Add meta code for building an .h -file based on DVB mux descriptors from linux-dvb
This commit is contained in:
Andreas Öman
parent
8ecd958ff2
commit
8f584081bf
2 changed files with 315 additions and 0 deletions
34
muxbuilder/build.sh
Executable file
34
muxbuilder/build.sh
Executable file
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#!/bin/sh
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gcc -O2 -Wall main.c -o muxbuilder
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echo struct mux {
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echo unsigned int freq\;
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echo unsigned int symrate\;
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echo char fec\;
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echo char constellation\;
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echo char bw\;
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echo char fechp\;
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echo char feclp\;
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echo char tmode\;
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echo char guard\;
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echo char hierarchy\;
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echo char polarisation\;
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echo }\;
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find $1/dvb-s -type f | xargs ./muxbuilder 1 FE_QPSK
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find $1/dvb-t -type f | xargs ./muxbuilder 1 FE_OFDM
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find $1/dvb-c -type f | xargs ./muxbuilder 1 FE_QAM
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echo struct {
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echo int type\;
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echo const char *name\;
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echo struct mux *muxes\;
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echo int nmuxes\;
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echo const char *comment\;
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echo } networks[] = {
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find $1/dvb-s -type f | xargs ./muxbuilder 2 FE_QPSK
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find $1/dvb-t -type f | xargs ./muxbuilder 2 FE_OFDM
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find $1/dvb-c -type f | xargs ./muxbuilder 2 FE_QAM
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echo }\;
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281
muxbuilder/main.c
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281
muxbuilder/main.c
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#include <stdlib.h>
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#include <libgen.h>
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <strings.h>
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#include <ctype.h>
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int pass;
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char *type;
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struct strtab {
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const char *v1;
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const char *v2;
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};
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static struct strtab fectab[] = {
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{ "NONE", "FEC_NONE" },
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{ "1/1", "FEC_AUTO" },
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{ "1/2", "FEC_1_2" },
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{ "2/3", "FEC_2_3" },
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{ "3/4", "FEC_3_4" },
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{ "4/5", "FEC_4_5" },
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{ "5/6", "FEC_5_6" },
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{ "6/7", "FEC_6_7" },
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{ "7/8", "FEC_7_8" },
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{ "8/9", "FEC_8_9" },
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{ "AUTO", "FEC_AUTO" }
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};
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static struct strtab qamtab[] = {
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{ "QPSK", "QPSK" },
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{ "QAM16", "QAM_16" },
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{ "QAM32", "QAM_32" },
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{ "QAM64", "QAM_64" },
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{ "QAM128", "QAM_128" },
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{ "QAM256", "QAM_256" },
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{ "AUTO", "QAM_AUTO" },
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{ "8VSB", "VSB_8" },
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{ "16VSB", "VSB_16" }
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};
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static struct strtab bwtab[] = {
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{ "8MHz", "BANDWIDTH_8_MHZ" },
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{ "7MHz", "BANDWIDTH_7_MHZ" },
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{ "6MHz", "BANDWIDTH_6_MHZ" },
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{ "AUTO", "BANDWIDTH_AUTO" }
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};
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static struct strtab modetab[] = {
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{ "2k", "TRANSMISSION_MODE_2K" },
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{ "8k", "TRANSMISSION_MODE_8K" },
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{ "AUTO", "TRANSMISSION_MODE_AUTO" }
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};
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static struct strtab guardtab[] = {
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{ "1/32", "GUARD_INTERVAL_1_32" },
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{ "1/16", "GUARD_INTERVAL_1_16" },
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{ "1/8", "GUARD_INTERVAL_1_8" },
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{ "1/4", "GUARD_INTERVAL_1_4" },
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{ "AUTO", "GUARD_INTERVAL_AUTO" },
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};
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static struct strtab hiertab[] = {
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{ "NONE", "HIERARCHY_NONE" },
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{ "1", "HIERARCHY_1" },
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{ "2", "HIERARCHY_2" },
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{ "4", "HIERARCHY_4" },
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{ "AUTO", "HIERARCHY_AUTO" }
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};
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static const char *
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str2str0(const char *str, struct strtab tab[], int l)
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{
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int i;
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for(i = 0; i < l; i++)
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if(!strcasecmp(str, tab[i].v1))
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return tab[i].v2;
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fprintf(stderr, "Warning, cannot translate %s\n", str);
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return "#error";
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}
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#define str2str(str, tab) str2str0(str, tab, sizeof(tab) / sizeof(tab[0]))
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static void
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dvb_t_config(const char *l)
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{
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unsigned long freq;
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char bw[20], fec[20], fec2[20], qam[20], mode[20], guard[20], hier[20];
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int r;
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r = sscanf(l, "%lu %10s %10s %10s %10s %10s %10s %10s",
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&freq, bw, fec, fec2, qam, mode, guard, hier);
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if(r != 8)
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return;
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printf("\t{.freq = %lu, "
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".bw = %s, "
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".constellation = %s, "
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".fechp = %s, "
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".feclp = %s, "
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".tmode = %s, "
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".guard = %s, "
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".hierarchy = %s},\n "
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,
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freq,
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str2str(bw, bwtab),
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str2str(qam, qamtab),
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str2str(fec, fectab),
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str2str(fec2, fectab),
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str2str(mode, modetab),
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str2str(guard, guardtab),
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str2str(hier, hiertab));
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}
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static void
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dvb_s_config(const char *l)
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{
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unsigned long freq, symrate;
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char fec[20], polarisation;
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int r;
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r = sscanf(l, "%lu %c %lu %s",
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&freq, &polarisation, &symrate, fec);
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if(r != 4)
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return;
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printf("\t{"
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".freq = %lu, .symrate = %lu, .fec = %s, .polarisation = '%c'},\n",
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freq, symrate, str2str(fec, fectab), polarisation);
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}
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static void
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dvb_c_config(const char *l)
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{
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unsigned long freq, symrate;
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char fec[20], qam[20];
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int r;
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r = sscanf(l, "%lu %lu %s %s",
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&freq, &symrate, fec, qam);
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if(r != 4)
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return;
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printf("\t{ "
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".freq = %lu, .symrate = %lu, .fec = %s, .constellation = %s},\n",
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freq, symrate, str2str(fec, fectab), str2str(qam, qamtab));
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}
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static void
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convert_file(char *fname)
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{
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FILE *fp;
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char line[200];
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int l;
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char c, *s;
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char smartname[200];
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const char *bn;
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int gotcomment = 0;
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fp = fopen(fname, "r");
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if(fp == NULL) {
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fprintf(stderr, "Unable to open file %s -- %s", fname, strerror(errno));
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return;
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}
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l = 0;
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bn = basename(fname);
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while(*bn) {
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c = *bn++;
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smartname[l++] = isalnum(c) ? c : '_';
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}
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smartname[l] = 0;
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if(pass == 1) {
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printf("struct mux muxlist_%s_%s[] = {\n", type, smartname);
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}
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if(pass == 2) {
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printf("{\n");
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printf("\t.type = %s,\n", type);
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printf("\t.name = \"%s\",\n", basename(fname));
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printf("\t.muxes = muxlist_%s_%s,\n", type, smartname);
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printf("\t.nmuxes = sizeof(muxlist_%s_%s) / sizeof(struct mux),\n",
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type, smartname);
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printf("\t.comment = ");
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}
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while(!feof(fp)) {
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memset(line, 0, sizeof(line));
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if(fgets(line, sizeof(line) - 1, fp) == NULL)
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break;
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l = strlen(line);
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while(l > 0 && line[l - 1] < 32)
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line[--l] = 0;
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switch(line[0]) {
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case '#':
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if(gotcomment)
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break;
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if(pass != 2)
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break;
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s = line + 2;
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if(strstr(s, " freq "))
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break;
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printf("\"%s\"\n", s);
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gotcomment = 1;
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break;
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case 'C':
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if(pass == 1)
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dvb_c_config(line + 1);
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break;
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case 'T':
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if(pass == 1)
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dvb_t_config(line + 1);
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break;
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case 'S':
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if(pass == 1)
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dvb_s_config(line + 1);
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break;
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default:
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break;
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}
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}
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if(pass == 2) {
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if(gotcomment == 0)
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printf("\"\"\n");
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printf("},\n");
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}
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if(pass == 1) {
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printf("};\n\n");
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}
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fclose(fp);
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}
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int
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main(int argc, char **argv)
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{
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int i;
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if(argc < 3)
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return 1;
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pass = atoi(argv[1]);
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if(pass < 1 || pass > 2)
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return 2;
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type = argv[2];
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for(i = 3; i < argc; i++) {
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convert_file(argv[i]);
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}
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return 0;
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}
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