mfreadwrite: Return sample timestamp from ReadSample().

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

dlls/mfreadwrite/main.c

@@ -850,6 +850,15 @@ static HRESULT WINAPI src_reader_ReadSample(IMFSourceReader *iface, DWORD index,
         LeaveCriticalSection(&stream->cs);
 
         TRACE("Got sample %p.\n", *sample);
+
+        if (timestamp)
+        {
+            /* TODO: it's possible timestamp has to be set for some events.
+               For MEEndOfStream it's correct to return 0. */
+            *timestamp = 0;
+            if (*sample)
+                IMFSample_GetSampleTime(*sample, timestamp);
+        }
     }
 
     return S_OK;