Jerky Playback in PP CS5 Player (Mac)
Greetings: I have imported video (.mov file) from a Canon EOS 7D into Premiere Pro CS 5 (shot at full 1080 HD resolution) and notice that the playback inside Premiere is extremely jerky and skipping.
Here are some tests I ran to rule out what the issue might be:
If I view the video on the camera, it seems very smooth.
If I upload the same video to Vimeo.com, it also plays perfectly smooth.
If I export the video to H264 / MP4, it also plays perfectly fine opened in Quicktime 10 (113)
This tells me there is some other issue going on and that it's not actually a problem with my actual video. I would like to solve this issue as I can see no possible to way to edit the video if playback is like this.
I am hoping someone can shed some light on this. Thank you.
System Specs:
iMac 24" / 2.4 Ghz Core 2 Duo
4 GB Ram DDR 2
Mac OS X / 10.6.3
ATI Radeon HD2600 / 256 MB
>apparent that this may not be the best place to post for begginers
While there is often a certain amount of opinion in the answers here (most people do have a tendency to think what works for them will work for everyone) you will also be given answers from people who use the software in the real world... and that goes far beyond the "minimum" requirements and into real, productive work
You asked why you were having problems, and were told your computer is not "strong" enough to edit HD material... and you posted back that you didn't believe the answer
Now, you say that you've read that you need to convert your material to a less demanding format... so maybe you are beginning to understand that your computer is not going to directly edit your souce material in a successful way
I also don't see you mention the rest of your hardware... so do be aware that you need AT LEAST 2 hard drives for editing
I'm in the Win world, editing AVCHD, and have an Intel i7 with 12gig ram and 3 hard drives... and that is just about the REAL minimum for the type of file
Similar Messages
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MPEG-2 : Jerky playback of recorded TV shows using QuickTime
Hi
I am trying to use QuickTime to playback recorded TV shows on a new Intel Core Duo Mac Mini.
The MPEG files themselves have been captured using a Hauppauge WinTV card on a Windows machine - and on this machine (and every other Windows machine), the files play fine.
I have purchased the MPEG-2 QuickTime component for Mac OS X, but I have noticed that when I try to play the files on a Mac, playback seems to drop a frame or two every few seconds, resulting in jerky motion which becomes difficult to watch after a while!
I have tried playback on several macs - an iBook, iMac G5 and the Intel Mac Mini, at different resolutions, and all appear to suffer with the same problem. I am running QuickTime 7.0.4 - all Macs have sufficient RAM available, and using Activity Monitor it does not seem that the machines are overly loaded whilst playing.
Is there a to configure the MPEG-2 component to get around this problem? Or is there a limitation with the types of MPEG-2 file that the QuickTime component will play? Ideally, I do not want to have to transcode my TV recordings, just to get them to play properly on a Mac.
Thanks in advance for any advice.
JohnHi there - thanks for your reply.
It appears I may have mis-reported some information during my earlier post(sorry!). It appears that on the Intel Mac Mini, the clips will play fine in full-screen through QuickTime, but suffer quite badly when played back through FrontRow - as I mentioned earlier, the file jerks every second or so. (QT Playback on the other machines seems to vary in quality - but I am not as concerned about this at the moment - I just want to be able to view these videos in FrontRow!).
I ran the clip through the Fix Timestamps option in MPEG streamclip, but it found nothing to repair. When I show file info in MPEG streamclip, it reports:
Type: MPEG program stream
Duration: 1:04:28
Data Size: 2.11 GB
Bit Rate: 4.67 Mbps
Video Tracks
224 MPEG-2, 720 × 576, 16:9, 25 fps, 4.35 Mbps, upper field first
Audio Tracks:
192 MP2 stereo, 48 kHz, 256 kbps
Stream Files:
TestTVRecording.MPG (2.11 GB)
So it seems that the problem, at least on the Intel Mini, is limited to FrontRow.
Surely, though, Front Row is just using the same QuickTime playback mechanism as QuickTime Player itself?! What other processing could FrontRow be doing during playback that would have such an imact?
I am looking to use the Mac Mini as a HTPC - I have it hooked up to my TV and am hoping to use it to play recorded TV shows from my Windows box. I've only had the box a couple of days, and am quite surprised that a dual core intel machine is struggling so badly with a simple mpeg2 file that my old 1ghz windows laptop will quite happily play!!
I appreciate that FrontRow is in it's infancy, but even so, I wasn't expecting my new machine to be struggling like this!
Any further suggestions greatly appreciated.
John -
Jerky playback of movies, Im getting desperate now, help !!
I have recently purchased a Sanyo Xacti digital camera which records onto an SD card in MPEG 4 format, the camera came supplied with Quick time to view the movies on.
I installed it and everything worked fine. I looked at the option of going PRO with the software because of the editing and file conversion facilities it offered, the £19.99 fee seemed reasonable also, so I did, during this quick time upgraded the player to the current version 7.1 also, since doing this my movies do not play back properly, the quality is grainy on some parts and the footage is choppy and laggy. I am really annoyed now as I expected to gain some useful features, not loose the one thing this player was intended for!!
I have searched through the forums for any clues and tried do some suggestions, i.e. running in safe mode, uninstalling QuickTime and reinstalling off the CD that came with my camera and I have upgraded my graphics drivers as well.
The thing is I downloaded the free VLC media player and that plays fine, the same movies also play ok on my editing software that came with the camera.
I spent half an hour on hold to apples Technical help line then got cut off! nice service eh and its cost £20 for this pleasue with no way of getting a refund or any help on the matter!! so it seems?
Thanks for any help you can give
Regards
John
custom Intel 3Ghz, 1024m ddr Windows XP"Copy one of your clips to your internal (system) HD. Open & play it in the QuickTime player. Does it play ok?
Do you have more than 1 project, and if so is this happening in all projects or just this one?"
Hello again ~
I have done all the memory upgrades, external (new 1TB:Mac OS Extended (Journaled) / internal: Capacity: 233 GB Available 90GB) moving new project onto 1TB drive and making more room on the internal drive too. Skipping/jerky playback still occurs.
I copied a small section, placing in & out points on a few seconds of the project. I stopped at that point because I couldn't figure how to move to the internal HD. (My brain has been on overdrive and dropping memory rapidly ~ another support topic.) Please tell me how to move the clip to the internal drive.
I did play another completed project, that had no previous problem. It did skip when the player was over the titles/transitions.
I thought of copying the project and starting w/new titles & transitions to see if there was some corruption problem, until I played the 2nd project and had the same result. -
Jerky playback of video project
When I play the project, it is very jerky. I thought there might be too much going on w/ transitions, motion in the title, edge feather, altogether slowing things down. Then I thought maybe my hard drive was getting close to full and causing the choppiness. I moved 10GB and now have 70GB left on the 500GB Lacie external hard drive.
Do I need more room on the hard drive?
I added my Lacie drive to Spotlight privacy list.
I'm not using TimeMachine.
No other devices connected.
Thanks,
A /"Copy one of your clips to your internal (system) HD. Open & play it in the QuickTime player. Does it play ok?
Do you have more than 1 project, and if so is this happening in all projects or just this one?"
Hello again ~
I have done all the memory upgrades, external (new 1TB:Mac OS Extended (Journaled) / internal: Capacity: 233 GB Available 90GB) moving new project onto 1TB drive and making more room on the internal drive too. Skipping/jerky playback still occurs.
I copied a small section, placing in & out points on a few seconds of the project. I stopped at that point because I couldn't figure how to move to the internal HD. (My brain has been on overdrive and dropping memory rapidly ~ another support topic.) Please tell me how to move the clip to the internal drive.
I did play another completed project, that had no previous problem. It did skip when the player was over the titles/transitions.
I thought of copying the project and starting w/new titles & transitions to see if there was some corruption problem, until I played the 2nd project and had the same result. -
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, StereoI have updated this post to include a link to an output file and settings used to create it.
Please take a look.
http://www.hansard.org/video_gaskin.htm
all advice very welcome.
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 -
I get jerky playback of Hi Def mov files shot on my Canon 7D when playing them back through Bridge. The same movies play smoothly with no stuttering whatever on the same machine through Nero or any other player I have installed. According to my camera manual, the frame rate of these movies is 25 fps (I am in the UK using the PAL TV system) and so I set Bridge to play back at this rate (it was originally set to something like 29.77) but that made no difference. Is Bridge using a different codec or what?
Bridge uses Quicktime, so any performance issues wil lhave to be attributed to that, most likely.
Mylenium -
All of a sudden I'm getting jerky playback of video. I've tried the usual fixes: trash preferences, delete render files, repair permissions, repair disk, but nothing has helped. This happens in timeline and also with individual clips in the viewer, on all projects, playing from a variety of hard drives. It may be a coincidence, but it started happening today right after I played a few of the videos on the new google video site. Also, when I open the Mac Finder, the columns are slightly jerky, snaping back and forth laterally, which leads me to guess the problem might be in my system rather than in FCP, so a re-install of FCP might not help. My other programs are working normally. Any suggestions? I'm running the latest FCP 5.0.4.
Perhaps it is now time for the Harpoon solution (aka the Guinness solution in the mid and far west)
for those not in the know:
1. turn everything off.
2. unplug firewire cables
3. unplug power cords
4. get up from well worn chair
5. walk to refrigerator
6. open refrigerator
7. remove bottle of Harpoon (Guinness, local micro brew, etc)
8. pop cap
9. pour into glass ( you AREN'T going to drink it from a bottle, are you?)
10. sip responsibly. enjoy the moment. think pure thoughts
11. return to kitchen. If less than 15 minutes has elapsed, have another. Otherwise, retrurn to edit room.
12. Plug everything back together
12. fire up external monitors, VTR, external hard drives & computer in that order.
does it work now? If yes, congratulate your self. If not, oh well, but at least you are in a much better frame of mind to begin some serious troubleshooting.
cheerios,
∏ -
Does adding RAM help solve iMovie4 jerky playback
I have been reading threads about jerky playback in iMovie4 in large projects, after adding music from iTunes etc. My wife has a monster project and playback during editing has became very eratic. I have emptied cache, repaired the hard drive, repaired permissions etc. I have not tossed iMovie preferences. I have 23 gigs of space on the HD and a 250gig external FW HD that I bought after she started the project on the internal HD. I would like to know from you experts: 1. Would it help to move the project to the larger external HD? 2. Would adding RAM help (currently iMac G5 1.8mhz with 768 megs RAM)? 3. Is there any way to tell if the project will export to iDVD smoothly if it continues to look terrible in iMovie playback? I hate to go through a few hours of rendering for nothing. Thanks so much for your help. I always find good and useful info in discussions.
Mike RyanMichael, there are some very useful applications that I highly recommend to keep your Mac running smoothly. As a defragmenter I use Allsoft's Disk Warrior that also has a very good directory repair feature. Check out also Drive Genius that has a host of useful features. Also get iMovie file fixers, invaluable tool that is free that will allow iMovie to import certain files in audio and photo formats that are greyed out and also has other features. I believe I got mine from Mr. Lennart Thelander in previous posts here. Cache Out is an excellent application to clear out cache files. I also advise you do a regular permission repair from Disk Utility in your Utilities folder that is on your Mac. These are basically my must have applications. As for copying your iMovie project to your external, just drag your entire project folder ( the blue one with the media and star folder(s) in it directly in the external hard drive. I find that iMovie is one application that requires a clean (defragmented) drive with ample space to spare. I defrag my drives if I trash files often from them, or if I notice erratic and jerky performance or slowness in response. I hope that some of my suggestions will help your in your editing.
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No playback in PP CS5.0.3, worked fine several weeks ago...
I am unable to get a timeline to playback in PP CS5.0.3 with either existing or new projects (Win 7) on any source video, whether out of my Canon 5D2, Sony CX550, or simple AVI. The last time I used PP was several weeks ago and it was working fine then.
Everything seems to be working fine except playback. Spacebar will toggle to the play button on the video monitor window but nothing else happens, same if clicking the play button. It will render a timeline when pressing enter but the playback afterwards doesn't happen. The video monitor displays the video as expected when dragging the cursor bar on the timeline.
I tried the sledge hammer approach of deactivating, uninstalling, reinstalling, re-updating and get the same results. I also tried CS5.0.0 before updating and got the same results.
No viruses and very little other software on my studio box, and no new software other than Windows updates and NVidia driver since the last time PP was working.
Anyone have any ideas??
Thanks in advance for any suggestions.Just been thru something very similar in CS5.5 (fully updated). Windows 7
The transport controls were showing that the video should have been playing but the monitors were not displaying running footage.
This was also affecting Windows Media Player as well as Audition. Quicktime was o.k but flaky.
After some trial and error and a lot of messing around with drivers and uninstalling stuff...I believe I narrowed it down to my audio card ( M-Audio Delta).
Disabling it (today) seems to be working and I am now using audio from the HD Audio (onboard card).
Fingers crossed at the moment. -
Jerky playback in elements organizer
Hoping some one can help out here. I've downloaded the trial version of Premiere elements to edit videos captured with a Kodak playsport. When I view the captured video in the organizer, it a very jerky playback. When I play back using Windows media player or quicktime, it's nice and smooth.
I've tried capturing the MOV files in 720p and 720p (60fps) and have the same issue.
Anyone have any suggestions?Jerky playback in PE is almost always because you have not rendered the area where the jerk is. - or else you dont have a fast enough computer or enough RAM or have everything on one computer hard disk.
If you have a horizontal red line above any of your video in the time ine it means you dont have it rendered. It is caused every time you insert a transition or effect or if your original meaterial doesnt match the original project settings when you imported the video.
You dont have to render the whole project if there are only parts with a red line - just adjust the work space pointers to cover the red line and render that.
There are numerous posts in this forum about it and the way to cure it -
CPU spikes & jerky playback of audio or video content
I've been having a problem with the flash plugin this year. I'm not sure when it started exactly, but I'm certain that this wasn't happening during 2011.
When at a site that uses Flash for video+audio (Youtube and similar) or even audio-only playback (Turntable, Pandora, etc), I find that the flash plugin causes spikes of 100% CPU usage (on one core) and that the video or audio will pause for a moment during those spikes. The disruption is typically in the 100-500ms range.
Frequency of the spikes seems to vary over time. It's fairly typical to experience a situation where it starts off bad and the frequency of disruption lessens over the course of 30 minutes until there are no disruptions at all. If you keep using playback, it'll work its way into being bad again. You're likely to start using the flash plugin at any point on that sine wave of disruption intensity. It might start working well but slowly get worse, it might start bad and slowly get better, it might start at a tolerable level and work its way worse or better depending on if you're on the rising or falling side of the cycle.
Whatever it is, it isn't my Windows install. I switched from an AMD FX-8120 to an Intel 3930K about a month ago and this problem persisted through new hardware and a fresh install of Windows using the latest device drivers for everything. I've even tested different browsers in case it was an issue with only the non-IE plugin or with my specific browser (Opera). The issue happens in Chrome, IE9, Opera, and FF on my system. I've also tested both with and without hardware acceleration, but there is no difference.
I have to wonder if there are any known issues with particular sound cards (Xonar STX), unusual video configurations (dual Radeon 6970s in crossfire), or peripherals. Perhaps with output sampling rates (96 KHz) or security software like MSE?
Anyhow, I mention this here in the hope of either raising awareness of a problem or finding answers if this is a known issue. It's silly that playing back audio would be a challenge in 2012 with good equipment. There is sure to be a logical explanation that can help lead me to a resolution. Thank you.Hey Tbird, I was asking the guys about this jerky playback bug here:
https://bugbase.adobe.com/index.cfm?event=bug&id=3155813
It turns out this problem is very likely found in mainly computers with single-core CPUs or low-power mutiple-core CPUs. What type of CPU model is on your computer?
My advice to everyone who has this jerky or choppy or stuttering playback on Flash Player 11.2 is to downgrade back to Flash Player 11.1 for now until the Adobe guys can fix this problem which seems to be with the multi-threaded decoding engine introduced in Flash Player 11.1. Make sure you uninstall Flash Player 11.2 completely before installing Flash Player 11.1.
You can get Flash Player 11.1 in this zip file archive from the link below. Just make sure you look for the right setup folder with the right setup program file in zip file archive (For example, if you got Windows 64-bit OS, then look for win64 (or x64 for windows ). If you got windows 32-bit OS, then look for win32 (or x86 for windows)
http://fpdownload.macromedia.com/get/flashplayer/installers/archive/fp_11.1.102.63_archive .zip -
Jerky playback of movie trailers within iTunes
When I try to view movie trailers within iTunes itself, the playback is jerky. It pauses and stops before resuming.
This is repeatable on two computers (Mac Pro and a Mac Mini), both running the latest version of iTunes and OS X Snow Leopard. I have a DSL connection
Yet, if I use a web browser (Safari) to go to trailers.apple.com/trailers/ , the playback is fine. Which makes me think that there is some setting within iTunes. But I cannot find any setting to change.
Any ideas?
As soon as I post this message, I'm going to boot up in OS X Lion and see the results.When I boot into OS X Lion, the playback is fine. I reboot into OS X Snow Leopard, no change (that is, the jerky playback continues).
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Adobe Premiere 8.0 - jerky playback
Guys, here are my computer specs. Should I have a problem with resource requirements?
Base processor
Core 2 Quad Q6700 (K) 2.66 GHz
1066 MHz front side bus
Socket 775
Chipset
Intel G33 Express
Motherboard
Manufacturer: Asus
Motherboard Name: IPIBL-LB
HP/Compaq motherboard name: Benicia-GL8E
Memory
Component
Attributes
Memory Installed
6 GB
Speed supported
PC2-6400 MB/sec
Type
240 pin, DDR2 SDRAM
Hard drive
750 GB SATA 3G (3.0 Gb/sec)
7200 rpm
Video Graphics
GeForce 9500 GS
512 MB GDDR2 memory
I/O Ports: HDMI, VGA, dual-link DVII would like to share some recent progress and new problems with PE8.
Firstly, I made a new short-cut for PE and run PE.EXE i/o PE 8.0. EXE. This saves the time on avoiding the Welcome menu. Thanks for the tip.
Secondly I turned off rendering....
Now....
Two nights ago I decided to import all my videos (total length is about 60mins) into the library. I noticed that after I tried to highlight all the clips and drag them into PE timeline, my PE seemed to have frozen. I/O restarting the computer I let it be. I came back the folowing night, all my files were in the timeline ready for effects and transitions. I suppose it just takes PE some time to "process" the imported videos?
Anyways, I tried to playback some clips in the monitor and the video was jerky. I ignored that fact and tried to add a dozen of random transitions here and there. It was very hard to fine tune the transitions because of the jerky playback. OK, I then went to SHARE and export to PC. I exported to a file in HD preset: 1080i, 30fps, etc. I left my computer along again and returned the following morning. The export was successful; took approx 2.5hrs.
A new file was created on my desktop with extension .m2t. No associated software was assigned to playback this new file so I went to "Open With" and chose Windows Media Player. I think I have a 9 or a 10 ver. It played well, the sound was good, video was sharp (no jerkiness), transitions sucked as they were not fine tuned due to the reasons explained above. The .m2t file was measured at 4.7Gb. I brought a 8Gb CFlash card from my SLR and connected it to the PC via USB. When I tried to copy that .m2t file and paste it to my card, which had almost double the required space, I received a prompt saying the file was too large to copy.
I then tried to copy that file to my HDD sony camera, with 120Gb of available space - the same result. The error is - the file is too large to copy. What the heck? How can I test this file for a playback on my TV if I cannot copy it to any external storage device.
p.s. I am trying to find my most favorite transitions: "No Effect", "Cross Fade". I do not seem to find the two from the list. -
For all that have been experiencing the "jerky movie playback" or the "freeze frame syndrome" I offer this solution. I feel very confident with it as I experienced similar slow downs with my old Power Mac 8500 years ago and it was the exact same issue. At that point I had just upgraded to the most current version of Quicktime. It created a slowdown with just about every process one could think of, right down to the redraw rate on my screen (excruciatingly slow). I eventually solved the problem by downgrading back to the previous version of QT..
In any case after recently upgrading my Imac to QT 7.0x (7.03 to be exact) from 6.5.2 I began to experience the dreaded "jerky playback" to movies that had previously run very smoothly; all movies, all sizes, and with all varieties of audio clips, music and voiceovers. It was such extreme degradation that it rendered IMovie virtually unusable. From my previous experience I immediately suspected the QT upgrade. After researching everyone's discussion threads for a couple of hours I was convinced that QT 7.0x was indeed the problem and I immediately downgraded to 6.5.2, .... and voila; my movie projects returned to their old reliable selves. (and that's with a mere 5gb free space on my hard drive). So if you're experiencing "jerky playback" I strongly suggest a QT downgrade to 6.5.2. You can find the downgrade options on the Quicktime discussion board. Hope this helps you as it did me. Happy movie making.Too bad you were so in a hurry downgrading, you didn't even perform some troubleshooting. QT 7 does have advantages, mainly H.264 support.
I quote Karl Petersen:
”Some people have reported smoother playback after resetting QuickTime preferences. (Yes QuickTime, not iMovie.) To do that quit iMovie, open System Preferences and click on the QuickTime icon. Change something (anything). Close System Preferences. Re-launch iMovie HD.”
I quote Steve Summers1:
”I found out that since I had done an upgrade install of Tiger, I still had old versions of QuickTime components in my /Users/~/Library/QuickTime/ folder. These had the same names as the new QuickTime 7 components which were in the /System/Library/QuickTime/ folder. QuickTime was trying to load the old components from my user library into the new QuickTime application.
”I deleted the old ones from the user location, along with some of the really old (circa 2002) non-competing components which were still in there. Then I restarted, just for good measure.
”My error messages went away, and QuickTime 7 is working as it should.” -
Jerky playback, sluggish operations while editing
I've never had any troubles with video until now. I'm getting jerky playback on my machine, where under the previous iMovie I didn't. The playback display will freeze and skip, while the vertical red place marker pauses and jumps forward. The video doesn't have sound at this point, so I don't know if sound is skipping. I'm running on a 30" Cinema display with iMovie filling the screen.
When I take actions, such as clicking on a clip, there's a slight pause before the action happens. Scrolling through video to find the right frame to split on is very sluggish.
The type of video that I'm editing are screen movies created using Snapz Pro X (http://www.ambrosiasw.com/utilities/snapzprox/) at 30fps, saved as MP4's highest quality. Yes, it's a lot more space, but I like to preserve as much quality as possible through the editing process.
Activity Monitor shows that I have 266MB of RAM free, so I don't believe I'm running into swapping problems. At the suggestion of an Apple Store employee, I had an authorized Apple repair place upgrade the hard drive (to 7200RPM; weeee!) a year ago since they don't do after-market upgrades.
I've used iDefrag to defrag the filesystem. I'm maxed out on RAM (2GB; first generation MBP).
What types of things should I be looking for to get smooth playback while editing?I doubt if any card works well with CS5.
It's best to have an Adobe PC without any video signal card.
1. Use a capture/playout PC to capture and view the images, preferably also without using any Adobe software.
2. Then do your stuff on the Adobe PC.
3. Transfer the mixdown of the video to your capture/playout PC, check the field order and print to tape (without Adobe) or deliver the file.
For now, Matrox MXO2 is also unusable with CS5. Boris FX makes things even worse.
My PC is extremely powerfull, so that can't be it, but it's very unstable.
Manufacturers of cards and Adobe don't work hard enough to combine their products and they just blame eachother.
It used to be quite nice semi-pro stuff for editing but forget that with any video hardware for the time being; it dropped to amateur level.
I'm done trying to fix it or waiting for solutions; I just issue warnings for other users and buyers now.
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