Add android platform support

README.android

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+#Using Speex on Android
+
+##Introduction
+------------
+
+The android/ directory contains android ndk-build dependent files:
+-config.h   Configuration options for android arm platform
+-speex_config_types.h   Configuration options for android arm platform
+-jni  Build script for android ndk-build
+
+##Build
+Just need run cmd: cd android && ndk-build
+
+##Standalone toolchain
+If you have ndk standalone toolchain, just need run cmd:
+export CC=arm-linux-androideabi-gcc && ./configure --host=arm --enable-arm5e-asm --enable-fixed-point --disable-float-api && make -j4
+

android/inc/arm/config.h

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+/* config.h.  Generated from config.h.in by configure.  */
+/* config.h.in.  Generated from configure.ac by autoheader.  */
+
+/* Define if building universal (internal helper macro) */
+/* #undef AC_APPLE_UNIVERSAL_BUILD */
+
+/* Make use of ARM4 assembly optimizations */
+/* #undef ARM4_ASM */
+
+/* Make use of ARM5E assembly optimizations */
+#define ARM5E_ASM /**/
+
+/* Make use of Blackfin assembly optimizations */
+/* #undef BFIN_ASM */
+
+/* Disable all parts of the API that are using floats */
+#define DISABLE_FLOAT_API /**/
+
+/* Disable VBR and VAD from the codec */
+/* #undef DISABLE_VBR */
+
+/* Enable valgrind extra checks */
+/* #undef ENABLE_VALGRIND */
+
+/* Symbol visibility prefix */
+#define EXPORT __attribute__((visibility("default")))
+
+/* Debug fixed-point implementation */
+/* #undef FIXED_DEBUG */
+
+/* Compile as fixed-point */
+#define FIXED_POINT /**/
+
+/* Compile as floating-point */
+/* #undef FLOATING_POINT */
+
+/* Define to 1 if you have the <alloca.h> header file. */
+#define HAVE_ALLOCA_H 1
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#define HAVE_DLFCN_H 1
+
+/* Define to 1 if you have the <getopt.h> header file. */
+#define HAVE_GETOPT_H 1
+
+/* Define to 1 if you have the `getopt_long' function. */
+#define HAVE_GETOPT_LONG 1
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#define HAVE_INTTYPES_H 1
+
+/* Define to 1 if you have the <memory.h> header file. */
+#define HAVE_MEMORY_H 1
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#define HAVE_STDINT_H 1
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#define HAVE_STDLIB_H 1
+
+/* Define to 1 if you have the <strings.h> header file. */
+#define HAVE_STRINGS_H 1
+
+/* Define to 1 if you have the <string.h> header file. */
+#define HAVE_STRING_H 1
+
+/* Define to 1 if you have the <sys/audioio.h> header file. */
+/* #undef HAVE_SYS_AUDIOIO_H */
+
+/* Define to 1 if you have the <sys/soundcard.h> header file. */
+/* #undef HAVE_SYS_SOUNDCARD_H */
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#define HAVE_SYS_STAT_H 1
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#define HAVE_SYS_TYPES_H 1
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#define HAVE_UNISTD_H 1
+
+/* Define to the sub-directory in which libtool stores uninstalled libraries.
+   */
+#define LT_OBJDIR ".libs/"
+
+/* Define to the address where bug reports for this package should be sent. */
+#define PACKAGE_BUGREPORT "[email protected]"
+
+/* Define to the full name of this package. */
+#define PACKAGE_NAME "speex"
+
+/* Define to the full name and version of this package. */
+#define PACKAGE_STRING "speex 1.2rc2"
+
+/* Define to the one symbol short name of this package. */
+#define PACKAGE_TARNAME "speex"
+
+/* Define to the home page for this package. */
+#define PACKAGE_URL ""
+
+/* Define to the version of this package. */
+#define PACKAGE_VERSION "1.2rc2"
+
+/* The size of `int', as computed by sizeof. */
+#define SIZEOF_INT 4
+
+/* The size of `int16_t', as computed by sizeof. */
+#define SIZEOF_INT16_T 2
+
+/* The size of `int32_t', as computed by sizeof. */
+#define SIZEOF_INT32_T 4
+
+/* The size of `long', as computed by sizeof. */
+#define SIZEOF_LONG 4
+
+/* The size of `short', as computed by sizeof. */
+#define SIZEOF_SHORT 2
+
+/* The size of `uint16_t', as computed by sizeof. */
+#define SIZEOF_UINT16_T 2
+
+/* The size of `uint32_t', as computed by sizeof. */
+#define SIZEOF_UINT32_T 4
+
+/* The size of `u_int16_t', as computed by sizeof. */
+#define SIZEOF_U_INT16_T 2
+
+/* The size of `u_int32_t', as computed by sizeof. */
+#define SIZEOF_U_INT32_T 4
+
+/* Version extra */
+#define SPEEX_EXTRA_VERSION ""
+
+/* Version major */
+#define SPEEX_MAJOR_VERSION 1
+
+/* Version micro */
+#define SPEEX_MICRO_VERSION 16
+
+/* Version minor */
+#define SPEEX_MINOR_VERSION 1
+
+/* Complete version string */
+#define SPEEX_VERSION "1.2rc2"
+
+/* Define to 1 if you have the ANSI C header files. */
+#define STDC_HEADERS 1
+
+/* Enable support for TI C55X DSP */
+/* #undef TI_C55X */
+
+/* Make use of alloca */
+/* #undef USE_ALLOCA */
+
+/* Use FFTW3 for FFT */
+/* #undef USE_GPL_FFTW3 */
+
+/* Use Intel Math Kernel Library for FFT */
+/* #undef USE_INTEL_MKL */
+
+/* Use KISS Fast Fourier Transform */
+#define USE_KISS_FFT /**/
+
+/* Use FFT from OggVorbis */
+/* #undef USE_SMALLFT */
+
+/* Use SpeexDSP library */
+/* #undef USE_SPEEXDSP */
+
+/* Use C99 variable-size arrays */
+#define VAR_ARRAYS /**/
+
+/* Enable support for the Vorbis psy model */
+/* #undef VORBIS_PSYCHO */
+
+/* Define WORDS_BIGENDIAN to 1 if your processor stores words with the most
+   significant byte first (like Motorola and SPARC, unlike Intel). */
+#if defined AC_APPLE_UNIVERSAL_BUILD
+# if defined __BIG_ENDIAN__
+#  define WORDS_BIGENDIAN 1
+# endif
+#else
+# ifndef WORDS_BIGENDIAN
+/* #  undef WORDS_BIGENDIAN */
+# endif
+#endif
+
+/* Enable SSE support */
+/* #undef _USE_SSE */
+
+/* Define to empty if `const' does not conform to ANSI C. */
+/* #undef const */
+
+/* Define to `__inline__' or `__inline' if that's what the C compiler
+   calls it, or to nothing if 'inline' is not supported under any name.  */
+#ifndef __cplusplus
+/* #undef inline */
+#endif
+
+/* Define to the equivalent of the C99 'restrict' keyword, or to
+   nothing if this is not supported.  Do not define if restrict is
+   supported directly.  */
+#define restrict __restrict
+/* Work around a bug in Sun C++: it does not support _Restrict or
+   __restrict__, even though the corresponding Sun C compiler ends up with
+   "#define restrict _Restrict" or "#define restrict __restrict__" in the
+   previous line.  Perhaps some future version of Sun C++ will work with
+   restrict; if so, hopefully it defines __RESTRICT like Sun C does.  */
+#if defined __SUNPRO_CC && !defined __RESTRICT
+# define _Restrict
+# define __restrict__
+#endif

android/inc/arm/speex_config_types.h

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+#ifndef __SPEEX_TYPES_H__
+#define __SPEEX_TYPES_H__
+
+#include <stdint.h>
+
+typedef int16_t spx_int16_t;
+typedef uint16_t spx_uint16_t;
+typedef int32_t spx_int32_t;
+typedef uint32_t spx_uint32_t;
+
+#endif
+