I occasionally get GST_IS_PAD() assertion failure warnings when querying my 
pipeline's audiosink. These are caused by vorbisdec calling gst_pad_query() on 
its sinkpad while the sinkpad is NULL. 
 
Patch attached. 
 
Cheers  
 -Tim 
 
Nov 11 15:51:55 <__tim> hmm, I'm getting GST_IS_PAD() failures in the call 
from vorbisdec.c, 248 occasionally when querying the audiosink 
Nov 11 15:52:47 <BBB> __tim, yeah, that's when we're draining 
Nov 11 15:52:57 <__tim> dec->sinkpad is NULL in that case.  So maybe it should 
be   if (!dec->sinkpad || !gst_pad_query()) ? 
Nov 11 15:53:34 <BBB> __tim, feel free to provide a patch that removes the 
warnings 
Nov 11 15:53:49 <BBB> because the query failures are not bad 
Nov 11 15:54:10 <__tim> well, if it's something known that needs fixing, then 
it's better to leave it there 
Nov 11 15:55:57 <BBB> __tim, it doesn't need fixing 
Nov 11 15:56:05 <BBB> __tim, or, rather, apart from the warning 
Nov 11 15:56:10 <BBB> it's just chain transition