From b2af9fef1941b1c04b6ed0fa5e8d4cacb001a491 Mon Sep 17 00:00:00 2001
From: YuAo <me@imyuao.com>
Date: Tue, 15 Feb 2022 16:15:50 +0800
Subject: [PATCH] [Recorder] audio buffer grouping logic fix

---
 Sources/VideoIO/MultitrackMovieRecorder.swift | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Sources/VideoIO/MultitrackMovieRecorder.swift b/Sources/VideoIO/MultitrackMovieRecorder.swift
index 03b8f7e..35b372b 100644
--- a/Sources/VideoIO/MultitrackMovieRecorder.swift
+++ b/Sources/VideoIO/MultitrackMovieRecorder.swift
@@ -422,7 +422,7 @@ public final class MultitrackMovieRecorder {
         guard self.pendingAudioSampleBuffers.count > 0 else {
             return
         }
-        let (groupsToBeAppended, pendingGroups) = pendingAudioSampleBuffers.stableGroup(using: { $0.endTime >= lastVideoSampleTime })
+        let (groupsToBeAppended, pendingGroups) = pendingAudioSampleBuffers.stableGroup(using: { $0.endTime <= lastVideoSampleTime })
         for group in groupsToBeAppended {
             try self.appendAudioSampleBufferGroup(group)
         }
@@ -431,7 +431,7 @@ public final class MultitrackMovieRecorder {
     
     private func tryAppendingAudioSampleBufferGroup(_ group: SampleBufferGroup) throws {
         dispatchPrecondition(condition: .onQueue(self.queue))
-        if group.endTime >= self.lastVideoSampleTime {
+        if group.endTime > self.lastVideoSampleTime {
             self.pendingAudioSampleBuffers.append(group)
         } else {
             try self.appendAudioSampleBufferGroup(group)