lavu/rational: add syntactic sugar.

Add a function to create a rational
and macros for common values.

1 files changed, 11 insertions, 0 deletions

diff --git a/libavutil/rational.h b/libavutil/rational.h
index b9800ee360..7439701db2 100644
--- a/libavutil/rational.h
+++ b/libavutil/rational.h
@@ -46,6 +46,17 @@ typedef struct AVRational{
 } AVRational;
 
 /**
+ * Create a rational.
+ * Useful for compilers that do not support compound literals.
+ * @note  The return value is not reduced.
+ */
+static inline AVRational av_make_q(int num, int den)
+{
+    AVRational r = { num, den };
+    return r;
+}
+
+/**
  * Compare two rationals.
  * @param a first rational
  * @param b second rational