am trying to identify songs using shazamkit. every time it runs, this is the output:
2023-04-26 04:39:28.947059-0400 shazoom[38003:3098314] [AQ] AudioQueueObject.cpp:2364 Error (-4) getting reporterIDs
Processing chunk 1 from 0.0 to 60.0: 4316113920
Chunk saved at: file:///Users/youssefhemimy/Downloads/beyoncee.mp3
No match found
2023-04-26 04:39:29.483659-0400 shazoom[38003:3098339] [AQ] AudioQueueObject.cpp:2364 Error (-4) getting reporterIDs
Processing chunk 2 from 60.0 to 120.0: 4317271680
Chunk saved at: file:///Users/youssefhemimy/Downloads/beyoncee.mp3
No match found
2023-04-26 04:39:29.965718-0400 shazoom[38003:3098343] [AQ] AudioQueueObject.cpp:2364 Error (-4) getting reporterIDs
Processing chunk 3 from 120.0 to 180.0: 4317324608
Chunk saved at: file:///Users/youssefhemimy/Downloads/beyoncee.mp3
No match found
Note: all songs I have used have been identified by shazam the app. I have tried to use different songs, re-exported them from logic pro x but no luck. It also takes less than 2 seconds to generate this output which is way faster than the app.
I have tried to use:
var minimumQuerySignatureDuration: TimeInterval { get }
but no luck.
Below is the full code:
import Foundation
import AVFoundation
import ShazamKit
class ShazamAnalyzer: NSObject, SHSessionDelegate {
let session = SHSession()
func analyzeAudioFile(url: URL) {
let asset = AVAsset(url: url)
let assetDuration = asset.duration.seconds
let chunkDuration = 30.0
let numberOfChunks = Int(ceil(assetDuration / chunkDuration))
session.delegate = self
for i in 0..<numberOfChunks {
let startTime = Double(i) * chunkDuration
let start = CMTime(seconds: startTime, preferredTimescale: asset.duration.timescale)
let end = CMTime(seconds: min(startTime + chunkDuration, assetDuration), preferredTimescale: asset.duration.timescale)
let range = CMTimeRange(start: start, end: end)
if let signature = generateSignature(from: asset, for: range) {
print("Processing chunk \(i + 1) from \(start.seconds) to \(end.seconds): \(signature.hash)")
print("Chunk saved at: \(url.absoluteString)")
session.match(signature)
} else {
print("Error generating signature for chunk \(i + 1)")
}
}
}
func generateSignature(from asset: AVAsset, for timeRange: CMTimeRange) -> SHSignature? {
let audioFormat = AVAudioFormat(standardFormatWithSampleRate: 44100, channels: 1)
let signatureGenerator = SHSignatureGenerator()
let exportSession = AVAssetExportSession(asset: asset, presetName: AVAssetExportPresetPassthrough)!
exportSession.timeRange = timeRange
let reader = try? AVAssetReader(asset: exportSession.asset)
let audioOutput = AVAssetReaderAudioMixOutput(audioTracks: exportSession.asset.tracks(withMediaType: .audio), audioSettings: nil)
audioOutput.alwaysCopiesSampleData = false
reader?.add(audioOutput)
reader?.startReading()
while let sampleBuffer = audioOutput.copyNextSampleBuffer() {
if let blockBuffer = CMSampleBufferGetDataBuffer(sampleBuffer) {
let length = CMBlockBufferGetDataLength(blockBuffer)
var data = Data(count: length)
_ = data.withUnsafeMutableBytes {(bytes: UnsafeMutableRawBufferPointer) in
CMBlockBufferCopyDataBytes(blockBuffer, atOffset: 0, dataLength: length, destination: bytes.baseAddress!)
}
let audioBuffer = AVAudioPCMBuffer(pcmFormat: audioFormat!, frameCapacity: AVAudioFrameCount(length) / audioFormat!.streamDescription.pointee.mBytesPerFrame)!
guard let channelData = audioBuffer.floatChannelData else {
print("Error: Channel data is nil")
return nil
}
let channels = UnsafeBufferPointer(start: channelData, count: Int(audioFormat!.channelCount))
let destinationBuffer = UnsafeMutableBufferPointer(start: channels[0], count: length)
_ = data.copyBytes(to: destinationBuffer)
do {
try signatureGenerator.append(audioBuffer, at: nil)
} catch {
print(
"Error appending buffer to signature generator: \(error)")
return nil
}
}
}
return signatureGenerator.signature()
}
func session(_ session: SHSession, didFind match: SHMatch) {
if let matchedItem = match.mediaItems.first {
print("Match found: \(matchedItem.title ?? "Unknown Title") by \(matchedItem.artist ?? "Unknown Artist")")
} else {
print("Match found, but unable to retrieve media item details.")
}
}
func session(_ session: SHSession, didNotFindMatchFor signature: SHSignature, error: Error?) {
print("No match found")
}
}
let filePath = "/Users/youssefhemimy/Downloads/beyoncee.mp3" // Replace this with the actual path to your audio file
if let fileURL = URL(string: "file://" + filePath) {
let analyzer = ShazamAnalyzer()
analyzer.analyzeAudioFile(url: fileURL)
} else {
print("Invalid file path")
}
youssefh4
Users receive reputation points by contributing quality content to the forums.
Posts include post and replies published on the forums.
Post authors can mark replies as Accepted to indicate successful solutions.
Apple Developer Forums admins can mark replies as Apple Recommended to indicate an approved solution