Play MP3 from memory using IGraphBuilder

[ijcro]

Hello

Sorry, can anybody tell me how play MP3 from memory (when is known pointer and size of block memory) through IGraphBuilder like example from this forum?

Delphi-Quellcode:

procedure TForm1.btnRenderFileClick(Sender: TObject);
var
  pGraph: IGraphBuilder;
  pControl: IMediaControl;
  pEvent: IMediaEvent;
  evCode: Integer;
  strPath: string;
  wstrFileName: PWideChar;
begin
  CoInitialize(nil);
  GetMem(wstrFileName, MAX_PATH);
  try
    CoCreateInstance(CLSID_FilterGraph, nil, CLSCTX_INPROC_SERVER,IID_IGraphBuilder,pGraph);
    pGraph.QueryInterface(IID_IMediaControl,pControl);
    pGraph.QueryInterface(IID_IMediaEvent,pEvent);
    {-----}
    strPath := FilenameEdit1.Text;
    MultiByteToWideChar(CP_ACP, 0, PChar(strPath), -1, wstrFileName, MAX_PATH);
    if Succeeded(pGraph.RenderFile(wstrFileName,nil)) then
    {-----}
    begin 
      if Succeeded(pControl.Run) then begin
        pEvent.WaitForCompletion(INFINITE,evCode); 
      end;
    end;
  finally
    CoUninitialize();
    FreeMem(wstrFileName, MAX_PATH)
  end;
end;

Can be use pGraph.Render(pPin) and how please?

Thank you.