mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* MJB+MJH - SCEE MultiStream? bank of MIB+MIH [Star Wars: Bounty Hunter (PS2)] */
|
|
VGMSTREAM* init_vgmstream_mjb_mjh(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
STREAMFILE* sh = NULL;
|
|
STREAMFILE* sb = NULL;
|
|
off_t start_offset = 0, header_offset = 0;
|
|
size_t data_size, frame_size, frame_count;
|
|
int channels, loop_flag, sample_rate;
|
|
int total_subsongs, target_subsong = sf->stream_index;
|
|
|
|
|
|
/* for plugins that start with .mjb */
|
|
if (check_extensions(sf,"mjb")) {
|
|
sh = open_streamfile_by_ext(sf, "mjh");
|
|
if (!sh) goto fail;
|
|
}
|
|
else {
|
|
sh = sf;
|
|
}
|
|
|
|
/* checks */
|
|
/* "base" header check only has total subsongs, check expected header size */
|
|
if (read_s32le(0x00,sh) * 0x40 + 0x40 != get_streamfile_size(sh))
|
|
goto fail;
|
|
if (read_u32le(0x10,sh) != 0 || read_u32le(0x20,sh) != 0 || read_u32le(0x30,sh) != 0) /* padding until 0x40 */
|
|
goto fail;
|
|
|
|
/* only body for now */
|
|
if (!check_extensions(sf, "mjb"))
|
|
goto fail;
|
|
|
|
|
|
/* parse entries */
|
|
{
|
|
int i;
|
|
off_t subsong_offset = 0;
|
|
|
|
total_subsongs = read_s32le(0x00,sh);
|
|
if (target_subsong == 0) target_subsong = 1;
|
|
if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
|
|
|
|
for (i = 0; i < total_subsongs; i++) {
|
|
off_t offset = 0x40 + 0x40 * i;
|
|
size_t subsong_size = read_u32le(offset + 0x08,sh) * read_u32le(offset + 0x10,sh) * read_u32le(offset + 0x14,sh);
|
|
|
|
if (i + 1== target_subsong) {
|
|
header_offset = offset;
|
|
start_offset = subsong_offset;
|
|
}
|
|
subsong_offset += subsong_size;
|
|
}
|
|
|
|
if (!header_offset)
|
|
goto fail;
|
|
}
|
|
|
|
/* also see MIB+MIH (same thing but this excludes padding stuff) */
|
|
if (read_u32le(header_offset + 0x00,sh) != 0x40)
|
|
goto fail;
|
|
channels = read_u32le(header_offset + 0x08,sh);
|
|
sample_rate = read_u32le(header_offset + 0x0c,sh);
|
|
frame_size = read_u32le(header_offset + 0x10,sh);
|
|
frame_count = read_u32le(header_offset + 0x14,sh);
|
|
|
|
data_size = frame_count * frame_size * channels;
|
|
loop_flag = 0;
|
|
|
|
|
|
/* for plugins that start with .mjh (and don't check extensions) */
|
|
if (sf == sh) {
|
|
sb = open_streamfile_by_ext(sf, "mjb");
|
|
if (!sb) goto fail;
|
|
}
|
|
else {
|
|
sb = sf;
|
|
}
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_MJB_MJH;
|
|
vgmstream->sample_rate = sample_rate;
|
|
vgmstream->num_samples = ps_bytes_to_samples(data_size, channels);
|
|
|
|
vgmstream->num_streams = total_subsongs;
|
|
vgmstream->stream_size = data_size;
|
|
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = frame_size;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sb, start_offset))
|
|
goto fail;
|
|
if (sf != sh) close_streamfile(sh);
|
|
if (sf != sb) close_streamfile(sb);
|
|
return vgmstream;
|
|
|
|
fail:
|
|
if (sf != sh) close_streamfile(sh);
|
|
if (sf != sb) close_streamfile(sb);
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|