mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 23:52:53 +01:00
63 lines
2.2 KiB
C
63 lines
2.2 KiB
C
|
#include "meta.h"
|
||
|
|
#include "../coding/coding.h"
|
||
|
|
|
||
|
|
/* 04SW - found in Driver: Parallel Lines (Wii) */
|
||
|
|
VGMSTREAM * init_vgmstream_wii_04sw(STREAMFILE *streamFile) {
|
||
|
|
VGMSTREAM * vgmstream = NULL;
|
||
|
|
off_t start_offset;
|
||
|
|
int loop_flag, channel_count;
|
||
|
|
size_t file_size, data_size;
|
||
|
|
|
||
|
|
|
||
|
|
/* check extension, case insensitive */
|
||
|
|
/* ".04sw" is just the ID, the real filename inside the file uses .XA */
|
||
|
|
if (!check_extensions(streamFile,"xa,04sw"))
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* check header */
|
||
|
|
if (read_32bitBE(0x00,streamFile) != 0x30345357) /* "04SW" */
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
/* after the ID goes a semi-standard DSP header */
|
||
|
|
if (read_32bitBE(0x10,streamFile) != 0) goto fail; /* should be non looping */
|
||
|
|
loop_flag = 0;
|
||
|
|
/* not in header it seems so just dual header check */
|
||
|
|
channel_count = (read_32bitBE(0x04,streamFile) == read_32bitBE(0x64,streamFile)) ? 2 : 1;
|
||
|
|
|
||
|
|
start_offset = read_32bitBE(0x04 + 0x60*channel_count,streamFile);
|
||
|
|
|
||
|
|
file_size = get_streamfile_size(streamFile);
|
||
|
|
data_size = read_32bitBE(0x04 + 0x60*channel_count + 0x04,streamFile);
|
||
|
|
if (data_size+start_offset != file_size) goto fail;
|
||
|
|
|
||
|
|
|
||
|
|
/* build the VGMSTREAM */
|
||
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
||
|
|
if (!vgmstream) goto fail;
|
||
|
|
|
||
|
|
vgmstream->sample_rate = read_32bitBE(0x0c,streamFile);
|
||
|
|
vgmstream->num_samples = read_32bitBE(0x04,streamFile);
|
||
|
|
|
||
|
|
vgmstream->coding_type = coding_NGC_DSP;
|
||
|
|
vgmstream->layout_type = channel_count == 1 ? layout_none : layout_interleave_shortblock;
|
||
|
|
vgmstream->interleave_block_size = 0x8000;
|
||
|
|
vgmstream->interleave_smallblock_size = (read_32bitBE(0x08,streamFile) / 2 % vgmstream->interleave_block_size + 7) / 8 * 8;
|
||
|
|
|
||
|
|
dsp_read_coefs_be(vgmstream,streamFile,0x20, 0x60);
|
||
|
|
/* the initial history offset seems different thatn standard DSP and possibly always zero */
|
||
|
|
|
||
|
|
vgmstream->meta_type = meta_WII_04SW;
|
||
|
|
/* the rest of the header has unknown values (several repeats) and the filename */
|
||
|
|
|
||
|
|
|
||
|
|
/* open the file for reading */
|
||
|
|
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
return vgmstream;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
close_vgmstream(vgmstream);
|
||
|
|
return NULL;
|
||
|
|
}
|