public void ReceiveDataACK(DataPackage pkgData)
{
//收到确认数据【采集器→主机】
Struct_OKWord okWord = new Struct_OKWord();
byte status_ctl;
byte recNo;
byte[] dataBuffer = pkgData.PureData;
using (MemoryStream ms = new MemoryStream(dataBuffer))
{
using (BinaryReader br = new BinaryReader(ms))
{
status_ctl = br.ReadByte(); //输出开关量状态
okWord.OkWord = br.ReadByte();
recNo = br.ReadByte(); //要确认的文件记录号，默认为 0。
if (macState == 3) { macState = 4; }
}
}
if ((recNo == curRecNo) && (okWord.FileType == AckFileType.Video))
{
//文件读取结束，通知主程序
if (curStream != null) curStream.Close();
if (curBinaryWriter != null) curBinaryWriter.Close();
if (OnDataChanged != null)
{
//通知文件读取结束
VideoHandlerEventArgs eventArgs = new VideoHandlerEventArgs(RunMode.Video);
eventArgs.RecNo = curRecNo;
eventArgs.fileName = curFileName;
OnDataChanged(this, eventArgs);
}
}
}
public void ReceiveVideoAction(DataPackage pkgData)
{
//收到启动或关闭录像应答【采集器→主机】
byte retCode = 0;
byte[] dataBuffer = pkgData.PureData;
using (MemoryStream ms = new MemoryStream(dataBuffer))
{
using (BinaryReader br = new BinaryReader(ms))
{
retCode = br.ReadByte(); //结果码: 0-录象关闭，1-录象打开
curStatus_ctl = br.ReadByte(); //输出开关量状态
byte videoMode = br.ReadByte(); //录像模式: 利用原有保留字节，缺省为 0，其它取值已废弃。
curRecNo = br.ReadByte(); //图像记录号
curDataLen = br.ReadInt32(); //录象长度: 在关闭时才有效，为 0 表示录象失败
macState = 1;
}
}
if (retCode == 0)
{
//收到录像已关闭命令，发送读取数据命令
OpenState = false;
if (OnDataChanged != null)
{
VideoHandlerEventArgs eventArgs = new VideoHandlerEventArgs(RunMode.Video);
eventArgs.OperState = OperationState.VideoClose;
OnDataChanged(this, eventArgs);
}
if (curDataLen > 0)
{
//读取文件数据， 发送读取数据的命令
curFileName = string.Format("Video_{0}.avi", DateTime.Now.ToString("yyyyMMdd_HHmmss"));
curStream = new FileStream(curFileName, FileMode.Create, FileAccess.Write);
curBinaryWriter = new BinaryWriter(curStream);
SendDataRead(curRecNo, 0);
}
}
else
{
//收到录像已打开命令，主程序录像已打开
OpenState = true;
if (OnDataChanged != null)
{
VideoHandlerEventArgs eventArgs = new VideoHandlerEventArgs(RunMode.Video);
eventArgs.OperState = OperationState.VideoOpen;
OnDataChanged(this, eventArgs);
}
}
}