QtVideo Namespace
用于相机和视频功能的枚举。更多
| 头文件： | #include <QtVideo> |
| CMake： | find_package(Qt6 REQUIRED COMPONENTS Multimedia)target_link_libraries(mytarget PRIVATE Qt6::Multimedia) |
| qmake： | QT += multimedia |
| 自 | Qt 6.7 |
类型
(since 6.7) enum class | Rotation { None, Clockwise90, Clockwise180, Clockwise270 } |
类型文档
[since 6.7] enum class QtVideo::Rotation
视频帧在显示前顺时针旋转的角度。旋转在视频坐标中进行，其中 Y 轴在显示屏上指向下方。这意味着旋转方向符合QTransform::rotate 。
| 常数 | 值 | 说明 |
|---|---|---|
QtVideo::Rotation::None | 0 | 无需旋转，图像方向正确 |
QtVideo::Rotation::Clockwise90 | 90 | 框架应顺时针旋转 90 度 |
QtVideo::Rotation::Clockwise180 | 180 | 框架应顺时针旋转 180 度 |
QtVideo::Rotation::Clockwise270 | 270 | 框架应顺时针旋转 270 度 |
此枚举在 Qt 6.7 中引入。
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