Add barcode-detector-api-polyfill dependency and update environment variable declarations in SvelteKit project

2026-02-17 14:58:53 -06:00
parent cff20a652a
commit 9022114c8d
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+MIT License
+
+Copyright (c) 2018 ZXing for JS
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
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+[<img align="right" src="https://raw.github.com/wiki/zxing/zxing/zxing-logo.png"/>][1]
+
+# ZXing
+
+## What is ZXing?
+
+> [ZXing][1] ("zebra crossing") is an open-source, multi-format 1D/2D barcode image processing library implemented in Java, with ports to other languages.
+
+## Browser layer
+
+This is a library for enabling you to use with ease the ZXing for JS library on the browser. It includes features like scanning an `<img>` element, as well as `<video>`, images and videos from URLs and also it helps handling webcam use for scanning directly from a hardware connected camera. It does not offers support to any physical barcode readers or things like that.
+
+See @zxing-js/library for the complete API including decoding classes and use outside of the browser.
+
+See @zxing-js/ngx-scanner for using the library in Angular.
+
+See @zxing-js/text-encoding for special character support in barcodes.
+
+## Usage (how to use)
+
+Installation, import into app and usage examples in this section.
+
+### Instalation
+
+Install via yarn, npm, etc:
+
+```bash
+yarn add @zxing/browser
+```
+
+```bash
+npm i @zxing/browser
+```
+
+Or just import an script tag from your favorite NPM registry connected CDN:
+
+```html
+<!-- loading ZXingBrowser via UNPKG -->
+<script type="text/javascript" src="https://unpkg.com/@zxing/browser@latest"></script>
+```
+
+### How to import into your app
+
+#### ES6 modules
+
+```html
+<script type="module">
+  import { BrowserQRCodeReader } from '@zxing/browser';
+
+  const codeReader = new BrowserQRCodeReader();
+
+  // do something with codeReader...
+
+</script>
+```
+
+##### Or asynchronously
+
+```html
+<script type="module">
+  import('@zxing/browser').then({ BrowserQRCodeReader } => {
+
+    const codeReader = new BrowserQRCodeReader();
+
+    // do something with codeReader...
+
+  });
+</script>
+```
+
+#### With AMD
+
+```html
+<script type="text/javascript" src="https://unpkg.com/requirejs"></script>
+<script type="text/javascript">
+  require(['@zxing/browser'], ZXingBrowser => {
+
+    const codeReader = new ZXingBrowser.BrowserQRCodeReader();
+
+    // do something with codeReader...
+
+  });
+</script>
+```
+
+#### With UMD
+
+```html
+<script type="text/javascript" src="https://unpkg.com/@zxing/browser@latest"></script>
+<script type="text/javascript">
+  window.addEventListener('load', () => {
+
+    const codeReader = new ZXingBrowser.BrowserQRCodeReader();
+
+    // do something with codeReader...
+
+  });
+</script>
+```
+
+### Using the API
+
+Examples here will assume you already imported ZXingBrowser into your app.
+
+#### Scan from webcam
+
+Continuous scan (runs and decodes barcodes until you stop it):
+
+```typescript
+const codeReader = new BrowserQRCodeReader();
+
+const videoInputDevices = await ZXingBrowser.BrowserCodeReader.listVideoInputDevices();
+
+// choose your media device (webcam, frontal camera, back camera, etc.)
+const selectedDeviceId = videoInputDevices[0].deviceId;
+
+console.log(`Started decode from camera with id ${selectedDeviceId}`);
+
+const previewElem = document.querySelector('#test-area-qr-code-webcam > video');
+
+// you can use the controls to stop() the scan or switchTorch() if available
+const controls = await codeReader.decodeFromVideoDevice(selectedDeviceId, previewElem, (result, error, controls) => {
+  // use the result and error values to choose your actions
+  // you can also use controls API in this scope like the controls
+  // returned from the method.
+});
+
+// stops scanning after 20 seconds
+setTimeout(() => controls.stop(), 20000);
+```
+
+You can also use `decodeFromConstraints` instead of `decodeFromVideoDevice` to pass your own constraints for the method choose the device you want directly from your constraints.
+
+Also, `decodeOnceFromVideoDevice` is available too so you can `await` the method until it detects the first barcode.
+
+### Scan from video or image URL
+
+```javascript
+const codeReader = new ZXingBrowser.BrowserQRCodeReader();
+
+const source = 'https://my-image-or-video/01.png';
+const resultImage = await codeReader.decodeFromImageUrl(source);
+// or use decodeFromVideoUrl for videos
+const resultVideo = await codeReader.decodeFromVideoUrl(source);
+```
+
+### Scan from video or image HTML element
+
+```javascript
+const codeReader = new ZXingBrowser.BrowserQRCodeReader();
+
+const sourceElem = document.querySelector('#my-image-id');
+const resultImage = await codeReader.decodeFromImageElement(sourceElem);
+// or use decodeFromVideoElement for videos
+const resultVideo = await codeReader.decodeFromVideoElement(sourceElem);
+```
+
+### Other scan methods
+
+There's still other scan methods you can use for decoding barcodes in the browser with `BrowserCodeReader` family, all of those and previous listed in here:
+
+- `decodeFromCanvas`
+- `decodeFromImageElement`
+- `decodeFromImageUrl`
+- `decodeFromConstraints`
+- `decodeFromStream`
+- `decodeFromVideoDevice`
+- `decodeFromVideoElement`
+- `decodeFromVideoUrl`
+- `decodeOnceFromConstraints`
+- `decodeOnceFromStream`
+- `decodeOnceFromVideoDevice`
+- `decodeOnceFromVideoElement`
+- `decodeOnceFromVideoUrl`
+
+That's it for now.
+
+### List of browser readers
+
+- `BrowserAztecCodeReader`
+- `BrowserCodeReader` (abstract, needs to be extend for use)
+- `BrowserDatamatrixCodeReader`
+- `BrowserMultiFormatOneDReader`
+- `BrowserMultiFormatReader` (2D + 1D)
+- `BrowserPDF417CodeReader`
+- `BrowserQRCodeReader`
+
+### Customize `BrowserCodeReader` options
+
+You can also customize some options on the code reader at instantiation time. More docs comming soon.
+
+---
+
+[![Bless](https://cdn.rawgit.com/LunaGao/BlessYourCodeTag/master/tags/alpaca.svg)](http://lunagao.github.io/BlessYourCodeTag/)
+
+[0]: https://www.npmjs.com/package/@zxing/browser
+[1]: https://github.com/zxing/zxing
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+import { Exception, Result } from '@zxing/library';
+import { IScannerControls } from './IScannerControls';
+/**
+ * Callback format for continuous decode scan.
+ */
+export declare type DecodeContinuouslyCallback = (result: Result | undefined, error: Exception | undefined, controls: IScannerControls) => void;
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+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=DecodeContinuouslyCallback.js.map
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+{"version":3,"file":"DecodeContinuouslyCallback.js","sourceRoot":"","sources":["../../../src/common/DecodeContinuouslyCallback.ts"],"names":[],"mappings":""}
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+import { LuminanceSource } from '@zxing/library';
+export declare class HTMLCanvasElementLuminanceSource extends LuminanceSource {
+    private canvas;
+    private static DEGREE_TO_RADIANS;
+    private static makeBufferFromCanvasImageData;
+    private static toGrayscaleBuffer;
+    private buffer;
+    private tempCanvasElement?;
+    constructor(canvas: HTMLCanvasElement);
+    getRow(y: number, row: Uint8ClampedArray): Uint8ClampedArray;
+    getMatrix(): Uint8ClampedArray;
+    isCropSupported(): boolean;
+    crop(left: number, top: number, width: number, height: number): LuminanceSource;
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    isRotateSupported(): boolean;
+    rotateCounterClockwise(): LuminanceSource;
+    rotateCounterClockwise45(): LuminanceSource;
+    invert(): LuminanceSource;
+    private getTempCanvasElement;
+    private rotate;
+}
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+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.HTMLCanvasElementLuminanceSource = void 0;
+var library_1 = require("@zxing/library");
+/**/
+var HTMLCanvasElementLuminanceSource = /** @class */ (function (_super) {
+    __extends(HTMLCanvasElementLuminanceSource, _super);
+    function HTMLCanvasElementLuminanceSource(canvas) {
+        var _this = _super.call(this, canvas.width, canvas.height) || this;
+        _this.canvas = canvas;
+        _this.tempCanvasElement = null;
+        _this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(canvas);
+        return _this;
+    }
+    HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData = function (canvas) {
+        var canvasCtx;
+        try {
+            canvasCtx = canvas.getContext('2d', { willReadFrequently: true });
+        }
+        catch (e) {
+            canvasCtx = canvas.getContext('2d');
+        }
+        if (!canvasCtx) {
+            throw new Error('Couldn\'t get canvas context.');
+        }
+        var imageData = canvasCtx.getImageData(0, 0, canvas.width, canvas.height);
+        return HTMLCanvasElementLuminanceSource.toGrayscaleBuffer(imageData.data, canvas.width, canvas.height);
+    };
+    HTMLCanvasElementLuminanceSource.toGrayscaleBuffer = function (imageBuffer, width, height) {
+        var grayscaleBuffer = new Uint8ClampedArray(width * height);
+        for (var i = 0, j = 0, length_1 = imageBuffer.length; i < length_1; i += 4, j++) {
+            var gray = void 0;
+            var alpha = imageBuffer[i + 3];
+            // The color of fully-transparent pixels is irrelevant. They are often, technically, fully-transparent
+            // black (0 alpha, and then 0 RGB). They are often used, of course as the "white" area in a
+            // barcode image. Force any such pixel to be white:
+            if (alpha === 0) {
+                gray = 0xFF;
+            }
+            else {
+                var pixelR = imageBuffer[i];
+                var pixelG = imageBuffer[i + 1];
+                var pixelB = imageBuffer[i + 2];
+                // .299R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC),
+                // (306*R) >> 10 is approximately equal to R*0.299, and so on.
+                // 0x200 >> 10 is 0.5, it implements rounding.
+                // tslint:disable-next-line:no-bitwise
+                gray = (306 * pixelR + 601 * pixelG + 117 * pixelB + 0x200) >> 10;
+            }
+            grayscaleBuffer[j] = gray;
+        }
+        return grayscaleBuffer;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.getRow = function (y /*int*/, row) {
+        if (y < 0 || y >= this.getHeight()) {
+            throw new library_1.IllegalArgumentException('Requested row is outside the image: ' + y);
+        }
+        var width = this.getWidth();
+        var start = y * width;
+        if (row === null) {
+            row = this.buffer.slice(start, start + width);
+        }
+        else {
+            if (row.length < width) {
+                row = new Uint8ClampedArray(width);
+            }
+            // The underlying raster of image consists of bytes with the luminance values
+            // TODO: can avoid set/slice?
+            row.set(this.buffer.slice(start, start + width));
+        }
+        return row;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.getMatrix = function () {
+        return this.buffer;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.isCropSupported = function () {
+        return true;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.crop = function (left /*int*/, top /*int*/, width /*int*/, height /*int*/) {
+        _super.prototype.crop.call(this, left, top, width, height);
+        return this;
+    };
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    HTMLCanvasElementLuminanceSource.prototype.isRotateSupported = function () {
+        return true;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.rotateCounterClockwise = function () {
+        this.rotate(-90);
+        return this;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.rotateCounterClockwise45 = function () {
+        this.rotate(-45);
+        return this;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.invert = function () {
+        return new library_1.InvertedLuminanceSource(this);
+    };
+    HTMLCanvasElementLuminanceSource.prototype.getTempCanvasElement = function () {
+        if (null === this.tempCanvasElement) {
+            var tempCanvasElement = this.canvas.ownerDocument.createElement('canvas');
+            tempCanvasElement.width = this.canvas.width;
+            tempCanvasElement.height = this.canvas.height;
+            this.tempCanvasElement = tempCanvasElement;
+        }
+        return this.tempCanvasElement;
+    };
+    HTMLCanvasElementLuminanceSource.prototype.rotate = function (angle) {
+        var tempCanvasElement = this.getTempCanvasElement();
+        if (!tempCanvasElement) {
+            throw new Error('Could not create a Canvas element.');
+        }
+        var angleRadians = angle * HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS;
+        // Calculate and set new dimensions for temp canvas
+        var width = this.canvas.width;
+        var height = this.canvas.height;
+        var newWidth = Math.ceil(Math.abs(Math.cos(angleRadians)) * width + Math.abs(Math.sin(angleRadians)) * height);
+        var newHeight = Math.ceil(Math.abs(Math.sin(angleRadians)) * width + Math.abs(Math.cos(angleRadians)) * height);
+        tempCanvasElement.width = newWidth;
+        tempCanvasElement.height = newHeight;
+        var tempContext = tempCanvasElement.getContext('2d');
+        if (!tempContext) {
+            throw new Error('Could not create a Canvas Context element.');
+        }
+        // Draw at center of temp canvas to prevent clipping of image data
+        tempContext.translate(newWidth / 2, newHeight / 2);
+        tempContext.rotate(angleRadians);
+        tempContext.drawImage(this.canvas, width / -2, height / -2);
+        this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(tempCanvasElement);
+        return this;
+    };
+    HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS = Math.PI / 180;
+    return HTMLCanvasElementLuminanceSource;
+}(library_1.LuminanceSource));
+exports.HTMLCanvasElementLuminanceSource = HTMLCanvasElementLuminanceSource;
+//# sourceMappingURL=HTMLCanvasElementLuminanceSource.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"HTMLCanvasElementLuminanceSource.js","sourceRoot":"","sources":["../../../src/common/HTMLCanvasElementLuminanceSource.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAIwB;AAExB,IAAI;AACJ;IAAsD,oDAAe;IA+CnE,0CAA2B,MAAyB;QAApD,YACE,kBAAM,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,SAEnC;QAH0B,YAAM,GAAN,MAAM,CAAmB;QAF5C,uBAAiB,GAAuB,IAAI,CAAC;QAInD,KAAI,CAAC,MAAM,GAAG,gCAAgC,CAAC,6BAA6B,CAAC,MAAM,CAAC,CAAC;;IACvF,CAAC;IA9Cc,8DAA6B,GAA5C,UAA6C,MAAyB;QACpE,IAAI,SAAS,CAAC;QAEd,IAAI;YACF,SAAS,GAAG,MAAM,CAAC,UAAU,CAAC,IAAI,EAAE,EAAE,kBAAkB,EAAE,IAAI,EAAE,CAAC,CAAC;SACnE;QAAC,OAAO,CAAC,EAAE;YACV,SAAS,GAAG,MAAM,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC;SACrC;QAED,IAAI,CAAC,SAAS,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,+BAA+B,CAAC,CAAC;SAAE;QACrE,IAAM,SAAS,GAAG,SAAS,CAAC,YAAY,CAAC,CAAC,EAAE,CAAC,EAAE,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,CAAC;QAC5E,OAAO,gCAAgC,CAAC,iBAAiB,CAAC,SAAS,CAAC,IAAI,EAAE,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,CAAC;IACzG,CAAC;IAEc,kDAAiB,GAAhC,UAAiC,WAA8B,EAAE,KAAa,EAAE,MAAc;QAC5F,IAAM,eAAe,GAAG,IAAI,iBAAiB,CAAC,KAAK,GAAG,MAAM,CAAC,CAAC;QAC9D,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,QAAM,GAAG,WAAW,CAAC,MAAM,EAAE,CAAC,GAAG,QAAM,EAAE,CAAC,IAAI,CAAC,EAAE,CAAC,EAAE,EAAE;YAC3E,IAAI,IAAI,SAAA,CAAC;YACT,IAAM,KAAK,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;YACjC,sGAAsG;YACtG,2FAA2F;YAC3F,mDAAmD;YACnD,IAAI,KAAK,KAAK,CAAC,EAAE;gBACf,IAAI,GAAG,IAAI,CAAC;aACb;iBAAM;gBACL,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,CAAC,CAAC;gBAC9B,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;gBAClC,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;gBAClC,sDAAsD;gBACtD,8DAA8D;gBAC9D,8CAA8C;gBAC9C,sCAAsC;gBACtC,IAAI,GAAG,CAAC,GAAG,GAAG,MAAM,GAAG,GAAG,GAAG,MAAM,GAAG,GAAG,GAAG,MAAM,GAAG,KAAK,CAAC,IAAI,EAAE,CAAC;aACnE;YACD,eAAe,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC;SAC3B;QACD,OAAO,eAAe,CAAC;IACzB,CAAC;IAWM,iDAAM,GAAb,UAAc,CAAS,CAAC,OAAO,EAAE,GAAsB;QACrD,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,IAAI,IAAI,CAAC,SAAS,EAAE,EAAE;YAClC,MAAM,IAAI,kCAAwB,CAAC,sCAAsC,GAAG,CAAC,CAAC,CAAC;SAChF;QACD,IAAM,KAAK,GAAmB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAC9C,IAAM,KAAK,GAAG,CAAC,GAAG,KAAK,CAAC;QACxB,IAAI,GAAG,KAAK,IAAI,EAAE;YAChB,GAAG,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,GAAG,KAAK,CAAC,CAAC;SAC/C;aAAM;YACL,IAAI,GAAG,CAAC,MAAM,GAAG,KAAK,EAAE;gBACtB,GAAG,GAAG,IAAI,iBAAiB,CAAC,KAAK,CAAC,CAAC;aACpC;YACD,6EAA6E;YAC7E,6BAA6B;YAC7B,GAAG,CAAC,GAAG,CAAC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,GAAG,KAAK,CAAC,CAAC,CAAC;SAClD;QAED,OAAO,GAAG,CAAC;IACb,CAAC;IAEM,oDAAS,GAAhB;QACE,OAAO,IAAI,CAAC,MAAM,CAAC;IACrB,CAAC;IAEM,0DAAe,GAAtB;QACE,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,+CAAI,GAAX,UACE,IAAY,CAAC,OAAO,EACpB,GAAW,CAAC,OAAO,EACnB,KAAa,CAAC,OAAO,EACrB,MAAc,CAAC,OAAO;QAEtB,iBAAM,IAAI,YAAC,IAAI,EAAE,GAAG,EAAE,KAAK,EAAE,MAAM,CAAC,CAAC;QACrC,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;;OAIG;IACI,4DAAiB,GAAxB;QACE,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,iEAAsB,GAA7B;QACE,IAAI,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC;QACjB,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,mEAAwB,GAA/B;QACE,IAAI,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC;QACjB,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,iDAAM,GAAb;QACE,OAAO,IAAI,iCAAuB,CAAC,IAAI,CAAC,CAAC;IAC3C,CAAC;IAEO,+DAAoB,GAA5B;QACE,IAAI,IAAI,KAAK,IAAI,CAAC,iBAAiB,EAAE;YACnC,IAAM,iBAAiB,GAAG,IAAI,CAAC,MAAM,CAAC,aAAa,CAAC,aAAa,CAAC,QAAQ,CAAC,CAAC;YAC5E,iBAAiB,CAAC,KAAK,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC;YAC5C,iBAAiB,CAAC,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC;YAC9C,IAAI,CAAC,iBAAiB,GAAG,iBAAiB,CAAC;SAC5C;QAED,OAAO,IAAI,CAAC,iBAAiB,CAAC;IAChC,CAAC;IAEO,iDAAM,GAAd,UAAe,KAAa;QAC1B,IAAM,iBAAiB,GAAG,IAAI,CAAC,oBAAoB,EAAE,CAAC;QACtD,IAAI,CAAC,iBAAiB,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,oCAAoC,CAAC,CAAC;SAAE;QAClF,IAAM,YAAY,GAAG,KAAK,GAAG,gCAAgC,CAAC,iBAAiB,CAAC;QAEhF,mDAAmD;QACnD,IAAM,KAAK,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC;QAChC,IAAM,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC;QAClC,IAAM,QAAQ,GAAG,IAAI,CAAC,IAAI,CACxB,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,MAAM,CACrF,CAAC;QACF,IAAM,SAAS,GAAG,IAAI,CAAC,IAAI,CACzB,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,MAAM,CACrF,CAAC;QACF,iBAAiB,CAAC,KAAK,GAAG,QAAQ,CAAC;QACnC,iBAAiB,CAAC,MAAM,GAAG,SAAS,CAAC;QAErC,IAAM,WAAW,GAAG,iBAAiB,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC;QACvD,IAAI,CAAC,WAAW,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,4CAA4C,CAAC,CAAC;SAAE;QAEpF,kEAAkE;QAClE,WAAW,CAAC,SAAS,CAAC,QAAQ,GAAG,CAAC,EAAE,SAAS,GAAG,CAAC,CAAC,CAAC;QACnD,WAAW,CAAC,MAAM,CAAC,YAAY,CAAC,CAAC;QACjC,WAAW,CAAC,SAAS,CAAC,IAAI,CAAC,MAAM,EAAE,KAAK,GAAG,CAAC,CAAC,EAAE,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC;QAC5D,IAAI,CAAC,MAAM,GAAG,gCAAgC,CAAC,6BAA6B,CAAC,iBAAiB,CAAC,CAAC;QAChG,OAAO,IAAI,CAAC;IACd,CAAC;IApJc,kDAAiB,GAAG,IAAI,CAAC,EAAE,GAAG,GAAG,CAAC;IAqJnD,uCAAC;CAAA,AAvJD,CAAsD,yBAAe,GAuJpE;AAvJY,4EAAgC"}
@@ -0,0 +1,4 @@
+/**
+ * HTML elements that can be decoded.
+ */
+export declare type HTMLVisualMediaElement = HTMLVideoElement | HTMLImageElement;
@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=HTMLVisualMediaElement.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"HTMLVisualMediaElement.js","sourceRoot":"","sources":["../../../src/common/HTMLVisualMediaElement.ts"],"names":[],"mappings":""}
@@ -0,0 +1,30 @@
+export interface IScannerControls {
+    /**
+     * Stops the scan process loop.
+     */
+    stop: () => void;
+    /**
+     * @experimental This is highly unstable and Torch support is not ready on browsers. Use at YOUR OWN risk.
+     */
+    switchTorch?: (onOff: boolean) => Promise<void>;
+    /**
+     * Allows to apply constraints to all tracks or filtered tracks in the stream.
+     * @experimental
+     */
+    streamVideoConstraintsApply?: (constraints: MediaTrackConstraints, trackFilter?: (track: MediaStreamTrack) => MediaStreamTrack[]) => void;
+    /**
+     * Get the desired track constraints.
+     * @experimental
+     */
+    streamVideoConstraintsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackConstraints;
+    /**
+     * Get the desired track settings.
+     * @experimental
+     */
+    streamVideoSettingsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackSettings;
+    /**
+     * Get the desired track capabilities.
+     * @experimental
+     */
+    streamVideoCapabilitiesGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackCapabilities;
+}
@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=IScannerControls.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"IScannerControls.js","sourceRoot":"","sources":["../../../src/common/IScannerControls.ts"],"names":[],"mappings":""}
@@ -0,0 +1,8 @@
+/**
+ * If navigator is present.
+ */
+export declare function hasNavigator(): boolean;
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+export declare function canEnumerateDevices(): boolean;
@@ -0,0 +1,24 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.canEnumerateDevices = exports.hasNavigator = void 0;
+/**
+ * If navigator is present.
+ */
+function hasNavigator() {
+    return typeof navigator !== 'undefined';
+}
+exports.hasNavigator = hasNavigator;
+/**
+ * If mediaDevices under navigator is supported.
+ */
+function isMediaDevicesSupported() {
+    return hasNavigator() && !!navigator.mediaDevices;
+}
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+function canEnumerateDevices() {
+    return !!(isMediaDevicesSupported() && navigator.mediaDevices.enumerateDevices);
+}
+exports.canEnumerateDevices = canEnumerateDevices;
+//# sourceMappingURL=navigator-utils.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"navigator-utils.js","sourceRoot":"","sources":["../../../src/common/navigator-utils.ts"],"names":[],"mappings":";;;AAAA;;GAEG;AACH,SAAgB,YAAY;IAC1B,OAAO,OAAO,SAAS,KAAK,WAAW,CAAC;AAC1C,CAAC;AAFD,oCAEC;AACD;;GAEG;AACH,SAAS,uBAAuB;IAC9B,OAAO,YAAY,EAAE,IAAI,CAAC,CAAC,SAAS,CAAC,YAAY,CAAC;AACpD,CAAC;AACD;;GAEG;AACH,SAAgB,mBAAmB;IACjC,OAAO,CAAC,CAAC,CAAC,uBAAuB,EAAE,IAAI,SAAS,CAAC,YAAY,CAAC,gBAAgB,CAAC,CAAC;AAClF,CAAC;AAFD,kDAEC"}
@@ -0,0 +1,14 @@
+export { BarcodeFormat } from '@zxing/library';
+export * from './common/HTMLCanvasElementLuminanceSource';
+export * from './common/HTMLVisualMediaElement';
+export * from './common/IScannerControls';
+export * from './readers/BrowserAztecCodeReader';
+export * from './readers/BrowserMultiFormatOneDReader';
+export * from './readers/BrowserCodeReader';
+export * from './readers/BrowserDatamatrixCodeReader';
+export * from './readers/BrowserMultiFormatReader';
+export * from './readers/BrowserPDF417Reader';
+export * from './readers/BrowserQRCodeReader';
+export * from './readers/IBrowserCodeReaderOptions';
+export * from './writers/BrowserCodeSvgWriter';
+export * from './writers/BrowserQRCodeSvgWriter';
@@ -0,0 +1,34 @@
+"use strict";
+// public API
+var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    Object.defineProperty(o, k2, { enumerable: true, get: function() { return m[k]; } });
+}) : (function(o, m, k, k2) {
+    if (k2 === undefined) k2 = k;
+    o[k2] = m[k];
+}));
+var __exportStar = (this && this.__exportStar) || function(m, exports) {
+    for (var p in m) if (p !== "default" && !Object.prototype.hasOwnProperty.call(exports, p)) __createBinding(exports, m, p);
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BarcodeFormat = void 0;
+// core
+var library_1 = require("@zxing/library");
+Object.defineProperty(exports, "BarcodeFormat", { enumerable: true, get: function () { return library_1.BarcodeFormat; } });
+// common
+__exportStar(require("./common/HTMLCanvasElementLuminanceSource"), exports);
+__exportStar(require("./common/HTMLVisualMediaElement"), exports);
+__exportStar(require("./common/IScannerControls"), exports);
+// readers
+__exportStar(require("./readers/BrowserAztecCodeReader"), exports);
+__exportStar(require("./readers/BrowserMultiFormatOneDReader"), exports);
+__exportStar(require("./readers/BrowserCodeReader"), exports);
+__exportStar(require("./readers/BrowserDatamatrixCodeReader"), exports);
+__exportStar(require("./readers/BrowserMultiFormatReader"), exports);
+__exportStar(require("./readers/BrowserPDF417Reader"), exports);
+__exportStar(require("./readers/BrowserQRCodeReader"), exports);
+__exportStar(require("./readers/IBrowserCodeReaderOptions"), exports);
+// writers
+__exportStar(require("./writers/BrowserCodeSvgWriter"), exports);
+__exportStar(require("./writers/BrowserQRCodeSvgWriter"), exports);
+//# sourceMappingURL=index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA,aAAa;;;;;;;;;;;;;AAEb,OAAO;AACP,0CAA+C;AAAtC,wGAAA,aAAa,OAAA;AAEtB,SAAS;AACT,4EAA0D;AAC1D,kEAAgD;AAChD,4DAA0C;AAE1C,UAAU;AACV,mEAAiD;AACjD,yEAAuD;AACvD,8DAA4C;AAC5C,wEAAsD;AACtD,qEAAmD;AACnD,gEAA8C;AAC9C,gEAA8C;AAC9C,sEAAoD;AAEpD,UAAU;AACV,iEAA+C;AAC/C,mEAAiD"}
@@ -0,0 +1,15 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Aztec Code reader to use from browser.
+ *
+ * @class BrowserAztecCodeReader
+ * @extends {BrowserCodeReader}
+ */
+export declare class BrowserAztecCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserAztecCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,38 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserAztecCodeReader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+/**
+ * Aztec Code reader to use from browser.
+ *
+ * @class BrowserAztecCodeReader
+ * @extends {BrowserCodeReader}
+ */
+var BrowserAztecCodeReader = /** @class */ (function (_super) {
+    __extends(BrowserAztecCodeReader, _super);
+    /**
+     * Creates an instance of BrowserAztecCodeReader.
+     */
+    function BrowserAztecCodeReader(hints, options) {
+        return _super.call(this, new library_1.AztecCodeReader(), hints, options) || this;
+    }
+    return BrowserAztecCodeReader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserAztecCodeReader = BrowserAztecCodeReader;
+//# sourceMappingURL=BrowserAztecCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserAztecCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserAztecCodeReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAiE;AACjE,yDAAwD;AAGxD;;;;;GAKG;AACH;IAA4C,0CAAiB;IAC3D;;OAEG;IACH,gCACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,yBAAe,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC9C,CAAC;IACH,6BAAC;AAAD,CAAC,AAVD,CAA4C,qCAAiB,GAU5D;AAVY,wDAAsB"}
@@ -0,0 +1,283 @@
+import { BarcodeFormat, BinaryBitmap, DecodeHintType, Reader, Result } from '@zxing/library';
+import { DecodeContinuouslyCallback } from '../common/DecodeContinuouslyCallback';
+import { HTMLVisualMediaElement } from '../common/HTMLVisualMediaElement';
+import { IScannerControls } from '../common/IScannerControls';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Base class for browser code reader.
+ */
+export declare class BrowserCodeReader {
+    protected readonly reader: Reader;
+    hints: Map<DecodeHintType, any>;
+    /**
+     * Allows to change the possible formats the decoder should
+     * search for while scanning some image. Useful for changing
+     * the possible formats during BrowserCodeReader::scan.
+     */
+    set possibleFormats(formats: BarcodeFormat[]);
+    /**
+     * Defines what the videoElement src will be.
+     *
+     * @param videoElement
+     * @param stream The stream to be added as a source.
+     */
+    static addVideoSource(videoElement: HTMLVideoElement, stream: MediaStream): void;
+    /**
+     * Enables or disables the torch in a media stream.
+     *
+     * @experimental This doesn't work across all browsers and is still a Draft.
+     */
+    static mediaStreamSetTorch(track: MediaStreamTrack, onOff: boolean): Promise<void>;
+    /**
+     * Checks if the stream has torch support.
+     */
+    static mediaStreamIsTorchCompatible(params: MediaStream): boolean;
+    /**
+     *
+     * @param track The media stream track that will be checked for compatibility.
+     */
+    static mediaStreamIsTorchCompatibleTrack(track: MediaStreamTrack): boolean;
+    /**
+     * Checks if the given video element is currently playing.
+     */
+    static isVideoPlaying(video: HTMLVideoElement): boolean;
+    /**
+     * Searches and validates a media element.
+     */
+    static getMediaElement(mediaElementId: string, type: string): HTMLVisualMediaElement;
+    /**
+     * Receives a source and makes sure to return a Video Element from it or fail.
+     */
+    static createVideoElement(videoThingy?: HTMLVideoElement | string): HTMLVideoElement;
+    /**
+     * Receives a source and makes sure to return an Image Element from it or fail.
+     */
+    static prepareImageElement(imageSource?: HTMLImageElement | string): HTMLImageElement;
+    /**
+     * Sets a HTMLVideoElement for scanning or creates a new one.
+     *
+     * @param videoElem The HTMLVideoElement to be set.
+     */
+    static prepareVideoElement(videoElem?: HTMLVideoElement | string): HTMLVideoElement;
+    /**
+     * Checks if and HTML image is loaded.
+     */
+    static isImageLoaded(img: HTMLImageElement): boolean;
+    /**
+     * Creates a binaryBitmap based in a canvas.
+     *
+     * @param canvas HTML canvas element containing the image source draw.
+     */
+    static createBinaryBitmapFromCanvas(canvas: HTMLCanvasElement): BinaryBitmap;
+    /**
+     * Overwriting this allows you to manipulate the snapshot image in anyway you want before decode.
+     */
+    static drawImageOnCanvas(canvasElementContext: CanvasRenderingContext2D, srcElement: HTMLVisualMediaElement): void;
+    static getMediaElementDimensions(mediaElement: HTMLVisualMediaElement): {
+        height: number;
+        width: number;
+    };
+    /**
+     * 🖌 Prepares the canvas for capture and scan frames.
+     */
+    static createCaptureCanvas(mediaElement: HTMLVisualMediaElement): HTMLCanvasElement;
+    /**
+     * Just tries to play the video and logs any errors.
+     * The play call is only made is the video is not already playing.
+     */
+    static tryPlayVideo(videoElement: HTMLVideoElement): Promise<boolean>;
+    /**
+     * Creates a canvas and draws the current image frame from the media element on it.
+     *
+     * @param mediaElement HTML media element to extract an image frame from.
+     */
+    static createCanvasFromMediaElement(mediaElement: HTMLVisualMediaElement): HTMLCanvasElement;
+    /**
+     * Creates a binaryBitmap based in some image source.
+     *
+     * @param mediaElement HTML element containing drawable image source.
+     */
+    static createBinaryBitmapFromMediaElem(mediaElement: HTMLVisualMediaElement): BinaryBitmap;
+    static destroyImageElement(imageElement: HTMLImageElement): void;
+    /**
+     * Lists all the available video input devices.
+     */
+    static listVideoInputDevices(): Promise<MediaDeviceInfo[]>;
+    /**
+     * Let's you find a device using it's Id.
+     */
+    static findDeviceById(deviceId: string): Promise<MediaDeviceInfo | undefined>;
+    /**
+     * Unbinds a HTML video src property.
+     */
+    static cleanVideoSource(videoElement: HTMLVideoElement): void;
+    /**
+     * Stops all media streams that are created.
+     */
+    static releaseAllStreams(): void;
+    /**
+     * Waits for a video to load and then hits play on it.
+     * To accomplish that, it binds listeners and callbacks to the video element.
+     *
+     * @param element The video element.
+     * @param callbackFn Callback invoked when the video is played.
+     */
+    protected static playVideoOnLoadAsync(element: HTMLVideoElement, timeout: number): Promise<boolean>;
+    /**
+     * Sets the new stream and request a new decoding-with-delay.
+     *
+     * @param stream The stream to be shown in the video element.
+     * @param decodeFn A callback for the decode method.
+     */
+    protected static attachStreamToVideo(stream: MediaStream, preview?: string | HTMLVideoElement, previewPlayTimeout?: number): Promise<HTMLVideoElement>;
+    /**
+     * Keeps track to created media streams.
+     * @private there is no need this array to be accessible from outside.
+     */
+    private static streamTracker;
+    /**
+     * Returns a Promise that resolves when the given image element loads.
+     */
+    private static _waitImageLoad;
+    /**
+     * Checks if the `callbackFn` is defined, otherwise throws.
+     */
+    private static checkCallbackFnOrThrow;
+    /**
+     * Standard method to dispose a media stream object.
+     */
+    private static disposeMediaStream;
+    /**
+     * BrowserCodeReader specific configuration options.
+     */
+    protected readonly options: IBrowserCodeReaderOptions;
+    /**
+     * Creates an instance of BrowserCodeReader.
+     * @param {Reader} reader The reader instance to decode the barcode
+     * @param hints Holds the hints the user sets for the Reader.
+     */
+    constructor(reader: Reader, hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+    /**
+     * Gets the BinaryBitmap for ya! (and decodes it)
+     */
+    decode(element: HTMLVisualMediaElement): Result;
+    /**
+     * Call the encapsulated readers decode
+     */
+    decodeBitmap(binaryBitmap: BinaryBitmap): Result;
+    /**
+     * Decodes some barcode from a canvas!
+     */
+    decodeFromCanvas(canvas: HTMLCanvasElement): Result;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromImageElement(source: string | HTMLImageElement): Promise<Result>;
+    /**
+     * Decodes an image from a URL.
+     */
+    decodeFromImageUrl(url?: string): Promise<Result>;
+    /**
+     * Continuously tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [previewElem] the video element in page where to show the video while
+     *  decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined, in
+     *  which case no video will be shown.
+     */
+    decodeFromConstraints(constraints: MediaStreamConstraints, previewElem: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [preview] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromStream(stream: MediaStream, preview: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Continuously tries to decode the barcode from the device specified by device while showing
+     * the video in the specified video element.
+     *
+     * @param {string|null} [deviceId] the id of one of the devices obtained after calling
+     *  getVideoInputDevices. Can be undefined, in this case it will decode from one of the
+     *  available devices, preferring the main camera (environment facing) if available.
+     * @param {string|HTMLVideoElement|null} [video] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromVideoDevice(deviceId: string | undefined, previewElem: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromVideoElement(source: string | HTMLVideoElement, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Decodes a video from a URL until it ends.
+     */
+    decodeFromVideoUrl(url: string, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param constraints the media stream constraints to get s valid media stream to decode from
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     *  The decoding result.
+     */
+    decodeOnceFromConstraints(constraints: MediaStreamConstraints, videoSource?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [video] the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromStream(stream: MediaStream, preview?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * In one attempt, tries to decode the barcode from the device specified by deviceId
+     * while showing the video in the specified video element.
+     *
+     * @param deviceId the id of one of the devices obtained after calling getVideoInputDevices.
+     *  Can be undefined, in this case it will decode from one of the available devices,
+     *  preferring the main camera (environment facing) if available.
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromVideoDevice(deviceId?: string, videoSource?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeOnceFromVideoElement(source: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * Decodes a video from a URL.
+     */
+    decodeOnceFromVideoUrl(url: string): Promise<Result>;
+    /**
+     * Tries to decode from the video input until it finds some value.
+     */
+    scanOneResult(element: HTMLVisualMediaElement, retryIfNotFound?: boolean, retryIfChecksumError?: boolean, retryIfFormatError?: boolean): Promise<Result>;
+    /**
+     * Continuously decodes from video input.
+     *
+     * @param element HTML element to scan/decode from. It will not be disposed or destroyed.
+     * @param callbackFn Called after every scan attempt, being it successful or errored.
+     * @param finalizeCallback Called after scan process reaches the end or stop is called.
+     */
+    scan(element: HTMLVisualMediaElement, callbackFn: DecodeContinuouslyCallback, finalizeCallback?: (error?: Error) => void): IScannerControls;
+    /**
+     * Waits for the image to load and then tries to decode it.
+     */
+    private _decodeOnLoadImage;
+    /**
+     * Get MediaStream from browser to be used.
+     * @param constraints constraints the media stream constraints to get s valid media stream to decode from.
+     * @private For private use.
+     */
+    private getUserMedia;
+}
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserDatamatrixCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,35 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserDatamatrixCodeReader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+/**
+ * QR Code reader to use from browser.
+ */
+var BrowserDatamatrixCodeReader = /** @class */ (function (_super) {
+    __extends(BrowserDatamatrixCodeReader, _super);
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    function BrowserDatamatrixCodeReader(hints, options) {
+        return _super.call(this, new library_1.DataMatrixReader(), hints, options) || this;
+    }
+    return BrowserDatamatrixCodeReader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserDatamatrixCodeReader = BrowserDatamatrixCodeReader;
+//# sourceMappingURL=BrowserDatamatrixCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserDatamatrixCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserDatamatrixCodeReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAkE;AAClE,yDAAwD;AAGxD;;GAEG;AACH;IAAiD,+CAAiB;IAChE;;OAEG;IACH,qCACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,0BAAgB,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC/C,CAAC;IACH,kCAAC;AAAD,CAAC,AAVD,CAAiD,qCAAiB,GAUjE;AAVY,kEAA2B"}
@@ -0,0 +1,14 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Reader to be used for any One Dimension type barcode.
+ */
+export declare class BrowserMultiFormatOneDReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserBarcodeReader.
+     * @param {Map<DecodeHintType, any>} hints?
+     * @param options
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,37 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserMultiFormatOneDReader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+/**
+ * Reader to be used for any One Dimension type barcode.
+ */
+var BrowserMultiFormatOneDReader = /** @class */ (function (_super) {
+    __extends(BrowserMultiFormatOneDReader, _super);
+    /**
+     * Creates an instance of BrowserBarcodeReader.
+     * @param {Map<DecodeHintType, any>} hints?
+     * @param options
+     */
+    function BrowserMultiFormatOneDReader(hints, options) {
+        return _super.call(this, new library_1.MultiFormatOneDReader(hints), hints, options) || this;
+    }
+    return BrowserMultiFormatOneDReader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserMultiFormatOneDReader = BrowserMultiFormatOneDReader;
+//# sourceMappingURL=BrowserMultiFormatOneDReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserMultiFormatOneDReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserMultiFormatOneDReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAuE;AACvE,yDAAwD;AAGxD;;GAEG;AACH;IAAkD,gDAAiB;IACjE;;;;OAIG;IACH,sCAAmB,KAAgC,EAAE,OAAmC;eACtF,kBAAM,IAAI,+BAAqB,CAAC,KAAK,CAAC,EAAE,KAAK,EAAE,OAAO,CAAC;IACzD,CAAC;IACH,mCAAC;AAAD,CAAC,AATD,CAAkD,qCAAiB,GASlE;AATY,oEAA4B"}
@@ -0,0 +1,17 @@
+import { BarcodeFormat, BinaryBitmap, DecodeHintType, MultiFormatReader, Result } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+export declare class BrowserMultiFormatReader extends BrowserCodeReader {
+    set possibleFormats(formats: BarcodeFormat[]);
+    protected readonly reader: MultiFormatReader;
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+    /**
+     * Overwrite decodeBitmap to call decodeWithState, which will pay
+     * attention to the hints set in the constructor function
+     */
+    decodeBitmap(binaryBitmap: BinaryBitmap): Result;
+    /**
+     * Allows to change hints in runtime.
+     */
+    setHints(hints: Map<DecodeHintType, any>): void;
+}
@@ -0,0 +1,56 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserMultiFormatReader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+var BrowserMultiFormatReader = /** @class */ (function (_super) {
+    __extends(BrowserMultiFormatReader, _super);
+    function BrowserMultiFormatReader(hints, options) {
+        var _this = this;
+        var reader = new library_1.MultiFormatReader();
+        reader.setHints(hints);
+        _this = _super.call(this, reader, hints, options) || this;
+        _this.reader = reader;
+        return _this;
+    }
+    Object.defineProperty(BrowserMultiFormatReader.prototype, "possibleFormats", {
+        set: function (formats) {
+            this.hints.set(library_1.DecodeHintType.POSSIBLE_FORMATS, formats);
+            this.reader.setHints(this.hints);
+        },
+        enumerable: false,
+        configurable: true
+    });
+    /**
+     * Overwrite decodeBitmap to call decodeWithState, which will pay
+     * attention to the hints set in the constructor function
+     */
+    BrowserMultiFormatReader.prototype.decodeBitmap = function (binaryBitmap) {
+        return this.reader.decodeWithState(binaryBitmap);
+    };
+    /**
+     * Allows to change hints in runtime.
+     */
+    BrowserMultiFormatReader.prototype.setHints = function (hints) {
+        this.hints = hints;
+        this.reader.setHints(this.hints);
+    };
+    return BrowserMultiFormatReader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserMultiFormatReader = BrowserMultiFormatReader;
+//# sourceMappingURL=BrowserMultiFormatReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserMultiFormatReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserMultiFormatReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAMwB;AACxB,yDAAwD;AAGxD;IAA8C,4CAAiB;IAS7D,kCACE,KAAgC,EAChC,OAAmC;QAFrC,iBAQC;QAJC,IAAM,MAAM,GAAG,IAAI,2BAAiB,EAAE,CAAC;QACvC,MAAM,CAAC,QAAQ,CAAC,KAAK,CAAC,CAAC;QACvB,QAAA,kBAAM,MAAM,EAAE,KAAK,EAAE,OAAO,CAAC,SAAC;QAC9B,KAAI,CAAC,MAAM,GAAG,MAAM,CAAC;;IACvB,CAAC;IAfD,sBAAI,qDAAe;aAAnB,UAAoB,OAAwB;YAC1C,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,wBAAc,CAAC,gBAAgB,EAAE,OAAO,CAAC,CAAC;YACzD,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;QACnC,CAAC;;;OAAA;IAcD;;;OAGG;IACI,+CAAY,GAAnB,UAAoB,YAA0B;QAC5C,OAAO,IAAI,CAAC,MAAM,CAAC,eAAe,CAAC,YAAY,CAAC,CAAC;IACnD,CAAC;IAED;;OAEG;IACI,2CAAQ,GAAf,UAAgB,KAA+B;QAC7C,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IACnC,CAAC;IACH,+BAAC;AAAD,CAAC,AAlCD,CAA8C,qCAAiB,GAkC9D;AAlCY,4DAAwB"}
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserPDF417Reader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserPDF417Reader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,35 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserPDF417Reader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+/**
+ * QR Code reader to use from browser.
+ */
+var BrowserPDF417Reader = /** @class */ (function (_super) {
+    __extends(BrowserPDF417Reader, _super);
+    /**
+     * Creates an instance of BrowserPDF417Reader.
+     */
+    function BrowserPDF417Reader(hints, options) {
+        return _super.call(this, new library_1.PDF417Reader(), hints, options) || this;
+    }
+    return BrowserPDF417Reader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserPDF417Reader = BrowserPDF417Reader;
+//# sourceMappingURL=BrowserPDF417Reader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserPDF417Reader.js","sourceRoot":"","sources":["../../../src/readers/BrowserPDF417Reader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAA8D;AAC9D,yDAAwD;AAGxD;;GAEG;AACH;IAAyC,uCAAiB;IACxD;;OAEG;IACH,6BACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,sBAAY,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC3C,CAAC;IACH,0BAAC;AAAD,CAAC,AAVD,CAAyC,qCAAiB,GAUzD;AAVY,kDAAmB"}
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserQRCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,35 @@
+"use strict";
+var __extends = (this && this.__extends) || (function () {
+    var extendStatics = function (d, b) {
+        extendStatics = Object.setPrototypeOf ||
+            ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
+            function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
+        return extendStatics(d, b);
+    };
+    return function (d, b) {
+        if (typeof b !== "function" && b !== null)
+            throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
+        extendStatics(d, b);
+        function __() { this.constructor = d; }
+        d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
+    };
+})();
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserQRCodeReader = void 0;
+var library_1 = require("@zxing/library");
+var BrowserCodeReader_1 = require("./BrowserCodeReader");
+/**
+ * QR Code reader to use from browser.
+ */
+var BrowserQRCodeReader = /** @class */ (function (_super) {
+    __extends(BrowserQRCodeReader, _super);
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    function BrowserQRCodeReader(hints, options) {
+        return _super.call(this, new library_1.QRCodeReader(), hints, options) || this;
+    }
+    return BrowserQRCodeReader;
+}(BrowserCodeReader_1.BrowserCodeReader));
+exports.BrowserQRCodeReader = BrowserQRCodeReader;
+//# sourceMappingURL=BrowserQRCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserQRCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserQRCodeReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAA8D;AAC9D,yDAAwD;AAGxD;;GAEG;AACH;IAAyC,uCAAiB;IACxD;;OAEG;IACH,6BACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,sBAAY,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC3C,CAAC;IACH,0BAAC;AAAD,CAAC,AAVD,CAAyC,qCAAiB,GAUzD;AAVY,kDAAmB"}
@@ -0,0 +1,8 @@
+export interface IBrowserCodeReaderOptions {
+    /** Delay time between subsequent successful decode results. */
+    delayBetweenScanSuccess?: number;
+    /** Delay time between decode attempts made by the scanner. */
+    delayBetweenScanAttempts?: number;
+    /** Timeout for waiting the video 'canplay' event. */
+    tryPlayVideoTimeout?: number;
+}
@@ -0,0 +1,3 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+//# sourceMappingURL=IBrowserCodeReaderOptions.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"IBrowserCodeReaderOptions.js","sourceRoot":"","sources":["../../../src/readers/IBrowserCodeReaderOptions.ts"],"names":[],"mappings":""}
@@ -0,0 +1,47 @@
+import { EncodeHintType } from '@zxing/library';
+declare abstract class BrowserCodeSvgWriter {
+    /**
+     * Default quiet zone in pixels.
+     */
+    private static readonly QUIET_ZONE_SIZE;
+    /**
+     * SVG markup NameSpace
+     */
+    private static readonly SVG_NS;
+    /**
+     * A HTML container element for the image.
+     */
+    private containerElement;
+    /**
+     * Constructs. 😉
+     */
+    constructor(containerElement: string | HTMLElement);
+    /**
+     * Writes the QR code to a SVG and renders it in the container.
+     */
+    write(contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): SVGSVGElement;
+    /**
+     * Creates a SVG element.
+     */
+    protected createSVGElement(w: number, h: number): SVGSVGElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgPathPlaceholderElement(w: number, h: number): SVGPathElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgRectElement(x: number, y: number, w: number, h: number): SVGRectElement;
+    /**
+     * Encodes the content to a Barcode type.
+     */
+    private encode;
+    /**
+     * Renders the SVG in the container.
+     *
+     * @note the input matrix uses 0 == white, 1 == black. The output matrix
+     *  uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    private renderResult;
+}
+export { BrowserCodeSvgWriter };
@@ -0,0 +1,135 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserCodeSvgWriter = void 0;
+var library_1 = require("@zxing/library");
+var svgNs = 'http://www.w3.org/2000/svg';
+/**/
+var BrowserCodeSvgWriter = /** @class */ (function () {
+    /**
+     * Constructs. 😉
+     */
+    function BrowserCodeSvgWriter(containerElement) {
+        if (typeof containerElement === 'string') {
+            var container = document.getElementById(containerElement);
+            if (!container) {
+                throw new Error("Could not find a Container element with '".concat(containerElement, "'."));
+            }
+            this.containerElement = container;
+        }
+        else {
+            this.containerElement = containerElement;
+        }
+    }
+    /**
+     * Writes the QR code to a SVG and renders it in the container.
+     */
+    BrowserCodeSvgWriter.prototype.write = function (contents, width, height, hints) {
+        if (contents.length === 0) {
+            throw new library_1.IllegalArgumentException('Found empty contents');
+        }
+        if (width < 0 || height < 0) {
+            throw new library_1.IllegalArgumentException('Requested dimensions are too small: ' + width + 'x' + height);
+        }
+        var quietZone = hints && hints.get(library_1.EncodeHintType.MARGIN) !== undefined
+            ? Number.parseInt(hints.get(library_1.EncodeHintType.MARGIN).toString(), 10)
+            : BrowserCodeSvgWriter.QUIET_ZONE_SIZE;
+        var code = this.encode(hints, contents);
+        return this.renderResult(code, width, height, quietZone);
+    };
+    /**
+     * Creates a SVG element.
+     */
+    BrowserCodeSvgWriter.prototype.createSVGElement = function (w, h) {
+        var el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'svg');
+        el.setAttributeNS(svgNs, 'width', h.toString());
+        el.setAttributeNS(svgNs, 'height', w.toString());
+        return el;
+    };
+    /**
+     * Creates a SVG rect.
+     */
+    BrowserCodeSvgWriter.prototype.createSvgPathPlaceholderElement = function (w, h) {
+        var el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'path');
+        el.setAttributeNS(svgNs, 'd', "M0 0h".concat(w, "v").concat(h, "H0z"));
+        el.setAttributeNS(svgNs, 'fill', 'none');
+        return el;
+    };
+    /**
+     * Creates a SVG rect.
+     */
+    BrowserCodeSvgWriter.prototype.createSvgRectElement = function (x, y, w, h) {
+        var el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'rect');
+        el.setAttributeNS(svgNs, 'x', x.toString());
+        el.setAttributeNS(svgNs, 'y', y.toString());
+        el.setAttributeNS(svgNs, 'height', w.toString());
+        el.setAttributeNS(svgNs, 'width', h.toString());
+        el.setAttributeNS(svgNs, 'fill', '#000000');
+        return el;
+    };
+    /**
+     * Encodes the content to a Barcode type.
+     */
+    BrowserCodeSvgWriter.prototype.encode = function (hints, contents) {
+        var errorCorrectionLevel = library_1.QRCodeDecoderErrorCorrectionLevel.L;
+        if (hints && hints.get(library_1.EncodeHintType.ERROR_CORRECTION) !== undefined) {
+            var correctionStr = hints.get(library_1.EncodeHintType.ERROR_CORRECTION).toString();
+            errorCorrectionLevel = library_1.QRCodeDecoderErrorCorrectionLevel.fromString(correctionStr);
+        }
+        var code = library_1.QRCodeEncoder.encode(contents, errorCorrectionLevel, hints);
+        return code;
+    };
+    /**
+     * Renders the SVG in the container.
+     *
+     * @note the input matrix uses 0 == white, 1 == black. The output matrix
+     *  uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    BrowserCodeSvgWriter.prototype.renderResult = function (code, width /*int*/, height /*int*/, quietZone /*int*/) {
+        // if (this.format && format != this.format) {
+        //   throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format)
+        // }
+        var input = code.getMatrix();
+        if (input === null) {
+            throw new library_1.IllegalStateException();
+        }
+        var inputWidth = input.getWidth();
+        var inputHeight = input.getHeight();
+        var qrWidth = inputWidth + (quietZone * 2);
+        var qrHeight = inputHeight + (quietZone * 2);
+        var outputWidth = Math.max(width, qrWidth);
+        var outputHeight = Math.max(height, qrHeight);
+        var multiple = Math.min(Math.floor(outputWidth / qrWidth), Math.floor(outputHeight / qrHeight));
+        // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
+        // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
+        // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
+        // handle all the padding from 100x100 (the actual QR) up to 200x160.
+        var leftPadding = Math.floor((outputWidth - (inputWidth * multiple)) / 2);
+        var topPadding = Math.floor((outputHeight - (inputHeight * multiple)) / 2);
+        var svgElement = this.createSVGElement(outputWidth, outputHeight);
+        var placeholder = this.createSvgPathPlaceholderElement(width, height);
+        svgElement.appendChild(placeholder);
+        this.containerElement.appendChild(svgElement);
+        // 2D loop
+        for (var inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
+            // Write the contents of this row of the barcode
+            for (var inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
+                if (input.get(inputX, inputY) === 1) {
+                    var svgRectElement = this.createSvgRectElement(outputX, outputY, multiple, multiple);
+                    svgElement.appendChild(svgRectElement);
+                }
+            }
+        }
+        return svgElement;
+    };
+    /**
+     * Default quiet zone in pixels.
+     */
+    BrowserCodeSvgWriter.QUIET_ZONE_SIZE = 4;
+    /**
+     * SVG markup NameSpace
+     */
+    BrowserCodeSvgWriter.SVG_NS = 'http://www.w3.org/2000/svg';
+    return BrowserCodeSvgWriter;
+}());
+exports.BrowserCodeSvgWriter = BrowserCodeSvgWriter;
+//# sourceMappingURL=BrowserCodeSvgWriter.js.map
@@ -0,0 +1 @@
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@@ -0,0 +1,39 @@
+import { EncodeHintType } from '@zxing/library';
+declare class BrowserQRCodeSvgWriter {
+    private static readonly QUIET_ZONE_SIZE;
+    /**
+     * Writes and renders a QRCode SVG element.
+     *
+     * @param contents
+     * @param width
+     * @param height
+     * @param hints
+     */
+    write(contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): SVGSVGElement;
+    /**
+     * Renders the result and then appends it to the DOM.
+     */
+    writeToDom(containerElement: string | HTMLElement, contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): void;
+    /**
+     * Note that the input matrix uses 0 == white, 1 == black.
+     * The output matrix uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    private renderResult;
+    /**
+     * Creates a SVG element.
+     *
+     * @param w SVG's width attribute
+     * @param h SVG's height attribute
+     */
+    private createSVGElement;
+    /**
+     * Creates a SVG rect element.
+     *
+     * @param x Element's x coordinate
+     * @param y Element's y coordinate
+     * @param w Element's width attribute
+     * @param h Element's height attribute
+     */
+    private createSvgRectElement;
+}
+export { BrowserQRCodeSvgWriter };
@@ -0,0 +1,128 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.BrowserQRCodeSvgWriter = void 0;
+var library_1 = require("@zxing/library");
+var svgNs = 'http://www.w3.org/2000/svg';
+/**/
+var BrowserQRCodeSvgWriter = /** @class */ (function () {
+    function BrowserQRCodeSvgWriter() {
+    }
+    /**
+     * Writes and renders a QRCode SVG element.
+     *
+     * @param contents
+     * @param width
+     * @param height
+     * @param hints
+     */
+    BrowserQRCodeSvgWriter.prototype.write = function (contents, width, height, hints) {
+        if (contents.length === 0) {
+            throw new library_1.IllegalArgumentException('Found empty contents');
+        }
+        // if (format != BarcodeFormat.QR_CODE) {
+        //   throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format)
+        // }
+        if (width < 0 || height < 0) {
+            throw new library_1.IllegalArgumentException('Requested dimensions are too small: ' + width + 'x' + height);
+        }
+        var errorCorrectionLevel = library_1.QRCodeDecoderErrorCorrectionLevel.L;
+        var quietZone = BrowserQRCodeSvgWriter.QUIET_ZONE_SIZE;
+        if (hints) {
+            if (undefined !== hints.get(library_1.EncodeHintType.ERROR_CORRECTION)) {
+                var correctionStr = hints.get(library_1.EncodeHintType.ERROR_CORRECTION).toString();
+                errorCorrectionLevel = library_1.QRCodeDecoderErrorCorrectionLevel.fromString(correctionStr);
+            }
+            if (undefined !== hints.get(library_1.EncodeHintType.MARGIN)) {
+                quietZone = Number.parseInt(hints.get(library_1.EncodeHintType.MARGIN).toString(), 10);
+            }
+        }
+        var code = library_1.QRCodeEncoder.encode(contents, errorCorrectionLevel, hints);
+        return this.renderResult(code, width, height, quietZone);
+    };
+    /**
+     * Renders the result and then appends it to the DOM.
+     */
+    BrowserQRCodeSvgWriter.prototype.writeToDom = function (containerElement, contents, width, height, hints) {
+        if (typeof containerElement === 'string') {
+            var targetEl = document.querySelector(containerElement);
+            if (!targetEl) {
+                throw new Error('Could no find the target HTML element.');
+            }
+            containerElement = targetEl;
+        }
+        var svgElement = this.write(contents, width, height, hints);
+        if (containerElement instanceof HTMLElement) {
+            containerElement.appendChild(svgElement);
+        }
+    };
+    /**
+     * Note that the input matrix uses 0 == white, 1 == black.
+     * The output matrix uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    BrowserQRCodeSvgWriter.prototype.renderResult = function (code, width /*int*/, height /*int*/, quietZone /*int*/) {
+        var input = code.getMatrix();
+        if (input === null) {
+            throw new library_1.IllegalStateException();
+        }
+        var inputWidth = input.getWidth();
+        var inputHeight = input.getHeight();
+        var qrWidth = inputWidth + (quietZone * 2);
+        var qrHeight = inputHeight + (quietZone * 2);
+        var outputWidth = Math.max(width, qrWidth);
+        var outputHeight = Math.max(height, qrHeight);
+        var multiple = Math.min(Math.floor(outputWidth / qrWidth), Math.floor(outputHeight / qrHeight));
+        // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
+        // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
+        // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
+        // handle all the padding from 100x100 (the actual QR) up to 200x160.
+        var leftPadding = Math.floor((outputWidth - (inputWidth * multiple)) / 2);
+        var topPadding = Math.floor((outputHeight - (inputHeight * multiple)) / 2);
+        var svgElement = this.createSVGElement(outputWidth, outputHeight);
+        for (var inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
+            // Write the contents of this row of the barcode
+            for (var inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
+                if (input.get(inputX, inputY) === 1) {
+                    var svgRectElement = this.createSvgRectElement(outputX, outputY, multiple, multiple);
+                    svgElement.appendChild(svgRectElement);
+                }
+            }
+        }
+        return svgElement;
+    };
+    /**
+     * Creates a SVG element.
+     *
+     * @param w SVG's width attribute
+     * @param h SVG's height attribute
+     */
+    BrowserQRCodeSvgWriter.prototype.createSVGElement = function (w, h) {
+        var svgElement = document.createElementNS(svgNs, 'svg');
+        var width = w.toString();
+        var height = h.toString();
+        svgElement.setAttribute('height', height);
+        svgElement.setAttribute('width', width);
+        svgElement.setAttribute('viewBox', "0 0 " + width + " " + height);
+        return svgElement;
+    };
+    /**
+     * Creates a SVG rect element.
+     *
+     * @param x Element's x coordinate
+     * @param y Element's y coordinate
+     * @param w Element's width attribute
+     * @param h Element's height attribute
+     */
+    BrowserQRCodeSvgWriter.prototype.createSvgRectElement = function (x, y, w, h) {
+        var rect = document.createElementNS(svgNs, 'rect');
+        rect.setAttribute('x', x.toString());
+        rect.setAttribute('y', y.toString());
+        rect.setAttribute('height', w.toString());
+        rect.setAttribute('width', h.toString());
+        rect.setAttribute('fill', '#000000');
+        return rect;
+    };
+    BrowserQRCodeSvgWriter.QUIET_ZONE_SIZE = 4;
+    return BrowserQRCodeSvgWriter;
+}());
+exports.BrowserQRCodeSvgWriter = BrowserQRCodeSvgWriter;
+//# sourceMappingURL=BrowserQRCodeSvgWriter.js.map
@@ -0,0 +1 @@
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@@ -0,0 +1,6 @@
+import { Exception, Result } from '@zxing/library';
+import { IScannerControls } from './IScannerControls';
+/**
+ * Callback format for continuous decode scan.
+ */
+export declare type DecodeContinuouslyCallback = (result: Result | undefined, error: Exception | undefined, controls: IScannerControls) => void;
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=DecodeContinuouslyCallback.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"DecodeContinuouslyCallback.js","sourceRoot":"","sources":["../../../src/common/DecodeContinuouslyCallback.ts"],"names":[],"mappings":""}
@@ -0,0 +1,25 @@
+import { LuminanceSource } from '@zxing/library';
+export declare class HTMLCanvasElementLuminanceSource extends LuminanceSource {
+    private canvas;
+    private static DEGREE_TO_RADIANS;
+    private static makeBufferFromCanvasImageData;
+    private static toGrayscaleBuffer;
+    private buffer;
+    private tempCanvasElement?;
+    constructor(canvas: HTMLCanvasElement);
+    getRow(y: number, row: Uint8ClampedArray): Uint8ClampedArray;
+    getMatrix(): Uint8ClampedArray;
+    isCropSupported(): boolean;
+    crop(left: number, top: number, width: number, height: number): LuminanceSource;
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    isRotateSupported(): boolean;
+    rotateCounterClockwise(): LuminanceSource;
+    rotateCounterClockwise45(): LuminanceSource;
+    invert(): LuminanceSource;
+    private getTempCanvasElement;
+    private rotate;
+}
@@ -0,0 +1,132 @@
+import { IllegalArgumentException, InvertedLuminanceSource, LuminanceSource, } from '@zxing/library';
+/**/
+export class HTMLCanvasElementLuminanceSource extends LuminanceSource {
+    constructor(canvas) {
+        super(canvas.width, canvas.height);
+        this.canvas = canvas;
+        this.tempCanvasElement = null;
+        this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(canvas);
+    }
+    static makeBufferFromCanvasImageData(canvas) {
+        let canvasCtx;
+        try {
+            canvasCtx = canvas.getContext('2d', { willReadFrequently: true });
+        }
+        catch (e) {
+            canvasCtx = canvas.getContext('2d');
+        }
+        if (!canvasCtx) {
+            throw new Error('Couldn\'t get canvas context.');
+        }
+        const imageData = canvasCtx.getImageData(0, 0, canvas.width, canvas.height);
+        return HTMLCanvasElementLuminanceSource.toGrayscaleBuffer(imageData.data, canvas.width, canvas.height);
+    }
+    static toGrayscaleBuffer(imageBuffer, width, height) {
+        const grayscaleBuffer = new Uint8ClampedArray(width * height);
+        for (let i = 0, j = 0, length = imageBuffer.length; i < length; i += 4, j++) {
+            let gray;
+            const alpha = imageBuffer[i + 3];
+            // The color of fully-transparent pixels is irrelevant. They are often, technically, fully-transparent
+            // black (0 alpha, and then 0 RGB). They are often used, of course as the "white" area in a
+            // barcode image. Force any such pixel to be white:
+            if (alpha === 0) {
+                gray = 0xFF;
+            }
+            else {
+                const pixelR = imageBuffer[i];
+                const pixelG = imageBuffer[i + 1];
+                const pixelB = imageBuffer[i + 2];
+                // .299R + 0.587G + 0.114B (YUV/YIQ for PAL and NTSC),
+                // (306*R) >> 10 is approximately equal to R*0.299, and so on.
+                // 0x200 >> 10 is 0.5, it implements rounding.
+                // tslint:disable-next-line:no-bitwise
+                gray = (306 * pixelR + 601 * pixelG + 117 * pixelB + 0x200) >> 10;
+            }
+            grayscaleBuffer[j] = gray;
+        }
+        return grayscaleBuffer;
+    }
+    getRow(y /*int*/, row) {
+        if (y < 0 || y >= this.getHeight()) {
+            throw new IllegalArgumentException('Requested row is outside the image: ' + y);
+        }
+        const width = this.getWidth();
+        const start = y * width;
+        if (row === null) {
+            row = this.buffer.slice(start, start + width);
+        }
+        else {
+            if (row.length < width) {
+                row = new Uint8ClampedArray(width);
+            }
+            // The underlying raster of image consists of bytes with the luminance values
+            // TODO: can avoid set/slice?
+            row.set(this.buffer.slice(start, start + width));
+        }
+        return row;
+    }
+    getMatrix() {
+        return this.buffer;
+    }
+    isCropSupported() {
+        return true;
+    }
+    crop(left /*int*/, top /*int*/, width /*int*/, height /*int*/) {
+        super.crop(left, top, width, height);
+        return this;
+    }
+    /**
+     * This is always true, since the image is a gray-scale image.
+     *
+     * @return true
+     */
+    isRotateSupported() {
+        return true;
+    }
+    rotateCounterClockwise() {
+        this.rotate(-90);
+        return this;
+    }
+    rotateCounterClockwise45() {
+        this.rotate(-45);
+        return this;
+    }
+    invert() {
+        return new InvertedLuminanceSource(this);
+    }
+    getTempCanvasElement() {
+        if (null === this.tempCanvasElement) {
+            const tempCanvasElement = this.canvas.ownerDocument.createElement('canvas');
+            tempCanvasElement.width = this.canvas.width;
+            tempCanvasElement.height = this.canvas.height;
+            this.tempCanvasElement = tempCanvasElement;
+        }
+        return this.tempCanvasElement;
+    }
+    rotate(angle) {
+        const tempCanvasElement = this.getTempCanvasElement();
+        if (!tempCanvasElement) {
+            throw new Error('Could not create a Canvas element.');
+        }
+        const angleRadians = angle * HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS;
+        // Calculate and set new dimensions for temp canvas
+        const width = this.canvas.width;
+        const height = this.canvas.height;
+        const newWidth = Math.ceil(Math.abs(Math.cos(angleRadians)) * width + Math.abs(Math.sin(angleRadians)) * height);
+        const newHeight = Math.ceil(Math.abs(Math.sin(angleRadians)) * width + Math.abs(Math.cos(angleRadians)) * height);
+        tempCanvasElement.width = newWidth;
+        tempCanvasElement.height = newHeight;
+        const tempContext = tempCanvasElement.getContext('2d');
+        if (!tempContext) {
+            throw new Error('Could not create a Canvas Context element.');
+        }
+        // Draw at center of temp canvas to prevent clipping of image data
+        tempContext.translate(newWidth / 2, newHeight / 2);
+        tempContext.rotate(angleRadians);
+        tempContext.drawImage(this.canvas, width / -2, height / -2);
+        this.buffer = HTMLCanvasElementLuminanceSource.makeBufferFromCanvasImageData(tempCanvasElement);
+        return this;
+    }
+}
+HTMLCanvasElementLuminanceSource.DEGREE_TO_RADIANS = Math.PI / 180;
+//# sourceMappingURL=HTMLCanvasElementLuminanceSource.js.map
@@ -0,0 +1 @@
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@@ -0,0 +1,4 @@
+/**
+ * HTML elements that can be decoded.
+ */
+export declare type HTMLVisualMediaElement = HTMLVideoElement | HTMLImageElement;
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=HTMLVisualMediaElement.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"HTMLVisualMediaElement.js","sourceRoot":"","sources":["../../../src/common/HTMLVisualMediaElement.ts"],"names":[],"mappings":""}
@@ -0,0 +1,30 @@
+export interface IScannerControls {
+    /**
+     * Stops the scan process loop.
+     */
+    stop: () => void;
+    /**
+     * @experimental This is highly unstable and Torch support is not ready on browsers. Use at YOUR OWN risk.
+     */
+    switchTorch?: (onOff: boolean) => Promise<void>;
+    /**
+     * Allows to apply constraints to all tracks or filtered tracks in the stream.
+     * @experimental
+     */
+    streamVideoConstraintsApply?: (constraints: MediaTrackConstraints, trackFilter?: (track: MediaStreamTrack) => MediaStreamTrack[]) => void;
+    /**
+     * Get the desired track constraints.
+     * @experimental
+     */
+    streamVideoConstraintsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackConstraints;
+    /**
+     * Get the desired track settings.
+     * @experimental
+     */
+    streamVideoSettingsGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackSettings;
+    /**
+     * Get the desired track capabilities.
+     * @experimental
+     */
+    streamVideoCapabilitiesGet?: (trackFilter: (track: MediaStreamTrack) => MediaStreamTrack[]) => MediaTrackCapabilities;
+}
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=IScannerControls.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"IScannerControls.js","sourceRoot":"","sources":["../../../src/common/IScannerControls.ts"],"names":[],"mappings":""}
@@ -0,0 +1,8 @@
+/**
+ * If navigator is present.
+ */
+export declare function hasNavigator(): boolean;
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+export declare function canEnumerateDevices(): boolean;
@@ -0,0 +1,19 @@
+/**
+ * If navigator is present.
+ */
+export function hasNavigator() {
+    return typeof navigator !== 'undefined';
+}
+/**
+ * If mediaDevices under navigator is supported.
+ */
+function isMediaDevicesSupported() {
+    return hasNavigator() && !!navigator.mediaDevices;
+}
+/**
+ * If enumerateDevices under navigator is supported.
+ */
+export function canEnumerateDevices() {
+    return !!(isMediaDevicesSupported() && navigator.mediaDevices.enumerateDevices);
+}
+//# sourceMappingURL=navigator-utils.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"navigator-utils.js","sourceRoot":"","sources":["../../../src/common/navigator-utils.ts"],"names":[],"mappings":"AAAA;;GAEG;AACH,MAAM,UAAU,YAAY;IAC1B,OAAO,OAAO,SAAS,KAAK,WAAW,CAAC;AAC1C,CAAC;AACD;;GAEG;AACH,SAAS,uBAAuB;IAC9B,OAAO,YAAY,EAAE,IAAI,CAAC,CAAC,SAAS,CAAC,YAAY,CAAC;AACpD,CAAC;AACD;;GAEG;AACH,MAAM,UAAU,mBAAmB;IACjC,OAAO,CAAC,CAAC,CAAC,uBAAuB,EAAE,IAAI,SAAS,CAAC,YAAY,CAAC,gBAAgB,CAAC,CAAC;AAClF,CAAC"}
@@ -0,0 +1,14 @@
+export { BarcodeFormat } from '@zxing/library';
+export * from './common/HTMLCanvasElementLuminanceSource';
+export * from './common/HTMLVisualMediaElement';
+export * from './common/IScannerControls';
+export * from './readers/BrowserAztecCodeReader';
+export * from './readers/BrowserMultiFormatOneDReader';
+export * from './readers/BrowserCodeReader';
+export * from './readers/BrowserDatamatrixCodeReader';
+export * from './readers/BrowserMultiFormatReader';
+export * from './readers/BrowserPDF417Reader';
+export * from './readers/BrowserQRCodeReader';
+export * from './readers/IBrowserCodeReaderOptions';
+export * from './writers/BrowserCodeSvgWriter';
+export * from './writers/BrowserQRCodeSvgWriter';
@@ -0,0 +1,20 @@
+// public API
+// core
+export { BarcodeFormat } from '@zxing/library';
+// common
+export * from './common/HTMLCanvasElementLuminanceSource';
+export * from './common/HTMLVisualMediaElement';
+export * from './common/IScannerControls';
+// readers
+export * from './readers/BrowserAztecCodeReader';
+export * from './readers/BrowserMultiFormatOneDReader';
+export * from './readers/BrowserCodeReader';
+export * from './readers/BrowserDatamatrixCodeReader';
+export * from './readers/BrowserMultiFormatReader';
+export * from './readers/BrowserPDF417Reader';
+export * from './readers/BrowserQRCodeReader';
+export * from './readers/IBrowserCodeReaderOptions';
+// writers
+export * from './writers/BrowserCodeSvgWriter';
+export * from './writers/BrowserQRCodeSvgWriter';
+//# sourceMappingURL=index.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":"AAAA,aAAa;AAEb,OAAO;AACP,OAAO,EAAE,aAAa,EAAE,MAAM,gBAAgB,CAAC;AAE/C,SAAS;AACT,cAAc,2CAA2C,CAAC;AAC1D,cAAc,iCAAiC,CAAC;AAChD,cAAc,2BAA2B,CAAC;AAE1C,UAAU;AACV,cAAc,kCAAkC,CAAC;AACjD,cAAc,wCAAwC,CAAC;AACvD,cAAc,6BAA6B,CAAC;AAC5C,cAAc,uCAAuC,CAAC;AACtD,cAAc,oCAAoC,CAAC;AACnD,cAAc,+BAA+B,CAAC;AAC9C,cAAc,+BAA+B,CAAC;AAC9C,cAAc,qCAAqC,CAAC;AAEpD,UAAU;AACV,cAAc,gCAAgC,CAAC;AAC/C,cAAc,kCAAkC,CAAC"}
@@ -0,0 +1,15 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Aztec Code reader to use from browser.
+ *
+ * @class BrowserAztecCodeReader
+ * @extends {BrowserCodeReader}
+ */
+export declare class BrowserAztecCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserAztecCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,17 @@
+import { AztecCodeReader } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+/**
+ * Aztec Code reader to use from browser.
+ *
+ * @class BrowserAztecCodeReader
+ * @extends {BrowserCodeReader}
+ */
+export class BrowserAztecCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserAztecCodeReader.
+     */
+    constructor(hints, options) {
+        super(new AztecCodeReader(), hints, options);
+    }
+}
+//# sourceMappingURL=BrowserAztecCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserAztecCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserAztecCodeReader.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,eAAe,EAAkB,MAAM,gBAAgB,CAAC;AACjE,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD;;;;;GAKG;AACH,MAAM,OAAO,sBAAuB,SAAQ,iBAAiB;IAC3D;;OAEG;IACH,YACE,KAAgC,EAChC,OAAmC;QAEnC,KAAK,CAAC,IAAI,eAAe,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;IAC/C,CAAC;CACF"}
@@ -0,0 +1,283 @@
+import { BarcodeFormat, BinaryBitmap, DecodeHintType, Reader, Result } from '@zxing/library';
+import { DecodeContinuouslyCallback } from '../common/DecodeContinuouslyCallback';
+import { HTMLVisualMediaElement } from '../common/HTMLVisualMediaElement';
+import { IScannerControls } from '../common/IScannerControls';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Base class for browser code reader.
+ */
+export declare class BrowserCodeReader {
+    protected readonly reader: Reader;
+    hints: Map<DecodeHintType, any>;
+    /**
+     * Allows to change the possible formats the decoder should
+     * search for while scanning some image. Useful for changing
+     * the possible formats during BrowserCodeReader::scan.
+     */
+    set possibleFormats(formats: BarcodeFormat[]);
+    /**
+     * Defines what the videoElement src will be.
+     *
+     * @param videoElement
+     * @param stream The stream to be added as a source.
+     */
+    static addVideoSource(videoElement: HTMLVideoElement, stream: MediaStream): void;
+    /**
+     * Enables or disables the torch in a media stream.
+     *
+     * @experimental This doesn't work across all browsers and is still a Draft.
+     */
+    static mediaStreamSetTorch(track: MediaStreamTrack, onOff: boolean): Promise<void>;
+    /**
+     * Checks if the stream has torch support.
+     */
+    static mediaStreamIsTorchCompatible(params: MediaStream): boolean;
+    /**
+     *
+     * @param track The media stream track that will be checked for compatibility.
+     */
+    static mediaStreamIsTorchCompatibleTrack(track: MediaStreamTrack): boolean;
+    /**
+     * Checks if the given video element is currently playing.
+     */
+    static isVideoPlaying(video: HTMLVideoElement): boolean;
+    /**
+     * Searches and validates a media element.
+     */
+    static getMediaElement(mediaElementId: string, type: string): HTMLVisualMediaElement;
+    /**
+     * Receives a source and makes sure to return a Video Element from it or fail.
+     */
+    static createVideoElement(videoThingy?: HTMLVideoElement | string): HTMLVideoElement;
+    /**
+     * Receives a source and makes sure to return an Image Element from it or fail.
+     */
+    static prepareImageElement(imageSource?: HTMLImageElement | string): HTMLImageElement;
+    /**
+     * Sets a HTMLVideoElement for scanning or creates a new one.
+     *
+     * @param videoElem The HTMLVideoElement to be set.
+     */
+    static prepareVideoElement(videoElem?: HTMLVideoElement | string): HTMLVideoElement;
+    /**
+     * Checks if and HTML image is loaded.
+     */
+    static isImageLoaded(img: HTMLImageElement): boolean;
+    /**
+     * Creates a binaryBitmap based in a canvas.
+     *
+     * @param canvas HTML canvas element containing the image source draw.
+     */
+    static createBinaryBitmapFromCanvas(canvas: HTMLCanvasElement): BinaryBitmap;
+    /**
+     * Overwriting this allows you to manipulate the snapshot image in anyway you want before decode.
+     */
+    static drawImageOnCanvas(canvasElementContext: CanvasRenderingContext2D, srcElement: HTMLVisualMediaElement): void;
+    static getMediaElementDimensions(mediaElement: HTMLVisualMediaElement): {
+        height: number;
+        width: number;
+    };
+    /**
+     * 🖌 Prepares the canvas for capture and scan frames.
+     */
+    static createCaptureCanvas(mediaElement: HTMLVisualMediaElement): HTMLCanvasElement;
+    /**
+     * Just tries to play the video and logs any errors.
+     * The play call is only made is the video is not already playing.
+     */
+    static tryPlayVideo(videoElement: HTMLVideoElement): Promise<boolean>;
+    /**
+     * Creates a canvas and draws the current image frame from the media element on it.
+     *
+     * @param mediaElement HTML media element to extract an image frame from.
+     */
+    static createCanvasFromMediaElement(mediaElement: HTMLVisualMediaElement): HTMLCanvasElement;
+    /**
+     * Creates a binaryBitmap based in some image source.
+     *
+     * @param mediaElement HTML element containing drawable image source.
+     */
+    static createBinaryBitmapFromMediaElem(mediaElement: HTMLVisualMediaElement): BinaryBitmap;
+    static destroyImageElement(imageElement: HTMLImageElement): void;
+    /**
+     * Lists all the available video input devices.
+     */
+    static listVideoInputDevices(): Promise<MediaDeviceInfo[]>;
+    /**
+     * Let's you find a device using it's Id.
+     */
+    static findDeviceById(deviceId: string): Promise<MediaDeviceInfo | undefined>;
+    /**
+     * Unbinds a HTML video src property.
+     */
+    static cleanVideoSource(videoElement: HTMLVideoElement): void;
+    /**
+     * Stops all media streams that are created.
+     */
+    static releaseAllStreams(): void;
+    /**
+     * Waits for a video to load and then hits play on it.
+     * To accomplish that, it binds listeners and callbacks to the video element.
+     *
+     * @param element The video element.
+     * @param callbackFn Callback invoked when the video is played.
+     */
+    protected static playVideoOnLoadAsync(element: HTMLVideoElement, timeout: number): Promise<boolean>;
+    /**
+     * Sets the new stream and request a new decoding-with-delay.
+     *
+     * @param stream The stream to be shown in the video element.
+     * @param decodeFn A callback for the decode method.
+     */
+    protected static attachStreamToVideo(stream: MediaStream, preview?: string | HTMLVideoElement, previewPlayTimeout?: number): Promise<HTMLVideoElement>;
+    /**
+     * Keeps track to created media streams.
+     * @private there is no need this array to be accessible from outside.
+     */
+    private static streamTracker;
+    /**
+     * Returns a Promise that resolves when the given image element loads.
+     */
+    private static _waitImageLoad;
+    /**
+     * Checks if the `callbackFn` is defined, otherwise throws.
+     */
+    private static checkCallbackFnOrThrow;
+    /**
+     * Standard method to dispose a media stream object.
+     */
+    private static disposeMediaStream;
+    /**
+     * BrowserCodeReader specific configuration options.
+     */
+    protected readonly options: IBrowserCodeReaderOptions;
+    /**
+     * Creates an instance of BrowserCodeReader.
+     * @param {Reader} reader The reader instance to decode the barcode
+     * @param hints Holds the hints the user sets for the Reader.
+     */
+    constructor(reader: Reader, hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+    /**
+     * Gets the BinaryBitmap for ya! (and decodes it)
+     */
+    decode(element: HTMLVisualMediaElement): Result;
+    /**
+     * Call the encapsulated readers decode
+     */
+    decodeBitmap(binaryBitmap: BinaryBitmap): Result;
+    /**
+     * Decodes some barcode from a canvas!
+     */
+    decodeFromCanvas(canvas: HTMLCanvasElement): Result;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromImageElement(source: string | HTMLImageElement): Promise<Result>;
+    /**
+     * Decodes an image from a URL.
+     */
+    decodeFromImageUrl(url?: string): Promise<Result>;
+    /**
+     * Continuously tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [previewElem] the video element in page where to show the video while
+     *  decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined, in
+     *  which case no video will be shown.
+     */
+    decodeFromConstraints(constraints: MediaStreamConstraints, previewElem: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [preview] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromStream(stream: MediaStream, preview: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Continuously tries to decode the barcode from the device specified by device while showing
+     * the video in the specified video element.
+     *
+     * @param {string|null} [deviceId] the id of one of the devices obtained after calling
+     *  getVideoInputDevices. Can be undefined, in this case it will decode from one of the
+     *  available devices, preferring the main camera (environment facing) if available.
+     * @param {string|HTMLVideoElement|null} [video] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromVideoDevice(deviceId: string | undefined, previewElem: string | HTMLVideoElement | undefined, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromVideoElement(source: string | HTMLVideoElement, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * Decodes a video from a URL until it ends.
+     */
+    decodeFromVideoUrl(url: string, callbackFn: DecodeContinuouslyCallback): Promise<IScannerControls>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param constraints the media stream constraints to get s valid media stream to decode from
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     *  The decoding result.
+     */
+    decodeOnceFromConstraints(constraints: MediaStreamConstraints, videoSource?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [video] the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromStream(stream: MediaStream, preview?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * In one attempt, tries to decode the barcode from the device specified by deviceId
+     * while showing the video in the specified video element.
+     *
+     * @param deviceId the id of one of the devices obtained after calling getVideoInputDevices.
+     *  Can be undefined, in this case it will decode from one of the available devices,
+     *  preferring the main camera (environment facing) if available.
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromVideoDevice(deviceId?: string, videoSource?: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeOnceFromVideoElement(source: string | HTMLVideoElement): Promise<Result>;
+    /**
+     * Decodes a video from a URL.
+     */
+    decodeOnceFromVideoUrl(url: string): Promise<Result>;
+    /**
+     * Tries to decode from the video input until it finds some value.
+     */
+    scanOneResult(element: HTMLVisualMediaElement, retryIfNotFound?: boolean, retryIfChecksumError?: boolean, retryIfFormatError?: boolean): Promise<Result>;
+    /**
+     * Continuously decodes from video input.
+     *
+     * @param element HTML element to scan/decode from. It will not be disposed or destroyed.
+     * @param callbackFn Called after every scan attempt, being it successful or errored.
+     * @param finalizeCallback Called after scan process reaches the end or stop is called.
+     */
+    scan(element: HTMLVisualMediaElement, callbackFn: DecodeContinuouslyCallback, finalizeCallback?: (error?: Error) => void): IScannerControls;
+    /**
+     * Waits for the image to load and then tries to decode it.
+     */
+    private _decodeOnLoadImage;
+    /**
+     * Get MediaStream from browser to be used.
+     * @param constraints constraints the media stream constraints to get s valid media stream to decode from.
+     * @private For private use.
+     */
+    private getUserMedia;
+}
@@ -0,0 +1,909 @@
+var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
+    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
+    return new (P || (P = Promise))(function (resolve, reject) {
+        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
+        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
+        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
+        step((generator = generator.apply(thisArg, _arguments || [])).next());
+    });
+};
+import { ArgumentException, BinaryBitmap, ChecksumException, DecodeHintType, FormatException, HybridBinarizer, NotFoundException, } from '@zxing/library';
+import { HTMLCanvasElementLuminanceSource } from '../common/HTMLCanvasElementLuminanceSource';
+import { canEnumerateDevices, hasNavigator } from '../common/navigator-utils';
+const defaultOptions = {
+    delayBetweenScanAttempts: 500,
+    delayBetweenScanSuccess: 500,
+    tryPlayVideoTimeout: 5000,
+};
+/**
+ * Base class for browser code reader.
+ */
+export class BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserCodeReader.
+     * @param {Reader} reader The reader instance to decode the barcode
+     * @param hints Holds the hints the user sets for the Reader.
+     */
+    constructor(reader, hints = new Map(), options = {}) {
+        this.reader = reader;
+        this.hints = hints;
+        this.options = Object.assign(Object.assign({}, defaultOptions), options);
+    }
+    /**
+     * Allows to change the possible formats the decoder should
+     * search for while scanning some image. Useful for changing
+     * the possible formats during BrowserCodeReader::scan.
+     */
+    set possibleFormats(formats) {
+        this.hints.set(DecodeHintType.POSSIBLE_FORMATS, formats);
+    }
+    /**
+     * Defines what the videoElement src will be.
+     *
+     * @param videoElement
+     * @param stream The stream to be added as a source.
+     */
+    static addVideoSource(videoElement, stream) {
+        // Older browsers may not have `srcObject`
+        try {
+            // @note Throws Exception if interrupted by a new loaded request
+            videoElement.srcObject = stream;
+        }
+        catch (err) {
+            console.error("got interrupted by new loading request");
+        }
+    }
+    /**
+     * Enables or disables the torch in a media stream.
+     *
+     * @experimental This doesn't work across all browsers and is still a Draft.
+     */
+    static mediaStreamSetTorch(track, onOff) {
+        return __awaiter(this, void 0, void 0, function* () {
+            yield track.applyConstraints({
+                advanced: [{
+                        fillLightMode: onOff ? 'flash' : 'off',
+                        torch: onOff ? true : false,
+                    }],
+            });
+        });
+    }
+    /**
+     * Checks if the stream has torch support.
+     */
+    static mediaStreamIsTorchCompatible(params) {
+        const tracks = params.getVideoTracks();
+        for (const track of tracks) {
+            if (BrowserCodeReader.mediaStreamIsTorchCompatibleTrack(track)) {
+                return true;
+            }
+        }
+        return false;
+    }
+    /**
+     *
+     * @param track The media stream track that will be checked for compatibility.
+     */
+    static mediaStreamIsTorchCompatibleTrack(track) {
+        try {
+            const capabilities = track.getCapabilities();
+            return 'torch' in capabilities;
+        }
+        catch (err) {
+            // some browsers may not be compatible with ImageCapture
+            // so we are ignoring this for now.
+            // tslint:disable-next-line:no-console
+            console.error(err);
+            // tslint:disable-next-line:no-console
+            console.warn('Your browser may be not fully compatible with WebRTC and/or ImageCapture specs. Torch will not be available.');
+            return false;
+        }
+    }
+    /**
+     * Checks if the given video element is currently playing.
+     */
+    static isVideoPlaying(video) {
+        return video.currentTime > 0 && !video.paused && video.readyState > 2;
+    }
+    /**
+     * Searches and validates a media element.
+     */
+    static getMediaElement(mediaElementId, type) {
+        const mediaElement = document.getElementById(mediaElementId);
+        if (!mediaElement) {
+            throw new ArgumentException(`element with id '${mediaElementId}' not found`);
+        }
+        if (mediaElement.nodeName.toLowerCase() !== type.toLowerCase()) {
+            throw new ArgumentException(`element with id '${mediaElementId}' must be an ${type} element`);
+        }
+        return mediaElement;
+    }
+    /**
+     * Receives a source and makes sure to return a Video Element from it or fail.
+     */
+    static createVideoElement(videoThingy) {
+        if (videoThingy instanceof HTMLVideoElement) {
+            return videoThingy;
+        }
+        if (typeof videoThingy === 'string') {
+            return BrowserCodeReader.getMediaElement(videoThingy, 'video');
+        }
+        if (!videoThingy && typeof document !== 'undefined') {
+            const videoElement = document.createElement('video');
+            videoElement.width = 200;
+            videoElement.height = 200;
+            return videoElement;
+        }
+        throw new Error('Couldn\'t get videoElement from videoSource!');
+    }
+    /**
+     * Receives a source and makes sure to return an Image Element from it or fail.
+     */
+    static prepareImageElement(imageSource) {
+        if (imageSource instanceof HTMLImageElement) {
+            return imageSource;
+        }
+        if (typeof imageSource === 'string') {
+            return BrowserCodeReader.getMediaElement(imageSource, 'img');
+        }
+        if (typeof imageSource === 'undefined') {
+            const imageElement = document.createElement('img');
+            imageElement.width = 200;
+            imageElement.height = 200;
+            return imageElement;
+        }
+        throw new Error('Couldn\'t get imageElement from imageSource!');
+    }
+    /**
+     * Sets a HTMLVideoElement for scanning or creates a new one.
+     *
+     * @param videoElem The HTMLVideoElement to be set.
+     */
+    static prepareVideoElement(videoElem) {
+        const videoElement = BrowserCodeReader.createVideoElement(videoElem);
+        // @todo the following lines should not always be done this way, should conditionally
+        // change according were we created the element or not
+        // Needed for iOS 11
+        videoElement.setAttribute('autoplay', 'true');
+        videoElement.setAttribute('muted', 'true');
+        videoElement.setAttribute('playsinline', 'true');
+        return videoElement;
+    }
+    /**
+     * Checks if and HTML image is loaded.
+     */
+    static isImageLoaded(img) {
+        // During the onload event, IE correctly identifies any images that
+        // weren't downloaded as not complete. Others should too. Gecko-based
+        // browsers act like NS4 in that they report this incorrectly.
+        if (!img.complete) {
+            return false;
+        }
+        // However, they do have two very useful properties: naturalWidth and
+        // naturalHeight. These give the true size of the image. If it failed
+        // to load, either of these should be zero.
+        if (img.naturalWidth === 0) {
+            return false;
+        }
+        // No other way of checking: assume it’s ok.
+        return true;
+    }
+    /**
+     * Creates a binaryBitmap based in a canvas.
+     *
+     * @param canvas HTML canvas element containing the image source draw.
+     */
+    static createBinaryBitmapFromCanvas(canvas) {
+        const luminanceSource = new HTMLCanvasElementLuminanceSource(canvas);
+        const hybridBinarizer = new HybridBinarizer(luminanceSource);
+        return new BinaryBitmap(hybridBinarizer);
+    }
+    /**
+     * Overwriting this allows you to manipulate the snapshot image in anyway you want before decode.
+     */
+    static drawImageOnCanvas(canvasElementContext, srcElement) {
+        canvasElementContext.drawImage(srcElement, 0, 0);
+    }
+    static getMediaElementDimensions(mediaElement) {
+        if (mediaElement instanceof HTMLVideoElement) {
+            return {
+                height: mediaElement.videoHeight,
+                width: mediaElement.videoWidth,
+            };
+        }
+        if (mediaElement instanceof HTMLImageElement) {
+            return {
+                height: mediaElement.naturalHeight || mediaElement.height,
+                width: mediaElement.naturalWidth || mediaElement.width,
+            };
+        }
+        throw new Error('Couldn\'t find the Source\'s dimensions!');
+    }
+    /**
+     * 🖌 Prepares the canvas for capture and scan frames.
+     */
+    static createCaptureCanvas(mediaElement) {
+        if (!mediaElement) {
+            throw new ArgumentException('Cannot create a capture canvas without a media element.');
+        }
+        if (typeof document === 'undefined') {
+            throw new Error('The page "Document" is undefined, make sure you\'re running in a browser.');
+        }
+        const canvasElement = document.createElement('canvas');
+        const { width, height } = BrowserCodeReader.getMediaElementDimensions(mediaElement);
+        canvasElement.style.width = width + 'px';
+        canvasElement.style.height = height + 'px';
+        canvasElement.width = width;
+        canvasElement.height = height;
+        return canvasElement;
+    }
+    /**
+     * Just tries to play the video and logs any errors.
+     * The play call is only made is the video is not already playing.
+     */
+    static tryPlayVideo(videoElement) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (videoElement === null || videoElement === void 0 ? void 0 : videoElement.ended) {
+                // tslint:disable-next-line:no-console
+                console.error('Trying to play video that has ended.');
+                return false;
+            }
+            if (BrowserCodeReader.isVideoPlaying(videoElement)) {
+                // tslint:disable-next-line:no-console
+                console.warn('Trying to play video that is already playing.');
+                return true;
+            }
+            try {
+                yield videoElement.play();
+                return true;
+            }
+            catch (error) {
+                // tslint:disable-next-line:no-console
+                console.warn('It was not possible to play the video.', error);
+                return false;
+            }
+        });
+    }
+    /**
+     * Creates a canvas and draws the current image frame from the media element on it.
+     *
+     * @param mediaElement HTML media element to extract an image frame from.
+     */
+    static createCanvasFromMediaElement(mediaElement) {
+        const canvas = BrowserCodeReader.createCaptureCanvas(mediaElement);
+        const ctx = canvas.getContext('2d');
+        if (!ctx) {
+            throw new Error('Couldn\'t find Canvas 2D Context.');
+        }
+        BrowserCodeReader.drawImageOnCanvas(ctx, mediaElement);
+        return canvas;
+    }
+    /**
+     * Creates a binaryBitmap based in some image source.
+     *
+     * @param mediaElement HTML element containing drawable image source.
+     */
+    static createBinaryBitmapFromMediaElem(mediaElement) {
+        const canvas = BrowserCodeReader.createCanvasFromMediaElement(mediaElement);
+        return BrowserCodeReader.createBinaryBitmapFromCanvas(canvas);
+    }
+    static destroyImageElement(imageElement) {
+        imageElement.src = '';
+        imageElement.removeAttribute('src');
+        imageElement = undefined;
+    }
+    /**
+     * Lists all the available video input devices.
+     */
+    static listVideoInputDevices() {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!hasNavigator()) {
+                throw new Error('Can\'t enumerate devices, navigator is not present.');
+            }
+            if (!canEnumerateDevices()) {
+                throw new Error('Can\'t enumerate devices, method not supported.');
+            }
+            const devices = yield navigator.mediaDevices.enumerateDevices();
+            const videoDevices = [];
+            for (const device of devices) {
+                const kind = device.kind === 'video' ? 'videoinput' : device.kind;
+                if (kind !== 'videoinput') {
+                    continue;
+                }
+                const deviceId = device.deviceId || device.id;
+                const label = device.label || `Video device ${videoDevices.length + 1}`;
+                const groupId = device.groupId;
+                const videoDevice = { deviceId, label, kind, groupId };
+                videoDevices.push(videoDevice);
+            }
+            return videoDevices;
+        });
+    }
+    /**
+     * Let's you find a device using it's Id.
+     */
+    static findDeviceById(deviceId) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const devices = yield BrowserCodeReader.listVideoInputDevices();
+            if (!devices) {
+                return;
+            }
+            return devices.find((x) => x.deviceId === deviceId);
+        });
+    }
+    /**
+     * Unbinds a HTML video src property.
+     */
+    static cleanVideoSource(videoElement) {
+        if (!videoElement) {
+            return;
+        }
+        // forgets about that element 😢
+        try {
+            videoElement.srcObject = null;
+        }
+        catch (err) {
+            videoElement.src = '';
+        }
+        if (videoElement) {
+            videoElement.removeAttribute('src');
+        }
+    }
+    /**
+     * Stops all media streams that are created.
+     */
+    static releaseAllStreams() {
+        if (BrowserCodeReader.streamTracker.length !== 0) {
+            // tslint:disable-next-line:no-console
+            BrowserCodeReader.streamTracker.forEach((mediaStream) => {
+                mediaStream.getTracks().forEach((track) => track.stop());
+            });
+        }
+        BrowserCodeReader.streamTracker = [];
+    }
+    /**
+     * Waits for a video to load and then hits play on it.
+     * To accomplish that, it binds listeners and callbacks to the video element.
+     *
+     * @param element The video element.
+     * @param callbackFn Callback invoked when the video is played.
+     */
+    static playVideoOnLoadAsync(element, timeout) {
+        return __awaiter(this, void 0, void 0, function* () {
+            // if canplay was already fired, we won't know when to play, so just give it a try
+            const isPlaying = yield BrowserCodeReader.tryPlayVideo(element);
+            if (isPlaying) {
+                return true;
+            }
+            return new Promise((resolve, reject) => {
+                // waits 3 seconds or rejects.
+                const timeoutId = setTimeout(() => {
+                    if (BrowserCodeReader.isVideoPlaying(element)) {
+                        // if video is playing then we had success, just ignore
+                        return;
+                    }
+                    reject(false);
+                    element.removeEventListener('canplay', videoCanPlayListener);
+                }, timeout);
+                /**
+                 * Should contain the current registered listener for video loaded-metadata,
+                 * used to unregister that listener when needed.
+                 */
+                const videoCanPlayListener = () => {
+                    BrowserCodeReader.tryPlayVideo(element).then((hasPlayed) => {
+                        clearTimeout(timeoutId);
+                        element.removeEventListener('canplay', videoCanPlayListener);
+                        resolve(hasPlayed);
+                    });
+                };
+                // both should be unregistered after called
+                element.addEventListener('canplay', videoCanPlayListener);
+            });
+        });
+    }
+    /**
+     * Sets the new stream and request a new decoding-with-delay.
+     *
+     * @param stream The stream to be shown in the video element.
+     * @param decodeFn A callback for the decode method.
+     */
+    static attachStreamToVideo(stream, preview, previewPlayTimeout = 5000) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const videoElement = BrowserCodeReader.prepareVideoElement(preview);
+            BrowserCodeReader.addVideoSource(videoElement, stream);
+            yield BrowserCodeReader.playVideoOnLoadAsync(videoElement, previewPlayTimeout);
+            return videoElement;
+        });
+    }
+    /**
+     * Returns a Promise that resolves when the given image element loads.
+     */
+    static _waitImageLoad(element) {
+        return new Promise((resolve, reject) => {
+            const timeout = 10000;
+            // waits 10 seconds or rejects.
+            const timeoutId = setTimeout(() => {
+                if (BrowserCodeReader.isImageLoaded(element)) {
+                    // if video is playing then we had success, just ignore
+                    return;
+                }
+                // removes the listener
+                element.removeEventListener('load', imageLoadedListener);
+                // rejects the load
+                reject();
+            }, timeout);
+            const imageLoadedListener = () => {
+                clearTimeout(timeoutId);
+                // removes the listener
+                element.removeEventListener('load', imageLoadedListener);
+                // resolves the load
+                resolve();
+            };
+            element.addEventListener('load', imageLoadedListener);
+        });
+    }
+    /**
+     * Checks if the `callbackFn` is defined, otherwise throws.
+     */
+    static checkCallbackFnOrThrow(callbackFn) {
+        if (!callbackFn) {
+            throw new ArgumentException('`callbackFn` is a required parameter, you cannot capture results without it.');
+        }
+    }
+    /**
+     * Standard method to dispose a media stream object.
+     */
+    static disposeMediaStream(stream) {
+        stream.getVideoTracks().forEach((x) => x.stop());
+        stream = undefined;
+    }
+    /**
+     * Gets the BinaryBitmap for ya! (and decodes it)
+     */
+    decode(element) {
+        // get binary bitmap for decode function
+        const canvas = BrowserCodeReader.createCanvasFromMediaElement(element);
+        return this.decodeFromCanvas(canvas);
+    }
+    /**
+     * Call the encapsulated readers decode
+     */
+    decodeBitmap(binaryBitmap) {
+        return this.reader.decode(binaryBitmap, this.hints);
+    }
+    /**
+     * Decodes some barcode from a canvas!
+     */
+    decodeFromCanvas(canvas) {
+        const binaryBitmap = BrowserCodeReader.createBinaryBitmapFromCanvas(canvas);
+        return this.decodeBitmap(binaryBitmap);
+    }
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromImageElement(source) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!source) {
+                throw new ArgumentException('An image element must be provided.');
+            }
+            const element = BrowserCodeReader.prepareImageElement(source);
+            // onLoad will remove it's callback once done
+            // we do not need to dispose or destroy the image
+            // since it came from the user
+            return yield this._decodeOnLoadImage(element);
+        });
+    }
+    /**
+     * Decodes an image from a URL.
+     */
+    decodeFromImageUrl(url) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!url) {
+                throw new ArgumentException('An URL must be provided.');
+            }
+            const element = BrowserCodeReader.prepareImageElement();
+            // loads the image.
+            element.src = url;
+            try {
+                // it waits the task so we can destroy the created image after
+                return yield this.decodeFromImageElement(element);
+            }
+            finally {
+                // we created this element, so we destroy it
+                BrowserCodeReader.destroyImageElement(element);
+            }
+        });
+    }
+    /**
+     * Continuously tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [previewElem] the video element in page where to show the video while
+     *  decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined, in
+     *  which case no video will be shown.
+     */
+    decodeFromConstraints(constraints, previewElem, callbackFn) {
+        return __awaiter(this, void 0, void 0, function* () {
+            BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+            const stream = yield this.getUserMedia(constraints);
+            try {
+                return yield this.decodeFromStream(stream, previewElem, callbackFn);
+            }
+            catch (error) {
+                BrowserCodeReader.disposeMediaStream(stream);
+                throw error;
+            }
+        });
+    }
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given constraints
+     * while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [preview] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromStream(stream, preview, callbackFn) {
+        return __awaiter(this, void 0, void 0, function* () {
+            BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+            const timeout = this.options.tryPlayVideoTimeout;
+            const video = yield BrowserCodeReader.attachStreamToVideo(stream, preview, timeout);
+            // IF we receive a stream from the user, it's not our job to dispose it
+            const finalizeCallback = () => {
+                // stops video tracks and releases the stream reference
+                BrowserCodeReader.disposeMediaStream(stream);
+                // this video was just a preview, so in order
+                // to release the stream we gotta stop showing
+                // it (the stream) in the video element
+                BrowserCodeReader.cleanVideoSource(video);
+            };
+            const originalControls = this.scan(video, callbackFn, finalizeCallback);
+            const videoTracks = stream.getVideoTracks();
+            const controls = Object.assign(Object.assign({}, originalControls), { stop() {
+                    originalControls.stop();
+                },
+                streamVideoConstraintsApply(constraints, trackFilter) {
+                    return __awaiter(this, void 0, void 0, function* () {
+                        const tracks = trackFilter ? videoTracks.filter(trackFilter) : videoTracks;
+                        for (const track of tracks) {
+                            yield track.applyConstraints(constraints);
+                        }
+                    });
+                },
+                streamVideoConstraintsGet(trackFilter) {
+                    return videoTracks.find(trackFilter).getConstraints();
+                },
+                streamVideoSettingsGet(trackFilter) {
+                    return videoTracks.find(trackFilter).getSettings();
+                },
+                streamVideoCapabilitiesGet(trackFilter) {
+                    return videoTracks.find(trackFilter).getCapabilities();
+                } });
+            const isTorchAvailable = BrowserCodeReader.mediaStreamIsTorchCompatible(stream);
+            if (isTorchAvailable) {
+                const torchTrack = videoTracks === null || videoTracks === void 0 ? void 0 : videoTracks.find((t) => BrowserCodeReader.mediaStreamIsTorchCompatibleTrack(t));
+                const switchTorch = (onOff) => __awaiter(this, void 0, void 0, function* () {
+                    yield BrowserCodeReader.mediaStreamSetTorch(torchTrack, onOff);
+                });
+                controls.switchTorch = switchTorch;
+                controls.stop = () => __awaiter(this, void 0, void 0, function* () {
+                    originalControls.stop();
+                    yield switchTorch(false);
+                });
+            }
+            return controls;
+        });
+    }
+    /**
+     * Continuously tries to decode the barcode from the device specified by device while showing
+     * the video in the specified video element.
+     *
+     * @param {string|null} [deviceId] the id of one of the devices obtained after calling
+     *  getVideoInputDevices. Can be undefined, in this case it will decode from one of the
+     *  available devices, preferring the main camera (environment facing) if available.
+     * @param {string|HTMLVideoElement|null} [video] the video element in page where to show the video
+     *  while decoding. Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeFromVideoDevice(deviceId, previewElem, callbackFn) {
+        return __awaiter(this, void 0, void 0, function* () {
+            BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+            let videoConstraints;
+            if (!deviceId) {
+                videoConstraints = { facingMode: 'environment' };
+            }
+            else {
+                videoConstraints = { deviceId: { exact: deviceId } };
+            }
+            const constraints = { video: videoConstraints };
+            return yield this.decodeFromConstraints(constraints, previewElem, callbackFn);
+        });
+    }
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeFromVideoElement(source, callbackFn) {
+        return __awaiter(this, void 0, void 0, function* () {
+            BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+            if (!source) {
+                throw new ArgumentException('A video element must be provided.');
+            }
+            // we do not create a video element
+            const element = BrowserCodeReader.prepareVideoElement(source);
+            const timeout = this.options.tryPlayVideoTimeout;
+            // plays the video
+            yield BrowserCodeReader.playVideoOnLoadAsync(element, timeout);
+            // starts decoding after played the video
+            return this.scan(element, callbackFn);
+        });
+    }
+    /**
+     * Decodes a video from a URL until it ends.
+     */
+    decodeFromVideoUrl(url, callbackFn) {
+        return __awaiter(this, void 0, void 0, function* () {
+            BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+            if (!url) {
+                throw new ArgumentException('An URL must be provided.');
+            }
+            // creates a new element
+            const element = BrowserCodeReader.prepareVideoElement();
+            // starts loading the video
+            element.src = url;
+            const finalizeCallback = () => {
+                // dispose created video element
+                BrowserCodeReader.cleanVideoSource(element);
+            };
+            const timeout = this.options.tryPlayVideoTimeout;
+            // plays the video
+            yield BrowserCodeReader.playVideoOnLoadAsync(element, timeout);
+            // starts decoding after played the video
+            const controls = this.scan(element, callbackFn, finalizeCallback);
+            return controls;
+        });
+    }
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param constraints the media stream constraints to get s valid media stream to decode from
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     *  The decoding result.
+     */
+    decodeOnceFromConstraints(constraints, videoSource) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const stream = yield this.getUserMedia(constraints);
+            return yield this.decodeOnceFromStream(stream, videoSource);
+        });
+    }
+    /**
+     * In one attempt, tries to decode the barcode from a stream obtained from the given
+     * constraints while showing the video in the specified video element.
+     *
+     * @param {MediaStream} [constraints] the media stream constraints to get s valid media stream to decode from
+     * @param {string|HTMLVideoElement} [video] the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromStream(stream, preview) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const receivedPreview = Boolean(preview);
+            const video = yield BrowserCodeReader.attachStreamToVideo(stream, preview);
+            try {
+                const result = yield this.scanOneResult(video);
+                return result;
+            }
+            finally {
+                if (!receivedPreview) {
+                    BrowserCodeReader.cleanVideoSource(video);
+                }
+            }
+        });
+    }
+    /**
+     * In one attempt, tries to decode the barcode from the device specified by deviceId
+     * while showing the video in the specified video element.
+     *
+     * @param deviceId the id of one of the devices obtained after calling getVideoInputDevices.
+     *  Can be undefined, in this case it will decode from one of the available devices,
+     *  preferring the main camera (environment facing) if available.
+     * @param videoSource the video element in page where to show the video while decoding.
+     *  Can be either an element id or directly an HTMLVideoElement. Can be undefined,
+     *  in which case no video will be shown.
+     */
+    decodeOnceFromVideoDevice(deviceId, videoSource) {
+        return __awaiter(this, void 0, void 0, function* () {
+            let videoConstraints;
+            if (!deviceId) {
+                videoConstraints = { facingMode: 'environment' };
+            }
+            else {
+                videoConstraints = { deviceId: { exact: deviceId } };
+            }
+            const constraints = { video: videoConstraints };
+            return yield this.decodeOnceFromConstraints(constraints, videoSource);
+        });
+    }
+    /**
+     * Decodes something from an image HTML element.
+     */
+    decodeOnceFromVideoElement(source) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!source) {
+                throw new ArgumentException('A video element must be provided.');
+            }
+            // we do not create a video element
+            const element = BrowserCodeReader.prepareVideoElement(source);
+            const timeout = this.options.tryPlayVideoTimeout;
+            // plays the video
+            yield BrowserCodeReader.playVideoOnLoadAsync(element, timeout);
+            // starts decoding after played the video
+            return yield this.scanOneResult(element);
+        });
+    }
+    /**
+     * Decodes a video from a URL.
+     */
+    decodeOnceFromVideoUrl(url) {
+        return __awaiter(this, void 0, void 0, function* () {
+            if (!url) {
+                throw new ArgumentException('An URL must be provided.');
+            }
+            // creates a new element
+            const element = BrowserCodeReader.prepareVideoElement();
+            // starts loading the video
+            element.src = url;
+            const task = this.decodeOnceFromVideoElement(element);
+            try {
+                // it waits the task so we can destroy the created image after
+                return yield task;
+            }
+            finally {
+                // we created this element, so we destroy it
+                BrowserCodeReader.cleanVideoSource(element);
+            }
+        });
+    }
+    /**
+     * Tries to decode from the video input until it finds some value.
+     */
+    scanOneResult(element, retryIfNotFound = true, retryIfChecksumError = true, retryIfFormatError = true) {
+        return new Promise((resolve, reject) => {
+            // reuses the scan API, but returns at the first successful result
+            this.scan(element, (result, error, controls) => {
+                if (result) {
+                    // good result, returning
+                    resolve(result);
+                    controls.stop();
+                    return;
+                }
+                if (error) {
+                    // checks if it should retry
+                    if (error instanceof NotFoundException && retryIfNotFound) {
+                        return;
+                    }
+                    if (error instanceof ChecksumException && retryIfChecksumError) {
+                        return;
+                    }
+                    if (error instanceof FormatException && retryIfFormatError) {
+                        return;
+                    }
+                    // not re-trying
+                    controls.stop(); // stops scan loop
+                    reject(error); // returns the error
+                }
+            });
+        });
+    }
+    /**
+     * Continuously decodes from video input.
+     *
+     * @param element HTML element to scan/decode from. It will not be disposed or destroyed.
+     * @param callbackFn Called after every scan attempt, being it successful or errored.
+     * @param finalizeCallback Called after scan process reaches the end or stop is called.
+     */
+    scan(element, callbackFn, finalizeCallback) {
+        BrowserCodeReader.checkCallbackFnOrThrow(callbackFn);
+        /**
+         * The HTML canvas element, used to draw the video or image's frame for decoding.
+         */
+        let captureCanvas = BrowserCodeReader.createCaptureCanvas(element);
+        /**
+         * The HTML canvas element context.
+         */
+        let captureCanvasContext;
+        try {
+            captureCanvasContext = captureCanvas.getContext('2d', { willReadFrequently: true });
+        }
+        catch (e) {
+            captureCanvasContext = captureCanvas.getContext('2d');
+        }
+        // cannot proceed w/o this
+        if (!captureCanvasContext) {
+            throw new Error('Couldn\'t create canvas for visual element scan.');
+        }
+        const disposeCanvas = () => {
+            captureCanvasContext = undefined;
+            captureCanvas = undefined;
+        };
+        let stopScan = false;
+        let lastTimeoutId;
+        // can be called to break the scan loop
+        const stop = () => {
+            stopScan = true;
+            clearTimeout(lastTimeoutId);
+            disposeCanvas();
+            if (finalizeCallback) {
+                finalizeCallback();
+            }
+        };
+        // created for extensibility
+        const controls = { stop };
+        // this async loop allows infinite (or almost? maybe) scans
+        const loop = () => {
+            if (stopScan) {
+                // no need to clear timeouts as none was create yet in this scope.
+                return;
+            }
+            try {
+                BrowserCodeReader.drawImageOnCanvas(captureCanvasContext, element);
+                const result = this.decodeFromCanvas(captureCanvas);
+                callbackFn(result, undefined, controls);
+                lastTimeoutId = setTimeout(loop, this.options.delayBetweenScanSuccess);
+            }
+            catch (error) {
+                callbackFn(undefined, error, controls);
+                const isChecksumError = error instanceof ChecksumException;
+                const isFormatError = error instanceof FormatException;
+                const isNotFound = error instanceof NotFoundException;
+                if (isChecksumError || isFormatError || isNotFound) {
+                    // trying again
+                    lastTimeoutId = setTimeout(loop, this.options.delayBetweenScanAttempts);
+                    return;
+                }
+                // not trying again
+                disposeCanvas();
+                if (finalizeCallback) {
+                    finalizeCallback(error);
+                }
+            }
+        };
+        // starts the async loop
+        loop();
+        return controls;
+    }
+    /**
+     * Waits for the image to load and then tries to decode it.
+     */
+    _decodeOnLoadImage(element) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const isImageLoaded = BrowserCodeReader.isImageLoaded(element);
+            if (!isImageLoaded) {
+                yield BrowserCodeReader._waitImageLoad(element);
+            }
+            return this.decode(element);
+        });
+    }
+    /**
+     * Get MediaStream from browser to be used.
+     * @param constraints constraints the media stream constraints to get s valid media stream to decode from.
+     * @private For private use.
+     */
+    getUserMedia(constraints) {
+        return __awaiter(this, void 0, void 0, function* () {
+            const stream = yield navigator.mediaDevices.getUserMedia(constraints);
+            BrowserCodeReader.streamTracker.push(stream);
+            return stream;
+        });
+    }
+}
+/**
+ * Keeps track to created media streams.
+ * @private there is no need this array to be accessible from outside.
+ */
+BrowserCodeReader.streamTracker = [];
+//# sourceMappingURL=BrowserCodeReader.js.map
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserDatamatrixCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,14 @@
+import { DataMatrixReader } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+/**
+ * QR Code reader to use from browser.
+ */
+export class BrowserDatamatrixCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints, options) {
+        super(new DataMatrixReader(), hints, options);
+    }
+}
+//# sourceMappingURL=BrowserDatamatrixCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserDatamatrixCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserDatamatrixCodeReader.ts"],"names":[],"mappings":"AAAA,OAAO,EAAE,gBAAgB,EAAkB,MAAM,gBAAgB,CAAC;AAClE,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD;;GAEG;AACH,MAAM,OAAO,2BAA4B,SAAQ,iBAAiB;IAChE;;OAEG;IACH,YACE,KAAgC,EAChC,OAAmC;QAEnC,KAAK,CAAC,IAAI,gBAAgB,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;IAChD,CAAC;CACF"}
@@ -0,0 +1,14 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * Reader to be used for any One Dimension type barcode.
+ */
+export declare class BrowserMultiFormatOneDReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserBarcodeReader.
+     * @param {Map<DecodeHintType, any>} hints?
+     * @param options
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,16 @@
+import { MultiFormatOneDReader } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+/**
+ * Reader to be used for any One Dimension type barcode.
+ */
+export class BrowserMultiFormatOneDReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserBarcodeReader.
+     * @param {Map<DecodeHintType, any>} hints?
+     * @param options
+     */
+    constructor(hints, options) {
+        super(new MultiFormatOneDReader(hints), hints, options);
+    }
+}
+//# sourceMappingURL=BrowserMultiFormatOneDReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserMultiFormatOneDReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserMultiFormatOneDReader.ts"],"names":[],"mappings":"AAAA,OAAO,EAAkB,qBAAqB,EAAE,MAAM,gBAAgB,CAAC;AACvE,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD;;GAEG;AACH,MAAM,OAAO,4BAA6B,SAAQ,iBAAiB;IACjE;;;;OAIG;IACH,YAAmB,KAAgC,EAAE,OAAmC;QACtF,KAAK,CAAC,IAAI,qBAAqB,CAAC,KAAK,CAAC,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;IAC1D,CAAC;CACF"}
@@ -0,0 +1,17 @@
+import { BarcodeFormat, BinaryBitmap, DecodeHintType, MultiFormatReader, Result } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+export declare class BrowserMultiFormatReader extends BrowserCodeReader {
+    set possibleFormats(formats: BarcodeFormat[]);
+    protected readonly reader: MultiFormatReader;
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+    /**
+     * Overwrite decodeBitmap to call decodeWithState, which will pay
+     * attention to the hints set in the constructor function
+     */
+    decodeBitmap(binaryBitmap: BinaryBitmap): Result;
+    /**
+     * Allows to change hints in runtime.
+     */
+    setHints(hints: Map<DecodeHintType, any>): void;
+}
@@ -0,0 +1,29 @@
+import { DecodeHintType, MultiFormatReader, } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+export class BrowserMultiFormatReader extends BrowserCodeReader {
+    constructor(hints, options) {
+        const reader = new MultiFormatReader();
+        reader.setHints(hints);
+        super(reader, hints, options);
+        this.reader = reader;
+    }
+    set possibleFormats(formats) {
+        this.hints.set(DecodeHintType.POSSIBLE_FORMATS, formats);
+        this.reader.setHints(this.hints);
+    }
+    /**
+     * Overwrite decodeBitmap to call decodeWithState, which will pay
+     * attention to the hints set in the constructor function
+     */
+    decodeBitmap(binaryBitmap) {
+        return this.reader.decodeWithState(binaryBitmap);
+    }
+    /**
+     * Allows to change hints in runtime.
+     */
+    setHints(hints) {
+        this.hints = hints;
+        this.reader.setHints(this.hints);
+    }
+}
+//# sourceMappingURL=BrowserMultiFormatReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserMultiFormatReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserMultiFormatReader.ts"],"names":[],"mappings":"AAAA,OAAO,EAGL,cAAc,EACd,iBAAiB,GAElB,MAAM,gBAAgB,CAAC;AACxB,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD,MAAM,OAAO,wBAAyB,SAAQ,iBAAiB;IAS7D,YACE,KAAgC,EAChC,OAAmC;QAEnC,MAAM,MAAM,GAAG,IAAI,iBAAiB,EAAE,CAAC;QACvC,MAAM,CAAC,QAAQ,CAAC,KAAK,CAAC,CAAC;QACvB,KAAK,CAAC,MAAM,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;QAC9B,IAAI,CAAC,MAAM,GAAG,MAAM,CAAC;IACvB,CAAC;IAfD,IAAI,eAAe,CAAC,OAAwB;QAC1C,IAAI,CAAC,KAAK,CAAC,GAAG,CAAC,cAAc,CAAC,gBAAgB,EAAE,OAAO,CAAC,CAAC;QACzD,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IACnC,CAAC;IAcD;;;OAGG;IACI,YAAY,CAAC,YAA0B;QAC5C,OAAO,IAAI,CAAC,MAAM,CAAC,eAAe,CAAC,YAAY,CAAC,CAAC;IACnD,CAAC;IAED;;OAEG;IACI,QAAQ,CAAC,KAA+B;QAC7C,IAAI,CAAC,KAAK,GAAG,KAAK,CAAC;QACnB,IAAI,CAAC,MAAM,CAAC,QAAQ,CAAC,IAAI,CAAC,KAAK,CAAC,CAAC;IACnC,CAAC;CACF"}
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserPDF417Reader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserPDF417Reader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,14 @@
+import { PDF417Reader } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+/**
+ * QR Code reader to use from browser.
+ */
+export class BrowserPDF417Reader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserPDF417Reader.
+     */
+    constructor(hints, options) {
+        super(new PDF417Reader(), hints, options);
+    }
+}
+//# sourceMappingURL=BrowserPDF417Reader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserPDF417Reader.js","sourceRoot":"","sources":["../../../src/readers/BrowserPDF417Reader.ts"],"names":[],"mappings":"AAAA,OAAO,EAAkB,YAAY,EAAE,MAAM,gBAAgB,CAAC;AAC9D,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD;;GAEG;AACH,MAAM,OAAO,mBAAoB,SAAQ,iBAAiB;IACxD;;OAEG;IACH,YACE,KAAgC,EAChC,OAAmC;QAEnC,KAAK,CAAC,IAAI,YAAY,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;IAC5C,CAAC;CACF"}
@@ -0,0 +1,12 @@
+import { DecodeHintType } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+import { IBrowserCodeReaderOptions } from './IBrowserCodeReaderOptions';
+/**
+ * QR Code reader to use from browser.
+ */
+export declare class BrowserQRCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints?: Map<DecodeHintType, any>, options?: IBrowserCodeReaderOptions);
+}
@@ -0,0 +1,14 @@
+import { QRCodeReader } from '@zxing/library';
+import { BrowserCodeReader } from './BrowserCodeReader';
+/**
+ * QR Code reader to use from browser.
+ */
+export class BrowserQRCodeReader extends BrowserCodeReader {
+    /**
+     * Creates an instance of BrowserQRCodeReader.
+     */
+    constructor(hints, options) {
+        super(new QRCodeReader(), hints, options);
+    }
+}
+//# sourceMappingURL=BrowserQRCodeReader.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserQRCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserQRCodeReader.ts"],"names":[],"mappings":"AAAA,OAAO,EAAkB,YAAY,EAAE,MAAM,gBAAgB,CAAC;AAC9D,OAAO,EAAE,iBAAiB,EAAE,MAAM,qBAAqB,CAAC;AAGxD;;GAEG;AACH,MAAM,OAAO,mBAAoB,SAAQ,iBAAiB;IACxD;;OAEG;IACH,YACE,KAAgC,EAChC,OAAmC;QAEnC,KAAK,CAAC,IAAI,YAAY,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC,CAAC;IAC5C,CAAC;CACF"}
@@ -0,0 +1,8 @@
+export interface IBrowserCodeReaderOptions {
+    /** Delay time between subsequent successful decode results. */
+    delayBetweenScanSuccess?: number;
+    /** Delay time between decode attempts made by the scanner. */
+    delayBetweenScanAttempts?: number;
+    /** Timeout for waiting the video 'canplay' event. */
+    tryPlayVideoTimeout?: number;
+}
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=IBrowserCodeReaderOptions.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"IBrowserCodeReaderOptions.js","sourceRoot":"","sources":["../../../src/readers/IBrowserCodeReaderOptions.ts"],"names":[],"mappings":""}
@@ -0,0 +1,47 @@
+import { EncodeHintType } from '@zxing/library';
+declare abstract class BrowserCodeSvgWriter {
+    /**
+     * Default quiet zone in pixels.
+     */
+    private static readonly QUIET_ZONE_SIZE;
+    /**
+     * SVG markup NameSpace
+     */
+    private static readonly SVG_NS;
+    /**
+     * A HTML container element for the image.
+     */
+    private containerElement;
+    /**
+     * Constructs. 😉
+     */
+    constructor(containerElement: string | HTMLElement);
+    /**
+     * Writes the QR code to a SVG and renders it in the container.
+     */
+    write(contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): SVGSVGElement;
+    /**
+     * Creates a SVG element.
+     */
+    protected createSVGElement(w: number, h: number): SVGSVGElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgPathPlaceholderElement(w: number, h: number): SVGPathElement;
+    /**
+     * Creates a SVG rect.
+     */
+    protected createSvgRectElement(x: number, y: number, w: number, h: number): SVGRectElement;
+    /**
+     * Encodes the content to a Barcode type.
+     */
+    private encode;
+    /**
+     * Renders the SVG in the container.
+     *
+     * @note the input matrix uses 0 == white, 1 == black. The output matrix
+     *  uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    private renderResult;
+}
+export { BrowserCodeSvgWriter };
@@ -0,0 +1,131 @@
+import { EncodeHintType, IllegalArgumentException, IllegalStateException, QRCodeDecoderErrorCorrectionLevel, QRCodeEncoder, } from '@zxing/library';
+const svgNs = 'http://www.w3.org/2000/svg';
+/**/
+class BrowserCodeSvgWriter {
+    /**
+     * Constructs. 😉
+     */
+    constructor(containerElement) {
+        if (typeof containerElement === 'string') {
+            const container = document.getElementById(containerElement);
+            if (!container) {
+                throw new Error(`Could not find a Container element with '${containerElement}'.`);
+            }
+            this.containerElement = container;
+        }
+        else {
+            this.containerElement = containerElement;
+        }
+    }
+    /**
+     * Writes the QR code to a SVG and renders it in the container.
+     */
+    write(contents, width, height, hints) {
+        if (contents.length === 0) {
+            throw new IllegalArgumentException('Found empty contents');
+        }
+        if (width < 0 || height < 0) {
+            throw new IllegalArgumentException('Requested dimensions are too small: ' + width + 'x' + height);
+        }
+        const quietZone = hints && hints.get(EncodeHintType.MARGIN) !== undefined
+            ? Number.parseInt(hints.get(EncodeHintType.MARGIN).toString(), 10)
+            : BrowserCodeSvgWriter.QUIET_ZONE_SIZE;
+        const code = this.encode(hints, contents);
+        return this.renderResult(code, width, height, quietZone);
+    }
+    /**
+     * Creates a SVG element.
+     */
+    createSVGElement(w, h) {
+        const el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'svg');
+        el.setAttributeNS(svgNs, 'width', h.toString());
+        el.setAttributeNS(svgNs, 'height', w.toString());
+        return el;
+    }
+    /**
+     * Creates a SVG rect.
+     */
+    createSvgPathPlaceholderElement(w, h) {
+        const el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'path');
+        el.setAttributeNS(svgNs, 'd', `M0 0h${w}v${h}H0z`);
+        el.setAttributeNS(svgNs, 'fill', 'none');
+        return el;
+    }
+    /**
+     * Creates a SVG rect.
+     */
+    createSvgRectElement(x, y, w, h) {
+        const el = document.createElementNS(BrowserCodeSvgWriter.SVG_NS, 'rect');
+        el.setAttributeNS(svgNs, 'x', x.toString());
+        el.setAttributeNS(svgNs, 'y', y.toString());
+        el.setAttributeNS(svgNs, 'height', w.toString());
+        el.setAttributeNS(svgNs, 'width', h.toString());
+        el.setAttributeNS(svgNs, 'fill', '#000000');
+        return el;
+    }
+    /**
+     * Encodes the content to a Barcode type.
+     */
+    encode(hints, contents) {
+        let errorCorrectionLevel = QRCodeDecoderErrorCorrectionLevel.L;
+        if (hints && hints.get(EncodeHintType.ERROR_CORRECTION) !== undefined) {
+            const correctionStr = hints.get(EncodeHintType.ERROR_CORRECTION).toString();
+            errorCorrectionLevel = QRCodeDecoderErrorCorrectionLevel.fromString(correctionStr);
+        }
+        const code = QRCodeEncoder.encode(contents, errorCorrectionLevel, hints);
+        return code;
+    }
+    /**
+     * Renders the SVG in the container.
+     *
+     * @note the input matrix uses 0 == white, 1 == black. The output matrix
+     *  uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    renderResult(code, width /*int*/, height /*int*/, quietZone /*int*/) {
+        // if (this.format && format != this.format) {
+        //   throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format)
+        // }
+        const input = code.getMatrix();
+        if (input === null) {
+            throw new IllegalStateException();
+        }
+        const inputWidth = input.getWidth();
+        const inputHeight = input.getHeight();
+        const qrWidth = inputWidth + (quietZone * 2);
+        const qrHeight = inputHeight + (quietZone * 2);
+        const outputWidth = Math.max(width, qrWidth);
+        const outputHeight = Math.max(height, qrHeight);
+        const multiple = Math.min(Math.floor(outputWidth / qrWidth), Math.floor(outputHeight / qrHeight));
+        // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
+        // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
+        // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
+        // handle all the padding from 100x100 (the actual QR) up to 200x160.
+        const leftPadding = Math.floor((outputWidth - (inputWidth * multiple)) / 2);
+        const topPadding = Math.floor((outputHeight - (inputHeight * multiple)) / 2);
+        const svgElement = this.createSVGElement(outputWidth, outputHeight);
+        const placeholder = this.createSvgPathPlaceholderElement(width, height);
+        svgElement.appendChild(placeholder);
+        this.containerElement.appendChild(svgElement);
+        // 2D loop
+        for (let inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
+            // Write the contents of this row of the barcode
+            for (let inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
+                if (input.get(inputX, inputY) === 1) {
+                    const svgRectElement = this.createSvgRectElement(outputX, outputY, multiple, multiple);
+                    svgElement.appendChild(svgRectElement);
+                }
+            }
+        }
+        return svgElement;
+    }
+}
+/**
+ * Default quiet zone in pixels.
+ */
+BrowserCodeSvgWriter.QUIET_ZONE_SIZE = 4;
+/**
+ * SVG markup NameSpace
+ */
+BrowserCodeSvgWriter.SVG_NS = 'http://www.w3.org/2000/svg';
+export { BrowserCodeSvgWriter };
+//# sourceMappingURL=BrowserCodeSvgWriter.js.map
@@ -0,0 +1 @@
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@@ -0,0 +1,39 @@
+import { EncodeHintType } from '@zxing/library';
+declare class BrowserQRCodeSvgWriter {
+    private static readonly QUIET_ZONE_SIZE;
+    /**
+     * Writes and renders a QRCode SVG element.
+     *
+     * @param contents
+     * @param width
+     * @param height
+     * @param hints
+     */
+    write(contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): SVGSVGElement;
+    /**
+     * Renders the result and then appends it to the DOM.
+     */
+    writeToDom(containerElement: string | HTMLElement, contents: string, width: number, height: number, hints?: Map<EncodeHintType, any>): void;
+    /**
+     * Note that the input matrix uses 0 == white, 1 == black.
+     * The output matrix uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    private renderResult;
+    /**
+     * Creates a SVG element.
+     *
+     * @param w SVG's width attribute
+     * @param h SVG's height attribute
+     */
+    private createSVGElement;
+    /**
+     * Creates a SVG rect element.
+     *
+     * @param x Element's x coordinate
+     * @param y Element's y coordinate
+     * @param w Element's width attribute
+     * @param h Element's height attribute
+     */
+    private createSvgRectElement;
+}
+export { BrowserQRCodeSvgWriter };
@@ -0,0 +1,122 @@
+import { EncodeHintType, IllegalArgumentException, IllegalStateException, QRCodeDecoderErrorCorrectionLevel, QRCodeEncoder, } from '@zxing/library';
+const svgNs = 'http://www.w3.org/2000/svg';
+/**/
+class BrowserQRCodeSvgWriter {
+    /**
+     * Writes and renders a QRCode SVG element.
+     *
+     * @param contents
+     * @param width
+     * @param height
+     * @param hints
+     */
+    write(contents, width, height, hints) {
+        if (contents.length === 0) {
+            throw new IllegalArgumentException('Found empty contents');
+        }
+        // if (format != BarcodeFormat.QR_CODE) {
+        //   throw new IllegalArgumentException("Can only encode QR_CODE, but got " + format)
+        // }
+        if (width < 0 || height < 0) {
+            throw new IllegalArgumentException('Requested dimensions are too small: ' + width + 'x' + height);
+        }
+        let errorCorrectionLevel = QRCodeDecoderErrorCorrectionLevel.L;
+        let quietZone = BrowserQRCodeSvgWriter.QUIET_ZONE_SIZE;
+        if (hints) {
+            if (undefined !== hints.get(EncodeHintType.ERROR_CORRECTION)) {
+                const correctionStr = hints.get(EncodeHintType.ERROR_CORRECTION).toString();
+                errorCorrectionLevel = QRCodeDecoderErrorCorrectionLevel.fromString(correctionStr);
+            }
+            if (undefined !== hints.get(EncodeHintType.MARGIN)) {
+                quietZone = Number.parseInt(hints.get(EncodeHintType.MARGIN).toString(), 10);
+            }
+        }
+        const code = QRCodeEncoder.encode(contents, errorCorrectionLevel, hints);
+        return this.renderResult(code, width, height, quietZone);
+    }
+    /**
+     * Renders the result and then appends it to the DOM.
+     */
+    writeToDom(containerElement, contents, width, height, hints) {
+        if (typeof containerElement === 'string') {
+            const targetEl = document.querySelector(containerElement);
+            if (!targetEl) {
+                throw new Error('Could no find the target HTML element.');
+            }
+            containerElement = targetEl;
+        }
+        const svgElement = this.write(contents, width, height, hints);
+        if (containerElement instanceof HTMLElement) {
+            containerElement.appendChild(svgElement);
+        }
+    }
+    /**
+     * Note that the input matrix uses 0 == white, 1 == black.
+     * The output matrix uses 0 == black, 255 == white (i.e. an 8 bit greyscale bitmap).
+     */
+    renderResult(code, width /*int*/, height /*int*/, quietZone /*int*/) {
+        const input = code.getMatrix();
+        if (input === null) {
+            throw new IllegalStateException();
+        }
+        const inputWidth = input.getWidth();
+        const inputHeight = input.getHeight();
+        const qrWidth = inputWidth + (quietZone * 2);
+        const qrHeight = inputHeight + (quietZone * 2);
+        const outputWidth = Math.max(width, qrWidth);
+        const outputHeight = Math.max(height, qrHeight);
+        const multiple = Math.min(Math.floor(outputWidth / qrWidth), Math.floor(outputHeight / qrHeight));
+        // Padding includes both the quiet zone and the extra white pixels to accommodate the requested
+        // dimensions. For example, if input is 25x25 the QR will be 33x33 including the quiet zone.
+        // If the requested size is 200x160, the multiple will be 4, for a QR of 132x132. These will
+        // handle all the padding from 100x100 (the actual QR) up to 200x160.
+        const leftPadding = Math.floor((outputWidth - (inputWidth * multiple)) / 2);
+        const topPadding = Math.floor((outputHeight - (inputHeight * multiple)) / 2);
+        const svgElement = this.createSVGElement(outputWidth, outputHeight);
+        for (let inputY = 0, outputY = topPadding; inputY < inputHeight; inputY++, outputY += multiple) {
+            // Write the contents of this row of the barcode
+            for (let inputX = 0, outputX = leftPadding; inputX < inputWidth; inputX++, outputX += multiple) {
+                if (input.get(inputX, inputY) === 1) {
+                    const svgRectElement = this.createSvgRectElement(outputX, outputY, multiple, multiple);
+                    svgElement.appendChild(svgRectElement);
+                }
+            }
+        }
+        return svgElement;
+    }
+    /**
+     * Creates a SVG element.
+     *
+     * @param w SVG's width attribute
+     * @param h SVG's height attribute
+     */
+    createSVGElement(w, h) {
+        const svgElement = document.createElementNS(svgNs, 'svg');
+        const width = w.toString();
+        const height = h.toString();
+        svgElement.setAttribute('height', height);
+        svgElement.setAttribute('width', width);
+        svgElement.setAttribute('viewBox', "0 0 " + width + " " + height);
+        return svgElement;
+    }
+    /**
+     * Creates a SVG rect element.
+     *
+     * @param x Element's x coordinate
+     * @param y Element's y coordinate
+     * @param w Element's width attribute
+     * @param h Element's height attribute
+     */
+    createSvgRectElement(x, y, w, h) {
+        const rect = document.createElementNS(svgNs, 'rect');
+        rect.setAttribute('x', x.toString());
+        rect.setAttribute('y', y.toString());
+        rect.setAttribute('height', w.toString());
+        rect.setAttribute('width', h.toString());
+        rect.setAttribute('fill', '#000000');
+        return rect;
+    }
+}
+BrowserQRCodeSvgWriter.QUIET_ZONE_SIZE = 4;
+export { BrowserQRCodeSvgWriter };
+//# sourceMappingURL=BrowserQRCodeSvgWriter.js.map
@@ -0,0 +1 @@
+{"version":3,"file":"BrowserQRCodeSvgWriter.js","sourceRoot":"","sources":["../../../src/writers/BrowserQRCodeSvgWriter.ts"],"names":[],"mappings":"AAAA,OAAO,EACL,cAAc,EACd,wBAAwB,EACxB,qBAAqB,EACrB,iCAAiC,EACjC,aAAa,GAEd,MAAM,gBAAgB,CAAC;AAExB,MAAM,KAAK,GAAG,4BAA4B,CAAC;AAE3C,IAAI;AACJ,MAAM,sBAAsB;IAI1B;;;;;;;OAOG;IACI,KAAK,CACV,QAAgB,EAChB,KAAa,EACb,MAAc,EACd,KAAgC;QAGhC,IAAI,QAAQ,CAAC,MAAM,KAAK,CAAC,EAAE;YACzB,MAAM,IAAI,wBAAwB,CAAC,sBAAsB,CAAC,CAAC;SAC5D;QAED,yCAAyC;QACzC,qFAAqF;QACrF,IAAI;QAEJ,IAAI,KAAK,GAAG,CAAC,IAAI,MAAM,GAAG,CAAC,EAAE;YAC3B,MAAM,IAAI,wBAAwB,CAAC,sCAAsC,GAAG,KAAK,GAAG,GAAG,GAAG,MAAM,CAAC,CAAC;SACnG;QAED,IAAI,oBAAoB,GAAG,iCAAiC,CAAC,CAAC,CAAC;QAC/D,IAAI,SAAS,GAAG,sBAAsB,CAAC,eAAe,CAAC;QAEvD,IAAI,KAAK,EAAE;YAET,IAAI,SAAS,KAAK,KAAK,CAAC,GAAG,CAAC,cAAc,CAAC,gBAAgB,CAAC,EAAE;gBAC5D,MAAM,aAAa,GAAG,KAAK,CAAC,GAAG,CAAC,cAAc,CAAC,gBAAgB,CAAC,CAAC,QAAQ,EAAE,CAAC;gBAC5E,oBAAoB,GAAG,iCAAiC,CAAC,UAAU,CAAC,aAAa,CAAC,CAAC;aACpF;YAED,IAAI,SAAS,KAAK,KAAK,CAAC,GAAG,CAAC,cAAc,CAAC,MAAM,CAAC,EAAE;gBAClD,SAAS,GAAG,MAAM,CAAC,QAAQ,CAAC,KAAK,CAAC,GAAG,CAAC,cAAc,CAAC,MAAM,CAAC,CAAC,QAAQ,EAAE,EAAE,EAAE,CAAC,CAAC;aAC9E;SACF;QAED,MAAM,IAAI,GAAG,aAAa,CAAC,MAAM,CAAC,QAAQ,EAAE,oBAAoB,EAAE,KAAK,CAAC,CAAC;QAEzE,OAAO,IAAI,CAAC,YAAY,CAAC,IAAI,EAAE,KAAK,EAAE,MAAM,EAAE,SAAS,CAAC,CAAC;IAC3D,CAAC;IAED;;OAEG;IACI,UAAU,CACf,gBAAsC,EACtC,QAAgB,EAChB,KAAa,EACb,MAAc,EACd,KAAgC;QAGhC,IAAI,OAAO,gBAAgB,KAAK,QAAQ,EAAE;YACxC,MAAM,QAAQ,GAAG,QAAQ,CAAC,aAAa,CAAc,gBAAgB,CAAC,CAAC;YACvE,IAAI,CAAC,QAAQ,EAAE;gBAAE,MAAM,IAAI,KAAK,CAAC,wCAAwC,CAAC,CAAC;aAAE;YAC7E,gBAAgB,GAAG,QAAQ,CAAC;SAC7B;QAED,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,QAAQ,EAAE,KAAK,EAAE,MAAM,EAAE,KAAK,CAAC,CAAC;QAE9D,IAAI,gBAAgB,YAAY,WAAW,EAAE;YAC3C,gBAAgB,CAAC,WAAW,CAAC,UAAU,CAAC,CAAC;SAC1C;IACH,CAAC;IAED;;;OAGG;IACK,YAAY,CAClB,IAAyB,EACzB,KAAa,CAAC,OAAO,EACrB,MAAc,CAAC,OAAO,EACtB,SAAiB,CAAC,OAAO;QAGzB,MAAM,KAAK,GAAG,IAAI,CAAC,SAAS,EAAE,CAAC;QAE/B,IAAI,KAAK,KAAK,IAAI,EAAE;YAClB,MAAM,IAAI,qBAAqB,EAAE,CAAC;SACnC;QAED,MAAM,UAAU,GAAG,KAAK,CAAC,QAAQ,EAAE,CAAC;QACpC,MAAM,WAAW,GAAG,KAAK,CAAC,SAAS,EAAE,CAAC;QACtC,MAAM,OAAO,GAAG,UAAU,GAAG,CAAC,SAAS,GAAG,CAAC,CAAC,CAAC;QAC7C,MAAM,QAAQ,GAAG,WAAW,GAAG,CAAC,SAAS,GAAG,CAAC,CAAC,CAAC;QAC/C,MAAM,WAAW,GAAG,IAAI,CAAC,GAAG,CAAC,KAAK,EAAE,OAAO,CAAC,CAAC;QAC7C,MAAM,YAAY,GAAG,IAAI,CAAC,GAAG,CAAC,MAAM,EAAE,QAAQ,CAAC,CAAC;QAEhD,MAAM,QAAQ,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,KAAK,CAAC,WAAW,GAAG,OAAO,CAAC,EAAE,IAAI,CAAC,KAAK,CAAC,YAAY,GAAG,QAAQ,CAAC,CAAC,CAAC;QAElG,+FAA+F;QAC/F,4FAA4F;QAC5F,4FAA4F;QAC5F,qEAAqE;QACrE,MAAM,WAAW,GAAG,IAAI,CAAC,KAAK,CAAC,CAAC,WAAW,GAAG,CAAC,UAAU,GAAG,QAAQ,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;QAC5E,MAAM,UAAU,GAAG,IAAI,CAAC,KAAK,CAAC,CAAC,YAAY,GAAG,CAAC,WAAW,GAAG,QAAQ,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;QAE7E,MAAM,UAAU,GAAG,IAAI,CAAC,gBAAgB,CAAC,WAAW,EAAE,YAAY,CAAC,CAAC;QAEpE,KAAK,IAAI,MAAM,GAAG,CAAC,EAAE,OAAO,GAAG,UAAU,EAAE,MAAM,GAAG,WAAW,EAAE,MAAM,EAAE,EAAE,OAAO,IAAI,QAAQ,EAAE;YAC9F,gDAAgD;YAChD,KAAK,IAAI,MAAM,GAAG,CAAC,EAAE,OAAO,GAAG,WAAW,EAAE,MAAM,GAAG,UAAU,EAAE,MAAM,EAAE,EAAE,OAAO,IAAI,QAAQ,EAAE;gBAC9F,IAAI,KAAK,CAAC,GAAG,CAAC,MAAM,EAAE,MAAM,CAAC,KAAK,CAAC,EAAE;oBACnC,MAAM,cAAc,GAAG,IAAI,CAAC,oBAAoB,CAAC,OAAO,EAAE,OAAO,EAAE,QAAQ,EAAE,QAAQ,CAAC,CAAC;oBACvF,UAAU,CAAC,WAAW,CAAC,cAAc,CAAC,CAAC;iBACxC;aACF;SACF;QAED,OAAO,UAAU,CAAC;IACpB,CAAC;IAED;;;;;OAKG;IACK,gBAAgB,CAAC,CAAS,EAAE,CAAS;QAE3C,MAAM,UAAU,GAAG,QAAQ,CAAC,eAAe,CAAC,KAAK,EAAE,KAAK,CAAC,CAAC;QAC1D,MAAM,KAAK,GAAG,CAAC,CAAC,QAAQ,EAAE,CAAC;QAC3B,MAAM,MAAM,GAAG,CAAC,CAAC,QAAQ,EAAE,CAAC;QAC5B,UAAU,CAAC,YAAY,CAAC,QAAQ,EAAE,MAAM,CAAC,CAAC;QAC1C,UAAU,CAAC,YAAY,CAAC,OAAO,EAAE,KAAK,CAAC,CAAC;QACxC,UAAU,CAAC,YAAY,CAAC,SAAS,EAAE,MAAM,GAAG,KAAK,GAAG,GAAG,GAAG,MAAM,CAAC,CAAC;QAElE,OAAO,UAAU,CAAC;IACpB,CAAC;IAED;;;;;;;OAOG;IACK,oBAAoB,CAAC,CAAS,EAAE,CAAS,EAAE,CAAS,EAAE,CAAS;QAErE,MAAM,IAAI,GAAG,QAAQ,CAAC,eAAe,CAAC,KAAK,EAAE,MAAM,CAAC,CAAC;QAErD,IAAI,CAAC,YAAY,CAAC,GAAG,EAAE,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC;QACrC,IAAI,CAAC,YAAY,CAAC,GAAG,EAAE,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC;QACrC,IAAI,CAAC,YAAY,CAAC,QAAQ,EAAE,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC;QAC1C,IAAI,CAAC,YAAY,CAAC,OAAO,EAAE,CAAC,CAAC,QAAQ,EAAE,CAAC,CAAC;QACzC,IAAI,CAAC,YAAY,CAAC,MAAM,EAAE,SAAS,CAAC,CAAC;QAErC,OAAO,IAAI,CAAC;IACd,CAAC;;AA9JuB,sCAAe,GAAG,CAAC,CAAC;AAiK9C,OAAO,EAAE,sBAAsB,EAAE,CAAC"}
@@ -0,0 +1,6 @@
+import { Exception, Result } from '@zxing/library';
+import { IScannerControls } from './IScannerControls';
+/**
+ * Callback format for continuous decode scan.
+ */
+export declare type DecodeContinuouslyCallback = (result: Result | undefined, error: Exception | undefined, controls: IScannerControls) => void;
@@ -0,0 +1,2 @@
+export {};
+//# sourceMappingURL=DecodeContinuouslyCallback.js.map
--- a/Show More
+++ b/Show More
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"DecodeContinuouslyCallback.js","sourceRoot":"","sources":["../../../src/common/DecodeContinuouslyCallback.ts"],"names":[],"mappings":""}`
				`@@ -0,0 +1 @@`
				{"version":3,"file":"HTMLCanvasElementLuminanceSource.js","sourceRoot":"","sources":["../../../src/common/HTMLCanvasElementLuminanceSource.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAIwB;AAExB,IAAI;AACJ;IAAsD,oDAAe;IA+CnE,0CAA2B,MAAyB;QAApD,YACE,kBAAM,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,SAEnC;QAH0B,YAAM,GAAN,MAAM,CAAmB;QAF5C,uBAAiB,GAAuB,IAAI,CAAC;QAInD,KAAI,CAAC,MAAM,GAAG,gCAAgC,CAAC,6BAA6B,CAAC,MAAM,CAAC,CAAC;;IACvF,CAAC;IA9Cc,8DAA6B,GAA5C,UAA6C,MAAyB;QACpE,IAAI,SAAS,CAAC;QAEd,IAAI;YACF,SAAS,GAAG,MAAM,CAAC,UAAU,CAAC,IAAI,EAAE,EAAE,kBAAkB,EAAE,IAAI,EAAE,CAAC,CAAC;SACnE;QAAC,OAAO,CAAC,EAAE;YACV,SAAS,GAAG,MAAM,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC;SACrC;QAED,IAAI,CAAC,SAAS,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,+BAA+B,CAAC,CAAC;SAAE;QACrE,IAAM,SAAS,GAAG,SAAS,CAAC,YAAY,CAAC,CAAC,EAAE,CAAC,EAAE,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,CAAC;QAC5E,OAAO,gCAAgC,CAAC,iBAAiB,CAAC,SAAS,CAAC,IAAI,EAAE,MAAM,CAAC,KAAK,EAAE,MAAM,CAAC,MAAM,CAAC,CAAC;IACzG,CAAC;IAEc,kDAAiB,GAAhC,UAAiC,WAA8B,EAAE,KAAa,EAAE,MAAc;QAC5F,IAAM,eAAe,GAAG,IAAI,iBAAiB,CAAC,KAAK,GAAG,MAAM,CAAC,CAAC;QAC9D,KAAK,IAAI,CAAC,GAAG,CAAC,EAAE,CAAC,GAAG,CAAC,EAAE,QAAM,GAAG,WAAW,CAAC,MAAM,EAAE,CAAC,GAAG,QAAM,EAAE,CAAC,IAAI,CAAC,EAAE,CAAC,EAAE,EAAE;YAC3E,IAAI,IAAI,SAAA,CAAC;YACT,IAAM,KAAK,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;YACjC,sGAAsG;YACtG,2FAA2F;YAC3F,mDAAmD;YACnD,IAAI,KAAK,KAAK,CAAC,EAAE;gBACf,IAAI,GAAG,IAAI,CAAC;aACb;iBAAM;gBACL,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,CAAC,CAAC;gBAC9B,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;gBAClC,IAAM,MAAM,GAAG,WAAW,CAAC,CAAC,GAAG,CAAC,CAAC,CAAC;gBAClC,sDAAsD;gBACtD,8DAA8D;gBAC9D,8CAA8C;gBAC9C,sCAAsC;gBACtC,IAAI,GAAG,CAAC,GAAG,GAAG,MAAM,GAAG,GAAG,GAAG,MAAM,GAAG,GAAG,GAAG,MAAM,GAAG,KAAK,CAAC,IAAI,EAAE,CAAC;aACnE;YACD,eAAe,CAAC,CAAC,CAAC,GAAG,IAAI,CAAC;SAC3B;QACD,OAAO,eAAe,CAAC;IACzB,CAAC;IAWM,iDAAM,GAAb,UAAc,CAAS,CAAC,OAAO,EAAE,GAAsB;QACrD,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,IAAI,IAAI,CAAC,SAAS,EAAE,EAAE;YAClC,MAAM,IAAI,kCAAwB,CAAC,sCAAsC,GAAG,CAAC,CAAC,CAAC;SAChF;QACD,IAAM,KAAK,GAAmB,IAAI,CAAC,QAAQ,EAAE,CAAC;QAC9C,IAAM,KAAK,GAAG,CAAC,GAAG,KAAK,CAAC;QACxB,IAAI,GAAG,KAAK,IAAI,EAAE;YAChB,GAAG,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,GAAG,KAAK,CAAC,CAAC;SAC/C;aAAM;YACL,IAAI,GAAG,CAAC,MAAM,GAAG,KAAK,EAAE;gBACtB,GAAG,GAAG,IAAI,iBAAiB,CAAC,KAAK,CAAC,CAAC;aACpC;YACD,6EAA6E;YAC7E,6BAA6B;YAC7B,GAAG,CAAC,GAAG,CAAC,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC,KAAK,EAAE,KAAK,GAAG,KAAK,CAAC,CAAC,CAAC;SAClD;QAED,OAAO,GAAG,CAAC;IACb,CAAC;IAEM,oDAAS,GAAhB;QACE,OAAO,IAAI,CAAC,MAAM,CAAC;IACrB,CAAC;IAEM,0DAAe,GAAtB;QACE,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,+CAAI,GAAX,UACE,IAAY,CAAC,OAAO,EACpB,GAAW,CAAC,OAAO,EACnB,KAAa,CAAC,OAAO,EACrB,MAAc,CAAC,OAAO;QAEtB,iBAAM,IAAI,YAAC,IAAI,EAAE,GAAG,EAAE,KAAK,EAAE,MAAM,CAAC,CAAC;QACrC,OAAO,IAAI,CAAC;IACd,CAAC;IAED;;;;OAIG;IACI,4DAAiB,GAAxB;QACE,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,iEAAsB,GAA7B;QACE,IAAI,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC;QACjB,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,mEAAwB,GAA/B;QACE,IAAI,CAAC,MAAM,CAAC,CAAC,EAAE,CAAC,CAAC;QACjB,OAAO,IAAI,CAAC;IACd,CAAC;IAEM,iDAAM,GAAb;QACE,OAAO,IAAI,iCAAuB,CAAC,IAAI,CAAC,CAAC;IAC3C,CAAC;IAEO,+DAAoB,GAA5B;QACE,IAAI,IAAI,KAAK,IAAI,CAAC,iBAAiB,EAAE;YACnC,IAAM,iBAAiB,GAAG,IAAI,CAAC,MAAM,CAAC,aAAa,CAAC,aAAa,CAAC,QAAQ,CAAC,CAAC;YAC5E,iBAAiB,CAAC,KAAK,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC;YAC5C,iBAAiB,CAAC,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC;YAC9C,IAAI,CAAC,iBAAiB,GAAG,iBAAiB,CAAC;SAC5C;QAED,OAAO,IAAI,CAAC,iBAAiB,CAAC;IAChC,CAAC;IAEO,iDAAM,GAAd,UAAe,KAAa;QAC1B,IAAM,iBAAiB,GAAG,IAAI,CAAC,oBAAoB,EAAE,CAAC;QACtD,IAAI,CAAC,iBAAiB,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,oCAAoC,CAAC,CAAC;SAAE;QAClF,IAAM,YAAY,GAAG,KAAK,GAAG,gCAAgC,CAAC,iBAAiB,CAAC;QAEhF,mDAAmD;QACnD,IAAM,KAAK,GAAG,IAAI,CAAC,MAAM,CAAC,KAAK,CAAC;QAChC,IAAM,MAAM,GAAG,IAAI,CAAC,MAAM,CAAC,MAAM,CAAC;QAClC,IAAM,QAAQ,GAAG,IAAI,CAAC,IAAI,CACxB,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,MAAM,CACrF,CAAC;QACF,IAAM,SAAS,GAAG,IAAI,CAAC,IAAI,CACzB,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,KAAK,GAAG,IAAI,CAAC,GAAG,CAAC,IAAI,CAAC,GAAG,CAAC,YAAY,CAAC,CAAC,GAAG,MAAM,CACrF,CAAC;QACF,iBAAiB,CAAC,KAAK,GAAG,QAAQ,CAAC;QACnC,iBAAiB,CAAC,MAAM,GAAG,SAAS,CAAC;QAErC,IAAM,WAAW,GAAG,iBAAiB,CAAC,UAAU,CAAC,IAAI,CAAC,CAAC;QACvD,IAAI,CAAC,WAAW,EAAE;YAAE,MAAM,IAAI,KAAK,CAAC,4CAA4C,CAAC,CAAC;SAAE;QAEpF,kEAAkE;QAClE,WAAW,CAAC,SAAS,CAAC,QAAQ,GAAG,CAAC,EAAE,SAAS,GAAG,CAAC,CAAC,CAAC;QACnD,WAAW,CAAC,MAAM,CAAC,YAAY,CAAC,CAAC;QACjC,WAAW,CAAC,SAAS,CAAC,IAAI,CAAC,MAAM,EAAE,KAAK,GAAG,CAAC,CAAC,EAAE,MAAM,GAAG,CAAC,CAAC,CAAC,CAAC;QAC5D,IAAI,CAAC,MAAM,GAAG,gCAAgC,CAAC,6BAA6B,CAAC,iBAAiB,CAAC,CAAC;QAChG,OAAO,IAAI,CAAC;IACd,CAAC;IApJc,kDAAiB,GAAG,IAAI,CAAC,EAAE,GAAG,GAAG,CAAC;IAqJnD,uCAAC;CAAA,AAvJD,CAAsD,yBAAe,GAuJpE;AAvJY,4EAAgC"}
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"HTMLVisualMediaElement.js","sourceRoot":"","sources":["../../../src/common/HTMLVisualMediaElement.ts"],"names":[],"mappings":""}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"IScannerControls.js","sourceRoot":"","sources":["../../../src/common/IScannerControls.ts"],"names":[],"mappings":""}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"navigator-utils.js","sourceRoot":"","sources":["../../../src/common/navigator-utils.ts"],"names":[],"mappings":";;;AAAA;;GAEG;AACH,SAAgB,YAAY;IAC1B,OAAO,OAAO,SAAS,KAAK,WAAW,CAAC;AAC1C,CAAC;AAFD,oCAEC;AACD;;GAEG;AACH,SAAS,uBAAuB;IAC9B,OAAO,YAAY,EAAE,IAAI,CAAC,CAAC,SAAS,CAAC,YAAY,CAAC;AACpD,CAAC;AACD;;GAEG;AACH,SAAgB,mBAAmB;IACjC,OAAO,CAAC,CAAC,CAAC,uBAAuB,EAAE,IAAI,SAAS,CAAC,YAAY,CAAC,gBAAgB,CAAC,CAAC;AAClF,CAAC;AAFD,kDAEC"}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"index.js","sourceRoot":"","sources":["../../src/index.ts"],"names":[],"mappings":";AAAA,aAAa;;;;;;;;;;;;;AAEb,OAAO;AACP,0CAA+C;AAAtC,wGAAA,aAAa,OAAA;AAEtB,SAAS;AACT,4EAA0D;AAC1D,kEAAgD;AAChD,4DAA0C;AAE1C,UAAU;AACV,mEAAiD;AACjD,yEAAuD;AACvD,8DAA4C;AAC5C,wEAAsD;AACtD,qEAAmD;AACnD,gEAA8C;AAC9C,gEAA8C;AAC9C,sEAAoD;AAEpD,UAAU;AACV,iEAA+C;AAC/C,mEAAiD"}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"BrowserAztecCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserAztecCodeReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAiE;AACjE,yDAAwD;AAGxD;;;;;GAKG;AACH;IAA4C,0CAAiB;IAC3D;;OAEG;IACH,gCACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,yBAAe,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC9C,CAAC;IACH,6BAAC;AAAD,CAAC,AAVD,CAA4C,qCAAiB,GAU5D;AAVY,wDAAsB"}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"BrowserDatamatrixCodeReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserDatamatrixCodeReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAkE;AAClE,yDAAwD;AAGxD;;GAEG;AACH;IAAiD,+CAAiB;IAChE;;OAEG;IACH,qCACE,KAAgC,EAChC,OAAmC;eAEnC,kBAAM,IAAI,0BAAgB,EAAE,EAAE,KAAK,EAAE,OAAO,CAAC;IAC/C,CAAC;IACH,kCAAC;AAAD,CAAC,AAVD,CAAiD,qCAAiB,GAUjE;AAVY,kEAA2B"}`
				`@@ -0,0 +1 @@`
				`{"version":3,"file":"BrowserMultiFormatOneDReader.js","sourceRoot":"","sources":["../../../src/readers/BrowserMultiFormatOneDReader.ts"],"names":[],"mappings":";;;;;;;;;;;;;;;;;;AAAA,0CAAuE;AACvE,yDAAwD;AAGxD;;GAEG;AACH;IAAkD,gDAAiB;IACjE;;;;OAIG;IACH,sCAAmB,KAAgC,EAAE,OAAmC;eACtF,kBAAM,IAAI,+BAAqB,CAAC,KAAK,CAAC,EAAE,KAAK,EAAE,OAAO,CAAC;IACzD,CAAC;IACH,mCAAC;AAAD,CAAC,AATD,CAAkD,qCAAiB,GASlE;AATY,oEAA4B"}`
				`@@ -0,0 +1 @@`
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