Android崩溃调试手段
(1)#cd /Users/laixh/MiGuProjectCode/AiDemo0704/ai-demo/app/build/outputs/apk/defaultBuild/debug
(2)解压app-defaultBuild-debug.apk得到./lib/libvideo.so
(3)#/Users/laixh/Library/Android/ndk/toolchains/arm-linux-androideabi-4.9/prebuilt/darwin-x86_64/bin/arm-linux-androideabi-objdump -d ./libvideo.so > ./1.txt
(4)Android stdio Logcat模式下 得到崩溃日记，如下：
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: *** *** *** *** *** *** *** *** *** *** *** *** *** *** *** ***
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: Build fingerprint: 'xiaomi/vince/vince:8.1.0/OPM1.171019.019/V10.3.1.0.OEGCNXM:user/release-keys'
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: Revision: '0'
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: ABI: 'arm'
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: pid: 24839, tid: 2241, name: Thread-89713 >>> com.hisunflytone.android <<<
2019-08-21 20:19:52.335 2501-2501/? A/DEBUG: signal 6 (SIGABRT), code -6 (SI_TKILL), fault addr --------
2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: Abort message: 'invalid pthread_t 0x8c1 passed to libc'
2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: r0 00000000 r1 000008c1 r2 00000006 r3 00000008
2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: r4 00006107 r5 000008c1 r6 ceafabb4 r7 0000010c
2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: r8 00000000 r9 00000000 sl ceafad10 fp d12a2cc4
2019-08-21 20:19:52.350 2501-2501/? A/DEBUG: ip 00000002 sp ceafaba0 lr ef3fafcf pc ef3f49b8 cpsr 200f0030
2019-08-21 20:19:52.359 2501-2501/? A/DEBUG: backtrace:
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #00 pc 0001a9b8 /system/lib/libc.so (abort+63)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #01 pc 00048573 /system/lib/libc.so (__pthread_internal_find(long)+94)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #02 pc 00048469 /system/lib/libc.so (pthread_gettid_np+2)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #03 pc 0004887b /system/lib/libc.so (pthread_kill+18)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #04 pc 00005889 /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libBugly.so
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #05 pc 000022c9 /system/bin/app_process32 (art::SignalChain::Handler(int, siginfo*, void*)+220)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #06 pc 00018d0c /system/lib/libc.so
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #07 pc 000c7fc0 /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (init_complex_filtergraph+295)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #08 pc 000cf505 /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (ffmpeg_parse_options+452)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #09 pc 000bc9c9 /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (ffmpeg_exec+176)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #10 pc 000c2f4b /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so (muti_video_compose+1026)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #11 pc 000a7e5d /data/app/com.hisunflytone.android-W-gW5oZH01OTkJt6XSv0PA==/lib/arm/libvideo.so
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #12 pc 0004828b /system/lib/libc.so (__pthread_start(void*)+22)
2019-08-21 20:19:52.360 2501-2501/? A/DEBUG: #13 pc 0001b593 /system/lib/libc.so (__start_thread+32)
（5）从LOG看崩溃在init_complex_filtergraph+295偏移，查看崩溃原因
