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#include "meta.h"
#include "../util.h"
/* VPK */
VGMSTREAM * init_vgmstream_ps2_vpk(STREAMFILE *streamFile) {
VGMSTREAM * vgmstream = NULL;
char filename[260];
int loop_flag=0;
int channel_count;
off_t start_offset;
int i;
/* check extension, case insensitive */
streamFile->get_name(streamFile,filename,sizeof(filename));
if (strcasecmp("vpk",filename_extension(filename))) goto fail;
/* check VPK Header */
if (read_32bitBE(0x00,streamFile) != 0x204B5056)
goto fail;
/* check loop */
loop_flag = (read_32bitLE(0x7FC,streamFile)!=0);
channel_count=read_32bitLE(0x14,streamFile);
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(channel_count,loop_flag);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->channels = read_32bitLE(0x14,streamFile);
vgmstream->sample_rate = read_32bitLE(0x10,streamFile);
/* Check for Compression Scheme */
vgmstream->coding_type = coding_PSX;
vgmstream->num_samples = read_32bitLE(0x04,streamFile)/16*28;
/* Get loop point values */
if(vgmstream->loop_flag) {
vgmstream->loop_start_sample = read_32bitLE(0x7FC,streamFile);
vgmstream->loop_end_sample = vgmstream->num_samples;
}
vgmstream->interleave_block_size = read_32bitLE(0x0C,streamFile)/2;
vgmstream->layout_type = layout_interleave;
vgmstream->meta_type = meta_PS2_VPK;
start_offset = (off_t)read_32bitLE(0x08,streamFile);
/* 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=
(off_t)(start_offset+vgmstream->interleave_block_size*i);
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}
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