Android语音系列:编译Speex框架

原文:http://www.badlogicgames.com/wordpress/?p=1726&utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+PlanetAndroidCom+%28Planet+Android%29 

 

JSpeex does not work very well on Android, encoding times are between 0.03 to 0.2 seconds for a 320 samples frame. Way to much for any real-time app (can you say in-game voice chat? :p). So i set out to get the native speex to compile for Android. A couple of steps are involved if you don’t want to go the configure road with ndk r5b.

  1. Download the latest speex source distri.
  2. Create your project’s folder, and a jni/ folder inside that folder
  3. Copy the libspeex/ and include/ folders from the speex distri to your jni/ folder. You should end up with $project/jni/libspeex and $project/jni/include
  4. Add the following thingy as your Android.mk file in your jni/ folder
  5. LOCAL_PATH := $(call my-dir)
     
    include $(CLEAR_VARS)
     
    LOCAL_MODULE    := libspeex
    LOCAL_CFLAGS = -DFIXED_POINT -DUSE_KISS_FFT -DEXPORT="" -UHAVE_CONFIG_H
    LOCAL_C_INCLUDES := $(LOCAL_PATH)/include
     
    LOCAL_SRC_FILES :=  \
    ./libspeex/bits.c \
    ./libspeex/buffer.c \
    ./libspeex/cb_search.c \
    ./libspeex/exc_10_16_table.c \
    ./libspeex/exc_10_32_table.c \
    ./libspeex/exc_20_32_table.c \
    ./libspeex/exc_5_256_table.c \
    ./libspeex/exc_5_64_table.c \
    ./libspeex/exc_8_128_table.c \
    ./libspeex/fftwrap.c \
    ./libspeex/filterbank.c \
    ./libspeex/filters.c \
    ./libspeex/gain_table.c \
    ./libspeex/gain_table_lbr.c \
    ./libspeex/hexc_10_32_table.c \
    ./libspeex/hexc_table.c \
    ./libspeex/high_lsp_tables.c \
    ./libspeex/jitter.c \
    ./libspeex/kiss_fft.c \
    ./libspeex/kiss_fftr.c \
    ./libspeex/lpc.c \
    ./libspeex/lsp.c \
    ./libspeex/lsp_tables_nb.c \
    ./libspeex/ltp.c \
    ./libspeex/mdf.c \
    ./libspeex/modes.c \
    ./libspeex/modes_wb.c \
    ./libspeex/nb_celp.c \
    ./libspeex/preprocess.c \
    ./libspeex/quant_lsp.c \
    ./libspeex/resample.c \
    ./libspeex/sb_celp.c \
    ./libspeex/scal.c \
    ./libspeex/smallft.c \
    ./libspeex/speex.c \
    ./libspeex/speex_callbacks.c \
    ./libspeex/speex_header.c \
    ./libspeex/stereo.c \
    ./libspeex/vbr.c \
    ./libspeex/vq.c \
    ./libspeex/window.c
     
    include $(BUILD_SHARED_LIBRARY)
  6. Add the following thingy as your Application.mk file in the jni/ folder
    APP_ABI := armeabi armeabi-v7a

    This will compile binaries for the arm and arm-v7a cpus.

  7. Add the following thingy as a file called speex_config_types.h to the $project/jni/include/speex/ folder.
    #ifndef __SPEEX_TYPES_H__
    #define __SPEEX_TYPES_H__
    typedef short spx_int16_t;
    typedef unsigned short spx_uint16_t;
    typedef int spx_int32_t;
    typedef unsigned int spx_uint32_t;
    #endif

    最后一步 ndk-build 编译OK
    Compile thumb  : speex <= modes.c
    Compile thumb  : speex <= modes_wb.c
    Compile thumb  : speex <= nb_celp.c
    Compile thumb  : speex <= preprocess.c
    Compile thumb  : speex <= quant_lsp.c
    Compile thumb  : speex <= resample.c
    Compile thumb  : speex <= sb_celp.c
    Compile thumb  : speex <= scal.c
    Compile thumb  : speex <= smallft.c
    Compile thumb  : speex <= speex.c
    Compile thumb  : speex <= speex_callbacks.c
    Compile thumb  : speex <= speex_header.c
    Compile thumb  : speex <= stereo.c
    Compile thumb  : speex <= vbr.c
    Compile thumb  : speex <= vq.c
    Compile thumb  : speex <= window.c
    SharedLibrary  : libspeex.so
    Install        : libspeex.so => libs/armeabi-v7a/libspeex.so

     




posted on 2012-05-07 22:07  tinkl  阅读(2194)  评论(0编辑  收藏  举报

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