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Fix some .sts [Gacharoku 2 (PS2)]

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This commit is contained in:
bnnm 2021-01-03 16:00:08 +01:00
parent 187aab20c1
commit ccbb4f5097
1 changed files with 35 additions and 30 deletions
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65
src/meta/ps2_exst.c
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@ -3,66 +3,71 @@
/* EXST - from Sony games [Shadow of the Colossus (PS2), Gacha Mecha Stadium Saru Battle (PS2)] */
VGMSTREAM * init_vgmstream_ps2_exst(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * streamBody = NULL;
VGMSTREAM* init_vgmstream_ps2_exst(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
STREAMFILE* sf_body = NULL;
off_t start_offset;
int loop_flag, channel_count;
int loop_flag, channels, sample_rate;
size_t block_size, num_blocks, loop_start_block;
/* checks */
/* .sts+int: main [Shadow of the Colossus (PS2)] (some .sts have manually joined header+body)
/* .sts+int: standard [Shadow of the Colossus (PS2)] (some fake .sts have manually joined header+body)
* .x: header+body [Ape Escape 3 (PS2)] */
if (!check_extensions(streamFile, "sts,x"))
if (!check_extensions(sf, "sts,x"))
goto fail;
if (read_32bitBE(0x00,streamFile) != 0x45585354) /* "EXST" */
if (!is_id32be(0x00,sf, "EXST"))
goto fail;
streamBody = open_streamfile_by_ext(streamFile,"int");
if (!streamBody) {
/* data+body joined */
start_offset = 0x78;
if (get_streamfile_size(streamFile) < start_offset)
goto fail;
}
else {
/* body is separate */
sf_body = open_streamfile_by_ext(sf,"int");
if (sf_body) {
/* separate header+body (header is 0x78) */
start_offset = 0x00;
}
else {
/* joint header+body */
start_offset = 0x78;
/* Gacharoku 2 has header+data but padded header (ELF has pointers + size to SOUND.PCK, and
* treats them as single files, no extension but there are Sg2ExStAdpcm* calls in the ELF) */
if ((get_streamfile_size(sf) % 0x10) == 0)
start_offset = 0x80;
if (get_streamfile_size(sf) < start_offset)
goto fail;
}
channel_count = read_16bitLE(0x06,streamFile);
loop_flag = read_32bitLE(0x0C,streamFile) == 1;
loop_start_block = read_32bitLE(0x10,streamFile);
num_blocks = read_32bitLE(0x14,streamFile);
channels = read_u16le(0x06,sf);
sample_rate = read_u32le(0x08,sf);
loop_flag = read_u32le(0x0C,sf) == 1;
loop_start_block = read_u32le(0x10,sf);
num_blocks = read_u32le(0x14,sf);
/* 0x18: 0x24 config per channel? (volume+panning+etc?) */
/* rest is padding up to 0x78 */
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->sample_rate = read_32bitLE(0x08,streamFile);
vgmstream->meta_type = meta_PS2_EXST;
vgmstream->sample_rate = sample_rate;
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = 0x400;
block_size = vgmstream->interleave_block_size * vgmstream->channels;
vgmstream->num_samples = ps_bytes_to_samples(num_blocks*block_size, channel_count);
if (vgmstream->loop_flag) {
vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start_block*block_size, channel_count);;
vgmstream->loop_end_sample = vgmstream->num_samples;
}
vgmstream->num_samples = ps_bytes_to_samples(num_blocks * block_size, channels);
vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start_block * block_size, channels);
vgmstream->loop_end_sample = vgmstream->num_samples;
if (!vgmstream_open_stream(vgmstream,streamBody ? streamBody : streamFile,start_offset))
if (!vgmstream_open_stream(vgmstream, sf_body ? sf_body : sf, start_offset))
goto fail;
close_streamfile(streamBody);
close_streamfile(sf_body);
return vgmstream;
fail:
close_streamfile(streamBody);
close_streamfile(sf_body);
close_vgmstream(vgmstream);
return NULL;
}