I managed to write a very simple GStreamer element that uses
dsp-dummy to send buffers back-and-forth to TI's OMAP DSP.
You would need the DSP node in /lib/dsp/dummy.dll64P and that's it. No
dependencies of any kind, except GStreamer, of course
If everything works correctly it will behave as the "identity" element
(just copies the input to the output)
gst-launch-0.10 videotestsrc ! dspdummy ! xvimagesink