2136d8d77e
When sendWithTimestamp is called, a ~1000 byte buffer is created even if nothing is sent. This CL adds a check to the size to save space in the buffer if it's not needed. Bug: 216328047 Test: atest NativeMidiEchoTest Change-Id: I0bfddb6ca7416c5df5e938bdd09a5f1efdacaf5c