Render text at certain moments with GnlComposition

Rossana Guerra guerra.rossana at
Tue Nov 22 09:43:18 PST 2011

hello, this is my scenario, I need a player with crossfade, for this I use
a Gnlcomposition. I didn't find out another way to do this, the playbin2
solution wasn't the best solution for this purpose.

Besides I need to blend text/png/jpeg/subtitles/clock over the video stream
according the playlist configuration (The playlist has this information,
time to blend a peg, if the video has subtitles or a clock, etcj).

The subtitles go with certain videos not all of them. In the same way, the
The png/jpeg has moments in the timeline to be render, they don't blend all
the time over one video.

I hope you understand the problem I need to solve.

Thanks for your interest.


2011/11/22 Thibault Saunier <thibault.saunier at>

> Hello,
> > Thanks for your response, the idea behind this is for subtitles.
> > I'll give a try, I am very clueles as new on this, so I couldn't get
> > the scope of these plugins.
> >
> > I'll write back with some result.
> Could you explain what you want to do exactly because if you just want
> to play a video with subtitles, there is no need to use gnonlin, and you
> should look at playbin2 that handles everything for you.
> Regards,
> Thibault Saunier
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at
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