Difference between revisions of "BeagleBoard/DSP Howto"
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This article explains how to use the DSP with TI's deliverables. | This article explains how to use the DSP with TI's deliverables. | ||
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| + | = Setup = | ||
== Kernel driver == | == Kernel driver == | ||
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CONFIG_MPU_BRIDGE=m | CONFIG_MPU_BRIDGE=m | ||
</pre> | </pre> | ||
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== TI binaries == | == TI binaries == | ||
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./configure --prefix=/usr | ./configure --prefix=/usr | ||
make DESTDIR='''rootfs''' install | make DESTDIR='''rootfs''' install | ||
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| + | = Running = | ||
| + | |||
| + | On the board use this to load the module: | ||
| + | |||
| + | modprobe bridgedriver base_img=/lib/dsp/baseimage.dof | ||
| + | |||
| + | You should be able to use the gst-openmax elements now: | ||
| + | |||
| + | gst-launch-0.10 filesrc location="foobar.avi" ! avidemux ! omx_mpeg4dec ! omapfbsink | ||
Revision as of 09:04, 22 September 2008
This article explains how to use the DSP with TI's deliverables.
Contents
Setup
Kernel driver
In order to use the DSP you would need TI's bridgedriver module on the kernel. For that you would need Hiroshi's patches on top of linux-omap:
git clone http://www.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6.git
cd linux-omap-2.6
wget http://4869037.web.fc2.com/tidspbridge-20080920.tgz
tar xvzf tidspbridge-20080920.tgz
git am *.patch
make omap3_beagle_defconfig
Then make menuconfig and add the following options in the menuconfig:
CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=14 CONFIG_MPU_BRIDGE=m
TI binaries
In order to get the DSP binaries for multimedia processing you need to download TI's OpenMAX IL package. Once you have extracted the tarball you'll have to run the installer TI-OMX-Sample-Firmware-0.3-Linux-x86-Install and accept the license agreement.
You would end up with a bunch of binaries in lib/dsp, copy them to your root filesystem at the same location (/lib/dsp).
OpenMAX IL
The easiest way to use the DSP capabilities is through the OpenMAX IL API, but in order to compile TI's implementation a special DSP library is required.
libdspbridge
git clone git://github.com/felipec/libdspbridge.git cd libdspbridge make DESTDIR=rootfs install
libomxil-ti
git clone git://github.com/felipec/libomxil-ti.git cd libomxil-ti make BRIDGE_CFLAGS=-I../libdspbridge/inc BRIDGE_LIBS=-L../libdspbridge/lib DESTDIR=rootfs install
gst-openmax
You would need to compile gst-openmax inside scratchbox:
git clone git://github.com/felipec/gst-openmax.git cd gst-openmax ./configure --prefix=/usr make DESTDIR=rootfs install
Running
On the board use this to load the module:
modprobe bridgedriver base_img=/lib/dsp/baseimage.dof
You should be able to use the gst-openmax elements now:
gst-launch-0.10 filesrc location="foobar.avi" ! avidemux ! omx_mpeg4dec ! omapfbsink
