Android的：如何使用网络摄像头在模拟器？ [英] Android: How to use webcam in emulator?

问题描述

我通过在AVD管理的前置摄像头设置为webcam0连接一个摄像头，以我的模拟器。当我开始仿真器的摄像头应用程序，我得到的错误

I'm connecting a webcam to my emulator by setting the front camera to "webcam0" in the AVD Manager. When I start the emulator's camera application, I get the error

CameraService::connect X (pid 702) rejected (invalid cameraId 0).

下面是Android操作系统code中的相关部分：

Here's the relevant portion of the Android source code:

sp<ICamera> CameraService::connect(
    const sp<ICameraClient>& cameraClient, int cameraId) {

    int callingPid = getCallingPid();

    [...]

    if (cameraId < 0 || cameraId >= mNumberOfCameras) {
        LOGE("CameraService::connect X (pid %d) rejected (invalid cameraId %d).",
            callingPid, cameraId);
        return NULL;
    }

    [...]
}

网络摄像头已正确分配为0的ID，因为只有1个摄像头。然而， mNumberOfCameras 是presumably还是0。这意味着相机正在注册仿真器，但它没有尽力去更新连接摄像机的数量。

The webcam has been correctly assigned an ID of 0 because there's only 1 camera. However, mNumberOfCameras is presumably still 0. This means that the camera is being registered by the emulator, but it hasn't bothered to update the number of connected cameras.

我怎么能连接一个摄像头，这样它会得到妥善的仿真器能够识别？

编辑：命令模拟器-webcam名单-avd＆lt;您的AVD＆GT的名称; 在 \ Android的软件开发工具包\工具给出结果：

the command emulator -webcam-list -avd <name of your AVD> in \android-sdks\tools gives the result:

List of web cameras connected to the computer:
Camera `webcam0` is connected to device `AndroidEmulatorVC0` on channel 0 using pixel format `BGR4`

当我启动摄像头从Eclipse的AVD管理器或使用仿真器 - 相机 - 前webcam0 -avd＆lt;您的AVD＆GT的名称; ，我得到如下窗口：

When I launch the webcam from Eclipse's AVD manager or using emulator -camera-front webcam0 -avd <name of your AVD>, I get the following window:

编辑2：这似乎是在模拟器中的错误。建议的答案告诉你怎样做才能设置摄像头，但并没有解决我的问题。我最终用一台笔记本电脑配有内置摄像头解决了这个问题。也许另一个USB摄像头可能也是可以的。

Edit 2: This seems to be a bug in the emulator. The suggested answer tells you what to do to set up the camera, but doesn't solve the problem for me. I ultimately solved it by using a laptop with a built-in webcam. Perhaps another USB webcam might have worked as well.

推荐答案

请在Eclipse下面的步骤。

Follow the below steps in Eclipse.

1. 转到 - > AVD管理
2. 创建/编辑AVD。
3. 硬件>新：
4. 配置摄像头对着背
5. 点击的属性值，然后选择=webcam0。
6. 一旦完成所有的摄像头上面应连接。如果它没有，那么你需要检查你的摄像头驱动程序。

点击此处查看更多信息： <一href="http://stackoverflow.com/questions/1276450/how-to-use-web-camera-in-android-emulator-to-capture-a-live-image">How使用网络摄像头的Andr​​oid模拟器捕获实时图像？

Check here for more information : How to use web camera in android emulator to capture a live image?

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