Cool_Tools/vgmstream
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bnnm 2022-07-14 23:09:13 +02:00
parent 5c31c62ace
commit a0dff75ed5
1 changed files with 27 additions and 5 deletions
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32
src/meta/sgxd.c
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@ -73,7 +73,30 @@ VGMSTREAM* init_vgmstream_sgxd(STREAMFILE* sf) {
}
/* typical chunks: WAVE, RGND, NAME (strings for WAVE or RGND), SEQD (related to SFX), WSUR, WMKR, BUSS */
/* Format per chunk:
* - 0x00: id
* - 0x04: SGX: unknown; SGD/SGH: chunk length
* - 0x08: null
* - 0x0c: entries */
/* typical chunks (with some entry info):
* - WAVE: wave data (see below)
* - RGND: programs info, notably:
* - 0x18: min note range
* - 0x19: max note range
* - 0x1C: root note
* - 0x34: WAVE id
* > sample_rate = wave_sample_rate * (2 ^ (1/12)) ^ (target_note - root_note)
* - NAME: strings for other chunks
* - 0x00: sub-id?
* - 0x02: type? (possibly: 0000=bank, 0x2xxx=SEQD/WAVE, 0x3xxx=WSUR, 0x4xxx=BUSS, 0x6xxx=CONF)
* - 0x04: absolute offset
* - SEQD: related to SFX (sequences?), entries seem to be offsets to name offset + seq (ps1?) offset
* - WSUR: ?
* - WMKR: ?
* - CONF: ? (name offset + config offset)
* - BUSS: bus config?
/* WAVE chunk (size 0x10 + files * 0x38 + optional padding) */
if (is_sgx) { /* position after chunk+size */
if (!is_id32be(0x10,sf_head, "WAVE"))
@ -83,7 +106,6 @@ VGMSTREAM* init_vgmstream_sgxd(STREAMFILE* sf) {
if (!find_chunk_le(sf_head, get_id32be("WAVE"),0x10,0, &chunk_offset, NULL))
goto fail;
}
/* 0x04 SGX: unknown; SGD/SGH: chunk length, 0x08 null */
/* check multi-streams (usually only SE containers; Puppeteer) */
total_subsongs = read_s32le(chunk_offset+0x04,sf_head);
@ -95,18 +117,18 @@ VGMSTREAM* init_vgmstream_sgxd(STREAMFILE* sf) {
uint32_t stream_offset;
chunk_offset += 0x08 + 0x38 * (target_subsong-1); /* position in target header*/
/* 0x00 ? (00/01/02) */
/* 0x00: ? (00/01/02) */
if (!is_sgx) /* meaning unknown in .sgx; offset 0 = not a stream (a RGND sample) */
name_offset = read_u32le(chunk_offset+0x04,sf_head);
codec = read_u8(chunk_offset+0x08,sf_head);
channels = read_u8(chunk_offset+0x09,sf_head);
/* 0x0a null */
/* 0x0a: null */
sample_rate = read_s32le(chunk_offset+0x0c,sf_head);
/* 0x10: info_type, meaning of the next value
* (00=null, 30/40=data size without padding (ADPCM, ATRAC3plus), 80/A0=block size (AC3) */
/* 0x14: info_value (see above) */
/* 0x18: unknown (ex. 0x0008/0010/3307/CC02/etc)x2 */
/* 0x18: unknown (ex. 0x0008/0010/3307/CC02/etc, RGND related?) x2 */
/* 0x1c: null */
num_samples = read_s32le(chunk_offset+0x20,sf_head);