Iterate over supported camera recording sizes to see which one best fits the dimensions of the screen while maintaining the aspect ratio. - Android Camera

Android examples for Camera:Camera Size

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Description

Iterate over supported camera recording sizes to see which one best fits the dimensions of the screen while maintaining the aspect ratio.

Demo Code


//package com.java2s;

import android.hardware.Camera;

import java.util.List;

public class Main {

    public static Camera.Size getOptimalRecordingSize(
            List<Camera.Size> sizes, int w, int h) {
        final double ASPECT_TOLERANCE = 0.1;
        double targetRatio = (double) w / h;
        if (sizes == null)
            return null;

        Camera.Size optimalSize = null;//from   w  ww  .j a  va  2 s.  c o  m

        double minDiff = Double.MAX_VALUE;

        int targetHeight = h;

        for (Camera.Size size : sizes) {
            double ratio = (double) size.width / size.height;
            if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE)
                continue;
            if (Math.abs(size.height - targetHeight) < minDiff) {
                optimalSize = size;
                minDiff = Math.abs(size.height - targetHeight);
            }
        }

        if (optimalSize == null) {
            minDiff = Double.MAX_VALUE;
            for (Camera.Size size : sizes) {
                if (Math.abs(size.height - targetHeight) < minDiff) {
                    optimalSize = size;
                    minDiff = Math.abs(size.height - targetHeight);
                }
            }
        }
        return optimalSize;
    }
}

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