mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
88 lines
2.8 KiB
C
88 lines
2.8 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* BWAV - NintendoWare wavs [Super Mario Maker 2 (Switch)] */
|
|
VGMSTREAM* init_vgmstream_bwav(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
off_t start_offset;
|
|
int channels, loop_flag, codec, sample_rate;
|
|
int32_t num_samples, loop_start, loop_end;
|
|
size_t interleave = 0;
|
|
|
|
|
|
/* checks */
|
|
if (!is_id32be(0x00, sf, "BWAV"))
|
|
goto fail;
|
|
|
|
if (!check_extensions(sf, "bwav"))
|
|
goto fail;
|
|
|
|
/* 0x04: BOM (always 0xFEFF = LE) */
|
|
/* 0x06: version? (0x0001) */
|
|
/* 0x08: crc32? (supposedly from all channel data without padding) */
|
|
if (read_u16le(0x0c, sf) != 0x00) /* supposedly prefetch flag */
|
|
goto fail;
|
|
channels = read_u16le(0x0e, sf);
|
|
|
|
/* - per channel (size 0x4c) */
|
|
codec = read_u16le(0x10 + 0x00, sf);
|
|
/* 0x02: channel layout (0=L, 1=R, 2=C) */
|
|
sample_rate = read_s32le(0x10 + 0x04, sf);
|
|
/* 0x08: num_samples for full (non-prefetch) file? */
|
|
num_samples = read_s32le(0x10 + 0x0c, sf);
|
|
/* 0x10: coefs */
|
|
/* 0x30: offset for full (non-prefetch) file? */
|
|
start_offset = read_u32le(0x10 + 0x34, sf);
|
|
/* 0x38: flag? (always 1) */
|
|
loop_end = read_s32le(0x10 + 0x3C, sf);
|
|
loop_start = read_s32le(0x10 + 0x40, sf);
|
|
/* 0x44: start predictor? */
|
|
/* 0x46: hist1 sample? */
|
|
/* 0x48: hist2 sample? */
|
|
/* 0x4a: null? */
|
|
|
|
loop_flag = (loop_end != -1);
|
|
|
|
//TODO should make sure channels match and offsets make a proper interleave (see bfwav)
|
|
if (channels > 1)
|
|
interleave = read_u32le(0x8C, sf) - start_offset;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_BWAV;
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->num_samples = num_samples;
|
|
vgmstream->loop_start_sample = loop_start;
|
|
vgmstream->loop_end_sample = loop_end;
|
|
vgmstream->allow_dual_stereo = 1; /* Animal Crossing: Happy Home Paradise */
|
|
|
|
switch(codec) {
|
|
case 0x0000: /* Ring Fit Adventure (Switch) */
|
|
vgmstream->coding_type = coding_PCM16LE;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = interleave;
|
|
break;
|
|
|
|
case 0x0001: /* Super Mario Maker 2 (Switch) */
|
|
vgmstream->coding_type = coding_NGC_DSP;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = interleave;
|
|
dsp_read_coefs_le(vgmstream, sf, 0x20, 0x4C);
|
|
break;
|
|
|
|
default:
|
|
goto fail;
|
|
}
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|