mirror of
https://github.com/vgmstream/vgmstream.git
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55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
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#include <math.h>
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#include "ngc_adpdtk.h"
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#include "../util.h"
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VGMSTREAM * init_vgmstream_ngc_adpdtk(const char * const filename) {
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VGMSTREAM * vgmstream = NULL;
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STREAMFILE * infile = NULL;
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size_t file_size;
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int i;
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/* check extension, case insensitive */
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if (strcasecmp("adp",filename_extension(filename))) goto fail;
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/* try to open the file for checking */
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infile = open_streamfile(filename);
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if (!infile) goto fail;
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/* file size is the only way to determine sample count */
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file_size = get_streamfile_size(infile);
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/* .adp files have no header, so all we can do is look for a valid first frame */
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if (read_8bit(0,infile)!=read_8bit(2,infile) || read_8bit(1,infile)!=read_8bit(3,infile)) goto fail;
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/* done with checking */
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close_streamfile(infile);
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/* Hopefully we haven't falsely detected something else... */
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(2,0); /* always stereo, no loop */
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if (!vgmstream) goto fail;
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vgmstream->num_samples = file_size/32*28;
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vgmstream->sample_rate = 48000;
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vgmstream->coding_type = coding_NGC_DTK;
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vgmstream->layout_type = layout_dtk_interleave;
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vgmstream->meta_type = meta_NGC_ADPDTK;
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for (i=0;i<2;i++) {
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vgmstream->ch[i].channel_start_offset =
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vgmstream->ch[i].offset = 0;
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vgmstream->ch[i].streamfile = open_streamfile_buffer(filename,32*0x400);
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}
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return vgmstream;
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/* clean up anything we may have opened */
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fail:
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if (infile) close_streamfile(infile);
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if (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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