railbird/react-native-vision-camera
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try: Improvements from WWDC 2021 1:1 workshop (#197)

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* perf: Automatically determine Pixel Format depending on active format. (More efficient video recording 🚀)
* perf: Skip `AVAssetWriter` transform by directly correctly orienting the Video Output connection
* feat: Support camera flipping while recording
* feat: Run frame processor on separate queue, avoids stutters in video recordigns
* feat: Automatically drop late frame processor frames
This commit is contained in:
Marc Rousavy
2021-06-11 21:06:19 +02:00
committed by GitHub
parent 26cf21ff5f
commit 9c579c65aa
14 changed files with 103 additions and 74 deletions
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4
ios/Frame Processor/FrameProcessorRuntimeManager.mm
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@@ -43,7 +43,7 @@
// Forward declarations for the Swift classes
__attribute__((objc_runtime_name("_TtC12VisionCamera12CameraQueues")))
@interface CameraQueues : NSObject
@property (nonatomic, class, readonly, strong) dispatch_queue_t _Nonnull videoQueue;
@property (nonatomic, class, readonly, strong) dispatch_queue_t _Nonnull frameProcessorQueue;
@end
__attribute__((objc_runtime_name("_TtC12VisionCamera10CameraView")))
@interface CameraView : UIView
@@ -153,7 +153,7 @@ __attribute__((objc_runtime_name("_TtC12VisionCamera10CameraView")))
auto anonymousView = [currentBridge.uiManager viewForReactTag:[NSNumber numberWithDouble:viewTag]];
auto view = static_cast<CameraView*>(anonymousView);
dispatch_async(CameraQueues.videoQueue, [worklet, view, self]() {
dispatch_async(CameraQueues.frameProcessorQueue, [worklet, view, self]() {
NSLog(@"FrameProcessorBindings: Converting worklet to Objective-C callback...");
auto& rt = *runtimeManager->runtime;
auto function = worklet->getValue(rt).asObject(rt).asFunction(rt);