问题
Android Studio, latest Google SDK emulator. I have set back camera emulation mode to Webcam0 to get my usb camera connected to emulator. Unfortunately, it's not working. My camera works without any problems on host computer, for example this:
ffplay /dev/video0
gives me camera video playback. When I run emulator with above settings, camera on emulator just says "Unable connect to camera", then closes itself. Have anybody ever succeded with connecting physical camera to Android emulator? I have found some similar problems out there, but none of them has been resolved.
回答1:
you can try to edit the config.ini of the AVD in ~/.android/avd/avd_name/config.ini like in this link http://viralpatel.net/blogs/enable-camera-in-android-emulator/ or use Android Studio directly like in this Android: How to use webcam in emulator?
if this isn't working see Lekensteyn's answer (2nd) in Connect USB device to Android Emulator?. it describes how a USB device can be passed through to a QEMU emulator. Android emulator is modified QEMU for more details see https://developer.android.com/studio/run/emulator-commandline.html
to find out if your webcam is recognized anyway try emulator @avd_name -webcam-list to get the available AVD use android list avd
more on passing through a USB device to QEMU emulator is also in https://unix.stackexchange.com/questions/250938/qemu-usb-passthrough-windows-guest
来源：https://stackoverflow.com/questions/44699625/make-android-emulator-use-physical-usb-camera