www.pudn.com > jm50g.zip > nal.c

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/*! 
 ************************************************************************ 
 * \file  nal.c 
 * 
 * \brief 
 *    Converts Encapsulated Byte Sequence Packets (EBSP) to Raw Byte  
 *    Sequence Packets (RBSP), and then onto String Of Data Bits (SODB) 
 * 
 * \author 
 *    Main contributors (see contributors.h for copyright, address and affiliation details) 
 *    - Shankar L. Regunathan  
 ************************************************************************ 
 */ 
 
#include "contributors.h" 
 
#include  
#include  
#include  
#include  
#include  
 
#include "defines.h" 
#include "global.h" 
 
 
 /*! 
 ************************************************************************ 
 * \brief 
 *    Converts RBSP to string of data bits 
 * \param streamBuffer 
 *          pointer to buffer containing data 
 *  \param last_byte_pos 
 *          position of the last byte containing data. 
 * \return last_byte_pos 
 *          position of the last byte pos. If the last-byte was entirely a stuffing byte, 
 *          it is removed, and the last_byte_pos is updated. 
 *   
************************************************************************/ 
 
int RBSPtoSODB(byte *streamBuffer, int last_byte_pos) 
{ 
  int ctr_bit, bitoffset; 
   
  bitoffset = 0;  
  //find trailing 1 
  ctr_bit = (streamBuffer[last_byte_pos-1] & (0x01<