Merge "Fix double track thread initialization"

        if (!isOffloaded_l()) {

            t->pause();

        } else if (mTransfer == TRANSFER_SYNC_NOTIF_CALLBACK) {

            const sp<AudioTrackThread> t = mAudioTrackThread;

            if (t != 0) {

            // causes wake up of the playback thread, that will callback the client for

            // EVENT_STREAM_END in processAudioBuffer()

            t->wake();

        }

        }

    } else {

        setpriority(PRIO_PROCESS, 0, mPreviousPriority);

        set_sched_policy(0, mPreviousSchedulingGroup);