mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 18:05:52 +01:00
59 lines
1.9 KiB
C
59 lines
1.9 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
|
|
/* VSF - from Square Enix PS2 games between 2004-2006 [Musashi: Samurai Legend (PS2), Front Mission 5 (PS2)] */
|
|
VGMSTREAM * init_vgmstream_vsf(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channel_count, flags, pitch;
|
|
size_t channel_size, loop_start;
|
|
|
|
/* checks */
|
|
/* .vsf: header id and actual extension [Code Age Commanders (PS2)] */
|
|
if (!check_extensions(streamFile, "vsf"))
|
|
goto fail;
|
|
if (read_32bitBE(0x00,streamFile) != 0x56534600) /* "VSF\0" */
|
|
goto fail;
|
|
|
|
/* 0x04: data size */
|
|
/* 0x08: file number? */
|
|
/* 0x0c: version? (always 0x00010000) */
|
|
channel_size = read_32bitLE(0x10,streamFile) * 0x10;
|
|
/* 0x14: frame size */
|
|
loop_start = read_32bitLE(0x18,streamFile) * 0x10; /* also in channel size */
|
|
flags = read_32bitLE(0x1c,streamFile);
|
|
pitch = read_32bitLE(0x20,streamFile);
|
|
/* 0x24: volume? */
|
|
/* 0x28: ? (may be 0) */
|
|
/* rest is 0xFF */
|
|
|
|
channel_count = (flags & (1<<0)) ? 2 : 1;
|
|
loop_flag = (flags & (1<<1));
|
|
start_offset = (flags & (1<<8)) ? 0x80 : 0x800;
|
|
/* flag (1<<4) is common but no apparent differences, no other flags known */
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = round10((48000 * pitch) / 4096);
|
|
vgmstream->num_samples = ps_bytes_to_samples(channel_size, 1);
|
|
vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start, 1);
|
|
vgmstream->loop_end_sample = vgmstream->num_samples;
|
|
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x400;
|
|
vgmstream->meta_type = meta_VSF;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, streamFile, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|