Un buffer finito da un giocatore audio opensl es deve essere liberato?

Question

solo per la conferma.Quando un lettore audio, creato tramite opensl es per Android, termina la riproduzione di un buffer, è che il buffer è automaticamente liberato dal collezionista della spazzatura?O devo liberare il buffer me stesso?

Se è il secondo, potrei usare un aiuto.Ma per ora, non posterò alcun codice fino a quando non ricevo che ho bisogno di farlo da solo ...

Answer 1

The buffer queue doesn't actually allocate buffer memory itself (or need to free it), you pass in pointers to memory you have allocated via the 'enqueue' function. You will need to free the memory you allocated when you're finished playing buffers.

As OpenSL ES is a native library in C++, it knows nothing of garbage collection, any memory you allocate for the API must be freed by you, and objects you create must have 'destroy' called on them to clean up internal memory.

Answer 2

As the previous poster said, you call Enqueue with a buffer you have created previously. I'd point out, however, that unless you're playing only one audio event once in your app, you should probably keep re-using your audio buffers to avoid GC altogether - the beauty of C!

Also check out the Android OpenSL ES doc concerning Destroying your interfaces once your done with them, that has to be done manually.