app · a960769

記錄原生錄影最大 gap 發生位置與長 gap 事件

commit a960769e3613ea67eead4d867d5c38eb63a8ee56Author: Nuclear0709 <agp05432@gmail.com>Date:   Thu Nov 12 23:58:32 2026 +0800     記錄原生錄影最大 gap 發生位置與長 gap 事件 diff --git a/liveAPP/Capture/ScreenRecordingOrientationObserver.swift b/liveAPP/Capture/ScreenRecordingOrientationObserver.swiftindex 2844a09..6fd5b18 100644--- a/liveAPP/Capture/ScreenRecordingOrientationObserver.swift+++ b/liveAPP/Capture/ScreenRecordingOrientationObserver.swift@@ -14,6 +14,8 @@ final class ScreenRecordingOrientationObserver: NSObject, SCStreamOutput, @unche     private var firstPTS: Double?     private var lastPTS: Double?     private var maxFrameGap: Double = 0+    private var maxFrameGapAtPTS: Double?+    private var lastFrameGap: Double?     private var frameGapsOver100ms = 0     private var lastArrival: Double? @@ -26,7 +28,8 @@ final class ScreenRecordingOrientationObserver: NSObject, SCStreamOutput, @unche         }         let idle = lastArrival.map { max(0, now - $0) } ?? -1         return "frames=\(frameCount) firstPTS=\(number(firstPTS)) lastPTS=\(number(lastPTS)) "-            + "maxGap=\(number(maxFrameGap)) gapsOver100ms=\(frameGapsOver100ms) idle=\(number(idle))"+            + "maxGap=\(number(maxFrameGap)) maxGapAtPTS=\(number(maxFrameGapAtPTS)) "+            + "lastGap=\(number(lastFrameGap)) gapsOver100ms=\(frameGapsOver100ms) idle=\(number(idle))"     }      func stream(_ stream: SCStream, didOutputSampleBuffer sampleBuffer: CMSampleBuffer, of type: SCStreamOutputType) {@@ -38,19 +41,28 @@ final class ScreenRecordingOrientationObserver: NSObject, SCStreamOutput, @unche             ?? (CMGetAttachment(sampleBuffer, key: SCStreamFrameInfo.videoOrientation.rawValue as CFString, attachmentModeOut: nil) as? NSNumber)?.intValue         let seconds = sampleBuffer.presentationTimeStamp.seconds         let arrival = CMClockGetTime(CMClockGetHostTimeClock()).seconds+        var longGap: (previous: Double, current: Double, gap: Double)?         if seconds.isFinite, seconds > 0 {             frameLock.lock()             frameCount += 1             if firstPTS == nil { firstPTS = seconds }             if let previous = lastPTS {                 let gap = seconds - previous-                if gap > maxFrameGap { maxFrameGap = gap }+                lastFrameGap = gap+                if gap > maxFrameGap {+                    maxFrameGap = gap+                    maxFrameGapAtPTS = previous+                }                 if gap > 0.100 { frameGapsOver100ms += 1 }+                if gap >= 0.500 { longGap = (previous, seconds, gap) }             }             lastPTS = seconds             if arrival.isFinite { lastArrival = arrival }             frameLock.unlock()         }+        if let longGap {+            sendlog(message: "[RecordingFrameGap] previousPTS=\(longGap.previous) currentPTS=\(longGap.current) gap=\(longGap.gap)")+        }         timeline.observe(seconds: seconds, orientation: raw)         if raw != lastOrientation || (raw == nil && !loggedMissing) {             sendlog(message: "[RecordingOrientation] exif=\(raw.map(String.init) ?? "missing") pixel=\(CVPixelBufferGetWidth(image))x\(CVPixelBufferGetHeight(image)) pts=\(seconds)")