vgmstream/src/meta/msv.c
2022-01-12 21:13:56 +01:00

48 lines
1.2 KiB
C

#include "meta.h"
#include "../coding/coding.h"
/* MSV - from Sony MultiStream format [Fight Club (PS2), PoPcap Hits Vol. 1 (PS2)] */
VGMSTREAM* init_vgmstream_msv(STREAMFILE* sf) {
VGMSTREAM* vgmstream = NULL;
off_t start_offset;
size_t channel_size;
int loop_flag, channels;
if (!is_id32be(0x00,sf, "MSVp"))
goto fail;
/* checks */
/* .msv: actual extension
* .msvp: header ID */
if (!check_extensions(sf,"msv,msvp"))
goto fail;
channels = 1;
channel_size = read_u32be(0x0c,sf);
loop_flag = 0; /* no looping and last 16 bytes (end frame) are removed, from Sony's docs */
start_offset = 0x30;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channels, loop_flag);
if (!vgmstream) goto fail;
vgmstream->meta_type = meta_MSV;
vgmstream->sample_rate = read_u32be(0x10,sf);
vgmstream->num_samples = ps_bytes_to_samples(channel_size, 1);
vgmstream->coding_type = coding_PSX;
vgmstream->layout_type = layout_none;
read_string(vgmstream->stream_name,0x10+1, 0x20,sf);
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
goto fail;
return vgmstream;
fail:
close_vgmstream(vgmstream);
return NULL;
}