int mlt_field_plant_transition( mlt_field self, mlt_transition that, int a_track, int b_track )
{
// Connect the transition to the last producer
int result = mlt_transition_connect( that, self->producer, a_track, b_track );
// If successful, then we'll use self for connecting in the future
if ( result == 0 )
{
// This is now the new producer
self->producer = MLT_TRANSITION_SERVICE( that );
// Reconnect tractor to new producer
mlt_tractor_connect( self->tractor, self->producer );
// Fire an event
mlt_events_fire( mlt_field_properties( self ), "service-changed", NULL );
}
return result;
}
int mlt_field_plant_filter( mlt_field self, mlt_filter that, int track )
{
// Connect the filter to the last producer
int result = mlt_filter_connect( that, self->producer, track );
// If successful, then we'll use this for connecting in the future
if ( result == 0 )
{
// This is now the new producer
self->producer = MLT_FILTER_SERVICE( that );
// Reconnect tractor to new producer
mlt_tractor_connect( self->tractor, self->producer );
// Fire an event
mlt_events_fire( mlt_field_properties( self ), "service-changed", NULL );
}
return result;
}
mlt_field mlt_field_new( mlt_multitrack multitrack, mlt_tractor tractor )
{
// Initialise the field
mlt_field self = calloc( 1, sizeof( struct mlt_field_s ) );
// Initialise it
if ( self != NULL )
{
// Construct a multitrack
self->multitrack = multitrack;
// Construct a tractor
self->tractor = tractor;
// The first plant will be connected to the mulitrack
self->producer = MLT_MULTITRACK_SERVICE( self->multitrack );
// Connect the tractor to the multitrack
mlt_tractor_connect( self->tractor, self->producer );
}
// Return self
return self;
}
void mlt_field_disconnect_service( mlt_field self, mlt_service service )
{
mlt_service p = mlt_service_producer( service );
mlt_service c = mlt_service_consumer( service);
int i;
switch ( mlt_service_identify(c) )
{
case filter_type:
i = mlt_filter_get_track( MLT_FILTER(c) );
mlt_service_connect_producer( c, p, i );
break;
case transition_type:
i = mlt_transition_get_a_track ( MLT_TRANSITION(c) );
mlt_service_connect_producer( c, p, i );
MLT_TRANSITION(c)->producer = p;
break;
case tractor_type:
self->producer = p;
mlt_tractor_connect( MLT_TRACTOR(c), p );
default:
break;
}
mlt_events_fire( mlt_field_properties( self ), "service-changed", NULL );
}
int main( int argc, char **argv )
{
char temp[ 132 ];
char *file1 = NULL;
char *file2 = NULL;
char *wipe = NULL;
mlt_factory_init( "../modules" );
if ( argc < 4 )
{
fprintf( stderr, "usage: luma file1.mpeg file2.mpeg wipe.pgm\n" );
return 1;
}
else
{
file1 = argv[ 1 ];
file2 = argv[ 2 ];
wipe = argv[ 3 ];
}
// Start the consumer...
mlt_consumer consumer = mlt_factory_consumer( "bluefish", "NTSC" );
// Create the producer(s)
mlt_producer dv1 = mlt_factory_producer( "mcmpeg", file1 );
mlt_producer dv2 = mlt_factory_producer( "mcmpeg", file2 );
mlt_playlist playlist1 = mlt_playlist_init();
mlt_playlist_append_io( playlist1, dv1, 0.0, 5.0 );
mlt_playlist playlist2 = mlt_playlist_init();
mlt_playlist_blank( playlist2, 2.9 );
mlt_playlist_append( playlist2, dv2 );
// Register producers(s) with a multitrack object
mlt_multitrack multitrack = mlt_multitrack_init( );
mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist1 ), 0 );
mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist2 ), 1 );
// Define a transition
mlt_transition transition = mlt_factory_transition( "luma", wipe );
mlt_properties_set( mlt_transition_properties( transition ), "filename", wipe );
mlt_properties_set_double( mlt_transition_properties( transition ), "softness", 0.1 );
mlt_transition_connect( transition, mlt_multitrack_service( multitrack ), 0, 1 );
mlt_transition_set_in_and_out( transition, 3.0, 5.0 );
// Buy a tractor and connect it to the filter
mlt_tractor tractor = mlt_tractor_init( );
mlt_tractor_connect( tractor, mlt_transition_service( transition ) );
// Connect the tractor to the consumer
mlt_consumer_connect( consumer, mlt_tractor_service( tractor ) );
// Do stuff until we're told otherwise...
fprintf( stderr, "Press return to continue\n" );
fgets( temp, 132, stdin );
// Close everything...
mlt_consumer_close( consumer );
mlt_tractor_close( tractor );
mlt_transition_close( transition );
mlt_multitrack_close( multitrack );
mlt_playlist_close( playlist1 );
mlt_playlist_close( playlist2 );
mlt_producer_close( dv1 );
mlt_producer_close( dv2 );
return 0;
}
int main( int argc, char **argv )
{
char temp[ 132 ];
char *file1 = NULL;
char *text = NULL;
mlt_factory_init( "../modules" );
if ( argc < 3 )
{
fprintf( stderr, "usage: pango file.mpeg text_to_display\n" );
return 1;
}
else
{
file1 = argv[ 1 ];
text = argv[ 2 ];
}
// Start the consumer...
mlt_consumer consumer = mlt_factory_consumer( "bluefish", "NTSC" );
// Create the producer(s)
mlt_playlist pl1 = mlt_playlist_init();
mlt_producer dv1 = mlt_factory_producer( "mcmpeg", file1 );
mlt_playlist_append( pl1, dv1 );
mlt_playlist pl2 = mlt_playlist_init();
mlt_producer title = mlt_factory_producer( "pango", NULL ); //"<span font_desc=\"Sans Bold 36\">Mutton <span font_desc=\"Luxi Serif Bold Oblique 36\">Lettuce</span> Tomato</span>" );
mlt_playlist_append( pl2, title );
mlt_properties_set( mlt_producer_properties( title ), "family", "Sans" );
mlt_properties_set( mlt_producer_properties( title ), "size", "36" );
mlt_properties_set( mlt_producer_properties( title ), "weight", "700" );
mlt_properties_set( mlt_producer_properties( title ), "text", text );
mlt_properties_set_int( mlt_producer_properties( title ), "bgcolor", 0x0000007f );
mlt_properties_set_int( mlt_producer_properties( title ), "pad", 8 );
mlt_properties_set_int( mlt_producer_properties( title ), "align", 1 );
mlt_properties_set_int( mlt_producer_properties( title ), "x", 200 );
mlt_properties_set_int( mlt_producer_properties( title ), "y", 40 );
mlt_properties_set_double( mlt_producer_properties( title ), "mix", 0.8 );
// Register producers(s) with a multitrack object
mlt_multitrack multitrack = mlt_multitrack_init( );
mlt_multitrack_connect( multitrack, mlt_playlist_producer( pl1 ), 0 );
mlt_multitrack_connect( multitrack, mlt_playlist_producer( pl2 ), 1 );
// Define a transition
mlt_transition transition = mlt_factory_transition( "composite", NULL );
mlt_transition_connect( transition, mlt_multitrack_service( multitrack ), 0, 1 );
mlt_transition_set_in_and_out( transition, 0.0, 9999.0 );
// Buy a tractor and connect it to the filter
mlt_tractor tractor = mlt_tractor_init( );
mlt_tractor_connect( tractor, mlt_transition_service( transition ) );
// Connect the tractor to the consumer
mlt_consumer_connect( consumer, mlt_tractor_service( tractor ) );
// Do stuff until we're told otherwise...
fprintf( stderr, "Press return to continue\n" );
fgets( temp, 132, stdin );
// Close everything...
mlt_consumer_close( consumer );
mlt_tractor_close( tractor );
mlt_transition_close( transition );
mlt_multitrack_close( multitrack );
mlt_playlist_close( pl1 );
mlt_playlist_close( pl2 );
mlt_producer_close( dv1 );
mlt_producer_close( title );
return 0;
}
