Re: [Vala] gstreamer element

[Giulio Paci <giuliopaci gmail com>]

Here is my attempt to translate the GStreamer Plugin Writer's Guide's
example.

It is almost a one-to-one translation.


Unfortunately you have to change the gstreamer vapi file in order to
compile this.

In particular you have to replace the line "public Gst.Caps proxy_getcaps (Gst.Pad pad);" with "public 
Gst.Caps proxy_getcaps ();".

Giulio.


Il 11/04/2011 17:09, Jordi Burguet Castell ha scritto:

> Excellent! I was missing the "class construct" syntax. Very nice
> examples, thanks to you both!
> Jordi
>
>
> On Mon, Apr 11, 2011 at 8:26 AM, Sandino Flores Moreno <tigrux gmail com> wrote:
>   
> > Here is another example:
> >
> > https://github.com/tigrux/gst-plugin-omap4videodecbin/blob/master/gst/gstomap4videodecbin.vala
> >
> > On Mon, Apr 11, 2011 at 3:28 AM, Thijs Vermeir <thijsvermeir gmail com> wrote:
> >     
> > > Hey,
> > >
> > > On Sun, Apr 10, 2011 at 10:27 PM, Jordi Burguet Castell
> > > <jordi burguet castell gmail com> wrote:
> > >       
> > > > Hello,
> > > >
> > > > Has anyone tried to do a gstreamer *element* in vala? It sounds to me
> > > > like it would be worth because of the more succinct syntax, but I
> > > > could not figure out how to put the element and pads description in
> > > > the base_init() funtion (apart from putting the properties in the
> > > > class_init() and then doing the real initialization in the init()
> > > > functions).
> > > >
> > > > The only related documentation I've found is:
> > > > http://valadoc.org/references/gstreamer-0.10/0.11.5/index.htm
> > > > but nothing about how to put things in base_init()
> > > >
> > > > And also how to make a pipeline using gstreamer elements:
> > > > http://live.gnome.org/Vala/GStreamerSample
> > > > but not how to do the elements themselves.
> > > >         
> > > Yes, it's possible and not so difficult to write gstreamer elements in vala.
> > > Check this link for an example, it's an old link but I think the code
> > > is still valid:
> > > http://bazaar.launchpad.net/~asabil/vala/gst-vala-template/view/head:/src/vala-sink.vala
> > >
> > > Gr,
> > > Thijs
> > >
> > >       
> > > > Thanks,
> > > > Jordi
> > > > _______________________________________________
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> > > > vala-list gnome org
> > > > http://mail.gnome.org/mailman/listinfo/vala-list
> > > >
> > > >         
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> > >
> > >       
> >     
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>

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