Revision bd41c06f libavutil/mathematics.h

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libavutil/mathematics.h
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#ifndef M_SQRT1_2
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#define M_SQRT1_2      0.70710678118654752440  /* 1/sqrt(2) */
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#endif
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#ifndef NAN
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#define NAN            (0.0/0.0)
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#endif
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#ifndef INFINITY
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#define INFINITY       (1.0/0.0)
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#endif
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enum AVRounding {
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    AV_ROUND_ZERO     = 0, ///< Round toward zero.

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