AVConverter/AVIConverter 2/3/4 or AVIConverter Smart/Smart 2 depends on MEncoder:
www.mplayerhq.hu and he is using a Converter.INI to give all converting parameters to MEncoder.exe.
These Converter.INI isn't well written, sometimes very bad, because the Rockchips RK260xA-player can only play Videos with ONE resolution:
RK 2602A - only 160x128 pixel
RK 2606A - only 224x176 pixel (sometimes 220x176 pixel)
RK 2608A - only 320x240 pixel
You could check my words at
www.rock-chips.com
All other resolutions have to be EXPANDed to the right resolution, like these example line of my personal adapted Converter.INI:
1-1-1=-ofps 20 -vf-add scale=128:104 -vf-add expand=224:176:-1:-1:1 -srate 44100 -ovc xvid -xvidencopts bitrate=200:max_bframes=0:quant_type=h263 -oac lavc -lavcopts acodec=mp2:abitrate=128
The Videopicture will be 128x104 pixel, but it will get black borders around until the Resolution reach 224x176 pixel.
I'm owner of two players with RockChips RK2606A: Auvisio ZAK4 (224x176) & Auvisio Mini Boom Box deluxe (220x176) and you could find my personal Homepage to this devices at
www.auvisiozak4.dreipage.de - there is also displayed my personal Converter.ini you can use it with AVConverter/AVIConverter 1/AviConverter 2/AVIConverter 3/AviConverter 4/AVIConverter Smart and AVI Converter Smart2.
One Note: My Resolutions higher than 320x240 won't work with the AVIConverter - theire only working with the first Version called AVConverter !
If you're tired of AVIConverter try the Original MEncoder with GFrontend 2007.3 - my Favourite now...
regards from germany, lca77