[gst-devel] blocked glib idle/timeout

[Edward Hervey]

On Tue, 2009-03-24 at 17:18 -0700, Dan Taylor wrote:
> My simplest test pipeline has dvbsrc, mpegtsdemux (tried flutsdemux,
> too), and
> two filesinks (location is /dev/null).  There's a new pad callback to
> connect
> the demuxer to the filesinks, which works when the specified program
> number
> is in the stream.
> 
> When I use a program number that exists in the stream, the functions
> called with g_idle_add_full() and g_timeout_add_full(), and the shorter
> forms, are called.  When the program number doesn't exist in the stream,
> the timeout is never called, and the idle function stops within a
> second.
> The application is only consuming 3% of a CPU, though, so it isn't busy-
> waiting in the traditionally bad sense.
> 
> dvbsrc does not seem to care to where it sources data, and the only
> difference
> for the demuxer(s) is the the program number exists/does not exist.
> 
> Anyone got an idea where the demuxers could be blocking glib idle and
> timeout?
> 
> I'm working down at the sink end of the stream, so I don't know the
> demuxers
> very well, but I will look deeper into them if someone knows where to
> start.

  The first question is ... do you have a GMainLoop running ?
g_idle_add* and g_timeout_add* will only work if you have a main loop
running.
  The other question is ... why do you need to do that from the main
thread ? Can't you connect your pads directly from the 'pad_added'
callback ?

   Edward

> 
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