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Added in API level 12

Summary: Inherited Constants | Ctors | Methods | Inherited Methods | [Expand All]

AudioStream

public class AudioStream
extends RtpStream

java.lang.Object
↳	android.net.rtp.RtpStream
	↳	android.net.rtp.AudioStream

An AudioStream is a RtpStream which carrys audio payloads over Real-time Transport Protocol (RTP). Two different classes are developed in order to support various usages such as audio conferencing. An AudioStream represents a remote endpoint which consists of a network mapping and a configured AudioCodec. On the other side, An AudioGroup represents a local endpoint which mixes all the AudioStreams and optionally interacts with the speaker and the microphone at the same time. The simplest usage includes one for each endpoints. For other combinations, developers should be aware of the limitations described in AudioGroup.

An AudioStream becomes busy when it joins an AudioGroup. In this case most of the setter methods are disabled. This is designed to ease the task of managing native resources. One can always make an AudioStream leave its AudioGroup by calling join(AudioGroup) with null and put it back after the modification is done.

Using this class requires INTERNET permission.

See also:

RtpStream
AudioGroup

Summary

Inherited constants

From class


    android.net.rtp.RtpStream

Public constructors
`AudioStream(InetAddress address)` Creates an AudioStream on the given local address.

Public methods
`AudioCodec`	`getCodec()` Returns the `AudioCodec`, or `null` if it is not set.
`int`	`getDtmfType()` Returns the RTP payload type for dual-tone multi-frequency (DTMF) digits, or `-1` if it is not enabled.
`AudioGroup`	`getGroup()` Returns the joined `AudioGroup`.
`final boolean`	`isBusy()` Returns `true` if the stream has already joined an `AudioGroup`.
`void`	`join(AudioGroup group)` Joins an `AudioGroup`.
`void`	`setCodec(AudioCodec codec)` Sets the `AudioCodec`.
`void`	`setDtmfType(int type)` Sets the RTP payload type for dual-tone multi-frequency (DTMF) digits.

Inherited methods

From class


  
    android.net.rtp.RtpStream

`void`	`associate(InetAddress address, int port)` Associates with a remote host.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`InetAddress`	`getLocalAddress()` Returns the network address of the local host.
`int`	`getLocalPort()` Returns the network port of the local host.
`int`	`getMode()` Returns the current mode.
`InetAddress`	`getRemoteAddress()` Returns the network address of the remote host or `null` if the stream is not associated.
`int`	`getRemotePort()` Returns the network port of the remote host or `-1` if the stream is not associated.
`boolean`	`isBusy()` Returns `true` if the stream is busy.
`void`	`release()` Releases allocated resources.
`void`	`setMode(int mode)` Changes the current mode.

From class


  
    java.lang.Object

`Object`	`clone()` Creates and returns a copy of this object.
`boolean`	`equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void`	`finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>`	`getClass()` Returns the runtime class of this `Object`.
`int`	`hashCode()` Returns a hash code value for the object.
`final void`	`notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void`	`notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String`	`toString()` Returns a string representation of the object.
`final void`	`wait(long millis, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void`	`wait(long millis)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void`	`wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.

Public constructors

AudioStream

Added in API level 12

AudioStream (InetAddress address)

Creates an AudioStream on the given local address. Note that the local port is assigned automatically to conform with RFC 3550.

Parameters
`address`	`InetAddress`: The network address of the local host to bind to.

Throws
`SocketException`	if the address cannot be bound or a problem occurs during binding.

Public methods

getCodec

Added in API level 12

AudioCodec getCodec ()

Returns the AudioCodec, or null if it is not set.

Returns
`AudioCodec`

See also:

setCodec(AudioCodec)

getDtmfType

Added in API level 12

int getDtmfType ()

Returns the RTP payload type for dual-tone multi-frequency (DTMF) digits, or -1 if it is not enabled.

Returns
`int`

See also:

setDtmfType(int)

getGroup

Added in API level 12

AudioGroup getGroup ()

Returns the joined AudioGroup.

Returns
`AudioGroup`

isBusy

Added in API level 12

boolean isBusy ()

Returns true if the stream has already joined an AudioGroup.

Returns
`boolean`

join

Added in API level 12

void join (AudioGroup group)

Joins an AudioGroup. Each stream can join only one group at a time. The group can be changed by passing a different one or removed by calling this method with null.

Parameters
`group`	`AudioGroup`: The AudioGroup to join or `null` to leave.

Throws
`IllegalStateException`	if the stream is not properly configured.

See also:

AudioGroup

setCodec

Added in API level 12

void setCodec (AudioCodec codec)

Sets the AudioCodec.

Parameters
`codec`	`AudioCodec`: The AudioCodec to be used.

Throws
`IllegalArgumentException`	if its type is used by DTMF.
`IllegalStateException`	if the stream is busy.

setDtmfType

Added in API level 12

void setDtmfType (int type)

Sets the RTP payload type for dual-tone multi-frequency (DTMF) digits. The primary usage is to send digits to the remote gateway to perform certain tasks, such as second-stage dialing. According to RFC 2833, the RTP payload type for DTMF is assigned dynamically, so it must be in the range of 96 and 127. One can use -1 to disable DTMF and free up the previous assigned type. This method cannot be called when the stream already joined an AudioGroup.

Parameters
`type`	`int`: The RTP payload type to be used or `-1` to disable it.

Throws
`IllegalArgumentException`	if the type is invalid or used by codec.
`IllegalStateException`	if the stream is busy.

See also:

sendDtmf(int)