All files / dash.js/src/streaming ExternalMediaSource.js

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/**
 * The copyright in this software is being made available under the BSD License,
 * included below. This software may be subject to other third party and contributor
 * rights, including patent rights, and no such rights are granted under this license.
 *
 * Copyright (c) 2013, Dash Industry Forum.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *  * Redistributions of source code must retain the above copyright notice, this
 *  list of conditions and the following disclaimer.
 *  * Redistributions in binary form must reproduce the above copyright notice,
 *  this list of conditions and the following disclaimer in the documentation and/or
 *  other materials provided with the distribution.
 *  * Neither the name of Dash Industry Forum nor the names of its
 *  contributors may be used to endorse or promote products derived from this software
 *  without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY
 *  EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 *  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
 *  INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 *  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 *  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 *  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 *  POSSIBILITY OF SUCH DAMAGE.
 */
import ExternalSourceBuffer from './ExternalSourceBuffer.js';
 
class ExternalMediaSource {
    constructor(eventBus) {
        this.eventBus = eventBus;
        this.reset();
    }
 
    get duration() {
        return this._duration;
    }
 
    set duration(value) {
        if (this._readyState !== 'open') {
            throw new Error('ExternalMediaSource is not open');
        }
        this._duration = value;
    }
 
    get readyState() {
        return this._readyState;
    }
 
    addSourceBuffer(mimeType) {
        if (this._readyState !== 'open') {
            throw new Error('ExternalMediaSource is not open');
        }
        const sourceBuffer = new ExternalSourceBuffer(mimeType, this.eventBus);
        this.sourceBuffers.set(sourceBuffer, mimeType);
        return sourceBuffer;
    }
 
    removeSourceBuffer(sourceBuffer) {
        if (!(this.sourceBuffers.has(sourceBuffer))) {
            throw new Error('ExternalSourceBuffer not found');
        }
        this.sourceBuffers.delete(sourceBuffer);
    }
 
    open() {
        this._readyState = 'open';
        this.eventBus.trigger('externalMediaSourceOpen', { });
    }
 
    endOfStream() {
        if (this._readyState !== 'open') {
            throw new Error('ExternalMediaSource is not open');
        }
        this._readyState = 'ended';
        this.eventBus.trigger('externalMediaSourceEnded', { });
    }
 
    close() {
        this._readyState = 'closed';
        this.eventBus.trigger('externalMediaSourceClosed', { });
    }
 
    reset() {
        this.sourceBuffers = new Map();
        this._duration = NaN;
        this._readyState = 'closed';
    }
}
 
export default ExternalMediaSource;