Merge branch 'master' into 0.11

docs/manual/advanced-dparams.xml

@@ -59,6 +59,13 @@
   csource = gst_interpolation_control_source_new ();
   gst_interpolation_control_source_set_interpolation_mode(csource, GST_INTERPOLATE_LINEAR);
     </programlisting>
+    <para>
+      Now we need to assign the control-source to the gobject property. One 
+      control source can only be assigned to one property.
+    </para>
+    <programlisting>
+      gst_controller_set_control_source (controller, "prop1", csource);
+    </programlisting>
     <para>
       This control-source takes new property values from a list of time-stamped
       parameter changes. The source can e.g. fill gaps by smoothing parameter
@@ -76,13 +83,6 @@
   gst_interpolation_control_source_set (csource, 0 * GST_SECOND, value1);
   gst_interpolation_control_source_set (csource, 1 * GST_SECOND, value2);
     </programlisting>
-    <para>
-      Finally we need to assign the control-source to the gobject property. One 
-      control source can only be assigned to one property.
-    </para>
-    <programlisting>
-      gst_controller_set_control_source (controller, "prop1", csource);
-    </programlisting>
     <para>
       Now everything is ready to play. One final note - the controller subsystem
       has a builtin live-mode. Even though a property has a control-source

gst/gstvalue.c

@@ -3321,6 +3321,59 @@ gst_value_can_compare (const GValue * value1, const GValue * value2)
   return gst_value_get_compare_func (value1) != NULL;
 }
 
+static gboolean
+gst_value_list_equals_range (const GValue * list, const GValue * value)
+{
+  const GValue *first;
+  guint list_size, n;
+
+  g_return_val_if_fail (G_IS_VALUE (list), FALSE);
+  g_return_val_if_fail (G_IS_VALUE (value), FALSE);
+  g_return_val_if_fail (GST_VALUE_HOLDS_LIST (list), FALSE);
+
+  /* TODO: compare against an empty list ? No type though... */
+  list_size = VALUE_LIST_SIZE (list);
+  if (list_size == 0)
+    return FALSE;
+
+  /* compare the basic types - they have to match */
+  first = VALUE_LIST_GET_VALUE (list, 0);
+#define CHECK_TYPES(type,prefix) \
+  (prefix##_VALUE_HOLDS_##type(first) && GST_VALUE_HOLDS_##type##_RANGE (value))
+  if (CHECK_TYPES (INT, G)) {
+    const gint rmin = gst_value_get_int_range_min (value);
+    const gint rmax = gst_value_get_int_range_max (value);
+    /* note: this will overflow for min 0 and max INT_MAX, but this
+       would only be equal to a list of INT_MAX elements, which seems
+       very unlikely */
+    if (list_size != rmax - rmin + 1)
+      return FALSE;
+    for (n = 0; n < list_size; ++n) {
+      gint v = g_value_get_int (VALUE_LIST_GET_VALUE (list, n));
+      if (v < rmin || v > rmax) {
+        return FALSE;
+      }
+    }
+    return TRUE;
+  } else if (CHECK_TYPES (INT64, G)) {
+    const gint64 rmin = gst_value_get_int64_range_min (value);
+    const gint64 rmax = gst_value_get_int64_range_max (value);
+    GST_DEBUG ("List/range of int64s");
+    if (list_size != rmax - rmin + 1)
+      return FALSE;
+    for (n = 0; n < list_size; ++n) {
+      gint64 v = g_value_get_int64 (VALUE_LIST_GET_VALUE (list, n));
+      if (v < rmin || v > rmax)
+        return FALSE;
+    }
+    return TRUE;
+  }
+#undef CHECK_TYPES
+
+  /* other combinations don't make sense for equality */
+  return FALSE;
+}
+
 /**
  * gst_value_compare:
  * @value1: a value to compare
@@ -3343,21 +3396,28 @@ gst_value_compare (const GValue * value1, const GValue * value2)
   g_return_val_if_fail (G_IS_VALUE (value1), GST_VALUE_LESS_THAN);
   g_return_val_if_fail (G_IS_VALUE (value2), GST_VALUE_GREATER_THAN);
 
-  /* Special case: lists and scalar values 
-   * "{ 1 }" and "1" are equal */
+  /* Special cases: lists and scalar values ("{ 1 }" and "1" are equal),
+     as well as lists and ranges ("{ 1, 2 }" and "[ 1, 2 ]" are equal) */
   ltype = gst_value_list_get_type ();
-  if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)
-      && gst_value_list_get_size (value1) == 1) {
-    const GValue *elt;
-
-    elt = gst_value_list_get_value (value1, 0);
-    return gst_value_compare (elt, value2);
-  } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)
-      && gst_value_list_get_size (value2) == 1) {
-    const GValue *elt;
-
-    elt = gst_value_list_get_value (value2, 0);
-    return gst_value_compare (elt, value1);
+  if (G_VALUE_HOLDS (value1, ltype) && !G_VALUE_HOLDS (value2, ltype)) {
+
+    if (gst_value_list_equals_range (value1, value2)) {
+      return GST_VALUE_EQUAL;
+    } else if (gst_value_list_get_size (value1) == 1) {
+      const GValue *elt;
+
+      elt = gst_value_list_get_value (value1, 0);
+      return gst_value_compare (elt, value2);
+    }
+  } else if (G_VALUE_HOLDS (value2, ltype) && !G_VALUE_HOLDS (value1, ltype)) {
+    if (gst_value_list_equals_range (value2, value1)) {
+      return GST_VALUE_EQUAL;
+    } else if (gst_value_list_get_size (value2) == 1) {
+      const GValue *elt;
+
+      elt = gst_value_list_get_value (value2, 0);
+      return gst_value_compare (elt, value1);
+    }
   }
 
   if (G_VALUE_TYPE (value1) != G_VALUE_TYPE (value2))

tests/check/gst/gststructure.c

@@ -403,6 +403,24 @@ GST_START_TEST (test_fixate_frac_list)
 
 GST_END_TEST;
 
+GST_START_TEST (test_is_subset)
+{
+  GstStructure *s1, *s2;
+
+  s1 = gst_structure_from_string ("test/test, channels=(int){ 1, 2 }", NULL);
+  fail_if (s1 == NULL);
+  s2 = gst_structure_from_string ("test/test, channels=(int)[ 1, 2 ]", NULL);
+  fail_if (s2 == NULL);
+
+  fail_unless (gst_structure_is_subset (s1, s2));
+
+  gst_structure_free (s1);
+  gst_structure_free (s2);
+}
+
+GST_END_TEST;
+
+
 GST_START_TEST (test_structure_nested)
 {
   GstStructure *sp, *sc1, *sc2;
@@ -604,6 +622,7 @@ gst_structure_suite (void)
   tcase_add_test (tc_chain, test_structure_new);
   tcase_add_test (tc_chain, test_fixate);
   tcase_add_test (tc_chain, test_fixate_frac_list);
+  tcase_add_test (tc_chain, test_is_subset);
   tcase_add_test (tc_chain, test_structure_nested);
   tcase_add_test (tc_chain, test_structure_nested_from_and_to_string);
   tcase_add_test (tc_chain, test_vararg_getters);