55 lines
1.2 KiB
C++
55 lines
1.2 KiB
C++
/**
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* @file m4a-extractor.ino
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* @author Phil Schatzmann
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* @brief Decode M4A file and output to CSV
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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/M4AAudioFileDemuxer.h"
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#include "AudioTools/AudioCodecs/CodecALAC.h"
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#include "AudioTools/AudioCodecs/CodecAACHelix.h"
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#include "AudioTools/AudioCodecs/MultiDecoder.h"
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#include "SD.h"
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MultiDecoder multi_decoder;
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AACDecoderHelix dec_aac;
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DecoderALAC dec_alac;
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CsvOutput<int16_t> out(Serial);
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//MP4Parser parser;
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M4AAudioFileDemuxer demux;
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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/1-07 All You Need Is Love.m4a");
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if (!file) {
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Serial.println("Failed to open file!");
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return;
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}
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// Setup decoder
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multi_decoder.setOutput(out);
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multi_decoder.addDecoder(dec_aac, "audio/aac");
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multi_decoder.addDecoder(dec_alac, "audio/alac");
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demux.setDecoder(multi_decoder);
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if (!demux.begin(file)){
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Serial.println("Failed to open demuxer!");
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return;
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}
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}
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void loop() {
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demux.copy();
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} |