fi.helsinki.cs.ohtu.mpeg2
Class DecoderBuffer

java.lang.Object
  fi.helsinki.cs.ohtu.mpeg2.DecoderBuffer

public class DecoderBuffer
extends java.lang.Object

Implements a simple model of decoder buffering.

Nested Class Summary

private static class

DecoderBuffer.DecoderBufferEntry

Field Summary

private java.util.Queue<DecoderBuffer.DecoderBufferEntry>	buffer
private int	length
private int	size

Constructor Summary

DecoderBuffer(int size)
Creates a new decoder buffer with the given buffer size.

Method Summary

void	add(long dts, int length) Adds a new decoding entry to the buffer.
int	getLength() Returns the length of the buffer, that is, the sum of the lengths of all the entries.
int	getSize() Returns the size of the buffer.
int	getSpace() Returns the space available in the buffer.
void	removeDecoded(long pcr) Removes all the decoding entries to be decoded by the given PCR.

Methods inherited from class java.lang.Object

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

Field Detail

buffer

private final java.util.Queue<DecoderBuffer.DecoderBufferEntry> buffer

size

private final int size

length

private int length

Constructor Detail

DecoderBuffer

public DecoderBuffer(int size)

Creates a new decoder buffer with the given buffer size.

Parameters:

size - the size of the buffer

Method Detail

add

public void add(long dts,
                int length)

Adds a new decoding entry to the buffer.

Parameters:

dts - the DTS for the entry, i.e. when the entry is removed

length - the length of the entry

removeDecoded

public void removeDecoded(long pcr)

Removes all the decoding entries to be decoded by the given PCR.

Parameters:

pcr - the program clock reference

getLength

public int getLength()

Returns the length of the buffer, that is, the sum of the lengths of all the entries.

Returns:

the length of the buffer

getSize

public int getSize()

Returns the size of the buffer.

Returns:

the size of the buffer

getSpace

public int getSpace()

Returns the space available in the buffer.

Returns:

the space available