[PATCH 5/7] mfreadwrite: Add a trace for async reader mode.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov 
---
 dlls/mfreadwrite/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/mfreadwrite/main.c b/dlls/mfreadwrite/main.c
index 2e1d24c21c..78d96e4f8c 100644
--- a/dlls/mfreadwrite/main.c
+++ b/dlls/mfreadwrite/main.c
@@ -680,8 +680,12 @@ static HRESULT create_source_reader_from_source(IMFMediaSource *source, IMFAttri
     }

if (attributes)
+    {
         IMFAttributes_GetUnknown(attributes, &MF_SOURCE_READER_ASYNC_CALLBACK, &IID_IMFSourceReaderCallback,
                 (void **)&object->async_callback);
+        if (object->async_callback)
+            TRACE("Using async callback %p.\n", object->async_callback);
+    }

hr = IMFSourceReader_QueryInterface(&object->IMFSourceReader_iface, riid, out);