Description
环境：android+ndk，返回json格式到android
日志如下：
出错堆栈
1 #00 pc 0003c100 /system/lib/libc.so (tgkill+12) [armeabi-v7a]
2 #1 pc 000177cd /system/lib/libc.so (pthread_kill+52) [armeabi-v7a]
3 #2 pc 000183cf /system/lib/libc.so (raise+10) [armeabi-v7a]
4 #3 pc 00014c27 /system/lib/libc.so (__libc_android_abort+34) [armeabi-v7a]
5 #4 pc 00013010 /system/lib/libc.so (abort+4) [armeabi-v7a]
6 #5 pc 00015e31 /system/lib/libc.so (__libc_fatal+16) [armeabi-v7a]
7 #6 pc 00014cb1 /system/lib/libc.so (__assert2+20) [armeabi-v7a]
8 #7 pc 0006067b /data/app/com.ikeeko.sample-1/lib/arm/libjson.so (Json::Value::releasePayload()+126) [armeabi-v7a]
9 #8 pc 000605cd /data/app/com.ikeeko.sample-1/lib/arm/libjson.so (Json::Value::~Value()+16) [armeabi-v7a]
10 #9 pc 000211f9 /data/app/com.ikeeko.sample-1/lib/arm/libkeekoaic.so [armeabi-v7a]
11 #10 pc 0001ff9f /data/app/com.ikeeko.sample-1/lib/arm/libkeekoaic.so [armeabi-v7a]
12 #11 pc 00009fb9 /data/app/com.ikeeko.sample-1/lib/arm/libkeekoaic.so (Java_com_ikeeko_ai_ccore_AutumnCourseRecognition_startRec+952) [armeabi-v7a]
13 #12 pc 000a23b1 /system/lib/libart.so (art_quick_generic_jni_trampoline+32) [armeabi-v8]
14 #13 pc 74b62314
15 java:
16 com.ikeeko.ai.RecHelper.startRec(RecHelper.java:41)
17 com.ikeeko.sample.view.CameraSurfaceView$1$1.run(CameraSurfaceView.java:179)
18 java.lang.Thread.run(Thread.java:818)