Initial import of debian/ from gstreamer0.10

Signed-off-by: Nicolas Dechesne <n-dechesne@ti.com>

1 files changed, 446 insertions, 0 deletions

diff --git a/debian/gst-codec-info.c b/debian/gst-codec-info.c
new file mode 100644
index 0000000..f916df2
--- /dev/null
+++ b/debian/gst-codec-info.c
@@ -0,0 +1,446 @@
+/* GStreamer
+ * Copyright (C) 2008 Sebastian Dröge <sebastian.droege@collabora.co.uk>
+ *
+ * gst-codec-info.c: tool to print automatic codec installation info
+ *                   for a given list of plugins
+ *
+ * Partially based on gst-inspect from gstreamer.
+ *
+ * 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., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+
+#include <gst/gst.h>
+#include <string.h>
+
+static const gchar *virtual_packages[] = {
+  "gstreamer0.10-audiosink",
+  "gstreamer0.10-audiosource",
+  "gstreamer0.10-videosink",
+  "gstreamer0.10-videosource",
+  "gstreamer0.10-visualization",
+  NULL
+};
+
+static GList *elements = NULL;
+static GList *uri_sources = NULL;
+static GList *uri_sinks = NULL;
+static GList *provides = NULL;
+static GstCaps *encoders = NULL, *decoders = NULL;
+
+static void
+free_plugin_info (void)
+{
+  g_list_foreach (elements, (GFunc) g_free, NULL);
+  g_list_foreach (uri_sources, (GFunc) g_free, NULL);
+  g_list_foreach (uri_sinks, (GFunc) g_free, NULL);
+
+  g_list_free (elements);
+  g_list_free (uri_sources);
+  g_list_free (uri_sinks);
+
+  g_list_free (provides);
+
+  gst_caps_unref (encoders);
+  gst_caps_unref (decoders);
+}
+
+static void
+print_plugin_info (void)
+{
+  GList *l;
+
+  if (elements) {
+    g_print ("gstreamer:Elements=");
+    for (l = elements; l; l = l->next) {
+      if (l->next)
+        g_print ("%s, ", (gchar *) l->data);
+      else
+        g_print ("%s\n", (gchar *) l->data);
+    }
+  }
+
+  if (provides) {
+    g_print ("gstreamer:Provides=");
+    for (l = provides; l; l = l->next) {
+      if (l->next)
+        g_print ("%s, ", (gchar *) l->data);
+      else
+        g_print ("%s\n", (gchar *) l->data);
+    }
+  }
+
+  if (uri_sources) {
+    g_print ("gstreamer:URISources=");
+    for (l = uri_sources; l; l = l->next) {
+      if (l->next)
+        g_print ("%s, ", (gchar *) l->data);
+      else
+        g_print ("%s\n", (gchar *) l->data);
+    }
+  }
+
+  if (uri_sinks) {
+    g_print ("gstreamer:URISinks=");
+    for (l = uri_sinks; l; l = l->next) {
+      if (l->next)
+        g_print ("%s, ", (gchar *) l->data);
+      else
+        g_print ("%s\n", (gchar *) l->data);
+    }
+  }
+
+  if (!gst_caps_is_empty (encoders)) {
+    gchar *caps = gst_caps_to_string (encoders);
+
+    g_print ("gstreamer:Encoders=%s\n", caps);
+    g_free (caps);
+  }
+
+  if (!gst_caps_is_empty (decoders)) {
+    gchar *caps = gst_caps_to_string (decoders);
+
+    g_print ("gstreamer:Decoders=%s\n", caps);
+    g_free (caps);
+  }
+}
+
+static void
+remove_duplicates (GList * list, gboolean free)
+{
+  GList *l;
+  gchar *previous;
+
+  if (!list || !list->next)
+    return;
+
+  previous = list->data;
+  l = list->next;
+
+  while (l) {
+    if (strcmp (l->data, previous) == 0) {
+      GList *next = l->next;
+
+      if (free)
+        g_free (l->data);
+
+      l = g_list_delete_link (l->prev, l);
+      l = next;
+    } else {
+      previous = l->data;
+      l = l->next;
+    }
+  }
+}
+
+static void
+cleanup_plugin_info (void)
+{
+  if (encoders)
+    gst_caps_do_simplify (encoders);
+
+  if (decoders)
+    gst_caps_do_simplify (decoders);
+
+  elements = g_list_sort (elements, (GCompareFunc) strcmp);
+  uri_sources = g_list_sort (uri_sources, (GCompareFunc) strcmp);
+  uri_sinks = g_list_sort (uri_sinks, (GCompareFunc) strcmp);
+  provides = g_list_sort (provides, (GCompareFunc) strcmp);
+
+  remove_duplicates (elements, TRUE);
+  remove_duplicates (uri_sources, TRUE);
+  remove_duplicates (uri_sinks, TRUE);
+  remove_duplicates (provides, FALSE);
+}
+
+static void
+collect_uri_protocols (GstElementFactory * factory)
+{
+  gchar **protocols, **p;
+
+  protocols = gst_element_factory_get_uri_protocols (factory);
+  if (!protocols)
+    return;
+
+  switch (gst_element_factory_get_uri_type (factory)) {
+    case GST_URI_SINK:
+      for (p = protocols; *p; p++)
+        uri_sinks = g_list_prepend (uri_sinks, g_strdup (*p));
+      break;
+    case GST_URI_SRC:
+      for (p = protocols; *p; p++)
+        uri_sources = g_list_prepend (uri_sources, g_strdup (*p));
+      break;
+  }
+  g_strfreev (protocols);
+}
+
+static void
+remove_min_max_fields (GstStructure * s)
+{
+  gint i, n;
+  gboolean removed_field = FALSE;
+
+
+  do {
+    n = gst_structure_n_fields (s);
+    removed_field = FALSE;
+    for (i = 0; i < n; i++) {
+      const gchar *field_name = gst_structure_nth_field_name (s, i);
+      const GValue *field;
+
+      field = gst_structure_get_value (s, field_name);
+
+      if (GST_VALUE_HOLDS_INT_RANGE (field)) {
+        gint min, max;
+
+        min = gst_value_get_int_range_min (field);
+        max = gst_value_get_int_range_max (field);
+
+        if (min == 0 && max == G_MAXINT) {
+          gst_structure_remove_field (s, field_name);
+          removed_field = TRUE;
+          break;
+        }
+      } else if (GST_VALUE_HOLDS_LIST (field)) {
+        gint n2 = gst_value_list_get_size (field);
+
+        if (n2 == 2) {
+          const GValue *val1 = gst_value_list_get_value (field, 0);
+          const GValue *val2 = gst_value_list_get_value (field, 1);
+
+          if (G_VALUE_TYPE (val1) == G_TYPE_BOOLEAN
+              && G_VALUE_TYPE (val2) == G_TYPE_BOOLEAN
+              && ((g_value_get_boolean (val1) && !g_value_get_boolean (val2))
+                  || (!g_value_get_boolean (val1)
+                      && g_value_get_boolean (val2)))) {
+            gst_structure_remove_field (s, field_name);
+            removed_field = TRUE;
+            break;
+          }
+        }
+      } else if (GST_VALUE_HOLDS_ARRAY (field)) {
+        gint n2 = gst_value_array_get_size (field);
+
+        if (n2 == 2) {
+          const GValue *val1 = gst_value_array_get_value (field, 0);
+          const GValue *val2 = gst_value_array_get_value (field, 1);
+
+          if (G_VALUE_TYPE (val1) == G_TYPE_BOOLEAN
+              && G_VALUE_TYPE (val2) == G_TYPE_BOOLEAN
+              && ((g_value_get_boolean (val1) && !g_value_get_boolean (val2))
+                  || (!g_value_get_boolean (val1)
+                      && g_value_get_boolean (val2)))) {
+            gst_structure_remove_field (s, field_name);
+            removed_field = TRUE;
+            break;
+          }
+        }
+      }
+    }
+  } while (removed_field);
+}
+
+static void
+collect_codecs (GstElementFactory * factory)
+{
+  GstPadDirection direction;
+  gboolean encoder;
+  const gchar *klass;
+  const GList *static_templates, *l;
+  GstCaps *caps = NULL;
+  gint i, n;
+
+  klass = gst_element_factory_get_klass (factory);
+  g_return_if_fail (klass);
+
+  if (strstr (klass, "Demuxer") ||
+      strstr (klass, "Decoder") ||
+      strstr (klass, "Depay") || strstr (klass, "Parser")) {
+
+    /* Ignore decoders with a less than marginal rank as they're
+     * not autoplugged by playbin/decodebin */
+    if (gst_plugin_feature_get_rank (GST_PLUGIN_FEATURE (factory)) <
+        GST_RANK_MARGINAL)
+      return;
+
+    encoder = FALSE;
+    direction = GST_PAD_SINK;
+  } else if (strstr (klass, "Muxer") ||
+      strstr (klass, "Encoder") || strstr (klass, "Pay")) {
+    encoder = TRUE;
+    direction = GST_PAD_SRC;
+  } else if (strcmp (klass, "Sink/Audio") == 0) {
+    provides = g_list_prepend (provides, (gchar *) virtual_packages[0]);
+    return;
+  } else if (strcmp (klass, "Source/Audio") == 0) {
+    provides = g_list_prepend (provides, (gchar *) virtual_packages[1]);
+    return;
+  } else if (strcmp (klass, "Sink/Video") == 0) {
+    provides = g_list_prepend (provides, (gchar *) virtual_packages[2]);
+    return;
+  } else if (strcmp (klass, "Source/Video") == 0) {
+    provides = g_list_prepend (provides, (gchar *) virtual_packages[3]);
+    return;
+  } else if (strcmp (klass, "Visualization") == 0) {
+    provides = g_list_prepend (provides, (gchar *) virtual_packages[4]);
+    return;
+  } else {
+    return;
+  }
+
+  /* decoder/demuxer sink pads should always be static and there should only
+   * be one, the same applies to encoders/muxers and source pads */
+  static_templates = gst_element_factory_get_static_pad_templates (factory);
+  for (l = static_templates; l; l = l->next) {
+    GstStaticPadTemplate *tmpl = l->data;
+
+    if (tmpl->direction == direction) {
+      caps = gst_static_pad_template_get_caps (tmpl);
+      break;
+    }
+  }
+
+  if (caps == NULL) {
+    g_printerr ("W: Couldn't find static pad template for '%s'\n",
+        GST_PLUGIN_FEATURE_NAME (factory));
+    return;
+  }
+
+  caps = gst_caps_make_writable (caps);
+  n = gst_caps_get_size (caps);
+  for (i = 0; i < n; i++) {
+    GstStructure *s = gst_caps_get_structure (caps, i);
+
+    /* make caps easier to interpret, remove common fields that are likely
+     * to be irrelevant for determining the right plugin (ie. mostly fields
+     * where template caps usually have the standard MIN - MAX range as value) */
+    gst_structure_remove_field (s, "codec_data");
+    gst_structure_remove_field (s, "palette_data");
+    gst_structure_remove_field (s, "pixel-aspect-ratio");
+    gst_structure_remove_field (s, "framerate");
+    gst_structure_remove_field (s, "leaf_size");
+    gst_structure_remove_field (s, "packet_size");
+    gst_structure_remove_field (s, "block_align");
+    gst_structure_remove_field (s, "metadata-interval");        /* icy caps */
+    /* decoders/encoders almost always handle the usual width/height/channel/rate
+     * range (and if we don't remove this then the app will have a much harder
+     * time blacklisting formats it has unsuccessfully tried to install before) */
+    gst_structure_remove_field (s, "width");
+    gst_structure_remove_field (s, "depth");
+    gst_structure_remove_field (s, "height");
+    gst_structure_remove_field (s, "channels");
+    gst_structure_remove_field (s, "rate");
+    /* rtp fields */
+    gst_structure_remove_field (s, "config");
+    gst_structure_remove_field (s, "clock-rate");
+    gst_structure_remove_field (s, "clock-base");
+    gst_structure_remove_field (s, "maxps");
+    gst_structure_remove_field (s, "seqnum-base");
+    gst_structure_remove_field (s, "npt-start");
+    gst_structure_remove_field (s, "npt-stop");
+    gst_structure_remove_field (s, "play-speed");
+    gst_structure_remove_field (s, "play-scale");
+    gst_structure_remove_field (s, "dynamic_range");
+
+    remove_min_max_fields (s);
+
+    gst_caps_append_structure ((encoder) ? encoders : decoders,
+        gst_structure_copy (s));
+  }
+
+  gst_caps_unref (caps);
+}
+
+static void
+collect_plugin_info (GstPlugin * plugin)
+{
+  GList *features, *l;
+  const gchar *plugin_name;
+
+  plugin_name = gst_plugin_get_name (plugin);
+
+  features = gst_registry_get_feature_list (gst_registry_get_default (),
+      GST_TYPE_ELEMENT_FACTORY);
+
+  for (l = features; l; l = l->next) {
+    GstPluginFeature *feature = GST_PLUGIN_FEATURE (l->data);
+    GstElementFactory *factory = GST_ELEMENT_FACTORY (feature);
+
+    if (!g_str_equal (plugin_name, feature->plugin_name))
+      continue;
+
+    elements =
+        g_list_prepend (elements,
+        g_strdup (gst_plugin_feature_get_name (feature)));
+    collect_uri_protocols (factory);
+    collect_codecs (factory);
+  }
+
+  g_list_foreach (features, (GFunc) gst_object_unref, NULL);
+  g_list_free (features);
+}
+
+int
+main (int argc, char **argv)
+{
+  guint major, minor, micro, nano;
+  gint i;
+
+  if (!g_thread_supported ())
+    g_thread_init (NULL);
+
+  gst_init (NULL, NULL);
+
+  gst_version (&major, &minor, &micro, &nano);
+
+  if (argc == 1)
+    return 0;
+
+  encoders = gst_caps_new_empty ();
+  decoders = gst_caps_new_empty ();
+
+  for (i = 1; i < argc; i++) {
+    GstPlugin *plugin = NULL;
+    GError *error = NULL;
+
+    if (argv[i] == NULL ||
+        !g_file_test (argv[i], G_FILE_TEST_EXISTS) ||
+        !g_str_has_suffix (argv[i], G_MODULE_SUFFIX)) {
+      g_printerr ("W: '%s' is no valid plugin filename\n", argv[i]);
+      continue;
+    }
+
+    plugin = gst_plugin_load_file (argv[i], &error);
+
+    if (!plugin) {
+      g_printerr ("W: Could not load '%s': %s\n", argv[i], error->message);
+      g_error_free (error);
+      continue;
+    }
+
+    collect_plugin_info (plugin);
+  }
+
+  if (elements)
+    g_print ("gstreamer:Version=%u.%u\n", major, minor);
+
+  cleanup_plugin_info ();
+  print_plugin_info ();
+  free_plugin_info ();
+
+  return 0;
+}