diff options
| author | Michael Niedermayer <michaelni@gmx.at> | 2014-07-09 23:57:20 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-07-09 23:57:20 +0200 |
| commit | c67690f854452df397f3f735d0ff107a3fe51d87 (patch) | |
| tree | 2bd4414d0a72eb3eb8cbf70d426039a475254e9d | |
| parent | e8a966e361a7512ecfb03073074c8b9084229e69 (diff) | |
| parent | a54f03bf07da964a1b04b03b85bc39deba76efa4 (diff) | |
Merge commit 'a54f03bf07da964a1b04b03b85bc39deba76efa4'
* commit 'a54f03bf07da964a1b04b03b85bc39deba76efa4':
display: add matrix flip api
Conflicts:
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
| -rw-r--r-- | doc/APIchanges | 3 | ||||
| -rw-r--r-- | libavutil/display.c | 10 | ||||
| -rw-r--r-- | libavutil/display.h | 9 | ||||
| -rw-r--r-- | libavutil/version.h | 2 |
4 files changed, 23 insertions, 1 deletions
diff --git a/doc/APIchanges b/doc/APIchanges index 97637691dc..3def4916b6 100644 --- a/doc/APIchanges +++ b/doc/APIchanges @@ -15,6 +15,9 @@ libavutil: 2012-10-22 API changes, most recent first: +2014-07-xx - xxxxxxx - lavu 53.18.0 - display.h + Add av_display_matrix_flip() to flip the transformation matrix. + 2014-07-xx - xxxxxxx - lavc 55.56.0 - dv_profile.h Add a public API for DV profile handling. diff --git a/libavutil/display.c b/libavutil/display.c index da47cee66b..53e8aa255f 100644 --- a/libavutil/display.c +++ b/libavutil/display.c @@ -61,3 +61,13 @@ void av_display_rotation_set(int32_t matrix[9], double angle) matrix[4] = CONV_DB(c); matrix[8] = 1 << 30; } + +void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip) +{ + int i; + const int flip[] = { 1 - 2 * (!!hflip), 1 - 2 * (!!vflip), 1 }; + + if (hflip || vflip) + for (i = 0; i < 9; i++) + matrix[i] *= flip[i % 3]; +} diff --git a/libavutil/display.h b/libavutil/display.h index 7a338d7c64..2cb930dde1 100644 --- a/libavutil/display.h +++ b/libavutil/display.h @@ -74,4 +74,13 @@ double av_display_rotation_get(const int32_t matrix[9]); */ void av_display_rotation_set(int32_t matrix[9], double angle); +/** + * Flip the input matrix horizontally and/or vertically. + * + * @param matrix an allocated transformation matrix + * @param hflip whether the matrix should be flipped horizontally + * @param vflip whether the matrix should be flipped vertically + */ +void av_display_matrix_flip(int32_t matrix[9], int hflip, int vflip); + #endif /* AVUTIL_DISPLAY_H */ diff --git a/libavutil/version.h b/libavutil/version.h index 0f4b57132c..0d254b1a85 100644 --- a/libavutil/version.h +++ b/libavutil/version.h @@ -56,7 +56,7 @@ */ #define LIBAVUTIL_VERSION_MAJOR 52 -#define LIBAVUTIL_VERSION_MINOR 91 +#define LIBAVUTIL_VERSION_MINOR 92 #define LIBAVUTIL_VERSION_MICRO 100 #define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \ |