public VideoHelper(string saveToPath)
{
if (string.IsNullOrEmpty(saveToPath))
{
_savetoPath = string.Format(@"{0}\{1}.wmv", Environment.CurrentDirectory, TextHelper.RandomString(10));
}
else
{
_savetoPath = saveToPath;
}
try
{
encoder = new WMEncoder();
IWMEncSourceGroup2 SrcGrp;
IWMEncSourceGroupCollection SrcGrpColl;
SrcGrpColl = encoder.SourceGroupCollection;
SrcGrp = (IWMEncSourceGroup2)SrcGrpColl.Add("SG_1");
IWMEncVideoSource2 SrcVid;
SrcVid = (IWMEncVideoSource2)SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);
SrcVid.SetInput("ScreenCapture1", "ScreenCap", "");
IWMEncProfileCollection ProColl;
IWMEncProfile Pro;
int i;
long lLength;
ProColl = encoder.ProfileCollection;
lLength = ProColl.Count;
for (i = 0; i < lLength; i++)
{
Pro = ProColl.Item(i);
if (Pro.Name == "Screen Video High (CBR)")
{
SrcGrp.set_Profile((IWMEncProfile)Pro);
break;
}
}
}
catch (Exception ex)
{
throw new Exception(string.Format("{0}\r\nPlease install WMEncoder.exe http://www.microsoft.com/en-us/download/details.aspx?id=17792. \r\n And install WMEncoder Patch http://download.microsoft.com/download/0/3/D/03D35C05-67DA-40E0-9E45-3EA0CA6329A4/WindowsMedia9-KB929182-INTL.exe.", ex.Message));
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
Encoder = new WMEncoder();
IWMEncSourceGroup SrcGrp;
IWMEncSourceGroupCollection SrcGrpColl;
SrcGrpColl = Encoder.SourceGroupCollection;
SrcGrp = SrcGrpColl.Add("SG_1");
IWMEncSource SrcVid = null;
IWMEncSource SrcAud = null;
SrcVid = SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);
SrcAud = SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO);
SrcAud.SetInput("Default_Audio_Device", "Device", "");
SrcVid.SetInput("ScreenCapture1", "ScreenCap", "");
IWMEncProfileCollection ProColl;
IWMEncProfile Pro;
int i;
long lLength;
ProColl = Encoder.ProfileCollection;
lLength = ProColl.Count;
for (i = 0; i < lLength - 1; i++)
{
Pro = ProColl.Item(i);
Console.WriteLine("<><>>" + Pro.Name);
if (Pro.Name == "屏幕视频/音频 - 高(CBR)")
{
SrcGrp.set_Profile(Pro);
break;
}
}
IWMEncDisplayInfo Descr;
Descr = Encoder.DisplayInfo;
Descr.Author = "";
Descr.Copyright = "";
Descr.Description = "";
Descr.Rating = "";
Descr.Title = "";
IWMEncAttributes Attr;
Attr = Encoder.Attributes;
IWMEncFile File;
File = Encoder.File;
//if (label1.Text != string.Empty)
//{
// File.LocalFileName = @"C:\1.WMA"; //保存路径
//}
//else
//{
// MessageBox.Show("请先选择路径！");
// return;
//}
File.LocalFileName = @"C:\1.WMA"; //保存路径
Encoder.Start();
}
catch (Exception ex)
{
Encoder.Stop();
}
}