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feat: implement FingerprintAudio function to process audio files and generate fingerprints

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This commit is contained in:
Chigozirim Igweamaka 2025-07-15 15:38:07 +01:00
parent 8a68843bc6
commit 64e8ee696d
1 changed files with 37 additions and 0 deletions
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37
server/shazam/fingerprint.go
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@ -1,7 +1,10 @@
package shazam
import (
"fmt"
"song-recognition/models"
"song-recognition/utils"
"song-recognition/wav"
)
const (
@ -44,3 +47,37 @@ func createAddress(anchor, target Peak) uint32 {
return address
}
func FingerprintAudio(songFilePath string, songID uint32) (map[uint32]models.Couple, error) {
wavFilePath, err := wav.ConvertToWAV(songFilePath)
if err != nil {
return nil, fmt.Errorf("error converting input file to WAV: %v", err)
}
wavInfo, err := wav.ReadWavInfo(wavFilePath)
if err != nil {
return nil, fmt.Errorf("error reading WAV info: %v", err)
}
fingerprint := make(map[uint32]models.Couple)
spectro, err := Spectrogram(wavInfo.LeftChannelSamples, wavInfo.SampleRate)
if err != nil {
return nil, fmt.Errorf("error creating spectrogram: %v", err)
}
peaks := ExtractPeaks(spectro, wavInfo.Duration)
utils.ExtendMap(fingerprint, Fingerprint(peaks, songID))
if wavInfo.Channels == 2 {
spectro, err = Spectrogram(wavInfo.RightChannelSamples, wavInfo.SampleRate)
if err != nil {
return nil, fmt.Errorf("error creating spectrogram for right channel: %v", err)
}
peaks = ExtractPeaks(spectro, wavInfo.Duration)
utils.ExtendMap(fingerprint, Fingerprint(peaks, songID))
}
return fingerprint, nil
}