clientdemo.py

playdemo.py

视频效果

前面三篇文章给大家详细讲解了核心的调用过程，以及给出了预览部分的示例代码，大家完全可以举一反三的去增加和扩展更多的海康SDK函数来实现更多的视频监控功能，我在这里就不去干重复的劳动去一一解释SDK了，相信帮助文档会比我带给你们的信息更完整，我将大家带入门即可，任务完成。今天我将我的客户端 ClientDemo 的全部完整代码贴出，你可以直接拷贝去运行，有任何问题，可以在评论区交流，包含3个文件：

hcnetsdk.py

python 与 c++ 结构、函数、变量的转化定义

#Created by marco for conversion structs & parameters from c++ to python. 2020-Aug-06import osfrom ctypes import *from enum import EnumAPP_PATH = os.path.dirname(os.path.abspath(__file__))#It's different from c++, we only need to load library HCNetSDK.dll for Liveview in c++,#The HCPreview.dll will be loaded by program automatically, but this is not happened in python,#We have to load it manually hcnetsdk = cdll.LoadLibrary(APP_PATH + 'HCNetSDK.dll')hcpreview = cdll.LoadLibrary(APP_PATH + 'HCPreview.dll')hcplayback = cdll.LoadLibrary(APP_PATH + 'HCPlayBack.dll')SERIALNO_LEN = 48      #SN lengthclass NET_DVR_DEVICEINFO(Structure):    _fields_ = [("sSerialNumber", c_byte * SERIALNO_LEN),   #SN    ("byAlarmInPortNum", c_byte),                           #DVR Alarm input    ("byAlarmOutPortNum", c_byte),                          #DVR Alarm Output    ("byDiskNum", c_byte),                                  #DVR Number of Hard Disk    ("byDVRType", c_byte),                                  #DVR Type,  1: DVR 2: ATM DVR 3: DVS ......    ("byChanNum", c_byte),                                  #DVR Number of Channel    ("byStartChan", c_byte)                                 #The first Channel No. E.g. DVS- 1, DVR- 1    ]#Preview via software decodingclass NET_DVR_CLIENTINFO(Structure):    _fields_ = [("lChannel", c_long),   #channel no.    ("lLinkMode", c_long),              #If 31st bit is 0,  it means connect main stream,  is 1 means sub stream. Bit 0~bit 30 are used for link mode:  0:  TCP mode,  1:  UDP mode,  2:  Multi- play mode,  3:  RTP mode,4-RTP/RTSP,5-RSTP/HTTP    ("hPlayWnd", c_uint32),             #the play window's handle;  set NULL to disable preview    ("sMultiCastIP", c_char_p),         #Multicast group    ("byProtoType", c_byte),            #0-private protocol,1-RTSP protocol    ("byRes", c_byte * 3)                   ]#Image Qualityclass NET_DVR_JPEGPARA(Structure):    #   0-CIF,           1-QCIF,           2-D1,         3-UXGA(1600x1200), 4-SVGA(800x600),5-HD720p(1280x720),    #   6-VGA,           7-XVGA,           8-HD900p,     9-HD1080,     10-2560*1920,    #   11-1600*304,     12-2048*1536,     13-2448*2048,  14-2448*1200, 15-2448*800,    #   16-XGA(1024*768), 17-SXGA(1280*1024),18-WD1(960*576/960*480),      19-1080i,      20-576*576,    #   21-1536*1536,     22-1920*1920,      23-320*240,    24-720*720,    25-1024*768,    #   26-1280*1280,     27-1600*600,       28-2048*768,   29-160*120,    55-3072*2048,    #   64-3840*2160,     70-2560*1440,      75-336*256,    #   78-384*256,         79-384*216,        80-320*256,    82-320*192,    83-512*384,    #   127-480*272,      128-512*272,       161-288*320,   162-144*176,   163-480*640,    #   164-240*320,      165-120*160,       166-576*720,   167-720*1280,  168-576*960,    #   180-180*240,      181-360*480,       182-540*720,    183-720*960,  184-960*1280,    #   185-1080*1440     215-1080*720(occupied untested),  216-360x640(occupied untested),    #   245-576*704[P]/480*704[N](occupied untested)    #   500-384*288,    #   0xff-Auto(Use resolution of current stream)    _fields_ = [("wPicSize", c_ushort),      ("wPicQuality", c_ushort)             # 0 -  the best,  1 -  better,  2 -  average;    ]#**********************PTZ Commands begin*************************LIGHT_PWRON = 2    # Switch on light WIPER_PWRON = 3    # Switch on Wiper FAN_PWRON = 4    # Switch on Fan HEATER_PWRON = 5 # Switch on Heater AUX_PWRON1 = 6    # Switch on auxiliary equipment 1AUX_PWRON2 = 7    # Switch on auxiliary equipment 2SET_PRESET = 8    # Configure Preset CLE_PRESET = 9    # Clean Preset ZOOM_IN = 11    # Zoom inZOOM_OUT = 12    # Zoom out FOCUS_NEAR = 13  # Focus in FOCUS_FAR = 14  # Focus outIRIS_OPEN = 15  # Iris open IRIS_CLOSE = 16  # Iris close TILT_UP = 21     # PTZ tilt up TILT_DOWN = 22   # PTZ tilt downPAN_LEFT = 23    # PTZ pan left PAN_RIGHT = 24   # PTZ pan rightUP_LEFT = 25     # PTZ turn up and left UP_RIGHT = 26    # PTZ turn up and right DOWN_LEFT = 27   # PTZ turn down and left DOWN_RIGHT = 28  # PTZ turn down and right PAN_AUTO = 29    # PTZ auto pan FILL_PRE_SEQ = 30    # Add preset to sequence SET_SEQ_DWELL = 31   # Set cruise point's residence time SET_SEQ_SPEED = 32   # Set cruise point CLE_PRE_SEQ = 33     # Delete preset from sequence STA_MEM_CRUISE = 34  # Start recording trace STO_MEM_CRUISE = 35  # Stop recoding trace  RUN_CRUISE = 36      # Start Cruise RUN_SEQ = 37         # Start Sequence STOP_SEQ = 38        # Stop Sequence GOTO_PRESET = 39     # Go to preset DEL_SEQ = 43         # delete cruise pathSTOP_CRUISE = 44     # stop cruiseDELETE_CRUISE = 45   # delete cruiseDELETE_ALL_CRUISE = 46   # delete all cruisePAN_CIRCLE = 50  # PTZ of the SS speed automatic circle scanningDRAG_PTZ = 51    # PTZ dragLINEAR_SCAN = 52  # Area scanning 2014-03-15 CLE_ALL_PRESET = 53   # Clean All Preset CLE_ALL_SEQ = 54   # Clean All Seq CLE_ALL_CRUISE = 55   # Clean All Cruise POPUP_MENU = 56 # Operation  Menu TILT_DOWN_ZOOM_IN = 58    # PTZ tilt down & Zoom in TILT_DOWN_ZOOM_OUT = 59  # PTZ tilt down & Zoom out PAN_LEFT_ZOOM_IN = 60  # PTZ pan left & Zoom inPAN_LEFT_ZOOM_OUT = 61  # PTZ pan left & Zoom outPAN_RIGHT_ZOOM_IN = 62  # PTZ pan right & Zoom inPAN_RIGHT_ZOOM_OUT = 63  # PTZ pan right & Zoom out UP_LEFT_ZOOM_IN = 64  # PTZ turn up and left & Zoom inUP_LEFT_ZOOM_OUT = 65  # PTZ turn up and left & Zoom OutUP_RIGHT_ZOOM_IN = 66  # PTZ turn up and right & Zoom inUP_RIGHT_ZOOM_OUT = 67  # PTZ turn up and right & Zoom OutDOWN_LEFT_ZOOM_IN = 68  # PTZ turn down and left & Zoom in DOWN_LEFT_ZOOM_OUT = 69  # PTZ turn down and left & Zoom Out DOWN_RIGHT_ZOOM_IN = 70  # PTZ turn down and right & Zoom in DOWN_RIGHT_ZOOM_OUT = 71  # PTZ turn down and right & Zoom Out TILT_UP_ZOOM_IN = 72    # PTZ tilt up & Zoom in TILT_UP_ZOOM_OUT = 73    # PTZ tilt up & Zoom out DVR_VEHICLE_CONTROL_LIST = 0x1 #Vehicle black and white list data type (data type) 2013-11-04#**********************PTZ Commands end*************************#Time correction structureclass NET_DVR_TIME(Structure):    _fields_ = [("dwYear", c_uint32),      ("dwMonth", c_uint32),                 ("dwDay", c_uint32),       ("dwHour", c_uint32),       ("dwMinute", c_uint32),             ("dwSecond", c_uint32),                ]#Record Parametersclass NET_DVR_FIND_DATA(Structure):    _fields_ = [("sFileName", c_char * 100),  #File Name    ("struStartTime", NET_DVR_TIME),          #Start time of the file               ("struStopTime", NET_DVR_TIME),           #End time of the file        ("dwFileSize", c_uint32)                  #File size    ]#*******************Return Value of File&Log Query API*************************/NET_DVR_FILE_SUCCESS = 1000    #Get log informationNET_DVR_FILE_NOFIND = 1001     #No logNET_DVR_ISFINDING = 1002       #On searchingNET_DVR_NOMOREFILE = 1003      #No more filesNET_DVR_FILE_EXCEPTION = 1004  #Error on log query#*************************************************#Play Control Commands#Macro Definition#NET_DVR_PlayBackControl#NET_DVR_PlayControlLocDisplay#NET_DVR_DecPlayBackCtrl#**************************************************NET_DVR_PLAYSTART = 1  # Start PlayNET_DVR_PLAYSTOP = 2  # Stop PlayNET_DVR_PLAYPAUSE = 3  # Pause PlayNET_DVR_PLAYRESTART = 4  # Restore PlayNET_DVR_PLAYFAST = 5  # Play fasterNET_DVR_PLAYSLOW = 6  # Play slowerNET_DVR_PLAYNORMAL = 7  # Normal SpeedNET_DVR_PLAYFRAME = 8  # Play frame by frameNET_DVR_PLAYSTARTAUDIO = 9  # Open audioNET_DVR_PLAYSTOPAUDIO = 10 # Close audioNET_DVR_PLAYAUDIOVOLUME = 11 # Adjust volume NET_DVR_PLAYSETPOS = 12 # Change the playback progress NET_DVR_PLAYGETPOS = 13 # Get the playback progressNET_DVR_PLAYGETTIME = 14 # Get the played time (available when playback by time) NET_DVR_PLAYGETFRAME = 15 # Get the played frame number (available when playback by file) NET_DVR_GETTOTALFRAMES = 16 # Get total frame number of current file (available when playback by file) NET_DVR_GETTOTALTIME = 17 # Get total time of current file (available when playback by file) NET_DVR_THROWBFRAME = 20 # Discard B frameNET_DVR_SETSPEED = 24 # Setup stream speedNET_DVR_KEEPALIVE = 25 # Keep connection with server (if callback is blocked,  send it every 2 second) NET_DVR_PLAYSETTIME = 26 # Set playback position according to absolute time NET_DVR_PLAYGETTOTALLEN = 27 # Get total time length of all the detected files under playback by time modeNET_DVR_PLAYSETTIME_V50 = 28 #Set playback position according to absolute time (support time zone)NET_DVR_PLAY_FORWARD = 29 #change stream from reverse to forwardNET_DVR_PLAY_REVERSE = 30 #change stream from froward to reverseNET_DVR_SET_DECODEFFRAMETYPE = 31 #Set decode frame typeNET_DVR_SET_TRANS_TYPE = 32   #Set Transcodeing Type NET_DVR_PLAY_CONVERT = 33 #playback decodeNET_DVR_START_DRAWFRAME = 34 #start draw I Frame NET_DVR_STOP_DRAWFRAME = 35 #stop draw I FrameNET_DVR_CHANGEWNDRESOLUTION = 36 #change wnd sizeNET_DVR_RESETBUFFER= 37 #reset matrix decode buffer(remote playback file)NET_DVR_VOD_DRAG_ING = 38 #playback in drag NET_DVR_VOD_DRAG_END = 39 #end of the playback drag NET_DVR_VOD_RESET_PLAYTIME = 40 #reset playback timeclass DWORD(Structure):    _fields_ = [("value", c_uint32)]class HCNetSDK:    def NET_DVR_Init(self):        return hcnetsdk.NET_DVR_Init()    def NET_DVR_SetReconnect(self, dwInterval=30000, bEnableRecon=True):        return hcnetsdk.NET_DVR_SetReconnect(dwInterval, bEnableRecon)    def NET_DVR_Login(self, sDVRIP, wDVRPort, sUserName, sPassword):        di = NET_DVR_DEVICEINFO()        pdi = byref(di)        return hcnetsdk.NET_DVR_Login(str.encode(sDVRIP), wDVRPort, str.encode(sUserName), str.encode(sPassword), pdi)    def NET_DVR_Logout(self, lUserID):        return hcnetsdk.NET_DVR_Logout(lUserID)    def NET_DVR_Cleanup(self):        return hcnetsdk.NET_DVR_Cleanup()      def NET_DVR_RealPlay(self, lUserID, lChannel, hPlayWnd):        ci = NET_DVR_CLIENTINFO()        ci.lChannel = lChannel        ci.hPlayWnd = hPlayWnd        pci = byref(ci)        return hcnetsdk.NET_DVR_RealPlay(lUserID, pci)    def NET_DVR_StopRealPlay(self, lRealHandle):        return hcnetsdk.NET_DVR_StopRealPlay(lRealHandle)    def NET_DVR_GetLastError(self):        return hcnetsdk.NET_DVR_GetLastError()    def NET_DVR_GetSDKVersion(self):        return hcnetsdk.NET_DVR_GetSDKVersion()    def NET_DVR_GetSDKBuildVersion(self):        return hcnetsdk.NET_DVR_GetSDKBuildVersion()    def NET_DVR_CapturePicture(self, lRealHandle, sPicFileName):        return hcnetsdk.NET_DVR_CapturePicture(lRealHandle, str.encode(sPicFileName))    def NET_DVR_CaptureJPEGPicture(self, lUserID, lChannel, sPicFileName):        jpeg = NET_DVR_JPEGPARA()        pjpeg = byref(jpeg)        return hcnetsdk.NET_DVR_CaptureJPEGPicture(lUserID, lChannel, pjpeg, str.encode(sPicFileName))    def NET_DVR_PTZControl(self, lRealHandle, dwPTZCommand, dwStop):        return hcnetsdk.NET_DVR_PTZControl(lRealHandle, dwPTZCommand, dwStop)    def NET_DVR_PTZPreset(self, lRealHandle, dwPTZPresetCmd, dwPresetIndex):        return hcnetsdk.NET_DVR_PTZPreset(lRealHandle, dwPTZPresetCmd, dwPresetIndex)    def NET_DVR_FindFile(self, lUserID, lChannel, net_dvr_time_from, net_dvr_time_to):        pfrom = byref(net_dvr_time_from)        pto =  byref(net_dvr_time_to)        return hcnetsdk.NET_DVR_FindFile(lUserID, lChannel, 0xff, pfrom, pto)    def NET_DVR_FindNextFile(self, lFindHandle, net_dvr_find_data):        pfind = byref(net_dvr_find_data)        return hcnetsdk.NET_DVR_FindNextFile(lFindHandle, pfind)        def NET_DVR_FindClose(self, lFindHandle):        return hcnetsdk.NET_DVR_FindClose(lFindHandle)    def NET_DVR_PlayBackByName(self, lUserID, sPlayBackFileName, hWnd):        return hcnetsdk.NET_DVR_PlayBackByName(lUserID, str.encode(sPlayBackFileName), c_uint32(hWnd))    def NET_DVR_PlayBackControl(self, lPlayHandle, dwControlCode, dwInValue, OutValue):        dw = DWORD()        pdw = byref(dw)        ret = hcnetsdk.NET_DVR_PlayBackControl(lPlayHandle, dwControlCode, dwInValue, pdw)        OutValue['value'] = dw.value        return ret    def NET_DVR_StopPlayBack(self, lPlayHandle):        return hcnetsdk.NET_DVR_StopPlayBack(lPlayHandle)    def NET_DVR_GetFileByName(self, lUserID, sDVRFileName, sSavedFileName):        return hcnetsdk.NET_DVR_GetFileByName(lUserID, str.encode(sDVRFileName), str.encode(sSavedFileName))    def NET_DVR_StopGetFile(self, lFileHandle):        return hcnetsdk.NET_DVR_StopGetFile(lFileHandle)    def NET_DVR_GetDownloadPos(self, lFileHandle):        return hcnetsdk.NET_DVR_GetDownloadPos(lFileHandle)    def NET_DVR_PlayBackCaptureFile(self, lPlayHandle, sFileName):        return hcnetsdk.NET_DVR_PlayBackCaptureFile(lPlayHandle, str.encode(sFileName))        def NET_DVR_ClientGetVideoEffect(self, lRealHandle, OutParams):        BrightValue = DWORD()        ContrastValue = DWORD()        SaturationValue = DWORD()        HueValue = DWORD()        pBrightValue = byref(BrightValue)        pContrastValue = byref(ContrastValue)        pSaturationValue = byref(SaturationValue)           pHueValue = byref(HueValue)            ret = hcnetsdk.NET_DVR_ClientGetVideoEffect(lRealHandle, pBrightValue, pContrastValue, pSaturationValue, pHueValue)        OutParams['Bright'] = BrightValue.value        OutParams['Contrast'] = ContrastValue.value        OutParams['Saturation'] = SaturationValue.value        OutParams['Hue'] = HueValue.value        return ret    def NET_DVR_ClientSetVideoEffect(self, lRealHandle, dwBrightValue, dwContrastValue, dwSaturationValue, dwHueValue):        return hcnetsdk.NET_DVR_ClientSetVideoEffect(lRealHandle, dwBrightValue, dwContrastValue, dwSaturationValue, dwHueValue)

clientdemo.py

实现图像预览、抓图、云台控制等等功能的 Demo 客户端

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *from hcnetsdk import *import pickleimport datetimeclass PTZUp(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, TILT_UP, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, TILT_UP, 1)        event.accept()class PTZDown(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, TILT_DOWN, 0)        else:            self.parent.text('You have to open live first')                event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, TILT_DOWN, 1)        event.accept()class PTZLeft(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, PAN_LEFT, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, PAN_LEFT, 1)        event.accept()class PTZRight(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, PAN_RIGHT, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, PAN_RIGHT, 1)        event.accept()class PTZZoomIn(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, ZOOM_IN, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, ZOOM_IN, 1)        event.accept()class PTZZoomOut(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, ZOOM_OUT, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, ZOOM_OUT, 1)        event.accept()class PTZFocusNear(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, FOCUS_NEAR, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, FOCUS_NEAR, 1)        event.accept()class PTZFocusFar(QPushButton):    def __init__(self, text, parent):        self.parent = parent        super().__init__(text, parent)    def mousePressEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, FOCUS_FAR, 0)        else:            self.parent.text('You have to open live first')        event.accept()            def mouseReleaseEvent(self, event):        if -1 != self.parent.lRealHandle:            self.parent.sdk.NET_DVR_PTZControl(self.parent.lRealHandle, FOCUS_FAR, 1)        event.accept()class ClientDemo(QWidget):    def __init__(self):        super().__init__()        #Init SDK        self.sdk = HCNetSDK()        self.sdk.NET_DVR_Init()        self.sdk.NET_DVR_SetReconnect()        self.lUserID = -1        self.lRealHandle = -1        #Dialog        self.resize(1300, 850)        self.setWindowTitle('ClientDemo')        #Layout        self.hbl = QHBoxLayout()        self.hbl2 = QHBoxLayout()        self.hbl3 = QHBoxLayout()        self.hbl4 = QHBoxLayout()        self.vbl = QVBoxLayout()        self.vbl.addLayout(self.hbl)        self.vbl.addLayout(self.hbl2)        self.vbl.addLayout(self.hbl3)        self.vbl.addLayout(self.hbl4)        self.setLayout(self.vbl)        #Login Infomation        self.lbIP = QLabel('IP')        self.eIP = QLineEdit()        self.lbPort = QLabel('Port')        self.ePort = QLineEdit()        self.lbUser = QLabel('User')        self.eUser = QLineEdit()        self.lbPassword = QLabel('Password')        self.ePassword = QLineEdit()        self.ePassword.setEchoMode(QLineEdit.Password)        self.lbChannel = QLabel('Channel')        self.eChannel = QLineEdit()        self.hbl.addWidget(self.lbIP)        self.hbl.addWidget(self.eIP)        self.hbl.addWidget(self.lbPort)        self.hbl.addWidget(self.ePort)        self.hbl.addWidget(self.lbUser)        self.hbl.addWidget(self.eUser)        self.hbl.addWidget(self.lbPassword)        self.hbl.addWidget(self.ePassword)        self.hbl.addWidget(self.lbChannel)        self.hbl.addWidget(self.eChannel)                #Button        self.btnVersion = QPushButton('Version')        self.btnVersion.clicked.connect(self.onVersion)        self.hbl2.addWidget(self.btnVersion)        self.btnLogin = QPushButton('Login')        self.btnLogin.clicked.connect(self.onLogin)        self.hbl2.addWidget(self.btnLogin)        self.btnLogout = QPushButton('Logout')        self.btnLogout.clicked.connect(self.onLogout)        self.hbl2.addWidget(self.btnLogout)        self.btnLive = QPushButton('Live')        self.btnLive.clicked.connect(self.onLive)        self.hbl2.addWidget(self.btnLive)        self.btnCloseLive = QPushButton('Close Live')        self.btnCloseLive.clicked.connect(self.onCloseLive)        self.hbl2.addWidget(self.btnCloseLive)        self.btnCapture = QPushButton('Capture')        self.btnCapture.clicked.connect(self.onCapture)        self.hbl2.addWidget(self.btnCapture)        self.btnCaptureWithoutLive = QPushButton('Capture Without Live')        self.btnCaptureWithoutLive.clicked.connect(self.onCaptureWithoutLive)        self.hbl2.addWidget(self.btnCaptureWithoutLive)        #PTZ Button        self.btnPtzUp = PTZUp('Up', self)        self.hbl3.addWidget(self.btnPtzUp)        self.btnPtzDown = PTZDown('Down', self)        self.hbl3.addWidget(self.btnPtzDown)        self.btnPtzLeft = PTZLeft('Left', self)        self.hbl3.addWidget(self.btnPtzLeft)        self.btnPtzRight = PTZRight('Right', self)        self.hbl3.addWidget(self.btnPtzRight)        self.btnPtzZoomIn = PTZZoomIn('Zoom In', self)        self.hbl3.addWidget(self.btnPtzZoomIn)        self.btnPtzZoomOut = PTZZoomOut('Zoom Out', self)        self.hbl3.addWidget(self.btnPtzZoomOut)        self.btnPtzFocusNear = PTZFocusNear('Focus Near', self)        self.hbl3.addWidget(self.btnPtzFocusNear)        self.btnPtzFocusFar = PTZFocusFar('Focus Far', self)        self.hbl3.addWidget(self.btnPtzFocusFar)        #Video Params        self.btnGetVideoParams = QPushButton('Video Params')        self.btnGetVideoParams.clicked.connect(self.onGetVideoParams)        self.hbl4.addWidget(self.btnGetVideoParams)        self.lbBright = QLabel('Bright')        self.hbl4.addWidget(self.lbBright)        self.eBright = QLineEdit()        self.hbl4.addWidget(self.eBright)        self.lbContrast = QLabel('Contrast')        self.hbl4.addWidget(self.lbContrast)        self.eContrast = QLineEdit()        self.hbl4.addWidget(self.eContrast)        self.lbSaturation = QLabel('Saturation')        self.hbl4.addWidget(self.lbSaturation)        self.eSaturation = QLineEdit()        self.hbl4.addWidget(self.eSaturation)        self.lbHue = QLabel('Hue')        self.hbl4.addWidget(self.lbHue)        self.eHue = QLineEdit()        self.hbl4.addWidget(self.eHue)          self.btnSetVideoParams = QPushButton('Set Video Params')        self.btnSetVideoParams.clicked.connect(self.onSetVideoParams)        self.hbl4.addWidget(self.btnSetVideoParams)        #Screen        self.Screen = QTextEdit()        self.vbl.addWidget(self.Screen)        #Load Config        self.LoadConfig()    def text(self, info):        self.Screen.setText(info)    def closeEvent(self, event):        self.SaveConfig()        event.accept()        def checkLoginInfo(self):        ip = self.eIP.text()        port = self.ePort.text()        user = self.eUser.text()        password = self.ePassword.text()        if '' == ip or '' == port or '' == user or '' == password:            return False        if not port.isdigit():            return False        return True    def checkChannelInfo(self):        channel = self.eChannel.text()        if '' == channel or not channel.isdigit():            return False        return True    def checkVideoParams(self):        bright = self.eBright.text()        contrast = self.eContrast.text()        saturation = self.eSaturation.text()        hue = self.eHue.text()        if '' == bright or not bright.isdigit():            return False        if '' == contrast or not contrast.isdigit():            return False        if '' == saturation or not saturation.isdigit():            return False        if '' == hue or not hue.isdigit():            return False          return True          def SaveConfig(self):        if self.checkLoginInfo() and self.checkLoginInfo():            ip = self.eIP.text()            port = self.ePort.text()            user = self.eUser.text()            password = self.ePassword.text()            channel = self.eChannel.text()            di = dict(ip=ip, port=port, user=user, password=password, channel=channel)            path = APP_PATH + 'clientdemo.conf'            with open(path, 'wb') as f:                pickle.dump(di, f)    def LoadConfig(self):        try:            path = APP_PATH + 'clientdemo.conf'            with open(path, 'rb') as f:                di = pickle.load(f)                self.eIP.setText(di['ip'])                self.ePort.setText(di['port'])                self.eUser.setText(di['user'])                self.ePassword.setText(di['password'])                self.eChannel.setText(di['channel'])        except Exception as e:            print(str(e))    def onVersion(self):        self.Screen.clear()        ver = hex(self.sdk.NET_DVR_GetSDKVersion())        build = hex(self.sdk.NET_DVR_GetSDKBuildVersion())        self.text('SDK Version: ' + str(ver) + '' + 'Build Version: ' + str(build))    def onLogin(self):        if -1 == self.lUserID:            if self.checkLoginInfo():                self.lUserID = self.sdk.NET_DVR_Login(self.eIP.text(), int(self.ePort.text()), self.eUser.text(), self.ePassword.text())                if -1 != self.lUserID:                    self.text('Login was successful')                else:                    self.text('Login was failed, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters before login')        else:            self.text('You have already logined')    def onLogout(self):        if -1 != self.lUserID:            self.sdk.NET_DVR_Logout(self.lUserID)            self.lUserID = -1            self.text('Logout was successful')        else:            self.text('Now you are in logout status')    def onLive(self):        if -1 != self.lUserID:            if self.checkChannelInfo():                if -1 != self.lRealHandle:                    self.sdk.NET_DVR_StopRealPlay(self.lRealHandle)                    self.lRealHandle = -1                self.lRealHandle = self.sdk.NET_DVR_RealPlay(self.lUserID, int(self.eChannel.text()), self.Screen.winId())                if -1 != self.lRealHandle:                    self.text('Live was successful')                else:                    self.text('Live was failed, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters before live')        else:            self.text('You have to login first')    def onCloseLive(self):        if -1 != self.lRealHandle:            self.sdk.NET_DVR_StopRealPlay(self.lRealHandle)            self.lRealHandle = -1            self.Screen.clear()            self.text('Live closed')        else:            self.text('No any live opened')    def onCapture(self):        if -1 != self.lRealHandle:            dt = datetime.datetime.now()            path = APP_PATH + 'snapshot_' + str(dt.date()) + '_' + str(dt.hour) + '_' + str(dt.minute) + '_' + str(dt.second) + '.jpg'            if self.sdk.NET_DVR_CapturePicture(self.lRealHandle, path):                self.text('Picture stored to ' + path)            else:                self.text('Failed to capture picture, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))        else:            self.text('You have to open live first')    def onCaptureWithoutLive(self):        if -1 != self.lUserID:            dt = datetime.datetime.now()            path = APP_PATH + 'snapshot_' + str(dt.date()) + '_' + str(dt.hour) + '_' + str(dt.minute) + '_' + str(dt.second) + '.jpg'            if self.checkChannelInfo():                if self.sdk.NET_DVR_CaptureJPEGPicture(self.lUserID, int(self.eChannel.text()), path):                    self.text('Picture stored to ' + path)                else:                    self.text('Failed to capture picture, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters')        else:            self.text('You have to login first')    def onGetVideoParams(self):        if -1 != self.lRealHandle:            params = {}            if self.sdk.NET_DVR_ClientGetVideoEffect(self.lRealHandle, params):                self.eBright.setText(str(params['Bright']))                self.eContrast.setText(str(params['Contrast']))                self.eSaturation.setText(str(params['Saturation']))                self.eHue.setText(str(params['Hue']))                self.text('Succeed to get video params')            else:                self.text('Failed to get video params, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))        else:            self.text('You have to open live first')    def onSetVideoParams(self):        if -1 != self.lRealHandle:            if self.checkVideoParams():                bright = int(self.eBright.text())                contrast = int(self.eContrast.text())                saturation = int(self.eSaturation.text())                hue = int(self.eHue.text())                if self.sdk.NET_DVR_ClientSetVideoEffect(self.lRealHandle, bright, contrast, saturation, hue):                    self.text('Succeed to set video params')                else:                    self.text('Failed to set video params, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters')        else:            self.text('You have to open live first')app = QApplication(sys.argv)dlg = ClientDemo()dlg.show()sys.exit(app.exec_())

playdemo.py

实现录像回放、回放抓图、回放控制、录像下载等功能的 Demo 客户端

import sysfrom PyQt5.QtWidgets import *from PyQt5.QtCore import *from PyQt5.QtGui import *from hcnetsdk import *import pickleimport datetimeimport timeclass PlayDemo(QWidget):    def __init__(self):        super().__init__()        #Init SDK        self.sdk = HCNetSDK()        self.sdk.NET_DVR_Init()        self.sdk.NET_DVR_SetReconnect(30000, True)        self.lUserID = -1        self.lPlayHandle = -1        #Dialog        self.resize(1100, 600)        self.setWindowTitle('PlayDemo')        #Layout        self.hbl = QHBoxLayout()        self.hbl2 = QHBoxLayout()        self.hbl3 = QHBoxLayout()        self.hbl4 = QHBoxLayout()                self.vbl = QVBoxLayout()        self.vbl.addLayout(self.hbl)        self.vbl.addLayout(self.hbl2)        self.vbl.addLayout(self.hbl3)        self.vbl.addLayout(self.hbl4)        self.setLayout(self.vbl)        #Login Infomation        self.lbIP = QLabel('IP')        self.eIP = QLineEdit()        self.lbPort = QLabel('Port')        self.ePort = QLineEdit()        self.lbUser = QLabel('User')        self.eUser = QLineEdit()        self.lbPassword = QLabel('Password')        self.ePassword = QLineEdit()        self.ePassword.setEchoMode(QLineEdit.Password)        self.lbChannel = QLabel('Channel')        self.eChannel = QLineEdit()        self.hbl.addWidget(self.lbIP)        self.hbl.addWidget(self.eIP)        self.hbl.addWidget(self.lbPort)        self.hbl.addWidget(self.ePort)        self.hbl.addWidget(self.lbUser)        self.hbl.addWidget(self.eUser)        self.hbl.addWidget(self.lbPassword)        self.hbl.addWidget(self.ePassword)        self.hbl.addWidget(self.lbChannel)        self.hbl.addWidget(self.eChannel)             #Login        self.btnLogin = QPushButton('Login')        self.btnLogin.clicked.connect(self.onLogin)        self.hbl2.addWidget(self.btnLogin)        self.btnLogout = QPushButton('Logout')        self.btnLogout.clicked.connect(self.onLogout)        self.hbl2.addWidget(self.btnLogout)        #Datetime        self.lbFrom = QLabel('From')        self.hbl2.addWidget(self.lbFrom)        di = QDateTime.currentDateTime()        ts = di.toTime_t()        ts -= 86400        di = di.fromTime_t(ts)        self.btnFromDatetime = QDateTimeEdit(di)        #self.btnFromDatetime.resize(self.btnFromDatetime.height(), 25)        self.hbl2.addWidget(self.btnFromDatetime)        self.lbTo = QLabel('To')        self.hbl2.addWidget(self.lbTo)        self.btnToDatetime = QDateTimeEdit(QDateTime.currentDateTime())        #self.btnToDatetime.resize(self.btnToDatetime.height(), 25)                self.hbl2.addWidget(self.btnToDatetime)        #Search Record Files        self.btnRecords = QPushButton('Records')        self.btnRecords.clicked.connect(self.onRecords)        self.hbl2.addWidget(self.btnRecords)        #Play File Name        self.lbPlayFile = QLabel('Play File Name')        self.hbl3.addWidget(self.lbPlayFile)        self.ePlayFile = QLineEdit()        self.hbl3.addWidget(self.ePlayFile)        #Download Record File        self.btnDownload = QPushButton('Download')        self.btnDownload.clicked.connect(self.onDownload)        self.hbl4.addWidget(self.btnDownload)        #Playback        self.btnPlay = QPushButton('Play')        self.btnPlay.clicked.connect(self.onPlay)        self.hbl4.addWidget(self.btnPlay)        self.btnStop = QPushButton('Stop')        self.btnStop.clicked.connect(self.onStop)        self.hbl4.addWidget(self.btnStop)        self.btnBack = QPushButton('Back')        self.btnBack.clicked.connect(self.onBack)        self.hbl4.addWidget(self.btnBack)        self.btnForward = QPushButton('Forward')        self.btnForward.clicked.connect(self.onForward)        self.hbl4.addWidget(self.btnForward)        self.btnPause = QPushButton('Pause')        self.btnPause.clicked.connect(self.onPause)        self.hbl4.addWidget(self.btnPause)        self.pause = False        self.btnCapture = QPushButton('Capture')        self.btnCapture.clicked.connect(self.onCapture)        self.hbl4.addWidget(self.btnCapture)        #Screen        self.Screen = QTextEdit()        self.vbl.addWidget(self.Screen)        #Load Config        self.LoadConfig()    def text(self, info):        self.Screen.setText(info)            def closeEvent(self, event):        self.SaveConfig()        event.accept()        def checkLoginInfo(self):        ip = self.eIP.text()        port = self.ePort.text()        user = self.eUser.text()        password = self.ePassword.text()        if '' == ip or '' == port or '' == user or '' == password:            return False        if not port.isdigit():            return False        return True    def checkChannelInfo(self):        channel = self.eChannel.text()        if '' == channel or not channel.isdigit():            return False        return True    def checkPlayFile(self):        filename = self.ePlayFile.text()        if '' == filename:            return False        return True    def SaveConfig(self):        if self.checkLoginInfo() and self.checkLoginInfo():            ip = self.eIP.text()            port = self.ePort.text()            user = self.eUser.text()            password = self.ePassword.text()            channel = self.eChannel.text()            di = dict(ip=ip, port=port, user=user, password=password, channel=channel)            path = APP_PATH + 'playdemo.conf'            with open(path, 'wb') as f:                pickle.dump(di, f)    def LoadConfig(self):        try:            path = APP_PATH + 'playdemo.conf'            with open(path, 'rb') as f:                di = pickle.load(f)                self.eIP.setText(di['ip'])                self.ePort.setText(di['port'])                self.eUser.setText(di['user'])                self.ePassword.setText(di['password'])                self.eChannel.setText(di['channel'])        except Exception as e:            print(str(e))    def onLogin(self):        if -1 == self.lUserID:            if self.checkLoginInfo():                self.lUserID = self.sdk.NET_DVR_Login(self.eIP.text(), int(self.ePort.text()), self.eUser.text(), self.ePassword.text())                if -1 != self.lUserID:                    self.text('Login was successful')                else:                    self.text('Login was failed, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters before login')        else:            self.text('You have already logined')    def onLogout(self):        if -1 != self.lUserID:            self.sdk.NET_DVR_Logout(self.lUserID)            self.lUserID = -1            self.text('Logout was successful')        else:            self.text('Now you are in logout status')    def onRecords(self):        if -1 != self.lUserID:            if self.checkChannelInfo():                fromDatetime = NET_DVR_TIME()                toDatetime = NET_DVR_TIME()                fromDatetime.dwYear = self.btnFromDatetime.date().year()                fromDatetime.dwMonth = self.btnFromDatetime.date().month()                fromDatetime.dwDay = self.btnFromDatetime.date().day()                fromDatetime.dwHour = self.btnFromDatetime.time().hour()                fromDatetime.dwMinute = self.btnFromDatetime.time().minute()                fromDatetime.dwSecond = self.btnFromDatetime.time().second()                toDatetime.dwYear = self.btnToDatetime.date().year()                toDatetime.dwMonth = self.btnToDatetime.date().month()                toDatetime.dwDay = self.btnToDatetime.date().day()                toDatetime.dwHour = self.btnToDatetime.time().hour()                toDatetime.dwMinute = self.btnToDatetime.time().minute()                toDatetime.dwSecond = self.btnToDatetime.time().second()                lFindHandle = self.sdk.NET_DVR_FindFile(self.lUserID, int(self.eChannel.text()), fromDatetime, toDatetime)                records = ''                if -1 != lFindHandle:                    while True:                        data = NET_DVR_FIND_DATA()                        ret = self.sdk.NET_DVR_FindNextFile(lFindHandle, data)                        if NET_DVR_ISFINDING == ret:                            time.sleep(0.2)                            continue                        elif NET_DVR_FILE_SUCCESS == ret:                            records += 'File Name: ' + bytes.decode(data.sFileName)                            records += ' File Size: ' + str(data.dwFileSize)                            records += ' From: ' + str(data.struStartTime.dwYear) + '-' + str(data.struStartTime.dwMonth) + '-' + str(data.struStartTime.dwDay) + '-' + str(data.struStartTime.dwHour) + '_' + str(data.struStartTime.dwMinute) + '_' + str(data.struStartTime.dwSecond)                            records += ' To: ' + str(data.struStopTime.dwYear) + '-' + str(data.struStopTime.dwMonth) + '-' + str(data.struStopTime.dwDay) + '-' + str(data.struStopTime.dwHour) + '_' + str(data.struStopTime.dwMinute) + '_' + str(data.struStopTime.dwSecond)                            records += ''                        elif NET_DVR_FILE_NOFIND == ret:                            break                        elif NET_DVR_NOMOREFILE == ret:                            break                        else:                            break                    self.sdk.NET_DVR_FindClose(lFindHandle)                    self.Screen.setText(records)                else:                   self.text('Search files failed, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))             else:                self.text('Please input the correct parameters')        else:            self.text('You have to login first')    def onDownload(self):        if -1 != self.lUserID:            if self.checkPlayFile():                dt = datetime.datetime.now()                path = APP_PATH + '' + self.ePlayFile.text() + '_' + str(dt.date()) + '_' + str(dt.hour) + '_' + str(dt.minute) + '_' + str(dt.second) + '.mp4'                self.lFileHandle = self.sdk.NET_DVR_GetFileByName(self.lUserID, self.ePlayFile.text(), path)                if -1 != self.lFileHandle:                    OutValue = {}                    self.sdk.NET_DVR_PlayBackControl(self.lFileHandle, NET_DVR_PLAYSTART, 0, OutValue)                    pos = self.sdk.NET_DVR_GetDownloadPos(self.lFileHandle)                    if -1 != pos:                        while True:                            pos = self.sdk.NET_DVR_GetDownloadPos(self.lFileHandle)                            print('Downloading ... ' + str(pos) + '%')                            if pos >= 100:                                break                            time.sleep(1)                    self.sdk.NET_DVR_StopGetFile(self.lFileHandle)                    self.lFileHandle = -1                   else:                    self.text('Failed to download, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters in Play-File-Name box, refer the result after you clicked the Records button')        else:            self.text('You have to login first')    def onPlay(self):        if -1 != self.lUserID:            if self.checkPlayFile():                self.lPlayHandle = self.sdk.NET_DVR_PlayBackByName(self.lUserID, self.ePlayFile.text(), self.Screen.winId())                if -1 != self.lPlayHandle:                    OutValue = {}                    if self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYSTART, 0, OutValue):                        self.text('Playing ...')                    else:                        self.text('Failed to play, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))                else:                    self.text('Failed to play, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))            else:                self.text('Please input the correct parameters in Play-File-Name box, refer the result after you clicked the Records button')        else:            self.text('You have to login first')        def onStop(self):        if -1 != self.lPlayHandle:            self.sdk.NET_DVR_StopPlayBack(self.lPlayHandle)            self.lPlayHandle = -1            self.Screen.clear()            self.text('Stopped')        else:            self.text('Now you are in stop status')    def onBack(self):        if -1 != self.lPlayHandle:            OutValue = {}            self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYGETPOS, 0, OutValue)            dwInValue = OutValue['value'] - 1            self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYSETPOS, dwInValue, OutValue)        else:            self.text('You have to play video first')    def onForward(self):        if -1 != self.lPlayHandle:            OutValue = {}            self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYGETPOS, 0, OutValue)            dwInValue = OutValue['value'] + 1            self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYSETPOS, dwInValue, OutValue)        else:           self.text('You have to play video first')    def onPause(self):        if -1 != self.lPlayHandle:            OutValue = {}            if self.pause:                self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYRESTART, 0, OutValue)                self.pause = False            else:                self.sdk.NET_DVR_PlayBackControl(self.lPlayHandle, NET_DVR_PLAYPAUSE, 0, OutValue)                self.pause = True        else:            self.text('You have to play video first')    def onCapture(self):        if -1 != self.lPlayHandle:            dt = datetime.datetime.now()            path = APP_PATH + 'snapshot_' + str(dt.date()) + '_' + str(dt.hour) + '_' + str(dt.minute) + '_' + str(dt.second) + '.jpg'            if self.sdk.NET_DVR_PlayBackCaptureFile(self.lPlayHandle, path):                self.text('Picture stored to ' + path)            else:                self.text('Failed to capture, Error Code: ' + str(self.sdk.NET_DVR_GetLastError()))        else:            self.text('You have to play video first')app = QApplication(sys.argv)dlg = PlayDemo()dlg.show()sys.exit(app.exec_())