ref: 30a5a07a7100753b75d01f39d6ed8c1f2cc41d44
dir: /third_party/libmkv/EbmlBufferWriter.h/
#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_StartSubElement(EbmlGlobal *glob, EbmlLoc *ebmlLoc, unsigned long class_id);
void Ebml_EndSubElement(EbmlGlobal *glob,  EbmlLoc *ebmlLoc);
#endif