RemoteAudioTrack.kt
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/*
* Copyright 2023-2024 LiveKit, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io.livekit.android.room.track
import io.livekit.android.webrtc.peerconnection.executeBlockingOnRTCThread
import livekit.org.webrtc.AudioTrack
import livekit.org.webrtc.AudioTrackSink
import livekit.org.webrtc.RtpReceiver
/**
* A representation of a remote audio track.
*/
class RemoteAudioTrack(
name: String,
rtcTrack: AudioTrack,
internal val receiver: RtpReceiver,
) : io.livekit.android.room.track.AudioTrack(name, rtcTrack) {
/**
* Adds a sink that receives the audio bytes and related information
* for this audio track. Repeated calls using the same sink will
* only add the sink once.
*
* Implementations should copy the audio data into a local copy if they wish
* to use the data after this function returns.
*/
fun addSink(sink: AudioTrackSink) {
executeBlockingOnRTCThread {
rtcTrack.addSink(sink)
}
}
/**
* Removes a previously added sink.
*/
fun removeSink(sink: AudioTrackSink) {
executeBlockingOnRTCThread {
rtcTrack.removeSink(sink)
}
}
/**
* Sets the volume.
*
* @param volume a gain value in the range 0 to 10.
* * 0 will mute the track
* * 1 will play the track normally
* * values greater than 1 will boost the volume of the track.
*/
fun setVolume(volume: Double) {
executeBlockingOnRTCThread {
rtcTrack.setVolume(volume)
}
}
}