Merge "Only return early from data processing if it is not using data callback." into main

        framesLeft -= (int32_t) framesProcessed;

        audioData += framesProcessed * getBytesPerFrame();

        if (framesLeft <= 0) {

            // No need to wait, all data has been written.

        if (isDataCallbackSet() && framesLeft <= 0) {

            // The client uses block write and all data has been written. There is no need to

            // wait until the wakeup time.

            break;

        }