x264/h264 audio synch problems at 1080p/24Hz (1 Viewer)

stoked

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  • December 14, 2007
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    TV-Server Version: 1.0RC2 SVN20078
    MediaPortal Version: 1.0RC2 SVN20078
    MediaPortal Skin: Bluetwo Wide
    Windows Version: XP SP3
    CPU Type: Intel 2.4Ghz Core 2 Quad
    HDD:
    Memory: 4GB DDR2-800
    Motherboard: Intel P5E-VM DO(TVserver), Giga-byte P35(TVclient1), Nvidia 8200(TVclient2)
    Video Card: Onboard(TVserver), 8800GT(TVclient1), Onboard 8200(TVclient2)
    Video Card Driver: 175.14
    Sound Card: onboard
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    1. TV Card: Skystar2 DVB-S
    1. TV Card Type: DVB-S
    1. TV Card Driver: 4.4.3
    2. TV Card: Twinhan 102G
    2. TV Card Type: DVB-S
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    MPEG2 Video Codec: Nvidia Video Decoder
    MPEG2 Audio Codec: Nvidia Audio Decoder
    h.264 Video Codec: Corecodec, ffdshow, Cyberlink PowerDVD8
    HTPC Case: Origenae X11
    Cooling:
    Power Supply: Corsair 550W
    Remote: Harmony 880, MCE Remote
    TV: Sony 50" SXRD A3000, Optoma H71 Projector
    TV - HTPC Connection: DVI, HDMI


    I've been trying to debug this issue for quite some time on my Nvidia 8200 system. Basically if I watch x264/h264 videos at 24hz, the audio slow becomes unsynchronized, it usually plays faster than the video but is only noticeable after 20-30min of playback. However, this seems to only happen when I'm using CoreAVC or ffdshow. When I use Cyberlink PowerDVD8 codec the audio stays in sync, the problem is Cyberlink doesn't play quite a few of files properly. I can't seem to figure why Cyberlink works at 24hz and ffdshow/CoreAVC doesn't. I tested regular mpeg2 material at 24hz like DVD's and it works fine with no audio sync issues.
     

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