2 * filter_white_balance.cpp
3 * Copyright (C) 2013 Dan Dennedy <dan@dennedy.org>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
10 * This program 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
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software Foundation,
17 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 #include <framework/mlt.h>
24 #include "glsl_manager.h"
25 #include <movit/white_balance_effect.h>
27 static mlt_frame process( mlt_filter filter, mlt_frame frame )
29 if ( !mlt_frame_is_test_card( frame ) ) {
30 Effect* effect = GlslManager::get_effect( filter, frame );
32 effect = GlslManager::add_effect( filter, frame, new WhiteBalanceEffect );
34 mlt_properties filter_props = MLT_FILTER_PROPERTIES( filter );
35 int color_int = mlt_properties_get_int( filter_props, "neutral_color" );
37 float((color_int >> 24) & 0xff) / 255.0f,
38 float((color_int >> 16) & 0xff) / 255.0f,
39 float((color_int >> 8) & 0xff) / 255.0f
41 bool ok = effect->set_vec3( "neutral_color", (float*) &color );
42 ok |= effect->set_float( "output_color_temperature", mlt_properties_get_double( filter_props, "color_temperature" ) );
51 mlt_filter filter_white_balance_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
53 mlt_filter filter = NULL;
54 GlslManager* glsl = GlslManager::get_instance();
56 if ( glsl && ( filter = mlt_filter_new() ) ) {
57 mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
58 mlt_properties_set( properties, "neutral_color", arg? arg : "#7f7f7f" );
59 mlt_properties_set_double( properties, "color_temperature", 6500.0 );
60 filter->process = process;