46 lines
1008 B
C++
46 lines
1008 B
C++
/**
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* @file test-codec-alac.ino
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* @author Phil Schatzmann
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* @brief generate sine wave -> encoder -> decoder -> audiokit (i2s)
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* @version 0.1
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*
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* @copyright Copyright (c) 2025
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*
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*/
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#include "AudioTools.h"
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#include "AudioTools/AudioCodecs/MP4Parser.h"
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#include "SD.h"
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MP4Parser parser;
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File file;
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void setup() {
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Serial.begin(115200);
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AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
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if (!SD.begin()) {
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Serial.println("SD Card initialization failed!");
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return;
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}
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file = SD.open("/home/pschatzmann/Music/m4a/aac.m4a");
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if (!file.isOpen()) {
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Serial.println("Failed to open file!");
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return;
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}
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parser.begin();
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Serial.println("MP4 Boxes:");
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}
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void loop() {
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char buffer[1024];
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int to_read = min(sizeof(buffer), parser.availableForWrite());
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size_t bytesRead = file.readBytes(buffer,to_read);
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assert(parser.write(buffer, bytesRead)== bytesRead);
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if (bytesRead == 0) {
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Serial.println("End of file reached.");
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exit(0); // Exit the process
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}
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} |