vgmstream/src/meta/ps2_filp.c
manakoAT d0e8f74ba5 .filp added
.leg added
.ikm added

git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@330 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
2008-07-17 01:22:23 +00:00

68 lines
2.1 KiB
C

#include "meta.h"
#include "../util.h"
/* FILp (Resident Evil - Dead Aim) */
/* Only the modified files from MarkGrass are handled here, the original files
are in a blocked format! */
VGMSTREAM * init_vgmstream_filp(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset;
int loop_flag = 0;
int channel_count;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("filp",filename_extension(filename))) goto fail;
/* check header */
if (read_32bitBE(0x00,streamFile) != 0x47454D70) /* "GEMp" */
goto fail;
loop_flag = 0; /* (read_32bitLE(0x08,streamFile)!=0); */
channel_count = 2;
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
start_offset = read_32bitLE(0x08,streamFile);
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitLE(0x110,streamFile);
vgmstream->coding_type = coding_PSX;
vgmstream->num_samples = (read_32bitLE(0x10C,streamFile))*28/16/channel_count*2;
if (loop_flag) {
vgmstream->loop_start_sample = 0;
vgmstream->loop_end_sample = (read_32bitLE(0x10C,streamFile))*28/16/channel_count*2;
}
vgmstream->layout_type = layout_interleave;
vgmstream->interleave_block_size = (read_32bitLE(0x0C,streamFile)+start_offset)/2;
vgmstream->meta_type = meta_FILP;
/* 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;
}