Examples of javax.sound.sampled.spi.FormatConversionProvider

javax.sound.sampled.spi.FormatConversionProvider
A format conversion provider provides format conversion services from one or more input formats to one or more output formats. Converters include codecs, which encode and/or decode audio data, as well as transcoders, etc. Format converters provide methods for determining what conversions are supported and for obtaining an audio stream from which converted data can be read.
The source format represents the format of the incoming audio data, which will be converted.
The target format represents the format of the processed, converted audio data. This is the format of the data that can be read from the stream returned by one of the getAudioInputStream methods. @author Kara Kytle @since 1.3

  }


  List codecs = getFormatConversionProviders();


  for(int i = 0; i < codecs.size(); i++) {
      FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
      if(codec.isConversionSupported(targetFormat,sourceStream.getFormat()) ) {
    return codec.getAudioInputStream(targetFormat,sourceStream);
      }
  }


  // we ran out of options...
  throw new IllegalArgumentException("Unsupported conversion: " + targetFormat + " from " + sourceStream.getFormat());

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        AudioFormat.Encoding encs[] = null;


        // gather from all the codecs
        for(int i=0; i<codecs.size(); i++ ) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            if( codec.isSourceEncodingSupported( sourceEncoding ) ) {
                encs = codec.getTargetEncodings();
                for (int j = 0; j < encs.length; j++) {
                    encodings.addElement( encs[j] );
                }
            }
        }

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        List codecs = getFormatConversionProviders();


        for(int i=0; i<codecs.size(); i++ ) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            if(codec.isConversionSupported(targetEncoding,sourceFormat) ) {
                return true;
            }
        }
        return false;
    }

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                                                       AudioInputStream sourceStream) {


        List codecs = getFormatConversionProviders();


        for(int i = 0; i < codecs.size(); i++) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            if( codec.isConversionSupported( targetEncoding, sourceStream.getFormat() ) ) {
                return codec.getAudioInputStream( targetEncoding, sourceStream );
            }
        }
        // we ran out of options, throw an exception
        throw new IllegalArgumentException("Unsupported conversion: " + targetEncoding + " from " + sourceStream.getFormat());
    }

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        AudioFormat fmts[] = null;


        // gather from all the codecs


        for(int i=0; i<codecs.size(); i++ ) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            fmts = codec.getTargetFormats(targetEncoding, sourceFormat);
            size += fmts.length;
            formats.addElement( fmts );
        }


        // now build a new array

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    public static boolean isConversionSupported(AudioFormat targetFormat, AudioFormat sourceFormat) {


        List codecs = getFormatConversionProviders();


        for(int i=0; i<codecs.size(); i++ ) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            if(codec.isConversionSupported(targetFormat, sourceFormat) ) {
                return true;
            }
        }
        return false;
    }

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        }


        List codecs = getFormatConversionProviders();


        for(int i = 0; i < codecs.size(); i++) {
            FormatConversionProvider codec = (FormatConversionProvider) codecs.get(i);
            if(codec.isConversionSupported(targetFormat,sourceStream.getFormat()) ) {
                return codec.getAudioInputStream(targetFormat,sourceStream);
            }
        }


        // we ran out of options...
        throw new IllegalArgumentException("Unsupported conversion: " + targetFormat + " from " + sourceStream.getFormat());

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        List<AudioFormat.Encoding> result = new ArrayList<AudioFormat.Encoding>();
        for (Iterator providers = ProviderService.getProviders(
                formatConversionProviderPath).iterator(); providers.hasNext();) {
            try {
                FormatConversionProvider pr = (FormatConversionProvider) providers
                        .next();
                if (!pr.isSourceEncodingSupported(sourceEncoding)) {
                    continue;
                }
                AudioFormat.Encoding[] encodings = pr.getTargetEncodings();
                for (AudioFormat.Encoding encoding : encodings) {
                    result.add(encoding);
                }
            } catch (ClassCastException e) {}
        }

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        List<AudioFormat.Encoding> result = new ArrayList<AudioFormat.Encoding>();
        for (Iterator providers = ProviderService.getProviders(
                formatConversionProviderPath).iterator(); providers.hasNext();) {
            try {
                FormatConversionProvider pr = (FormatConversionProvider) providers
                        .next();
                if (!pr.isSourceEncodingSupported(sourceEncoding)) {
                    continue;
                }
                AudioFormat.Encoding[] encodings = pr.getTargetEncodings();
                for (AudioFormat.Encoding encoding : encodings) {
                    result.add(encoding);
                }
            } catch (ClassCastException e) {}
        }

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     * an array of length 0 is returned. Otherwise, the array will have a length
     * of at least 1, representing <code>sourceEncoding</code> (no conversion).
     */
    public static AudioFormat.Encoding[] getTargetEncodings(AudioFormat.Encoding sourceEncoding) {


        FormatConversionProvider codecs[] = getFormatConversionProviders();
        Vector encodings = new Vector();


        int size = 0;
        int index = 0;
        AudioFormat.Encoding encs[] = null;

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