gst/: Deprecate _type_is_fixed, use _value_is_fixed instead, since the fixedness depends on the content.

Original commit message from CVS:
* gst/gstcaps.c: (gst_caps_is_fixed_foreach):
* gst/gstpad.c: (_gst_pad_default_fixate_value),
(_gst_pad_default_fixate_foreach):
* gst/gstvalue.c: (gst_type_is_fixed), (gst_value_is_fixed):
* gst/gstvalue.h:
Deprecate _type_is_fixed, use _value_is_fixed instead, since
in some cases (arrays), the fixedness depends on the content.
* gst/gstqueue.c: (gst_queue_handle_src_query):
Check for availability before doing something.

ChangeLog

@@ -1,3 +1,15 @@
+2004-11-29  Ronald S. Bultje  <rbultje@ronald.bitfreak.net>
+
+	* gst/gstcaps.c: (gst_caps_is_fixed_foreach):
+	* gst/gstpad.c: (_gst_pad_default_fixate_value),
+	(_gst_pad_default_fixate_foreach):
+	* gst/gstvalue.c: (gst_type_is_fixed), (gst_value_is_fixed):
+	* gst/gstvalue.h:
+	  Deprecate _type_is_fixed, use _value_is_fixed instead, since
+	  in some cases (arrays), the fixedness depends on the content.
+	* gst/gstqueue.c: (gst_queue_handle_src_query):
+	  Check for availability before doing something.
+
 2004-11-29  Wim Taymans  <wim@fluendo.com>
 
 	* testsuite/threads/Makefile.am:

gst/gstcaps.c

@@ -553,9 +553,7 @@ gst_caps_is_chained (const GstCaps * caps)
 static gboolean
 gst_caps_is_fixed_foreach (GQuark field_id, GValue * value, gpointer unused)
 {
-  GType type = G_VALUE_TYPE (value);
-
-  return gst_type_is_fixed (type);
+  return gst_value_is_fixed (value);
 }
 
 /**

gst/gstpad.c

@@ -2073,32 +2073,57 @@ gst_pad_get_ghost_pad_list (GstPad * pad)
 }
 
 static gboolean
-_gst_pad_default_fixate_foreach (GQuark field_id, GValue * value, gpointer s)
+_gst_pad_default_fixate_value (const GValue * value, GValue * dest)
 {
-  GstStructure *structure = (GstStructure *) s;
   GType type = G_VALUE_TYPE (value);
 
-  if (gst_type_is_fixed (type))
+  if (gst_value_is_fixed (value))
     return TRUE;
 
   if (type == GST_TYPE_INT_RANGE) {
-    gst_structure_set (structure, g_quark_to_string (field_id),
-        G_TYPE_INT, gst_value_get_int_range_min (value), NULL);
-    return FALSE;
-  }
-  if (type == GST_TYPE_DOUBLE_RANGE) {
-    gst_structure_set (structure, g_quark_to_string (field_id),
-        G_TYPE_DOUBLE, gst_value_get_double_range_min (value), NULL);
-    return FALSE;
-  }
-  if (type == GST_TYPE_LIST) {
-    gst_structure_set_value (structure, g_quark_to_string (field_id),
-        gst_value_list_get_value (value, 0));
-    return FALSE;
+    g_value_init (dest, G_TYPE_INT);
+    g_value_set_int (dest, gst_value_get_int_range_min (value));
+  } else if (type == GST_TYPE_DOUBLE_RANGE) {
+    g_value_init (dest, G_TYPE_DOUBLE);
+    g_value_set_double (dest, gst_value_get_double_range_min (value));
+  } else if (type == GST_TYPE_LIST) {
+    gst_value_init_and_copy (dest, gst_value_list_get_value (value, 0));
+  } else if (type == GST_TYPE_FIXED_LIST) {
+    gint size, n;
+    GValue dest_kid = { 0 };
+    const GValue *kid;
+
+    /* check recursively */
+    g_value_init (dest, GST_TYPE_FIXED_LIST);
+    size = gst_value_list_get_size (value);
+    for (n = 0; n < size; n++) {
+      kid = gst_value_list_get_value (value, n);
+      if (_gst_pad_default_fixate_value (kid, &dest_kid)) {
+        gst_value_list_append_value (dest, kid);
+      } else {
+        gst_value_list_append_value (dest, &dest_kid);
+        g_value_unset (&dest_kid);
+      }
+    }
+  } else {
+    g_critical ("Don't know how to fixate value type %s", g_type_name (type));
   }
 
-  g_critical ("don't know how to fixate type %s", g_type_name (type));
-  return TRUE;
+  return FALSE;
+}
+
+static gboolean
+_gst_pad_default_fixate_foreach (GQuark field_id, GValue * value, gpointer s)
+{
+  GstStructure *structure = (GstStructure *) s;
+  GValue dest = { 0 };
+
+  if (_gst_pad_default_fixate_value (value, &dest))
+    return TRUE;
+  gst_structure_id_set_value (structure, field_id, &dest);
+  g_value_unset (&dest);
+
+  return FALSE;
 }
 
 static GstCaps *

gst/gstqueue.c

@@ -953,10 +953,10 @@ gst_queue_handle_src_query (GstPad * pad,
     GstQueryType type, GstFormat * fmt, gint64 * value)
 {
   GstQueue *queue = GST_QUEUE (gst_pad_get_parent (pad));
-  gboolean res;
 
-  res = gst_pad_query (GST_PAD_PEER (queue->sinkpad), type, fmt, value);
-  if (!res)
+  if (!GST_PAD_PEER (queue->sinkpad))
+    return FALSE;
+  if (!gst_pad_query (GST_PAD_PEER (queue->sinkpad), type, fmt, value))
     return FALSE;
 
   if (type == GST_QUERY_POSITION) {

gst/gstvalue.c

@@ -2360,8 +2360,8 @@ gst_type_is_fixed (GType type)
       type == GST_TYPE_LIST) {
     return FALSE;
   }
-  if (G_TYPE_IS_FUNDAMENTAL (type) &&
-      type < G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
+  if (G_TYPE_FUNDAMENTAL (type) <=
+      G_TYPE_MAKE_FUNDAMENTAL (G_TYPE_RESERVED_GLIB_LAST)) {
     return TRUE;
   }
   if (type == GST_TYPE_BUFFER || type == GST_TYPE_FOURCC
@@ -2372,6 +2372,41 @@ gst_type_is_fixed (GType type)
   return FALSE;
 }
 
+/**
+ * gst_value_is_fixed:
+ * @value: the #GValue to check
+ *
+ * Tests if the given GValue, if available in a GstStructure (or any other
+ * container) contains a "fixed" (which means: one value) or an "unfixed"
+ * (which means: multiple possible values, such as data lists or data
+ * ranges) value.
+ *
+ * Returns: true if the value is "fixed".
+ */
+
+gboolean
+gst_value_is_fixed (const GValue * value)
+{
+  GType type = G_VALUE_TYPE (value);
+
+  if (type == GST_TYPE_FIXED_LIST) {
+    gboolean fixed = TRUE;
+    gint size, n;
+    const GValue *kid;
+
+    /* check recursively */
+    size = gst_value_list_get_size (value);
+    for (n = 0; n < size; n++) {
+      kid = gst_value_list_get_value (value, n);
+      fixed &= gst_value_is_fixed (kid);
+    }
+
+    return fixed;
+  }
+
+  return gst_type_is_fixed (type);
+}
+
 /************
  * fraction *
  ************/

gst/gstvalue.h

@@ -181,6 +181,7 @@ void		gst_value_register_subtract_func (GType		minuend_type,
 
 /* fixation */
 gboolean	gst_type_is_fixed		(GType type);
+gboolean	gst_value_is_fixed		(const GValue   *value);
 
 /* private */
 void		_gst_value_initialize		(void);

plugins/elements/gstqueue.c

@@ -953,10 +953,10 @@ gst_queue_handle_src_query (GstPad * pad,
     GstQueryType type, GstFormat * fmt, gint64 * value)
 {
   GstQueue *queue = GST_QUEUE (gst_pad_get_parent (pad));
-  gboolean res;
 
-  res = gst_pad_query (GST_PAD_PEER (queue->sinkpad), type, fmt, value);
-  if (!res)
+  if (!GST_PAD_PEER (queue->sinkpad))
+    return FALSE;
+  if (!gst_pad_query (GST_PAD_PEER (queue->sinkpad), type, fmt, value))
     return FALSE;
 
   if (type == GST_QUERY_POSITION) {