使用MSYS2 + MinGW64，編譯32bit x264過程

本文轉載自查看原文 2021-10-02 17:36 213 C# & Visual Studio/ Windows/ x264

使用MSYS2 + MinGW64，編譯32bit x264過程

（創建libx264-164.dll，2021年版）

Today is September 2021

網絡上的信息都有了一些新變化。茲記錄一下目前網絡資源環境下，使用MSYS2 + MinGW64，編譯x264過程，創建x264版本是libx264-164.dll。

l Windows10下安裝MSYS2 + MinGW64

利用msys2安裝mingw-w64過程：

按照 https://www.msys2.org/ 的提示安裝即可：下載並啟動文件：msys2-x86_64-20210725.exe，開始安裝。

下一步

在 MSYS2 MSYS（msys2_shell.cmd / msys2.exe）下安裝各種工具：

pacman -S mingw-w64-x86_64-toolchain（不編譯64bit 不需安裝這個）

pacman -S mingw-w64-i686-toolchain

pacman -S base-devel

pacman -S nasm（nasm用於編譯x264的匯編代碼）。

（提示：沒有安裝yasm！！！）

安裝完成之后，要注意msys2目錄下有：

clang64.exe
mingw32.exe	用mingw-w64-i686-toolchain 編譯。
mingw64.exe	用mingw-w64-x86_64-toolchain編譯。
msys2.exe
ucrt64.exe

注意：安裝MSYS工具一定在MSYS2 MSYS（msys2_shell.cmd）窗口中進行。

啟動MSYS2 MinGW 64-bit ，在mingw64.exe窗口中看gcc的版本， host= x86_64-w64-mingw32。屏幕顯示如下：

$ gcc -v

Using built-in specs.

COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe

COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/lto-wrapper.exe

Target: x86_64-w64-mingw32

Configured with: ../gcc-10.3.0/configure --prefix=/mingw64 --with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32 --host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32 --with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include --libexecdir=/mingw64/lib --enable-bootstrap --enable-checking=release --with-arch=x86-64 --with-tune=generic --enable-languages=c,lto,c++,fortran,ada,objc,obj-c++,jit --enable-shared --enable-static --enable-libatomic --enable-threads=posix --enable-graphite --enable-fully-dynamic-string --enable-libstdcxx-filesystem-ts=yes --enable-libstdcxx-time=yes --disable-libstdcxx-pch --disable-libstdcxx-debug --enable-lto --enable-libgomp --disable-multilib --disable-rpath --disable-win32-registry --disable-nls --disable-werror --disable-symvers --with-libiconv --with-system-zlib --with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64 --with-isl=/mingw64 --with-pkgversion='Rev5, Built by MSYS2 project' --with-bugurl=https://github.com/msys2/MINGW-packages/issues --with-gnu-as --with-gnu-ld --with-boot-ldflags='-pipe -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high -Wl,--disable-dynamicbase -static-libstdc++ -static-libgcc' 'LDFLAGS_FOR_TARGET=-pipe -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high' --enable-linker-plugin-flags='LDFLAGS=-static-libstdc++\ -static-libgcc\ -pipe\ -Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high\ -Wl,--stack,12582912'

Thread model: posix

Supported LTO compression algorithms: zlib zstd

gcc version 10.3.0 (Rev5, Built by MSYS2 project)

john@LAPTOP-FJNTRVPC MINGW64 ~

啟動 MSYS2 MinGW 32-bit，在mingw32.exe窗口中看gcc的版本， host=x86_64-w64-mingw32

john@LAPTOP-FJNTRVPC MINGW64 ~/x264-master

$ gcc -v

Using built-in specs.

COLLECT_GCC=C:\msys64\mingw64\bin\gcc.exe

COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.3.0/lto-wrapper.exe

Target: x86_64-w64-mingw32

Thread model: posix

Supported LTO compression algorithms: zlib zstd

gcc version 10.3.0 (Rev5, Built by MSYS2 project)

查看nasm版本：

$ nasm -v

NASM version 2.15.05 compiled on Oct 24 2020

編譯x264

https://code.videolan.org/videolan/x264/-/archive/master/x264-master.tar.bz2

x264-master.tar.bz2

解壓到home/john 目錄下。

編譯64bit代碼，啟動 MSYS2 MinGW 64-bit 或者

編譯32bit代碼，啟動 MSYS2 MinGW 32-bit

l 開始編譯

在 MSYS2 MinGW 32-bit 環境下

$ ./configure --host=i686-w64-mingw32 --enable-shared --extra-ldflags=-Wl,--output-def=libx264.def

platform: X86

byte order: little-endian

system: WINDOWS

cli: yes

libx264: internal

shared: yes

static: no

bashcompletion: no

asm: yes

interlaced: yes

avs: avisynth

lavf: no

ffms: no

mp4: no

gpl: yes

thread: win32

opencl: yes

filters: crop select_every

lto: no

debug: no

gprof: no

strip: no

PIC: no

bit depth: all

chroma format: all

You can run 'make' or 'make fprofiled' now.

john@LAPTOP-FJNTRVPC MINGW32 ~/x264-master

$ make

dependency file generation...

windres --target=pe-i386 -I. -o x264res.o x264res.rc

gcc -Wno-maybe-uninitialized -Wshadow -O3 -ffast-math -m32 -Wall -I. -I. -D_POSIX_C_SOURCE=200112L -march=i686 -mfpmath=sse -msse -msse2 -std=gnu99 -D_GNU_SOURCE -mpreferred-stack-boundary=6 -fomit-frame-pointer -fno-tree-vectorize -fno-zero-initialized-in-bss -fvisibility=hidden -c x264.c -o x264.o

略

john@LAPTOP-FJNTRVPC MINGW32 ~/x264-master

$ make install

install -d /usr/local/bin

install x264.exe /usr/local/bin

install -d /usr/local/include /usr/local/lib/pkgconfig

install -m 644 ./x264.h x264_config.h /usr/local/include

install -m 644 x264.pc /usr/local/lib/pkgconfig

install -d /usr/local/lib

install -d /usr/local/bin

install -m 755 libx264-164.dll /usr/local/bin

install -m 644 libx264.dll.a /usr/local/lib

john@LAPTOP-FJNTRVPC MINGW32 ~/x264-master

$ ls -lt

total 9572

-rwxr-xr-x 1 john john 3012773 Sep 29 00:31 libx264-164.dll

-rw-r--r-- 1 john john 1532 Sep 29 00:31 libx264.def

-rw-r--r-- 1 john john 34490 Sep 29 00:31 libx264.dll.a

-rw-r--r-- 1 john john 644 Sep 29 00:31 x264dll.o

-rw-r--r-- 1 john john 948 Sep 29 00:31 x264res.dll.o

-rwxr-xr-x 1 john john 3236994 Sep 29 00:31 x264.exe

-rw-r--r-- 1 john john 2951576 Sep 29 00:31 libx264.a

在cmd中

C:\msys64\home\john\x264-master>LIB /DEF:libx264.def

Microsoft (R) Library Manager Version 14.29.30133.0

LINK : warning LNK4068: 未指定 /MACHINE；默認設置為 X86

正在創建庫 libx264.lib 和對象 libx264.exp

C:\msys64\home\john\x264-master>

返回 MSYS2 MinGW 32-bit窗口中：

john@LAPTOP-FJNTRVPC MINGW32 ~/x264-master

$ ls -lt

total 9584

-rw-r--r-- 1 john john 13106 Sep 29 00:38 libx264.lib

-rw-r--r-- 1 john john 7738 Sep 29 00:38 libx264.exp

-rwxr-xr-x 1 john john 3012773 Sep 29 00:31 libx264-164.dll

-rw-r--r-- 1 john john 1532 Sep 29 00:31 libx264.def

-rw-r--r-- 1 john john 34490 Sep 29 00:31 libx264.dll.a

-rw-r--r-- 1 john john 644 Sep 29 00:31 x264dll.o

-rw-r--r-- 1 john john 948 Sep 29 00:31 x264res.dll.o

-rwxr-xr-x 1 john john 3236994 Sep 29 00:31 x264.exe

-rw-r--r-- 1 john john 2951576 Sep 29 00:31 libx264.a

164是x264的版本號。將libx264-164.dll 文件改名libx264.dll和libx264.lib文件x264.h，x264_config.h一並放置測試工程的相應目錄，編譯測試工程中會發現還缺少如下dll文件：libgcc_s_dw2-1.dll，libwinpthread-1.dll，等。從MSYS2復制它們到測試工程的相應目錄，測試工程編譯成功。

附錄測試代碼：

 1 #include <iostream>
 2 #include <string>
 3 #include "stdint.h"
 4 
 5 #pragma comment(lib, "libx264.lib")
 6 
 7 extern "C"
 8 {
 9 #include ".\x264.h"
10 #include "x264_config.h"
11 }; 
12 
13 using namespace std; 
14 
15 int main()
16 {
17     std::cout << "Hello World!\n";
18    x264_param_t param;
19    x264_param_default(&param);
20    cout << "hello,x264" << endl;
21 }
22 
23

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