import os import sys import numpy as np from os import getcwd import cv2 #import msvcrt from ctypes import * # ================== 关键修复:设置 MVCAM_COMMON_RUNENV ================== # 先尝试从系统获取,如果没有则使用默认路径 import sys import ctypes # 临时修复:让 WINFUNCTYPE 在 Linux 上指向 CFUNCTYPE if not sys.platform.startswith('win'): if not hasattr(ctypes, 'WINFUNCTYPE'): ctypes.WINFUNCTYPE = ctypes.CFUNCTYPE if os.getenv("MVCAM_COMMON_RUNENV") is None: # 根据你的 MVS 安装位置调整这个路径! default_mvs_lib_path = "/opt/MVS/lib" # 常见路径,也可能是 /opt/MVS/bin os.environ["MVCAM_COMMON_RUNENV"] = default_mvs_lib_path print(f"[INFO] Set MVCAM_COMMON_RUNENV to: {default_mvs_lib_path}") # 确保 libMvCameraControl.so 存在 dll_path = os.path.join(os.environ["MVCAM_COMMON_RUNENV"], "64", "libMvCameraControl.so") if not os.path.exists(dll_path): raise FileNotFoundError(f"Required library not found: {dll_path}. " f"Please check your MVS installation and MVCAM_COMMON_RUNENV path.") sys.path.append("/opt/MVS/Samples/64/Python/MvImport") from MvCameraControl_class import * # 枚举设备 def enum_devices(device = 0 , device_way = False): """ device = 0 枚举网口、USB口、未知设备、cameralink 设备 device = 1 枚举GenTL设备 """ if device_way == False: if device == 0: tlayerType = MV_GIGE_DEVICE | MV_USB_DEVICE | MV_UNKNOW_DEVICE | MV_1394_DEVICE | MV_CAMERALINK_DEVICE deviceList = MV_CC_DEVICE_INFO_LIST() # 枚举设备 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) return deviceList else: pass elif device_way == True: pass # 判断不同类型设备 def identify_different_devices(deviceList): # 判断不同类型设备,并输出相关信息 for i in range(0, deviceList.nDeviceNum): mvcc_dev_info = cast(deviceList.pDeviceInfo[i], POINTER(MV_CC_DEVICE_INFO)).contents # 判断是否为网口相机 if mvcc_dev_info.nTLayerType == MV_GIGE_DEVICE: print ("\n网口设备序号: [%d]" % i) # 获取设备名 strModeName = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chModelName: strModeName = strModeName + chr(per) print ("当前设备型号名: %s" % strModeName) # 获取当前设备 IP 地址 nip1_1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0xff000000) >> 24) nip1_2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x00ff0000) >> 16) nip1_3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x0000ff00) >> 8) nip1_4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentIp & 0x000000ff) print ("当前 ip 地址: %d.%d.%d.%d" % (nip1_1, nip1_2, nip1_3, nip1_4)) # 获取当前子网掩码 nip2_1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentSubNetMask & 0xff000000) >> 24) nip2_2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentSubNetMask & 0x00ff0000) >> 16) nip2_3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentSubNetMask & 0x0000ff00) >> 8) nip2_4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nCurrentSubNetMask & 0x000000ff) print ("当前子网掩码 : %d.%d.%d.%d" % (nip2_1, nip2_2, nip2_3, nip2_4)) # 获取当前网关 nip3_1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nDefultGateWay & 0xff000000) >> 24) nip3_2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nDefultGateWay & 0x00ff0000) >> 16) nip3_3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nDefultGateWay & 0x0000ff00) >> 8) nip3_4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nDefultGateWay & 0x000000ff) print("当前网关 : %d.%d.%d.%d" % (nip3_1, nip3_2, nip3_3, nip3_4)) # 获取网口 IP 地址 nip4_1 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nNetExport & 0xff000000) >> 24) nip4_2 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nNetExport & 0x00ff0000) >> 16) nip4_3 = ((mvcc_dev_info.SpecialInfo.stGigEInfo.nNetExport & 0x0000ff00) >> 8) nip4_4 = (mvcc_dev_info.SpecialInfo.stGigEInfo.nNetExport & 0x000000ff) print("当前连接的网口 IP 地址 : %d.%d.%d.%d" % (nip4_1, nip4_2, nip4_3, nip4_4)) # 获取制造商名称 strmanufacturerName = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chManufacturerName: strmanufacturerName = strmanufacturerName + chr(per) print("制造商名称 : %s" % strmanufacturerName) # 获取设备版本 stdeviceversion = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chDeviceVersion: stdeviceversion = stdeviceversion + chr(per) print("设备当前使用固件版本 : %s" % stdeviceversion) # 获取制造商的具体信息 stManufacturerSpecificInfo = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chManufacturerSpecificInfo: stManufacturerSpecificInfo = stManufacturerSpecificInfo + chr(per) print("设备制造商的具体信息 : %s" % stManufacturerSpecificInfo) # 获取设备序列号 stSerialNumber = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chSerialNumber: stSerialNumber = stSerialNumber + chr(per) print("设备序列号 : %s" % stSerialNumber) # 获取用户自定义名称 stUserDefinedName = "" for per in mvcc_dev_info.SpecialInfo.stGigEInfo.chUserDefinedName: stUserDefinedName = stUserDefinedName + chr(per) print("用户自定义名称 : %s" % stUserDefinedName) # 判断是否为 USB 接口相机 elif mvcc_dev_info.nTLayerType == MV_USB_DEVICE: print ("\nU3V 设备序号e: [%d]" % i) strModeName = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chModelName: if per == 0: break strModeName = strModeName + chr(per) print ("当前设备型号名 : %s" % strModeName) strSerialNumber = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chSerialNumber: if per == 0: break strSerialNumber = strSerialNumber + chr(per) print ("当前设备序列号 : %s" % strSerialNumber) # 获取制造商名称 strmanufacturerName = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chVendorName: strmanufacturerName = strmanufacturerName + chr(per) print("制造商名称 : %s" % strmanufacturerName) # 获取设备版本 stdeviceversion = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chDeviceVersion: stdeviceversion = stdeviceversion + chr(per) print("设备当前使用固件版本 : %s" % stdeviceversion) # 获取设备序列号 stSerialNumber = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chSerialNumber: stSerialNumber = stSerialNumber + chr(per) print("设备序列号 : %s" % stSerialNumber) # 获取用户自定义名称 stUserDefinedName = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chUserDefinedName: stUserDefinedName = stUserDefinedName + chr(per) print("用户自定义名称 : %s" % stUserDefinedName) # 获取设备 GUID stDeviceGUID = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chDeviceGUID: stDeviceGUID = stDeviceGUID + chr(per) print("设备GUID号 : %s" % stDeviceGUID) # 获取设备的家族名称 stFamilyName = "" for per in mvcc_dev_info.SpecialInfo.stUsb3VInfo.chFamilyName: stFamilyName = stFamilyName + chr(per) print("设备的家族名称 : %s" % stFamilyName) # 判断是否为 1394-a/b 设备 elif mvcc_dev_info.nTLayerType == MV_1394_DEVICE: print("\n1394-a/b device: [%d]" % i) # 判断是否为 cameralink 设备 elif mvcc_dev_info.nTLayerType == MV_CAMERALINK_DEVICE: print("\ncameralink device: [%d]" % i) # 获取当前设备名 strModeName = "" for per in mvcc_dev_info.SpecialInfo.stCamLInfo.chModelName: if per == 0: break strModeName = strModeName + chr(per) print("当前设备型号名 : %s" % strModeName) # 获取当前设备序列号 strSerialNumber = "" for per in mvcc_dev_info.SpecialInfo.stCamLInfo.chSerialNumber: if per == 0: break strSerialNumber = strSerialNumber + chr(per) print("当前设备序列号 : %s" % strSerialNumber) # 获取制造商名称 strmanufacturerName = "" for per in mvcc_dev_info.SpecialInfo.stCamLInfo.chVendorName: strmanufacturerName = strmanufacturerName + chr(per) print("制造商名称 : %s" % strmanufacturerName) # 获取设备版本 stdeviceversion = "" for per in mvcc_dev_info.SpecialInfo.stCamLInfo.chDeviceVersion: stdeviceversion = stdeviceversion + chr(per) print("设备当前使用固件版本 : %s" % stdeviceversion) # 输入需要连接的相机的序号 def input_num_camera(deviceList): nConnectionNum = input("please input the number of the device to connect:") if int(nConnectionNum) >= deviceList.nDeviceNum: print("intput error!") sys.exit() return nConnectionNum # 创建相机实例并创建句柄,(设置日志路径) def creat_camera(deviceList , nConnectionNum ,log = True , log_path = getcwd()): """ :param deviceList: 设备列表 :param nConnectionNum: 需要连接的设备序号 :param log: 是否创建日志 :param log_path: 日志保存路径 :return: 相机实例和设备列表 """ # 创建相机实例 cam = MvCamera() # 选择设备并创建句柄 stDeviceList = cast(deviceList.pDeviceInfo[int(nConnectionNum)], POINTER(MV_CC_DEVICE_INFO)).contents if log == True: ret = cam.MV_CC_SetSDKLogPath(log_path) print(log_path) if ret != 0: print("set Log path fail! ret[0x%x]" % ret) sys.exit() # 创建句柄,生成日志 ret = cam.MV_CC_CreateHandle(stDeviceList) if ret != 0: print("create handle fail! ret[0x%x]" % ret) sys.exit() elif log == False: # 创建句柄,不生成日志 ret = cam.MV_CC_CreateHandleWithoutLog(stDeviceList) print(1111) if ret != 0: print("create handle fail! ret[0x%x]" % ret) sys.exit() return cam , stDeviceList # 打开设备 def open_device(cam): # 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() # 获取各种类型节点参数 def get_Value(cam , param_type = "int_value" , node_name = "PayloadSize"): """ :param cam: 相机实例 :param_type: 获取节点值得类型 :param node_name: 节点名 可选 int 、float 、enum 、bool 、string 型节点 :return: 节点值 """ if param_type == "int_value": stParam = MVCC_INTVALUE_EX() memset(byref(stParam), 0, sizeof(MVCC_INTVALUE_EX)) ret = cam.MV_CC_GetIntValueEx(node_name, stParam) if ret != 0: print("获取 int 型数据 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() int_value = stParam.nCurValue return int_value elif param_type == "float_value": stFloatValue = MVCC_FLOATVALUE() memset(byref(stFloatValue), 0, sizeof(MVCC_FLOATVALUE)) ret = cam.MV_CC_GetFloatValue( node_name , stFloatValue) if ret != 0: print("获取 float 型数据 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() float_value = stFloatValue.fCurValue return float_value elif param_type == "enum_value": stEnumValue = MVCC_ENUMVALUE() memset(byref(stEnumValue), 0, sizeof(MVCC_ENUMVALUE)) ret = cam.MV_CC_GetEnumValue(node_name, stEnumValue) if ret != 0: print("获取 enum 型数据 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() enum_value = stEnumValue.nCurValue return enum_value elif param_type == "bool_value": stBool = c_bool(False) ret = cam.MV_CC_GetBoolValue(node_name, stBool) if ret != 0: print("获取 bool 型数据 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() return stBool.value elif param_type == "string_value": stStringValue = MVCC_STRINGVALUE() memset(byref(stStringValue), 0, sizeof( MVCC_STRINGVALUE)) ret = cam.MV_CC_GetStringValue(node_name, stStringValue) if ret != 0: print("获取 string 型数据 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() string_value = stStringValue.chCurValue return string_value # 设置各种类型节点参数 def set_Value(cam , param_type = "int_value" , node_name = "PayloadSize" , node_value = None): """ :param cam: 相机实例 :param param_type: 需要设置的节点值得类型 int: float: enum: 参考于客户端中该选项的 Enum Entry Value 值即可 bool: 对应 0 为关,1 为开 string: 输入值为数字或者英文字符,不能为汉字 :param node_name: 需要设置的节点名 :param node_value: 设置给节点的值 :return: """ if param_type == "int_value": stParam = int(node_value) ret = cam.MV_CC_SetIntValueEx(node_name, stParam) if ret != 0: print("设置 int 型数据节点 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() print("设置 int 型数据节点 %s 成功 !设置值为 %s !"%(node_name , node_value)) elif param_type == "float_value": stFloatValue = float(node_value) ret = cam.MV_CC_SetFloatValue( node_name , stFloatValue) if ret != 0: print("设置 float 型数据节点 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() print("设置 float 型数据节点 %s 成功 !设置值为 %s !" % (node_name, node_value)) elif param_type == "enum_value": stEnumValue = node_value ret = cam.MV_CC_SetEnumValue(node_name, stEnumValue) if ret != 0: print("设置 enum 型数据节点 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() print("设置 enum 型数据节点 %s 成功 !设置值为 %s !" % (node_name, node_value)) elif param_type == "bool_value": ret = cam.MV_CC_SetBoolValue(node_name, node_value) if ret != 0: print("设置 bool 型数据节点 %s 失败 ! 报错码 ret[0x%x]" %(node_name,ret)) sys.exit() print("设置 bool 型数据节点 %s 成功 !设置值为 %s !" % (node_name, node_value)) elif param_type == "string_value": stStringValue = str(node_value) ret = cam.MV_CC_SetStringValue(node_name, stStringValue) if ret != 0: print("设置 string 型数据节点 %s 失败 ! 报错码 ret[0x%x]" % (node_name , ret)) sys.exit() print("设置 string 型数据节点 %s 成功 !设置值为 %s !" % (node_name, node_value)) # 寄存器读写 def read_or_write_memory(cam , way = "read"): if way == "read": pass cam.MV_CC_ReadMemory() elif way == "write": pass cam.MV_CC_WriteMemory() # 判断相机是否处于连接状态(返回值如何获取)================================= def decide_divice_on_line(cam): value = cam.MV_CC_IsDeviceConnected() if value == True: print("该设备在线 !") else: print("该设备已掉线 !", value) # 设置 SDK 内部图像缓存节点个数 def set_image_Node_num(cam , Num = 1): ret = cam.MV_CC_SetImageNodeNum(nNum = Num) if ret != 0: print("设置 SDK 内部图像缓存节点个数失败 ,报错码 ret[0x%x]" % ret) else: print("设置 SDK 内部图像缓存节点个数为 %d ,设置成功!" % Num) # 设置取流策略 def set_grab_strategy(cam , grabstrategy = 0 , outputqueuesize = 1): """ • OneByOne: 从旧到新一帧一帧的从输出缓存列表中获取图像,打开设备后默认为该策略 • LatestImagesOnly: 仅从输出缓存列表中获取最新的一帧图像,同时清空输出缓存列表 • LatestImages: 从输出缓存列表中获取最新的OutputQueueSize帧图像,其中OutputQueueSize范围为1 - ImageNodeNum,可用MV_CC_SetOutputQueueSize()接口设置,ImageNodeNum默认为1,可用MV_CC_SetImageNodeNum()接口设置OutputQueueSize设置成1等同于LatestImagesOnly策略,OutputQueueSize设置成ImageNodeNum等同于OneByOne策略 • UpcomingImage: 在调用取流接口时忽略输出缓存列表中所有图像,并等待设备即将生成的一帧图像。该策略只支持GigE设备,不支持U3V设备 """ if grabstrategy != 2: ret = cam.MV_CC_SetGrabStrategy(enGrabStrategy = grabstrategy) if ret != 0: print("设置取流策略失败 ,报错码 ret[0x%x]" % ret) else: print("设置 取流策略为 %d ,设置成功!" % grabstrategy) else: ret = cam.MV_CC_SetGrabStrategy(enGrabStrategy=grabstrategy) if ret != 0: print("设置取流策略失败 ,报错码 ret[0x%x]" % ret) else: print("设置 取流策略为 %d ,设置成功!" % grabstrategy) ret = cam.MV_CC_SetOutputQueueSize(nOutputQueueSize = outputqueuesize) if ret != 0: print("设置使出缓存个数失败 ,报错码 ret[0x%x]" % ret) else: print("设置 输出缓存个数为 %d ,设置成功!" % outputqueuesize) # 显示图像 def image_show(image , name): image = cv2.resize(image, (600, 400), interpolation=cv2.INTER_AREA) name = str(name) cv2.imshow(name, image) cv2.imwrite("name.bmp", image) k = cv2.waitKey(1) & 0xff # 需要显示的图像数据转换 def image_control(data , stFrameInfo): if stFrameInfo.enPixelType == 17301505: image = data.reshape((stFrameInfo.nHeight, stFrameInfo.nWidth)) image_show(image=image , name = stFrameInfo.nHeight) elif stFrameInfo.enPixelType == 17301514: data = data.reshape(stFrameInfo.nHeight, stFrameInfo.nWidth, -1) image = cv2.cvtColor(data, cv2.COLOR_BAYER_GB2RGB) image_show(image=image, name = stFrameInfo.nHeight) elif stFrameInfo.enPixelType == 35127316: data = data.reshape(stFrameInfo.nHeight, stFrameInfo.nWidth, -1) image = cv2.cvtColor(data, cv2.COLOR_RGB2BGR) image_show(image=image, name = stFrameInfo.nHeight) elif stFrameInfo.enPixelType == 34603039: data = data.reshape(stFrameInfo.nHeight, stFrameInfo.nWidth, -1) image = cv2.cvtColor(data, cv2.COLOR_YUV2BGR_Y422) image_show(image = image, name = stFrameInfo.nHeight) # 主动图像采集 def access_get_image(cam , active_way = "getImagebuffer"): """ :param cam: 相机实例 :active_way:主动取流方式的不同方法 分别是(getImagebuffer)(getoneframetimeout) :return: """ if active_way == "getImagebuffer": stOutFrame = MV_FRAME_OUT() memset(byref(stOutFrame), 0, sizeof(stOutFrame)) while True: ret = cam.MV_CC_GetImageBuffer(stOutFrame, 1000) if None != stOutFrame.pBufAddr and 0 == ret and stOutFrame.stFrameInfo.enPixelType == 17301505: print("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stOutFrame.stFrameInfo.nWidth, stOutFrame.stFrameInfo.nHeight, stOutFrame.stFrameInfo.nFrameNum)) pData = (c_ubyte * stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight)() cdll.msvcrt.memcpy(byref(pData), stOutFrame.pBufAddr,stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight) data = np.frombuffer(pData, count=int(stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight),dtype=np.uint8) image_control(data=data, stFrameInfo=stOutFrame.stFrameInfo) elif None != stOutFrame.pBufAddr and 0 == ret and stOutFrame.stFrameInfo.enPixelType == 17301514: print("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stOutFrame.stFrameInfo.nWidth, stOutFrame.stFrameInfo.nHeight, stOutFrame.stFrameInfo.nFrameNum)) pData = (c_ubyte * stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight)() cdll.msvcrt.memcpy(byref(pData), stOutFrame.pBufAddr,stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight) data = np.frombuffer(pData, count=int(stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight),dtype=np.uint8) image_control(data=data, stFrameInfo=stOutFrame.stFrameInfo) elif None != stOutFrame.pBufAddr and 0 == ret and stOutFrame.stFrameInfo.enPixelType == 35127316: print("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stOutFrame.stFrameInfo.nWidth, stOutFrame.stFrameInfo.nHeight, stOutFrame.stFrameInfo.nFrameNum)) pData = (c_ubyte * stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight*3)() cdll.msvcrt.memcpy(byref(pData), stOutFrame.pBufAddr,stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight*3) data = np.frombuffer(pData, count=int(stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight*3),dtype=np.uint8) image_control(data=data, stFrameInfo=stOutFrame.stFrameInfo) elif None != stOutFrame.pBufAddr and 0 == ret and stOutFrame.stFrameInfo.enPixelType == 34603039: print("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stOutFrame.stFrameInfo.nWidth, stOutFrame.stFrameInfo.nHeight, stOutFrame.stFrameInfo.nFrameNum)) pData = (c_ubyte * stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight * 2)() cdll.msvcrt.memcpy(byref(pData), stOutFrame.pBufAddr,stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight * 2) data = np.frombuffer(pData, count=int(stOutFrame.stFrameInfo.nWidth * stOutFrame.stFrameInfo.nHeight * 2),dtype=np.uint8) image_control(data=data, stFrameInfo=stOutFrame.stFrameInfo) else: print("no data[0x%x]" % ret) nRet = cam.MV_CC_FreeImageBuffer(stOutFrame) elif active_way == "getoneframetimeout": stParam = MVCC_INTVALUE_EX() memset(byref(stParam), 0, sizeof(MVCC_INTVALUE_EX)) ret = cam.MV_CC_GetIntValueEx("PayloadSize", stParam) if ret != 0: print("get payload size fail! ret[0x%x]" % ret) sys.exit() nDataSize = stParam.nCurValue pData = (c_ubyte * nDataSize)() stFrameInfo = MV_FRAME_OUT_INFO_EX() memset(byref(stFrameInfo), 0, sizeof(stFrameInfo)) while True: ret = cam.MV_CC_GetOneFrameTimeout(pData, nDataSize, stFrameInfo, 1000) if ret == 0: print("get one frame: Width[%d], Height[%d], nFrameNum[%d] " % (stFrameInfo.nWidth, stFrameInfo.nHeight, stFrameInfo.nFrameNum)) image = np.asarray(pData) image_control(data=image, stFrameInfo=stFrameInfo) else: print("no data[0x%x]" % ret) # 回调取图采集 winfun_ctype = WINFUNCTYPE stFrameInfo = POINTER(MV_FRAME_OUT_INFO_EX) pData = POINTER(c_ubyte) FrameInfoCallBack = winfun_ctype(None, pData, stFrameInfo, c_void_p) def image_callback(pData, pFrameInfo, pUser): global img_buff img_buff = None stFrameInfo = cast(pFrameInfo, POINTER(MV_FRAME_OUT_INFO_EX)).contents if stFrameInfo: print ("get one frame: Width[%d], Height[%d], nFrameNum[%d]" % (stFrameInfo.nWidth, stFrameInfo.nHeight, stFrameInfo.nFrameNum)) if img_buff is None and stFrameInfo.enPixelType == 17301505: img_buff = (c_ubyte * stFrameInfo.nWidth*stFrameInfo.nHeight)() cdll.msvcrt.memcpy(byref(img_buff) , pData , stFrameInfo.nWidth*stFrameInfo.nHeight) data = np.frombuffer(img_buff , count = int(stFrameInfo.nWidth*stFrameInfo.nHeight) , dtype = np.uint8) image_control(data=data, stFrameInfo=stFrameInfo) del img_buff elif img_buff is None and stFrameInfo.enPixelType == 17301514: img_buff = (c_ubyte * stFrameInfo.nWidth*stFrameInfo.nHeight)() cdll.msvcrt.memcpy(byref(img_buff) , pData , stFrameInfo.nWidth*stFrameInfo.nHeight) data = np.frombuffer(img_buff , count = int(stFrameInfo.nWidth*stFrameInfo.nHeight) , dtype = np.uint8) image_control(data=data, stFrameInfo=stFrameInfo) del img_buff elif img_buff is None and stFrameInfo.enPixelType == 35127316: img_buff = (c_ubyte * stFrameInfo.nWidth * stFrameInfo.nHeight*3)() cdll.msvcrt.memcpy(byref(img_buff), pData, stFrameInfo.nWidth * stFrameInfo.nHeight*3) data = np.frombuffer(img_buff, count=int(stFrameInfo.nWidth * stFrameInfo.nHeight*3), dtype=np.uint8) image_control(data=data, stFrameInfo=stFrameInfo) del img_buff elif img_buff is None and stFrameInfo.enPixelType == 34603039: img_buff = (c_ubyte * stFrameInfo.nWidth * stFrameInfo.nHeight * 2)() cdll.msvcrt.memcpy(byref(img_buff), pData, stFrameInfo.nWidth * stFrameInfo.nHeight * 2) data = np.frombuffer(img_buff, count=int(stFrameInfo.nWidth * stFrameInfo.nHeight * 2), dtype=np.uint8) image_control(data=data, stFrameInfo=stFrameInfo) del img_buff CALL_BACK_FUN = FrameInfoCallBack(image_callback) # 事件回调 stEventInfo = POINTER(MV_EVENT_OUT_INFO) pData = POINTER(c_ubyte) EventInfoCallBack = winfun_ctype(None, stEventInfo, c_void_p) def event_callback(pEventInfo, pUser): stPEventInfo = cast(pEventInfo, POINTER(MV_EVENT_OUT_INFO)).contents nBlockId = stPEventInfo.nBlockIdHigh nBlockId = (nBlockId << 32) + stPEventInfo.nBlockIdLow nTimestamp = stPEventInfo.nTimestampHigh nTimestamp = (nTimestamp << 32) + stPEventInfo.nTimestampLow if stPEventInfo: print ("EventName[%s], EventId[%u], BlockId[%d], Timestamp[%d]" % (stPEventInfo.EventName, stPEventInfo.nEventID, nBlockId, nTimestamp)) CALL_BACK_FUN_2 = EventInfoCallBack(event_callback) # 注册回调取图 def call_back_get_image(cam): # ch:注册抓图回调 | en:Register image callback ret = cam.MV_CC_RegisterImageCallBackEx(CALL_BACK_FUN, None) if ret != 0: print("register image callback fail! ret[0x%x]" % ret) sys.exit() # 关闭设备与销毁句柄 def close_and_destroy_device(cam , data_buf=None): # 停止取流 ret = cam.MV_CC_StopGrabbing() if ret != 0: print("stop grabbing fail! ret[0x%x]" % ret) sys.exit() # 关闭设备 ret = cam.MV_CC_CloseDevice() if ret != 0: print("close deivce fail! ret[0x%x]" % ret) del data_buf sys.exit() # 销毁句柄 ret = cam.MV_CC_DestroyHandle() if ret != 0: print("destroy handle fail! ret[0x%x]" % ret) del data_buf sys.exit() del data_buf # 开启取流并获取数据包大小 def start_grab_and_get_data_size(cam): ret = cam.MV_CC_StartGrabbing() if ret != 0: print("开始取流失败! ret[0x%x]" % ret) sys.exit() def main(): # 枚举设备 deviceList = enum_devices(device=0, device_way=False) # 判断不同类型设备 identify_different_devices(deviceList) # 输入需要被连接的设备 nConnectionNum = input_num_camera(deviceList) # 创建相机实例并创建句柄,(设置日志路径) cam, stDeviceList = creat_camera(deviceList, nConnectionNum, log=False) # decide_divice_on_line(cam) ============== # 打开设备 open_device(cam) # # 设置缓存节点个数 # set_image_Node_num(cam, Num=10) # # 设置取流策略 # set_grab_strategy(cam, grabstrategy=2, outputqueuesize=10) # 设置设备的一些参数 # set_Value(cam, param_type="bool_value", node_name="TriggerCacheEnable", node_value=1) # 获取设备的一些参数 # get_value = get_Value(cam , param_type = "int_value" , node_name = "PayloadSize") stdcall = input("回调方式取流显示请输入 0 主动取流方式显示请输入 1:") if int(stdcall) == 0: # 回调方式抓取图像 call_back_get_image(cam) # 开启设备取流 start_grab_and_get_data_size(cam) # 当使用 回调取流时,需要在此处添加 print ("press a key to stop grabbing.") msvcrt.getch() # 关闭设备与销毁句柄 close_and_destroy_device(cam) elif int(stdcall) == 1: # 开启设备取流 start_grab_and_get_data_size(cam) # 主动取流方式抓取图像 access_get_image(cam, active_way="getImagebuffer") # 关闭设备与销毁句柄 close_and_destroy_device(cam) if __name__=="__main__": main()