Package com.sedmelluq.discord.lavaplayer.container.mpeg.reader

Class MpegReader

java.lang.Object

com.sedmelluq.discord.lavaplayer.container.mpeg.reader.MpegReader

public class MpegReader
extends java.lang.Object

Handles reading parts of an MP4 file

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MpegReader.Chain	Child element processing helper class.

Field Summary

Fields

Modifier and Type	Field	Description
java.io.DataInput	data	The input as a DataInput
SeekableInputStream	seek	The input as a seekable stream

Constructor Summary

Constructors

Constructor	Description
MpegReader(SeekableInputStream inputStream)

Method Summary

Modifier and Type	Method	Description
MpegReader.Chain	in(MpegSectionInfo parent)	Start a child element handling chain
MpegSectionInfo	nextChild(MpegSectionInfo parent)	Reads the header of the next child element.
MpegVersionedSectionInfo	parseFlags(MpegSectionInfo section)	Parse the flags and version for the specified section
int	readCompressedInt()
java.lang.String	readFourCC()	Read a FourCC as a string
java.lang.String	readTerminatedString()	Read a null-terminated UTF string.
java.lang.String	readUtfString(int size)	Read an UTF string with a specified size.
void	skip(MpegSectionInfo section)	Skip to the end of a section.

Methods inherited from class java.lang.Object

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

Field Detail

data

public final java.io.DataInput data

The input as a DataInput

seek

public final SeekableInputStream seek

The input as a seekable stream

Constructor Detail

MpegReader

public MpegReader(SeekableInputStream inputStream)

Parameters:

inputStream - Input as a seekable stream

Method Detail

nextChild

public MpegSectionInfo nextChild(MpegSectionInfo parent)
                          throws java.io.IOException

Reads the header of the next child element. Assumes position is at the start of a header or at the end of the section.

Parameters:

parent - The section from which to read child sections from

Returns:

The element if there were any more child elements

Throws:

java.io.IOException - When network exception is happened

skip

public void skip(MpegSectionInfo section)

Skip to the end of a section.

Parameters:

section - The section to skip

readFourCC

public java.lang.String readFourCC()
                            throws java.io.IOException

Read a FourCC as a string

Returns:

The FourCC string

Throws:

java.io.IOException - When reading the bytes from input fails

readUtfString

public java.lang.String readUtfString(int size)
                               throws java.io.IOException

Read an UTF string with a specified size.

Parameters:

size - Size in bytes.

Returns:

The string read from the stream

Throws:

java.io.IOException - On read error

readTerminatedString

public java.lang.String readTerminatedString()
                                      throws java.io.IOException

Read a null-terminated UTF string.

Returns:

The string read from the stream

Throws:

java.io.IOException - On read error

readCompressedInt

public int readCompressedInt()
                      throws java.io.IOException

Throws:

java.io.IOException

parseFlags

public MpegVersionedSectionInfo parseFlags(MpegSectionInfo section)
                                    throws java.io.IOException

Parse the flags and version for the specified section

Parameters:

section - The section where the flags and version should be parsed

Returns:

The section info with version info

Throws:

java.io.IOException - On a read error

in

public MpegReader.Chain in(MpegSectionInfo parent)

Start a child element handling chain

Parameters:

parent - The parent chain

Returns:

The chain