D/ncnn: closeCamera W/NdkCamera: close D/ncnn: openCamera 0 W/NdkCamera: open W/NdkCamera: open 0 E/ACameraManager: Get camera characteristics from camera service failed: Status(-8): '10: getCameraCharacteristics:565: Unable to retrieve camera characteristics for device : No such file or directory (-2)' openCamera: cannot get camera characteristics for camera . err -10000 E/NdkCameraDevice: ACameraDevice_createCaptureRequest: invalid argument! device 0x0 request 0x7ec7a483b8 E/NdkCaptureRequest: ACaptureRequest_addTarget: Error: invalid input: req 0x0, req-targets 0x0, target 0x7eafa3b260 E/NdkCameraDevice: ACameraDevice_createCaptureSession: Error: invalid input: device 0x0, outputs 0x7eac7384a0, callbacks 0x7fea1a8778, session 0x7ec7a483d0 E/NdkCameraCaptureSession: ACameraCaptureSession_setRepeatingRequest: Error: invalid input: session 0x0, numRequest 1, requests 0x7ec7a483b8

[ainia123]

Error calling camera

D/ncnn: closeCamera
W/NdkCamera: close
D/ncnn: openCamera 0
W/NdkCamera: open
W/NdkCamera: open 0
E/ACameraManager: Get camera characteristics from camera service failed: Status(-8): '10: getCameraCharacteristics:565: Unable to retrieve camera characteristics for device : No such file or directory (-2)'
openCamera: cannot get camera characteristics for camera . err -10000
E/NdkCameraDevice: ACameraDevice_createCaptureRequest: invalid argument! device 0x0 request 0x7ec7a483b8
E/NdkCaptureRequest: ACaptureRequest_addTarget: Error: invalid input: req 0x0, req-targets 0x0, target 0x7eafa3b260
E/NdkCameraDevice: ACameraDevice_createCaptureSession: Error: invalid input: device 0x0, outputs 0x7eac7384a0, callbacks 0x7fea1a8778, session 0x7ec7a483d0
E/NdkCameraCaptureSession: ACameraCaptureSession_setRepeatingRequest: Error: invalid input: session 0x0, numRequest 1, requests 0x7ec7a483b8

[wbq-code]

同样的问题，请问解决了吗

[liuweixue001]

请问

同样的问题，请问解决了吗
请问解决了吗，我得设备只有一个摄像头，获取不到摄像头id

[qiujianchen]

我也遇到了一样的问题，请问解决了吗？

[2111905222]

同问，请问解决了吗

[caibi]

该问题是由于你使用的测试手机不支持camera2 api，可以通过以下代码查看每个摄像头支持的camera api
CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId); Log.d("Img", "INFO_SUPPORTED_HARDWARE_LEVEL " + characteristics.get(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL));

INFO_SUPPORTED_HARDWARE_LEVEL有4种值：

INFO_SUPPORTED_HARDWARE_LEVEL_LEGACY：处于该级别的设备意味着它只支持Camera1的功能，不具备任何Camera2高级特性，即无法使用Camera2;

INFO_SUPPORTED_HARDWARE_LEVEL_LIMITED：支持Camera1的基础功能，支持部分Camera2高级特性的级别;

INFO_SUPPORTED_HARDWARE_LEVEL_FULL：支持所有Camera2的高级特性;

INFO_SUPPORTED_HARDWARE_LEVEL_3：新增更多Camera2高级特性，例如YUV数据的后处理。