SetVideoSync (DVR version only)

Description

Sets the playback synchronization mode (freerun or triggered) for the currently open video file or memory sequence. Used in combination with PlayVideo.

Syntax

[VB]
objActiveDcam.SetVideoSync Mode

[C/C++]
HRESULT SetVideoSync(short Mode);


Data Types [VB]

   Mode: Integer


Parameters [C/C++]

Mode [in]

The synchronization mode of the currently open video source. Select one of the following values:

0 - internal (freerun) synchronization. Video will be played by ActiveDcam at the currently set frame rate.

1 - external (triggered) synchronization. Video will advanced to the next frame when TriggerVideo is called.

Return Values

S_OK

Success

E_FAIL

Failure.

Example

This VB example shows how to synchronously play two AVI files using two ActiveDcam objects.

Private Sub Form_Load()

ActiveDcam1.OpenVideo "C:\\video1.avi"

ActiveDcam2.OpenVideo "C:\\video2.avi"

ActiveDcam1.SetVideoSync 1

ActiveDcam2.SetVideoSync 1

ActiveDcam1.PlayVideo

ActiveDcam2.PlayVideo

fps=ActiveDcam1.GetVideoFPS

Timer1.Interval=1000/fps

End Sub

Private Sub Timer1_Timer()

ActiveDcam1.TriggerVideo

ActiveDcam2.TriggerVideo

End Sub

Remarks

When the video file or sequence has just been opened, the playback is set to the internal synchronization.

Setting the video playback to the external synchronization mode is necessary when two video files or sequences need to be played synchronously.

Note that the external synchronization cannot be applied to an AVI files opened with the sound option.