[opus] Crash when opus encoder destory on Android platform

[Chenhui Lin]

I integrated libopusenc(version 0.2.1) to Android platform. but I collected some crash when opus encode destory. error backstrace as following:

 1	#00 pc 0006828e /system/lib/libc.so (je_huge_salloc+133) [armeabi-v7a]
2	#01 pc 0006d303 /system/lib/libc.so (ifree+274) [armeabi-v7a]
3	#02 pc 0006d65d /system/lib/libc.so (je_free+72) [armeabi-v7a]
4	#03 pc 000025ef libopusenc.so ope_encoder_destroy [armeabi-v7a]
or

1	#00 pc 0006d22c /system/lib/libc.so (ifree+59) [armeabi-v7a]
2	#01 pc 0006d65d /system/lib/libc.so (je_free+72) [armeabi-v7a]
3	#02 pc 00002621 libopusenc.so ope_encoder_destroy [armeabi-v7a]

so, how can I resolved this crash? Is it possible to catch this crash or could you provide some information to help me to debug? Thanks. (sorry for my poor english.)