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HarmonyOS 开发实践——基于CameraKit，通过avrecorder进行录像

获取相机管理对象 1、创建CameraManager对象let cameraManager: camera.CameraManager = camera.getCameraManager(context...);2、通过getSupportedCameras 获取相机列表let cameraArray: Array = cameraManager.getSupportedCameras...(cameraArray[0]);4.3 步骤二：通过 cameraManager.createCameraInput获取相机输入创建相机输入let cameraInput: camera.CameraInput...= cameraManager.createCameraInput(cameraArray[0]);4.4 步骤三：通过cameraManager.createPreviewOutput获取预览输出流...let previewOutput: camera.PreviewOutput = cameraManager.createPreviewOutput(previewProfilesArray[0],

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鸿蒙版 Flutter 库 torch_light 手电筒功能深度适配：跨平台开发者的光明之路

function isTorchSupported(cameraManager: camera.CameraManager) : boolean { let torchSupport: boolean...function isTorchModeSupported(cameraManager: camera.CameraManager, torchMode: camera.TorchMode) : boolean...function setTorchModeSupported(cameraManager: camera.CameraManager, torchMode: camera.TorchMode) : void...{ cameraManager.setTorchMode(torchMode); let isTorchMode = cameraManager.getTorchMode();...function onTorchStatusChange(cameraManager: camera.CameraManager): void { cameraManager.on('torchStatusChange

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从零开发一款相机APP 第六篇: Camera2相机打开功能实现

本课程内容由 @公众号：小驰笔记出品，欢迎关注公众号，获取更多交流信息流程图： 1、获取当前设备支持摄像头颗数 CameraManager manager = (CameraManager) activity.getSystemService...(Context.CAMERA_SERVICE); manager.getCameraIdList(); 2、获取到对应摄像头的ID CameraManager manager = (CameraManager...& facing == CameraCharacteristics.LENS_FACING_BACK) { continue; } } 3、根据camera id打开摄像头 CameraManager...manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE); manager.openCamera(mCameraId...,获取camera服务 CameraManager manager = (CameraManager) activity.getSystemService(Context.CAMERA_SERVICE)

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10行代码开发手电筒应用

示例： function isTorchSupported(cameraManager: camera.CameraManager): boolean { let isSupported = cameraManager.isTorchSupported...function isTorchModeSupported(cameraManager: camera.CameraManager, torchMode: camera.TorchMode): boolean...: camera.CameraManager): void { cameraManager.on('torchStatusChange', callback); } off('torchStatusChange...cameraManager 对象获取成功后可监听。...示例： function unregisterTorchStatusChange(cameraManager: camera.CameraManager): void { cameraManager.off

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鸿蒙next版开发：相机开发-元数据(ArkTS)

function getMetadataOutput(cameraManager: camera.CameraManager, cameraOutputCapability: camera.CameraOutputCapability...function startMetadataOutput(previewOutput: camera.PreviewOutput, metadataOutput: camera.MetadataOutput, cameraManager...: camera.CameraManager): Promise { let cameraArray: Array = []; cameraArray...= cameraManager.getSupportedCameras(); if (cameraArray.length == 0) { console.error('no camera.'...); return; } let sceneModes: Array = cameraManager.getSupportedSceneModes(cameraArray

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Android适配多摄像头

val cameraManager = activity.getSystemService(Context.CAMERA_SERVICE) as CameraManager val cameraId =...cameraManager.cameraIdList[0] cameraManager.openCamera(cameraId, object : CameraDevice.StateCallback...fun getFirstCameraIdFacing(cameraManager: CameraManager, facing: Int = CameraMetadata.LENS_FACING_BACK...fun filterCameraIdsFacing(cameraIds: Array, cameraManager: CameraManager,...: CameraManager, currCameraId: String?

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Android 的多摄像头支持

) as CameraManager val cameraId = cameraManager.cameraIdList[0] cameraManager.openCamera(cameraId, object...检查摄像头列表和摄像头特性： val cameraIdList = cameraManager.cameraIdList // may be empty val characteristics = cameraManager.getCameraCharacteristics...我们可以将这样的一个逻辑包装成一个函数，它可以正确地处理上面提到的情况: fun getFirstCameraIdFacing(cameraManager: CameraManager,...Google 相机应用中切换摄像头按钮要实现这个功能，尝试从CameraManager.getCameraIdList()提供的列表中选择下一个摄像头，但是这并不是个好的方式。...(CameraCharacteristics.LENS_FACING) == facing } } fun getNextCameraId(cameraManager: CameraManager

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鸿蒙next版开发：相机开发-录像(ArkTS)

function getPreviewOutput(cameraManager: camera.CameraManager, cameraOutputCapability: camera.CameraOutputCapability...async function startRecordingOutput(cameraManager: camera.CameraManager, previewOutput: camera.PreviewOutput..., surfaceId: string): Promise { let cameraArray: Array = cameraManager.getSupportedCameras...undefined'); return; } await cameraInput.open(); let recordingSession: camera.VideoSession = cameraManager.createSession...recordingSession.addOutput(previewOutput); // 创建录像输出流 let recordingOutput: camera.VideoOutput = cameraManager.createVideoOutput

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鸿蒙next版开发：相机开发-预览(ArkTS)

function getPreviewOutput(cameraManager: camera.CameraManager, cameraOutputCapability: camera.CameraOutputCapability...async function startPreviewOutput(cameraManager: camera.CameraManager, previewOutput: camera.PreviewOutput...): Promise { let cameraArray: Array = cameraManager.getSupportedCameras()...support'); return; } let cameraInput: camera.CameraInput | undefined = undefined; cameraInput = cameraManager.createCameraInput...undefined'); return; } // 打开相机 await cameraInput.open(); let session: camera.PhotoSession = cameraManager.createSession

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Android Camera2 与 Camera API技术探究和RAW数据采集

核心类与组件： CameraManager：用于管理系统中的相机设备，提供了获取相机设备列表、打开指定相机以及获取相机特性等方法。...CameraCharacteristics：描述了特定相机设备所支持的各种特性，通过 CameraManager 获取。...使用步骤：获取 CameraManager：首先需要获取 CameraManager 对象，这是进行所有相机操作的前提。...获取 CameraManager：通过Context.getSystemService(Context.CAMERA_SERVICE)获取 CameraManager 实例123。...cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); try

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鸿蒙next版开发：相机开发-适配不同折叠状态的摄像头变更(ArkTS)

let cameraManager: camera.CameraManager = camera.getCameraManager();3....cameraManager.on('cameraStatus', (err: BusinessError, cameraStatusInfo: camera.CameraStatusInfo) => {...let cameraArray: Array = cameraManager.getSupportedCameras();if (cameraArray.length...cameraManager.getSupportedCameras error"); return;} // 根据当前的摄像头状态选择合适的摄像头let...console.error("No available camera found"); return;} // 更新相机会话配置let cameraInput: camera.CameraInput = cameraManager.createCameraInput

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Android app小电筒（闪光灯）Torch demo，获取手电筒状态

public class MainActivity extends AppCompatActivity { protected boolean isopent = false; private CameraManager...super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); manager = (CameraManager...MainActivity extends AppCompatActivity { protected boolean isFlashLightOn = false; private CameraManager...isFlashLightOn); } }); } //callback成员变量初始化 private CameraManager.TorchCallback...mTorchCallback = new CameraManager.TorchCallback() { @Override public void onTorchModeChanged

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这可能是全网关于Camera慢动作录像（SlowMotion）介绍最全的文章了

static boolean hasHighSpeedVideoConfigs(Context context, String cameraId) { try { CameraManager...cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); CameraCharacteristics...characteristics = cameraManager.getCameraCharacteristics(cameraId); HighSpeedVideoConfiguration...cameraManager = (CameraManager) context.getSystemService(Context.CAMERA_SERVICE); CameraCharacteristics...characteristics = cameraManager.getCameraCharacteristics(cameraId); HighSpeedVideoConfiguration

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鸿蒙next版开发：相机开发-会话管理(ArkTS)

import { camera } from '@kit.CameraKit'; // 获取相机设备let cameraManager: camera.CameraManager = camera.getCameraManager...();let cameraDevices: Array = cameraManager.getSupportedCameras(); // 创建预览输出流let...previewOutput: camera.PreviewOutput = cameraManager.createPreviewOutput(previewProfiles[0], XComponentSurfaceId...);// 创建拍照输出流let photoOutput: camera.PhotoOutput = cameraManager.createPhotoOutput(photoProfiles[0]);2...// 创建会话let photoSession: camera.PhotoSession = cameraManager.createSession(camera.SceneMode.NORMAL_PHOTO

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Android 相机方向传感,如何在Android设备中获取相机传感器尺寸？

CameraAccessException; import android.hardware.camera2.CameraCharacteristics; import android.hardware.camera2.CameraManager...; private SizeF getCameraResolution(int camNum) { SizeF size = new SizeF(0,0); CameraManager manager...= (CameraManager) getSystemService(Context.CAMERA_SERVICE); try { String[] cameraIds = manager.getCameraIdList

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Camera2 采集

ActivityCompat.requestPermissions(this, new String[]{Manifest.permission.CAMERA}, CAMERA_REQUEST_CODE); 获取目标Camera CameraManager...manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE); try { String...e.printStackTrace(); } 打开Camera: if (mCameraId == null) { return; } CameraManager...manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE); try { if (ActivityCompat.checkSelfPermission

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Android摄像头采集选Camera1还是Camera2？

初始化CameraManager在你的Activity或Fragment中，首先需要获取CameraManager的实例，这个类是用于管理设备上的相机资源：CameraManager cameraManager...= (CameraManager) getSystemService(Context.CAMERA_SERVICE);3....获取相机ID使用CameraManager的getCameraIdList()方法获取设备上所有可用的相机列表，并选择一个相机ID进行后续操作。...通常，后置摄像头的ID是"0"，前置摄像头的ID是"1"，但这不是绝对的，需要根据实际情况判断：try { String[] cameraIdList = cameraManager.getCameraIdList...打开相机使用CameraManager的openCamera()方法打开选定的相机。

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【拥抱鸿蒙】HarmonyOS NEXT实现双路预览并识别文字

```tsimport camera from '@ohos.multimedia.camera';async createDualChannelPreview(cameraManager: camera.CameraManager...(); // 获取支持的模式类型 let sceneModes: Array = cameraManager.getSupportedSceneModes...camera.Profile = previewProfiles[0]; // 创建预览流1 输出对象 let previewOutput: camera.PreviewOutput = cameraManager.createPreviewOutput...previewProfilesObj2, imageReceiverSurfaceId); // 创建cameraInput对象 let cameraInput: camera.CameraInput = cameraManager.createCameraInput...[0]); // 打开相机 await cameraInput.open(); // 会话流程 let photoSession: camera.PhotoSession = cameraManager.createSession

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高通平台，How To Expose Aux Camera ?

一、写在前面本文主要介绍在高通平台上，当设备枚举的Camera设备数超过2个的时候（我们正常的设备是前后摄2个，不过现在的手机基本都是3、4颗摄像头的了），那如何确保上层应用通过CameraManager...Conflicting Client Devices: {}) ] Allowed user IDs: 0 三、设置prop属性vendor.camera.aux.packagelist 在CameraManager.java...--------CameraManager.java public String[] getCameraIdList() { String[] cameraIds = null;...ICameraServiceListener.STATUS_ENUMERATING) continue; idCount++; } ...... } 从上面代码，我们可以看到，CameraManager

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OpenHarmony Camera源码分析

① 创建采集会话App侧先调用CameraManager的CreateCaptureSession接口。...CameraManager中有一个serviceProxy_变量，这个变量在CameraManager初始化的时候赋值。...CameraManager中通过serviceProxy_调用CreateCaptureSession，实际上是调用到HcameraService的CreateCaptureSession接口，新建了HCaptureSession...① 创建预览输出首先调用CameraManager的CreateCustomPreviewOutput接口。...①创建录像输出首先调用CameraManager的CreateVideoOutput接口，在CameraManager会调用serviceProxy_变量的CreateVideoOutput.serviceProxy

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点击加载更多

HarmonyOS 开发实践——基于CameraKit，通过avrecorder进行录像

鸿蒙版 Flutter 库 torch_light 手电筒功能深度适配：跨平台开发者的光明之路

从零开发一款相机APP 第六篇: Camera2相机打开功能实现

10行代码开发手电筒应用

鸿蒙next版开发：相机开发-元数据(ArkTS)

Android适配多摄像头

Android 的多摄像头支持

鸿蒙next版开发：相机开发-录像(ArkTS)

鸿蒙next版开发：相机开发-预览(ArkTS)

Android Camera2 与 Camera API技术探究和RAW数据采集

鸿蒙next版开发：相机开发-适配不同折叠状态的摄像头变更(ArkTS)

Android app小电筒（闪光灯）Torch demo，获取手电筒状态

这可能是全网关于Camera慢动作录像（SlowMotion）介绍最全的文章了

鸿蒙next版开发：相机开发-会话管理(ArkTS)

Android 相机方向传感,如何在Android设备中获取相机传感器尺寸？

Camera2 采集

Android摄像头采集选Camera1还是Camera2？

【拥抱鸿蒙】HarmonyOS NEXT实现双路预览并识别文字

高通平台，How To Expose Aux Camera ?

OpenHarmony Camera源码分析

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