telegram-crawler/data/web/promote.telegram.org/js/ogvjs/ogv-worker-audio.js
2022-05-13 12:05:36 +02:00

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17 KiB
JavaScript

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/************************************************************************/
/******/ ([
/* 0 */
/***/ (function(module, exports, __webpack_require__) {
module.exports = __webpack_require__(1);
/***/ }),
/* 1 */
/***/ (function(module, exports, __webpack_require__) {
var OGVWorkerSupport = __webpack_require__(2);
var proxy = new OGVWorkerSupport([
'loadedMetadata',
'audioFormat',
'audioBuffer',
'cpuTime'
], {
init: function(args, callback) {
this.target.init(callback);
},
processHeader: function(args, callback) {
this.target.processHeader(args[0], function(ok) {
callback([ok]);
});
},
processAudio: function(args, callback) {
this.target.processAudio(args[0], function(ok) {
callback([ok]);
});
}
});
module.exports = proxy;
/***/ }),
/* 2 */
/***/ (function(module, exports, __webpack_require__) {
var OGVLoader = __webpack_require__(3);
/**
* Web Worker wrapper for codec fun
*/
function OGVWorkerSupport(propList, handlers) {
var transferables = (function() {
var buffer = new ArrayBuffer(1024),
bytes = new Uint8Array(buffer);
try {
postMessage({
action: 'transferTest',
bytes: bytes
}, [buffer]);
if (buffer.byteLength) {
// No transferable support
return false;
} else {
return true;
}
} catch (e) {
return false;
}
})();
var self = this;
self.target = null;
var sentProps = {},
pendingEvents = [];
function copyObject(obj) {
var copy = {};
for (var prop in obj) {
if (obj.hasOwnProperty(prop)) {
copy[prop] = obj[prop];
}
}
return copy;
}
function copyAudioBuffer(data) {
if (data == null) {
return null;
} else {
// Array of Float32Arrays
var copy = [];
for (var i = 0; i < data.length; i++) {
copy[i] = new Float32Array(data[i]);
}
return copy;
}
}
function handleEvent(data) {
handlers[data.action].call(self, data.args, function(args) {
args = args || [];
// Collect and send any changed properties...
var props = {},
transfers = [];
propList.forEach(function(propName) {
var propVal = self.target[propName];
if (sentProps[propName] !== propVal) {
// Save this value for later reference...
sentProps[propName] = propVal;
if (propName == 'duration' && isNaN(propVal) && isNaN(sentProps[propName])) {
// NaN is not === itself. Nice!
// no need to update it here.
} else if (propName == 'audioBuffer') {
// Don't send the entire emscripten heap!
propVal = copyAudioBuffer(propVal);
props[propName] = propVal;
if (propVal) {
for (var i = 0; i < propVal.length; i++) {
transfers.push(propVal[i].buffer);
}
}
} else if (propName == 'frameBuffer') {
// We already extract ahead of time now,
// so transfer the small buffers.
props[propName] = propVal;
if (propVal) {
transfers.push(propVal.y.bytes.buffer);
transfers.push(propVal.u.bytes.buffer);
transfers.push(propVal.v.bytes.buffer);
}
} else {
props[propName] = propVal;
}
}
});
var out = {
action: 'callback',
callbackId: data.callbackId,
args: args,
props: props
};
if (transferables) {
postMessage(out, transfers);
} else {
postMessage(out);
}
});
}
handlers.construct = function(args, callback) {
var className = args[0],
options = args[1];
OGVLoader.loadClass(className, function(classObj) {
self.target = new classObj(options);
callback();
while (pendingEvents.length) {
handleEvent(pendingEvents.shift());
}
});
};
addEventListener('message', function workerOnMessage(event) {
var data = event.data;
if (!data || typeof data !== 'object') {
// invalid
return;
} else if (data.action == 'transferTest') {
// ignore
} else if (typeof data.action !== 'string' || typeof data.callbackId !== 'string' || typeof data.args !== 'object') {
console.log('invalid message data', data);
} else if (!(data.action in handlers)) {
console.log('invalid message action', data.action);
} else if (data.action == 'construct') {
// always handle constructor
handleEvent(data);
} else if (!self.target) {
// queue until constructed
pendingEvents.push(data);
} else {
handleEvent(data);
}
});
}
module.exports = OGVWorkerSupport;
/***/ }),
/* 3 */
/***/ (function(module, exports, __webpack_require__) {
var OGVVersion = ("1.4.2-20170425024925-504d7197");
(function() {
var global = this;
var scriptMap = {
OGVDemuxerOgg: 'ogv-demuxer-ogg.js',
OGVDemuxerOggW: 'ogv-demuxer-ogg-wasm.js',
OGVDemuxerWebM: 'ogv-demuxer-webm.js',
OGVDemuxerWebMW: 'ogv-demuxer-webm-wasm.js',
OGVDecoderAudioOpus: 'ogv-decoder-audio-opus.js',
OGVDecoderAudioOpusW: 'ogv-decoder-audio-opus-wasm.js',
OGVDecoderAudioVorbis: 'ogv-decoder-audio-vorbis.js',
OGVDecoderAudioVorbisW: 'ogv-decoder-audio-vorbis-wasm.js',
OGVDecoderVideoTheora: 'ogv-decoder-video-theora.js',
OGVDecoderVideoTheoraW: 'ogv-decoder-video-theora-wasm.js',
OGVDecoderVideoVP8: 'ogv-decoder-video-vp8.js',
OGVDecoderVideoVP8W: 'ogv-decoder-video-vp8-wasm.js',
OGVDecoderVideoVP8MT: 'ogv-decoder-video-vp8-mt.js',
OGVDecoderVideoVP9: 'ogv-decoder-video-vp9.js',
OGVDecoderVideoVP9W: 'ogv-decoder-video-vp9-wasm.js',
OGVDecoderVideoVP9MT: 'ogv-decoder-video-vp9-mt.js'
};
// @fixme make this less awful
var proxyTypes = {
OGVDecoderAudioOpus: 'audio',
OGVDecoderAudioOpusW: 'audio',
OGVDecoderAudioVorbis: 'audio',
OGVDecoderAudioVorbisW: 'audio',
OGVDecoderVideoTheora: 'video',
OGVDecoderVideoTheoraW: 'video',
OGVDecoderVideoVP8: 'video',
OGVDecoderVideoVP8W: 'video',
OGVDecoderVideoVP9: 'video',
OGVDecoderVideoVP9W: 'video'
};
var proxyInfo = {
audio: {
proxy: __webpack_require__(4),
worker: 'ogv-worker-audio.js',
},
video: {
proxy: __webpack_require__(6),
worker: 'ogv-worker-video.js'
}
}
function urlForClass(className) {
var scriptName = scriptMap[className];
if (scriptName) {
return urlForScript(scriptName);
} else {
throw new Error('asked for URL for unknown class ' + className);
}
};
function urlForScript(scriptName) {
if (scriptName) {
var base = OGVLoader.base;
if (base === undefined) {
base = '';
} else {
base += '/';
}
return base + scriptName + '?version=' + encodeURIComponent(OGVVersion);
} else {
throw new Error('asked for URL for unknown script ' + scriptName);
}
};
var scriptStatus = {},
scriptCallbacks = {};
function loadWebScript(src, callback) {
if (scriptStatus[src] == 'done') {
callback();
} else if (scriptStatus[src] == 'loading') {
scriptCallbacks[src].push(callback);
} else {
scriptStatus[src] = 'loading';
scriptCallbacks[src] = [callback];
var scriptNode = document.createElement('script');
function done(event) {
var callbacks = scriptCallbacks[src];
delete scriptCallbacks[src];
scriptStatus[src] = 'done';
callbacks.forEach(function(cb) {
cb();
});
}
scriptNode.addEventListener('load', done);
scriptNode.addEventListener('error', done);
scriptNode.src = src;
document.querySelector('head').appendChild(scriptNode);
}
}
function loadWebAssembly(src, callback) {
if (!src.match(/-wasm\.js/)) {
callback(null);
} else {
var wasmSrc = src.replace(/-wasm\.js/, '-wasm.wasm');
var xhr = new XMLHttpRequest();
xhr.responseType = 'arraybuffer';
xhr.onload = function() {
callback(xhr.response);
};
xhr.onerror = function() {
callback(null);
};
xhr.open('GET', wasmSrc);
xhr.send();
}
}
function defaultBase() {
if (typeof global.window === 'object') {
// for browser, try to autodetect
var scriptNodes = document.querySelectorAll('script'),
regex = /^(?:|(.*)\/)ogv(?:-support)?\.js(?:\?|#|$)/,
path,
matches;
for (var i = 0; i < scriptNodes.length; i++) {
path = scriptNodes[i].getAttribute('src');
if (path) {
matches = path.match(regex);
if (matches) {
return matches[1];
}
}
}
return undefined; // current dir
} else {
// for workers, assume current directory
// if not a worker, too bad.
return undefined;
}
}
var OGVLoader = {
base: defaultBase(),
loadClass: function(className, callback, options) {
options = options || {};
if (options.worker) {
this.workerProxy(className, callback);
return;
}
var url = urlForClass(className);
loadWebAssembly(url, function(wasmBinary) {
function wasmClassWrapper(options) {
options = options || {};
if (wasmBinary !== null) {
options.wasmBinary = wasmBinary;
}
return new global[className](options);
}
if (typeof global[className] === 'function') {
// already loaded!
callback(wasmClassWrapper);
} else if (typeof global.window === 'object') {
loadWebScript(url, function() {
callback(wasmClassWrapper);
});
} else if (typeof global.importScripts === 'function') {
// worker has convenient sync importScripts
global.importScripts(url);
callback(wasmClassWrapper);
}
});
},
workerProxy: function(className, callback) {
var proxyType = proxyTypes[className],
info = proxyInfo[proxyType];
if (!info) {
throw new Error('Requested worker for class with no proxy: ' + className);
}
var proxyClass = info.proxy,
workerScript = info.worker,
codecUrl = urlForScript(scriptMap[className]),
workerUrl = urlForScript(workerScript),
worker;
var construct = function(options) {
return new proxyClass(worker, className, options);
};
if (workerUrl.match(/^https?:|\/\//i)) {
// Can't load workers natively cross-domain, but if CORS
// is set up we can fetch the worker stub and the desired
// class and load them from a blob.
var getCodec,
getWorker,
codecResponse,
workerResponse,
codecLoaded = false,
workerLoaded = false,
blob;
function completionCheck() {
if ((codecLoaded == true) && (workerLoaded == true)) {
try {
blob = new Blob([codecResponse + " " + workerResponse], {type: 'application/javascript'});
} catch (e) { // Backwards-compatibility
window.BlobBuilder = window.BlobBuilder || window.WebKitBlobBuilder || window.MozBlobBuilder;
blob = new BlobBuilder();
blob.append(codecResponse + " " + workerResponse);
blob = blob.getBlob();
}
// Create the web worker
worker = new Worker(URL.createObjectURL(blob));
callback(construct);
}
}
// Load the codec
getCodec = new XMLHttpRequest();
getCodec.open("GET", codecUrl, true);
getCodec.onreadystatechange = function() {
if(getCodec.readyState == 4 && getCodec.status == 200) {
codecResponse = getCodec.responseText;
// Update the codec response loaded flag
codecLoaded = true;
completionCheck();
}
};
getCodec.send();
// Load the worker
getWorker = new XMLHttpRequest();
getWorker.open("GET", workerUrl, true);
getWorker.onreadystatechange = function() {
if(getWorker.readyState == 4 && getWorker.status == 200) {
workerResponse = getWorker.responseText;
// Update the worker response loaded flag
workerLoaded = true;
completionCheck();
}
};
getWorker.send();
} else {
// Local URL; load it directly for simplicity.
worker = new Worker(workerUrl);
callback(construct);
}
}
};
module.exports = OGVLoader;
})();
/***/ }),
/* 4 */
/***/ (function(module, exports, __webpack_require__) {
var OGVProxyClass = __webpack_require__(5);
var OGVDecoderAudioProxy = OGVProxyClass({
loadedMetadata: false,
audioFormat: null,
audioBuffer: null,
cpuTime: 0
}, {
init: function(callback) {
this.proxy('init', [], callback);
},
processHeader: function(data, callback) {
this.proxy('processHeader', [data], callback, [data]);
},
processAudio: function(data, callback) {
this.proxy('processAudio', [data], callback, [data]);
},
close: function() {
this.terminate();
}
});
module.exports = OGVDecoderAudioProxy;
/***/ }),
/* 5 */
/***/ (function(module, exports) {
/**
* Proxy object for web worker interface for codec classes.
*
* Used by the high-level player interface.
*
* @author Brion Vibber <brion@pobox.com>
* @copyright 2015
* @license MIT-style
*/
function OGVProxyClass(initialProps, methods) {
return function(worker, className, options) {
options = options || {};
var self = this;
var transferables = (function() {
var buffer = new ArrayBuffer(1024),
bytes = new Uint8Array(buffer);
try {
worker.postMessage({
action: 'transferTest',
bytes: bytes
}, [buffer]);
if (buffer.byteLength) {
// No transferable support
return false;
} else {
return true;
}
} catch (e) {
return false;
}
})();
// Set up proxied property getters
var props = {};
for (var iPropName in initialProps) {
if (initialProps.hasOwnProperty(iPropName)) {
(function(propName) {
props[propName] = initialProps[propName];
Object.defineProperty(self, propName, {
get: function getProperty() {
return props[propName];
}
});
})(iPropName);
}
}
// Current player wants to avoid async confusion.
var processingQueue = 0;
Object.defineProperty(self, 'processing', {
get: function() {
return (processingQueue > 0);
}
});
// Set up proxied methods
for (var method in methods) {
if (methods.hasOwnProperty(method)) {
self[method] = methods[method];
}
}
// And some infrastructure!
var messageCount = 0,
pendingCallbacks = {};
this.proxy = function(action, args, callback, transfers) {
if (!worker) {
throw 'Tried to call "' + action + '" method on closed proxy object';
}
var callbackId = 'callback-' + (++messageCount) + '-' + action;
if (callback) {
pendingCallbacks[callbackId] = callback;
}
var out = {
'action': action,
'callbackId': callbackId,
'args': args || []
};
processingQueue++;
if (transferables) {
worker.postMessage(out, transfers || []);
} else {
worker.postMessage(out);
}
};
this.terminate = function() {
if (worker) {
worker.terminate();
worker = null;
processingQueue = 0;
pendingCallbacks = {};
}
};
worker.addEventListener('message', function proxyOnMessage(event) {
processingQueue--;
if (event.data.action !== 'callback') {
// ignore
return;
}
var data = event.data,
callbackId = data.callbackId,
args = data.args,
callback = pendingCallbacks[callbackId];
// Save any updated properties returned to us...
if (data.props) {
for (var propName in data.props) {
if (data.props.hasOwnProperty(propName)) {
props[propName] = data.props[propName];
}
}
}
if (callback) {
delete pendingCallbacks[callbackId];
callback.apply(this, args);
}
});
// Tell the proxy to load and initialize the appropriate class
self.proxy('construct', [className, options], function() {});
return self;
};
}
module.exports = OGVProxyClass;
/***/ }),
/* 6 */
/***/ (function(module, exports, __webpack_require__) {
var OGVProxyClass = __webpack_require__(5);
var OGVDecoderVideoProxy = OGVProxyClass({
loadedMetadata: false,
videoFormat: null,
frameBuffer: null,
cpuTime: 0
}, {
init: function(callback) {
this.proxy('init', [], callback);
},
processHeader: function(data, callback) {
this.proxy('processHeader', [data], callback, [data]);
},
processFrame: function(data, callback) {
this.proxy('processFrame', [data], callback, [data]);
},
close: function() {
this.terminate();
}
});
module.exports = OGVDecoderVideoProxy;
/***/ })
/******/ ]);