2 * filter_frei0r.c -- frei0r filter
3 * Copyright (c) 2008 Marco Gittler <g.marco@freenet.de>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 #include <framework/mlt.h>
22 #include "frei0r_helper.h"
24 static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
27 mlt_filter filter = mlt_frame_pop_service( this );
28 mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
29 *format = mlt_image_rgb24a;
30 mlt_log_debug( MLT_FILTER_SERVICE( filter ), "frei0r %dx%d\n", *width, *height );
31 int error = mlt_frame_get_image( this, image, format, width, height, 0 );
33 if ( error == 0 && *image )
35 mlt_position length = mlt_filter_get_out( filter ) - mlt_filter_get_in( filter ) + 1;
36 mlt_position time = mlt_properties_get_position( properties, "_filter_position" );
37 double position = ( double )( time ) / ( double )( length );
39 process_frei0r_item( filter_type, position, properties, this, image, width, height );
47 mlt_frame filter_process( mlt_filter this, mlt_frame frame )
49 mlt_frame_push_service( frame, this );
50 // Determine the time position of this frame
51 mlt_properties_set_position( MLT_FILTER_PROPERTIES( this ), "_filter_position", mlt_frame_get_position( frame ) - mlt_filter_get_in( this ) );
53 mlt_frame_push_get_image( frame, filter_get_image );
57 void filter_close( mlt_filter this )
59 destruct( MLT_FILTER_PROPERTIES ( this ) );