Examples of de.sciss.io.AudioFileDescr

de.sciss.io.AudioFileDescr
An AudioFileDescr is a data structure that describes the format of an AudioFile. It was public readable fields for common parameters such as sample rate and bitdepth. More specific features such as markers or gain chunks are stored using a Map object being accessed throught the setProperty and getProperty methods. A corresponding GUI element, the AudioFileFormatPane exists which presents the common fields to the user. @author Hanns Holger Rutz @version 0.28, 07-Dec-07 @see AudioFile @see AudioFileFormatPane @todo all files are considered big endian at themoment which might be inconvenient on non mac systems because there are for example different endian versions for ircam and we cannot read the little endian one. aiff however is per se big endian and should therefore cause no trouble.

  


  public static AudioTrail newFrom( AudioFile af )
  throws IOException
  {
    final AudioFileDescr  afd      = af.getDescr();
    final int[][]      channelMaps = new int[ 1 ][ afd.channels ];
    final AudioTrail    at;
    final Span        span    = new Span( 0, afd.length );


    for( int i = 0; i < afd.channels; i++ ) {

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    if( afs.length == 1 ) return newFrom( afs[ 0 ]);
    if( afs.length == 0 ) throw new IllegalArgumentException( "Need at least one audio file" );
    
    final long      length;
    final double    rate;
    AudioFileDescr    afd;
    final int[][]    channelMaps;
    final Span      span;
    final AudioTrail  at;
    final Span[]    fileSpans  = new Span[ afs.length ];

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  public void exchange( AudioFile af )
  throws IOException
  {
    if( audioFiles.length != 1 ) throw new IllegalStateException();
  
    final AudioFileDescr  afd      = af.getDescr();
    final Span        span    = new Span( 0, afd.length );


    if( afd.channels != channelMaps[ 0 ].length ) throw new IllegalStateException();


//    clear( null );

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    if( audioFiles.length != afs.length ) throw new IllegalStateException();
    
    final long      length;
    final double    rate;
    AudioFileDescr    afd;
    final Span      span;
    final Span[]    fileSpans  = new Span[ afs.length ];
    
    afd      = afs[ 0 ].getDescr();
    length    = afd.length;

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//    }
    
   private void createTempFiles()
    throws IOException
  {
    final AudioFileDescr afd  = new AudioFileDescr();
    afd.type          = AudioFileDescr.TYPE_WAVE64; // TYPE_AIFF
    afd.rate          = getRate();
    afd.bitsPerSample      = 32;
    afd.sampleFormat      = AudioFileDescr.FORMAT_FLOAT;


    if( singleFile ) {
      afd.channels      = getChannelNum();
      afd.file        = IOUtil.createTempFile();
      tempF          = new AudioFile[] { AudioFile.openAsWrite( afd )};
    } else {
      AudioFileDescr afd2;
      final AudioFile[] tempF2 = new AudioFile[ channelMaps.length ];
      for( int i = 0; i < channelMaps.length; i++ ) {
        afd2        = new AudioFileDescr( afd );
        afd2.channels    = channelMaps[ i ].length;
        afd2.file      = IOUtil.createTempFile();
        tempF2[ i ]      = AudioFile.openAsWrite( afd2 );
      }
      // real assignment here coz tempF will remain null if error occurs in the loop

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  {
    super();
  
    this.afds          = afds;
    if( displayAFD == null ) {
      this.displayAFD      = new AudioFileDescr();
      autoCreateDisplayDescr();
    } else {
      this.displayAFD      = displayAFD;
      name          = displayAFD.file == null ? null : displayAFD.file.getName(); 
    }

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  {
    if( afds.length == 0 ) {
      displayAFD.file        = null;
      name            = null;
    } else {
      final AudioFileDescr proto  = afds[ 0 ];
      displayAFD.type        = proto.type;
      displayAFD.rate        = proto.rate;
      displayAFD.bitsPerSample  = proto.bitsPerSample;
      displayAFD.sampleFormat    = proto.sampleFormat;
      displayAFD.length      = proto.length;

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  public static Session newFrom( File path, boolean createTransport, boolean createOSC )
  throws IOException
  {
    final AudioFile      af  = AudioFile.openAsRead( path );
    final AudioFileDescr  afd  = af.getDescr();
    Session          doc  = null;
    AudioTrail        at  = null;
    
    try {
// System.err.println( "readMarkers" );

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      final int[]            channelMap  = (int[]) context.getClientArg( "chanMap" );
      final AudioTrail        audioTrail  = doc.getAudioTrail();
//      final File[]          tempFs    = new File[ numFiles ];
//      final boolean[]          renamed    = new boolean[ numFiles ];
      final AudioFile[]        afs      = new AudioFile[ numFiles ];
      AudioFileDescr          afdTemp;
      File              tempF;
      
      context.putClientArg( "afs", afs );


      if( saveMarkers ) {
        if( clientAFDs[ 0 ].isPropertySupported( AudioFileDescr.KEY_MARKERS )) {
          doc.markers.copyToAudioFile( clientAFDs[ 0 ], span );  // XXX
        } else if( !doc.markers.isEmpty() ) {
          System.err.println( "WARNING: markers are not saved in this file format!!!" );
        }
      } else { // WARNING: we must clear KEY_MARKERS, it might contain copied data!
        clientAFDs[ 0 ].setProperty( AudioFileDescr.KEY_MARKERS, null );
      }
      for( int i = 0; i < numFiles; i++ ) {
        if( clientAFDs[ i ].file.exists() ) {
//            tempFs[ i ]      = File.createTempFile( "eis", null, afds[ i ].file.getParentFile() );
//            tempFs[ i ].delete();
          tempF        = File.createTempFile( "eis", null, clientAFDs[ i ].file.getParentFile() );
          afdTemp        = new AudioFileDescr( clientAFDs[ i ]);
//            afdTemp.file    = tempFs[ i ];
          afdTemp.file    = tempF;
//            renamed[ i ]    = true;
          afs[ i ]      = AudioFile.openAsWrite( afdTemp );
        } else {

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      super( text, shortcut );
    }


    public void actionPerformed( ActionEvent e )
    {
      final AudioFileDescr afd = query();
      if( afd != null ) {
//        // XXX there is a bug with
//        // FloatingPaletteHandler
//        // causing infinite mutual window
//        // refresh if we open the new window

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