Package de.jarnbjo.ogg

Class LogicalOggStreamImpl

java.lang.Object

de.jarnbjo.ogg.LogicalOggStreamImpl

All Implemented Interfaces:

LogicalOggStream

public class LogicalOggStreamImpl
extends Object
implements LogicalOggStream

Field Summary

Fields inherited from interface de.jarnbjo.ogg.LogicalOggStream

FORMAT_FLAC, FORMAT_THEORA, FORMAT_UNKNOWN, FORMAT_VORBIS

Constructor Summary

Constructors

Constructor	Description
LogicalOggStreamImpl(PhysicalOggStream source, int serialNumber)

Method Summary

Modifier and Type	Method	Description
void	addGranulePosition(long granulePosition)
void	addPageNumberMapping(int physicalPageNumber)
void	checkFormat(OggPage page)
void	close()	Closes this stream.
String	getFormat()
long	getMaximumGranulePosition()	This method does not work if the physical Ogg stream is not seekable.
byte[]	getNextOggPacket()	Note: To read from the stream, you must use either this method or the method getNextOggPage.
OggPage	getNextOggPage()	Note: To read from the stream, you must use either this method or the method getNextOggPacket.
long	getTime()
boolean	isOpen()	Checks if this stream is open for reading.
void	reset()	Sets the stream's position to the beginning of the stream.
void	setTime(long granulePosition)	This method is invoked on all logical streams when calling the same method on the physical stream.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

LogicalOggStreamImpl

public LogicalOggStreamImpl(PhysicalOggStream source,
 int serialNumber)

Method Details

addPageNumberMapping

public void addPageNumberMapping(int physicalPageNumber)

addGranulePosition

public void addGranulePosition(long granulePosition)

reset

public void reset()
           throws IOException

Description copied from interface: LogicalOggStream

Sets the stream's position to the beginning of the stream. This method does not work if the physical Ogg stream is not seekable.

Specified by:

reset in interface LogicalOggStream

Throws:

OggFormatException - if the ogg stream is corrupted

IOException - if some other IO error occurs

getNextOggPage

public OggPage getNextOggPage()
                       throws IOException

Description copied from interface: LogicalOggStream

Note: To read from the stream, you must use either this method or the method getNextOggPacket. Mixing calls to the two methods will cause data corruption.

Specified by:

getNextOggPage in interface LogicalOggStream

Returns:

the next Ogg page

Throws:

OggFormatException - if the ogg stream is corrupted

IOException - if some other IO error occurs

See Also:

• LogicalOggStream.getNextOggPacket()

getNextOggPacket

public byte[] getNextOggPacket()
                        throws IOException

Description copied from interface: LogicalOggStream

Note: To read from the stream, you must use either this method or the method getNextOggPage. Mixing calls to the two methods will cause data corruption.

Specified by:

getNextOggPacket in interface LogicalOggStream

Returns:

the next packet as a byte array

Throws:

OggFormatException - if the ogg stream is corrupted

IOException - if some other IO error occurs

See Also:

• LogicalOggStream.getNextOggPage()

isOpen

public boolean isOpen()

Description copied from interface: LogicalOggStream

Checks if this stream is open for reading.

Specified by:

isOpen in interface LogicalOggStream

Returns:

true if this stream is open for reading, false otherwise

close

public void close()
           throws IOException

Description copied from interface: LogicalOggStream

Closes this stream. After invoking this method, no further access to the stream's data is possible.

Specified by:

close in interface LogicalOggStream

Throws:

IOException - if an IO error occurs

getMaximumGranulePosition

public long getMaximumGranulePosition()

Description copied from interface: LogicalOggStream

This method does not work if the physical Ogg stream is not seekable.

Specified by:

getMaximumGranulePosition in interface LogicalOggStream

Returns:

the granule position of the last page within this stream

getTime

public long getTime()

Specified by:

getTime in interface LogicalOggStream

Returns:

the last parsed granule position of this stream

setTime

public void setTime(long granulePosition)
             throws IOException

Description copied from interface: LogicalOggStream

This method is invoked on all logical streams when calling the same method on the physical stream. The same restrictions as mentioned there apply. This method does not work if the physical Ogg stream is not seekable.

Specified by:

setTime in interface LogicalOggStream

Throws:

IOException - if an IO error occurs

See Also:

• PhysicalOggStream.setTime(long)

checkFormat

public void checkFormat(OggPage page)

getFormat

public String getFormat()

Specified by:

getFormat in interface LogicalOggStream

Returns:

the content type of this stream

See Also:

• LogicalOggStream.FORMAT_UNKNOWN
• LogicalOggStream.FORMAT_VORBIS
• LogicalOggStream.FORMAT_FLAC
• LogicalOggStream.FORMAT_THEORA