Creating DVD Images for C

// The following code demonstrates how to create DVD images 

The following code demonstrates how to create DVD images using LEAD Multimedia toolkit.

#include "ltmm.h"
#include "ILTDvdWriter2.h"
#include <TChar.h>

LPOLESTR T2OLE(LPCTSTR lpt)
{
   static OLECHAR lpw[512];
   if(!lpt)
      return NULL;
   lpw[0] = L'\0';
   MultiByteToWideChar(CP_ACP, 0, lpt, -1, lpw, 512);
   return lpw;
}

LPTSTR OLE2T(LPCOLESTR lpw)
{
   static TCHAR lpt[512];
   if(!lpw)
      return NULL;
   lpt[0] = _T('\0');
   WideCharToMultiByte(CP_ACP, 0, lpw, -1, lpt, 512, NULL, NULL);
   return lpt;
}

void WaitForCompletion(IltmmConvert *pConvert)
{
   long lState = ltmmConvert_State_Running;
   MSG msg;

   IltmmConvert_get_State(pConvert, &lState);

   while( lState != ltmmConvert_State_Stopped )
   { 
      if( PeekMessage(&msg, NULL, 0, 0, PM_REMOVE) )
      {
         TranslateMessage(&msg);
         DispatchMessage(&msg);
      }

      IltmmConvert_get_State(pConvert, &lState);
   }
}

L_MULTIMEDIATEX_API void CreateDVDImageExample ( )
{
   IltmmConvert *pConvert = NULL;
   IUnknown *pDvdWriter = NULL;
   ILTDvdWriter *pIDvdWriter = NULL;
   BSTR szFileName = NULL;
   IltmmCompressors *pCompressors;
   long lIndex = 0;
   HRESULT hr;

   CoInitialize(NULL);

   // create a converter object
   hr = CoCreateInstance(&CLSID_ltmmConvert, NULL, CLSCTX_INPROC_SERVER, &IID_IltmmConvert, (void**) &pConvert);

   // set up the converter: 
   IltmmConvert_put_TargetFormat(pConvert, ltmmConvert_TargetFormat_DVD);
   IltmmConvert_get_VideoCompressors(pConvert, &pCompressors);
   hr = IltmmCompressors_Find(pCompressors, L"@device:sw:{33D9A760-90C8-11D0-BD43-00A0C911CE86}\\LEAD MPEG2 Encoder (2.0)", &lIndex);
   hr = IltmmCompressors_put_Selection(pCompressors, lIndex);
   IltmmCompressors_Release(pCompressors);
   IltmmConvert_get_AudioCompressors(pConvert, &pCompressors);
   hr = IltmmCompressors_Find(pCompressors, L"@device:sw:{33D9A761-90C8-11D0-BD43-00A0C911CE86}\\LEAD MPEG Audio Encoder (2.0)", &lIndex);
   hr = IltmmCompressors_put_Selection(pCompressors, lIndex);
   IltmmCompressors_Release(pCompressors);

   // 1- Create a DVD image with 1 title that contains 1 chapter: 
   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DaDa_CMP.avi")); // Source video
   IltmmConvert_put_SourceFile(pConvert, szFileName);
   SysFreeString(szFileName);

   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DVDImage1")); // Destination image folder
   IltmmConvert_put_TargetFile(pConvert, szFileName);
   SysFreeString(szFileName);

   IltmmConvert_StartConvert(pConvert);
   // Wait for the conversion to finish. You can use a window to receive notifications
   WaitForCompletion(pConvert);

   // Done
   IltmmConvert_ResetTarget(pConvert);
   IltmmConvert_ResetSource(pConvert);


   // 2- Create a DVD image with 1 title that contains 2 chapters: 
   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DaDa_CMP.avi")); // Source video
   IltmmConvert_put_SourceFile(pConvert, szFileName);
   SysFreeString(szFileName);

   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DVDImage2")); // Destination image folder
   IltmmConvert_put_TargetFile(pConvert, szFileName);
   SysFreeString(szFileName);

   // Retrieve the DVD Writer interface 
   IltmmConvert_GetSubObject(pConvert, ltmmConvert_Object_Sink, &pDvdWriter);
   IUnknown_QueryInterface(pDvdWriter, &IID_ILTDvdWriter, (void**)&pIDvdWriter);

   // Set the DVD temporary files folder 
   szFileName = SysAllocString(T2OLE("C:\\Temp")); // Destination image folder
   ILTDvdWriter_put_TempPath(pIDvdWriter, szFileName);
   SysFreeString(szFileName);

   // Set the TitleBreak property to FALSE. 
   // This will prevent the title from being written immediately after the conversion
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_FALSE); 

   // write the first chapter
   IltmmConvert_StartConvert(pConvert);
   // Wait for the conversion to finish. You can use a window to receive notifications
   WaitForCompletion(pConvert);

   // You can change the source file before this step.
   // This demonstration code uses the same file for all chapters.
   // Create chapter 2.
   IltmmConvert_StartConvert(pConvert);
   WaitForCompletion(pConvert);

   // Close the title
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_TRUE);

   // Done
   IUnknown_Release(pDvdWriter);
   pDvdWriter = NULL;
   ILTDvdWriter_Release(pIDvdWriter);
   pIDvdWriter = NULL;
   IltmmConvert_ResetTarget(pConvert);
   IltmmConvert_ResetSource(pConvert);

   // 3- Create a DVD image with 2 titles, each containing 2 chapters: 
   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DaDa_CMP.avi")); // Source video
   IltmmConvert_put_SourceFile(pConvert, szFileName);
   SysFreeString(szFileName);

   szFileName = SysAllocString(T2OLE("c:\\MyVideos\\DVDImage3")); // Destination image folder
   IltmmConvert_put_TargetFile(pConvert, szFileName);
   SysFreeString(szFileName);

   // Retrieve the DVD Writer interface 
   IltmmConvert_GetSubObject(pConvert, ltmmConvert_Object_Sink, &pDvdWriter);
   IUnknown_QueryInterface(pDvdWriter, &IID_ILTDvdWriter, (void**)&pIDvdWriter);

   // Set the TitleBreak property to FALSE. 
   // This will prevent the title from being written immediately after the conversion
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_FALSE); 

   // Write the first chapter in the first title
   IltmmConvert_StartConvert(pConvert);
   // Wait for the conversion to finish. You can use a window to receive notifications
   WaitForCompletion(pConvert);

   // Write the second chapter in the first title
   // You can change the source file before this step, this demonstration code uses the same file for all chapters.
   IltmmConvert_StartConvert(pConvert);
   WaitForCompletion(pConvert);

   // Prepare for the second title
   // Set the TitleBreak property to TRUE, so the the current title can be flushed
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_TRUE);

   // Set the TitleBreak property to FALSE. 
   // This will prevent the title from being written immediately after the conversion
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_FALSE);

   // Disable Overwrite so the title will be appended to an existing dvd image
   ILTDvdWriter_put_Overwrite(pIDvdWriter, VARIANT_FALSE);

   // Write the first chapter in the second title
   IltmmConvert_StartConvert(pConvert);
   // Wait for the conversion to finish. You can use a window to receive notifications
   WaitForCompletion(pConvert);

   // Write the second chapter in the second title
   IltmmConvert_StartConvert(pConvert);
   WaitForCompletion(pConvert);

   // Close the second title
   ILTDvdWriter_put_TitleBreak(pIDvdWriter, VARIANT_TRUE);

   // restore the overwrite property
   ILTDvdWriter_put_Overwrite(pIDvdWriter, VARIANT_TRUE);

   // Done 
   IUnknown_Release(pDvdWriter);
   pDvdWriter = NULL;
   ILTDvdWriter_Release(pIDvdWriter);
   pIDvdWriter = NULL;
   IltmmConvert_ResetTarget(pConvert);
   IltmmConvert_ResetSource(pConvert);
   IltmmConvert_Release(pConvert);

   CoUninitialize();
}

int main()
{
   CreateDVDImageExample ( ) ;

   return 0;
}