git.sesse.net Git - mlt/blob - src/modules/jackrack/factory.c

   1 /*
   2  * factory.c -- the factory method interfaces
   3  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
   4  * Author: Dan Dennedy <dan@dennedy.org>
   5  *
   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.
  10  *
  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.
  15  *
  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.
  19  */
  20
  21 #include <framework/mlt.h>
  22 #include <ladspa.h>
  23
  24 #include <string.h>
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <limits.h>
  28 #include <float.h>
  29
  30
  31 extern mlt_consumer consumer_jack_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg );
  32
  33 #ifdef GPL
  34 #include "plugin_mgr.h"
  35
  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 );
  38
  39 plugin_mgr_t *g_jackrack_plugin_mgr = NULL;
  40 #endif
  41
  42 static mlt_properties metadata( mlt_service_type type, const char *id, char *data )
  43 {
  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 );
  48
  49 #ifdef GPL
  50         if ( !strncmp( id, "ladspa.", 7 ) )
  51         {
  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 ) );
  54
  55                 if ( desc )
  56                 {
  57                         mlt_properties params = mlt_properties_new();
  58                         mlt_properties p;
  59                         char key[20];
  60                         int i;
  61
  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++ )
  68                         {
  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;
  72
  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 ) )
  80                                 {
  81                                         mlt_properties_set( p, "type", "integer" );
  82                                         mlt_properties_set_int( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
  83                                 }
  84                                 else if ( LADSPA_IS_HINT_TOGGLED( hint_descriptor ) )
  85                                 {
  86                                         mlt_properties_set( p, "type", "boolean" );
  87                                         mlt_properties_set_int( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
  88                                 }
  89                                 else
  90                                 {
  91                                         mlt_properties_set( p, "type", "float" );
  92                                         mlt_properties_set_double( p, "default", plugin_desc_get_default_control_value( desc, j, sample_rate ) );
  93                                 }
  94                                 /* set upper and lower, possibly adjusted to the sample rate */
  95                                 if ( LADSPA_IS_HINT_BOUNDED_BELOW( hint_descriptor ) )
  96                                 {
  97                                         LADSPA_Data lower = desc->port_range_hints[j].LowerBound;
  98                                         if ( LADSPA_IS_HINT_SAMPLE_RATE( hint_descriptor ) )
  99                                                 lower *= sample_rate;
 100                                         if ( LADSPA_IS_HINT_LOGARITHMIC( hint_descriptor ) )
 101                                         {
 102                                                 if (lower < FLT_EPSILON)
 103                                                         lower = FLT_EPSILON;
 104                                         }
 105                                         mlt_properties_set_double( p, "minimum", lower );
 106                                 }
 107                                 if ( LADSPA_IS_HINT_BOUNDED_ABOVE( hint_descriptor ) )
 108                                 {
 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 );
 113                                 }
 114                                 if ( LADSPA_IS_HINT_LOGARITHMIC( hint_descriptor ) )
 115                                         mlt_properties_set( p, "scale", "log" );
 116                         }
 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 );
 126                 }
 127         }
 128 #endif
 129
 130         return result;
 131 }
 132
 133 MLT_REPOSITORY
 134 {
 135 #ifdef GPL
 136         GSList *list;
 137         g_jackrack_plugin_mgr = plugin_mgr_new();
 138
 139         for ( list = g_jackrack_plugin_mgr->all_plugins; list; list = g_slist_next( list ) )
 140         {
 141                 plugin_desc_t *desc = (plugin_desc_t *) list->data;
 142                 char *s = malloc( strlen( "ladpsa." ) + 21 );
 143
 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 );
 147                 free( s );
 148         }
 149         mlt_factory_register_for_clean_up( g_jackrack_plugin_mgr, (mlt_destructor) plugin_mgr_destroy );
 150
 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" );
 155 #endif
 156         MLT_REGISTER( consumer_type, "jack", consumer_jack_init );
 157         MLT_REGISTER_METADATA( consumer_type, "jack", metadata, "consumer_jack.yml" );
 158 }