gistfile1.java

static void avcallback_audio(ToxAv *tox_av, int32_t call_id, int16_t *pcm_data, int pcm_data_length, void *user_data)
{
    tox_av_jni_globals_t *globals = (tox_av_jni_globals_t *) user_data;
    JNIEnv *env;
    jbyteArray output;
    ATTACH_THREAD(globals, env);
    //create java byte array from pcm data
    jbyte _output[pcm_data_length];
    output = (*env)->NewByteArray(env, pcm_data_length);
    (*env)->SetByteArrayRegion(env, output, 0, pcm_data_length, _output);
    //                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Where *pcm_data used here? A problem may arise.
    (*env)->CallVoidMethod(env, globals->handler, globals->cache->onAudioDataMethodId, call_id, output);
}