Merge "MediaPlayer: Permit VolumeShaper operations on gapless playback" into oc-dr1-dev

            }

        }

    } else {

        // VolumeShapers are not affected when a track moves between players for

        // gapless playback (setNextMediaPlayer).

        // We forward VolumeShaper operations that do not change configuration

        // to the new player so that unducking may occur as expected.

        // Unducking is an idempotent operation, same if applied back-to-back.

        if (configuration->getType() == VolumeShaper::Configuration::TYPE_ID

                && mNextOutput != nullptr) {

            ALOGV("applyVolumeShaper: Attempting to forward missed operation: %s %s",

                    configuration->toString().c_str(), operation->toString().c_str());

            Mutex::Autolock nextLock(mNextOutput->mLock);

            // recycled track should be forwarded from this AudioSink by switchToNextOutput

            sp<AudioTrack> track = mNextOutput->mRecycledTrack;

            if (track != nullptr) {

                ALOGD("Forward VolumeShaper operation to recycled track %p", track.get());

                (void)track->applyVolumeShaper(configuration, operation);

            } else {

                // There is a small chance that the unduck occurs after the next

                // player has already started, but before it is registered to receive

                // the unduck command.

                track = mNextOutput->mTrack;

                if (track != nullptr) {

                    ALOGD("Forward VolumeShaper operation to track %p", track.get());

                    (void)track->applyVolumeShaper(configuration, operation);

                }

            }

        }

        status = mVolumeHandler->applyVolumeShaper(configuration, operation);

    }

    return status;