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77 lines
2.3 KiB
C++
77 lines
2.3 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2024 Johannes Pohl
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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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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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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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#pragma once
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// local headers
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#include "player.hpp"
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// 3rd party headers
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#include <oboe/LatencyTuner.h>
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#include <oboe/Oboe.h>
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// standard headers
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#include <vector>
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namespace player
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{
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static constexpr auto OBOE = "oboe";
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/// Android Oboe Audio Player
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/**
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* Player implementation for Android Oboe
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*/
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class OboePlayer : public Player, public oboe::AudioStreamDataCallback, public oboe::AudioStreamErrorCallback
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{
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public:
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/// c'tor
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OboePlayer(boost::asio::io_context& io_context, const ClientSettings::Player& settings, std::shared_ptr<Stream> stream);
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/// d'tor
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virtual ~OboePlayer();
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void start() override;
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void stop() override;
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protected:
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/// AudioStreamDataCallback::onAudioReady override
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oboe::DataCallbackResult onAudioReady(oboe::AudioStream* oboeStream, void* audioData, int32_t numFrames) override;
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/// AudioStreamErrorCallback::onErrorBeforeClose override
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void onErrorBeforeClose(oboe::AudioStream* oboeStream, oboe::Result error) override;
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/// AudioStreamErrorCallback::onErrorAfterClose override
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void onErrorAfterClose(oboe::AudioStream* oboeStream, oboe::Result error) override;
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protected:
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/// Open the oboe stream
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oboe::Result openStream();
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/// Get current audio playout delay
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double getCurrentOutputLatencyMillis() const;
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bool needsThread() const override;
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/// The oboe output stream
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std::shared_ptr<oboe::AudioStream> out_stream_;
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/// Latency tuner to optimize the latency
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std::unique_ptr<oboe::LatencyTuner> latency_tuner_;
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/// Audio data buffer used for chaning the bit depth
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std::vector<char> audio_data_;
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};
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} // namespace player
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