org.xiph.speex.spi
Class SpeexFormatConvertionProvider
FormatConversionProvider
org.xiph.speex.spi.SpeexFormatConvertionProvider
public class SpeexFormatConvertionProvider
extends 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.
- Marc Gimpel, Wimba S.A. (mgimpel@horizonwimba.com)
AudioInputStream | getAudioInputStream(AudioFormat targetFormat, AudioInputStream sourceStream) - Obtains an audio input stream with the specified format from the given
audio input stream.
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AudioInputStream | getAudioInputStream(AudioFormat.Encoding targetEncoding, AudioInputStream sourceStream) - Obtains an audio input stream with the specified encoding from the given
audio input stream.
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AudioFormat.Encoding[] | getSourceEncodings() - Obtains the set of source format encodings from which format conversion
services are provided by this provider.
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AudioFormat.Encoding[] | getTargetEncodings() - Obtains the set of target format encodings to which format conversion
services are provided by this provider.
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AudioFormat.Encoding[] | getTargetEncodings(AudioFormat sourceFormat) - Obtains the set of target format encodings supported by the format
converter given a particular source format.
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AudioFormat[] | getTargetFormats(AudioFormat.Encoding targetEncoding, AudioFormat sourceFormat) - Obtains the set of target formats with the encoding specified supported by
the format converter.
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BOTH_ENCODINGS
public static final AudioFormat.Encoding[] BOTH_ENCODINGS
NO_ENCODING
public static final AudioFormat.Encoding[] NO_ENCODING
NO_FORMAT
public static final AudioFormat[] NO_FORMAT
PCM_ENCODING
public static final AudioFormat.Encoding[] PCM_ENCODING
SPEEX_ENCODING
public static final AudioFormat.Encoding[] SPEEX_ENCODING
getAudioInputStream
public AudioInputStream getAudioInputStream(AudioFormat targetFormat,
AudioInputStream sourceStream)
Obtains an audio input stream with the specified format from the given
audio input stream.
targetFormat
- - desired data format of the stream after processing.sourceStream
- - stream from which data to be processed should be read.
- stream from which processed data with the specified format may be
read.
getAudioInputStream
public AudioInputStream getAudioInputStream(AudioFormat.Encoding targetEncoding,
AudioInputStream sourceStream)
Obtains an audio input stream with the specified encoding from the given
audio input stream.
targetEncoding
- - desired encoding of the stream after processing.sourceStream
- - stream from which data to be processed should be read.
- stream from which processed data with the specified target
encoding may be read.
getSourceEncodings
public AudioFormat.Encoding[] getSourceEncodings()
Obtains the set of source format encodings from which format conversion
services are provided by this provider.
- array of source format encodings.
The array will always have a length of at least 1.
getTargetEncodings
public AudioFormat.Encoding[] getTargetEncodings()
Obtains the set of target format encodings to which format conversion
services are provided by this provider.
- array of target format encodings.
The array will always have a length of at least 1.
getTargetEncodings
public 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.
sourceFormat
- format of the incoming data.
- array of supported target format encodings.
getTargetFormats
public 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.
targetEncoding
- desired encoding of the outgoing data.sourceFormat
- format of the incoming data.
- array of supported target formats.
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