Files
shaka-player/lib/util/manifest_parser_utils.js
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Jacob Trimble 624acc66b8 Add curly braces to all blocks.
Google style guide requires adding curly braces to all block statements
even if it is only has one line.  This fixes it by using eslint's
--fix flag followed by running clang-format to reformat the change.

Change-Id: Idc086c2aa8c02df5ef8b2140a11bfb9128eeb4bd
2018-02-21 11:23:34 -08:00

106 lines
2.8 KiB
JavaScript

/**
* @license
* Copyright 2016 Google Inc.
*
* 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.
*/
goog.provide('shaka.util.ManifestParserUtils');
goog.require('goog.Uri');
goog.require('shaka.util.Functional');
/**
* @namespace shaka.util.ManifestParserUtils
* @summary Utility functions for manifest parsing.
*/
/**
* Resolves an array of relative URIs to the given base URIs. This will result
* in M*N number of URIs.
*
* @param {!Array.<string>} baseUris
* @param {!Array.<string>} relativeUris
* @return {!Array.<string>}
*/
shaka.util.ManifestParserUtils.resolveUris = function(baseUris, relativeUris) {
const Functional = shaka.util.Functional;
if (relativeUris.length == 0) {
return baseUris;
}
let relativeAsGoog =
relativeUris.map(function(uri) { return new goog.Uri(uri); });
// Resolve each URI relative to each base URI, creating an Array of Arrays.
// Then flatten the Arrays into a single Array.
return baseUris.map(function(uri) { return new goog.Uri(uri); })
.map(function(base) { return relativeAsGoog.map(base.resolve.bind(base)); })
.reduce(Functional.collapseArrays, [])
.map(function(uri) { return uri.toString(); });
};
/**
* Creates a DrmInfo object from the given info.
*
* @param {string} keySystem
* @param {Array.<shakaExtern.InitDataOverride>} initData
* @return {shakaExtern.DrmInfo}
*/
shaka.util.ManifestParserUtils.createDrmInfo = function(keySystem, initData) {
return {
keySystem: keySystem,
licenseServerUri: '',
distinctiveIdentifierRequired: false,
persistentStateRequired: false,
audioRobustness: '',
videoRobustness: '',
serverCertificate: null,
initData: initData || [],
keyIds: []
};
};
/**
* @enum {string}
*/
shaka.util.ManifestParserUtils.ContentType = {
VIDEO: 'video',
AUDIO: 'audio',
TEXT: 'text',
APPLICATION: 'application'
};
/**
* @enum {string}
*/
shaka.util.ManifestParserUtils.TextStreamKind = {
SUBTITLE: 'subtitle',
CLOSED_CAPTION: 'caption'
};
/**
* Specifies how tolerant the player is to inaccurate segment start times and
* end times within a manifest. For example, gaps or overlaps between segments
* in a SegmentTimeline which are greater than or equal to this value will
* result in a warning message.
*
* @const {number}
*/
shaka.util.ManifestParserUtils.GAP_OVERLAP_TOLERANCE_SECONDS = 1 / 15;