[gst-devel] g_main_loop

Robert Scott robert.b.scott at sbcglobal.net
Thu Jun 29 17:43:42 CEST 2006

Hello Andy,

I am using 0.10.  I believe that I may have actually uncovered the  
real issue indirectly by switching to g_object.  It appears that the  
gst_element_query_position and gst_element_query_duration do not  
handle the case when the playbin is not either in the PLAYING or  
PAUSED state.  Whenever I call this functions from another state,  
than it appears to render the playbin unusable.

I started noticing this behavior as I was piecing my program back  
together and reintegrating all of the functionality in the new  
model.  When I reinserted the queries for position, things stopped  
working.  When I added checks to see what state the playbin was in,  
everything started working again.

Does that make any sense?

> Hi Robert,
> On Sat, 2006-06-24 at 16:10 -0700, Robert Scott wrote:
>> I guess that calling gst_element_set_state is
>> not thread safe.
> Not sure what you're up to, but that function is definitely threadsafe
> in 0.10.
>>   What I had to do was create a new gnome object
>> which wraps all control of gstreamer playbin.
> Unnecessary. You probably are not using playbin correctly. There  
> should
> be no need to know about threads when using playbin.
> Regards,
> -- 
> Andy Wingo
> http://wingolog.org/

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