amstream: Call interface methods properly.

dlls/amstream/amstream.c

@@ -87,8 +87,8 @@ static HRESULT WINAPI IAMMultiMediaStreamImpl_QueryInterface(IAMMultiMediaStream
         IsEqualGUID(riid, &IID_IMultiMediaStream) ||
         IsEqualGUID(riid, &IID_IAMMultiMediaStream))
     {
-        IUnknown_AddRef(iface);
-        *ppvObject = This;
+        IAMMultiMediaStream_AddRef(iface);
+        *ppvObject = iface;
         return S_OK;
     }
 
@@ -306,7 +306,7 @@ static HRESULT WINAPI IAMMultiMediaStreamImpl_GetFilterGraph(IAMMultiMediaStream
         return E_POINTER;
 
     if (This->pFilterGraph)
-        return IFilterGraph_QueryInterface(This->pFilterGraph, &IID_IGraphBuilder, (void**)ppGraphBuilder);
+        return IGraphBuilder_QueryInterface(This->pFilterGraph, &IID_IGraphBuilder, (void**)ppGraphBuilder);
     else
         *ppGraphBuilder = NULL;
 

dlls/amstream/audiodata.c

@@ -48,7 +48,7 @@ static HRESULT WINAPI IAudioDataImpl_QueryInterface(IAudioData *iface, REFIID ri
         IsEqualGUID(riid, &IID_IMemoryData) ||
         IsEqualGUID(riid, &IID_IAudioData))
     {
-        IUnknown_AddRef(iface);
+        IAudioData_AddRef(iface);
         *ret_iface = iface;
         return S_OK;
     }

dlls/amstream/mediastream.c

@@ -60,8 +60,8 @@ static HRESULT WINAPI IDirectDrawMediaStreamImpl_QueryInterface(IDirectDrawMedia
         IsEqualGUID(riid, &IID_IMediaStream) ||
         IsEqualGUID(riid, &IID_IDirectDrawMediaStream))
     {
-        IUnknown_AddRef(iface);
-        *ppv = This;
+        IDirectDrawMediaStream_AddRef(iface);
+        *ppv = iface;
         return S_OK;
     }
 

dlls/amstream/tests/amstream.c

@@ -155,7 +155,7 @@ static void test_renderfile(void)
 
 error:
     if (pddsample)
-        IDirectDrawMediaSample_Release(pddsample);
+        IDirectDrawStreamSample_Release(pddsample);
     if (pddstream)
         IDirectDrawMediaStream_Release(pddstream);
     if (pvidstream)
@@ -260,7 +260,7 @@ static void test_media_streams(void)
         }
 
         if (ddraw_sample)
-            IDirectDrawMediaSample_Release(ddraw_sample);
+            IDirectDrawStreamSample_Release(ddraw_sample);
         if (ddraw_stream)
             IDirectDrawMediaStream_Release(ddraw_stream);
     }