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neotools: neoadpcmextract now converts ADPCM-B to Wave

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a dinosaur
2023-12-29 04:04:28 +11:00
parent 5b28c18472
commit 47f6b23943
4 changed files with 133 additions and 101 deletions
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40
neotools/neoadpcmextract.c
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@@ -2,6 +2,7 @@
#include "neoadpcmextract.h"
#include "adpcm.h"
#include "adpcmb.h"
#include "wave.h"
#include "endian.h"
#include "util.h"
@@ -71,7 +72,6 @@ int writeAdpcmA(int id, const Buffer* enc, Buffer* pcm)
{
char name[32];
snprintf(name, sizeof(name), "smpa_%02x.wav", id);
fprintf(stderr, "write \"%s\"\n", name);
FILE* fout = fopen(name, "wb");
if (!fout)
return 1;
@@ -93,7 +93,7 @@ int writeAdpcmA(int id, const Buffer* enc, Buffer* pcm)
size_t decoded = 0;
do
{
size_t blockSize = MIN(enc->size - decoded, DECODE_BUFFER_SIZE);
const size_t blockSize = MIN(enc->size - decoded, DECODE_BUFFER_SIZE);
adpcmADecode(&decoder, &((const char*)enc->data)[decoded], (short*)pcm->data, blockSize);
fwrite(pcm->data, sizeof(short), blockSize * 2, fout);
decoded += DECODE_BUFFER_SIZE;
@@ -101,22 +101,44 @@ int writeAdpcmA(int id, const Buffer* enc, Buffer* pcm)
while (decoded < enc->size);
fclose(fout);
fprintf(stderr, "Wrote \"%s\"\n", name);
return 0;
}
int writeAdpcmB(int id, const Buffer* enc)
int writeAdpcmB(int id, const Buffer* enc, Buffer* pcm)
{
char name[32];
snprintf(name, sizeof(name), "smpb_%02x.pcm", id);
printf("./adpcmb -d \"%s\" \"$WAVDIR/%s.wav\"\n", name, name);
// Write ADPCM sample
snprintf(name, sizeof(name), "smpb_%02x.wav", id);
FILE* fout = fopen(name, "wb");
if (!fout)
return 1;
fwrite(enc->data, sizeof(uint8_t), enc->size, fout);
// Write wave header
const uint32_t decodedSize = enc->size * 2 * sizeof(short);
waveWrite(&(const WaveSpec)
{
.format = WAVE_FMT_PCM,
.channels = 1,
.rate = 22050,
.bytedepth = 2
},
NULL, decodedSize, &waveStreamDefaultCb, fout);
bufferResize(pcm, DECODE_BUFFER_SIZE * 2 * sizeof(short));
AdpcmBDecoderState decoder;
adpcmBDecoderInit(&decoder);
size_t decoded = 0;
do
{
const size_t blockSize = MIN(enc->size - decoded, DECODE_BUFFER_SIZE);
adpcmBDecode(&decoder, &((const uint8_t*)enc->data)[decoded], (int16_t*)pcm->data, blockSize);
fwrite(pcm->data, sizeof(int16_t), blockSize * 2, fout);
decoded += DECODE_BUFFER_SIZE;
}
while (decoded < enc->size);
fclose(fout);
fprintf(stderr, "Wrote \"%s\"\n", name);
return 0;
}
@@ -153,7 +175,7 @@ int main(int argc, char** argv)
if (scanType == 'A')
writeAdpcmA(smpaCount++, &rawbuf, &decbuf);
else if (scanType == 'B')
writeAdpcmB(smpbCount++, &rawbuf);
writeAdpcmB(smpbCount++, &rawbuf, &decbuf);
}
free(rawbuf.data);