mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-25 17:45:03 +03:00
Jacob Trimble
e5ce395f37
The bulk of the logic for gap jumping is handled in Playhead. It
tracks the current buffered ranges and jumps over any gaps that appear.
It listens for a special browser event ('waiting') for when the video
element runs out of playable frames.
This change also removes the logic for jumping gaps at the beginning
of the timeline. This is handled by the more general gap jumping
logic and works cross-browser.
Finally, this updates the buffering logic to only count the amount of
content buffered (i.e. ignoring the gaps). This fixes some bugs where
gaps in the content can result in StreamingEngine buffering forever
since it thinks only a little is buffered.
This includes full implementation of the logic, but this doesn't close
the issue since there aren't any integration tests yet. Those will
be added next.
Issue #555
Change-Id: Id99eb9fe469e8cf2c7464a3d70c3733791e806e0
109 lines
2.7 KiB
JavaScript
109 lines
2.7 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.FakeEvent');
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/**
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* Create an Event work-alike object based on the dictionary.
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* The event should contain all of the same properties from the dict.
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*
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* @param {string} type
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* @param {Object=} opt_dict
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* @constructor
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* @extends {Event}
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*/
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shaka.util.FakeEvent = function(type, opt_dict) {
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// Take properties from dict if present.
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var dict = opt_dict || {};
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for (var key in dict) {
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this[key] = dict[key];
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}
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// These Properties below cannot be set by dict. They are all provided for
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// compatibility with native events.
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/** @const {boolean} */
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this.bubbles = false;
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/** @type {boolean} */
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this.cancelable = false;
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/** @type {boolean} */
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this.defaultPrevented = false;
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/**
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* According to MDN, Chrome uses high-res timers instead of epoch time.
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* Follow suit so that timeStamps on FakeEvents use the same base as
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* on native Events.
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* @const {number}
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* @see https://developer.mozilla.org/en-US/docs/Web/API/Event/timeStamp
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*/
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this.timeStamp = window.performance && window.performance.now ?
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window.performance.now() : Date.now();
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/** @const {string} */
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this.type = type;
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/** @const {boolean} */
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this.isTrusted = false;
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/** @type {EventTarget} */
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this.currentTarget = null;
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/** @type {EventTarget} */
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this.target = null;
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/**
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* Non-standard property read by FakeEventTarget to stop processing listeners.
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* @type {boolean}
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*/
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this.stopped = false;
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};
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/**
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* Prevents the default action of the event. Has no effect if the event isn't
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* cancellable.
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* @override
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*/
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shaka.util.FakeEvent.prototype.preventDefault = function() {
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if (this.cancelable)
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this.defaultPrevented = true;
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};
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/**
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* Stops processing event listeners for this event. Provided for compatibility
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* with native Events.
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* @override
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*/
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shaka.util.FakeEvent.prototype.stopImmediatePropagation = function() {
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this.stopped = true;
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};
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/**
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* Does nothing, since FakeEvents do not bubble. Provided for compatibility
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* with native Events.
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* @override
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*/
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shaka.util.FakeEvent.prototype.stopPropagation = function() {};
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