mirror of https://github.com/VDR4Arch/vdr.git
125 lines
3.3 KiB
C
125 lines
3.3 KiB
C
/*
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* sanity_check.c
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*
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* Copyright (C) Aaron Holtzman - May 1999
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*
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* This file is part of ac3dec, a free Dolby AC-3 stream decoder.
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*
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* ac3dec is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* ac3dec is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include "ac3.h"
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#include "ac3_internal.h"
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#include "sanity_check.h"
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/**
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*
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**/
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void sanity_check_init(syncinfo_t *syncinfo, bsi_t *bsi, audblk_t *audblk)
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{
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syncinfo->magic = AC3_MAGIC_NUMBER;
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bsi->magic = AC3_MAGIC_NUMBER;
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audblk->magic1 = AC3_MAGIC_NUMBER;
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audblk->magic2 = AC3_MAGIC_NUMBER;
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audblk->magic3 = AC3_MAGIC_NUMBER;
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}
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/**
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*
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**/
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int sanity_check(syncinfo_t *syncinfo, bsi_t *bsi, audblk_t *audblk)
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{
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int i;
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if(syncinfo->magic != AC3_MAGIC_NUMBER) {
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fprintf(stderr,"\n** Sanity check failed -- syncinfo magic number **");
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return -1;
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}
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if(bsi->magic != AC3_MAGIC_NUMBER) {
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fprintf(stderr,"\n** Sanity check failed -- bsi magic number **");
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return -1;
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}
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if(audblk->magic1 != AC3_MAGIC_NUMBER) {
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fprintf(stderr,"\n** Sanity check failed -- audblk magic number 1 **");
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return -1;
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}
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if(audblk->magic2 != AC3_MAGIC_NUMBER) {
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fprintf(stderr,"\n** Sanity check failed -- audblk magic number 2 **");
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return -1;
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}
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if(audblk->magic3 != AC3_MAGIC_NUMBER) {
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fprintf(stderr,"\n** Sanity check failed -- audblk magic number 3 **");
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return -1;
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}
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for(i = 0;i < 5 ; i++) {
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if (audblk->fbw_exp[i][255] !=0 || audblk->fbw_exp[i][254] !=0 ||
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audblk->fbw_exp[i][253] !=0) {
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fprintf(stderr,"\n** Sanity check failed -- fbw_exp out of bounds **");
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return -1;
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}
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if (audblk->fbw_bap[i][255] !=0 || audblk->fbw_bap[i][254] !=0 ||
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audblk->fbw_bap[i][253] !=0) {
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fprintf(stderr,"\n** Sanity check failed -- fbw_bap out of bounds **");
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return -1;
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}
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}
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if (audblk->cpl_exp[255] !=0 || audblk->cpl_exp[254] !=0 ||
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audblk->cpl_exp[253] !=0) {
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fprintf(stderr,"\n** Sanity check failed -- cpl_exp out of bounds **");
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return -1;
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}
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if (audblk->cpl_bap[255] !=0 || audblk->cpl_bap[254] !=0 ||
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audblk->cpl_bap[253] !=0) {
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fprintf(stderr,"\n** Sanity check failed -- cpl_bap out of bounds **");
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return -1;
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}
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if (audblk->cpl_flt[255] !=0 || audblk->cpl_flt[254] !=0 ||
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audblk->cpl_flt[253] !=0) {
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fprintf(stderr,"\n** Sanity check failed -- cpl_mant out of bounds **");
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return -1;
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}
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if ((audblk->cplinu == 1) && (audblk->cplbegf > (audblk->cplendf+2))) {
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fprintf(stderr,"\n** Sanity check failed -- cpl params inconsistent **");
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return -1;
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}
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for(i=0; i < bsi->nfchans; i++) {
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if((audblk->chincpl[i] == 0) && (audblk->chbwcod[i] > 60)) {
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fprintf(stderr,"\n** Sanity check failed -- chbwcod too big **");
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return -1;
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}
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}
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return 0;
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}
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