54 lines
1.6 KiB
Arduino
54 lines
1.6 KiB
Arduino
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// We use the decoding on the input side to provid pcm data
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#include "SPI.h"
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#include "SD.h"
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#include "AudioTools.h"
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#include "AudioTools/Communication/A2DPStream.h" // https://github.com/pschatzmann/ESP32-A2DP
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#include "AudioTools/AudioCodecs/CodecMP3Helix.h" // https://github.com/pschatzmann/codec-helix
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//#include "AudioTools/AudioLibs/AudioBoardStream.h" // for SPI pins
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File file;
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MP3DecoderHelix mp3; // or change to MP3DecoderMAD
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EncodedAudioStream decoder(&file, &mp3);
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BluetoothA2DPSource a2dp_source;
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const int chipSelect = SS; //PIN_AUDIO_KIT_SD_CARD_CS;
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// callback used by A2DP to provide the sound data - usually len is 128 2 channel int16 frames
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int32_t get_sound_data(uint8_t* data, int32_t size) {
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int32_t result = decoder.readBytes((uint8_t*)data, size);
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delay(1); // feed the dog
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return result;
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}
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// Arduino Setup
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void setup(void) {
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
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// open file
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//SPI.begin(PIN_AUDIO_KIT_SD_CARD_CLK, PIN_AUDIO_KIT_SD_CARD_MISO, PIN_AUDIO_KIT_SD_CARD_MOSI, PIN_AUDIO_KIT_SD_CARD_CS);
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SD.begin(chipSelect);
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file = SD.open("/test.mp3", FILE_READ);
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if (!file) {
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Serial.println("file failed");
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stop();
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}
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// make sure we have enough space for the pcm data
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decoder.transformationReader().resizeResultQueue(1024 * 8);
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if (!decoder.begin()) {
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Serial.println("decoder failed");
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stop();
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}
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// start the bluetooth
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Serial.println("starting A2DP...");
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a2dp_source.set_data_callback(get_sound_data);
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a2dp_source.start("LEXON MINO L");
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}
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// Arduino loop - repeated processing
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void loop() {
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delay(1000);
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}
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