mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 18:05:52 +01:00
118 lines
3.5 KiB
C
118 lines
3.5 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* RKV - from Legacy of Kain - Blood Omen 2 (PS2) */
|
|
VGMSTREAM* init_vgmstream_ps2_rkv(STREAMFILE *sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
off_t start_offset, header_offset;
|
|
size_t data_size;
|
|
int loop_flag, channels;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(sf, "rkv"))
|
|
goto fail;
|
|
if (read_u32be(0x24,sf) != 0x00) /* quick test vs GC rkv (coef position) */
|
|
goto fail;
|
|
|
|
/* some RKV got info at offset 0x00, some other at 0x0 4 */
|
|
if (read_u32le(0x00,sf) == 0)
|
|
header_offset = 0x04;
|
|
else
|
|
header_offset = 0x00;
|
|
|
|
switch (read_u32le(header_offset+0x0c,sf)) {
|
|
case 0x00: channels = 1; break;
|
|
case 0x01: channels = 2; break;
|
|
default: goto fail;
|
|
}
|
|
loop_flag = (read_u32le(header_offset+0x04,sf) != 0xFFFFFFFF);
|
|
start_offset = 0x800;
|
|
data_size = get_streamfile_size(sf) - start_offset;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = read_s32le(header_offset,sf);
|
|
vgmstream->num_samples = ps_bytes_to_samples(data_size, channels);
|
|
//vgmstream->num_samples = read_32bitLE(header_offset+0x08,sf); /* sometimes not set */
|
|
if (loop_flag) {
|
|
vgmstream->loop_start_sample = read_s32le(header_offset+0x04,sf);
|
|
vgmstream->loop_end_sample = read_s32le(header_offset+0x08,sf);
|
|
}
|
|
|
|
vgmstream->meta_type = meta_PS2_RKV;
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x400;
|
|
if (vgmstream->interleave_block_size)
|
|
vgmstream->interleave_last_block_size = (data_size % (vgmstream->interleave_block_size*vgmstream->channels)) / vgmstream->channels;
|
|
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|
|
|
|
/* RKV - from Legacy of Kain - Blood Omen 2 (GC) */
|
|
VGMSTREAM* init_vgmstream_ngc_rkv(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channels;
|
|
|
|
|
|
/* checks */
|
|
/* "": empty (files have names but no extensions)
|
|
* .rkv: container bigfile extension
|
|
* .bo2: fake extension */
|
|
if (!check_extensions(sf, ",rkv,bo2"))
|
|
goto fail;
|
|
if (read_u32be(0x00,sf) != 0x00)
|
|
goto fail;
|
|
if (read_u32be(0x24,sf) == 0x00) /* quick test vs GC rkv (coef position) */
|
|
goto fail;
|
|
|
|
switch (read_u32be(0x10,sf)) {
|
|
case 0x00: channels = 1; break;
|
|
case 0x01: channels = 2; break;
|
|
default: goto fail;
|
|
}
|
|
loop_flag = (read_u32be(0x08,sf) != 0xFFFFFFFF);
|
|
start_offset = 0x800;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = read_s32be(0x04,sf);
|
|
vgmstream->num_samples = read_s32be(0x0C,sf);
|
|
if (loop_flag) {
|
|
vgmstream->loop_start_sample = read_s32be(0x08,sf);
|
|
vgmstream->loop_end_sample = read_s32be(0x0C,sf);
|
|
}
|
|
|
|
vgmstream->meta_type = meta_NGC_RKV;
|
|
vgmstream->coding_type = coding_NGC_DSP;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x400;
|
|
|
|
dsp_read_coefs_be(vgmstream,sf,0x24,0x2e);
|
|
/* hist at 0x44/0x72? */
|
|
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|