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Originally Posted by PicardGK
It will try to use planar YUV formats first, like YV12, IYUV, I420. If that fails it will try the packed ones like YUY2. But I just checked and the planar->packed transformation in the player is handled by a slow fallback function currently with x86. This may cost speed, but didn't explain lower cpu usage.
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That would be useful to choose YUV formats like in ffdshow config. My graphics card isn't good with YV12 .. some hroma/luma shift and it propably does some conversion from yv12 color space.
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Originally Posted by PicardGK
One explanation I can think of is vsync. If you don't see tearing this means the ddraw overlay driver uses vsync. Try benchmarking the movie with selecting options/video/null in menu.
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With null video set it uses 100% CPU and gets in benchmark of V 1080p 120% speed.
Regards
Lobuz
ps. Are there any chances of mpeg2 in ts HDTV support witch such fast decompression speed?