[gst-devel] Problems when using osssink in ARM

John Faith jfaith at freescale.com
Sat Sep 29 02:58:11 CEST 2007

I am seeing the same problem as is described earlier in this thread. 
When I use 'gst-launch -v filesrc location=file.mp3 ! mad ! audioconvert 
! osssink', I get silence like the original poster.

I have verified that madplay works on my ARM board, and I have heard the 
short sample tone using 'gst-launch audiotestsrc ! audioconvert ! 
audioresample ! osssink', so I assume the hardware, OSS driver, and 
gstreamer are mostly working.

As an experiemnt, I used filesink instead of osssink, and used an OSS 
utility to play the raw audio data.  This also produced sound.

Then I put printf()s in gst-plugins-good-0.10.5/sys/oss/gstosssink.c to 
print out the first 10 bytes of the data passed to gst_oss_sink_write() 
and saw only zeros, which explains the silence.

Has anyone been able to solve this problem or could advise on other 
debug methods?  I have used --gst-debug-level, but I am not sure what to 
look for.

If I replace filesink with osssink, what might cause the data to be all 


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