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av_d2q() documentation

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Originally committed as revision 2522 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2003-11-16 19:23:39 +00:00
parent 11498da334
commit bf63eb4bba
1 changed files with 4 additions and 0 deletions
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4
libavcodec/rational.c
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@ -51,6 +51,10 @@ AVRational av_sub_q(AVRational b, AVRational c){
return b; return b;
} }
/**
* Converts a double precission floating point number to a AVRational.
* @param max the maximum allowed numerator and denominator
*/
AVRational av_d2q(double d, int max){ AVRational av_d2q(double d, int max){
AVRational a; AVRational a;
int exponent= FFMAX( (int)(log(ABS(d) + 1e-20)/log(2)), 0); int exponent= FFMAX( (int)(log(ABS(d) + 1e-20)/log(2)), 0);