Error selecting input 0 VIDIOC_S_INPUT: Device or resource busy是什么意思

这个错误通常发生在视频设备（例如摄像头）被另一个进程或应用程序占用时。在这种情况下，无法对其进行更改或设置。

可能的解决方案包括：

1. 关闭或退出其他正在使用视频设备的应用程序。
2. 确认设备是否正确连接并已正确安装驱动程序。
3. 尝试使用不同的视频设备或更改设备的输入源。
4. 重启计算机，以确保所有资源都被释放并可以重新分配。

相关问题

VIDIOC_S_INPUT: Device or resource busy

This error message indicates that the requested input source for a video capture device is currently being used by another process or application.

To resolve this issue, you can try the following steps:

1. Close any other applications that may be using the video capture device.
2. Make sure that the video capture device is not being used by any other process or service in the background.
3. Check if any other instance of the video capture device is running and terminate it.
4. Restart the device or the application that is trying to access the video capture device.
5. Try selecting a different input source for the video capture device.

If none of these steps resolve the issue, you may need to consult the device manufacturer's documentation or seek assistance from their support team.

CMake Warning: No source or binary directory provided. Both will be assumed to be the same as the current working directory, but note that this warning will become a fatal error in future CMake releases. -- Selecting Windows SDK version 10.0.22000.0 to target Windows 10.0.16299. -- Setting CMAKE_CXX_STANDARD: 17 -- Setting CMAKE_POSITION_INDEPENDENT_CODE: TRUE -- Could NOT find wxWidgets (missing: wxWidgets_DIR) CMake Error at C:/cmake-3.25.1-windows-i386/share/cmake-3.25/Modules/FindPackageHandleStandardArgs.cmake:230 (message): Could NOT find wxWidgets (missing: wxWidgets_LIBRARIES wxWidgets_INCLUDE_DIRS media xrc richtext propgrid ribbon stc html aui core net xml base) (Required is at least version "3.1.2") Call Stack (most recent call first): C:/cmake-3.25.1-windows-i386/share/cmake-3.25/Modules/FindPackageHandleStandardArgs.cmake:600 (_FPHSA_FAILURE_MESSAGE) C:/cmake-3.25.1-windows-i386/share/cmake-3.25/Modules/FindwxWidgets.cmake:977 (find_package_handle_standard_args) CMakeLists.txt:86 (find_package) -- Configuring incomplete, errors occurred!

根据您提供的信息，CMake遇到了一些问题。根据错误消息，CMake无法找到wxWidgets库，并且要求的版本至少为"3.1.2"。

要解决这个问题，您可以尝试以下几个步骤：

1. 确保已经正确安装了wxWidgets库，并且已经将其路径添加到了系统的PATH环境变量中。

2. 检查您的CMakeLists.txt文件，确保正确地设置了wxWidgets的配置选项。例如，您可以使用`set(wxWidgets_ROOT_DIR <path>)`指定wxWidgets库的安装路径。

3. 检查您的CMake版本是否支持wxWidgets。根据错误消息，要求的CMake版本为至少"3.1.2"。如果您当前使用的CMake版本较低，可以尝试升级到更高的版本。

4. 如果以上步骤都没有解决问题，您可以尝试手动指定wxWidgets的相关路径和选项。您可以使用`set(wxWidgets_LIB_DIR <path>)`和`set(wxWidgets_INCLUDE_DIR <path>)`分别指定wxWidgets库和头文件的路径。

请注意，具体的解决方法可能因您的环境和项目配置而有所不同。建议您参考相关文档或寻求更详细的帮助以解决此问题。

希望这些信息对您有所帮助！如果您有更多问题，请随时提问。