mirror of
https://github.com/badaix/snapcast
synced 2025-09-09 21:02:33 +02:00
108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/***
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This file is part of snapcast
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Copyright (C) 2014-2025 Johannes Pohl
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Copyright (C) 2025 aanno <aannoaanno@gmail.com>
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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 "pcm_stream.hpp"
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// 3rd party headers
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#include <boost/asio/io_context.hpp>
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#include <pipewire/pipewire.h>
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#include <spa/param/audio/format-utils.h>
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#include <spa/param/audio/raw.h>
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// standard headers
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#include <mutex>
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#include <thread>
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#include <vector>
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namespace streamreader
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{
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/// Reads and decodes PCM data from a PipeWire audio stream
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/**
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* Reads PCM from a PipeWire audio stream and passes the data to an encoder.
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* Implements EncoderListener to get the encoded data.
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* Data is passed to the PcmStream::Listener
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*/
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class PipeWireStream : public PcmStream
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{
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public:
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/// ctor. Encoded PCM data is passed to the PipeListener
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PipeWireStream(PcmStream::Listener* pcmListener, boost::asio::io_context& ioc, const ServerSettings& server_settings, const StreamUri& uri);
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~PipeWireStream() override;
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void start() override;
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void stop() override;
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protected:
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/// non-virtual version of stop(), for destructor
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void cleanup();
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private:
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// PipeWire callbacks
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static void on_process(void* userdata);
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static void on_state_changed(void* userdata, enum pw_stream_state old, enum pw_stream_state state, const char* error);
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static void on_param_changed(void* userdata, uint32_t id, const struct spa_pod* param);
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static void on_core_info(void* userdata, const struct pw_core_info* info);
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static void on_core_error(void* userdata, uint32_t id, int seq, int res, const char* message);
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void initPipeWire();
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void uninitPipeWire();
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void processAudio();
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// PipeWire structures
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struct pw_main_loop* pw_main_loop_;
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struct pw_context* pw_context_;
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struct pw_core* pw_core_;
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struct pw_stream* pw_stream_;
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// PipeWire event handlers
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struct pw_core_events core_events_;
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struct spa_hook core_listener_;
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struct pw_stream_events stream_events_;
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struct spa_hook stream_listener_;
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// Stream properties
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std::string target_device_;
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std::string stream_name_;
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bool capture_sink_;
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// Audio buffer management
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std::mutex buffer_mutex_;
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std::vector<uint8_t> temp_buffer_;
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// Timing and state
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bool first_;
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std::chrono::microseconds silence_;
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// Configuration
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bool send_silence_;
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std::chrono::milliseconds idle_threshold_;
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// Stream state
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enum pw_stream_state stream_state_;
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bool running_;
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// PipeWire thread
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std::thread pw_thread_;
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};
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} // namespace streamreader
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