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camera-settings

v0.0.7

Published

Modify the configuration of the usb camera, support windows and linux, support electron

Downloads

14

Readme

camera-settings npm

English | 简体中文

获取和修改 usb 摄像头的配置,支持 Windows 和 Linux。一般用于 Electron 应用。

安装

npm install camera-settings

使用

import { CameraSettings } from "camera-settings";

(async () => {
  const cs = new CameraSettings(0);
  await cs.open();

  // 获取摄像头配置
  const settings = await cs.getSettings();

  // 设置摄像头配置,如白平衡
  await cs.setSettings([{ prop: "WhiteBalance", val: 2900, isAuto: true }]);

  // 获取所有可选分辨率
  const resolutions = await cs.getResolutions();

  await cs.close();
})();

API

CameraSettings

constructor(cameraId: number | string)

  • cameraId 摄像头索引,从 0 开始,或者摄像头名称,如 HD USB Camera

open(): Promise<void>

做一些准备工作,比如查找设备。

close(): Promise<void>

清理缓存,释放资源。

getSettings(): Promise<CameraSetting[]>

获取摄像头配置。

interface CameraSettingInfo extends CameraSettingSetInfo {
  prop: TagCameraControlProperty | TagVideoProcAmpProperty;
  val: number;
  isAuto?: boolean;
  min: number;
  max: number;
  step: number;
  /** rangeFlags & 1 Auto; rangeFlags & 2 Auto Manual */
  rangeFlags: number;
  /** 默认配置 */
  def: number;
  ctrlType: "video" | "camera";
}

setSettings(settings: CameraSetting[]): Promise<void>

设置摄像头配置。

interface CameraSetting {
  prop: TagCameraControlProperty | TagVideoProcAmpProperty;
  val: number;
  isAuto?: boolean;
}

getResolutions(): Promise<Resolution[]>

获取所有可选分辨率。

interface Resolution {
  width: number;
  height: number;
  /** mjpg, yuy2, yuyv... */
  type: string;
}