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annotate fir/rdcommon.c @ 381:ca75ac283888

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compal/audio: analysis of handheld mode omr readouts made by Das Signal
author Mychaela Falconia <falcon@freecalypso.org>
date Tue, 09 Nov 2021 18:49:09 +0000
parents 9b3e5be96bab
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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1 /*
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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2 * This C file is not a compilation unit in itself, but is the common piece
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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3 * (a set of static variables and functions) included in the librftab modules
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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4 * responsible for reading different kinds of ASCII tables.
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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5 */
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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6
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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7 #define MAX_FIELDS_PER_LINE 64
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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8
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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9 static char *filename;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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10 static FILE *rdfile;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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11 static unsigned lineno;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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12 static char linebuf[256], *line_fields[MAX_FIELDS_PER_LINE];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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13 static unsigned line_nfields, line_field_ptr;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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14
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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15 static int
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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16 read_line()
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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17 {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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18 char *cp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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19
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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20 if (!fgets(linebuf, sizeof linebuf, rdfile))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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21 return(0);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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22 lineno++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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23 cp = linebuf;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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24 for (line_nfields = 0; ; ) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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25 while (isspace(*cp))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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26 cp++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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27 if (*cp == '\0' || *cp == '#')
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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28 break;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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29 if (line_nfields >= MAX_FIELDS_PER_LINE) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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30 fprintf(stderr,
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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31 "%s line %d: too many fields on one line\n",
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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32 filename, lineno);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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33 return(-1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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34 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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35 line_fields[line_nfields++] = cp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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36 while (*cp && !isspace(*cp))
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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37 cp++;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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38 if (*cp)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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39 *cp++ = '\0';
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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40 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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41 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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42 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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43
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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44 static
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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45 get_field(retp)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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46 char **retp;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
parents:
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47 {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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48 int rc;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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49
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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50 if (line_field_ptr < line_nfields) {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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51 *retp = line_fields[line_field_ptr++];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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52 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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53 }
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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54 do {
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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55 rc = read_line();
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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56 if (rc <= 0)
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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57 return(rc);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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58 } while (!line_nfields);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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59 *retp = line_fields[0];
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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60 line_field_ptr = 1;
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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61 return(1);
9b3e5be96bab fir2freq: a tool for analyzing captured FIR coefficient sets
Mychaela Falconia <falcon@freecalypso.org>
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62 }