mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
#include "../layout/layout.h"
|
|
|
|
/* MUSC - from Krome's PS2 games (The Legend of Spyro, Ty the Tasmanian Tiger) */
|
|
VGMSTREAM* init_vgmstream_musc(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
int loop_flag, channels;
|
|
off_t start_offset;
|
|
size_t data_size;
|
|
|
|
|
|
/* checks */
|
|
/* .mus: actual extension
|
|
* .musc: header ID */
|
|
if (!check_extensions(sf,"mus,musc"))
|
|
goto fail;
|
|
if (!is_id32be(0x00,sf, "MUSC"))
|
|
goto fail;
|
|
|
|
start_offset = read_u32le(0x10,sf);
|
|
data_size = read_u32le(0x14,sf);
|
|
if (start_offset + data_size != get_streamfile_size(sf))
|
|
goto fail;
|
|
/* always does full loops unless it ends in silence */
|
|
loop_flag = read_u32be(get_streamfile_size(sf) - 0x10,sf) != 0x0C000000;
|
|
channels = 2;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = read_u16le(0x06,sf);
|
|
vgmstream->num_samples = ps_bytes_to_samples(data_size, channels);
|
|
vgmstream->loop_start_sample = 0;
|
|
vgmstream->loop_end_sample = vgmstream->num_samples;
|
|
|
|
vgmstream->meta_type = meta_MUSC;
|
|
vgmstream->coding_type = coding_PSX;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = read_u32le(0x18,sf) / 2;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|