class1.cs

这是一个用c#.net转换流媒体格式的例子

using System;
using WMEncoderLib;

namespace Trans
{
	/// <summary>
	/// Class1 的摘要说明。
	/// </summary>
	class Class1
	{
		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main(string[] args)
		{
			//
			// TODO: 在此处添加代码以启动应用程序
			//

			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:\\test.wav", "", "");
/*
				IWMEncVideoSource2 SrcVid = (IWMEncVideoSource2)SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);
				SrcVid.SetInput("C:\\test.wav", "", "");

				// 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:\\OutputFile6.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.");
				Encoder.Flush();
				Console.ReadLine(); // Press Enter after the file has been encoded.
			}
			catch(Exception e) {
				Console.WriteLine("exception:" + e.Message);
			}

		}
	}
}