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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 UTCTiming from '../../dash/vo/UTCTiming.js';
import FactoryMaker from '../../core/FactoryMaker.js';
import Settings from '../../core/Settings.js';
import {checkParameterType} from '../utils/SupervisorTools.js';
import Constants from '../constants/Constants.js';
import ExternalSubtitle from '../vo/ExternalSubtitle.js';
const DEFAULT_XHR_WITH_CREDENTIALS = false;
function CustomParametersModel() {
let instance,
utcTimingSources,
xhrWithCredentials,
requestInterceptors,
responseInterceptors,
licenseRequestFilters,
licenseResponseFilters,
customCapabilitiesFilters,
customInitialTrackSelectionFunction,
externalSubtitles,
customAbrRules;
const context = this.context;
const settings = Settings(context).getInstance();
function setup() {
xhrWithCredentials = {
default: DEFAULT_XHR_WITH_CREDENTIALS
};
_resetInitialSettings();
}
function _resetInitialSettings() {
requestInterceptors = [];
responseInterceptors = [];
licenseRequestFilters = [];
licenseResponseFilters = [];
customCapabilitiesFilters = [];
customAbrRules = [];
customInitialTrackSelectionFunction = null;
utcTimingSources = [];
externalSubtitles = new Set();
}
function reset() {
_resetInitialSettings();
}
function resetPlaybackSessionSpecificSettings() {
externalSubtitles = new Set();
}
function setConfig() {
}
/**
* Registers a custom initial track selection function. Only one function is allowed. Calling this method will overwrite a potentially existing function.
* @param {function} customFunc - the custom function that returns the initial track
*/
function setCustomInitialTrackSelectionFunction(customFunc) {
customInitialTrackSelectionFunction = customFunc;
}
/**
* Resets the custom initial track selection
*/
function resetCustomInitialTrackSelectionFunction() {
customInitialTrackSelectionFunction = null;
}
/**
* Returns the initial track selection function
* @return {function}
*/
function getCustomInitialTrackSelectionFunction() {
return customInitialTrackSelectionFunction;
}
/**
* Returns all license request filters
* @return {array}
*/
function getLicenseRequestFilters() {
return licenseRequestFilters;
}
/**
* Returns all license response filters
* @return {array}
*/
function getLicenseResponseFilters() {
return licenseResponseFilters;
}
/**
* Registers a license request filter. This enables application to manipulate/overwrite any request parameter and/or request data.
* The provided callback function shall return a promise that shall be resolved once the filter process is completed.
* The filters are applied in the order they are registered.
* @param {function} filter - the license request filter callback
*/
function registerLicenseRequestFilter(filter) {
licenseRequestFilters.push(filter);
}
/**
* Registers a license response filter. This enables application to manipulate/overwrite the response data
* The provided callback function shall return a promise that shall be resolved once the filter process is completed.
* The filters are applied in the order they are registered.
* @param {function} filter - the license response filter callback
*/
function registerLicenseResponseFilter(filter) {
licenseResponseFilters.push(filter);
}
/**
* Unregisters a license request filter.
* @param {function} filter - the license request filter callback
*/
function unregisterLicenseRequestFilter(filter) {
_unregisterFilter(licenseRequestFilters, filter);
}
/**
* Unregisters a license response filter.
* @param {function} filter - the license response filter callback
*/
function unregisterLicenseResponseFilter(filter) {
_unregisterFilter(licenseResponseFilters, filter);
}
/**
* Returns all custom capabilities filter
* @return {array}
*/
function getCustomCapabilitiesFilters() {
return customCapabilitiesFilters;
}
/**
* Registers a custom capabilities filter. This enables application to filter representations to use.
* The provided callback function shall return a boolean or promise resolving to a boolean based on whether or not to use the representation.
* The filters are applied in the order they are registered.
* @param {function} filter - the custom capabilities filter callback
*/
function registerCustomCapabilitiesFilter(filter) {
customCapabilitiesFilters.push(filter);
}
/**
* Unregisters a custom capabilities filter.
* @param {function} filter - the custom capabilities filter callback
*/
function unregisterCustomCapabilitiesFilter(filter) {
_unregisterFilter(customCapabilitiesFilters, filter);
}
/**
* Unregister a filter from the list of existing filers.
* @param {array} filters
* @param {function} filter
* @private
*/
function _unregisterFilter(filters, filter) {
let index = -1;
filters.some((item, i) => {
if (item === filter) {
index = i;
return true;
}
});
if (index < 0) {
return;
}
filters.splice(index, 1);
}
/**
* Iterate through the list of custom ABR rules and find the right rule by name
* @param {string} rulename
* @return {number} rule number
*/
function _findAbrCustomRuleIndex(rulename) {
let i;
for (i = 0; i < customAbrRules.length; i++) {
if (customAbrRules[i].rulename === rulename) {
return i;
}
}
return -1;
}
/**
* Add a custom ABR Rule
* Rule will be apply on next stream if a stream is being played
*
* @param {string} type - rule type (one of ['qualitySwitchRules','abandonFragmentRules'])
* @param {string} rulename - name of rule (used to identify custom rule). If one rule of same name has been added, then existing rule will be updated
* @param {object} rule - the rule object instance
* @throws {@link Constants#BAD_ARGUMENT_ERROR BAD_ARGUMENT_ERROR} if called with invalid arguments.
*/
function addAbrCustomRule(type, rulename, rule) {
if (typeof type !== 'string' || (type !== Constants.RULES_TYPES.ABANDON_FRAGMENT_RULES && type !== Constants.RULES_TYPES.QUALITY_SWITCH_RULES) ||
typeof rulename !== 'string') {
throw Constants.BAD_ARGUMENT_ERROR;
}
let index = _findAbrCustomRuleIndex(rulename);
if (index === -1) {
// add rule
customAbrRules.push({
type: type,
rulename: rulename,
rule: rule
});
} else E{
// update rule
customAbrRules[index].type = type;
customAbrRules[index].rule = rule;
}
}
/**
* Remove a custom ABR Rule
*
* @param {string} rulename - name of the rule to be removed
*/
function removeAbrCustomRule(rulename) {
if (rulename) {
let index = _findAbrCustomRuleIndex(rulename);
//if no rulename custom rule has been found, do nothing
if (index !== -1) {
// remove rule
customAbrRules.splice(index, 1);
}
} else {
//if no rulename is defined, remove all ABR custome rules
customAbrRules = [];
}
}
/**
* Remove all custom rules
*/
function removeAllAbrCustomRule() {
customAbrRules = [];
}
/**
* Return all ABR custom rules
* @return {array}
*/
function getAbrCustomRules() {
return customAbrRules;
}
/**
* Adds a request interceptor. This enables application to monitor, manipulate, overwrite any request parameter and/or request data.
* The provided callback function shall return a promise with updated request that shall be resolved once the process of the request is completed.
* The interceptors are applied in the order they are added.
* @param {function} interceptor - the request interceptor callback
*/
function addRequestInterceptor(interceptor) {
requestInterceptors.push(interceptor);
}
/**
* Adds a response interceptor. This enables application to monitor, manipulate, overwrite the response data
* The provided callback function shall return a promise with updated response that shall be resolved once the process of the response is completed.
* The interceptors are applied in the order they are added.
* @param {function} interceptor - the response interceptor callback
*/
function addResponseInterceptor(interceptor) {
responseInterceptors.push(interceptor);
}
/**
* Unregisters a request interceptor.
* @param {function} interceptor - the request interceptor callback
*/
function removeRequestInterceptor(interceptor) {
_unregisterFilter(requestInterceptors, interceptor);
}
/**
* Unregisters a response interceptor.
* @param {function} interceptor - the request interceptor callback
*/
function removeResponseInterceptor(interceptor) {
_unregisterFilter(responseInterceptors, interceptor);
}
/**
* Returns all request interceptors
* @return {array}
*/
function getRequestInterceptors() {
return requestInterceptors;
}
/**
* Returns all response interceptors
* @return {array}
*/
function getResponseInterceptors() {
return responseInterceptors;
}
function addExternalSubtitle(externalSubtitleObj) {
if (!externalSubtitleObj || typeof externalSubtitleObj.id === 'undefined' || !externalSubtitleObj.url || !externalSubtitleObj.language || !externalSubtitleObj.mimeType || typeof externalSubtitleObj.bandwidth === 'undefined') {
return
}
const externalSubtitle = new ExternalSubtitle(externalSubtitleObj);
if (!_hasExternalSubtitleByKeyValue('url', externalSubtitle.url) && !_hasExternalSubtitleByKeyValue('id', externalSubtitle.id)) {
externalSubtitles.add(externalSubtitle);
}
}
function removeExternalSubtitleByUrl(url) {
externalSubtitles.forEach((externalSubtitle) => {
if (externalSubtitle.url === url) {
externalSubtitles.delete(externalSubtitle);
}
})
}
function removeExternalSubtitleById(id) {
externalSubtitles.forEach((externalSubtitle) => {
if (externalSubtitle.id === id) {
externalSubtitles.delete(externalSubtitle);
}
})
}
function _hasExternalSubtitleByKeyValue(key, value) {
let found = false;
externalSubtitles.forEach((externalSubtitle) => {
if (externalSubtitle[key] === value) {
found = true;
}
});
return found;
}
function getExternalSubtitles() {
return externalSubtitles;
}
/**
* Add a UTC timing source at the top of the list
* @param {string} schemeIdUri
* @param {string} value
*/
function addUTCTimingSource(schemeIdUri, value) {
removeUTCTimingSource(schemeIdUri, value); //check if it already exists and remove if so.
let vo = new UTCTiming();
vo.schemeIdUri = schemeIdUri;
vo.value = value;
utcTimingSources.push(vo);
}
/**
* Return all UTC timing sources
* @return {array}
*/
function getUTCTimingSources() {
return utcTimingSources;
}
/**
* Remove a specific timing source from the array
* @param {string} schemeIdUri
* @param {string} value
*/
function removeUTCTimingSource(schemeIdUri, value) {
checkParameterType(schemeIdUri, 'string');
checkParameterType(value, 'string');
utcTimingSources.forEach(function (obj, idx) {
if (obj.schemeIdUri === schemeIdUri && obj.value === value) {
utcTimingSources.splice(idx, 1);
}
});
}
/**
* Remove all timing sources
*/
function clearDefaultUTCTimingSources() {
utcTimingSources = [];
}
/**
* Add the default timing source to the list
*/
function restoreDefaultUTCTimingSources() {
let defaultUtcTimingSource = settings.get().streaming.utcSynchronization.defaultTimingSource;
addUTCTimingSource(defaultUtcTimingSource.scheme, defaultUtcTimingSource.value);
}
function setXHRWithCredentialsForType(type, value) {
Iif (!type) {
Object.keys(xhrWithCredentials).forEach(key => {
setXHRWithCredentialsForType(key, value);
});
} else {
xhrWithCredentials[type] = !!value;
}
}
function getXHRWithCredentialsForType(type) {
const useCreds = xhrWithCredentials[type];
return useCreds === undefined ? xhrWithCredentials.default : useCreds;
}
instance = {
addAbrCustomRule,
addExternalSubtitle,
addRequestInterceptor,
addResponseInterceptor,
addUTCTimingSource,
clearDefaultUTCTimingSources,
getAbrCustomRules,
getCustomCapabilitiesFilters,
getCustomInitialTrackSelectionFunction,
getExternalSubtitles,
getLicenseRequestFilters,
getLicenseResponseFilters,
getRequestInterceptors,
getResponseInterceptors,
getUTCTimingSources,
getXHRWithCredentialsForType,
registerCustomCapabilitiesFilter,
registerLicenseRequestFilter,
registerLicenseResponseFilter,
removeAbrCustomRule,
removeAllAbrCustomRule,
removeExternalSubtitleById,
removeExternalSubtitleByUrl,
removeRequestInterceptor,
removeResponseInterceptor,
removeUTCTimingSource,
reset,
resetCustomInitialTrackSelectionFunction,
resetPlaybackSessionSpecificSettings,
restoreDefaultUTCTimingSources,
setConfig,
setCustomInitialTrackSelectionFunction,
setXHRWithCredentialsForType,
unregisterCustomCapabilitiesFilter,
unregisterLicenseRequestFilter,
unregisterLicenseResponseFilter,
};
setup();
return instance;
}
CustomParametersModel.__dashjs_factory_name = 'CustomParametersModel';
export default FactoryMaker.getSingletonFactory(CustomParametersModel);
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