[gst-devel] !GST_IS_OBJECT Problem

Tim Müller t.i.m at zen.co.uk
Thu Apr 12 14:58:22 CEST 2007

On Thu, 2007-04-12 at 14:51 +0200, Erwan Masson wrote:

> I got a big problem: The callback for have-data and handoffs did not
> work.
> Here is my code for the have-data cb:

>                  if(!mini_obj){        
>                  }else{
>                      if (mini_obj==NULL){
>                      }else{

Don't these two checks check for the same thing? :)

>                          if (video_frames == 25){                    
>                              g_print("\n  have data video\n");
>                              if (!GST_IS_OBJECT (mini_obj))
>                                  g_print("mini_obj is not an object");
>                              else
>                                  g_print(" name object miniobject %s
>         |",gst_object_get_name(mini_obj));


> And I always get on output "mini_obj is not an object".
> I got the same error with my handoff signal, the GstBuffer * is not a
> gstBuffer.

You should check with GST_IS_MINI_OBJECT(), GST_IS_BUFFER(),

GstObject is a proper GObject that derives from GObject. A GstMiniObject
is a new and completely different fundamental type that doesn't derive
from either GObject or GstObject.

Hope this helps.


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