Paul M wrote: > On 04/03/2008, Yan Seiner <[EMAIL PROTECTED]> wrote: > > What's a good bitrate/resolution/container/etc for mplayer on a > > Zaurus? > > there's been a lot of discussion on oesf forums about it at various > times. > > basically, scale and rotate the video so that the zaurus has to do the > least amount of work possible, so keep the H rez 640 or the Vertical > res = 480 so there's no scaling at all (i.e 640x480 for normal 4:3 > movie, or 640x400 for 16:9), or 320x240 as quarter rez.
It is also important to select correct video output. mplayer -vo pxa should have the best performance, but it crashes my Z for 480x640 videos with infinite swapping. fbdev works, x11 is slower. pxa and fbdev are not aware of windowing system. The best work-around is going to full-screen mode with the terminal window and supressing all console output. You may also experiment with faster-decompression-but-longer-files codecs. It will or will not help. > sound should be 48KHz sampling rate, or 24, stereo or mono. compressed > bitrate can be as little as 96kbps for mono to give adequate fair > quality for speech, 128kbps for joint stereo. IME the zaurus seems to > struggle when it has to resample the sound stream for a different > sampling rate. Yes, there is this problem, but it has nothing to do with software resampling. I suspect bad setup of codec registers. But using native sample rates (based on 44100 or 96000 base frequency, see the wm8750.c kernel source for complete list of native sample rates) could save some CPU time. > feel free to have a play with a script I hacked up here which will > encode files or rip a DVD: > http://www.zaurus.org.uk/download/scripts/avi-recode-2pass.sh Thanks for the tip. -- Stanislav Brabec http://www.penguin.cz/~utx/zaurus _______________________________________________ Angstrom-distro-users mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/angstrom-distro-users
