1 files changed, 2 insertions, 2 deletions
diff --git a/src/plugins/mediaservices/directshow/mediaplayer/directshowiosource.cpp b/src/plugins/mediaservices/directshow/mediaplayer/directshowiosource.cpp
index 1dca465..15bfea5 100644
--- a/src/plugins/mediaservices/directshow/mediaplayer/directshowiosource.cpp
+++ b/src/plugins/mediaservices/directshow/mediaplayer/directshowiosource.cpp
@@ -414,8 +414,8 @@ HRESULT DirectShowIOSource::tryConnect(IPin *pin, const AM_MEDIA_TYPE *type)
     } else if (!m_allocator) {
         hr = VFW_E_NO_TRANSPORT;
 
-        if (IMemInputPin *memPin = com_cast<IMemInputPin>(pin)) {
-            if ((m_allocator = com_new<IMemAllocator>(CLSID_MemoryAllocator))) {
+        if (IMemInputPin *memPin = com_cast<IMemInputPin>(pin, IID_IMemInputPin)) {
+            if ((m_allocator = com_new<IMemAllocator>(CLSID_MemoryAllocator, IID_IMemAllocator))) {
                 ALLOCATOR_PROPERTIES properties;
                 if (memPin->GetAllocatorRequirements(&properties) == S_OK
                         || m_allocator->GetProperties(&properties) == S_OK) {