MetaDataFilter

Author: pschatzmann

examples/examples-custom-boards/cross_band_handy_walkie_talkie/cross_band_handy_walkie_talkie.ino

@@ -12,43 +12,38 @@
 #include "SD.h"
 
 AudioInfo info(32000, 2, 16);
-SineWaveGenerator<int16_t> sineWave(32000);                // subclass of SoundGenerator with max amplitude of 32000
-GeneratedSoundStream<int16_t> sound(sineWave);             // Stream generated from sine wave
-AudioBoardStream out(AudioKitEs8388V1);
-StreamCopy copier(out, sound);                             // copies sound into i2s
+SineWaveGenerator<int16_t> sineWave(
+    32000);  // subclass of SoundGenerator with max amplitude of 32000
+GeneratedSoundStream<int16_t> sound(
+    sineWave);  // Stream generated from sine wave
+DriverPins my_pins;
+AudioBoard board(AudioDriverES8388, my_pins);
+AudioBoardStream out(board);
+StreamCopy copier(out, sound);  // copies sound into i2s
 
 // Arduino Setup
 void setup(void) {
   // Open Serial
   Serial.begin(115200);
-  while(!Serial);
+  while (!Serial);
   AudioLogger::instance().begin(Serial, AudioLogger::Info);
-  //LOGLEVEL_AUDIOKIT = AudioKitDebug;
+
+  // sd pins: clk,  miso,  mosi,cs,
+  my_pins.addSPI(ESP32PinsSD{PinFunction::SD, 44, 42, 43, 2, SPI});
+  // add i2c codec pins: scl, sda, port, frequency
+  my_pins.addI2C(PinFunction::CODEC, 35, 36);
+  // add i2s pins: mclk, bck, ws,data_out, data_in ,(port)
+  my_pins.addI2S(PinFunction::CODEC, 47, 21, 12, 14, 11);
 
   // start I2S
   Serial.println("starting I2S...");
   auto config = out.defaultConfig(TX_MODE);
   config.copyFrom(info);
-  config.sd_active = false;
-  // i2c
-  config.pins.i2c_sda = 36;
-  config.pins.i2c_scl = 35;
-  // i2s
-  config.pin_mck = 47;
-  config.pin_bck = 21;
-  config.pin_ws = 12;
-  config.pin_data = 14;
-  config.pin_data_rx = 11;
-
-  //config.sd_active = false;
-  config.pins.sd_cs = 2;
-  config.pins.sd_miso = 42;
-  config.pins.sd_mosi = 43;
-  config.pins.sd_clk = 44;
-  out.begin(config, false);
+  config.sd_active = true;
+  out.begin(config);
 
   // check SD drive
-  if(!SD.begin(config.pins.sd_cs)){
+  if (!SD.begin(2)) {
     Serial.println("Card Mount Failed");
     stop();
   }
@@ -59,6 +54,4 @@ void setup(void) {
 }
 
 // Arduino loop - copy sound to out
-void loop() {
-  copier.copy();
-}
+void loop() { copier.copy(); }

src/AudioTools/AudioCodecs/CodecMP3Helix.h

@@ -22,7 +22,6 @@ class MP3DecoderHelix : public AudioDecoder  {
             mp3 = new libhelix::MP3DecoderHelix();
             if (mp3!=nullptr){
                 mp3->setReference(this);
-                filter.setDecoder(mp3);
             } else {
                 LOGE("Not enough memory for libhelix");
             }
@@ -37,7 +36,6 @@ class MP3DecoderHelix : public AudioDecoder  {
             mp3 = new libhelix::MP3DecoderHelix();
             if (mp3!=nullptr){
                 mp3->setReference(this);
-                filter.setDecoder(mp3);
             } else {
                 LOGE("Not enough memory for libhelix");
             }
@@ -56,7 +54,6 @@ class MP3DecoderHelix : public AudioDecoder  {
             mp3 = new libhelix::MP3DecoderHelix();
             if (mp3!=nullptr){
                 mp3->setReference(this);
-                filter.setDecoder(mp3);
             } else {
                 LOGE("Not enough memory for libhelix");
             }
@@ -83,7 +80,6 @@ class MP3DecoderHelix : public AudioDecoder  {
             if (mp3!=nullptr) {
                 //mp3->setDelay(CODEC_DELAY_MS);   
                 mp3->begin();
-                filter.begin();
             } 
             return true;
         }
@@ -111,7 +107,7 @@ class MP3DecoderHelix : public AudioDecoder  {
         size_t write(const uint8_t* data, size_t len) {
             LOGD("%s: %zu", LOG_METHOD, len);
             if (mp3==nullptr) return 0;
-            return use_filter ? filter.write((uint8_t*)data, len): mp3->write((uint8_t*)data, len);
+            return mp3->write((uint8_t*)data, len);
         }
 
         /// checks if the class is active 
@@ -146,16 +142,6 @@ class MP3DecoderHelix : public AudioDecoder  {
             }
         }
 
-        /// Activates a filter that makes sure that helix does not get any metadata segments
-        void setFilterMetaData(bool filter){
-            use_filter = filter;
-        }
-        
-        /// Check if the metadata filter is active
-        bool isFilterMetaData() {
-            return use_filter;
-        }
-
         /// Provides the maximum frame size - this is allocated on the heap and you can reduce the heap size my minimizing this value
         size_t maxFrameSize() {
             return mp3->maxFrameSize();
@@ -177,8 +163,6 @@ class MP3DecoderHelix : public AudioDecoder  {
         }
     protected:
         libhelix::MP3DecoderHelix *mp3=nullptr;
-        MetaDataFilter<libhelix::MP3DecoderHelix> filter;
-        bool use_filter = false;
 
 };