Judging from your discussion with Felipe this is probably no longer
relevant, but perhaps somebody else may benefit...
You need to load the cmem module - it allocates physically contiguous
memory for use by the hardware (which is actually completely unnecessary
because the ISP peripheral that does the rendering has an MMU, but that's
how TI implemented their DMAI...). When loading the module, you have to
specify the sizes you want to be able to allocate. I have this:
# CMEM Allocation
# 1x3317760 Circular buffer
# 3x1843200 720p video buffers
# 3x829440 PAL video buffers
# 1x691200 NTSC video buffer
# 1x345600 Underlying software components (codecs, etc.)
# 1x1 Dummy buffer used during final flush
modprobe cmemk allowOverlap=1 phys_start=0x86300000 phys_end=0x87300000 \
pools=1x3317760,5x1843200,3x829440,1x345600,1x691200,1x1459200,1x1
OpenEmbedded should set up sane defaults, though.
Regards,
Arnout
On Wednesday 17 February 2010 10:50:02, Tejas wrote:
> Hello All,
>
> I have taken up libgstticodecplugins.so to my library path
> and following command is applied.
>
>
>
> Gst-launch-0.10 filesrc location=1.mp4 ! mpeg4parser ! mpeg4dec !
> ffmpegcolorspace ! TiDmaiVideoSink
>
>
>
> But I am getting following error.
>
> "CMEM Error: init: Failed to open /dev/cmem: 'No such file or directory'
>
> Setting pipeline to PAUSED ...
>
> ERROR: Pipeline doesn't want to pause.
>
> Setting pipeline to NULL ...
>
> FREEING pipeline ."
>
>
>
> Please guide me where I am wrong.
>
>
>
> Thanks In Advance,
>
> Tejas.
--
Arnout Vandecappelle arnout at mind be
Senior Embedded Software Architect +32-16-286540
Essensium/Mind http://www.mind.be
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