diff --git a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.cpp b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.cpp
index f82a1f8b91..6af65b476f 100644
--- a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.cpp
+++ b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.cpp
@@ -1267,26 +1267,3 @@ gst_d3d12_pool_allocator_acquire_memory (GstD3D12PoolAllocator * allocator,
 
   return ret;
 }
-
-gboolean
-gst_d3d12_pool_allocator_get_pool_size (GstD3D12PoolAllocator * allocator,
-    guint * max_size, guint * outstanding_size)
-{
-  GstD3D12PoolAllocatorPrivate *priv;
-
-  g_return_val_if_fail (GST_IS_D3D12_POOL_ALLOCATOR (allocator), FALSE);
-
-  priv = allocator->priv;
-
-  if (max_size) {
-    if (priv->desc.DepthOrArraySize > 1)
-      *max_size = (guint) priv->desc.DepthOrArraySize;
-    else
-      *max_size = 0;
-  }
-
-  if (outstanding_size)
-    *outstanding_size = priv->outstanding;
-
-  return TRUE;
-}
diff --git a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.h b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.h
index 50c263f7f2..1de368410e 100644
--- a/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.h
+++ b/subprojects/gst-plugins-bad/sys/d3d12/gstd3d12memory.h
@@ -222,8 +222,5 @@ GstD3D12PoolAllocator * gst_d3d12_pool_allocator_new (GstD3D12Device * device,
 GstFlowReturn           gst_d3d12_pool_allocator_acquire_memory (GstD3D12PoolAllocator * allocator,
                                                                  GstMemory ** memory);
 
-gboolean                gst_d3d12_pool_allocator_get_pool_size  (GstD3D12PoolAllocator * allocator,
-                                                                 guint * max_size, guint * outstanding_size);
-
 G_END_DECLS