Soundtouch库编译问题

Question

我正在尝试用Android编译Soundtouch库。我成功地安装了Soundtouch库所需的Cygwin和SWIG。当我尝试运行ndk-build.cmd时，我会得到一个错误

jni/soundtouch/wrapper_wrap.cpp:函数'void Java_com_talkingyeti_jni2_wrapperJNI_SoundTouch_1putSamples(JNIEnv*，_jclass*，jlong，_jobject*，jlong，jlong)'：jni/soundtouch/wrapper_wrap.cpp:545: error：'SAMPLETYPE‘在此范围内未声明’soundtouch/包装_Wrap.cpp:545:错误：'arg2‘在此范围内未声明，jni/soundtouch/包装_Wrap.cpp:553:错误:预期的主-表达式前')’token jni/soundtouch/_Wrap.cpp:560:错误:预期‘’之前'const‘jni/soundtouch/包装器_ was :560:错误:预期的’)；‘令牌生成：* obj/local/armeabi/objs/soundtouch/wrapper_wrap.o错误1

此问题发生在以下wrapper_wrap.cpp块中：

  SWIGEXPORT void JNICALL Java_com_talkingyeti_jni2_wrapperJNI_SoundTouch_1putSamples(JNIEnv *jenv, jclass jcls, jlong jarg1, jobject jarg1_, jlong jarg2, jlong jarg3) {
  soundtouch::SoundTouch *arg1 = (soundtouch::SoundTouch *) 0 ;
  SAMPLETYPE *arg2 = (SAMPLETYPE *) 0 ;
  uint arg3 ;
  uint *argp3 ;

  (void)jenv;
  (void)jcls;
  (void)jarg1_;
  arg1 = *(soundtouch::SoundTouch **)&jarg1; 
  arg2 = *(SAMPLETYPE **)&jarg2; 
  argp3 = *(uint **)&jarg3; 
  if (!argp3) {
    SWIG_JavaThrowException(jenv, SWIG_JavaNullPointerException, "Attempt to dereference null uint");
    return ;
  }

请建议我需要对SAMPLETYPE做哪些修改才能正确编译NDK并生成SO文件。

Answer 1

你好像漏了一个头球。确保你有：

#include "soundtouch/include/SoundTouch.h"

和

using namespace soundtouch;