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## javax.sound.sampled.spi
Class FormatConversionProvider

    java.lang.Object
      javax.sound.sampled.spi.FormatConversionProvider

    public abstract class FormatConversionProvider

extends Object

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.

Since:
  1.3

Constructor Summary
`FormatConversionProvider()`

Method Summary
`abstract AudioInputStream` | `getAudioInputStream(AudioFormat.Encoding targetEncoding, AudioInputStream sourceStream)` Obtains an audio input stream with the specified encoding from the given audio input stream.
`abstract AudioInputStream` | `getAudioInputStream(AudioFormat targetFormat, AudioInputStream sourceStream)` Obtains an audio input stream with the specified format from the given audio input stream.
`abstract AudioFormat.Encoding[]` | `getSourceEncodings()` Obtains the set of source format encodings from which format conversion services are provided by this provider.
`abstract AudioFormat.Encoding[]` | `getTargetEncodings()` Obtains the set of target format encodings to which format conversion services are provided by this provider.
`abstract AudioFormat.Encoding[]` | `getTargetEncodings(AudioFormat sourceFormat)` Obtains the set of target format encodings supported by the format converter given a particular source format.
`abstract AudioFormat[]` | `getTargetFormats(AudioFormat.Encoding targetEncoding, AudioFormat sourceFormat)` Obtains the set of target formats with the encoding specified supported by the format converter If no target formats with the specified encoding are supported for this source format, an array of length 0 is returned.
`boolean` | `isConversionSupported(AudioFormat.Encoding targetEncoding, AudioFormat sourceFormat)` Indicates whether the format converter supports conversion to a particular encoding from a particular format.
`boolean` | `isConversionSupported(AudioFormat targetFormat, AudioFormat sourceFormat)` Indicates whether the format converter supports conversion to one particular format from another.
`boolean` | `isSourceEncodingSupported(AudioFormat.Encoding sourceEncoding)` Indicates whether the format converter supports conversion from the specified source format encoding.
`boolean` | `isTargetEncodingSupported(AudioFormat.Encoding targetEncoding)` Indicates whether the format converter supports conversion to the specified target format encoding.

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### FormatConversionProvider

    public FormatConversionProvider()

Method Detail

### getSourceEncodings

    public abstract AudioFormat.Encoding[] getSourceEncodings()

  Obtains the set of source format encodings from which format conversion services are provided by this provider.

  Returns:
    array of source format encodings. The array will always have a length of at least 1.

### getTargetEncodings

    public abstract AudioFormat.Encoding[] getTargetEncodings()

  Obtains the set of target format encodings to which format conversion services are provided by this provider.

  Returns:
    array of target format encodings. The array will always have a length of at least 1.

### isSourceEncodingSupported

    public boolean isSourceEncodingSupported(AudioFormat.Encoding sourceEncoding)

  Indicates whether the format converter supports conversion from the specified source format encoding.

  Parameters:
    `sourceEncoding` - the source format encoding for which support is queried
  Returns:
    `true` if the encoding is supported, otherwise `false`

### isTargetEncodingSupported

    public boolean isTargetEncodingSupported(AudioFormat.Encoding targetEncoding)

  Indicates whether the format converter supports conversion to the specified target format encoding.

  Parameters:
    `targetEncoding` - the target format encoding for which support is queried
  Returns:
    `true` if the encoding is supported, otherwise `false`

### getTargetEncodings

    public abstract AudioFormat.Encoding[] getTargetEncodings(AudioFormat sourceFormat)

  Obtains the set of target format encodings supported by the format converter given a particular source format. If no target format encodings are supported for this source format, an array of length 0 is returned.

  Returns:
    array of supported target format encodings.

### isConversionSupported

    public boolean isConversionSupported(AudioFormat.Encoding targetEncoding,
                                         AudioFormat sourceFormat)

  Indicates whether the format converter supports conversion to a particular encoding from a particular format.

  Parameters:
    `targetEncoding` - desired encoding of the outgoing data
    `sourceFormat` - format of the incoming data
  Returns:
    `true` if the conversion is supported, otherwise `false`

### getTargetFormats

    public abstract AudioFormat[] getTargetFormats(AudioFormat.Encoding targetEncoding,
                                                   AudioFormat sourceFormat)

  Obtains the set of target formats with the encoding specified supported by the format converter If no target formats with the specified encoding are supported for this source format, an array of length 0 is returned.

  Returns:
    array of supported target formats.

### isConversionSupported

    public boolean isConversionSupported(AudioFormat targetFormat,
                                         AudioFormat sourceFormat)

  Indicates whether the format converter supports conversion to one particular format from another.

  Parameters:
    `targetFormat` - desired format of outgoing data
    `sourceFormat` - format of the incoming data
  Returns:
    `true` if the conversion is supported, otherwise `false`

### getAudioInputStream

    public abstract AudioInputStream getAudioInputStream(AudioFormat.Encoding targetEncoding,
                                                         AudioInputStream sourceStream)

  Obtains an audio input stream with the specified encoding from the given audio input stream.

  Parameters:
    `targetEncoding` - desired encoding of the stream after processing
    `sourceStream` - stream from which data to be processed should be read
  Returns:
    stream from which processed data with the specified target encoding may be read
  Throws:
    `IllegalArgumentException` - if the format combination supplied is not supported.

### getAudioInputStream

    public abstract AudioInputStream getAudioInputStream(AudioFormat targetFormat,
                                                         AudioInputStream sourceStream)

  Obtains an audio input stream with the specified format from the given audio input stream.

  Parameters:
    `targetFormat` - desired data format of the stream after processing
    `sourceStream` - stream from which data to be processed should be read
  Returns:
    stream from which processed data with the specified format may be read
  Throws:
    `IllegalArgumentException` - if the format combination supplied is not supported.

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For further API reference and developer documentation, see Java 2 SDK SE Developer Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.

Copyright 2004 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms. Also see the documentation redistribution policy.