glimagesink and how it likes to do things

[Lasse Laursen]

Looking closer at available plug-ins, there's also something called 
GstGLUpload - which says that it uploads to GL Textures... Is this 
supposed to be used as a sink? Can it?

I've also just learned that if I wanted to use the GstGLShader object, I 
am forced to make use of the GstGLImageSink? Would GstGLUpload also be 
acceptable here?

Regards,
Lasse

On 08-08-2014 19:09, Lasse Laursen wrote:
> Hey y'all,
>
> I know this is kind of a beaten horse, but given the recent release of 
> the 1.4 version of gStreamer I thought I'd pull out a stick and give 
> it a few more whacks.
>
> Today I finally got around to working out how to properly use an 
> appsink to copy gstreamers video output directly into an OpenGL 
> texture. This works pretty well for now - but I'm constantly trying to 
> work out, if there's a way of bypassing having to copy the data 
> manually and just have gstreamer throw it into an OpenGL texture for me.
>
> The glimagesink looked promising, despite it's current 'bad' status 
> and... 0.10 reference manual? I take it, this is the most up-to-date 
> doc currently:
>
> http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-gl-plugins/html/
> (although it probably should eventually be merged into the 'bad' 
> folder given it's status?)
>
> Anyway - I had a closer look at the following example:
>
> http://cgit.freedesktop.org/gstreamer/gst-plugins-bad/tree/tests/examples/gl/generic/cube/main.cpp
>
> It seems as though the client callback receives a texture reference... 
> Is there anyway of specifying a texture to which one would like the 
> glimagesink to write, instead of receiving a reference to one in every 
> callback? If not - is it possible to somehow intercept the texture ID 
> earlier - and are there any guarantees that it doesn't change at some 
> point down the line?
>
> Regards,
> Lasse
>
> -- 
> Lasse Farnung Laursen
> Post.doc at the University of Tokyo
> www.lasselaursen.com <http://www.lasselaursen.com>
> FB: lasse.laursen <https://www.facebook.com/lasse.laursen>
> Twitter: @PMP_J <https://twitter.com/PMP_J>
>
>
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-- 
Lasse Farnung Laursen
Post.doc at the University of Tokyo
www.lasselaursen.com <http://www.lasselaursen.com>
FB: lasse.laursen <https://www.facebook.com/lasse.laursen>
Twitter: @PMP_J <https://twitter.com/PMP_J>
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