# -- coding: utf-8 -- import sys import threading import msvcrt from ctypes import * sys.path.append("../MvImport") from MvCameraControl_class import * g_bExit = False # 为线程定义一个函数 def work_thread(cam=0, pData=0, nDataSize=0): stOutFrame = MV_FRAME_OUT() memset(byref(stOutFrame), 0, sizeof(stOutFrame)) stInputFrameInfo = MV_CC_INPUT_FRAME_INFO() memset(byref(stInputFrameInfo), 0 ,sizeof(MV_CC_INPUT_FRAME_INFO)) while True: ret = cam.MV_CC_GetImageBuffer(stOutFrame, 1000) if None != stOutFrame.pBufAddr and 0 == ret: print ("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stOutFrame.stFrameInfo.nWidth, stOutFrame.stFrameInfo.nHeight, stOutFrame.stFrameInfo.nFrameNum)) stInputFrameInfo.pData = cast(stOutFrame.pBufAddr, POINTER(c_ubyte)) stInputFrameInfo.nDataLen = stOutFrame.stFrameInfo.nFrameLen # ch:输入一帧数据到录像接口 | en:Input a frame of data to the video interface ret = cam.MV_CC_InputOneFrame(stInputFrameInfo) if ret != 0: print ("input one frame fail! nRet [0x%x]" % ret) nRet = cam.MV_CC_FreeImageBuffer(stOutFrame) else: print ("no data[0x%x]" % ret) if g_bExit == True: break if __name__ == "__main__": deviceList = MV_CC_DEVICE_INFO_LIST() tlayerType = MV_GIGE_DEVICE | MV_USB_DEVICE # ch:枚举设备 | en:Enum device ret = MvCamera.MV_CC_EnumDevices(tlayerType, deviceList) if ret != 0: print ("enum devices fail! ret[0x%x]" % ret) sys.exit() if deviceList.nDeviceNum == 0: print ("find no device!") sys.exit() print ("Find %d devices!" % deviceList.nDeviceNum) for i in range(0, deviceList.nDeviceNum): mvcc_dev_info = cast(deviceList.pDeviceInfo[i], POINTER(MV_CC_DEVICE_INFO)).contents if mvcc_dev_info.nTLayerType == MV_GIGE_DEVICE: print ("\ngige device: [%d]" % i) strModeName = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chModelName: strModeName = strModeName + chr(per) print ("device model name: %s" % strModeName) nip1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24) nip2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16) nip3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8) nip4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff) print ("current ip: %d.%d.%d.%d\n" % (nip1, nip2, nip3, nip4)) elif mvcc_dev_info.nTLayerType == MV_USB_DEVICE: print ("\nu3v device: [%d]" % i) strModeName = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chModelName: if per == 0: break strModeName = strModeName + chr(per) print ("device model name: %s" % strModeName) strSerialNumber = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chSerialNumber: if per == 0: break strSerialNumber = strSerialNumber + chr(per) print ("user serial number: %s" % strSerialNumber) nConnectionNum = input("please input the number of the device to connect:") if int(nConnectionNum) >= deviceList.nDeviceNum: print ("intput error!") sys.exit() # ch:创建相机实例 | en:Creat Camera Object cam = MvCamera() # ch:选择设备并创建句柄 | en:Select device and create handle stDeviceList = cast(deviceList.pDeviceInfo[int(nConnectionNum)], POINTER(MV_CC_DEVICE_INFO)).contents ret = cam.MV_CC_CreateHandle(stDeviceList) if ret != 0: print ("create handle fail! ret[0x%x]" % ret) sys.exit() # ch:打开设备 | en:Open device ret = cam.MV_CC_OpenDevice(MV_ACCESS_Exclusive, 0) if ret != 0: print ("open device fail! ret[0x%x]" % ret) sys.exit() # ch:探测网络最佳包大小(只对GigE相机有效) | en:Detection network optimal package size(It only works for the GigE camera) if stDeviceList.nTLayerType == MV_GIGE_DEVICE: nPacketSize = cam.MV_CC_GetOptimalPacketSize() if int(nPacketSize) > 0: ret = cam.MV_CC_SetIntValue("GevSCPSPacketSize",nPacketSize) if ret != 0: print ("Warning: Set Packet Size fail! ret[0x%x]" % ret) else: print ("Warning: Get Packet Size fail! ret[0x%x]" % nPacketSize) stBool = c_bool(False) ret =cam.MV_CC_GetBoolValue("AcquisitionFrameRateEnable", stBool) if ret != 0: print ("get AcquisitionFrameRateEnable fail! ret[0x%x]" % ret) # ch:设置触发模式为off | en:Set trigger mode as off ret = cam.MV_CC_SetEnumValue("TriggerMode", MV_TRIGGER_MODE_OFF) if ret != 0: print ("set trigger mode fail! ret[0x%x]" % ret) sys.exit() stParam = MVCC_INTVALUE() memset(byref(stParam), 0, sizeof(MVCC_INTVALUE)) stRecordPar = MV_CC_RECORD_PARAM() memset(byref(stRecordPar), 0, sizeof(MV_CC_RECORD_PARAM)) # ch:获取图像高度 | en:Get the width of the image ret = cam.MV_CC_GetIntValue("Width", stParam) if ret != 0: print ("get width fail! nRet [0x%x]" % ret) sys.exit() stRecordPar.nWidth = stParam.nCurValue # ch:获取图像高度 | en:Get the height of the image ret = cam.MV_CC_GetIntValue("Height", stParam) if ret != 0: print ("get height fail! nRet [0x%x]"% ret) sys.exit() stRecordPar.nHeight = stParam.nCurValue # ch:获取图像像素 | en:Get the pixelFormat of the image stEnumValue = MVCC_ENUMVALUE() memset(byref(stEnumValue), 0 ,sizeof(MVCC_ENUMVALUE)) ret = cam.MV_CC_GetEnumValue("PixelFormat", stEnumValue) if ret != 0: print ("get PixelFormat fail! nRet [0x%x]" % ret) sys.exit() stRecordPar.enPixelType = MvGvspPixelType(stEnumValue.nCurValue) # ch:获取图像帧率 | en:Get the resultingFrameRate of the image stFloatValue = MVCC_FLOATVALUE() memset(byref(stFloatValue), 0 ,sizeof(MVCC_FLOATVALUE)) ret = cam.MV_CC_GetFloatValue("ResultingFrameRate", stFloatValue) if ret != 0: print ("get ResultingFrameRate value fail! nRet [0x%x]" % ret) sys.exit() stRecordPar.fFrameRate = stFloatValue.fCurValue # ch:录像结构体赋值 | en:Video structure assignment stRecordPar.nBitRate = 1000 stRecordPar.enRecordFmtType = MV_FormatType_AVI stRecordPar.strFilePath= 'Recording.avi'.encode('ascii') # ch:开始录像 | en:Start Recording nRet = cam.MV_CC_StartRecord(stRecordPar) if ret != 0: print ("Start Record fail! nRet [0x%x]\n", nRet) sys.exit() # ch:开始取流 | en:Start grab image ret = cam.MV_CC_StartGrabbing() if ret != 0: print ("start grabbing fail! ret[0x%x]" % ret) sys.exit() try: hThreadHandle = threading.Thread(target=work_thread, args=(cam, None, None)) hThreadHandle.start() except: print ("error: unable to start thread") print ("press a key to stop grabbing.") msvcrt.getch() g_bExit = True hThreadHandle.join() # ch:停止取流 | en:Stop grab image ret = cam.MV_CC_StopGrabbing() if ret != 0: print ("stop grabbing fail! ret[0x%x]" % ret) sys.exit() # ch:停止录像 | en:Stop recording ret = cam.MV_CC_StopRecord() if ret != 0: print ("stop Record fail! ret[0x%x]" % ret) sys.exit() # ch:关闭设备 | Close device ret = cam.MV_CC_CloseDevice() if ret != 0: print ("close deivce fail! ret[0x%x]" % ret) sys.exit() # ch:销毁句柄 | Destroy handle ret = cam.MV_CC_DestroyHandle() if ret != 0: print ("destroy handle fail! ret[0x%x]" % ret) sys.exit()