[PATCH 1/4] mfreadwrite: Keep media stream id for event matching.

[Nikolay Sivov]

Signed-off-by: Nikolay Sivov <nsivov at codeweavers.com>
---
 dlls/mfreadwrite/main.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dlls/mfreadwrite/main.c b/dlls/mfreadwrite/main.c
index 78d96e4f8c..e41bdf6e9d 100644
--- a/dlls/mfreadwrite/main.c
+++ b/dlls/mfreadwrite/main.c
@@ -75,6 +75,7 @@ HRESULT WINAPI DllUnregisterServer(void)
 struct media_stream
 {
     IMFMediaType *current;
+    DWORD id;
 };
 
 typedef struct source_reader
@@ -644,6 +645,9 @@ static HRESULT create_source_reader_from_source(IMFMediaSource *source, IMFAttri
         if (FAILED(hr = IMFPresentationDescriptor_GetStreamDescriptorByIndex(object->descriptor, i, &selected, &sd)))
             break;
 
+        if (FAILED(hr = IMFStreamDescriptor_GetStreamIdentifier(sd, &object->streams[i].id)))
+            WARN("Failed to get stream identifier, hr %#x.\n", hr);
+
         hr = IMFStreamDescriptor_GetMediaTypeHandler(sd, &handler);
         IMFStreamDescriptor_Release(sd);
         if (FAILED(hr))
-- 
2.20.1