Gets the estimated capture output bit rate, in bits per second.
Syntax
Visual Basic (Declaration) | |
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Public Overridable Function EstimateOutputBitRate() As Integer |
Visual Basic (Usage) | Copy Code |
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Dim instance As CaptureCtrl
Dim value As Integer
value = instance.EstimateOutputBitRate() |
C# | |
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public virtual int EstimateOutputBitRate() |
C++/CLI | |
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public:
virtual int EstimateOutputBitRate(); |
Return Value
estimated capture output bit rate, in bits per second.
Example
Visual Basic | Copy Code |
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Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public _capturectrl As CaptureCtrl
Public Sub EstimateExample()
' reference the capture control
_capturectrl = _form.CaptureCtrl
' output file
Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "CaptureCtrl_EstimateOutputBitRateExample.avi")
' set the video capture device, use your capture device name here
If _capturectrl.VideoDevices("USB") Is Nothing Then
Throw New Exception("No USB video device available")
End If
_capturectrl.VideoDevices("USB").Selected = True
Try
' set a video compressor
_capturectrl.VideoCompressors.H264.Selected = True
' set the capture target file
_capturectrl.TargetFile = outFile
' set the capture mode to still and start
_capturectrl.ReadyCapture(CaptureMode.Video Or CaptureMode.InhibitRun)
' get the bit rate estimate
Dim bitRate As Integer = _capturectrl.EstimateOutputBitRate()
' get file size estimate for 60 secs
Dim fileSize As Double = _capturectrl.EstimateOutputSize(60.0)
' set the result to what we expect
_result = (bitRate <> 0 AndAlso fileSize <> 0.0)
Catch e1 As Exception
_result = False
End Try
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media"
End Class |
C# | Copy Code |
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public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public CaptureCtrl _capturectrl;
public void EstimateExample()
{
// reference the capture control
_capturectrl = _form.CaptureCtrl;
// output file
string outFile = Path.Combine(LEAD_VARS.MediaDir,"CaptureCtrl_EstimateOutputBitRateExample.avi");
// set the video capture device, use your capture device name here
if (_capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video device available");
_capturectrl.VideoDevices["USB"].Selected = true;
try
{
// set a video compressor
_capturectrl.VideoCompressors.H264.Selected = true;
// set the capture target file
_capturectrl.TargetFile = outFile;
// set the capture mode to still and start
_capturectrl.ReadyCapture(CaptureMode.Video | CaptureMode.InhibitRun);
// get the bit rate estimate
int bitRate = _capturectrl.EstimateOutputBitRate();
// get file size estimate for 60 secs
double fileSize = _capturectrl.EstimateOutputSize(60.0);
// set the result to what we expect
_result = (bitRate != 0 && fileSize != 0.0);
}
catch (Exception)
{
_result = false;
}
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 17\Media";
} |
Remarks
Requirements
Target Platforms: Microsoft .NET Framework 2.0, Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family, Windows Vista, Windows 7
See Also