amstream: Increase IAudioData refcount in IAudioMediaStream::CreateSample().

dlls/amstream/audiostream.c

@@ -202,6 +202,7 @@ static ULONG WINAPI IAudioStreamSampleImpl_Release(IAudioStreamSample *iface)
     if (!ref)
     {
         IAMMediaStream_Release(&This->parent->IAMMediaStream_iface);
+        IAudioData_Release(This->audio_data);
         CloseHandle(This->update_event);
         HeapFree(GetProcessHeap(), 0, This);
     }
@@ -378,6 +379,7 @@ static HRESULT audiostreamsample_create(struct audio_stream *parent, IAudioData
     object->parent = parent;
     IAMMediaStream_AddRef(&parent->IAMMediaStream_iface);
     object->audio_data = audio_data;
+    IAudioData_AddRef(audio_data);
     object->update_event = CreateEventW(NULL, FALSE, FALSE, NULL);
 
     *audio_stream_sample = &object->IAudioStreamSample_iface;

dlls/amstream/tests/amstream.c

@@ -1507,9 +1507,11 @@ static void test_media_streams(void)
             ok(hr == E_POINTER, "IAudioMediaStream_CreateSample returned: %x\n", hr);
 
             EXPECT_REF(audio_stream, 3);
+            EXPECT_REF(audio_data, 1);
             hr = IAudioMediaStream_CreateSample(audio_media_stream, audio_data, 0, &audio_sample);
             ok(hr == S_OK, "IAudioMediaStream_CreateSample returned: %x\n", hr);
             EXPECT_REF(audio_stream, 4);
+            EXPECT_REF(audio_data, 2);
 
             hr = IAudioMediaStream_GetMultiMediaStream(audio_media_stream, NULL);
             ok(hr == E_POINTER, "Expected E_POINTER, got %x\n", hr);