Add mapper

Ger rid of static ids for interfaces and replace with something we can
register dynamically
Implement logger.

spa/lib/mapper.c

@@ -0,0 +1,89 @@
+/* Simple Plugin API
+ * Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <stdint.h>
+#include <stddef.h>
+#include <stdio.h>
+#include <string.h>
+
+#include <spa/id-map.h>
+#include <spa/log.h>
+#include <spa/buffer.h>
+#include <spa/clock.h>
+#include <spa/format.h>
+#include <spa/monitor.h>
+#include <spa/node.h>
+#include <spa/node-command.h>
+#include <spa/node-event.h>
+#include <spa/port.h>
+#include <spa/props.h>
+#include <spa/queue.h>
+#include <spa/ringbuffer.h>
+#include <spa/debug.h>
+
+static const char *uris[] = {
+  NULL,
+  SPA_ID_MAP_URI,
+  SPA_LOG_URI,
+  SPA_BUFFER_URI,
+  SPA_CLOCK_URI,
+  SPA_MONITOR_URI,
+  SPA_NODE_URI,
+  SPA_NODE_COMMAND_URI,
+  SPA_NODE_EVENT_URI,
+  SPA_ALLOC_PARAM_URI,
+  SPA_PROPS_URI,
+  SPA_QUEUE_URI,
+  SPA_RINGBUFFER_URI,
+};
+
+static uint32_t
+id_map_get_id (SpaIDMap *map, const char *uri)
+{
+  if (uri != NULL) {
+    unsigned int i;
+    for (i = 1; i < SPA_N_ELEMENTS (uris); i++) {
+      if (strcmp (uris[i], uri) == 0)
+        return i;
+    }
+  }
+  return 0;
+}
+
+static const char *
+id_map_get_uri (SpaIDMap *map, uint32_t id)
+{
+  if (id < SPA_N_ELEMENTS (uris))
+    return uris[id];
+  return 0;
+}
+
+static const SpaIDMap default_map = {
+  NULL,
+  sizeof (SpaIDMap),
+  NULL,
+  id_map_get_id,
+  id_map_get_uri,
+};
+
+SpaIDMap *
+spa_id_map_get_default (void)
+{
+  return (SpaIDMap *) &default_map;
+}

spa/lib/meson.build

@@ -3,6 +3,7 @@ spalib_sources = ['audio-raw.c',
                   'control.c',
                   'debug.c',
                   'format.c',
+                  'mapper.c',
                   'port.c',
                   'props.c',
                   'ringbuffer.c',