tools: Add tool to list all components and their roles

Makefile.am

@@ -1,4 +1,4 @@
-SUBDIRS = common omx config
+SUBDIRS = common omx tools config
 
 ACLOCAL_AMFLAGS = -I m4
 

configure.ac

@@ -281,6 +281,7 @@ Makefile
 omx/Makefile
 common/Makefile
 common/m4/Makefile
+tools/Makefile
 config/Makefile
 )
 

tools/Makefile.am

@@ -0,0 +1,6 @@
+noinst_PROGRAMS = listcomponents
+
+listcomponents_SOURCES = listcomponents.c
+listcomponents_LDADD = $(GLIB_LIBS)
+listcomponents_CFLAGS = $(GLIB_CFLAGS) -I$(top_srcdir)/omx/openmax $(GST_OPTION_CFLAGS)
+

tools/listcomponents.c

@@ -0,0 +1,169 @@
+/*
+ * Copyright (C) 2012 Collabora Ltd.
+ *   Author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation
+ * version 2.1 of the License.
+ *
+ * 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ *
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <glib.h>
+#include <gmodule.h>
+
+#ifdef GST_OMX_STRUCT_PACKING
+# if GST_OMX_STRUCT_PACKING == 1
+#  pragma pack(1)
+# elif GST_OMX_STRUCT_PACKING == 2
+#  pragma pack(2)
+# elif GST_OMX_STRUCT_PACKING == 4
+#  pragma pack(4)
+# elif GST_OMX_STRUCT_PACKING == 8
+#  pragma pack(8)
+# else
+#  error "Unsupported struct packing value"
+# endif
+#endif
+
+#include <OMX_Core.h>
+#include <OMX_Component.h>
+
+#ifdef GST_OMX_STRUCT_PACKING
+#pragma pack()
+#endif
+
+gint
+main (gint argc, gchar ** argv)
+{
+  gchar *filename;
+  GModule *core_module;
+  OMX_ERRORTYPE err;
+  OMX_ERRORTYPE (*omx_init) (void);
+  OMX_ERRORTYPE (*omx_component_name_enum) (OMX_STRING cComponentName,
+      OMX_U32 nNameLength, OMX_U32 nIndex);
+  OMX_ERRORTYPE (*omx_get_roles_of_component) (OMX_STRING compName,
+      OMX_U32 * pNumRoles, OMX_U8 ** roles);
+  guint32 i;
+
+  if (argc != 2) {
+    g_printerr ("Usage: %s /path/to/libopenmaxil.so\n", argv[0]);
+    return -1;
+  }
+
+  filename = argv[1];
+
+  if (!g_path_is_absolute (filename)) {
+    g_printerr ("'%s' is not an absolute filename\n", filename);
+    return -1;
+  }
+
+  /* Hack for the Broadcom OpenMAX IL implementation */
+  if (g_str_has_prefix (filename, "vc/lib/libopenmaxil.so")) {
+    gchar *bcm_host_filename;
+    gchar *bcm_host_path;
+    GModule *bcm_host_module;
+    void (*bcm_host_init) (void);
+
+    bcm_host_path = g_path_get_dirname (filename);
+    bcm_host_filename =
+        g_build_filename (bcm_host_path, "libbcm_host.so", NULL);
+
+    bcm_host_module = g_module_open (bcm_host_filename, G_MODULE_BIND_LAZY);
+
+    g_free (bcm_host_filename);
+    g_free (bcm_host_path);
+
+    if (!bcm_host_module) {
+      g_printerr ("Failed to load 'libbcm_host.so'\n");
+      return -1;
+    }
+
+    if (!g_module_symbol (bcm_host_module, "bcm_host_init",
+            (gpointer *) & bcm_host_init)) {
+      g_printerr ("Failed to find 'bcm_host_init' in 'libbcm_host.so'\n");
+      return -1;
+    }
+
+    bcm_host_init ();
+  }
+
+  core_module = g_module_open (filename, G_MODULE_BIND_LAZY);
+  if (!core_module) {
+    g_printerr ("Failed to load '%s'\n", filename);
+    return -1;
+  }
+
+  if (!g_module_symbol (core_module, "OMX_Init", (gpointer *) & omx_init)) {
+    g_printerr ("Failed to find '%s' in '%s'\n", "OMX_Init", filename);
+    return -1;
+  }
+
+  if (!g_module_symbol (core_module, "OMX_ComponentNameEnum",
+          (gpointer *) & omx_component_name_enum)) {
+    g_printerr ("Failed to find '%s' in '%s'\n", "OMX_ComponentNameEnum",
+        filename);
+    return -1;
+  }
+
+  if (!g_module_symbol (core_module, "OMX_GetRolesOfComponent",
+          (gpointer *) & omx_get_roles_of_component)) {
+    g_printerr ("Failed to find '%s' in '%s'\n", "OMX_GetRolesOfComponent",
+        filename);
+    return -1;
+  }
+
+
+  if ((err = omx_init ()) != OMX_ErrorNone) {
+    g_printerr ("Failed to initialize core: %d\n", err);
+    return -1;
+  }
+
+  i = 0;
+  while (err == OMX_ErrorNone) {
+    gchar component_name[1024];
+
+    err = omx_component_name_enum (component_name, sizeof (component_name), i);
+    if (err == OMX_ErrorNone || err == OMX_ErrorNoMore) {
+      guint32 nroles;
+
+      g_print ("Component %d: %s\n", i, component_name);
+
+      if (omx_get_roles_of_component (component_name, (OMX_U32 *) & nroles,
+              NULL) == OMX_ErrorNone && nroles > 0) {
+        gchar **roles = g_new (gchar *, nroles);
+        gint j;
+
+        roles[0] = g_new0 (gchar, 129 * nroles);
+        for (j = 1; j < nroles; j++) {
+          roles[j] = roles[j - 1] + 129;
+        }
+
+        if (omx_get_roles_of_component (component_name, (OMX_U32 *) & nroles,
+                (OMX_U8 **) roles) == OMX_ErrorNone) {
+          for (j = 0; j < nroles; j++) {
+            g_print ("  Role %d: %s\n", j, roles[j]);
+          }
+        }
+        g_free (roles[0]);
+        g_free (roles);
+      }
+    }
+    i++;
+  }
+
+  return 0;
+}