Way to convert 1080p mkv file into apple tv friendly 720p video without visualhub?

Discussion in 'Apple TV and Home Theater' started by gregvet, Dec 15, 2008.

  1. gregvet macrumors regular

    gregvet

    Joined:
    Jan 21, 2008
    Location:
    Brighton, UK
    #1
    As I missed the boat with visualhub (no longer available), I am trying to find a way to convert ripped 1080p video into Apple TV friendly HD format. Is there an alternative program to do this? And why does handbrake not allow this, given that it can deal with the mkv file in the first place!
     
  2. dynaflash macrumors 68020

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    Mar 27, 2003
    #2
    It doesn't ? Why not ?
     
  3. Trip.Tucker Guest

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    Mar 13, 2008
  4. nick9191 macrumors 68040

    Joined:
    Feb 17, 2008
    Location:
    Britain
    #4
    You need Quicktime Pro to export.

    Try MpegStreamClip + Perian.
     
  5. brobins macrumors member

    Joined:
    Nov 27, 2008
    #5
    I have used Handbrake to transcode many 1080p MKVs down to 720p M4Vs with bitrates from 4000 to 6000 kbs with both 2 ch AAC & 5.1 ch AC3 soundtracks.

    Handbrake works a treat!
     
  6. gregvet thread starter macrumors regular

    gregvet

    Joined:
    Jan 21, 2008
    Location:
    Brighton, UK
    #6
    Yes I now realise that if I start with the Quicktime setting that it is possible. I was starting with the apple tv setting (doh!). Any suggestions as to the settings to use?
     
  7. brobins macrumors member

    Joined:
    Nov 27, 2008
    #7
    I have always used the AppleTV preset, nothing else!

    I have been using:-

    AppleTV

    2 Pass - Turbo 1st Pass

    3000 to 6000kbs depending on source

    1280 x whatever

    AAC Pro Logic II

    AC3 Passthrough

    Thats about it!

    Cheers
     
  8. dynaflash macrumors 68020

    Joined:
    Mar 27, 2003
    #8
    Yep, you can start there (and probably should). Adjust the picture size accordingly.
     
  9. geoffreak macrumors 68020

    geoffreak

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    Feb 8, 2008
  10. wnbasac macrumors newbie

    Joined:
    Dec 16, 2007
    #10
    just how long did it take to convert the file????
     
  11. Transporteur macrumors 68030

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    Nov 30, 2008
    Location:
    UK
    #11
    Such conversions really depend on the source file, the presets and of course on the machine you use.
     
  12. rayward macrumors 65816

    Joined:
    Mar 13, 2007
    Location:
    Houston, TX
    #12
    When converting 1080p MKV files to 720p M4V files for my Apple TV, I use Handbrake's Apple TV preset, but make the following tweaks:

    - Set the framerate to 24
    - Set anamorphic to "none"
    - Set the picture width to 1280 x whatever the original ratio comes out to

    I also check to make sure that Handbrake is set to make a second Passthru track, and select any forced subtitles.

    Occasionally, this will yield a file too big for Apple TV, in which case I re-encode, setting the target file size to 4000.
     
  13. dynaflash macrumors 68020

    Joined:
    Mar 27, 2003
    #13
    erm, if you are starting with the appletv preset then it means "Large file size" is checked which means it creates a 64 bit mp4 which can be really as large as you wish. without that checked its a 32 bit mp4 which can not be > 4 GB. The atv itself plays pretty much any size mp4 file, as long as its 64 bit.
     
  14. getbigg21 Guest

    Joined:
    Jun 5, 2005
    #14
    now if you are using handbrake and converting an mkv 1080p file does it keep the 1080p when making it an mp4 file?
     
  15. dynaflash macrumors 68020

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    Mar 27, 2003
    #15
    Well, depends on your settings. The AppleTV preset scales down since the appletv can not play 1080p.
     
  16. getbigg21 Guest

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    Jun 5, 2005
    #16
    oh okay so even if you change the format to "mp4" it can only play 720p content?
     
  17. dynaflash macrumors 68020

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    Mar 27, 2003
    #17
    Yep. and only up to 25 fps, 540p at 30 fps. Its pretty much documented everywhere.
     
  18. rayward macrumors 65816

    Joined:
    Mar 13, 2007
    Location:
    Houston, TX
    #18
    I select the ATV preset, before making my tweaks, which checks the large file size box as you say. But still, if the file is over 5 gigs, it doesn't show up in the menu on my Apple TV.
     
  19. bucksaddle macrumors 6502

    Joined:
    Dec 4, 2008
    Location:
    UK
    #19
    That'll be because the bit-rate of the movie has exceeded the Apple TV's limitation, not really anything to do with the size of the file. My Godfather 2 Blu-Ray rip is 6.5Gb in size, but the bitrate is within limits and looks and plays fine. The Apple TV preset in HandBrake is a little too rich (in terms of CQ percentage setting) for hi def content (IMHO). You can either control it with what you are doing now (setting the target size), or lower the CQ value for hi def content. Somewhere between 57 - 59% should give you acceptable quality and keep it within the ATV's limitations.
    There are many arguments on here and over on the HandBrake forums about best perceived quality, but i think it is generally accepted that the target size option is the worst of the three options, with CQ being the best.
    It's all about what looks good for you though.
    Cheers
     
  20. rayward macrumors 65816

    Joined:
    Mar 13, 2007
    Location:
    Houston, TX
    #20
    Thanks for the tip. I'm ok with the encodes I've made with the file size limited, they look good, but I'll try the CQ fix next time this happens.
     

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