Jerky playback of downloaded TV shows

I have the latest version of the ATV software and I have synced my iTunes to the Apple TV but some shows playback is jerky and skips. The same show plays perfectly in iTunes? Any thought?

I am not sure of the problem but the network speed is not the problem. Mine has started too. I changed to N only and still happening.

Similar Messages

  • 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.
    John

    Hi 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 iTunes purchased TV Shows (specifically:  HEROES)

    Not yet another jerky/playback thread?
    Well, I feel compelled to do so since I have reviewed all of the jerky/playback threads that I could find and I have tried most, if not all, of the suggestions. Namely:
    1. This thread: http://docs.info.apple.com/article.html?artnum=303706
    2. Uninstalled Quicktime and reinstalled (ver. 7.1.6)
    3. Setting "waveout" for audio.
    4. Tried several bit settings for audio (16, 24) along with sampling rates (44000, 48000).
    5. Tried two different versions of NVidia Forceware (ver 97.46, ver 158.18)
    6. Two different sets of drivers for SATA
    The thing that gets me is, I've been watching HEROES all season without incident. In fact, I preferred purchasing each episode and watching it in iTunes as opposed to watching the episodes in my BeyondTV DVR (computer based). One has to conclude that SOMETHING on the system has shifted to affect this change (within the last week), although I'm out of ideas beyond the 6 listed above. I'm tempted to boot into my XP partition to see if everything is fine over there but that would mean I would have to go through the as-of-yet-unfamiliar-to-me process of deauthorizing this "computer" and hoping that my purchases shows re-download. I did this once and I lost the first 6 episodes of Heroes and even "redownloading purchased" media did not bring them back. That's a separate issue that I need to contact Apple about.
    So...any ideas? Any information that I'm lacking here to help troubleshoot?

    Update:
    I booted over into Windows XP (SP2) and everything is fine over there. So, that leads me to the strong inclination that there is something up with the configuration on this side of the divide (Windows Vista 32-bit).
    I'm now beginning to suspect some recent tweaks that were made via the nTune application. For those that don't know, nTune is a utility that allows tweaking of nVidia hardware (nForce, n4 - mobo, PCI bus, SATA, video, etc.) What I'm currently trying to research is getting the automatic tweaks that I enabled to rollback to their default settings. So far, I haven't figured out how to do this. There is an option to load a "baseline" profile from within nTune's menu however the behaviors that I noticed post-tweak are still there (difficult to explain but there are indicators that the new settings are still in effect).
    I'll post back here if I am successful in rolling back the nTune tweaks and see if that makes any difference with the video playback problems I am experiencing.

  • Apple tv gen 1 and 2 jerky playback.

    I have had this issue since i first purchased atv1 when they first came out....jerky playback/lag/ slight delay..whatever you call it..i upgraded my modem to an N series..i got apple extreme and ditched the belkin..i bought apple express......extended the range......
    i bought atv2 thinking maybe it will fix the problem....nope.I have all Apple hardware except the modem and download via wifi..(i have tried ethernet direct and sill the same)...i hassled my ISP and now have around 6mbps.....still have the lag.....i recently downloaded from foxtel..(ethernet) to compare and playback is perfect...what;s the go with Atv....? i am far too gone now to just leave this and accept it as normal...i still have atv 1 on a separate tv and still the same old lag.....any help or suggestions would be most welcome before i ask apple for full refunds of all the movies/tv shows i have bought..i would rather use Apple to buy tv shows and movies than Foxtel in priciple...but i am running out of ideas......when i first went to support originally Apple hadn;t heard of this....?

    Same with 3rd Gen too.  I made a movie in Final Cut Pro, exported as SD, 720p and 1080p.  Plays back smooth on Mac, iPad, iPhone etc... but on AppleTV 3rd gen, it's dropping about half the frames.

  • My Apple TV stops and returns to main menu during movie playback and photo slide show via homesharing. I have a second Apple TV in another room that works fine.

    My Apple TV stops and returns to main menu during movie playback and photo slide show via homesharing. I have a second Apple TV in another room that works fine.

    Intermittent problems are often a result of interference. Interference can be caused by other networks in the neighbourhood or from household electrical items.
    You can download and install iStumbler to help you see which channels are used by neighbouring networks so that you can avoid them, but iStumbler will not see household items.
    Refer to your router manual for instructions on changing your wifi channel.

  • Delay in watching my downloaded TV show

    When I try to watch my downloaded tv show on itunes, there is a delay between the talking and the picture...like a buffering issue? The episode plays fine on my ipod, just not on my computer. ?
    Hp dv2310us   Windows Vista  
    Hp dv2310us   Windows Vista  

    Take a look here and see if any of the tips help:
    Troubleshooting iTunes for Windows Vista video playback performance issues
    Good luck.

  • 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

  • Jerky playback of movies only in iTunes

    Have movies that play perfectly directly from Quicktime (7.1.3) and when loaded on the iPod with iTunes. But when the same file is played within iTunes (7.02) as a movie, the playback is jerky and like stop motion. The apparent frame rate is several per second. Audio playback is fine whike this happens.
    Activity Monitor shows about the same level of CPU utilization in both applications Quicktime and iTunes, at around 20% on my 1.6GHz G5 Powermac.
    I have Quicktime Pro if it makes a difference.
    Using EyeTV (2.3.2) and playing back as a Qucktime movie also produces a clean playback.
    So, the jerky playback is only in iTunes.
    OS X version is 10.4.7, I'd rather not update to 10.4.8.
    I've looked for preference settings and other interactions. Any suggestions?

    If you search (itunes forums) you'd have found this tidbit:
    I found the problem! The jerky playback in iTunes7 is caused by a conflict with the 3ivx D4 4.5.1 component found in the Library/Quicktime/ folder.
    It may also be say an old DivX codec, etc. Same folder. Remove to your desktop and try again.
    Also some have reported turning off the internal mic if you have one, and making sure MIDI settings are at 44.100Khz.
    Give these a try.

  • 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.

  • What do you do when you download a show and it has no sound? ( the volume is up on itunes and my computer)

    what do you do when you download a show and it has no sound? ( the volume is up on itunes and my computer)

    That's what iTunes -> Preferences -> Playback -> Sound Check does - equalizes the volume across tracks to provide a more-even playback.

  • 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.

  • FLV jerky playback

    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

    I 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

  • Problems reading downloaded TV show

    When I try to "read" (via itunes or Apple Quicktime) a downloaded TV show, the images "lump" ie do not follow the right rythm and come as detached from the sound. I tried adjusting my screen definition, but I get the same problem. Help ?

    What are your complete laptop specs? Also, this might help:
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    http://www.info.apple.com/kbnum/n303706

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    When I try to play a downloaded TV show, itunes stops working and I get a error message "APPCRASH". I have updated itunes and removed and reinstalled quicktime.

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    Quit the QuickTime Player if you have it open. Restart the PC and try watching the videos in iTunes again. Do they play now?

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