OH标准系统 Camera主要流程调试技巧|极客笔记

本文介绍开源鸿蒙标准系统中的Camera主要流程调试技巧。

Open Camera日志

hilog |grep -iE "CameraApp.*createCameraInput|HCameraService::CreateCameraDevice|camera_hdi_service: OpenCamera" --color

输出:

I A00200/CameraApp: [CameraService]: createCameraInput id = lcam001 name =BACK
E C02b00/CAMERA: {CreateCameraDevice()-hcamera_service.cpp:182} HCameraService::CreateCameraDevice MuteCamera not Supported
I C02b00/CAMERA: {CreateCameraDevice()-hcamera_service.cpp:188} HCameraService::CreateCameraDevice before insert! cameraId: lcam001, pid = 5828, devices size = 1, cameraIds size = 0
I C02b00/CAMERA: {CreateCameraDevice()-hcamera_service.cpp:193} HCameraService::CreateCameraDevice after insert! cameraId: lcam001, pid = 5828, devices size = 1, cameraIds size = 1
D C02500/camera_hdi_service: OpenCamera() OpenCamera entry
D C02500/camera_hdi_service: OpenCamera() OpenCamera cameraId find success.
D C02500/camera_hdi_service: OpenCamera() open camera success.
I A00200/CameraApp: [CameraService]: createCameraInput end

其中，

/CameraApp 是应用进程的log
/CAMERA 是Camera Service进程的log
/camera_hdi_service 是Camera Host进程的log

CameraServie dump

hidumper -s CameraService

输出

-------------------------------[ability]-------------------------------


----------------------------------CameraService---------------------------------
-------- Summary -------
# Number of Cameras:[1]:
# Number of Active Cameras:[2]:
# Number of Camera clients:[0]:
-------- CameraDevice -------
# Camera ID:[lcam001]:
    ## Camera Ability List:
        Camera Position:[Front]:    Camera Type:[Wide-Angle]:    Camera Connection Type:[Builtin]:
        ### Camera Available stream configuration List:
            Number Stream Info: 2
            Format:[RGBA_8888]:    Size:[Width:640 Height:480]:
            Format:[JPEG]:    Size:[Width:1280 Height:960]:
    ## Zoom Related Info:
        Available Zoom Ratio Range:[1.0000001.000000]:
    ## Flash Related Info:
        Available Flash Modes:[ Close Open Auto Always-Open]:
    ## AF Related Info:
        Available Focus Modes:[ Manual Continuous-Auto Auto Locked]:
    ## AE Related Info:
        Available Exposure Modes:[ Manual Continuous-Auto Locked Auto]:
    ## Sensor Info Info:
    ## Video Stabilization Related Info:
        Available Video Stabilization Modes:[ Off]:
    ## Video FrameRateRange Related Info:
        Available FrameRateRange :
            [ 5, 10 ]

    ## Camera Prelaunch Related Info:
    ## Camera Thumbnail Related Info:
-------- Clientwise Info -------