mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-27 17:56:23 +03:00
Jacob Trimble
77a987e8e0
Now when using deferred switches in Player, it will track whether to clear the buffer. This is needed because during startup, StreamingEngine will append the first media segment; the old code assumes that the buffer is empty. This is especially important for text tracks which may only be one segment. Change-Id: I03d97e2a674c8e713145dbc619b15d7c9402fb7f
84 lines
2.1 KiB
JavaScript
84 lines
2.1 KiB
JavaScript
/**
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* @license
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* Copyright 2016 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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goog.provide('shaka.util.MapUtils');
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/**
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* @namespace shaka.util.MapUtils
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* @summary A set of map/object utility functions.
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*/
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/**
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* Returns true if the map is empty; otherwise, returns false.
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*
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* @param {Object.<KEY, VALUE>} object
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* @return {boolean}
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* @template KEY,VALUE
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*/
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shaka.util.MapUtils.empty = function(object) {
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return !object || Object.keys(object).length == 0;
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};
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/**
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* Gets the map's values.
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*
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* @param {!Object.<KEY, VALUE>} object
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* @return {!Array.<VALUE>}
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* @template KEY,VALUE
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*/
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shaka.util.MapUtils.values = function(object) {
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return Object.keys(object).map(function(key) { return object[key]; });
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};
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/**
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* Converts the values in the given Map to a different value.
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*
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* @param {!Object.<KEY, VALUE>} object
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* @param {function(VALUE, KEY=):OUTPUT} callback
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* @return {!Object.<KEY, OUTPUT>}
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* @template KEY,VALUE,OUTPUT
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*/
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shaka.util.MapUtils.map = function(object, callback) {
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return Object.keys(object).reduce(function(ret, key) {
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var value = object[key];
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ret[key] = callback(value, key);
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return ret;
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}, {});
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};
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/**
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* Creates a new object where the values are filtered out acording to a
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* predicate.
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*
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* @param {!Object.<KEY, VALUE>} object
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* @param {function(KEY, VALUE):boolean} callback
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* @return {!Object.<KEY, VALUE>}
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* @template KEY,VALUE
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*/
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shaka.util.MapUtils.filter = function(object, callback) {
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return Object.keys(object).reduce(function(ret, key) {
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if (callback(key, object[key]))
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ret[key] = object[key];
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return ret;
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}, {});
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};
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