增加可放大倍数的参数查询

app/src/main/cpp/camera2/ndkcamera.cpp

@@ -324,6 +324,18 @@ int NdkCamera::open(const std::string& cameraId) {
             awbLockAvailable = (status == ACAMERA_OK) ? (*e.data.u8 == ACAMERA_CONTROL_AWB_LOCK_AVAILABLE_TRUE) : false;
         }
 
+        {
+            ACameraMetadata_const_entry val = {0};
+            status = ACameraMetadata_getConstEntry(camera_metadata, ACAMERA_CONTROL_ZOOM_RATIO_RANGE, &val);
+            if (status == ACAMERA_OK)
+            {
+                float zoomRatioMin = val.data.f[0];
+                float zoomRatioMax = val.data.f[1];
+
+                ALOGI("Zoom Ratio Range: %f -> %f", zoomRatioMin, zoomRatioMax);
+            }
+        }
+
         {
             ACameraMetadata_const_entry val = {0};
             status = ACameraMetadata_getConstEntry(camera_metadata, ACAMERA_CONTROL_AE_COMPENSATION_RANGE, &val);