vgmstream/src/meta/psb.c

863 lines
28 KiB
C

#include "meta.h"
#include "../coding/coding.h"
#include "../util/m2_psb.h"
#include "../layout/layout.h"
#define PSB_MAX_LAYERS 6 /* MGS Master Collection Vo.1 (Switch) */
typedef enum { PCM, RIFF_AT3, XMA2, MSADPCM, XWMA, DSP, OPUSNX, RIFF_AT9, VAG, OGG_VORBIS, RIFF_WAV } psb_codec_t;
typedef struct {
const char* id; /* format */
const char* spec; /* platform */
const char* ext; /* codec extension (not always) */
const char* voice; /* base name (mandatory) */
const char* file; /* original name, often but not always same as voice (optional?) */
const char* uniq; /* unique name, typically same as file without extension (optional) */
const char* wav; /* same as file (optional) */
} psb_temp_t;
typedef struct {
psb_temp_t* tmp;
psb_codec_t codec;
char readable_name[STREAM_NAME_SIZE];
int total_subsongs;
int target_subsong;
/* chunks references */
uint32_t stream_offset[PSB_MAX_LAYERS];
uint32_t stream_size[PSB_MAX_LAYERS];
uint32_t body_offset;
uint32_t body_size;
uint32_t intro_offset;
uint32_t intro_size;
uint32_t fmt_offset;
uint32_t fmt_size;
uint32_t dpds_offset;
uint32_t dpds_size;
int layers;
int channels;
int format;
int sample_rate;
int block_size;
int avg_bitrate;
int bps;
int32_t num_samples;
int32_t body_samples;
int32_t intro_samples;
int32_t skip_samples;
int loop_flag;
int loop_range;
int32_t loop_start;
int32_t loop_end;
int loop_test;
} psb_header_t;
static int parse_psb(STREAMFILE* sf, psb_header_t* psb);
static segmented_layout_data* build_segmented_psb_opus(STREAMFILE* sf, psb_header_t* psb);
static layered_layout_data* build_layered_psb(STREAMFILE* sf, psb_header_t* psb);
/* PSB - M2 container [Sega Vintage Collection (multi), Legend of Mana (multi)] */
VGMSTREAM* init_vgmstream_psb(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
psb_header_t psb = {0};
/* checks */
if (!is_id32be(0x00,sf, "PSB\0"))
goto fail;
if (!check_extensions(sf, "psb"))
goto fail;
if (!parse_psb(sf, &psb))
goto fail;
/* handle subfiles */
{
const char* ext = NULL;
VGMSTREAM* (*init_vgmstream)(STREAMFILE* sf) = NULL;
switch(psb.codec) {
case RIFF_AT3: /* Sega Vintage Collection (PS3) */
ext = "at3";
init_vgmstream = init_vgmstream_riff;
break;
case VAG: /* Plastic Memories (Vita), Judgment (PS4) */
ext = "vag";
init_vgmstream = init_vgmstream_vag;
break;
case RIFF_AT9: /* Plastic Memories (Vita) */
ext = "at9";
init_vgmstream = init_vgmstream_riff;
break;
case RIFF_WAV: /* Legend of Mana (Android) */
ext = "wav";
init_vgmstream = init_vgmstream_riff;
break;
case OGG_VORBIS: /* Legend of Mana (Android) */
ext = "ogg";
init_vgmstream = init_vgmstream_ogg_vorbis;
break;
default:
break;
}
if (init_vgmstream != NULL) {
STREAMFILE* temp_sf = setup_subfile_streamfile(sf, psb.stream_offset[0], psb.stream_size[0], ext);
if (!temp_sf) goto fail;
vgmstream = init_vgmstream(temp_sf);
close_streamfile(temp_sf);
if (!vgmstream) goto fail;
if (psb.codec == OGG_VORBIS || psb.codec == RIFF_WAV) {
vgmstream_force_loop(vgmstream, psb.loop_flag, psb.loop_start, psb.loop_start + psb.loop_end);
if (vgmstream->loop_end_sample < vgmstream->num_samples)
vgmstream->loop_end_sample += 1;
}
vgmstream->num_streams = psb.total_subsongs;
strncpy(vgmstream->stream_name, psb.readable_name, STREAM_NAME_SIZE);
return vgmstream;
}
}
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(psb.channels, psb.loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_PSB;
vgmstream->sample_rate = psb.sample_rate;
vgmstream->num_samples = psb.num_samples;
vgmstream->loop_start_sample = psb.loop_start;
vgmstream->loop_end_sample = psb.loop_end;
vgmstream->num_streams = psb.total_subsongs;
vgmstream->stream_size = psb.stream_size[0];
switch(psb.codec) {
case PCM:
if (psb.layers > 1) {
/* somehow R offset can go before L, use layered */
vgmstream->layout_data = build_layered_psb(sf, &psb);
if (!vgmstream->layout_data) goto fail;
vgmstream->layout_type = layout_layered;
if (!vgmstream->num_samples)
vgmstream->num_samples = pcm_bytes_to_samples(psb.stream_size[0], 1, psb.bps);
}
else {
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = psb.block_size / psb.channels;
if (!vgmstream->num_samples)
vgmstream->num_samples = pcm_bytes_to_samples(psb.stream_size[0], psb.channels, psb.bps);
}
switch(psb.bps) {
case 16: vgmstream->coding_type = coding_PCM16LE; break; /* Legend of Mana (PC), Namco Museum Archives Vol.1 (PC) */
case 24: vgmstream->coding_type = coding_PCM24LE; break; /* Legend of Mana (PC) */
default: goto fail;
}
break;
case MSADPCM: /* [Senxin Aleste (AC)] */
vgmstream->coding_type = coding_MSADPCM;
vgmstream->layout_type = layout_none;
vgmstream->frame_size = psb.block_size;
if (!vgmstream->num_samples)
vgmstream->num_samples = msadpcm_bytes_to_samples(psb.stream_size[0], psb.block_size, psb.channels);
break;
#ifdef VGM_USE_FFMPEG
case XWMA: { /* Senxin Aleste (AC) */
vgmstream->codec_data = init_ffmpeg_xwma(sf, psb.stream_offset[0], psb.stream_size[0], psb.format, psb.channels, psb.sample_rate, psb.avg_bitrate, psb.block_size);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
if (!vgmstream->num_samples) {
vgmstream->num_samples = xwma_dpds_get_samples(sf, psb.dpds_offset, psb.dpds_size, psb.channels, 0);
}
break;
}
case XMA2: { /* Sega Vintage Collection (X360) */
vgmstream->codec_data = init_ffmpeg_xma_chunk(sf, psb.stream_offset[0], psb.stream_size[0], psb.fmt_offset, psb.fmt_size);
if (!vgmstream->codec_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_none;
xma_fix_raw_samples(vgmstream, sf, psb.stream_offset[0], psb.stream_size[0], psb.fmt_offset, 1,1);
break;
}
case OPUSNX: { /* Legend of Mana (Switch) */
vgmstream->layout_data = build_segmented_psb_opus(sf, &psb);
if (!vgmstream->layout_data) goto fail;
vgmstream->coding_type = coding_FFmpeg;
vgmstream->layout_type = layout_segmented;
break;
}
#endif
case DSP: /* Legend of Mana (Switch) */
/* standard DSP resources */
if (psb.layers > 1) {
/* somehow R offset can go before L, use layered */
vgmstream->layout_data = build_layered_psb(sf, &psb);
if (!vgmstream->layout_data) goto fail;
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_layered;
}
else {
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->layout_type = layout_none;
dsp_read_coefs_le(vgmstream,sf, psb.stream_offset[0] + 0x1c, 0);
dsp_read_hist_le(vgmstream,sf, psb.stream_offset[0] + 0x1c + 0x20, 0);
}
vgmstream->num_samples = read_u32le(psb.stream_offset[0] + 0x00, sf);
break;
default:
goto fail;
}
/* loop meaning varies, no apparent flags, seen in PCM/DSP/MSADPCM/WMAv2:
* - loop_start + loop_length [LoM (PC/And), Namco Museum V1 (PC), Senxin Aleste (PC)]
* - loop_start + loop_end [G-Darius (Sw)]
* (only in some cases of "loop" field so shouldn't happen to often) */
if (psb.loop_test) {
if (psb.loop_start + psb.loop_end <= vgmstream->num_samples) {
vgmstream->loop_end_sample += psb.loop_start;
/* assumed, matches num_samples in LoM and Namco but not in Senjin Aleste (unknown in G-Darius) */
if (vgmstream->loop_end_sample < vgmstream->num_samples)
vgmstream->loop_end_sample += 1;
}
}
strncpy(vgmstream->stream_name, psb.readable_name, STREAM_NAME_SIZE);
if (!vgmstream_open_stream(vgmstream, sf, psb.stream_offset[0]))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}
static segmented_layout_data* build_segmented_psb_opus(STREAMFILE* sf, psb_header_t* psb) {
segmented_layout_data* data = NULL;
int i, pos = 0, segment_count = 0, max_count = 2;
//TODO improve
//TODO these use standard switch opus (VBR), could sub-file? but skip_samples becomes more complex
uint32_t offsets[] = {psb->intro_offset, psb->body_offset};
uint32_t sizes[] = {psb->intro_size, psb->body_size};
uint32_t samples[] = {psb->intro_samples, psb->body_samples};
uint32_t skips[] = {0, psb->skip_samples};
/* intro + body (looped songs) or just body (standard songs)
* In full loops intro is 0 samples with a micro 1-frame opus [Nekopara (Switch)] */
if (offsets[0] && samples[0])
segment_count++;
if (offsets[1] && samples[1])
segment_count++;
/* init layout */
data = init_layout_segmented(segment_count);
if (!data) goto fail;
for (i = 0; i < max_count; i++) {
if (!offsets[i] || !samples[i])
continue;
#ifdef VGM_USE_FFMPEG
{
int start = read_u32le(offsets[i] + 0x10, sf) + 0x08;
int skip = read_s16le(offsets[i] + 0x1c, sf);
VGMSTREAM* v = allocate_vgmstream(psb->channels, 0);
if (!v) goto fail;
data->segments[pos++] = v;
v->sample_rate = psb->sample_rate;
v->num_samples = samples[i];
v->codec_data = init_ffmpeg_switch_opus(sf, offsets[i] + start, sizes[i] - start, psb->channels, skips[i] + skip, psb->sample_rate);
if (!v->codec_data) goto fail;
v->coding_type = coding_FFmpeg;
v->layout_type = layout_none;
}
#else
goto fail;
#endif
}
if (!setup_layout_segmented(data))
goto fail;
return data;
fail:
free_layout_segmented(data);
return NULL;
}
static VGMSTREAM* try_init_vgmstream(STREAMFILE* sf, init_vgmstream_t init_vgmstream, const char* extension, uint32_t offset, uint32_t size) {
STREAMFILE* temp_sf = NULL;
VGMSTREAM* v = NULL;
temp_sf = setup_subfile_streamfile(sf, offset, size, extension);
if (!temp_sf) goto fail;
v = init_vgmstream(temp_sf);
close_streamfile(temp_sf);
return v;
fail:
return NULL;
}
static layered_layout_data* build_layered_psb(STREAMFILE* sf, psb_header_t* psb) {
layered_layout_data* data = NULL;
int i;
/* init layout */
data = init_layout_layered(psb->layers);
if (!data) goto fail;
for (i = 0; i < psb->layers; i++) {
switch (psb->codec) {
case PCM: {
VGMSTREAM* v = allocate_vgmstream(1, 0);
if (!v) goto fail;
data->layers[i] = v;
v->sample_rate = psb->sample_rate;
v->num_samples = psb->num_samples;
switch(psb->bps) {
case 16: v->coding_type = coding_PCM16LE; break;
case 24: v->coding_type = coding_PCM24LE; break;
default: goto fail;
}
v->layout_type = layout_none;
if (!v->num_samples)
v->num_samples = pcm_bytes_to_samples(psb->stream_size[i], 1, psb->bps);
if (!vgmstream_open_stream(v, sf, psb->stream_offset[i]))
goto fail;
break;
}
case DSP:
data->layers[i] = try_init_vgmstream(sf, init_vgmstream_ngc_dsp_std_le, "adpcm", psb->stream_offset[i], psb->stream_size[i]);
if (!data->layers[i]) goto fail;
break;
default:
VGM_LOG("psb: layer not implemented\n");
goto fail;
}
}
/* setup layered VGMSTREAMs */
if (!setup_layout_layered(data))
goto fail;
return data;
fail:
free_layout_layered(data);
return NULL;
}
/*****************************************************************************/
static int prepare_fmt(STREAMFILE* sf, psb_header_t* psb) {
uint32_t offset = psb->fmt_offset;
if (!offset)
return 1; /* other codec, probably */
psb->format = read_u16le(offset + 0x00,sf);
if (psb->format == 0x6601) { /* X360 */
psb->format = read_u16be(offset + 0x00,sf);
psb->channels = read_u16be(offset + 0x02,sf);
psb->sample_rate = read_u32be(offset + 0x04,sf);
xma2_parse_fmt_chunk_extra(sf,
offset,
&psb->loop_flag,
&psb->num_samples,
&psb->loop_start,
&psb->loop_end,
1);
}
else {
psb->channels = read_u16le(offset + 0x02,sf);
psb->sample_rate = read_u32le(offset + 0x04,sf);
psb->avg_bitrate = read_u32le(offset + 0x08,sf);
psb->block_size = read_u16le(offset + 0x0c,sf);
psb->bps = read_u16le(offset + 0x0e,sf);
/* 0x10+ varies */
switch(psb->format) {
case 0x0002:
if (!msadpcm_check_coefs(sf, offset + 0x14))
goto fail;
break;
default:
break;
}
}
return 1;
fail:
return 0;
}
static int prepare_codec(STREAMFILE* sf, psb_header_t* psb) {
const char* spec = psb->tmp->spec;
const char* ext = psb->tmp->ext;
/* try fmt (most common) */
if (psb->format != 0) {
switch(psb->format) {
case 0x01:
psb->codec = PCM;
break;
case 0x02:
psb->codec = MSADPCM;
break;
case 0x161:
psb->codec = XWMA;
break;
case 0x166:
psb->codec = XMA2;
break;
default:
goto fail;
}
return 1;
}
/* try console strings */
if (!spec)
goto fail;
if (strcmp(spec, "nx") == 0) {
if (!ext)
goto fail;
/* common, multichannel */
if (strcmp(ext, ".opus") == 0) {
psb->codec = OPUSNX;
psb->body_samples -= psb->skip_samples;
/* When setting loopstr="range:N,M", doesn't seem to transition properly (clicks) unless aligned (not always?)
* > N=intro's sampleCount, M=intro+body's sampleCount - skipSamples - default_skip, but not always
* [Anonymous;Code (Switch)-bgm08, B-Project: Ryuusei Fantasia (Switch)-bgm27] */
if (psb->loop_range) {
//TODO read actual default skip
psb->intro_samples -= 120;
psb->body_samples -= 120;
}
if (!psb->loop_flag)
psb->loop_flag = psb->intro_samples > 0;
psb->loop_start = psb->intro_samples;
psb->loop_end = psb->body_samples + psb->intro_samples;
psb->num_samples = psb->intro_samples + psb->body_samples;
return 1;
}
/* Legend of Mana (Switch), layered */
if (strcmp(ext, ".adpcm") == 0) {
psb->codec = DSP;
psb->channels = psb->layers;
return 1;
}
/* Castlevania Advance Collection (Switch), layered */
if (strcmp(ext, ".p16") == 0) {
psb->codec = PCM;
psb->bps = 16;
psb->channels = psb->layers;
return 1;
}
}
if (strcmp(spec, "ps3") == 0) {
psb->codec = RIFF_AT3;
return 1;
}
if (strcmp(spec, "vita") == 0 || strcmp(spec, "ps4") == 0) {
if (is_id32be(psb->stream_offset[0], sf, "RIFF"))
psb->codec = RIFF_AT9;
else
psb->codec = VAG;
return 1;
}
if (strcmp(spec, "and") == 0) {
if (!ext)
goto fail;
if (strcmp(ext, ".ogg") == 0) {
psb->codec = OGG_VORBIS;
return 1;
}
if (strcmp(ext, ".wav") == 0) {
psb->codec = RIFF_WAV;
return 1;
}
}
fail:
vgm_logi("PSB: unknown codec (report)\n");
return 0;
}
static int prepare_name(psb_header_t* psb) {
const char* main_name = psb->tmp->voice;
const char* sub_name = psb->tmp->uniq;
char* buf = psb->readable_name;
int buf_size = sizeof(psb->readable_name);
if (!main_name) /* shouldn't happen */
return 1;
if (!sub_name)
sub_name = psb->tmp->wav;
if (!sub_name)
sub_name = psb->tmp->file;
/* sometimes we have main="bgm01", sub="bgm01.wav" = detect and ignore */
if (sub_name) {
int main_len = strlen(main_name);
int sub_len = strlen(sub_name);
if (main_len > sub_len && strncmp(main_name, sub_name, main_len) == 0) {
if (sub_name[main_len] == '\0' || strcmp(sub_name + main_len, ".wav") == 0)
sub_name = NULL;
}
}
if (sub_name) {
snprintf(buf, buf_size, "%s/%s", main_name, sub_name);
}
else {
snprintf(buf, buf_size, "%s", main_name);
}
return 1;
}
static int prepare_psb_extra(STREAMFILE* sf, psb_header_t* psb) {
if (!prepare_fmt(sf, psb))
goto fail;
if (!prepare_codec(sf, psb))
goto fail;
if (!prepare_name(psb))
goto fail;
return 1;
fail:
return 0;
}
/* channelList is an array (N layers, though typically only mono codecs like DSP) of objects:
* - archData: resource offset (RIFF) or sub-object
* - data/fmt/loop/wav
* - data/ext/samprate
* - body/channelCount/ext/intro/loop/samprate [Legend of Mana (Switch)]
* - body: data/sampleCount/skipSampleCount, intro: data/sampleCount
* - data/dpds/fmt/wav/loop
* - pan: array [N.0 .. 0.N] (when N layers, in practice just a wonky L/R definition)
*/
static int parse_psb_channels(psb_header_t* psb, psb_node_t* nchans) {
int i;
psb_node_t nchan, narch, nsub, node;
psb->layers = psb_node_get_count(nchans);
if (psb->layers == 0) goto fail;
if (psb->layers > PSB_MAX_LAYERS) goto fail;
for (i = 0; i < psb->layers; i++) {
psb_data_t data;
psb_type_t type;
psb_node_by_index(nchans, i, &nchan);
/* try to get possible keys (without overwritting), results will be handled and validated later as combos get complex */
psb_node_by_key(&nchan, "archData", &narch);
type = psb_node_get_type(&narch);
switch (type) {
case PSB_TYPE_DATA: /* Sega Vintage Collection (PS3) */
data = psb_node_get_result(&narch).data;
psb->stream_offset[i] = data.offset;
psb->stream_size[i] = data.size;
break;
case PSB_TYPE_OBJECT: /* rest */
/* typically:
* - data + fmt + others
* - body {data + fmt} + intro {data + fmt} + others [Legend of Mana (Switch)]
*/
data = psb_node_get_data(&narch, "data");
if (data.offset) {
psb->stream_offset[i] = data.offset;
psb->stream_size[i] = data.size;
}
data = psb_node_get_data(&narch, "fmt");
if (data.offset) {
psb->fmt_offset = data.offset;
psb->fmt_size = data.size;
}
psb->tmp->ext = psb_node_get_string(&narch, "ext"); /* appears for all channels, assumed to be the same */
if (psb_node_by_key(&narch, "loop", &node)) {
/* can be found as "false" with body+intro */
if (psb_node_get_type(&node) == PSB_TYPE_ARRAY) {
//todo improve
psb_node_by_index(&node, 0, &nsub);
psb_result_t ls = psb_node_get_result(&nsub);
psb_node_by_index(&node, 1, &nsub);
psb_result_t le = psb_node_get_result(&nsub);
if (psb->tmp->ext != NULL && (strcmp(psb->tmp->ext, ".ogg") == 0 || strcmp(psb->tmp->ext, ".wav") == 0)) {
/* LoM Android, still in samples but rarely they have decimals (only in .wav?) */
psb->loop_start = ls.flt;
psb->loop_end = le.flt;
}
else {
psb->loop_start = ls.num;
psb->loop_end = le.num;
}
psb->loop_test = 1; /* loop end meaning varies*/
}
}
if (psb_node_by_key(&narch, "body", &node)) {
data = psb_node_get_data(&node, "data");
psb->body_offset = data.offset;
psb->body_size = data.size;
psb->body_samples = psb_node_get_integer(&node, "sampleCount");
psb->skip_samples = psb_node_get_integer(&node, "skipSampleCount"); /* fixed to seek_preroll? (80ms) */
}
if (psb_node_by_key(&narch, "intro", &node)) {
data = psb_node_get_data(&node, "data");
psb->intro_offset = data.offset;
psb->intro_size = data.size;
psb->intro_samples = psb_node_get_integer(&node, "sampleCount");
}
data = psb_node_get_data(&narch, "dpds");
if (data.offset) {
psb->dpds_offset = data.offset;
psb->dpds_size = data.size;
}
psb->channels = psb_node_get_integer(&narch, "channelCount");
psb->sample_rate = (int)psb_node_get_float(&narch, "samprate"); /* seen in DSP */
if (!psb->sample_rate)
psb->sample_rate = psb_node_get_integer(&narch, "samprate"); /* seen in OpusNX */
psb->tmp->wav = psb_node_get_string(&narch, "wav");
/* DSP has a "pan" array like: [1.0, 0.0]=L, [0.0, 1.0 ]=R */
if (psb_node_by_key(&narch, "pan", &node)) {
psb_node_by_index(&node, i, &nsub);
if (psb_node_get_result(&nsub).flt != 1.0f) {
vgm_logi("PSB: unexpected pan (report)\n");
};
}
/* background: false?
*/
break;
default:
goto fail;
}
}
return 1;
fail:
VGM_LOG("psb: can't parse channel\n");
return 0;
}
/* parse a single archive, that can contain extra info here or inside channels */
static int parse_psb_voice(psb_header_t* psb, psb_node_t* nvoice) {
psb_node_t nsong, nchans;
psb->total_subsongs = psb_node_get_count(nvoice);
if (psb->target_subsong == 0) psb->target_subsong = 1;
if (psb->total_subsongs <= 0 || psb->target_subsong > psb->total_subsongs) goto fail;
/* target voice and stream info */
if (!psb_node_by_index(nvoice, psb->target_subsong - 1, &nsong))
goto fail;
psb->tmp->voice = psb_node_get_key(nvoice, psb->target_subsong - 1);
psb_node_by_key(&nsong, "channelList", &nchans);
if (!parse_psb_channels(psb, &nchans))
goto fail;
/* unsure of meaning but must exist (usually 0/1) */
if (psb_node_exists(&nsong, "device") <= 0)
goto fail;
/* names (optional) */
psb->tmp->file = psb_node_get_string(&nsong, "file");
psb->tmp->uniq = psb_node_get_string(&nsong, "uniq");
/* optional loop flag (loop points go in channels, or implicit in fmt/RIFF) */
if (!psb->loop_flag) {
const char* loopstr = psb_node_get_string(&nsong, "loopstr");
psb->loop_flag = psb_node_get_integer(&nsong, "loop") > 1;
/* loopstr values:
* - "none", w/ loop=0
* - "all", w/ loop = 2 [Legend of Mana (multi)]
* - "range:N,M", w/ loop = 2 [Anonymous;Code (Switch)] */
psb->loop_range = loopstr && strncmp(loopstr, "range:", 6) == 0; /* slightly different in rare cases */
}
/* other optional keys:
* - quality: ? (1=MSADPCM, 2=OPUSNX/PCM)
* - priority: f32, -1.0, 1.0 or 10.0 = max?
* - type: 0/1? (internal classification?)
* - volume: 0.0 .. 1.0
* - group?
*/
return 1;
fail:
VGM_LOG("psb: can't parse voice\n");
return 0;
}
/* .psb is binary JSON-like structure that can be used to hold various formats, we want audio data:
* - (root): (object)
* - "id": (format string)
* - "spec": (platform string)
* - "version": (float)
* - "voice": (objects, one per subsong)
* - (voice name 1): (object)
* - "channelList": (array of N objects)
* - "archData": (main audio part, varies per game/platform/codec)
* - "device": ?
* ...
* - (voice name N): ...
* From decompilations, audio code reads common keys up to "archData", then depends on game (not unified).
* Keys are (seemingly) stored in text order.
*/
static int parse_psb(STREAMFILE* sf, psb_header_t* psb) {
psb_temp_t tmp = {0};
psb_context_t* ctx = NULL;
psb_node_t nroot, nvoice;
float version;
psb->tmp = &tmp;
psb->target_subsong = sf->stream_index;
ctx = psb_init(sf);
if (!ctx) goto fail;
//psb_print(ctx);
/* main process */
psb_get_root(ctx, &nroot);
/* format definition, non-audio IDs include "motion", "font", or no "id" at all */
psb->tmp->id = psb_node_get_string(&nroot, "id");
if (!psb->tmp->id || strcmp(psb->tmp->id, "sound_archive") != 0) {
/* "sound" is just a list of available "sound_archive" */
if (psb->tmp->id && strcmp(psb->tmp->id, "sound") == 0)
vgm_logi("PSB: empty archive type '%s' (ignore)\n", psb->tmp->id);
else
vgm_logi("PSB: unsupported archive type '%s' (ignore?)\n", psb->tmp->id);
goto fail;
}
/* platform: x360/ps3/win/nx/etc */
psb->tmp->spec = psb_node_get_string(&nroot, "spec");
/* enforced by M2 code */
version = psb_node_get_float(&nroot, "version");
if (version < 1.02f || version > 1.02f) {
vgm_logi("PSB: unsupported version %f (report)\n", version);
goto fail;
}
/* main subsong */
psb_node_by_key(&nroot, "voice", &nvoice);
if (!parse_psb_voice(psb, &nvoice))
goto fail;
/* post stuff before closing PSB */
if (!prepare_psb_extra(sf, psb))
goto fail;
psb->tmp = NULL;
psb_close(ctx);
return 1;
fail:
psb_close(ctx);
VGM_LOG("psb: can't parse PSB\n");
return 0;
}
#if 0
typedef struct {
void* init;
const char* id32;
const char* exts;
} metadef_t;
metadef_t md_psb = {
.init = init_vgmstream_psb,
.exts = "psb",
.id32 = "PSB\0", //24b/masked IDs?
.id32 = get_id32be("PSB\0"), //???
.idfn = psb_check_id,
}
#endif