Where's the best place to put an avidemuxer? No sound in my pipeline

[Rossana Guerra]

Hi I a beginner with GStreamer, I am clueless about of the behavior and role
of some GStreamer elements.
I wrote a pipeline to get transition effect between 2 avi videos, it works
fine but the sond, there's no sound at all.
I was told to put an avidemuxer, I've been working around with it without
luck.

I put it between the queue and the gnlcomposition,it doesn't work, then I
put after the queue. I wonder if some decoder is missing.

I tryed to adapt my pipeline to this one:
http://lists.freedesktop.org/archives/gstreamer-devel/2008-October/019240.html,
but any adaptation didn't work for me.

I got many kind of errors:
"GStreamer-CRITICAL **: gst_pad_link_full: assertion `GST_IS_PAD (sinkpad)'
failed"
or
Segment Violation

Thanks a lot,

Rossana

This is the pipeline I need to adapt to hear the sound:

bin
-----------------------------------------------------------------------------------------------
  alpha --------------------
                           |----------videomixer ------------fmpegcolorspace
  smptealpha ---------------
       ^
       |
-----------------------------------------------------------------------------------------------
       |
  Controller   // it controls the start-duration property of smptealpha



composition
--------------------------------------------------------------------------------------------------------
    gnlfilesource
                     |        |gnloperation| // contains the *bin*
described above
                     |
    gnlfilesource

--------------------------------------------------------------------------------------------------------
gnlopetation contains the *bin* described above

gnlfilesource, one for each video


pipeline
____________________
                       |
                       |
composition  operation |___________ queue ___________ sink
___________________    |
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