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| 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 /libavutil/display.c | |
| parent | e8a966e361a7512ecfb03073074c8b9084229e69 (diff) | |
| parent | a54f03bf07da964a1b04b03b85bc39deba76efa4 (diff) | |
| download | ffmpeg-c67690f854452df397f3f735d0ff107a3fe51d87.tar.gz | |
Merge commit 'a54f03bf07da964a1b04b03b85bc39deba76efa4'
* commit 'a54f03bf07da964a1b04b03b85bc39deba76efa4':
display: add matrix flip api
Conflicts:
libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/display.c')
| -rw-r--r-- | libavutil/display.c | 10 |
1 files changed, 10 insertions, 0 deletions
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]; +} |