vgmstream/src/meta/rsd.c
manakoAT 1d9a1e9579 .pcm added
.psw added
.rkv added
.vas added
.changes in .rsd


git-svn-id: https://vgmstream.svn.sourceforge.net/svnroot/vgmstream@372 51a99a44-fe44-0410-b1ba-c3e57ba2b86b
2008-07-25 17:49:09 +00:00

103 lines
2.7 KiB
C

#include "meta.h"
#include "../util.h"
/* RSD (Crash Bandicot games, possibly more) */
VGMSTREAM * init_vgmstream_rsd(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
off_t start_offset;
coding_t coding_type;
int loop_flag;
int channel_count;
int rsd_ident;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("rsd",filename_extension(filename))) goto fail;
/* check header */
if (read_32bitBE(0x0,streamFile) != 0x52534436 && /* RSD6 */
read_32bitBE(0x0,streamFile) != 0x52534434) /* RSD4 */
goto fail;
loop_flag = (read_16bitLE(0x12,streamFile)!=0);
channel_count = (read_32bitLE(0x8,streamFile));
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
rsd_ident = read_32bitBE(0x4,streamFile);
/* fill in the vital statistics */
switch (rsd_ident) {
case 0x56414720: /* RSD4VAG & RSD6VAG */
coding_type = coding_PSX;
vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile);
vgmstream->num_samples = (get_streamfile_size(streamFile)-0x800)*28/16/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = (uint16_t)(read_32bitLE(0x12,streamFile))*28/16/channel_count;
vgmstream->loop_end_sample = (get_streamfile_size(streamFile)-0x800)*28/16/channel_count;
}
break;
case 0x50434D20: /* RSD4PCM */
coding_type = coding_PCM16LE;
vgmstream->interleave_block_size = 0x2;
vgmstream->num_samples = (get_streamfile_size(streamFile)-0x800)/2/channel_count;
if (loop_flag) {
vgmstream->loop_start_sample = (uint16_t)(read_32bitLE(0x12,streamFile))/2/channel_count;;
vgmstream->loop_end_sample = (get_streamfile_size(streamFile)-0x800)/2/channel_count;
}
break;
case 0x584D4120: /* RSD6XMA */
goto fail;
default:
goto fail;
}
vgmstream->layout_type = layout_interleave;
vgmstream->meta_type = meta_RSD;
start_offset = 0x800;
vgmstream->channels = channel_count;
vgmstream->sample_rate = (uint16_t)read_16bitLE(0x10,streamFile);
vgmstream->coding_type = coding_type;
/* 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;
}