Cannot initialize Visualizer engine, error: -3

[northout-silky]

Getting “Cannot initialize Visualizer engine, error: -3” when trying to use Visualizer with ExoPlayer

[northout-silky]

@gauravk95

[alhajsid]

@gauravk95 i am waiting too

[sagarrishabh]

@northout-silky Did you handle RECORD_AUDIO permission?

[Aadic2601]

Give permission in manifest and then while installing

[AdisAlagic]

Give permission in manifest
<uses-permission android:name="android.permission.RECORD_AUDIO" />
Request permission in runtime

[wise4rmgod]

Solution:
private val PERMISSION_REQUEST_CODE = 100

fun checkPermission(): Boolean {
    val result = ContextCompat.checkSelfPermission(
        binding.root.context as Activity,
        android.Manifest.permission.RECORD_AUDIO
    )
    return result == PackageManager.PERMISSION_GRANTED
}

fun requestPermission() {
    ActivityCompat.requestPermissions(
        binding.root.context as Activity,
        arrayOf(Manifest.permission.RECORD_AUDIO),
        PERMISSION_REQUEST_CODE
    )
}

in your Android onCreate function call the below function
requestPermission()
if (checkPermission()) {
//get the AudioSessionId from your MediaPlayer and pass it to the visualizer
val audioSessionId: Int? = MediaPlayerMix.mPlayer?.audioSessionId
if (audioSessionId != -1) audioSessionId?.let { binding.blast.setAudioSessionId(it) }
}