/**
 * @file streams-i2s-i2s-2.ino
 * @brief Copy audio from I2S to I2S: We use 2 different i2s ports!
 * @author Phil Schatzmann
 * @copyright GPLv3
 */
#include "AudioTools.h"
 
AudioInfo info_in(44100, 2, 32);
AudioInfo info_out(44100, 2, 32);
I2SStream in;
I2SStream out;
//NumberFormatConverterStream nfc(out); //**did not work**
//StreamCopy copier(nfc, in); //**did not work**
StreamCopy copier(out, in); // copies sound into i2s
// Arduino Setup
void setup(void) { 
 // Open Serial 
 Serial.begin(115200);
 // change to Warning to improve the quality
 AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Warning); 
 //nfc.begin(32,16); //**did not work**
 // start I2S in - (PC soundcard -> PCM1808)
 Serial.println("starting I2S...");
 auto config_in = in.defaultConfig(RX_MODE);
 config_in.copyFrom(info_in); 
 config_in.i2s_format = I2S_STD_FORMAT;
 config_in.is_master = true;
 config_in.port_no = 0;
 config_in.pin_bck = 18;
 config_in.pin_ws = 21;
 config_in.pin_data = 19;
 config_in.pin_mck = 3;
 in.begin(config_in);
 // start I2S out - (PCM5102 -> stereo amp)
 auto config_out = out.defaultConfig(TX_MODE);
 config_out.copyFrom(info_out); 
 config_out.i2s_format = I2S_STD_FORMAT;
 config_out.is_master = true;
 config_out.port_no = 1;
 //config_out.bits_per_sample = 16; //**did not work**
 config_out.bits_per_sample = 32;
 config_out.pin_bck = 25;
 config_out.pin_ws = 13;
 config_out.pin_data = 26;
 out.begin(config_out);
 Serial.println("I2S started...");
}
// Arduino loop - copy sound to out 
void loop() {
 copier.copy();
}