smooth jitter playback / max in vista on MBP
Nov 13, 2007 at 11:30pm
smooth jitter playback / max in vista on MBP
When I started using Jitter I encountered a serious playback ‘hiccup’ or ‘stutter’, when playing even 1- 640×480 photojpeg (med quality) movie.
- I tested GPU & CPU based example patches.
NO MOVIES will play smoothly, PERIOD.
Even when mixing 5 video streams on GPU, the stutter happens at similar intervals, in each movie.
I’ve tried every optimization, read every tutorial, downloaded every sample I could find, read every thread on playback issues –
– OR, of course – is it this machine?
- I optimized the OS – cut every CPU task I could (SpotLight, Dashboard Network, OS window shadows, etc etc -)
still the same jump in playback every 3 – 4 seconds a stutter.
I then tried the example patches on 3 diferent G5s (dual 2.0 & quad core & intel G5) -all with same results!!!
Dont mean to be a wise ass here, but – Is this where the name Jitter comes from?
The stutter is very visible, in my opinion unacceptable for producing DVDs or exhibition – and I just cant believe other artists would just live with this!?
—- Support —-
so then I turned to Cycling74 – and their response was to give a detailed account /specs etc. – I did & took 2 hours explaining/writing, etc.
the got a simple, deadend, frustrating, response from Andrew B:
“Smooth playback is one of the things that we will be
Does this mean when it was released ( for $$$) it wasnt even playing 1 movie “smoothly”?! – it wasnt explored prior to selling the software?
I’ve read many threads on low-priority queue – threading etc –
I was wondering if anyone has tested or regularly runs Max/Jitter in Windows Vista on a MBPro – and if the video playback is better? (different drivers, and more control over video card)
As I’ve just invested over 4000$ buying this machine FOR live video + 2 weeks developing, I jast cant afford to spend $ and time buying Vista & installing etc, just to realize theres no improvement – the stutter is still there…
thanks in advance for any help in this matter – I have hit a brick wall and am running out of time for product on a project!
Nov 13, 2007 at 11:53pm
- or, has anyone compared
Nov 14, 2007 at 6:23am
i reeeaaaly don’t think xp or vista will make much of a difference. there are inherent problems with jitter’s quicktime engine when it comes to playing back hd movies smoothly, as implied by andrew’s response.
however, playing back 1 640×480 movie without stutter should not be a problem.
try the following patch, which has several optimizations for qt playback, and see if you get better results with some 640 x 480 photo-jpeg clips.
#P window setfont “Sans Serif” 9.;
Nov 14, 2007 at 10:57am
thanks for your response -
>don’t think xp or vista will make much of a difference.
it certainly was a last resort idea – I read a thread about GL problems w GeForce 8600M GT on the MacBook Pro 2.4 17″ – something about ‘underclokcing’ – there was also mention that the GeForce in Windows has a control panel with many settings – I was thinking I may be able to dig around there /
I’m sure there a few users out there with same machine & set up that I have – Is anyone else experiencing this problem?
Nov 14, 2007 at 11:24am
in the meantime, the most effective playback I got is with NTSC encoded
Windows Machines are not better, try bootcamp if you like.
Nov 14, 2007 at 11:28am
I’m not sure that “as soon as” was part of the deal, but we are
Am 14.11.2007 um 12:24 schrieb John Dekron:
> I promised to buy some beers for Jeremy and Joshua they promised to
Nov 16, 2007 at 11:12pm
thanks for the replies – and clarifying, i spent a lot of time digging around and would’ve apprecieted a detailed response right off the bat – especially since this was a “known issue”!
>but we are intending to look closely at this issue at some point
at some point?
Is there a get this addresses asap?
I’ve now spoken/emailed with others, that are having the same problem, and they’re quite disappointed with the lack of interest/attention by Cycling74 on this matter.
In my opinion, this is an absolute priority issue.
my work with max/jitter and consequently all my live video production work has stopped dead in its tracks because of this.
Nov 16, 2007 at 11:13pm
I’ll buy a months work and drop ship to the office in SF if you get this fixed!!!!!!
Nov 16, 2007 at 11:18pm
Nov 17, 2007 at 12:06am
> This problem makes ALL (!!!) output form Jitter unusable.
er, that’s a bit dramatic.
is your movie exported with a very high data rate perhaps?
Nov 17, 2007 at 12:25am
In actual fact, this particular issue is of great concern for those of us in Cycling ’74 that work on the Jitter project, and we sincerely hope to be able to fix it soon. We have had numerous internal discussions about possible causes or solutions. Nevertheless, at this moment all of our development resources as a company are devoted to finishing Max 5 as soon as we can. Cycling ’74 is a small software company with a very small team of full-time engineers, and sometimes we need to focus our efforts on finishing one project before we can address issues with another one.
Please know that we take everyone’s bug reports and messages to the forum very seriously, even when you don’t hear us chiming in. I promise you that this issue is being researched and hopefully resolved for a future version of Jitter.
Thanks for your patience.
Nov 17, 2007 at 1:25am
> gather that you are under the impression that we are ignoring
- well, from the initial response thru c74 support weeks ago, I DID get the impression that it was not priority. The reposne to my detailed email/report after being told to send that by phone support – was minimal, general, and inconclusive… which led me to nearly a week of testing, digging around etc.
as many others have also experienced.
maybe a general posting about this, officially!!!, so others dont waste the time as well is in order?
Nov 17, 2007 at 1:27am
actually – to clarify further – is this problem related to specific machines/video cards?
some people report smooth playback/”no problems on my machine” -(without posted machine/system specs etc)
Nov 17, 2007 at 1:34am
> er, that’s a bit dramatic.
What machine are you using? / version of Max / video card / etc – I’d like to know, I’d go buy your setup tomorrow if I could confirm this problem is machine specific – (prob with my MBP)
I’ve tested on 5 differnt machines (ppc g5′s, intel g5, powerbook & macbook pro)
> with the patch i gave to you, i can playback a 640×480 movie
Nov 17, 2007 at 2:06am
Well, Id just like to say I am currently using Jitter to drive 4
Id say this is pretty decent.
What ive found HAS to be done to get things working well when dealing
jit.qt.movies with @unique 1
jit.gl.slab @file cc.uyvy2rgba.jxs for UYVY 2 rgba conversion
On Nov 16, 2007, at 7:06 PM, Robert Ramirez wrote:
Nov 17, 2007 at 2:57am
> Framerate does judder a bit
> barely noticeable unless you look for it
I’m workin on 2 DVD projects recording live video performances, so the masters containing this glitch is unacceptable by my standards :) ..for me – it ruins camera work – and overal impact of the piece.
– 1 720×480 photojpeg video stream on my old titanium 500mhz using Max and NATO plays back smoother than my brand new MBP!!
re “faith” – :)
Nov 17, 2007 at 3:07am
I just made a standalone on a non-intel G5 – with 5 – 640 480 softVNS streams mixed to one output / ram loaded the movies – and opened that on my MBP 2.4 17″ – video clips playback perfectly.
hmmm? seems like its not this machine, its Jitter!?
anyone out there running this exact setup:
* all the obvious CPU optimizations have been tried / dashboard/sotlight / shadows all killed ..etc
I realize this may just be a Jitter problem, but I cant rest until I know I’ve tried everything… :)
Nov 17, 2007 at 3:21am
I dont think you will get much better from my experience, ive tried
On Nov 16, 2007, at 10:07 PM, james wrote:
Nov 17, 2007 at 4:19am
>I look forward to Jit 2.0 eagerly.
Quartz Composer playback is perfect / but building my live app/patches – its just not ready for that :)
I wonder.. whats the different between how softVNS plays back/controls quicktime – VS – Jitter?
Nov 17, 2007 at 5:26am
I have done some serious looking into this. Of course our needs will
On Nov 16, 2007, at 11:19 PM, james wrote:
> Quartz Composer playback is perfect / but building my live app/
Nov 17, 2007 at 10:43am
On Nov 17, 2007 2:57 AM, james
Have you considered using offline rendering? I get the impression you’re not
It might require some work to make your patches compatible though.
Nov 17, 2007 at 12:31pm
> Performance Options:
mmm interesting, i’ve never tried this before..this one i can set with the message:
Nov 18, 2007 at 10:39am
we are also looking forward to the day this issue is no more, it has
On Nov 17, 2007, at 3:06 AM, vade wrote:
> Well, Id just like to say I am currently using Jitter to drive 4
Nov 22, 2007 at 1:02am
nice tips on optimization… the @unique thing defineatly helps immediately…
Vade can you go into more details on the UYVY to OpenGl thing. I have a patch I’ve been working on… it uses incoming video data from a firewire camera this gets some slab processing (your v001.film-technicolor3. so nice!! and the kaleido.jxs) and goes to a gl.mesh for further processing. The problem is with any video >320×240 all I can get is 20fps. My cpu is around 40% and gpu is 13%… 30fps @720×480 would be idea. Anywho any tips would greatly be appreciated.
Nov 22, 2007 at 1:47am
Well, jit.qt.grab can do @colormode uyvy, so the patch might be
1 qmetro 33
and you can then send ‘texture mytexturename’ to the mesh.
# 3 converts UYVY to RGBA on the GPU with the shader. @dimscale makes
On Nov 21, 2007, at 8:02 PM, Tyler Nitsch wrote:
Nov 22, 2007 at 5:46am
Just for the ‘record’ , here is what I tried:
I am able to do ‘live’ capture from Quicktime ‘new movie recording’ @
I have not been able to do HDV live capture from inside Jitter…
JS aka Mixar
Nov 27, 2007 at 6:07pm
I’m having a simular problem.
The thing I try do is run a video in Jitter 1.2 using Max 4.5
I have a PC AMD 2.0Ghz 2 Gig RAM
Is it possible to cut the file in for example 5 smaler files (so my computer doesn’t have to play the full 13 Gig file) ???
Please help me… the expo opens on friday and it has to run smooth.
THANK YOU !
Feb 28, 2008 at 9:42pm
Here’s a patch that decodes a movie’s duration into frame-sized chunks of “time” and uses counter to advance the movie time. This does seem to make playback smoother (not as nice as in QT Player, but better), but is not without its inconveniences (sound, for instance, plays horribly with this method). I’m curious if anyone thinks this does play better, or, maybe I’m just imagining things. I also don’t know if its long term stability.
#P window setfont “Sans Serif” 9.;
Feb 29, 2008 at 3:26am
I tried the “frame driving” method as well, but its pretty jumpy for me (on my dual 2.0 G5 / 256vram)…my macbook pro is at apple for repairs, i’ll check this out when I get it back.
I found the best playback is to make a standalone / qmetro 16 / jit.qball – ramloaded movies – ALL updating UI elements eliminated, include the jitter FPS object.
I can play 5 SD video streams 30fps, but occasionally / every few seconds the jitter hiccup is still there.
really hope Cycling74 can address this soon!
You must be logged in to reply to this topic.