[PATCH 08/10] windowscodecs/metadata: Handle empty items in queries.

[Nikolay Sivov]

From: Nikolay Sivov

Signed-off-by: Nikolay Sivov 
---
 dlls/windowscodecs/metadataquery.c  |  8 ++++++++
 dlls/windowscodecs/tests/metadata.c | 16 ++++------------
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/dlls/windowscodecs/metadataquery.c b/dlls/windowscodecs/metadataquery.c
index d2876684b6b..5fc63c09f94 100644
--- a/dlls/windowscodecs/metadataquery.c
+++ b/dlls/windowscodecs/metadataquery.c
@@ -322,6 +322,14 @@ static void parse_query_data_item(struct query_parser *parser, PROPVARIANT *item

if (parser_skip_char(parser, '{')) return;

+    /* Empty "{}" item represents VT_EMPTY. */
+    if (*parser->ptr == '}')
+    {
+        item->vt = VT_EMPTY;
+        parser_skip_char(parser, '}');
+        return;
+    }
+
     /* Type */
     span.str = parser->ptr;
     span.len = 0;
diff --git a/dlls/windowscodecs/tests/metadata.c b/dlls/windowscodecs/tests/metadata.c
index 1bd00fe7563..3b8f583431f 100644
--- a/dlls/windowscodecs/tests/metadata.c
+++ b/dlls/windowscodecs/tests/metadata.c
@@ -781,23 +781,15 @@ static void test_metadata_unknown(void)

PropVariantInit(&value);
     hr = IWICMetadataQueryReader_GetMetadataByName(query_reader2, L"/{}", &value);
-    todo_wine
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
-    if (hr == S_OK)
-    {
-        compare_blob(&value, metadata_unknown, sizeof(metadata_unknown));
-        PropVariantClear(&value);
-    }
+    compare_blob(&value, metadata_unknown, sizeof(metadata_unknown));
+    PropVariantClear(&value);

PropVariantInit(&value);
     hr = IWICMetadataQueryReader_GetMetadataByName(query_reader, L"/unknown/{}", &value);
-    todo_wine
     ok(hr == S_OK, "Unexpected hr %#lx.\n", hr);
-    if (hr == S_OK)
-    {
-        compare_blob(&value, metadata_unknown, sizeof(metadata_unknown));
-        PropVariantClear(&value);
-    }
+    compare_blob(&value, metadata_unknown, sizeof(metadata_unknown));
+    PropVariantClear(&value);

IWICMetadataQueryReader_Release(query_reader2);
     IWICMetadataQueryReader_Release(query_reader);