DirectShow 集成网络摄像头曝光控制
我正在尝试控制笔记本电脑集成网络摄像头的曝光设置。
我无法通过 DirectShow 以编程方式控制它 - 当我调用它时,IAMCameraControl 接口返回 E_PROP_ID_UNSUPPORTED CameraControl_Exposure 作为 CameraControlProperty。
我已经使用上述 DirectShow 界面成功更改了不同捕获设备(例如 Logitech 网络摄像头)中的曝光设置。
当 IAMCameraControl 无法实现曝光控制时,是否还有另一个 DirectShow 接口可以用于曝光控制?
还有其他方法可以控制曝光设置吗?也许直接通过相机驱动程序(不使用 DirectShow 作为中介),如果是这样 - 如何?
提前致谢!
I'm trying to control the exposure settings in a laptop integrated webcam.
I can't control it programatically through DirectShow -
IAMCameraControl interface returns E_PROP_ID_UNSUPPORTED when I call it with
CameraControl_Exposure as the CameraControlProperty.
I've successfully changed the exposure settings in different capture devices (such as Logitech webcams) using the above DirectShow interface.
Is there another DirectShow interface that I could use for exposure control when IAMCameraControl can't do so?
Is there any other method in which I could control the exposure settings? maybe directly through the camera driver (without using DirectShow as a mediator), if so - how?
Thanks in advance!
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当相机不通过 DirectShow 提供此设置时,您只能使用制造商特定的接口,即“制造商特定的”。
您是否尝试过在 GraphEdit 中运行相机?这会显示设备支持的属性的对话框。
When the camera doesn't offer this setting through DirectShow, you are left only with using manufacturer specific interfaces, which are "manufacturer specific".
Have you tried to run the camera in GraphEdit ? That shows a dialog for the properties the device supports.