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## javax.sound.sampled.spi
Class AudioFileReader

    java.lang.Object
      |
      +--javax.sound.sampled.spi.AudioFileReader

public abstract class AudioFileReader
extends Object

Provider for audio file reading services. Classes providing concrete implementations can parse the format information from one or more types of audio file, and can produce audio input streams from files of these types.

Since:
  1.3

Constructor Summary
`AudioFileReader()`

Method Summary
`abstract AudioFileFormat` | `getAudioFileFormat(File file)` Obtains the audio file format of the `File` provided.
`abstract AudioFileFormat` | `getAudioFileFormat(InputStream stream)` Obtains the audio file format of the input stream provided.
`abstract AudioFileFormat` | `getAudioFileFormat(URL url)` Obtains the audio file format of the URL provided.
`abstract AudioInputStream` | `getAudioInputStream(File file)` Obtains an audio input stream from the `File` provided.
`abstract AudioInputStream` | `getAudioInputStream(InputStream stream)` Obtains an audio input stream from the input stream provided.
`abstract AudioInputStream` | `getAudioInputStream(URL url)` Obtains an audio input stream from the URL provided.

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

Constructor Detail

### AudioFileReader

    public AudioFileReader()

Method Detail

### getAudioFileFormat

    public abstract AudioFileFormat getAudioFileFormat(InputStream stream)
                                                throws UnsupportedAudioFileException,
                                                       IOException

  Obtains the audio file format of the input stream provided. The stream must point to valid audio file data. In general, audio file readers may need to read some data from the stream before determining whether they support it. These parsers must be able to mark the stream, read enough data to determine whether they support the stream, and, if not, reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with an `IOException`.

  Parameters:
    `stream` - the input stream from which file format information should be extracted
  Returns:
    an `AudioFileFormat` object describing the audio file format
  Throws:
    `UnsupportedAudioFileException` - if the stream does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs
  See Also:
    `InputStream.markSupported()`, `InputStream.mark(int)`

### getAudioFileFormat

    public abstract AudioFileFormat getAudioFileFormat(URL url)
                                                throws UnsupportedAudioFileException,
                                                       IOException

  Obtains the audio file format of the URL provided. The URL must point to valid audio file data.

  Parameters:
    `url` - the URL from which file format information should be extracted
  Returns:
    an `AudioFileFormat` object describing the audio file format
  Throws:
    `UnsupportedAudioFileException` - if the URL does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs

### getAudioFileFormat

    public abstract AudioFileFormat getAudioFileFormat(File file)
                                                throws UnsupportedAudioFileException,
                                                       IOException

  Obtains the audio file format of the `File` provided. The `File` must point to valid audio file data.

  Parameters:
    `file` - the `File` from which file format information should be extracted
  Returns:
    an `AudioFileFormat` object describing the audio file format
  Throws:
    `UnsupportedAudioFileException` - if the `File` does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs

### getAudioInputStream

    public abstract AudioInputStream getAudioInputStream(InputStream stream)
                                                  throws UnsupportedAudioFileException,
                                                         IOException

  Obtains an audio input stream from the input stream provided. The stream must point to valid audio file data. In general, audio file readers may need to read some data from the stream before determining whether they support it. These parsers must be able to mark the stream, read enough data to determine whether they support the stream, and, if not, reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with an `IOException`.

  Parameters:
    `stream` - the input stream from which the `AudioInputStream` should be constructed
  Returns:
    an `AudioInputStream` object based on the audio file data contained in the input stream.
  Throws:
    `UnsupportedAudioFileException` - if the stream does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs
  See Also:
    `InputStream.markSupported()`, `InputStream.mark(int)`

### getAudioInputStream

    public abstract AudioInputStream getAudioInputStream(URL url)
                                                  throws UnsupportedAudioFileException,
                                                         IOException

  Obtains an audio input stream from the URL provided. The URL must point to valid audio file data.

  Parameters:
    `url` - the URL for which the `AudioInputStream` should be constructed
  Returns:
    an `AudioInputStream` object based on the audio file data pointed to by the URL
  Throws:
    `UnsupportedAudioFileException` - if the URL does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs

### getAudioInputStream

    public abstract AudioInputStream getAudioInputStream(File file)
                                                  throws UnsupportedAudioFileException,
                                                         IOException

  Obtains an audio input stream from the `File` provided. The `File` must point to valid audio file data.

  Parameters:
    `file` - the `File` for which the `AudioInputStream` should be constructed
  Returns:
    an `AudioInputStream` object based on the audio file data pointed to by the File
  Throws:
    `UnsupportedAudioFileException` - if the `File` does not point to valid audio file data recognized by the system
    `IOException` - if an I/O exception occurs

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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 2002 Sun Microsystems, Inc. All rights reserved. Use is subject to license terms.