carsol

im trying to setup 3 screen projection with TH2GO digital edition, but the fps is around 10... i took a look into the forum for similar issues but i dont found the answer....

here is the simple patch im using. basically a qtmovie with adapt and unique going to a videoplane...

Dell Core2duo (2Ghz) // 2gb RAM // nVidia Quadro FX350M 512Mb

video file quicktime // 3072x768 // photo jpeg 80%

i try with uyvy and other things but nothing seems to work..

seems like too much resolution 3072x768 for qt.movie? 

because even in a small window i get poor performance, the same like in fullscreen mode..

the video files are around 400mb of size...

maybe i need edit the video files and split them in 3 1024x768 slices? no the best solution for me...

please somebody can point me in the right direction?

hi all,
im trying to setup 3 screen projection with TH2GO digital edition, but the fps is around 10... i took a look into the forum for similar issues but i dont found the answer....

Dell Core2duo (2Ghz) // 2gb RAM // nVidia Quadro FX350M 512Mb
win xp sp3, max 5.0.5
video file quicktime // 3072x768 // photo jpeg 80%

seems like too much resolution 3072x768 for qt.movie? 
because even in a small window i get poor performance, the same like in fullscreen mode..
the video files are around 400mb of size...
maybe i need edit the video files and split them in 3 1024x768 slices? no the best solution for me...

th2go-performance

maybe you could try to loadram the movie to check if the harddisk is the bottleneck..

3072 pixels wide is definetely a lot.
To split is the answer.
Try this out:
JS

i found that using uyvy or loadram dosent give better performance, but slicing the video seems the way, but i still without get a good performance... but now im in 20FPS with a 2400x600 video...

JS, i dont understand why you use three qt.movie instances, so i did one qt.movie sliced with 3 jit.submatrix (better performance than jit.scissors) of 800x600, going to a gl.texture -> gl.videplane. i post the patch.

disabling doublebuffer give me screen flickering...

one think that i dont understand is that the dest_dim attribute in texture and videoplane is 2400 600 instead of 800 600... i try to change it, but isnt possible, is this coming from gl.render?

and another question is if i can slice the video in GL.. im trying to find how but no luck... i dont find the way of use texture coordinates,a slab or something like this... :-? and dont find any example...

You'll most likely get better performance by doing the splitting on the GPU. One option for doing this is the td.resample.jxs shader. See below for details. The shader could also be written for absolute pixel dimensions instead of the normalized values.

You'll most likely get better performance by doing the splitting on the GPU.  One option for doing this is the td.resample.jxs shader.  See below for details.  The shader could also be written for absolute pixel dimensions instead of the normalized values.

i test your patch using resample slab and give me 15fps... :-(

i test both patches in a faster machine (QuadCore, 4gb ram and ati radeon 4870 1gb) and give me the same results.

i have updated grpah drivers and test the cards with gpu caps utility to check the performance and the results are good...

so i dont know what to do.... any new idea?

maybe the only way is like JS said, cut the videos out of jitter and use three diferent qt.movies? but i think theres people out there doing what im trying to do and having good performance... ??

Hi Andrew,,
i test your patch using resample slab and give me 15fps... :-(
using submatrix i get 20fps.. :-?
i test both patches in a faster machine (QuadCore, 4gb ram and ati radeon 4870 1gb) and give me the same results.

my experience is that the quadro series is absolutely inferior for 

jitter work. you're going to want to use a geForce instead, or an ATI 

radeon. it doesn't surprise me that you're getting such crappy 

framerates. the irony is that it's difficult to get decent 

'workstation' computers without these CAD cards, which just don't work 

a massive 8 core machine i used for an install in january limped along 

with a quadro in it. i put a geforce in it and got a ~20fps fps boost.

i am not a graphics tech, but my understanding is this: the gaming 

cards are designed not so much to get it right as to get it fast. the 

CAD cards want to make sure every vertex is in the right place, and if 

jitter is better suited to the 'get it fast' cards- the gaming line.

i know this sounds... wrong... but it's been my experience over the 

On Nov 26, 2008, at 5:58 PM, oscar wrote:

> im trying to setup 3 screen projection with TH2GO digital edition, 

> but the fps is around 10... i took a look into the forum for similar 

> here is the simple patch im using. basically a qtmovie with adapt 

> Dell Core2duo (2Ghz) // 2gb RAM // nVidia Quadro FX350M 512Mb

> video file quicktime // 3072x768 // photo jpeg 80%

> i try with uyvy and other things but nothing seems to work..

> seems like too much resolution 3072x768 for qt.movie?

> because even in a small window i get poor performance, the same like 

> the video files are around 400mb of size...

> maybe i need edit the video files and split them in 3 1024x768 

> please somebody can point me in the right direction?

my experience is that the quadro series is absolutely inferior for  
jitter work.  you're going to want to use a geForce instead, or an ATI  
radeon.   it doesn't surprise me that you're getting such crappy  
framerates.  the irony is that it's difficult to get decent  
'workstation' computers without these CAD cards, which just don't work  
well for jitter.

a massive 8 core machine i used for an install in january limped along  
with a quadro in it.  i put a geforce in it and got a ~20fps fps boost.

i am not a graphics tech, but my understanding is this:  the gaming  
cards are designed not so much to get it right as to get it fast.  the  
CAD cards want to make sure every vertex is in the right place, and if  
framerate suffers, so be it.

i know this sounds... wrong... but it's been my experience over the  
last year.

>
> hi all,
> im trying to setup 3 screen projection with TH2GO digital edition,  
> but the fps is around 10... i took a look into the forum for similar  
> issues but i dont found the answer....
>
> here is the simple patch im using. basically a qtmovie with adapt  
> and unique going to a videoplane...
>
> system configuration is::
>
> Dell Core2duo (2Ghz) // 2gb RAM // nVidia Quadro FX350M 512Mb
> win xp sp3, max 5.0.5
> video file quicktime // 3072x768 // photo jpeg 80%
>
> i try with uyvy and other things but nothing seems to work..
>
> seems like too much resolution 3072x768 for qt.movie?
> because even in a small window i get poor performance, the same like  
> in fullscreen mode..
> the video files are around 400mb of size...
> maybe i need edit the video files and split them in 3 1024x768  
> slices? no the best solution for me...
>
> please somebody can point me in the right direction?
>
> thanks in advance.
> o
>
>
>


Yeah, what Josh said is what has been explained to me as well. Workstation = CAD/architectural/Medical/Engineering = accurate or people die...

Gaming = fast and dirty which is how we all like it here.. just ask Phyllis Tushman...

Yeah, what Josh said is what has been explained to me as well. Workstation = CAD/architectural/Medical/Engineering = accurate or people die... 

Gaming = fast and dirty which is how we all like it here.. just ask Phyllis Tushman...


for a similar task I convert my video files into something strange with 

patch 1 (you will see what it does). Then I play the resulting file 

with patch 2. let me know if this gives you some better results. works 

> i test your patch using resample slab and give me 15fps... :-(

> i test both patches in a faster machine (QuadCore, 4gb ram and ati radeon 4870 1gb) and give me the same results.

> i have updated grpah drivers and test the cards with gpu caps utility to check the performance and the results are good...

> so i dont know what to do.... any new idea?

> maybe the only way is like JS said, cut the videos out of jitter and use three diferent qt.movies? but i think theres people out there doing what im trying to do and having good performance... ??

Hi Oscar,
for a similar task I convert my video files into something strange with 
  patch 1 (you will see what it does). Then I play the resulting file 
with patch 2. let me know if this gives you some better results. works 
very fine for me.

oscar schrieb:
> Hi Andrew,,
> i test your patch using resample slab and give me 15fps... :-(
> using submatrix i get 20fps.. :-?
> i test both patches in a faster machine (QuadCore, 4gb ram and ati radeon 4870 1gb) and give me the same results.
>
> i have updated grpah drivers and test the cards with gpu caps utility to check the performance and the results are good...
>
> so i dont know what to do.... any new idea?
>
> maybe the only way is like JS said, cut the videos out of jitter and use three diferent qt.movies? but i think theres people out there doing what im trying to do and having good performance... ??
>
> thank you very much for your help.
>
> bests,
> o
>
>
>


let me share some fustration... :) i test the patch in these computers:

A: Core2Duo 2Ghz / 2Gb RAM / Quadro FX350M

B: QuadCore 3Ghz / 4Gb RAM / ATI Radeon 4870 1Gb!

and TH2GO digital ed. with 3 screens. total resolution 2400x600 video file in QT format codec photojpeg size > 144Kb

results of the patch posted by Andrew: 16FPS in both machines

just playing the video and slicing with resample slab

results slicing with jit.submatrix: 20FPS in both machines

why im getting the same performance betwen those diferent machines? being computer B 2,3,4,6 or more times faster?

why i can play this video with KMplayer or BSPlayer at full framerate? and in jitter im getting poor performance?

i think 2400x600 isnt too much... which are the movie resolution limits in jitter? i need to tweak somegthing in jitter configuration?

this afternoon i will give a try to the patch posted by John...lets see...

ps: greetings to the robots!! i think we meet in lemur year ago.. we been there dancing with the bots, using the wireless miditron and PD the time you did the residency... at the end i made the step to max :)

A:        Core2Duo 2Ghz / 2Gb RAM / Quadro FX350M
           win xp sp3, max 5.0.5 / QT 7.5.5

B:        QuadCore 3Ghz / 4Gb RAM / ATI Radeon 4870 1Gb!
           xp 64 pro, sp2, max 5.0.5 / QT 7.5.5

results of the patch posted by Andrew: 16FPS in both machines
just playing the video and slicing with resample slab

and the big question,,
why i can play this video with KMplayer or BSPlayer at full framerate? and in jitter im getting poor performance?

i think 2400x600 isnt too much... which are the movie resolution limits in jitter? i need to tweak somegthing in jitter configuration? 

ps: greetings to the robots!! i think we meet in lemur year ago.. we been there dancing with the bots, using the wireless miditron and PD the time you did the residency... at the end i made the step to max :)


of course i remember you, oscar. i'll never forget your dancer making 

the frets on the guitar bot rise. amazing tableau.

> let me share some fustration... :) i test the patch in these 

> A: Core2Duo 2Ghz / 2Gb RAM / Quadro FX350M

> B: QuadCore 3Ghz / 4Gb RAM / ATI Radeon 4870 1Gb!

> and TH2GO digital ed. with 3 screens. total resolution 2400x600 

> video file in QT format codec photojpeg size > 144Kb

> results of the patch posted by Andrew: 16FPS in both machines

> just playing the video and slicing with resample slab

> results slicing with jit.submatrix: 20FPS in both machines

> why im getting the same performance betwen those diferent machines? 

> being computer B 2,3,4,6 or more times faster?

> why i can play this video with KMplayer or BSPlayer at full 

> framerate? and in jitter im getting poor performance?

> i think 2400x600 isnt too much... which are the movie resolution 

> limits in jitter? i need to tweak somegthing in jitter configuration?

> this afternoon i will give a try to the patch posted by John...lets 

> ps: greetings to the robots!! i think we meet in lemur year ago.. we 

> been there dancing with the bots, using the wireless miditron and PD 

> the time you did the residency... at the end i made the step to max :)

of course i remember you, oscar.  i'll never forget your dancer making  
the frets on the guitar bot rise.  amazing tableau.

>
> eeii josh...
>
> let me share some fustration... :) i test the patch in these  
> computers:
>
> A:        Core2Duo 2Ghz / 2Gb RAM / Quadro FX350M
>           win xp sp3, max 5.0.5 / QT 7.5.5
>
> B:        QuadCore 3Ghz / 4Gb RAM / ATI Radeon 4870 1Gb!
>           xp 64 pro, sp2, max 5.0.5 / QT 7.5.5
>
> and TH2GO digital ed. with 3 screens. total resolution 2400x600  
> video file in QT format codec photojpeg size > 144Kb
>
> results of the patch posted by Andrew: 16FPS in both machines
> just playing the video and slicing with resample slab
>
> results slicing with jit.submatrix: 20FPS in both machines
>
> why im getting the same performance betwen those diferent machines?  
> being computer B 2,3,4,6 or more times faster?
>
> and the big question,,
> why i can play this video with KMplayer or BSPlayer at full  
> framerate? and in jitter im getting poor performance?
>
> i think 2400x600 isnt too much... which are the movie resolution  
> limits in jitter? i need to tweak somegthing in jitter configuration?
>
> this afternoon i will give a try to the patch posted by John...lets  
> see...
>
> bests!
> o
>
> ps: greetings to the robots!! i think we meet in lemur year ago.. we  
> been there dancing with the bots, using the wireless miditron and PD  
> the time you did the residency... at the end i made the step to max :)


What codec did you use to encoder your movie? I found that this had a huge impact on performance.

I am doing something very similar, except that I am reading a 3500 x 437 movie and splitting it into two outputs, each connected to a TripleHead2Go. (So I'm driving 6 monitors in total.)

Mac OS X doesn't seem to allow for monitor spanning (ie treat the two separate outputs as a single monitor), so I ended up writing up a simple patch much like yours.

Initially performance on a quad-core Mac Pro was terrible, about 5fps. (In Jitter - it played back fine in QuickTime Player.) The movie was 3500 x 437 encoded using H.264, and was about 40MB in size. I re-encoded the movie at the same resolution, using QuickTime PhotoJPEG at 80% quality. The result was about 400MB in size.

The PhotoJPEG movie played back at 30fps - on my lightweight laptop, Core 2 Duo 1.8Ghz and Intel 965 integrated graphics! On the Mac Pro, as expected, it just cruised.

I believe that H.264 decoding is particularly hampered in Jitter, probably because the playback mechanism involves repeated seeks to position. PhotoJPEG is much better at allowing random seeks, hence dramatically improved performance!

thanks, thanks, thanks very much for your guideline!

ir works perfect using QT Animation codec with UYVY, 

but a 10 seconds and 200Mb video becomes 600Mb, so i need to experiment with my video partner diferent QT codecs and see if we find a balance between framerate and file size, because maybe we need to play 20 minutes video and with those numbers maybe we speak about 25Gb video file in QT animation.... seems like too much...

thanks again i will inform you if i find the middle way using diferent QT codecs.

Hi John!
thanks, thanks, thanks very much for your guideline!
ir works perfect using QT Animation codec with UYVY, 
but a 10 seconds and 200Mb video becomes 600Mb, so i need to experiment with my video partner diferent QT codecs and see if we find a balance between framerate and file size, because maybe we need to play 20 minutes video and with those numbers maybe we speak about 25Gb video file in QT animation.... seems like too much...

yes i was using QT photojpeg as you, i test using diferent ji.windows and give me same performance, the best i get is using the patches posted by John give them a try...

See if in your encoding program there is an option to encode H.264, but making every frame a keyframe.

That should be smaller than using Animation codec.

great that this works for you! I did some experiments on different 

codecs already. The only useful codecs I know of that hold an alpha 

channel is animation and png. png is much smaller than animation but I 

had a really hard time with unexpected crashes and bad performance 

using png. Do you experience problems with files of 25GB of size? If so 

you might want to split the big animation movie and play one after the 

Yes, please let me know what you find out! Even some bad experience is 

> thanks, thanks, thanks very much for your guideline!

> ir works perfect using QT Animation codec with UYVY, 

> but a 10 seconds and 200Mb video becomes 600Mb, so i need to experiment with my video partner diferent QT codecs and see if we find a balance between framerate and file size, because maybe we need to play 20 minutes video and with those numbers maybe we speak about 25Gb video file in QT animation.... seems like too much...

> thanks again i will inform you if i find the middle way using diferent QT codecs.

Hi Oscar,
great that this works for you! I did some experiments on different 
codecs already. The only useful codecs I know of that hold an alpha 
channel is animation and png. png is much smaller than animation but I 
had a really  hard time with unexpected crashes and bad performance 
using png. Do you experience problems with files of 25GB of size? If so 
you might want to split the big animation movie and play one after the 
other?

Yes, please let me know what you find out! Even some bad experience is 
useful.

oscar schrieb:
> Hi John!
> thanks, thanks, thanks very much for your guideline!
> ir works perfect using QT Animation codec with UYVY, 
> but a 10 seconds and 200Mb video becomes 600Mb, so i need to experiment with my video partner diferent QT codecs and see if we find a balance between framerate and file size, because maybe we need to play 20 minutes video and with those numbers maybe we speak about 25Gb video file in QT animation.... seems like too much...
>
> thanks again i will inform you if i find the middle way using diferent QT codecs.
>
> bests,
> o
>
>
>


th2go performance