Exemplo n.º 1
0
/**
 * gst_caps_features_to_string:
 * @features: a #GstCapsFeatures
 *
 * Converts @features to a human-readable string representation.
 *
 * For debugging purposes its easier to do something like this:
 * |[
 * GST_LOG ("features is %" GST_PTR_FORMAT, features);
 * ]|
 * This prints the features in human readble form.
 *
 * Free-function: g_free
 *
 * Returns: (transfer full): a pointer to string allocated by g_malloc().
 *     g_free() after usage.
 *
 * Since: 1.2
 */
gchar *
gst_caps_features_to_string (const GstCapsFeatures * features)
{
  GString *s;

  g_return_val_if_fail (features != NULL, NULL);

  s = g_string_sized_new (FEATURES_ESTIMATED_STRING_LEN (features));

  priv_gst_caps_features_append_to_gstring (features, s);

  return g_string_free (s, FALSE);
}
Exemplo n.º 2
0
static gchar *
debug_dump_describe_caps (GstCaps * caps, GstDebugGraphDetails details)
{
  gchar *media = NULL;

  if (details & GST_DEBUG_GRAPH_SHOW_CAPS_DETAILS) {

    if (gst_caps_is_any (caps) || gst_caps_is_empty (caps)) {
      media = gst_caps_to_string (caps);

    } else {
      GString *str = NULL;
      guint i;
      guint slen = 0;

      for (i = 0; i < gst_caps_get_size (caps); i++) {
        slen += 25 +
            STRUCTURE_ESTIMATED_STRING_LEN (gst_caps_get_structure (caps, i));
      }

      str = g_string_sized_new (slen);
      for (i = 0; i < gst_caps_get_size (caps); i++) {
        GstCapsFeatures *features = __gst_caps_get_features_unchecked (caps, i);
        GstStructure *structure = gst_caps_get_structure (caps, i);

        g_string_append (str, gst_structure_get_name (structure));

        if (features && (gst_caps_features_is_any (features)
                || !gst_caps_features_is_equal (features,
                    GST_CAPS_FEATURES_MEMORY_SYSTEM_MEMORY))) {
          g_string_append_c (str, '(');
          priv_gst_caps_features_append_to_gstring (features, str);
          g_string_append_c (str, ')');
        }
        g_string_append (str, "\\l");

        gst_structure_foreach (structure, string_append_field, (gpointer) str);
      }

      media = g_string_free (str, FALSE);
    }

  } else {
    if (GST_CAPS_IS_SIMPLE (caps))
      media =
          g_strdup (gst_structure_get_name (gst_caps_get_structure (caps, 0)));
    else
      media = g_strdup ("*");
  }
  return media;
}