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vgmstream/src/meta/musx.c

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#include "meta.h"
#include "../coding/coding.h"
#include "../util/endianness.h"
typedef enum { MFX, MFX_BANK, SFX_BANK, SBNK, FORM } musx_form;
typedef enum { PSX, DSP, XBOX, IMA, DAT, NGCA, PCM } musx_codec;
typedef struct {
int big_endian;
int version;
size_t file_size;
int total_subsongs;
int is_old;
off_t tables_offset;
off_t loops_offset;
off_t stream_offset;
size_t stream_size;
off_t coefs_offset;
musx_form form;
musx_codec codec;
uint32_t platform;
int channels;
int sample_rate;
int loop_flag;
int32_t loop_start;
int32_t loop_end;
int32_t num_samples;
int32_t loop_start_sample;
int32_t loop_end_sample;
} musx_header;
static int parse_musx(STREAMFILE* sf, musx_header* musx);
/* MUSX - from Eurocom's games */
VGMSTREAM* init_vgmstream_musx(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
off_t start_offset;
musx_header musx = {0};
/* checks */
/* .sfx: actual extension (extracted from bigfiles with sometimes encrypted names)
* .musx: header id */
if (!check_extensions(sf, "sfx,musx"))
goto fail;
if (!is_id32be(0x00,sf, "MUSX"))
goto fail;
if (!parse_musx(sf, &musx))
goto fail;
start_offset = musx.stream_offset;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(musx.channels, musx.loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_MUSX;
vgmstream->sample_rate = musx.sample_rate;
vgmstream->num_streams = musx.total_subsongs;
vgmstream->stream_size = musx.stream_size;
switch (musx.codec) {
case PSX:
vgmstream->num_samples = ps_bytes_to_samples(musx.stream_size, musx.channels);
vgmstream->loop_start_sample = ps_bytes_to_samples(musx.loop_start, musx.channels);
vgmstream->loop_end_sample = ps_bytes_to_samples(musx.loop_end, musx.channels);
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x80;
break;
case DAT:
vgmstream->num_samples = dat4_ima_bytes_to_samples(musx.stream_size, musx.channels);
vgmstream->loop_start_sample = dat4_ima_bytes_to_samples(musx.loop_start, musx.channels);
vgmstream->loop_end_sample = dat4_ima_bytes_to_samples(musx.loop_end, musx.channels);
vgmstream->coding_type = coding_DAT4_IMA;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x20;
break;
case IMA:
vgmstream->num_samples = ima_bytes_to_samples(musx.stream_size, musx.channels);
vgmstream->loop_start_sample = musx.loop_start / 4; /* weird but needed */
vgmstream->loop_end_sample = musx.loop_end / 4;
vgmstream->coding_type = coding_DVI_IMA_int;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x01;
break;
case XBOX:
vgmstream->num_samples = xbox_ima_bytes_to_samples(musx.stream_size, musx.channels);
vgmstream->loop_start_sample = xbox_ima_bytes_to_samples(musx.loop_start, musx.channels);
vgmstream->loop_end_sample = xbox_ima_bytes_to_samples(musx.loop_end, musx.channels);
vgmstream->coding_type = coding_XBOX_IMA;
vgmstream->layout_type = layout_none;
break;
case DSP:
vgmstream->num_samples = dsp_bytes_to_samples(musx.stream_size, musx.channels);
vgmstream->loop_start_sample = dsp_bytes_to_samples(musx.loop_start, musx.channels);
vgmstream->loop_end_sample = dsp_bytes_to_samples(musx.loop_end, musx.channels);
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x08;
dsp_read_coefs(vgmstream,sf,musx.coefs_offset+0x1c, 0x60, musx.big_endian);
dsp_read_hist(vgmstream,sf,musx.coefs_offset+0x40, 0x60, musx.big_endian);
break;
case PCM:
//vgmstream->num_samples = pcm_bytes_to_samples(musx.stream_size, musx.channels, 16);
//vgmstream->loop_start_sample = pcm_bytes_to_samples(musx.loop_start, musx.channels, 16);
//vgmstream->loop_end_sample = pcm_bytes_to_samples(musx.loop_end, musx.channels, 16);
vgmstream->coding_type = musx.big_endian ? coding_PCM16BE : coding_PCM16LE; /* only seen on PC but just in case */
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x02;
break;
case NGCA:
if (!is_id32be(start_offset,sf, "NGCA"))
goto fail;
/* 0x04: size (stereo full-interleaves 2 NGCA headers but sizes count all) */
/* 0x08: channels */
/* 0x0c: coefs */
musx.coefs_offset = start_offset;
start_offset += 0x40;
//musx.stream_size -= 0x40 * musx.channels; /* needed for interleave */
//vgmstream->num_samples = dsp_bytes_to_samples(musx.stream_size - 0x40 * musx.channels, musx.channels);
//vgmstream->loop_start_sample = dsp_bytes_to_samples(musx.loop_start + 0x40, musx.channels);
//vgmstream->loop_end_sample = dsp_bytes_to_samples(musx.loop_end - 0x40 * musx.channels, musx.channels);
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = musx.stream_size / musx.channels;
dsp_read_coefs(vgmstream, sf, musx.coefs_offset+0x0c, vgmstream->interleave_block_size, musx.big_endian);
//dsp_read_hist(vgmstream, sf, musx.coefs_offset+0x30, 0x00, musx.big_endian); /* used? */
break;
default:
goto fail;
}
if (musx.num_samples)
vgmstream->num_samples = musx.num_samples;
if (musx.loop_flag && musx.loop_start_sample)
vgmstream->loop_start_sample = musx.loop_start_sample;
if (musx.loop_flag && musx.loop_end_sample)
vgmstream->loop_end_sample = musx.loop_end_sample;
if (!vgmstream_open_stream(vgmstream,sf,start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}
static int parse_musx_stream(STREAMFILE* sf, musx_header* musx) {
uint32_t (*read_u32)(off_t,STREAMFILE*) = NULL;
int default_channels, default_sample_rate;
if (musx->big_endian) {
read_u32 = read_u32be;
} else {
read_u32 = read_u32le;
}
/* autodetect for older versions that have no info */
if (musx->platform == 0) {
if (musx->big_endian) {
musx->platform = get_id32be("GC02"); /* (fake) */
}
else {
int channels = musx->channels;
off_t offset = musx->stream_offset;
size_t max = 0x5000;
if (max > musx->stream_size)
max = musx->stream_size;
if (!channels)
channels = 2;
/* since engine seems to hardcode codecs no apparent way to detect in some cases
* [Sphinx and the Cursed Mummy (multi), Buffy the Vampire Slayer: Chaos Bleeds (multi)] */
if (ps_check_format(sf, offset, max)) {
musx->platform = get_id32be("PS2_");
} else if (xbox_check_format(sf, offset, max, channels)) {
musx->platform = get_id32be("XB02"); /* (fake) */
}
else {
musx->platform = get_id32be("PC02"); /* (fake) */
}
}
}
/* defaults */
switch(musx->platform) {
case 0x5053325F: /* "PS2_" */
default_channels = 2;
default_sample_rate = 32000;
musx->codec = PSX;
break;
case 0x47435F5F: /* "GC__" */
default_channels = 2;
default_sample_rate = 32000;
musx->codec = DAT;
break;
case 0x47433032: /* "GC02" */
default_channels = 2;
default_sample_rate = 32000;
if (musx->coefs_offset)
musx->codec = DSP;
else
musx->codec = IMA;
break;
case 0x58425F5F: /* "XB__" */
case 0x5842315F: /* "XB1_" */
default_channels = 2;
default_sample_rate = 44100;
musx->codec = DAT;
break;
case 0x58423032: /* "XB02" */
default_channels = 2;
default_sample_rate = 44100;
musx->codec = XBOX;
break;
case 0x5053505F: /* "PSP_" */
default_channels = 2;
default_sample_rate = 32768;
musx->codec = PSX;
break;
case 0x5749495F: /* "WII_" */
default_channels = 2;
default_sample_rate = 32000;
musx->codec = DAT;
break;
case 0x5053335F: /* "PS3_" */
default_channels = 2;
default_sample_rate = 44100;
musx->codec = DAT;
break;
case 0x58455F5F: /* "XE__" */
default_channels = 2;
default_sample_rate = 32000;
musx->codec = DAT;
break;
case 0x50435F5F: /* "PC__" */
default_channels = 2;
default_sample_rate = 44100;
musx->codec = DAT;
break;
case 0x50433032: /* "PC02" */
default_channels = 2;
default_sample_rate = 32000;
musx->codec = IMA;
break;
default:
VGM_LOG("MUSX: unknown platform %x\n", musx->platform);
goto fail;
}
if (musx->channels == 0)
musx->channels = default_channels;
if (musx->sample_rate == 0)
musx->sample_rate = default_sample_rate;
/* parse loops and other info */
if (musx->tables_offset && musx->loops_offset) {
int i, cues2_count;
off_t cues2_offset;
/* cue/stream position table thing */
/* 0x00: cues1 entries (entry size 0x34 or 0x18)
* 0x04: cues2 entries (entry size 0x20 or 0x14)
* 0x08: header size (always 0x14)
* 0x0c: cues2 start
* 0x10: volume? (usually <= 100) */
/* find loops (cues1 also seems to have this info but this looks ok) */
cues2_count = read_u32(musx->loops_offset+0x04, sf);
cues2_offset = musx->loops_offset + read_u32(musx->loops_offset+0x0c, sf);
for (i = 0; i < cues2_count; i++) {
uint32_t type, offset1, offset2;
if (musx->is_old) {
offset1 = read_u32(cues2_offset + i*0x20 + 0x04, sf);
type = read_u32(cues2_offset + i*0x20 + 0x08, sf);
offset2 = read_u32(cues2_offset + i*0x20 + 0x14, sf);
} else {
offset1 = read_u32(cues2_offset + i*0x14 + 0x04, sf);
type = read_u32(cues2_offset + i*0x14 + 0x08, sf);
offset2 = read_u32(cues2_offset + i*0x14 + 0x0c, sf);
}
/* other types (0x0a, 0x09) look like section/end markers, 0x06/07 only seems to exist once */
if (type == 0x06 || type == 0x07) { /* loop / goto */
musx->loop_start = offset2;
musx->loop_end = offset1;
musx->loop_flag = 1;
break;
}
}
}
else if (musx->loops_offset && read_u32be(musx->loops_offset, sf) != 0xABABABAB) {
/* parse loop table (loop starts are -1 if non-looping)
* 0x00: version?
* 0x04: flags? (&1=loops)
* 0x08: loop start offset?
* 0x0c: loop end offset?
* 0x10: loop end sample
* 0x14: loop start sample
* 0x18: loop end offset
* 0x1c: loop start offset */
musx->loop_end_sample = read_s32le(musx->loops_offset+0x10, sf);
musx->loop_start_sample = read_s32le(musx->loops_offset+0x14, sf);
musx->loop_end = read_s32le(musx->loops_offset+0x18, sf);
musx->loop_start = read_s32le(musx->loops_offset+0x1c, sf);
musx->num_samples = musx->loop_end_sample; /* preferable even if not looping as some files have padding */
musx->loop_flag = (musx->loop_start_sample >= 0);
}
/* fix some v10 platform (like PSP) sizes */
if (musx->stream_size == 0) {
musx->stream_size = musx->file_size - musx->stream_offset;
/* always padded to nearest 0x800 sector */
if (musx->stream_size > 0x800) {
uint8_t buf[0x800];
int pos;
off_t offset = musx->stream_offset + musx->stream_size - 0x800;
if (read_streamfile(buf, offset, sizeof(buf), sf) != 0x800)
goto fail;
pos = 0x800 - 0x04;
while (pos > 0) {
if (get_u32be(buf + pos) != 0xABABABAB)
break;
musx->stream_size -= 0x04;
pos -= 0x04;
}
}
}
return 1;
fail:
return 0;
}
//TODO: check possible info here:
// https://sphinxandthecursedmummy.fandom.com/wiki/SFX
static int parse_musx(STREAMFILE* sf, musx_header* musx) {
int32_t (*read_s32)(off_t,STREAMFILE*) = NULL;
uint32_t (*read_u32)(off_t,STREAMFILE*) = NULL;
uint16_t (*read_u16)(off_t,STREAMFILE*) = NULL;
int target_subsong = sf->stream_index;
/* base header is LE */
/* 0x04: file ID (referenced in external .h, sometimes files are named [prefix](id)[suffix].sfx too) */
musx->version = read_u32le(0x08,sf);
musx->file_size = read_u32le(0x0c,sf);
switch(musx->version) {
case 201: /* Sphinx and the Cursed Mummy (PS2), Buffy the Vampire Slayer: Chaos Bleeds (PS2/GC/Xbox) */
case 1: /* Athens 2004 (PS2) */
musx->platform = 0; /* guess later */
musx->tables_offset = 0x10;
musx->big_endian = guess_endian32(0x10, sf);
musx->is_old = 1;
break;
case 4: /* Spyro: A Hero's Tail (PS2/Xbox/GC), Athens 2004 (PC) */
case 5: /* Predator: Concrete Jungle (PS2/Xbox), Robots (GC) */
case 6: /* Batman Begins (GC), Ice Age 2 (PS2/PC) */
musx->platform = read_u32be(0x10,sf);
/* 0x14: some id/hash? */
/* 0x18: platform number? */
/* 0x1c: null */
musx->tables_offset = 0x20;
musx->big_endian = (musx->platform == get_id32be("GC__"));
break;
case 10: /* 007: Quantum of Solace (PS2), Pirates of the Caribbean: At World's End (PSP), GoldenEye 007 (Wii), Rio (PS3) */
musx->platform = read_u32be(0x10,sf);
/* 0x14: null */
/* 0x18: platform number? */
/* 0x1c: null */
/* 0x20: hash */
musx->tables_offset = 0; /* no tables */
musx->big_endian = (
musx->platform == get_id32be("GC__") ||
musx->platform == get_id32be("XE__") ||
musx->platform == get_id32be("PS3_") ||
musx->platform == get_id32be("WII_")
);
break;
default:
VGM_LOG("MUSX: unknown version\n");
goto fail;
}
if (musx->big_endian) {
read_s32 = read_s32be;
read_u32 = read_u32be;
read_u16 = read_u16be;
} else {
read_s32 = read_s32le;
read_u32 = read_u32le;
read_u16 = read_u16le;
}
/* MUSX has multiple forms which seem external/implicit info so we need some crude autodetection */
if (musx->tables_offset) {
off_t table1_offset, table2_offset /*, table3_offset, table4_offset*/;
size_t /*table1_size, table2_size, table3_size,*/ table4_size;
table1_offset = read_u32(musx->tables_offset+0x00, sf);
//table1_size = read_u32(musx->tables_offset+0x04, sf);
table2_offset = read_u32(musx->tables_offset+0x08, sf);
//table2_size = read_u32(musx->tables_offset+0x0c, sf);
//table3_offset = read_u32(musx->tables_offset+0x10, sf);
//table3_size = read_u32(musx->tables_offset+0x14, sf);
//table4_offset = read_u32(musx->tables_offset+0x18, sf);
table4_size = read_u32(musx->tables_offset+0x1c, sf);
if (table2_offset == 0 || table2_offset == 0xABABABAB) {
/* possibly a collection of IDs */
VGM_LOG("MUSX: unsupported ID type\n");
goto fail;
}
else if (table4_size != 0 && table4_size != 0xABABABAB) {
/* sfx banks have table1=id table? table2=header table, table=DSP coefs table (optional), table4=data */
musx->form = SFX_BANK;
}
else if (read_u32(table1_offset+0x00, sf) < 0x9 &&
read_u32(table1_offset+0x08, sf) == 0x14 &&
read_u32(table1_offset+0x10, sf) <= 100) {
/* streams have a info table with a certain format */
musx->form = MFX;
}
else if (read_u32(table1_offset+0x00, sf) == 0 &&
read_u32(table1_offset+0x04, sf) > read_u32(table1_offset+0x00, sf) &&
read_u32(table1_offset+0x08, sf) > read_u32(table1_offset+0x04, sf)) {
/* a list of offsets starting from 0, each stream then has info table at offset */
musx->form = MFX_BANK;
}
else {
VGM_LOG("MUSX: unsupported unknown type\n");
goto fail;
}
}
else {
if (is_id32be(0x800,sf, "SBNK")) {
/* SFX_BANK-like sound bank found on v10 Wii/PC games [Dead Space Extraction (Wii), G-Force (PC)] */
musx->form = SBNK;
}
else if (is_id32be(0x800,sf, "FORM")) {
/* RIFF-like sound bank found on v10 PSP games */
musx->form = FORM;
}
else if (is_id32be(0x800,sf, "ESPD")) {
/* projectdetails.sfx */
goto fail;
}
else {
/* simplest music type*/
musx->form = MFX;
}
}
/* parse known forms */
switch(musx->form) {
case MFX:
if (musx->tables_offset) {
musx->loops_offset = read_u32(musx->tables_offset+0x00, sf);
musx->stream_offset = read_u32(musx->tables_offset+0x08, sf);
musx->stream_size = read_u32(musx->tables_offset+0x0c, sf);
}
else {
if (read_u32be(0x30, sf) != 0xABABABAB) {
uint32_t miniheader = read_u32be(0x40, sf);
switch(miniheader) {
case 0x44415434: /* "DAT4" */
case 0x44415435: /* "DAT5" */
case 0x44415438: /* "DAT8" */
case 0x44415439: /* "DAT9" [Disney Infinity (X360)] */
/* found on PS3/Wii/X360 (but not always?) */
musx->stream_size = read_u32le(0x44, sf);
musx->channels = read_u32le(0x48, sf);
musx->sample_rate = read_u32le(0x4c, sf);
musx->loops_offset = 0x50;
break;
default:
if (read_u32be(0x30, sf) == 0x00 &&
read_u32be(0x34, sf) == 0x00) {
/* no subheader [Spider-Man 4 (Wii)] */
musx->loops_offset = 0x00;
} else {
/* loop info only [G-Force (PS3)] */
musx->loops_offset = 0x30;
}
break;
}
}
musx->stream_offset = 0x800;
musx->stream_size = 0; /* read later */
}
if (!parse_musx_stream(sf, musx))
goto fail;
break;
case MFX_BANK: {
off_t target_offset, base_offset, data_offset;
musx->total_subsongs = read_u32(musx->tables_offset+0x04, sf) / 0x04; /* size */
if (target_subsong == 0) target_subsong = 1;
if (target_subsong > musx->total_subsongs || musx->total_subsongs <= 0) goto fail;
base_offset = read_u32(musx->tables_offset+0x00, sf);
data_offset = read_u32(musx->tables_offset+0x08, sf);
target_offset = read_u32(base_offset + (target_subsong - 1)*0x04, sf) + data_offset;
/* 0x00: id? */
musx->stream_offset = read_u32(target_offset + 0x04, sf) + data_offset;
musx->stream_size = read_u32(target_offset + 0x08, sf);
musx->loops_offset = target_offset + 0x0c;
/* this looks correct for PS2 and Xbox, not sure about GC */
musx->channels = 1;
musx->sample_rate = 22050;
if (!parse_musx_stream(sf, musx))
goto fail;
break;
}
case SFX_BANK: {
off_t target_offset, head_offset, coef_offset, data_offset;
size_t coef_size;
//unk_offset = read_u32(musx->tables_offset+0x00, sf); /* ids and cue-like config? */
head_offset = read_u32(musx->tables_offset+0x08, sf);
coef_offset = read_u32(musx->tables_offset+0x10, sf);
coef_size = read_u32(musx->tables_offset+0x14, sf);
data_offset = read_u32(musx->tables_offset+0x18, sf);
musx->total_subsongs = read_u32(head_offset+0x00, sf);
if (target_subsong == 0) target_subsong = 1;
if (target_subsong > musx->total_subsongs || musx->total_subsongs <= 0) goto fail;
if (musx->is_old) {
target_offset = head_offset + 0x04 + (target_subsong - 1)*0x28;
/* 0x00: flag? */
musx->stream_offset = read_u32(target_offset + 0x04, sf) + data_offset;
musx->stream_size = read_u32(target_offset + 0x08, sf);
musx->sample_rate = read_u32(target_offset + 0x0c, sf);
/* 0x10: size? */
/* 0x14: channels? */
/* 0x18: always 4? */
musx->coefs_offset = read_u32(target_offset + 0x1c, sf) + coef_offset; /* may be set even for non-GC */
/* 0x20: null? */
/* 0x24: sub-id? */
musx->channels = 1;
}
else {
target_offset = head_offset + 0x04 + (target_subsong - 1)*0x20;
/* 0x00: flag? */
musx->stream_offset = read_u32(target_offset + 0x04, sf) + data_offset;
musx->stream_size = read_u32(target_offset + 0x08, sf);
musx->sample_rate = read_u32(target_offset + 0x0c, sf);
/* 0x10: size? */
musx->coefs_offset = read_u32(target_offset + 0x14, sf) + coef_offset; /* may be set even for non-GC */
/* 0x18: null? */
/* 0x1c: sub-id? */
musx->channels = 1;
}
if (coef_size == 0)
musx->coefs_offset = 0; /* disable for later detection */
if (!parse_musx_stream(sf, musx))
goto fail;
break;
}
case SBNK: {
off_t target_offset, head_offset, data_offset;
uint8_t codec = 0;
uint32_t version;
if (!is_id32be(0x800 + 0x00, sf, "SBNK"))
goto fail;
version = read_u32(0x800 + 0x04, sf);
if (version == 0x2A) {
/* - Goldeneye 007 (X360) */
/* 0x08: "COM " */
/* 0x0c: file ID (same as base file) */
/* 0x10: some ID? */
musx->tables_offset = 0x814;
}
else {
/* - v0x12 (all others) */
/* 0x08: file ID (same as base file) */
/* 0x0c: some ID? */
musx->tables_offset = 0x810;
}
/* 0x00: table1 count */
/* 0x04: table1 offset (from here) */
/* 0x08: table2 count */
/* 0x0c: table2 offset (from here) */
/* 0x10: table3 count */
/* 0x14: table3 offset (from here) */
/* 0x18: table4 count */
/* 0x1c: table4 offset (from here) */
/* 0x20: table5 count (waves) */
/* 0x24: table5 offset (from here) */
/* 0x28: table6 count */
/* 0x2c: table6 offset (from here) */
/* 0x30: table7 count */
/* 0x34: table7 offset (from here) */
/* 0x38: data size */
/* 0x3c: data offset (absolute in older versions) */
musx->total_subsongs = read_u32(musx->tables_offset+0x20, sf);
if (target_subsong == 0) target_subsong = 1;
if (target_subsong > musx->total_subsongs || musx->total_subsongs <= 0) goto fail;
if (version == 0x2A) {
;VGM_LOG("MUSX: unknown version format\n");
goto fail;
/* subheader is 0x10 but variable?, offset table may be table 7?
- 0x00: ID?
- 0x04: samples?
- 0x08: sample rate
- 0x0a: codec?
- 0x0b: channels
- 0x0c: size?
*/
}
else {
head_offset = read_u32(musx->tables_offset+0x24, sf) + musx->tables_offset + 0x24;
data_offset = read_u32(musx->tables_offset+0x3c, sf);
target_offset = head_offset + (target_subsong - 1) * 0x1c;
//;VGM_LOG("MUSX: ho=%lx, do=%lx, to=%lx\n", head_offset, data_offset, target_offset);
/* 0x00: subfile ID */
musx->num_samples = read_s32(target_offset + 0x04, sf);
musx->loop_start_sample = read_s32(target_offset + 0x08, sf); /* -1 if no loop */
musx->sample_rate = read_u16(target_offset + 0x0c, sf);
codec = read_u8 (target_offset + 0x0e, sf);
musx->channels = read_u8 (target_offset + 0x0f, sf);
musx->stream_offset = read_u32(target_offset + 0x10, sf) + data_offset;
musx->stream_size = read_u32(target_offset + 0x14, sf);
musx->loop_start = read_s32(target_offset + 0x18, sf);
}
musx->loop_end_sample = musx->num_samples;
musx->loop_flag = (musx->loop_start_sample >= 0);
switch(codec) {
case 0x11: musx->codec = DAT; break;
case 0x13: musx->codec = NGCA; break;
case 0x14: musx->codec = PCM; break;
default:
VGM_LOG("MUSX: unknown SBNK codec %x\n", codec);
goto fail;
}
break;
}
default:
VGM_LOG("MUSX: unsupported form\n");
goto fail;
}
return 1;
fail:
return 0;
}
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