org.mp4parser.boxes.iso14496.part12

Class BitRateBox

java.lang.Object

org.mp4parser.support.AbstractBox

org.mp4parser.boxes.iso14496.part12.BitRateBox

All Implemented Interfaces:

Box, ParsableBox

public final class BitRateBox
extends AbstractBox

4cc = ""btrt""

 class BitRateBox extends Box('btrt') {
  unsigned int(32) bufferSizeDB;
  // gives the size of the decoding buffer for
  // the elementary stream in bytes.
  unsigned int(32) maxBitrate;
  // gives the maximum rate in bits/second
  // over any window of one second.
  unsigned int(32) avgBitrate;
  // avgBitrate gives the average rate in
  // bits/second over the entire presentation.
 }

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	TYPE

Fields inherited from class org.mp4parser.support.AbstractBox

content, type

Constructor Summary

Constructors

Constructor and Description
BitRateBox()

Method Summary

Modifier and Type	Method and Description
void	_parseDetails(java.nio.ByteBuffer content) Parse the box's fields and child boxes if any.
long	getAvgBitrate() Gets the average rate in bits/second over the entire presentation.
long	getBufferSizeDb() Get the size of the decoding buffer for the elementary stream in bytes.
protected void	getContent(java.nio.ByteBuffer byteBuffer) Write the box's content into the given ByteBuffer.
protected long	getContentSize() Get the box's content size without its header.
long	getMaxBitrate() gets the maximum rate in bits/second over any window of one second.
void	setAvgBitrate(long avgBitrate) Sets the average rate in bits/second over the entire presentation.
void	setBufferSizeDb(long bufferSizeDb) Sets the size of the decoding buffer for the elementary stream in bytes
void	setMaxBitrate(long maxBitrate) Sets the maximum rate in bits/second over any window of one second.

Methods inherited from class org.mp4parser.support.AbstractBox

getBox, getSize, getType, getUserType, isParsed, parse, parseDetails

Methods inherited from class java.lang.Object

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

Field Detail

TYPE

public static final java.lang.String TYPE

See Also:

Constant Field Values

Constructor Detail

BitRateBox

public BitRateBox()

Method Detail

getContentSize

protected long getContentSize()

Description copied from class: AbstractBox

Get the box's content size without its header. This must be the exact number of bytes that getContent(ByteBuffer) writes.

Specified by:

getContentSize in class AbstractBox

Returns:

Gets the box's content size in bytes

See Also:

AbstractBox.getContent(java.nio.ByteBuffer)

_parseDetails

public void _parseDetails(java.nio.ByteBuffer content)

Description copied from class: AbstractBox

Parse the box's fields and child boxes if any.

Specified by:

_parseDetails in class AbstractBox

Parameters:

content - the box's raw content beginning after the 4-cc field.

getContent

protected void getContent(java.nio.ByteBuffer byteBuffer)

Description copied from class: AbstractBox

Write the box's content into the given ByteBuffer. This must include flags and version in case of a full box. byteBuffer has been initialized with getSize() bytes.

Specified by:

getContent in class AbstractBox

Parameters:

byteBuffer - the sink for the box's content

getBufferSizeDb

public long getBufferSizeDb()

Get the size of the decoding buffer for the elementary stream in bytes.

Returns:

decoding buffer size

setBufferSizeDb

public void setBufferSizeDb(long bufferSizeDb)

Sets the size of the decoding buffer for the elementary stream in bytes

Parameters:

bufferSizeDb - decoding buffer size

getMaxBitrate

public long getMaxBitrate()

gets the maximum rate in bits/second over any window of one second.

Returns:

max bit rate

setMaxBitrate

public void setMaxBitrate(long maxBitrate)

Sets the maximum rate in bits/second over any window of one second.

Parameters:

maxBitrate - max bit rate

getAvgBitrate

public long getAvgBitrate()

Gets the average rate in bits/second over the entire presentation.

Returns:

average bit rate

setAvgBitrate

public void setAvgBitrate(long avgBitrate)

Sets the average rate in bits/second over the entire presentation.

Parameters:

avgBitrate - the track's average bit rate