1 files changed, 17 insertions, 4 deletions
diff --git a/src/dabOutput/edi/TagPacket.cpp b/src/dabOutput/edi/TagPacket.cpp
index aa4f23b..435c071 100644
--- a/src/dabOutput/edi/TagPacket.cpp
+++ b/src/dabOutput/edi/TagPacket.cpp
@@ -33,6 +33,8 @@
 #include <stdint.h>
 #include <cassert>
 
+TagPacket::TagPacket(unsigned int alignment) : m_alignment(alignment)
+{ }
 
 std::vector<uint8_t> TagPacket::Assemble()
 {
@@ -49,10 +51,21 @@ std::vector<uint8_t> TagPacket::Assemble()
         //std::cerr << "     Add TAGItem of length " << tag_data.size() << std::endl;
     }
 
-    // Add padding
-    while (packet.size() % 8 > 0)
-    {
-        packet.push_back(0); // TS 102 821, 5.1, "padding shall be undefined"
+    if (m_alignment == 0) { /* no padding */ }
+    else if (m_alignment == 8) {
+        // Add padding inside TAG packet
+        while (packet.size() % 8 > 0) {
+            packet.push_back(0); // TS 102 821, 5.1, "padding shall be undefined"
+        }
+    }
+    else if (m_alignment > 8) {
+        TagStarDMY dmy(m_alignment - 8);
+        auto dmy_data = dmy.Assemble();
+        packet.insert(packet.end(), dmy_data.begin(), dmy_data.end());
+    }
+    else {
+        std::cerr << "Invalid alignment requirement " << m_alignment <<
+            " defined in TagPacket" << std::endl;
     }
 
     return packet;