mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-22 03:15:54 +01:00
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
|
#include "meta.h"
|
||
|
|
#include "../coding/coding.h"
|
||
|
|
|
||
|
|
/* APC - from Cryo games [MegaRace 3 (PC)] */
|
||
|
|
VGMSTREAM * init_vgmstream_apc(STREAMFILE *streamFile) {
|
||
|
|
VGMSTREAM * vgmstream = NULL;
|
||
|
|
off_t start_offset;
|
||
|
|
size_t data_size;
|
||
|
|
int loop_flag, channel_count;
|
||
|
|
|
||
|
|
|
||
|
|
/* checks */
|
||
|
|
if ( !check_extensions(streamFile,"apc") )
|
||
|
|
goto fail;
|
||
|
|
if (read_32bitBE(0x00,streamFile) != 0x4352594F) /* "CRYO" */
|
||
|
|
goto fail;
|
||
|
|
if (read_32bitBE(0x04,streamFile) != 0x5F415043) /* "_APC" */
|
||
|
|
goto fail;
|
||
|
|
//if (read_32bitBE(0x08,streamFile) != 0x312E3230) /* "1.20" */
|
||
|
|
// goto fail;
|
||
|
|
|
||
|
|
/* 0x14/18: L/R hist sample? */
|
||
|
|
|
||
|
|
start_offset = 0x20;
|
||
|
|
data_size = get_streamfile_size(streamFile) - start_offset;
|
||
|
|
channel_count = read_32bitLE(0x1c,streamFile) == 0 ? 1 : 2;
|
||
|
|
loop_flag = 0;
|
||
|
|
|
||
|
|
|
||
|
|
/* build the VGMSTREAM */
|
||
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
||
|
|
if (!vgmstream) goto fail;
|
||
|
|
|
||
|
|
vgmstream->meta_type = meta_APC;
|
||
|
|
vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
|
||
|
|
vgmstream->num_samples = ima_bytes_to_samples(data_size,channel_count);
|
||
|
|
|
||
|
|
vgmstream->coding_type = coding_IMA;
|
||
|
|
vgmstream->layout_type = layout_none;
|
||
|
|
|
||
|
|
if ( !vgmstream_open_stream(vgmstream, streamFile, start_offset) )
|
||
|
|
goto fail;
|
||
|
|
return vgmstream;
|
||
|
|
|
||
|
|
fail:
|
||
|
|
close_vgmstream(vgmstream);
|
||
|
|
return NULL;
|
||
|
|
}
|