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doc: add dia_size option documentation
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc> Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
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@ -646,6 +646,24 @@ noise preserving sum of squared differences
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@item dia_size @var{integer} (@emph{encoding,video})
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Set diamond type & size for motion estimation.
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@table @samp
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@item (1024, INT_MAX)
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full motion estimation(slowest)
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@item (768, 1024]
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umh motion estimation
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@item (512, 768]
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hex motion estimation
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@item (256, 512]
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l2s diamond motion estimation
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@item [2,256]
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var diamond motion estimation
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@item (-1, 2)
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small diamond motion estimation
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@item -1
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funny diamond motion estimation
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@item (INT_MIN, -1)
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sab diamond motion estimation
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@end table
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@item last_pred @var{integer} (@emph{encoding,video})
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Set amount of motion predictors from the previous frame.
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