tools/gst-inspect.c (print_all_uri_handlers): New function, prints a summary of what...

Original commit message from CVS:
2008-11-17  Andy Wingo  <wingo@pobox.com>

* tools/gst-inspect.c (print_all_uri_handlers): New function,
prints a summary of what URI schemes are supported by what
elements.
(main): Plumb in support for --uri-handlers or -u, and fix the
argc check for -a and -u.

diff --git a/ChangeLog b/ChangeLog
index 5423326..6c4bd89 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,11 @@
+2008-11-17  Andy Wingo  <wingo@pobox.com>
+
+       * tools/gst-inspect.c (print_all_uri_handlers): New function,
+       prints a summary of what URI schemes are supported by what
+       elements.
+       (main): Plumb in support for --uri-handlers or -u, and fix the
+       argc check for -a and -u.
+
 2008-11-17  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
 
        * gst/gstutils.h:

diff --git a/tools/gst-inspect.c b/tools/gst-inspect.c
index 1fa580d..0d9a658 100644 (file)
--- a/tools/gst-inspect.c
+++ b/tools/gst-inspect.c
@@ -1020,6 +1020,80 @@ print_element_list (gboolean print_all)
 }
 
 static void
+print_all_uri_handlers (void)
+{
+  GList *plugins, *p, *features, *f;
+
+  plugins = gst_default_registry_get_plugin_list ();
+
+  for (p = plugins; p; p = p->next) {
+    GstPlugin *plugin = (GstPlugin *) (p->data);
+
+    features =
+        gst_registry_get_feature_list_by_plugin (gst_registry_get_default (),
+        plugin->desc.name);
+
+    for (f = features; f; f = f->next) {
+      GstPluginFeature *feature = GST_PLUGIN_FEATURE (features->data);
+
+      if (GST_IS_ELEMENT_FACTORY (feature)) {
+        GstElementFactory *factory;
+        GstElement *element;
+
+        factory = GST_ELEMENT_FACTORY (gst_plugin_feature_load (feature));
+        if (!factory) {
+          g_print ("element plugin %s couldn't be loaded\n", plugin->desc.name);
+          continue;
+        }
+
+        element = gst_element_factory_create (factory, NULL);
+        if (!element) {
+          g_print ("couldn't construct element for %s for some reason\n",
+              GST_OBJECT_NAME (factory));
+          gst_object_unref (factory);
+          continue;
+        }
+
+        if (GST_IS_URI_HANDLER (element)) {
+          const gchar *dir;
+          gchar **uri_protocols, *joined;
+
+          switch (gst_uri_handler_get_uri_type (GST_URI_HANDLER (element))) {
+            case GST_URI_SRC:
+              dir = "read";
+              break;
+            case GST_URI_SINK:
+              dir = "write";
+              break;
+            default:
+              dir = "unknown";
+              break;
+          }
+
+          uri_protocols =
+              gst_uri_handler_get_protocols (GST_URI_HANDLER (element));
+          joined = g_strjoinv (", ", uri_protocols);
+
+          g_print ("%s (%s, rank %u): %s\n", GST_OBJECT_NAME (factory), dir,
+              gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)),
+              joined);
+
+          g_free (joined);
+          //g_strfreev (uri_protocols);
+        }
+
+        gst_object_unref (element);
+        gst_object_unref (factory);
+      }
+    }
+
+    gst_plugin_feature_list_free (features);
+  }
+
+  gst_plugin_list_free (plugins);
+}
+
+static void
 print_plugin_info (GstPlugin * plugin)
 {
   n_print ("Plugin Details:\n");
@@ -1320,6 +1394,7 @@ main (int argc, char *argv[])
   gboolean print_all = FALSE;
   gboolean plugin_name = FALSE;
   gboolean print_aii = FALSE;
+  gboolean uri_handlers = FALSE;
   GOptionEntry options[] = {
     {"print-all", 'a', 0, G_OPTION_ARG_NONE, &print_all,
         N_("Print all elements"), NULL},
@@ -1330,6 +1405,10 @@ main (int argc, char *argv[])
               "installation mechanisms"), NULL},
     {"plugin", '\0', 0, G_OPTION_ARG_NONE, &plugin_name,
         N_("List the plugin contents"), NULL},
+    {"uri-handlers", 'u', 0, G_OPTION_ARG_NONE, &uri_handlers,
+          N_
+          ("Print supported URI schemes, with the elements that implement them"),
+        NULL},
     GST_TOOLS_GOPTION_VERSION,
     {NULL}
   };
@@ -1356,16 +1435,23 @@ main (int argc, char *argv[])
 
   gst_tools_print_version ("gst-inspect");
 
-  if (print_all && argc > 2) {
+  if (print_all && argc > 1) {
     g_print ("-a requires no extra arguments\n");
     return 1;
   }
 
+  if (uri_handlers && argc > 1) {
+    g_print ("-u requires no extra arguments\n");
+    exit (1);
+  }
+
   /* if no arguments, print out list of elements */
-  if (argc == 1 || print_all) {
+  if (uri_handlers) {
+    print_all_uri_handlers ();
+  } else if (argc == 1 || print_all) {
     print_element_list (print_all);
-    /* else we try to get a factory */
   } else {
+    /* else we try to get a factory */
     GstElementFactory *factory;
     GstPlugin *plugin;
     const char *arg = argv[argc - 1];