Apple TV and 720p

Discussion in 'Apple TV and Home Theater' started by northy124, Jun 23, 2009.

  1. macrumors 68020

    northy124

    Joined:
    Nov 18, 2007
    #1
    Hi guys,

    I read somewhere that the Apple TV has a hard time with 1280x544/720 films/tv shows and that is the reason for HB's Apple TV Preset not being at normal 720p res.

    I'd like to know what causes the problem is it just a framerate issue (heard that it is particular about it) or is something bigger as I would like to have full 720p films on the Apple TV my uncle is giving me lol

    Please advise, thanks.

    Northy
     
  2. macrumors 6502a

    Joined:
    Dec 30, 2008
    Location:
    Nottingham, UK
    #2
    The AppleTV has no problems with 720p video as long as the frame rate is not higher that 24fps. All the HD content from the iTunes store is 1280x720 at 24fps. I cant speak about encoding HD content in HB as I encode all my HD video using RipBot264 and have no problems playing them on my AppleTV.
     
  3. macrumors 68020

    Joined:
    Mar 27, 2003
    #3
    actually the limit is 25 fps (which covers pal). so if you know your source is 24 fps, go ahead and up the hb res size to 720p.
     
  4. thread starter macrumors 68020

    northy124

    Joined:
    Nov 18, 2007
    #4
    Oh OK so it is a framerate issue, well that makes it easier now lol

    Most of my content is 59.940 fps which is forced down to 29.97 fps, but that is still to much :(

    Anyway at least I know now that it is a framerate issue which I should be able to deal with :)
     
  5. macrumors 6502a

    Shoesy

    Joined:
    Jun 21, 2007
    Location:
    Colchester, UK.
    #5
    IMO I wouldnt say that Appletv has 'no problem' playing HD 720p. Downloaded movies seem to have trouble keeping up in panning / fast action shots, and the machine is very choosy over file formats acquired from anywhere other than the apple store.

    Just my toosents.
     
  6. macrumors 601

    ftaok

    Joined:
    Jan 23, 2002
    Location:
    East Coast
    #6
    Another option would be 960x540/30p, which the aTV can handle. Depending on your source material, it might look better converted to 540/30p.

    ft
     
  7. macrumors 604

    Cave Man

    #7
    That's probably more of a bit rate issue. My Blu-ray transcodes are typically around 6 mbps for the video. Anything much above that won't sync.

    Pretty much has to be an MPEG-4 no more than 1280 wide with h.264, less than 6 mbps, 24/25fps, AAC (and AC3) audio for it to work well.
     
  8. macrumors 6502a

    Joined:
    Dec 30, 2008
    Location:
    Nottingham, UK
    #8
    I`ve had no problems playing both iTunes purchased HD content or HD content I`ve encoded myself, as long as your careful to keep your encodes within spec then there should be no problems. I certainly have had no problems with the AppleTV "keeping up in panning / fast action shots".

    As for the AppleTV being choosy over file formats, well Apple did design it as a player for there own iTunes content and so naturaly limited it to those formats.
     

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