Revision d1a12956

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libavutil/mathematics.h
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#define FFMPEG_MATHEMATICS_H
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#include <stdint.h>


  		




  
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#include <math.h>


  		




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#include "rational.h"


  		




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#ifndef M_E


  		




  
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#define M_E            2.7182818284590452354   /* e */


  		




  
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#endif


  		




  
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#ifndef M_LN2


  		




  
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#define M_LN2          0.69314718055994530942  /* log_e 2 */


  		




  
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#endif


  		




  
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#ifndef M_LN10


  		




  
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#define M_LN10         2.30258509299404568402  /* log_e 10 */


  		




  
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#endif


  		




  
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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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enum AVRounding {


  		




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    AV_ROUND_ZERO     = 0, ///< round toward zero


  		




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    AV_ROUND_INF      = 1, ///< round away from zero


  		












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