mirror of
https://github.com/DSheirer/sdrtrunk.git
synced 2026-11-11 08:07:24 -05:00
c81e6cccfa
consolidates left and right channels into a single playback channel. Implements continuous audio streaming using silence to fill the gaps to avoid mixer source data line start/stop issues. Code structure is ready to layer on multi-channel (ie 5.1 or 7.1) audio playback devices, but that hasn't been tested. Co-authored-by: denny <dennis.sheirer@gmail.com>
73 lines
2.1 KiB
Java
73 lines
2.1 KiB
Java
/*
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* *****************************************************************************
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* Copyright (C) 2014-2026 Dennis Sheirer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>
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* ****************************************************************************
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*/
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package io.github.dsheirer.audio.playback;
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import io.github.dsheirer.audio.AudioEvent;
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import java.nio.ByteBuffer;
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import java.util.List;
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import javax.sound.sampled.AudioFormat;
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/**
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* Abstract audio provider implementation
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*/
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public abstract class AudioProvider
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{
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/**
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* Audio format for this provider
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*/
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public abstract AudioFormat getAudioFormat();
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/**
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* Provide a non-null, 160-sample/20-millisecond buffer of audio at 8 kHz
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* @return audio buffer
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*/
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public abstract ByteBuffer getAudio();
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/**
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* Provides access to the audio channels for this provider
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* @return list of audio channels
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*/
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public abstract List<AudioChannel> getAudioChannels();
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/**
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* Notifies audio event listener(s) of the event
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* @param eventType to broadcast
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*/
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public void notify(AudioEvent.Type eventType)
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{
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for(AudioChannel audioChannel : getAudioChannels())
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{
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audioChannel.notify(eventType);
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}
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}
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/**
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* Disposes the audio channel to prepare for audio output changes or shutdown.
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*/
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public void dispose()
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{
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for(AudioChannel audioChannel: getAudioChannels())
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{
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audioChannel.dispose();
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}
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}
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}
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