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113 lines
2.3 KiB
C++
113 lines
2.3 KiB
C++
#ifndef _AUDIODEC_H_
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#define _AUDIODEC_H_
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#include <eetypes.h>
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#ifndef __CORE_DEFINES_H
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#include <core/defines.h>
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#endif
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#include <core/macros.h>
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#include <core/singleton.h>
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// ///////////////////////////////////////////////////////
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//
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// Audio decoder state
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//
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#define AU_STATE_INIT 0
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#define AU_STATE_PRESET 1
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#define AU_STATE_PLAY 2
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#define AU_STATE_PAUSE 3
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#define AU_HDR_SIZE ( ( int )(sizeof(SpuStreamHeader) + sizeof(SpuStreamBody)) )
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// ///////////////////////////////////////////////////////
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//
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// Spu stream header
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//
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struct SpuStreamHeader{
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char id[4]; // 'S''S''h''d'
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int size; // 24
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int type; // 0: 16bit big endian
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// 1: 16bit little endian
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// 2: SPU2-ADPCM (VAG)
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int rate; // sampling rate
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int ch; // number of channels
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int interSize; // interleave size ... needs to be 512
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int loopStart; // loop start block address
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int loopEnd; // loop end block sddress
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};
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// ///////////////////////////////////////////////////////
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//
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// Spu stream body
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//
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struct SpuStreamBody{
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char id[4]; // 'S''S''b''d'
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int size; // size of audio data
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};
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// ///////////////////////////////////////////////////////
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//
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// Audio decoder
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//
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struct AudioDec{
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int state;
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// header of ADS format
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struct SpuStreamHeader sshd;
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struct SpuStreamBody ssbd;
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int hdrCount;
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// audio buffer
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u_char *data;
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int put;
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int count;
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int size;
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int totalBytes;
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// buffer on IOP
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int iopBuff;
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int iopBuffSize;
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int iopLastPos;
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int iopPausePos;
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int totalBytesSent;
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int iopZero;
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};
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namespace Flx
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{
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// ///////////////////////////////////////////////////////
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//
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// Functions
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//
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int audioDecCreate(
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struct AudioDec *ad,
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u_char *buff,
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int buffSize,
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int iopBuffSize,
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int pIopBuf
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);
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int audioDecDelete( struct AudioDec *ad);
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void audioDecBeginPut( struct AudioDec *ad,
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u_char **ptr0, int *len0, u_char **ptr1, int *len1);
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void audioDecEndPut(struct AudioDec *ad, int size);
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int audioDecIsPreset(struct AudioDec *ad);
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void audioDecStart(struct AudioDec *ad);
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int audioDecSendToIOP(struct AudioDec *ad);
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void audioDecReset(struct AudioDec *ad);
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void audioDecPause(struct AudioDec *ad);
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void audioDecResume(struct AudioDec *ad);
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} // namespace Flx
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#endif _AUDIODEC_H_
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