* 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_invert.h"
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
+#include <string.h>
static inline int clamp( int v, int l, int u )
{
static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
{
// Get the image
+ mlt_filter filter = mlt_frame_pop_service( this );
+ int mask = mlt_properties_get_int( MLT_FILTER_PROPERTIES( filter ), "alpha" );
int error = mlt_frame_get_image( this, image, format, width, height, 1 );
// Only process if we have no error and a valid colour space
*p ++ = clamp( 251 - *r ++, 16, 235 );
*p ++ = clamp( 256 - *r ++, 16, 240 );
}
+
+ if ( mask )
+ {
+ uint8_t *alpha = mlt_frame_get_alpha_mask( this );
+ int size = *width * *height;
+ memset( alpha, mask, size );
+ }
}
return error;
static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
{
// Push the frame filter
+ mlt_frame_push_service( frame, this );
mlt_frame_push_get_image( frame, filter_get_image );
return frame;
}