About your 2 points :
When you say "very bad perf" : is it worse than with the previous version or the same ?
As i said in my previous post : i have not observed any significant load change with this new version but it was not worse.
Many thanks for the demuxer=lavf tips ! you are right i may help ...
For the quality : do you speak about the artefacts on the video you sent to me ? because even on my desktop mplayer , this video has very bad artefacts on the background (especially at the begining).
I dont understand what is buggy : if you have a video that is displayed correctly on a desktop mplayer and which is obviously not correclty played on my tomtom mplayer build, then i would be glad to investigate but i have not seen such a thing for now...
Still, about quality and the decoder with this build : we have the most uptodate libavcodec library : i can hardly see how to improve, at least at the decoding level (of course postprocessing could help... ).
I have other questions :
How do you measure the effective FPS in your tests ??
Which version of mobilnova do you use ? (i repeat myself : they use mplayer , a quite old version if i remember correctly)
I was also wondering if it may be a problem of memory pressure : you could do a test to launch directly mplayer from a script without tomplayer (of course, then the menu and the skin will not be available but obviously we would free some memory for mplayer itself) to check if it helps regarding performances, besides it would enable to play with the launch options (because there are some options that are always passed as parameters when i launch mplayer from tomplayer...)
basically you just have to keep the begining of the tomplayergui.sh script (until line 77 where you have the comment : # Tomplayer / start_engine loop ) then you drop the rest of the file and replace by a command like :
./mplayer -quiet -include ./conf/mplayer.conf /mnt/movinand/video/myvideo.avi
At last i have a smaller build (it is not so small but it is the smallest that can be built from my current snapshot) : you can get it at http://www.tomplayer.net/mplayer2.zip
(here again i have not been able to see a load improvement...)
I hope we will be able to find how to get the best from your device and to improve tomplayer...
Edit : another idea : you can try to encode with mono audio (any with the internal speaker it is not a problem) to see if that helps...