c#如何捕获摄像头内容？

email这么多,在线解决.  
  在button的click事件中加入:(前提是你装有Media   编码器9)  
   
  //   Create   WMEncoderApp   and   WMEncoder   objects.  
  WMEncoderApp   EncoderApp   =   new   WMEncoderApp();  
  IWMEncoder   Encoder   =   EncoderApp.Encoder;  
   
  //   Display   the   predefined   Encoder   UI.  
  EncoderApp.Visible   =true;  
   
  //   Specify   the   source   for   the   input   stream.  
  IWMEncSourceGroupCollection   SrcGrpColl   =   Encoder.SourceGroupCollection;  
  IWMEncSourceGroup   SrcGrp   =   SrcGrpColl.Add("SG_1");  
  IWMEncSource   SrcAud   =   SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO);  
  IWMEncVideoSource2   SrcVid   =   (IWMEncVideoSource2)SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);  
  SrcAud.SetInput("Default_Audio_Device",   "Device",   "");  
  SrcVid.SetInput("Default_Video_Device",   "Device",   "");  
   
  //   Specify   a   profile.  
  IWMEncProfile   Pro;  
  IWMEncProfileCollection   ProColl   =   Encoder.ProfileCollection;  
   
  for   (int   i   =   0;   i   <   ProColl.Count;   i++)  
  {  
  Pro   =   ProColl.Item(i);  
  if   (Pro.Name   ==   "Windows   Media   Video   8   for   Local   Area   Network   (384   Kbps)")  
  {  
  SrcGrp.set_Profile(Pro);  
  break;  
  }  
  }  
   
  //   Create   a   broadcast.  
  IWMEncBroadcast   BrdCst   =   Encoder.Broadcast;  
  BrdCst.set_PortNumber   (WMENC_BROADCAST_PROTOCOL.WMENC_PROTOCOL_HTTP,   8080);  
                           
  //   Start   the   encoding   process.  
  Encoder.PrepareToEncode(true);  
  Encoder.Start();Top

29 楼hunter4500（hunter4500）回复于 2003-07-18 15:34:10 得分 0

还有,引用中加上windows   media   encoder  
  代码前加上using   WMEncoderLib;Top

 

多个摄像头的参考

 

        int lPreviewStream;

        string sDeviceString;

 

        // Create a WMEncoder object.
        Encoder = new WMEncoder();

        // Retrieve a device control plug-in info manager object from WMEncoder.
        DCPlugMgr = Encoder.DeviceControlPluginInfoManager;

        // Loop through the connected digital devices on the system such as DV cameras and VTRs.
        for (int i = 0; i < DCPlugMgr.Count; i++)
        {

            // Set the IWMEncPluginInfo object to the current plug-in.
            PlugInfo = DCPlugMgr.Item(i);

            // Find the first device plug-in that support resources.
            if (PlugInfo.SchemeType=="DeviceControl" && PlugInfo.Resources == true)
            {
                sDeviceString = PlugInfo.Item(0);
            }

            break;

        }

        // Add an audio source and a video source.
        SrcGrpColl = Encoder.SourceGroupCollection;
        SrcGrp = (IWMEncSourceGroup2)SrcGrpColl.Add("SG_1");
        SrcAud = SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO);
        SrcVid = (IWMEncVideoSource)SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);
        SrcAud.SetInput(sDeviceString, "Device", "");
        SrcVid.SetInput(sDeviceString, "Device", "");

 

参考2：

 

 // Create a WMEncoder object.
        WMEncoder Encoder = new WMEncoder();

        // Retrieve source and device plug-in info manager objects from WMEncoder.
        IWMEncSourcePluginInfoManager SrcPlugMgr = Encoder.SourcePluginInfoManager;
        IWMEncDeviceControlPluginInfoManager DCPlugMgr = Encoder.DeviceControlPluginInfoManager;

        // Loop through all the audio and video devices on the system.
        IWMEncPluginInfo PlugInfo;
        for (int i = 0; i < SrcPlugMgr.Count; i++)
        {
            // Set the IWMEncPluginInfo object to the current plug-in.
            PlugInfo = SrcPlugMgr.Item(i);

            // Find the device plug-ins that support resources.
            if (PlugInfo.SchemeType == "DEVICE" && PlugInfo.Resources == true)
            {
                // Loop through the resources in the current plug-in.
                for (int j = 0; j<PlugInfo.Count; j++)
                {
                    // Add audio resources to the cboAudioSource combo box.
                    if (PlugInfo.MediaType == WMENC_SOURCE_TYPE.WMENC_AUDIO) cboAudioSource.Items.Add(PlugInfo.Item(j));

                    // Add video resources to the cboVideoSource combo box.
                    if (PlugInfo.MediaType == WMENC_SOURCE_TYPE.WMENC_VIDEO) cboVideoSource.Items.Add(PlugInfo.Item(j));

                }
            }
        }

        // This section shows how to enumerate digital devices such as DV cameras and VTRs.
        // Loop through the connected digital devices on the system.
        for (int i = 0; i < DCPlugMgr.Count; i++)
        {
            // Set the IWMEncPluginInfo object to the current plug-in.
            PlugInfo = DCPlugMgr.Item(i);

            // Loop through the resources in the current plug-in
            // and add them to the cboDevices combo box.
            if (PlugInfo.SchemeType=="DeviceControl" && PlugInfo.Resources == true)
            {
                for (int j = 0; j< PlugInfo.Count; j++) cboDevices.Items.Add(PlugInfo.Item(j));
            }
        }