- java.lang.Object
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- javax.sound.sampled.spi.AudioFileReader
 
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 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
 
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Constructor SummaryConstructors Constructor Description AudioFileReader()
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Method SummaryAll Methods Instance Methods Abstract Methods Modifier and Type Method Description abstract AudioFileFormatgetAudioFileFormat(File file)Obtains the audio file format of theFileprovided.abstract AudioFileFormatgetAudioFileFormat(InputStream stream)Obtains the audio file format of the input stream provided.abstract AudioFileFormatgetAudioFileFormat(URL url)Obtains the audio file format of theURLprovided.abstract AudioInputStreamgetAudioInputStream(File file)Obtains an audio input stream from theFileprovided.abstract AudioInputStreamgetAudioInputStream(InputStream stream)Obtains an audio input stream from the input stream provided.abstract AudioInputStreamgetAudioInputStream(URL url)Obtains an audio input stream from theURLprovided.
 
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Method Detail- 
getAudioFileFormatpublic 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 reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with anIOException.- Parameters:
- stream- the input stream from which file format information should be extracted
- Returns:
- an AudioFileFormatobject 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
- NullPointerException- if- streamis- null
- See Also:
- InputStream.markSupported(),- InputStream.mark(int)
 
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getAudioFileFormatpublic abstract AudioFileFormat getAudioFileFormat(URL url) throws UnsupportedAudioFileException, IOException Obtains the audio file format of theURLprovided. TheURLmust point to valid audio file data.- Parameters:
- url- the- URLfrom which file format information should be extracted
- Returns:
- an AudioFileFormatobject describing the audio file format
- Throws:
- UnsupportedAudioFileException- if the- URLdoes not point to valid audio file data recognized by the system
- IOException- if an I/O exception occurs
- NullPointerException- if- urlis- null
 
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getAudioFileFormatpublic abstract AudioFileFormat getAudioFileFormat(File file) throws UnsupportedAudioFileException, IOException Obtains the audio file format of theFileprovided. TheFilemust point to valid audio file data.- Parameters:
- file- the- Filefrom which file format information should be extracted
- Returns:
- an AudioFileFormatobject describing the audio file format
- Throws:
- UnsupportedAudioFileException- if the- Filedoes not point to valid audio file data recognized by the system
- IOException- if an I/O exception occurs
- NullPointerException- if- fileis- null
 
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getAudioInputStreampublic 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 reset the stream's read pointer to its original position. If the input stream does not support this, this method may fail with anIOException.- Parameters:
- stream- the input stream from which the- AudioInputStreamshould be constructed
- Returns:
- an AudioInputStreamobject 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
- NullPointerException- if- streamis- null
- See Also:
- InputStream.markSupported(),- InputStream.mark(int)
 
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getAudioInputStreampublic abstract AudioInputStream getAudioInputStream(URL url) throws UnsupportedAudioFileException, IOException Obtains an audio input stream from theURLprovided. TheURLmust point to valid audio file data.- Parameters:
- url- the- URLfor which the- AudioInputStreamshould be constructed
- Returns:
- an AudioInputStreamobject based on the audio file data pointed to by theURL
- Throws:
- UnsupportedAudioFileException- if the- URLdoes not point to valid audio file data recognized by the system
- IOException- if an I/O exception occurs
- NullPointerException- if- urlis- null
 
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getAudioInputStreampublic abstract AudioInputStream getAudioInputStream(File file) throws UnsupportedAudioFileException, IOException Obtains an audio input stream from theFileprovided. TheFilemust point to valid audio file data.- Parameters:
- file- the- Filefor which the- AudioInputStreamshould be constructed
- Returns:
- an AudioInputStreamobject based on the audio file data pointed to by the File
- Throws:
- UnsupportedAudioFileException- if the- Filedoes not point to valid audio file data recognized by the system
- IOException- if an I/O exception occurs
- NullPointerException- if- fileis- null
 
 
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