com.github.xingshuangs.iot.protocol.rtcp.model.RtcpBye 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.rtcp.model;
import com.github.xingshuangs.iot.common.buff.ByteReadBuff;
import com.github.xingshuangs.iot.common.buff.ByteWriteBuff;
import com.github.xingshuangs.iot.protocol.rtcp.enums.ERtcpPackageType;
import lombok.Data;
/**
* bye
* 0 1 2 3
* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* |V=2|P| SC | PT=BYE=203 | length |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | SSRC/CSRC |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* : ... :
* +=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
* | length | reason for leaving ...
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
*
* @author xingshuang
*/
@Data
public final class RtcpBye extends RtcpBasePackage {
/**
* 同步源（SSRC of sender）：32比特，SR包发送者的同步源标识符。与对应RTP包中的SSRC一样。
*/
private long sourceId;
public RtcpBye() {
}
public RtcpBye(long sourceId) {
this.header = new RtcpHeader();
this.header.version = 2;
this.header.padding = false;
this.header.receptionCount = 1;
this.header.packageType = ERtcpPackageType.BYE;
this.header.length = 1;
this.sourceId = sourceId;
}
@Override
public int byteArrayLength() {
return 8;
}
@Override
public byte[] toByteArray() {
return ByteWriteBuff.newInstance(8)
.putBytes(this.header.toByteArray())
.putInteger(this.sourceId)
.getData();
}
/**
* 字节数组数据解析
*
* @param data 字节数组数据
* @return RtcpHeader
*/
public static RtcpBye fromBytes(final byte[] data) {
return fromBytes(data, 0);
}
/**
* 字节数组数据解析
*
* @param data 字节数组数据
* @param offset 偏移量
* @return RtcpHeader
*/
public static RtcpBye fromBytes(final byte[] data, final int offset) {
if (data.length < 8) {
throw new IndexOutOfBoundsException("RtcpBye, data length < 8");
}
RtcpBye res = new RtcpBye();
res.header = RtcpHeader.fromBytes(data, offset);
ByteReadBuff buff = new ByteReadBuff(data, offset + res.header.byteArrayLength());
res.sourceId = buff.getUInt32();
return res;
}
}