[gst-devel] Problem with GST_STATE_CHANGE_ASYNC

[thiagossantos at gmail.com]

On Fri, Dec 11, 2009 at 9:52 PM, S Boucher <stbya at yahoo.com> wrote:

> I do a gst_element_set_state() on a pipeline, and it returns
> GST_STATE_CHANGE_ASYNC.
>
> I then call gst_element_get_state() for that same pipeline to wait for the
> state change to complete, as per the documentation.  However, the program
> never returns from gst_element_get_state().
>
> The pipeline is made up of my own src element, as well as ffmpegcolorspace,
> panorama, volume, audioconvert, audioresample, autoaudiosink.
>
> Help on what to look at would be welcome.
>

If the state you're setting to is GST_STATE_PLAYING, the sink needs to
receive data in order to preroll and effectively change to the PLAYING state
(that's when the get_state call would return). Are you sure your src element
is providing data to the pipeline?


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-- 
Thiago Sousa Santos
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