mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-16 16:16:40 +03:00
Joey Parrish
51563c118f
Since SegmentTimeline streams may not have segment numbers, we should not use segment numbers as reference IDs. These IDs must be unique for the buffering and streaming systems to function properly. This also adds assertions to check that reference IDs are unique. Issue #21. Change-Id: Ia94a48c68149283f87d27c6595a4f5a6cca07a27
51 lines
1.4 KiB
JavaScript
51 lines
1.4 KiB
JavaScript
/**
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* Copyright 2014 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* @fileoverview Array utility functions.
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*/
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goog.provide('shaka.util.ArrayUtils');
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/**
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* @namespace shaka.util.ArrayUtils
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* @summary Array utility functions.
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*/
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/**
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* Remove duplicate entries from an array.
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* @param {!Array.<T>} array
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* @param {function(T): (string|number)=} opt_keyFn An optional function which
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* takes an array item and converts it into a key. Use this if your array
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* items cannot be used as an index into an Object.
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* @return {!Array.<T>} A sorted list of the keys.
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* @template T
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*/
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shaka.util.ArrayUtils.removeDuplicates = function(array, opt_keyFn) {
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var set = {};
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for (var i = 0; i < array.length; ++i) {
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var key = opt_keyFn ? opt_keyFn(array[i]) : array[i].toString();
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set[key] = array[i];
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}
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var result = [];
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for (var k in set) {
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result.push(set[k]);
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}
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return result;
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};
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