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 #ifndef EBMLBUFFERWRITER_HPP

 #define EBMLBUFFERWRITER_HPP

 typedef struct {

   unsigned long long offset;

 } EbmlLoc;

 typedef struct {

   unsigned char *buf;

   unsigned int length;

   unsigned int offset;

 } EbmlGlobal;

 void Ebml_Write(EbmlGlobal *glob, const void *buffer_in, unsigned long len);

 void Ebml_Serialize(EbmlGlobal *glob, const void *buffer_in,

                     int buffer_size, unsigned long len);

 void Ebml_StartSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc, unsigned long class_id);

 void Ebml_EndSubElement(EbmlGlobal *glob,  EbmlLoc *ebmlLoc);

 #endif