Build Opus Codec for Android

在Opus 1.1.2 的目录下建立Android 子目录,   建立 Android.mk 和 build.sh两个文件, 内容如下 

运行build.sh 就可以完成opus for android的编译.   

Android.mk

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

include $(CLEAR_VARS)

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 

ndk-build APP_BUILD_SCRIPT=Android.mk NDK_PROJECT_PATH=build

这个编译文件来自github的某个开源项目.