Fix grammar errors in documentation

Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 6 insertions, 6 deletions

diff --git a/libavutil/mathematics.h b/libavutil/mathematics.h
index eb78890096..3e5631116f 100644
--- a/libavutil/mathematics.h
+++ b/libavutil/mathematics.h
@@ -63,31 +63,31 @@ enum AVRounding {
 };
 
 /**
- * Returns the greatest common divisor of a and b.
+ * Return the greatest common divisor of a and b.
  * If both a and b are 0 or either or both are <0 then behavior is
  * undefined.
  */
 int64_t av_const av_gcd(int64_t a, int64_t b);
 
 /**
- * Rescales a 64-bit integer with rounding to nearest.
+ * Rescale a 64-bit integer with rounding to nearest.
  * A simple a*b/c isn't possible as it can overflow.
  */
 int64_t av_rescale(int64_t a, int64_t b, int64_t c) av_const;
 
 /**
- * Rescales a 64-bit integer with specified rounding.
+ * Rescale a 64-bit integer with specified rounding.
  * A simple a*b/c isn't possible as it can overflow.
  */
 int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding) av_const;
 
 /**
- * Rescales a 64-bit integer by 2 rational numbers.
+ * Rescale a 64-bit integer by 2 rational numbers.
  */
 int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
 
 /**
- * Compares 2 timestamps each in its own timebases.
+ * Compare 2 timestamps each in its own timebases.
  * The result of the function is undefined if one of the timestamps
  * is outside the int64_t range when represented in the others timebase.
  * @return -1 if ts_a is before ts_b, 1 if ts_a is after ts_b or 0 if they represent the same position
@@ -95,7 +95,7 @@ int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq) av_const;
 int av_compare_ts(int64_t ts_a, AVRational tb_a, int64_t ts_b, AVRational tb_b);
 
 /**
- * Compares 2 integers modulo mod.
+ * Compare 2 integers modulo mod.
  * That is we compare integers a and b for which only the least
  * significant log2(mod) bits are known.
  *