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Android: How to use webcam in emulator?

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android

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). 

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;     }      [...] } 

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.

How can I connect a webcam so that it will be properly recognized by the emulator?

Edit: 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` 

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:

enter image description here

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.

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1'' Avatar asked Dec 23 '12 17:12

1''


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2 Answers

UPDATE

In Android Studio AVD:

  1. Open AVD Manager:

AVD menu

  1. Add/Edit AVD:

Specific AVD strip

  1. Click Advanced Settings in the bottom of the screen:

AVD Advanced Settings

  1. Set your camera of choice as the front/back cameras:

AVD Camera Settings

like image 131
nurnachman Avatar answered Oct 10 '22 07:10

nurnachman


Follow the below steps in Eclipse.

  1. Goto -> AVD Manager
  2. Create/Edit the AVD.
  3. Hardware > New:
  4. Configures camera facing back
  5. Click on the property value and choose = "webcam0".
  6. Once done all the above the webcam should be connected. If it doesnt then you need to check your WebCam drivers.

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

enter image description here

like image 20
Lalith B Avatar answered Oct 10 '22 06:10

Lalith B