public virtual int PercentCompleteScalar { get; set; }
A value representing the percentage complete as a scalar value.
The programmer divides the PercentComplete property value by this property value to determine the actual percentage complete. For example, if the scalar value is 100 and the PercentComplete property equals 50, then the process is 50/100 complete (0.5 percent) instead of 50 percent. Likewise, if the scalar is 1 and the programmer gets a percent complete value of 50, then the percentage complete is 50/1, or 50 percent complete.
using Leadtools;
using Leadtools.MediaFoundation;
using LeadtoolsMediaFoundationExamples.Fixtures;
public bool _result = false;
public ConvertCtrlForm _form = new ConvertCtrlForm();
public ConvertCtrl _convertctrl;
public bool _paused = false;
public int _percent = 0;
public void ConvertExample()
{
// reference the convert control
_convertctrl = _form.ConvertCtrl;
_convertctrl.PercentCompleteScalar = 50;
// input and output files
string inFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi");
string outFile = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_ConvertExample.MP4");
try
{
// set the source for conversion
_convertctrl.SourceFile = inFile;
if(_convertctrl.SourceType != SourceObjectType.File)
throw new Exception("Incorrect Source Type");
// select MP4 target format
_convertctrl.TargetFormat = TargetFormatType.MP4;
// select H264 video target format
int index = -1;
TargetVideoFormats targetvideoformats = _convertctrl.TargetFormats[_convertctrl.TargetFormat].VideoFormats;
index = targetvideoformats.IndexOf("{34363248-0000-0010-8000-00AA00389B71}");// H264
targetvideoformats.Selection = index;
// select AAC audio target format
TargetAudioFormats targetaudioformats = _convertctrl.TargetFormats[_convertctrl.TargetFormat].AudioFormats;
index = targetaudioformats.IndexOf("{00001610-0000-0010-8000-00AA00389B71}");// AAC
targetaudioformats.Selection = index;
// set the target output file and format
_convertctrl.TargetFile = outFile;
// if the source has a non-zero duration, convert it
if (_convertctrl.Duration > 0)
{
// set the selected area for conversion
_convertctrl.SelectionStart = _convertctrl.Duration / 4;
_convertctrl.SelectionEnd = _convertctrl.Duration * 3 / 4;
// subscribe to the progress event
_convertctrl.Progress += new ProgressEventHandler(ConvertCtrl_Progress);
// start the capture process
_convertctrl.StartConvert();
// set a timer on our form to do something
_form.TestTimer.Tick += new EventHandler(TestTimer_Tick);
_form.TestTimer.Interval = 1000;
_form.TestTimer.Start();
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (_convertctrl.State == ConvertState.Running
|| _convertctrl.State == ConvertState.Paused)
Application.DoEvents();
}
}
catch (Exception)
{
_result = false;
}
}
void ConvertCtrl_Progress(object sender, ProgressEventArgs e)
{
if (_convertctrl.PercentComplete > 30 * _convertctrl.PercentCompleteScalar)
{
// get the percentage complete
_percent = _convertctrl.PercentComplete;
// pause the conversion to demonstrate pausing
_convertctrl.PauseConvert();
_paused = true;
// don't trigger the event any more
_convertctrl.Progress -= new ProgressEventHandler(ConvertCtrl_Progress);
}
}
void TestTimer_Tick(object sender, EventArgs e)
{
_form.TestTimer.Stop();
if (_paused)
{
// if we are paused, resume
if (_convertctrl.State == ConvertState.Paused)
{
// resume the conversion
_convertctrl.RunConvert();
// set the result
_result = true;
_paused = false;
}
}
_form.TestTimer.Start();
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\LEADTOOLS23\Media";
}
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