mirror of
https://github.com/serratus/quaggaJS.git
synced 2026-08-12 21:21:42 +08:00
Merge pull request #122 from serratus/feature/121
Recognizing EXIF orientation
This commit is contained in:
Christoph Oberhofer
@@ -24,7 +24,12 @@
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"objectLiteralComputedProperties": true
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},
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"globals": {
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"ENV": true
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"ENV": true,
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"beforeEach": true,
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"describe": true,
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"it": true,
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"expect": true,
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"sinon": true
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},
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"rules": {
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"no-unused-expressions": 1,
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@@ -1,7 +1,7 @@
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quaggaJS
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========
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- [Changelog](#changelog) (2016-04-24)
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- [Changelog](#changelog) (2016-08-15)
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- [Browser Support](#browser-support)
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- [Installing](#installing)
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- [Getting Started](#gettingstarted)
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@@ -636,6 +636,11 @@ on the ``singleChannel`` flag in the configuration when using ``decodeSingle``.
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## <a name="changelog">Changelog</a>
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### 2016-08-15
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- Features
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- Proper handling of EXIF orientation when using `Quagga.decodeSingle`
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(see [#121](https://github.com/serratus/quaggaJS/issues/121))
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### 2016-04-24
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- Features
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- EAN-13 extended codes can now be decoded (See
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Vendored
+1852
-1820
File diff suppressed because one or more lines are too long
Vendored
+3
-4
File diff suppressed because one or more lines are too long
@@ -35,7 +35,7 @@
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<div class="controls">
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<fieldset class="input-group">
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<input type="file" capture/>
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<input type="file" accept="image/*" capture="camera"/>
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<button>Rerun</button>
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</fieldset>
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<fieldset class="reader-config-group">
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+1636
-1832
File diff suppressed because one or more lines are too long
@@ -0,0 +1,146 @@
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// Scraped from https://github.com/exif-js/exif-js
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const ExifTags = {0x0112: "orientation"};
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export const AvailableTags = Object.keys(ExifTags).map(key => ExifTags[key]);
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export function findTagsInObjectURL(src, tags = AvailableTags) {
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if (/^blob\:/i.test(src)) {
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return objectURLToBlob(src)
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.then(readToBuffer)
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.then(buffer => findTagsInBuffer(buffer, tags));
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}
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return Promise.resolve(null);
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}
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export function base64ToArrayBuffer(dataUrl) {
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const base64 = dataUrl.replace(/^data\:([^\;]+)\;base64,/gmi, ''),
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binary = atob(base64),
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len = binary.length,
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buffer = new ArrayBuffer(len),
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view = new Uint8Array(buffer);
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for (let i = 0; i < len; i++) {
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view[i] = binary.charCodeAt(i);
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}
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return buffer;
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}
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function readToBuffer(blob) {
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return new Promise(resolve => {
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const fileReader = new FileReader();
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fileReader.onload = function(e) {
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return resolve(e.target.result);
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};
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fileReader.readAsArrayBuffer(blob);
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});
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}
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function objectURLToBlob(url) {
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return new Promise((resolve, reject) => {
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const http = new XMLHttpRequest();
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http.open("GET", url, true);
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http.responseType = "blob";
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http.onreadystatechange = function () {
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if (http.readyState === XMLHttpRequest.DONE && (http.status === 200 || http.status === 0)) {
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resolve(this.response);
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}
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};
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http.onerror = reject;
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http.send();
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});
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}
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export function findTagsInBuffer(file, selectedTags = AvailableTags) {
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const dataView = new DataView(file),
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length = file.byteLength,
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exifTags = selectedTags.reduce((result, selectedTag) => {
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const exifTag = Object.keys(ExifTags).filter(tag => ExifTags[tag] === selectedTag)[0];
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if (exifTag) {
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result[exifTag] = selectedTag;
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}
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return result;
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}, {});
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let offset = 2,
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marker;
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if ((dataView.getUint8(0) !== 0xFF) || (dataView.getUint8(1) !== 0xD8)) {
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return false;
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}
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while (offset < length) {
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if (dataView.getUint8(offset) !== 0xFF) {
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return false;
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}
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marker = dataView.getUint8(offset + 1);
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if (marker === 0xE1) {
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return readEXIFData(dataView, offset + 4, exifTags);
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} else {
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offset += 2 + dataView.getUint16(offset + 2);
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}
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}
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}
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function readEXIFData(file, start, exifTags) {
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if (getStringFromBuffer(file, start, 4) !== "Exif") {
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return false;
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}
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const tiffOffset = start + 6;
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let bigEnd,
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tags;
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if (file.getUint16(tiffOffset) === 0x4949) {
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bigEnd = false;
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} else if (file.getUint16(tiffOffset) === 0x4D4D) {
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bigEnd = true;
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} else {
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return false;
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}
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if (file.getUint16(tiffOffset + 2, !bigEnd) !== 0x002A) {
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return false;
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}
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const firstIFDOffset = file.getUint32(tiffOffset + 4, !bigEnd);
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if (firstIFDOffset < 0x00000008) {
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return false;
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}
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tags = readTags(file, tiffOffset, tiffOffset + firstIFDOffset, exifTags, bigEnd);
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return tags;
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}
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function readTags(file, tiffStart, dirStart, strings, bigEnd) {
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const entries = file.getUint16(dirStart, !bigEnd),
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tags = {};
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for (let i = 0; i < entries; i++) {
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const entryOffset = dirStart + i * 12 + 2,
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tag = strings[file.getUint16(entryOffset, !bigEnd)];
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if (tag) {
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tags[tag] = readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd);
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}
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}
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return tags;
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}
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function readTagValue(file, entryOffset, tiffStart, dirStart, bigEnd) {
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const type = file.getUint16(entryOffset + 2, !bigEnd),
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numValues = file.getUint32(entryOffset + 4, !bigEnd);
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switch (type) {
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case 3:
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if (numValues === 1) {
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return file.getUint16(entryOffset + 8, !bigEnd);
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}
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}
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}
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function getStringFromBuffer(buffer, start, length) {
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let outstr = "";
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for (let n = start; n < start + length; n++) {
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outstr += String.fromCharCode(buffer.getUint8(n));
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}
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return outstr;
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}
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@@ -4,6 +4,23 @@ import {
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computeGray
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} from '../common/cv_utils';
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const TO_RADIANS = Math.PI / 180;
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function adjustCanvasSize(canvas, targetSize) {
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if (canvas.width !== targetSize.x) {
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if (ENV.development) {
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console.log("WARNING: canvas-size needs to be adjusted");
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}
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canvas.width = targetSize.x;
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}
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if (canvas.height !== targetSize.y) {
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if (ENV.development) {
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console.log("WARNING: canvas-size needs to be adjusted");
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}
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canvas.height = targetSize.y;
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}
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}
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var FrameGrabber = {};
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FrameGrabber.create = function(inputStream, canvas) {
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@@ -54,9 +71,35 @@ FrameGrabber.create = function(inputStream, canvas) {
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_that.grab = function() {
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var doHalfSample = _streamConfig.halfSample,
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frame = inputStream.getFrame(),
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drawable = frame,
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drawAngle = 0,
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ctxData;
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if (frame) {
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_ctx.drawImage(frame, 0, 0, _canvasSize.x, _canvasSize.y);
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if (drawable) {
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adjustCanvasSize(_canvas, _canvasSize);
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if (_streamConfig.type === 'ImageStream') {
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drawable = frame.img;
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if (frame.tags && frame.tags.orientation) {
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switch (frame.tags.orientation) {
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case 6:
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drawAngle = 90 * TO_RADIANS;
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break;
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case 8:
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drawAngle = -90 * TO_RADIANS;
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break;
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}
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}
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}
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if (drawAngle !== 0) {
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_ctx.translate(_canvasSize.x / 2, _canvasSize.y / 2);
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_ctx.rotate(drawAngle);
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_ctx.drawImage(drawable, -_canvasSize.y / 2, -_canvasSize.x / 2, _canvasSize.y, _canvasSize.x);
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_ctx.rotate(-drawAngle);
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_ctx.translate(-_canvasSize.x / 2, -_canvasSize.y / 2);
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} else {
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_ctx.drawImage(drawable, 0, 0, _canvasSize.x, _canvasSize.y);
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}
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ctxData = _ctx.getImageData(_sx, _sy, _size.x, _size.y).data;
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if (doHalfSample){
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grayAndHalfSampleFromCanvasData(ctxData, _size, _data);
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@@ -1,3 +1,5 @@
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import {findTagsInObjectURL} from './exif_helper';
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var ImageLoader = {};
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ImageLoader.load = function(directory, callback, offset, size, sequence) {
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var htmlImagesSrcArray = new Array(size),
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@@ -26,7 +28,7 @@ ImageLoader.load = function(directory, callback, offset, size, sequence) {
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for (var y = 0; y < htmlImagesSrcArray.length; y++) {
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var imgName = htmlImagesSrcArray[y].substr(htmlImagesSrcArray[y].lastIndexOf("/"));
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if (loadedImg.src.lastIndexOf(imgName) !== -1) {
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htmlImagesArray[y] = loadedImg;
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htmlImagesArray[y] = {img: loadedImg};
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break;
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}
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}
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@@ -37,7 +39,18 @@ ImageLoader.load = function(directory, callback, offset, size, sequence) {
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if (ENV.development) {
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console.log("Images loaded");
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}
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callback.apply(null, [htmlImagesArray]);
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if (sequence === false) {
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findTagsInObjectURL(directory, ['orientation'])
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.then(tags => {
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htmlImagesArray[0].tags = tags;
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callback(htmlImagesArray);
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}).catch(e => {
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console.log(e);
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callback(htmlImagesArray);
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});
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} else {
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callback(htmlImagesArray);
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}
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}
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};
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@@ -176,8 +176,21 @@ InputStream.createImageStream = function() {
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loaded = false;
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ImageLoader.load(baseUrl, function(imgs) {
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imgArray = imgs;
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width = imgs[0].width;
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height = imgs[0].height;
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if (imgs[0].tags && imgs[0].tags.orientation) {
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switch (imgs[0].tags.orientation) {
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case 6:
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case 8:
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width = imgs[0].img.height;
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height = imgs[0].img.width;
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break;
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default:
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width = imgs[0].img.width;
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height = imgs[0].img.height;
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}
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} else {
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width = imgs[0].img.width;
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height = imgs[0].img.height;
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}
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calculatedWidth =
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_config.size ? width / height > 1 ? _config.size : Math.floor((width / height) * _config.size) : width;
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calculatedHeight =
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@@ -0,0 +1,59 @@
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import {
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findTagsInObjectURL,
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findTagsInBuffer,
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base64ToArrayBuffer
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} from '../../src/input/exif_helper';
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const fixtures = {
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orientation: {
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'none': 'data:image/jpeg;base64,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',
|
||||
'6': 'data:image/jpeg;base64,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',
|
||||
'3': 'data:image/jpeg;base64,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',
|
||||
'8': 'data:image/jpeg;base64,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',
|
||||
'1': 'data:image/jpeg;base64,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'
|
||||
}
|
||||
};
|
||||
|
||||
describe('exif_helper', () => {
|
||||
describe("findTagsInObjectURL", () => {
|
||||
it("should return null if the src type is not supported", (done) => {
|
||||
findTagsInObjectURL("blabla").then(tags => {
|
||||
expect(tags === null).to.equal(true);
|
||||
done();
|
||||
});
|
||||
});
|
||||
|
||||
it("should fail for a invalid blob type", (done) => {
|
||||
findTagsInObjectURL('blob:balbla')
|
||||
.then(() => {})
|
||||
.catch(err => {
|
||||
console.log(err);
|
||||
expect(typeof err !== 'undefined');
|
||||
}).then(done);
|
||||
});
|
||||
});
|
||||
|
||||
describe("findTagsInBuffer", () => {
|
||||
it("should result in a rotation value of 1", () => {
|
||||
const result = findTagsInBuffer(base64ToArrayBuffer(fixtures.orientation['1']));
|
||||
expect(result).to.deep.equal({orientation: 1});
|
||||
});
|
||||
it("should result in a rotation value of 6", () => {
|
||||
const result = findTagsInBuffer(base64ToArrayBuffer(fixtures.orientation['6']));
|
||||
expect(result).to.deep.equal({orientation: 6});
|
||||
});
|
||||
it("should result in a rotation value of 3", () => {
|
||||
const result = findTagsInBuffer(base64ToArrayBuffer(fixtures.orientation['3']));
|
||||
expect(result).to.deep.equal({orientation: 3});
|
||||
});
|
||||
it("should result in a rotation value of 4", () => {
|
||||
const result = findTagsInBuffer(base64ToArrayBuffer(fixtures.orientation['8']));
|
||||
expect(result).to.deep.equal({orientation: 8});
|
||||
});
|
||||
it("should return nothing if orientation is not found", () => {
|
||||
const result = findTagsInBuffer(base64ToArrayBuffer(fixtures.orientation['none']));
|
||||
expect(result).to.deep.equal({});
|
||||
});
|
||||
});
|
||||
});
|
||||
Reference in New Issue
Block a user