コード例 #1
0
ファイル: producer_decklink.cpp プロジェクト: gmarco/mlt-orig
    bool open( unsigned card =  0 )
    {
        IDeckLinkIterator* decklinkIterator = NULL;
        try
        {
#ifdef WIN32
            HRESULT result =  CoInitialize( NULL );
            if ( FAILED( result ) )
                throw "COM initialization failed";
            result = CoCreateInstance( CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL, IID_IDeckLinkIterator, (void**) &decklinkIterator );
            if ( FAILED( result ) )
                throw "The DeckLink drivers are not installed.";
#else
            decklinkIterator = CreateDeckLinkIteratorInstance();
            if ( !decklinkIterator )
                throw "The DeckLink drivers are not installed.";
#endif
            // Connect to the Nth DeckLink instance
            for ( unsigned i = 0; decklinkIterator->Next( &m_decklink ) == S_OK ; i++)
            {
                if ( i == card )
                    break;
                else
                    SAFE_RELEASE( m_decklink );
            }
            SAFE_RELEASE( decklinkIterator );
            if ( !m_decklink )
                throw "DeckLink card not found.";

            // Get the input interface
            if ( m_decklink->QueryInterface( IID_IDeckLinkInput, (void**) &m_decklinkInput ) != S_OK )
                throw "No DeckLink cards support input.";

            // Provide this class as a delegate to the input callback
            m_decklinkInput->SetCallback( this );

            // Initialize other members
            pthread_mutex_init( &m_mutex, NULL );
            pthread_cond_init( &m_condition, NULL );
            m_queue = mlt_deque_init();
            m_started = false;
            m_dropped = 0;
            m_isBuffering = true;
            m_cache = mlt_cache_init();

            // 3 covers YADIF and increasing framerate use cases
            mlt_cache_set_size( m_cache, 3 );
        }
        catch ( const char *error )
        {
            SAFE_RELEASE( m_decklinkInput );
            SAFE_RELEASE( m_decklink );
            mlt_log_error( getProducer(), "%s\n", error );
            return false;
        }
        return true;
    }
コード例 #2
0
ファイル: mlt_service.c プロジェクト: bmatherly/mlt
void mlt_service_cache_set_size( mlt_service self, const char *name, int size )
{
	mlt_cache cache = get_cache( self, name );
	if ( cache )
		mlt_cache_set_size( cache, size );
}