Merge "Issue 5247986: Battery drain due to audio wakelock"

                               false);

        if (result == NO_ERROR) {

            uint32_t user = cblk->user;

            uint32_t server = cblk->server;

            // restore write index and set other indexes to reflect empty buffer status

            mCblk->user = cblk->user;

            mCblk->server = cblk->user;

            mCblk->userBase = cblk->user;

            mCblk->serverBase = cblk->user;

            mCblk->user = user;

            mCblk->server = user;

            mCblk->userBase = user;

            mCblk->serverBase = user;

            // restore loop: this is not guaranteed to succeed if new frame count is not

            // compatible with loop length

            setLoop_l(cblk->loopStart, cblk->loopEnd, cblk->loopCount);

            if (!fromStart) {

                mCblk->bufferTimeoutMs = MAX_RUN_TIMEOUT_MS;

                // Make sure that a client relying on callback events indicating underrun or

                // the actual amount of audio frames played (e.g SoundPool) receives them.

                if (mSharedBuffer == 0) {

                    uint32_t frames = 0;

                    if (user > server) {

                        frames = ((user - server) > mCblk->frameCount) ?

                                mCblk->frameCount : (user - server);

                        memset(mCblk->buffers, 0, frames * mCblk->frameSize);

                    }

                    // restart playback even if buffer is not completely filled.

                    android_atomic_or(CBLK_FORCEREADY_ON, &mCblk->flags);

                    // stepUser() clears CBLK_UNDERRUN_ON flag enabling underrun callbacks to

                    // the client

                    mCblk->stepUser(frames);

                }

            }

            if (mActive) {

                result = mAudioTrack->start();