Sensoray 614 Windows Manuel d'utilisateur télécharger pdf (Page 31)

user just wants to get uncompressed frames or uncompressed frames with

audio from the 314.

There are three modes supported currently. “recmode=0” is a filter

graph with the 314 Uncompressed Capture pin connected to the

SampleGrabber. The SampleGrabber filter is then connected to a Null

Renderer as required by the DirectShow SDK. The callback function is

called when uncompressed frames are received. It MUST be registered

with SN_RegisterVidCB before calling this function. Otherwise, the

graph gets built and no frames are delivered.

“recmode=1” and “recmode=2” are the same as “recmode=0” except the

audio is also capture. “recmode=1” has encoded audio and “recmode=2”

has raw audio. The audio callback MUST be registered with

SN_RegisterAudCB before calling this function.

There is no preview supported in this callback filter graph.

Therefor, any preview related functions do not

apply(SN_SetBoardWindow, SN_SetRenderVideo, etc..)

Parameters

recmode

Recording mode(see above)

colorspace

The desired colorspace for the SampleGrabber. 0-RGB24, 1-YUY2.

board

board number in system.

Returns

0 if success, negative if error.

MID314_API int SN_StopCaptureOnly_CB(

int board

);

Stops the graph started by SN_StartCaptureOnly_CB.

Parameters

board

board number in system.

Returns

0 if success, negative if error.

MID314_API int SN_StartCompressedCaptureOnly(

int recmode,

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Sensoray 614 Windows Manuel d'utilisateur Page 31