- 在x264的源碼文件夾下 /configure --prefix=/home/phoenix/document/hisiv3519/x264_hi3519 --enable-shared --enable-static --host=arm-hisiv500-linux --disable-asm
修改config.mak
Sudo gedit config.mak
主要將：
common/rectangle.h:84: error: ‘v4si’ undeclared (first use in this function)
common/rectangle.h:84: error: (Each undeclared identifier is reported only once
common/rectangle.h:84: error: for each function it appears in.)
common/rectangle.h:84: error: expected ‘;’ before ‘v16’
common/rectangle.h:86: error: ‘__m128’ undeclared (first use in this function)
common/rectangle.h:86: error: expected ‘;’ before ‘v16’
make: *** [x264.o] Error 1
在網上各種搜索也沒找到所以然，想起來之前用基於hisiv600工具鏈編譯是成功的，就像是不是出在編譯鏈上，然後看到文件裏說：使用某一工具鏈編譯後，如果需要更換工具鏈，請先將原工具鏈編譯文件清除，然後再更換工具鏈編譯。所以將/etc/profile裏面關於hisiv600的路徑註釋掉，再source /etc/profile ,用命令arm+回車發現hisiv600的工具鏈仍然存在，然後重啓虛擬機，只剩hisiv500的工具鏈，重新編譯x264，成功
2.編譯ffmpeg
./configure --prefix=/home/phoenix/document/hisiv3519/ffmpeg_hi3519 --enable-static --enable-cross-compile --arch=arm --target-os=linux --cc=arm-hisiv500-linux-gcc --enable-libx264 --enable-gpl --enable-pthreads --disable-stripping --ar=arm-hisiv500-linux-ar --ld=arm-hisiv500-linux-gcc --strip=arm-hisiv500-strip --extra-cflags=-I/home/phoenix/document/hisiv3519/x264_hi3519/include --extra-ldflags=L/home/phoenix/document/ hisiv3519/ x264_hi3519/lib
make
make install
3.編譯opencv
如下圖，operation stystem和version processor隨便寫，編譯器分別選擇gcc和g++，編譯器的目錄在/opt/hisi-linux/x86-arm/arm-hisiv500-linux/target/bin/arm-hisiv500-linux-gcc，targetroot選擇arm-linux編譯器的頭文件目錄，我這裏是/opt/hisi-linux/x86-arm/gcc-3.4.3-uClibc-0.9.28/usr/include/。點擊finish完成。
這個方法不行，直接按下面的步驟來吧
把/home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/platforms/linux下面的arm-gnueabi.toolchain.cmake重命名爲arm-hisiv500-linux.toolchain.cmake，把它所有東西刪掉，並修改內容
set( CMAKE_SYSTEM_NAME Linux )
set( CMAKE_SYSTEM_PROCESSOR arm )
set( CMAKE_C_COMPILER arm-hisiv500-linux-gcc ) set( CMAKE_CXX_COMPILER arm-hisiv500-linux-g++ )
按照官方教程，在opencv-2.4.9下建立一個build目錄，cd進入源碼目錄，執行一下命令： cmake -DCMAKE_TOOLCHAIN_FILE=/home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/platforms/ l i n ux/arm-hisiv500-linux.toolchain.cmake
過程中所出現的錯誤有：
- CMake Error: The source directory "/home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/build" does not appear to contain CMakeLists.txt. Specify --help for usage, or press the help button on the CMake GUI. 原因：在build目錄下執行的命令 cmake -DCMAKE_TOOLCHAIN_FILE=/home/phoenix/ document/hisiv3519/ sourcecode/opencv-2.4.9/platforms/ linux/arm-hisiv500-linux.toolchain.cmake，應該在opencv源碼目錄下執行這條指令
- CMake Error at /usr/local/share/cmake-3.2/Modules/CMakeDetermineSystem.cmake:104 (message): Could not find toolchain file: ../platforms/linux/arm-hisiv500-linux.toolchain.cmake../ Call Stack (most recent call first):CMakeLists.txt:56 (project)
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_CXX_COMPILER
CMake Error: Could not find cmake module file: /home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/CMakeFiles/3.2.2/CMakeCXXCompiler.cmake
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER_ENV_VAR
CMake Error: Error required internal CMake variable not set, cmake may be not be built correctly.
Missing variable is:
CMAKE_C_COMPILER
CMake Error: Could not find cmake module file: /home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/CMakeFiles/3.2.2/CMakeCCompiler.cmake
CMake Error at CMakeLists.txt:56 (project):
No CMAKE_CXX_COMPILER could be found.
Tell CMake where to find the compiler by setting the CMake cache entry
CMAKE_CXX_COMPILER to the full path to the compiler, or to the compiler
name if it is in the PATH.
CMake Error at CMakeLists.txt:56 (project):
No CMAKE_C_COMPILER could be found.
Tell CMake where to find the compiler by setting the CMake cache entry
CMAKE_C_COMPILER to the full path to the compiler, or to the compiler name
if it is in the PATH.
CMake Error: CMAKE_CXX_COMPILER not set, after EnableLanguage
CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage-- Configuring incomplete, errors occurred! 原因：在源代碼下執行的是命令 cmake -DCMAKE_TOOLCHAIN_FILE=../platforms/linux/arm-hisiv500-linux. toolchain.cmake../ 被自己蠢哭了，那個../是要自己對照着路徑修改補齊的，我直接粘貼複製的。 綜上，應該在opencv的源碼目錄下建一個build目錄，並在opencv的源碼目錄下執行指令 用cmake-gui打開opencv的源碼目錄下的CMakeCache.txt，參照前面的博客把一些用不到選項的去掉，修改安裝目 錄/home/phoenix/ docume nt/ hisiv3519/opencv_hi3519。然後 make和 make install。在/home/phoenix/document /hisiv3519/ opencv _hi3 519， 裏面有庫文件和頭文件（後面的事實證明這一波操作還是錯的![大哭]()
） - 在編譯自己的程序的時候出現錯誤：/home/phoenix/document/hisiv3519/opencv_hi3519/ lib/ libopencv_imgproc.a ：error adding symbols: 不可識別的文件格式 collect2: error: ld returned 1 exit status。 原因：說是不可識別的文件格式，那肯定是用錯編譯器了，打開CMakeCache.txt一看果不其然，後來想通了，我用的opencv的源碼目錄下的CMakeCache.txt，默認用的是編譯器路徑是/usr/bin/gcc. 終極正確操作應該是在 opencv的源碼目錄下新建build文件夾，在build下面執行下面的指令，真是，看了好多遍官網教程，都沒注意到要用的兩次源碼目錄
cmake -DCMAKE_TOOLCHAIN_FILE=/home/phoenix/document/hisiv3519/sourcecode/opencv-2.4.9/platforms /linux/arm-hisiv500-linux.toolchain.cmake（空格）/home/phoenix/document /hisiv3519/ sourcecode/opencv -2.4.9 然後，執行完這一句之後，在build下面會出現一個CMakeCache.txt，用cmake打開這個CMakeCache.txt，然後參照前面的博客把一些用不到選項的去掉，修改安裝目 錄/home/phoenix/ docume nt/ hisiv3519/opencv_hi3519。然後 make和 make install。
）
- 終於對了，我都把那些選項背會了。