fi.helsinki.cs.ohtu.mpeg2
Class StreamID

java.lang.Object
  fi.helsinki.cs.ohtu.mpeg2.StreamID

public class StreamID
extends java.lang.Object

Represents a MPEG-2 stream ID. In program streams, the stream ID specifies the type and number of the elementary stream in a given PES packet.

Field Summary

static StreamID	ANCILLARY Ancillary stream (program stream data in a transport stream).
static StreamID	DSM_CC DSMCC stream.
static StreamID	ECM ECM stream (unconstrained syntax).
static StreamID	EMM EMM stream (unconstrained syntax).
private int	encodedValue
static StreamID	EXTENDED Extended syntax stream.
static StreamID	FLEX_MUX ISO/IEC 14496-1 FlexMux stream.
static StreamID	H_222_1_TYPE_A H.222.1 type A stream.
static StreamID	H_222_1_TYPE_B H.222.1 type B stream.
static StreamID	H_222_1_TYPE_C H.222.1 type C stream.
static StreamID	H_222_1_TYPE_D H.222.1 type D stream.
static StreamID	H_222_1_TYPE_E H.222.1 type E stream.
static StreamID	ISO_13522 ISO/IEC 13522 stream.
static StreamID	METADATA Metadata stream.
static StreamID	PADDING Padding stream.
static StreamID	PRIVATE_1 Private stream 1 (syntax common with audio/video packets).
static StreamID	PRIVATE_2 Private stream 2 (unconstrained syntax).
static StreamID	PROGRAM_DIRECTORY Program stream directory meta-stream.
static StreamID	PROGRAM_MAP Program stream map meta-stream.
static StreamID	SL_PACKETIZED ISO/IEC 14496-1 SL-packetized stream.

Constructor Summary

private

StreamID(int encodedValue)

Method Summary

static StreamID	audio(int number) Audio stream with a given number.
boolean	equals(java.lang.Object a)
int	hashCode()
boolean	isAudioStream() Returns whether this stream identifier represents an audio stream.
boolean	isVideoStream() Returns whether this stream identifier represents a video stream.
static StreamID	video(int number) Video stream with a given number.
void	writeTo(BitOutputStream stream) Writes the code to a bit stream.

Methods inherited from class java.lang.Object

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

Field Detail

PROGRAM_MAP

public static final StreamID PROGRAM_MAP

Program stream map meta-stream.

PRIVATE_1

public static final StreamID PRIVATE_1

Private stream 1 (syntax common with audio/video packets).

PRIVATE_2

public static final StreamID PRIVATE_2

Private stream 2 (unconstrained syntax).

ECM

public static final StreamID ECM

ECM stream (unconstrained syntax).

EMM

public static final StreamID EMM

EMM stream (unconstrained syntax).

PADDING

public static final StreamID PADDING

Padding stream.

DSM_CC

public static final StreamID DSM_CC

DSMCC stream.

ISO_13522

public static final StreamID ISO_13522

ISO/IEC 13522 stream.

H_222_1_TYPE_A

public static final StreamID H_222_1_TYPE_A

H.222.1 type A stream.

H_222_1_TYPE_B

public static final StreamID H_222_1_TYPE_B

H.222.1 type B stream.

H_222_1_TYPE_C

public static final StreamID H_222_1_TYPE_C

H.222.1 type C stream.

H_222_1_TYPE_D

public static final StreamID H_222_1_TYPE_D

H.222.1 type D stream.

H_222_1_TYPE_E

public static final StreamID H_222_1_TYPE_E

H.222.1 type E stream.

ANCILLARY

public static final StreamID ANCILLARY

Ancillary stream (program stream data in a transport stream).

SL_PACKETIZED

public static final StreamID SL_PACKETIZED

ISO/IEC 14496-1 SL-packetized stream.

FLEX_MUX

public static final StreamID FLEX_MUX

ISO/IEC 14496-1 FlexMux stream.

METADATA

public static final StreamID METADATA

Metadata stream.

EXTENDED

public static final StreamID EXTENDED

Extended syntax stream.

PROGRAM_DIRECTORY

public static final StreamID PROGRAM_DIRECTORY

Program stream directory meta-stream.

encodedValue

private final int encodedValue

Constructor Detail

StreamID

private StreamID(int encodedValue)

Method Detail

audio

public static StreamID audio(int number)

Audio stream with a given number.

Parameters:

number - The number of the stream. Must be in range [0..31].

video

public static StreamID video(int number)

Video stream with a given number.

Parameters:

number - The number of the stream. Must be in range [0..15].

isAudioStream

public boolean isAudioStream()

Returns whether this stream identifier represents an audio stream.

Returns:

true if this stream is an audio stream

isVideoStream

public boolean isVideoStream()

Returns whether this stream identifier represents a video stream.

Returns:

true if this stream is a video stream

writeTo

public void writeTo(BitOutputStream stream)
             throws java.io.IOException

Writes the code to a bit stream.

Parameters:

stream - The stream to write to.

Throws:

java.io.IOException - Propagated from the stream write.

equals

public boolean equals(java.lang.Object a)

Overrides:

equals in class java.lang.Object

See Also:

Object.equals(Object)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

See Also:

Object.hashCode()