[Spice-devel] [PATCH spice-gtk 1/2] gstreamer: use custom playbin sink

[Christophe Fergeau]

On Mon, Jan 08, 2018 at 04:47:26AM -0500, Frediano Ziglio wrote:
> > 
> > Use custom playbin sink instead of just appsink.
> > In order to allow playbin to choose decoders that requires
> > more complex pipelines (e.g. pipeline that requires color
> > space conversion & uses gl memory).
> > The new sink composed as such:
> > ... ! autovideoconvert ! gldownload ! appsink
> 
> Adding more plugins add more should add more contraints.
> Why GStreamer is not able to choose the best combination?
> What happens if the decoder is not able to provide gl texture?

I would think this falls back to passing through the buffer:
https://github.com/GStreamer/gst-plugins-bad/blob/1.12/ext/gl/gstgldownloadelement.c#L158

Christophe
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