From 40a8344385306bacdf85742d4d7480f323f749b8 Mon Sep 17 00:00:00 2001
From: Eino-Ville Talvala By using this control, the application gains a simpler way to control zoom, which can
* be a combination of optical and digital zoom. For example, a multi-camera system may
* contain more than one lens with different focal lengths, and the user can use optical
- * zoom by switching between lenses. Using zoomRatio has benefits in the scenarios below:
- * Zooming in from a wide-angle lens to a telephoto lens: A floating-point ratio provides
- * better precision compared to an integer value of ACAMERA_SCALER_CROP_REGION.
- * Zooming out from a wide lens to an ultrawide lens: zoomRatio supports zoom-out whereas
- * ACAMERA_SCALER_CROP_REGION doesn't.
To illustrate, here are several scenarios of different zoom ratios, crop regions,
* and output streams, for a hypothetical camera device with an active array of size
* (2000,1500)
.