For Rockchip players you have to set the size to EXACTLY the native resolution of the display (e.g. 320x240) If the movie is widescreen, then it has to be padded out top and bottom so it's 320x240 no matter what the picture size actually is.
They will tolerate several framerates, but they have to be integer. You can't do 23.98, f'rinstance.
viDrop is the answer for doing the converting. Don't even bother with anything else.
I use 15 fps and about 90 kbit/s 2-Pass for the video and 48 kbit/s for the audio. Works fine and the movie is only ~100 MB. Very important to tick the 2 Pass box. The picture is just slightly artifacty but, hey, this isn't Home Cinema. I'd rather have 30-odd movies to choose from, which I do, as well as hundreds of audio tracks. I use MP2 at 64kb/s which sound just fine to me. The only thing I wish for is longer battery life.
-freddy
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