NKD编译opus-1.2.1

opus-1.2.1

官网：http://www.opus-codec.org

opus-1.2.1下载

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NDK编译

下载完opus-1.2.1后解压，进入解压后的目录新建目录Android，在Android目录内创建Android.mk和build.sh两个文件。内容如下。

Android.mk

LOCAL_PATH := $(call my-dir)/..

include $(CLEAR_VARS)

APP_ABI := armeabi
APP_CPPFLAGS +=-std=c++11
APP_STL := gnustl_shared
APP_PLATFORM :=android-14

include $(LOCAL_PATH)/celt_sources.mk
include $(LOCAL_PATH)/silk_sources.mk
include $(LOCAL_PATH)/opus_sources.mk

LOCAL_MODULE        := opus

# Fixed point sources
SILK_SOURCES        += $(SILK_SOURCES_FIXED)

# ARM build
CELT_SOURCES        += $(CELT_SOURCES_ARM)
SILK_SOURCES        += $(SILK_SOURCES_ARM)
LOCAL_SRC_FILES     := \
    $(CELT_SOURCES) $(SILK_SOURCES) $(OPUS_SOURCES) $(OPUS_SOURCES_FLOAT)

LOCAL_LDLIBS        := -lm -llog
LOCAL_C_INCLUDES    := \
    $(LOCAL_PATH)/include \
    $(LOCAL_PATH)/silk \
    $(LOCAL_PATH)/silk/fixed \
    $(LOCAL_PATH)/celt
LOCAL_CFLAGS        := -DNULL=0 -DSOCKLEN_T=socklen_t -DLOCALE_NOT_USED -D_LARGEFILE_SOURCE=1 -D_FILE_OFFSET_BITS=64
LOCAL_CFLAGS        += -Drestrict='' -D__EMX__ -DOPUS_BUILD -DFIXED_POINT -DUSE_ALLOCA -DHAVE_LRINT -DHAVE_LRINTF -O3 -fno-math-errno
LOCAL_CPPFLAGS      := -DBSD=1 
LOCAL_CPPFLAGS      += -ffast-math -O3 -funroll-loops

include $(BUILD_SHARED_LIBRARY)

build.sh

#!/bin/bash
ndk-build APP_BUILD_SCRIPT=Android.mk NDK_PROJECT_PATH=.

执行build.sh后就会进行编译了。（确保ndk已配置到环境变量中，否则指明ndk的路径。在cygwin中，使用ndk-build.cmd）

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其他

• 参考：http://blog.csdn.net/volvet/article/details/52167174