95 lines
2.8 KiB
Java
95 lines
2.8 KiB
Java
/*
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* Copyright (C) 2021 pedroSG94.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package com.pedro.encoder.input.video;
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import android.content.Context;
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import android.os.Build;
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import android.util.Range;
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import android.view.MotionEvent;
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import android.view.Surface;
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import android.view.WindowManager;
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import androidx.annotation.RequiresApi;
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/**
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* Created by pedro on 17/12/18.
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*/
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public class CameraHelper {
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private static final float[] verticesData = {
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// X, Y, Z, U, V
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-1f, -1f, 0f, 0f, 0f,
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1f, -1f, 0f, 1f, 0f,
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-1f, 1f, 0f, 0f, 1f,
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1f, 1f, 0f, 1f, 1f,
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};
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public static float[] getVerticesData() {
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return verticesData;
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}
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public static int getCameraOrientation(Context context) {
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WindowManager windowManager = (WindowManager) context.getSystemService(Context.WINDOW_SERVICE);
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if (windowManager != null) {
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int orientation = windowManager.getDefaultDisplay().getRotation();
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switch (orientation) {
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case Surface.ROTATION_0: //portrait
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return 90;
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case Surface.ROTATION_90: //landscape
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return 0;
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case Surface.ROTATION_180: //reverse portrait
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return 270;
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case Surface.ROTATION_270: //reverse landscape
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return 180;
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default:
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return 0;
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}
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} else {
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return 0;
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}
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}
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public static boolean isPortrait(Context context) {
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int orientation = getCameraOrientation(context);
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return orientation == 90 || orientation == 270;
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}
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public static float getFingerSpacing(MotionEvent event) {
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float x = event.getX(0) - event.getX(1);
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float y = event.getY(0) - event.getY(1);
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return (float) Math.sqrt(x * x + y * y);
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}
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/**
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* Method to fix camera2 quality related with fps range.
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* Add a device if needed.
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*/
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@RequiresApi(api = Build.VERSION_CODES.LOLLIPOP)
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public static boolean discardCamera2Fps(Range<Integer> range, Facing facing) {
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//On Google pixel 4a, 30 and 15 fps ranges produce quality problems with camera2 using facing back.
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//Build.MODEL.equalsIgnoreCase("Pixel 4") maybe necessary in future.
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if (Build.MODEL.equalsIgnoreCase("Pixel 4a")) {
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return facing == Facing.BACK && (range.getUpper() == 30 || range.getUpper() == 15);
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}
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return false;
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}
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public enum Facing {
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BACK, FRONT
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}
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}
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