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112 lines
3.5 KiB
C++
112 lines
3.5 KiB
C++
/*
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Copyright © 2019 by The qTox Project Contributors
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This file is part of qTox, a Qt-based graphical interface for Tox.
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qTox is libre 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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qTox 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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You should have received a copy of the GNU General Public License
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along with qTox. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <cassert>
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#include <QObject>
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#include "util/interface.h"
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/**
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* @brief The IAudioSink class represents an interface to devices that can play audio.
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*
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* @enum IAudioSink::Sound
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* @brief Provides the different sounds for use in the getSound function.
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* @see getSound
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*
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* @value NewMessage Returns the new message notification sound.
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* @value Test Returns the test sound.
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* @value IncomingCall Returns the incoming call sound.
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* @value OutgoingCall Returns the outgoing call sound.
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*
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* @fn QString IAudioSink::getSound(Sound s)
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* @brief Function to get the path of the requested sound.
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*
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* @param s Name of the sound to get the path of.
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* @return The path of the requested sound.
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*
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* @fn void IAudioSink::playAudioBuffer(const int16_t* data, int samples,
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* unsigned channels, int sampleRate)
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* @brief adds a number of audio frames to the play buffer
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*
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* @param[in] data 16bit mono or stereo PCM data with alternating channel
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* mapping for stereo (LRLR)
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* @param[in] samples number of samples per channel
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* @param[in] channels number of channels, currently 1 or 2 is supported
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* @param[in] sampleRate sample rate in Hertz
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*
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* @fn void IAudioSink::playMono16Sound(const Sound& sound)
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* @brief Play a 44100Hz mono 16bit PCM sound from the builtin sounds.
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*
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* @param[in] sound The sound to play
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*
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* @fn void IAudioSink::startLoop()
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* @brief starts looping the sound played with playMono16Sound(...)
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*
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* @fn void IAudioSink::stopLoop()
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* @brief stops looping the sound played with playMono16Sound(...)
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*
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*/
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class IAudioSink
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{
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public:
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enum class Sound
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{
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NewMessage,
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Test,
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IncomingCall,
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OutgoingCall,
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CallEnd
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};
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inline static QString getSound(Sound s)
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{
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switch (s) {
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case Sound::Test:
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return QStringLiteral(":/audio/notification.s16le.pcm");
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case Sound::NewMessage:
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return QStringLiteral(":/audio/notification.s16le.pcm");
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case Sound::IncomingCall:
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return QStringLiteral(":/audio/ToxIncomingCall.s16le.pcm");
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case Sound::OutgoingCall:
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return QStringLiteral(":/audio/ToxOutgoingCall.s16le.pcm");
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case Sound::CallEnd:
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return QStringLiteral(":/audio/ToxEndCall.s16le.pcm");
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}
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assert(false);
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return {};
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}
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virtual ~IAudioSink() = default;
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virtual void playAudioBuffer(const int16_t* data, int samples, unsigned channels,
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int sampleRate) const = 0;
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virtual void playMono16Sound(const Sound& sound) = 0;
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virtual void startLoop() = 0;
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virtual void stopLoop() = 0;
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virtual operator bool() const = 0;
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signals:
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DECLARE_SIGNAL(finishedPlaying, void);
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DECLARE_SIGNAL(invalidated, void);
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};
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