Nanonote video playback update

David Kuehling dvdkhlng at gmx.de
Sat Apr 23 08:43:53 EDT 2011


Hi,

fixed some bugs with the video acceleration driver, and also went to a
bleeding edge mplayer+ffmpeg upstream version that gives quite a few
improvements (wrt bugs and performance).

now I can playback "fullscreen" video 320x176 pixels at 24 fps without
jerking.  cpu load stays mostly btween 50% and 80%.

This looks *very* nice.  The Ben's LCD reacts very quickly, seeing no
tearing on high motion scenes.  Speaker is also load enough to watch
movies that usually have lower average volume than CD audio.

If you want to give it a try, get the mplayer package here:

 http://mosquito.dyndns.tv/~spock/openwrt/MPlayer_r33304-1_xburst.ipk

download the acceleration driver and put it to /usr/lib/ :

 http://mosquito.dyndns.tv/~spock/openwrt/jz47xx_vid.so

Here is the full-screen encode of "Big Buck Bunny":

 http://mosquito.dyndns.tv/david/nanonote/bbb320.ogv

(screenshot: http://mosquito.dyndns.tv/david/nanonote/mplayer-bbb.png)

For playback, enter this command:

mplayer bbb320.ogv -vo cvidix -screenw 320 -screenh 240 -fs -demuxer ogg

(you might run out of memory if you don't specify -demuxer ogg)

For audio, as always, first run alsamixer, press 'm' on the master
volume to unmute it (showing 'OO' when unmuted).  Then during playback
you can adjust volume level via keys '0' and '9'

Happy Easter,

David
-- 
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