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* The copyright in this software is being made available under the BSD License,
* included below. This software may be subject to other third party and contributor
* rights, including patent rights, and no such rights are granted under this license.
*
* Copyright (c) 2013, Dash Industry Forum.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
* * Neither the name of Dash Industry Forum nor the names of its
* contributors may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
import Constants from '../constants/Constants.js';
import DataChunk from '../vo/DataChunk.js';
import FragmentModel from '../models/FragmentModel.js';
import FragmentLoader from '../FragmentLoader.js';
import EventBus from '../../core/EventBus.js';
import Events from '../../core/events/Events.js';
import MediaPlayerEvents from '../MediaPlayerEvents.js';
import Errors from '../../core/errors/Errors.js';
import FactoryMaker from '../../core/FactoryMaker.js';
import Debug from '../../core/Debug.js';
function FragmentController(config) {
config = config || {};
const context = this.context;
const eventBus = EventBus(context).getInstance();
const errHandler = config.errHandler;
const mediaPlayerModel = config.mediaPlayerModel;
const dashMetrics = config.dashMetrics;
const debug = Debug(context).getInstance();
const streamInfo = config.streamInfo;
let instance,
logger,
fragmentModels;
function setup() {
logger = debug.getLogger(instance);
resetInitialSettings();
eventBus.on(MediaPlayerEvents.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, instance);
eventBus.on(MediaPlayerEvents.FRAGMENT_LOADING_PROGRESS, onFragmentLoadingCompleted, instance);
}
function getStreamId() {
return streamInfo.id;
}
function getModel(type) {
let model = fragmentModels[type];
if (!model) {
model = FragmentModel(context).create({
streamInfo: streamInfo,
type: type,
dashMetrics: dashMetrics,
fragmentLoader: FragmentLoader(context).create({
dashMetrics: dashMetrics,
mediaPlayerModel: mediaPlayerModel,
errHandler: errHandler,
settings: config.settings,
boxParser: config.boxParser,
eventBus: eventBus,
events: Events,
errors: Errors,
dashConstants: config.dashConstants,
urlUtils: config.urlUtils,
streamId: getStreamId()
}),
debug: debug,
eventBus: eventBus,
events: Events
});
fragmentModels[type] = model;
}
return model;
}
function resetInitialSettings() {
for (let model in fragmentModels) {
fragmentModels[model].reset();
}
fragmentModels = {};
}
function reset() {
eventBus.off(MediaPlayerEvents.FRAGMENT_LOADING_COMPLETED, onFragmentLoadingCompleted, this);
eventBus.off(MediaPlayerEvents.FRAGMENT_LOADING_PROGRESS, onFragmentLoadingCompleted, this);
resetInitialSettings();
}
function createDataChunk(bytes, request, streamId, endFragment) {
const chunk = new DataChunk();
chunk.streamId = streamId;
chunk.segmentType = request.type;
chunk.start = request.startTime;
chunk.duration = request.duration;
chunk.end = chunk.start + chunk.duration;
chunk.bytes = bytes;
chunk.index = request.index;
chunk.representation = request.representation;
chunk.endFragment = endFragment;
return chunk;
}
function onFragmentLoadingCompleted(e) {
// Event propagation may have been stopped (see MssHandler)
Iif (!e.sender) {
return;
}
const request = e.request;
const bytes = e.response;
const isInit = request.isInitializationRequest();
const strInfo = request.representation.mediaInfo.streamInfo;
if (e.error) {
if (request.mediaType === Constants.AUDIO || request.mediaType === Constants.VIDEO || (request.mediaType === Constants.TEXT && request.representation.mediaInfo.isFragmented)) {
// add service location to blacklist controller - only for audio or video. text should not set errors
eventBus.trigger(Events.SERVICE_LOCATION_BASE_URL_BLACKLIST_ADD, { entry: e.request.serviceLocation });
}
}
Iif (!bytes || !strInfo) {
logger.warn('No ' + request.mediaType + ' bytes to push or stream is inactive.');
return;
}
const chunk = createDataChunk(bytes, request, streamInfo.id, e.type !== Events.FRAGMENT_LOADING_PROGRESS);
eventBus.trigger(isInit ? Events.INIT_FRAGMENT_LOADED : Events.MEDIA_FRAGMENT_LOADED,
{ chunk, request },
{ streamId: strInfo.id, mediaType: request.mediaType }
);
}
instance = {
getStreamId,
getModel,
reset
};
setup();
return instance;
}
FragmentController.__dashjs_factory_name = 'FragmentController';
export default FactoryMaker.getClassFactory(FragmentController);
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