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ffmpegaudioplayer's Issues

so库打包成功,最后运行报错:Build command failed.

android studio版本:3.4.0
FFmpeg:3.2.12
ndk版本:android-ndk-r15c
打包成功so库以后,添加到了新建的项目中,直接拷贝了你的CMakeLists里面的代码,build是没问题的,但运行到手机上的时候报错了:
`Build command failed.
Error while executing process /Users/wenba/android-sdk-macosx/cmake/3.6.4111459/bin/cmake with arguments {--build /Users/wenba/AndroidStudioProjects/FFmpegDemo/app/.externalNativeBuild/cmake/debug/armeabi --target native-lib}

ninja: error: '/Users/.../app/src/main/cpp/src/main/jniLibs/armeabi/libavutil-55.so', needed by '/Users/.../app/build/intermediates/cmake/debug/obj/armeabi/libnative-lib.so', missing and no known rule to make it`
提示说找不到libavutil-55.so,但是Users/.../app/src/main/cpp/src/main/jniLibs/armeabi/libavutil-55.so'在这个路径下是能够找到libavutil-55.so这个库的。

调节音量会崩溃

手机是Android10.0的,多音轨播放调节音量,崩溃。
10-26 16:30:52.731 28413 28413 F DEBUG : *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
10-26 16:30:52.732 28413 28413 F DEBUG : Build fingerprint: 'HONOR/LRA-AL00/HWLRA-H:10/HONORLRA-AL00/10.1.0.146C00:user/release-keys'
10-26 16:30:52.732 28413 28413 F DEBUG : Revision: '0'
10-26 16:30:52.732 28413 28413 F DEBUG : ABI: 'arm'
10-26 16:30:52.736 28413 28413 F DEBUG : SYSVMTYPE: Maple
10-26 16:30:52.736 28413 28413 F DEBUG : APPVMTYPE: Art
10-26 16:30:52.736 28413 28413 F DEBUG : Timestamp: 2020-10-26 16:30:52+0800
10-26 16:30:52.736 28413 28413 F DEBUG : pid: 28319, tid: 28409, name: mpegaudioplayer >>> io.github.iamyours.ffmpegaudioplayer <<<
10-26 16:30:52.736 28413 28413 F DEBUG : uid: 10434
10-26 16:30:52.736 28413 28413 F DEBUG : signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x1
10-26 16:30:52.736 28413 28413 F DEBUG : Cause: null pointer dereference
10-26 16:30:52.736 28413 28413 F DEBUG : r0 c327bb6c r1 c2fe7139 r2 00000000 r3 00000000
10-26 16:30:52.736 28413 28413 F DEBUG : r4 c2fe7138 r5 c327bb6c r6 c307b490 r7 00000001
10-26 16:30:52.736 28413 28413 F DEBUG : r8 c69c20f0 r9 00000000 r10 0000000a r11 c327c230
10-26 16:30:52.736 28413 28413 F DEBUG : ip c4116c70 sp c327bb50 lr c4017548 pc c4017228
10-26 16:30:52.736 28413 28413 F DEBUG :
10-26 16:30:52.736 28413 28413 F DEBUG : backtrace:
10-26 16:30:52.736 28413 28413 F DEBUG : #00 pc 0008b228 /data/app/io.github.iamyours.ffmpegaudioplayer-4cK57c6q3O54iHQnFR7Zbw==/lib/arm/libavfilter-6.so

我把代码中,updateFilters上面注释掉的initFilters打开,然后不用updateFilters,就没有崩溃。

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