mirror of https://github.com/arendst/Tasmota.git
69 lines
2.2 KiB
C++
69 lines
2.2 KiB
C++
#include <Arduino.h>
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#include "AudioFileSourceSD.h"
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#include "AudioOutputSPDIF.h"
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#include "AudioGeneratorFLAC.h"
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// For this sketch, you need connected SD card with '.flac' music files in the root
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// directory. Some samples with various sampling rates are available from i.e.
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// Espressif Audio Development Framework at:
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// https://docs.espressif.com/projects/esp-adf/en/latest/design-guide/audio-samples.html
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//
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// On ESP8266 you might need to re-encode FLAC files with max '-2' compression level
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// (i.e. 1152 maximum block size) or you will run out of memory. FLAC files will be
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// slightly bigger but you don't loose audio quality with reencoding (lossles codec).
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// You may need a fast SD card. Set this as high as it will work (40MHz max).
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#define SPI_SPEED SD_SCK_MHZ(40)
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// On ESP32 you can adjust the SPDIF_OUT_PIN (GPIO number).
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// On ESP8266 it is fixed to GPIO3/RX0 and this setting has no effect
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#define SPDIF_OUT_PIN 27
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File dir;
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AudioFileSourceSD *source = NULL;
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AudioOutputSPDIF *output = NULL;
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AudioGeneratorFLAC *decoder = NULL;
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void setup() {
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Serial.begin(115200);
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Serial.println();
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delay(1000);
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audioLogger = &Serial;
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source = new AudioFileSourceSD();
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output = new AudioOutputSPDIF(SPDIF_OUT_PIN);
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decoder = new AudioGeneratorFLAC();
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// NOTE: SD.begin(...) should be called AFTER AudioOutputSPDIF()
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// to takover the the SPI pins if they share some with I2S
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// (i.e. D8 on Wemos D1 mini is both I2S BCK and SPI SS)
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#if defined(ESP8266)
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SD.begin(SS, SPI_SPEED);
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#else
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SD.begin();
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#endif
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dir = SD.open("/");
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}
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void loop() {
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if ((decoder) && (decoder->isRunning())) {
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if (!decoder->loop()) decoder->stop();
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} else {
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File file = dir.openNextFile();
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if (file) {
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if (String(file.name()).endsWith(".flac")) {
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source->close();
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if (source->open(file.name())) {
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Serial.printf_P(PSTR("Playing '%s' from SD card...\n"), file.name());
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decoder->begin(source, output);
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} else {
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Serial.printf_P(PSTR("Error opening '%s'\n"), file.name());
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}
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}
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} else {
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Serial.println(F("Playback form SD card done\n"));
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delay(1000);
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}
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}
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}
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