mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
#include "meta.h"
|
|
|
|
/* ADP - from Omikron: The Nomad Soul (PC/DC) */
|
|
VGMSTREAM* init_vgmstream_adp_qd(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
off_t start_offset, data_size;
|
|
int loop_flag = 0, channels, stereo_flag;
|
|
|
|
|
|
/* checks */
|
|
if (!check_extensions(sf,"adp"))
|
|
goto fail;
|
|
|
|
/* no ID, only a basic 0x10 header with filesize and nulls; do some extra checks */
|
|
data_size = read_u32le(0x00,sf) & 0x00FFFFFF; /*24 bit*/
|
|
if (data_size + 0x10 != sf->get_size(sf)
|
|
|| read_u32le(0x04,sf) != 0
|
|
|| read_u32le(0x08,sf) != 0
|
|
|| read_u32le(0x0c,sf) != 0)
|
|
goto fail;
|
|
|
|
stereo_flag = read_u8(0x03, sf);
|
|
if (stereo_flag > 1 || stereo_flag < 0) goto fail;
|
|
channels = stereo_flag ? 2 : 1;
|
|
start_offset = 0x10;
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->meta_type = meta_QD_ADP;
|
|
vgmstream->sample_rate = 22050;
|
|
vgmstream->num_samples = data_size * 2 / channels;
|
|
|
|
vgmstream->coding_type = coding_QD_IMA;
|
|
vgmstream->layout_type = layout_none;
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset))
|
|
goto fail;
|
|
return vgmstream;
|
|
|
|
fail:
|
|
close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|