mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 15:42:52 +01:00
86 lines
2.4 KiB
C
86 lines
2.4 KiB
C
|
#include "meta.h"
|
||
|
|
#include "../util.h"
|
||
|
|
|
||
|
|
/* STR (Final Fantasy: Crystal Chronicles) */
|
||
|
|
VGMSTREAM * init_vgmstream_ngc_ffcc_str(STREAMFILE *streamFile) {
|
||
|
|
VGMSTREAM * vgmstream = NULL;
|
||
|
|
char filename[260];
|
||
|
|
off_t start_offset;
|
||
|
|
int loop_flag;
|
||
|
|
int channel_count;
|
||
|
|
|
||
|
|
/* check extension, case insensitive */
|
||
|
|
streamFile->get_name(streamFile,filename,sizeof(filename));
|
||
|
|
if (strcasecmp("str",filename_extension(filename))) goto fail;
|
||
|
|
|
||
|
|
/* check header */
|
||
|
|
if (read_32bitBE(0x00,streamFile) != 0x53545200 || /* "STR\0" */
|
||
|
|
read_32bitBE(0x08,streamFile) != get_streamfile_size(streamFile) ||
|
||
|
|
read_32bitBE(0x10,streamFile) != -1) /* this might be loop point */
|
||
|
|
goto fail;
|
||
|
|
|
||
|
|
loop_flag = 0;
|
||
|
|
channel_count = read_32bitBE(0x18,streamFile);
|
||
|
|
|
||
|
|
/* build the VGMSTREAM */
|
||
|
|
vgmstream = allocate_vgmstream(channel_count,loop_flag);
|
||
|
|
if (!vgmstream) goto fail;
|
||
|
|
|
||
|
|
/* fill in the vital statistics */
|
||
|
|
start_offset = 0x1000;
|
||
|
|
vgmstream->channels = channel_count;
|
||
|
|
if (read_32bitBE(0x14,streamFile)==0)
|
||
|
|
vgmstream->sample_rate = 32000;
|
||
|
|
else
|
||
|
|
vgmstream->sample_rate = 44100;
|
||
|
|
vgmstream->coding_type = coding_NGC_DSP;
|
||
|
|
vgmstream->num_samples = read_32bitBE(0x0C,streamFile)*14;
|
||
|
|
|
||
|
|
if (channel_count > 1)
|
||
|
|
{
|
||
|
|
vgmstream->layout_type = layout_interleave;
|
||
|
|
vgmstream->interleave_block_size = 0x1000;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
vgmstream->layout_type = layout_none;
|
||
|
|
vgmstream->interleave_block_size = 0x1000;
|
||
|
|
}
|
||
|
|
vgmstream->meta_type = meta_FFCC_STR;
|
||
|
|
|
||
|
|
|
||
|
|
if (vgmstream->coding_type == coding_NGC_DSP) {
|
||
|
|
int c;
|
||
|
|
for (c=0;c<channel_count;c++)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
for (i=0;i<16;i++) {
|
||
|
|
vgmstream->ch[c].adpcm_coef[i] = read_16bitBE(0x20 + c * 0x2e + i * 2,streamFile);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/* open the file for reading */
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
STREAMFILE * file;
|
||
|
|
file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
|
||
|
|
if (!file) goto fail;
|
||
|
|
for (i=0;i<channel_count;i++) {
|
||
|
|
vgmstream->ch[i].streamfile = file;
|
||
|
|
|
||
|
|
vgmstream->ch[i].channel_start_offset=
|
||
|
|
vgmstream->ch[i].offset=start_offset+
|
||
|
|
vgmstream->interleave_block_size*i;
|
||
|
|
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
return vgmstream;
|
||
|
|
|
||
|
|
/* clean up anything we may have opened */
|
||
|
|
fail:
|
||
|
|
if (vgmstream) close_vgmstream(vgmstream);
|
||
|
|
return NULL;
|
||
|
|
}
|