assume the size of the video isn't known in advance.
This command line is working as expected:
ffmpeg -i input.mp4 -f lavfi -i color=red -lavfi
"[0]v360=e:ball:alpha_mask=1[a];[1][a]scale2ref,overlay=shortest=1"
output.mp4
But it looks unnecessary complicated to use a second input, scale it to
the same size, and then use overlay.
Does anybody know a better solution? The job is simple: If a pixel is
transparent, then fill it with a color.
I know it can be done with the geq filter, but that's too slow.
Michael
_______________________________________________
ffmpeg-user mailing list
ffmpeg-user@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-user
To unsubscribe, visit link above, or email
ffmpeg-user-requ...@ffmpeg.org with subject "unsubscribe".
