mirror of
https://github.com/pschatzmann/arduino-audio-tools.git
synced 2024-09-21 18:37:28 +00:00
69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
/**
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* @file streams-sd_mp3-metadata.ino
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* @author Phil Schatzmann
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* @brief read MP3 stream from a SD drive and output metadata and audio!
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* The used mp3 file contains ID3 Metadata!
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* @date 2021-11-07
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*
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* @copyright Copyright (c) 2021
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*/
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// install https://github.com/pschatzmann/arduino-libhelix.git
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// install https://github.com/greiman/SdFat.git
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#include <SPI.h>
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#include <SdFat.h>
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#include "AudioTools.h"
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#include "AudioCodecs/CodecMP3Helix.h"
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// -> EncodedAudioStream -> I2SStream
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// URLStream -> MultiOutput -|
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// -> MetaDataOutput
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File audioFile;
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SdFs SD;
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MetaDataOutput outMeta; // final output of metadata
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I2SStream i2s; // I2S output
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EncodedAudioStream out2dec(&i2s, new MP3DecoderHelix()); // Decoding stream
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MultiOutput out;
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StreamCopy copier(out, audioFile); // copy url to decoder
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// callback for meta data
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void printMetaData(MetaDataType type, const char* str, int len){
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Serial.print("==> ");
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Serial.print(toStr(type));
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Serial.print(": ");
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Serial.println(str);
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}
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void setup(){
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Serial.begin(115200);
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AudioLogger::instance().begin(Serial, AudioLogger::Info);
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// setup multi output
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out.add(outMeta);
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out.add(out2dec);
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// setup file
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SD.begin(SdSpiConfig(PIN_CS, DEDICATED_SPI, SD_SCK_MHZ(2)));
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//audioFile = SD.open("/Music/Conquistadores.mp3");
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audioFile = SD.open("/test/002.mp3");
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// setup metadata
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outMeta.setCallback(printMetaData);
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outMeta.begin();
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// setup i2s
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auto config = i2s.defaultConfig(TX_MODE);
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i2s.begin(config);
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// setup I2S based on sampling rate provided by decoder
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out2dec.begin();
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}
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void loop(){
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copier.copy();
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}
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