C++ (Cpp) slv2_plugins_get_at Examples

Example #1

File: Lv2PluginProvider.cpp Project: Lukas-W/unison

Lv2PluginProvider::Lv2PluginProvider() :
  m_lv2World(),
  m_lv2InfoMap()
{
  qDebug( "Initializing Lv2 Plugin Provider" );

  if (m_lv2World.world == NULL) {
    qWarning(  "Failed to Initialize slv2_world" );
    return;
  }

  // Do Lv2-Plugin discovery

  // slv2_world_load_all( m_world ); // No special path apart from LV2_PATH
  SLV2Plugins lv2PluginList = slv2_world_get_all_plugins( m_lv2World.world );
  size_t lv2PluginListSize = slv2_plugins_size( lv2PluginList );

  // TODO-NOW: Allow user to choose multiple paths
  for (unsigned i=0; i < lv2PluginListSize; ++i) {
    SLV2Plugin p = slv2_plugins_get_at( lv2PluginList, i );
    addLv2Plugin( p );
  }

  qDebug() << "Found" << lv2PluginListSize << "Lv2 plugins.";

  slv2_plugins_free( m_lv2World.world, lv2PluginList );
  qDebug( "Done initializing Lv2 Plugin Provider" );
}

Example #2

File: gstlv2.c Project: JJCG/gst-plugins-bad

/* search the plugin path
 */
static gboolean
lv2_plugin_discover (void)
{
  unsigned i;
  SLV2Plugins plugins = slv2_world_get_all_plugins (world);
  for (i = 0; i < slv2_plugins_size (plugins); ++i) {
    SLV2Plugin lv2plugin = slv2_plugins_get_at (plugins, i);
    GTypeInfo typeinfo = {
      sizeof (GstLV2Class),
      (GBaseInitFunc) gst_lv2_base_init,
      NULL,
      (GClassInitFunc) gst_lv2_class_init,
      NULL,
      lv2plugin,
      sizeof (GstLV2),
      0,
      (GInstanceInitFunc) gst_lv2_init,
    };

    GType type;

    /* construct the type name from plugin URI */
    gchar *type_name = g_strdup_printf ("%s",
        slv2_value_as_uri (slv2_plugin_get_uri (lv2plugin)));
    g_strcanon (type_name, G_CSET_A_2_Z G_CSET_a_2_z G_CSET_DIGITS "-+", '-');

    /* if it's already registered, drop it */
    if (g_type_from_name (type_name))
      goto next;

    /* create the type */
    type =
        g_type_register_static (GST_TYPE_SIGNAL_PROCESSOR, type_name, &typeinfo,
        0);

    /* FIXME: not needed anymore when we can add pad templates, etc in class_init
     * as class_data contains the LADSPA_Descriptor too */
    g_type_set_qdata (type, GST_SLV2_PLUGIN_QDATA, (gpointer) lv2plugin);

    if (!gst_element_register (gst_lv2_plugin, type_name, GST_RANK_NONE, type))
      goto next;

  next:
    g_free (type_name);
  }
  return TRUE;
}