python 海康威视sdk 实时预览
http://www.genshuixue.com/i-cxy/p/12205516
CDLL("./libhpr.so", mode=ctypes.RTLD_GLOBAL)
CDLL("./libhlog.so", mode=ctypes.RTLD_GLOBAL)
lib = cdll.LoadLibrary("./libHcsSdk.so")
#coding=utf-8
import threading
from ctypes import *
dll = CDLL("./PlatformSDK.dll")
import sys
from PyQt5.QtWidgets import QApplication,QWidget
def aaa(a):
pStr = c_char_p( )
pStr.value = a
return pStr
def getStreamCallback(handle,iStreamType,data,size,pUser):
print(str(handle),iStreamType,size)
def getPreviewMsgCallback(handle, pUser,nMsg):
print(str(handle))
class PLAT_DEVICE_INFO_V20(Structure):
_fields_ = [('iId', c_int),
('iControlUnitId', c_int),
('iDevType', c_int),
('szName', c_char*64),
('szIndexCode', c_char*64),
('iRes1', c_int)]
def __str__(self):
return u'{0},{1}'.format(self.iId, self.iControlUnitId);
class PLAT_GET_INFO_RSP(Structure):
_fields_ = [('iRtnNum', c_int),
('iTotal', c_int)]
def __str__(self):
return u'{0},{1}'.format(self.iRtnNum, self.iTotal)
class PLAT_GET_INFO_REQ(Structure):
_fields_ = [('iBeginPos', c_int),
('iGetNum', c_int)]
class PLAT_CHANNEL_INFO_V20(Structure):
_fields_ = [('iChannelId', c_int), #通道（如监控点、门禁点、IO等）Id
('iChannelNo', c_int), #在设备中所属的通道号
('iRegionId', c_int), #所属区域Id
('iDeviceId', c_int), # 所属设备Id
('iState', c_int), # 通道状态 参见PLAT_STATUS_*
('szChannelName', c_char * 256),#通道名称
('szChannelIndex', c_char * 64),#通道的编号
('szDeviceIndex', c_char * 64),#所属设备的编号
('szStreamUrl', c_char*128)]#取流URL
def __str__(self):
return u'{0},{1}'.format(self.iState, self.iDeviceId)
def getDevice():
pLAT_GET_INFO_RSP = PLAT_GET_INFO_RSP()
pLAT_DEVICE_INFO_V20 = PLAT_DEVICE_INFO_V20()
ret = dll.Plat_VSS_GetVssDevInfo_V20(g_iLogHandle, None, None, byref(pLAT_GET_INFO_RSP))
print("Plat_VSS_GetVssDevInfo_V20", ret)
print(pLAT_GET_INFO_RSP.__str__())
# print(dll.Plat_GetLastError())
ret = dll.Plat_VSS_GetVssDevInfo_V20(g_iLogHandle, addressof(pLAT_DEVICE_INFO_V20), addressof(pLAT_GET_INFO_RSP),
addressof(pLAT_GET_INFO_RSP))
print("Plat_VSS_GetVssDevInfo_V20", ret)
print(pLAT_DEVICE_INFO_V20.__str__())
print(str(pLAT_DEVICE_INFO_V20.szName, encoding="utf-8"))
print(str(pLAT_DEVICE_INFO_V20.szIndexCode, encoding="utf-8"))
def getCamere():
pLAT_GET_INFO_RSP = PLAT_GET_INFO_RSP()
p_GetCameraInfo_V20 = PLAT_CHANNEL_INFO_V20()
req=PLAT_GET_INFO_REQ()
ret = dll.Plat_VSS_GetCameraInfo_V20(g_iLogHandle, None, None, byref(pLAT_GET_INFO_RSP))
print("Plat_VSS_GetCameraInfo_V20", ret)
print(pLAT_GET_INFO_RSP.__str__())
for i in range(pLAT_GET_INFO_RSP.iTotal):
req.iBeginPos=i
req.iGetNum=1
# print(dll.Plat_GetLastError())
ret = dll.Plat_VSS_GetCameraInfo_V20(g_iLogHandle, byref(p_GetCameraInfo_V20),
byref(req),
addressof(pLAT_GET_INFO_RSP))
print("Plat_VSS_GetCameraInfo_V20", ret)
print(p_GetCameraInfo_V20.__str__())
print(str(p_GetCameraInfo_V20.szChannelName, encoding="utf-8"))
print(str(p_GetCameraInfo_V20.szChannelIndex, encoding="utf-8"))
print(str(p_GetCameraInfo_V20.szStreamUrl, encoding="utf-8"))
if __name__ == '__main__':
a = dll.Plat_Init()
print(a)
g_iLogHandle = dll.Plat_LoginCMS_V20(aaa(b"117.119.97.27"), 85, aaa(b'admin'), aaa(b'hik12345+'), 0, 61618)
print(g_iLogHandle)
if g_iLogHandle != 0:
# print(dll.Plat_GetLastError())
pass
app = QApplication(sys.argv)
w = QWidget()
w.resize(500, 300)
w.move(300, 300)
# print("type",c_int(w.winId())
puiHandle = c_int(11)
d = b"f0d979f821174c8b841d9cff6bcc61dd"
CMPFUNC = CFUNCTYPE(c_void_p, c_long, c_int, c_char_p, c_int, c_void_p)
m_callback = CMPFUNC(getStreamCallback)
# void __stdcall CPreview::CB_PreviewMsgCallback(long handle, void * pUser, int nMsg) {}
CMPFUNC_VM = CFUNCTYPE(c_void_p, c_long, c_void_p, c_int)
pm_callback = CMPFUNC_VM(getPreviewMsgCallback)
print("_callback")
# ret = play_dll.Plat_VSS_PlayVideo_V20(g_iLogHandle, str2pstr(d), c_int(w.winId()), byref(puiHandle), m_callback,
# pm_callback, None)
dll.Plat_VSS_PlayVideo_V20(g_iLogHandle, aaa(d), c_int(w.winId()), byref(puiHandle), m_callback,
pm_callback, None)
getCamere()
w.setWindowTitle('Hello world')
w.show()
sys.exit(app.exec_())
Windows64下通过python调用海康SDK实现登入、预览、抓图、光学变倍、相机激活、区域聚焦、区域曝光功能
python实现的功能如下：
import numpy as np
import os
import ctypes
#获取所有的库文件到一个列表
path = "lib/win64/"
def file_name(file_dir):
pathss=[]
for root, dirs, files in os.walk(file_dir):
for file in files:
pathss.append(path+file)
return pathss
dll_list=file_name(path)
lUserID = 0
lChannel=1
def callCpp(func_name,*args):
for HK_dll in dll_list:
try:
lib = ctypes.cdll.LoadLibrary(HK_dll)
try:
value = eval("lib.%s"%func_name)(*args)
# print("调用的库："+HK_dll)
# print("执行成功,返回值："+str(value))
return value
except:
continue
except:
# print("库文件载入失败："+HK_dll)
continue
# print("没有找到接口！")
return False
# region 登入
#定义登入结构体
class LPNET_DVR_DEVICEINFO_V30(ctypes.Structure):
_fields_ = [
("sSerialNumber", ctypes.c_byte * 48),
("byAlarmInPortNum", ctypes.c_byte),
("byAlarmOutPortNum", ctypes.c_byte),
("byDiskNum", ctypes.c_byte),
("byDVRType", ctypes.c_byte),
("byChanNum", ctypes.c_byte),
("byStartChan", ctypes.c_byte),
("byAudioChanNum", ctypes.c_byte),
("byIPChanNum", ctypes.c_byte),
("byZeroChanNum", ctypes.c_byte),
("byMainProto", ctypes.c_byte),
("bySubProto", ctypes.c_byte),
("bySupport", ctypes.c_byte),
("bySupport1", ctypes.c_byte),
("bySupport2", ctypes.c_byte),
("wDevType", ctypes.c_uint16),
("bySupport3", ctypes.c_byte),
("byMultiStreamProto", ctypes.c_byte),
("byStartDChan", ctypes.c_byte),
("byStartDTalkChan", ctypes.c_byte),
("byHighDChanNum", ctypes.c_byte),
("bySupport4", ctypes.c_byte),
("byLanguageType", ctypes.c_byte),
("byVoiceInChanNum", ctypes.c_byte),
("byStartVoiceInChanNo", ctypes.c_byte),
("byRes3", ctypes.c_byte * 2),
("byMirrorChanNum", ctypes.c_byte),
("wStartMirrorChanNo", ctypes.c_uint16),
("byRes2", ctypes.c_byte * 2)]
#用户注册设备 并登入，需要修改IP,账号、密码
def NET_DVR_Login_V30(sDVRIP = "192.168.1.65",wDVRPort = 8000,sUserName = "admin",sPassword = "guoji123"):
init_res = callCpp("NET_DVR_Init")#SDK初始化
if init_res:
print("SDK初始化成功")
error_info = callCpp("NET_DVR_GetLastError")
else:
error_info = callCpp("NET_DVR_GetLastError")
print("SDK初始化错误：" + str(error_info))
return False
set_overtime = callCpp("NET_DVR_SetConnectTime",5000,4)#设置超时
if set_overtime:
print("设置超时时间成功")
else:
error_info = callCpp("NET_DVR_GetLastError")
print("设置超时错误信息：" + str(error_info))
return False
#用户注册设备
#c++传递进去的是byte型数据，需要转成byte型传进去，否则会乱码
sDVRIP = bytes(sDVRIP,"ascii")
sUserName = bytes(sUserName,"ascii")
sPassword = bytes(sPassword,"ascii")
print( "数据转化成功")
DeviceInfo = LPNET_DVR_DEVICEINFO_V30()
print(DeviceInfo)
lUserID = callCpp("NET_DVR_Login_V30",sDVRIP,wDVRPort,sUserName,sPassword,ctypes.byref(DeviceInfo))
print("登录成功，用户ID："+str(lUserID))
if lUserID == -1:
error_info = callCpp("NET_DVR_GetLastError")
print("登录错误信息：" + str(error_info))
return error_info
else:
return lUserID
# endregion
# region 预览
#定义预览结构体
class NET_DVR_PREVIEWINFO(ctypes.Structure):
_fields_ = [
("lChannel", ctypes.c_long),
("lLinkMode", ctypes.c_long),
("hPlayWnd", ctypes.c_void_p),
("sMultiCastIP", ctypes.c_char_p),
("byProtoType", ctypes.c_byte),
("byRes", ctypes.c_byte * 3)]
# 预览实现
def Preview():
lpPreviewInfo=NET_DVR_PREVIEWINFO()
# hPlayWnd需要输入创建图形窗口的handle,没有输入无法实现BMP抓图
lpPreviewInfo.hPlayWnd=None
lpPreviewInfo.lChannel=1
lpPreviewInfo.dwLinkMode=0
lpPreviewInfo.sMultiCastIP=None
m_lRealHandle=callCpp("NET_DVR_RealPlay_V30",lUserID,ctypes.byref(lpPreviewInfo),None,None,True)
if(m_lRealHandle<0):
error_info = callCpp("NET_DVR_GetLastError")
print("预览失败：" + str(error_info))
else:
print("预览成功")
return m_lRealHandle
# endregion
# # region 抓图
# # BMP抓图预览的时候hPlayWnd显示窗口不能为none
# def Get_BMPPicture():
# sBmpPicFileName = bytes("pytest.bmp", "ascii")
# if(callCpp("NET_DVR_CapturePicture",m_lRealHandle,sBmpPicFileName)==False):
# error_info = callCpp("NET_DVR_GetLastError")
# print("抓图失败：" + str(error_info))
# else:
# print("抓图成功")
#
# 抓图数据结构体
class NET_DVR_JPEGPARA(ctypes.Structure):
_fields_ = [
("wPicSize", ctypes.c_ushort),
("wPicQuality", ctypes.c_ushort)]
# jpeg抓图hPlayWnd显示窗口能为none，存在缺点采集图片速度慢
def Get_JPEGpicture():
sJpegPicFileName = bytes("pytest.jpg", "ascii")
lpJpegPara=NET_DVR_JPEGPARA()
lpJpegPara.wPicSize=0
lpJpegPara.wPicQuality=0
if (callCpp("NET_DVR_CaptureJPEGPicture", lUserID, lChannel, ctypes.byref(lpJpegPara), sJpegPicFileName)== False):
error_info = callCpp("NET_DVR_GetLastError")
print("抓图失败：" + str(error_info))
else:
print("抓图成功")
# endregion
#定义光学变倍结构体
# 光学变倍结构体
class NET_DVR_FOCUSMODE_CFG(ctypes.Structure):
_fields_ = [
("dwSize", ctypes.c_uint32),
("byFocusMode", ctypes.c_byte),
("byAutoFocusMode", ctypes.c_byte),
("wMinFocusDistance", ctypes.c_uint16),
("byZoomSpeedLevel", ctypes.c_byte),
("byFocusSpeedLevel", ctypes.c_byte),
("byOpticalZoom", ctypes.c_byte),
("byDigtitalZoom", ctypes.c_byte),
("fOpticalZoomLevel", ctypes.c_float),
("dwFocusPos", ctypes.c_uint32),
("byFocusDefinitionDisplay", ctypes.c_byte),
("byFocusSensitivity", ctypes.c_byte),
("byRes1", ctypes.c_byte*2),
("dwRelativeFocusPos", ctypes.c_uint32),
("byRes", ctypes.c_byte * 48)]
# 获取光学变倍值
def get_CamZoom():
m_struFocusModeCfg = NET_DVR_FOCUSMODE_CFG()
m_struFocusModeCfg.byRes
dwReturned = ctypes.c_uint16(0)
print(callCpp("NET_DVR_GetDVRConfig"))
if (callCpp("NET_DVR_GetDVRConfig", lUserID, 3305, lChannel, ctypes.byref(m_struFocusModeCfg), 76,
ctypes.byref(dwReturned)) == False):
error_info = callCpp("NET_DVR_GetLastError")
print("光学变倍获取失败：" + str(error_info))
ctypes.ARRAY()
else:
print("光学变倍获取成功")
return m_struFocusModeCfg.fOpticalZoomLevel
# 修改光学变倍值
def Change_CamZoom(zoomScale):
m_struFocusModeCfg=NET_DVR_FOCUSMODE_CFG()
dwReturned=ctypes.c_uint16(0)
print(callCpp("NET_DVR_GetDVRConfig"))
if (callCpp("NET_DVR_GetDVRConfig", lUserID, 3305, lChannel,ctypes.byref(m_struFocusModeCfg),76, ctypes.byref(dwReturned))==False):
error_info = callCpp("NET_DVR_GetLastError")
print("光学变倍获取失败：" + str(error_info))
else:
print("光学变倍获取成功")
print("当前光学变倍值："+str(m_struFocusModeCfg.fOpticalZoomLevel))
m_struFocusModeCfg.fOpticalZoomLevel=zoomScale
if (callCpp("NET_DVR_SetDVRConfig", lUserID, 3306, lChannel, ctypes.byref(m_struFocusModeCfg),76)==False):
error_info = callCpp("NET_DVR_GetLastError")
print("光学变倍修改失败：" + str(error_info))
else:
print("光学变倍修改成功;修改后的数据为："+str(m_struFocusModeCfg.fOpticalZoomLevel))
# 透传接口输入参数结构体
class NET_DVR_XML_CONFIG_INPUT(ctypes.Structure):
_fields_ = [
("dwSize", ctypes.c_uint32),
("lpRequestUrl", ctypes.c_void_p),
("dwRequestUrlLen", ctypes.c_uint32),
("lpInBuffer", ctypes.c_void_p),
("dwInBufferSize", ctypes.c_uint32),
("dwRecvTimeOut", ctypes.c_uint32),
("byForceEncrpt", ctypes.c_byte),
("byRes", ctypes.c_byte*31),]
# 透传接口输出参数结构体
class NET_DVR_XML_CONFIG_OUTPUT(ctypes.Structure):
_fields_ = [
("dwSize", ctypes.c_uint32),
("lpOutBuffer", ctypes.c_void_p),
("dwOutBufferSize", ctypes.c_uint32),
("dwReturnedXMLSize", ctypes.c_uint32),
("lpStatusBuffer", ctypes.c_void_p),
("dwStatusSize", ctypes.c_uint32),
("byRes", ctypes.c_byte*31)]
#区域局部聚焦和局部曝光功能：矩形区域坐标左上角和右下角（startX,startY,endX,endY）
# flag=1局部聚焦功能，flag!=1局部曝光功能
def RegionalCorrection(startX,startY,endX,endY,flag=1):
# #定义传输内容
if(flag==1):
choise="regionalFocus"
else:
choise = "regionalExposure"
inUrl = "PUT /ISAPI/Image/channels/1/" + choise
inPutBuffer = "<" + choise + ">" + str(startX) + " " + str(startY) + " " + str(endX) + " " + str(endY) + "
最新Demo地址：https://download.csdn.net/download/weixin_40851278/10686000