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BeagleBoard/gst-openmax

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Revision as of 17:11, 20 October 2008 by Felipec (Talk | contribs)

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This article explains how to use TI's DSP with GStreamer. You need to have the DSP properly set up following BeagleBoard/DSP_Howto.

Setup

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
./autogen.sh --noconfigure
./configure --prefix=/usr
make DESTDIR=rootfs install

Related stuff

In order to get the omapfb usable for video playback you need this kernel argument:

video=omapfb:vram:2M,vram:4M

And the GStreamer element:

git clone git://github.com/felipec/gst-omapfb.git
cd gst-omapfb
make DESTDIR=rootfs install

Running

You should be able to use the gst-openmax elements now:

gst-launch-0.10 filesrc location="foobar.avi" ! avidemux ! omx_mpeg4dec ! omapfbsink