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-rw-r--r--src/AS_DCP_TimedText.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/AS_DCP_TimedText.cpp b/src/AS_DCP_TimedText.cpp
index 158679d..73341a5 100644
--- a/src/AS_DCP_TimedText.cpp
+++ b/src/AS_DCP_TimedText.cpp
@@ -127,7 +127,8 @@ ASDCP::TimedText::MXFReader::h__Reader::MD_to_TimedText_TDesc(TimedText::TimedTe
MXF::TimedTextDescriptor* TDescObj = (MXF::TimedTextDescriptor*)m_EssenceDescriptor;
TDesc.EditRate = TDescObj->SampleRate;
- TDesc.ContainerDuration = TDescObj->ContainerDuration;
+ assert(TDescObj->ContainerDuration <= 0xFFFFFFFFL);
+ TDesc.ContainerDuration = (ui32_t) TDescObj->ContainerDuration;
memcpy(TDesc.AssetID, TDescObj->ResourceID.Value(), UUIDlen);
TDesc.NamespaceName = TDescObj->NamespaceURI;
TDesc.EncodingName = TDescObj->UCSEncoding;