* 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 "filter_obscure.h"
#include <framework/mlt_frame.h>
-#include <framework/mlt_deque.h>
#include <stdio.h>
#include <stdlib.h>
/** Parse a value from a geometry string.
*/
-static float parse_value( char **ptr, int normalisation, char delim, float defaults )
+static inline float parse_value( char **ptr, int normalisation, char delim, float defaults )
{
float value = defaults;
}
else
{
+ geometry->x = 0;
+ geometry->y = 0;
+ geometry->w = nw;
+ geometry->h = nh;
geometry->mask_w = 20;
geometry->mask_h = 20;
}
/** The averaging function...
*/
-void obscure_average( uint8_t *start, int width, int height, int stride )
+static inline void obscure_average( uint8_t *start, int width, int height, int stride )
{
- int y;
- int x;
- int Y = ( *start + *( start + 2 ) ) / 2;
- int U = *( start + 1 );
- int V = *( start + 3 );
-
- for ( y = 0; y < height; y ++ )
+ register int y;
+ register int x;
+ register int Y = ( *start + *( start + 2 ) ) / 2;
+ register int U = *( start + 1 );
+ register int V = *( start + 3 );
+ register uint8_t *p;
+ register int components = width >> 1;
+
+ y = height;
+ while( y -- )
{
- uint8_t *p = start + y * stride;
- for ( x = 0; x < width / 2; x ++ )
+ p = start;
+ x = components;
+ while( x -- )
{
- Y = ( Y + *p ++ ) / 2;
- U = ( U + *p ++ ) / 2;
- Y = ( Y + *p ++ ) / 2;
- V = ( V + *p ++ ) / 2;
+ Y = ( Y + *p ++ ) >> 1;
+ U = ( U + *p ++ ) >> 1;
+ Y = ( Y + *p ++ ) >> 1;
+ V = ( V + *p ++ ) >> 1;
}
+ start += stride;
}
- for ( y = 0; y < height; y ++ )
+ start -= height * stride;
+ y = height;
+ while( y -- )
{
- uint8_t *p = start + y * stride;
- for ( x = 0; x < width / 2; x ++ )
+ p = start;
+ x = components;
+ while( x -- )
{
*p ++ = Y;
*p ++ = U;
*p ++ = Y;
*p ++ = V;
}
+ start += stride;
}
}
int mh = result.mask_h;
int w;
int h;
+ int aw;
+ int ah;
uint8_t *p = image + area_y * width * 2 + area_x * 2;
{
for ( h = 0; h < area_h; h += mh )
{
- int aw = w + mw > area_w ? mw - ( w + mw - area_w ) : mw;
- int ah = h + mh > area_h ? mh - ( h + mh - area_h ) : mh;
- if ( aw > 1 && ah > 1 );
- obscure_average( p + h * width * 2 + w * 2, aw, ah, width * 2 );
+ aw = w + mw > area_w ? mw - ( w + mw - area_w ) : mw;
+ ah = h + mh > area_h ? mh - ( h + mh - area_h ) : mh;
+ if ( aw > 1 && ah > 1 )
+ obscure_average( p + h * ( width << 1 ) + ( w << 1 ), aw, ah, width << 1 );
}
}
}
static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Get the frame properties
- mlt_properties frame_properties = mlt_frame_properties( frame );
-
- // Fetch the obscure stack for this frame
- mlt_deque deque = mlt_properties_get_data( frame_properties, "filter_obscure", NULL );
+ mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame );
// Pop the top of stack now
- mlt_filter this = mlt_deque_pop_back( deque );
+ mlt_filter this = mlt_frame_pop_service( frame );
+
+ // Get the image from the frame
+ int error = mlt_frame_get_image( frame, image, format, width, height, 1 );
// Get the image from the frame
- if ( mlt_frame_get_image( frame, image, format, width, height, 1 ) == 0 )
+ if ( error == 0 && *format == mlt_image_yuv422 )
{
if ( this != NULL )
{
// Get the filter properties
- mlt_properties properties = mlt_filter_properties( this );
+ mlt_properties properties = MLT_FILTER_PROPERTIES( this );
// Obtain the normalised width and height from the frame
int normalised_width = mlt_properties_get_int( frame_properties, "normalised_width" );
struct geometry_s start;
struct geometry_s end;
- // Calculate the position
- float position = position_calculate( this, frame );
+ // Retrieve the position
+ float position = mlt_properties_get_double(frame_properties, "filter_position");
// Now parse the geometries
geometry_parse( &start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
}
}
- return 0;
+ return error;
}
/** Filter processing.
static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
{
- // Get the frame properties
- mlt_properties frame_properties = mlt_frame_properties( frame );
-
- // Fetch the obscure stack for this frame
- mlt_deque deque = mlt_properties_get_data( frame_properties, "filter_obscure", NULL );
-
- // Create stack if necessary
- if ( deque == NULL )
- {
- // Create the deque
- deque = mlt_deque_init( );
-
- // Assign to the frame
- mlt_properties_set_data( frame_properties, "filter_obscure", deque, 0, ( mlt_destructor )mlt_deque_close, NULL );
- }
-
- // Push this on to the obscure stack
- mlt_deque_push_back( deque, this );
+ // Push this on to the service stack
+ mlt_frame_push_service( frame, this );
+ // Calculate the position for the filter effect
+ float position = position_calculate( this, frame );
+ mlt_properties_set_double( MLT_FRAME_PROPERTIES( frame ), "filter_position", position );
+
// Push the get image call
mlt_frame_push_get_image( frame, filter_get_image );
mlt_filter filter_obscure_init( void *arg )
{
- mlt_filter this = calloc( 1, sizeof( struct mlt_filter_s ) );
- mlt_properties properties = mlt_filter_properties( this );
- mlt_filter_init( this, NULL );
- this->process = filter_process;
- mlt_properties_set( properties, "start", arg != NULL ? arg : "0%,0%:100%x100%" );
- mlt_properties_set( properties, "end", "" );
+ mlt_filter this = mlt_filter_new( );
+ if ( this != NULL )
+ {
+ mlt_properties properties = MLT_FILTER_PROPERTIES( this );
+ this->process = filter_process;
+ mlt_properties_set( properties, "start", arg != NULL ? arg : "0%,0%:100%x100%" );
+ mlt_properties_set( properties, "end", "" );
+ }
return this;
}
projects / melted / blobdiff