http://bugs.maemo.com/index.php?action=history&feed=atom&title=User_talk%3ALardman 2026-04-12T14:44:58Z Revision history for this page on the wiki MediaWiki 1.15.5-7 http://bugs.maemo.com/index.php?title=User_talk:Lardman&diff=7397&oldid=prev 2008-09-22T10:04:27Z

<p>New page: Current projects: =DSP= ==Get dsp-tremor working== Have moved back to almost original lowmem-no-byte code, and back to sparse buffers (i.e. 8bits in each 16bit char) The problem is that...</p> <p><b>New page</b></p><div>Current projects:<br /> <br /> =DSP=<br /> <br /> ==Get dsp-tremor working==<br /> <br /> Have moved back to almost original lowmem-no-byte code, and back to sparse buffers (i.e. 8bits in each 16bit char)<br /> The problem is that I'm running out of memory, need to see what can be saved, and perhaps move some not-often-used stuff back to the original slab-allocator (which I thought was causing problems with buffer corruption, and I didn't think it would be too fast)<br /> <br /> ==Get dsp-mp3 working==<br /> <br /> I was forwarded some code by Siarhei Siamashka for a c55 mp3 decoder. Am working to get this plumbed in with the DSP Gateway<br /> <br /> ==EAP sink==<br /> <br /> Reverse engineer the EAP functions from, e.g. the pcm sink pcm.o, and create a stand along PCM sink.<br /> <br /> ==OpenMAX-style changes to decoder tasks==<br /> <br /> With a stand alone pcm sink, and an existing sbc sink (see my dsp-sbc Garage project), it would be possible (once a decoder of some sort is finished, i.e. mp3 or tremor) to keep all of the data on the DSP to avoid repeatedly copying back and forth to the ARM. I hope this will improve the usability of the sbc encoder task and allow it to be used with mplayer (atm it kills the video framerate; sound works fine though ;)<br /> <br /> ==Maemo summit presentation==<br /> <br /> Make this available somewhere (http://people.bath.ac.uk/enpsgp/nokia770/dsp/linux_summit.odp)<br /> Make my longer explanation available somewhere too, once finished.<br /> <br /> <br /> =Mapping=<br /> <br /> OSM tile and route server to use with maemo-mapper<br /> <br /> =VGA output=<br /> <br /> Look at how the XServer works, how to only update regions of the screen which have changed<br /> Look at the speed of the usb connection, if this is the limitation and it could be improved, there would be little need of the above.</div>

lardman