Attachment #641808 for bug #716008

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++ b/ext/lv2/gstlv2.c

#error "Unsupported OS"
#endif

LilvWorld *gst_lv2_world_node = NULL;
LilvNode *gst_lv2_audio_node = NULL;
LilvNode *gst_lv2_control_node = NULL;
LilvNode *gst_lv2_cv_node = NULL;
LilvNode *gst_lv2_event_node = NULL;
LilvNode *gst_lv2_input_node = NULL;
LilvNode *gst_lv2_output_node = NULL;
LilvNode *gst_lv2_preset_node = NULL;
LilvNode *gst_lv2_state_iface_node = NULL;
LilvNode *gst_lv2_state_uri_node = NULL;

LilvNode *gst_lv2_integer_prop_node = NULL;
LilvNode *gst_lv2_toggled_prop_node = NULL;
LilvNode *gst_lv2_designation_pred_node = NULL;
LilvNode *gst_lv2_in_place_broken_pred_node = NULL;
LilvNode *gst_lv2_optional_pred_node = NULL;
LilvNode *gst_lv2_group_pred_node = NULL;
LilvNode *gst_lv2_supports_event_pred_node = NULL;
LilvNode *gst_lv2_label_pred_node = NULL;

LilvNode *gst_lv2_center_role_node = NULL;
LilvNode *gst_lv2_left_role_node = NULL;
LilvNode *gst_lv2_right_role_node = NULL;
LilvNode *gst_lv2_rear_center_role_node = NULL;
LilvNode *gst_lv2_rear_left_role_node = NULL;
LilvNode *gst_lv2_rear_right_role_node = NULL;
LilvNode *gst_lv2_lfe_role_node = NULL;
LilvNode *gst_lv2_center_left_role_node = NULL;
LilvNode *gst_lv2_center_right_role_node = NULL;
LilvNode *gst_lv2_side_left_role_node = NULL;
LilvNode *gst_lv2_side_right_role_node = NULL;

GstStructure *lv2_meta_all = NULL;

static void

  for (i = 0; i < lilv_plugin_get_num_ports (lv2plugin); i++) {
    const LilvPort *port = lilv_plugin_get_port_by_index (lv2plugin, i);

    if (lilv_port_is_a (lv2plugin, port, gst_lv2_audio_node)) {
      const gboolean is_input =
          lilv_port_is_a (lv2plugin, port, gst_lv2_input_node);
      LilvNodes *lv2group =
          lilv_port_get (lv2plugin, port, gst_lv2_group_pred_node);

      if (lv2group) {
        const gchar *uri = lilv_node_as_uri (lv2group);

        (*audio_in)++;
      else
        (*audio_out)++;
    } else if (lilv_port_is_a (lv2plugin, port, gst_lv2_control_node) ||
        lilv_port_is_a (lv2plugin, port, gst_lv2_cv_node)) {
      (*control)++;
    }
  }

{
  guint audio_in, audio_out, control;
  LilvIter *i;
  const LilvPlugins *plugins = lilv_world_get_all_plugins (gst_lv2_world_node);

  for (i = lilv_plugins_begin (plugins); !lilv_plugins_is_end (plugins, i);
      i = lilv_plugins_next (plugins, i)) {

    }

    /* check supported extensions */
    can_do_presets =
        lilv_plugin_has_extension_data (lv2plugin, gst_lv2_state_iface_node)
        || lilv_plugin_has_feature (lv2plugin, gst_lv2_state_uri_node)
        || (control > 0);
    GST_INFO ("plugin %s can%s do presets", type_name,
        (can_do_presets ? "" : "'t"));

  GST_DEBUG_CATEGORY_INIT (lv2_debug, "lv2",
      GST_DEBUG_FG_GREEN | GST_DEBUG_BG_BLACK | GST_DEBUG_BOLD, "LV2");

  gst_lv2_world_node = lilv_world_new ();
  lilv_world_load_all (gst_lv2_world_node);
  gst_lv2_host_init ();

/* have been added after lilv-0.22.0, which is the last release */

#define LILV_URI_CV_PORT      "http://lv2plug.in/ns/lv2core#CVPort"
#endif

  gst_lv2_audio_node = lilv_new_uri (gst_lv2_world_node, LILV_URI_AUDIO_PORT);
  gst_lv2_control_node =
      lilv_new_uri (gst_lv2_world_node, LILV_URI_CONTROL_PORT);
  gst_lv2_cv_node = lilv_new_uri (gst_lv2_world_node, LILV_URI_CV_PORT);
  gst_lv2_event_node = lilv_new_uri (gst_lv2_world_node, LILV_URI_EVENT_PORT);
  gst_lv2_input_node = lilv_new_uri (gst_lv2_world_node, LILV_URI_INPUT_PORT);
  gst_lv2_output_node = lilv_new_uri (gst_lv2_world_node, LILV_URI_OUTPUT_PORT);
  gst_lv2_preset_node = lilv_new_uri (gst_lv2_world_node, LV2_PRESETS__Preset);
  gst_lv2_state_iface_node =
      lilv_new_uri (gst_lv2_world_node, LV2_STATE__interface);
  gst_lv2_state_uri_node = lilv_new_uri (gst_lv2_world_node, LV2_STATE_URI);

  gst_lv2_integer_prop_node =
      lilv_new_uri (gst_lv2_world_node, LV2_CORE__integer);
  gst_lv2_toggled_prop_node =
      lilv_new_uri (gst_lv2_world_node, LV2_CORE__toggled);
  gst_lv2_designation_pred_node =
      lilv_new_uri (gst_lv2_world_node, LV2_CORE__designation);
  gst_lv2_in_place_broken_pred_node =
      lilv_new_uri (gst_lv2_world_node, LV2_CORE__inPlaceBroken);
  gst_lv2_optional_pred_node =
      lilv_new_uri (gst_lv2_world_node, LV2_CORE__optionalFeature);
  gst_lv2_group_pred_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__group);
  gst_lv2_supports_event_pred_node =
      lilv_new_uri (gst_lv2_world_node, LV2_EVENT__supportsEvent);
  gst_lv2_label_pred_node =
      lilv_new_uri (gst_lv2_world_node, LILV_NS_RDFS "label");

  gst_lv2_center_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__center);
  gst_lv2_left_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__left);
  gst_lv2_right_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__right);
  gst_lv2_rear_center_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__rearCenter);
  gst_lv2_rear_left_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__rearLeft);
  gst_lv2_rear_right_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__rearRight);
  gst_lv2_lfe_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__lowFrequencyEffects);
  gst_lv2_center_left_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__centerLeft);
  gst_lv2_center_right_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__centerRight);
  gst_lv2_side_left_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__sideLeft);
  gst_lv2_side_right_role_node =
      lilv_new_uri (gst_lv2_world_node, LV2_PORT_GROUPS__sideRight);

  gst_plugin_add_dependency_simple (plugin,
      "LV2_PATH:" GST_LV2_ENVVARS, GST_LV2_DEFAULT_PATH, NULL,

#endif
     static void plugin_cleanup (GstPlugin * plugin)
{
  lilv_node_free (gst_lv2_audio_node);
  lilv_node_free (gst_lv2_control_node);
  lilv_node_free (gst_lv2_cv_node);
  lilv_node_free (gst_lv2_event_node);
  lilv_node_free (gst_lv2_input_node);
  lilv_node_free (gst_lv2_output_node);
  lilv_node_free (gst_lv2_preset_node);
  lilv_node_free (gst_lv2_state_iface_node);
  lilv_node_free (gst_lv2_state_uri_node);

  lilv_node_free (gst_lv2_integer_prop_node);
  lilv_node_free (gst_lv2_toggled_prop_node);
  lilv_node_free (gst_lv2_designation_pred_node);
  lilv_node_free (gst_lv2_in_place_broken_pred_node);
  lilv_node_free (gst_lv2_optional_pred_node);
  lilv_node_free (gst_lv2_group_pred_node);
  lilv_node_free (gst_lv2_supports_event_pred_node);
  lilv_node_free (gst_lv2_label_pred_node);

  lilv_node_free (gst_lv2_center_role_node);
  lilv_node_free (gst_lv2_left_role_node);
  lilv_node_free (gst_lv2_right_role_node);
  lilv_node_free (gst_lv2_rear_center_role_node);
  lilv_node_free (gst_lv2_rear_left_role_node);
  lilv_node_free (gst_lv2_rear_right_role_node);
  lilv_node_free (gst_lv2_lfe_role_node);
  lilv_node_free (gst_lv2_center_left_role_node);
  lilv_node_free (gst_lv2_center_right_role_node);
  lilv_node_free (gst_lv2_side_left_role_node);
  lilv_node_free (gst_lv2_side_right_role_node);
  lilv_node_free (side_right_role);

  lilv_world_free (gst_lv2_world_node);
}

GST_PLUGIN_DEFINE (GST_VERSION_MAJOR,
++ b/ext/lv2/gstlv2filter.c

gst_lv2_filter_role_to_position (LilvNode * role)
{
  /* Front.  Mono and left/right are mututally exclusive */
  if (lilv_node_equals (role, gst_lv2_center_role_node)) {

    return GST_AUDIO_CHANNEL_POSITION_FRONT_CENTER;
  } else if (lilv_node_equals (role, gst_lv2_left_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
  } else if (lilv_node_equals (role, gst_lv2_right_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT;

    /* Rear. Left/right and center are mututally exclusive */
  } else if (lilv_node_equals (role, gst_lv2_rear_center_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_REAR_CENTER;
  } else if (lilv_node_equals (role, gst_lv2_rear_left_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_REAR_LEFT;
  } else if (lilv_node_equals (role, gst_lv2_rear_right_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_REAR_RIGHT;

    /* Subwoofer/low-frequency-effects */
  } else if (lilv_node_equals (role, gst_lv2_lfe_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_LFE1;

    /* Center front speakers. Center and left/right_of_center
     * are mutually exclusive */
  } else if (lilv_node_equals (role, gst_lv2_center_left_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT_OF_CENTER;
  } else if (lilv_node_equals (role, gst_lv2_center_right_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_FRONT_RIGHT_OF_CENTER;

    /* sides */
  } else if (lilv_node_equals (role, gst_lv2_side_left_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_SIDE_LEFT;
  } else if (lilv_node_equals (role, gst_lv2_side_right_role_node)) {
    return GST_AUDIO_CHANNEL_POSITION_SIDE_RIGHT;
  }


{
  gst_lv2_init (&self->lv2, &klass->lv2);

  if (!lilv_plugin_has_feature (klass->lv2.plugin,
          gst_lv2_in_place_broken_pred_node))
    gst_base_transform_set_in_place (GST_BASE_TRANSFORM (self), TRUE);
}

++ b/ext/lv2/gstlv2.h


#include "gstlv2utils.h"

G_GNUC_INTERNAL extern LilvWorld *gst_lv2_world_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_audio_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_control_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_cv_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_event_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_input_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_output_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_preset_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_state_iface_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_state_uri_node;

G_GNUC_INTERNAL extern LilvNode *gst_lv2_integer_prop_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_toggled_prop_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_designation_pred_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_in_place_broken_pred_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_optional_pred_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_group_pred_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_supports_event_pred_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_label_pred_node;

G_GNUC_INTERNAL extern LilvNode *gst_lv2_center_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_left_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_right_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_rear_center_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_rear_left_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_rear_right_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_lfe_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_center_left_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_center_right_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_side_left_role_node;
G_GNUC_INTERNAL extern LilvNode *gst_lv2_side_right_role_node;
LilvNode *side_right_role;

G_GNUC_INTERNAL extern GstStructure *lv2_meta_all;

void gst_lv2_filter_register_element (GstPlugin *plugin,
                                      GstStructure * lv2_meta);
++ b/ext/lv2/gstlv2utils.c

  if (!lv2->presets) {
    LilvNodes *presets;

    if ((presets =
            lilv_plugin_get_related (lv2->klass->plugin,
                gst_lv2_preset_node))) {
      LilvIter *j;

      lv2->presets = g_hash_table_new_full (g_str_hash, g_str_equal, g_free,

        const LilvNode *preset = lilv_nodes_get (presets, j);
        LilvNodes *titles;

        lilv_world_load_resource (gst_lv2_world_node, preset);
        titles =
            lilv_world_find_nodes (gst_lv2_world_node, preset,
            gst_lv2_label_pred_node, NULL);
        if (titles) {
          const LilvNode *title = lilv_nodes_get_first (titles);
          g_hash_table_insert (lv2->presets,

gst_lv2_load_preset (GstLV2 * lv2, GstObject * obj, const gchar * name)
{
  LilvNode *preset = g_hash_table_lookup (lv2->presets, name);
  LilvState *state =
      lilv_state_new_from_world (gst_lv2_world_node, &lv2_map, preset);
  gpointer user_data[] = { lv2->klass, obj };

  GST_INFO_OBJECT (obj, "loading preset <%s>", lilv_node_as_string (preset));

  gpointer user_data[] = { lv2->klass, obj };
  LilvState *state;
  LilvNode *bundle_dir;
  const LilvNode *gst_lv2_state_uri_node;
  LilvInstance *instance = lv2->instance;
  gboolean res;
#ifndef HAVE_LILV_0_22


  lilv_state_set_label (state, name);

  res = lilv_state_save (gst_lv2_world_node, &lv2_map, &lv2_unmap, state,       /*uri */
      NULL, dir, filename) != 0;

  /* reload bundle into the gst_lv2_world_node */
  bundle_dir = lilv_new_file_uri (gst_lv2_world_node, NULL, dir);
  lilv_world_unload_bundle (gst_lv2_world_node, bundle_dir);
  lilv_world_load_bundle (gst_lv2_world_node, bundle_dir);
  lilv_node_free (bundle_dir);

#ifdef HAVE_LILV_0_22
  gst_lv2_state_uri_node = lilv_state_get_uri (state);
#else
  filepath = g_build_filename (dir, filename, NULL);
  gst_lv2_state_uri_node = lilv_new_uri (gst_lv2_world_node, filepath);
  g_free (filepath);
#endif
  lilv_world_load_resource (gst_lv2_world_node, gst_lv2_state_uri_node);
  g_hash_table_insert (lv2->presets, g_strdup (name),
      lilv_node_duplicate (gst_lv2_state_uri_node));
#ifndef HAVE_LILV_0_22
  lilv_node_free ((LilvNode *) gst_lv2_state_uri_node);
#endif

  lilv_state_free (state);

{
#ifdef HAVE_LILV_0_22
  LilvNode *preset = g_hash_table_lookup (lv2->presets, name);
  LilvState *state =
      lilv_state_new_from_world (gst_lv2_world_node, &lv2_map, preset);

  lilv_world_unload_resource (gst_lv2_world_node, lilv_state_get_uri (state));
  lilv_state_delete (gst_lv2_world_node, state);
  lilv_state_free (state);
#endif
  g_hash_table_remove (lv2->presets, name);

      lilv_node_as_string (lilv_plugin_get_uri (lv2plugin)), name, nick);

  perms = G_PARAM_READABLE;
  if (lilv_port_is_a (lv2plugin, port, gst_lv2_input_node))
    perms |= G_PARAM_WRITABLE | G_PARAM_CONSTRUCT;
  if (lilv_port_is_a (lv2plugin, port, gst_lv2_control_node) ||
      lilv_port_is_a (lv2plugin, port, gst_lv2_cv_node))
    perms |= GST_PARAM_CONTROLLABLE;

  if (lilv_port_has_property (lv2plugin, port, gst_lv2_toggled_prop_node)) {
    ret = g_param_spec_boolean (name, nick, nick, FALSE, perms);
    goto done;
  }


  if (enum_type != G_TYPE_INVALID) {
    ret = g_param_spec_enum (name, nick, nick, enum_type, def, perms);
  } else if (lilv_port_has_property (lv2plugin, port,
          gst_lv2_integer_prop_node))
    ret = g_param_spec_int (name, nick, nick, lower, upper, def, perms);
  else
    ret = g_param_spec_float (name, nick, nick, lower, upper, def, perms);

  GstStructure *lv2_meta = g_value_get_boxed (value);
  const LilvPlugin *lv2plugin;
  guint j, in_pad_index = 0, out_pad_index = 0;
  const LilvPlugins *plugins = lilv_world_get_all_plugins (gst_lv2_world_node);
  LilvNode *plugin_uri;
  const gchar *element_uri;

  GST_DEBUG ("LV2 initializing class");

  element_uri = gst_structure_get_string (lv2_meta, "element-uri");
  plugin_uri = lilv_new_uri (gst_lv2_world_node, element_uri);
  g_assert (plugin_uri);
  lv2plugin = lilv_plugins_get_by_uri (plugins, plugin_uri);
  g_assert (lv2plugin);

  /* find ports and groups */
  for (j = 0; j < lilv_plugin_get_num_ports (lv2plugin); j++) {
    const LilvPort *port = lilv_plugin_get_port_by_index (lv2plugin, j);
    const gboolean is_input =
        lilv_port_is_a (lv2plugin, port, gst_lv2_input_node);
    const gboolean is_optional = lilv_port_has_property (lv2plugin, port,
        gst_lv2_optional_pred_node);
    GstLV2Port desc = { j, GST_LV2_PORT_AUDIO, -1, };
    LilvNodes *lv2group =
        lilv_port_get (lv2plugin, port, gst_lv2_group_pred_node);
    /* FIXME Handle channels positionning
     * GstAudioChannelPosition position = GST_AUDIO_CHANNEL_POSITION_INVALID; */



      /* FIXME Handle channels positionning
         position = GST_AUDIO_CHANNEL_POSITION_FRONT_LEFT;
         sub_values = lilv_port_get_value (lv2plugin, port, gst_lv2_designation_pred_node);
         if (lilv_nodes_size (sub_values) > 0) {
         LilvNode *role = lilv_nodes_get_at (sub_values, 0);
         position = gst_lv2_filter_role_to_position (role);

    } else {
      /* port is not part of a group, or it is part of a group but that group
       * is illegal so we just ignore it */
      if (lilv_port_is_a (lv2plugin, port, gst_lv2_audio_node)) {
        if (is_input) {
          desc.pad = in_pad_index++;
          g_array_append_val (lv2_class->in_group.ports, desc);

          desc.pad = out_pad_index++;
          g_array_append_val (lv2_class->out_group.ports, desc);
        }
      } else if (lilv_port_is_a (lv2plugin, port, gst_lv2_control_node)) {
        desc.type = GST_LV2_PORT_CONTROL;
        if (is_input) {
          lv2_class->num_control_in++;

          lv2_class->num_control_out++;
          g_array_append_val (lv2_class->control_out_ports, desc);
        }
      } else if (lilv_port_is_a (lv2plugin, port, gst_lv2_cv_node)) {
        desc.type = GST_LV2_PORT_CV;
        if (is_input) {
          lv2_class->num_cv_in++;

          lv2_class->num_cv_out++;
          g_array_append_val (lv2_class->control_out_ports, desc);
        }
      } else if (lilv_port_is_a (lv2plugin, port, gst_lv2_event_node)) {
        LilvNodes *supported = lilv_port_get_value (lv2plugin, port,
            gst_lv2_supports_event_pred_node);

        GST_INFO ("%s: unhandled event port %d: %s, optional=%d, input=%d",
            element_uri, j,

Return to bug 716008