* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "transition_region.h"
if ( filter != NULL )
{
// Properties of this
- mlt_properties properties = mlt_transition_properties( this );
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
// String to hold the property name
char id[ 256 ];
sprintf( key, "%s.", name );
// Just in case, let's assume that the filter here has a composite
- mlt_properties_set( mlt_filter_properties( filter ), "composite.start", "0%,0%:100%x100%" );
- mlt_properties_set( mlt_filter_properties( filter ), "composite.fill", "true" );
+ //mlt_properties_set( MLT_FILTER_PROPERTIES( filter ), "composite.geometry", "0%,0%:100%x100%" );
+ //mlt_properties_set_int( MLT_FILTER_PROPERTIES( filter ), "composite.fill", 1 );
// Pass all the key properties on the filter down
- mlt_properties_pass( mlt_filter_properties( filter ), properties, key );
+ mlt_properties_pass( MLT_FILTER_PROPERTIES( filter ), properties, key );
// Ensure that filter is assigned
mlt_properties_set_data( properties, id, filter, 0, ( mlt_destructor )mlt_filter_close, NULL );
static uint8_t *filter_get_alpha_mask( mlt_frame this )
{
+ uint8_t *alpha = NULL;
+
// Obtain properties of frame
- mlt_properties properties = mlt_frame_properties( this );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( this );
// Get the shape frame
mlt_frame shape_frame = mlt_properties_get_data( properties, "shape_frame", NULL );
// Get the width and height of the image
- int region_width = mlt_properties_get_int( mlt_frame_properties( this ), "width" );
- int region_height = mlt_properties_get_int( mlt_frame_properties( this ), "height" );
+ int region_width = mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "width" );
+ int region_height = mlt_properties_get_int( MLT_FRAME_PROPERTIES( this ), "height" );
uint8_t *image = NULL;
mlt_image_format format = mlt_image_yuv422;
// Get the shape image to trigger alpha creation
- mlt_properties_set( mlt_frame_properties( shape_frame ), "distort", "true" );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( shape_frame ), "distort", 1 );
mlt_frame_get_image( shape_frame, &image, &format, ®ion_width, ®ion_height, 0 );
- return mlt_frame_get_alpha_mask( shape_frame );
+ alpha = mlt_frame_get_alpha_mask( shape_frame );
+
+ // Generate from the Y component of the image if no alpha available
+ if ( alpha == NULL )
+ {
+ int size = region_width * region_height;
+ uint8_t *p = mlt_pool_alloc( size );
+ alpha = p;
+ while ( size -- )
+ {
+ *p ++ = ( int )( ( ( *image ++ - 16 ) * 299 ) / 255 );
+ image ++;
+ }
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( this ), "alpha", alpha, region_width * region_height, mlt_pool_release, NULL );
+ }
+ else
+ {
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( this ), "alpha", alpha, region_width * region_height, NULL, NULL );
+ }
+
+ this->get_alpha_mask = NULL;
+
+ return alpha;
}
/** Do it :-).
// Error we will return
int error = 0;
- // Get the watermark transition object
- mlt_transition this = mlt_frame_pop_service( frame );
-
// We will get the 'b frame' from the frame stack
mlt_frame b_frame = mlt_frame_pop_frame( frame );
+ // Get the watermark transition object
+ mlt_transition this = mlt_frame_pop_service( frame );
+
// Get the properties of the transition
- mlt_properties properties = mlt_transition_properties( this );
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
// Get the composite from the transition
mlt_transition composite = mlt_properties_get_data( properties, "composite", NULL );
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 );
+ mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), name );
// Create a composite if we don't have one
if ( composite == NULL )
if ( composite != NULL )
{
// Get the properties
- mlt_properties composite_properties = mlt_transition_properties( composite );
+ mlt_properties composite_properties = MLT_TRANSITION_PROPERTIES( composite );
// We want to ensure that we don't get a wobble...
- mlt_properties_set( composite_properties, "distort", "true" );
- mlt_properties_set( composite_properties, "progressive", "1" );
+ //mlt_properties_set_int( composite_properties, "distort", 1 );
+ mlt_properties_set_int( composite_properties, "progressive", 1 );
// Pass all the composite. properties on the transition down
mlt_properties_pass( composite_properties, properties, "composite." );
mlt_properties_set_data( properties, "composite", composite, 0, ( mlt_destructor )mlt_transition_close, NULL );
}
}
+ else
+ {
+ // Pass all current properties down
+ mlt_properties composite_properties = MLT_TRANSITION_PROPERTIES( composite );
+ mlt_properties_pass( composite_properties, properties, "composite." );
+ }
// Create filters
if ( filter == NULL )
count ++;
}
}
+
+ // Look for the first filter again
+ filter = mlt_properties_get_data( properties, "_filter_0", NULL );
+ }
+ else
+ {
+ // Pass all properties down
+ mlt_filter temp = NULL;
+
+ // Loop Variable
+ int i = 0;
+
+ // Number of filters found
+ int count = 0;
+
+ // Loop for all properties
+ for ( i = 0; i < mlt_properties_count( properties ); i ++ )
+ {
+ // Get the name of this property
+ char *name = mlt_properties_get_name( properties, i );
+
+ // If the name does not contain a . and matches filter
+ if ( strchr( name, '.' ) == NULL && !strncmp( name, "filter", 6 ) )
+ {
+ // Strings to hold the id and pass down key
+ char id[ 256 ];
+ char key[ 256 ];
+
+ // Construct id and key
+ sprintf( id, "_filter_%d", count );
+ sprintf( key, "%s.", name );
+
+ // Get the filter
+ temp = mlt_properties_get_data( properties, id, NULL );
+
+ if ( temp != NULL )
+ {
+ mlt_properties_pass( MLT_FILTER_PROPERTIES( temp ), properties, key );
+ count ++;
+ }
+ }
+ }
}
// Get the image
// Get the resource of this filter (could be a shape [rectangle/circle] or an alpha provider of choice
char *resource = mlt_properties_get( properties, "resource" );
+ // Get the old resource in case it's changed
+ char *old_resource = mlt_properties_get( properties, "_old_resource" );
+
// String to hold the filter to query on
char id[ 256 ];
b_frame = composite_copy_region( composite, frame, position );
// Ensure a destructor
- mlt_properties_set_data( mlt_frame_properties( frame ), name, b_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( frame ), name, b_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
}
+ // Set the position of the b_frame
+ mlt_frame_set_position( b_frame, position );
+
// Make sure the filter is in the correct position
while ( filter != NULL )
{
// Stack this filter
- mlt_filter_process( filter, b_frame );
+ if ( mlt_properties_get_int( MLT_FILTER_PROPERTIES( filter ), "off" ) == 0 )
+ mlt_filter_process( filter, b_frame );
// Generate the key for the next
sprintf( id, "_filter_%d", ++ i );
filter = mlt_properties_get_data( properties, id, NULL );
}
+ // Allow filters to be attached to a region filter
+ filter = mlt_properties_get_data( properties, "_region_filter", NULL );
+ if ( filter != NULL )
+ mlt_service_apply_filters( MLT_FILTER_SERVICE( filter ), b_frame, 0 );
+
// Hmm - this is probably going to go wrong....
mlt_frame_set_position( frame, position );
mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
// If We have no producer then create one
- if ( producer == NULL )
+ if ( producer == NULL || ( old_resource != NULL && strcmp( resource, old_resource ) ) )
{
// Get the factory producer service
char *factory = mlt_properties_get( properties, "factory" );
+ // Store the old resource
+ mlt_properties_set( properties, "_old_resource", resource );
+
// Special case circle resource
if ( strcmp( resource, "circle" ) == 0 )
{
if ( producer != NULL )
{
// Get the producer properties
- mlt_properties producer_properties = mlt_producer_properties( producer );
+ mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
// Ensure that we loop
mlt_properties_set( producer_properties, "eof", "loop" );
mlt_producer_seek( producer, position );
// Get the shape frame
- if ( mlt_service_get_frame( mlt_producer_service( producer ), &shape_frame, 0 ) == 0 )
+ if ( mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), &shape_frame, 0 ) == 0 )
{
// Ensure that the shape frame will be closed
- mlt_properties_set_data( mlt_frame_properties( b_frame ), "shape_frame", shape_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( b_frame ), "shape_frame", shape_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
// Specify the callback for evaluation
b_frame->get_alpha_mask = filter_get_alpha_mask;
static mlt_frame transition_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
{
// Get the properties of the frame
- mlt_properties properties = mlt_frame_properties( a_frame );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( a_frame );
// Get a unique name to store the frame position
- char *name = mlt_properties_get( mlt_transition_properties( this ), "_unique_id" );
+ char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( this ), "_unique_id" );
// Assign the current position to the name
mlt_properties_set_position( properties, name, mlt_frame_get_position( a_frame ) );
// Push the transition on to the frame
mlt_frame_push_service( a_frame, this );
- // Push the transition method
- mlt_frame_push_get_image( a_frame, transition_get_image );
-
// Push the b_frame on to the stack
mlt_frame_push_frame( a_frame, b_frame );
+ // Push the transition method
+ mlt_frame_push_get_image( a_frame, transition_get_image );
+
// Return the frame
return a_frame;
}
if ( this != NULL )
{
// Get the properties from the transition
- mlt_properties properties = mlt_transition_properties( this );
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
// Assign the transition process method
this->process = transition_process;
// Resource defines the shape of the region
mlt_properties_set( properties, "resource", arg == NULL ? "rectangle" : arg );
+
+ // Inform apps and framework that this is a video only transition
+ mlt_properties_set_int( properties, "_transition_type", 1 );
}
// Return the transition