ack-angular-webcam

ack-angular-webcam

A cross-browser Angular component, it will use the browser's native getUserMedia() implementation, otherwise an optional Flash fallback is available. Demo Page Here

BEWARE

• HTTPS or localhost required
  • Host must be localhost or an https connection
  • SAFARI seems to always always always require an https connection (no localhost)
• Internet Explorer
  • Internet Explorer is not at all supported. Sorry not sorry
  • Internet Edge is fully supported

Table of Contents

• Screenshot
• Notes
• ack-webcam Component
  • Getting Started
    • Installation
    • Importing
    • Example Usage
  • Bindings
  • Flash Fallback
  • Example and Tests
    • Locally-Test
• ack-media-devices Directive
• WoRk On ThIs PaCkAgE
• If You Like ack-webpack
• Credits
• Spec References

Screenshot

Notes

This component is based on MediaDevices and getUserMedia.js Polyfill.

Please, check original repository for clear understanding

ack-webcam Component

Getting Started

Installation

npm install ack-angular-webcam --save-dev

Importing

import { WebCamModule } from 'ack-angular-webcam';

@NgModule({
  imports: [
    BrowserModule,
    WebCamModule
  ],
  declarations: [
    AppComponent
  ],
  bootstrap: [ AppComponent ]
})
class AppModule {
}
export default AppModule;

Example Usage

app.component.ts

import { Component } from '@angular/core';
import { Http, Request } from '@angular/http';

//imported here just for type checking. Optional
import { WebCamComponent } from 'ack-angular-webcam';

const template = `
<ack-webcam
  #webcam
  [options] = "options"
  (success) = "onCamSuccess($event)"
  (catch)   = "onCamError($event)"
></ack-webcam>
<button (click)="genBase64(webcam)"> generate base64 </button>
<button (click)="genPostData(webcam)"> generate post data </button>
`

@Component({
  selector:'app-component',
  template:template
}) export class AppComponent{
  base64

  constructor(public http:Http){}

  genBase64( webcam:WebCamComponent ){
    webcam.getBase64()
    .then( base=>this.base64=base)
    .catch( e=>console.error(e) )
  }

  //get HTML5 FormData object and pretend to post to server
  genPostData( webcam:WebCamComponent ){
    webcam.captureAsFormData({fileName:'file.jpg'})
    .then( formData=>this.postFormData(formData) )
    .catch( e=>console.error(e) )
  }

  //a pretend process that would post the webcam photo taken
  postFormData(formData){
    const config = {
      method:"post",
      url:"http://www.aviorsciences.com/",
      body: formData
    }

    const request = new Request(config)

    return this.http.request( request )
  }

  onCamError(err){}

  onCamSuccess(){}
}

Bindings

ack-angular-webcam inputs and outputs

[videoDevice]          : MediaDeviceInfo
[videoDeviceId]        : string
[audioDeviceId]        : string
[mime]                 : string = 'image/jpeg'
[useParentWidthHeight] : boolean = false
[facingMode]           : "user"|"environment"|"left"|"right"|string
[reflect]:boolean      //mirror camera image

(success) = new EventEmitter()
(catch) : EventEmitter<Error> = new EventEmitter()

[(error)] : Error

[options]:{
  video    : boolean | MediaTrackConstraints
  audio    : boolean
  width    : number
  height   : number
  fallback : boolean
  fallbackSrc: string
  fallbackMode: string
  fallbackQuality: number
}

Binding Resource Links

• MediaDeviceInfo
• MediaTrackConstraints

Tested for tablet (Android 4.4.2 GT-N5110) and phone (Android 4.1.2 GT-I8268)

Flash Fallback

Quite Simple: You must indicate the URL of the swf fallback file named jscam_canvas_only.swf

This file is included and located at ack-angular-webcam/jscam_canvas_only.swf

Example and Tests

You can check example using following npm commands:

npm run watch

Locally Test

Type the following commands in a command prompt terminal

Step 1 of 4

git clone https://github.com/ackerapple/ack-angular-webcam -b master

Step 2 of 4

cd ack-angular-webcam

Step 3 of 4

npm install

Step 4 of 4

npm run watch

After step 4, a web browser should auto open a demo page and any code changes you perform to ack-angular-webcam will cause an auto-refresh of browser

ack-media-devices Directive

Get listing of users media devices

<ack-media-devices
  [(array)]="devices"
  [(error)]="deviceListingError"
></ack-media-devices>

Bindings

[(array)]:MediaDeviceInfo[] = []
[(error)]:Error
[(videoInputs)]:MediaDeviceInfo[]
[(audioInputs)]:MediaDeviceInfo[]
[(audioOutputs)]:MediaDeviceInfo[]

(catch):EventEmitter<Error> = new EventEmitter()

WoRk On ThIs PaCkAgE

Nobodies perfect

Source files are on not the default github branch

• Source files here

Process to pull request

• Make changes in master branch
• Change package version number based on impact of change 0.0.0
• npm run build

If You Like ack-webpack

You might also want to give these packages a try

• ack-angular
• ack-angular-fx
• ack-css-boot

Credits

• pre-fork package credits
• Fork from : Artur Basak
• Forked by : Acker Apple

Spec References

• MediaDevices
• getUserMedia()
• WebRTC 1.0