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ESP streaming audio example for ESP32 adapted from ESP8266Audio example
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#include <Arduino.h> | |
#ifdef ESP32 | |
#include <WiFi.h> | |
#else | |
#include <ESP8266WiFi.h> | |
#endif | |
#include "AudioFileSourceICYStream.h" | |
#include "AudioFileSourceBuffer.h" | |
#include "AudioGeneratorMP3.h" | |
#include "AudioOutputI2S.h" | |
// To run,update the SSID info, and upload. Attach line-level speaker input to A0/DAC2 | |
// Enter your WiFi setup here: | |
const char *SSID = "..."; | |
const char *PASSWORD = "..."; | |
// Not so randomly picked URL | |
// Live stream jazz | |
const char *URL="http://jazz.streamr.ru/jazz-64.mp3"; | |
// With a little more basssssss | |
//const char *URL="http://trace.dnbradio.com:8000/dnbradio_main.mp3"; | |
// Old skool DnB from the Internet Archive | |
//const char *URL="https://ia801202.us.archive.org/17/items/Sniper_-_Drum_and_Bass/Sniper%20-%20Drum%20%26%20Bass%20-%20Side%20B.mp3"; | |
AudioGeneratorMP3 *mp3; | |
AudioFileSourceICYStream *file; | |
AudioFileSourceBuffer *buff; | |
AudioOutputI2S *out; | |
// Called when a metadata event occurs (i.e. an ID3 tag, an ICY block, etc. | |
void MDCallback(void *cbData, const char *type, bool isUnicode, const char *string) | |
{ | |
const char *ptr = reinterpret_cast<const char *>(cbData); | |
(void) isUnicode; // Punt this ball for now | |
// Note that the type and string may be in PROGMEM, so copy them to RAM for printf | |
char s1[32], s2[64]; | |
strncpy_P(s1, type, sizeof(s1)); | |
s1[sizeof(s1)-1]=0; | |
strncpy_P(s2, string, sizeof(s2)); | |
s2[sizeof(s2)-1]=0; | |
Serial.printf("METADATA(%s) '%s' = '%s'\n", ptr, s1, s2); | |
Serial.flush(); | |
} | |
// Called when there's a warning or error (like a buffer underflow or decode hiccup) | |
void StatusCallback(void *cbData, int code, const char *string) | |
{ | |
const char *ptr = reinterpret_cast<const char *>(cbData); | |
// Note that the string may be in PROGMEM, so copy it to RAM for printf | |
char s1[64]; | |
strncpy_P(s1, string, sizeof(s1)); | |
s1[sizeof(s1)-1]=0; | |
Serial.printf("STATUS(%s) '%d' = '%s'\n", ptr, code, s1); | |
Serial.flush(); | |
} | |
void setup() | |
{ | |
Serial.begin(115200); | |
delay(1000); | |
Serial.println("Connecting to WiFi"); | |
WiFi.disconnect(); | |
WiFi.softAPdisconnect(true); | |
WiFi.mode(WIFI_STA); | |
WiFi.begin(SSID, PASSWORD); | |
// Try forever | |
while (WiFi.status() != WL_CONNECTED) { | |
Serial.println("...Connecting to WiFi"); | |
delay(1000); | |
} | |
Serial.println("Connected"); | |
file = new AudioFileSourceICYStream(URL); | |
file->RegisterMetadataCB(MDCallback, (void*)"ICY"); | |
buff = new AudioFileSourceBuffer(file, 8096); | |
buff->RegisterStatusCB(StatusCallback, (void*)"buffer"); | |
out = new AudioOutputI2S(0, AudioOutputI2S::INTERNAL_DAC); | |
mp3 = new AudioGeneratorMP3(); | |
mp3->RegisterStatusCB(StatusCallback, (void*)"mp3"); | |
mp3->begin(buff, out); | |
} | |
void loop() | |
{ | |
static int lastms = 0; | |
if (mp3->isRunning()) { | |
if (millis()-lastms > 1000) { | |
lastms = millis(); | |
Serial.printf("Running for %d ms...\n", lastms); | |
Serial.flush(); | |
} | |
if (!mp3->loop()) mp3->stop(); | |
} else { | |
Serial.printf("MP3 done\n"); | |
delay(1000); | |
} | |
} |
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