[FFmpeg-devel] Change contrast/brightness in ffmpeg?

[Reimar Döffinger]

On Thu, Oct 14, 2010 at 05:17:13PM +0200, Stefano Sabatini wrote:
> On date Tuesday 2010-10-12 15:40:31 -0700, Richard Buteau encoded:
> > Hi all again,
> > Is there are way to change contrast/brightness in ffmpeg? (if yes how?)
> > I saw some mention of it in rgb to yuv function in libswscale but not in libavfilter.
> > I am probably missing something, if it's not there I could work on it if that's needed.
> 
> More work needs to be done in libswscale to expose the colorspace
> setting. Also we still need to complete the migration to the new
> libswscale API. Once this is done then contrast/brightness may be set
> through the scale filter.
> 
> *Or* you may have a look at the eq and eq2 MPlayer filters and port
> them to libavfilter.

Or write a "libmpcodecs" filter wrapper and use them through that wrapper :-)