QUOTE(soulfly @ Aug 16 2011, 11:01 PM)
Some more details on one of the videos
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CODE
General
Complete name : _______
Format : Windows Media
File size : 658 MiB
Duration : 17mn 52s
Overall bit rate mode : Constant
Overall bit rate : 5 148 Kbps
Maximum Overall bit rate : 5 170 Kbps
Encoded date : UTC 2011-03-08 15:30:41.102
Video
ID : 1
Format : VC-1
Format profile : MP@HL
Codec ID : WMV3
Codec ID/Info : Windows Media Video 9
Codec ID/Hint : WMV3
Description of the codec : Windows Media Video 9 - Professional
Duration : 17mn 52s
Bit rate mode : Constant
Bit rate : 5 000 Kbps
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate : 29.970 fps
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.080
Audio
ID : 2
Format : WMA
Format version : Version 2
Codec ID : 161
Codec ID/Info : Windows Media Audio
Description of the codec : Windows Media Audio 9.2 - 128 kbps, 48 kHz, stereo 1-pass CBR
Duration : 17mn 52s
Bit rate mode : Constant
Bit rate : 128 Kbps
Channel(s) : 2 channels
Sampling rate : 48.0 KHz
Bit depth : 16 bits
Stream size : 16.4 MiB (2%)
all renderer mode (VMR/EVR) will have video stutter, like every 2 seconds (literally unwatchable). System default plays fine, but I assume it's not hardware accelerated and processing is done by CPU.
what is the default decoder by Microsoft? how do i set/get that thing?
should i give wmp11 a try?
Codec ID is VC-1 but format is WMV3?

Okay nevermind that since i dont have any VC-1 sample on my comp.
There are many reason that Dxva does not work on your side because
1. Dxva decoder is very picky on video iirc, eg the video was encoded by outdated VC-1 encoder or wrong setting was used during encoding.
2. need a correct renderer to work, else Dxva will fail, WMP11 use EVR so Dxva may work.
3. Subtitle renderer will cause Dxva fail too.
System default does not support Dxva i think, its old renderer. To use the default WMV decoder is to play video with WMP11, so yeah give WMP11 a try.
install WMP11 will update your WMV/VC1 decoder as well iirc.
EDIT: your video is actually WMV9 pro, not really a VC-1, VC-1 is WMV Advanced Profile.
However WMV3 dxva works on Windows XP, but if its really choppy i guest your GPU is too slow, Dxva might really work but your GPU probably is the bottleneck.
This post has been edited by 1024kbps: Aug 17 2011, 12:37 AM