return tractor != NULL;
}
+/** Determine if the producer is a blank [from a playlist].
+*/
+
+int mlt_producer_is_blank( mlt_producer this )
+{
+ return this == NULL || !strcmp( mlt_properties_get( mlt_producer_properties( mlt_producer_cut_parent( this ) ), "resource" ), "blank" );
+}
+
/** Obtain the parent producer.
*/
// Special case - allow for a cut of the entire producer (this will squeeze all other cuts to 0)
if ( in <= 0 )
in = 0;
- if ( out >= mlt_producer_get_playtime( parent ) )
- out = mlt_producer_get_playtime( parent ) - 1;
+ if ( ( out < 0 || out >= mlt_producer_get_playtime( parent ) ) && !mlt_producer_is_blank( this ) )
+ out = mlt_producer_get_playtime( parent );
mlt_properties_inc_ref( parent_props );
mlt_properties_set_int( properties, "_cut", 1 );
if ( out < 0 )
out = 0;
- else if ( out > mlt_producer_get_length( this ) )
+ else if ( out > mlt_producer_get_length( this ) && !mlt_producer_is_blank( this ) )
out = mlt_producer_get_length( this );
+ else if ( out >= mlt_producer_get_length( this ) - 1 && mlt_producer_is_blank( this ) )
+ mlt_properties_set_position( mlt_producer_properties( this ), "length", out + 1 );
// Swap ins and outs if wrong
if ( out < in )
static int producer_get_frame( mlt_service service, mlt_frame_ptr frame, int index )
{
int result = 1;
- mlt_producer this = service->child;
+ mlt_producer this = service != NULL ? service->child : NULL;
- if ( !mlt_producer_is_cut( this ) )
+ if ( this != NULL && !mlt_producer_is_cut( this ) )
{
// Get the properties of this producer
mlt_properties properties = mlt_producer_properties( this );
if ( mlt_properties_get_data( properties, "_producer", NULL ) == NULL )
mlt_properties_set_data( properties, "_producer", service, 0, NULL, NULL );
}
- else
+ else if ( this != NULL )
{
+ // Get the speed of the cut
+ double speed = mlt_producer_get_speed( this );
+
// Get the parent of this cut
mlt_producer parent = mlt_producer_cut_parent( this );
// We're done with the clone now
mlt_properties_set_data( parent_properties, "use_clone", NULL, 0, NULL, NULL );
+
+ mlt_properties_set_double( mlt_frame_properties( *frame ), "_speed", speed );
+ mlt_producer_prepare_next( this );
+ }
+ else
+ {
+ *frame = mlt_frame_init( );
+ result = 0;
}
return result;