Beginner Using a2dpsink, avdtpsink, and rtpsbcpay

[johnwesting]

I'm using Ubuntu 12.04 and was hoping to payload and send MP3s using
Bluetooth and the BlueZ GStreamer plugin. My first test was to see if I
could stream SBC audio so I used the following command

gst-launch filesrc location=~/music/song.mp3 ! flump3dec ! sbcenc ! a2dpsink
device=00:01:1A:FA:5C:AA

and it streamed correctly. Next I wanted to see if I could use the rtpsbcpay
RTP payloader element, so executed the command

gst-launch filesrc location= ~/music/song.mp3 ! flump3dec ! sbcenc !
rtpsbcpay min-frames=-1 ! avdtpsink device= 00:01:1A:FA:5C:AA

but it failed with the following errors:

Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
0:00:02.056144952  2475  0x8cdb690 ERROR              avdtpsink
audio/gstavdtpsink.c:1912:gst_avdtp_sink_audioservice_recv:<avdtpsink0>
BT_START_STREAM failed : Success(0)
0:00:02.057025034  2475  0x8cdb690 ERROR              avdtpsink
audio/gstavdtpsink.c:1507:gst_avdtp_sink_stream_start:<avdtpsink0> Error
while stream start confirmation
0:00:02.063086880  2475  0x8cdb690 WARN                 basesrc
gstbasesrc.c:2625:gst_base_src_loop:<filesrc0> error: Internal data flow
error.
0:00:02.063446032  2475  0x8cdb690 WARN                 basesrc
gstbasesrc.c:2625:gst_base_src_loop:<filesrc0> error: streaming task paused,
reason error (-5)
ERROR: from element /GstPipeline:pipeline0/GstFileSrc:filesrc0: Internal
data flow error.
Additional debug info:
gstbasesrc.c(2625): gst_base_src_loop ():
/GstPipeline:pipeline0/GstFileSrc:filesrc0:
streaming task paused, reason error (-5)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

I looked at the code for a2dpsink and it simply loads the 2 elements into a
GstBin, I don't see why the functionality would be different when using
rtpsbcpay and avdtpsink explicitly.

If I can't use the rtpsbcpay element to payload SBC data I'm not going be
able to paylod MP3 data either. Does anyone have any idea what the problem
is?

John




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