Over-overclocking Gpcinema

[p00pty2]

Is it possible to over clock GPcinema any higher then 166mhz, my GP32 can go alot higher but the options in GPcinema wont let me go any higher then 166mhz.

When its over clocked to 166mhz I can get full framerate with a high bitrate, but the audio jumps a little, if i could overclock it to over 200mhz im sure the audio would be perfect aswell.

 

[Vimacs]

you could hex edit the gpe, but thats quite a bit of work, there should be a howto somewhare on this forum.

 

[p00pty2]

thanks for the help

I have done a forum search, but been a n00b im not quite sure what im actually looking for

Could you point me in the right direction if its not to much trouble please.

Thanks B)

 

[lizard808uk]

Version 2 (beta) of GP Cinema goes to 178mhz.

 

[KoH]

nice one

Is GPCinema still been wroked on ?? overclocking to 178mhz allows me to keep the full framerate, use a bitrate of 350 and the audio is now in sync and pop/crackle free

If i could overclock higher the results would be even better

 

[KoH]

I find that using the beta 2 version all my videos play back slightly to slow, is anyone else finding this ??

Do anyone know of a fix for this problem ??

 

[cozmic]

nope.

What codec do you use?

 

[KoH]

I have tryed with both DiVX 4.11 and XViD and get the same slowness, there the same codecs i used when i was using the other version of GPcinema

 

[cozmic]

Thats odd. i have no problem with them.


But can you really notice that the flick is playing too slow??

Most people don't notice it whe na flick is playing @ 24 in stead of 25 fps...

 

[KoH]

I didnt really notice the picture, but the sounds is slightly to slow aswell thast whats making it unwatchable

 

[cozmic]

Heres my setting for maximum quality movies on the gp32 @ 166mhz


Resize to 320x200 (178 for widescreen = even faster)
Reencode audio to 11khz stereo and maximum 24kbps LAME codec (BIg inpact!)

Encode with divx4.11 @~114 kbps DUAL PASS!! maximum 25fps!!

It should work now..

 

[KoH]

Are we talking about the same version of GPcinema ??

Is 166mhz the highest your version will overclock.

That is the version I was using, untill i changed to Beta 2 which overclocks to 178mhz. where I now have the problem with the vidoes playing back to slowly.

It doesnt matter If i have the bitrate high or low, i ve tryed with a video at 130kbs and one at 450kbs and they both played exatly the same slowness (apart from the 450kbp video was much better quality obviusly)

 

[cozmic]

Were talking about Beta 2..

First of all.. You are talking about bitrates of 450kbs. This is much much to high for the gp32. Forget about it.


Second. You've got to seperate the VIDEO bitrate and the audio bitrate before we can talk.. The gp32 has major problems with audiobitrates above 24kbs AND 11khz.

Thrd.
The gp32 can halde a video file of ~175 kbs audio and video combinded @ 178mhz . No more..!

4th.
What framerate are we talking about? 30fps obviously needs more cpu power than 25fps or even 12fps.. although i'm not sure IF the gp32 can play 30fps

 

[KoH]

I just converted a episode of the simpsons to xvid, the video is 350Kbps and the audio is 48 kBit/s sample rate is 22050

At 166mhz the video plays smoothly, but the audio has a small anoying crackle where the is not quite enough CPU power.

At 178mhz the video run's smoothly aswell, but its slightly to slow, same with the audio. They are both still in sync, just not played back at the right speed.

I have tryed witha lower bitrate aswell (128Kbps) which plays fine on all settings apart from 178mhz, which plays it slightly to slow.

 

[cozmic]

It just seems that the video is playing fine.
But in fact it's just skipping frames. Thas why you hear crackling

What is your framerate??

Just use maximum of 140kbps for video at max 320x200 @ 25fps MAX
and maximum 24kbps for audio at max 11khz stereo or 22khz mono


Im sorry, the gp32 just can't do more @ 25fps ant this resolution

 

[sam fisher]

One, A bug in gpcinema2 makes it slow at 180.

two, I have had the gp32 350kbps and thats just the audio.

whoever said it cant handle for than 192kbps combined a/v stream is talking crap.

three, I have had it at 30fps with a slightly reduced bitrate.

 

[cozmic]

I'd like to see that sam a video file with 350kbps per second on the gp32

Now go shriek elsewhere

 

[sam fisher]

I'd like to see that sam a video file with 350kbps per second on the gp32

Now go shriek elsewhere

I did and I will attempt to recreat it oneday. I belive it ran at a rather low framerate. maybe even below 15. I used to put my display title as 'The Real Encoder' also it may have just been 320kbps. Either way it was high.

I'm not shrieking. You are with your 175kbps combined A/V stream. jesus christ you can bloody do that as low as 133mhz in some cases!

 

[cozmic]

Were talking 25fps
Jesus christ send me your 25fps example avi.
It's only 5 minutes work

 

[OMG]

Were talking 25fps
Jesus christ send me your 25fps example avi.
It's only 5 minutes work

No I won't. Those 5 minutes could be used for revision throughout the next 2 weeks.