mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-19 09:55:53 +01:00
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
#include "meta.h"
|
|
|
|
/* DVI - from Konami KCE Nayoga SAT games (Castlevania Symphony of the Night, Jikkyou Oshaberi Parodius - Forever with Me) */
|
|
VGMSTREAM* init_vgmstream_sat_dvi(STREAMFILE* sf) {
|
|
VGMSTREAM* vgmstream = NULL;
|
|
off_t start_offset;
|
|
int loop_flag, channels;
|
|
|
|
/* checks
|
|
* .pcm: original
|
|
* .dvi: header id (to be removed )*/
|
|
if (!check_extensions(sf,"pcm,dvi"))
|
|
goto fail;
|
|
|
|
if (!is_id32be(0x00,sf, "DVI."))
|
|
goto fail;
|
|
|
|
start_offset = read_s32be(0x04,sf);
|
|
loop_flag = (read_s32be(0x0C,sf) != -1);
|
|
channels = 2; /* no mono files seem to exists */
|
|
|
|
|
|
/* build the VGMSTREAM */
|
|
vgmstream = allocate_vgmstream(channels, loop_flag);
|
|
if (!vgmstream) goto fail;
|
|
|
|
vgmstream->sample_rate = 44100;
|
|
vgmstream->num_samples = read_s32be(0x08,sf);
|
|
vgmstream->loop_start_sample = read_s32be(0x0C,sf);
|
|
vgmstream->loop_end_sample = read_s32be(0x08,sf);
|
|
|
|
vgmstream->coding_type = coding_DVI_IMA_int;
|
|
vgmstream->layout_type = layout_interleave;
|
|
vgmstream->interleave_block_size = 0x4;
|
|
vgmstream->meta_type = meta_SAT_DVI;
|
|
|
|
/* at 0x10 (L) / 0x20 (R): probably ADPCM loop history @+0x00 and step @+0x17 (not init values) */
|
|
|
|
if (!vgmstream_open_stream(vgmstream, sf, start_offset) )
|
|
goto fail;
|
|
|
|
/* for some reason right channel goes first (tested in SOTN vs emu and PS/OST version), swap offsets */
|
|
if (channels == 2) {
|
|
off_t temp = vgmstream->ch[0].offset;
|
|
vgmstream->ch[0].channel_start_offset =
|
|
vgmstream->ch[0].offset = vgmstream->ch[1].offset;
|
|
vgmstream->ch[1].channel_start_offset =
|
|
vgmstream->ch[1].offset = temp;
|
|
}
|
|
|
|
return vgmstream;
|
|
|
|
fail:
|
|
if (vgmstream) close_vgmstream(vgmstream);
|
|
return NULL;
|
|
}
|