Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2024-11-29 00:34:33 +01:00
Code Issues Packages Projects Releases Wiki Activity

Minor cleanup

Browse Source
This commit is contained in:
bnnm 2018-04-18 21:03:24 +02:00
parent 97874749da
commit a8bb304998
1 changed files with 38 additions and 69 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

107
src/meta/ish_isd.c
View File

@ -1,91 +1,60 @@
#include "meta.h"
#include "../util.h"
/*
ISH+ISD
*/
#include "../coding/coding.h"
/* ISH+ISD - from various games [Chaos Field (GC), Pokemon XD - Gale of Darkness (GC)] */
VGMSTREAM * init_vgmstream_ish_isd(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * streamFileISH = NULL;
char filename[PATH_LIMIT];
char filenameISH[PATH_LIMIT];
int i;
int channel_count;
int loop_flag;
STREAMFILE * streamHeader = NULL;
off_t start_offset;
int channel_count, loop_flag;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("isd",filename_extension(filename))) goto fail;
strcpy(filenameISH,filename);
strcpy(filenameISH+strlen(filenameISH)-3,"ish");
streamFileISH = streamFile->open(streamFile,filenameISH,STREAMFILE_DEFAULT_BUFFER_SIZE);
if (!streamFileISH) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFileISH) != 0x495F5346) /* "I_SF" */
/* checks */
if (!check_extensions(streamFile, "isd"))
goto fail;
channel_count = read_32bitBE(0x14,streamFileISH);
loop_flag = (read_32bitBE(0x1C,streamFileISH) !=0);
streamHeader = open_streamfile_by_ext(streamFile,"ish");
if (!streamHeader) goto fail;
if (read_32bitBE(0x00,streamHeader) != 0x495F5346) /* "I_SF" */
goto fail;
channel_count = read_32bitBE(0x14,streamHeader);
loop_flag = (read_32bitBE(0x1C,streamHeader) != 0);
start_offset = 0;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0x08,streamFileISH);
vgmstream->num_samples=read_32bitBE(0x0C,streamFileISH);
vgmstream->coding_type = coding_NGC_DSP;
if(loop_flag) {
vgmstream->loop_start_sample = read_32bitBE(0x20,streamFileISH)*14/8/channel_count;
vgmstream->loop_end_sample = read_32bitBE(0x24,streamFileISH)*14/8/channel_count;
}
if (channel_count == 1) {
vgmstream->layout_type = layout_none;
} else if (channel_count == 2) {
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitBE(0x18,streamFileISH);
vgmstream->sample_rate = read_32bitBE(0x08,streamHeader);
vgmstream->num_samples = read_32bitBE(0x0C,streamHeader);
if (loop_flag) {
vgmstream->loop_start_sample = read_32bitBE(0x20,streamHeader)*14 / 0x08 /channel_count;
vgmstream->loop_end_sample = read_32bitBE(0x24,streamHeader)*14 / 0x08 / channel_count;
}
vgmstream->meta_type = meta_ISH_ISD;
/* open the file for reading by each channel */
{
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,vgmstream->interleave_block_size);
if (!vgmstream->ch[i].streamfile) goto fail;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=i*vgmstream->interleave_block_size;
}
}
if (vgmstream->coding_type == coding_NGC_DSP) {
int i;
for (i=0;i<16;i++) {
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x40+i*2,streamFileISH);
}
if (vgmstream->channels == 2) {
for (i=0;i<16;i++) {
vgmstream->ch[1].adpcm_coef[i] = read_16bitBE(0x80+i*2,streamFileISH);
}
}
vgmstream->coding_type = coding_NGC_DSP;
if (channel_count == 1) {
vgmstream->layout_type = layout_none;
} else {
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = read_32bitBE(0x18,streamHeader);
}
close_streamfile(streamFileISH); streamFileISH=NULL;
dsp_read_coefs_be(vgmstream,streamHeader,0x40,0x40);
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
close_streamfile(streamHeader);
return vgmstream;
/* clean up anything we may have opened */
fail:
if (streamFileISH) close_streamfile(streamFileISH);
if (vgmstream) close_vgmstream(vgmstream);
close_streamfile(streamHeader);
close_vgmstream(vgmstream);
return NULL;
}