Jerky swf playback

Hello everyone,
I'm afraid I need help again. The website I made is complete but there is one issue I cant fix. My image gallery scroller play back is jerky, it seems like a interlacing problem. Please take a look here at the front page
www.basilandchives.com
This is a swf file with mouse interaction (mouse left scroll left, mouse right scroll right) 30fps, they are jpegs at 300x300 pixels. Mainly the upper part of the pictures are affected. I've looked everywhere in Flash CS4 and cant find the option setting for interlace or progressive, or does it even exist?
I've tried setting the Jpeg setting as progressive in Publish setting but the problem still persist...
I've tried viewing with several computers so far and they all have the same issue.
Thank you,

so, you're using timeline animation.
there only a few things you can do to improve that animation:
1. lengthen your imgBar timeline and
2. enable the cacheAsBitmap property of imgBar.
you may want to increase your fps to compensate for the increased timeline length of imgBar.
if those fail, you'll need to redo your project using actionscript to scroll imgBar.

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Quicktime 7.5 causes jerky iMovie playback

When - oh when will Apple fix the "Jerky iMovie Playback Problem" caused by Quicktime 7.5?
I would love to see a response by somebody from the Apple Corporation, or are they
too busy with the iPhone and iPod?
Hank

Hiya,
and hello from London. Just a thought: you could post Apple feedback of the problems you got:
http://www.apple.com/quicktime/feedback/
It might be an idea to put more technical feedback in there (e.g. open applications/utilities/console and see what happens, when QT IS actually jittery.:~/
Also compare that with what's happening in activity monitor (e.g. are the processors running unusually high, compared to other QT use? or is the memory low? or is harddrive space low?).
If this is a bug that needs fixing, by giving the technical data to apple, this can be used to issue a fix.

Jerky import & playback with 10.3.9 and QT 7.0.2

Posting new topic as follow-on from prior topic. Sorry if making a hash of this, but pretty new to Discussions, Apple and iMovie!
Have tried fixes offered by David Babsky (many thx!!), but no impact. David pointed me to discussions on "Jerky" playback and I see mention of similar issue I have.
One solution seems to be to reinstall QT 6.5.2 (how do I get to that, please?? and do I need to delete QT 7.0.2 components etc?), which was suggested by John Cogdell, or possibly upgrade to Tiger and leave QT 7.0.2 alone. Should I try the QT 6.5.2 reinstall option first, then Tiger, if that doesn't fix the problem?
Steve Summers also suggested changing anything in QT Preferences - is this the place to start first?

One solution seems to be to reinstall QT 6.5.2 (how do I get to that, please??
You will find the download and instructions on http://www.apple.com/support/downloads/quicktime701reinstallerforquicktime702.ht ml

Jerky movie playback

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I've been having this same problem. On a 2.0 Ghz Macbook with 2 GM memory iTunes can no longer play rented movies or TV shows. (This exact system used to be able to play full screen 720p HD with no problem.) Movies will play fine for a few seconds or minutes then start becoming jerky, flashing between black and the video, and getting out of sync with the audio. Makes things unwatchable. Quitting iTunes and restarting it sometimes fixes the problem for a few moments but then it returns.

Poor, jerky preview playback on dual monitors

Hi,
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cheers, Jamie
Windows XP (32bit)
AMD Athlon 64x2 4600
3.2gb ram
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Ok...
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OS WinXP SP3 (En)
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AMD64x2 4600
4gb DDR2 ram
ATI Radeon 4600 HD (driver ver. 8.702.0.0)
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Nvidia nForce 430/410 SATA (driver ver: 5.10.2600.650)
System drive: 300gb sata (201gb free)
Video drive: 1TB sata (175gb free)
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Thank you, to both Jim and Harm for a great series of technical posts on this thread. Really fun to read and learn from!
A study on drive performance I did yesterday on my RAID 0 configuration may add a bit of thought to our discussion. I evaluated disk access times, and min/max read times. Plus did reading up about RAID controller cards.
First interesting discovery (at least for me) . . . as your video files get placed deeper on your drive, the access times increase significantly and data rates slow down. Reports I've read explain this, and it's the simple physics of a platter spinning at a constant RPM. The read/write head flys over the outer tracks of data much faster than the tracks near the center of the platter. Sure enough, my read performance graph looks like a dying patient as the test approaches the inner tracks. Not disastrous, but a good 30% drop in speed.
So first conclusion is that if the drive starts getting close to full, slowdowns can be significant. A separate plot of access time over position showed that near the end of the drive, access times also increased. Hard drives start by writing data to the outer edges of the platter, where the head flies fastest and data speeds are at their best. Data gets placed closer to the middle as you fill up the drive.
Next interesting discovery -- most PC people, like me, use motherboard-based RAID controllers. Not so good I found out. Those are all software-based, and use a fair amount of the CPU -- my CPU overhead was around 15%.
With my RAID drive test, I also observed substantial speed "pumping", up and down, which comes from the nature of relying on the motherboard CPU which can't stay focused on just drive access. My worst-case low points in the pumping got down to about 70 MB/s.
From the reasearch I've done, a PCI-e hardware-based RAID controller will eliminate the pumping and give you around a 20% to 30% speed increase with fairly steady read speeds. Since my average read rate was about 110 MB/s, I could see that go upwards to 140 MB/s with a hardware-based RAID card, and hold fairly steady performance speeds. Of course, if video files are fragmented, that'll slow things down somewhat.
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So it would seem that RAID 0 gives me quite a bit of performance cushion, even with some of the other system overhead that Harm mentions.
That might change if I went to the professional formats, working with video at 4:2:2, and began moving to less compressed formats.

2014 Macbook Pro - Premiere - R3D jerky lag playback

Hi everyone,
I keep having problems with jerky playback in the source monitor as well as the timeline about 5 minutes after opening my project file. My system specs are as follows:
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Things I have tried:
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what is the best configuration for this? Thanks all!

"It currently has 4GB and it very quickly runs out of memory meaning playback of goes very slowly when previewing complex files in the timeline."
"In this case yes, I can most certainly see a performance increase as your machine is still not too old and a RAM increase will help it for sure I just can't tell you by how much.
I own the same machine as yours (except for mine having 2.9ghz and i7, and 8GB of ram) so I think it's safe to say for me that the RAM increase will help you for sure."
That statement of mine answers your question you just asked

Jerky F4V playback in IE -- Firefox seems OK.

Seen multiple threads for “jerky playback in flash”, but nothing posted seems to help.
I’ve tried in the Flash forum, but No Joy.
6 different videos – all with same results all using Adobe presets.
Using the F4v/FLV .5 Mbs export preset from PP to media encoder
All F4V/FLV exports show “jerky” playback in flash/IE, but fine in FireFox (so sounds like a Flash player or IE issue –right, but this is one of the largest combos on the net, so I figure someone has gotten this to work).
Audio is OK.
Same behavior on 2 different systems (Win7 x64 with lots of RAM and good CPU)
Systems all have latest updates, etc, etc. CPU/memory is low usage.
Hardware and systems are high-end and well-tuned.
Using VBR 1pass and CBR target in the 0.50 Mbs range.
Have used a variety of export presets in the 0.4 to 1.5 Mbs – all with same results. So my test set exceeds 20 exports – all with identical behavior.
Internet connection is 20Mbs to desktop.
Locally-hosted F4Vs play OK.
Hosted MOVs are downloaded and play very well.
Same behavior on 2 separate hosted ISPs for all videos. Non-dedicated flash servers.
Uninstalled/reinstalled Flash. Hardware acceleration on/off, AVP on/off, etc.
Any suggestions?
If folks are having success with flash, can you provide export settings in the 0.5 to 1.x Mbs range that work for you?
Since I have seen lots of “jerky” playback posts associated with Flash, is this some sort of “known issue”?
PP CS5, latest AME, latest Flash 10.x
Thanks, H

I have updated this post with more detailed information to hopefully get some help.
I have read multiple posts/threads on “jerky playback in flash”, but nothing posted seems to help my situation. I have tried in the Flash and PP forums, but to date no responses.
6 different videos – all Encoded with AME and produce the same results all using the Adobe F4V (h.264 Flash) presets from PP.
Started with the F4V/Web presets (same as source at 29.97), and then adjusted the output size to reduce Mbps until I got something to work. Tried all settings from about 1.5Mbps down to about 0.4 Mbps, but all showed the same result.
All AME encodes show “jerky” playback in flash/IE, but smooth in FireFox. Audio is OK
The video plays smoothly for a second, then shudders for about 3 frames, then smooth, then shudders, etc.
Local playback on AMP looks fine, this bypasses the browser completely, so not really a valid test. I have attached a MediaInfo for a sample encode below. The HTTP code for playback is generated by DW and very simple, so I doubt it is that.
Same behavior on 2 different systems (Win7 x64). Systems have latest updates, etc, etc. Hardware and systems are high-end and well-tuned. CPU never exceeds 5% and memory never above 10%.
Have used a variety of export presets in the 0.4 to 1.5 Mbps – all with same results. So my test set exceeds 20 exports – all with identical behavior.
Tried VBR 1pass and CBR.
Same behavior on 2 separate hosted ISPs and local playback. All with identical behavior, but local playback is less pronounced. Dedicated UNIX servers with high-speed connections, but not flash servers. Internet connection is 50+Mbps to desktop – but again, local playback also shows the shuttering behavior, just not as much.
It sounds like a Flash player or IE issue, but this is one of the largest combos on the net today, so I figure someone has gotten this to work using AME.
Uninstalled/reinstalled Flash. Hardware acceleration on/off, AVP on/off, etc.
Since I have seen so many “jerky” playback posts associated with Flash, is this some sort of “known issue”? I know that millions use h.264/Flash and IE daily, so I must be doing something wrong. I realize the difference between IE and Mozilla Flash, but I can’t reconcile what I am seeing to just IE. This is not a minor playback difference, but dramatic on 2 well-tuned systems.
PP CS5, latest AME, latest Flash 10.x, etc
Does anyone have examples of h.264 Flash output that hosts OK in the 512x288 to 786x432 range on IE? Can you provide link to output and settings that got you there.
Thanks, H
General
Complete name                    : T:\VIDEO_Project_Exports\F4V432\Gaskin.f4v
Format                           : MPEG-4
Format profile                   : Adobe Flash
Codec ID                         : f4v
File size                        : 23.5 MiB
Duration                         : 3mn 30s
Overall bit rate                 : 934 Kbps
Encoded date                     : UTC 2010-11-20 15:52:46
Tagged date                      : UTC 2010-11-20 15:52:46
©TIM                             : 00;00;00;00
©TSC                             : 30000
©TSZ                             : 1001
Video
ID                               : 1
Format                           : AVC
Format/Info                      : Advanced Video Codec
Format profile                   : [email protected]
Format settings, CABAC           : Yes
Format settings, ReFrames        : 3 frames
Codec ID                         : avc1
Codec ID/Info                    : Advanced Video Coding
Duration                         : 3mn 30s
Bit rate mode                    : Constant
Bit rate                         : 850 Kbps
Width                            : 768 pixels
Height                           : 432 pixels
Display aspect ratio             : 16:9
Frame rate mode                  : Constant
Frame rate                       : 29.970 fps
Standard                         : NTSC
Color space                      : YUV
Chroma subsampling               : 4:2:0
Bit depth                        : 8 bits
Scan type                        : Progressive
Bits/(Pixel*Frame)               : 0.085
Stream size                      : 22.0 MiB (94%)
Title                            : MainConcept
Language                         : English
Encoded date                     : UTC 2010-11-20 15:52:46
Tagged date                      : UTC 2010-11-20 15:52:46
Audio
ID                               : 2
Format                           : AAC
Format/Info                      : Advanced Audio Codec
Format version                   : Version 4
Format profile                   : LC
Codec ID                         : 40
Duration                         : 3mn 30s
Bit rate mode                    : Constant
Bit rate                         : 48.0 Kbps
Channel(s)                       : 2 channels
Channel positions                : Front: L R
Sampling rate                    : 22.05 KHz
Stream size                      : 1.21 MiB (5%)
Language                         : English
Encoded date                     : UTC 2010-11-20 15:52:46
Tagged date                      : UTC 2010-11-20 15:52:46
Preset
Output: 762x432, same as source fps, de-interlaced, AAC+ Version 2, 48kps, 44.1kHz, Stereo, CBR, Target 0.85Mbs
Source: Sequence, Gaskin_HDV, 1440x1080(1.333), 29.97fps, Upper, 0;03;19, 48000Hz, Stereo

Jerky movie playback, but smooth on camera

I have a Panasonic PV-GS250 I bought in USA and have a great movie on the camera - pretty smooth pans and zooms for a beginner, but when imported into iMovie HD, it plays back jerkily. I'm new at this, but friends don't have same problems - although they use Windows? Film is imported into Mac as NTSC (assume 'cos camera bought in USA), but iMovie should handle all of that no problem, so why the jerkiness? I have checked the Import Perferences and Playback preferences and get no difference on Standard, or Highest! Can anybody help - or do I need to switch to Windows???!

No, you don't need to switch to Windows.
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Remove or disable any non-Apple 'codecs' you may have, such as any DVD-burning video software associated with 'Roxio' or 'Toast'.
Check that, under System Prefs>Energy Saver, you haven't ticked the "Put hard disk to sleep" box, or set any other Prefs to make the computer go to sleep or run slowly (..under 'Optimisation', set it to 'Better Performance').
Also, try going back to the iMovie Discussions index, where this topic sits, and type JERKY into the Search box at top right ..you'll see a whole load of Discussions, and suggestions about how to improve things.
Also, go to Applications>Utilities>Disk Utilities, select the name of your hard disc, and click on 'Repair Permissions', then wait for a few minutes while your Mac makes sure that all relevant files are set to their appropriate 'permissions'.
A good way to separate your movie import/playback from everything else which your PB is doing, is to buy an external FireWire hard disc (minimum speed 5400rpm, or - better still - 7200rpm), plug it in, and use that for storing movie footage. Then if your PB has some internal 'housekeeping' to do (..indexing files, keeping track of things, writing and erasing temporary files..) it doesn't interrupt the movie playback, as it's using the internal disc for its own things, and just grabbing the footage off the external disc without its being interrupted.
Oh, by the way: Welcome to iMovie Discussions!
Oh, and other people may suggest which is the appropriate version of QuickTime to be using (..I can't remember which is best with 10.3.9..) as some later version(s) ..QT 7..? QT 7.0.2..? may give jerky playback, though I haven't noticed that myself..

DVD and SWF playback

My client wants to play DVD and swf animations
simultaneously.
Has anyone done this and if so, what performance issues can I
expect ????
Minimum spec, anything would be good.
Would be nice just to tell him NO !

At least, the minimum system requirement will have to be
raised to
accomodate simultanious playback, setting a short test demo
might be the
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Hello,
I have a problem with .swf animation playback in captivate 4. I created the .swf in flash with as3 on one frame. The animation is contained in a movieclip. I exported from flash and made sure the framerates between captivate and flash work. I import the animation to a slide and notice that the duration of the animation is .01 (could this be a red flag?). When previewing my captivate file the animation does not play it shows up static. I have my captivate file set up with continue buttons but I tried taking the button off the animation slide and it still shows up with the static what would be animation. Has anyone else encountered this? I'm really at a loss as to whats going on
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/Michael
Visit my Captivate blog with tips & tricks, tutorials and Widgets.

Jerky Quicktime Playback

Hey everyone, I am exporting a Quicktime with Animation Codec and Millions of Colors+
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How, exactly, are you playing the file in After Effects?
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> have tried exporting it both rendered and unrendered
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Stop SWF playback on DIV hide

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In your html you have a couple of problems that are very
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In this function:
function callFlashPlayPauseVideo() {
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When I'm using several buttons that do the same/nearly similar things, I favor approach B over A, as it keeps me to jsut one single function to deal with.

Swf playback controls not working correctly

Hello all -
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Jerky swf playback

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