rx-player
Version:
Canal+ HTML5 Video Player
52 lines (49 loc) • 1.83 kB
text/typescript
/**
* Copyright 2015 CANAL+ Group
*
* 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.
*/
import type { IMediaElement } from "../../../compat/browser_compatibility_types";
import type { MainSourceBufferInterface } from "../../../mse/main_media_source_interface";
/**
* Remove buffer around wanted time, considering a margin around
* it that defines what must be kept :
* If time is 10 and margin is 2, cleaned ranges will be :
* [0, 8] and [12, videoElement.duration]
* @param {HTMLMediaElement} videoElement
* @param {Object} sourceBufferInterface
* @param {Number} time
* @param {Number|undefined} margin
* @returns {Promise}
*/
export default function removeBufferAroundTime(
videoElement: IMediaElement,
sourceBufferInterface: MainSourceBufferInterface,
time: number,
margin: number | undefined,
): Promise<unknown> {
const removalMargin = margin ?? 10 * 60;
if (videoElement.buffered.length === 0) {
return Promise.resolve();
}
const bufferRemovals = [];
if (time - removalMargin > 0) {
bufferRemovals.push(sourceBufferInterface.remove(0, time - removalMargin));
}
if (time + removalMargin < videoElement.duration) {
bufferRemovals.push(
sourceBufferInterface.remove(time + removalMargin, videoElement.duration),
);
}
return Promise.all(bufferRemovals);
}