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/*
* sanity_check.c
*
* Copyright (C) Aaron Holtzman - May 1999
*
* This file is part of ac3dec, a free Dolby AC-3 stream decoder.
*
* ac3dec is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* ac3dec 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#include <stdlib.h>
#include <stdio.h>
#include "ac3.h"
#include "ac3_internal.h"
#include "sanity_check.h"
/**
*
**/
void sanity_check_init(syncinfo_t *syncinfo, bsi_t *bsi, audblk_t *audblk)
{
syncinfo->magic = AC3_MAGIC_NUMBER;
bsi->magic = AC3_MAGIC_NUMBER;
audblk->magic1 = AC3_MAGIC_NUMBER;
audblk->magic2 = AC3_MAGIC_NUMBER;
audblk->magic3 = AC3_MAGIC_NUMBER;
}
/**
*
**/
int sanity_check(syncinfo_t *syncinfo, bsi_t *bsi, audblk_t *audblk)
{
int i;
if(syncinfo->magic != AC3_MAGIC_NUMBER) {
fprintf(stderr,"\n** Sanity check failed -- syncinfo magic number **");
return -1;
}
if(bsi->magic != AC3_MAGIC_NUMBER) {
fprintf(stderr,"\n** Sanity check failed -- bsi magic number **");
return -1;
}
if(audblk->magic1 != AC3_MAGIC_NUMBER) {
fprintf(stderr,"\n** Sanity check failed -- audblk magic number 1 **");
return -1;
}
if(audblk->magic2 != AC3_MAGIC_NUMBER) {
fprintf(stderr,"\n** Sanity check failed -- audblk magic number 2 **");
return -1;
}
if(audblk->magic3 != AC3_MAGIC_NUMBER) {
fprintf(stderr,"\n** Sanity check failed -- audblk magic number 3 **");
return -1;
}
for(i = 0;i < 5 ; i++) {
if (audblk->fbw_exp[i][255] !=0 || audblk->fbw_exp[i][254] !=0 ||
audblk->fbw_exp[i][253] !=0) {
fprintf(stderr,"\n** Sanity check failed -- fbw_exp out of bounds **");
return -1;
}
if (audblk->fbw_bap[i][255] !=0 || audblk->fbw_bap[i][254] !=0 ||
audblk->fbw_bap[i][253] !=0) {
fprintf(stderr,"\n** Sanity check failed -- fbw_bap out of bounds **");
return -1;
}
}
if (audblk->cpl_exp[255] !=0 || audblk->cpl_exp[254] !=0 ||
audblk->cpl_exp[253] !=0) {
fprintf(stderr,"\n** Sanity check failed -- cpl_exp out of bounds **");
return -1;
}
if (audblk->cpl_bap[255] !=0 || audblk->cpl_bap[254] !=0 ||
audblk->cpl_bap[253] !=0) {
fprintf(stderr,"\n** Sanity check failed -- cpl_bap out of bounds **");
return -1;
}
if (audblk->cpl_flt[255] !=0 || audblk->cpl_flt[254] !=0 ||
audblk->cpl_flt[253] !=0) {
fprintf(stderr,"\n** Sanity check failed -- cpl_mant out of bounds **");
return -1;
}
if ((audblk->cplinu == 1) && (audblk->cplbegf > (audblk->cplendf+2))) {
fprintf(stderr,"\n** Sanity check failed -- cpl params inconsistent **");
return -1;
}
for(i=0; i < bsi->nfchans; i++) {
if((audblk->chincpl[i] == 0) && (audblk->chbwcod[i] > 60)) {
fprintf(stderr,"\n** Sanity check failed -- chbwcod too big **");
return -1;
}
}
return 0;
}
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