procedure BlockingRun

In some situations, such as console programs or DUnit test units, background processing is not desirable.

procedure Clear

Clears all the tag contents.

procedure CloseFile; virtual; abstract

Closes the file opened with OpenFile.

procedure CloseFile; override

Called by the base methods of TAuFileIn class to close the file.

procedure CloseTray

Closes CD-ROM drive’s tray.

function Compare4( S1,   S2 :  PChar ) : Boolean

Used internally by ReadRIFFHeader.

function CopyData( Buffer :  Pointer; BufferSize :  Integer ) : LongWord

Writes no more than BufferSize data into Buffer

constructor Create( AOwner:  TComponent ); override

Reimplementing constructor and destructor is optional.

procedure Done; override

Called to do whatever is needed to close the output as well as freeing any associated resources.

function DoOutput( Abort :  Boolean ):Boolean; override

Called in a loop to perform actual output.

procedure Eject

Ejects CD-ROM drive’s tray.

function FillBuffer( Buffer :  Pointer; BufferSize :  LongWord; var EOF :  Boolean ) : LongWord

The same as CopyData but tries to fill the Buffer.

procedure Flush

This method closes the current input (opened with Init), clearing up all temporary structures allocated during data transfer.

procedure TForm1.FormClose( Sender:  TObject; var Action:  TCloseAction )

This OnClose event prevents exceptions if he form is closed while playing.

procedure GetData( var Buffer :  Pointer; var Bytes :  LongWord ); virtual

This method retrieves input data.

Used by NewAC to retrieve decoded data.

function GetFormatDesc( CodecIndex,   FormatIndex :  Word ) : String

This method returns a format description based on the CodecIndex and FormatIndex parameters.

function GetFormatDesc( CodecIndex,   FormatIndex :  Word ) : String

This method returns a format description based on the CodecIndex and FormatIndex parameters.

procedure Init

This method prepares input component for reading data.

This method, being a wrapper around Seek, simpifies navigation in the input stream.

procedure OpenFile; virtual; abstract

Opens the file or stream if it is not already open.

procedure OpenFile; override

Called by the base methods of TAuFileIn class to open the file.

procedure Pause

Pauses the output.

procedure PauseRecord

Call this method to pause recording.

procedure Prepare; override

Performs all the steps required to initialize output.

function ReadRIFFHeader( Stream :  TStream; var AudioInfo :  TAudioInfo ) : Boolean

A helper function that parses wav file header and gets audio data parameters.

procedure Resume

Resumes previously paused output.

procedure ResumeRecord

Call this method to resume paused recording.

procedure Run

After an input component has been assigned, call Run to start the audio processing chain.

function Seek( SampleNum :  Int64 ) : Boolean

This method allows you to change the current playing position in the the input component.

function SeekInternal( var SampleNum :  Int64 ) : Boolean; virtual; abstract

This abstract method should be overridden with an implementation dependong on whether your input component is seekable or not.

function SeekInternal( var SampleNum :  Int64 ) : Boolean; override

Performs the file seeking.

function SetEndTime( Minutes,   Seconds :  LongWord ) : Boolean

This function is a wrapper around EndSample property, provided for convenience.

function SetStartTime( Minutes,   Seconds :  LongWord ) : Boolean

This function is a wrapper around StartSample property, provided for convenience.

procedure StartRecord

Call this method to start recording audio data passing through an audio tap.

procedure Stop( Async :  Boolean  =  True )

Stops the busy component or does nothing if the component is idle.

procedure StopRecord

Call this method to stop recording.