海思3559A上编译libyuv源码操作步骤

1. 下载libyuv源代码，执行：
   git clone https://chromium.googlesource.com/libyuv/libyuv

2. 通过CMakeLists.txt编译生成库，build.sh脚本内容如下：

   cmake \
   
   -DCMAKE_BUILD_TYPE=RELEASE \
   
   -DCMAKE_C_COMPILER=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/bin/aarch64-himix100-linux-gcc \
   
   -DCMAKE_CXX_COMPILER=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/bin/aarch64-himix100-linux-g++ \
   
   -DCMAKE_INSTALL_PREFIX=./install \
   
   ..

3. 在libyuv根目录下，依次执行如下命令，执行完后会将生成的文件和库存放在build/install目录下，如下图所示：

   mkdir build
   
   cd build
   
   cp ../build.sh .
   
   ./builld.sh
   
   make -j8
   
   make install

   

4. 也可以通过*.mk生成，拷贝原linux.mk为hi3559a.mk并修改hi3559a.mk内容，修改后的内容如下：

   # This is a generic makefile for libyuv for gcc.
   
   # make -f linux.mk CXX=clang++

   CC=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/bin/aarch64-himix100-linux-gcc

   CFLAGS?=-O2 -fomit-frame-pointer -fPIC -DLIBYUV_NEON

   CFLAGS+=-Iinclude/

   CXX=/opt/hisi-linux/x86-arm/aarch64-himix100-linux/bin/aarch64-himix100-linux-g++

   CXXFLAGS?=-O2 -fomit-frame-pointer -fPIC -DLIBYUV_NEON

   CXXFLAGS+=-Iinclude/

   LOCAL_OBJ_FILES := \

   source/compare.o \

   source/compare_common.o \

   source/compare_gcc.o \

   source/compare_mmi.o \

   source/compare_msa.o \

   source/compare_neon64.o \

   source/compare_neon.o \

   source/compare_win.o \

   source/convert_argb.o \

   source/convert.o \

   source/convert_from_argb.o \

   source/convert_from.o \

   source/convert_jpeg.o \

   source/convert_to_argb.o \

   source/convert_to_i420.o \

   source/cpu_id.o \

   source/mjpeg_decoder.o \

   source/mjpeg_validate.o \

   source/planar_functions.o \

   source/rotate_any.o \

   source/rotate_argb.o \

   source/rotate.o \

   source/rotate_common.o \

   source/rotate_gcc.o \

   source/rotate_mmi.o \

   source/rotate_msa.o \

   source/rotate_neon64.o \

   source/rotate_neon.o \

   source/rotate_win.o \

   source/row_any.o \

   source/row_common.o \

   source/row_gcc.o \

   source/row_mmi.o \

   source/row_msa.o \

   source/row_neon64.o \

   source/row_neon.o \

   source/row_win.o \

   source/scale_any.o \

   source/scale_argb.o \

   source/scale.o \

   source/scale_common.o \

   source/scale_gcc.o \

   source/scale_mmi.o \

   source/scale_msa.o \

   source/scale_neon64.o \

   source/scale_neon.o \

   source/scale_win.o \

   source/video_common.o

   .cc.o:

   $(CXX) -c $(CXXFLAGS) $.cc -o $.o

   .c.o:

   $(CC) -c $(CFLAGS) $.c -o $.o

   all: libyuv.a yuvconvert cpuid psnr

   libyuv.a: $(LOCAL_OBJ_FILES)

   $(AR) $(ARFLAGS) $@ $(LOCAL_OBJ_FILES)

   A C++ test utility that uses libyuv conversion.

   yuvconvert: util/yuvconvert.cc libyuv.a

   $(CXX) $(CXXFLAGS) -Iutil/ -o $@ util/yuvconvert.cc libyuv.a

   A standalone test utility

   psnr: util/psnr.cc

   $(CXX) $(CXXFLAGS) -Iutil/ -o $@ util/psnr.cc util/psnr_main.cc util/ssim.cc

   A C test utility that uses libyuv conversion from C.

   gcc 4.4 and older require -fno-exceptions to avoid link error on __gxx_personality_v0

   CC=gcc-4.4 CXXFLAGS=-fno-exceptions CXX=g++-4.4 make -f linux.mk

   cpuid: util/cpuid.c libyuv.a

   $(CC) $(CFLAGS) -o $@ util/cpuid.c libyuv.a

   clean:

   /bin/rm -f source/.o .ii *.s libyuv.a yuvconvert cpuid psnr

5. 执行以下命令后同样可以生成libyuv.a静态库：
   make -f hi3559a.mk

注：如果需要在libyuv中调用mjpegtoyuv相关的接口还需要依赖libjpeg库，并且需要在脚本中定义HAVE_JPEG。
GitHub：https://github.com/fengbingchun/OpenCV_Test

原文链接：https://blog.csdn.net/dong_beijing/article/details/96480219