License violation: com.fuyou.aextrator (MP3 Converter)

Subject: License Violation: com.fuyou.aextrator (MP3提取转换器)


Dear FFmpeg developers,


I am reporting a potential LGPL license violation regarding the Android app "MP3提取转换器" (Package name: com.fuyou.aextrator).


Evidence:
After decompiling the APK, I found the following FFmpeg shared libraries in the lib/ directory:


· libavcodec.so
· libavformat.so
· libavfilter.so
· libavdevice.so
· libswscale.so
· libswresample.so
· libavutil.so


Violations:


1. No License Attribution: The app does not display the LGPL license notice anywhere (neither in the app's "About" page nor in the store description).
2. No Source Code Offer: The app is closed-source and does not provide any offer to obtain the corresponding source code.
3. Commercial Restriction: The app charges for features (limited conversions) while failing to comply with the LGPL requirements.


Evidence of Distribution:
This app is available on multiple major Chinese app stores, confirming its commercial distribution:


· 应用宝 (Tencent MyApp): http://sj.qq.com/myapp/detail.htm?apkName=com.fuyou.aextrator
· 华为应用市场 (Huawei AppGallery): https://appgallery.huawei.com/app/detail?id=com.fuyou.aextrator
· 小米应用商店 (Xiaomi GetApps): https://app.mi.com/details?id=com.fuyou.aextrator






Please investigate this matter. I can provide the APK file or further details if needed.


Best regards,


kssssxg





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