Android NDK - 編譯庫時出錯

我發現了this library，它被稱爲SoundTouch-Android。Android NDK - 編譯庫時出錯

我將jni和armeabi-v7a文件夾複製到我的項目中。

在終端要去jni文件夾後，我輸入：

export ANDROID_NDK=~/daniele/Android/Sdk/ndk-bundle 
export NDK_ROOT=$ANDROID_NDK 
export PATH=${PATH}:${ANDROID_NDK} 
ndk-build

這是我得到：

Android NDK: APP_PLATFORM not set. Defaulting to minimum supported version android-14.  
Android NDK: WARNING:/home/daniele/AndroidStudioProjects/Chords2/app/jni/Android.mk:soundtouch: non-system libraries in linker flags: -lgcc  
Android NDK:  This is likely to result in incorrect builds. Try using LOCAL_STATIC_LIBRARIES  
Android NDK:  or LOCAL_SHARED_LIBRARIES instead to list the library dependencies of the  
Android NDK:  current module  
Android NDK: WARNING:/home/daniele/AndroidStudioProjects/Chords2/app/jni/Android.mk:soundtouch: non-system libraries in linker flags: -lgcc  
Android NDK:  This is likely to result in incorrect builds. Try using LOCAL_STATIC_LIBRARIES  
Android NDK:  or LOCAL_SHARED_LIBRARIES instead to list the library dependencies of the  
Android NDK:  current module  
[armeabi-v7a] Compile++ thumb: soundtouch <= soundtouch-jni.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= AAFilter.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= FIFOSampleBuffer.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= FIRFilter.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= cpu_detect_x86.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= RateTransposer.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= SoundTouch.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= TDStretch.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= BPMDetect.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= PeakFinder.cpp 
[armeabi-v7a] SharedLibrary : libsoundtouch.so 
[armeabi-v7a] Install  : libsoundtouch.so => libs/armeabi-v7a/libsoundtouch.so 
[armeabi] Compile++ thumb: soundtouch <= soundtouch-jni.cpp 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch-jni.cpp:133:2: error: 
     no matching function for call to 'convertInput16' 
     convertInput16(ar, fBufferIn, BUFF_SIZE); 
     ^~~~~~~~~~~~~~ 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch-jni.cpp:58:13: note: 
     candidate function not viable: no known conversion from 
     'soundtouch::SAMPLETYPE *' (aka 'short *') to 'float *' for 2nd argument 
static void convertInput16(jbyte*, float*, int); 
      ^
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch-jni.cpp:210:16: error: 
     no matching function for call to 'write' 
       processed += write(fBufferIn, fBufferOut, nSamples * cha... 
          ^~~~~ 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch-jni.cpp:56:12: note: 
     candidate function not viable: no known conversion from 
     'soundtouch::SAMPLETYPE *' (aka 'short *') to 'const float *' for 1st 
     argument 
static int write(const float*, queue<signed char>*, int, int); 
     ^
2 errors generated.

我怎樣才能解決呢？

UPDATE：

我想修改我Application.mk在丹艾伯特的回答表明後重建它。現在我得到了一個不同的日誌，但仍然是一個錯誤，我不知道如何解決。

Android NDK: APP_PLATFORM not set. Defaulting to minimum supported version android-14.  
Android NDK: WARNING:/home/daniele/AndroidStudioProjects/Chords2/app/jni/Android.mk:soundtouch: non-system libraries in linker flags: -lgcc  
Android NDK:  This is likely to result in incorrect builds. Try using LOCAL_STATIC_LIBRARIES  
Android NDK:  or LOCAL_SHARED_LIBRARIES instead to list the library dependencies of the  
Android NDK:  current module  
[armeabi-v7a] Compile++ thumb: soundtouch <= soundtouch-jni.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= AAFilter.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= FIFOSampleBuffer.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= FIRFilter.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= cpu_detect_x86.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= RateTransposer.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= SoundTouch.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= TDStretch.cpp 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch/source/SoundTouch/TDStretch.cpp:72:13: warning: 
     unused variable '_scanOffsets' [-Wunused-const-variable] 
const short _scanOffsets[5][24]={ 
      ^
1 warning generated. 
[armeabi-v7a] Compile++ thumb: soundtouch <= BPMDetect.cpp 
[armeabi-v7a] Compile++ thumb: soundtouch <= PeakFinder.cpp 
[armeabi-v7a] SharedLibrary : libsoundtouch.so 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch/source/SoundTouch/RateTransposer.cpp:296: error: undefined reference to 'soundtouch::InterpolateLinearFloat::InterpolateLinearFloat()' 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch/source/SoundTouch/RateTransposer.cpp:302: error: undefined reference to 'soundtouch::InterpolateShannon::InterpolateShannon()' 
/home/daniele/AndroidStudioProjects/Chords2/app/jni/soundtouch/source/SoundTouch/RateTransposer.cpp:299: error: undefined reference to 'soundtouch::InterpolateCubic::InterpolateCubic()' 
clang++: error: linker command failed with exit code 1 (use -v to see invocation) 
make: *** [/home/daniele/AndroidStudioProjects/Chords2/app/obj/local/armeabi-v7a/libsoundtouch.so] Error 1

我不太知道，如果它是有用的，但我將在下面爲你檢查出後我Android.mk：

LOCAL_PATH := $(call my-dir) 

include $(CLEAR_VARS) 

# *** Remember: Change -O0 into -O2 in add-applications.mk *** 

LOCAL_MODULE := soundtouch 
LOCAL_SRC_FILES := soundtouch-jni.cpp soundtouch/source/SoundTouch/AAFilter.cpp soundtouch/source/SoundTouch/FIFOSampleBuffer.cpp \ 
       soundtouch/source/SoundTouch/FIRFilter.cpp soundtouch/source/SoundTouch/cpu_detect_x86.cpp \ 
       soundtouch/source/SoundTouch/RateTransposer.cpp soundtouch/source/SoundTouch/SoundTouch.cpp \ 
       soundtouch/source/SoundTouch/TDStretch.cpp soundtouch/source/SoundTouch/BPMDetect.cpp soundtouch/source/SoundTouch/PeakFinder.cpp 

# for native audio 
LOCAL_LDLIBS += -lgcc 
LOCAL_C_INCLUDES += $(LOCAL_PATH)/soundtouch/include 
# --whole-archive -lgcc 
# for logging 
LOCAL_LDLIBS += -llog 
# for native asset manager 
#LOCAL_LDLIBS += -landroid 
# don't export all symbols 
# added "-marm" switch to use arm instruction set instead of thumb for improved calculation performance. 
LOCAL_CFLAGS += -Wall -fvisibility=hidden -I soundtouch/source/../include -D ST_NO_EXCEPTION_HANDLING -fdata-sections -ffunction-sections -marm 

include $(BUILD_SHARED_LIBRARY)

來源

2017-08-31 Daniele

你定義自己的'write'功能？定義與標準庫中的函數名稱相同的函數可能是一個糟糕的主意...... –

不，我沒有自己定義它。我只是試圖建立圖書館，因爲我從問題中提供的鏈接下載它。我猜它已經與android.mk有關，儘管我現在不能發佈它。我稍後會更新這個問題。 – Daniele

看起來也許這就是在剛剛打破了檢查代碼SOUND_TOUCH_INTEGER_SAMPLES：https://github.com/VladimirKulyk/SoundTouch-Android/blob/a614c7b37b0c4d58b20e0581aadfd6a43f3a5f2d/jni/soundtouch/include/STTypes.h#L139

看起來像是在line 85上設置的。它只適用於沒有浮點硬件的情況（從日誌中可以看出，這對於大多數ABI來說都很好，但對於arm5來說只是失敗了）。我建議只禁用arm5。幾乎所有的設備都可以做arm7。在Application.mk file，改變APP_ABI行：

APP_ABI := armeabi-v7a

來源

2017-08-31 17:30:32

好的，可以做。但是因爲我完全不熟悉這個，你會介意解釋我該怎麼做嗎？ – Daniele

更新了答案。 –

非常感謝，以後會試用 – Daniele

Android NDK - 編譯庫時出錯

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