vgmstream/src/meta/ps2_int.c

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#include "meta.h"
#include "../util.h"
/* INT
PS2 INT format is a RAW 48khz PCM file without header
The only fact about those file, is that the raw is interleaved
The interleave value is allways 0x200
known extensions : INT
2008-05-11 - Fastelbja : First version ...
*/
VGMSTREAM * init_vgmstream_ps2_int(const char * const filename) {
VGMSTREAM * vgmstream = NULL;
STREAMFILE * infile = NULL;
int i;
/* check extension, case insensitive */
if (strcasecmp("int",filename_extension(filename))) goto fail;
/* try to open the file for header reading */
infile = open_streamfile(filename);
if (!infile) goto fail;
/* No check to do as they are raw pcm */
/* build the VGMSTREAM */
vgmstream = allocate_vgmstream(2,0);
if (!vgmstream) goto fail;
/* fill in the vital statistics */
vgmstream->channels = 2;
vgmstream->sample_rate = 48000;
vgmstream->coding_type = coding_PCM16LE;
vgmstream->num_samples = get_streamfile_size(infile)/4;
vgmstream->interleave_block_size = 0x200;
vgmstream->layout_type = layout_interleave;
vgmstream->meta_type = meta_PS2_RAW;
close_streamfile(infile); infile=NULL;
/* open the file for reading by each channel */
{
for (i=0;i<2;i++) {
vgmstream->ch[i].streamfile = open_streamfile_buffer(filename,0x8000);
if (!vgmstream->ch[i].streamfile) goto fail;
vgmstream->ch[i].channel_start_offset=
vgmstream->ch[i].offset=0;
}
}
return vgmstream;
/* clean up anything we may have opened */
fail:
if (infile) close_streamfile(infile);
if (vgmstream) close_vgmstream(vgmstream);
return NULL;
}