public virtual object SourceObject { get; set; }
A System.Object value representing the media source object.
Use this property to assign a COM object as the media source for the conversion process. The object may be a SampleSource object or any other DirectShow source filter. The SourceType will be set to SourceObjectType.Object. Assignment can raise an error exception. For more information, refer to the Error Codes. Note: When setting this property, the Play control must be in the stopped state.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureAndPlayCtrlForm _form = new CaptureAndPlayCtrlForm();
public SampleTarget _captureTarget;
public SampleSource _playSource;
public void GetPortableTypeExample()
{
// reference the convert control
CaptureCtrl capturectrl = _form.CaptureCtrl;
PlayCtrl playctrl = _form.PlayCtrl;
// This example demonstrates how to play a capture stream
// using a play control and portable media types.
try
{
// set the source device
if (capturectrl.VideoDevices["USB"] == null)
throw new Exception("No USB video devices available!");
capturectrl.VideoDevices["USB"].Selected = true;
// set the preview
capturectrl.Preview = true;
// create a sample target object for the capture control
_captureTarget = new SampleTarget();
// set the capture target to our sample target created earlier
capturectrl.TargetObject = _captureTarget;
// create a new sample source object for the play control
_playSource = new SampleSource();
// set the video compressor
capturectrl.VideoCompressors.MCmpMJpeg.Selected = true;
//// for this example we will only capture 120 seconds of video
capturectrl.UseTimeLimit = true;
capturectrl.TimeLimit = 120;
// start the capture
capturectrl.StartCapture(CaptureMode.Video);
// we could just assign the media type from target to source
// however, let's use the portable type to simulate
// the needed steps for remote playback
Byte[] portableMediaType = _captureTarget.GetConnectedMediaType().GetPortableType();
// initialize a new media type object with the portable type
MediaType mt = new MediaType();
mt.SetPortableType(portableMediaType);
// set the sample source media type
_playSource.SetMediaType(mt);
// set the play controls sample source object
playctrl.SourceObject = _playSource;
// create a timer to drive the sample delivery
_form.TestTimer.Tick += new EventHandler(SampleDeliver_Tick);
_form.TestTimer.Interval = 33;
_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 (capturectrl.State == CaptureState.Running
|| capturectrl.State == CaptureState.Paused
|| capturectrl.State == CaptureState.Pending)
Application.DoEvents();
}
catch (Exception)
{
_result = false;
}
}
void SampleDeliver_Tick(object sender, EventArgs e)
{
_form.TestTimer.Stop();
bool eos = false;
MediaSample cs = null;
try
{
cs = _captureTarget.GetSample(1000);
}
catch (COMException cex)
{
if (cex.ErrorCode == (int)ErrorCode.VFW_E_SAMPLE_REJECTED_EOS)
eos = true;
else
throw;
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
if (!eos)
{
_playSource.DeliverSample(1000, cs);
_form.TestTimer.Start();
}
else
{
_playSource.DeliverEndOfStream(1000);
_form.TestTimer.Stop();
// set the result
_result = true;
}
}
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