com.github.xingshuangs.iot.protocol.mp4.model.Mp4TrakBox Maven / Gradle / Ivy
/*
* MIT License
*
* Copyright (c) 2021-2099 Oscura (xingshuang)
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
package com.github.xingshuangs.iot.protocol.mp4.model;
import com.github.xingshuangs.iot.common.buff.ByteWriteBuff;
import com.github.xingshuangs.iot.protocol.mp4.enums.EMp4Type;
/**
* moov中可以存在一个或多个 track，通常包含两个trak box，一个视频索引，一个音频索引，它们之间是相互独立的。
* 每个 track 包含tkhd和mdia子box，trak为顶层box无具体含义，其Data为其子box
*
* @author xingshuang
*/
public class Mp4TrakBox extends Mp4Box {
private final Mp4TkhdBox tkhdBox;
private final Mp4MdiaBox mdiaBox;
public Mp4TrakBox(Mp4TrackInfo trackInfo) {
this.mp4Type = EMp4Type.TRAK;
this.tkhdBox = new Mp4TkhdBox(trackInfo);
this.mdiaBox = new Mp4MdiaBox(trackInfo);
}
@Override
public int byteArrayLength() {
return 8 + this.tkhdBox.byteArrayLength() + this.mdiaBox.byteArrayLength();
}
@Override
public byte[] toByteArray() {
int size = this.byteArrayLength();
return ByteWriteBuff.newInstance(size)
.putInteger(size)
.putBytes(this.mp4Type.getByteArray())
.putBytes(this.tkhdBox.toByteArray())
.putBytes(this.mdiaBox.toByteArray())
.getData();
}
}