Nikolay Sivov : mfreadwrite: Add a trace for async reader mode.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: e92bf051f5f4e6807118715ae1a6395f46f0bca0
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=e92bf051f5f4e6807118715ae1a6395f46f0bca0

Author: Nikolay Sivov <nsivov at codeweavers.com>
Date:   Mon Apr  1 13:24:05 2019 +0300

mfreadwrite: Add a trace for async reader mode.

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard at winehq.org>

---

 dlls/mfreadwrite/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/mfreadwrite/main.c b/dlls/mfreadwrite/main.c
index 2e1d24c..78d96e4 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);