glshader opengl element gst1.5.1

[Hamdi Rakkez]

ok cool.

and does glshader can take vertex shader files besides fragment shaders ??

On Fri, Aug 14, 2015 at 11:05 PM, Matthew Waters <ystreet00 at gmail.com>
wrote:

> Hi,
>
> Currently you cannot just use any shader you grab off the internet in
> glshader.  If the shader is ill-formed (syntax errors, etc) then we will be
> unable to use it and glshader will error out appropriately (perhaps with
> the obscure error).  You can see some debug information by setting
> GST_DEBUG=3 or GST_DEBUG=gl*:7 for everything GL related about why it
> failed to initialize and what it was trying to do.
>
> The other thing to watch is that the attributes (position/texture
> coordinates) must match the gst_gl_shader_set_uniform*() calls in
> glshader.c otherwise GL does not know how to match the necessary
> information to render the quad.
>
> -Matt
>
>
> On 14/08/15 12:07, Hamdi Rakkez wrote:
>
> Hi all,
>
> I'm using *gstreamer1.5.1* on ubuntu 14.04 LTS
>
> My question is why can't I use any *shader* file with *glshader* element.
> In most of the time I get this error message from *gstglfilter.c* "Subclass
> failed to initialize"
>
> I have a simple *shader* file which works actually but a lot of other
> files simply don't and *gstreamer* always come out with the same error
> mentioned above.
>
> Best,
> Hamdi
>
>
>
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