[FFmpeg-user] Blur the Background with a Gradient

[Lou]

On Mon, 25 Aug 2014 15:31:06 +0800
Qianliang Zhang <zhangqianliang at gmail.com> wrote:

> May just use boxblur. Because I don not want to make a gradient for every
> different size.

Should be a trivial task if you script it with ffprobe to get the input
frame size: https://trac.ffmpeg.org/wiki/FFprobeTips

Or provide a patch to ffmpeg-devel to include a new gradient source
filter into FFmpeg. If that is not an option you can add a feature
request to do so on the FFmpeg Bug Tracker:
https://trac.ffmpeg.org/