AudioPlayerProtocol.h

#pragma once
#include "AudioTools/CoreAudio/AudioPlayer.h"
 
namespace audio_tools {
 
/***
 * @brief  Abstract class for protocol to control the audio player.
 * @ingroup player
 * @author Phil Schatzmann
 */
class AudioPlayerProtocol {
 public:
  virtual bool processCommand(const char* input, Print& result) = 0;
 
  virtual bool processCommand(Stream& input, Print& result) {
    char buffer[max_input_buffer_size];
    int len = readLine(input, buffer, max_input_buffer_size);
    if (len == 0) return false;
    return processCommand(buffer, result);
  }
  virtual bool processCommand(Stream& input, Print& result) {…}
  virtual void setPlayer(AudioPlayer& player) { p_player = &player; }
 
  void setMaxInputBufferSize(int size) { max_input_buffer_size = size; }
 
 protected:
  AudioPlayer* p_player = nullptr;
  int max_input_buffer_size = 256;
 
  int readLine(Stream& in, char* str, int max) {
    int index = 0;
    if (in.available() > 0) {
      index = in.readBytesUntil('\n', str, max);
      str[index] = '\0';  // null termination character
    }
    return index;
  }
  int readLine(Stream& in, char* str, int max) {…}
};
class AudioPlayerProtocol {…};
 
}  // namespace audio_tools