gst/mxf/mxfmetadata.*: If resolving a metadata object failed the first time return

Original commit message from CVS:
* gst/mxf/mxfmetadata.c: (mxf_metadata_base_resolve):
* gst/mxf/mxfmetadata.h:
If resolving a metadata object failed the first time return
FALSE for a second mxf_metadata_base_resolve() call instead
of TRUE.

3 files changed, 25 insertions, 4 deletions

diff --git a/ChangeLog b/ChangeLog
index 3537e98d..ecb07844 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,13 @@
 2008-12-22  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
 
+	* gst/mxf/mxfmetadata.c: (mxf_metadata_base_resolve):
+	* gst/mxf/mxfmetadata.h:
+	If resolving a metadata object failed the first time return
+	FALSE for a second mxf_metadata_base_resolve() call instead
+	of TRUE.
+
+2008-12-22  Sebastian Dröge  <sebastian.droege@collabora.co.uk>
+
 	* gst/mxf/mxf.c:
 	* gst/mxf/mxfaes-bwf.h:
 	* gst/mxf/mxfd10.c:
diff --git a/gst/mxf/mxfmetadata.c b/gst/mxf/mxfmetadata.c
index 88280d84..b360eaf5 100644
--- a/gst/mxf/mxfmetadata.c
+++ b/gst/mxf/mxfmetadata.c
@@ -107,21 +107,28 @@ gboolean
 mxf_metadata_base_resolve (MXFMetadataBase * self, MXFMetadataBase ** metadata)
 {
   MXFMetadataBaseClass *klass;
+  gboolean ret = TRUE;
 
   g_return_val_if_fail (MXF_IS_METADATA_BASE (self), FALSE);
   g_return_val_if_fail (metadata != NULL, FALSE);
 
-  if (self->resolved)
+  if (self->resolved == MXF_METADATA_BASE_RESOLVE_STATE_SUCCESS)
     return TRUE;
+  else if (self->resolved == MXF_METADATA_BASE_RESOLVE_STATE_FAILURE)
+    return FALSE;
 
   self->resolved = TRUE;
 
   klass = MXF_METADATA_BASE_GET_CLASS (self);
 
   if (klass->resolve)
-    return klass->resolve (self, metadata);
+    ret = klass->resolve (self, metadata);
 
-  return TRUE;
+  self->resolved =
+      (ret) ? MXF_METADATA_BASE_RESOLVE_STATE_SUCCESS :
+      MXF_METADATA_BASE_RESOLVE_STATE_FAILURE;
+
+  return ret;
 }
 
 G_DEFINE_TYPE (MXFMetadata, mxf_metadata, MXF_TYPE_METADATA_BASE);
diff --git a/gst/mxf/mxfmetadata.h b/gst/mxf/mxfmetadata.h
index 34512572..f0797572 100644
--- a/gst/mxf/mxfmetadata.h
+++ b/gst/mxf/mxfmetadata.h
@@ -333,13 +333,19 @@ typedef struct _MXFMetadataTextLocator MXFMetadataTextLocator;
 typedef MXFMetadataBaseClass MXFMetadataTextLocatorClass;
 GType mxf_metadata_text_locator_get_type (void);
 
+typedef enum {
+  MXF_METADATA_BASE_RESOLVE_STATE_NONE = 0,
+  MXF_METADATA_BASE_RESOLVE_STATE_SUCCESS,
+  MXF_METADATA_BASE_RESOLVE_STATE_FAILURE
+} MXFMetadataBaseResolveState;
+
 struct _MXFMetadataBase {
   GstMiniObject parent;
 
   MXFUL instance_uid;
   MXFUL generation_uid;
 
-  gboolean resolved;
+  MXFMetadataBaseResolveState resolved;
 
   GHashTable *other_tags;
 };