display: add matrix flip api

Vittorio Giovara committed 12 years ago

Commit a54f03b1 parent 33a7b454 files · +24 −2Browse files

Unified · Split

4 files

doc/APIchanges +3 −0
libavutil/display.c +10 −0
libavutil/display.h +9 −0
libavutil/version.h +2 −2

doc/APIchanges+3−0

@@ -13,6 +13,9 @@ libavutil: 2013-12-xx · 12 unmodified lines
13	13
14	14	API changes, most recent first:
15	15
	16	+2014-07-xx - xxxxxxx - lavu 53.18.0 - display.h
	17	+ Add av_display_matrix_flip() to flip the transformation matrix.
	18	+
16	19	2014-07-xx - xxxxxxx - lavc 55.56.0 - dv_profile.h
17	20	Add a public API for DV profile handling.
18	21

libavutil/display.c+10−0

@@ -63,3 +63,13 @@ void av_display_rotation_set(int32_t matrix[9], double angle) · 62 unmodified lines
63	63	matrix[4] = CONV_DB(c);
64	64	matrix[8] = 1 << 30;
65	65	}
	66	+
	67	+void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip)
	68	+{
	69	+ int i;
	70	+ const int flip[] = { 1 - 2 * (!!hflip), 1 - 2 * (!!vflip), 1 };
	71	+
	72	+ if (hflip \|\| vflip)
	73	+ for (i = 0; i < 9; i++)
	74	+ matrix[i] *= flip[i % 3];
	75	+}

libavutil/display.h+9−0

@@ -74,4 +74,13 @@ double av_display_rotation_get(const int32_t matrix[9]); · 73 unmodified lines
74	74	*/
75	75	void av_display_rotation_set(int32_t matrix[9], double angle);
76	76
	77	+/**
	78	+ * Flip the input matrix horizontally and/or vertically.
	79	+ *
	80	+ * @param matrix an allocated transformation matrix
	81	+ * @param hflip whether the matrix should be flipped horizontally
	82	+ * @param vflip whether the matrix should be flipped vertically
	83	+ */
	84	+void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip);
	85	+
77	86	#endif /* AVUTIL_DISPLAY_H */

libavutil/version.h+2−2

@@ -54,8 +54,8 @@ · 53 unmodified lines
54	54	*/
55	55
56	56	#define LIBAVUTIL_VERSION_MAJOR 53
57		−#define LIBAVUTIL_VERSION_MINOR 17
58		−#define LIBAVUTIL_VERSION_MICRO 1
	57	+#define LIBAVUTIL_VERSION_MINOR 18
	58	+#define LIBAVUTIL_VERSION_MICRO 0
59	59
60	60	#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
61	61	LIBAVUTIL_VERSION_MINOR, \