static void gst_capsfilter_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static void gst_capsfilter_dispose (GObject * object);
+
static GstCaps *gst_capsfilter_transform_caps (GstBaseTransform * base,
GstPadDirection direction, GstCaps * caps);
static GstFlowReturn gst_capsfilter_transform_ip (GstBaseTransform * base,
filter->filter_caps = gst_caps_new_any ();
}
+static gboolean
+copy_func (GQuark field_id, const GValue * value, GstStructure * dest)
+{
+ gst_structure_id_set_value (dest, field_id, value);
+
+ return TRUE;
+}
+
static void
gst_capsfilter_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
switch (prop_id) {
case PROP_FILTER_CAPS:{
GstCaps *new_caps;
- GstCaps *old_caps;
+ GstCaps *old_caps, *suggest, *nego;
const GstCaps *new_caps_val = gst_value_get_caps (value);
if (new_caps_val == NULL) {
GST_DEBUG_OBJECT (capsfilter, "set new caps %" GST_PTR_FORMAT, new_caps);
+ /* filter the currently negotiated format against the new caps */
+ GST_OBJECT_LOCK (GST_BASE_TRANSFORM_SINK_PAD (object));
+ nego = GST_PAD_CAPS (GST_BASE_TRANSFORM_SINK_PAD (object));
+ if (nego) {
+ GstStructure *s1, *s2;
+
+ /* first check if the name is the same */
+ s1 = gst_caps_get_structure (nego, 0);
+ s2 = gst_caps_get_structure (new_caps, 0);
+
+ GST_DEBUG_OBJECT (capsfilter, "we had negotiated caps %" GST_PTR_FORMAT,
+ nego);
+
+ if (gst_structure_get_name_id (s1) == gst_structure_get_name_id (s2)) {
+ /* same name, copy all fields from the new caps into the previously
+ * negotiated caps */
+ suggest = gst_caps_copy (nego);
+ s1 = gst_caps_get_structure (suggest, 0);
+ gst_structure_foreach (s2, (GstStructureForeachFunc) copy_func, s1);
+ GST_DEBUG_OBJECT (capsfilter, "copied structure fields");
+ } else {
+ GST_DEBUG_OBJECT (capsfilter, "different structure names");
+ /* different names, we can only suggest the complete caps */
+ suggest = gst_caps_copy (new_caps);
+ }
+ } else {
+ GST_DEBUG_OBJECT (capsfilter, "no negotiated caps");
+ /* no previous caps, the getcaps function will be used to find suitable
+ * caps */
+ suggest = NULL;
+ }
+ GST_OBJECT_UNLOCK (GST_BASE_TRANSFORM_SINK_PAD (object));
+
+ if (suggest) {
+ gst_base_transform_suggest (GST_BASE_TRANSFORM (object), suggest, 0);
+ gst_caps_unref (suggest);
+ }
+
/* FIXME: Need to activate these caps on the pads
* http://bugzilla.gnome.org/show_bug.cgi?id=361718
*/