#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
/** Do it :-).
*/
-static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
+ // Error we will return
int error = 0;
- mlt_filter filter = mlt_frame_pop_service( this );
- mlt_properties properties = mlt_filter_properties( filter );
+
+ // Get the watermark filter object
+ mlt_filter this = mlt_frame_pop_service( frame );
+
+ // Get the properties of the filter
+ mlt_properties properties = mlt_filter_properties( this );
+
+ // Get the producer from the filter
mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
+
+ // Get the composite from the filter
mlt_transition composite = mlt_properties_get_data( properties, "composite", NULL );
+ // Get the resource to use
+ char *resource = mlt_properties_get( properties, "resource" );
+
+ // Get the old resource
+ char *old_resource = mlt_properties_get( properties, "old_resource" );
+
+ // Create a composite if we don't have one
if ( composite == NULL )
{
- char *geometry = mlt_properties_get( properties, "geometry" );
- composite = mlt_factory_transition( "composite", geometry == NULL ? "85%,5%:10%x10%" : geometry );
+ // Create composite via the factory
+ composite = mlt_factory_transition( "composite", NULL );
+
+ // Register the composite for reuse/destruction
if ( composite != NULL )
- {
- mlt_properties composite_properties = mlt_transition_properties( composite );
- char *distort = mlt_properties_get( properties, "distort" );
- if ( distort != NULL )
- mlt_properties_set( composite_properties, "distort", distort );
mlt_properties_set_data( properties, "composite", composite, 0, ( mlt_destructor )mlt_transition_close, NULL );
- }
}
- if ( producer == NULL )
+ // If we have one
+ if ( composite != NULL )
{
- char *resource = mlt_properties_get( properties, "resource" );
+ // Get the properties
+ mlt_properties composite_properties = mlt_transition_properties( composite );
+
+ // Pass all the composite. properties on the filter down
+ mlt_properties_pass( composite_properties, properties, "composite." );
+ }
+
+ // Create a producer if don't have one
+ if ( producer == NULL || ( old_resource != NULL && strcmp( resource, old_resource ) ) )
+ {
+ // Get the factory producer service
char *factory = mlt_properties_get( properties, "factory" );
+
+ // Create the producer
producer = mlt_factory_producer( factory, resource );
+
+ // If we have one
if ( producer != NULL )
{
- mlt_properties producer_properties = mlt_producer_properties( producer );
- mlt_properties_set( producer_properties, "eof", "loop" );
+ // Register the producer for reuse/destruction
mlt_properties_set_data( properties, "producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
+
+ // Ensure that we loop
+ mlt_properties_set( mlt_producer_properties( producer ), "eof", "loop" );
+
+ // Set the old resource
+ mlt_properties_set( properties, "old_resource", resource );
}
}
+ if ( producer != NULL )
+ {
+ // Get the producer properties
+ mlt_properties producer_properties = mlt_producer_properties( producer );
+
+ // Now pass all producer. properties on the filter down
+ mlt_properties_pass( producer_properties, properties, "producer." );
+ }
+
+ // Only continue if we have both producer and composite
if ( composite != NULL && producer != NULL )
{
+ // Get the service of the producer
mlt_service service = mlt_producer_service( producer );
+
+ // We will get the 'b frame' from the producer
mlt_frame b_frame = NULL;
+ // Get the unique id of the filter (used to reacquire the producer position)
+ char *name = mlt_properties_get( properties, "_unique_id" );
+
+ // Get the original producer position
+ mlt_position position = mlt_properties_get_position( mlt_frame_properties( frame ), name );
+
+ // Make sure the producer is in the correct position
+ mlt_producer_seek( producer, position );
+
+ // Resetting position to appease the composite transition
+ mlt_frame_set_position( frame, position );
+
+ // Get the b frame and process with composite if successful
if ( mlt_service_get_frame( service, &b_frame, 0 ) == 0 )
- mlt_transition_process( composite, this, b_frame );
+ mlt_transition_process( composite, frame, b_frame );
- error = mlt_frame_get_image( this, image, format, width, height, 1 );
+ // Get the image
+ error = mlt_frame_get_image( frame, image, format, width, height, 1 );
+ // Close the b frame
mlt_frame_close( b_frame );
}
else
{
- error = mlt_frame_get_image( this, image, format, width, height, 1 );
+ // Get the image from the frame without running fx
+ error = mlt_frame_get_image( frame, image, format, width, height, 1 );
}
return error;
static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
{
+ // Get the properties of the frame
+ mlt_properties properties = mlt_frame_properties( frame );
+
+ // Get a unique name to store the frame position
+ char *name = mlt_properties_get( mlt_filter_properties( this ), "_unique_id" );
+
+ // Assign the current position to the name
+ mlt_properties_set_position( properties, name, mlt_frame_get_position( frame ) );
+
// Push the filter on to the stack
mlt_frame_push_service( frame, this );
projects / mlt / blobdiff