Specifies the I2S port

src/Audio.cpp

@@ -154,7 +154,7 @@ uint32_t AudioBuffer::getReadPos() {
     return m_readPtr - m_buffer;
 }
 //---------------------------------------------------------------------------------------------------------------------
-Audio::Audio(bool internalDAC /* = false */, uint8_t channelEnabled /* = I2S_DAC_CHANNEL_BOTH_EN */ ) {
+Audio::Audio(bool internalDAC /* = false */, uint8_t channelEnabled /* = I2S_DAC_CHANNEL_BOTH_EN */, uint8_t i2sPort) {
 
     //    build-in-DAC works only with ESP32 (ESP32-S3 has no build-in-DAC)
     //    build-in-DAC last working Arduino Version: 2.0.0-RC2
@@ -169,7 +169,7 @@ Audio::Audio(bool internalDAC /* = false */, uint8_t channelEnabled /* = I2S_DAC
     m_f_channelEnabled = channelEnabled;
     m_f_internalDAC = internalDAC;
     //i2s configuration
-    m_i2s_num = I2S_NUM_0; // i2s port number
+    m_i2s_num = i2sPort; // i2s port number
     m_i2s_config.sample_rate          = 16000;
     m_i2s_config.bits_per_sample      = I2S_BITS_PER_SAMPLE_16BIT;
     m_i2s_config.channel_format       = I2S_CHANNEL_FMT_RIGHT_LEFT;
@@ -4178,6 +4178,10 @@ uint8_t Audio::getVolume() {
     return m_vol;
 }
 //---------------------------------------------------------------------------------------------------------------------
+uint8_t Audio::getI2sPort() {
+    return m_i2s_num;
+}
+//---------------------------------------------------------------------------------------------------------------------
 int32_t Audio::Gain(int16_t s[2]) {
     int32_t v[2];
     float step = (float)m_vol /64;

src/Audio.h

@@ -155,7 +155,7 @@ class Audio : private AudioBuffer{
     AudioBuffer InBuff; // instance of input buffer
 
 public:
-    Audio(bool internalDAC = false, uint8_t channelEnabled = 3); // #99
+    Audio(bool internalDAC = false, uint8_t channelEnabled = 3, uint8_t i2sPort = I2S_NUM_0); // #99
     ~Audio();
     void setBufsize(int rambuf_sz, int psrambuf_sz);
     bool connecttohost(const char* host, const char* user = "", const char* pwd = "");
@@ -177,6 +177,7 @@ public:
     void setBalance(int8_t bal = 0);
     void setVolume(uint8_t vol);
     uint8_t getVolume();
+	uint8_t getI2sPort();
 
     uint32_t getAudioDataStartPos();
     uint32_t getFileSize();