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correct direction of displaymatrix rotation

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This commit is contained in:
Stefan Dragnev
2022-06-10 15:32:18 +02:00
parent dda2e9374b
commit d09bd6f862
2 changed files with 6 additions and 1 deletions
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modules/videoio/src/cap_ffmpeg_impl.hpp
+1 -1
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@@ -1840,7 +1840,7 @@ void CvCapture_FFMPEG::get_rotation_angle()
data = av_stream_get_side_data(video_st, AV_PKT_DATA_DISPLAYMATRIX, NULL);
if (data)
{
rotation_angle = cvRound(av_display_rotation_get((const int32_t*)data));
rotation_angle = -cvRound(av_display_rotation_get((const int32_t*)data));
if (rotation_angle < 0)
rotation_angle += 360;
}