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stormy
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加入日期: May 2002
文章: 14
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Originally posted by 珊珊
我的情形是使用multi-pass時,設定要將動態矢量資料寫入mvinfo.bin這個檔
但first pass時他根本沒有產生這個檔,且產生的avi檔高達數G
在做nth pass時(亦即第二次)


從doom9 forum 轉來的文章
引用:
DivX 5.0.4 and Motion Vector Reuse
A quick official word about the MV files and DivX 5.0.4:
Due to some decision difference between 1st pass and nth pass (due to Psychovisual enhancements decision, different quantization decision or Interlace decision), the motion estimation may need to be different on some blocks, so MV file could not be used during the nth pass, enabling MV reuse during nth pass may cause strange artifacts. The Beta period help us to put light on this issue, the 5.0.4 Release carry a workaround: MV reuse is internally disabled; MV files are not wrote nor read. This may cause a little slowdown during nth pass, but will avoid any kind of visual artifacts.
We are working on fixing this issue, but the whole MV reuse concept suffers some major drawback in a mutli-pass environment where encoder can (and will) make different decision during each passes.


就是用了MV會有問題,不要用,等到問題修復..
5.05出了,好像也不是解決這問題...
舊 2003-04-25, 05:50 PM #19
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