rx-player
Version:
Canal+ HTML5 Video Player
139 lines (138 loc) • 7.92 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) {
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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 = createOrLoadSession;
var log_1 = require("../../log");
var create_session_1 = require("./create_session");
var clean_old_loaded_sessions_1 = require("./utils/clean_old_loaded_sessions");
var is_session_usable_1 = require("./utils/is_session_usable");
/**
* Handle MediaEncryptedEvents sent by a HTMLMediaElement:
* Either create a MediaKeySession, recuperate a previous MediaKeySession or
* load a persistent session.
*
* Some previously created MediaKeySession can be closed in this process to
* respect the maximum limit of concurrent MediaKeySession, as defined by the
* `EME_MAX_SIMULTANEOUS_MEDIA_KEY_SESSIONS` config property.
*
* You can refer to the events emitted to know about the current situation.
* @param {Object} initializationData
* @param {Object} stores
* @param {string} wantedSessionType
* @param {number} maxSessionCacheSize
* @param {Object} cancelSignal
* @returns {Promise}
*/
function createOrLoadSession(initializationData, stores, wantedSessionType, maxSessionCacheSize, cancelSignal) {
return __awaiter(this, void 0, void 0, function () {
var previousLoadedSession, loadedSessionsStore, persistentSessionsStore, entry, evt;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
previousLoadedSession = null;
loadedSessionsStore = stores.loadedSessionsStore, persistentSessionsStore = stores.persistentSessionsStore;
entry = loadedSessionsStore.reuse(initializationData);
if (entry !== null) {
previousLoadedSession = entry.mediaKeySession;
if ((0, is_session_usable_1.default)(previousLoadedSession)) {
log_1.default.info("DRM: Reuse loaded session", previousLoadedSession.sessionId);
return [2 /*return*/, {
type: "loaded-open-session" /* MediaKeySessionLoadingType.LoadedOpenSession */,
value: {
mediaKeySession: previousLoadedSession,
sessionType: entry.sessionType,
keySessionRecord: entry.keySessionRecord,
},
}];
}
else if (persistentSessionsStore !== null) {
// If the session is not usable anymore, we can also remove it from the
// PersistentSessionsStore.
// TODO Are we sure this is always what we want?
if (entry.mediaKeySession.sessionId !== "") {
persistentSessionsStore.delete(entry.mediaKeySession.sessionId);
}
}
}
if (!(previousLoadedSession !== null)) return [3 /*break*/, 2];
return [4 /*yield*/, loadedSessionsStore.closeSession(previousLoadedSession)];
case 1:
_a.sent();
if (cancelSignal.cancellationError !== null) {
throw cancelSignal.cancellationError; // stop here if cancelled since
}
_a.label = 2;
case 2: return [4 /*yield*/, (0, clean_old_loaded_sessions_1.default)(loadedSessionsStore,
// Account for the next session we will be creating
// Note that `maxSessionCacheSize < 0 has special semantic (no limit)`
maxSessionCacheSize <= 0 ? maxSessionCacheSize : maxSessionCacheSize - 1)];
case 3:
_a.sent();
if (cancelSignal.cancellationError !== null) {
throw cancelSignal.cancellationError; // stop here if cancelled since
}
return [4 /*yield*/, (0, create_session_1.default)(stores, initializationData, wantedSessionType, cancelSignal)];
case 4:
evt = _a.sent();
return [2 /*return*/, {
type: evt.type,
value: {
mediaKeySession: evt.value.mediaKeySession,
sessionType: evt.value.sessionType,
keySessionRecord: evt.value.keySessionRecord,
},
}];
}
});
});
}