GstGLImageSink include

[apap]

Hi all,

I'm starting to dev with gstreamer, I want to use GstGLImageSink but I
cannot find the header with the definition, am I missing something ?

About the signal "client-draw", the definition of code and doc does not
match here (check parameters type and count) :
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html#GstGLImageSink-client-draw

Also, classes use in properties links are dead on this page
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html
, and often ones related to gl here
https://gstreamer.freedesktop.org/documentation/plugins.html .



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[Nicolas Dufresne-5]

Le vendredi 18 mai 2018 à 01:23 -0700, apap a écrit :
> Hi all,
>
> I'm starting to dev with gstreamer, I want to use GstGLImageSink but I
> cannot find the header with the definition, am I missing something ?

GStreamer is plugins based, all plugins implement a common interface,
hence there is no per element headers. To get this element:

  element = gst_element_factory_make ("glimagesink", NULL);

>
> About the signal "client-draw", the definition of code and doc does not
> match here (check parameters type and count) :
> https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html#GstGLImageSink-client-draw

When connecting a signal, use g_signal_connect() and cast all function
pointer using G_CALLBACK().

>
> Also, classes use in properties links are dead on this page
> https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html
> , and often ones related to gl here
> https://gstreamer.freedesktop.org/documentation/plugins.html .

Thanks for reporting, we'll try and fix this, this is because these
element got moved from -bad to -base repository in last release. We
forgot to update some the the static content of the webpage. Correct
links are:

https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesink.html
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html

>
>
>
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[apap]

Thank you for your answer.

I just miss something, that's not clear in the doc, what are the correct
parameters of this callback
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-plugins/html/gst-plugins-base-plugins-glimagesinkelement.html#GstGLImageSink-client-draw
?



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[apap]

I'm trying to replace the video-sink of playbin by a glimagesink, here is my
code :

GstElement *play = gst_element_factory_make ("playbin", "play");
GstElement *glimagesink = gst_element_factory_make ("glimagesink", NULL);
g_object_set (GST_OBJECT (play), "video-sink", glimagesink, NULL);
g_signal_connect (glimagesink, "client-draw", G_CALLBACK (ondraw), 0);

 I 've got strange values in my callback "ondraw" , what am I missing ?



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[Nicolas Dufresne-5]

Le mardi 22 mai 2018 à 05:37 -0700, apap a écrit :
> I'm trying to replace the video-sink of playbin by a glimagesink, here is my
> code :
>
> GstElement *play = gst_element_factory_make ("playbin", "play");
> GstElement *glimagesink = gst_element_factory_make ("glimagesink", NULL);
> g_object_set (GST_OBJECT (play), "video-sink", glimagesink, NULL);
> g_signal_connect (glimagesink, "client-draw", G_CALLBACK (ondraw), 0);
>
>  I 've got strange values in my callback "ondraw" , what am I missing ?

Show us the signature at least, so we might be able to comment.
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[apap]

gboolean
ondraw (GstElement *object,
               guint     texture,
               guint        width,
               guint        height,
               gpointer        user_data)



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