Mplayer Plays High Quality Videos In Beta4 640x480

[Da_Blitz]

This is very nice, i was just reading about this on a directFB mailing list i may have to consider comming back to pdaXrom

[guylhem]

First, I can't get acceptable performance with sound enabled even after trying all possible "-ao" options. Does anyone know how to get sound working smoothly with video?

Which kernel do you use? Type uname -a
On 2.4 you *must* encode at a specific bitrate, 48 000 IIRC, or the CPU will have to handle the conversion and therefore slow down.

Try to convert to 512x384, and see which framerates work better.

Guylhem

[wrc4]

Which kernel do you use? Type uname -a
On 2.4 you *must* encode at a specific bitrate, 48 000 IIRC, or the CPU will have to handle the conversion and therefore slow down.

Try to convert to 512x384, and see which framerates work better.

Guylhem
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I'm using pdaXrom1.1.0beta1 so the kernel is 2.4.18

I have been using DivX/Xvid codec to convert my files. When I converted the film to 512x384, the "-vo w100" stopped working. (I mean the screen started to flickering). It seems any resolutions between 512x384 and 320x240 are not accelerated.

After that I tried a standard NTSC VCD file(352x240x30fps, .DAT file),  The "-vo w100" option had bad performance. Without audio the framerate was much lower than 30fps(like slow-motion, even if I turned "-framedrop" on). When I turned sound on, the speed was normal but there were a lot of framedrops.

However, with "/vo fbdev -fb /dev/fb0" the sound and video are all perfect. the only problem is the "-fs" doesn't work. The screen size is limited to 352x240.

Since mpeg file and avi file use different decoders, maybe the optimum parameters are different.

I think I need to do more research on this.

[anunakin]

Any here know if we can rotate a video with ffmpeg? I using mencoder in this script todo it ....

Code: [Select]

#!/bin/bash
ffmpeg -i $1 -f avi -r 29.970030 -b 768 -ar 24000 -ab 64 -s 640x480 $1.mpg
mencoder -oac copy -ovc lavc -vf rotate=1 -o $1-r.mpg $1.mpg
If you have a video, and dont want make a new file rotated... can use this command:

Code: [Select]

$ mplayer -vo fbdev -fb /dev/fb0 -vf rotate=1 video.mpg