Merge commit '312a9ef04bf6b55e68e4a61694b169cd3cc69bb8'

[ffmpeg] / libavutil / display.h

diff --git a/libavutil/display.h b/libavutil/display.h
index 2cb930dde164b41ad15a88682ad033203d0db7cf..c0cfee326d193eede89d975fce636638e74e9c3d 100644 (file)
--- a/libavutil/display.h
+++ b/libavutil/display.h
@@ -55,9 +55,9 @@
  * Extract the rotation component of the transformation matrix.
  *
  * @param matrix the transformation matrix
- * @return the angle (in degrees) by which the transformation rotates the frame.
- *         The angle will be in range [-180.0, 180.0], or NaN if the matrix is
- *         singular.
+ * @return the angle (in degrees) by which the transformation rotates the frame
+ *         counterclockwise. The angle will be in range [-180.0, 180.0],
+ *         or NaN if the matrix is singular.
  *
  * @note floating point numbers are inherently inexact, so callers are
  *       recommended to round the return value to nearest integer before use.
@@ -65,8 +65,8 @@
 double av_display_rotation_get(const int32_t matrix[9]);
 
 /**
- * Initialize a transformation matrix describing a pure rotation by the
- * specified angle (in degrees).
+ * Initialize a transformation matrix describing a pure counterclockwise
+ * rotation by the specified angle (in degrees).
  *
  * @param matrix an allocated transformation matrix (will be fully overwritten
  *               by this function)