Package org.jitsi.impl.neomedia.audiolevel

Class AudioLevelEffect2

  • All Implemented Interfaces:
    javax.media.Codec, javax.media.Controls, javax.media.Effect, javax.media.PlugIn
    public class AudioLevelEffect2
extends ControlsAdapter
implements javax.media.Effect
    An Effect implementation which calculates audio levels based on the samples in the Buffer and includes them in the buffer's headerExtension field in the SSRC audio level format specified in RFC6464. The class is based on AudioLevelEffect, but an important difference is that the actual calculation is performed in the same thread that calls process(javax.media.Buffer, javax.media.Buffer).
    Author:
    Boris Grozev, Damian Minkov, Emil Ivov, Lyubomir Marinov

    • Constructor Detail

      • AudioLevelEffect2

        public AudioLevelEffect2()
        Initializes a new AudioLevelEffect2.

    • Method Detail

      • getSupportedInputFormats

        public javax.media.Format[] getSupportedInputFormats()
        Lists all of the input formats that this codec accepts.
        Specified by:
        getSupportedInputFormats in interface javax.media.Codec
        Returns:
        An array that contains the supported input Formats.

      • getSupportedOutputFormats

        public javax.media.Format[] getSupportedOutputFormats​(javax.media.Format input)
        Lists the output formats that this codec can generate.
        Specified by:
        getSupportedOutputFormats in interface javax.media.Codec
        Parameters:
        input - The Format of the data to be used as input to the plug-in.
        Returns:
        An array that contains the supported output Formats.

      • setInputFormat

        public javax.media.Format setInputFormat​(javax.media.Format format)
        Sets the format of the data to be input to this codec.
        Specified by:
        setInputFormat in interface javax.media.Codec
        Parameters:
        format - The Format to be set.
        Returns:
        The Format that was set.

      • setOutputFormat

        public javax.media.Format setOutputFormat​(javax.media.Format format)
        Sets the format for the data this codec outputs.
        Specified by:
        setOutputFormat in interface javax.media.Codec
        Parameters:
        format - The Format to be set.
        Returns:
        The Format that was set.

      • process

        public int process​(javax.media.Buffer inputBuffer,
                   javax.media.Buffer outputBuffer)
        Performs the media processing defined by this codec.
        Specified by:
        process in interface javax.media.Codec
        Parameters:
        inputBuffer - The Buffer that contains the media data to be processed.
        outputBuffer - The Buffer in which to store the processed media data.
        Returns:
        BUFFER_PROCESSED_OK if the processing is successful.
        See Also:
        PlugIn

      • getName

        public String getName()
        Gets the name of this plug-in as a human-readable string.
        Specified by:
        getName in interface javax.media.PlugIn
        Returns:
        A String that contains the descriptive name of the plug-in.

      • open

        public void open()
        Specified by:
        open in interface javax.media.PlugIn

      • close

        public void close()
        Specified by:
        close in interface javax.media.PlugIn

      • reset

        public void reset()
        Specified by:
        reset in interface javax.media.PlugIn

      • isEnabled

        public boolean isEnabled()

      • setEnabled

        public void setEnabled​(boolean enabled)
        Enables or disables this AudioLevelEffect2 according to the value of enabled.
        Parameters:
        enabled - whether to enable or disabled this Effect.

      • setRtpHeaderExtensionId

        public void setRtpHeaderExtensionId​(byte rtpHeaderExtensionId)
        Sets the ID of the RTP header extension which will be added.
        Parameters:
        rtpHeaderExtensionId - the ID to set.