mirror of
https://github.com/ScrelliCopter/VGM-Tools
synced 2025-02-21 04:09:25 +11:00
406 lines
9.3 KiB
C
406 lines
9.3 KiB
C
/*; YM2610 ADPCM-B Codec
|
|
;
|
|
;**** PCM to ADPCM-B & ADPCM-B to PCM converters for NEO-GEO System ****
|
|
;ADPCM-B - 1 channel 1.8-55.5 KHz, 16 MB Sample ROM size, 256 B min size of sample, 16 MB max, compatable with YM2608
|
|
;
|
|
;http://www.raregame.ru/file/15/YM2610.pdf YM2610 DATASHEET
|
|
;
|
|
; Fred/FRONT
|
|
;
|
|
;Usage 1: ADPCM_Encode.exe -d [-r:reg,clock] Input.bin Output.wav
|
|
;Usage 2: ADPCM_Encode.exe -e Input.wav Output.bin
|
|
;
|
|
; Valley Bell
|
|
;----------------------------------------------------------------------------------------------------------------------------*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <stdint.h>
|
|
#include "util.h"
|
|
|
|
// -- from mmsystem.h --
|
|
//FIXME: DEELT THIS
|
|
#define MAKEFOURCC(ch0, ch1, ch2, ch3) \
|
|
((uint32_t)(uint8_t)(ch0) | ((uint32_t)(uint8_t)(ch1) << 8) | \
|
|
((uint32_t)(uint8_t)(ch2) << 16) | ((uint32_t)(uint8_t)(ch3) << 24 ))
|
|
|
|
// -- from mmreg.h, slightly modified --
|
|
|
|
/* general waveform format structure (information common to all formats) */
|
|
typedef struct waveformat_tag {
|
|
uint16_t wFormatTag; /* format type */
|
|
uint16_t nChannels; /* number of channels (i.e. mono, stereo...) */
|
|
uint32_t nSamplesPerSec; /* sample rate */
|
|
uint32_t nAvgBytesPerSec; /* for buffer estimation */
|
|
uint16_t nBlockAlign; /* block size of data */
|
|
uint16_t wBitsPerSample;
|
|
} WAVEFORMAT;
|
|
|
|
/* flags for wFormatTag field of WAVEFORMAT */
|
|
#define WAVE_FORMAT_PCM 1
|
|
|
|
// -- from mm*.h end --
|
|
|
|
#define FOURCC_RIFF MAKEFOURCC('R', 'I', 'F', 'F')
|
|
#define FOURCC_WAVE MAKEFOURCC('W', 'A', 'V', 'E')
|
|
#define FOURCC_fmt_ MAKEFOURCC('f', 'm', 't', ' ')
|
|
#define FOURCC_data MAKEFOURCC('d', 'a', 't', 'a')
|
|
|
|
typedef struct
|
|
{
|
|
uint32_t RIFFfcc; // 'RIFF'
|
|
uint32_t RIFFLen;
|
|
uint32_t WAVEfcc; // 'WAVE'
|
|
uint32_t fmt_fcc; // 'fmt '
|
|
uint32_t fmt_Len;
|
|
WAVEFORMAT fmt_Data;
|
|
uint32_t datafcc; // 'data'
|
|
uint32_t dataLen;
|
|
} WAVE_FILE;
|
|
|
|
|
|
static const long stepsizeTable[16] =
|
|
{
|
|
57, 57, 57, 57, 77, 102, 128, 153,
|
|
57, 57, 57, 57, 77, 102, 128, 153
|
|
};
|
|
|
|
static int YM2610_ADPCM_Encode(int16_t *src, uint8_t *dest, int len)
|
|
{
|
|
int lpc, flag;
|
|
long i, dn, xn, stepSize;
|
|
uint8_t adpcm;
|
|
uint8_t adpcmPack;
|
|
|
|
xn = 0;
|
|
stepSize = 127;
|
|
flag = 0;
|
|
|
|
for (lpc = 0; lpc < len; lpc ++)
|
|
{
|
|
dn = *src - xn;
|
|
src ++;
|
|
|
|
i = (labs(dn) << 16) / (stepSize << 14);
|
|
if (i > 7)
|
|
i = 7;
|
|
adpcm = (uint8_t)i;
|
|
|
|
i = (adpcm * 2 + 1) * stepSize / 8;
|
|
|
|
if (dn < 0)
|
|
{
|
|
adpcm |= 0x8;
|
|
xn -= i;
|
|
}
|
|
else
|
|
{
|
|
xn += i;
|
|
}
|
|
|
|
stepSize = (stepsizeTable[adpcm] * stepSize) / 64;
|
|
|
|
if (stepSize < 127)
|
|
stepSize = 127;
|
|
else if (stepSize > 24576)
|
|
stepSize = 24576;
|
|
|
|
if (flag == 0)
|
|
{
|
|
adpcmPack = (adpcm << 4);
|
|
flag = 1;
|
|
}
|
|
else
|
|
{
|
|
adpcmPack |= adpcm;
|
|
*dest = adpcmPack;
|
|
dest ++;
|
|
flag = 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int YM2610_ADPCM_Decode(uint8_t *src, int16_t *dest, int len)
|
|
{
|
|
int lpc, shift, step;
|
|
long i, xn, stepSize;
|
|
uint8_t adpcm;
|
|
|
|
xn = 0;
|
|
stepSize = 127;
|
|
shift = 4;
|
|
step = 0;
|
|
|
|
for (lpc = 0; lpc < len; lpc ++)
|
|
{
|
|
adpcm = (*src >> shift) & 0xf;
|
|
|
|
i = ((adpcm & 7) * 2 + 1) * stepSize / 8;
|
|
if (adpcm & 8)
|
|
xn -= i;
|
|
else
|
|
xn += i;
|
|
|
|
xn = CLAMP(xn, -32768, 32767);
|
|
|
|
stepSize = stepSize * stepsizeTable[adpcm] / 64;
|
|
|
|
if (stepSize < 127)
|
|
stepSize = 127;
|
|
else if (stepSize > 24576)
|
|
stepSize = 24576;
|
|
|
|
*dest = (int16_t)xn;
|
|
dest ++;
|
|
|
|
src += step;
|
|
step = step ^ 1;
|
|
shift = shift ^ 4;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static FORCE_INLINE uint32_t DeltaTReg2SampleRate(uint16_t DeltaN, uint32_t Clock)
|
|
{
|
|
return (uint32_t)(DeltaN * (Clock / 72.0) / 65536.0 + 0.5);
|
|
}
|
|
|
|
static int decode(const char* inPath, const char* outPath, uint32_t OutSmplRate)
|
|
{
|
|
FILE* hFile = fopen(inPath, "rb");
|
|
if (hFile == NULL)
|
|
{
|
|
printf("Error opening input file!\n");
|
|
return 2;
|
|
}
|
|
|
|
fseek(hFile, 0x00, SEEK_END);
|
|
unsigned int AdpcmSize = ftell(hFile);
|
|
|
|
fseek(hFile, 0x00, SEEK_SET);
|
|
uint8_t* AdpcmData = malloc(AdpcmSize);
|
|
fread(AdpcmData, 0x01, AdpcmSize, hFile);
|
|
fclose(hFile);
|
|
|
|
unsigned int WaveSize = AdpcmSize * 2; // 4-bit ADPCM -> 2 values per byte
|
|
int16_t* WaveData = malloc(WaveSize * 2);
|
|
printf("Decoding ...");
|
|
YM2610_ADPCM_Decode(AdpcmData, WaveData, WaveSize);
|
|
printf(" OK\n");
|
|
|
|
WAVE_FILE WaveFile;
|
|
WaveFile.RIFFfcc = FOURCC_RIFF;
|
|
WaveFile.WAVEfcc = FOURCC_WAVE;
|
|
WaveFile.fmt_fcc = FOURCC_fmt_;
|
|
WaveFile.fmt_Len = sizeof(WAVEFORMAT);
|
|
|
|
WAVEFORMAT* TempFmt = &WaveFile.fmt_Data;
|
|
TempFmt->wFormatTag = WAVE_FORMAT_PCM;
|
|
TempFmt->nChannels = 1;
|
|
TempFmt->wBitsPerSample = 16;
|
|
TempFmt->nSamplesPerSec = OutSmplRate ? OutSmplRate : 22050;
|
|
TempFmt->nBlockAlign = TempFmt->nChannels * TempFmt->wBitsPerSample / 8;
|
|
TempFmt->nAvgBytesPerSec = TempFmt->nBlockAlign * TempFmt->nSamplesPerSec;
|
|
|
|
WaveFile.datafcc = FOURCC_data;
|
|
WaveFile.dataLen = WaveSize * 2;
|
|
WaveFile.RIFFLen = 0x04 + 0x08 + WaveFile.fmt_Len + 0x08 + WaveFile.dataLen;
|
|
|
|
hFile = fopen(outPath, "wb");
|
|
if (hFile == NULL)
|
|
{
|
|
printf("Error opening output file!\n");
|
|
free(AdpcmData);
|
|
free(WaveData);
|
|
return 3;
|
|
}
|
|
|
|
fwrite(&WaveFile, sizeof(WAVE_FILE), 0x01, hFile);
|
|
fwrite(WaveData, 0x02, WaveSize, hFile);
|
|
fclose(hFile);
|
|
printf("File written.\n");
|
|
|
|
free(AdpcmData);
|
|
free(WaveData);
|
|
return 0;
|
|
}
|
|
|
|
static int encode(const char* inPath, const char* outPath)
|
|
{
|
|
FILE* hFile = fopen(inPath, "rb");
|
|
if (hFile == NULL)
|
|
{
|
|
printf("Error opening input file!\n");
|
|
return 2;
|
|
}
|
|
|
|
WAVE_FILE WaveFile;
|
|
fread(&WaveFile.RIFFfcc, 0x0C, 0x01, hFile);
|
|
if (WaveFile.RIFFfcc != FOURCC_RIFF || WaveFile.WAVEfcc != FOURCC_WAVE)
|
|
{
|
|
fclose(hFile);
|
|
printf("This is no wave file!\n");
|
|
return 4;
|
|
}
|
|
|
|
unsigned int TempLng = fread(&WaveFile.fmt_fcc, 0x04, 0x01, hFile);
|
|
fread(&WaveFile.fmt_Len, 0x04, 0x01, hFile);
|
|
while(WaveFile.fmt_fcc != FOURCC_fmt_)
|
|
{
|
|
if (!TempLng) // TempLng == 0 -> EOF reached
|
|
{
|
|
fclose(hFile);
|
|
printf("Error in wave file: Can't find format-tag!\n");
|
|
return 4;
|
|
}
|
|
fseek(hFile, WaveFile.fmt_Len, SEEK_CUR);
|
|
|
|
TempLng = fread(&WaveFile.fmt_fcc, 0x04, 0x01, hFile);
|
|
fread(&WaveFile.fmt_Len, 0x04, 0x01, hFile);
|
|
};
|
|
TempLng = ftell(hFile) + WaveFile.fmt_Len;
|
|
fread(&WaveFile.fmt_Data, sizeof(WAVEFORMAT), 0x01, hFile);
|
|
fseek(hFile, TempLng, SEEK_SET);
|
|
|
|
WAVEFORMAT* TempFmt = &WaveFile.fmt_Data;
|
|
if (TempFmt->wFormatTag != WAVE_FORMAT_PCM)
|
|
{
|
|
fclose(hFile);
|
|
printf("Error in wave file: Compressed wave file are not supported!\n");
|
|
return 4;
|
|
}
|
|
if (TempFmt->nChannels != 1)
|
|
{
|
|
fclose(hFile);
|
|
printf("Error in wave file: Unsupported number of channels (%hu)!\n", TempFmt->nChannels);
|
|
return 4;
|
|
}
|
|
if (TempFmt->wBitsPerSample != 16)
|
|
{
|
|
fclose(hFile);
|
|
printf("Error in wave file: Only 16-bit waves are supported! (File uses %hu bit)\n", TempFmt->wBitsPerSample);
|
|
return 4;
|
|
}
|
|
|
|
TempLng = fread(&WaveFile.datafcc, 0x04, 0x01, hFile);
|
|
fread(&WaveFile.dataLen, 0x04, 0x01, hFile);
|
|
while(WaveFile.datafcc != FOURCC_data)
|
|
{
|
|
if (!TempLng) // TempLng == 0 -> EOF reached
|
|
{
|
|
fclose(hFile);
|
|
printf("Error in wave file: Can't find data-tag!\n");
|
|
return 4;
|
|
}
|
|
fseek(hFile, WaveFile.dataLen, SEEK_CUR);
|
|
|
|
TempLng = fread(&WaveFile.datafcc, 0x04, 0x01, hFile);
|
|
fread(&WaveFile.dataLen, 0x04, 0x01, hFile);
|
|
};
|
|
unsigned int WaveSize = WaveFile.dataLen / 2;
|
|
int16_t* WaveData = malloc(WaveSize * 2);
|
|
fread(WaveData, 0x02, WaveSize, hFile);
|
|
|
|
fclose(hFile);
|
|
|
|
unsigned int AdpcmSize = WaveSize / 2;
|
|
uint8_t* AdpcmData = malloc(AdpcmSize);
|
|
printf("Encoding ...");
|
|
YM2610_ADPCM_Encode(WaveData, AdpcmData, WaveSize);
|
|
printf(" OK\n");
|
|
|
|
hFile = fopen(outPath, "wb");
|
|
if (hFile == NULL)
|
|
{
|
|
printf("Error opening output file!\n");
|
|
free(AdpcmData);
|
|
free(WaveData);
|
|
return 3;
|
|
}
|
|
|
|
fwrite(AdpcmData, 0x01, AdpcmSize, hFile);
|
|
fclose(hFile);
|
|
printf("File written.\n");
|
|
|
|
free(AdpcmData);
|
|
free(WaveData);
|
|
return 0;
|
|
}
|
|
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
unsigned int TempLng;
|
|
uint16_t DTRegs;
|
|
char* TempPnt;
|
|
|
|
printf("NeoGeo ADPCM-B En-/Decoder\n--------------------------\n");
|
|
if (argc < 4)
|
|
{
|
|
printf("Usage: ADPCM_Encode.exe -method [-option] InputFile OutputFile\n");
|
|
printf("-method - En-/Decoding Method:\n");
|
|
printf(" -d for decode (bin -> wav)\n");
|
|
printf(" -e for encode (wav -> bin)\n");
|
|
printf("-option - Options for Sample Rate of decoded Wave:\n");
|
|
printf(" -s:rate - Sample Rate in Hz (default: 22050)\n");
|
|
printf(" -r:regs[,clock] - DeltaT Register value (use 0x for hex) and chip clock\n");
|
|
printf(" (default chip clock: 4 MHz)\n");
|
|
printf("\n");
|
|
printf("Wave In-/Output is 16-bit, Mono\n");
|
|
return 1;
|
|
}
|
|
|
|
if (strcmp(argv[1], "-d") && strcmp(argv[1], "-e"))
|
|
{
|
|
printf("Wrong option! Use -d or -e!\n");
|
|
return 1;
|
|
}
|
|
|
|
int ErrVal = 0;
|
|
uint32_t OutSmplRate = 0;
|
|
|
|
int ArgBase = 2;
|
|
if (argv[2][0] == '-' && argv[2][2] == ':')
|
|
{
|
|
switch(argv[2][1])
|
|
{
|
|
case 's':
|
|
OutSmplRate = strtol(argv[2] + 3, NULL, 0);
|
|
break;
|
|
case 'r':
|
|
DTRegs = (uint16_t)strtoul(argv[2] + 3, &TempPnt, 0);
|
|
TempLng = 0;
|
|
if (*TempPnt == ',')
|
|
{
|
|
TempLng = strtoul(TempPnt + 1, NULL, 0);
|
|
}
|
|
if (!TempLng)
|
|
TempLng = 4000000;
|
|
OutSmplRate = DeltaTReg2SampleRate(DTRegs, TempLng);
|
|
break;
|
|
}
|
|
ArgBase++;
|
|
if (argc < ArgBase + 2)
|
|
{
|
|
printf("Not enought arguments!\n");
|
|
return 1;
|
|
}
|
|
}
|
|
|
|
switch(argv[1][1])
|
|
{
|
|
case 'd':
|
|
ErrVal = decode(argv[ArgBase + 0], argv[ArgBase + 1], OutSmplRate);
|
|
break;
|
|
case 'e':
|
|
ErrVal = encode(argv[ArgBase + 0], argv[ArgBase + 1]);
|
|
break;
|
|
}
|
|
|
|
return ErrVal;
|
|
}
|