Unable to create decodebin2 GstElement

[Krzysztof Konopko]

Hi Mandeep,

Your app is referring to GStreamer-1.0 which does not include decodebin2
(removed and replaced with "decodebin"). Use "decodebin" in your app
instead.

The reason it works with gst-launch is that it refers to your
GStreamer-0.10.x installation. If you want to mimic your app behaviour
on the command line use gst-launch-1.0 instead. You should see a similar
error as in your app.

HTH,
Kris

On 19/11/12 12:55, Mandeep Sandhu wrote:
> Hi All,
> 
> I'm stumped by a very simple issue. Somehow I'm not able to create a
> decodebin2 element.
> 
> This is how I create it:
> 
> GstElement *pipeline, *source, *decoder;
> 
> /* Initialisation */
> gst_init (&argc, &argv);
> 
> /* Create gstreamer elements */
> pipeline = gst_pipeline_new ("av-player");
> source   = gst_element_factory_make ("filesrc",     "source");
> decoder  = gst_element_factory_make ("decodebin2",  "decodebin2");
> 
> if (!pipeline || !source || !decoder)  {
>     g_print("pip:%p src:%p dec:%p \n", pipeline, source, decoder);
>     g_printerr ("One element could not be created. Exiting.\n");
>     return -1;
> }
> 
> The "decoder" is always NULL!
> 
> deocdebin2 works fine when used from gst-launch app. I'm attaching a
> compilable sample code which illustrates this issue. I'm compiling it
> using the following cmd:
> 
> $ gcc -Wall basicgst.c -o basicgst $(pkg-config --cflags --libs gstreamer-1.0)
> 
> It must be something trivial as I've not seen anyone complain about
> not being able to instantiate the decodebin2 element. Though I can't
> figure out what the issue might be! :/
> 
> Any hints appreciated.
> 
> Thanks,
> -mandeep
> 
> 
> 
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