Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Open Source License 

import android.hardware.Camera;
import android.util.Log;

import java.util.List;

public class Main {
    private static final String TAG = "RxCamera.CameraUtil";

    public static int[] findClosestFpsRange(Camera camera, int minFrameRate, int maxFrameRate) {
        minFrameRate *= 1000;
        maxFrameRate *= 1000;
        Camera.Parameters parameters = camera.getParameters();
        int minIndex = 0;
        int minDiff = Integer.MAX_VALUE;
        List<int[]> rangeList = parameters.getSupportedPreviewFpsRange();
        Log.d(TAG, "support preview fps range list: " + dumpFpsRangeList(rangeList));
        for (int i = 0; i < rangeList.size(); i++) {
            int[] fpsRange = rangeList.get(i);
            if (fpsRange.length != 2) {
                continue;
            }
            int minFps = fpsRange[0] / 1000;
            int maxFps = fpsRange[1] / 1000;
            int diff = Math.abs(minFps - minFrameRate) + Math.abs(maxFps - maxFrameRate);
            if (diff < minDiff) {
                minDiff = diff;
                minIndex = i;
            }
        }
        int[] result = rangeList.get(minIndex);
        return result;
    }

    private static String dumpFpsRangeList(List<int[]> rangeList) {
        String result = "";
        for (int[] range : rangeList) {
            if (range.length != 2) {
                continue;
            }
            result += "(" + range[0] + "," + range[1] + ") ";
        }
        return result;
    }
}