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/*
lpc_export.c
Copyright (C) 1995 John ffitch
This file is part of Csound.
The Csound Library is free software; you can redistribute it
and/or modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
Csound is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with Csound; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
02110-1301 USA
*/
/* ***************************************************************** */
/* ******** Program to export lpanal files in tabular format. ****** */
/* ***************************************************************** */
/* ***************************************************************** */
/* John ffitch 1995 Jun 25 */
/* Restored version that does not load all Csound5 */
/* ***************************************************************** */
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#ifndef MYFLT
#include "sysdep.h"
#endif
#include "lpc.h"
#define Str(x) x
void lpc_export_usage(void)
{
printf(Str("usage: lpc_export lpc_file cstext-file\n"));
}
int main(int argc, char **argv)
{
FILE *inf;
FILE *outf;
LPHEADER hdr;
uint32_t i, j;
char *str = NULL;
MYFLT *coef = NULL;
if (argc!= 3) {
lpc_export_usage();
return 1;
}
inf = fopen(argv[1], "rb");
if (inf == NULL) {
printf(Str("Cannot open input file %s\n"), argv[1]);
return 1;
}
outf = fopen(argv[2], "w");
if (outf == NULL) {
printf(Str("Cannot open output file %s\n"), argv[2]);
fclose(inf);
return 1;
}
if (fread(&hdr, sizeof(LPHEADER)-4, 1, inf) != 1 ||
(hdr.lpmagic != LP_MAGIC && hdr.lpmagic != LP_MAGIC2)) {
printf(Str("Failed to read LPC header\n"));
fclose(inf);
fclose(outf);
return 1;
}
fprintf(outf, "%d,%d,%d,%d,%f,%f,%f",
hdr.headersize, hdr.lpmagic, hdr.npoles, hdr.nvals,
hdr.framrate, hdr.srate, hdr.duration);
if (hdr.headersize>1024 || hdr.headersize<sizeof(LPHEADER)) {
fprintf(stderr, Str("corrupt header\n"));
exit(1);
}
str = (char *)malloc((size_t)(hdr.headersize-sizeof(LPHEADER)+4));
if (UNLIKELY(str == NULL)) exit(1);
if (UNLIKELY(fread(&str, sizeof(char),
hdr.headersize-sizeof(LPHEADER)+4, inf)!=
hdr.headersize-sizeof(LPHEADER)+4)){
fprintf(stderr, Str("Read failure\n"));
exit(1);
}
if (UNLIKELY(hdr.headersize>100)) hdr.headersize = 101;
for (i=0; i<hdr.headersize-sizeof(LPHEADER)+4; i++)
putc(str[i],outf);
if (UNLIKELY(hdr.headersize > 100))
putc('\n', outf);
if (hdr.npoles+hdr.nvals > 0
&& hdr.npoles+hdr.nvals < 0x0FFFFFFF
&& hdr.npoles > 0) {
coef = (MYFLT *)malloc(((uint64_t)hdr.npoles+hdr.nvals)*sizeof(MYFLT));
for (i = 0; i<floor(hdr.framrate*hdr.duration); i++) {
if (UNLIKELY(fread(coef, sizeof(MYFLT), hdr.npoles,inf) != hdr.npoles)) {
fprintf(stderr, Str("Read failure\n"));
exit(1);
}
for (j=0; j<hdr.npoles; j++)
fprintf(outf, "%f%c", coef[j], (j==hdr.npoles-1 ? '\n' : ','));
}
}
fclose(outf);
fclose(inf);
if (hdr.npoles+hdr.nvals > 0 && hdr.npoles > 0 && coef != NULL) free(coef);
free(str);
return 0;
}
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