mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-21 10:55:53 +01:00
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* WB - from Psychonauts (PS2) */
|
|
VGMSTREAM* init_vgmstream_pwb(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
int channels, loop_flag;
|
|
uint32_t stream_offset, stream_size, loop_start, loop_end;
|
|
|
|
|
|
/* checks */
|
|
if (!is_id32be(0x00, sf, "WB\2\0"))
|
|
return NULL;
|
|
|
|
/* .pwb: actual extension (bigfile has only hashes but there are names in internal files)
|
|
* (some .pwb have a companion .psb, seems cue-related) */
|
|
if (!check_extensions(sf, "pwb"))
|
|
return NULL;
|
|
|
|
/* 00: ID
|
|
* 04: null
|
|
* 08: header offset? (0x20)
|
|
* 0c: header size? (0x20)
|
|
* 10: entries offset
|
|
* 14: entries size
|
|
* 18: data offset
|
|
* 1c: data size
|
|
* 20: always 1 (channels? codec?)
|
|
* 24: entries count
|
|
* 28: entry size
|
|
* 2c: data offset
|
|
*/
|
|
|
|
|
|
stream_offset = read_u32le(0x18, sf);
|
|
|
|
int total_subsongs = read_s32le(0x24, sf);
|
|
int target_subsong = sf->stream_index;
|
|
if (target_subsong == 0) target_subsong = 1;
|
|
if (target_subsong > total_subsongs || total_subsongs <= 0) goto fail;
|
|
|
|
|
|
{
|
|
uint32_t offset = read_u32le(0x10, sf) + (target_subsong - 1) * read_u32le(0x28, sf);
|
|
|
|
/* 0x00: flags? */
|
|
/* 0x04: always 000AC449 */
|
|
stream_offset = read_u32le(offset + 0x08, sf) + stream_offset;
|
|
stream_size = read_u32le(offset + 0x0c, sf);
|
|
loop_start = read_u32le(offset + 0x10, sf);
|
|
loop_end = read_u32le(offset + 0x14, sf) + loop_start;
|
|
loop_flag = loop_end; /* both 0 if no loop */
|
|
channels = 1;
|
|
}
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_PWB;
|
|
vgmstream->sample_rate = 24000;
|
|
|
|
vgmstream->num_samples = ps_bytes_to_samples(stream_size, channels);
|
|
vgmstream->loop_start_sample = ps_bytes_to_samples(loop_start, channels);
|
|
vgmstream->loop_end_sample = ps_bytes_to_samples(loop_end, channels);
|
|
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_none;
|
|
vgmstream->num_streams = total_subsongs;
|
|
vgmstream->stream_size = stream_size;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, stream_offset))
|
|
goto fail;
|
|
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
close_streamfile(sf);
|
|
return NULL;
|
|
}
|