RealICQClient/Includes/2007_MMTools/Help/Doc/MPEG/MMAUDIO.INT

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{=                (c) 1995-98 SwiftSoft Ronald Dittrich                 =}
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{=                          All Rights Reserved                         =}
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{=  Actual versions on http://www.swiftsoft.de/mmtools.html             =}
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{=  This code is for reference purposes only and may not be copied or   =}
{=  distributed in any format electronic or otherwise except one copy   =}
{=  for backup purposes.                                                =}
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{=  No Delphi Component Kit or Component individually or in a collection=}
{=  subclassed or otherwise from the code in this unit, or associated   =}
{=  .pas, .dfm, .dcu, .asm or .obj files may be sold or distributed     =}
{=  without express permission from SwiftSoft.                          =}
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{=  For more licence informations please refer to the associated        =}
{=  HelpFile.                                                           =}
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{=  $Date: 13.04.98 - 15:32:17 $                                        =}
{========================================================================}
unit MMAudio;

{$I COMPILER.INC}

interface

uses
{$IFDEF WIN32}
  Windows,
{$ELSE}
  WinTypes,
  WinProcs,
{$ENDIF}
  SysUtils,
  Classes,
  Controls,
  MMSystem,
  MMObj,
  MMString,
  MMDSPobj,
  MMRegs,
  MMUtils,
  MMWave,
  MMWaveIO,
  MMMpeg,
  MMMPType,
  MMFade,
  MMACMCvt;

type
    EMMAudioError = class(Exception);

    TMMAudioFileType = (ftWave,ftMpeg);

    {-- TMMAudioFile ----------------------------------------------------------}
    TMMAudioFile = class(TMMDSPComponent)
    public
       constructor Create(aOwner: TComponent); override;
       destructor  Destroy; override;

       procedure LoadFromFile(const aFileName: String);
       procedure FreeFile;

       procedure FadeOut(Duration: Longint);

       property  Empty: Boolean read GetEmpty;
       property  SampleRate: Longint read GetSampleRate;
       property  BitRate: integer read GetBitRate;
       property  ChannelMode: TMMMode read GetChannelMode;
       property  Position: Longint read GetPosition write SetPosition;
       property  FileLength: Longint read GetFileLength;
       property  PlayLength: Longint read GetPlayLength write SetPlayLength;
       property  FadeInDuration: Longint read FFadeInDuration write SetFadeInDuration;
       property  FadeOutDuration: Longint read FFadeOutDuration write SetFadeOutDuration;
       property  FadeOutPosition: LongInt read FFadeOutPosition write SetFadeOutPosition;

    published
       property Output;
       property Enabled: Boolean read FEnabled write FEnabled default True;
       property MpegTrailingHeader: Longint read GetTrailingHeader write SetTrailingHeader;
       property FileName: TFileName read GetFileName write SetFileName;
       property FileType: TMMAudioFileType read GetFileType write SetFileType stored False;
       property Volume: Longint read FVolume write SetVolume default VOLUMEBASE;
       property Panning: Longint read FPanning write SetPanning default 0;
    end;

function IsValidAudioFile(FileName: TFileName): Boolean;

procedure Register;