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| using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.InteropServices;
using DirectShowLib;
public class M2Mkv : Form
{
private Button button1;
private RadioButton MkvRadioButton;
private RadioButton WmvRadioButton;
private GroupBox groupBox1;
private Label label1;
private Container components = null;
// The main com object
FilterGraph fg = null;
// The graphbuilder interface ref
IGraphBuilder gb = null;
// The mediacontrol interface ref
IMediaControl mc = null;
// The mediaevent interface ref
IMediaEventEx me = null;
// Matroska support filter interface
IBaseFilter matroska_mux = null;
// variable to store the filename and extension
string fName, fExt;
// one "global" hr
int hr;
public M2Mkv()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.button1 = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.MkvRadioButton = new System.Windows.Forms.RadioButton();
this.WmvRadioButton = new System.Windows.Forms.RadioButton();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.groupBox1.SuspendLayout();
this.SuspendLayout();
//
// button1
//
this.button1.Location = new System.Drawing.Point(16, 16);
this.button1.Name = "button1";
this.button1.TabIndex = 0;
this.button1.Text = "Convert";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(24, 120);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(80, 24);
this.label1.TabIndex = 1;
//
// MkvRadioButton
//
this.MkvRadioButton.Checked = true;
this.MkvRadioButton.Location = new System.Drawing.Point(8, 16);
this.MkvRadioButton.Name = "MkvRadioButton";
this.MkvRadioButton.TabIndex = 2;
this.MkvRadioButton.TabStop = true;
this.MkvRadioButton.Text = "Convert to mkv";
//
// WmvRadioButton
//
this.WmvRadioButton.Location = new System.Drawing.Point(8, 40);
this.WmvRadioButton.Name = "WmvRadioButton";
this.WmvRadioButton.TabIndex = 3;
this.WmvRadioButton.TabStop = true;
this.WmvRadioButton.Text = "Convert to wmv";
//
// groupBox1
//
this.groupBox1.Controls.AddRange(new System.Windows.Forms.Control[] {
this.WmvRadioButton,
this.MkvRadioButton});
this.groupBox1.Location = new System.Drawing.Point(16, 40);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(128, 72);
this.groupBox1.TabIndex = 4;
this.groupBox1.TabStop = false;
//
// M2Mkv
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(232, 150);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1,
this.button1,
this.groupBox1});
this.MaximizeBox = false;
this.Name = "M2Mkv";
this.SizeGripStyle = System.Windows.Forms.SizeGripStyle.Hide;
this.Text = "m2mkv";
this.groupBox1.ResumeLayout(false);
this.ResumeLayout(false);
}
#endregion
[STAThread]
static void Main()
{
Application.Run(new M2Mkv());
}
//
// method to ask the user the filename
//
private void button1_Click(object sender, System.EventArgs e)
{
OpenFileDialog ofd = new OpenFileDialog();
if( ofd.ShowDialog() == DialogResult.OK )
{
FileInfo fi = new FileInfo( ofd.FileName );
fExt = fi.Extension;
fName = fi.FullName.Substring( 0, fi.FullName.Length - fExt.Length );
CloseInterfaces();
InitInterfaces();
if( MkvRadioButton.Checked )
Convert2Mkv( fName );
else
Convert2Wmv( fName );
}
}
//
// This method create the filter graph
//
void InitInterfaces()
{
try
{
fg = new FilterGraph();
gb = (IGraphBuilder)fg;
mc = (IMediaControl)fg;
me = (IMediaEventEx)fg;
}
catch(Exception)
{
MessageBox.Show( "Couldn't start" );
}
}
//
//This method stop the filter graph and ensures that we stop
//sending messages to our window
//
void CloseInterfaces()
{
if( me != null )
{
hr = mc.Stop();
DsError.ThrowExceptionForHR( hr );
hr = me.SetNotifyWindow( IntPtr.Zero , WM_GRAPHNOTIFY, IntPtr.Zero );
DsError.ThrowExceptionForHR( hr );
}
mc = null;
me = null;
gb = null;
if( matroska_mux != null )
Marshal.ReleaseComObject( matroska_mux );
matroska_mux = null;
if( fg != null )
Marshal.ReleaseComObject( fg );
fg = null;
}
//
// This method convert the input file to an mkv file
//
void Convert2Mkv( string fileName )
{
try
{
label1.Text = "processing";
button1.Enabled = false;
hr = me.SetNotifyWindow( this.Handle , WM_GRAPHNOTIFY, IntPtr.Zero );
DsError.ThrowExceptionForHR( hr );
// we want to add a filewriter filter to the filter graph
FileWriter file_writer = new FileWriter();
// make sure we access the IFileSinkFilter interface to
// set the file name
IFileSinkFilter fs = (IFileSinkFilter)file_writer;
fs.SetFileName( fileName + ".mkv", null );
DsError.ThrowExceptionForHR( hr );
// add the filter to the graph
hr = gb.AddFilter( (IBaseFilter)file_writer, "File Writer" );
DsError.ThrowExceptionForHR( hr );
// create an instance of the matroska multiplex filter and add it
// Matroska Mux Clsid = {1E1299A2-9D42-4F12-8791-D79E376F4143}
Guid guid = new Guid( "1E1299A2-9D42-4F12-8791-D79E376F4143" );
Type comtype = Type.GetTypeFromCLSID( guid );
matroska_mux = (IBaseFilter)Activator.CreateInstance( comtype );
hr = gb.AddFilter( (IBaseFilter)matroska_mux, "Matroska Muxer" );
DsError.ThrowExceptionForHR( hr );
// use Intelligent connect to build the rest of the graph
hr = gb.RenderFile( fileName + fExt, null );
DsError.ThrowExceptionForHR( hr );
// we are ready to convert
hr = mc.Run();
DsError.ThrowExceptionForHR( hr );
}
catch( Exception ex )
{
MessageBox.Show( "Error converting to mvk: " + ex.Message );
}
}
//
// This method convert the input file to an wmv file
//
void Convert2Wmv( string fileName )
{
try
{
label1.Text = "processing";
button1.Enabled = false;
hr = me.SetNotifyWindow( this.Handle , WM_GRAPHNOTIFY, IntPtr.Zero );
DsError.ThrowExceptionForHR( hr );
// here we use the asf writer to create wmv files
WMAsfWriter asf_filter = new WMAsfWriter();
IFileSinkFilter fs = (IFileSinkFilter)asf_filter;
hr = fs.SetFileName( fileName + ".wmv", null );
DsError.ThrowExceptionForHR( hr );
hr = gb.AddFilter( (IBaseFilter)asf_filter, "WM Asf Writer" );
DsError.ThrowExceptionForHR( hr );
hr = gb.RenderFile( fileName + fExt, null );
DsError.ThrowExceptionForHR( hr );
hr = mc.Run();
DsError.ThrowExceptionForHR( hr );
}
catch( Exception ex )
{
MessageBox.Show( "Error converting to wmv: " + ex.Message );
}
}
int WM_GRAPHNOTIFY = 0x00008001;
protected override void WndProc( ref Message m )
{
if( m.Msg == WM_GRAPHNOTIFY )
{
int p1, p2;
EventCode code;
if( me == null )
return;
while( me.GetEvent( out code, out p1, out p2, 0 ) == 0 )
{
if( code == EventCode.Complete )
{
label1.Text = "done";
button1.Enabled = true;
mc.Stop();
}
me.FreeEventParams( code, p1, p2 );
}
return;
}
base.WndProc( ref m );
}
} |
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