Merge pull request #12 from zhw2590582/dev-flv

Dev flv
This commit is contained in:
Harvey Zack authored and GitHub committed 2018-12-21 15:46:34 +08:00
commit 1c83fc1774
21 files changed
+1340 -137

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+3 -7
View File
@@ -19,20 +19,16 @@ body,
.part-top .config {
width: 500px;
display: flex;
margin-bottom: 20px;
}
.part-top .config .urlInput {
flex: 1;
outline: none;
}
.part-top .config .playBtn {
width: 50px;
width: 100%;
margin-bottom: 20px;
}
.part-top .artplayer {
opacity: 0;
width: 500px;
height: 300px;
background: #fff;
+13 -9
View File
@@ -19,8 +19,12 @@
<div class="container">
<div class="part-top">
<div class="config">
<input class="urlInput" type="text" value="https://blog.zhw-island.com/assets-cdn/video/one-more-time-one-more-chance-480p.flv">
<input class="playBtn" type="button" value="play">
<input class="urlInput" type="text" value="./video/again.flv">
<!-- <input class="urlInput" type="text" value="https://blog.zhw-island.com/assets-cdn/video/one-more-time-one-more-chance-480p.flv"> -->
<div class="btns">
<input class="playBtn" type="button" value="Play">
<input class="fileBtn" type="file">
</div>
</div>
<div class="artplayer"></div>
</div>
@@ -31,13 +35,13 @@
<script src="../uncompiled/artplayer-plugin-flv.js"></script>
<script src="./js/common.js"></script>
<script>
var _hmt = _hmt || [];
(function() {
var hm = document.createElement("script");
hm.src = "https://hm.baidu.com/hm.js?b6c9b8bafbf5fe7225160101dafbbc7d";
var s = document.getElementsByTagName("script")[0];
s.parentNode.insertBefore(hm, s);
})();
// var _hmt = _hmt || [];
// (function() {
// var hm = document.createElement("script");
// hm.src = "https://hm.baidu.com/hm.js?b6c9b8bafbf5fe7225160101dafbbc7d";
// var s = document.getElementsByTagName("script")[0];
// s.parentNode.insertBefore(hm, s);
// })();
</script>
</body>
+20 -8
View File
@@ -1,11 +1,11 @@
'use strict';
(function() {
consola.creat({
target: '.part-bottom',
size: '100%',
zIndex: 99,
});
// consola.creat({
// target: '.part-bottom',
// size: '100%',
// zIndex: 99,
// });
console.info('Welcome, if you like it, consider star it, thank you.');
console.info('https://github.com/zhw2590582/ArtPlayer');
@@ -16,8 +16,9 @@
var $urlInput = document.querySelector('.urlInput');
var $playBtn = document.querySelector('.playBtn');
var $fileBtn = document.querySelector('.fileBtn');
function creatPlayer() {
function creatPlayer(file) {
Artplayer.instances.forEach(function(art) {
art.destroy(true);
});
@@ -28,13 +29,24 @@
type: 'flv',
customType: {
flv: function(video, url) {
this.plugins.artplayerPluginFlv.init(video, url);
var flv = new Flv({
mediaElement: video,
url: file instanceof File ? file : url,
debug: true,
});
this.on('destroy', () => {
flv.destroy();
});
},
},
plugins: [artplayerPluginFlv]
});
}
creatPlayer();
$playBtn.addEventListener('click', creatPlayer);
$fileBtn.addEventListener('change', () => {
const file = $fileBtn.files[0];
creatPlayer(file);
});
})();
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+711 -39
View File
@@ -170,6 +170,36 @@
};
var tinyEmitter = E;
function _arrayWithoutHoles(arr) {
if (Array.isArray(arr)) {
for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) {
arr2[i] = arr[i];
}
return arr2;
}
}
var arrayWithoutHoles = _arrayWithoutHoles;
function _iterableToArray(iter) {
if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
}
var iterableToArray = _iterableToArray;
function _nonIterableSpread() {
throw new TypeError("Invalid attempt to spread non-iterable instance");
}
var nonIterableSpread = _nonIterableSpread;
function _toConsumableArray(arr) {
return arrayWithoutHoles(arr) || iterableToArray(arr) || nonIterableSpread();
}
var toConsumableArray = _toConsumableArray;
function _isNativeFunction(fn) {
return Function.toString.call(fn).indexOf("[native code]") !== -1;
}
@@ -270,85 +300,727 @@
return FlvError;
}(wrapNativeSuper(Error));
function errorHandle(condition, msg) {
if (!condition) {
throw new FlvError(msg);
}
}
function mergeTypedArrays(a, b) {
var c = new a.constructor(a.length + b.length);
c.set(a);
c.set(b, a.length);
return c;
}
function sleep() {
var ms = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : 0;
return new Promise(function (resolve) {
return setTimeout(resolve, ms);
});
}
function getUint8Sum(arr) {
return arr.reduce(function (totle, num, index) {
return totle + num * Math.pow(256, arr.length - index - 1);
}, 0);
}
function string2Bin(str) {
var result = [];
var CheckSupport = function CheckSupport() {
classCallCheck(this, CheckSupport);
for (var i = 0; i < str.length; i += 1) {
result.push(Number(str.charCodeAt(i).toString(10)));
}
return result;
}
function bin2String(array) {
var _String$fromCharCode;
return (_String$fromCharCode = String.fromCharCode).call.apply(_String$fromCharCode, [String].concat(toConsumableArray(array)));
}
function bin2Float(array) {
var view = new DataView(new ArrayBuffer(array.length));
array.forEach(function (b, i) {
view.setUint8(i, b);
});
return view.getFloat64(0);
}
function bin2Boolean(bin) {
return bin === 1;
}
function log(name) {
var msg = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : '';
console.log("[".concat(name, "] ").concat(msg));
}
function readUint8(uint8) {
var index = 0;
return function read(length) {
var tempUint8 = new Uint8Array(length);
for (var i = 0; i < length; i += 1) {
tempUint8[i] = uint8[index];
index += 1;
}
read.index = index;
return tempUint8;
};
}
var utils = /*#__PURE__*/Object.freeze({
errorHandle: errorHandle,
mergeTypedArrays: mergeTypedArrays,
sleep: sleep,
getUint8Sum: getUint8Sum,
string2Bin: string2Bin,
bin2String: bin2String,
bin2Float: bin2Float,
bin2Boolean: bin2Boolean,
log: log,
readUint8: readUint8
});
function checkSupport(options) {
var mediaElement = options.mediaElement,
url = options.url;
errorHandle(mediaElement instanceof HTMLVideoElement, 'The first parameter is not a video tag element');
errorHandle(typeof url === 'string' || url instanceof File && url.type === 'video/x-flv', 'The second parameter is not a string type or flv file');
var MP4H264MimeCodec = 'video/mp4; codecs="avc1.42001E, mp4a.40.2"';
var videoElement = window.document.createElement('video');
var canPlay = videoElement.canPlayType(MP4H264MimeCodec);
var canPlay = mediaElement.canPlayType(MP4H264MimeCodec);
errorHandle(window.MediaSource && window.MediaSource.isTypeSupported(MP4H264MimeCodec) && (canPlay === 'probably' || canPlay === 'maybe'), "Unsupported MIME type or codec: ".concat(MP4H264MimeCodec));
errorHandle(typeof window.Promise === 'function', "Unsupported 'Promise' method");
errorHandle(typeof window.fetch === 'function', "Unsupported 'fetch' method");
errorHandle(typeof window.Worker === 'function', "Unsupported 'Worker' method");
errorHandle(typeof window.ReadableStream === 'function', "Unsupported 'ReadableStream' method");
}
var EventProxy =
/*#__PURE__*/
function () {
function EventProxy() {
classCallCheck(this, EventProxy);
this.destroyEvents = [];
this.proxy = this.proxy.bind(this);
}
createClass(EventProxy, [{
key: "proxy",
value: function proxy(target, name, callback) {
var option = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : {};
target.addEventListener(name, callback, option);
this.destroyEvents.push(function () {
target.removeEventListener(name, callback, option);
});
}
}, {
key: "destroy",
value: function destroy() {
this.destroyEvents.forEach(function (event) {
return event();
});
}
}]);
return EventProxy;
}();
var CreatWorker =
/*#__PURE__*/
function () {
function CreatWorker() {
classCallCheck(this, CreatWorker);
this.workers = new Map();
}
createClass(CreatWorker, [{
key: "add",
value: function add(name, fn) {
if (!this.workers.has(name)) {
this.workers.set(name, CreatWorker.create(fn));
}
}
}, {
key: "run",
value: function run(name) {
var worker = this.workers.get(name);
for (var _len = arguments.length, args = new Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
args[_key - 1] = arguments[_key];
}
return worker.post(args);
}
}, {
key: "kill",
value: function kill(name) {
var worker = this.workers.get(name);
worker.kill();
}
}, {
key: "killAll",
value: function killAll() {
this.workers.forEach(function (worker) {
worker.kill();
});
}
}], [{
key: "fnToStr",
value: function fnToStr(fn) {
return "\n self.onmessage = event => {\n return self.postMessage((".concat(fn, ").apply(null, event.data));\n }\n ");
}
}, {
key: "create",
value: function create(fn) {
var blob = new Blob([CreatWorker.fnToStr(fn)], {
type: 'application/javascript'
});
var objectURL = window.URL.createObjectURL(blob);
var worker = new Worker(objectURL);
worker.kill = function () {
URL.revokeObjectURL(objectURL);
worker.terminate();
};
worker.post = function (args) {
return new Promise(function (resolve, reject) {
worker.onmessage = function (event) {
resolve(event.data);
};
worker.onerror = function (error) {
reject(error);
};
worker.postMessage(args);
});
};
return worker;
}
}]);
return CreatWorker;
}();
var config = {
mediaSource: {
propertys: ['activeSourceBuffers', 'duration', 'readyState', 'sourceBuffers'],
methods: ['addSourceBuffer', 'endOfStream', 'removeSourceBuffer', 'clearLiveSeekableRange', 'setLiveSeekableRange'],
events: ['sourceclose', 'sourceended', 'sourceopen']
},
sourceBuffer: {
propertys: ['mode', 'updating', 'buffered', 'timestampOffset', 'audioTracks', 'videoTracks', 'textTracks', 'appendWindowStart', 'appendWindowEnd', 'trackDefaults'],
methods: ['appendBuffer', 'appendStream', 'abort', 'remove'],
events: ['abort', 'error', 'update', 'updateend', 'updatestart']
},
sourceBufferList: {
propertys: ['length'],
events: ['addsourcebuffer', 'removesourcebuffer']
}
};
var CreatMediaSource = function CreatMediaSource(flv) {
classCallCheck(this, CreatMediaSource);
var CreatMediaSource =
/*#__PURE__*/
function () {
function CreatMediaSource(flv) {
classCallCheck(this, CreatMediaSource);
this.mediaSource = new MediaSource();
this.url = URL.createObjectURL(this.mediaSource);
flv.mediaElement.src = this.url;
};
this.flv = flv;
this.creatUrl();
this.eventBind();
}
createClass(CreatMediaSource, [{
key: "creatUrl",
value: function creatUrl() {
var _this$flv = this.flv,
mediaElement = _this$flv.options.mediaElement,
destroyEvents = _this$flv.events.destroyEvents;
this.mediaSource = new MediaSource();
var url = URL.createObjectURL(this.mediaSource);
destroyEvents.push(function () {
URL.revokeObjectURL(url);
});
mediaElement.src = url;
}
}, {
key: "eventBind",
value: function eventBind() {
var _this = this;
var proxy = this.flv.events.proxy;
config.mediaSource.events.forEach(function (eventName) {
proxy(_this.mediaSource, eventName, function (event) {
_this.flv.emit("mediaSource:".concat(event.type), event);
});
});
config.sourceBufferList.events.forEach(function (eventName) {
proxy(_this.mediaSource.sourceBuffers, eventName, function (event) {
_this.flv.emit("sourceBuffers:".concat(event.type), event);
});
proxy(_this.mediaSource.activeSourceBuffers, eventName, function (event) {
_this.flv.emit("activeSourceBuffers:".concat(event.type), event);
});
});
}
}]);
return CreatMediaSource;
}();
function _arrayWithHoles(arr) {
if (Array.isArray(arr)) return arr;
}
var arrayWithHoles = _arrayWithHoles;
function _iterableToArrayLimit(arr, i) {
var _arr = [];
var _n = true;
var _d = false;
var _e = undefined;
try {
for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
_arr.push(_s.value);
if (i && _arr.length === i) break;
}
} catch (err) {
_d = true;
_e = err;
} finally {
try {
if (!_n && _i["return"] != null) _i["return"]();
} finally {
if (_d) throw _e;
}
}
return _arr;
}
var iterableToArrayLimit = _iterableToArrayLimit;
function _nonIterableRest() {
throw new TypeError("Invalid attempt to destructure non-iterable instance");
}
var nonIterableRest = _nonIterableRest;
function _slicedToArray(arr, i) {
return arrayWithHoles(arr) || iterableToArrayLimit(arr, i) || nonIterableRest();
}
var slicedToArray = _slicedToArray;
function fetchStream(flv, url) {
flv.emit('flvFetchStart');
fetch(url).then(function (response) {
errorHandle(response.ok && response.status >= 200 && response.status <= 299, "".concat(response.status, " ").concat(response.statusText));
var contentType = response.headers.get('content-type');
errorHandle(contentType.includes('x-flv'), 'The resource does not seem to be a flv file');
return new Response(new ReadableStream({
start: function start(controller) {
var reader = response.body.getReader();
flv.on('destroy', function () {
reader.cancel();
});
flv.on('readerCancel', function () {
reader.cancel();
});
(function read() {
reader.read().then(function (_ref) {
var done = _ref.done,
value = _ref.value;
if (done) {
flv.emit('flvFetchEnd');
controller.close();
return;
}
flv.emit('flvFetching', new Uint8Array(value));
controller.enqueue(value);
read();
}).catch(function (error) {
throw error;
});
})();
},
cancel: function cancel() {
flv.emit('flvFetchCancel');
}
}));
});
}
function readFile(flv, file) {
flv.emit('flvFetchStart');
var proxy = flv.events.proxy;
var reader = new FileReader();
proxy(reader, 'load', function (e) {
var buffer = e.target.result;
var uint8 = new Uint8Array(buffer);
flv.emit('flvFetchEnd', uint8);
});
reader.readAsArrayBuffer(file);
}
function parseScripTag(scripTagBody) {
var readScripTag = readUint8(scripTagBody);
var metadata = Object.create(null);
var amf1 = Object.create(null);
var amf2 = Object.create(null);
var _readScripTag = readScripTag(1);
var _readScripTag2 = slicedToArray(_readScripTag, 1);
amf1.type = _readScripTag2[0];
errorHandle(amf1.type === 2, "AMF: [amf1] type expect 2, but got ".concat(amf1.type));
amf1.size = getUint8Sum(readScripTag(2));
amf1.string = bin2String(readScripTag(amf1.size));
var _readScripTag3 = readScripTag(1);
var _readScripTag4 = slicedToArray(_readScripTag3, 1);
amf2.type = _readScripTag4[0];
errorHandle(amf2.type === 8, "AMF: [amf1] type expect 8, but got ".concat(amf2.type));
amf2.size = getUint8Sum(readScripTag(4));
amf2.metaData = Object.create(null);
function getValue(type) {
var value = null;
if (type !== undefined) {
switch (type) {
case 0:
value = bin2Float(readScripTag(8));
break;
case 1:
value = bin2Boolean(readScripTag(1)[0]);
break;
case 2:
{
var valueLength = getUint8Sum(readScripTag(2));
value = bin2String(readScripTag(valueLength));
break;
}
case 3:
{
value = Object.create(null);
var endObject = false;
while (!endObject && readScripTag.index < scripTagBody.length) {
var nameLength = getUint8Sum(readScripTag(2));
var name = bin2String(readScripTag(nameLength));
var _type = readScripTag(1)[0];
if (name) {
value[name] = getValue(_type);
}
if (_type === 9) {
endObject = true;
}
}
break;
}
case 8:
{
value = Object.create(null);
var endArray = false;
while (!endArray && readScripTag.index < scripTagBody.length) {
var _nameLength = getUint8Sum(readScripTag(2));
var _name = bin2String(readScripTag(_nameLength));
var _type2 = readScripTag(1)[0];
if (_name) {
value[_name] = getValue(_type2);
}
if (_type2 === 9) {
endArray = true;
}
}
break;
}
case 10:
{
var _valueLength = getUint8Sum(readScripTag(4));
value = [];
for (var index = 0; index < _valueLength; index += 1) {
var itemType = readScripTag(1)[0];
value.push(getValue(itemType));
}
break;
}
case 12:
{
var _valueLength2 = getUint8Sum(readScripTag(4));
value = bin2String(readScripTag(_valueLength2));
break;
}
default:
console.log(readScripTag(scripTagBody.length - readScripTag.index - 1));
errorHandle(false, "AMF: Unknown metaData type: ".concat(type));
break;
}
}
return value;
}
while (readScripTag.index < scripTagBody.length) {
var nameLength = getUint8Sum(readScripTag(2));
var name = bin2String(readScripTag(nameLength));
var type = readScripTag(1)[0];
if (name) {
amf2.metaData[name] = getValue(type);
}
}
errorHandle(readScripTag.index === scripTagBody.length, 'AMF: Seems to be incompletely parsed');
errorHandle(amf2.size === Object.keys(amf2.metaData).length, 'AMF: [amf2] length does not match');
metadata.amf1 = amf1;
metadata.amf2 = amf2;
return metadata;
}
var FlvParse =
/*#__PURE__*/
function () {
function FlvParse(flv) {
var _this = this;
classCallCheck(this, FlvParse);
this.flv = flv;
var _flv$options = flv.options,
url = _flv$options.url,
debug = _flv$options.debug;
this.uint8 = new Uint8Array(0);
this.index = 0;
this.header = null;
this.scripTag = null;
this.tags = [];
this.done = false;
flv.on('flvFetchStart', function () {
if (debug) {
console.log('[flv-fetch-start]', url);
}
});
flv.on('flvFetchCancel', function () {
if (debug) {
console.log('[flv-fetch-cancel]');
}
});
flv.on('flvFetching', function (uint8) {
_this.uint8 = mergeTypedArrays(_this.uint8, uint8);
_this.parse();
});
flv.on('flvFetchEnd', function (uint8) {
if (debug) {
console.log('[flv-fetch-end]');
}
_this.done = true;
if (uint8) {
_this.uint8 = uint8;
_this.index = 0;
_this.header = null;
_this.scripTag = null;
_this.tags = [];
_this.parse();
}
flv.emit('flvParseDone');
if (debug) {
console.log('[flv-parse-done]');
}
});
if (typeof url === 'string') {
fetchStream(flv, url);
} else {
readFile(flv, url);
}
}
createClass(FlvParse, [{
key: "parse",
value: function parse() {
var debug = this.flv.options.debug;
if (this.uint8.length >= 13 && !this.header) {
var header = Object.create(null);
header.signature = bin2String(this.read(3));
var _this$read = this.read(1);
var _this$read2 = slicedToArray(_this$read, 1);
header.version = _this$read2[0];
var _this$read3 = this.read(1);
var _this$read4 = slicedToArray(_this$read3, 1);
header.flags = _this$read4[0];
header.headersize = getUint8Sum(this.read(4));
this.header = header;
this.read(4);
this.flv.emit('flvParseHeader', this.header);
if (debug) {
console.log('[flv-parse-header]', this.header);
}
}
while (this.index < this.uint8.length) {
var tag = Object.create(null);
var _this$read5 = this.read(1);
var _this$read6 = slicedToArray(_this$read5, 1);
tag.tagType = _this$read6[0];
tag.dataSize = getUint8Sum(this.read(3));
tag.timestamp = this.read(4);
tag.streamID = this.read(3);
tag.body = this.read(tag.dataSize);
this.tags.push(tag);
this.read(4);
switch (tag.tagType) {
case 18:
this.scripTag = parseScripTag(tag.body);
this.flv.emit('parseScripTag', this.scripTag);
if (debug) {
console.log('[flv-parse-scrip-tag]', this.scripTag);
}
break;
default:
break;
}
this.flv.emit('flvParseTag', tag);
}
}
}, {
key: "read",
value: function read(length) {
var tempUint8 = new Uint8Array(length);
for (var i = 0; i < length; i += 1) {
tempUint8[i] = this.uint8[this.index];
this.index += 1;
}
return tempUint8;
}
}]);
return FlvParse;
}();
var id = 0;
var Flv =
/*#__PURE__*/
function (_Emitter) {
inherits(Flv, _Emitter);
function Flv(mediaElement, url) {
function Flv(options) {
var _this;
classCallCheck(this, Flv);
_this = possibleConstructorReturn(this, getPrototypeOf(Flv).call(this));
_this.mediaElement = mediaElement;
_this.url = url;
_this.support = new CheckSupport(assertThisInitialized(assertThisInitialized(_this)));
_this.options = Object.assign({}, Flv.DEFAULTS, options);
checkSupport(_this.options);
_this.events = new EventProxy(assertThisInitialized(assertThisInitialized(_this)));
_this.workers = new CreatWorker(assertThisInitialized(assertThisInitialized(_this)));
_this.mediaSource = new CreatMediaSource(assertThisInitialized(assertThisInitialized(_this)));
_this.flvData = new FlvParse(assertThisInitialized(assertThisInitialized(_this)));
id += 1;
_this.id = id;
Flv.instances.push(assertThisInitialized(assertThisInitialized(_this)));
return _this;
}
createClass(Flv, [{
key: "load",
value: function load() {
console.log(this);
}
}, {
key: "destroy",
value: function destroy() {
console.log(this);
this.events.destroy();
this.workers.killAll();
Flv.instances.splice(Flv.instances.indexOf(this), 1);
this.emit('destroy');
}
}], [{
key: "DEFAULTS",
get: function get() {
return {
mediaElement: '',
url: '',
debug: false
};
}
}, {
key: "version",
get: function get() {
return '1.0.6';
}
}, {
key: "config",
get: function get() {
return config;
}
}, {
key: "utils",
get: function get() {
return utils;
}
}]);
return Flv;
}(tinyEmitter);
Object.defineProperty(Flv, 'instances', {
value: []
});
window.Flv = Flv;
function artplayerPluginFlv(art) {
var flv = null;
art.on('destroy', function () {
if (flv) {
flv.destroy();
}
});
return {
flv: flv,
init: function init(mediaElement, url) {
flv = new Flv(mediaElement, url);
flv.load();
}
};
}
window.artplayerPluginFlv = artplayerPluginFlv;
exports.default = artplayerPluginFlv;
exports.default = Flv;
Object.defineProperty(exports, '__esModule', { value: true });
+1 -1
View File
@@ -1 +1 @@
{"version":3,"file":"artplayer-plugin-flv.js","sources":["../../node_modules/@babel/runtime/helpers/classCallCheck.js","../../node_modules/@babel/runtime/helpers/createClass.js","../../node_modules/@babel/runtime/helpers/typeof.js","../../node_modules/@babel/runtime/helpers/assertThisInitialized.js","../../node_modules/@babel/runtime/helpers/possibleConstructorReturn.js","../../node_modules/@babel/runtime/helpers/getPrototypeOf.js","../../node_modules/@babel/runtime/helpers/setPrototypeOf.js","../../node_modules/@babel/runtime/helpers/inherits.js","../../packages/artplayer-plugin-flv/node_modules/tiny-emitter/index.js","../../node_modules/@babel/runtime/helpers/isNativeFunction.js","../../node_modules/@babel/runtime/helpers/construct.js","../../node_modules/@babel/runtime/helpers/wrapNativeSuper.js","../../packages/artplayer-plugin-flv/src/flv/utils.js","../../packages/artplayer-plugin-flv/src/flv/checkSupport.js","../../packages/artplayer-plugin-flv/src/flv/creatMediaSource.js","../../packages/artplayer-plugin-flv/src/flv/index.js","../../packages/artplayer-plugin-flv/src/index.js"],"sourcesContent":["function _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}\n\nmodule.exports = _classCallCheck;","function _defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, descriptor.key, descriptor);\n }\n}\n\nfunction _createClass(Constructor, protoProps, staticProps) {\n if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n if (staticProps) _defineProperties(Constructor, staticProps);\n return Constructor;\n}\n\nmodule.exports = _createClass;","function _typeof2(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof2(obj); }\n\nfunction _typeof(obj) {\n if (typeof Symbol === \"function\" && _typeof2(Symbol.iterator) === \"symbol\") {\n module.exports = _typeof = function _typeof(obj) {\n return _typeof2(obj);\n };\n } else {\n module.exports = _typeof = function _typeof(obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : _typeof2(obj);\n };\n }\n\n return _typeof(obj);\n}\n\nmodule.exports = _typeof;","function _assertThisInitialized(self) {\n if (self === void 0) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return self;\n}\n\nmodule.exports = _assertThisInitialized;","var _typeof = require(\"../helpers/typeof\");\n\nvar assertThisInitialized = require(\"./assertThisInitialized\");\n\nfunction _possibleConstructorReturn(self, call) {\n if (call && (_typeof(call) === \"object\" || typeof call === \"function\")) {\n return call;\n }\n\n return assertThisInitialized(self);\n}\n\nmodule.exports = _possibleConstructorReturn;","function _getPrototypeOf(o) {\n module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {\n return o.__proto__ || Object.getPrototypeOf(o);\n };\n return _getPrototypeOf(o);\n}\n\nmodule.exports = _getPrototypeOf;","function _setPrototypeOf(o, p) {\n module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n o.__proto__ = p;\n return o;\n };\n\n return _setPrototypeOf(o, p);\n}\n\nmodule.exports = _setPrototypeOf;","var setPrototypeOf = require(\"./setPrototypeOf\");\n\nfunction _inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" && superClass !== null) {\n throw new TypeError(\"Super expression must either be null or a function\");\n }\n\n subClass.prototype = Object.create(superClass && superClass.prototype, {\n constructor: {\n value: subClass,\n writable: true,\n configurable: true\n }\n });\n if (superClass) setPrototypeOf(subClass, superClass);\n}\n\nmodule.exports = _inherits;","function E () {\n // Keep this empty so it's easier to inherit from\n // (via https://github.com/lipsmack from https://github.com/scottcorgan/tiny-emitter/issues/3)\n}\n\nE.prototype = {\n on: function (name, callback, ctx) {\n var e = this.e || (this.e = {});\n\n (e[name] || (e[name] = [])).push({\n fn: callback,\n ctx: ctx\n });\n\n return this;\n },\n\n once: function (name, callback, ctx) {\n var self = this;\n function listener () {\n self.off(name, listener);\n callback.apply(ctx, arguments);\nLine truncated
{"version":3,"file":"artplayer-plugin-flv.js","sources":["../../node_modules/@babel/runtime/helpers/classCallCheck.js","../../node_modules/@babel/runtime/helpers/createClass.js","../../node_modules/@babel/runtime/helpers/typeof.js","../../node_modules/@babel/runtime/helpers/assertThisInitialized.js","../../node_modules/@babel/runtime/helpers/possibleConstructorReturn.js","../../node_modules/@babel/runtime/helpers/getPrototypeOf.js","../../node_modules/@babel/runtime/helpers/setPrototypeOf.js","../../node_modules/@babel/runtime/helpers/inherits.js","../../packages/artplayer-plugin-flv/node_modules/tiny-emitter/index.js","../../node_modules/@babel/runtime/helpers/arrayWithoutHoles.js","../../node_modules/@babel/runtime/helpers/iterableToArray.js","../../node_modules/@babel/runtime/helpers/nonIterableSpread.js","../../node_modules/@babel/runtime/helpers/toConsumableArray.js","../../node_modules/@babel/runtime/helpers/isNativeFunction.js","../../node_modules/@babel/runtime/helpers/construct.js","../../node_modules/@babel/runtime/helpers/wrapNativeSuper.js","../../packages/artplayer-plugin-flv/src/utils/flvError.js","../../packages/artplayer-plugin-flv/src/utils/index.js","../../packages/artplayer-plugin-flv/src/utils/checkSupport.js","../../packages/artplayer-plugin-flv/src/eventProxy.js","../../packages/artplayer-plugin-flv/src/creatWorker.js","../../packages/artplayer-plugin-flv/src/config.js","../../packages/artplayer-plugin-flv/src/creatMediaSource.js","../../node_modules/@babel/runtime/helpers/arrayWithHoles.js","../../node_modules/@babel/runtime/helpers/iterableToArrayLimit.js","../../node_modules/@babel/runtime/helpers/nonIterableRest.js","../../node_modules/@babel/runtime/helpers/slicedToArray.js","../../packages/artplayer-plugin-flv/src/flvParse/fetchStream.js","../../packages/artplayer-plugin-flv/src/flvParse/readFile.js","../../packages/artplayer-plugin-flv/src/flvParse/parseScripTag.js","../../packages/artplayer-plugin-flv/src/flvParse/index.js","../../packages/artplayer-plugin-flv/src/index.js"],"sourcesContent":["function _classCallCheck(instance, Constructor) {\n if (!(instance instanceof Constructor)) {\n throw new TypeError(\"Cannot call a class as a function\");\n }\n}\n\nmodule.exports = _classCallCheck;","function _defineProperties(target, props) {\n for (var i = 0; i < props.length; i++) {\n var descriptor = props[i];\n descriptor.enumerable = descriptor.enumerable || false;\n descriptor.configurable = true;\n if (\"value\" in descriptor) descriptor.writable = true;\n Object.defineProperty(target, descriptor.key, descriptor);\n }\n}\n\nfunction _createClass(Constructor, protoProps, staticProps) {\n if (protoProps) _defineProperties(Constructor.prototype, protoProps);\n if (staticProps) _defineProperties(Constructor, staticProps);\n return Constructor;\n}\n\nmodule.exports = _createClass;","function _typeof2(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof2 = function _typeof2(obj) { return typeof obj; }; } else { _typeof2 = function _typeof2(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof2(obj); }\n\nfunction _typeof(obj) {\n if (typeof Symbol === \"function\" && _typeof2(Symbol.iterator) === \"symbol\") {\n module.exports = _typeof = function _typeof(obj) {\n return _typeof2(obj);\n };\n } else {\n module.exports = _typeof = function _typeof(obj) {\n return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : _typeof2(obj);\n };\n }\n\n return _typeof(obj);\n}\n\nmodule.exports = _typeof;","function _assertThisInitialized(self) {\n if (self === void 0) {\n throw new ReferenceError(\"this hasn't been initialised - super() hasn't been called\");\n }\n\n return self;\n}\n\nmodule.exports = _assertThisInitialized;","var _typeof = require(\"../helpers/typeof\");\n\nvar assertThisInitialized = require(\"./assertThisInitialized\");\n\nfunction _possibleConstructorReturn(self, call) {\n if (call && (_typeof(call) === \"object\" || typeof call === \"function\")) {\n return call;\n }\n\n return assertThisInitialized(self);\n}\n\nmodule.exports = _possibleConstructorReturn;","function _getPrototypeOf(o) {\n module.exports = _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {\n return o.__proto__ || Object.getPrototypeOf(o);\n };\n return _getPrototypeOf(o);\n}\n\nmodule.exports = _getPrototypeOf;","function _setPrototypeOf(o, p) {\n module.exports = _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {\n o.__proto__ = p;\n return o;\n };\n\n return _setPrototypeOf(o, p);\n}\n\nmodule.exports = _setPrototypeOf;","var setPrototypeOf = require(\"./setPrototypeOf\");\n\nfunction _inherits(subClass, superClass) {\n if (typeof superClass !== \"function\" Line truncated
@@ -0,0 +1,58 @@
export default {
mediaSource: {
propertys: [
'activeSourceBuffers',
'duration',
'readyState',
'sourceBuffers',
],
methods: [
'addSourceBuffer',
'endOfStream',
'removeSourceBuffer',
'clearLiveSeekableRange',
'setLiveSeekableRange',
],
events: [
'sourceclose',
'sourceended',
'sourceopen',
],
},
sourceBuffer: {
propertys: [
'mode',
'updating',
'buffered',
'timestampOffset',
'audioTracks',
'videoTracks',
'textTracks',
'appendWindowStart',
'appendWindowEnd',
'trackDefaults',
],
methods: [
'appendBuffer',
'appendStream',
'abort',
'remove',
],
events: [
'abort',
'error',
'update',
'updateend',
'updatestart',
],
},
sourceBufferList: {
propertys: [
'length',
],
events: [
'addsourcebuffer',
'removesourcebuffer',
],
},
};
@@ -0,0 +1,43 @@
import config from './config';
export default class CreatMediaSource {
constructor(flv) {
this.flv = flv;
this.creatUrl();
this.eventBind();
}
creatUrl() {
const {
options: { mediaElement },
events: { destroyEvents },
} = this.flv;
this.mediaSource = new MediaSource();
const url = URL.createObjectURL(this.mediaSource);
destroyEvents.push(() => {
URL.revokeObjectURL(url);
});
mediaElement.src = url;
}
eventBind() {
const {
events: { proxy },
} = this.flv;
config.mediaSource.events.forEach(eventName => {
proxy(this.mediaSource, eventName, event => {
this.flv.emit(`mediaSource:${event.type}`, event);
});
});
config.sourceBufferList.events.forEach(eventName => {
proxy(this.mediaSource.sourceBuffers, eventName, event => {
this.flv.emit(`sourceBuffers:${event.type}`, event);
});
proxy(this.mediaSource.activeSourceBuffers, eventName, event => {
this.flv.emit(`activeSourceBuffers:${event.type}`, event);
});
});
}
}
@@ -0,0 +1,58 @@
export default class CreatWorker {
constructor() {
this.workers = new Map();
}
static fnToStr(fn) {
return `
self.onmessage = event => {
return self.postMessage((${fn}).apply(null, event.data));
}
`;
}
static create(fn) {
const blob = new Blob([CreatWorker.fnToStr(fn)], {
type: 'application/javascript',
});
const objectURL = window.URL.createObjectURL(blob);
const worker = new Worker(objectURL);
worker.kill = () => {
URL.revokeObjectURL(objectURL);
worker.terminate();
};
worker.post = args =>
new Promise((resolve, reject) => {
worker.onmessage = event => {
resolve(event.data);
};
worker.onerror = error => {
reject(error);
};
worker.postMessage(args);
});
return worker;
}
add(name, fn) {
if (!this.workers.has(name)) {
this.workers.set(name, CreatWorker.create(fn));
}
}
run(name, ...args) {
const worker = this.workers.get(name);
return worker.post(args);
}
kill(name) {
const worker = this.workers.get(name);
worker.kill();
}
killAll() {
this.workers.forEach(worker => {
worker.kill();
});
}
}
@@ -0,0 +1,17 @@
export default class EventProxy {
constructor() {
this.destroyEvents = [];
this.proxy = this.proxy.bind(this);
}
proxy(target, name, callback, option = {}) {
target.addEventListener(name, callback, option);
this.destroyEvents.push(() => {
target.removeEventListener(name, callback, option);
});
}
destroy() {
this.destroyEvents.forEach(event => event());
}
}
@@ -1,17 +0,0 @@
import { errorHandle } from './utils';
export default class CheckSupport {
constructor() {
const MP4H264MimeCodec = 'video/mp4; codecs="avc1.42001E, mp4a.40.2"';
const videoElement = window.document.createElement('video');
const canPlay = videoElement.canPlayType(MP4H264MimeCodec);
errorHandle(
window.MediaSource &&
window.MediaSource.isTypeSupported(MP4H264MimeCodec) &&
(canPlay === 'probably' || canPlay === 'maybe'),
`Unsupported MIME type or codec: ${MP4H264MimeCodec}`,
);
errorHandle(typeof window.Promise === 'function', "Unsupported 'Promise' method");
errorHandle(typeof window.fetch === 'function', "Unsupported 'fetch' method");
}
}
@@ -1,7 +0,0 @@
export default class CreatMediaSource {
constructor(flv) {
this.mediaSource = new MediaSource();
this.url = URL.createObjectURL(this.mediaSource);
flv.mediaElement.src = this.url;
}
}
@@ -1,24 +0,0 @@
import Emitter from 'tiny-emitter';
import CheckSupport from './checkSupport';
import CreatMediaSource from './creatMediaSource';
class Flv extends Emitter {
constructor(mediaElement, url) {
super();
this.mediaElement = mediaElement;
this.url = url;
this.support = new CheckSupport(this);
this.mediaSource = new CreatMediaSource(this);
}
load() {
console.log(this);
}
destroy() {
console.log(this);
}
}
window.Flv = Flv;
export default Flv;
@@ -0,0 +1,49 @@
import { errorHandle } from '../utils';
export default function fetchStream(flv, url) {
flv.emit('flvFetchStart');
fetch(url).then(response => {
errorHandle(
response.ok && response.status >= 200 && response.status <= 299,
`${response.status} ${response.statusText}`,
);
const contentType = response.headers.get('content-type');
errorHandle(contentType.includes('x-flv'), 'The resource does not seem to be a flv file');
return new Response(
new ReadableStream({
start(controller) {
const reader = response.body.getReader();
flv.on('destroy', () => {
reader.cancel();
});
flv.on('readerCancel', () => {
reader.cancel();
});
(function read() {
reader
.read()
.then(({ done, value }) => {
if (done) {
flv.emit('flvFetchEnd');
controller.close();
return;
}
flv.emit('flvFetching', new Uint8Array(value));
controller.enqueue(value);
read();
})
.catch(error => {
throw error;
});
})();
},
cancel() {
flv.emit('flvFetchCancel');
},
}),
);
});
}
@@ -0,0 +1,110 @@
import fetchStream from './fetchStream';
import readFile from './readFile';
import parseScripTag from './parseScripTag';
import { mergeTypedArrays, getUint8Sum, bin2String } from '../utils';
export default class FlvParse {
constructor(flv) {
this.flv = flv;
const { url, debug } = flv.options;
this.uint8 = new Uint8Array(0);
this.index = 0;
this.header = null;
this.scripTag = null;
this.tags = [];
this.done = false;
flv.on('flvFetchStart', () => {
if (debug) {
console.log('[flv-fetch-start]', url);
}
});
flv.on('flvFetchCancel', () => {
if (debug) {
console.log('[flv-fetch-cancel]');
}
});
flv.on('flvFetching', uint8 => {
this.uint8 = mergeTypedArrays(this.uint8, uint8);
this.parse();
});
flv.on('flvFetchEnd', uint8 => {
if (debug) {
console.log('[flv-fetch-end]');
}
this.done = true;
if (uint8) {
this.uint8 = uint8;
this.index = 0;
this.header = null;
this.scripTag = null;
this.tags = [];
this.parse();
}
flv.emit('flvParseDone');
if (debug) {
console.log('[flv-parse-done]');
}
});
if (typeof url === 'string') {
fetchStream(flv, url);
} else {
readFile(flv, url);
}
}
parse() {
const { debug } = this.flv.options;
if (this.uint8.length >= 13 && !this.header) {
const header = Object.create(null);
header.signature = bin2String(this.read(3));
[header.version] = this.read(1);
[header.flags] = this.read(1);
header.headersize = getUint8Sum(this.read(4));
this.header = header;
this.read(4);
this.flv.emit('flvParseHeader', this.header);
if (debug) {
console.log('[flv-parse-header]', this.header);
}
}
while (this.index < this.uint8.length) {
const tag = Object.create(null);
[tag.tagType] = this.read(1);
tag.dataSize = getUint8Sum(this.read(3));
tag.timestamp = this.read(4);
tag.streamID = this.read(3);
tag.body = this.read(tag.dataSize);
this.tags.push(tag);
this.read(4);
switch (tag.tagType) {
case 18:
this.scripTag = parseScripTag(tag.body);
this.flv.emit('parseScripTag', this.scripTag);
if (debug) {
console.log('[flv-parse-scrip-tag]', this.scripTag);
}
break;
default:
break;
}
this.flv.emit('flvParseTag', tag);
}
}
read(length) {
const tempUint8 = new Uint8Array(length);
for (let i = 0; i < length; i += 1) {
tempUint8[i] = this.uint8[this.index];
this.index += 1;
}
return tempUint8;
}
}
@@ -0,0 +1,104 @@
import { getUint8Sum, readUint8, bin2String, bin2Boolean, bin2Float, errorHandle } from '../utils';
export default function parseScripTag(scripTagBody) {
const readScripTag = readUint8(scripTagBody);
const metadata = Object.create(null);
const amf1 = Object.create(null);
const amf2 = Object.create(null);
[amf1.type] = readScripTag(1);
errorHandle(amf1.type === 2, `AMF: [amf1] type expect 2, but got ${amf1.type}`);
amf1.size = getUint8Sum(readScripTag(2));
amf1.string = bin2String(readScripTag(amf1.size));
[amf2.type] = readScripTag(1);
errorHandle(amf2.type === 8, `AMF: [amf1] type expect 8, but got ${amf2.type}`);
amf2.size = getUint8Sum(readScripTag(4));
amf2.metaData = Object.create(null);
function getValue(type) {
let value = null;
if (type !== undefined) {
switch (type) {
case 0:
value = bin2Float(readScripTag(8));
break;
case 1:
value = bin2Boolean(readScripTag(1)[0]);
break;
case 2: {
const valueLength = getUint8Sum(readScripTag(2));
value = bin2String(readScripTag(valueLength));
break;
}
case 3: {
value = Object.create(null);
let endObject = false;
while (!endObject && readScripTag.index < scripTagBody.length) {
const nameLength = getUint8Sum(readScripTag(2));
const name = bin2String(readScripTag(nameLength));
const type = readScripTag(1)[0];
if (name) {
value[name] = getValue(type);
}
if (type === 9) {
endObject = true;
}
}
break;
}
case 8: {
value = Object.create(null);
let endArray = false;
while (!endArray && readScripTag.index < scripTagBody.length) {
const nameLength = getUint8Sum(readScripTag(2));
const name = bin2String(readScripTag(nameLength));
const type = readScripTag(1)[0];
if (name) {
value[name] = getValue(type);
}
if (type === 9) {
endArray = true;
}
}
break;
}
case 10: {
const valueLength = getUint8Sum(readScripTag(4));
value = [];
for (let index = 0; index < valueLength; index += 1) {
const itemType = readScripTag(1)[0];
value.push(getValue(itemType));
}
break;
}
case 12: {
const valueLength = getUint8Sum(readScripTag(4));
value = bin2String(readScripTag(valueLength));
break;
}
default:
console.log(readScripTag(scripTagBody.length - readScripTag.index - 1));
errorHandle(false, `AMF: Unknown metaData type: ${type}`);
break;
}
}
return value;
}
while (readScripTag.index < scripTagBody.length) {
const nameLength = getUint8Sum(readScripTag(2));
const name = bin2String(readScripTag(nameLength));
const type = readScripTag(1)[0];
if (name) {
amf2.metaData[name] = getValue(type);
}
}
errorHandle(readScripTag.index === scripTagBody.length, 'AMF: Seems to be incompletely parsed');
errorHandle(amf2.size === Object.keys(amf2.metaData).length, 'AMF: [amf2] length does not match');
metadata.amf1 = amf1;
metadata.amf2 = amf2;
return metadata;
}
@@ -0,0 +1,11 @@
export default function readFile(flv, file) {
flv.emit('flvFetchStart');
const { proxy } = flv.events;
const reader = new FileReader();
proxy(reader, 'load', e => {
const buffer = e.target.result;
const uint8 = new Uint8Array(buffer);
flv.emit('flvFetchEnd', uint8);
});
reader.readAsArrayBuffer(file);
}
+53 -17
View File
@@ -1,22 +1,58 @@
import Flv from './flv';
import Emitter from 'tiny-emitter';
import checkSupport from './utils/checkSupport';
import EventProxy from './eventProxy';
import CreatWorker from './creatWorker';
import CreatMediaSource from './creatMediaSource';
import FlvParse from './flvParse';
import * as utils from './utils';
import config from './config';
function artplayerPluginFlv(art) {
let flv = null;
let id = 0;
class Flv extends Emitter {
constructor(options) {
super();
this.options = Object.assign({}, Flv.DEFAULTS, options);
checkSupport(this.options);
this.events = new EventProxy(this);
this.workers = new CreatWorker(this);
this.mediaSource = new CreatMediaSource(this);
this.flvData = new FlvParse(this);
id += 1;
this.id = id;
Flv.instances.push(this);
}
art.on('destroy', () => {
if (flv) {
flv.destroy();
}
});
static get DEFAULTS() {
return {
mediaElement: '',
url: '',
debug: false,
};
}
return {
flv,
init: (mediaElement, url) => {
flv = new Flv(mediaElement, url);
flv.load();
},
};
static get version() {
return '__VERSION__';
}
static get config() {
return config;
}
static get utils() {
return utils;
}
destroy() {
this.events.destroy();
this.workers.killAll();
Flv.instances.splice(Flv.instances.indexOf(this), 1);
this.emit('destroy');
}
}
window.artplayerPluginFlv = artplayerPluginFlv;
export default artplayerPluginFlv;
Object.defineProperty(Flv, 'instances', {
value: [],
});
window.Flv = Flv;
export default Flv;
@@ -0,0 +1,24 @@
import { errorHandle } from '.';
export default function checkSupport(options) {
const { mediaElement, url } = options;
errorHandle(mediaElement instanceof HTMLVideoElement, 'The first parameter is not a video tag element');
errorHandle(
typeof url === 'string' || (url instanceof File && url.type === 'video/x-flv'),
'The second parameter is not a string type or flv file',
);
const MP4H264MimeCodec = 'video/mp4; codecs="avc1.42001E, mp4a.40.2"';
const canPlay = mediaElement.canPlayType(MP4H264MimeCodec);
errorHandle(
window.MediaSource &&
window.MediaSource.isTypeSupported(MP4H264MimeCodec) &&
(canPlay === 'probably' || canPlay === 'maybe'),
`Unsupported MIME type or codec: ${MP4H264MimeCodec}`,
);
errorHandle(typeof window.Promise === 'function', "Unsupported 'Promise' method");
errorHandle(typeof window.fetch === 'function', "Unsupported 'fetch' method");
errorHandle(typeof window.Worker === 'function', "Unsupported 'Worker' method");
errorHandle(typeof window.ReadableStream === 'function', "Unsupported 'ReadableStream' method");
}
@@ -1,4 +1,4 @@
export class FlvError extends Error {
export default class FlvError extends Error {
constructor(message, context) {
super(message);
if (typeof Error.captureStackTrace === 'function') {
@@ -6,10 +6,4 @@ export class FlvError extends Error {
}
this.name = 'FlvError';
}
}
export function errorHandle(condition, msg) {
if (!condition) {
throw new FlvError(msg);
}
}
}
@@ -0,0 +1,63 @@
import FlvError from './flvError';
export function errorHandle(condition, msg) {
if (!condition) {
throw new FlvError(msg);
}
}
export function mergeTypedArrays(a, b) {
const c = new a.constructor(a.length + b.length);
c.set(a);
c.set(b, a.length);
return c;
}
export function sleep(ms = 0) {
return new Promise(resolve => setTimeout(resolve, ms));
}
export function getUint8Sum(arr) {
return arr.reduce((totle, num, index) => totle + num * 256 ** (arr.length - index - 1), 0);
}
export function string2Bin(str) {
const result = [];
for (let i = 0; i < str.length; i += 1) {
result.push(Number(str.charCodeAt(i).toString(10)));
}
return result;
}
export function bin2String(array) {
return String.fromCharCode.call(String, ...array);
}
export function bin2Float(array) {
const view = new DataView(new ArrayBuffer(array.length));
array.forEach((b, i) => {
view.setUint8(i, b);
});
return view.getFloat64(0);
}
export function bin2Boolean(bin) {
return bin === 1;
}
export function log(name, msg = '') {
console.log(`[${name}] ${msg}`);
}
export function readUint8(uint8) {
let index = 0;
return function read(length) {
const tempUint8 = new Uint8Array(length);
for (let i = 0; i < length; i += 1) {
tempUint8[i] = uint8[index];
index += 1;
}
read.index = index;
return tempUint8;
};
}