react-native-vision-camera/package/example/ios/Frame Processor Plugins/Example Plugin/ExampleFrameProcessorPlugin.m
Marc Rousavy 992934e00e
feat: SharedArray:wrapData:withSize init for iOS (#2410)
* feat: `ArrayBuffer:wrapData:withSize` init for iOS

* Format

* fix build error

* Update ExampleFrameProcessorPlugin.m

* docs: Add class docs for SharedArray
2024-01-18 10:41:26 +01:00

62 lines
1.8 KiB
Objective-C

//
// ExampleFrameProcessorPlugin.m
// VisionCameraExample
//
// Created by Marc Rousavy on 01.05.21.
//
#if __has_include(<VisionCamera/FrameProcessorPlugin.h>)
#import <Foundation/Foundation.h>
#import <VisionCamera/FrameProcessorPlugin.h>
#import <VisionCamera/FrameProcessorPluginRegistry.h>
#import <VisionCamera/Frame.h>
#import <VisionCamera/SharedArray.h>
// Example for an Objective-C Frame Processor plugin
@interface ExampleFrameProcessorPlugin : FrameProcessorPlugin
@end
@implementation ExampleFrameProcessorPlugin {
SharedArray* _sharedArray;
}
- (instancetype)initWithProxy:(VisionCameraProxyHolder*)proxy
withOptions:(NSDictionary* _Nullable)options {
if (self = [super initWithProxy:proxy withOptions:options]) {
_sharedArray = [[SharedArray alloc] initWithProxy:proxy
allocateWithSize:5];
NSLog(@"ExampleFrameProcessorPlugin initialized with options: %@", options);
}
return self;
}
- (id)callback:(Frame *)frame withArguments:(NSDictionary *)arguments {
CVPixelBufferRef imageBuffer = CMSampleBufferGetImageBuffer(frame.buffer);
NSLog(@"ExamplePlugin: %zu x %zu Image. Logging %lu parameters:", CVPixelBufferGetWidth(imageBuffer), CVPixelBufferGetHeight(imageBuffer), (unsigned long)arguments.count);
for (id param in arguments) {
NSLog(@"ExamplePlugin: -> %@ (%@)", param == nil ? @"(nil)" : [param description], NSStringFromClass([param classForCoder]));
}
uint8_t* data = _sharedArray.data;
data[0] = (uint8_t)(random() * 100);
return @{
@"example_str": @"Test",
@"example_bool": @(YES),
@"example_double": @5.3,
@"example_array": @[
@"Hello",
@(YES),
@17.38
],
@"example_array_buffer": _sharedArray
};
}
VISION_EXPORT_FRAME_PROCESSOR(ExampleFrameProcessorPlugin, example_plugin)
@end
#endif