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Display image in vlc output

Posted: 28 Dec 2009 23:02
by juraj
Hi,

is there any way how to display an image (or text on the fly) in vlc output. I would like to display a semitransparent image in video just like vlc does it with snapshot preview when snapshot is taken. Should I create a couple of new functions for that in libvlc or is already something there? Can OSD or marquee_option be any help for me? Actually I don't understand exactly what marquee is.

Thanks!
Juraj

Re: Display image in vlc output

Posted: 12 Feb 2010 13:47
by ppaulojr
I have the same problem, but still didn't find an appropriate solution.

I wish the libvlc had more documentation.

Re: Display image in vlc output

Posted: 13 Feb 2010 10:21
by Rémi Denis-Courmont
The marquee filter overlays text on the video, while logo filter adds, well, a logo.

Those are programmatically available only from LibVLC 1.1.

Re: Display image in vlc output

Posted: 18 Feb 2010 17:22
by alb84
It would be great for my application to have a continuos video stream and overlay a semitrasparent image generated with alpha channel and containing some augmented reality information... would that be possible with the new API? when 1.1 will be aproximately available? possibly with some example or documentation about these new APIs?

Re: Display image in vlc output

Posted: 18 Feb 2010 18:26
by Rémi Denis-Courmont
The logo filter can only add an image from a file. This might be awkward if the overlaid content is dynamic.

Re: Display image in vlc output

Posted: 07 Apr 2010 23:47
by senob31
Hello, :D
I begin development with libvlc.
Have you un idea for take snapshot of a streaming video ???
is there a function for that? thanks for reply... :wink:
i read a video from rtsp stream on my Qt Application(based on: http://wiki.videolan.org/LibVLC_SampleCode_Qt), but for the moment, there is no event between my application and the playing widget ...