如果Resource目录有媒体文件例如.mp4，应用更新后会导致媒体文件加载不出来

[hanfy91]

生成assetBinData压缩文件时，需要根据文件后缀判断是否需要压缩，媒体文件压缩后是无法正确加载的。

[hanfy91]

不压缩后依然加载不了，挪到StreamingAsset使用，更新后依然加载不了，使用UnityWebRequest从StreamingAsset加载二进制文件没问题，但是用Unity VideoPlayer组件的Url加载模式会加载不出来

2022-06-17 14:56:38.396 1929-2052/cn.jj.jedi I/il2cpp: [9a65f910]my_open open: /data/app/cn.jj.jedi-1/base.apk 2022-06-17 14:56:38.396 1929-2052/cn.jj.jedi I/il2cpp: [9a65f910]prepare_file /data/app/cn.jj.jedi-1/base.apk -> 0x8f634508 2022-06-17 14:56:38.396 1929-2052/cn.jj.jedi I/il2cpp: [9a65f910]fopen -> 0x8f634508 2022-06-17 14:56:38.396 1929-2052/cn.jj.jedi I/il2cpp: [9a65f910]FileExtraData saved to /storage/emulated/0/Android/data/cn.jj.jedi/files/IL2CPPRes/rt_fd_mappings/8fffc000. fd:0x0000010e, file: 0x8f63455c 2022-06-17 14:56:38.396 1929-2052/cn.jj.jedi D/il2cpp: [9a65f910]shadow apk in open: /data/app/cn.jj.jedi-1/base.apk, fd:0x0000010e, file: 0x8f63455c 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]fopen([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.406 1929-2054/cn.jj.jedi I/il2cpp: [98d58910]not exist([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.411 1929-2052/cn.jj.jedi W/FileSource: offset/length adjusted from 296527356/858610 to 24/0 2022-06-17 14:56:38.413 1929-2052/cn.jj.jedi E/WVMExtractor: Failed to open libwvm.so: dlopen failed: library "libwvm.so" not found 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]fopen([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.428 1929-2055/cn.jj.jedi I/il2cpp: [98b58910]not exist([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.453 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.453 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu0/cpu_capacity],[r]) 2022-06-17 14:56:38.453 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.453 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu1/cpu_capacity],[r]) 2022-06-17 14:56:38.453 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu2/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu3/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu4/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu5/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu6/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]fopen([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.454 1929-2056/cn.jj.jedi I/il2cpp: [98958910]not exist([/sys/devices/system/cpu/cpu7/cpu_capacity],[r]) 2022-06-17 14:56:38.481 1929-2052/cn.jj.jedi E/NdkMediaExtractor: sf error code: -1010 2022-06-17 14:56:38.481 1929-2052/cn.jj.jedi I/il2cpp: [9a65f910]my_close: 0x0000010e 2022-06-17 14:56:38.481 1929-2052/cn.jj.jedi W/Unity: AndroidVideoMedia: Error opening extractor: -10000 (Filename: ./PlatformDependent/AndroidPlayer/Modules/Video/Private/AndroidVideoMedia.cpp Line: 469) 2022-06-17 14:56:38.495 1929-2058/cn.jj.jedi I/il2cpp: [98558910]my_open open: /data/app/cn.jj.jedi-1/base.apk 2022-06-17 14:56:38.496 1929-2058/cn.jj.jedi W/FileSource: offset/length adjusted from 296527356/858610 to 24/0 2022-06-17 14:56:38.499 1929-2058/cn.jj.jedi E/NdkMediaExtractor: sf error code: -1010 2022-06-17 14:56:38.500 1929-2058/cn.jj.jedi I/il2cpp: [98558910]my_close: 0x0000010e 2022-06-17 14:56:38.500 1929-2058/cn.jj.jedi W/Unity: AndroidVideoMedia: Error opening extractor: -10000 (Filename: ./PlatformDependent/AndroidPlayer/Modules/Video/Private/AndroidVideoMedia.cpp Line: 469)

[hanfy91]

研究了一下源码，问题应在hook只hook了libunity.so，视频的播放方式可能是libUnity.so获取文件描述符，然后给到Android底层，底层使用文件描述符去读取文件，但是libunity.so中返回的文件描述符不是真实的apk文件的文件描述符，所以底层直接读取文件是读取不到的，具体怎么修改，还没想好，作者大佬有没有什么好的解决方案？？

[noodle1983]

不打AB，不处理，直接放streaming里面，直接load streaming的出来播。变更的话，下载到随便一个目录，读出来播就是了

[hanfy91]

unity 的VideoPlayer不支持load streaming播放，现在临时的解决方案就是复制到包体外面，用外面的路径播放，但是不确定会不会有其他类似的问题，bug的本质是因为只Hook了libUnity.so的io接口，只要libUnity.so把文件句柄提供给其他部分使用都会有这种问题，感觉是个隐藏的坑啊，这个bug有什么本质性的解决方案么？

[noodle1983]

没， 没必要搞复杂，用最稳妥的方案，特例不多。我们之前时用streaming的，不行就复制到外面