mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-18 17:35:53 +01:00
62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* ASD - found Naxat (Spiel/Mesa) games [Miss Moonlight (DC), Yoshia no Oka de Nekoronde... (DC)] */
|
|
VGMSTREAM* init_vgmstream_asd_naxat(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
uint32_t start_offset;
|
|
int loop_flag, channels, sample_rate;
|
|
|
|
|
|
/* checks */
|
|
uint32_t data_size = read_u32le(0x00, sf); /* padded and slightly less than file size */
|
|
if (data_size == 0 || data_size >= get_streamfile_size(sf) || data_size + 0x20 + 0x10 < get_streamfile_size(sf))
|
|
return NULL;
|
|
if (data_size != read_u32le(0x04,sf)) /* repeated size */
|
|
return NULL;
|
|
/* extension of the audio bigfiles (there are N offsets to these subfiles) */
|
|
if (!check_extensions(sf, "asd"))
|
|
return NULL;
|
|
|
|
/* fmt chunk, extra checks since format is simple */
|
|
if (read_u16le(0x08,sf) != 0x01) /* format*/
|
|
return NULL;
|
|
channels = read_u16le(0x0a,sf);
|
|
sample_rate = read_s32le(0x0c,sf);
|
|
|
|
if (channels < 1 || channels > 2)
|
|
return NULL;
|
|
if (sample_rate != 22050)
|
|
return NULL;
|
|
if (sample_rate * channels * sizeof(int16_t) != read_u32le(0x10,sf)) /* bitrate */
|
|
return NULL;
|
|
/* 04: block size, bps */
|
|
if (read_u32le(0x18,sf) != 0x00 )
|
|
return NULL;
|
|
if (read_u32le(0x1c,sf) != 0x00 )
|
|
return NULL;
|
|
|
|
start_offset = 0x20;
|
|
loop_flag = 0;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_ASD_NAXAT;
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->num_samples = pcm16_bytes_to_samples(data_size, channels);
|
|
|
|
vgmstream->coding_type = coding_PCM16LE;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x02;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|