org.red5.io.mp3.impl
Class MP3Reader

java.lang.Object
  org.red5.io.mp3.impl.MP3Reader

All Implemented Interfaces:

IKeyFrameDataAnalyzer, ITagReader

public class MP3Reader
extends Object
implements ITagReader, IKeyFrameDataAnalyzer

Read MP3 files

Nested Class Summary

Nested classes/interfaces inherited from interface org.red5.io.flv.IKeyFrameDataAnalyzer

IKeyFrameDataAnalyzer.KeyFrameMeta

Field Summary

protected static Logger

log

Constructor Summary

MP3Reader(File file)
Creates reader from file input stream

Method Summary

IKeyFrameDataAnalyzer.KeyFrameMeta	analyzeKeyFrames() Analyze and return keyframe metadata.
void	close() Closes the reader and free any allocated memory.
void	decodeHeader() Decode the header of the stream;
long	getBytesRead() Returns the amount of bytes read
long	getDuration() Return length in seconds
IStreamableFile	getFile() Return the file that is loaded.
int	getOffset() Returns the offet length
long	getTotalBytes() Get the total readable bytes in a file or ByteBuffer.
boolean	hasMoreTags() Returns a boolean stating whether the FLV has more tags
boolean	hasVideo() A MP3 stream never has video.
void	position(long pos) Move the reader pointer to given position in file.
ITag	readTag() Returns a Tag object
void	searchNextFrame() Search for next frame sync word.
void	setFrameCache(IKeyFrameMetaCache frameCache)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static Logger log

Constructor Detail

MP3Reader

public MP3Reader(File file)
          throws IOException

Creates reader from file input stream

Parameters:

file - file input

Throws:

IOException

Method Detail

hasVideo

public boolean hasVideo()

A MP3 stream never has video.

Specified by:

hasVideo in interface ITagReader

Returns:

always returns false

setFrameCache

public void setFrameCache(IKeyFrameMetaCache frameCache)

searchNextFrame

public void searchNextFrame()

Search for next frame sync word. Sync word identifies valid frame.

getFile

public IStreamableFile getFile()

Return the file that is loaded.

Specified by:

getFile in interface ITagReader

Returns:

the file to be loaded

getOffset

public int getOffset()

Returns the offet length

Specified by:

getOffset in interface ITagReader

Returns:

int

getBytesRead

public long getBytesRead()

Returns the amount of bytes read

Specified by:

getBytesRead in interface ITagReader

Returns:

long

getDuration

public long getDuration()

Return length in seconds

Specified by:

getDuration in interface ITagReader

Returns:

length in seconds

getTotalBytes

public long getTotalBytes()

Get the total readable bytes in a file or ByteBuffer.

Specified by:

getTotalBytes in interface ITagReader

Returns:

Total readable bytes

hasMoreTags

public boolean hasMoreTags()

Returns a boolean stating whether the FLV has more tags

Specified by:

hasMoreTags in interface ITagReader

Returns:

boolean

readTag

public ITag readTag()

Returns a Tag object

Specified by:

readTag in interface ITagReader

Returns:

Tag

close

public void close()

Closes the reader and free any allocated memory.

Specified by:

close in interface ITagReader

decodeHeader

public void decodeHeader()

Decode the header of the stream;

Specified by:

decodeHeader in interface ITagReader

position

public void position(long pos)

Move the reader pointer to given position in file.

Specified by:

position in interface ITagReader

Parameters:

pos - File position to move to

analyzeKeyFrames

public IKeyFrameDataAnalyzer.KeyFrameMeta analyzeKeyFrames()

Analyze and return keyframe metadata.

Specified by:

analyzeKeyFrames in interface IKeyFrameDataAnalyzer

Returns:

Metadata object