#ifndef BUFFER_H#define BUFFER_H#include <inttypes.h>#include <qobject.h>#include <qlistbox.h>#include "sound.h"/* ---------------------------------------------------------------------- *//* *.wav I/O stolen from cdda2wav *//* Copyright (C) by Heiko Eissfeldt */typedef uint8_t   BYTE;typedef uint16_t  WORD;typedef uint32_t  DWORD;typedef uint32_t  FOURCC;	/* a four character code *//* flags for 'wFormatTag' field of WAVEFORMAT */#define WAVE_FORMAT_PCM 1/* MMIO macros */#define mmioFOURCC(ch0, ch1, ch2, ch3) \  ((DWORD)(BYTE)(ch0) | ((DWORD)(BYTE)(ch1) << 8) | \  ((DWORD)(BYTE)(ch2) << 16) | ((DWORD)(BYTE)(ch3) << 24))#define FOURCC_RIFF	mmioFOURCC ('R', 'I', 'F', 'F')#define FOURCC_LIST	mmioFOURCC ('L', 'I', 'S', 'T')#define FOURCC_WAVE	mmioFOURCC ('W', 'A', 'V', 'E')#define FOURCC_FMT	mmioFOURCC ('f', 'm', 't', ' ')#define FOURCC_DATA	mmioFOURCC ('d', 'a', 't', 'a')typedef struct CHUNKHDR {    FOURCC ckid;		/* chunk ID */    DWORD dwSize; 	        /* chunk size */} CHUNKHDR;/* simplified Header for standard WAV files */typedef struct WAVEHDR {    CHUNKHDR chkRiff;    FOURCC fccWave;    CHUNKHDR chkFmt;    WORD wFormatTag;	   /* format type */    WORD nChannels;	   /* number of channels (i.e. mono, stereo, etc.) */    DWORD nSamplesPerSec;  /* sample rate */    DWORD nAvgBytesPerSec; /* for buffer estimation */    WORD nBlockAlign;	   /* block size of data */    WORD wBitsPerSample;    CHUNKHDR chkData;} WAVEHDR;#define IS_STD_WAV_HEADER(waveHdr) ( \  waveHdr.chkRiff.ckid == FOURCC_RIFF && \  waveHdr.fccWave == FOURCC_WAVE && \  waveHdr.chkFmt.ckid == FOURCC_FMT && \  waveHdr.chkData.ckid == FOURCC_DATA && \  waveHdr.wFormatTag == WAVE_FORMAT_PCM)/* ---------------------------------------------------------------------- */class AudioBuffer {protected:    struct SOUNDPARAMS params;    int    size;    int    busy;    int    position;    public:    AudioBuffer();    virtual ~AudioBuffer();    int     clippedsamples;    int     is_busy();    void    balloc(void);    void    bfree(void);        virtual int  start_write(struct SOUNDPARAMS *p); /* write */    virtual void stop_write();                       /* can flush etc. */    virtual struct SOUNDPARAMS *get_params();   /* after recording or */    virtual int   get_size();                   /* for file readling */    virtual char *name();    virtual void *read_audio(int len);          /* no comment ... */    virtual int   write_audio(int len, void *data);    virtual int   seek(int pos);    virtual int   tell();};class RAMBuffer : public AudioBuffer {private:    char **buffers;    int  bufcount;    char bufname[32];    public:    RAMBuffer();    virtual ~RAMBuffer();        virtual int  start_write(struct SOUNDPARAMS *p);    virtual void stop_write();    virtual struct SOUNDPARAMS *get_params();    virtual int   get_size();    virtual char *name();    virtual void *read_audio(int len);    virtual int   write_audio(int len, void *data);    virtual int   seek(int pos);    virtual int   tell();    };class FileBuffer : public AudioBuffer {private:    int      fd,ro;    int      offset,bstart,bstop;    char     filename[256];    WAVEHDR  fileheader;    char     buffer[65536];    void     init_header();    int      parse_header();    public:    FileBuffer();    virtual ~FileBuffer();    int     attach(const char *file);    virtual int  start_write(struct SOUNDPARAMS *p);    virtual void stop_write();    virtual struct SOUNDPARAMS *get_params();    virtual int   get_size();    virtual char *name();    virtual void *read_audio(int len);    virtual int   write_audio(int len, void *data);    virtual int   seek(int pos);    virtual int   tell();    };/* -- functions -------------------------------------------------------- */class BufferList : public QObject {    Q_OBJECT;public:    BufferList(QListBox *l, Soundcard *c);    int add_filebuffer(const char *filename);    void save_buf(const char *filename);private:    QListBox     *listbox;    Soundcard    *card;    int           mon,level,wait;    struct        SOUNDPARAMS params;    AudioBuffer **buffers;    int           count,brecord,bplayback;    int           new_buffer_count;    int           add_rambuffer();    void          add_buffer(AudioBuffer *buf);    void          label_buffer(int buf);    void          del_buffer(int buf);    void          istop();    void          set_pos_size(const char *start, int buf);public slots:    void new_params(struct SOUNDPARAMS *params);    void new_data(void *data);    void post_data(void *data);    void new_ram();    void del_buf();    void set_level(int l);    void monitor();    void record();    void stop();    void play();    void forward();    void backward();    void next_buffer();signals:    void status(const char *text);};#endif