AppleTV can't handle mp4 movie

Discussion in 'Apple TV and Home Theater' started by nicoska, Apr 16, 2008.

  1. nicoska macrumors member

    Joined:
    Jun 16, 2007
    #1
    Hi all, i have a mp4 movie with AAC, Mono, 44,100 kHz H.264, 1280 x 544, at 3745.92 kbit/s and about 3.73 GB size.
    Why it won't sync with my AppleTV (2.0.2) or stream it?
    Thanks

    Nico
     
  2. killmoms macrumors 68040

    killmoms

    Joined:
    Jun 23, 2003
    Location:
    Washington, DC
  3. nicoska thread starter macrumors member

    Joined:
    Jun 16, 2007
    #3
    How can i check this ?

    Nico
     
  4. kolax macrumors G3

    Joined:
    Mar 20, 2007
    #4
    The max bitrate Apple TV can decode is near abouts 5,000kbps. So your bitrate isn't the issue. Nor is the audio setting.

    Give us more information about your setup.
     
  5. MBHockey macrumors 68040

    MBHockey

    Joined:
    Oct 4, 2003
    Location:
    New York
    #5
    It is a bit rate issue. The maximum bit rate for mp4 is 3 Mbps. 5 Mbps is for h.264.
     
  6. kolax macrumors G3

    Joined:
    Mar 20, 2007
    #6
    The OP did say it was an H.264 encoded file....
     
  7. Oilbrnr macrumors 6502

    Joined:
    Jun 15, 2007
    #7
    Can you play it in iTunes? What did you use to encode it?
     
  8. nicoska thread starter macrumors member

    Joined:
    Jun 16, 2007
    #8
    Yes, i can play in iTunes.
    I use to open an mkv file in QuickTime, export to mp4 with video passtrough and audio conversion to AAC.

    Thanks

    Nico
     
  9. dynaflash macrumors 68020

    Joined:
    Mar 27, 2003
    #9
    Depending on your framerate this is your problem.
    From http://www.apple.com/appletv/specs.html

    "H.264 and protected H.264 (from iTunes Store): Up to 5 Mbps, Progressive Main Profile (CAVLC) with AAC-LC audio up to 160 Kbps (maximum resolution: 1280 by 720 pixels at 24 fps, 960 by 540 pixels at 30 fps) in .m4v, .mp4, and .mov file formats"

    So, if you are at ntsc 24 fps then thats not your problem. But if you ntsc video at 29.97 fps (like say a ripped dvd of a television show or whatever) then the atv will not take it as the max size it will accept at that frame rate is 960 x 540.
     
  10. nicoska thread starter macrumors member

    Joined:
    Jun 16, 2007
    #10
    It's 23,98 FPS
    So, how can i check if is high profile or not ?
    Thanks

    Nico
     
  11. dynaflash macrumors 68020

    Joined:
    Mar 27, 2003
    #11
    Well, what did you use to encode it ? The encoder should have shown you the options is uses. Otherwise you'd have to use mp4 dump or some other tool to show you what h.264 options it uses. Not all are ATV compatible.
     
  12. kolax macrumors G3

    Joined:
    Mar 20, 2007
    #12
    Your best using the likes of VisualHub. Costs a small bit, but well worth it.
     
  13. northy124 macrumors 68020

    northy124

    Joined:
    Nov 18, 2007
    #13
    Most MKV's if not all are encoded with H.264 Codec and you passed the video through in QT Pro so it must of been H.264 or you wouldn't of been able to passthrough.

    I think the reason it won't play correctly is because you passed through instad of doing a complete conversion. Copy the video (So you have 2 of it) and then do a full conversion not passthrough and see if it works then.
     
  14. nicoska thread starter macrumors member

    Joined:
    Jun 16, 2007
    #14
    I'm pretty sure that if i'll do a complete conversion (no matter if QickTime oer VisualHub) it will work. But i'm on a Core Duo 2,16 Ghz iMac so...it will take me a long time.
    thanks

    nico
     
  15. northy124 macrumors 68020

    northy124

    Joined:
    Nov 18, 2007
    #15
    Leave it over night then or leave the iMac alone whilst it is converting.
     
  16. NightStorm macrumors 68000

    Joined:
    Jan 26, 2006
    Location:
    Whitehouse, OH
    #16
    Almost every MKV I have ever looked at was encoded with an h.264 profile that is incompatible with the AppleTV. I guess the "scene" likes their high profile. :D
     
  17. MBHockey macrumors 68040

    MBHockey

    Joined:
    Oct 4, 2003
    Location:
    New York
    #17
    Oops, I missed that! :)
     

Share This Page