chore: Simplify format sorting/filtering (#140)
* Simplify format sorting/filtering * Update useCameraFormat.ts * Also check photo HDR * Simplify double tap * Remove snapshot * Remove custom `useCameraDevice` hook * Update Podfile.lock
This commit is contained in:
Marc Rousavy
GitHub
parent
f839bc23ac
commit
310ad5fc4c
@ -322,7 +322,7 @@ PODS:
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- React
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- RNVectorIcons (8.1.0):
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- React-Core
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- VisionCamera (1.0.10):
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- VisionCamera (2.0.0):
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- React
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- React-callinvoker
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- React-Core
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@ -490,7 +490,7 @@ SPEC CHECKSUMS:
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RNReanimated: b8c8004b43446e3c2709fe64b2b41072f87428ad
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RNStaticSafeAreaInsets: 6103cf09647fa427186d30f67b0f5163c1ae8252
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RNVectorIcons: 31cebfcf94e8cf8686eb5303ae0357da64d7a5a4
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VisionCamera: 65836f8bb8dda4e718c350e32c35a0b9f166b731
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VisionCamera: 05d7d5d8df6513e61f6b6ad94d6c6befc73b780d
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Yoga: 8c8436d4171c87504c648ae23b1d81242bdf3bbf
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PODFILE CHECKSUM: 4b093c1d474775c2eac3268011e4b0b80929d3a2
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@ -1,16 +1,10 @@
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import * as React from 'react';
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import { useRef, useState, useMemo, useCallback } from 'react';
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import { StyleSheet, Text, View } from 'react-native';
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import {
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PinchGestureHandler,
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PinchGestureHandlerGestureEvent,
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State,
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TapGestureHandler,
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TapGestureHandlerStateChangeEvent,
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} from 'react-native-gesture-handler';
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import { PinchGestureHandler, PinchGestureHandlerGestureEvent, TapGestureHandler } from 'react-native-gesture-handler';
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import { Navigation, NavigationFunctionComponent } from 'react-native-navigation';
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import type { CameraDeviceFormat, CameraRuntimeError, PhotoFile, VideoFile } from 'react-native-vision-camera';
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import { Camera, frameRateIncluded, sortFormatsByResolution, filterFormatsByAspectRatio } from 'react-native-vision-camera';
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import { CameraDeviceFormat, CameraRuntimeError, PhotoFile, sortFormats, useCameraDevices, VideoFile } from 'react-native-vision-camera';
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import { Camera, frameRateIncluded } from 'react-native-vision-camera';
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import { useIsScreenFocussed } from './hooks/useIsScreenFocused';
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import { CONTENT_SPACING, MAX_ZOOM_FACTOR, SAFE_AREA_PADDING } from './Constants';
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import Reanimated, { Extrapolate, interpolate, useAnimatedGestureHandler, useAnimatedProps, useSharedValue } from 'react-native-reanimated';
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@ -21,7 +15,6 @@ import { CaptureButton } from './views/CaptureButton';
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import { PressableOpacity } from 'react-native-pressable-opacity';
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import MaterialIcon from 'react-native-vector-icons/MaterialCommunityIcons';
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import IonIcon from 'react-native-vector-icons/Ionicons';
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import { useCameraDevice } from './hooks/useCameraDevice';
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const ReanimatedCamera = Reanimated.createAnimatedComponent(Camera);
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Reanimated.addWhitelistedNativeProps({
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@ -48,12 +41,11 @@ export const CameraPage: NavigationFunctionComponent = ({ componentId }) => {
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const [enableNightMode, setEnableNightMode] = useState(false);
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// camera format settings
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const devices = useCameraDevice();
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const devices = useCameraDevices();
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const device = devices[cameraPosition];
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const formats = useMemo<CameraDeviceFormat[]>(() => {
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if (device?.formats == null) return [];
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const filtered = filterFormatsByAspectRatio(device.formats);
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return filtered.sort(sortFormatsByResolution);
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return device.formats.sort(sortFormats);
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}, [device?.formats]);
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//#region Memos
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@ -83,7 +75,7 @@ export const CameraPage: NavigationFunctionComponent = ({ componentId }) => {
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const supportsCameraFlipping = useMemo(() => devices.back != null && devices.front != null, [devices.back, devices.front]);
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const supportsFlash = device?.hasFlash ?? false;
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const supportsHdr = useMemo(() => formats.some((f) => f.supportsVideoHDR), [formats]);
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const supportsHdr = useMemo(() => formats.some((f) => f.supportsVideoHDR || f.supportsPhotoHDR), [formats]);
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const supports60Fps = useMemo(() => formats.some((f) => f.frameRateRanges.some((rate) => frameRateIncluded(rate, 60))), [formats]);
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const canToggleNightMode = enableNightMode
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? true // it's enabled so you have to be able to turn it off again
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@ -95,7 +87,7 @@ export const CameraPage: NavigationFunctionComponent = ({ componentId }) => {
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if (enableHdr) {
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// We only filter by HDR capable formats if HDR is set to true.
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// Otherwise we ignore the `supportsVideoHDR` property and accept formats which support HDR `true` or `false`
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result = result.filter((f) => f.supportsVideoHDR);
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result = result.filter((f) => f.supportsVideoHDR || f.supportsPhotoHDR);
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}
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// find the first format that includes the given FPS
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@ -153,21 +145,11 @@ export const CameraPage: NavigationFunctionComponent = ({ componentId }) => {
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//#endregion
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//#region Tap Gesture
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const onDoubleTapGesture = useCallback(
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({ nativeEvent: event }: TapGestureHandlerStateChangeEvent) => {
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// TODO: (MARC) Allow switching camera (back <-> front) while recording and stich videos together!
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if (isPressingButton.value) return;
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switch (event.state) {
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case State.END:
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// on double tap
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onFlipCameraPressed();
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break;
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default:
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break;
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}
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},
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[isPressingButton, onFlipCameraPressed],
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);
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const onDoubleTap = useCallback(() => {
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// TODO: (MARC) Allow switching camera (back <-> front) while recording and stich videos together!
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if (isPressingButton.value) return;
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onFlipCameraPressed();
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}, [isPressingButton, onFlipCameraPressed]);
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//#endregion
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//#region Effects
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@ -208,14 +190,12 @@ export const CameraPage: NavigationFunctionComponent = ({ componentId }) => {
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// _log(`Codes: ${JSON.stringify(codes)}`);
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// }, []);
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// TODO: Implement camera flipping (back <-> front) while recording and stich the videos together
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// TODO: iOS: Use custom video data stream output to manually process the data and write the MOV/MP4 for more customizability.
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return (
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<View style={styles.container}>
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{device != null && (
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<PinchGestureHandler onGestureEvent={onPinchGesture} enabled={isActive}>
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<Reanimated.View style={StyleSheet.absoluteFill}>
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<TapGestureHandler onHandlerStateChange={onDoubleTapGesture} numberOfTaps={2}>
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<TapGestureHandler onEnded={onDoubleTap} numberOfTaps={2}>
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<ReanimatedCamera
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ref={camera}
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style={StyleSheet.absoluteFill}
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@ -15,12 +15,6 @@ export const SAFE_AREA_PADDING = {
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paddingBottom: SAFE_BOTTOM + CONTENT_SPACING,
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};
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// whether to use takeSnapshot() instead of takePhoto() on Android
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export const USE_SNAPSHOT_ON_ANDROID = false;
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// whether to use ultra-wide-angle cameras if available, or explicitly disable them. I think ultra-wide-angle cams don't support 60FPS...
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export const USE_ULTRAWIDE_IF_AVAILABLE = true;
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// The maximum zoom _factor_ you should be able to zoom in
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export const MAX_ZOOM_FACTOR = 20;
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@ -1,45 +0,0 @@
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import { useEffect, useMemo, useState } from 'react';
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import { Camera, CameraDevice, sortDevices } from 'react-native-vision-camera';
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/**
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* A custom hook that's just like `useCameraDevices` from VisionCamera, but ignores `'telephoto-camera'` devices since those often have poor quality.
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*/
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export const useCameraDevice = (): {
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front: CameraDevice | undefined;
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back: CameraDevice | undefined;
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} => {
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const [backDevice, setBackDevice] = useState<CameraDevice>();
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const [frontDevice, setFrontDevice] = useState<CameraDevice>();
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useEffect(() => {
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let isMounted = true;
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const loadDevice = async (): Promise<void> => {
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const devices = await Camera.getAvailableCameraDevices();
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if (!isMounted) return;
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// use any device
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const filtered = devices.filter((d) => !d.devices.includes('telephoto-camera'));
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const sorted = filtered.sort(sortDevices);
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const back = sorted.find((d) => d.position === 'back');
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const front = sorted.find((d) => d.position === 'front');
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setBackDevice(back);
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setFrontDevice(front);
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console.log(`Devices: ${sorted.map((d) => d.name).join(', ')}`);
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};
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loadDevice();
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return () => {
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isMounted = false;
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};
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}, []);
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return useMemo(
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() => ({
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back: backDevice,
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front: frontDevice,
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}),
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[backDevice, frontDevice],
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);
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};
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@ -1,5 +1,5 @@
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import React, { useCallback, useMemo, useRef } from 'react';
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import { Platform, StyleSheet, View, ViewProps } from 'react-native';
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import { StyleSheet, View, ViewProps } from 'react-native';
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import {
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PanGestureHandler,
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PanGestureHandlerGestureEvent,
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@ -20,13 +20,11 @@ import Reanimated, {
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withRepeat,
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} from 'react-native-reanimated';
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import type { Camera, PhotoFile, TakePhotoOptions, TakeSnapshotOptions, VideoFile } from 'react-native-vision-camera';
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import { CAPTURE_BUTTON_SIZE, SCREEN_HEIGHT, SCREEN_WIDTH, USE_SNAPSHOT_ON_ANDROID } from './../Constants';
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import { CAPTURE_BUTTON_SIZE, SCREEN_HEIGHT, SCREEN_WIDTH } from './../Constants';
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const PAN_GESTURE_HANDLER_FAIL_X = [-SCREEN_WIDTH, SCREEN_WIDTH];
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const PAN_GESTURE_HANDLER_ACTIVE_Y = [-2, 2];
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const IS_ANDROID = Platform.OS === 'android';
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const START_RECORDING_DELAY = 200;
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const BORDER_WIDTH = CAPTURE_BUTTON_SIZE * 0.1;
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@ -73,14 +71,8 @@ const _CaptureButton: React.FC<Props> = ({
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try {
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if (camera.current == null) throw new Error('Camera ref is null!');
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// If we're on Android and flash is disabled, we can use the "snapshot" method.
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// this will take a snapshot of the current SurfaceView, which results in faster image
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// capture rate at the cost of greatly reduced quality.
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// eslint-disable-next-line @typescript-eslint/no-unnecessary-condition
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const photoMethod = USE_SNAPSHOT_ON_ANDROID && IS_ANDROID && takePhotoOptions.flash === 'off' ? 'snapshot' : 'photo';
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console.log(`Taking ${photoMethod}...`);
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const photo =
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photoMethod === 'snapshot' ? await camera.current.takeSnapshot(takePhotoOptions) : await camera.current.takePhoto(takePhotoOptions);
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console.log('Taking photo...');
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const photo = await camera.current.takePhoto(takePhotoOptions);
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onMediaCaptured(photo, 'photo');
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} catch (e) {
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console.error('Failed to take photo!', e);
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@ -1,7 +1,6 @@
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import { useMemo } from 'react';
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import type { CameraDevice, CameraDeviceFormat } from '../CameraDevice';
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import { filterFormatsByAspectRatio, sortFormatsByResolution } from '../utils/FormatFilter';
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import type { Size } from '../utils/FormatFilter';
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import { sortFormats } from '../utils/FormatFilter';
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/**
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* Returns the best format for the given camera device.
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@ -9,27 +8,9 @@ import type { Size } from '../utils/FormatFilter';
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* This function tries to choose a format with the highest possible photo-capture resolution and best matching aspect ratio.
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*
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* @param {CameraDevice} device The Camera Device
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* @param {Size} cameraViewSize The Camera View's size. This can be an approximation and **must be memoized**! Default: `SCREEN_SIZE`
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*
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* @returns The best matching format for the given camera device, or `undefined` if the camera device is `undefined`.
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*/
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export function useCameraFormat(device?: CameraDevice, cameraViewSize?: Size): CameraDeviceFormat | undefined {
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const formats = useMemo(() => {
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if (device?.formats == null) return [];
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const filtered = filterFormatsByAspectRatio(device.formats, cameraViewSize);
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const sorted = filtered.sort(sortFormatsByResolution);
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const bestFormat = sorted[0];
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if (bestFormat == null) return [];
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const bestFormatResolution = bestFormat.photoHeight * bestFormat.photoWidth;
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return sorted.filter((f) => {
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// difference in resolution in percent (e.g. 100x100 is 0.5 of 200x200)
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const resolutionDiff = (bestFormatResolution - f.photoHeight * f.photoWidth) / bestFormatResolution;
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// formats that are less than 25% of the bestFormat's resolution are dropped. They are too much quality loss
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return resolutionDiff <= 0.25;
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});
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}, [device?.formats, cameraViewSize]);
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return formats[0];
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export function useCameraFormat(device?: CameraDevice): CameraDeviceFormat | undefined {
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return useMemo(() => device?.formats.sort(sortFormats)[0], [device?.formats]);
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}
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@ -30,96 +30,31 @@ export const sortDevices = (left: CameraDevice, right: CameraDevice): number =>
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return rightPoints - leftPoints;
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};
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/**
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* Represents a Size in any unit.
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*/
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export type Size = {
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/**
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* Points in width.
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*/
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width: number;
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/**
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* Points in height.
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*/
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height: number;
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};
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const SCREEN_SIZE: Size = {
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const SCREEN_SIZE = {
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width: Dimensions.get('window').width,
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height: Dimensions.get('window').height,
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};
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const applyScaledMask = (
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clippedElementDimensions: Size, // 12 x 12
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maskDimensions: Size, // 6 x 12
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): Size => {
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const wScale = maskDimensions.width / clippedElementDimensions.width; // 0.5
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const hScale = maskDimensions.height / clippedElementDimensions.height; // 1.0
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const scale = Math.min(wScale, hScale);
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return {
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width: maskDimensions.width / scale,
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height: maskDimensions.height / scale,
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};
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};
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const getFormatAspectRatioOverflow = (format: CameraDeviceFormat, size: Size): number => {
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const downscaled = applyScaledMask(
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size,
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// cameras are landscape, so we intentionally rotate
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{ width: format.photoHeight, height: format.photoWidth },
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);
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return downscaled.width * downscaled.height - size.width * size.height;
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};
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const SCREEN_ASPECT_RATIO = SCREEN_SIZE.width / SCREEN_SIZE.height;
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/**
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* Filters Camera Device Formats by the best matching aspect ratio for the given `viewSize`.
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* Sort formats by resolution and aspect ratio difference (to the Screen size).
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*
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* @param {CameraDeviceFormat[]} formats A list of formats the current device has (see {@linkcode CameraDevice.formats})
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* @param {Size} viewSize The size of the camera view which will be used to find the best aspect ratio. Defaults to the screen size.
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* @returns A list of Camera Device Formats that match the given `viewSize`' aspect ratio _as close as possible_.
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*
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* @example
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* ```ts
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* const formats = useMemo(() => filterFormatsByAspectRatio(device.formats, CAMERA_VIEW_SIZE), [device.formats])
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* ```
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* @method
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* > Note that this makes the `sort()` function descending, so the first element (`[0]`) is the "best" device.
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*/
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export const filterFormatsByAspectRatio = (formats: CameraDeviceFormat[], viewSize = SCREEN_SIZE): CameraDeviceFormat[] => {
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const minOverflow = formats.reduce((prev, curr) => {
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const overflow = getFormatAspectRatioOverflow(curr, viewSize);
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if (overflow < prev) return overflow;
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else return prev;
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}, Number.MAX_SAFE_INTEGER);
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export const sortFormats = (left: CameraDeviceFormat, right: CameraDeviceFormat): number => {
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let leftPoints = 0,
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rightPoints = 0;
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return formats.filter((f) => {
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// percentage of difference in overflow from this format, to the minimum available overflow
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const overflowDiff = (getFormatAspectRatioOverflow(f, viewSize) - minOverflow) / minOverflow;
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// we have an acceptance of 25%, if overflow is more than 25% off to the min available overflow, we drop it
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return overflowDiff < 0.25;
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});
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};
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// we downscale the points so much that we are in smaller number ranges for future calculations
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// e.g. for 4k (4096), this adds 4 points.
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leftPoints += Math.round(left.photoWidth / 1000);
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rightPoints += Math.round(right.photoWidth / 1000);
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/**
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* Sorts Camera Device Formats by highest photo-capture resolution, descending. Use this in a `.sort` function.
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*
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* @example
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* ```ts
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* const formats = useMemo(() => device.formats.sort(sortFormatsByResolution), [device.formats])
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* const bestFormat = formats[0]
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* ```
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* @method
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*/
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export const sortFormatsByResolution = (left: CameraDeviceFormat, right: CameraDeviceFormat): number => {
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let leftPoints = left.photoHeight * left.photoWidth;
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let rightPoints = right.photoHeight * right.photoWidth;
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const leftAspectRatioDiff = left.photoHeight / left.photoWidth - SCREEN_ASPECT_RATIO;
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const rightAspectRatioDiff = right.photoHeight / right.photoWidth - SCREEN_ASPECT_RATIO;
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leftPoints -= Math.abs(leftAspectRatioDiff) * 50;
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rightPoints -= Math.abs(rightAspectRatioDiff) * 50;
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if (left.videoHeight != null && left.videoWidth != null && right.videoHeight != null && right.videoWidth != null) {
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leftPoints += left.videoWidth * left.videoHeight;
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rightPoints += right.videoWidth * right.videoHeight;
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}
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// "returns a negative value if left is better than one"
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return rightPoints - leftPoints;
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};
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