2 * filter_watermark.c -- watermark filter
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
21 #include "filter_watermark.h"
23 #include <framework/mlt_factory.h>
24 #include <framework/mlt_frame.h>
25 #include <framework/mlt_producer.h>
26 #include <framework/mlt_transition.h>
34 static int filter_get_image( mlt_frame
this, uint8_t **image
, mlt_image_format
*format
, int *width
, int *height
, int writable
)
37 mlt_properties frame_properties
= mlt_frame_properties( this );
38 mlt_filter filter
= mlt_properties_get_data( frame_properties
, "watermark", NULL
);
39 mlt_properties properties
= mlt_filter_properties( filter
);
40 mlt_producer producer
= mlt_properties_get_data( properties
, "producer", NULL
);
41 mlt_transition composite
= mlt_properties_get_data( properties
, "composite", NULL
);
43 if ( composite
== NULL
)
45 char *geometry
= mlt_properties_get( properties
, "geometry" );
46 composite
= mlt_factory_transition( "composite", geometry
== NULL ?
"85%,5%:10%x10%" : geometry
);
47 if ( composite
!= NULL
)
49 mlt_properties composite_properties
= mlt_transition_properties( composite
);
50 char *distort
= mlt_properties_get( properties
, "distort" );
51 if ( distort
!= NULL
)
52 mlt_properties_set( composite_properties
, "distort", distort
);
53 mlt_properties_set_data( properties
, "composite", composite
, 0, ( mlt_destructor
)mlt_transition_close
, NULL
);
57 if ( producer
== NULL
)
59 char *resource
= mlt_properties_get( properties
, "resource" );
60 char *factory
= mlt_properties_get( properties
, "factory" );
61 producer
= mlt_factory_producer( factory
, resource
);
62 if ( producer
!= NULL
)
64 mlt_properties producer_properties
= mlt_producer_properties( producer
);
65 mlt_properties_set( producer_properties
, "eof", "loop" );
66 mlt_properties_set_data( properties
, "producer", producer
, 0, ( mlt_destructor
)mlt_producer_close
, NULL
);
70 if ( composite
!= NULL
&& producer
!= NULL
)
72 mlt_service service
= mlt_producer_service( producer
);
73 mlt_frame b_frame
= NULL
;
75 if ( mlt_service_get_frame( service
, &b_frame
, 0 ) == 0 )
76 mlt_transition_process( composite
, this, b_frame
);
78 error
= mlt_frame_get_image( this, image
, format
, width
, height
, 1 );
80 mlt_frame_close( b_frame
);
84 error
= mlt_frame_get_image( this, image
, format
, width
, height
, 1 );
90 /** Filter processing.
93 static mlt_frame
filter_process( mlt_filter
this, mlt_frame frame
)
95 mlt_properties properties
= mlt_frame_properties( frame
);
96 mlt_properties_set_data( properties
, "watermark", this, 0, NULL
, NULL
);
97 mlt_frame_push_get_image( frame
, filter_get_image
);
101 /** Constructor for the filter.
104 mlt_filter
filter_watermark_init( void *arg
)
106 mlt_filter
this = mlt_filter_new( );
109 mlt_properties properties
= mlt_filter_properties( this );
110 this->process
= filter_process
;
111 mlt_properties_set( properties
, "factory", "fezzik" );
113 mlt_properties_set( properties
, "resource", arg
);