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| author | Vittorio Giovara <vittorio.giovara@gmail.com> | 2015-03-17 17:38:48 +0000 |
|---|---|---|
| committer | Vittorio Giovara <vittorio.giovara@gmail.com> | 2015-03-23 20:53:28 +0000 |
| commit | e4fe535d12f4f30df2dd672e30304af112a5a827 (patch) | |
| tree | 1ed7edafbb76a3dadaf01e190c681682f8873896 /libavutil/display.c | |
| parent | e0046bc9c96150fa06146ace9093f06857dd7b23 (diff) | |
mov: Write the display matrix in order
This will allow to copy the matrix as is and it is just cleaner to keep
the matrix in the same order specified by the mov standard (which is
also explicitly described in the documentation).
In order to preserve compatibility, flip the angle sign in the display API
av_display_rotation_set() and av_display_rotation_get(), and improve the
documentation mentioning the rotation direction.
Diffstat (limited to 'libavutil/display.c')
| -rw-r--r-- | libavutil/display.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavutil/display.c b/libavutil/display.c index 74aceb2847..f7500948ff 100644 --- a/libavutil/display.c +++ b/libavutil/display.c @@ -46,12 +46,12 @@ 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); |