Advantech DVP-7020BE Скачать руководство пользователя страница 53 | Manualshive

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Advantech DVP-7020BE Скачать руководство пользователя страница 53

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2.5.5 AdvDVP_Start

Syntax

int AdvDVP_Start(int nDevNum, int SwitchingChans,
HWND Main, HWND hwndPreview)

Parameters

nDevNum:

Specifies the device number(0~3).

SwitchingChans: Single video input or switching

between video muxes.

0:

single

channel.

1: two channels (mux0, mux1).

2: three channels (mux0, mux1,
mux2).

3: four channels (mux0, mux1,
mux2, mux3).

Main:

A main window handle.

hwndPreview:

A windows handle for display area.
This parameter is only valid, when
the “SwitchChans” is zero. When
the value of this parameter is NULL,
the video will not be rendered.

Return Value

SUCCEEDED: Function

succeeded.

FAILED:

Function

failed.

SDKINITFAILED:

SDK not initialized.

DEVICENUMERROR:

Invalid device number.

Description

This function starts video capturing on a specified
capture port.
The capture state would be set as “RUNNING” after a
successful start. If the channels share frames (i.e.

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Содержание DVP-7020BE

Страница 1: ...DVP 7020BE 16 Channel PCI bus Surveillance Capture card...

Страница 2: ...ies which may result from its use Acknowledgments IBM and PC are trademarks of International Business Machines Corporation MS DOS Windows Microsoft Visual C and Visual BASIC are trade marks of Microso...

Страница 3: ...3 CHAPTER 1 General Information...

Страница 4: ...ports NTSC PAL composite video input through BNC connectors and digitizes the data to PC through PCI bus The DVP 7020BE is a digital video surveillance card with SDK software develop kit 1 1 Hardware...

Страница 5: ...ck Diagram Figure 1 1 System diagram 1 4 Packing List DVP 7020BE PCI capture card X 1 Utility CD Driver Manual SDK Sample Sample source code X 1 Connection cable for WDT X 1 DVA 210 4 Channel expand b...

Страница 6: ...DVP 7020BE User s Manual 6 1 5 Dimensions Figure 1 2 Dimensions...

Страница 7: ...7 1 6 Connector location Figure 1 3 Connector location VI 1 VI 2 VI 3 GPIO J1 GPIO J2 Video input VI 4 GPIO J3 GPIO J4 for ODM customer only...

Страница 8: ...GPIO J1 8 bit TTL CMOS level Digital I O GPIO J1 Pin define Pin no Description Pin 1 OUT0 Pin 2 OUT1 Pin 3 OUT2 Pin 4 OUT3 Pin 5 IN0 Pin 6 IN1 Pin 7 IN2 Pin 8 IN3 Pin 9 VCC Pin 10 GND Table 1 1 GPIO...

Страница 9: ...S level Digital I O GPIO J2 Pin define Pin no Description Pin 1 OUT4 Pin 2 OUT5 Pin 3 OUT6 Pin 4 OUT7 Pin 5 IN4 Pin 6 IN5 Pin 7 IN6 Pin 8 IN7 Pin 9 VCC Pin 10 GND Table 1 2 GPIO J2 pin definition Figu...

Страница 10: ...bit TTL CMOS level Digital I O GPIO J3 Pin define Pin no Description Pin 1 OUT8 Pin 2 OUT9 Pin 3 OUT10 Pin 4 OUT11 Pin 5 IN8 Pin 6 IN9 Pin 7 IN10 Pin 8 IN11 Pin 9 VCC Pin 10 GND Table 1 3 GPIO J3 pin...

Страница 11: ...level Digital I O GPIO J4 Pin define Pin no Description Pin 1 OUT8 Pin 2 OUT9 Pin 3 OUT10 Pin 4 OUT11 Pin 5 IN8 Pin 6 IN9 Pin 7 IN10 Pin 8 IN11 Pin 9 VCC Pin 10 GND Table 1 4 GPIO J4 pin definition Fi...

Страница 12: ...put VI By share frame technology DVP 7020BE can receive 16 channel composite inputs through 4 VIs The description for these 4VIs are shown in Figure 1 8 1 11 Figure 1 8 VI 1 pin definition Figure 1 9...

Страница 13: ...13 Figure 1 11 VI 4pin definition...

Страница 14: ...ou begin To facilitate the installation of the enhanced display device drivers and utility software you should read the instructions in this chapter carefully before you attempt installation The devic...

Страница 15: ...15 Installation Step 1 Pop up the System Properties window choose the Hardware page and press the Device Manager bottom...

Страница 16: ...DVP 7020BE User s Manual 16 Step 2 Click the PC icon and press the left bottom of the mouse Press the Scan for hardware changes...

Страница 17: ...17 Step 3 The system will show the un known devices like below window...

Страница 18: ...DVP 7020BE User s Manual 18 Step 4 Click the below icon to specify the driver location...

Страница 19: ...19 Step 5 Specify the driver under the CD_ROM driver...

Страница 20: ...DVP 7020BE User s Manual 20 Step 6 Push the Next bottom to process the installation Step 7 Continuing the installation...

Страница 21: ...21 Step 8 Press the Finish bottom to finish the first circle installation Then repeat the installation step 1 8 until all the un known devices are all installed...

Страница 22: ...DVP 7020BE User s Manual 22 Step 9 From below window we know there are 8 new items are installed...

Страница 23: ...23 Installation of DVP 7020BE Demo Program Step 1 Install the DVP 7020BE demo program The executive file is in the path CD_ROM DVP 7010B 7020B SDK DVP 7010B 7020B Sample Installation...

Страница 24: ...DVP 7020BE User s Manual 24 Step 2 Press the Next bottom to begin the installation...

Страница 25: ...25 Step 3 Accept the license agreement and continue the installation...

Страница 26: ...DVP 7020BE User s Manual 26 Step 4 Key in your name and company name Then press the Next bottom to continue Step 5 Choose the setup type you want and next...

Страница 27: ...27 Step 6 Beginning the installation Step 7 Finished the installation of DVP 7020BE demo program...

Страница 28: ...a DVP7010B_4DEV exe icon on the desktop Execute the demo program 1 10 Demo Program Functionality Below is the demo program window The left side panels are the preview windows of video inputs The right...

Страница 29: ...29 1 10 1 Device Each device is representative of one Conexant Fusion 878A video capture chip User can set different parameters to different 878A chip...

Страница 30: ...Channels Set the Switch Channels to decide how many input for each 878A video chip Each 878A chip can switch to 4 channel video inputs to share 30 25 frame per second For more information please refe...

Страница 31: ...e effect on the video image In other words there will be lines in the capture image especially when the targeted image is moving To eliminate this effect user might need to set the resolution down to...

Страница 32: ...DVP 7020BE User s Manual 32...

Страница 33: ...33 1 10 4 Frame Rate Set the frame rate for video capturing for specific channel Please refer to Chapter 2 5 13 AdvDVP_SetFrameRate...

Страница 34: ...DVP 7020BE User s Manual 34 1 10 5 Video Mux Set the Video Mux to specify the video input channel for setting parameter Please refer to Chapter 2 5 16 AdvDVP_GetVideoInput...

Страница 35: ...35 1 10 6 Video Standard Set the video standard of your cameras Please refer to Chapter 2 5 10 AdvDVP_GetVideoFormat...

Страница 36: ...DVP 7020BE User s Manual 36 1 10 7 Snap Buffer Press the Snap Buffer to get the image data of specific channel video input The snap image will be show on the up panel...

Страница 37: ...hannel Please refer to chapter 2 5 18 AdvDVP_SetBrightness 2 5 18 AdvDVP_GetContrast 2 5 18 AdvDVP_SetContrast 2 5 18 AdvDVP_GetHue 2 5 18 AdvDVP_SetHue 2 5 18 AdvDVP_GetSaturation 2 5 18 AdvDVP_SetSa...

Страница 38: ......

Страница 39: ...CHAPTER 2 Software Function Library CHAPTER...

Страница 40: ...and close AdvDVP_CreateSDKInstence Creates SDK instance AdvDVP_InitSDK Initializes the SDK AdvDVP_CloseSDK Closes up the SDK Capture control AdvDVP_GetNoOfDevices Gets number of video capture devices...

Страница 41: ...Input Gets video input mux AdvDVP_SetVideoInput Sets video input mux Sensor Control AdvDVP_GetBrightness Gets brightness value AdvDVP_SetBrightness Sets brightness value AdvDVP_GetContrast Gets contra...

Страница 42: ...DVP 7020BE User s Manual 42 GPIO pin...

Страница 43: ...Read End function pointer STREAMREAD_STRUCT The structure stores the Stream Read callback function pointers 2 2 2 Method Summary SDK Initialize and close AdvDVP_CreateEncSDKInstence Creates encoding...

Страница 44: ...VP_GetVideoFrameRate Gets video encoding frame rate AdvDVP_SetVideoFrameRate Sets video encoding frame rate AdvDVP_GetVideoResolution Gets video encoding resolution AdvDVP_SetVideoResolution Sets vide...

Страница 45: ...ly You can install the codec manually by using the rmp4 inf file Right click on the file and then click Install 2 3 1 Data Type Summary PlayerRes The method returned code 2 3 2 Method Summary Playback...

Страница 46: ...hat is rendered AdvDVP_RegNotifyMsg Registers message sent to player when event occurs AdvDVP_CheckFileEnd Checks if file is finished playing Playback setting AdvDVP_GetVideoResolution Gets video reso...

Страница 47: ...47 number of file AdvDVP_GetPlayRate Gets current played rate...

Страница 48: ...4 DVP7010B 7020B Functions Reference Data Type 2 4 1 Res Syntax typedef enum tagRes SUCCEEDED 1 FAILED 0 SDKINITFAILED 1 PARAMERROR 2 NODEVICES 3 NOSAMPLE 4 DEVICENUMERROR 5 INPUTERROR 6 Res Descript...

Страница 49: ...KInstence Syntax int AdvDVP_CreateSDKInstence void pp Parameters pp A pointer to the SDK instance Return Value SUCCEEDED Function succeeded FAILED Function failed PARAMERROR Parameter error Descriptio...

Страница 50: ...lue SUCCEEDED Function succeeded FAILED Function failed NODEVICES No devices found Description This function initializes all video capture devices in the system After initializing each device the capt...

Страница 51: ...x int AdvDVP_CloseSDK void Parameters None Return Value SUCCEEDED Function succeeded SDKINITFAILED SDK not initialized Description This function cleans all instances of capture devices and closes up t...

Страница 52: ...P_GetNoOfDevices int pNoOfDevs Parameters pNoOfDevs A pointer to get number of video capture devices Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized...

Страница 53: ...ux2 mux3 Main A main window handle hwndPreview A windows handle for display area This parameter is only valid when the SwitchChans is zero When the value of this parameter is NULL the video will not b...

Страница 54: ...DVP 7020BE User s Manual 54 SwitchingChans 0 the video input mux will be set 0 See Also AdvDVP_Stop AdvDVP_GetCapState...

Страница 55: ...n Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number Description This function stops video capturing on a specified captur...

Страница 56: ...m Specifies the device number 0 3 Return Value DEVICENUMERROR Invalid device number SDKINITFAILED SDK not initialized Description This function gets capture state of a specified capture port typedef e...

Страница 57: ...ffer size buf Frame buffer VMux Video mux Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number PARAMERROR Invalid par...

Страница 58: ...t nDevNum int VMux int bufsize BYTE buf nID Single video input ID or the video mux ID The value of IDs is showed as following define ID_NEW_FRAME 37810 define ID_MUX0_NEW_FRAME 37800 define ID_MUX1_NE...

Страница 59: ...ded SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number Description This function sets a callback function to SDK When new frame arrived messages and frame information will be sent...

Страница 60: ...eo_None 0x00000000 Video_NTSC_M 0x00000001 Video_NTSC_M_J 0x00000002 Video_PAL_B 0x00000010 Video_PAL_M 0x00000200 Video_PAL_N 0x00000400 Video_SECAM_B 0x00001000 AnalogVideoFormat Return Value SUCCEE...

Страница 61: ...0 Video_NTSC_M 0x00000001 Video_NTSC_M_J 0x00000002 Video_PAL_B 0x00000010 Video_PAL_M 0x00000200 Video_PAL_N 0x00000400 Video_SECAM_B 0x00001000 AnalogVideoFormat Return Value SUCCEEDED Function succ...

Страница 62: ...DVP 7020BE User s Manual 62 AdvDVP_GetVideoFormat...

Страница 63: ...vice number 0 3 FrameRate A pointer to get video frame rate Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number PARA...

Страница 64: ...channels mux0 mux1 2 three channels mux0 mux1 mux2 3 four channels mux0 mux1 mux2 mux3 FrameRate A value to set frame rate 0 FrameRate 30 Default value is 30 Return Value SUCCEEDED Function succeeded...

Страница 65: ...65 SwitchingChans 0 the frame rate must be set 30 Otherwise the function will return PARAMERROR See Also AdvDVP_GetFrameRate...

Страница 66: ...n typedef enum FULLPAL 0 PAL 768x576 SIZED1 NTSC 720x480 PAL 720x576 SIZEVGA 640x480 SIZEQVGA 320x240 SIZESUBQVGA 160x120 VideoSize Return Value SUCCEEDED Function succeeded FAILED Function failed SDK...

Страница 67: ...PAL 768x576 SIZED1 NTSC 720x480 PAL 720x576 SIZEVGA 640x480 SIZEQVGA 320x240 SIZESUBQVGA 160x120 VideoSize Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initi...

Страница 68: ...eeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number PARAMERROR Invalid parameter Description This function gets video input mux of a specified capture p...

Страница 69: ...D Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR Invalid device number PARAMERROR Invalid parameter Description This function sets video input mux of a specified capture port It retu...

Страница 70: ...1 3 This value must be set 1 when no switching channels lpValue A long pointer to get brightness value Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialize...

Страница 71: ...s value must be set 1 when no switching channels lValue A value to set brightness 0 100 Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERRO...

Страница 72: ...ux 1 3 This value must be set 1 when no switching channels lpValue A long pointer to get contrast value Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initializ...

Страница 73: ...3 This value must be set 1 when no switching channels lValue A value to set contrast 0 100 Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUME...

Страница 74: ...mux 1 3 This value must be set 1 when no switching channels lpValue A long pointer to get hue value Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized...

Страница 75: ...This value must be set 1 when no switching channels lValue A value to set hue 0 100 Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERROR I...

Страница 76: ...x 1 3 This value must be set 1 when no switching channels lpValue A long pointer to get saturation value Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initiali...

Страница 77: ...s value must be set 1 when no switching channels lValue A value to set saturation 0 100 Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized DEVICENUMERRO...

Страница 78: ...cifies the digital input number 0 3 pValue A pointer to get the value of the specified digital input Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized...

Страница 79: ...gital output number 0 3 bValue A value to set the value of the specified digital output Return Value SUCCEEDED Function succeeded FAILED Function failed SDKINITFAILED SDK not initialized PARAMERROR In...

Страница 80: ...B Encoding Functions Reference Data Type 2 6 1 EncRes Syntax typedef enum tagRes ENC_SUCCEEDED 1 ENC_FAILED 0 ENC_SDKINITFAILED 1 ENC_ENCINITFAILED 2 ENC_PARAMERROR 3 ENC_ENCNUMERROR 4 ENC_BUFFERFULL...

Страница 81: ...PSTREAMREADBEGIN int nEncNum Parameters nEncNum Specifies the encoder number Return Value None Description The pointer to the Stream Read Begin callback function called when begins the video stream r...

Страница 82: ...ncoded video frame lBufSize Specifies the size of the encoded video frame dwCompFlags Specifies if this encoded video frame is I frame The AVIIF_KEYFRAME value means the frame is I frame define AVIIF_...

Страница 83: ...STREAMREADEND int nEncNum Parameters nEncNum Specifies the encoder number Return Value None Description The pointer to the Stream Read End callback function called when the video stream read process i...

Страница 84: ...DEND int nEncNum STREAMREAD_STRUCT Parameters PSTREAMREADBEGIN The pointer to the Stream Read Begin callback function called when begins the video stream read process PSTREAMREADPROC The pointer to th...

Страница 85: ...85 This structure stores the Stream Read callback function pointers See Also PSTREAMREADBEGIN PSTREAMREADPROC PSTREAMREADEND AdvDVP_SetStreamReadCB...

Страница 86: ...ence Syntax int AdvDVP_CreateEncSDKInstence void pp Parameters pp A pointer to the encoding SDK instance Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_PARAMERROR Paramet...

Страница 87: ...AdvDVP_InitSDK Syntax int AdvDVP_InitSDK void Parameters None Return Value ENC_SUCCEEDED Function succeeded Description This function initializes all parameters of the SDK in the system See Also AdvDV...

Страница 88: ...ax int AdvDVP_CloseSDK void Parameters None Return Value ENC_SUCCEEDED Function succeeded ENC_SDKINITFAILED SDK does not be initialized successfully Description This function cleans all parameters of...

Страница 89: ...fer size Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number Description This fun...

Страница 90: ...C_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number ENC_ENCINITFAILED Encoder does not be initialized successfully Description Th...

Страница 91: ...ailed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number ENC_ENCINITFAILED Encoder does not be initialized successfully Description This function notifie...

Страница 92: ...nBufSize Specifies the size of the input buffer bKeyFrame Specifies if the video frame is encoded as a I frame Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILE...

Страница 93: ...93 buffer Description This function writes the video frame to the encoding buffer to encode it by the specified encoder See Also AdvDVP_StartVideoEncode AdvDVP_StopVideoEncode...

Страница 94: ...ailed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number ENC_ENCINITFAILED Encoder does not be initialized successfully Description This function notifie...

Страница 95: ...umber 0 15 Return Value ENC_ENCNUMERROR Invalid encoder number Description This function gets encoding state of a specified video encoder typedef enum ENC_STOPPED 1 ENC_RUNNING 2 ENC_UNINITIALIZED 1 E...

Страница 96: ...STREAMREAD_STRU CT pStreamRead Parameters pStreamRead A pointer to STREAMREAD_STRUCT structure recording the pointers to the StreamRead callback functions Return Value None Description This function...

Страница 97: ...turn Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number ENC_ENCINITFAILED Encoder does...

Страница 98: ...ity is 4 Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number ENC_ENCINITFAILED En...

Страница 99: ...o get the video frame rate Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number EN...

Страница 100: ...frame rate The range is 1 30 The default video frame rate is 30 Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC...

Страница 101: ...width of the video nHeight A pointer to get the height of the video Return Value ENC_SUCCEEDED Function succeeded ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid en...

Страница 102: ...ault width is 320 nHeight A value to set the height of the video The default height is 240 Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be in...

Страница 103: ...erval of the video key frame Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully ENC_ENCNUMERROR Invalid encoder number...

Страница 104: ...eo key frame The range is 1 99 The default video frame rate is 60 Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully EN...

Страница 105: ...ileName Specifies the file name of the AVI file nWidth nHeight nFrameRate Specifies the frame rate of the video Return Value If the function succeeds the file handle is returned Otherwise the function...

Страница 106: ...BufSize Specifies the size of the video stream data buffer dwCompFlags Flag associated with this data The AVIIF_KEYFRAME flag is defined to indicate this data does not rely on preceding data in the fi...

Страница 107: ...107 AdvDVP_CloseAVIFile...

Страница 108: ...AVIFile Parameters hAVIFile Specifies the AVI file handle Return Value ENC_SUCCEEDED Function succeeded ENC_FAILED Function failed ENC_SDKINITFAILED SDK does not be initialized successfully Descriptio...

Страница 109: ...10B 7020B Player Functions Reference Data Type 2 8 1 PlayerRes Syntax typedef enum tagRes PLAYER_SUCCEEDED 1 PLAYER_FAILED 0 PLAYER_SDKINITFAILED 1 PLAYER_PARAMERROR 2 PlayerRes Description The method...

Страница 110: ...nce Syntax int AdvDVP_CreatePlayerSDKInstence void pp Parameters pp A pointer to the player SDK instance Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed PLAYER_PARAMERRO...

Страница 111: ...the source video file Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function opens the source video file and initializes the video player The playbac...

Страница 112: ...ue PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function closes the source video file and free resources allocated for video player The playback status would be s...

Страница 113: ...the display area is resized automatically according to the video resolution Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function plays the file that...

Страница 114: ...rn Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function pauses or continues the file that has been opened The playback status would be set as PLAYER_PAUSED...

Страница 115: ...alue PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function stops the file that is playing The playback status would be set as PLAYER_STOPPED after successfully ca...

Страница 116: ...ER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function improves the current play speed by one time 4 times at most The playback status would be set as PLAYER_PLAYING a...

Страница 117: ...ED Function succeeded PLAYER_FAILED Function failed Description This function slows the current play speed by one time 4 times at most The playback status would be set as PLAYER_PLAYING after successf...

Страница 118: ...ne Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function makes the video to step forward one frame The playback status would be set as PLAYER_PAUSED...

Страница 119: ...PLAYER_FAILED Function failed Description This function gets playback status typedef enum tagPlayerStatus PLAYER_NOTOPENED 0 PLAYER_OPENED 1 PLAYER_PLAYING 2 PLAYER_STOPPED 3 PLAYER_PAUSED 4 PlayerSta...

Страница 120: ...e LPBYTE lpImage long pBufSize Parameters lpImage A pointer to a image buffer pBufSize A long pointer to receive the returned image buffer size Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_...

Страница 121: ...age When this message is received it means some event of the playback occur such as the file playing is end Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description T...

Страница 122: ...DVP 7020BE User s Manual 122 See Also AdvDVP_CheckFileEnd...

Страница 123: ...VP_CheckFileEnd Parameters None Return Value If the event that the file playing end is detected this function returns TRUE Otherwise the function returns FALSE Description This function checks if the...

Страница 124: ...nt nWidth int nHeight Parameters nWidth An integer pointer to get the width of the video nHeight An integer pointer to get the height of the video Return Value PLAYER_SUCCEEDED Function succeeded PLAY...

Страница 125: ...ble AdvDVP_GetPlayRate Parameters None Return Value If the function succeeded the playback ratio is returned Otherwise the function returns 0 Description This function retrieves the playback rate See...

Страница 126: ...double AdvDVP_GetFileTime Parameters None Return Value If the function succeeded the total file time is returned Otherwise the function returns 0 Description This function retrieves total file time in...

Страница 127: ..._GetPlayedTime Parameters None Return Value If the function succeeded the current file time is returned Otherwise the function returns 0 Description This function retrieves current file time in second...

Страница 128: ...SetPlayPosition double dTime Parameters dTime Specifies the file time in seconds Return Value PLAYER_SUCCEEDED Function succeeded PLAYER_FAILED Function failed Description This function seeks the file...

Страница 129: ...FileTotalFrames Parameters None Return Value If the function succeeded the total number of the frame of the file is returned Otherwise the function returns 0 Description This function retrieves total...

Страница 130: ...GLONG AdvDVP_GetPlayedFrames Parameters None Return Value If the function succeeded the current frame number of the file is returned Otherwise the function returns 0 Description This function retrieve...

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