// # The following lists all copyright notices and licenses for the // # work contained in JavascriptSubtitlesOctopus per project. // // # Project: subtitlesoctopus // License: Expat // Copyright: 2017-2021 JavascriptSubtitlesOctopus contributors // // # Project: brotli // License: Expat // Copyright: 2014 Google Inc. // 2015 The Chromium Authors. // 2016 Google Inc. // 2017 Google Inc. // 2018 Google Inc. // 2015 Google Inc. // 2013 Google Inc. // 2009, 2010, 2013-2016 by the Brotli Authors // 2010 Google Inc. // // # Project: expat // License: Expat // Copyright: 2019 Zhongyuan Zhou // 2020 Joe Orton // 2016-2019 Sebastian Pipping // 2017 Joe Orton // 2002 Fred L. Drake, Jr. // 2004-2006 Fred L. Drake, Jr. // 2017 Sebastian Pipping // 2004-2006 Karl Waclawek // 2003-2006 Karl Waclawek // 2006 Karl Waclawek // 2001-2003 Fred L. Drake, Jr. // 2000-2004 Fred L. Drake, Jr. // 2017 Franek Korta // 2001-2004 Fred L. Drake, Jr. // 2017 Benbuck Nason // 2006-2012 Karl Waclawek // 2019 David Loffredo // 2018 Benjamin Peterson // 2021 Tim Bray // 2017 Rhodri James // 2002-2005 Karl Waclawek // 2016-2020 Sebastian Pipping // 2016 Gilles Espinasse // 2016-2018 Sebastian Pipping // 2007 Karl Waclawek // 2002-2016 Karl Waclawek // 2001-2006 Fred L. Drake, Jr. // 2016 Don Lewis // 2000-2017 Expat development team // 2002-2004 Fred L. Drake, Jr. // 2000 Clark Cooper // 2002 Greg Stein // 2018 Marco Maggi // 2017-2018 Rhodri James // 2005-2009 Steven Solie // 2020 Boris Kolpackov // 2005-2012 Karl Waclawek // 2017-2019 Sebastian Pipping // 2016 Cristian Rodr\x{00c3}\x{00ad}guez // 2005 Karl Waclawek // 1999-2000 Thai Open Source Software Center Ltd // 2005-2007 Steven Solie // 2000-2017 Expat development team / 1997-2000 Thai Open Source Software Center Ltd // 2017 Alexander Bluhm // 2016-2021 Sebastian Pipping // 2018 Anton Maklakov // 2005 Fred L. 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// 2005-2021 Werner Lemberg and Detlef W\x{00fc}rkner. // 2002-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2013-2014 Adobe Systems Incorporated. // 2004-2021 David Turner, Robert Wilhelm, Werner Lemberg, and George Williams. // 2003 Huw D M Davies for Codeweavers // 1996-2021 David Turner, Robert Wilhelm, Werner Lemberg, and Detlef Wuerkner. // 2000-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2007-2021 David Turner. // 2011-2013 Adobe Systems Incorporated. // 2018-2021 Armin Hasitzka, David Turner, Robert Wilhelm, and Werner Lemberg. // 2004-2021 David Turner, Robert Wilhelm, Werner Lemberg and George Williams. // 2007 Dmitry Timoshkov for Codeweavers // 2012-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2007-2021 Dereg Clegg and Michael Toftdal. // 1996-2021 Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg. // 2019-2021 Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg. // 1996-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2003-2021 Masatake YAMATO, Redhat K.K., // 2008-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2009-2021 Oran Agra and Mickey Gabel. // 2006-2013 Adobe Systems Incorporated. // 2013-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2004-2021 Masatake YAMATO, Red Hat K.K., // 2016-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2020-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2007-2021 Rahul Bhalerao , . // 2002-2021 Roberto Alameda. // 2004-2021 suzuki toshiya, Masatake YAMATO, Red Hat K.K., // 1995-2002 Jean-loup Gailly. // 2018-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2004-2021 Albert Chin-A-Young. // 2002-2021 David Turner, Robert Wilhelm, and Werner Lemberg // 2018-2021 David Turner, Robert Wilhelm, Dominik R\x{00c3}\x{00b6}ttsches, and Werner Lemberg. // \x{00e1}\x{00bb}\x{008b}...): %dn", "\x{00e1}\x{00ba}\x{0083}\x{00ce}\x{00ad}\x{00c5}\x{0082}\x{00c4}\x{00ba}", "all", 42); // 2005-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2013 Google, Inc. // 2009-2014 Adobe Systems Incorporated. // 2013-2021 Google, Inc. // 2007-2013 Adobe Systems Incorporated. // 2010-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2007-2021 Derek Clegg and Michael Toftdal. // 2001, 2012 David Turner, Robert Wilhelm, and Werner Lemberg. // 2003-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 2008-2021 David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya. // 1990, 1994, 1998 The Open Group // 2004-2021 David Turner, Robert Wilhelm, and Werner Lemberg. // 1996-2021 David Turner, Robert Wilhelm, Werner Lemberg and Detlef W\x{00fc}rkner. // 2005-2021 suzuki toshiya, Masatake YAMATO, Red Hat K.K., // 2004-2021 Masatake YAMATO, Redhat K.K, // // License: public-domain // Copyright: 2001 Alexander Peslyak and it is hereby released to the // // License: Zlib // Copyright: 1995-2002 Jean-loup Gailly and Mark Adler // // License: Expat // Copyright: 2001-2004 Francesco Zappa Nardelli // 2000-2001, 2004 Francesco Zappa Nardelli // 2003 Francesco Zappa Nardelli // 2001-2015 Francesco Zappa Nardelli // 2001-2004, 2011 Francesco Zappa Nardelli // 2000-2002 Francesco Zappa Nardelli // 2000 Computing Research Labs, New Mexico State University // 2001-2014 Francesco Zappa Nardelli // 2001-2002, 2012 Francesco Zappa Nardelli // 2001-2002 Francesco Zappa Nardelli // 2001-2008, 2011, 2013-2014 Francesco Zappa Nardelli // 2000-2003, 2006, 2010 Francesco Zappa Nardelli // 2000-2001, 2003 Francesco Zappa Nardelli // 2000-2004, 2006-2011, 2013-2014 Francesco Zappa Nardelli // 2000-2010, 2012-2014 Francesco Zappa Nardelli // // License: BSL-1.0 // Copyright: 2019 nyorain // // # Project: fribidi // License: LGPL-2.1+ // Copyright: 1999-2000, 2017 Dov Grobgeld // 1999-2000 Dov Grobgeld // 2004 Behdad Esfahbod // 2001-2002, 2004 Behdad Esfahbod // 2009 Behdad Esfahbod // 2017 Dov Grobgeld // 2004-2005 Behdad Esfahbod // 2004 Sharif FarsiWeb, Inc. // 2015, 2017 Dov Grobgeld // 2005 Behdad Esfahbod // 2001 Behdad Esfahbod. // 2001-2002 Behdad Esfahbod // 2004 Sharif FarsiWeb, Inc // // # Project: fontconfig // License: NTP~disclaimer // Copyright: 2002 Keith Packard // 2009 Roozbeh Pournader // 2000 Tuomas J. Lukka // 2006 Keith Packard // 2008 Red Hat, Inc. // 2000-2007 Keith Packard / 2005 Patrick Lam / 2009 Roozbeh Pournader / 2008,2009 Red Hat, Inc. / 2008 Danilo Šegan / 2012 Google, Inc. // 2001 Keith Packard // 2012 Google, Inc. // 2012 Red Hat, Inc. // 2013 Raimund Steger // 2008,2009 Red Hat, Inc. // 2000-2007 Keith Packard // 2005 Patrick Lam // 2003 Keith Packard // 2020 Zoltan Vandrus // \x{00e6}\x{0081}\x{00af} 2010 Behdad Esfahbod // 2014 Red Hat, Inc. // 2018 Akira TAGOH // \x{00e6}\x{0081}\x{00af} 2006 Keith Packard // 2007 Keith Packard // 2008 Danilo Šegan // 2015 Akira TAGOH // 2016 Akira TAGOH // 2008-2009 Red Hat, Inc. // 2000 Keith Packard // 2013 Akira TAGOH // 2013 Google, Inc. // 2010 Behdad Esfahbod // // License: MIT~old // Copyright: 2009-2010 Red Hat, Inc. // 2011-2013 Google, Inc. // 2007 Chris Wilson // // License: public-domain // Copyright: 2008,2009 Red Hat, Inc. // 2009 Roozbeh Pournader // 2012 Google, Inc. // 2008 Danilo Šegan // 2005 Patrick Lam // 2000-2007 Keith Packard // // License: Expat // Copyright: 2002-2003 Juliusz Chroboczek // // # Project: harfbuzz // License: NTP~disclaimer // Copyright: 2002 Keith Packard // 2014 Google, Inc. // // License: MIT~old // Copyright: 2004, 2007, 2009 Red Hat, Inc. // 2012 Mozilla Foundation. // 2009 Red Hat, Inc. // 2015 Google, Inc. // 2014 Google, Inc. // 2018 Ebrahim Byagowi // 2016 Igalia S.L. // 2011 Martin Hosken // 2018 Ebrahim Byagowi. // 2019 Ebrahim Byagowi // 2020 Ebrahim Byagowi // 1998-2004 David Turner and Werner Lemberg // 2013 Red Hat, Inc. // 2011-2012 Google, Inc. // 2011 SIL International // 2018 Khaled Hosny // 2018 Google, Inc. // 2019-2020 Ebrahim Byagowi // 2012 Google, Inc. // 2017 Google, Inc. // 2007-2009 Red Hat, Inc. // 2011 Codethink Limited // 2013 Google, Inc. // 2015-2019 Ebrahim Byagowi // 2016 Google, Inc. // 2011 Google, Inc. // // # Project: libass // License: public-domain // Copyright: 2006-2016 libass contributors // // License: NTP // Copyright: 1994 Sun Microsystems, Inc. // 2016 Oleg Oshmyan // 1988-1993 The Regents of the University of California. // // License: ISC // Copyright: 2015 Oleg Oshmyan // 2011-2014 Yu Zhuohuang // 2013 rcombs // 2016 Vabishchevich Nikolay // 2015 Stephan Vedder // 2015 Vabishchevich Nikolay // 2006-2016 libass contributors // 2017 Vabishchevich Nikolay // 2011 Grigori Goronzy // 2010 Grigori Goronzy // 2014 Vabishchevich Nikolay // 2015 Grigori Goronzy // 2013 Stefano Pigozzi // 2006 Evgeniy Stepanov // 2009 Grigori Goronzy // // # The following section contains the full license text or // # where permitted a shorter notice for all works contained // # in JavascriptSubtitlesOctopus listed above // # // # Note that the shortnames used here are identical to those used by Debian // # and will in some cases differ from SPDX identifiers. 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See the GNU // Lesser General Public License for more details. // . // You should have received a copy of the GNU Lesser General Public // License along with this library; if not, write to the Free Software // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA // . // Also add information on how to contact you by electronic and paper mail. // . // You should also get your employer (if you work as a programmer) or your // school, if any, to sign a "copyright disclaimer" for the library, if // necessary. Here is a sample; alter the names: // . // Yoyodyne, Inc., hereby disclaims all copyright interest in the // library `Frob' (a library for tweaking knobs) written by James Random Hacker. // . // , 1 April 1990 // Ty Coon, President of Vice // . // That's all there is to it! var SubtitlesOctopus = function (options) { var supportsWebAssembly = false; try { if (typeof WebAssembly === "object" && typeof WebAssembly.instantiate === "function") { const module = new WebAssembly.Module(Uint8Array.of(0x0, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00)); if (module instanceof WebAssembly.Module) supportsWebAssembly = (new WebAssembly.Instance(module) instanceof WebAssembly.Instance); } } catch (e) { } console.log("WebAssembly support detected: " + (supportsWebAssembly ? "yes" : "no")); var self = this; self.canvas = options.canvas; // HTML canvas element (optional if video specified) self.renderMode = options.renderMode || (options.lossyRender ? 'lossy' : 'wasm-blend'); self.libassMemoryLimit = options.libassMemoryLimit || 0; self.libassGlyphLimit = options.libassGlyphLimit || 0; self.targetFps = options.targetFps || 24; self.isOurCanvas = false; // (internal) we created canvas and manage it self.video = options.video; // HTML video element (optional if canvas specified) self.canvasParent = null; // (internal) HTML canvas parent element self.fonts = options.fonts || []; // Array with links to fonts used in sub (optional) self.availableFonts = options.availableFonts || []; // Object with all available fonts (optional). Key is font name in lower case, value is link: {"arial": "/font1.ttf"} self.onReadyEvent = options.onReady; // Function called when SubtitlesOctopus is ready (optional) if (supportsWebAssembly) { self.workerUrl = options.workerUrl || 'subtitles-octopus-worker.js'; // Link to WebAssembly worker } else { self.workerUrl = options.legacyWorkerUrl || 'subtitles-octopus-worker-legacy.js'; // Link to legacy worker } self.subUrl = options.subUrl; // Link to sub file (optional if subContent specified) self.subContent = options.subContent || null; // Sub content (optional if subUrl specified) self.onErrorEvent = options.onError; // Function called in case of critical error meaning sub wouldn't be shown and you should use alternative method (for instance it occurs if browser doesn't support web workers). self.debug = options.debug || false; // When debug enabled, some performance info printed in console. self.lastRenderTime = 0; // (internal) Last time we got some frame from worker self.pixelRatio = window.devicePixelRatio || 1; // (internal) Device pixel ratio (for high dpi devices) self.timeOffset = options.timeOffset || 0; // Time offset would be applied to currentTime from video (option) self.hasAlphaBug = false; (function() { if (typeof ImageData.prototype.constructor === 'function') { try { // try actually calling ImageData, as on some browsers it's reported // as existing but calling it errors out as "TypeError: Illegal constructor" new window.ImageData(new Uint8ClampedArray([0, 0, 0, 0]), 1, 1); return; } catch (e) { console.log("detected that ImageData is not constructable despite browser saying so"); } } var canvas = document.createElement('canvas'); var ctx = canvas.getContext('2d'); window.ImageData = function () { var i = 0; if (arguments[0] instanceof Uint8ClampedArray) { var data = arguments[i++]; } var width = arguments[i++]; var height = arguments[i]; var imageData = ctx.createImageData(width, height); if (data) imageData.data.set(data); return imageData; } })(); self.workerError = function (error) { console.error('Worker error: ', error); if (self.onErrorEvent) { self.onErrorEvent(error); } if (!self.debug) { self.dispose(); throw new Error('Worker error: ' + error); } }; // Not tested for repeated usage yet self.init = function () { if (!window.Worker) { self.workerError('worker not supported'); return; } // Worker if (!self.worker) { self.worker = new Worker(self.workerUrl); self.worker.onmessage = self.onWorkerMessage; self.worker.onerror = self.workerError; } self.workerActive = false; self.createCanvas(); self.setVideo(options.video); self.setSubUrl(options.subUrl); self.worker.postMessage({ target: 'worker-init', width: self.canvas.width, height: self.canvas.height, URL: document.URL, currentScript: self.workerUrl, preMain: true, renderMode: self.renderMode, subUrl: self.subUrl, subContent: self.subContent, fonts: self.fonts, availableFonts: self.availableFonts, debug: self.debug, targetFps: self.targetFps, libassMemoryLimit: self.libassMemoryLimit, libassGlyphLimit: self.libassGlyphLimit }); }; self.createCanvas = function () { if (!self.canvas) { if (self.video) { self.isOurCanvas = true; self.canvas = document.createElement('canvas'); self.canvas.className = 'libassjs-canvas'; self.canvas.style.display = 'none'; self.canvasParent = document.createElement('div'); self.canvasParent.className = 'libassjs-canvas-parent'; self.canvasParent.appendChild(self.canvas); if (self.video.nextSibling) { self.video.parentNode.insertBefore(self.canvasParent, self.video.nextSibling); } else { self.video.parentNode.appendChild(self.canvasParent); } } else { if (!self.canvas) { self.workerError('Don\'t know where to render: you should give video or canvas in options.'); } } } self.ctx = self.canvas.getContext('2d'); self.bufferCanvas = document.createElement('canvas'); self.bufferCanvasCtx = self.bufferCanvas.getContext('2d'); // test for alpha bug, where e.g. WebKit can render a transparent pixel // (with alpha == 0) as non-black which then leads to visual artifacts self.bufferCanvas.width = 1; self.bufferCanvas.height = 1; var testBuf = new Uint8ClampedArray([0, 255, 0, 0]); var testImage = new ImageData(testBuf, 1, 1); self.bufferCanvasCtx.clearRect(0, 0, 1, 1); self.ctx.clearRect(0, 0, 1, 1); var prePut = self.ctx.getImageData(0, 0, 1, 1).data; self.bufferCanvasCtx.putImageData(testImage, 0, 0); self.ctx.drawImage(self.bufferCanvas, 0, 0); var postPut = self.ctx.getImageData(0, 0, 1, 1).data; self.hasAlphaBug = prePut[1] != postPut[1]; if (self.hasAlphaBug) { console.log("Detected a browser having issue with transparent pixels, applying workaround"); } }; self.setVideo = function (video) { self.video = video; if (self.video) { var timeupdate = function () { self.setCurrentTime(video.currentTime + self.timeOffset); } self.video.addEventListener("timeupdate", timeupdate, false); self.video.addEventListener("playing", function () { self.setIsPaused(false, video.currentTime + self.timeOffset); }, false); self.video.addEventListener("pause", function () { self.setIsPaused(true, video.currentTime + self.timeOffset); }, false); self.video.addEventListener("seeking", function () { self.video.removeEventListener("timeupdate", timeupdate); }, false); self.video.addEventListener("seeked", function () { self.video.addEventListener("timeupdate", timeupdate, false); self.setCurrentTime(video.currentTime + self.timeOffset); }, false); self.video.addEventListener("ratechange", function () { self.setRate(video.playbackRate); }, false); self.video.addEventListener("waiting", function () { self.setIsPaused(true, video.currentTime + self.timeOffset); }, false); document.addEventListener("fullscreenchange", self.resizeWithTimeout, false); document.addEventListener("mozfullscreenchange", self.resizeWithTimeout, false); document.addEventListener("webkitfullscreenchange", self.resizeWithTimeout, false); document.addEventListener("msfullscreenchange", self.resizeWithTimeout, false); window.addEventListener("resize", self.resizeWithTimeout, false); // Support Element Resize Observer if (typeof ResizeObserver !== "undefined") { self.ro = new ResizeObserver(self.resizeWithTimeout); self.ro.observe(self.video); } if (self.video.videoWidth > 0) { self.resize(); } else { self.video.addEventListener("loadedmetadata", function listener(e) { e.target.removeEventListener(e.type, listener); self.resize(); }, false); } } }; self.getVideoPosition = function () { var videoRatio = self.video.videoWidth / self.video.videoHeight; var width = self.video.offsetWidth, height = self.video.offsetHeight; var elementRatio = width / height; var realWidth = width, realHeight = height; if (elementRatio > videoRatio) realWidth = Math.floor(height * videoRatio); else realHeight = Math.floor(width / videoRatio); var x = (width - realWidth) / 2; var y = (height - realHeight) / 2; return { width: realWidth, height: realHeight, x: x, y: y }; }; self.setSubUrl = function (subUrl) { self.subUrl = subUrl; }; self.renderFrameData = null; function renderFrames() { var data = self.renderFramesData; var beforeDrawTime = performance.now(); self.ctx.clearRect(0, 0, self.canvas.width, self.canvas.height); for (var i = 0; i < data.canvases.length; i++) { var image = data.canvases[i]; self.bufferCanvas.width = image.w; self.bufferCanvas.height = image.h; var imageBuffer = new Uint8ClampedArray(image.buffer); if (self.hasAlphaBug) { for (var j = 3; j < imageBuffer.length; j = j + 4) { imageBuffer[j] = (imageBuffer[j] >= 1) ? imageBuffer[j] : 1; } } var imageData = new ImageData(imageBuffer, image.w, image.h); self.bufferCanvasCtx.putImageData(imageData, 0, 0); self.ctx.drawImage(self.bufferCanvas, image.x, image.y); } if (self.debug) { var drawTime = Math.round(performance.now() - beforeDrawTime); var blendTime = data.blendTime; if (typeof blendTime !== 'undefined') { console.log('render: ' + Math.round(data.spentTime - blendTime) + ' ms, blend: ' + Math.round(blendTime) + ' ms, draw: ' + drawTime + ' ms; TOTAL=' + Math.round(data.spentTime + drawTime) + ' ms'); } else { console.log(Math.round(data.spentTime) + ' ms (+ ' + drawTime + ' ms draw)'); } self.renderStart = performance.now(); } } /** * Lossy Render Mode * */ function renderFastFrames() { var data = self.renderFramesData; var beforeDrawTime = performance.now(); self.ctx.clearRect(0, 0, self.canvas.width, self.canvas.height); for (var i = 0; i < data.bitmaps.length; i++) { var image = data.bitmaps[i]; self.ctx.drawImage(image.bitmap, image.x, image.y); } if (self.debug) { var drawTime = Math.round(performance.now() - beforeDrawTime); console.log(data.bitmaps.length + ' bitmaps, libass: ' + Math.round(data.libassTime) + 'ms, decode: ' + Math.round(data.decodeTime) + 'ms, draw: ' + drawTime + 'ms'); self.renderStart = performance.now(); } } self.workerActive = false; self.frameId = 0; self.onWorkerMessage = function (event) { //dump('\nclient got ' + JSON.stringify(event.data).substr(0, 150) + '\n'); if (!self.workerActive) { self.workerActive = true; if (self.onReadyEvent) { self.onReadyEvent(); } } var data = event.data; switch (data.target) { case 'stdout': { console.log(data.content); break; } case 'console-log': { console.log.apply(console, JSON.parse(data.content)); break; } case 'console-debug': { console.debug.apply(console, JSON.parse(data.content)); break; } case 'console-info': { console.info.apply(console, JSON.parse(data.content)); break; } case 'console-warn': { console.warn.apply(console, JSON.parse(data.content)); break; } case 'console-error': { console.error.apply(console, JSON.parse(data.content)); break; } case 'stderr': { console.error(data.content); break; } case 'window': { window[data.method](); break; } case 'canvas': { switch (data.op) { case 'getContext': { self.ctx = self.canvas.getContext(data.type, data.attributes); break; } case 'resize': { self.resize(data.width, data.height); break; } case 'renderCanvas': { if (self.lastRenderTime < data.time) { self.lastRenderTime = data.time; self.renderFramesData = data; window.requestAnimationFrame(renderFrames); } break; } case 'renderFastCanvas': { if (self.lastRenderTime < data.time) { self.lastRenderTime = data.time; self.renderFramesData = data; window.requestAnimationFrame(renderFastFrames); } break; } case 'setObjectProperty': { self.canvas[data.object][data.property] = data.value; break; } default: throw 'eh?'; } break; } case 'tick': { self.frameId = data.id; self.worker.postMessage({ target: 'tock', id: self.frameId }); break; } case 'custom': { if (self['onCustomMessage']) { self['onCustomMessage'](event); } else { throw 'Custom message received but client onCustomMessage not implemented.'; } break; } case 'setimmediate': { self.worker.postMessage({ target: 'setimmediate' }); break; } case 'get-events': { console.log(data.target); console.log(data.events); break; } case 'get-styles': { console.log(data.target); console.log(data.styles); break; } case 'ready': { break; } default: throw 'what? ' + data.target; } }; self.resize = function (width, height, top, left) { var videoSize = null; top = top || 0; left = left || 0; if ((!width || !height) && self.video) { videoSize = self.getVideoPosition(); width = videoSize.width * self.pixelRatio; height = videoSize.height * self.pixelRatio; var offset = self.canvasParent.getBoundingClientRect().top - self.video.getBoundingClientRect().top; top = videoSize.y - offset; left = videoSize.x; } if (!width || !height) { if (!self.video) { console.error('width or height is 0. You should specify width & height for resize.'); } return; } if ( self.canvas.width != width || self.canvas.height != height || self.canvas.style.top != top || self.canvas.style.left != left ) { self.canvas.width = width; self.canvas.height = height; if (videoSize != null) { self.canvasParent.style.position = 'relative'; self.canvas.style.display = 'block'; self.canvas.style.position = 'absolute'; self.canvas.style.width = videoSize.width + 'px'; self.canvas.style.height = videoSize.height + 'px'; self.canvas.style.top = top + 'px'; self.canvas.style.left = left + 'px'; self.canvas.style.pointerEvents = 'none'; } self.worker.postMessage({ target: 'canvas', width: self.canvas.width, height: self.canvas.height }); } }; self.resizeWithTimeout = function () { self.resize(); setTimeout(self.resize, 100); }; self.runBenchmark = function () { self.worker.postMessage({ target: 'runBenchmark' }); }; self.customMessage = function (data, options) { options = options || {}; self.worker.postMessage({ target: 'custom', userData: data, preMain: options.preMain }); }; self.setCurrentTime = function (currentTime) { self.worker.postMessage({ target: 'video', currentTime: currentTime }); }; self.setTrackByUrl = function (url) { self.worker.postMessage({ target: 'set-track-by-url', url: url }); }; self.setTrack = function (content) { self.worker.postMessage({ target: 'set-track', content: content }); }; self.freeTrack = function (content) { self.worker.postMessage({ target: 'free-track' }); }; self.render = self.setCurrentTime; self.setIsPaused = function (isPaused, currentTime) { self.worker.postMessage({ target: 'video', isPaused: isPaused, currentTime: currentTime }); }; self.setRate = function (rate) { self.worker.postMessage({ target: 'video', rate: rate }); }; self.dispose = function () { self.worker.postMessage({ target: 'destroy' }); self.worker.terminate(); self.workerActive = false; // Remove the canvas element to remove residual subtitles rendered on player if (self.video) { self.video.parentNode.removeChild(self.canvasParent); } }; self.createEvent = function (event) { self.worker.postMessage({ target: 'create-event', event: event }); }; self.getEvents = function () { self.worker.postMessage({ target: 'get-events' }); }; self.setEvent = function (event, index) { self.worker.postMessage({ target: 'set-event', event: event, index: index }); }; self.removeEvent = function (index) { self.worker.postMessage({ target: 'remove-event', index: index }); }; self.createStyle = function (style) { self.worker.postMessage({ target: 'create-style', style: style }); }; self.getStyles = function () { self.worker.postMessage({ target: 'get-styles' }); }; self.setStyle = function (style, index) { self.worker.postMessage({ target: 'set-style', style: style, index: index }); }; self.removeStyle = function (index) { self.worker.postMessage({ target: 'remove-style', index: index }); }; self.init(); }; if (typeof SubtitlesOctopusOnLoad == 'function') { SubtitlesOctopusOnLoad(); } if (typeof exports !== 'undefined') { if (typeof module !== 'undefined' && module.exports) { exports = module.exports = SubtitlesOctopus } }