react-native-vision-camera/ios/Frame Processor/FrameProcessorUtils.mm
Marc Rousavy 68a716b506
feat: native Frame type to provide Orientation (#186)
* Use Frame.h

* Add orientation

* Determine buffer orientation

* Replace plugins

* fix calls

* Update FRAME_PROCESSOR_CREATE_PLUGIN_IOS.mdx

* Update FRAME_PROCESSOR_CREATE_PLUGIN_IOS.mdx

* format

* Update CameraPage.tsx

* Update FRAME_PROCESSOR_CREATE_PLUGIN_IOS.mdx

* Add links to docs

* Use `.` syntax

* Make properties `readonly`

* Fix `@synthesize` backing store
2021-06-09 10:57:05 +02:00

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//
// FrameProcessorUtils.m
// VisionCamera
//
// Created by Marc Rousavy on 15.03.21.
// Copyright © 2021 mrousavy. All rights reserved.
//
#import "FrameProcessorUtils.h"
#import <chrono>
#import <memory>
#import "FrameHostObject.h"
#import "Frame.h"
FrameProcessorCallback convertJSIFunctionToFrameProcessorCallback(jsi::Runtime &runtime, const jsi::Function &value) {
__block auto cb = value.getFunction(runtime);
return ^(Frame* frame) {
#if DEBUG
std::chrono::steady_clock::time_point begin = std::chrono::steady_clock::now();
#endif
auto frameHostObject = std::make_shared<FrameHostObject>(frame);
try {
cb.call(runtime, jsi::Object::createFromHostObject(runtime, frameHostObject));
} catch (jsi::JSError& jsError) {
NSLog(@"Frame Processor threw an error: %s", jsError.getMessage().c_str());
}
#if DEBUG
std::chrono::steady_clock::time_point end = std::chrono::steady_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - begin).count();
if (duration > 100) {
NSLog(@"Warning: Frame Processor function took %lld ms to execute. This blocks the video queue from recording, optimize your frame processor!", duration);
}
#endif
// Manually free the buffer because:
// 1. we are sure we don't need it anymore, the frame processor worklet has finished executing.
// 2. we don't know when the JS runtime garbage collects this object, it might be holding it for a few more frames
// which then blocks the camera queue from pushing new frames (memory limit)
frameHostObject->destroyBuffer();
};
}