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vgmstream/src/meta/ps2_ads.c
bnnm c26684ffc1 Cleanup
2021-06-20 11:31:30 +02:00

369 lines
15 KiB
C
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#include "meta.h"
#include "../coding/coding.h"
/* .ADS - Sony's "Audio Stream" format [Edit Racing (PS2), Evergrace II (PS2), Pri-Saga! Portable (PSP)] */
VGMSTREAM* init_vgmstream_ads(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
off_t start_offset;
int loop_flag, channels, sample_rate, interleave, is_loop_samples = 0;
size_t body_size, stream_size, file_size;
uint32_t codec, loop_start_sample = 0, loop_end_sample = 0, loop_start_offset = 0, loop_end_offset = 0;
coding_t coding_type;
int ignore_silent_frame_cavia = 0, ignore_silent_frame_capcom = 0;
/* checks */
/* .ads: actual extension
* .ss2: demuxed videos (fake?)
* .pcm: Taisho Mononoke Ibunroku (PS2)
* .adx: Armored Core 3 (PS2)
* (extensionless): MotoGP (PS2)
* .800: Mobile Suit Gundam: The One Year War (PS2) */
if (!check_extensions(sf, "ads,ss2,pcm,adx,,800"))
goto fail;
if (!is_id32be(0x00,sf,"SShd") &&
!is_id32be(0x20,sf,"SSbd"))
goto fail;
if (read_32bitLE(0x04,sf) != 0x18 && /* standard header size */
read_32bitLE(0x04,sf) != 0x20) /* True Fortune (PS2) */
goto fail;
/* base values (a bit unorderly since devs hack ADS too much and detection is messy) */
{
codec = read_32bitLE(0x08,sf);
sample_rate = read_32bitLE(0x0C,sf);
channels = read_32bitLE(0x10,sf); /* up to 4 [Eve of Extinction (PS2)] */
interleave = read_32bitLE(0x14,sf); /* set even when mono */
switch(codec) {
case 0x01: /* official definition */
case 0x80000001: /* [Evergrace II (PS2), but not other From Soft games] */
coding_type = coding_PCM16LE;
/* Angel Studios/Rockstar San Diego videos codec hijack [Red Dead Revolver (PS2), Spy Hunter 2 (PS2)] */
if (sample_rate == 12000 && interleave == 0x200) {
sample_rate = 48000;
interleave = 0x40;
coding_type = coding_DVI_IMA_int;
/* should try to detect IMA data but it's not so easy, this works ok since
* no known games use these settings, videos normally are 48000/24000hz */
}
break;
case 0x10: /* official definition */
case 0x02: /* Capcom games extension, stereo only [Megaman X7 (PS2), Breath of Fire V (PS2), Clock Tower 3 (PS2)] */
coding_type = coding_PSX;
break;
case 0x00: /* PCM16BE from official docs, probably never used */
default:
VGM_LOG("ADS: unknown codec\n");
goto fail;
}
}
/* sizes */
{
file_size = get_streamfile_size(sf);
body_size = read_32bitLE(0x24,sf);
/* bigger than file_size in rare cases, even if containing all data (ex. Megaman X7's SY04.ADS) */
if (body_size + 0x28 > file_size) {
body_size = file_size - 0x28;
}
/* True Fortune: weird stream size */
if (body_size * 2 == file_size - 0x18) {
body_size = (body_size * 2) - 0x10;
}
stream_size = body_size;
}
/* offset */
{
start_offset = 0x28;
/* start padding (body size is ok, may have end padding) [Evergrace II (PS2), Armored Core 3 (PS2)] */
/* detection depends on files being properly ripped, so broken/cut files won't play ok */
if (file_size - body_size >= 0x800) {
start_offset = 0x800; /* aligned to sector */
/* too much end padding, happens in Super Galdelic Hour's SEL.ADS, maybe in bad rips too */
VGM_ASSERT(file_size - body_size > 0x8000, "ADS: big end padding %x\n", file_size - body_size);
}
/* "ADSC" container */
if (coding_type == coding_PSX
&& read_32bitLE(0x28,sf) == 0x1000 /* real start */
&& read_32bitLE(0x2c,sf) == 0
&& read_32bitLE(0x1008,sf) != 0) {
int i;
int is_adsc = 1;
/* should be empty up to data start */
for (i = 0; i < 0xFDC/4; i++) {
if (read_32bitLE(0x2c+(i*4),sf) != 0) {
is_adsc = 0;
break;
}
}
if (is_adsc) {
start_offset = 0x1000 - 0x08; /* remove "ADSC" alignment */
/* stream_size doesn't count start offset padding */
}
}
}
/* loops */
{
uint32_t loop_start, loop_end;
loop_start = read_32bitLE(0x18,sf);
loop_end = read_32bitLE(0x1C,sf);
loop_flag = 0;
/* detect loops the best we can; docs say those are loop block addresses,
* but each maker does whatever (no games seem to use PS-ADPCM loop flags though) */
if (loop_start != 0xFFFFFFFF && loop_end == 0xFFFFFFFF) {
if (codec == 0x02) { /* Capcom codec */
/* Capcom games: loop_start is address * 0x10 [Mega Man X7, Breath of Fire V, Clock Tower 3] */
loop_flag = ((loop_start * 0x10) + 0x200 < body_size); /* near the end (+0x20~80) means no loop */
loop_start_offset = loop_start * 0x10;
ignore_silent_frame_capcom = 1;
}
else if (read_32bitBE(0x28,sf) == 0x50414421) { /* "PAD!" padding until 0x800 */
/* Super Galdelic Hour: loop_start is PCM bytes */
loop_flag = 1;
loop_start_sample = loop_start / 2 / channels;
is_loop_samples = 1;
}
else if ((loop_start % 0x800 == 0) && loop_start > 0) { /* sector-aligned, min/0 is 0x800 */
/* cavia games: loop_start is offset [Drakengard 1/2, GITS: Stand Alone Complex] */
/* offset is absolute from the "cavia stream format" container that adjusts ADS start */
loop_flag = 1;
loop_start_offset = loop_start - 0x800;
ignore_silent_frame_cavia = 1;
}
else if (loop_start % 0x800 != 0 || loop_start == 0) { /* not sector aligned */
/* Katakamuna: loop_start is address * 0x10 */
loop_flag = 1;
loop_start_offset = loop_start * 0x10;
}
}
else if (loop_start != 0xFFFFFFFF && loop_end != 0xFFFFFFFF
&& loop_end > 0) { /* ignore Kamen Rider Blade and others */
#if 0
//todo improve detection to avoid clashing with address*0x20
if (loop_end == body_size / 0x10) { /* always body_size? but not all files should loop */
/* Akane Iro ni Somaru Saka - Parallel: loops is address * 0x10 */
loop_flag = 1;
loop_start_offset = loop_start * 0x10;
loop_end_offset = loop_end * 0x10;
}
#endif
if (loop_end <= body_size / 0x200 && coding_type == coding_PCM16LE) { /* close to body_size */
/* Gofun-go no Sekai: loops is address * 0x200 */
loop_flag = 1;
loop_start_offset = loop_start * 0x200;
loop_end_offset = loop_end * 0x200;
}
else if (loop_end <= body_size / 0x70 && coding_type == coding_PCM16LE) { /* close to body_size */
/* Armored Core - Nexus: loops is address * 0x70 */
loop_flag = 1;
loop_start_offset = loop_start * 0x70;
loop_end_offset = loop_end * 0x70;
}
else if (loop_end <= body_size / 0x20 && coding_type == coding_PCM16LE) { /* close to body_size */
/* Armored Core - Nine Breaker: loops is address * 0x20 */
loop_flag = 1;
loop_start_offset = loop_start * 0x20;
loop_end_offset = loop_end * 0x20;
}
else if (loop_end <= body_size / 0x20 && coding_type == coding_PSX) {
/* various games: loops is address * 0x20 [Fire Pro Wrestling Returns, A.C.E. - Another Century's Episode] */
loop_flag = 1;
loop_start_offset = loop_start * 0x20;
loop_end_offset = loop_end * 0x20;
}
else if (loop_end <= body_size / 0x10 && coding_type == coding_PSX
&& (read_32bitBE(0x28 + loop_end*0x10 + 0x10 + 0x00, sf) == 0x00077777 ||
read_32bitBE(0x28 + loop_end*0x10 + 0x20 + 0x00, sf) == 0x00077777)) {
/* not-quite-looping sfx, ending with a "non-looping PS-ADPCM end frame" [Kono Aozora ni Yakusoku, Chanter] */
loop_flag = 0;
}
else if ((loop_end > body_size / 0x20 && coding_type == coding_PSX) ||
(loop_end > body_size / 0x70 && coding_type == coding_PCM16LE)) {
/* various games: loops in samples [Eve of Extinction, Culdcept, WWE Smackdown! 3] */
loop_flag = 1;
loop_start_sample = loop_start;
loop_end_sample = loop_end;
is_loop_samples = 1;
}
}
//todo Jet Ion Grand Prix seems to have some loop-like values at 0x28
//todo Yoake mae yori Ruriiro na has loops in unknown format
}
/* most games have empty PS-ADPCM frames in the last interleave block that should be skipped for smooth looping */
if (coding_type == coding_PSX) {
off_t offset, min_offset;
offset = start_offset + stream_size;
min_offset = offset - interleave;
do {
offset -= 0x10;
if (read_8bit(offset+0x01,sf) == 0x07) {
stream_size -= 0x10*channels;/* ignore don't decode flag/padding frame (most common) [ex. Capcom games] */
}
else if (read_32bitBE(offset+0x00,sf) == 0x00000000 && read_32bitBE(offset+0x04,sf) == 0x00000000 &&
read_32bitBE(offset+0x08,sf) == 0x00000000 && read_32bitBE(offset+0x0c,sf) == 0x00000000) {
stream_size -= 0x10*channels; /* ignore null frame [ex. A.C.E. Another Century Episode 1/2/3] */
}
else if (read_32bitBE(offset+0x00,sf) == 0x00007777 && read_32bitBE(offset+0x04,sf) == 0x77777777 &&
read_32bitBE(offset+0x08,sf) == 0x77777777 && read_32bitBE(offset+0x0c,sf) == 0x77777777) {
stream_size -= 0x10*channels; /* ignore padding frame [ex. Akane Iro ni Somaru Saka - Parallel] */
}
else if (read_32bitBE(offset+0x00,sf) == 0x0C020000 && read_32bitBE(offset+0x04,sf) == 0x00000000 &&
read_32bitBE(offset+0x08,sf) == 0x00000000 && read_32bitBE(offset+0x0c,sf) == 0x00000000 &&
ignore_silent_frame_cavia) {
stream_size -= 0x10*channels; /* ignore silent frame [ex. cavia games] */
}
else if (read_32bitBE(offset+0x00,sf) == 0x0C010000 && read_32bitBE(offset+0x04,sf) == 0x00000000 &&
read_32bitBE(offset+0x08,sf) == 0x00000000 && read_32bitBE(offset+0x0c,sf) == 0x00000000 &&
ignore_silent_frame_capcom) {
stream_size -= 0x10*channels; /* ignore silent frame [ex. Capcom games] */
}
else {
break; /* standard frame */
}
}
while(offset > min_offset);
/* don't bother fixing loop_end_offset since will be adjusted to num_samples later, if needed */
}
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = sample_rate;
vgmstream->coding_type = coding_type;
vgmstream->interleave_block_size = interleave;
vgmstream->layout_type = layout_interleave;
vgmstream->meta_type = meta_ADS;
switch(coding_type) {
case coding_PCM16LE:
vgmstream->num_samples = pcm16_bytes_to_samples(stream_size, channels);
break;
case coding_PSX:
vgmstream->num_samples = ps_bytes_to_samples(stream_size, channels);
break;
case coding_DVI_IMA_int:
vgmstream->num_samples = ima_bytes_to_samples(stream_size, channels);
break;
default:
goto fail;
}
if (vgmstream->loop_flag) {
if (is_loop_samples) {
vgmstream->loop_start_sample = loop_start_sample;
vgmstream->loop_end_sample = loop_end_sample;
}
else {
switch(vgmstream->coding_type) {
case coding_PCM16LE:
vgmstream->loop_start_sample = pcm16_bytes_to_samples(loop_start_offset, channels);
vgmstream->loop_end_sample = pcm16_bytes_to_samples(loop_end_offset, channels);
break;
case coding_PSX:
vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start_offset, channels);
vgmstream->loop_end_sample = ps_bytes_to_samples(loop_end_offset, channels);
break;
default:
goto fail;
}
}
/* when loop_end = 0xFFFFFFFF */
if (vgmstream->loop_end_sample == 0)
vgmstream->loop_end_sample = vgmstream->num_samples;
/* happens even when loops are directly samples, loops sound fine (ex. Culdcept) */
if (vgmstream->loop_end_sample > vgmstream->num_samples)
vgmstream->loop_end_sample = vgmstream->num_samples;
}
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}
/* ****************************************************************************** */
/* ADS in containers */
VGMSTREAM* init_vgmstream_ads_container(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
STREAMFILE* temp_sf = NULL;
off_t subfile_offset;
size_t subfile_size;
/* checks */
if (!check_extensions(sf, "ads"))
goto fail;
if (read_32bitBE(0x00,sf) == 0x41445343 && /* "ADSC" */
read_32bitBE(0x04,sf) == 0x01000000) {
/* Kenka Bancho 2, Kamen Rider Hibiki/Kabuto, Shinjuku no Okami */
subfile_offset = 0x08;
}
else if (read_32bitBE(0x00,sf) == 0x63617669 && /* "cavi" */
read_32bitBE(0x04,sf) == 0x61207374 && /* "a st" */
read_32bitBE(0x08,sf) == 0x7265616D) { /* "ream" */
/* cavia games: Drakengard 1/2, Dragon Quest Yangus, GITS: Stand Alone Complex */
subfile_offset = 0x7d8;
}
else {
goto fail;
}
subfile_size = get_streamfile_size(sf) - subfile_offset;
temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, NULL);
if (!temp_sf) goto fail;
vgmstream = init_vgmstream_ads(temp_sf);
close_streamfile(temp_sf);
return vgmstream;
fail:
close_streamfile(temp_sf);
close_vgmstream(vgmstream);
return NULL;
}
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