de.humatic.dsj.util

Class AtomParser

java.lang.Object

de.humatic.dsj.util.AtomParser

public class AtomParser
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String[]	ftypes Array holding defined ftyp tags.

Method Summary

Modifier and Type	Method and Description
void	close()
static AtomParser	createForFile(java.io.File atomFile) Creates an AtomParser instance to parse data from the given file.
static AtomParser	createForType(java.lang.String ftyp) Creates an AtomParser instance for the given type to read from raw data.
void	dump() Dumps the atom tree read from the file the parser has been initialized with to the current log stream.
void	dump(Atom atom) Dumps the given Atom and all its child atoms to the current log stream.
void	dump(byte[] rawData, int startPos) Dumps the atom tree read from the given byte array at %startPos to the current log stream.
protected void	finalize()
Atom	getAtom(java.lang.String atomID, Atom parentAtom) Returns the atom with the given ID from parentAtom's data or null if not found
Atom	getAtom(java.lang.String atomID, byte[] data, int offset) Returns the first atom with the given ID within the given raw data.
Atom	getAtom(java.lang.String atomID, int offset) Returns the first atom with the given ID starting at offset within the file the parser has been initialized with.

Methods inherited from class java.lang.Object

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

Field Detail

ftypes

public static java.lang.String[] ftypes

Array holding defined ftyp tags. see mp4ra.org for details.

Method Detail

createForType

public static AtomParser createForType(java.lang.String ftyp)
                                throws DSJException

Creates an AtomParser instance for the given type to read from raw data.

Throws:

DSJException

createForFile

public static AtomParser createForFile(java.io.File atomFile)
                                throws java.io.IOException

Creates an AtomParser instance to parse data from the given file. If there is no ftyp atom in the file an exception is thrown.

Throws:

java.io.IOException

close

public void close()

finalize

protected void finalize()

Overrides:

finalize in class java.lang.Object

getAtom

public Atom getAtom(java.lang.String atomID,
                    byte[] data,
                    int offset)

Returns the first atom with the given ID within the given raw data.

getAtom

public Atom getAtom(java.lang.String atomID,
                    int offset)
             throws java.lang.Exception

Returns the first atom with the given ID starting at offset within the file the parser has been initialized with.

Throws:

java.lang.Exception

getAtom

public Atom getAtom(java.lang.String atomID,
                    Atom parentAtom)

Returns the atom with the given ID from parentAtom's data or null if not found

dump

public void dump()
          throws java.lang.Exception

Dumps the atom tree read from the file the parser has been initialized with to the current log stream.

Throws:

java.lang.Exception

dump

public void dump(byte[] rawData,
                 int startPos)
          throws java.lang.Exception

Dumps the atom tree read from the given byte array at %startPos to the current log stream.

Throws:

java.lang.Exception

dump

public void dump(Atom atom)

Dumps the given Atom and all its child atoms to the current log stream.