Lion has H264 hardware decoding on HD5870!

Discussion in 'Mac OS X Lion (10.7)' started by iBug2, Jul 9, 2011.

  1. iBug2 macrumors 68040

    Joined:
    Jun 12, 2005
    #1
    While SL had the hardware decoding feature only on 9400M and 320M chipsets, Lion does have this for dedicated GPU cards it seems. With my HD5870, while playing a 1080p Quicktime movie, CPU usage is 7%.
     
  2. dagamer34 macrumors 65816

    dagamer34

    Joined:
    May 1, 2007
    Location:
    Houston, TX
    #2
    Hopefully this means that other AMD chips are supported too such as the HD 4670 and the 6750M
     
  3. techfreak85 macrumors 68040

    techfreak85

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    Places
    #3
    I would hope/assume so. I'm considering buying an HD 6870 for my hackintosh.
     
  4. miknos Suspended

    miknos

    Joined:
    Mar 14, 2008
    #4
    I have a Intel GMA X3100 (integrated) and I had the same 7% while playing a 720p h264 Matroska (mkv) file using VLC (64bit and no subtitles).
     
  5. chrfr macrumors 603

    Joined:
    Jul 11, 2009
    #5
    Apparently it's already enabled for ATI in 10.6.x:
    http://developer.apple.com/library/mac/#technotes/tn2267/_index.html
     
  6. iBug2 thread starter macrumors 68040

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    Jun 12, 2005
    #6
    Scrap that, I'm sorry. There's no hardware decoding. The CPU usage is low by player but there's a decoder service active while playing the movie which takes around 40% CPU.
     
  7. Roman2K~ macrumors 6502a

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    Mar 11, 2011
    #7
    Hehe, I was about to suggest looking at that other process... I fell for it too :rolleyes:.
     
  8. Schlaefer macrumors member

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    May 11, 2010
    #8
  9. Mr. Retrofire macrumors 601

    Mr. Retrofire

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    www.emiliana.cl/en
    #9
    Apples developer documentation for the VDA API says:
    "This reference describes the Video Decode Acceleration framework available on Mac OS X v10.6.3 and later with Mac models equipped with the NVIDIA GeForce 9400M, GeForce 320M, GeForce GT 330M, ATI HD Radeon GFX, Intel HD Graphics and others."

    http://developer.apple.com/library/mac/#technotes/tn2267/_index.html

    IIRC, all NVIDIA and AMD/ATI GPUs from the past >= 2 years have H.264 and VC-1 decoder units to decode downloaded high definition (720p & 1080p) videos and the content of Blu-Ray disks (MPEG-2, H.264 or VC-1).

    Apples DVD player uses the much older MPEG-2 decoder units now for a very long time (around 5-10 years, IIRC). Apple could also implement the support for WMV9 (VC-1) with nearly zero effort. This would make Flip4Mac (which is NOT hardware accelerated) superfluous.
     
  10. aliensporebomb, Aug 14, 2011
    Last edited: Aug 14, 2011

    aliensporebomb macrumors 68000

    aliensporebomb

    Joined:
    Jun 19, 2005
    Location:
    Minneapolis, MN, USA, Urth
    #10
    HD4850 has it too...

    Yep. This came with the Snow Leopard "Graphics Update" for ATI cards and some Nvidia cards.

    Try this video:
    http://www.youtube.com/watch?v=XITHbsUUlYI

    That video used to be literally unplayable at 1080 on nearly any Mac. My old G5 2.5 could play it but only barely because I had an nVidia GTX 7800GS.

    Watch this at HD1080P. CPU with nothing else running was 6-7% on my iMac i7 2.8ghz.
     
  11. gentlefury macrumors 68030

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    Jul 21, 2011
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    Los Angeles, CA

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