HRESULT CSVPWMVReader::Open( IAsyncReader* pAsyncReader )
{
HRESULT hr = S_OK;
if ( NULL == m_pReader )
{
hr = WMCreateSyncReader( NULL, 0, &m_pReader );
}
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not create reader (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Open the requested file using IStream just to show how to use IStream with the synchronous reader
//
m_pStream = new CROStream((CAsyncFileReader*)pAsyncReader);
if( NULL == m_pStream )
{
hr = E_OUTOFMEMORY;
_tprintf( _T( "Could not open file (hr=0x%08x).\n" ), hr );
return( hr );
}
hr = m_pReader->OpenStream( m_pStream );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not open file (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Get the profile interface
//
IWMProfile* pProfile = NULL;
hr = m_pReader->QueryInterface( IID_IWMProfile, ( VOID ** )&pProfile );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not QI for IWMProfile (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Find out stream numbers for video and audio using the profile
//
hr = GetStreamNumbers( pProfile );
SAFE_RELEASE( pProfile );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not stream numbers (hr=0x%08x).\n" ), hr );
return( hr );
}
return( hr );
}
//----------------------------------------------------------------------------
//! @brief ストリームを開く
//! @param stream : ストリーム
//! @return エラーコード
//----------------------------------------------------------------------------
HRESULT CWMReader::OpenStream( IStream *stream )
{
HRESULT hr = S_OK;
if( stream == NULL )
return E_INVALIDARG;
if( m_WMReader.p == NULL )
{ // DLLからWMCreateSyncReaderを読み込んで使用する
if( m_WmvDll.IsLoaded() == false )
m_WmvDll.Load("wmvcore.dll");
if( m_WmvDll.IsLoaded() == false )
return m_WmvDll.GetLastError();
typedef HRESULT (*FuncWMCreateSyncReader)( IUnknown *pUnkCert, DWORD dwRights, IWMSyncReader **ppSyncReader );
FuncWMCreateSyncReader pWMCreateSyncReader = (FuncWMCreateSyncReader)m_WmvDll.GetProcAddress("WMCreateSyncReader");
if( pWMCreateSyncReader == NULL )
return m_WmvDll.GetLastError();
if( FAILED(hr = pWMCreateSyncReader( NULL, 0, &m_WMReader ) ))
return hr;
}
if( FAILED( hr = Reader()->OpenStream( stream ) ) )
return hr;
CComPtr<IWMProfile> pProfile;
if( FAILED(hr = Reader()->QueryInterface( &pProfile ) ) )
return hr;
if( FAILED(hr = GetStreamNumbers( pProfile ) ) )
return hr;
if( FAILED(hr = Reader()->QueryInterface( &m_HeaderInfo ) ) )
return hr;
if( FAILED(hr = SetStream() ) )
return hr;
// hr = SetRange();
return hr;
}
HRESULT CReader::Open( const TCHAR *ptszFile )
{
HRESULT hr = S_OK;
if ( NULL == ptszFile || NULL == _tcslen(ptszFile))
{
return( E_INVALIDARG );
}
//
// Currently we can play only files. Streams are not supported.
//
if( 0 == _tcsnicmp( ptszFile, TEXT( "http" ), 4 ) )
{
_tprintf( _T( "Wrong input file - streams are not supported : (hr=0x%08x).\n" ) ,hr );
return( E_INVALIDARG );
}
if ( NULL == m_pReader )
{
hr = WMCreateSyncReader( NULL, 0, &m_pReader );
}
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not create reader (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Open the requested file using IStream just to show how to use IStream with the synchronous reader
//
m_pStream = new CROStream;
if( NULL == m_pStream )
{
hr = E_OUTOFMEMORY;
_tprintf( _T( "Could not open file (hr=0x%08x).\n" ), hr );
return( hr );
}
hr = m_pStream->Open( ptszFile );
if( FAILED( hr ) )
{
_tprintf( _T( "Could not open file (hr=0x%08x).\n" ) ,hr );
return( hr );
}
hr = m_pReader->OpenStream( m_pStream );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not open file (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Get the profile interface
//
IWMProfile* pProfile = NULL;
hr = m_pReader->QueryInterface( IID_IWMProfile, ( VOID ** )&pProfile );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not QI for IWMProfile (hr=0x%08x).\n" ), hr );
return( hr );
}
//
// Find out stream numbers for video and audio using the profile
//
hr = GetStreamNumbers( pProfile );
SAFE_RELEASE( pProfile );
if ( FAILED( hr ) )
{
_tprintf( _T( "Could not stream numbers (hr=0x%08x).\n" ), hr );
return( hr );
}
return( hr );
}
