更新采集代码

This commit is contained in:
琉璃月光
2025-12-28 00:15:34 +08:00
parent 8506c3af79
commit e6289f7b81

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@ -1,625 +1,147 @@
import os
import sys import sys
import numpy as np import os
from os import getcwd
import cv2 import cv2
#import msvcrt import time
import queue
import threading
import numpy as np
from ctypes import * from ctypes import *
# ================== 关键修复:设置 MVCAM_COMMON_RUNENV ================== # ================= MVS SDK =================
# 先尝试从系统获取,如果没有则使用默认路径 # 位置需要根据所在位置替换
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") sys.path.append("/opt/MVS/Samples/64/Python/MvImport")
from MvCameraControl_class import * from MvCameraControl_class import *
# 枚举设备 SAVE_DIR = "./capture"
def enum_devices(device = 0 , device_way = False): os.makedirs(SAVE_DIR, exist_ok=True)
"""
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 SAVE_QUEUE_SIZE = 200 # 队列缓存帧数
def identify_different_devices(deviceList): JPEG_QUALITY = 95
# 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 frame_queue = queue.Queue(maxsize=SAVE_QUEUE_SIZE)
elif mvcc_dev_info.nTLayerType == MV_USB_DEVICE: exit_flag = False
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: # 保存线程
print("\n1394-a/b device: [%d]" % i) # =====================================================
def save_worker():
while not exit_flag or not frame_queue.empty():
try:
img = frame_queue.get(timeout=0.1)
except queue.Empty:
continue
# 判断是否为 cameralink 设备 # ===== 本地时间(精确到毫秒)=====
elif mvcc_dev_info.nTLayerType == MV_CAMERALINK_DEVICE: now = time.time()
print("\ncameralink device: [%d]" % i) local_time = time.localtime(now)
# 获取当前设备名 ms = int((now - int(now)) * 1000)
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 timestamp = time.strftime("%Y%m%d_%H%M%S", local_time)
def input_num_camera(deviceList): filename = f"{timestamp}_{ms:03d}.jpg"
nConnectionNum = input("please input the number of the device to connect:") path = os.path.join(SAVE_DIR, filename)
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) cv2.imwrite(path, img, [cv2.IMWRITE_JPEG_QUALITY, JPEG_QUALITY])
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getImagebuffergetoneframetimeout
: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(): def main():
# 枚举设备 global exit_flag
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:") # ---------- 枚举设备 ----------
if int(stdcall) == 0: deviceList = MV_CC_DEVICE_INFO_LIST()
# 回调方式抓取图像 ret = MvCamera.MV_CC_EnumDevices(MV_GIGE_DEVICE | MV_USB_DEVICE, deviceList)
call_back_get_image(cam) if ret != 0 or deviceList.nDeviceNum == 0:
# 开启设备取流 print("No device")
start_grab_and_get_data_size(cam) return
# 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__": cam = MvCamera()
stDevice = cast(deviceList.pDeviceInfo[0], POINTER(MV_CC_DEVICE_INFO)).contents
cam.MV_CC_CreateHandle(stDevice)
cam.MV_CC_OpenDevice(MV_ACCESS_Exclusive, 0)
# 连续采集
cam.MV_CC_SetEnumValue("AcquisitionMode", 2)
cam.MV_CC_SetEnumValue("TriggerMode", 0)
cam.MV_CC_StartGrabbing()
stPayload = MVCC_INTVALUE_EX()
cam.MV_CC_GetIntValueEx("PayloadSize", stPayload)
payload = stPayload.nCurValue
data_buf = (c_ubyte * payload)()
frame_info = MV_FRAME_OUT_INFO_EX()
# 启动保存线程
saver = threading.Thread(target=save_worker, daemon=True)
saver.start()
print("Grabbing... press q to exit")
# ================= FPS 统计 =================
frame_count = 0
start_time = time.time()
# ===================================================
while True:
ret = cam.MV_CC_GetOneFrameTimeout(data_buf, payload, frame_info, 1000)
if ret != 0:
continue
frame_count += 1 # <<< 统计成功采集帧数
w, h = frame_info.nWidth, frame_info.nHeight
# 像素转换
convert = MV_CC_PIXEL_CONVERT_PARAM()
memset(byref(convert), 0, sizeof(convert))
convert.nWidth = w
convert.nHeight = h
convert.pSrcData = data_buf
convert.nSrcDataLen = frame_info.nFrameLen
convert.enSrcPixelType = frame_info.enPixelType
convert.enDstPixelType = PixelType_Gvsp_BGR8_Packed
convert.nDstBufferSize = w * h * 3
dst = (c_ubyte * convert.nDstBufferSize)()
convert.pDstBuffer = dst
cam.MV_CC_ConvertPixelType(convert)
img = np.frombuffer(dst, dtype=np.uint8).reshape(h, w, 3)
# 显示
cv2.imshow("Camera", cv2.resize(img, (640, 480)))
# 入队
if not frame_queue.full():
frame_queue.put(img.copy())
else:
print("queue full, drop frame")
if cv2.waitKey(1) & 0xFF == ord('q'):
break
# ================= FPS 输出 =================
total_time = time.time() - start_time
fps = frame_count / total_time if total_time > 0 else 0
print(f"\n===== Capture FPS Stats =====")
print(f"Frames captured : {frame_count}")
print(f"Total time (s) : {total_time:.3f}")
print(f"Average FPS : {fps:.2f}")
print(f"=============================\n")
# ===================================================
# =================== 正确退出 ===================
exit_flag = True
saver.join()
cam.MV_CC_StopGrabbing()
cam.MV_CC_CloseDevice()
cam.MV_CC_DestroyHandle()
cv2.destroyAllWindows()
print("Exit clean")
# =====================================================
if __name__ == "__main__":
main() main()