org.kurento.client

Enum DSCPValue

java.lang.Object

java.lang.Enum<DSCPValue>

org.kurento.client.DSCPValue

All Implemented Interfaces:

Serializable, Comparable<DSCPValue>

public enum DSCPValue
extends Enum<DSCPValue>

Possible DSCP values

WebRTC recommended values are taken from RFC 8837 https://datatracker.ietf.org/doc/html/rfc8837#section-5 , These are the values from AUDIO_VERYLOW to DATA_HIGH. First element in the name indicates kind of traffic that it should apply to, the second indicates relative priority. For video, a third field would indicate if the traffic is intended for high throughput or not. As indicated on RFC 8837 section 5 diagram: +=======================+==========+=====+============+============+ | Flow Type | Very Low | Low | Medium | High | +=======================+==========+=====+============+============+ | Audio | LE (1) | DF | EF (46) | EF (46) | | | | (0) | | | +-----------------------+----------+-----+------------+------------+ +-----------------------+----------+-----+------------+------------+ | Interactive Video | LE (1) | DF | AF42, AF43 | AF41, AF42 | | with or without Audio | | (0) | (36, 38) | (34, 36) | +-----------------------+----------+-----+------------+------------+ +-----------------------+----------+-----+------------+------------+ | Non-Interactive Video | LE (1) | DF | AF32, AF33 | AF31, AF32 | | with or without Audio | | (0) | (28, 30) | (26, 28) | +-----------------------+----------+-----+------------+------------+ +-----------------------+----------+-----+------------+------------+ | Data | LE (1) | DF | AF11 | AF21 | | | | (0) | | | +-----------------------+----------+-----+------------+------------+ As indicated also in RFC, non interactive video is not considered

Apart from the WebRTC recommended values, we also include all possible values are referenced in http://www.iana.org/assignments/dscp-registry/dscp-registry.xml of course some of those values are synonyms for the WebRTC recommended ones, they are included mainly for completeness

And as a last point, we include a shorthand for Chrome supported markings for low (CS0), very low (CS1), medium (CS7) and high (CS7) priorities in priority property for RTCRtpSender parameters. See https://developer.mozilla.org/en-US/docs/Web/API/RTCRtpSender/setParameters

This only covers outgoing network packets from KMS, to complete the solution, DSCP must be also requested on client, unfortunately for traffic on the other direction, this must be requested to the browser or client. On browser, the client application needs to use the following API https://www.w3.org/TR/webrtc-priority/

Enum Constant Summary

Enum Constants

Enum Constant and Description
AF11
AF12
AF13
AF21
AF22
AF23
AF31
AF32
AF33
AF41
AF42
AF43
AUDIO_HIGH
AUDIO_LOW
AUDIO_MEDIUM
AUDIO_VERYLOW
CHROME_HIGH
CHROME_LOW
CHROME_MEDIUM
CHROME_VERYLOW
CS0
CS1
CS2
CS3
CS4
CS5
CS6
CS7
DATA_HIGH
DATA_LOW
DATA_MEDIUM
DATA_VERYLOW
EF
LE
NO_DSCP
NO_VALUE
VIDEO_HIGH
VIDEO_HIGH_THROUGHPUT
VIDEO_LOW
VIDEO_MEDIUM
VIDEO_MEDIUM_THROUGHPUT
VIDEO_VERYLOW
VOICEADMIT

Method Summary

Modifier and Type	Method and Description
static DSCPValue	valueOf(String name) Returns the enum constant of this type with the specified name.
static DSCPValue[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

NO_DSCP

public static final DSCPValue NO_DSCP

NO_VALUE

public static final DSCPValue NO_VALUE

AUDIO_VERYLOW

public static final DSCPValue AUDIO_VERYLOW

AUDIO_LOW

public static final DSCPValue AUDIO_LOW

AUDIO_MEDIUM

public static final DSCPValue AUDIO_MEDIUM

AUDIO_HIGH

public static final DSCPValue AUDIO_HIGH

VIDEO_VERYLOW

public static final DSCPValue VIDEO_VERYLOW

VIDEO_LOW

public static final DSCPValue VIDEO_LOW

VIDEO_MEDIUM

public static final DSCPValue VIDEO_MEDIUM

VIDEO_MEDIUM_THROUGHPUT

public static final DSCPValue VIDEO_MEDIUM_THROUGHPUT

VIDEO_HIGH

public static final DSCPValue VIDEO_HIGH

VIDEO_HIGH_THROUGHPUT

public static final DSCPValue VIDEO_HIGH_THROUGHPUT

DATA_VERYLOW

public static final DSCPValue DATA_VERYLOW

DATA_LOW

public static final DSCPValue DATA_LOW

DATA_MEDIUM

public static final DSCPValue DATA_MEDIUM

DATA_HIGH

public static final DSCPValue DATA_HIGH

CHROME_HIGH

public static final DSCPValue CHROME_HIGH

CHROME_MEDIUM

public static final DSCPValue CHROME_MEDIUM

CHROME_LOW

public static final DSCPValue CHROME_LOW

CHROME_VERYLOW

public static final DSCPValue CHROME_VERYLOW

CS0

public static final DSCPValue CS0

CS1

public static final DSCPValue CS1

CS2

public static final DSCPValue CS2

CS3

public static final DSCPValue CS3

CS4

public static final DSCPValue CS4

CS5

public static final DSCPValue CS5

CS6

public static final DSCPValue CS6

CS7

public static final DSCPValue CS7

AF11

public static final DSCPValue AF11

AF12

public static final DSCPValue AF12

AF13

public static final DSCPValue AF13

AF21

public static final DSCPValue AF21

AF22

public static final DSCPValue AF22

AF23

public static final DSCPValue AF23

AF31

public static final DSCPValue AF31

AF32

public static final DSCPValue AF32

AF33

public static final DSCPValue AF33

AF41

public static final DSCPValue AF41

AF42

public static final DSCPValue AF42

AF43

public static final DSCPValue AF43

EF

public static final DSCPValue EF

VOICEADMIT

public static final DSCPValue VOICEADMIT

LE

public static final DSCPValue LE

Method Detail

values

public static DSCPValue[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (DSCPValue c : DSCPValue.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static DSCPValue valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null