[gst-devel] Mixing starting/stopping/disconnecting sources: multiqueue + freeze?

[Stefan Kost]

Am 02.01.2010 19:19, schrieb Florent:
> Hi
> 
>> For the moment, we are looking for live seamless (low-
>> latency) cutting and fading between sources. If I understand the
>> GNonLin documentation correctly, this is not possible with GNonLin
>> specifically. Correct?
> 
> low level gnonlin elements will let you do file-based compositing
> (i.e. defining portions of media to feed to the pipeline, such as e.g.
> second 2 to 16 from a video file) with the gstreamer approach, but it
> is not live performance oriented.
> 
> For live compositing/switching, you have two options as far as i know:
> * the lagacy videomixer [1], which might let you overlay multiple AYUV streams
> * gst-plugins-gl's glmosaic plugin [2], which is an example of
> opengl-based compositing in gstreamer. It can be used as a starting
> point to create a video mixer
> 
> There used to be a "switcher" element, but i don't know why it disappeared.

There are {input,output}-selectur elements

Stefan
> 
> [1] http://gstreamer.freedesktop.org/data/doc/gstreamer/0.10.1/gst-plugins-good-plugins/html/gst-plugins-good-plugins-videomixer.html
> [2] http://cgit.freedesktop.org/gstreamer/gst-plugins-gl/tree/gst/gl/gstglmosaic.c
> 
> Florent
> 
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