Video playback skips/stalls

Greetings all.
Bit of a mystery here.
I have a Late 2009 iMac that I occasionally use Win7 on via Boot Camp for gaming.
I have iTunes installed so I can watch Movies/TV Shows from my library (served via iTunes running on 2012 i7 Mac Mini).
When playing any video in Windows 7 with iTunes (SD/HD), it stutters, skips and eventually stalls.
The curious issue is when booted into OS X, I can play the same video in iTunes with no problem.
I have attempted the fix in the KB article related to iTunes/Windows 7 video playback.
http://support.apple.com/kb/TS1718
(disable Direct3D accel/Disable DirectX in QuickTime)
The iMac specs are:
i7, 16GB RAM, 2TB HDD, 512MB Radeon 4850M, 1Gbit wired ethernet to same switch as Mini
OS X 10.8.5
Windows 7 64-bit, SP1
Thanks!

Ok, did some further experimentation.
The same movie plays perfectly on:
My iMac (OS X), 13" MBP (OS X), iPhone 5S, iPad 2, iPad Mini, 2 AppleTVs
It will NOT play on the iMac (Windows 7) or the MacBook Pro (Windows 7) using iTunes 11.1.1
The two machines CAN play the same .m4v file outside of iTunes (using VLC) perfectly.
The problem is absoutely iTunes.

Similar Messages

Video Playback Skipping After Updating Memory Storage

I am currently using a Macbook from 2006, originally running on OS X Tiger but upgraded to OS X Snow Leopard back in 2009. That switch worked fine, no problems. Recently, in an attempt to make my macbook faster, I upgraded the Memory storage. This is my systems original hardware specs:
Model Name: MacBook
Model Identifier: MacBook1,1
Processor Name: Intel Core Duo
Processor Speed: 2 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 2 MB
Memory: 1 GB
Bus Speed: 667 MHz
Boot ROM Version: MB11.0061.B03
SMC Version (system): 1.4f12
I upgraded the Memory from 1 GB to 2 GB as was recommended by Crucial.com. Since the upgrade, any time I watch videos on my computer, the video freezes, skips and/or the audio cuts in and out. I've since switched my Memory back to 1GB and still encounter the same issues. Aside from stating the obvious -- yes I know it's an old computer and I'm due for a computer upgrade in general -- is there a way to improve this video playback issue? Or is the other hardware in my Macbook so dated that the Memory upgrade is too powerful for my computer to maintain? Any serious feedback is much appreciated.

The memory upgrade isn't too powerful, and Snow Leopard should run ok in 2gb of ram. Video takes a lot of resources, try to not have anything else running when you watch video and see if that helps. Are you trying to watch online videos or are these videos stored on your hard drive or a DVD? You might try running Activity Monitor to see if something is running in the background using up valuable resources
Using Activity Monitor to read System Memory and determine how much RAM is being used (OS X Mountain Lion and earlier)
MAkesure that both sticks of memory are being recognized and also make sure that your hard drive isn't getting too full.

Video playback skips as user, fine as root

The title says it all.
mplayer playbacks video well as root but skips as user.
xine on the other hand skips too much frames both as root and user.
That's regardless of any video driver I use ( vesa or i810)
Tried also "mplayer -xv vo" but video still skips as user.
Note that user is added to video group

Problem solved.
Followed the "Smooth playback" part in this article
http://freshmeat.net/articles/view/747/
Thx to kenneth on #archlinux.
xine is still badly skipping, but mplayer is just fine.

DMA2200 video playback skip pauses with Windows 7

Had DMA2200 connected to Vista Media center and all was working fine.
Have upgraded to Windows 7 and when playing back recorded TV and trying to skip forward or back it has big pauses. Playback will stop for about 10 sec and often when it starts again there is no sound for a further 10sec.
Have tried playing back wma file and its better but still not perfect.
DMA2200 is connected via 100MBit cable network.
Have updated firmware to v1.1.12
Any ideas?

Maybe its a network performance counter problem on the PC, Microsoft posted an article on how to fix it but the Operating System was Vista. So, I'm not sure if the steps below will work on a Windows 7 operating system.
Microsoft KB937609
here are the steps
1. On the Media Center computer, click Start and then type cmd in the Start Search box.
2. In the Programs list, right-click cmd, and then click Run as administrator.
3. At the command prompt, type cd %windir%\system32, and then press ENTER.
4. Type Lodctr /R, and then press ENTER.
5. Wait until you receive the following message, and then type exit:
Info: Successfully rebuilt performance counter setting from system backup store
6. Restart the computer, and then reconnect the Extender.
Aside from that, I think meegosh is right. The DMA2200 was designed for Vista and not for Windows 7.
Cheers.

Video Playback Issue due to vibration/jostling

Hi,
Has anyone ever experienced video playback skipping, slowing down, or stopping when the machine is moved, jostled, or experiences some minor bumps and vibration (for example: watching a movie on a bus or train)?
I have experienced this repeatedly and at first thought it was somehow due to the loose fit of the battery however the issue continued following the removal of the battery. Could this then be attributed to, perhaps, the hard disk drive?
This issue is occuring on a W530 with the 500GB standard HDD and the K1000M.
Thank you in advance for your help,
DG

Hi DG and welcome to the community,
That's the ThinkPad Active Protection system. You can adjust the sensitivity in Control Panel.
Regards,
Dave
T430u, x301, x200T, x61T, x61, x32, x41T, x40, U160, ThinkPad Tablet 1838-22R, Z500 touch, Yoga Tab 2 Windows 8.1, Yoga Tablet 3 Pro
Did someone help you today? Press the star on the left to thank them with a Kudo!
If you find a post helpful and it answers your question, please mark it as an "Accepted Solution"!
If someone helped you today, pay it forward. Help Someone Else!
English Community Deutsche Community Comunidad en Español Русскоязычное Сообщество

How do I stop my itunes video playback from skipping

We just bought a full season of a show and while trying to watch it the video playback is either really slow or it stops and skips while the audio keeps playing. Any suggestions how to fix?

Try:
- Reset the iOS device. Nothing will be lost
Reset iOS device: Hold down the On/Off button and the Home button at the same time for at
least ten seconds, until the Apple logo appears.
- Unsync/delete all music and resync
To delete all music go to Settings>General>Usage>Storage>Music>Tap edit in upper right and then tap the minus sign by All Music
- Reset all settings
Go to Settings > General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information (such as contacts and calendars) and media (such as songs and videos) aren’t affected.
- Restore from backup. See:
iOS: Back up and restore your iOS device with iCloud or iTunes
- Restore to factory settings/new iOS device.

Zen X-Fi2 - Choppys/skipping video playback

+ Just wondering if anyone else has this issue?
I'll get choppy or out of sync sound with avi/divx etc (whatever format tv shows are recorded in).
I have only just upgraded the latest firmware and?haven't tried playing any videos again - although the firmware doesn't mention any video fixes....
Its strange - my (slowly dying) Zen Vision: M plays things perfectly but the X-Fi2 just doesn't cope.

/Re: Zen X-Fi2 - Choppys/skipping video playback< Hi,
I was wondering, is the video playback also choppy? Because the X-Fi2 does have some limitations concerning the resolution and the bitrate of the video part of the file. If they are too high it will get choppy or doesn't play at all.
If it is just the sound that is choppy, I would have a look at the audio format. I read (www.formatoz.com) with these settings:?
video: AVI, mpeg-4 (Xvid) , resolution: 640x480 (or lower), bitrate:?768.
audio: mp3, bitrate doesn't really matter.
About the difference with your Vision: M , I also noticed that my old Zen Vision was a little less picky about the formats in the video... maybe that one had a stronger processor?

Intermittent stalling during audio/video playback

This issue is driving me up the wall. I hope someone can help.
Often, while listening to (for example) iTunes, playback stalls and there is silence for several seconds. If I listen to music for an hour, I guess I might experience the issue anywhere from 3-6 (?) times — though sometimes I can go for more than an hour without it happening. But: it doesn't just happen with iTunes — the same thing happens from time to time when using VLC for video playback (usually accompanied by some video artifacts), or HTML5 video playback within Safari. (I don't have Flash Player installed, though I occasionally use Google Chrome for Flash content; if I recall correctly I think the same thing sometimes happens with Flash videos/audio within Chrome too.)
Along the same lines, now and then I notice that when attempting an action within Mail.app, a task will appear in the Activity Window that's something like, 'waiting for the hard drive,' with a barber pole and stop sign. This will delay my action for several seconds. I suspect this is a different manifestation of the same underlying problem that causes the playback stalling.
I DON'T typically get the swirling beach ball of doom when any of these things happen. Mouse pointer does NOT freeze, and the system seems responsive in all other ways during these episodes.
I'm pretty Mac savvy, and I make sure to do regular hard drive maintenance (verifying volume with Disk Utility, rebuilding directory with DiskWarrior, etc.). My startup partition is only about 2/3 full. This week I used iDefrag to defrag the hard drive, thinking it might fix the problem, but nope it still happens. SMART diagnostics have never shown a problem.
When researching this issue on the web, some folks have suggested keeping an eye on the log files (Console.app), and Activity Monitor. I definitely haven't found anything in the log files that coincides with incidents of stalling. And nothing in particular seems to 'spike' in CPU activity in the Activity Monitor at the same time as the stalling; at least not that I've noticed.
I'm pretty good about keeping apps up to date, and I don't have too many apps running in the background. But the problem persists even when I've quit everything else except the app that's doing the audio/video playback.
This has been going on for a long time, and nothing I've tried has helped. Any advice or suggestions, anyone??
- Gord

Checking Console.app messages once again, the following lines seem to coincide with at least some of the stalling incidents:
===
2013/03/05 1:32:33.231 am Finder[595]: PlotISImageRef 0x29f50026 InContext 0x7f986b3c1340 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:32:34.499 am Dock[590]: no information back from LS about running process
2013/03/05 1:34:58.597 am Safari[8023]: PlotISImageRef 0x20990018 InContext 0x7ffb9b9d6ea0 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:35:00.853 am Dock[590]: no information back from LS about running process
2013/03/05 1:35:39.917 am TextEdit[8026]: PlotISImageRef 0x25910017 InContext 0x7f8873a45940 in {33.000000,493.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:35:41.186 am Dock[590]: no information back from LS about running process
2013/03/05 1:42:14.318 am Finder[595]: PlotISImageRef 0x29f50026 InContext 0x7f986c064400 in {33.000000,514.000000,16.000000,16.000000}, inAlign:5, inTransform:0, inFlags:0 failed. (err=-2582)
2013/03/05 1:42:15.986 am Dock[590]: no information back from LS about running process
===
Any significance to this? Thanks for any help.
- Gord

ITunes 11 HD video playback slow/choppy/stutter/skipping in OSX

Hi guys,
I'm running iTunes 11.0.1 in OS 10.8.2 on my 2.66 GHzm, 8 GB RAM MacBook Pro and playback in HD (1080p) movies/TV shows in iTunes is slow, choppy, stuttering and skipping. Can't seem to fix it. Any help would be greatly appreciated!
Thanks!

I was having this same problem, and found one cause.
I have an extensive library on a Drobo FS. None of the AppleTV's in the house have any problem streaming full 1080p from it, but my new iMac does. Choppy / laggy video play. Movies and TV shows right from the iTunes store. I can have 3 TV's streaming, and even a 4th laptop, all streaming from the iMac iTunes using the Drobo. They all have zero issues. No lag, no choppy, nothing. iMac has the issue even when nothing else is running. Every time.
BTW, it's happend on my old iMac and the brand new one, both with iTunes 11.
I was told to try setting up a second account on my iMac, and try playing video there. It worked. No problems at all. Weird.
So I started looking at differences between the new account, and my standard. I'd already made sure nothing unusual was running, and no processor hogs (not that anything short of Handbrake at full settings has come close to pegging out the processers on the new box). I found one thing, that made a difference. I had Timemachine backups, going to the same Drobo FS (though a different partition) turned on on the iMac.
Timemachine was running the whole time, and didn't impact any other streaming from the same machine, but it did make iTunes video playback of 1080p movies skip like my 6 year old daughter on the iMac. I turned it off.... no more skipping. I've watched 5 TV shows and 2 movies on that account, and not had another single incident.
Obviously, there is still a problem. The iMac and Drobo have enough bandwidth that they can do all the work at the same time (or I'd be seeing the problem on the other devices while streaming), but they are not playing well together on the same account. I've also checked the throughput to the Drobo FS from the iMac... way more than necessary. If it were a read / write thing on the Drobo, then I'd expect other devices to see the issue when I'm watching something on the iMac that is skipping, but there was still no skipping on any other device at that same time...
But, as I said, I found the root cause in my case. I can turn off Timemachine backups while I'm watching a movie on the iMac, or I can move where I write the Timemachine backups to (going to try this over the weekend to be sure it works). If moving the Timemachine backup to a different drive doesn't work, it's a bigger problem.
I'd really love to see Apple fix this and the issue where I have to turn iTunes on in 32bit mode when using an external library (of it gives the funky quicktime error until you delete and readd the movie).
Hope this helps some of you, if not all.

Online Video Playback Jolting/skipping

Sorry if i've posted in the wrong sub-forum, I will move elsewhere if necessary.
My problem is with online video playback, whether on youtube, vimeo, facebook or myspace, it's always the same problem.
The video, even when fully buffered jolts, or skips, the sounds is usually ok [not for vimeo. The video literally stops and starts every 1-3 seconds repeatedly. This makes watching some videos very irritating and i have no clue to avoid it. I've researched it and found nothing.
I use the latest Firefox [3.0.5], and it doesn't seem to be as bad with Safari

I'm afraid this is the wrong sub-forum, but never mind!
It sounds very much like a line speed problem. Even when "fully buffered", the buffers can empty distressingly fast, leaving your playback hiccuping.
There are three approaches that I know of:
1) Have a go at your ISP/telecoms company, and get them to check the line, the ADSL gear, and the speed of your connection (try also with Speedtest or a similar service).
2) Try resetting/restarting your modem and/or router.
3) If nothing can be done to improve the situation, download your videos before watching them (e.g. using RealPlayer Download Manager, or by ctrl-clicking and choosing Download Linked File.
Good luck!

ITunes Video Playback - Sound skipping

Hi - Just bought a new PC and have installed iTunes and brought over all my sound and video files to it via iPod hard disk function. Music is playing perfectly. All video playback is accompanied by terrible stuttering and spluttering of the audio. This is occuring at all times - even if iTunes is the only app running. DVD playback fantastic on PC as is video playback using other apps. Videos i'm trying to play are all under 5 minutes long and differ in type from video podcasts to Pixar content bought from itunes shop. New PC has brilliant spec so don't understand - any suggestions? All help much appreciated - regards!!

I almost have the same problem with the Video Podcast the sound is bad, For the audio only it works perfectly. At first everything was in order and worked well.
Then for no reason I got the trouble with the sound of the Video Podcast there was echoes and the quality was poor.
Cause it’s new computer I re-installed everything, so it worked well again. Then after going on a web site that uses active X for animation I got the problem back. I have no idea if Active X QuickTime are connected but each time the pattern the same.
Have tried to re-install iTunes the Quick Time I have changed the Audio option about filters in both nothing helped.

Are you having iTunes video playback problems?

Do you have iTunes Store-bought videos whose playback is terrible, all choppy and full of freezes while playing back in iTunes?
Have you copied one of those iTunes videos to a thumb drive and had it play back perfectly?
This problem is not fixed by any of the Quicktime adjustments that Apple suggests on their "how to fix video playback issues" page, and, aside from this video playback issue, iTunes is working fine on my machine. As I said, the videos work fine, too, if played from a thumb drive instead of the hard drive.
This has been going on for weeks, and people have been posting about it here on the forum, but, to my knowledge, there's no fix. Just silence.
It might be useful if people who are seeing this problem post some information about their systems. For all I know, all of us who are seeing this problem have one particular vendor's computer.
The computer I am having this problem with is a new HP laptop that came with Vista. This one:
http://h10025.www1.hp.com/ewfrf/wc/genericDocument?docname=c00846935&cc=us&dlc=e n&lc=en&jumpid=regR1002USEN
1.6 GHz AMD Turion ™ 64 X2 Dual-Core Mobile Technology TL-52
2 X 512KB L2 Cache
2048MB DDR2 System Memory (2 Dimm)
NVIDIA GeForce Go 6150 (UMA)
120GB 5400RPM (SATA)
I think the problem has to do with SATA, but I don't really know, except that my computer has it and I am able to play these videos perfectly from a thumb drive but not the SATA hard drive.
If you are having this problem, please consider posting your computer's info. Thanks.
HP Pavilion Entertainment PC Other OS Vista

OK, I figured it out... I too have a dv6000 with Vista and I have been trying to fix this terrible itunes video playback thing and this is what I found. For whatever reason the NVidia driver in the dv series doesn't play nice with Vista. They say that they are looking into it but have no response other than that. Somehow the data from the hard drive isn't fast enough. So, reading this I figured that if that REALLY is the problem that I could use a external drive and have the videos come from there, and Voila!! It works like a charm, no skipping, no stalling, no more blue screens. I hope this is helpful, I know what a pain this can be.
ALSO, apparently some think that you can't watch itunes video while using Vista's "ReadyBoost". I haven't had that issue personally, but I have seen a lot that have who disabled it and had it work fine.
Let me know if this works for everyone else.
Later
S

ITunes / Windows Video Playback.. (what, you actualy want to WATCH vid's?)

I'm sure there are several people out there that are having the same or similar problems, but because I can't seem to find them with the exact problem I'm having, I thought a new thread would be appropriate....
Upgraded from 6 to 7 yesterday... music seems to play OK (not as good as 6, but not all the issues other people are having). Now video playback in iTunes is little more than a slideshow with audio to (almost) match.
When I go to play back any vid podcast, or other video in my library for that matter, iTunes bumps my processor up to 100% and holds it there, and the video does little more than skip and bounce through the entire playback (even if the overlay controls go away fully, the slightest mouse movement brings them back). The audio quality seems to almost follow the video, but they get away from each other (the audio was about 2 seconds ahead of the video/slide show while watching the current version of Photoshop TV). Any other video player works fine, but if I wanted to use them, I would have never installed iTunes in the first place, the idea being that the integration was the blessing.
I USED to be able to watch a video, use Photoshop CS2, have Flash 8 open behind it, After Effects running on a seperate monitor, browse the web, and play freecell all at the same time, with several background utility style apps going all at the same time with out a hickup.
After trying the IDE fix's, the sound setup fix's and any other fix's found in the discussions (and yes, reverting them after they failed to fix the problem), I'm still having an issue, and now I can't find iTunes 6 to try to get back to a good time in life... oh why oh why apple, why do you have just as many issues as windows? I had hoped for so much more....
Anyone? Any Ideas? Anyone willing to email me itunes 6 so I can get back to a better time in life? Or provide answers? I've got a horriable track record with apple (over 20 business stopping questions, and to date 0 responses) so I am about 2 minutes from giving up
Sorry apple, but this is way past frustrating... were all your win/tel beta testers using mac's?
HomeBuilt Windows XP Pro ATI 9700 Pro / AMD Athlon 64 3800+ / hampster on treadmill running his head off...

Are sure that's not Flash needed for those videos?

How can i monitor network traffic to debug video playback issues from a NAS?

I am having problems playing videos on my new Mini that i am using as an HTPC.
I have a brand new Mac Mini running Lion with a 2.7 i7 processor and 8GB of RAM with a wired connection to a switch. .
My switch is a NETGEAR ProSafe GS108T-200NAS set to default settings. I haven't had a chance to start messing with VLAN settings or anything else. There is a bit of a learning curve on my part on this end.
My NAS is a ReadyNAS Pro (RNDP6000) with 3 x 1 TB hitachi ultrastar (HUA722010CLA330) drives and a 1.5 TB seagate (ST31500341AS) drive setup in RAID config using X-RAID2.
The problem I am having is video playback when accessing large video files off of the NAS. These are typically 1080 HD mkv files.
I have tested movies as small as 7.5GB with only slight stutters on occasion. I tried a 10.5GB movie and the stalling was much more pronounced. Movies larger than 11GB are completely unwatchable stalling every minute or so.
I have also tried large movies on the local drive and that is not a problem at all - they play back just fine. Beautiful playback in hidef. Mind you, some of these are the same files that were stalling over the network.
I have also noticed that some other network devices get kicked off the network when a movie is playing.
I think it has something to do with the transfer speed of files over the network and the switch - i am no expert at this mind you.
I am wondering if there is some sort of utility that i can use to monitor network activity on the mini so that i can fix my problem. Or has anyone made chages in their switch settings to optimize data trasfer speeds.
Any advice or recommendations on.
Thank you all!

OK, I did a couple of things and ran things a couple of times.
First what I did settings wise:
I enabled jumbo frames on the Mac Mini, ReadyNAS Pro, and the Netgear GS108T switch. All with MTU set to 9000.
I went ahead and enabled jumbo frames on the rest of the computers on the network just in case.
After these changes I ran into the same problems with videos timing out - very annoying and frustrating as you can imagine.
Then I started playing with device configurations. My original configuration was NAS > Netgear switch > Mac Mini. I went ahead and switched the switch to an Airport Extreme I have as my WAP and the setup looked like this - NAS > Airport Extreme > Mac Mini.
Well, long story short, no go. It appears to me that the NAS is the one having issues providing the necessary data at the proper speed. I also tried playing sopme movies off of the NAS onto a desktop i have and had the same issues - choppy frames and crashing movies. I even tried connecting wirelessly to see if that would work.
BTW, I have the Mac accessing the file system using CIFS.
I don't know what else I could do.
I am going to have to go to the Netgear forums to see if i can figure this out. Hopefully, I can get things going to be able to help some people out.
If anyone has any ideas, they would be greatly appreciated.
My only other alternative is spending $2000 for the thunderbolt capable NAS that Apple sells - it's only money!
Cesar

Iphone 5 video playback problems over quicktime?

ive recently got a new laptop, pre windows 8, and downloaded quicktime pro in order to play my iphone videos right side up because windows media player will play them upside down alot of the time. something i immeadiately noticed was that all my videos from my iphone 5, when played back via quicktime, have a big judder/skip in them every 2 seconds whereis all my iphone 4 videos playback no problem. the few videos i have that are recorded right side up from my iphone 5, because of orientation of the phone during recording, play perfectly fine on windows media player so this this leads me to believe it is a quicktime issue. i have updated to the latest quicktime just a few days ago with hopes of it being corrected but no such luck. im curious if anyone else is having this same problem or knows a fix? also if anyone knows how to flip videos with quicktime so i can just watch them on windows media would be great also. i found a write up how to do it but everytime i try it, after i save it it just reverts back to its orgional orientation. thanks for any help, Jamie

Add me to the list of people having this problem.
I'm running Macbook on 10.5.8. Quicktime is 7.6.9, in case this has any bearing on things.
OK......I just searched a few places and came up with this:
http://en.wikipedia.org/wiki/Perian
It's called Perian, and it's one of a few different options you could use to solve this problem....I just installed it (free), and now the videos play without a hitch. It's a plug-in for Quicktime. There are others that can supposedly do the same thing--look around and give it a shot.
(Also, supposedly this Perian is no longer in open development, and may not work with the newest Quicktime update for the newest Macs, but, like I said, there are other options out there that may work for you instead.)
I have a feeling my problem may have been due to my particular Quicktime/Macbook setup being a bit outdated, but who knows?
Good luck!

Video playback skips/stalls

Similar Messages

Maybe you are looking for