67 lines
2.0 KiB
C
67 lines
2.0 KiB
C
#include "meta.h"
|
|
#include "../layout/layout.h"
|
|
#include "../coding/coding.h"
|
|
|
|
|
|
/* VS - VagStream from Square Sounds Co. games [Final Fantasy X (PS2) voices, Unlimited Saga (PS2) voices, All Star Pro-Wrestling 2/3 (PS2) music] */
|
|
VGMSTREAM* init_vgmstream_vs_square(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
int channels, loop_flag, pitch, flags;
|
|
off_t start_offset;
|
|
|
|
|
|
/* checks */
|
|
/* .vs: extension from debug strings (probably like The Bouncer's .vs, very similar) */
|
|
if (!check_extensions(sf, "vs"))
|
|
goto fail;
|
|
if (!is_id32be(0x00,sf,"VS\0\0"))
|
|
goto fail;
|
|
|
|
flags = read_u32le(0x04,sf);
|
|
/* 0x08: block number */
|
|
/* 0x0c: blocks left in the subfile */
|
|
pitch = read_u32le(0x10,sf); /* usually 0x1000 = 48000 */
|
|
/* 0x14: volume, usually 0x64 = 100, up to 128 [Lethal Skies / Sidewinder F (PS2)] */
|
|
/* 0x18: null */
|
|
/* 0x1c: null */
|
|
|
|
/* some Front Mission 4 voices have flag 0x100, no idea */
|
|
if (flags != 0x00 && flags != 0x01) {
|
|
VGM_LOG("VS: unknown flags %x\n", flags);
|
|
}
|
|
|
|
loop_flag = 0;
|
|
channels = (flags & 1) ? 2 : 1;
|
|
start_offset = 0x00;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_VS_SQUARE;
|
|
vgmstream->sample_rate = round10((48000 * pitch) / 4096); /* needed for rare files */
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_blocked_vs_square;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
|
|
/* calc num_samples */
|
|
{
|
|
vgmstream->next_block_offset = start_offset;
|
|
do {
|
|
block_update(vgmstream->next_block_offset,vgmstream);
|
|
vgmstream->num_samples += ps_bytes_to_samples(vgmstream->current_block_size, 1);
|
|
}
|
|
while (vgmstream->next_block_offset < get_streamfile_size(sf));
|
|
block_update(start_offset, vgmstream);
|
|
}
|
|
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|