#include "config.h"
#include "mlt_consumer.h"
+#include "mlt_factory.h"
+#include "mlt_producer.h"
+#include "mlt_frame.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
int mlt_consumer_init( mlt_consumer this, void *child )
{
+ int error = 0;
memset( this, 0, sizeof( struct mlt_consumer_s ) );
this->child = child;
- return mlt_service_init( &this->parent, this );
+ error = mlt_service_init( &this->parent, this );
+ if ( error == 0 )
+ {
+ // Get the properties from the service
+ mlt_properties properties = mlt_service_properties( &this->parent );
+
+ // Get the normalisation preference
+ char *normalisation = mlt_environment( "MLT_NORMALISATION" );
+
+ // Deal with normalisation
+ if ( normalisation == NULL || strcmp( normalisation, "NTSC" ) )
+ {
+ mlt_properties_set( properties, "normalisation", "PAL" );
+ mlt_properties_set_double( properties, "fps", 25.0 );
+ mlt_properties_set_int( properties, "width", 720 );
+ mlt_properties_set_int( properties, "height", 576 );
+ mlt_properties_set_int( properties, "progressive", 0 );
+ }
+ else
+ {
+ mlt_properties_set( properties, "normalisation", "NTSC" );
+ mlt_properties_set_double( properties, "fps", 30000.0 / 1001.0 );
+ mlt_properties_set_int( properties, "width", 720 );
+ mlt_properties_set_int( properties, "height", 480 );
+ mlt_properties_set_int( properties, "progressive", 0 );
+ }
+ mlt_properties_set_double( properties, "aspect_ratio", 4.0 / 3.0 );
+
+ // Default rescaler for all consumers
+ mlt_properties_set( properties, "rescale", "bilinear" );
+ }
+ return error;
}
/** Get the parent service object.
return mlt_service_connect_producer( &this->parent, producer, 0 );
}
+/** Start the consumer.
+*/
+
+int mlt_consumer_start( mlt_consumer this )
+{
+ // Get the properies
+ mlt_properties properties = mlt_consumer_properties( this );
+
+ // Determine if there's a test card producer
+ char *test_card = mlt_properties_get( properties, "test_card" );
+
+ // Deal with it now.
+ if ( test_card != NULL )
+ {
+ if ( mlt_properties_get_data( properties, "test_card_producer", NULL ) == NULL )
+ {
+ // Create a test card producer
+ // TODO: do we want to use fezzik here?
+ mlt_producer producer = mlt_factory_producer( "fezzik", test_card );
+
+ // Do we have a producer
+ if ( producer != NULL )
+ {
+ // Test card should loop I guess...
+ mlt_properties_set( mlt_producer_properties( producer ), "eof", "loop" );
+
+ // Set the test card on the consumer
+ mlt_properties_set_data( properties, "test_card_producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
+ }
+
+ // Check and run an ante command
+ if ( mlt_properties_get( properties, "ante" ) )
+ system( mlt_properties_get( properties, "ante" ) );
+ }
+ }
+
+ // Start the service
+ if ( this->start != NULL )
+ return this->start( this );
+
+ return 0;
+}
+
+/** Protected method :-/ for consumer to get frames from connected service
+*/
+
+mlt_frame mlt_consumer_get_frame( mlt_consumer this )
+{
+ // Frame to return
+ mlt_frame frame = NULL;
+
+ // Get the service assoicated to the consumer
+ mlt_service service = mlt_consumer_service( this );
+
+ // Get the frame
+ if ( mlt_service_get_frame( service, &frame, 0 ) == 0 )
+ {
+ // Get the consumer properties
+ mlt_properties properties = mlt_consumer_properties( this );
+
+ // Get the frame properties
+ mlt_properties frame_properties = mlt_frame_properties( frame );
+
+ // Attach the test frame producer to it.
+ mlt_producer test_card = mlt_properties_get_data( properties, "test_card_producer", NULL );
+ mlt_properties_set_data( frame_properties, "test_card_producer", test_card, 0, NULL, NULL );
+
+ // Attach the rescale property
+ if ( mlt_properties_get( properties, "rescale" ) != NULL )
+ mlt_properties_set( frame_properties, "rescale.interp", mlt_properties_get( properties, "rescale" ) );
+
+ // Aspect ratio and other jiggery pokery
+ mlt_properties_set_double( frame_properties, "consumer_aspect_ratio", mlt_properties_get_double( properties, "aspect_ratio" ) );
+ mlt_properties_set_int( frame_properties, "consumer_progressive", mlt_properties_get_int( properties, "progressive" ) );
+ mlt_properties_set_int( frame_properties, "consumer_deinterlace", mlt_properties_get_int( properties, "deinterlace" ) );
+
+ }
+
+ // Return the frame
+ return frame;
+}
+
+/** Stop the consumer.
+*/
+
+int mlt_consumer_stop( mlt_consumer this )
+{
+ // Get the properies
+ mlt_properties properties = mlt_consumer_properties( this );
+
+ // Stop the consumer
+ if ( this->stop != NULL )
+ this->stop( this );
+
+ // Kill the test card
+ mlt_properties_set_data( properties, "test_card_producer", NULL, 0, NULL, NULL );
+
+ // Check and run a post command
+ if ( mlt_properties_get( properties, "post" ) )
+ system( mlt_properties_get( properties, "post" ) );
+
+ return 0;
+}
+
+/** Determine if the consumer is stopped.
+*/
+
+int mlt_consumer_is_stopped( mlt_consumer this )
+{
+ // Check if the consumer is stopped
+ if ( this->is_stopped != NULL )
+ return this->is_stopped( this );
+
+ return 0;
+}
+
/** Close the consumer.
*/
void mlt_consumer_close( mlt_consumer this )
{
- if ( this->close != NULL )
- this->close( this );
+ // Get the childs close function
+ void ( *consumer_close )( ) = this->close;
+
+ // Make sure it only gets called once
+ this->close = NULL;
+
+ // Call the childs close if available
+ if ( consumer_close != NULL )
+ consumer_close( this );
else
mlt_service_close( &this->parent );
}