mirror of
https://github.com/vgmstream/vgmstream.git
synced 2024-12-14 07:32:52 +01:00
112 lines
2.8 KiB
C
112 lines
2.8 KiB
C
#include "meta.h"
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#include "../util.h"
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//#include <windows.h>
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//#include <tchar.h>
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/* VBK (from Disney's Stitch - Experiment 626) */
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VGMSTREAM * init_vgmstream_ps2_vbk(STREAMFILE *streamFile)
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{
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VGMSTREAM * vgmstream = NULL;
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char filename[PATH_LIMIT];
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off_t start_offset;
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uint8_t testBuffer[0x10];
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off_t loopStart = 0;
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off_t loopEnd = 0;
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off_t readOffset = 0;
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size_t fileLength;
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int loop_flag;
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int channel_count;
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//_TCHAR szBuffer[100];
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/* check extension, case insensitive */
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streamFile->get_name(streamFile,filename,sizeof(filename));
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if (strcasecmp("vbk",filename_extension(filename))) goto fail;
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/* check header */
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if (read_32bitBE(0x00,streamFile) != 0x2E56424B) /* .VBK */
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goto fail;
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loop_flag = 1;
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channel_count = read_32bitLE(0x28,streamFile) + 1;
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//_stprintf(szBuffer, _T("%x"), channel_count);
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//MessageBox(NULL, szBuffer, _T("Foo"), MB_OK);
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channel_count,loop_flag);
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if (!vgmstream) goto fail;
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/* fill in the vital statistics */
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fileLength = get_streamfile_size(streamFile);
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start_offset = read_32bitLE(0x0C, streamFile);
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vgmstream->channels = channel_count;
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vgmstream->sample_rate = read_32bitLE(0x20,streamFile);
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vgmstream->coding_type = coding_PSX;
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vgmstream->num_samples = (fileLength - start_offset)*28/16/channel_count;
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// get loop start
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do {
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readOffset+=(off_t)read_streamfile(testBuffer,readOffset,0x10,streamFile);
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if(testBuffer[0x01]==0x06)
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{
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loopStart = readOffset-0x10;
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break;
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}
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} while (streamFile->get_offset(streamFile)<(int32_t)fileLength);
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// get loop end
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readOffset = fileLength - 0x10;
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do {
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readOffset-=(off_t)read_streamfile(testBuffer,readOffset,0x10,streamFile);
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/* Loop End */
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if(testBuffer[0x01]==0x03)
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{
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loopEnd = readOffset-0x10;
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break;
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}
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} while (readOffset > 0);
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loop_flag = 1;
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vgmstream->loop_start_sample = (loopStart-start_offset)*28/16/channel_count;
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vgmstream->loop_end_sample = (loopEnd-start_offset)*28/16/channel_count;
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vgmstream->layout_type = layout_interleave;
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vgmstream->interleave_block_size = read_32bitLE(0x24,streamFile);
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vgmstream->meta_type = meta_PS2_VBK;
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/* open the file for reading */
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{
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int i;
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STREAMFILE * file;
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file = streamFile->open(streamFile,filename,STREAMFILE_DEFAULT_BUFFER_SIZE);
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if (!file) goto fail;
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for (i=0;i<channel_count;i++)
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{
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vgmstream->ch[i].streamfile = file;
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vgmstream->ch[i].channel_start_offset=
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vgmstream->ch[i].offset=start_offset+
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vgmstream->interleave_block_size*i;
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}
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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 (vgmstream) close_vgmstream(vgmstream);
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return NULL;
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}
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