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use camera_windows fork for windows webcam support

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I wish I could use the CameraPlatformInterface in a platform-agnostic way

windows desktop webcam scan fixes

and log cleanup
This commit is contained in:
sneurlax 2024-07-20 00:30:35 -05:00 committed by julian-CStack
parent 63ee105aea
commit 6fa56bfe6d
3 changed files with 79 additions and 64 deletions
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138
lib/pages_desktop_specific/my_stack_view/wallet_view/sub_widgets/desktop_send.dart
View file

@ -13,6 +13,8 @@ import 'dart:convert';
import 'dart:io';
import 'package:camera_linux/camera_linux.dart';
import 'package:camera_windows/camera_windows.dart';
import 'package:camera_platform_interface/camera_platform_interface.dart';
import 'package:cw_core/monero_transaction_priority.dart';
import 'package:decimal/decimal.dart';
import 'package:dropdown_button2/dropdown_button2.dart';
@ -22,6 +24,7 @@ import 'package:flutter/services.dart';
import 'package:flutter_riverpod/flutter_riverpod.dart';
import 'package:flutter_svg/flutter_svg.dart';
import 'package:image/image.dart' as img;
import 'package:share_plus/share_plus.dart';
import 'package:zxing2/qrcode.dart';
import '../../../../models/isar/models/contact_entry.dart';
@ -146,32 +149,7 @@ class _DesktopSendState extends ConsumerState<DesktopSend> {
"Calculating..",
"Calculating...",
];
final _cameraLinuxPlugin = CameraLinux();
bool _isCameraOpen = false;
late String _base64Image;
// Below this point is WIP.
// Open Default Camera
Future<void> _initializeCamera() async {
await _cameraLinuxPlugin.initializeCamera();
}
// Capture The Image
Future<void> _captureImage() async {
_base64Image = await _cameraLinuxPlugin.captureImage();
setState(() {
_isCameraOpen = true;
});
return;
}
// Close The Camera
void _stopCamera() {
_cameraLinuxPlugin.stopCamera();
setState(() {
_isCameraOpen = false;
});
}
final CameraLinux? _cameraLinuxPlugin = Platform.isLinux ? CameraLinux() : null;
Future<void> scanWebcam() async {
try {
@ -2011,10 +1989,12 @@ class QrCodeScannerDialog extends StatefulWidget {
}
class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
final _cameraLinuxPlugin = CameraLinux();
final CameraLinux? _cameraLinuxPlugin = Platform.isLinux ? CameraLinux() : null;
final CameraWindows? _cameraWindowsPlugin = Platform.isWindows ? CameraWindows() : null;
bool _isCameraOpen = false;
Image? _image;
bool _isScanning = false;
int _cameraId = -1;
@override
void initState() {
@ -2030,19 +2010,38 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
Future<void> _initializeCamera() async {
try {
await _cameraLinuxPlugin.initializeCamera();
Logging.instance
.log("Camera initialized successfully", level: LogLevel.Info);
if (Platform.isLinux && _cameraLinuxPlugin != null) {
await _cameraLinuxPlugin!.initializeCamera();
Logging.instance.log("Linux Camera initialized", level: LogLevel.Info);
} else if (Platform.isWindows && _cameraWindowsPlugin != null) {
final List<CameraDescription> cameras = await _cameraWindowsPlugin!.availableCameras();
if (cameras.isEmpty) {
throw CameraException('No cameras available', 'No cameras found.');
}
final CameraDescription camera = cameras[0]; // Could be user-selected.
_cameraId = await _cameraWindowsPlugin!.createCameraWithSettings(
camera,
const MediaSettings(
resolutionPreset: ResolutionPreset.low,
fps: 4,
videoBitrate: 200000,
enableAudio: false,
),
);
await _cameraWindowsPlugin!.initializeCamera(_cameraId);
// await _cameraWindowsPlugin!.onCameraInitialized(_cameraId).first;
// TODO [prio=low]: Make this work. ^^^
Logging.instance.log("Windows Camera initialized with ID: $_cameraId", level: LogLevel.Info);
}
if (mounted) {
setState(() {
_isCameraOpen = true;
_isScanning = true;
});
}
_captureAndScanImage();
unawaited(_captureAndScanImage()); // Could be awaited.
} catch (e, s) {
Logging.instance
.log("Failed to initialize camera: $e\n$s", level: LogLevel.Error);
Logging.instance.log("Failed to initialize camera: $e\n$s", level: LogLevel.Error);
if (mounted) {
widget.onSnackbar("Failed to initialize camera. Please try again.");
}
@ -2051,11 +2050,19 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
Future<void> _stopCamera() async {
try {
_cameraLinuxPlugin.stopCamera();
Logging.instance.log("Camera stopped successfully", level: LogLevel.Info);
if (Platform.isLinux && _cameraLinuxPlugin != null) {
_cameraLinuxPlugin!.stopCamera();
Logging.instance.log("Linux Camera stopped", level: LogLevel.Info);
} else if (Platform.isWindows && _cameraWindowsPlugin != null) {
if (_cameraId >= 0) {
await _cameraWindowsPlugin!.dispose(_cameraId);
Logging.instance.log("Windows Camera stopped with ID: $_cameraId", level: LogLevel.Info);
} else {
Logging.instance.log("Windows Camera ID is null. Cannot dispose.", level: LogLevel.Error);
}
}
} catch (e, s) {
Logging.instance
.log("Failed to stop camera: $e\n$s", level: LogLevel.Error);
Logging.instance.log("Failed to stop camera: $e\n$s", level: LogLevel.Error);
} finally {
if (mounted) {
setState(() {
@ -2069,7 +2076,19 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
Future<void> _captureAndScanImage() async {
while (_isCameraOpen && _isScanning) {
try {
final base64Image = await _cameraLinuxPlugin.captureImage();
String? base64Image;
if (Platform.isLinux && _cameraLinuxPlugin != null) {
base64Image = await _cameraLinuxPlugin!.captureImage();
} else if (Platform.isWindows) {
final XFile xfile = await _cameraWindowsPlugin!.takePicture(_cameraId);
final bytes = await xfile.readAsBytes();
base64Image = base64Encode(bytes);
}
if (base64Image == null || base64Image.isEmpty) {
Logging.instance.log("Failed to capture image", level: LogLevel.Info);
await Future.delayed(const Duration(milliseconds: 250));
continue;
}
final img.Image? image = img.decodeImage(base64Decode(base64Image));
if (image == null) {
Logging.instance.log("Failed to decode image", level: LogLevel.Info);
@ -2080,7 +2099,7 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
if (mounted) {
setState(() {
_image = Image.memory(
base64Decode(base64Image),
base64Decode(base64Image!),
fit: BoxFit.cover,
);
});
@ -2094,8 +2113,8 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
}
break;
} else {
Logging.instance
.log("No QR code found in the image", level: LogLevel.Info);
// Logging.instance.log("No QR code found in the image", level: LogLevel.Info);
// Spammy.
if (mounted) {
widget.onSnackbar("No QR code found in the image.");
}
@ -2103,11 +2122,10 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
await Future.delayed(const Duration(milliseconds: 250));
} catch (e, s) {
Logging.instance.log("Failed to capture and scan image: $e\n$s",
level: LogLevel.Error);
// Logging.instance.log("Failed to capture and scan image: $e\n$s", level: LogLevel.Error);
// Spammy.
if (mounted) {
widget.onSnackbar(
"Error capturing or scanning the image. Please try again.");
widget.onSnackbar("Error capturing or scanning the image. Please try again.");
}
}
}
@ -2124,8 +2142,7 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
.buffer
.asInt32List(),
);
final BinaryBitmap bitmap =
BinaryBitmap(GlobalHistogramBinarizer(source));
final BinaryBitmap bitmap = BinaryBitmap(GlobalHistogramBinarizer(source));
final QRCodeReader reader = QRCodeReader();
final qrDecode = reader.decode(bitmap);
@ -2134,8 +2151,8 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
}
return qrDecode.text;
} catch (e, s) {
Logging.instance
.log("Failed to decode QR code: $e\n$s", level: LogLevel.Error);
// Logging.instance.log("Failed to decode QR code: $e\n$s", level: LogLevel.Error);
// Spammy.
return null;
}
}
@ -2164,13 +2181,13 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
Expanded(
child: _isCameraOpen
? _image != null
? _image!
: const Center(
child: CircularProgressIndicator(),
)
? _image!
: const Center(
child: Text("Camera is not open"),
),
child: CircularProgressIndicator(),
)
: const Center(
child: Text("Camera is not open"),
),
),
Padding(
padding: const EdgeInsets.all(16),
@ -2196,10 +2213,9 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
final filePath = result.files.single.path!;
try {
final img.Image? image =
img.decodeImage(File(filePath).readAsBytesSync());
img.decodeImage(File(filePath).readAsBytesSync());
if (image == null) {
widget.onSnackbar(
"Failed to decode image. Please select a valid image file.");
widget.onSnackbar("Failed to decode image. Please select a valid image file.");
return;
}
@ -2211,10 +2227,8 @@ class _QrCodeScannerDialogState extends State<QrCodeScannerDialog> {
widget.onSnackbar("No QR code found in the image.");
}
} catch (e, s) {
Logging.instance.log("Failed to decode image: $e\n$s",
level: LogLevel.Error);
widget.onSnackbar(
"Error processing the image. Please try again.");
Logging.instance.log("Failed to decode image: $e\n$s", level: LogLevel.Error);
widget.onSnackbar("Error processing the image. Please try again.");
}
},
),

2
pubspec.lock
View file

@ -255,7 +255,7 @@ packages:
source: hosted
version: "0.0.8"
camera_platform_interface:
dependency: transitive
dependency: "direct main"
description:
name: camera_platform_interface
sha256: b3ede1f171532e0d83111fe0980b46d17f1aa9788a07a2fbed07366bbdbb9061

3
scripts/app_config/templates/pubspec.template
View file

@ -193,9 +193,10 @@ dependencies:
camera_linux: ^0.0.8
zxing2: ^0.2.3
camera_windows:
git:
git: # TODO [prio=low]: Revert to official after https://github.com/flutter/packages/pull/7067.
url: https://github.com/cypherstack/packages.git
path: packages/camera/camera_windows
camera_platform_interface: ^2.8.0
dev_dependencies:
flutter_test: