#include "config.h"
#include "mlt_producer.h"
+#include "mlt_factory.h"
#include "mlt_frame.h"
#include <stdio.h>
#include <string.h>
*/
static int producer_get_frame( mlt_service this, mlt_frame_ptr frame, int index );
+static void mlt_producer_property_changed( mlt_service owner, mlt_producer this, char *name );
+static void mlt_producer_service_changed( mlt_service owner, mlt_producer this );
/** Constructor
*/
if ( mlt_service_init( &this->parent, this ) == 0 )
{
// Get the normalisation preference
- char *normalisation = getenv( "MLT_NORMALISATION" );
+ char *normalisation = mlt_environment( "MLT_NORMALISATION" );
// The parent is the service
mlt_service parent = &this->parent;
+ // Define the parent close
+ parent->close = ( mlt_destructor )mlt_producer_close;
+ parent->close_object = this;
+
+ // For convenience, we'll assume the close_object is this
+ this->close_object = this;
+
// Get the properties of the parent
mlt_properties properties = mlt_service_properties( parent );
mlt_properties_set_position( properties, "_position", 0.0 );
mlt_properties_set_double( properties, "_frame", 0 );
if ( normalisation == NULL || strcmp( normalisation, "NTSC" ) )
+ {
mlt_properties_set_double( properties, "fps", 25.0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 72.0 / 79.0 );
+ }
else
+ {
mlt_properties_set_double( properties, "fps", 30000.0 / 1001.0 );
+ mlt_properties_set_double( properties, "aspect_ratio", 128.0 / 117.0 );
+ }
mlt_properties_set_double( properties, "_speed", 1.0 );
mlt_properties_set_position( properties, "in", 0 );
- mlt_properties_set_position( properties, "out", 1799999 );
- mlt_properties_set_position( properties, "length", 1800000 );
- mlt_properties_set_double( properties, "aspect_ratio", 4.0 / 3.0 );
+ mlt_properties_set_position( properties, "out", 14999 );
+ mlt_properties_set_position( properties, "length", 15000 );
mlt_properties_set( properties, "eof", "pause" );
mlt_properties_set( properties, "resource", "<producer>" );
// Override service get_frame
parent->get_frame = producer_get_frame;
+
+ mlt_events_listen( properties, this, "service-changed", ( mlt_listener )mlt_producer_service_changed );
+ mlt_events_listen( properties, this, "property-changed", ( mlt_listener )mlt_producer_property_changed );
+ mlt_events_register( properties, "producer-changed", NULL );
}
}
return error;
}
+/** Listener for property changes.
+*/
+
+static void mlt_producer_property_changed( mlt_service owner, mlt_producer this, char *name )
+{
+ if ( !strcmp( name, "in" ) || !strcmp( name, "out" ) || !strcmp( name, "length" ) )
+ mlt_events_fire( mlt_producer_properties( this ), "producer-changed", NULL );
+}
+
+/** Listener for service changes.
+*/
+
+static void mlt_producer_service_changed( mlt_service owner, mlt_producer this )
+{
+ mlt_events_fire( mlt_producer_properties( this ), "producer-changed", NULL );
+}
+
+/** Create a new producer.
+*/
+
+mlt_producer mlt_producer_new( )
+{
+ mlt_producer this = malloc( sizeof( struct mlt_producer_s ) );
+ mlt_producer_init( this, NULL );
+ return this;
+}
+
/** Get the parent service object.
*/
mlt_service mlt_producer_service( mlt_producer this )
{
- return &this->parent;
+ return this != NULL ? &this->parent : NULL;
}
/** Get the producer properties.
{
// Determine eof handling
char *eof = mlt_properties_get( mlt_producer_properties( this ), "eof" );
+ int use_points = 1 - mlt_properties_get_int( mlt_producer_properties( this ), "ignore_points" );
// Check bounds
if ( position < 0 )
{
position = 0;
}
- else if ( !strcmp( eof, "pause" ) && position >= mlt_producer_get_playtime( this ) )
+ else if ( use_points && !strcmp( eof, "pause" ) && position >= mlt_producer_get_playtime( this ) )
{
mlt_producer_set_speed( this, 0 );
position = mlt_producer_get_playtime( this ) - 1;
}
- else if ( !strcmp( eof, "loop" ) && position >= mlt_producer_get_playtime( this ) )
+ else if ( use_points && !strcmp( eof, "loop" ) && position >= mlt_producer_get_playtime( this ) )
{
position = position % mlt_producer_get_playtime( this );
}
mlt_properties_set_position( mlt_producer_properties( this ), "_position", position );
// Calculate the absolute frame
- mlt_properties_set_position( mlt_producer_properties( this ), "_frame", mlt_producer_get_in( this ) + position );
+ mlt_properties_set_position( mlt_producer_properties( this ), "_frame", use_points * mlt_producer_get_in( this ) + position );
return 0;
}
int mlt_producer_set_in_and_out( mlt_producer this, mlt_position in, mlt_position out )
{
+ mlt_properties properties = mlt_producer_properties( this );
+
// Correct ins and outs if necessary
if ( in < 0 )
in = 0;
}
// Set the values
- mlt_properties_set_position( mlt_producer_properties( this ), "in", in );
- mlt_properties_set_position( mlt_producer_properties( this ), "out", out );
+ mlt_events_block( properties, properties );
+ mlt_properties_set_position( properties, "in", in );
+ mlt_properties_set_position( properties, "out", out );
+ mlt_events_unblock( properties, properties );
+ mlt_events_fire( properties, "producer-changed", NULL );
return 0;
}
mlt_properties_set_double( properties, "fps", mlt_producer_get_fps( this ) );
double speed = mlt_producer_get_speed( this );
mlt_properties_set_double( properties, "_speed", speed );
+ mlt_properties_set_int( properties, "test_audio", mlt_frame_is_test_audio( *frame ) );
+ mlt_properties_set_int( properties, "test_image", mlt_frame_is_test_card( *frame ) );
return 0;
}
+/** Attach a filter.
+*/
+
+int mlt_producer_attach( mlt_producer this, mlt_filter filter )
+{
+ return mlt_service_attach( mlt_producer_service( this ), filter );
+}
+
+/** Detach a filter.
+*/
+
+int mlt_producer_detach( mlt_producer this, mlt_filter filter )
+{
+ return mlt_service_detach( mlt_producer_service( this ), filter );
+}
+
+/** Retrieve a filter.
+*/
+
+mlt_filter mlt_producer_filter( mlt_producer this, int index )
+{
+ return mlt_service_filter( mlt_producer_service( this ), index );
+}
+
/** Close the producer.
*/
void mlt_producer_close( mlt_producer this )
{
- if ( this->close != NULL )
- this->close( this );
- else
- mlt_service_close( &this->parent );
+ if ( this != NULL && mlt_properties_dec_ref( mlt_producer_properties( this ) ) <= 0 )
+ {
+ this->parent.close = NULL;
+
+ if ( this->close != NULL )
+ this->close( this->close_object );
+ else
+ mlt_service_close( &this->parent );
+ }
}
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