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Originally Posted by benwaggoner
Reencoding to save ~15% file size seems pretty pointless to begin with. Better to just leave the video bitstream alone if possible.
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The only reason I could see is to make the content fit a size constrained medium, eg a BD-25.
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Back when Doom9 was strapping and new, there were utilities that would reduce MPEG-2 encodes by 1-2 QP while preserving motion vectors, which was a pretty simple and very fast way to trim off up to maybe 20% in file size. Has anyone ever tried to do something similar for H.264?
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'DVD Shrink' or similar for H.264, you mean? Interesting thought.