QtVideo Namespace
相机和视频功能的枚举项。更多...
| 标题： | #include <qtvideo.h> |
| 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
在显示视频帧之前，应对其施加的顺时针旋转角度。该旋转操作在视频坐标系中进行，该坐标系中Y轴指向显示屏下方。这意味着旋转方向符合QTransform::rotate 。
| 常量 | 值 | 描述 |
|---|---|---|
QtVideo::Rotation::None | 0 | 无需旋转，帧的朝向正确 |
QtVideo::Rotation::Clockwise90 | 90 | 该帧应顺时针旋转90度 |
QtVideo::Rotation::Clockwise180 | 180 | 应将画框顺时针旋转180度 |
QtVideo::Rotation::Clockwise270 | 270 | 应将画框顺时针旋转 270 度 |
该枚举类型在 Qt 6.7 中引入。
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