Local HD Buffering

Discussion in 'Apple TV and Home Theater' started by 6AL5, Nov 7, 2015.

  1. 6AL5 macrumors member

    Joined:
    Oct 24, 2015
    #1
    My Apple TV seems to be choking on Local HD content purchased from the iTunes store, when you play a HD film/movie from Computers from a local iTunes "Home Share" it keeps buffering it doesn't cache ahead like the Atv 3 so you keep getting buffering it happens on wired and wifi.

    When I play the same film on a Atv3 it is fine and on the progress bar you can see it caching ahead a good 20 or 30 min's

    When I play a SD film on the Atv4 it caches ahead fine

    If I play the film via the store after it caches enough the film plays fine, im beginning to get the feeling Apple would prefer we didn't manage our own content libraries....
     
  2. Rigby macrumors 601

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    Aug 5, 2008
    Location:
    San Jose, CA
    #2
    No such problem here. Is your computer connected via Wifi?
     
  3. xsmett macrumors regular

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    Nov 1, 2015
    #3
    Welcome. Same problem here. Buffering with ATV4, no problem with ATV3. No caching ahead aswell in ATV4. There are already a few threads about it. Be sure to submit the issues to Apple, hopefully they gonna fix it.
    http://www.apple.com/feedback/appletv.html
     
  4. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #4
    No im hard wired at the mo from the computer to the router which is 1Gbit and the Atv4 has been hard wired and wifi with the same outcome...

    On the HD versions of films there is no cache ahead of the position bar
     
  5. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #5
    Here is the SD progress bar
     

    Attached Files:

  6. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #6
    Here is the HD Progress bar
     

    Attached Files:

  7. Rigby macrumors 601

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    Aug 5, 2008
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    San Jose, CA
    #7
    Mine is pre-buffering just fine in HD. If it works with SD but not HD for you, it looks like there is a bandwidth bottleneck somewhere (on the ATV, your network/router, or the computer).
     
  8. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #8
    The HD film has no read ahead cache and if I pause the film network activity ceases, but when watching a SD film it has plenty of read ahead cache and when you pause the film on the atv it continues to pull the film across for read ahead cache
     
  9. Rigby macrumors 601

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    #9
    Hm, weird. Just to make sure: The HD file is purchased iTunes content (i.e. not a self-encoded file)?
     
  10. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #10

    Mac Pro with iTunes on it it has a 1Gbit connection to a Mikrotik RB951G-2HND and as I said a Atv3 in the next room has no issues with the content.
     
  11. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #11

    All purchased content...
     
  12. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #12

    Just downloaded Speedy Net to test bandwith between devices "no TVos version yet hint hint nudge nudge

    Wifi Mac Pro to MBP 35 Mbps

    Mbp to Mac Pro hardwired using Atv4 network cable 755Mbps

    Phone to Mac Pro 40.5 Mbps
     
  13. xsmett macrumors regular

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    Nov 1, 2015
    #13
    @6AL5 The smaller the files are, the more video caching ahead i have. Totally different to the ATV3. I have those problems with both, purchased and own ripped movies. The app airvideo has a network connection test included, i have perfect results there. I think its a ATV4 bug.
     
  14. Rigby macrumors 601

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    #14
    After what was posted here, I tend to agree that it's probably a bug. Perhaps an issue with buffer management on the ATV4. It's just strange that it affects some people but not others. I did some binge watching yesterday (all local HD content purchased from the store), and the only problem I had was that the "Computers" app crashed once. But playback worked fine.
     
  15. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #15
    I think this is a bug as I can unplug the Atv4 replace it with the Atv3 and everything is fine and has been for years, it is only on HD content and using resume film causes even more grief. This came to light when I was watching a HD version of Dances with Wolves but it happens with all my HD films on the Atv4.

    Something in the Atv4 is bottlenecking HD films.
     
  16. Rigby macrumors 601

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    #16
    To check this theory, I just tried streaming the biggest file in my iTunes library (Schindler's List at 8.2GB), and it pre-buffers and plays just fine ...
     
  17. MacFanBoi macrumors regular

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    Aug 29, 2009
    #17
    Silly question 6AL5 the HD movie your trying to watch that doesn't buffer properly have you tried another HD movie to see if it does the same or if its just that one movie.
     
  18. schmidt65 macrumors 6502

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    Jun 23, 2010
    #18
    I'm also having this problem on all my HD movies and TV shows. Real shame as this is what I use the Apple TV most for, rarely happened on the atv 3.

    Looks like I'm going to have to send the atv 4 back
     
  19. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #19
    No it happens on all purchased HD content......
     
  20. moxxham macrumors 6502

    moxxham

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    Mar 8, 2015
    Location:
    Sydney, Australia
    #20
    Stupid reaponse from me, but it's not streaming from iCloud is it? In the settings there is an option for loading local content from iCloud if it is purchased on iTunes. If so, there might be an issue with iCloud?
     
  21. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #21
    Where in the settings is that because I cant find it...? Im trying to play movies from the "My Computer" app on the Atv not the store.
     
  22. MacFanBoi macrumors regular

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    Aug 29, 2009
    #22
    In your iTunes in the movies tab do you see a little cloud picture on the movie poster. If so that means its not stored on your mac's hdd and is streaming it online while your watching it.

    I have a couple HD movies in my iTunes i never bothered to download but im getting it now to test out if I also have the buffer problem and ill let you know how it goes.
     
  23. 6AL5 thread starter macrumors member

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    Oct 24, 2015
    #23
    All the content is on my HD
     
  24. aced411 macrumors 6502

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    Jun 2, 2007
    #24
    I've been watching this thread and testing on mine. I've watched about 5 movies from home sharing so far without buffering and improved startup time (compared to older apple tv). Three were iTunes purchased HD movies and a few were 1080p movies from my own collection. I'm streaming from a 2012 mac mini connected over wifi to the 802.11AC airport extreme. Apple TV is connected to wifi as well.

    Perhaps try switching to wifi on your apple tv. If you have a solid connection and a good router it will be faster than using the 100Mbps ethernet port. Maybe there is an issue and my unit isn't effected.
     
  25. 6AL5 thread starter macrumors member

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    #25

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