mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-18 17:35:53 +01:00
127 lines
3.1 KiB
C
127 lines
3.1 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
|
|
static VGMSTREAM* init_vgmstream_ikm_ps2(STREAMFILE* sf) {
|
|
VGMSTREAM* v = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channels;
|
|
|
|
if (!is_id32be(0x40,sf, "AST\0"))
|
|
goto fail;
|
|
|
|
loop_flag = (read_s32le(0x14, sf) > 0);
|
|
channels = read_s32le(0x50, sf);
|
|
start_offset = 0x800;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
v = allocate_vgmstream(channels, loop_flag);
|
|
if (!v) goto fail;
|
|
|
|
v->meta_type = meta_IKM;
|
|
v->sample_rate = read_s32le(0x44, sf);
|
|
v->num_samples = ps_bytes_to_samples(read_s32le(0x4c, sf), channels);
|
|
v->loop_start_sample = read_s32le(0x14, sf);
|
|
v->loop_end_sample = read_s32le(0x18, sf);
|
|
v->coding_type = coding_PSX;
|
|
v->layout_type = layout_interleave;
|
|
v->interleave_block_size = 0x10; /* @0x40 / channels */
|
|
|
|
if (!vgmstream_open_stream(v, sf, start_offset))
|
|
goto fail;
|
|
return v;
|
|
|
|
fail:
|
|
close_vgmstream(v);
|
|
return NULL;
|
|
}
|
|
|
|
static VGMSTREAM* init_vgmstream_ikm_pc(STREAMFILE* sf) {
|
|
VGMSTREAM* v = NULL;
|
|
off_t start_offset;
|
|
|
|
/* find "OggS" start */
|
|
if (is_id32be(0x30,sf, "OggS"))
|
|
start_offset = 0x30; /* Chaos Legion (PC) */
|
|
else
|
|
start_offset = 0x800; /* Legend of Galactic Heroes (PC) */
|
|
|
|
{
|
|
ogg_vorbis_meta_info_t ovmi = {0};
|
|
|
|
ovmi.meta_type = meta_IKM;
|
|
ovmi.loop_start = read_s32le(0x14, sf);
|
|
ovmi.loop_end = read_s32le(0x18, sf);
|
|
ovmi.loop_end_found = ovmi.loop_end;
|
|
ovmi.loop_flag = ovmi.loop_end > 0;
|
|
ovmi.stream_size = read_s32le(0x24, sf);
|
|
|
|
v = init_vgmstream_ogg_vorbis_config(sf, start_offset, &ovmi);
|
|
if (!v) goto fail;
|
|
}
|
|
|
|
return v;
|
|
|
|
fail:
|
|
close_vgmstream(v);
|
|
return NULL;
|
|
}
|
|
|
|
static VGMSTREAM* init_vgmstream_ikm_psp(STREAMFILE* sf) {
|
|
VGMSTREAM* v = NULL;
|
|
STREAMFILE* temp_sf = NULL;
|
|
off_t start_offset;
|
|
size_t data_size;
|
|
|
|
if (!is_id32be(0x800,sf, "RIFF"))
|
|
goto fail;
|
|
|
|
/* loop values (pre-adjusted without encoder delay) at 0x14/18 are found in the RIFF too */
|
|
data_size = read_s32le(0x24, sf);
|
|
start_offset = 0x800;
|
|
|
|
temp_sf = setup_subfile_streamfile(sf, start_offset, data_size, "at3");
|
|
if (!temp_sf) goto fail;
|
|
|
|
v = init_vgmstream_riff(temp_sf);
|
|
if (!v) goto fail;
|
|
|
|
v->meta_type = meta_IKM;
|
|
|
|
close_streamfile(temp_sf);
|
|
return v;
|
|
|
|
fail:
|
|
close_streamfile(temp_sf);
|
|
close_vgmstream(v);
|
|
return NULL;
|
|
}
|
|
|
|
/* IKM - MiCROViSiON container */
|
|
VGMSTREAM* init_vgmstream_ikm(STREAMFILE* sf) {
|
|
uint32_t type;
|
|
|
|
/* checks */
|
|
if (!is_id32be(0x00,sf, "IKM\0"))
|
|
goto fail;
|
|
|
|
if (!check_extensions(sf,"ikm"))
|
|
goto fail;
|
|
|
|
type = read_u32le(0x20, sf);
|
|
switch(type) {
|
|
case 0x00: /* The Legend of Heroes: A Tear of Vermillion (PSP) */
|
|
return init_vgmstream_ikm_psp(sf);
|
|
case 0x01: /* Chaos Legion (PC), Legend of Galactic Heroes (PC) */
|
|
return init_vgmstream_ikm_pc(sf);
|
|
case 0x03: /* Zwei (PS2) */
|
|
return init_vgmstream_ikm_ps2(sf);
|
|
default:
|
|
goto fail;
|
|
}
|
|
|
|
fail:
|
|
return NULL;
|
|
}
|