#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_properties frame_properties = mlt_frame_properties( this );
- mlt_filter filter = mlt_properties_get_data( frame_properties, "watermark", NULL );
- 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." );
+
+ // Force a refresh
+ mlt_properties_set_int( composite_properties, "refresh", 1 );
+ }
+
+ // 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 )
{
- mlt_service service = mlt_producer_service( producer );
+ // 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;
- if ( mlt_service_get_frame( service, &b_frame, 0 ) == 0 )
- mlt_transition_process( composite, this, b_frame );
+ // 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 );
- error = mlt_frame_get_image( this, image, format, width, height, 1 );
+ // 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 )
+ {
+ // Get the a and b frame properties
+ mlt_properties a_props = MLT_FRAME_PROPERTIES( frame );
+ mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
+
+ // Set the b frame to be in the same position and have same consumer requirements
+ mlt_frame_set_position( b_frame, position );
+ mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
+ mlt_properties_set_int( b_props, "consumer_deinterlace", mlt_properties_get_double( a_props, "consumer_deinterlace" ) );
+
+ mlt_properties_set_int( b_props, "normalised_width", mlt_properties_get_int( a_props, "normalised_width" ) );
+ mlt_properties_set_int( b_props, "normalised_height", mlt_properties_get_int( a_props, "normalised_height" ) );
+
+ if ( mlt_properties_get_int( properties, "distort" ) )
+ {
+ mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( composite ), "distort", 1 );
+ mlt_properties_set_int( a_props, "distort", 1 );
+ mlt_properties_set_int( b_props, "distort", 1 );
+ }
+
+ if ( mlt_properties_get_int( properties, "reverse" ) == 0 )
+ {
+ // Apply all filters that are attached to this filter to the b frame
+ mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
+
+ // Process the frame
+ mlt_transition_process( composite, frame, b_frame );
+
+ // Get the image
+ error = mlt_frame_get_image( frame, image, format, width, height, 1 );
+ }
+ else
+ {
+ char temp[ 132 ];
+ int count = 0;
+ uint8_t *alpha = NULL;
+ char *rescale = mlt_properties_get( a_props, "rescale.interp" );
+ if ( rescale == NULL || !strcmp( rescale, "none" ) )
+ rescale = "hyper";
+ mlt_transition_process( composite, b_frame, frame );
+ mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_int( a_props, "consumer_aspect_ratio" ) );
+ mlt_properties_set_int( a_props, "consumer_deinterlace", 1 );
+ mlt_properties_set_int( b_props, "consumer_deinterlace", 1 );
+ mlt_properties_set( a_props, "rescale.interp", rescale );
+ mlt_properties_set( b_props, "rescale.interp", rescale );
+ mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
+ error = mlt_frame_get_image( b_frame, image, format, width, height, 1 );
+ alpha = mlt_frame_get_alpha_mask( b_frame );
+ mlt_properties_set_data( a_props, "image", *image, *width * *height * 2, NULL, NULL );
+ mlt_properties_set_data( a_props, "alpha", alpha, *width * *height, NULL, NULL );
+ mlt_properties_set_int( a_props, "width", *width );
+ mlt_properties_set_int( a_props, "height", *height );
+ mlt_properties_set_int( a_props, "progressive", 1 );
+ mlt_properties_inc_ref( b_props );
+ strcpy( temp, "_b_frame" );
+ while( mlt_properties_get_data( a_props, temp, NULL ) != NULL )
+ sprintf( temp, "_b_frame%d", count ++ );
+ mlt_properties_set_data( a_props, temp, b_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
+ }
+ }
+
+ // 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 )
{
- mlt_properties properties = mlt_frame_properties( frame );
- mlt_properties_set_data( properties, "watermark", this, 0, NULL, NULL );
+ // 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 ) - mlt_filter_get_in( this ) );
+
+ // Push the filter on to the stack
+ mlt_frame_push_service( frame, this );
+
+ // Push the get_image on to the stack
mlt_frame_push_get_image( frame, filter_get_image );
+
return frame;
}
mlt_filter this = mlt_filter_new( );
if ( this != NULL )
{
- mlt_properties properties = mlt_filter_properties( this );
+ mlt_properties properties = MLT_FILTER_PROPERTIES( this );
this->process = filter_process;
mlt_properties_set( properties, "factory", "fezzik" );
if ( arg != NULL )
mlt_properties_set( properties, "resource", arg );
+ // Ensure that attached filters are handled privately
+ mlt_properties_set_int( properties, "_filter_private", 1 );
}
return this;
}
projects / mlt / blobdiff