Snapcast is a multiroom client-server audio player, where all clients are time synchronized with the server to play perfectly synced audio
- Opus and PCM decoding are currently supported
- Auto connect to snapcast server on network
- The functionality has been tested on an ESP32
- Memory efficient implementation, so that PSRAM is not needed
- Use any output device or DSP chain suppored by the Audio Tools
I have converted the snapclient from Jørgen Kragh Jakobsen to an Arduino Library and integrated my AudioTools project to be used to define the output devices.
Here is an example Arduino sketch that uses the Opus codec and outputs the audio with I2S:
#include "AudioTools.h"
#include "SnapClient.h"
#include "AudioCodecs/CodecOpus.h"
#define ARDUINO_LOOP_STACK_SIZE (10 * 1024)
OpusAudioDecoder opus;
I2SStream out;
SnapClient client(out, opus);
void setup() {
Serial.begin(115200);
// login to wifi
WiFi.begin(CONFIG_WIFI_SSID, CONFIG_WIFI_PASSWORD);
Serial.print("Connecting to WiFi ..");
while (WiFi.status() != WL_CONNECTED) {
Serial.print('.');
delay(1000);
}
// print ip address
Serial.println();
Serial.println(WiFi.localIP());
// setup I2S to define custom pins
auto cfg = out.defaultConfig();
config.pin_bck = 14;
config.pin_ws = 15;
config.pin_data = 22;
out.begin(cfg);
// start snap client
client.begin();
}
void loop() {
client.doLoop();
}- Audio Tools
- LibOpus (optional)
- LibFLAC.h (optinal)
- CodecVorbis (optional)
Configuration settings can be found in SnapConfig.h
For further information consult the class documentation or the examples.