AudioQt.hxx

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#pragma once
 
/*
  Copyright (c) 2012, 2025, 2026 Matthew H. Reilly (kb1vc)
  All rights reserved.
 
  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:
 
  Redistributions of source code must retain the above copyright
  notice, this list of conditions and the following disclaimer.
  Redistributions in binary form must reproduce the above copyright
  notice, this list of conditions and the following disclaimer in
  the documentation and/or other materials provided with the
  distribution.
 
  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
 
#include "SoDaBase.hxx"
#include "SoDaThread.hxx"
#include "AudioIfc.hxx"
#include "UDSockets.hxx"
#include "../common/CircularBuffer.hxx"
#include <string>
#include <mutex>
#include <iostream>
#include <stdexcept>
#include <memory>
#include <tuple>
 
namespace SoDa {
 
  class AudioQt;
  typedef std::shared_ptr<AudioQt> AudioQtPtr;
 

  class AudioQt : public AudioIfc, public Thread {
  protected:
    AudioQt(unsigned int _sample_rate,
        unsigned int _sample_count_hint = 1024,
        std::string audio_sock_basename = std::string("soda_"));
 
  public:
    static AudioQtPtr make(unsigned int _sample_rate,
               unsigned int _sample_count_hint = 1024,
               std::string audio_sock_basename = std::string("soda_")) {
      auto ret = std::shared_ptr<AudioQt>(new AudioQt(_sample_rate,
                              _sample_count_hint,
                              audio_sock_basename));
      ret->registerThread(ret);
      return ret; 
    }
    
    ~AudioQt() {
    }
    
    int send(void * buf, unsigned int len, bool when_ready = false);

    bool sendBufferReady(unsigned int len);

    virtual int recv(std::vector<float> & buf, bool when_ready = false);

    bool recvBufferReady(unsigned int len);

    void sleepOut() {
    }

    void wakeOut() {
    }
        
    virtual void sleepIn();
    virtual void wakeIn();
 
    std::string currentPlaybackState() {
      return std::string("Fabulous");
    }
 
    virtual std::string currentCaptureState() {
      return std::string("NOT IMPLEMENTED");
    }

    void run();
 
    void subscribeToMailBoxes(const std::vector<MailBoxBasePtr> & mailboxes);
    
  protected:
    void setupNetwork(std::string audio_sock_basename) ;
 
  private:
    std::shared_ptr<SoDa::UD::ServerSocket> audio_rx_socket;
    std::shared_ptr<SoDa::UD::ServerSocket> audio_tx_socket;
 
    // the TX process monitors the command bus for TX on/off.
    CmdMBoxPtr cmd_stream; 
    CmdMBox::Subscription cmd_subs; 
 
    bool ignore_tx_data;
 
    // Incoming TX audio ring buffer: absorbs bursts from QAudioSource and
    // feeds BaseBandTX at a steady rate, analogous to AudioRXListener's
    // audio_cbuffer_p on the RX side.
    SoDa::CircularBuffer<char> * audio_cbuffer_p;
 
    // debug assistance
    float ang;
    float ang_incr;
 
  };
}