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I am trying to compile the SoundTouch lib with Android NDK. I got some instruction from Here to compile this lib in android.

But when I try to compile it with ndk-build command it show errors in various source files of SoundTouch lib something like this: enter image description here

I tried to Switch off exception handling as mentioned in the instructions but it doesn't seems to work.

I copied all the files from SoundTouch source to JNI folder of my project. Here is my android.mk file : 

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_CFLAGS :- -frtti -fexceptions

LOCAL_SRC_FILES := AAFilter.cpp BPMDetect.cpp cpu_detect_x86.cpp FIFOSampleBuffer.cpp FIRFilter.cpp main.cpp mmx_optimized.cpp PeakFinder.cpp RateTransposer.cpp RunParameters.cpp SoundTouch.cpp sse_optimized.cpp TDStretch.cpp WavFile.cpp

LOCAL_LDLIBS := -lpcap

LOCAL_MODULE := libSoundTouch

LOCAL_C_INCLUDES := BPMDetect.h FIFOSampleBuffer.h FIFOSamplePipe.h SoundTouch.h STTypes.h

include $(BUILD_SHARED_LIBRARY)

Can anyone please help me to compile and use SoundTouch lib on android?

UPDATE :

I changed my android.mk file as below 

LOCAL_PATH:= $(call my-dir)
include $(CLEAR_VARS)

LOCAL_CPP_FEATURES += -fno-exceptions

LOCAL_SRC_FILES := \
     SoundTouch/AAFilter.cpp \
     SoundTouch/BPMDetect.cpp \
     SoundTouch/cpu_detect_x86.cpp\
      SoundTouch/FIFOSampleBuffer.cpp \
      SoundTouch/FIRFilter.cpp \
      SoundTouch/mmx_optimized.cpp \
      SoundTouch/PeakFinder.cpp \
      SoundTouch/RateTransposer.cpp \
      SoundTouch/SoundTouch.cpp \
      SoundTouch/sse_optimized.cpp \
      SoundTouch/TDStretch.cpp 

LOCAL_MODULE := libSoundTouch

LOCAL_C_INCLUDES := include/BPMDetect.h include/FIFOSampleBuffer.h include/FIFOSamplePipe.h include/SoundTouch.h include/STTypes.h

include $(BUILD_SHARED_LIBRARY)

And now its working all fine. Thank you

Vipul Purohit
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  • To enable exceptions you need to use "LOCAL_CPP_FEATURES := exceptions rtti" in Android.mk file. What is the first error you are getting and on which line exactly? – Mārtiņš Možeiko Jul 02 '12 at 14:43
  • Hey, What you had done to build this library?? Just copy the Android.mk, Aplication.mk and soundtouch-jni.cpp ina new android project. and build it by NDK-build command ...I am following these steps but it is giving me error..similar to "http://stackoverflow.com/questions/15662981/soundtouch-building-with-android-ndk" – Jagdeep Singh Jun 13 '13 at 10:25

2 Answers2

2

I have successfully compiled by changing my android.mk file :

here is my android.mk file

include $(CLEAR_VARS)
LOCAL_PATH:= $(call my-dir)

LOCAL_CPP_FEATURES += -fno-exceptions

LOCAL_SRC_FILES := \
     SoundTouch/AAFilter.cpp \
     SoundTouch/BPMDetect.cpp \
     SoundTouch/cpu_detect_x86.cpp\
      SoundTouch/FIFOSampleBuffer.cpp \
      SoundTouch/FIRFilter.cpp \
      SoundTouch/mmx_optimized.cpp \
      SoundTouch/PeakFinder.cpp \
      SoundTouch/RateTransposer.cpp \
      SoundTouch/SoundTouch.cpp \
      SoundTouch/sse_optimized.cpp \
      SoundTouch/TDStretch.cpp 

LOCAL_MODULE := libSoundTouch

LOCAL_C_INCLUDES := include/BPMDetect.h include/FIFOSampleBuffer.h include/FIFOSamplePipe.h include/SoundTouch.h include/STTypes.h

include $(BUILD_SHARED_LIBRARY)
MemCtrl
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Vipul Purohit
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2

Check out THIS link this guy already compiled ready to use SoundTouch Android wrapper.

  • Currently capable of time-stretching and pitch shifting.
  • Currently only supports Androids with an FPU (armeabi-v7a).

Example usage:

//There are currently 16 track id's you can use (0-15), each one has a separate SoundTouch processor.

    //Set your audio processing requirements: track id, channels, samplingRate, bytesPerSample, 
    //                              tempoChange (1.0 is normal speed), pitchChange (in semi-tones)

    SoundTouch soundTouch = new SoundTouch(0, 2, 44100, 2, 1.0f, 2.0f);

    //byte[] sizes are recommended to be 8192 bytes.

    //put a byte[] of PCM audio in the sound processor:
    soundTouch.putBytes(input);

    //write output to a byte[]:
    int bytesReceived = soundTouch.getBytes(output);

    //after you write the last byte[], call finish().
    soundTouch.finish();

    //now get the remaining bytes from the sound processor.
    int bytesReceived = 0;
    do
    {
        bytesReceived = soundTouch.getBytes(output);
        //do stuff with output.
    } while (bytesReceived != 0)

    //if you stop playing, call clear on the track to clear the pipeline for later use.
    soundTouch.clearBuffer()

Visit above github link for more details.

Muhammad Nasir Shamshad
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