org.red5.io.mp3.impl
Class MP3Header

java.lang.Object
  org.red5.io.mp3.impl.MP3Header

public class MP3Header
extends Object

Header of a MP3 frame.

Author:

The Red5 Project ([email protected]), Joachim Bauch ([email protected])

See Also:

File format

Constructor Summary

MP3Header(int data)
Creates MP3 header from frame sync value

Method Summary

double	frameDuration() Return the duration of the frame for this header.
int	frameSize() Calculate the size of a MP3 frame for this header.
int	getBitRate() Getter for bitrate
int	getData() Getter for frame sync word data
int	getSampleRate() Getter for sample rate
boolean	isProtected() Whether MP3 has protection bit
boolean	isStereo() Whether stereo playback mode is used

Methods inherited from class java.lang.Object

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

Constructor Detail

MP3Header

public MP3Header(int data)
          throws Exception

Creates MP3 header from frame sync value

Parameters:

data - Frame sync data

Throws:

Exception - On invalid frame synchronization

Method Detail

getData

public int getData()

Getter for frame sync word data

Returns:

Frame sync word data

isStereo

public boolean isStereo()

Whether stereo playback mode is used

Returns:

true if stereo mode is used, false otherwise

isProtected

public boolean isProtected()

Whether MP3 has protection bit

Returns:

true if MP3 has protection bit, false otherwise

getBitRate

public int getBitRate()

Getter for bitrate

Returns:

File bitrate

getSampleRate

public int getSampleRate()

Getter for sample rate

Returns:

Sampling rate

frameSize

public int frameSize()

Calculate the size of a MP3 frame for this header.

Returns:

size of the frame including the header

frameDuration

public double frameDuration()

Return the duration of the frame for this header.

Returns:

The duration in milliseconds