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标题: 调用相机报错HCameraServiceProxy CreateCameraDevice failed, error: 13 [打印本页]

作者: frank_code 时间: 2024-9-10 14:07
标题: 调用相机报错HCameraServiceProxy CreateCameraDevice failed, error: 13
[md]### 【问题描述】

1. 介绍问题现象和发生的背景
OpenHarmony api10，调用相机报错

![image.png](https://forums-obs.openharmony.c ... wpkt3vwiwf7q7w2.png "image.png")
2. 相关的代码

```

import camera from '@ohos.multimedia.camera'
import common from '@ohos.app.ability.common';
import { BusinessError } from '@kit.BasicServicesKit';

const PERMISSIONS: Array<string> = [
   'ohos.permission.CAMERA']
let previewWidth = 1920;
let previewHeight =1080;
@Entry
@Component
struct Index {
   private mXComponentController: XComponentController = new XComponentController()
   private surfaceId: string = '-1'

   async initCamera(surfaceId: string){
   //动态获取隐私权限
   let context = getContext(this) as common.Context
   // await context.requestPermissionsFromUser(PERMISSIONS)
   // console.log('grantPermission,requestPermissionsFromUser');
   // 创建CameraManager对象
   let cameraManager = await camera.getCameraManager(context)
   if (!cameraManager) {
      console.error('Failed to get the CameraManager instance');
   }
   // 获取相机列表
   let cameraArray = await cameraManager.getSupportedCameras()
   if (!cameraArray) {
      console.error('Failed to get the cameras');
   }
   for (let index = 0; index < cameraArray.length; index++) {
      console.log('cameraId : ' + cameraArray[index].cameraId)                         // 获取相机ID
      console.log('cameraPosition : ' + cameraArray[index].cameraPosition)             // 获取相机位置
      console.log('cameraType : ' + cameraArray[index].cameraType)                   // 获取相机类型
      console.log('connectionType : ' + cameraArray[index].connectionType)             // 获取相机连接类型
   }

   // 创建相机输入流
   let cameraInput = await cameraManager.createCameraInput(cameraArray[2])

   //  打开相机
   await cameraInput.open();

   // 获取相机设备支持的输出流能力
   let cameraOutputCap = await cameraManager.getSupportedOutputCapability(cameraArray[2]);
   if (!cameraOutputCap) {
      console.error("outputCapability outputCapability == null || undefined")
   } else {
      console.log("outputCapability: " + JSON.stringify(cameraOutputCap));
   }

   //获取相机支持的输出能力--支持的预览配置信息
   let previewProfilesArray = cameraOutputCap.previewProfiles;
   if (!previewProfilesArray) {
      console.error("createOutput previewProfilesArray == null || undefined")
   }else{
      console.log("previewProfiles:"+JSON.stringify(previewProfilesArray[0]))
      previewWidth = previewProfilesArray[0].size.width;
      previewHeight = previewProfilesArray[0].size.height;
   }

   // 创建预览输出流,其中参数 surfaceId 参考下面 XComponent 组件，预览流为XComponent组件提供的surface
   let previewOutput = await cameraManager.createPreviewOutput(previewProfilesArray[0], surfaceId)
   if (!previewOutput) {
      console.error("Failed to create the PreviewOutput instance.")
   }else{
      console.log("create the PreviewOutput instance succ.")
   }

   //创建会话
   let captureSession = await cameraManager.createCaptureSession()
   if (!captureSession) {
      console.error('Failed to create the CaptureSession instance.');
      return;
   }
   console.log('Callback returned with the CaptureSession instance.' + captureSession);

   // 开始配置会话
   try {
      captureSession.beginConfig();
   } catch (error) {
      let err = error as BusinessError;
      console.error('Failed to beginConfig. errorCode = ' + err.code);
   }

   // 向会话中添加相机输入流
   try {
      captureSession.addInput(cameraInput);
   } catch (error) {
      let err = error as BusinessError;
      console.error('Failed to addInput. errorCode = ' + err.code);
   }

   // 向会话中添加预览输出流
   try {
      captureSession.addOutput(previewOutput);
   } catch (error) {
      let err = error as BusinessError;
      console.error('Failed to addOutput(previewOutput). errorCode = ' + err.code);
   }

   // // 向会话中添加拍照输出流
   // try {
   // captureSession.addOutput(photoOutput);
   // } catch (error) {
   // let err = error as BusinessError;
   // console.error('Failed to addOutput(photoOutput). errorCode = ' + err.code);
   // }

   // 提交会话配置
   await captureSession.commitConfig();

   // 启动会话
   await captureSession.start().then(() => {
      console.info('Promise returned to indicate the session start success.');
   });
   }

   build() {
   Flex() {
      XComponent({                                                                   // 创建XComponent
         id: '',
         type: 'surface',
         libraryname: '',
         controller: this.mXComponentController
      })
         .onLoad(() => {                                                                // 设置onload回调
         // 设置Surface宽高（1920*1080），预览尺寸设置参考前面 previewProfilesArray 获取的当前设备所支持的预览分辨率大小去设置
         this.mXComponentController.setXComponentSurfaceSize({surfaceWidth:previewWidth,surfaceHeight:previewHeight})
         // 获取Surface ID
         this.surfaceId = this.mXComponentController.getXComponentSurfaceId()
         this.initCamera(this.surfaceId)
         })
         .width('100%')                                                                // 设置XComponent宽度
         .height('100%')                                                             // 设置XComponent高度
   }
   }

}
```
3. 我想要达到的结果

期望调用相机成功，不报错

### 【运行环境】

硬件：RK3588
ROM版本：OpenHarmony 4.0
DevEvoStudio版本：5.0.0
SDK版本：API10
[/md]

作者: frank_code 时间: 2024-9-10 15:28
已解决，授权失败出现的

作者: kuaile 时间: 2024-9-26 16:01
当前最新为api12，请在api12上验证是否有问题。api10跨度太大当前部分接口和错误码都已改变或者修复。

作者: frank_code 时间: 2024-9-27 16:59
回复 kuaile: 目前暂时没有api12环境

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