org.jitsi.service.neomedia.control

Interface KeyFrameControl

All Known Implementing Classes:

KeyFrameControlAdapter

public interface KeyFrameControl

Represents a control over the key frame-related logic of a VideoMediaStream.

Author:

Lyubomir Marinov

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static interface	KeyFrameControl.KeyFrameRequestee Represents a way for the remote peer of a VideoMediaStream to request a key frame from its local peer.
static interface	KeyFrameControl.KeyFrameRequester Represents a way for a VideoMediaStream to request a key frame from its remote peer.

Method Summary

Modifier and Type	Method and Description
void	addKeyFrameRequestee(int index, KeyFrameControl.KeyFrameRequestee keyFrameRequestee) Adds a KeyFrameRequestee to be made available through this KeyFrameControl.
void	addKeyFrameRequester(int index, KeyFrameControl.KeyFrameRequester keyFrameRequester) Adds a KeyFrameRequester to be made available through this KeyFrameControl.
List<KeyFrameControl.KeyFrameRequestee>	getKeyFrameRequestees() Gets the KeyFrameRequestees made available through this KeyFrameControl.
List<KeyFrameControl.KeyFrameRequester>	getKeyFrameRequesters() Gets the KeyFrameRequesters made available through this KeyFrameControl.
boolean	keyFrameRequest() Notifies this KeyFrameControl that the remote peer of the associated VideoMediaStream has requested a key frame from the local peer.
boolean	removeKeyFrameRequestee(KeyFrameControl.KeyFrameRequestee keyFrameRequestee) Removes a KeyFrameRequestee to no longer be made available through this KeyFrameControl.
boolean	removeKeyFrameRequester(KeyFrameControl.KeyFrameRequester keyFrameRequester) Removes a KeyFrameRequester to no longer be made available through this KeyFrameControl.
boolean	requestKeyFrame(boolean urgent) Requests a key frame from the remote peer of the associated VideoMediaStream.

Method Detail

addKeyFrameRequestee

void addKeyFrameRequestee(int index,
                          KeyFrameControl.KeyFrameRequestee keyFrameRequestee)

Adds a KeyFrameRequestee to be made available through this KeyFrameControl.

Parameters:

index - the zero-based index at which keyFrameRequestee is to be added to the list of KeyFrameRequestees made available or -1 to have this KeyFrameControl choose at which index it is to be added in accord with its internal logic through this KeyFrameControl

keyFrameRequestee - the KeyFrameRequestee to be added to this KeyFrameControl so that it is made available through it

addKeyFrameRequester

void addKeyFrameRequester(int index,
                          KeyFrameControl.KeyFrameRequester keyFrameRequester)

Adds a KeyFrameRequester to be made available through this KeyFrameControl.

Parameters:

index - the zero-based index at which keyFrameRequester is to be added to the list of KeyFrameRequesters made available or -1 to have this KeyFrameControl choose at which index it is to be added in accord with its internal logic through this KeyFrameControl

keyFrameRequester - the KeyFrameRequester to be added to this KeyFrameControl so that it is made available through it

getKeyFrameRequestees

List<KeyFrameControl.KeyFrameRequestee> getKeyFrameRequestees()

Gets the KeyFrameRequestees made available through this KeyFrameControl.

Returns:

an unmodifiable list of KeyFrameRequestees made available through this KeyFrameControl

getKeyFrameRequesters

List<KeyFrameControl.KeyFrameRequester> getKeyFrameRequesters()

Gets the KeyFrameRequesters made available through this KeyFrameControl.

Returns:

an unmodifiable list of KeyFrameRequesters made available through this KeyFrameControl

keyFrameRequest

boolean keyFrameRequest()

Notifies this KeyFrameControl that the remote peer of the associated VideoMediaStream has requested a key frame from the local peer.

Returns:

true if the local peer has honored the request from the remote peer for a key frame; otherwise, false

removeKeyFrameRequestee

boolean removeKeyFrameRequestee(KeyFrameControl.KeyFrameRequestee keyFrameRequestee)

Removes a KeyFrameRequestee to no longer be made available through this KeyFrameControl.

Parameters:

keyFrameRequestee - the KeyFrameRequestee to be removed from this KeyFrameControl so that it is no longer made available through it

Returns:

true if keyFrameRequestee was found in this KeyFrameControl; otherwise, false

removeKeyFrameRequester

boolean removeKeyFrameRequester(KeyFrameControl.KeyFrameRequester keyFrameRequester)

Removes a KeyFrameRequester to no longer be made available through this KeyFrameControl.

Parameters:

keyFrameRequester - the KeyFrameRequester to be removed from this KeyFrameControl so that it is no longer made available through it

Returns:

true if keyFrameRequester was found in this KeyFrameControl; otherwise, false

requestKeyFrame

boolean requestKeyFrame(boolean urgent)

Requests a key frame from the remote peer of the associated VideoMediaStream.

Parameters:

urgent - true if the caller has determined that the need for a key frame is urgent and should not obey all constraints with respect to time between two subsequent requests for key frames

Returns:

true if a key frame was indeed requested from the remote peer of the associated VideoMediaStream in response to the call; otherwise, false