[FFmpeg-soc] module for watermarking videos with alpha channels PNG logo

Bobby Bingham uhmmmm at gmail.com
Thu Sep 6 21:23:42 CEST 2007

On Wed, 5 Sep 2007 10:31:39 +0200
"Víctor Paesa" <victorpaesa at googlemail.com> wrote:

> Hi,
> On 9/4/07, Thierry Delaitre wrote:
> > Is there a module I can use for watermarking videos with FFMPEG ?
> >
> > I tried pip and watermark but the quality of the logo on the video
> > does not sound too good. I'm using alpha channels PNG logo.
> The SOC libavfilter project has a "vf_overlay" filter that you may
> want to try (I haven't yet).
> And (though really this is a question for the ffmpeg-user mail list)
> the imlib2 vhook deals
> well with alpha PNG logos.

the vf_overlay filter does not currently handle alpha at all.

Bobby Bingham
Never trust atoms.  Or anything made of atoms.

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