rx-player
Version:
Canal+ HTML5 Video Player
127 lines (126 loc) • 6.17 kB
JavaScript
;
/**
* Copyright 2015 CANAL+ Group
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype);
return g.next = verb(0), g["throw"] = verb(1), g["return"] = verb(2), typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (g && (g = 0, op[0] && (_ = 0)), _) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.default = loadChunkedSegmentData;
var isobmff_1 = require("../../parsers/containers/isobmff");
var byte_parsing_1 = require("../../utils/byte_parsing");
var fetch_1 = require("../../utils/request/fetch");
/**
* Load segments through a "chunk" mode (decodable chunk by decodable chunk).
*
* This method is particularly adapted to low-latency streams.
*
* @param {string} url - URL of the segment to download.
* @param {Object} requestOptions
* @param {Object|undefined} requestOptions.headers - Headers for the
* low-latency request
* @param {number|undefined} requestOptions.timeout - Request timeout for the
* low-latency request.
* @param {number|undefined} requestOptions.connectionTimeout - HTTP connection
* timeout for the low-latency request.
* @param {Object} callbacks
* @param {CancellationSignal} cancelSignal
* @returns {Promise}
*/
function loadChunkedSegmentData(url, requestOptions, callbacks, cancelSignal) {
return __awaiter(this, void 0, void 0, function () {
/**
* Called each time `fetch` has new data available.
* @param {Object} info
*/
function onData(info) {
var chunk = new Uint8Array(info.chunk);
var concatenated = partialChunk !== null ? (0, byte_parsing_1.concat)(partialChunk, chunk) : chunk;
var res = (0, isobmff_1.extractCompleteChunks)(concatenated);
var completeChunks = res[0];
partialChunk = res[1];
if (completeChunks !== null) {
completeChunks.forEach(function (completedChunk) {
callbacks.onNewChunk(completedChunk);
});
if (cancelSignal.isCancelled()) {
return;
}
}
callbacks.onProgress({
duration: info.duration,
size: info.size,
totalSize: info.totalSize,
});
if (cancelSignal.isCancelled()) {
return;
}
}
var partialChunk, res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
partialChunk = null;
return [4 /*yield*/, (0, fetch_1.default)({
url: url,
headers: requestOptions.headers,
onData: onData,
timeout: requestOptions.timeout,
connectionTimeout: requestOptions.connectionTimeout,
cancelSignal: cancelSignal,
})];
case 1:
res = _a.sent();
return [2 /*return*/, {
resultType: "chunk-complete",
resultData: res,
}];
}
});
});
}