class av_packet_pointer
{
public:

   AVPacket* m_p;

   av_packet_pointer()
   {

      m_p = av_packet_alloc();

   }


   ~av_packet_pointer()
   {

      av_packet_free(&m_p);

   }

   operator AVPacket* () { return m_p; }

   AVPacket* operator ->() { return m_p; }

};