Package org.jitsi.impl.neomedia.protocol

Class RewritablePushBufferDataSource

  • All Implemented Interfaces:
    javax.media.Controls, javax.media.Duration, javax.media.protocol.CaptureDevice, javax.media.protocol.Controls, InbandDTMFDataSource, MuteDataSource
    public class RewritablePushBufferDataSource
extends PushBufferDataSourceDelegate<javax.media.protocol.PushBufferDataSource>
implements MuteDataSource, InbandDTMFDataSource
    Implements a PushBufferDataSource wrapper which provides mute support for the wrapped instance.

    Because the class wouldn't work for our use case without it, CaptureDevice is implemented and is being delegated to the wrapped DataSource (if it supports the interface in question).

    Author:
    Lyubomir Marinov

    • Constructor Detail

      • RewritablePushBufferDataSource

        public RewritablePushBufferDataSource​(javax.media.protocol.PushBufferDataSource dataSource)
        Initializes a new RewritablePushBufferDataSource instance which is to provide mute support for a specific PushBufferDataSource.
        Parameters:
        dataSource - the PushBufferDataSource the new instance is to provide mute support for

    • Method Detail

      • getControl

        public Object getControl​(String controlType)
        Implements Controls.getControl(String). Delegates to the wrapped DataSource. Overrides CaptureDeviceDelegatePushBufferDataSource.getControl(String) because the wrapped DataSource may not be a CaptureDevice yet it still needs to give access to the control. Overrides the super implementation to include the type hierarchy of the very wrapped dataSource instance into the search for the specified controlType.
        Specified by:
        getControl in interface javax.media.Controls
        Overrides:
        getControl in class PushBufferDataSourceDelegate<javax.media.protocol.PushBufferDataSource>
        Parameters:
        controlType - a String value which names the type of the control to be retrieved
        Returns:
        an Object which represents the control of the requested controlType of the wrapped DataSource

      • getStreams

        public javax.media.protocol.PushBufferStream[] getStreams()
        Implements PushBufferDataSource.getStreams(). Wraps the streams of the wrapped PushBufferDataSource into MutePushBufferStream instances in order to provide mute support to them.
        Specified by:
        getStreams in class PushBufferDataSourceDelegate<javax.media.protocol.PushBufferDataSource>
        Returns:
        an array of PushBufferStream instances with enabled mute support

      • isMute

        public boolean isMute()
        Determines whether this DataSource is mute.
        Specified by:
        isMute in interface MuteDataSource
        Returns:
        true if this DataSource is mute; otherwise, false

      • mute

        public static void mute​(javax.media.Buffer buffer)
        Replaces the media data contained in a specific Buffer with a compatible representation of silence.
        Parameters:
        buffer - the Buffer the data contained in which is to be replaced with silence

      • setMute

        public void setMute​(boolean mute)
        Sets the mute state of this DataSource.
        Specified by:
        setMute in interface MuteDataSource
        Parameters:
        mute - true to mute this DataSource; otherwise, false

      • isSendingDTMF

        public boolean isSendingDTMF()
        Determines whether this DataSource sends a DTMF tone.
        Returns:
        true if this DataSource is sending a DTMF tone; otherwise, false.

      • sendDTMF

        public static void sendDTMF​(javax.media.Buffer buffer,
                            DTMFInbandTone tone)
        Replaces the media data contained in a specific Buffer with an inband DTMF tone signal.
        Parameters:
        buffer - the Buffer the data contained in which is to be replaced with the DTMF tone
        tone - the DMFTTone to send via inband DTMF signal.