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#include "meta.h"
#include "../util.h"
/* WVS
WVS (found in Metal Arms - Glitch in the System)
*/
VGMSTREAM * init_vgmstream_xbox_wvs(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
int loop_flag=0;
int channel_count;
int i;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("wvs",filename_extension(filename))) goto fail;
if((read_16bitLE(0x0C,streamFile)!=0x69) &&
(read_16bitLE(0x08,streamFile)!=0x4400) &&
(read_32bitLE(0x0,streamFile)!=get_streamfile_size(streamFile)+0x20))
goto fail;
/* Loop seems to be set if offset(0x0A) == 0x472C */
loop_flag = (read_16bitLE(0x0A,streamFile)==0x472C);
/* Always stereo files */
channel_count=read_16bitLE(0x0E,streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
/* allways 2 channels @ 44100 Hz */
vgmstream->channels = channel_count;
vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
vgmstream->coding_type = coding_XBOX;
vgmstream->num_samples = read_32bitLE(0,streamFile) / 36 * 64 / vgmstream->channels;
vgmstream->layout_type = layout_none;
vgmstream->meta_type = meta_XBOX_WVS;
if(loop_flag) {
vgmstream->loop_start_sample=0;
vgmstream->loop_end_sample=vgmstream->num_samples;
}
/* open the file for reading by each channel */
{
for (i=0;i<channel_count;i++) {
vgmstream->ch[i].streamfile = streamFile->open(streamFile,filename,36);
vgmstream->ch[i].offset = 0x20;
if (!vgmstream->ch[i].streamfile) goto fail;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
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