well that does not need to be there anymore

[ffmpeg] / libavcodec / rational.c

diff --git a/libavcodec/rational.c b/libavcodec/rational.c
index 92db8bbe3eccb8e99e531a7894b6bcbd6bf6ff0c..7ccad9e3835df033fa9b57a5362f78e3a2e17274 100644 (file)
--- a/libavcodec/rational.c
+++ b/libavcodec/rational.c
@@ -31,26 +31,42 @@
 #include "avcodec.h"
 #include "rational.h"
 
+/**
+ * returns b*c.
+ */
 AVRational av_mul_q(AVRational b, AVRational c){
     av_reduce(&b.num, &b.den, b.num * (int64_t)c.num, b.den * (int64_t)c.den, INT_MAX);
     return b;
 }
 
+/**
+ * returns b/c.
+ */
 AVRational av_div_q(AVRational b, AVRational c){
     av_reduce(&b.num, &b.den, b.num * (int64_t)c.den, b.den * (int64_t)c.num, INT_MAX);
     return b;
 }
 
+/**
+ * returns b+c.
+ */
 AVRational av_add_q(AVRational b, AVRational c){
     av_reduce(&b.num, &b.den, b.num * (int64_t)c.den + c.num * (int64_t)b.den, b.den * (int64_t)c.den, INT_MAX);
     return b;
 }
 
+/**
+ * returns b-c.
+ */
 AVRational av_sub_q(AVRational b, AVRational c){
     av_reduce(&b.num, &b.den, b.num * (int64_t)c.den - c.num * (int64_t)b.den, b.den * (int64_t)c.den, INT_MAX);
     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 a;
     int exponent= FFMAX( (int)(log(ABS(d) + 1e-20)/log(2)), 0);