87 lines
2.7 KiB
Objective-C
87 lines
2.7 KiB
Objective-C
//
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// SCManagedDroppedFramesReporter.m
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// Snapchat
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//
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// Created by Michel Loenngren on 3/21/17.
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// Copyright © 2017 Snapchat, Inc. All rights reserved.
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//
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#import "SCManagedDroppedFramesReporter.h"
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#import "SCCameraTweaks.h"
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#import "SCManagedCapturerState.h"
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#import <SCFoundation/SCBackgroundTaskMonitor.h>
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#import <SCFoundation/SCLog.h>
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#import <SCFrameRate/SCFrameRateEntry.h>
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#import <SCFrameRate/SCVideoFrameDropCounter.h>
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#import <SCLogger/SCCameraMetrics.h>
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#import <SCLogger/SCLogger.h>
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CGFloat const kSCCaptureTargetFramerate = 30;
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@interface SCManagedDroppedFramesReporter ()
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@property (nonatomic) SCVideoFrameDropCounter *frameDropCounter;
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@end
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@implementation SCManagedDroppedFramesReporter {
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SCVideoFrameDropCounter *_frameDropCounter;
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NSUInteger _droppedFrames;
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}
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- (SCVideoFrameDropCounter *)frameDropCounter
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{
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if (_frameDropCounter == nil) {
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_frameDropCounter = [[SCVideoFrameDropCounter alloc] initWithTargetFramerate:kSCCaptureTargetFramerate];
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_droppedFrames = 0;
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}
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return _frameDropCounter;
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}
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- (void)reportWithKeepLateFrames:(BOOL)keepLateFrames lensesApplied:(BOOL)lensesApplied
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{
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if (_frameDropCounter == nil) {
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return;
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}
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NSMutableDictionary *eventDict = [_frameDropCounter.toDict mutableCopy];
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eventDict[@"total_frame_drop_measured"] = @(_droppedFrames);
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eventDict[@"keep_late_frames"] = @(keepLateFrames);
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// if user select none of the lenses when activing the lenses scroll view, we still enable keepLateFrames
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eventDict[@"lenses_applied"] = @(lensesApplied);
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[[SCLogger sharedInstance] logEvent:kSCCameraMetricsFramesDroppedDuringRecording parameters:eventDict];
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// Reset
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_frameDropCounter = nil;
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_droppedFrames = 0;
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}
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- (void)didChangeCaptureDevicePosition
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{
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[_frameDropCounter didChangeCaptureDevicePosition];
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}
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#pragma mark - SCManagedVideoDataSourceListener
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- (void)managedVideoDataSource:(id<SCManagedVideoDataSource>)managedVideoDataSource
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didOutputSampleBuffer:(CMSampleBufferRef)sampleBuffer
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devicePosition:(SCManagedCaptureDevicePosition)devicePosition
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{
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[self.frameDropCounter processFrameTime:CMSampleBufferGetPresentationTimeStamp(sampleBuffer)];
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}
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- (void)managedVideoDataSource:(id<SCManagedVideoDataSource>)managedVideoDataSource
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didDropSampleBuffer:(CMSampleBufferRef)sampleBuffer
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devicePosition:(SCManagedCaptureDevicePosition)devicePosition
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{
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_droppedFrames += 1;
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NSDictionary<NSString *, NSNumber *> *backgroundTaskScreenshot = SCBackgrounTaskScreenshotReport();
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SCLogCoreCameraInfo(@"[SCManagedDroppedFramesReporter] frame dropped, background tasks: %@",
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backgroundTaskScreenshot);
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}
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@end
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