mirror of
https://github.com/shaka-project/shaka-player.git
synced 2026-06-26 17:46:26 +03:00
Timothy Drews
fbea2279b3
* Allow segments from different streams (Representations) to coexist in buffer. * Only fetch a single segment at a time. * Remove id field from SegmentReference and remove SegmentRange. * Only start the Streams once the buffer is "full". * Stop DashVideoSource from triggering an extra resync during startup. * Make Task.abort call order deterministic. A follow-up patch is required to handle certain seek patterns in live streams. Issue #51 Change-Id: Ib7c9021471f1ed89323f19764463202b119cb491
86 lines
2.4 KiB
JavaScript
86 lines
2.4 KiB
JavaScript
/**
|
|
* Copyright 2015 Google Inc.
|
|
*
|
|
* Licensed 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.
|
|
*
|
|
* @fileoverview Implements a SegmentIndexSource that constructs a SegmentIndex
|
|
* from an existing set of SegmentReferences.
|
|
*/
|
|
|
|
goog.provide('shaka.media.OfflineSegmentIndexSource');
|
|
|
|
goog.require('goog.Uri');
|
|
goog.require('shaka.asserts');
|
|
goog.require('shaka.log');
|
|
goog.require('shaka.media.ISegmentIndexSource');
|
|
goog.require('shaka.media.SegmentIndex');
|
|
goog.require('shaka.media.SegmentReference');
|
|
goog.require('shaka.util.ContentDatabase');
|
|
|
|
|
|
|
|
/**
|
|
* Creates a OfflineSegmentIndexSource.
|
|
*
|
|
* @param {!Array.<!shaka.util.ContentDatabase.SegmentInformation>} segmentInfos
|
|
* @constructor
|
|
* @struct
|
|
* @implements {shaka.media.ISegmentIndexSource}
|
|
*/
|
|
shaka.media.OfflineSegmentIndexSource = function(segmentInfos) {
|
|
/** @private {Array.<!shaka.util.ContentDatabase.SegmentInformation>} */
|
|
this.segmentInfos_ = segmentInfos;
|
|
|
|
/** @private {shaka.media.SegmentIndex} */
|
|
this.segmentIndex_ = null;
|
|
};
|
|
|
|
|
|
/**
|
|
* @override
|
|
* @suppress {checkTypes} to set otherwise non-nullable types to null.
|
|
*/
|
|
shaka.media.OfflineSegmentIndexSource.prototype.destroy = function() {
|
|
this.segmentInfos_ = null;
|
|
|
|
if (this.segmentIndex_) {
|
|
this.segmentIndex_.destroy();
|
|
this.segmentIndex_ = null;
|
|
}
|
|
};
|
|
|
|
|
|
/** @override */
|
|
shaka.media.OfflineSegmentIndexSource.prototype.create = function() {
|
|
if (this.segmentIndex_) {
|
|
return Promise.resolve(this.segmentIndex_);
|
|
}
|
|
|
|
var references = [];
|
|
|
|
for (var i = 0; i < this.segmentInfos_.length; ++i) {
|
|
var info = this.segmentInfos_[i];
|
|
references.push(new shaka.media.SegmentReference(
|
|
info['start_time'],
|
|
info['end_time'],
|
|
info['start_byte'],
|
|
null /* endByte */,
|
|
new goog.Uri(info['url'])));
|
|
}
|
|
|
|
this.segmentInfos_ = null;
|
|
this.segmentIndex_ = new shaka.media.SegmentIndex(references);
|
|
return Promise.resolve(this.segmentIndex_);
|
|
};
|
|
|