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	API changes, most recent first:	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	2014-07-xx - xxxxxxx - lavc 55.56.0 - dv_profile.h	19	2014-07-xx - xxxxxxx - lavc 55.56.0 - dv_profile.h
17	Add a public API for DV profile handling.	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	matrix[4] = CONV_DB(c);	63	matrix[4] = CONV_DB(c);
64	matrix[8] = 1 << 30;	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	void av_display_rotation_set(int32_t matrix[9], double angle);	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	#endif /* AVUTIL_DISPLAY_H */	86	#endif /* AVUTIL_DISPLAY_H */

libavutil/version.h+2−2

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