diff --git a/k9author/k9avidecode.cpp b/k9author/k9avidecode.cpp
index 1ef120d..7e19a7f 100644
--- a/k9author/k9avidecode.cpp
+++ b/k9author/k9avidecode.cpp
@@ -28,6 +28,14 @@ void *CodecHandle=0;
 void *FormatHandle=0;
 int glibref=0;
 
+void av_free_packet(AVPacket *pkt)
+{
+  if (pkt) {
+    if (pkt->destruct) pkt->destruct(pkt);
+    pkt->data = NULL; pkt->size = 0;
+  }
+}
+
 k9AviDecode::k9AviDecode(QObject *parent, const char *name)
         : QObject(parent, name) {
     if (glibref==0) {