unit Bass;
//я тут немного прошелся delet'ом...
interface

uses
  Windows;

const
  DW_ERROR = Cardinal(-1);
  QW_ERROR = Int64(-1);
  BASS_OK                 = 0;
 { BASS_ERROR_MEM          = 1;
  BASS_ERROR_FILEOPEN     = 2;
  BASS_ERROR_DRIVER       = 3;
  BASS_ERROR_BUFLOST      = 4;
  BASS_ERROR_HANDLE       = 5;    // invalid handle
  BASS_ERROR_FORMAT       = 6;    // unsupported sample format
  BASS_ERROR_POSITION     = 7;    // invalid playback position
  BASS_ERROR_INIT         = 8;    // BASS_Init has not been successfully called
  BASS_ERROR_START        = 9;    // BASS_Start has not been successfully called
  BASS_ERROR_ALREADY      = 14;   // already initialized/paused/whatever
  BASS_ERROR_NOPAUSE      = 16;   // not paused
  BASS_ERROR_NOCHAN       = 18;   // can't get a free channel
  BASS_ERROR_ILLTYPE      = 19;   // an illegal type was specified
  BASS_ERROR_ILLPARAM     = 20;   // an illegal parameter was specified
  BASS_ERROR_NO3D         = 21;   // no 3D support
  BASS_ERROR_NOEAX        = 22;   // no EAX support
  BASS_ERROR_DEVICE       = 23;   // illegal device number
  BASS_ERROR_NOPLAY       = 24;   // not playing
  BASS_ERROR_FREQ         = 25;   // illegal sample rate
  BASS_ERROR_NOTFILE      = 27;   // the stream is not a file stream
  BASS_ERROR_NOHW         = 29;   // no hardware voices available
  BASS_ERROR_EMPTY        = 31;   // the MOD music has no sequence data
  BASS_ERROR_NONET        = 32;   // no internet connection could be opened
  BASS_ERROR_CREATE       = 33;   // couldn't create the file
  BASS_ERROR_NOFX         = 34;   // effects are not enabled
  BASS_ERROR_PLAYING      = 35;   // the channel is playing
  BASS_ERROR_NOTAVAIL     = 37;   // requested data is not available
  BASS_ERROR_DECODE       = 38;   // the channel is a "decoding channel"
  BASS_ERROR_DX           = 39;   // a sufficient DirectX version is not installed
  BASS_ERROR_TIMEOUT      = 40;   // connection timedout
  BASS_ERROR_FILEFORM     = 41;   // unsupported file format
  BASS_ERROR_SPEAKER      = 42;   // unavailable speaker
  BASS_ERROR_UNKNOWN      = -1;   // some other mystery error
                       }
  // Initialization flags
  BASS_DEVICE_8BITS       = 1;    // use 8 bit resolution, else 16 bit
  BASS_DEVICE_MONO        = 2;    // use mono, else stereo
  BASS_DEVICE_3D          = 4;    // enable 3D functionality
  {
    If the BASS_DEVICE_3D flag is not specified when
    initilizing BASS, then the 3D flags (BASS_SAMPLE_3D
    and BASS_MUSIC_3D) are ignored when loading/creating
    a sample/stream/music.
  }
  BASS_DEVICE_LATENCY     = 256;  // calculate device latency (BASS_INFO struct)
  BASS_DEVICE_SPEAKERS    = 2048; // force enabling of speaker assignment

  // DirectSound interfaces (for use with BASS_GetDSoundObject)
  BASS_OBJECT_DS          = 1;   // IDirectSound
  BASS_OBJECT_DS3DL       = 2;   // IDirectSound3DListener

  // BASS_INFO flags (from DSOUND.H)
  DSCAPS_CONTINUOUSRATE   = $00000010;
  { supports all sample rates between min/maxrate }
  DSCAPS_EMULDRIVER       = $00000020;
  { device does NOT have hardware DirectSound support }
  DSCAPS_CERTIFIED        = $00000040;
  { device driver has been certified by Microsoft }
  {
    The following flags tell what type of samples are
    supported by HARDWARE mixing, all these formats are
    supported by SOFTWARE mixing
  }
  DSCAPS_SECONDARYMONO    = $00000100;     // mono
  DSCAPS_SECONDARYSTEREO  = $00000200;     // stereo
  DSCAPS_SECONDARY8BIT    = $00000400;     // 8 bit
  DSCAPS_SECONDARY16BIT   = $00000800;     // 16 bit

  // BASS_RECORDINFO flags (from DSOUND.H)
  DSCCAPS_EMULDRIVER = DSCAPS_EMULDRIVER;
  { device does NOT have hardware DirectSound recording support }
  DSCCAPS_CERTIFIED = DSCAPS_CERTIFIED;
  { device driver has been certified by Microsoft }

  // defines for formats field of BASS_RECORDINFO (from MMSYSTEM.H)
  WAVE_FORMAT_1M08       = $00000001;      // 11.025 kHz, Mono,   8-bit
  WAVE_FORMAT_1S08       = $00000002;      // 11.025 kHz, Stereo, 8-bit
  WAVE_FORMAT_1M16       = $00000004;      // 11.025 kHz, Mono,   16-bit
  WAVE_FORMAT_1S16       = $00000008;      // 11.025 kHz, Stereo, 16-bit
  WAVE_FORMAT_2M08       = $00000010;      // 22.05  kHz, Mono,   8-bit
  WAVE_FORMAT_2S08       = $00000020;      // 22.05  kHz, Stereo, 8-bit
  WAVE_FORMAT_2M16       = $00000040;      // 22.05  kHz, Mono,   16-bit
  WAVE_FORMAT_2S16       = $00000080;      // 22.05  kHz, Stereo, 16-bit
  WAVE_FORMAT_4M08       = $00000100;      // 44.1   kHz, Mono,   8-bit
  WAVE_FORMAT_4S08       = $00000200;      // 44.1   kHz, Stereo, 8-bit
  WAVE_FORMAT_4M16       = $00000400;      // 44.1   kHz, Mono,   16-bit
  WAVE_FORMAT_4S16       = $00000800;      // 44.1   kHz, Stereo, 16-bit

  // Sample info flags
  BASS_SAMPLE_8BITS       = 1;   // 8 bit
  BASS_SAMPLE_FLOAT       = 256; // 32-bit floating-point
  BASS_SAMPLE_MONO        = 2;   // mono, else stereo
  BASS_SAMPLE_LOOP        = 4;   // looped
  BASS_SAMPLE_3D          = 8;   // 3D functionality enabled
  BASS_SAMPLE_SOFTWARE    = 16;  // it's NOT using hardware mixing
  BASS_SAMPLE_MUTEMAX     = 32;  // muted at max distance (3D only)
  BASS_SAMPLE_VAM         = 64;  // uses the DX7 voice allocation & management
  BASS_SAMPLE_FX          = 128; // old implementation of DX8 effects are enabled
  BASS_SAMPLE_OVER_VOL    = $10000; // override lowest volume
  BASS_SAMPLE_OVER_POS    = $20000; // override longest playing
  BASS_SAMPLE_OVER_DIST   = $30000; // override furthest from listener (3D only)

  BASS_MP3_SETPOS         = $20000; // enable pin-point seeking on the MP3/MP2/MP1

  BASS_STREAM_AUTOFREE	  = $40000; // automatically free the stream when it stop/ends
  BASS_STREAM_RESTRATE	  = $80000; // restrict the download rate of internet file streams
  BASS_STREAM_BLOCK       = $100000;// download/play internet file stream in small blocks
  BASS_STREAM_DECODE      = $200000;// don't play the stream, only decode (BASS_ChannelGetData)
  BASS_STREAM_META        = $400000;// request metadata from a Shoutcast stream
  BASS_STREAM_STATUS      = $800000;// give server status info (HTTP/ICY tags) in DOWNLOADPROC

  BASS_MUSIC_FLOAT        = BASS_SAMPLE_FLOAT; // 32-bit floating-point
  BASS_MUSIC_MONO         = BASS_SAMPLE_MONO; // force mono mixing (less CPU usage)
  BASS_MUSIC_LOOP         = BASS_SAMPLE_LOOP; // loop music
  BASS_MUSIC_3D           = BASS_SAMPLE_3D; // enable 3D functionality
  BASS_MUSIC_FX           = BASS_SAMPLE_FX; // enable old implementation of DX8 effects
  BASS_MUSIC_AUTOFREE     = BASS_STREAM_AUTOFREE; // automatically free the music when it stop/ends
  BASS_MUSIC_DECODE       = BASS_STREAM_DECODE; // don't play the music, only decode (BASS_ChannelGetData)
  BASS_MUSIC_RAMP         = $200;  // normal ramping
  BASS_MUSIC_RAMPS        = $400;  // sensitive ramping
  BASS_MUSIC_SURROUND     = $800;  // surround sound
  BASS_MUSIC_SURROUND2    = $1000; // surround sound (mode 2)
  BASS_MUSIC_FT2MOD       = $2000; // play .MOD as FastTracker 2 does
  BASS_MUSIC_PT1MOD       = $4000; // play .MOD as ProTracker 1 does
  BASS_MUSIC_CALCLEN      = $8000; // calculate playback length
  BASS_MUSIC_NONINTER     = $10000; // non-interpolated mixing
  BASS_MUSIC_POSRESET     = $20000; // stop all notes when moving position
  BASS_MUSIC_POSRESETEX   = $400000; // stop all notes and reset bmp/etc when moving position
  BASS_MUSIC_STOPBACK     = $80000; // stop the music on a backwards jump effect
  BASS_MUSIC_NOSAMPLE     = $100000; // don't load the samples

  // Speaker assignment flags
  BASS_SPEAKER_FRONT      = $1000000;  // front speakers
  BASS_SPEAKER_REAR       = $2000000;  // rear/side speakers
  BASS_SPEAKER_CENLFE     = $3000000;  // center & LFE speakers (5.1)
  BASS_SPEAKER_REAR2      = $4000000;  // rear center speakers (7.1)
  BASS_SPEAKER_LEFT       = $10000000; // modifier: left
  BASS_SPEAKER_RIGHT      = $20000000; // modifier: right
  BASS_SPEAKER_FRONTLEFT  = BASS_SPEAKER_FRONT or BASS_SPEAKER_LEFT;
  BASS_SPEAKER_FRONTRIGHT = BASS_SPEAKER_FRONT or BASS_SPEAKER_RIGHT;
  BASS_SPEAKER_REARLEFT   = BASS_SPEAKER_REAR or BASS_SPEAKER_LEFT;
  BASS_SPEAKER_REARRIGHT  = BASS_SPEAKER_REAR or BASS_SPEAKER_RIGHT;
  BASS_SPEAKER_CENTER     = BASS_SPEAKER_CENLFE or BASS_SPEAKER_LEFT;
  BASS_SPEAKER_LFE        = BASS_SPEAKER_CENLFE or BASS_SPEAKER_RIGHT;
  BASS_SPEAKER_REAR2LEFT  = BASS_SPEAKER_REAR2 or BASS_SPEAKER_LEFT;
  BASS_SPEAKER_REAR2RIGHT = BASS_SPEAKER_REAR2 or BASS_SPEAKER_RIGHT;

  BASS_UNICODE            = $80000000;

  BASS_RECORD_PAUSE       = $8000; // start recording paused

  // DX7 voice allocation flags
  BASS_VAM_HARDWARE       = 1;
  {
    Play the sample in hardware. If no hardware voices are available then
    the "play" call will fail
  }
  BASS_VAM_SOFTWARE       = 2;
  {
    Play the sample in software (ie. non-accelerated). No other VAM flags
    may be used together with this flag.
  }

  // DX7 voice management flags
  {
    These flags enable hardware resource stealing... if the hardware has no
    available voices, a currently playing buffer will be stopped to make room
    for the new buffer. NOTE: only samples loaded/created with the
    BASS_SAMPLE_VAM flag are considered for termination by the DX7 voice
    management.
  }
  BASS_VAM_TERM_TIME      = 4;
  {
    If there are no free hardware voices, the buffer to be terminated will be
    the one with the least time left to play.
  }
  BASS_VAM_TERM_DIST      = 8;
  {
    If there are no free hardware voices, the buffer to be terminated will be
    one that was loaded/created with the BASS_SAMPLE_MUTEMAX flag and is
    beyond
    it's max distance. If there are no buffers that match this criteria, then
    the "play" call will fail.
  }
  BASS_VAM_TERM_PRIO      = 16;
  {
    If there are no free hardware voices, the buffer to be terminated will be
    the one with the lowest priority.
  }

  // BASS_CHANNELINFO types
  BASS_CTYPE_SAMPLE       = 1;
  BASS_CTYPE_RECORD       = 2;
  BASS_CTYPE_STREAM       = $10000;
  BASS_CTYPE_STREAM_WAV   = $10001;
  BASS_CTYPE_STREAM_OGG   = $10002;
  BASS_CTYPE_STREAM_MP1   = $10003;
  BASS_CTYPE_STREAM_MP2   = $10004;
  BASS_CTYPE_STREAM_MP3   = $10005;
  BASS_CTYPE_MUSIC_MOD    = $20000;
  BASS_CTYPE_MUSIC_MTM    = $20001;
  BASS_CTYPE_MUSIC_S3M    = $20002;
  BASS_CTYPE_MUSIC_XM     = $20003;
  BASS_CTYPE_MUSIC_IT     = $20004;
  BASS_CTYPE_MUSIC_MO3    = $00100; // mo3 flag

  // 3D channel modes
  BASS_3DMODE_NORMAL      = 0;
  { normal 3D processing }
  BASS_3DMODE_RELATIVE    = 1;
  {
    The channel's 3D position (position/velocity/
    orientation) are relative to the listener. When the
    listener's position/velocity/orientation is changed
    with BASS_Set3DPosition, the channel's position
    relative to the listener does not change.
  }
  BASS_3DMODE_OFF         = 2;
  {
    Turn off 3D processing on the channel, the sound will
    be played in the center.
  }

  // EAX environments, use with BASS_SetEAXParameters
  EAX_ENVIRONMENT_OFF               = -1;
  EAX_ENVIRONMENT_GENERIC           = 0;
  EAX_ENVIRONMENT_PADDEDCELL        = 1;
  EAX_ENVIRONMENT_ROOM              = 2;
  EAX_ENVIRONMENT_BATHROOM          = 3;
  EAX_ENVIRONMENT_LIVINGROOM        = 4;
  EAX_ENVIRONMENT_STONEROOM         = 5;
  EAX_ENVIRONMENT_AUDITORIUM        = 6;
  EAX_ENVIRONMENT_CONCERTHALL       = 7;
  EAX_ENVIRONMENT_CAVE              = 8;
  EAX_ENVIRONMENT_ARENA             = 9;
  EAX_ENVIRONMENT_HANGAR            = 10;
  EAX_ENVIRONMENT_CARPETEDHALLWAY   = 11;
  EAX_ENVIRONMENT_HALLWAY           = 12;
  EAX_ENVIRONMENT_STONECORRIDOR     = 13;
  EAX_ENVIRONMENT_ALLEY             = 14;
  EAX_ENVIRONMENT_FOREST            = 15;
  EAX_ENVIRONMENT_CITY              = 16;
  EAX_ENVIRONMENT_MOUNTAINS         = 17;
  EAX_ENVIRONMENT_QUARRY            = 18;
  EAX_ENVIRONMENT_PLAIN             = 19;
  EAX_ENVIRONMENT_PARKINGLOT        = 20;
  EAX_ENVIRONMENT_SEWERPIPE         = 21;
  EAX_ENVIRONMENT_UNDERWATER        = 22;
  EAX_ENVIRONMENT_DRUGGED           = 23;
  EAX_ENVIRONMENT_DIZZY             = 24;
  EAX_ENVIRONMENT_PSYCHOTIC         = 25;
  // total number of environments
  EAX_ENVIRONMENT_COUNT             = 26;

  // software 3D mixing algorithm modes (used with BASS_Set3DAlgorithm)
  BASS_3DALG_DEFAULT                = 0;
  {
    default algorithm (currently translates to BASS_3DALG_OFF)
  }
  BASS_3DALG_OFF                    = 1;
  {
    Uses normal left and right panning. The vertical axis is ignored except
    for scaling of volume due to distance. Doppler shift and volume scaling
    are still applied, but the 3D filtering is not performed. This is the
    most CPU efficient software implementation, but provides no virtual 3D
    audio effect. Head Related Transfer Function processing will not be done.
    Since only normal stereo panning is used, a channel using this algorithm
    may be accelerated by a 2D hardware voice if no free 3D hardware voices
    are available.
  }
  BASS_3DALG_FULL                   = 2;
  {
    This algorithm gives the highest quality 3D audio effect, but uses more
    CPU. Requires Windows 98 2nd Edition or Windows 2000 that uses WDM
    drivers, if this mode is not available then BASS_3DALG_OFF will be used
    instead.
  }
  BASS_3DALG_LIGHT                  = 3;
  {
    This algorithm gives a good 3D audio effect, and uses less CPU than the
    FULL mode. Requires Windows 98 2nd Edition or Windows 2000 that uses WDM
    drivers, if this mode is not available then BASS_3DALG_OFF will be used
    instead.
  }

  {
    Sync types (with BASS_ChannelSetSync() "param" and
    SYNCPROC "data" definitions) & flags.
  }
  BASS_SYNC_POS                     = 0;
  BASS_SYNC_MUSICPOS                = 0;
  {
    Sync when a music or stream reaches a position.
    if HMUSIC...
    param: LOWORD=order (0=first, -1=all) HIWORD=row (0=first, -1=all)
    data : LOWORD=order HIWORD=row
    if HSTREAM...
    param: position in bytes
    data : not used
  }
  BASS_SYNC_MUSICINST               = 1;
  {
    Sync when an instrument (sample for the non-instrument
    based formats) is played in a music (not including
    retrigs).
    param: LOWORD=instrument (1=first) HIWORD=note (0=c0...119=b9, -1=all)
    data : LOWORD=note HIWORD=volume (0-64)
  }
  BASS_SYNC_END                     = 2;
  {
    Sync when a music or file stream reaches the end.
    param: not used
    data : not used
  }
  BASS_SYNC_MUSICFX                 = 3;
  {
    Sync when the "sync" effect (XM/MTM/MOD: E8x/Wxx, IT/S3M: S2x) is used.
    param: 0:data=pos, 1:data="x" value
    data : param=0: LOWORD=order HIWORD=row, param=1: "x" value
  }
  BASS_SYNC_META                    = 4;
  {
    Sync when metadata is received in a Shoutcast stream.
    param: not used
    data : pointer to the metadata
  }
  BASS_SYNC_SLIDE                   = 5;
  {
    Sync when an attribute slide is completed.
    param: not used
    data : the type of slide completed (one of the BASS_SLIDE_xxx values)
  }
  BASS_SYNC_STALL                   = 6;
  {
    Sync when playback has stalled.
    param: not used
    data : 0=stalled, 1=resumed
  }
  BASS_SYNC_DOWNLOAD                = 7;
  {
    Sync when downloading of an internet (or "buffered" user file) stream has ended.
    param: not used
    data : not used
  }
  BASS_SYNC_FREE                    = 8;
  {
    Sync when a channel is freed.
    param: not used
    data : not used
  }
  BASS_SYNC_MESSAGE                 = $20000000;
  { FLAG: post a Windows message (instead of callback)
    When using a window message "callback", the message to post is given in the "proc"
    parameter of BASS_ChannelSetSync, and is posted to the window specified in the BASS_Init
    call. The message parameters are: WPARAM = data, LPARAM = user.
  }
  BASS_SYNC_MIXTIME                 = $40000000;
  { FLAG: sync at mixtime, else at playtime }
  BASS_SYNC_ONETIME                 = $80000000;
  { FLAG: sync only once, else continuously }

  // BASS_ChannelIsActive return values
  BASS_ACTIVE_STOPPED = 0;
  BASS_ACTIVE_PLAYING = 1;
  BASS_ACTIVE_STALLED = 2;
  BASS_ACTIVE_PAUSED  = 3;

  // BASS_ChannelIsSliding return flags
  BASS_SLIDE_FREQ     = 1;
  BASS_SLIDE_VOL      = 2;
  BASS_SLIDE_PAN      = 4;

  // BASS_ChannelGetData flags
  BASS_DATA_AVAILABLE = 0;        // query how much data is buffered
  BASS_DATA_FFT512   = $80000000; // 512 sample FFT
  BASS_DATA_FFT1024  = $80000001; // 1024 FFT
  BASS_DATA_FFT2048  = $80000002; // 2048 FFT
  BASS_DATA_FFT4096  = $80000003; // 4096 FFT
  BASS_DATA_FFT_INDIVIDUAL = $10; // FFT flag: FFT for each channel, else all combined
  BASS_DATA_FFT_NOWINDOW = $20;   // FFT flag: no Hanning window

  // BASS_StreamGetTags flags : what's returned
  BASS_TAG_ID3   = 0; // ID3v1 tags : 128 byte block
  BASS_TAG_ID3V2 = 1; // ID3v2 tags : variable length block
  BASS_TAG_OGG   = 2; // OGG comments : array of null-terminated strings
  BASS_TAG_HTTP  = 3; // HTTP headers : array of null-terminated strings
  BASS_TAG_ICY   = 4; // ICY headers : array of null-terminated strings
  BASS_TAG_META  = 5; // ICY metadata : null-terminated string

  BASS_FX_CHORUS      = 0;      // GUID_DSFX_STANDARD_CHORUS
  BASS_FX_COMPRESSOR  = 1;      // GUID_DSFX_STANDARD_COMPRESSOR
  BASS_FX_DISTORTION  = 2;      // GUID_DSFX_STANDARD_DISTORTION
  BASS_FX_ECHO        = 3;      // GUID_DSFX_STANDARD_ECHO
  BASS_FX_FLANGER     = 4;      // GUID_DSFX_STANDARD_FLANGER
  BASS_FX_GARGLE      = 5;      // GUID_DSFX_STANDARD_GARGLE
  BASS_FX_I3DL2REVERB = 6;      // GUID_DSFX_STANDARD_I3DL2REVERB
  BASS_FX_PARAMEQ     = 7;      // GUID_DSFX_STANDARD_PARAMEQ
  BASS_FX_REVERB      = 8;      // GUID_DSFX_WAVES_REVERB

  BASS_FX_PHASE_NEG_180 = 0;
  BASS_FX_PHASE_NEG_90  = 1;
  BASS_FX_PHASE_ZERO    = 2;
  BASS_FX_PHASE_90      = 3;
  BASS_FX_PHASE_180     = 4;

  // BASS_RecordSetInput flags
  BASS_INPUT_OFF    = $10000;
  BASS_INPUT_ON     = $20000;
  BASS_INPUT_LEVEL  = $40000;

  BASS_INPUT_TYPE_MASK    = $ff000000;
  BASS_INPUT_TYPE_UNDEF   = $00000000;
  BASS_INPUT_TYPE_DIGITAL = $01000000;
  BASS_INPUT_TYPE_LINE    = $02000000;
  BASS_INPUT_TYPE_MIC     = $03000000;
  BASS_INPUT_TYPE_SYNTH   = $04000000;
  BASS_INPUT_TYPE_CD      = $05000000;
  BASS_INPUT_TYPE_PHONE   = $06000000;
  BASS_INPUT_TYPE_SPEAKER = $07000000;
  BASS_INPUT_TYPE_WAVE    = $08000000;
  BASS_INPUT_TYPE_AUX     = $09000000;
  BASS_INPUT_TYPE_ANALOG  = $0a000000;

  // BASS_SetNetConfig flags
  BASS_NET_TIMEOUT  = 0;
  BASS_NET_BUFFER   = 1;

  // BASS_StreamGetFilePosition modes
  BASS_FILEPOS_DECODE     = 0;
  BASS_FILEPOS_DOWNLOAD   = 1;
  BASS_FILEPOS_END        = 2;

  // STREAMFILEPROC actions
  BASS_FILE_CLOSE   = 0;
  BASS_FILE_READ    = 1;
  BASS_FILE_QUERY   = 2;
  BASS_FILE_LEN     = 3;
  BASS_FILE_SEEK    = 4;

  BASS_STREAMPROC_END = $80000000; // end of user stream flag

  // BASS_MusicSet/GetAttribute options
  BASS_MUSIC_ATTRIB_AMPLIFY    = 0;
  BASS_MUSIC_ATTRIB_PANSEP     = 1;
  BASS_MUSIC_ATTRIB_PSCALER    = 2;
  BASS_MUSIC_ATTRIB_BPM        = 3;
  BASS_MUSIC_ATTRIB_SPEED      = 4;
  BASS_MUSIC_ATTRIB_VOL_GLOBAL = 5;
  BASS_MUSIC_ATTRIB_VOL_CHAN   = $100; // + channel #
  BASS_MUSIC_ATTRIB_VOL_INST   = $200; // + instrument #

  // BASS_Set/GetConfig options
  BASS_CONFIG_BUFFER        = 0;
  BASS_CONFIG_UPDATEPERIOD  = 1;
  BASS_CONFIG_MAXVOL        = 3;
  BASS_CONFIG_GVOL_SAMPLE   = 4;
  BASS_CONFIG_GVOL_STREAM   = 5;
  BASS_CONFIG_GVOL_MUSIC    = 6;
  BASS_CONFIG_CURVE_VOL     = 7;
  BASS_CONFIG_CURVE_PAN     = 8;
  BASS_CONFIG_FLOATDSP      = 9;
  BASS_CONFIG_3DALGORITHM   = 10;
  BASS_CONFIG_NET_TIMEOUT   = 11;
  BASS_CONFIG_NET_BUFFER    = 12;
  BASS_CONFIG_PAUSE_NOPLAY  = 13;
  BASS_CONFIG_NET_NOPROXY   = 14;

type
  DWORD = cardinal;
  BOOL = LongBool;
  FLOAT = Single;
  QWORD = int64;        // 64-bit (replace "int64" with "comp" if using Delphi 3)

  HMUSIC = DWORD;       // MOD music handle
  HSAMPLE = DWORD;      // sample handle
  HCHANNEL = DWORD;     // playing sample's channel handle
  HSTREAM = DWORD;      // sample stream handle
  HRECORD = DWORD;      // recording handle
  HSYNC = DWORD;        // synchronizer handle
  HDSP = DWORD;         // DSP handle
  HFX = DWORD;          // DX8 effect handle


  BASS_CHANNELINFO = record
	freq: DWORD;
	chans: DWORD;
	flags: DWORD;
	ctype: DWORD;
	origres: DWORD;
  end;

  BASS_SAMPLE = record
    freq: DWORD;
    volume: DWORD;
    pan: Integer;
    flags: DWORD;
    length: DWORD;
    max: DWORD;
  	origres: DWORD;
    mode3d: DWORD;
    mindist: FLOAT;
    maxdist: FLOAT;
    iangle: DWORD;
    oangle: DWORD;
    outvol: DWORD;

    vam: DWORD;
    priority: DWORD;
  end;


  STREAMPROC = function(handle: HSTREAM; buffer: Pointer; length: DWORD; user: DWORD): DWORD; stdcall;
  STREAMFILEPROC = function(action, param1, param2, user: DWORD): DWORD; stdcall;
  DOWNLOADPROC = procedure(buffer: Pointer; length: DWORD; user: DWORD); stdcall;
  SYNCPROC = procedure(handle: HSYNC; channel, data: DWORD; user: DWORD); stdcall;
  DSPPROC = procedure(handle: HDSP; channel: DWORD; buffer: Pointer; length: DWORD; user: DWORD); stdcall;

const
bassdll = 'bass.dll';

function BASS_SetConfig(option, value: DWORD): DWORD; stdcall; external bassdll;
function BASS_Init(device: Integer; freq, flags: DWORD; win: HWND; clsid: PGUID): BOOL; stdcall; external bassdll;
function BASS_Free: BOOL; stdcall; external bassdll;
function BASS_StreamCreate(freq, chans, flags: DWORD; proc: Pointer; user: DWORD): HSTREAM; stdcall; external bassdll;
function BASS_StreamCreateFile(mem: BOOL; f: Pointer; offset, length, flags: DWORD): HSTREAM; stdcall; external bassdll;
function BASS_StreamCreateURL(URL:PChar; offset:DWORD; flags:DWORD; proc:DOWNLOADPROC; user:DWORD):HSTREAM; stdcall; external bassdll;
function BASS_StreamCreateFileUser(buffered: BOOL; flags: DWORD; proc:STREAMFILEPROC; user:DWORD): HSTREAM; stdcall; external bassdll;
procedure BASS_StreamFree(handle: HSTREAM); stdcall; external bassdll;
function BASS_StreamGetLength(handle: HSTREAM): QWORD; stdcall; external bassdll;
function BASS_StreamGetTags(handle: HSTREAM; tags : DWORD): PChar; stdcall; external bassdll;
function BASS_StreamGetFilePosition(handle:HSTREAM; mode:DWORD) : DWORD;stdcall;external bassdll;
function BASS_ChannelBytes2Seconds(handle: DWORD; pos: QWORD): FLOAT; stdcall;external bassdll;
function BASS_ChannelSeconds2Bytes(handle: DWORD; pos: FLOAT): QWORD; stdcall;external bassdll;
function BASS_ChannelGetDevice(handle: DWORD): DWORD; stdcall; external bassdll;
function BASS_ChannelIsActive(handle: DWORD): DWORD; stdcall;external bassdll;
function BASS_ChannelGetInfo(handle: DWORD; var info:BASS_CHANNELINFO):BOOL;stdcall;external bassdll;
function BASS_ChannelSetFlags(handle, flags: DWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelPreBuf(handle: DWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelPlay(handle: DWORD; restart: BOOL): BOOL; stdcall; external bassdll;
function BASS_ChannelStop(handle: DWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelPause(handle: DWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelSetAttributes(handle: DWORD; freq, volume, pan: Integer): BOOL; stdcall; external bassdll;
function BASS_ChannelGetAttributes(handle: DWORD; var freq, volume: DWORD; var pan: Integer): BOOL; stdcall; external bassdll;
function BASS_ChannelSlideAttributes(handle: DWORD; freq, volume, pan: Integer; time: DWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelIsSliding(handle: DWORD): DWORD; stdcall;external bassdll;
function BASS_ChannelSetPosition(handle: DWORD; pos: QWORD): BOOL; stdcall; external bassdll;
function BASS_ChannelGetPosition(handle: DWORD): QWORD; stdcall; external bassdll;
function BASS_SPEAKER_N(n: DWORD): DWORD;

implementation

function BASS_SPEAKER_N(n: DWORD): DWORD;
begin
  Result := n shl 24;
end;

end.

