www.pudn.com > JM86.rar > filehandle.c, change:2004-09-16,size:4832b


/********************************************************************** 
 * Software Copyright Licensing Disclaimer 
 * 
 * This software module was originally developed by contributors to the 
 * course of the development of ISO/IEC 14496-10 for reference purposes 
 * and its performance may not have been optimized.  This software 
 * module is an implementation of one or more tools as specified by 
 * ISO/IEC 14496-10.  ISO/IEC gives users free license to this software 
 * module or modifications thereof. Those intending to use this software 
 * module in products are advised that its use may infringe existing 
 * patents.  ISO/IEC have no liability for use of this software module 
 * or modifications thereof.  The original contributors retain full 
 * rights to modify and use the code for their own purposes, and to 
 * assign or donate the code to third-parties. 
 * 
 * This copyright notice must be included in all copies or derivative 
 * works.  Copyright (c) ISO/IEC 2004. 
 **********************************************************************/ 
 
/*! 
 ************************************************************************************** 
 * \file 
 *    filehandle.c 
 * \brief 
 *     Trace file handling and standard error handling function. 
 * \author 
 *    Main contributors (see contributors.h for copyright, address and affiliation details) 
 *      - Karsten Suehring            <suehring@hhi.de> 
 *************************************************************************************** 
 */ 
 
#include <stdlib.h> 
 
#include "contributors.h" 
#include "global.h" 
#include "mbuffer.h" 
 
/*! 
 ************************************************************************ 
 * \brief 
 *    Error handling procedure. Print error message to stderr and exit 
 *    with supplied code. 
 * \param text 
 *    Error message 
 * \param code 
 *    Exit code 
 ************************************************************************ 
 */ 
void error(char *text, int code) 
{ 
  fprintf(stderr, "%s\n", text); 
  flush_dpb(); 
  exit(code); 
} 
 
#if TRACE 
 
static int bitcounter = 0; 
 
/*! 
 ************************************************************************ 
 * \brief 
 *    Tracing bitpatterns for symbols 
 *    A code word has the following format: 0 Xn...0 X2 0 X1 0 X0 1 
 ************************************************************************ 
 */ 
void tracebits( 
    const char *trace_str,  //!< tracing information, char array describing the symbol 
    int len,                //!< length of syntax element in bits 
    int info,               //!< infoword of syntax element 
    int value1) 
{ 
 
  int i, chars; 
  // int outint = 1; 
 
  if(len>=34) 
  { 
    snprintf(errortext, ET_SIZE, "Length argument to put too long for trace to work"); 
    error (errortext, 600); 
  } 
 
 
  putc('@', p_trace); 
  chars = fprintf(p_trace, "%i", bitcounter); 
  while(chars++ < 6) 
    putc(' ',p_trace); 
 
  chars += fprintf(p_trace, " %s", trace_str); 
  while(chars++ < 55) 
    putc(' ',p_trace); 
 
  // Align bitpattern 
  if(len<15) 
  { 
    for(i=0 ; i<15-len ; i++) 
      fputc(' ', p_trace); 
  } 
 
  // Print bitpattern 
  for(i=0 ; i<len/2 ; i++) 
  { 
    fputc('0', p_trace); 
  } 
  // put 1 
  fprintf(p_trace, "1"); 
 
  // Print bitpattern 
  for(i=0 ; i<len/2 ; i++) 
  { 
      if (0x01 & ( info >> ((len/2-i)-1))) 
        fputc('1', p_trace); 
      else 
        fputc('0', p_trace); 
  } 
 
  fprintf(p_trace, "  (%3d)\n", value1); 
  bitcounter += len; 
 
  fflush (p_trace); 
 
} 
 
/*! 
 ************************************************************************ 
 * \brief 
 *    Tracing bitpatterns  
 ************************************************************************ 
 */ 
void tracebits2( 
    const char *trace_str,  //!< tracing information, char array describing the symbol 
    int len,                //!< length of syntax element in bits 
    int info) 
{ 
 
  int i, chars; 
  // int outint = 1; 
 
  if(len>=45) 
  { 
    snprintf(errortext, ET_SIZE, "Length argument to put too long for trace to work"); 
    error (errortext, 600); 
  } 
 
 
  putc('@', p_trace); 
  chars = fprintf(p_trace, "%i", bitcounter); 
  while(chars++ < 6) 
    putc(' ',p_trace); 
  chars += fprintf(p_trace, " %s", trace_str); 
  while(chars++ < 55) 
    putc(' ',p_trace); 
 
  // Align bitpattern 
  if(len<15) 
    for(i=0 ; i<15-len ; i++) 
      fputc(' ', p_trace); 
 
 
  bitcounter += len; 
  while (len >= 32) 
  { 
    for(i=0 ; i<8 ; i++) 
    { 
      fputc('0', p_trace); 
    } 
    len -= 8; 
 
  } 
  // Print bitpattern 
  for(i=0 ; i<len ; i++) 
  { 
    if (0x01 & ( info >> (len-i-1))) 
      fputc('1', p_trace); 
    else 
      fputc('0', p_trace); 
  } 
 
  fprintf(p_trace, "  (%3d)\n", info); 
 
  fflush (p_trace); 
 
} 
 
#endif