Fixed crash in compression filter when transform argument is null.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/lib/filters/comp_filter.cpp b/src/lib/filters/comp_filter.cpp
index 61ac16f38..5e9ef577f 100644
--- a/src/lib/filters/comp_filter.cpp
+++ b/src/lib/filters/comp_filter.cpp
@@ -25,7 +25,12 @@ Compression_Decompression_Filter::Compression_Decompression_Filter(Transform* tr
    {
    m_transform.reset(dynamic_cast<Compressor_Transform*>(transform));
    if(!m_transform)
-      throw std::invalid_argument("Transform " + transform->name() + " is not a compressor");
+      {
+      if (transform)
+         throw std::invalid_argument("Transform " + transform->name() + " is not a compressor");
+      else
+         throw std::invalid_argument("Transform is null");
+      }
    }
 
 std::string Compression_Decompression_Filter::name() const