2 * factory.c -- the factory method interfaces
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Dan Dennedy <dan@dennedy.org>
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 <framework/mlt.h>
31 extern mlt_consumer consumer_jack_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg );
34 #include "plugin_mgr.h"
36 extern mlt_filter filter_jackrack_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg );
37 extern mlt_filter filter_ladspa_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg );
39 plugin_mgr_t *g_jackrack_plugin_mgr = NULL;
42 static mlt_properties metadata( mlt_service_type type, const char *id, char *data )
44 char file[ PATH_MAX ];
45 snprintf( file, PATH_MAX, "%s/jackrack/%s",
46 mlt_environment( "MLT_DATA" ), strncmp( id, "ladspa.", 7 ) ? data : "filter_ladspa.yml" );
47 mlt_properties result = mlt_properties_parse_yaml( file );
50 if ( !strncmp( id, "ladspa.", 7 ) )
52 // Annotate the yaml properties with ladspa control port info.
53 plugin_desc_t *desc = plugin_mgr_get_any_desc( g_jackrack_plugin_mgr, strtol( id + 7, NULL, 10 ) );
57 mlt_properties params = mlt_properties_new();
62 mlt_properties_set( result, "identifier", id );
63 mlt_properties_set( result, "title", desc->name );
64 mlt_properties_set( result, "creator", desc->maker ? desc->maker : "unknown" );
65 mlt_properties_set( result, "description", "LADSPA plugin" );
66 mlt_properties_set_data( result, "parameters", params, 0, (mlt_destructor) mlt_properties_close, NULL );
67 for ( i = 0; i < desc->control_port_count; i++ )
69 int j = desc->control_port_indicies[i];
70 LADSPA_Data sample_rate = 48000;
71 LADSPA_PortRangeHintDescriptor hint_descriptor = desc->port_range_hints[j].HintDescriptor;
73 p = mlt_properties_new();
74 snprintf( key, sizeof(key), "%d", i );
75 mlt_properties_set_data( params, key, p, 0, (mlt_destructor) mlt_properties_close, NULL );
76 snprintf( key, sizeof(key), "%d", j );
77 mlt_properties_set( p, "identifier", key );
78 mlt_properties_set( p, "title", desc->port_names[ j ] );
79 if ( LADSPA_IS_HINT_INTEGER( hint_descriptor ) )
81 mlt_properties_set( p, "type", "integer" );
82 mlt_properties_set_int( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
84 else if ( LADSPA_IS_HINT_TOGGLED( hint_descriptor ) )
86 mlt_properties_set( p, "type", "boolean" );
87 mlt_properties_set_int( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
91 mlt_properties_set( p, "type", "float" );
92 mlt_properties_set_double( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
94 /* set upper and lower, possibly adjusted to the sample rate */
95 if ( LADSPA_IS_HINT_BOUNDED_BELOW( hint_descriptor ) )
97 LADSPA_Data lower = desc->port_range_hints[j].LowerBound;
98 if ( LADSPA_IS_HINT_SAMPLE_RATE( hint_descriptor ) )
100 if ( LADSPA_IS_HINT_LOGARITHMIC( hint_descriptor ) )
102 if (lower < FLT_EPSILON)
105 mlt_properties_set_double( p, "minimum", lower );
107 if ( LADSPA_IS_HINT_BOUNDED_ABOVE( hint_descriptor ) )
109 LADSPA_Data upper = desc->port_range_hints[j].UpperBound;
110 if ( LADSPA_IS_HINT_SAMPLE_RATE( hint_descriptor ) )
111 upper *= sample_rate;
112 mlt_properties_set_double( p, "maximum", upper );
114 if ( LADSPA_IS_HINT_LOGARITHMIC( hint_descriptor ) )
115 mlt_properties_set( p, "scale", "log" );
117 p = mlt_properties_new();
118 snprintf( key, sizeof(key), "%d", i );
119 mlt_properties_set_data( params, key, p, 0, (mlt_destructor) mlt_properties_close, NULL );
120 mlt_properties_set( p, "identifier", "wetness" );
121 mlt_properties_set( p, "title", "Wet/Dry" );
122 mlt_properties_set( p, "type", "float" );
123 mlt_properties_set_double( p, "default", 1 );
124 mlt_properties_set_double( p, "minimum", 0 );
125 mlt_properties_set_double( p, "maximum", 1 );
137 g_jackrack_plugin_mgr = plugin_mgr_new();
139 for ( list = g_jackrack_plugin_mgr->all_plugins; list; list = g_slist_next( list ) )
141 plugin_desc_t *desc = (plugin_desc_t *) list->data;
142 char *s = malloc( strlen( "ladpsa." ) + 21 );
144 sprintf( s, "ladspa.%lu", desc->id );
145 MLT_REGISTER( filter_type, s, filter_ladspa_init );
146 MLT_REGISTER_METADATA( filter_type, s, metadata, NULL );
149 mlt_factory_register_for_clean_up( g_jackrack_plugin_mgr, (mlt_destructor) plugin_mgr_destroy );
151 MLT_REGISTER( filter_type, "jackrack", filter_jackrack_init );
152 MLT_REGISTER_METADATA( filter_type, "jackrack", metadata, "filter_jackrack.yml" );
153 MLT_REGISTER( filter_type, "ladspa", filter_ladspa_init );
154 MLT_REGISTER_METADATA( filter_type, "ladspa", metadata, "filter_ladspa.yml" );
156 MLT_REGISTER( consumer_type, "jack", consumer_jack_init );
157 MLT_REGISTER_METADATA( consumer_type, "jack", metadata, "consumer_jack.yml" );