如何停止持续运行的D/AudioTrack？日志异常原因排查

在Android Studio中执行Run命令启动Flutter应用后，应用并未播放任何音视频，但Run标签页持续输出以下D/AudioTrack日志：

D/AudioTrack( 7824): [audioTrackData][fine] 25s(f:25037 m:914 s:1000 k:0) : pid 7824 uid 10657 sessionId 8033 sr 44100 ch 2 fmt 1
D/AudioTrack( 7824): [audioTrackData][mute] 28s(f:0 m:28040 s:0 k:28040) : pid 7824 uid 10657 sessionId 8025 sr 48000 ch 2 fmt 1
D/AudioTrack( 7824): [audioTrackData][fine] 25s(f:25030 m:1003 s:0 k:0) : pid 7824 uid 10657 sessionId 8089 sr 48000 ch 1 fmt 1

设备信息 #

• Redmi 10C
• MIUI Global 14.0.2

依赖的音视频相关插件 #

camera: ^0.10.5+2
video_compress: ^3.1.0
video_player: ^2.6.1
video_thumbnail: ^0.5.0

Flutter环境检测结果 #

C:\src\flutter\bin\flutter.bat doctor --verbose
[√] Flutter (Channel stable, 3.10.5, on Microsoft Windows [Version 10.0.22621.1555], locale he-IL)
    • Flutter version 3.10.5 on channel stable at C:\src\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 796c8ef792 (13 days ago), 2023-06-13 15:51:02 -0700
    • Engine revision 45f6e00911
    • Dart version 3.0.5
    • DevTools version 2.23.1

[√] Windows Version (Installed version of Windows is version 10 or higher)

[√] Android toolchain - develop for Android devices (Android SDK version 33.0.0)
    • Android SDK at C:\Users\merid\AppData\Local\Android\sdk
    • Platform android-TiramisuPrivacySandbox, build-tools 33.0.0
    • Java binary at: C:\Program Files\Android\Android Studio2\jbr\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-9505619)
    • All Android licenses accepted.

[√] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[X] Visual Studio - develop for Windows
    X Visual Studio not installed; this is necessary for Windows development.
      Download at https://visualstudio.microsoft.com/downloads/.
      Please install the "Desktop development with C++" workload, including all of its default components

[√] Android Studio (version 2021.3)
    • Android Studio at C:\Program Files\Android\Android Studio
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866)

[√] Android Studio (version 2022.1)
    • Android Studio at C:\Program Files\Android\Android Studio2
    • Flutter plugin can be installed from:
       https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
       https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-9505619)

[√] VS Code (version 1.78.0)
    • VS Code at C:\Users\merid\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension can be installed from:
       https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[√] Connected device (4 available)
    • 220333QAG (mobile) • fd8dff64 • android-arm64  • Android 13 (API 33)
    • Windows (desktop)  • windows  • windows-x64    • Microsoft Windows [Version 10.0.22621.1555]
    • Chrome (web)       • chrome   • web-javascript • Google Chrome 114.0.5735.134
    • Edge (web)         • edge     • web-javascript • Microsoft Edge 114.0.1823.58

[√] Network resources
    • All expected network resources are available.

! Doctor found issues in 1 category.
Process finished with exit code 0

咨询问题 #

1. 这些D/AudioTrack日志产生的原因是什么？
2. 如何停止持续运行的D/AudioTrack？

1. D/AudioTrack日志产生的原因 #

• 插件资源残留：你使用的camera或video_player插件，在初始化过程中会创建AudioTrack实例用于音视频预览的音频通路，即使未主动播放音视频，这些实例若未被正确销毁，就会触发系统持续输出日志。
• MIUI系统特性：MIUI 14的音频框架会对应用音视频组件做额外状态监控，即便音频处于静音（日志中的[mute]标记）状态，也会持续记录AudioTrack的运行数据。
• 插件预加载逻辑：部分音视频插件会预创建音频资源池，保持AudioTrack实例处于就绪状态以避免后续初始化延迟，这类预创建的实例会持续产生日志。

2. 停止持续运行的AudioTrack的方法 #

• 手动销毁插件实例：在不使用camera或video_player时，务必调用对应的销毁方法，比如cameraController.dispose()、videoPlayerController.dispose()，彻底释放相关音频资源。
• 升级插件版本：尝试将相关音视频插件更新到最新稳定版，旧版本可能存在资源泄漏问题，新版本通常会修复这类资源未正确释放的bug。
• 关闭MIUI详细音频日志：在手机开发者选项中找到“音频日志”或类似选项，关闭详细输出（不同MIUI版本路径略有差异，一般在开发者选项的“调试”分类下）。
• 排查代码逻辑：检查代码中是否存在意外初始化音视频插件的情况，比如在页面初始化时不必要地创建了Camera或VideoPlayer实例，即便未展示对应UI。

内容的提问来源于stack exchange，提问作者Kobi