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VTOR.C
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//ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
//ÛÛ ÛÛ
//ÛÛ VTOR.C ÛÛ
//ÛÛ ÛÛ
//ÛÛ .VOC file to raw PCM data conversion utility ÛÛ
//ÛÛ ÛÛ
//ÛÛ V1.00 of 4-Jan-92 ÛÛ
//ÛÛ V1.01 of 14-Jan-92: Stereo .VOC support added ÛÛ
//ÛÛ ÛÛ
//ÛÛ Project: IBM Audio Interface Library ÛÛ
//ÛÛ Author: John Miles ÛÛ
//ÛÛ ÛÛ
//ÛÛ C source compatible with Turbo C++ v1.0 or later ÛÛ
//ÛÛ ÛÛ
//ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
//ÛÛ ÛÛ
//ÛÛ vtor.obj: vtor.c gen.h ÛÛ
//ÛÛ bcc -ml -c -v vtor.c ÛÛ
//ÛÛ ÛÛ
//ÛÛ vtor.exe: vtor.obj gen.lib ÛÛ
//ÛÛ tlink @vtor.lls ÛÛ
//ÛÛ ÛÛ
//ÛÛ Contents of VTOR.LLS: ÛÛ
//ÛÛ /c /v /x + ÛÛ
//ÛÛ \bc\lib\c0l.obj + ÛÛ
//ÛÛ vtor, + ÛÛ
//ÛÛ vtor.exe, + ÛÛ
//ÛÛ vtor.map, + ÛÛ
//ÛÛ \bc\lib\cl.lib gen.lib ÛÛ
//ÛÛ ÛÛ
//ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
//ÛÛ ÛÛ
//ÛÛ Copyright (C) 1991, 1992 Miles Design, Inc. ÛÛ
//ÛÛ ÛÛ
//ÛÛ Miles Design, Inc. ÛÛ
//ÛÛ 10926 Jollyville #308 ÛÛ
//ÛÛ Austin, TX 78759 ÛÛ
//ÛÛ (512) 345-2642 / FAX (512) 338-9630 / BBS (512) 454-9990 ÛÛ
//ÛÛ ÛÛ
//ÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛÛ
#include <stdio.h>
#include <stdlib.h>
#include <dos.h>
#include <alloc.h>
#include <string.h>
#include <io.h>
#include "gen.h" // General DOS and system functions
const char VERSION[] = "1.01";
char out_fn[128];
char in_fn[128];
typedef struct
{
char type_desc[0x14];
unsigned data_blk_offset;
unsigned version;
unsigned IDchk;
}
VOC_hdr;
typedef struct
{
unsigned char type;
unsigned long len;
}
VOC_blk;
#define BLK_TERMINATOR 0
#define BLK_VOICE_DATA 1
#define BLK_VOICE_CONTINUATION 2
#define BLK_SILENCE 3
#define BLK_MARKER 4
#define BLK_ASCII_TEXT 5
#define BLK_REPEAT_LOOP 6
#define BLK_END_REPEAT_LOOP 7
#define BLK_EXTENDED 8
char ptypes[][32] =
{
"8-bit raw or unpacked",
"4-bit packed",
"2.6-bit packed",
"2-bit packed"
};
char far buff[32768];
/************************************************************/
void abend(int err, unsigned long info_1, unsigned long info_2)
{
if (!err) return;
fprintf(stderr,"Error VR%03u: ",err);
switch (err)
{
case 1:
switch (info_1)
{
case 1:
fprintf(stderr,"I/O fault"); break;
case 2:
fprintf(stderr,"Insufficient free memory"); break;
case 3:
fprintf(stderr,"File \"%s\" not found",info_2); break;
case 4:
fprintf(stderr,"Can't write to file \"%s\"",info_2); break;
case 5:
fprintf(stderr,"Can't read from file \"%s\"",info_2); break;
case 6:
fprintf(stderr,"Disk full"); break;
default:
fprintf(stderr,"Undefined disk error"); break;
}
break;
case 2:
fprintf(stderr,"File \"%s\" not a standard .VOC file",info_1);
break;
case 3:
fprintf(stderr,".VOC file \"%s\" contains blocks with different sample rates",
info_1);
break;
case 4:
fprintf(stderr,".VOC file \"%s\" uses silence packing",info_1);
break;
case 5:
fprintf(stderr,".VOC file \"%s\" contains an endless or invalid loop",info_1);
break;
case 6:
fprintf(stderr,".VOC file \"%s\" contains no Voice Data blocks",info_1);
break;
case 7:
fprintf(stderr,".VOC file \"%s\" uses multiple packing types",
info_1);
break;
case 8:
fprintf(stderr,".VOC file \"%s\" uses an unknown packing type",
info_1);
break;
case 9:
fprintf(stderr,".VOC file \"%s\" contains mixed stereo and mono data",
info_1);
break;
}
fprintf(stderr,"\n");
fcloseall();
if (strlen(out_fn)) unlink(out_fn);
exit(err);
}
/***************************************************************/
unsigned VOC_next_blk(FILE *in, VOC_blk far *VB)
{
VB->type = 0xff;
VB->len = 0L;
fread(&VB->type,sizeof(VB->type),1,in);
if (VB->type != BLK_TERMINATOR)
{
fread(&VB->len,3,1,in);
VB->len &= 0x00ffffffL;
}
return VB->type;
}
void FILE_copy_data(FILE *in, FILE *out, unsigned long data_len)
{
while (data_len > sizeof(buff))
{
if (fread(&buff,1,sizeof(buff),in) != sizeof(buff))
abend(1,5,(unsigned long) in_fn);
if (fwrite(&buff,1,sizeof(buff),out) != sizeof(buff))
abend(1,4,(unsigned long) out_fn);
data_len -= sizeof(buff);
}
if (fread(&buff,1,data_len,in) != data_len)
abend(1,5,(unsigned long) in_fn);
if (fwrite(&buff,1,data_len,out) != data_len)
abend(1,4,(unsigned long) out_fn);
}
/***************************************************************/
void main(int argc, char *argv[])
{
FILE *in,*out;
int bad,strcnt;
int infile;
int i,done;
unsigned hertz,rep_cnt;
unsigned char sr,pack,type_sr,type_pack;
unsigned long next_block,rep_pos;
unsigned xblk_status,xblk_sr;
unsigned char xblk_pack;
int xblk_mode,xblk_lastmode;
VOC_hdr VH;
VOC_blk VB;
printf("\nVTOR version %s Copyright (C) 1991, 1992 Miles Design, Inc.\n",VERSION);
printf("-------------------------------------------------------------------------------\n\n");
strcpy(out_fn,"");
strcpy(in_fn,"");
bad=strcnt=0;
for (i=1;i<argc;i++)
if (argv[i][0] != '/')
{
++strcnt;
if (strcnt == 2)
strcpy(out_fn,argv[i]);
if (strcnt == 1)
strcpy(in_fn,argv[i]);
}
else
{
bad=1; break;
}
if (bad || (strcnt != 2))
{
printf("This program converts standard Sound Blaster .VOC files to raw PCM\n");
printf("data samples. .VOC files to be converted may be of any length \n");
printf("and must not use silence packing or multiple sample rates.\n\n");
printf("Usage: VTOR filename.VOC output_filename\n");
exit(1);
}
printf("Converting, please wait ....\n\n");
in = fopen(in_fn,"rb");
if (in==NULL) abend(1,3,(unsigned long) in_fn);
out = fopen(out_fn,"w+b");
if (out==NULL) abend(1,4,(unsigned long) out_fn);
fread(&VH,sizeof(VOC_hdr),1,in);
VH.type_desc[0x13] = 0;
if (stricmp(VH.type_desc,"Creative Voice File"))
abend(2,(unsigned long) in_fn,0L);
hertz = 0;
xblk_status = 0;
xblk_mode = -1;
fseek(in,VH.data_blk_offset,SEEK_SET);
while (VOC_next_blk(in,&VB) != BLK_TERMINATOR)
{
next_block = ftell(in) + VB.len;
switch (VB.type)
{
case BLK_VOICE_DATA:
fread(&sr,sizeof(sr),1,in);
fread(&pack,sizeof(pack),1,in);
if (xblk_status)
{
sr = xblk_sr >> 8;
pack = xblk_pack;
xblk_status = 0;
}
else
{
if (xblk_mode == 1)
abend(9,(unsigned long) in_fn,0L);
xblk_mode = 0;
}
if (!hertz)
{
type_sr = sr;
type_pack = pack;
hertz = (unsigned) (1000000L / (256L - (unsigned long) sr));
}
else
if (type_sr != sr)
abend(3,(unsigned long) in_fn,0L);
else if (type_pack != pack)
abend(7,(unsigned long) in_fn,0L);
if (pack >= (sizeof(ptypes) / sizeof(ptypes[0])))
abend(8,(unsigned long) in_fn,0L);
FILE_copy_data(in,out,VB.len - 2L);
break;
case BLK_VOICE_CONTINUATION:
FILE_copy_data(in,out,VB.len);
break;
case BLK_REPEAT_LOOP:
fread(&rep_cnt,sizeof(rep_cnt),1,in);
if ((rep_cnt == 0xffff) || (rep_cnt == 0))
abend(5,(unsigned long) in_fn,0L);
rep_pos = ftell(in);
break;
case BLK_END_REPEAT_LOOP:
if (rep_cnt--)
next_block = rep_pos;
break;
case BLK_SILENCE:
abend(4,(unsigned long) in_fn,0L);
break;
case BLK_MARKER:
case BLK_ASCII_TEXT:
break;
case BLK_EXTENDED:
xblk_lastmode = xblk_mode;
fread(&xblk_sr,sizeof(xblk_sr),1,in);
fread(&xblk_pack,sizeof(xblk_pack),1,in);
fread(&xblk_mode,sizeof(xblk_mode),1,in);
xblk_status = 1;
if (((xblk_lastmode==1) && (xblk_mode==0)) ||
((xblk_lastmode==0) && (xblk_mode==1)))
abend(9,(unsigned long) in_fn,0L);
break;
default:
printf("Warning: skipping unrecognized block type (%u)\n\n",
VB.type);
}
fseek(in,next_block,SEEK_SET);
}
fclose(in);
fclose(out);
if (!hertz)
abend(6,(unsigned long) in_fn,0L);
printf("File \"%s\" created.\n\n",out_fn);
printf(" Output file size: %lu\n",file_size(out_fn));
printf(" Packing type: %s",ptypes[pack]);
if (xblk_mode)
printf(" (Stereo)\n");
else
printf(" (Monaural)\n");
printf(" Sample rate in hertz: %u",hertz);
if (xblk_mode)
printf(" (%lu bytes/sec)",hertz/2L);
printf("\n");
printf("AIL sound_buff.sample_rate byte: %u\n",(unsigned) sr);
exit(0);
}