Esempio n. 1
0
/* this parses a name-value pair of npt:xxx, smpte:xxx etc. */
double
cmml_sec_parse (const char * str)
{
  char timespec[16];

  if (str == NULL) return -1.0;

  if (sscanf (str, "npt:%16s", timespec) == 1) {
    return parse_npt (str+4); /* could be longer than 16 :) */
  }

  if (sscanf (str, "smpte-24:%16s", timespec) == 1) {
    return parse_smpte (str+9, 24.0);
  }
  
  if (sscanf (str, "smpte-24-drop:%16s", timespec) == 1) {
    return parse_smpte (str+14, 23.976);
  }
  
  if (sscanf (str, "smpte-25:%16s", timespec) == 1) {
    return parse_smpte (str+9, 25.0);
  }
  
  if (sscanf (str, "smpte-30:%16s", timespec) == 1) {
    return parse_smpte (str+9, 30.0);
  }
  
  if (sscanf (str, "smpte-30-drop:%16s", timespec) == 1) {
    return parse_smpte (str+14, 29.97);
  }
  
  if (sscanf (str, "smpte-50:%16s", timespec) == 1) {
    return parse_smpte (str+9, 50.0);
  }
  
  if (sscanf (str, "smpte-60:%16s", timespec) == 1) {
    return parse_smpte (str+9, 60);
  }

  if (sscanf (str, "smpte-60-drop:%16s", timespec) == 1) {
    return parse_smpte (str+14, 59.94);
  }

  /* default is npt */
  return parse_npt(str);

}
Esempio n. 2
0
double
anx_parse_time (const char * str)
{
  char timespec[16];

  if (str == NULL) return -1.0;

  if (sscanf (str, "npt:%16s", timespec) == 1) {
    return parse_npt (timespec);
  }

  if (sscanf (str, "smpte-24:%16s", timespec) == 1) {
    return parse_smpte (timespec, 24.0);
  }
  
  if (sscanf (str, "smpte-24-drop:%16s", timespec) == 1) {
    return parse_smpte (timespec, 23.976);
  }
  
  if (sscanf (str, "smpte-25:%16s", timespec) == 1) {
    return parse_smpte (timespec, 25.0);
  }
  
  if (sscanf (str, "smpte-30:%16s", timespec) == 1) {
    return parse_smpte (timespec, 30.0);
  }
  
  if (sscanf (str, "smpte-30-drop:%16s", timespec) == 1) {
    return parse_smpte (timespec, 29.97);
  }
  
  if (sscanf (str, "smpte-50:%16s", timespec) == 1) {
    return parse_smpte (timespec, 50.0);
  }
  
  if (sscanf (str, "smpte-60:%16s", timespec) == 1) {
    return parse_smpte (timespec, 60);
  }

  if (sscanf (str, "smpte-60-drop:%16s", timespec) == 1) {
    return parse_smpte (timespec, 59.94);
  }

  return parse_npt(str);
}
Esempio n. 3
0
/* creates two time constructs if the string was a time range, otherwise
   just a t_start time, and returns the number of times created;
   examples: npt:40,79 or smpte-25:00:20:20,00:21:30 */
int 
cmml_time_interval_new (const char * s, 
			CMML_Time ** t_start, CMML_Time ** t_end)
{
  char * after_scheme = NULL;
  char * pos = NULL;
  char * start_time = NULL;
  int len_start_time = 0;
  double seconds = -1.0;

  if (s == NULL) return -1;
  after_scheme = strchr(s, ':');
  if (after_scheme == NULL) after_scheme = (char *) s;
  if ((pos=strchr(after_scheme, ',')) == NULL) {
    /* it's just a time point */
    *t_end = NULL;
    *t_start = cmml_time_new(s);
#ifdef DEBUG
    fprintf(stderr, "start time %f\n", (*t_start)->t.sec);
#endif
    return 1;
  } else {
    /* it's a time range */
    len_start_time = (int)(strlen(s) - strlen(pos));
    start_time = (char *) cmml_malloc(len_start_time+1);
    start_time = strncpy (start_time, s, len_start_time);
    start_time[len_start_time]='\0';
    *t_start = cmml_time_new(start_time);
    if ((*t_start)->type == CMML_UTC_TIME) {
      *t_end = cmml_utc_new(pos+1);
    } else {
      /* Find out what type the timestamp is and parse appropriately */
      if (strncmp(s, "smpte-24", 8) == 0) {
	seconds = parse_smpte(pos+1, 24.0);
      } else if (strncmp(s, "smpte-24-drop", 13) == 0) {
	seconds = parse_smpte(pos+1, 23.976);
      } else if (strncmp(s, "smpte-25", 8) == 0) {
	seconds = parse_smpte(pos+1, 25.0);
      } else if (strncmp(s, "smpte-30", 8) == 0) {
	seconds = parse_smpte(pos+1, 30.0);
      } else if (strncmp(s, "smpte-30-drop", 13) == 0) {
	seconds = parse_smpte(pos+1, 29.97);
      } else if (strncmp(s, "smpte-50", 8) == 0) {
	seconds = parse_smpte(pos+1, 50.0);
      } else if (strncmp(s, "smpte-60", 8) == 0) {
	seconds = parse_smpte(pos+1, 60.0);
      } else if (strncmp(s, "smpte-60-drop", 13) == 0) {
	seconds = parse_smpte(pos+1, 59.94);
      } else {
	/* default is npt */
	*t_end = cmml_time_new(pos+1);
      } 
      /* create t_end for the smpte timecodes */
      if (seconds > 0) {
	*t_end = (CMML_Time *) cmml_malloc(sizeof(CMML_Time));
	(*t_end)->tstr = cmml_strdup(pos+1);
	(*t_end)->type = CMML_SEC_TIME;
	(*t_end)->t.sec = seconds;
      }
    }
    return 2;
  }
  return -1;
}