Cool_Tools/vgmstream
1
0
Fork 0
mirror of https://github.com/vgmstream/vgmstream.git synced 2024-11-15 02:57:38 +01:00
Code Issues Packages Projects Releases Wiki Activity

Fix GCA being off by one sample in some cases, cleanup [BlowOut (GC)]

Browse Source
This commit is contained in:
bnnm 2018-03-11 20:30:32 +01:00
parent f525b46d20
commit 9062541aa2
1 changed files with 17 additions and 44 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

59
src/meta/gca.c
View File

@ -1,69 +1,42 @@
#include "meta.h"
#include "../coding/coding.h"
#include "../util.h"
/* GCA (from Metal Slug Anthology [Wii]) */
/* GCA - Terminal Reality games [Metal Slug Anthology (Wii), BlowOut (GC)] */
VGMSTREAM * init_vgmstream_gca(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[PATH_LIMIT];
off_t start_offset;
int loop_flag = 0;
int channel_count = 1;
int loop_flag, channel_count;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("gca",filename_extension(filename))) goto fail;
/* checks */
if (!check_extensions(streamFile, "gca"))
goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x47434131) /* "GCA1" */
goto fail;
start_offset = 0x40;
loop_flag = 0;
channel_count = 1;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = 0x40;
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitBE(0x2A,streamFile);
vgmstream->coding_type = coding_NGC_DSP;
vgmstream->num_samples = read_32bitBE(0x26,streamFile)*7/8;
if (loop_flag) {
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = read_32bitBE(0x26,streamFile)*7/8;
}
vgmstream->num_samples = dsp_nibbles_to_samples(read_32bitBE(0x26,streamFile));//read_32bitBE(0x26,streamFile)*7/8;
/* We have no interleave, so we have no layout */
vgmstream->layout_type = layout_none;
vgmstream->layout_type = layout_none; /* we have no interleave, so we have no layout */
vgmstream->meta_type = meta_GCA;
/* 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;
}
}
/*Retrieving the coef table */
{
int i;
for (i=0;i<16;i++) {
vgmstream->ch[0].adpcm_coef[i] = read_16bitBE(0x04+i*2,streamFile);
}
}
dsp_read_coefs_be(vgmstream,streamFile,0x04,0x00);
if (!vgmstream_open_stream(vgmstream,streamFile,start_offset))
goto fail;
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
close_vgmstream(vgmstream);
return NULL;
}