private void capture_frontPictureToRam(ref object fileName)
{
if (enablefront)
{
if (capmethod == 0)
{
int lChannel = 1; //通道号 Channel number
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档
uint ipSizeReturned = 0;
byte[] sJpegPicBuffer = new byte[1024 * 1000];
//JPEG抓图 Capture a JPEG picture
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, lChannel, ref lpJpegPara, sJpegPicBuffer, (uint)sJpegPicBuffer.Length, ref ipSizeReturned))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "截取前摄像头照片失败, error code= " + iLastErr;
ini.INIIO.saveLogInf(str);
//textBox1.AppendText(str + "\r\n");
}
else
{
str = "截取前摄像头照片成功";
ini.INIIO.saveLogInf(str);
}
}
}
else
{
str = "截取前摄像头照片失败,前摄像头未使能 ";
ini.INIIO.saveLogInf(str);
}
}
private void btnJPEG_Click(object sender, EventArgs e)
{
int lChannel = iChannelNum[(int)iSelIndex]; //通道号 Channel number
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 0xff-Auto(使用当前码流分辨率)
//抓图分辨率需要设备支持，更多取值请参考SDK文档
//JPEG抓图保存成文件 Capture a JPEG picture
string sJpegPicFileName;
sJpegPicFileName = "filetest.jpg";//图片保存路径和文件名 the path and file name to save
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture(m_lUserID, lChannel, ref lpJpegPara, sJpegPicFileName))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture failed, error code= " + iLastErr;
DebugInfo(str);
return;
}
else
{
str = "NET_DVR_CaptureJPEGPicture succ and the saved file is " + sJpegPicFileName;
DebugInfo(str);
}
//JEPG抓图，数据保存在缓冲区中 Capture a JPEG picture and save in the buffer
uint iBuffSize = 400000; //缓冲区大小需要不小于一张图片数据的大小 The buffer size should not be less than the picture size
byte[] byJpegPicBuffer = new byte[iBuffSize];
uint dwSizeReturned = 0;
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, lChannel, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture_NEW failed, error code= " + iLastErr;
DebugInfo(str);
return;
}
else
{
//将缓冲区里的JPEG图片数据写入文件 save the data into a file
string str = "buffertest.jpg";
FileStream fs = new FileStream(str, FileMode.Create);
int iLen = (int)dwSizeReturned;
fs.Write(byJpegPicBuffer, 0, iLen);
fs.Close();
//将图片显示到picturebox dingyh
picCapture.Image = Util.ByteToImage(byJpegPicBuffer);
str = "NET_DVR_CaptureJPEGPicture_NEW succ and save the data in buffer to 'buffertest.jpg'.";
DebugInfo(str);
}
return;
}
private void btnJPEG_Click(object sender, EventArgs e)
{
int lChannel = iChannelNum[(int)iSelIndex];
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0;
lpJpegPara.wPicSize = 0xff;
string sJpegPicFileName;
sJpegPicFileName = "filetest.jpg";
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture(m_lUserID, lChannel, ref lpJpegPara, sJpegPicFileName))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture failed, error code= " + iLastErr;
DebugInfo(str);
return;
}
else
{
str = "NET_DVR_CaptureJPEGPicture succ and the saved file is " + sJpegPicFileName;
DebugInfo(str);
}
uint iBuffSize = 400000;
byte[] byJpegPicBuffer = new byte[iBuffSize];
uint dwSizeReturned = 0;
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, lChannel, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture_NEW failed, error code= " + iLastErr;
DebugInfo(str);
return;
}
else
{
string str = "buffertest.jpg";
FileStream fs = new FileStream(str, FileMode.Create);
int iLen = (int)dwSizeReturned;
fs.Write(byJpegPicBuffer, 0, iLen);
fs.Close();
str = "NET_DVR_CaptureJPEGPicture_NEW succ and save the data in buffer to 'buffertest.jpg'.";
DebugInfo(str);
}
return;
}
private void CaptureJpeg()
{
int lChannel = Int32.Parse(dvrControl.dvrObject.Channel);
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = captureController.captureSettingModel.PictureQuality;
lpJpegPara.wPicSize = captureController.captureSettingModel.PictureSize;
//Capture a JPEG picture
string sJpegPicFileName;
sJpegPicFileName = "reza.jpeg";
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture(m_lUserID, lChannel, ref lpJpegPara, sJpegPicFileName))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture failed, error code= " + iLastErr;
//DebugInfo(str);
MessageControl messageControl = new MessageControl("Capture error", str);
messageControl.ShowDialog();
return;
}
else
{
str = "NET_DVR_CaptureJPEGPicture succ and the saved file is " + sJpegPicFileName;
//DebugInfo(str);
}
byJpegPicBuffer = new byte[iBuffSize];
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, lChannel, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned))
{
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "NET_DVR_CaptureJPEGPicture_NEW failed, error code= " + iLastErr;
//DebugInfo(str);
MessageControl messageControl = new MessageControl("Capture error", str);
messageControl.ShowDialog();
return;
}
else
{
str = "NET_DVR_CaptureJPEGPicture_NEW succ and save the data in buffer to 'buffertest.jpg'.";
}
return;
}
public bool startFrontCaptureThreadToRam(ref byte[] buffer)
{
if (enablefront)
{
if (capmethod == 0)
{
int lChannel = 1; //通道号 Channel number
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档
uint ipSizeReturned = 0;
byte[] sJpegPicBuffer = new byte[1024 * 1000];
//JPEG抓图 Capture a JPEG picture
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, lChannel, ref lpJpegPara, sJpegPicBuffer, (uint)sJpegPicBuffer.Length, ref ipSizeReturned))
{
buffer = null;
iLastErr = CHCNetSDK.NET_DVR_GetLastError();
str = "截取前摄像头照片失败, error code= " + iLastErr;
ini.INIIO.saveLogInf(str);
return(false);
//textBox1.AppendText(str + "\r\n");
}
else
{
buffer = new byte[ipSizeReturned];
Array.Copy(sJpegPicBuffer, buffer, ipSizeReturned);
str = "截取前摄像头照片成功";
ini.INIIO.saveLogInf(str);
return(true);
}
}
else
{
buffer = null;
return(false);
}
}
else
{
buffer = null;
return(false);
}
}
public OResult <Byte[]> CapturePicture()
{
if (_userId < 0)
{
return(new OResult <Byte[]>(null, "用户未登录"));
}
try
{
//图片保存路径和文件名
//var picFileName = $"User_{_userId}_{DateTimeHelper.GetTimestamp()}.jpg";
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档
//var captureSucc = CHCNetSDK.NET_DVR_CaptureJPEGPicture(_userId, _loginRequest.ChannelNo, ref lpJpegPara, picFileName);
//if (!captureSucc)
//{
// return new OResult<Byte[]>(null, $"抓图失败：{GetLastErrorCode()}");
//}
UInt32 iBuffSize = 10 * 1024 * 1024; //缓冲区大小需要不小于一张图片数据的大小 The buffer size should not be less than the picture size
Byte[] byJpegPicBuffer = new Byte[iBuffSize];
UInt32 dwSizeReturned = 0;
var captureSucc = CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(_userId, _loginRequest.ChannelNo, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned);
if (!captureSucc)
{
return(new OResult <Byte[]>(null, HkvsErrorCode.GetLastErrorCode(), $"抓图失败：{HkvsErrorCode.GetLastErrorMessage()}"));
}
var data = new Byte[dwSizeReturned];
Buffer.BlockCopy(byJpegPicBuffer, 0, data, 0, data.Length);
return(new OResult <Byte[]>(data));
}
catch (Exception ex)
{
return(new OResult <Byte[]>(null, ex));
}
}
/// <summary>
/// 获取摄像头截图
/// </summary>
/// <returns></returns>
public byte[] CapturePic()
{
byte[] byteImage = null;
if (IsOpen)
{
CHCNetSDK.NET_DVR_JPEGPARA lpJpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
lpJpegPara.wPicQuality = 0; //图像质量 Image quality
lpJpegPara.wPicSize = 0xff; //抓图分辨率 Picture size: 2- 4CIF，0xff- Auto(使用当前码流分辨率)，抓图分辨率需要设备支持，更多取值请参考SDK文档
//JEPG抓图，数据保存在缓冲区中 Capture a JPEG picture and save in the buffer
uint iBuffSize = 2000000; //缓冲区大小需要不小于一张图片数据的大小 The buffer size should not be less than the picture size
byte[] byJpegPicBuffer = new byte[iBuffSize];
uint dwSizeReturned = 0;
if (!CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(user, _Channel, ref lpJpegPara, byJpegPicBuffer, iBuffSize, ref dwSizeReturned))
{
uint iLastErr = CHCNetSDK.NET_DVR_GetLastError();
string str = "摄像头调用失败，无法获取影像图片, error code= " + iLastErr;
throw new Exception(str);
//DebugInfo(str);
return(null);
}
else
{
byteImage = new byte[dwSizeReturned];
for (int i = 0, j = (int)dwSizeReturned; i < j; i++)
{
byteImage[i] = byJpegPicBuffer[i];
}
//将缓冲区里的JPEG图片数据写入文件 save the data into a file
//string str = Application.StartupPath +@"\"+ name + ".jpg";
//FileStream fs = new FileStream(str, FileMode.Create);
//int iLen = (int)dwSizeReturned;
//fs.Write(byJpegPicBuffer, 0, iLen);
//fs.Close();
//str = "NET_DVR_CaptureJPEGPicture_NEW succ and save the data in buffer to 'buffertest.jpg'.";
//DebugInfo(str);
}
}
return(byteImage);
}
public override byte[] GetImageByte(string nvrip, string ipcip)
{
NVRInfo nvr = NVRInfos.FirstOrDefault(o => o.Host.DVRIPAddress == nvrip);
if (nvr == null)
{
ErrorMsg = "NVR不存在";
_log.Error(ErrorMsg);
}
int userId = nvr.Host.LUserId;
IPC ipc = nvr.IPCs.FirstOrDefault(o => o.ChannelIp == ipcip);
if (ipc == null)
{
ErrorMsg = "IPC不存在";
_log.Error(ErrorMsg);
}
int channel = ipc.ChannelIndex;
CHCNetSDK.NET_DVR_JPEGPARA jpg = new CHCNetSDK.NET_DVR_JPEGPARA()
{
wPicQuality = 0, wPicSize = 2
};
byte[] buffer = new byte[1024 * 1000];
uint dwPicSize = 1024 * 1000;
uint size = 0;
bool re = CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(userId, channel, ref jpg, buffer, dwPicSize, ref size);
if (!re)
{
ErrorMsg = "获取失败" + CHCNetSDK.NET_DVR_GetLastError();
}
byte[] by = buffer.ToArray().Take((int)size).ToArray();
return(by);
}
public Boolean threadRunning = true; //标识线程是否运行
//下面均对当前设备的第一个有效通道进行移动监测
private void threadCapture() // 判断线程
{
//定义JPEG图像质量
CHCNetSDK.NET_DVR_JPEGPARA JpegPara = new CHCNetSDK.NET_DVR_JPEGPARA();
JpegPara.wPicQuality = 1;
JpegPara.wPicSize = 9;
byte[] Jpeg = new byte[200 * 1024];
uint len = 200 * 1024;// 200 * 1024;
uint Ret = 0;
bool capture;
Image <Bgr, Byte> tempimage; // 缓存图片
Image <Gray, Byte> grayimage, diffimage; //灰度缓存图片
MemoryStream ms; // 内存流
uint counts, threadcounts = 8000; //异常点数目 和 阈值
while (true)
{
if (m_lUserID < 0 || !threadRunning || !motiondetectonoff) // 不运行
{
Thread.Sleep(1000);
continue;
}
capture = CHCNetSDK.NET_DVR_CaptureJPEGPicture_NEW(m_lUserID, iChannelNum[0], ref JpegPara, Jpeg, len, ref Ret);
if (!capture)
{
this.Invoke((EventHandler)(delegate
{
toolStripStatusLabel6.Text = "捕捉帧失败，错误代码" + CHCNetSDK.NET_DVR_GetLastError().ToString();
}));
return;
}
ms = new MemoryStream(Jpeg); //读取内存
tempimage = new Image <Bgr, byte>((Bitmap)System.Drawing.Image.FromStream(ms)); //构造图片
grayimage = tempimage.Convert <Gray, Byte>();
if (status == 0)
{ // 获得背景
this.Invoke((EventHandler)(delegate
{
toolStripStatusLabel6.Text = "正常预览中...";
}));
bgimage = grayimage;
status++; // 下一帧
}
else
{
switch (status)
{
case 1: // 处理第一帧
diffimage = bgimage.AbsDiff(grayimage);
diffimage = diffimage.ThresholdBinary(new Gray(128), new Gray(255));
counts = countWhite(diffimage); // 计算当前帧与背景帧的异常点个数
if (counts > threadcounts)
{ // 异常点个数大于1万 保存为第一帧
image1 = grayimage;
status++;
}
break;
case 2: // 处理第二帧
diffimage = bgimage.AbsDiff(grayimage);
diffimage = diffimage.ThresholdBinary(new Gray(128), new Gray(255));
counts = countWhite(diffimage); // 计算当前帧与背景帧的异常点个数
if (counts > threadcounts)
{ // 异常点个数大于1万 保存为第2帧
image2 = grayimage;
diffimage = image1.AbsDiff(image2); // 计算第一帧第二帧是否连续
diffimage = diffimage.ThresholdBinary(new Gray(128), new Gray(255));
counts = countWhite(diffimage);
if (counts > threadcounts)
{ // 不连续 直接报警就行了
// 报警
status = 0;
this.Invoke((EventHandler)(delegate // 跨线程访问
{
toolStripStatusLabel6.Text = "检测到移动物体";
startRecord(); // 开始录像
}));
}
else // 连续的话 就直接采集第三帧了
{
status++;
}
}
break;
case 3:
diffimage = bgimage.AbsDiff(grayimage);
diffimage = diffimage.ThresholdBinary(new Gray(128), new Gray(255));
counts = countWhite(diffimage); // 计算当前帧与背景帧的异常点个数
if (counts < threadcounts)
{ //第三帧 小于10000 那么就报警吧
// 报警
status = 0;
this.Invoke((EventHandler)(delegate
{
toolStripStatusLabel6.Text = "检测到移动物体";
startRecord(); // 开始录像
}));
}
else //判断第三帧和第二帧是否连续
{
image3 = grayimage;
diffimage = image3.AbsDiff(image2); // 计算第3帧第二帧是否连续
diffimage = diffimage.ThresholdBinary(new Gray(128), new Gray(255));
counts = countWhite(diffimage);
if (counts > 10000)
{ // 不连续 直接报警就行了
// 报警
status = 0;
this.Invoke((EventHandler)(delegate
{
toolStripStatusLabel6.Text = "检测到移动物体";
startRecord(); // 开始录像
}));
}
// 连续的话 就直接采集第三帧了
status = 0;
}
break;
default:
status = 0; // 采集背景
break;
}
/*this.Invoke((EventHandler)(delegate
* {
* toolStripStatusLabel7.Text ="报警";
* diffimage = diffimage.Resize(box[1].Width, box[1].Height, 0);
* box[1].Image = diffimage.ToBitmap();
* }));*/
}
Thread.Sleep(10);
}
}