ARM/N900/Tips and Tricks/DSP

Making TI DSP codecs work on MeeGo N900

1. Make sure you've got an SSH access to the N900
   • If you want it, see the article on USB networking
2. Install gst-dsp and dsp-tools
   • Get the RPM's from MeeGo Core repository
   • on N900: rpm -i <pkg.rpm>
3. Install gst-omapfb from devel:devices:n900
   • Go to download.meego.com and download gst-omapfb RPM package
   • on N900: rpm -i <pkg.rpm>
4. Get TI DSP binaries
   • The binaries can be found from Google Code
5. Copy the DSP binaries into N900 under /lib/dsp
   • on N900: mkdir -p /lib/dsp
   • on the folder with the unpacked binaries: scp * root@192.168.2.15:/lib/dsp
6. Verify that the DSP codecs work on the device
   • (As root) Load the mailbox_mach module: modprobe mailbox_mach
   • (As root) Load the bridgedriver module: modprobe bridgedriver base_img=/lib/dsp/baseimage.dof
   • Test that the binaries work by running dsp-test on the device. If the binaries work, it should return copied 1000 times successfully
7. Test video playback
   • Have a video clip with an MPEG4, DivX, XVid, 3ivc, H.263 or H.264 video stream in it.
   • Try e.g. this clip
   • (If logged in as root, cp /home/meego/.Xauthority /root)
   • export DISPLAY=:0.0 && xhost +
   • Test video playback with a video-only pipeline: gst-launch-0.10 filesrc location=<file> ! <demux> ! queue ! dspvdec ! omapfbsink
   • For MP4/3GP files, use qtdemux as <demux>, for MKV, use matroskademux, for OGG use oggdemux