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

    Jun 12, 2005
    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


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


    Jan 13, 2008
    I would hope/assume so. I'm considering buying an HD 6870 for my hackintosh.
  4. miknos Suspended


    Mar 14, 2008
    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 604

    Jul 11, 2009
    Apparently it's already enabled for ATI in 10.6.x:
  6. iBug2 thread starter macrumors 68040

    Jun 12, 2005
    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

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

    May 11, 2010
  9. Mr. Retrofire macrumors 601

    Mr. Retrofire

    Mar 2, 2010
    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."

    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


    Jun 19, 2005
    Minneapolis, MN, USA, Urth
    HD4850 has it too...

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

    Try this video:

    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

    Jul 21, 2011
    Los Angeles, CA

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