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目前它只是一个物联网通信的工具,包含
1、西门子S7通信协议,支持西门子S1500,S1200,S400,S300,S200Smart,西门子机床828D;
2、Modbus通信协议,支持ModbusTcp, ModbusRtuOverTcp, ModbusAsciiOverTcp, ModbusTcpServer;
3、三菱Melsec(MC)通信协议,支持PLC iQ-R系列, Q/L系列, QnA系列, A系列, 目前只测试了L系列和FX5U;
4、RTSP, RTCP, RTP, H264, MP4 (FMP4)协议,RTSP + H264 + FMP4 + WebSocket + MSE + WEB;
5、基础字节数组解析转换工具;
The newest version!
/*
* 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;
import com.github.xingshuangs.iot.utils.TimesUtil;
import java.time.LocalDateTime;
/**
* tkhd(Track Header) box, contains header information about the media stream, such as trackid, video resolution, and more.
* 包含关于媒体流的头信息,如trackid,视频分辨率等信息
*
* @author xingshuang
*/
public class Mp4TkhdBox extends Mp4Box {
/**
* 1-bytes, version
*/
private final int version;
/**
* 3-bytes flags
*/
private final byte[] flags;
/**
* 4-bytes creation time
*/
private final LocalDateTime creationTime;
/**
* 4-bytes modification time
*/
private final LocalDateTime modificationTime;
/**
* 4-bytes timescale
*/
private final int trackId;
/**
* 4个-bytes
*/
private final byte[] reserve1;
/**
* 4-bytes duration
*/
private final int duration;
/**
* 8个-bytes
*/
private final byte[] reserve2;
/**
* 2-bytes the video layer, which is sort before and after, here is all the videos, set it to 0.
* 视频layer,相当于前后排序,这里就一路视频,设置为0
*/
private final int layer;
/**
* 2个-bytes
*/
private final byte[] reserve3;
/**
* 2个-bytes volume setting
* 音量设置
*/
private final int volume;
/**
* 2个-bytes
*/
private final byte[] reserve4;
/**
* 36-bytes transformation matrix
* 变换矩阵
*/
private final byte[] unityMatrix;
/**
* 4-bytes video width
* 视频宽
*/
private final int width;
/**
* 4-bytes video height
* 视频高
*/
private final int height;
public Mp4TkhdBox(Mp4TrackInfo trackInfo) {
this.mp4Type = EMp4Type.TKHD;
this.version = 0;
this.flags = new byte[]{0x00, 0x00, 0x07};
this.creationTime = TimesUtil.getUTCDateTime(0);
this.modificationTime = TimesUtil.getUTCDateTime(0);
this.trackId = trackInfo.getId();
this.reserve1 = new byte[4];
this.duration = trackInfo.getDuration();
this.reserve2 = new byte[8];
this.layer = trackInfo.getType().equals("video") ? 0 : 1;
this.reserve3 = new byte[2];
this.volume = 0;
this.reserve4 = new byte[2];
this.unityMatrix = new byte[]{
0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x01, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x40, 0x00, 0x00, 0x00
};
this.width = trackInfo.getWidth();
this.height = trackInfo.getHeight();
}
@Override
public int byteArrayLength() {
return 92;
}
@Override
public byte[] toByteArray() {
int size = this.byteArrayLength();
return ByteWriteBuff.newInstance(size)
.putInteger(size)
.putBytes(this.mp4Type.getByteArray())
.putByte(this.version)
.putBytes(this.flags)
.putInteger(TimesUtil.getUTCTotalSecond(this.creationTime))
.putInteger(TimesUtil.getUTCTotalSecond(this.modificationTime))
.putInteger(this.trackId)
.putBytes(this.reserve1)
.putInteger(this.duration)
.putBytes(this.reserve2)
.putShort(this.layer)
.putBytes(this.reserve3)
.putShort(this.volume)
.putBytes(this.reserve4)
.putBytes(this.unityMatrix)
.putInteger(this.width << 16)
.putInteger(this.height << 16)
.getData();
}
}
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