case CAM_STREAM_TYPE_PREVIEW:
        if (mParameters.getRecordingHintValue()) {
            const char* dis_param = mParameters.get(QCameraParameters::KEY_QC_DIS);
            bool disEnabled = (dis_param != NULL)
                    && !strcmp(dis_param,QCameraParameters::VALUE_ENABLE);
            if(disEnabled) {
                char value[PROPERTY_VALUE_MAX];
                property_get("persist.camera.is_type", value, "0");
                streamInfo->is_type = static_cast<cam_is_type_t>(atoi(value));
            } else {
                streamInfo->is_type = IS_TYPE_NONE;
            }
            if (mParameters.isSeeMoreEnabled()) {
                streamInfo->pp_config.feature_mask |= CAM_QCOM_FEATURE_LLVD;
            }
        }