android项目似乎存在内存泄露的问题

[mayukawaiiyo]

Is your feature request related to a problem? Please describe.
运行android demo似乎存在内存泄露的问题，在移动设备上运行几个小时 native的内存会达到几百mb。
检查发现似乎在runtime/android/app/src/main/cpp/wekws.cc中存在问题，51行accept_waveform需要加上
env->ReleaseShortArrayElements(jWaveform, waveform,0)释放内存

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[robin1001]

感谢，我们看一下。