项目场景

Baumer工业相机堡盟相机是一种高性能、高质量的工业相机，可用于各种应用场景，如物体检测、计数和识别、运动分析和图像处理。

Baumer的万兆网相机拥有出色的图像处理性能，可以实时传输高分辨率图像。此外，该相机还具有快速数据传输、低功耗、易于集成以及高度可扩展性等特点。

Baumer万兆网相机中LXT.JP图像压缩系列相机是一种预处理相机，在相机内部对图像进行JPEG算法压缩然后再传输到处理器中。

技术背景

Baumer工业相机的JPEG图像压缩功能有助于减少图像文件的大小，同时保持图像质量，同时它是一种有损压缩。这种压缩功能是基于JPEG（联合摄影专家组）压缩标准，该标准被广泛用于数字摄影和图像编辑。

具有JPEG压缩功能的工业相机可以捕捉高分辨率的图像，并将其压缩成较小的文件，从而使图像的存储、传输和处理更加容易。压缩水平和质量可以根据用户的具体需求进行调整。

在工业相机中使用JPEG压缩的一个优点是，它可以帮助减少数据传输时间，这在需要高速图像处理的机器视觉应用中特别重要。此外，较小的文件大小允许更有效地存储和检索图像，这在工业环境中可以节省时间和金钱。

总的来说，JPEG图像压缩功能是工业相机的一个重要功能，有助于提高高分辨率图像的效率、存储和处理。

代码分析

/*This example describes the the handling of Baumer JPEG cameras.The given source code applies to handling one system, one camera and ten images.Please see "Baumer-GAPI SDK Programmer's Guide" chapter 5.1 and chapter 5.2
*/// ###############################
// Baumer JPEG Capture Example
// -------------------------------
// - the following description includes these tags: JPEGTAGxx, which are makers for the relevant code snippets
// -------------------------------
// - the example shows the work flow for Baumer JPEG cameras --> JPEGTAG01
// - How does the camera work?
//  o the camera is capable to stream compressed image when setting 'ImageCompressionMode' to 'JPEG'
//  o JPEG compression is only possible for Mono8 and YCbCr pixel formats
//  o the size of the image buffer is set to the uncompressed payload size of the full frame image
//    (same like a camera without image compression support), because the size of compressed image data
//    are always smaller
// - How to implement?
//  o set the feature 'PixelFormat' of the camera to 'Mono8' or 'YCbCr' --> JPEGTAG02
//  o set the feature 'ImageCompressionMode' to the value 'JPEG' to switch on image compression --> JPEGTAG03
//  o this example use internal allocated image buffers that use the maximum payload size of the camera --> JPEGTAG04
//  o use function Buffer::GetImageLength to directly save the buffer
//    as JPEG into the current working directory --> JPEGTAG05
//  o restore JPEG setting --> JPEGTAG06
// ###############################using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;namespace _022_JPEGCapture
{class Program{const string kImageCompressionMode = "ImageCompressionMode";const string kImageCompressionModeJPEG = "JPEG";static int Main(string[] args){//DECLARATIONS OF VARIABLESBGAPI2.SystemList systemList = null;BGAPI2.System mSystem = null;string sSystemID = "";BGAPI2.InterfaceList interfaceList = null;BGAPI2.Interface mInterface = null;string sInterfaceID = "";BGAPI2.DeviceList deviceList = null;BGAPI2.Device mDevice = null;string sDeviceID = "";BGAPI2.DataStreamList datastreamList = null;BGAPI2.DataStream mDataStream = null;string sDataStreamID = "";BGAPI2.BufferList bufferList = null;BGAPI2.Buffer mBuffer = null;int returnCode = 0;bool jpeg_streaming_capable = false;bool unsafe_code_allowed = true;System.Console.Write("\r\n");System.Console.Write("#################################################\r\n");System.Console.Write("# PROGRAMMER'S GUIDE Example 022_JPEGCapture.cs #\r\n");System.Console.Write("#################################################\r\n");System.Console.Write("\r\n\r\n");System.Console.Write("SYSTEM LIST\r\n");System.Console.Write("###########\r\n\r\n");//COUNTING AVAILABLE SYSTEMS (TL producers)try{systemList = BGAPI2.SystemList.Instance;systemList.Refresh();System.Console.Write("5.1.2   Detected systems:  {0}\r\n", systemList.Count);//SYSTEM DEVICE INFORMATIONforeach (KeyValuePair sys_pair in BGAPI2.SystemList.Instance){System.Console.Write("  5.2.1   System Name:     {0}\r\n", sys_pair.Value.FileName);System.Console.Write("          System Type:     {0}\r\n", sys_pair.Value.TLType);System.Console.Write("          System Version:  {0}\r\n", sys_pair.Value.Version);System.Console.Write("          System PathName: {0}\r\n\r\n", sys_pair.Value.PathName);}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}//OPEN THE FIRST SYSTEM IN THE LIST WITH A CAMERA CONNECTEDtry{foreach (KeyValuePair sys_pair in BGAPI2.SystemList.Instance){System.Console.Write("SYSTEM\r\n");System.Console.Write("######\r\n\r\n");try{sys_pair.Value.Open();System.Console.Write("5.1.3   Open next system \r\n");System.Console.Write("  5.2.1   System Name:     {0}\r\n", sys_pair.Value.FileName);System.Console.Write("          System Type:     {0}\r\n", sys_pair.Value.TLType);System.Console.Write("          System Version:  {0}\r\n", sys_pair.Value.Version);System.Console.Write("          System PathName: {0}\r\n\r\n", sys_pair.Value.PathName);sSystemID = sys_pair.Key;System.Console.Write("        Opened system - NodeList Information \r\n");System.Console.Write("          GenTL Version:   {0}.{1}\r\n\r\n", (long)sys_pair.Value.NodeList["GenTLVersionMajor"].Value, (long)sys_pair.Value.NodeList["GenTLVersionMinor"].Value);System.Console.Write("INTERFACE LIST\r\n");System.Console.Write("##############\r\n\r\n");try{interfaceList = sys_pair.Value.Interfaces;//COUNT AVAILABLE INTERFACESinterfaceList.Refresh(100); // timeout of 100 msecSystem.Console.Write("5.1.4   Detected interfaces: {0}\r\n", interfaceList.Count);//INTERFACE INFORMATIONforeach (KeyValuePair ifc_pair in interfaceList){System.Console.Write("  5.2.2   Interface ID:      {0}\r\n", ifc_pair.Value.Id);System.Console.Write("          Interface Type:    {0}\r\n", ifc_pair.Value.TLType);System.Console.Write("          Interface Name:    {0}\r\n\r\n", ifc_pair.Value.DisplayName);}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("INTERFACE\r\n");System.Console.Write("#########\r\n\r\n");//OPEN THE NEXT INTERFACE IN THE LISTtry{foreach (KeyValuePair ifc_pair in interfaceList){try{System.Console.Write("5.1.5   Open interface \r\n");System.Console.Write("  5.2.2   Interface ID:      {0}\r\n", ifc_pair.Key);System.Console.Write("          Interface Type:    {0}\r\n", ifc_pair.Value.TLType);System.Console.Write("          Interface Name:    {0}\r\n", ifc_pair.Value.DisplayName);ifc_pair.Value.Open();//search for any camera is connected to this interfacedeviceList = ifc_pair.Value.Devices;deviceList.Refresh(100);if (deviceList.Count == 0){System.Console.Write("5.1.13   Close interface ({0} cameras found) \r\n\r\n", deviceList.Count);ifc_pair.Value.Close();}else{sInterfaceID = ifc_pair.Key;System.Console.Write("  \r\n");System.Console.Write("        Opened interface - NodeList Information \r\n");if (ifc_pair.Value.TLType == "GEV"){long iIPAddress = (long)ifc_pair.Value.NodeList["GevInterfaceSubnetIPAddress"].Value;System.Console.Write("          GevInterfaceSubnetIPAddress: {0}.{1}.{2}.{3}\r\n", (iIPAddress & 0xff000000) >> 24,(iIPAddress & 0x00ff0000) >> 16,(iIPAddress & 0x0000ff00) >> 8,(iIPAddress & 0x000000ff));long iSubnetMask = (long)ifc_pair.Value.NodeList["GevInterfaceSubnetMask"].Value;System.Console.Write("          GevInterfaceSubnetMask:      {0}.{1}.{2}.{3}\r\n", (iSubnetMask & 0xff000000) >> 24,(iSubnetMask & 0x00ff0000) >> 16,(iSubnetMask & 0x0000ff00) >> 8,(iSubnetMask & 0x000000ff));}System.Console.Write("  \r\n");break;}}catch (BGAPI2.Exceptions.ResourceInUseException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write(" Interface {0} already opened \r\n", ifc_pair.Key);System.Console.Write(" ResourceInUseException {0} \r\n", ex.GetErrorDescription());}}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}//if a camera is connected to the system interface then leave the system loopif (sInterfaceID != ""){break;}}catch (BGAPI2.Exceptions.ResourceInUseException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write(" System {0} already opened \r\n", sys_pair.Key);System.Console.Write(" ResourceInUseException {0} \r\n", ex.GetErrorDescription());}}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}if (sSystemID == ""){System.Console.Write(" No System found \r\n");System.Console.Write(" Input any number to close the program:\r\n");Console.Read();return returnCode;}else{mSystem = systemList[sSystemID];}if (sInterfaceID == ""){System.Console.Write(" No Interface of TLType 'GEV' found \r\n");System.Console.Write("\r\nEnd\r\nInput any number to close the program:\r\n");Console.Read();mSystem.Close();return returnCode;}else{mInterface = interfaceList[sInterfaceID];}System.Console.Write("DEVICE LIST\r\n");System.Console.Write("###########\r\n\r\n");try{//COUNTING AVAILABLE CAMERASdeviceList = mInterface.Devices;deviceList.Refresh(100);System.Console.Write("5.1.6   Detected devices:         {0}\r\n", deviceList.Count);//DEVICE INFORMATION BEFORE OPENINGforeach (KeyValuePair dev_pair in deviceList){System.Console.Write("  5.2.3   Device DeviceID:        {0}\r\n", dev_pair.Key);System.Console.Write("          Device Model:           {0}\r\n", dev_pair.Value.Model);System.Console.Write("          Device SerialNumber:    {0}\r\n", dev_pair.Value.SerialNumber);System.Console.Write("          Device Vendor:          {0}\r\n", dev_pair.Value.Vendor);System.Console.Write("          Device TLType:          {0}\r\n", dev_pair.Value.TLType);System.Console.Write("          Device AccessStatus:    {0}\r\n", dev_pair.Value.AccessStatus);System.Console.Write("          Device UserID:          {0}\r\n\r\n", dev_pair.Value.DisplayName);}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("DEVICE\r\n");System.Console.Write("######\r\n\r\n");//OPEN THE FIRST CAMERA IN THE LISTtry{foreach (KeyValuePair dev_pair in deviceList){try{System.Console.Write("5.1.7   Open first device \r\n");System.Console.Write("          Device DeviceID:        {0}\r\n", dev_pair.Value.Id);System.Console.Write("          Device Model:           {0}\r\n", dev_pair.Value.Model);System.Console.Write("          Device SerialNumber:    {0}\r\n", dev_pair.Value.SerialNumber);System.Console.Write("          Device Vendor:          {0}\r\n", dev_pair.Value.Vendor);System.Console.Write("          Device TLType:          {0}\r\n", dev_pair.Value.TLType);System.Console.Write("          Device AccessStatus:    {0}\r\n", dev_pair.Value.AccessStatus);System.Console.Write("          Device UserID:          {0}\r\n\r\n", dev_pair.Value.DisplayName);dev_pair.Value.Open();sDeviceID = dev_pair.Key;System.Console.Write("        Opened device - RemoteNodeList Information \r\n");System.Console.Write("          Device AccessStatus:    {0}\r\n", dev_pair.Value.AccessStatus);//SERIAL NUMBERif (dev_pair.Value.RemoteNodeList.GetNodePresent("DeviceSerialNumber") == true)System.Console.Write("          DeviceSerialNumber:     {0}\r\n", (string)dev_pair.Value.RemoteNodeList["DeviceSerialNumber"].Value);else if (dev_pair.Value.RemoteNodeList.GetNodePresent("DeviceID") == true)System.Console.Write("          DeviceID (SN):          {0}\r\n", (string)dev_pair.Value.RemoteNodeList["DeviceID"].Value);elseSystem.Console.Write("          SerialNumber:           Not Available.\r\n");//DISPLAY DEVICEMANUFACTURERINFOif (dev_pair.Value.RemoteNodeList.GetNodePresent("DeviceManufacturerInfo") == true)System.Console.Write("          DeviceManufacturerInfo: {0}\r\n", (string)dev_pair.Value.RemoteNodeList["DeviceManufacturerInfo"].Value);//DISPLAY DEVICEFIRMWAREVERSION OR DEVICEVERSIONif (dev_pair.Value.RemoteNodeList.GetNodePresent("DeviceFirmwareVersion") == true)System.Console.Write("          DeviceFirmwareVersion:  {0}\r\n", (string)dev_pair.Value.RemoteNodeList["DeviceFirmwareVersion"].Value);else if (dev_pair.Value.RemoteNodeList.GetNodePresent("DeviceVersion") == true)System.Console.Write("          DeviceVersion:          {0}\r\n", (string)dev_pair.Value.RemoteNodeList["DeviceVersion"].Value);elseSystem.Console.Write("          DeviceVersion:          Not Available.\r\n");if (dev_pair.Value.TLType == "GEV"){System.Console.Write("          GevCCP:                 {0}\r\n", (string)dev_pair.Value.RemoteNodeList["GevCCP"].Value);System.Console.Write("          GevCurrentIPAddress:    {0}.{1}.{2}.{3}\r\n", ((long)dev_pair.Value.RemoteNodeList["GevCurrentIPAddress"].Value & 0xff000000) >> 24, ((long)dev_pair.Value.RemoteNodeList["GevCurrentIPAddress"].Value & 0x00ff0000) >> 16, ((long)dev_pair.Value.RemoteNodeList["GevCurrentIPAddress"].Value & 0x0000ff00) >> 8, ((long)dev_pair.Value.RemoteNodeList["GevCurrentIPAddress"].Value & 0x000000ff));System.Console.Write("          GevCurrentSubnetMask:   {0}.{1}.{2}.{3}\r\n", ((long)dev_pair.Value.RemoteNodeList["GevCurrentSubnetMask"].Value & 0xff000000) >> 24, ((long)dev_pair.Value.RemoteNodeList["GevCurrentSubnetMask"].Value & 0x00ff0000) >> 16, ((long)dev_pair.Value.RemoteNodeList["GevCurrentSubnetMask"].Value & 0x0000ff00) >> 8, ((long)dev_pair.Value.RemoteNodeList["GevCurrentSubnetMask"].Value & 0x000000ff));}System.Console.Write("          \r\n");break;}catch (BGAPI2.Exceptions.ResourceInUseException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write(" Device {0} already opened \r\n", dev_pair.Key);System.Console.Write(" ResourceInUseException {0} \r\n", ex.GetErrorDescription());}catch (BGAPI2.Exceptions.AccessDeniedException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write(" Device {0} already opened \r\n", dev_pair.Key);System.Console.Write(" AccessDeniedException {0} \r\n", ex.GetErrorDescription());}}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}if (sDeviceID == ""){System.Console.Write(" No Device found \r\n");System.Console.Write("\r\nEnd\r\nInput any number to close the program:\r\n");Console.Read();mInterface.Close();mSystem.Close();return returnCode;}else{mDevice = deviceList[sDeviceID];}System.Console.Write("DEVICE PARAMETER SETUP\r\n");System.Console.Write("######################\r\n\r\n");try{//SET TRIGGER MODE OFF (FreeRun)mDevice.RemoteNodeList["TriggerMode"].Value = "Off";System.Console.Write("         TriggerMode:             {0}\r\n", (string)mDevice.RemoteNodeList["TriggerMode"].Value);System.Console.Write("  \r\n");// JPEGTAG01 (see description on top)// check for JPEG capable cameraif (mDevice.RemoteNodeList.GetNodePresent(kImageCompressionMode)){BGAPI2.NodeMap image_compression_map = mDevice.RemoteNodeList[kImageCompressionMode].EnumNodeList;if (image_compression_map.GetNodePresent(kImageCompressionModeJPEG)){jpeg_streaming_capable = true;System.Console.Write("         JPEG Supported:          Yes\r\n");}else{System.Console.Write("         JPEG Supported:          No, Feature '{0}' has no element {1}\r\n",kImageCompressionMode, kImageCompressionModeJPEG);}}else{System.Console.Write("         JPEG Supported:          Feature '{0}' not found.\r\n", kImageCompressionMode);}if (jpeg_streaming_capable) {// JPEGTAG02 (see description on top)// AND SET PIXELFORMAT (Mono8, YCbCr) IF AVAILABLEBGAPI2.NodeMap pixel_format_enum_map = mDevice.RemoteNodeList["PixelFormat"].EnumNodeList;string pixel_format = "YCbCr422_8";if (!pixel_format_enum_map.GetNodePresent(pixel_format) ||(pixel_format_enum_map.GetNodePresent(pixel_format) && !pixel_format_enum_map[pixel_format].IsReadable)) {pixel_format = "Mono8";if (!pixel_format_enum_map.GetNodePresent(pixel_format) ||(pixel_format_enum_map.GetNodePresent(pixel_format) && !pixel_format_enum_map[pixel_format].IsReadable)) {pixel_format = "";}}if ((pixel_format != "") && mDevice.RemoteNodeList["PixelFormat"].IsWriteable) {mDevice.RemoteNodeList["PixelFormat"].Value = pixel_format;System.Console.Write("         PixelFormat:             {0}\r\n",mDevice.RemoteNodeList["PixelFormat"].Value);// JPEGTAG03 (see description on top)// set the compression mode to JPEGmDevice.RemoteNodeList[kImageCompressionMode].Value = "JPEG";} else {System.Console.Write("         PixelFormat:             {0} (set to Mono8/YCbCr failed, not supported or no write accees)\r\n",mDevice.RemoteNodeList["PixelFormat"].Value);}}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("DATA STREAM LIST\r\n");System.Console.Write("################\r\n\r\n");try{//COUNTING AVAILABLE DATASTREAMSdatastreamList = mDevice.DataStreams;datastreamList.Refresh();System.Console.Write("5.1.8   Detected datastreams:     {0}\r\n", datastreamList.Count);//DATASTREAM INFORMATION BEFORE OPENINGforeach (KeyValuePair dst_pair in datastreamList){System.Console.Write("  5.2.4   DataStream ID:          {0}\r\n\r\n", dst_pair.Key);}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("DATA STREAM\r\n");System.Console.Write("###########\r\n\r\n");//OPEN THE FIRST DATASTREAM IN THE LISTtry{foreach (KeyValuePair dst_pair in datastreamList){System.Console.Write("5.1.9   Open first datastream\r\n");System.Console.Write("          DataStream ID:          {0}\r\n\r\n", dst_pair.Key);dst_pair.Value.Open();sDataStreamID = dst_pair.Key;System.Console.Write("        Opened datastream - NodeList Information \r\n");System.Console.Write("          StreamAnnounceBufferMinimum:  {0}\r\n", dst_pair.Value.NodeList["StreamAnnounceBufferMinimum"].Value);if (dst_pair.Value.TLType == "GEV"){System.Console.Write("          StreamDriverModel:            {0}\r\n", dst_pair.Value.NodeList["StreamDriverModel"].Value);}System.Console.Write("  \r\n");break;}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}if (sDataStreamID == ""){System.Console.Write(" No DataStream found \r\n");System.Console.Write("\r\nEnd\r\nInput any number to close the program:\r\n");Console.Read();mDevice.Close();mInterface.Close();mSystem.Close();return returnCode;}else{mDataStream = datastreamList[sDataStreamID];}System.Console.Write("BUFFER LIST\r\n");System.Console.Write("###########\r\n\r\n");try{//BufferListbufferList = mDataStream.BufferList;// 4 buffers using internal buffer modefor (int i = 0; i < 4; i++){// JPEGTAG04 (see description on top)// create image buffers with the maximum payload sizemBuffer = new BGAPI2.Buffer();bufferList.Add(mBuffer);}System.Console.Write("5.1.10   Announced buffers:       {0} using {1} [bytes]\r\n", bufferList.AnnouncedCount, mBuffer.MemSize * bufferList.AnnouncedCount);}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}try{foreach (KeyValuePair buf_pair in bufferList){buf_pair.Value.QueueBuffer();}System.Console.Write("5.1.11   Queued buffers:          {0}\r\n", bufferList.QueuedCount);}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("\r\n");System.Console.Write("CAMERA START\r\n");System.Console.Write("############\r\n\r\n");//START DATASTREAM ACQUISITIONtry{mDataStream.StartAcquisition();System.Console.Write("5.1.12   DataStream started \r\n");}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}//START CAMERAtry{mDevice.RemoteNodeList["AcquisitionStart"].Execute();System.Console.Write("5.1.12   {0} started \r\n", mDevice.Model);}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}//CAPTURE 12 IMAGESSystem.Console.Write("\r\n");System.Console.Write("CAPTURE 12 IMAGES BY IMAGE POLLING\r\n");System.Console.Write("##################################\r\n\r\n");BGAPI2.Buffer mBufferFilled = null;try{for (int i = 0; i < 12; i++){mBufferFilled = mDataStream.GetFilledBuffer(1000); // image polling timeout 1000 msecif (mBufferFilled == null){System.Console.Write("Error: Buffer Timeout after 1000 msec\r\n");}else if (mBufferFilled.IsIncomplete == true){System.Console.Write("Error: Image is incomplete\r\n");// queue buffer againmBufferFilled.QueueBuffer();}else{System.Console.Write(" Image {0, 5:d} received in memory address {1:X16}\r\n",mBufferFilled.FrameID, (ulong)mBufferFilled.MemPtr);// JPEGTAG05 (see description on top)// save the compressed images to disk if supportedif (jpeg_streaming_capable){ulong jpeg_size = mBufferFilled.ImageLength;if (jpeg_size > 0){// Save jpeg data to fileSystem.IO.FileStream outfile = new System.IO.FileStream(String.Format("022_JPEGCapture_{0:D6}.jpg", mBufferFilled.FrameID),System.IO.FileMode.Create, System.IO.FileAccess.Write);if (unsafe_code_allowed){// Use UnmanagedMemoryStream to avoid copy form unmanaged to managed System.IO.UnmanagedMemoryStream unmanaged_stream;unsafe{unmanaged_stream = new System.IO.UnmanagedMemoryStream((byte*)mBufferFilled.MemPtr.ToPointer() + mBufferFilled.ImageOffset,(long)jpeg_size);}unmanaged_stream.CopyTo(outfile);unmanaged_stream.Close();}else{byte[] jpeg_data = new byte[jpeg_size];Marshal.Copy(mBufferFilled.MemPtr, jpeg_data, (int)mBufferFilled.ImageOffset, (int)jpeg_data.Length);outfile.Write(jpeg_data, 0, jpeg_data.Length);}outfile.Close();System.Console.Write("JPEG Data found. Image saved as JPEG file.\r\n");}else{System.Console.Write("JPEG Data not found in image buffer. No JPEG Saved.\r\n");}}// queue buffer againmBufferFilled.QueueBuffer();}}}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("\r\n");System.Console.Write("CAMERA STOP\r\n");System.Console.Write("###########\r\n\r\n");//STOP CAMERAtry{if (mDevice.RemoteNodeList.GetNodePresent("AcquisitionAbort") == true){mDevice.RemoteNodeList["AcquisitionAbort"].Execute();System.Console.Write("5.1.12   {0} aborted\r\n", mDevice.Model);}mDevice.RemoteNodeList["AcquisitionStop"].Execute();System.Console.Write("5.1.12   {0} stopped \r\n", mDevice.Model);System.Console.Write("\r\n");String sExposureNodeName = "";if (mDevice.GetRemoteNodeList().GetNodePresent("ExposureTime")){sExposureNodeName = "ExposureTime";}else if (mDevice.GetRemoteNodeList().GetNodePresent("ExposureTimeAbs")){sExposureNodeName = "ExposureTimeAbs";}System.Console.Write("         ExposureTime:                   {0} [{1}]\r\n", (double)mDevice.RemoteNodeList[sExposureNodeName].Value, (string)mDevice.RemoteNodeList[sExposureNodeName].Unit);if (mDevice.TLType == "GEV"){if (mDevice.RemoteNodeList.GetNodePresent("DeviceStreamChannelPacketSize") == true)System.Console.Write("         DeviceStreamChannelPacketSize:  {0} [bytes]\r\n", (long)mDevice.RemoteNodeList["DeviceStreamChannelPacketSize"].Value);elseSystem.Console.Write("         GevSCPSPacketSize:              {0} [bytes]\r\n", (long)mDevice.RemoteNodeList["GevSCPSPacketSize"].Value);System.Console.Write("         GevSCPD (PacketDelay):          {0} [tics]\r\n", (long)mDevice.RemoteNodeList["GevSCPD"].Value);}System.Console.Write("\r\n");}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}//STOP DataStream acquisition & release bufferstry{if (mDataStream.TLType == "GEV"){//DataStream StatisticsSystem.Console.Write("         DataStream Statistics \r\n");System.Console.Write("           DataBlockComplete:              {0}\r\n", (long)mDataStream.NodeList["DataBlockComplete"].Value);System.Console.Write("           DataBlockInComplete:            {0}\r\n", (long)mDataStream.NodeList["DataBlockInComplete"].Value);System.Console.Write("           DataBlockMissing:               {0}\r\n", (long)mDataStream.NodeList["DataBlockMissing"].Value);System.Console.Write("           PacketResendRequestSingle:      {0}\r\n", (long)mDataStream.NodeList["PacketResendRequestSingle"].Value);System.Console.Write("           PacketResendRequestRange:       {0}\r\n", (long)mDataStream.NodeList["PacketResendRequestRange"].Value);System.Console.Write("           PacketResendReceive:            {0}\r\n", (long)mDataStream.NodeList["PacketResendReceive"].Value);System.Console.Write("           DataBlockDroppedBufferUnderrun: {0}\r\n", (long)mDataStream.NodeList["DataBlockDroppedBufferUnderrun"].Value);System.Console.Write("           Bitrate:                        {0}\r\n", (double)mDataStream.NodeList["Bitrate"].Value);System.Console.Write("           Throughput:                     {0}\r\n", (double)mDataStream.NodeList["Throughput"].Value);System.Console.Write("\r\n");}if (mDataStream.TLType == "U3V"){//DataStream StatisticsSystem.Console.Write("         DataStream Statistics \r\n");System.Console.Write("           GoodFrames:            {0}\r\n", (long)mDataStream.NodeList["GoodFrames"].Value);System.Console.Write("           CorruptedFrames:       {0}\r\n", (long)mDataStream.NodeList["CorruptedFrames"].Value);System.Console.Write("           LostFrames:            {0}\r\n", (long)mDataStream.NodeList["LostFrames"].Value);System.Console.Write("\r\n");}//BufferList InformationSystem.Console.Write("         BufferList Information \r\n");System.Console.Write("           DeliveredCount:        {0}\r\n", (long)bufferList.DeliveredCount);System.Console.Write("           UnderrunCount:         {0}\r\n", (long)bufferList.UnderrunCount);System.Console.Write("\r\n");mDataStream.StopAcquisition();System.Console.Write("5.1.12   DataStream stopped \r\n");bufferList.DiscardAllBuffers();}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("\r\n");// JPEGTAG06 (see description on top)// revert th JPEG settings if they was enabledif (jpeg_streaming_capable) {// ENABLE IMAGECOMPRESSION MODEmDevice.RemoteNodeList[kImageCompressionMode].Value = "Off";}System.Console.Write("RELEASE\r\n");System.Console.Write("#######\r\n\r\n");//Release buffersSystem.Console.Write("5.1.13   Releasing the resources\r\n");try{while (bufferList.Count > 0){mBuffer = (BGAPI2.Buffer)bufferList.Values.First();bufferList.RevokeBuffer(mBuffer);}System.Console.Write("         buffers after revoke:    {0}\r\n", bufferList.Count);mDataStream.Close();mDevice.Close();mInterface.Close();mSystem.Close();}catch (BGAPI2.Exceptions.IException ex){returnCode = (0 == returnCode) ? 1 : returnCode;System.Console.Write("ExceptionType:    {0} \r\n", ex.GetType());System.Console.Write("ErrorDescription: {0} \r\n", ex.GetErrorDescription());System.Console.Write("in function:      {0} \r\n", ex.GetFunctionName());}System.Console.Write("\r\nEnd\r\n\r\n");System.Console.Write("Input any number to close the program:\r\n");Console.Read();return returnCode;}}
}