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<h1 class="page-title">Source: VideoPlayer.js</h1>
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<pre class="prettyprint source linenums"><code>/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.
*/
var Guacamole = Guacamole || {};
/**
* Abstract video player which accepts, queues and plays back arbitrary video
* data. It is up to implementations of this class to provide some means of
* handling a provided Guacamole.InputStream and rendering the received data to
* the provided Guacamole.Display.VisibleLayer. Data received along the
* provided stream is to be played back immediately.
*
* @constructor
*/
Guacamole.VideoPlayer = function VideoPlayer() {
/**
* Notifies this Guacamole.VideoPlayer that all video up to the current
* point in time has been given via the underlying stream, and that any
* difference in time between queued video data and the current time can be
* considered latency.
*/
this.sync = function sync() {
// Default implementation - do nothing
};
};
/**
* Determines whether the given mimetype is supported by any built-in
* implementation of Guacamole.VideoPlayer, and thus will be properly handled
* by Guacamole.VideoPlayer.getInstance().
*
* @param {String} mimetype
* The mimetype to check.
*
* @returns {Boolean}
* true if the given mimetype is supported by any built-in
* Guacamole.VideoPlayer, false otherwise.
*/
Guacamole.VideoPlayer.isSupportedType = function isSupportedType(mimetype) {
// There are currently no built-in video players (and therefore no
// supported types)
return false;
};
/**
* Returns a list of all mimetypes supported by any built-in
* Guacamole.VideoPlayer, in rough order of priority. Beware that only the core
* mimetypes themselves will be listed. Any mimetype parameters, even required
* ones, will not be included in the list.
*
* @returns {String[]}
* A list of all mimetypes supported by any built-in Guacamole.VideoPlayer,
* excluding any parameters.
*/
Guacamole.VideoPlayer.getSupportedTypes = function getSupportedTypes() {
// There are currently no built-in video players (and therefore no
// supported types)
return [];
};
/**
* Returns an instance of Guacamole.VideoPlayer providing support for the given
* video format. If support for the given video format is not available, null
* is returned.
*
* @param {Guacamole.InputStream} stream
* The Guacamole.InputStream to read video data from.
*
* @param {Guacamole.Display.VisibleLayer} layer
* The destination layer in which this Guacamole.VideoPlayer should play
* the received video data.
*
* @param {String} mimetype
* The mimetype of the video data in the provided stream.
*
* @return {Guacamole.VideoPlayer}
* A Guacamole.VideoPlayer instance supporting the given mimetype and
* reading from the given stream, or null if support for the given mimetype
* is absent.
*/
Guacamole.VideoPlayer.getInstance = function getInstance(stream, layer, mimetype) {
// There are currently no built-in video players
return null;
};
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