Comment puis-je obtenir une vidéo enregistrée à partir d'un appareil photo numérique?

Question

Est-ce que quelqu'un peut fournir un code C# pour obtenir une vidéo enregistrée de la caméra via Windows Media Encoder?

Answer 1

Utilisez-vous le SDK Windows Media Encoder?

A partir du fichier d'aide du SDK:

using System; 
using WMEncoderLib; 
class EncodeFile 
{ 
    static void Main() 
    { 
     try 
     { 
      // Create a WMEncoder object. 
      WMEncoder Encoder = new WMEncoder(); 

      // Retrieve the source group collection. 
      IWMEncSourceGroupCollection SrcGrpColl = Encoder.SourceGroupCollection; 

      // Add a source group to the collection. 
      IWMEncSourceGroup SrcGrp = SrcGrpColl.Add("SG_1"); 

      // Add a video and audio source to the source group. 
      IWMEncSource SrcAud = SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO); 
      SrcAud.SetInput("C:\\Inputfile.mpg", "", ""); 

      IWMEncVideoSource2 SrcVid = (IWMEncVideoSource2)SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO); 
      SrcVid.SetInput("C:\\Inputfile.mpg", "", ""); 

      // Crop 2 pixels from each edge of the video image. 
      SrcVid.CroppingBottomMargin = 2; 
      SrcVid.CroppingTopMargin = 2; 
      SrcVid.CroppingLeftMargin = 2; 
      SrcVid.CroppingRightMargin = 2; 

      // Specify a file object in which to save encoded content. 
      IWMEncFile File = Encoder.File; 
      File.LocalFileName = "C:\\OutputFile.wmv"; 

      // Choose a profile from the collection. 
      IWMEncProfileCollection ProColl = Encoder.ProfileCollection; 
      IWMEncProfile Pro; 
      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; 
       } 
      } 

      // Fill in the description object members. 
      IWMEncDisplayInfo Descr = Encoder.DisplayInfo; 
      Descr.Author = "Author name"; 
      Descr.Copyright = "Copyright information"; 
      Descr.Description = "Text description of encoded content"; 
      Descr.Rating = "Rating information"; 
      Descr.Title = "Title of encoded content"; 

      // Add an attribute to the collection. 
      IWMEncAttributes Attr = Encoder.Attributes; 
      Attr.Add ("URL", "IP address"); 

      // Start the encoding process. 
      // Wait until the encoding process stops before exiting the application. 
      Encoder.PrepareToEncode(true); 
      Encoder.Start(); 
      Console.WriteLine("Press Enter when the file has been encoded."); 
      Console.ReadLine(); // Press Enter after the file has been encoded. 
     } 
     catch (Exception e) 
     { 
      // TODO: Handle exceptions. 
     } 
    } 
} 

Vous pouvez utiliser WIA pour obtenir les fichiers bruts de l'appareil photo, puis appeler l'API de l'encodeur.