Merge commit 'e4fe535d12f4f30df2dd672e30304af112a5a827'

* commit 'e4fe535d12f4f30df2dd672e30304af112a5a827':
  mov: Write the display matrix in order

Conflicts:
	libavformat/mov.c
	libavutil/version.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/mov.c

@@ -2949,7 +2949,7 @@ static int mov_read_tkhd(MOVContext *c, AVIOContext *pb, MOVAtom atom)
 
         for (i = 0; i < 3; i++)
             for (j = 0; j < 3; j++)
-                sc->display_matrix[i * 3 + j] = display_matrix[j][i];
+                sc->display_matrix[i * 3 + j] = display_matrix[i][j];
 
         rotate = av_display_rotation_get(sc->display_matrix);
         if (!isnan(rotate)) {

libavutil/display.c

@@ -44,12 +44,12 @@ double av_display_rotation_get(const int32_t matrix[9])
     rotation = atan2(CONV_FP(matrix[1]) / scale[1],
                      CONV_FP(matrix[0]) / scale[0]) * 180 / M_PI;
 
-    return rotation;
+    return -rotation;
 }
 
 void av_display_rotation_set(int32_t matrix[9], double angle)
 {
-    double radians = angle * M_PI / 180.0f;
+    double radians = -angle * M_PI / 180.0f;
     double c = cos(radians);
     double s = sin(radians);
 

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)

libavutil/version.h

@@ -57,7 +57,7 @@
 
 #define LIBAVUTIL_VERSION_MAJOR  54
 #define LIBAVUTIL_VERSION_MINOR  20
-#define LIBAVUTIL_VERSION_MICRO 100
+#define LIBAVUTIL_VERSION_MICRO 101
 
 #define LIBAVUTIL_VERSION_INT   AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
                                                LIBAVUTIL_VERSION_MINOR, \