mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-24 04:14:50 +01:00
48 lines
1.5 KiB
C
48 lines
1.5 KiB
C
#include "meta.h"
|
|
#include "../coding/coding.h"
|
|
|
|
/* UTK - from Maxis games [The Sims Online (PC), SimCity 4 (PC)] */
|
|
VGMSTREAM * init_vgmstream_utk(STREAMFILE *streamFile) {
|
|
VGMSTREAM * vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channel_count;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(streamFile, "utk"))
|
|
goto fail;
|
|
if (read_32bitBE(0x00,streamFile) != 0x55544D30) /* "UTM0" */
|
|
goto fail;
|
|
if (read_32bitLE(0x08,streamFile) != 0x14) /* header size? */
|
|
goto fail;
|
|
if (read_16bitLE(0x0c,streamFile) != 0x01) /* codec */
|
|
goto fail;
|
|
/* 0x14: avg bitrate, 0x18: PCM block size, 0x1a: PCM bits, 0x1c: extra size? */
|
|
|
|
channel_count = read_16bitLE(0x0e,streamFile);
|
|
if (channel_count > 1) goto fail; /* unknown */
|
|
loop_flag = 0;
|
|
start_offset = 0x20;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channel_count, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_UTK;
|
|
vgmstream->sample_rate = read_32bitLE(0x10, streamFile);
|
|
vgmstream->num_samples = read_32bitLE(0x04, streamFile) / 2; /* PCM size */
|
|
vgmstream->coding_type = coding_EA_MT;
|
|
vgmstream->layout_type = layout_none;
|
|
vgmstream->codec_data = init_ea_mt(vgmstream->channels, 0);
|
|
if (!vgmstream->codec_data) goto fail;
|
|
|
|
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|