mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* MSB+MSH - SCEE MultiStream flat bank [namCollection: Ace Combat 2 (PS2) sfx, EyeToy Play (PS2)] */
|
|
VGMSTREAM * init_vgmstream_msb_msh(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
STREAMFILE * streamHeader = NULL;
|
|
off_t start_offset, header_offset = 0;
|
|
size_t stream_size;
|
|
int loop_flag = 0, channel_count, sample_rate;
|
|
int total_subsongs, target_subsong = streamFile->stream_index;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(streamFile, "msb"))
|
|
goto fail;
|
|
|
|
streamHeader = open_streamfile_by_ext(streamFile, "msh");
|
|
if (!streamHeader) goto fail;
|
|
|
|
if (read_32bitLE(0x00,streamHeader) != get_streamfile_size(streamHeader))
|
|
goto fail;
|
|
/* 0x04: unknown */
|
|
|
|
/* parse entries */
|
|
{
|
|
int i;
|
|
int entries = read_32bitLE(0x08,streamHeader);
|
|
|
|
total_subsongs = 0;
|
|
if (target_subsong == 0) target_subsong = 1;
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
if (read_32bitLE(0x0c + 0x10*i, streamHeader) == 0) /* size 0 = empty entry */
|
|
continue;
|
|
|
|
total_subsongs++;
|
|
if (total_subsongs == target_subsong && !header_offset) {
|
|
header_offset = 0x0c + 0x10*i;
|
|
}
|
|
}
|
|
|
|
if (!header_offset) goto fail;
|
|
if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
|
|
}
|
|
|
|
|
|
|
|
loop_flag = 0;
|
|
channel_count = 1;
|
|
|
|
stream_size = read_32bitLE(header_offset+0x00, streamHeader);
|
|
if (read_32bitLE(header_offset+0x04, streamHeader) != 0) /* stereo flag? */
|
|
goto fail;
|
|
start_offset = read_32bitLE(header_offset+0x08, streamHeader);
|
|
sample_rate = read_32bitLE(header_offset+0x0c, streamHeader); /* Ace Combat 2 seems to set wrong values but probably their bug */
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->num_samples = ps_bytes_to_samples(stream_size,channel_count);
|
|
|
|
vgmstream->num_streams = total_subsongs;
|
|
vgmstream->stream_size = stream_size;
|
|
vgmstream->meta_type = meta_MSB_MSH;
|
|
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x10;
|
|
|
|
|
|
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
|
|
goto fail;
|
|
|
|
close_streamfile(streamHeader);
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_streamfile(streamHeader);
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|