Sustaining A Constant Fps


Azure

Trust the recursion...
Joined
May 21, 2003
Messages
3,805
Location
California, USA
I recently encoded some Beatmania IIDX videos for my GP32 and I noticed that there were skipping a lot either in one specific section or skipping forever after playing for a certain amount of time. My encode settings specified that the FPS would be under 15, and I play at 166, but I still got the problem. I tried it at 133mhz and the problem was worse, which led me to believe it was FPS-related. So, I did frameskip 5 instead of 4 (Original FPS 59.940) is and that one section where it would skip wouldn't skip anymore, and that one video that would start skipping forever after playing for a certain time didn't skip forever.

Has anybody encountered something similar like this? It seems like the FPS changes for a while or certain during a point in the video. Is it possible to make it permanently (sp?) a constant number (I'm not too thrilled about watching a IIDX video at 12fps)?

Thanks.
 
your giving your gp32 too much to do. If you want better fps take down the bitrate of the audio and the video. it can only do so much. plus you are watching at 12fps now. I never go over 15fps or 192kbps but usually 128kbps
 
I don't think Im giving it too much to do. I have the video set at 128kbps, the sound is set at 44100Hz Stereo and 32kb 11,025Hz 4kb/s. And this is all at 166mhz.
 
Does the sound go out of sync when the frame skips? If so I would say it's to much for your gp to handle. I've encoded shows at 25fps @ 320x176 in mono and I could watch
it at 150.
 
@Azure, Why don`t you use the convert to FPS option in Virtual Dub ?

Indicated here by the black arrow:

VD-FPS.jpg


You shouldn`t have any problems then.

Trooper
 
I use 10 frames per second and total of 171kbps works perfect great quality etc Oh and you can run it at 100mhz so battery life is premium. Best settings I've found.
 
trooper - The version that has that feature tends to produce files that are larger than earlier versions.
 
Goity posted on Aug 8 2004 at 04:43 AM said:
only if u use divx
Which is what I use. For me, Xvid doesn't work too well (both on my PC and my GP).
 
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