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#1
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Do I need PureVideo codec to get benefits from hardware accelerations?
I'm using GeForce 8600 and ffdshow codec. NVidia is selling PureVideo
codec. This is confusing. Does this mean that the PureVideo technology in GeForce 8600 needs that codec to work? If I use ffdshow, does the hardware acceleration still work? Since PureVideo codec is not a free software.... I need to know about that. |
#2
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Do I need PureVideo codec to get benefits from hardware accelerations?
Cat wrote:
I'm using GeForce 8600 and ffdshow codec. NVidia is selling PureVideo codec. This is confusing. Does this mean that the PureVideo technology in GeForce 8600 needs that codec to work? If I use ffdshow, does the hardware acceleration still work? Since PureVideo codec is not a free software.... I need to know about that. Yes and no. You can get hardware accelerated YUV and post processing through DXVA (Windows Media Player, MPC, etc); however for accelerated decoding functions of MPEG2 and H264 needs a codec that interfaces with your hardware through the driver (i.e. PureVideo). This means DVD and HDTV playback are faster and use your GPU using PureVideo, but only use your CPU and whatever MPEG2 codec you have installed without it. Essentially PureVideo is a codec just like ffdshow (libavcodec) and Divx, but one you have to pay for due to MPEG licensing cost (otherwise it would just be included with the driver). |
#3
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Do I need PureVideo codec to get benefits from hardware accelerations?
Ant wrote:
On 10/14/2007 10:32 AM PT, deimos typed: Cat wrote: I'm using GeForce 8600 and ffdshow codec. NVidia is selling PureVideo codec. This is confusing. Does this mean that the PureVideo technology in GeForce 8600 needs that codec to work? If I use ffdshow, does the hardware acceleration still work? Since PureVideo codec is not a free software.... I need to know about that. Yes and no. You can get hardware accelerated YUV and post processing through DXVA (Windows Media Player, MPC, etc); however for accelerated decoding functions of MPEG2 and H264 needs a codec that interfaces with your hardware through the driver (i.e. PureVideo). This means DVD and HDTV playback are faster and use your GPU using PureVideo, but only use your CPU and whatever MPEG2 codec you have installed without it. Essentially PureVideo is a codec just like ffdshow (libavcodec) and Divx, but one you have to pay for due to MPEG licensing cost (otherwise it would just be included with the driver). Doesn't NVIDIA driver comes with PureVideo? PV rarely changes, and it's a separate package. You can download then register the trail from the NV site. It's also a basic media player, but the codec installs with a little tray icon that you can swtich your PV options in any app. The driver contains components that interface the card with the codec. It's a bit confusing indeed. |
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