fix (**) deallocate only when we're sure we've allocated something

[kuamanet]

Fix #169

[Sethi1998]

The error is solved but if are playing from a list then its stucks on the screen and there is no crash but its stuck in the same

[Sethi1998]

the main crash was in this line " lastDescription.deallocate()"

[kuamanet]

@Sethi1998 can you provide a little snippet to reproduce the error?

[Sethi1998]

@Sethi1998 can you provide a little snippet to reproduce the error?

there is no error if I have used your methods which you have changed

[Sethi1998]

" if outPacketDescriptions?.pointee == nil { outPacketDescriptions?.pointee = UnsafeMutablePointer<AudioStreamPacketDescription>.allocate(capacity: 1) if let lastDescription = selfAudioConverter.converterDescriptions { lastDescription.deallocate() } } "

[GabM3]

@Sethi1998 I've just tried this a few times, the queue is correctly played in iOS 16, can you explain how this is not working for you?