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Old 28th November 2005, 19:33   #20  |  Link
redfordxx
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Join Date: Jan 2005
Location: Praha (not that one in Texas)
Posts: 863
I have one question concerning ME impact on Bframes:

I have seen examples and recommendations to make 1st pass with lower quallity ME to save the time. Please tell me what if some of following is incorrect.
1. Base of B-frames is good references to the other frames. If there is not possible good reference, encoder decides not to make Bframe and writes this decission to statsfile
2. In second pass it is not possible to change this "decission"
Conclusion: Reducing ME in 1st pass decreases the quality of the second pass which can't be fully recovered even with ESA. Just to understand how x264 works.
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