[Bug 680904] wavparse src can not link to audioconvert when using USB sound card

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=680904
  GStreamer | gstreamer (core) | 0.10.36

--- Comment #16 from soho123.2012 at gmail.com 2012-08-07 12:09:31 UTC ---
the command "gst-launch" I used to test:
=========================================================================
gst-launch-0.10 filesrc location=/bin/audio_src_48k_le.wav ! wavparse !
audioconvert ! alsasink device="hw:0,0"
=========================================================================
I doubt whether the endian is wrong on my target platform. 
Because I have try the command above. There is no error on x86 platform.
My target platform in big endian.

And from the log that I modify code by add g_warning(). 
I can see the result:
finding pad in wavparse0 compatible with filesrc0:src ===> OK
finding pad in alsasink0 compatible with audioconvert0:src ===>OK
But :
finding pad in wavparse0 compatible with audioconvert0:sink ===>Fail,
Could not find a compatible unlinked always pad to link to audioconvert0:sink


from gst-launch command , 
I do not set any capsfilter, 
Is there any thing wrong?


Thanks
Soho

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