API for live view

Typedefs
typedef void(CALLBACK *	OpenSDK_DataCallBack) (DataType enType, char *const pData, int iLen, void *pUser)
	Data callback format. More...

Functions
OPENSDK_API OPENSDK_RESULT CALLBACK	OpenSDK_SetDataCallBack (const char *szSessionId, OpenSDK_DataCallBack pDataCallBack, void *pUser)
	Set data callback. More...
OPENSDK_API OPENSDK_RESULT CALLBACK	OpenSDK_SetVideoLevel (const char *szDevSerial, const int iChannelNo, const int iVideoLevel)
	Set or switch resolution. More...
OPENSDK_API OPENSDK_RESULT CALLBACK	OpenSDK_StartRealPlayEx (const char *szSessionId, HWND hPlayWnd, const char *szDevSerial, const int iChannelNo, const char *szSafeKey)
	Start playing, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid. More...
OPENSDK_API OPENSDK_RESULT CALLBACK	OpenSDK_StartPlayWithStreamType (const char *szSessionId, HWND hPlayWnd, const char *szDevSerial, const int iChannelNo, const char *szSafeKey, const int iStreamType)
	Start playing with streamtype, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid. More...
OPENSDK_API OPENSDK_RESULT CALLBACK	OpenSDK_StopRealPlayEx (const char *szSessionId)
	Stop playing, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid. More...

Detailed Description

Typedef Documentation

typedef void(CALLBACK * OpenSDK_DataCallBack) (DataType enType, char *const pData, int iLen, void *pUser)

Data callback format.

Parameters

enType	Data type, see details in DataType
pData	Data content
iLen	Data length
pUser	User-defined data

Function Documentation

OPENSDK_API OPENSDK_RESULT CALLBACK OpenSDK_SetDataCallBack	(	const char *	szSessionId,
		OpenSDK_DataCallBack	pDataCallBack,
		void *	pUser
	)

Set data callback.

Parameters

[in]	szSessionId	Session ID
[in]	pDataCallBack	Callback function
[in]	pUser	User-defined data, which will be thrown out by pDataCallBack

Returns

Return 0 on success, -1 on failure

OPENSDK_API OPENSDK_RESULT CALLBACK OpenSDK_SetVideoLevel	(	const char *	szDevSerial,
		const int	iChannelNo,
		const int	iVideoLevel
	)

Set or switch resolution.

Parameters

[in]	szDevSerial	Device serial No.
[in]	iChannelNo	Device channel No.
[in]	iVideoLevel	Vedio quality, enter a number ranging from 0 to 2

Returns

Return 0 on success, non-0 on failure

See also

OpenSDK_StopRealPlay()

OpenSDK_SetDataCallBack

OPENSDK_API OPENSDK_RESULT CALLBACK OpenSDK_StartPlayWithStreamType	(	const char *	szSessionId,
		HWND	hPlayWnd,
		const char *	szDevSerial,
		const int	iChannelNo,
		const char *	szSafeKey,
		const int	iStreamType
	)

Start playing with streamtype, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid.

Parameters

[in]	szSessionId	Session ID
[in]	hPlayWnd	Display window handle, NULL stands for getting streaming only, no playback
[in]	szDevSerial	Device serial No.
[in]	iChannelNo	Device channel No.
[in]	szSafeKey	Video encryption key. if video is not encrypted, set szsafekey as NULL
[in]	iStreamType	streamtype 1-main stream, 2-substream, -1-default streamtype

Returns

Return 0 on success, non-0 on failure

See also

OpenSDK_stopRealPlay

OpenSDK_SetDataCallBack

OPENSDK_API OPENSDK_RESULT CALLBACK OpenSDK_StartRealPlayEx	(	const char *	szSessionId,
		HWND	hPlayWnd,
		const char *	szDevSerial,
		const int	iChannelNo,
		const char *	szSafeKey
	)

Start playing, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid.

Parameters

[in]	szSessionId	Session ID
[in]	hPlayWnd	Display window handle, NULL stands for getting streaming only, no playback
[in]	szDevSerial	Device serial No.
[in]	iChannelNo	Device channel No.
[in]	szSafeKey	Video encryption key. if video is not encrypted, set szsafekey as NULL

Returns

Return 0 on success, non-0 on failure

See also

OpenSDK_stopRealPlay

OpenSDK_SetDataCallBack

OPENSDK_API OPENSDK_RESULT CALLBACK OpenSDK_StopRealPlayEx

(

const char *

szSessionId

)

Stop playing, asynchronous API. Return value only stands for operating succeeded, doesn't mean playing succeeded. Judge the result via the message callback function msgid.

Parameters

[in]

szSessionId

Session ID

Returns

Return 0 on success, non-0 on failure

See also

OpenSDK_StartRealPlay()