Is Good Quality Video Possible On The 3100?

[ShiroiKuma]

Here is a link to a music video that plays just fine on my zaurus:
http://radnimax.com/misc/endless.avi
In fact, most music videos I download play just fine on my zaurus without any special re-encoding. 
The settings I have enabled in preferences under the video tab are "Drop frames", "Disable aspect ratio correction", and "Enable audio autosync".  All others are dissabled.  There is a slight jerkyness to this video only because it has to drop frames.  I got a script from somewhere in these forums that will convert anything to a better zaurus friendly format but I haven't used it in a while.  In my opinion it reduces the quality a bit too much.  I'll eventually get around to twiking it to better sute my needs, but I haven't considering they already play at acceptable speeds.

If you want any more info, let me know.  You can't get ANY 640x480 videos to play at acceptable framerates?
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OK, I've tried this one and cannot play it, it's super slow...

So, there must be something in the settings...

I see you're using the standard Sharp ROM on a 3100. I have a 3200 with Cacko...

How did you install Kino and Mplayer? Did you use Cresho's package, or which ipks did you install?

Do you have any mplayer specific arguments passed to mplayer from Kino's settings?

[xamindar]

Hmm, ok.  Here are the packages that I am using:
(from http://my-zaurus.narod.ru/kino.html)


bvdd-0.4.0-1
mplayer-bvdd-iwmmxt-1.1.5-1
kino2-0.4.3c

and of course tetsu's kernel.  I don't know what else it could be.  Also, I am overclocking to 520/260/130 when playing videos but it only improves performance a little.

[kahm]

I encode videos for my 3100 using Virtualdub - Xvid codec, 600kbps, MP3 audio at 128kbps/48000 khz

In testing I did a while back, the 48000 khz was important - playing video with 48000 khz sound was much better than 44000 or any divider thereof.

THe resolution I use is 320x240, 30fps, which is *perfectly* smooth on my non-overclocked Z. I've tried other options, including pre-rotated 640x480 and got good results, but the 320x240 videos play just as well on the Z as they do on my computer.

Visually, I find dropped frames or hitches in playback very annoying, and I don't want to overclock, so I stick with the smaller resolution. ALso, ripping DVDs is faster (1.75x real time) vs ripping at 640x480 (~1x real time).

[Legodude522]

Cresho, you rock!  I went and used the newest version of Kino2 and there was a ton of lag.  Then I went to use your version of Kino2 and it ran so much better on my SL-CK.

I still had better performance on my Tapwave Zodiac though  

[Cresho]

argh!

[speculatrix]

getting the audio rate correct in the file before the Z seems to be vital... it was like that on the 860 too. I suspect the sound driver has a very crude resampling algorithm to turn non-48K into 48k which eats up too much CPU. You might find that 24kHz as an exact multiple works OK too.