/* * This file is part of AckCord, licensed under the MIT License (MIT). * * Copyright (c) 2019 Katrix * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in all * copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ package ackcord.lavaplayer import scala.concurrent.duration._ import akka.NotUsed import akka.stream.scaladsl.Source import akka.stream.stage.{GraphStage, GraphStageLogic, OutHandler, TimerGraphStageLogicWithLogging} import akka.stream.{Attributes, Outlet, SourceShape} import akka.util.ByteString import com.sedmelluq.discord.lavaplayer.player.AudioPlayer class LavaplayerSource(player: AudioPlayer) extends GraphStage[SourceShape[ByteString]] { val out: Outlet[ByteString] = Outlet("LavaplayerSource.out") override def shape: SourceShape[ByteString] = SourceShape(out) override def createLogic(inheritedAttributes: Attributes): GraphStageLogic = new TimerGraphStageLogicWithLogging(shape) with OutHandler { override def onPull(): Unit = tryPushFrame() override protected def onTimer(timerKey: Any): Unit = timerKey match { case "RetryProvide" => tryPushFrame() } def tryPushFrame(): Unit = { val frame = player.provide() if (frame != null) { push(out, ByteString.fromArray(frame.getData)) //log.debug("Sending data") } else { //log.debug("Scheduling attempt to provide frame") scheduleOnce("RetryProvide", 20.millis) } } setHandler(out, this) } } object LavaplayerSource { def source(player: AudioPlayer): Source[ByteString, NotUsed] = Source.fromGraph(new LavaplayerSource(player)) }