windows下编译cef最新版本并支持mp3/mp4

预读

• 不懂就请参考官方地址
• 一般要2步，下载 和 编译
• 创建文件结构

~/code/
  automate/           <-- 全部脚本放到这里
    automate-git.py   <-- CEF build script
  chromium_git/
    cef/              <-- CEF source checkout
    chromium/
      src/            <-- Chromium source checkout
    update.[bat|sh]   <-- Bootstrap script for automate-git.py
  depot_tools/        <-- Chromium build tools

• 安装ninja,并加添到系统环境变量Clicked Me
• 最好不要在nvme盘上clone,可能导致clone卡死

详说

下载

1. 在automate下创建update.bat，内容为如下，执行该脚本，支持mp3 mp4~下载很快，代码可能就20来G样子，我下载速度10M/s还是很快，主要参考地址
2. 该脚本会先下载depot_tools这个项目，再通过depot_tools下载源码，如果源码下载失败，需要重新下载源码可以不用再下载depot_tools，调用automate-git.py加一个参数,例： --depot-tools-dir=D:\code\chromium_git\depot_tools

::download
set CEF_USE_GN=1
set GN_DEFINES=is_official_build=true ffmpeg_branding=Chrome proprietary_codecs=true
set GN_ARGUMENTS=--ide=vs2017 --sln=cef --filters=//cef/*
set GYP_DEFINES=buildtype=Official
set GYP_MSVS_VERSION=2017
set CEF_ARCHIVE_FORMAT=tar.bz2
python automate-git.py --download-dir=F:\code\chromium_git --branch=3809 --minimal-distrib --client-distrib --force-clean --no-build
pause
::automate-git.py脚本下载地址和为什么选择--branch=3809 参考 https://bitbucket.org/chromiumembedded/cef/wiki/BranchesAndBuilding.md

编译过程

• 如下的全部脚本文件放到code/automate下
• 修改源文件准备支持mp3,mp4,针对win32的话，修改F:\code\chromium_git\chromium\src\third_party\ffmpeg\chromium\config\Chrome\win\ia32\config.h,把部分#define 由0改为1，针对此操作，我写了一个脚本修改支持
• 这些是要改的内容，写到本地文件mp4_support.txt

#define CONFIG_FLV_DECODER 1
#define CONFIG_H263_DECODER 1
#define CONFIG_H263I_DECODER 1
#define CONFIG_MPEG4_DECODER 1
#define CONFIG_MPEGVIDEO_DECODER 1
#define CONFIG_MSMPEG4V1_DECODER 1
#define CONFIG_MSMPEG4V2_DECODER 1
#define CONFIG_MSMPEG4V3_DECODER 1
#define CONFIG_RV10_DECODER 1
#define CONFIG_RV20_DECODER 1
#define CONFIG_RV30_DECODER 1
#define CONFIG_RV40_DECODER 1
#define CONFIG_AC3_DECODER 1
#define CONFIG_AMRNB_DECODER 1
#define CONFIG_AMRWB_DECODER 1
#define CONFIG_COOK_DECODER 1
#define CONFIG_SIPR_DECODER 1
#define CONFIG_FLV_ENCODER 1
#define CONFIG_H263_ENCODER 1
#define CONFIG_MPEG4_ENCODER 1
#define CONFIG_MSMPEG4V2_ENCODER 1
#define CONFIG_MSMPEG4V3_ENCODER 1
#define CONFIG_RV10_ENCODER 1
#define CONFIG_RV20_ENCODER 1
#define CONFIG_AAC_ENCODER 1
#define CONFIG_AC3_ENCODER 1
#define CONFIG_AC3_PARSER 1
#define CONFIG_COOK_PARSER 1
#define CONFIG_H263_PARSER 1
#define CONFIG_MPEG4VIDEO_PARSER 1
#define CONFIG_MPEGVIDEO_PARSER 1
#define CONFIG_RV30_PARSER 1
#define CONFIG_RV40_PARSER 1
#define CONFIG_SIPR_PARSER 1
#define CONFIG_AC3_DEMUXER 1
#define CONFIG_AMR_DEMUXER 1
#define CONFIG_AMRNB_DEMUXER 1
#define CONFIG_AMRWB_DEMUXER 1
#define CONFIG_AVI_DEMUXER 1
#define CONFIG_AVISYNTH_DEMUXER 1
#define CONFIG_FLV_DEMUXER 1
#define CONFIG_H263_DEMUXER 1
#define CONFIG_H264_DEMUXER 1
#define CONFIG_MPEGTS_DEMUXER 1
#define CONFIG_MPEGTSRAW_DEMUXER 1
#define CONFIG_MPEGVIDEO_DEMUXER 1
#define CONFIG_RM_DEMUXER 1
#define CONFIG_AC3_MUXER 1
#define CONFIG_AMR_MUXER 1
#define CONFIG_AVI_MUXER 1
#define CONFIG_FLV_MUXER 1
#define CONFIG_H263_MUXER 1
#define CONFIG_H264_MUXER 1
#define CONFIG_MPEGTS_MUXER 1
#define CONFIG_RM_MUXER 1

• SupportMp4.py

## 第一参数为上面要修改的#define 的文件路径，第二参数为 F:\code\chromium_git\chromium\src\third_party\ffmpeg\chromium\config\Chrome\win\ia32\config.h
import sys
import shutil
import re
import os

def Replace(change,content):
   str_array = re.findall("#define\s\w+\s",change)
   str_replace =str_array[0]
   str_replace+="0"
   str_dest =str_array[0]
   str_dest+="1"
   return content.replace(str_replace,str_dest)

if len(sys.argv) > 2 :
   src_file_name =sys.argv[1]
   dest_file_name=sys.argv[2]
else:
   src_file_name =raw_input("Please input src file path name:").replace("\r","")
   dest_file_name =raw_input("Please input dest file path name:").replace("\r","")


file_src_handle = open(src_file_name,"r")
file_src_lines = file_src_handle.readlines()
file_src_handle.close()
file_dest_handle = open(dest_file_name,"r")
dest_file_content = file_dest_handle.read()
file_dest_handle.close()

for line in file_src_lines:
    dest_file_content = Replace(line,dest_file_content)

write_file_path = os.getcwd()+"\\"+ os.path.basename(dest_file_name)
ready_copy = open(write_file_path,"w")
ready_copy.write(dest_file_content)
ready_copy.close()

shutil.copy(write_file_path,dest_file_name)
os.remove(write_file_path)
print("Support mp4 Success!!!")

• 再创建一个启动RunSupportMp4.bat 并运行

python SupportMp4.py F:/code/automate/mp4_support.txt F:/code/chromium_git/chromium/src/third_party/ffmpeg/chromium/config/Chrome/win/ia32/config.h
pause

• 创建env.bat脚本

set path=%path%;F:\code\depot_tools;F:\code\chromium_git\chromium\src

• 创建BuildNinga,Ninga是一个超快的编译工具，并小巧

env.bat
set CEF_USE_GN=1
set GN_DEFINES=is_official_build=true ffmpeg_branding=Chrome proprietary_codecs=true 
set GYP_DEFINES=buildtype=Official    
set GYP_MSVS_VERSION=2017
set CEF_ARCHIVE_FORMAT=tar.bz2

set GYP_GENERATORS=ninja,msvs-ninja
set GN_ARGUMENTS=--ide=vs2017 --sln=cef --filters=//cef/*

set WIN_CUSTOM_TOOLCHAIN=1
set CEF_VCVARS=none
set GYP_MSVS_OVERRIDE_PATH=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community
set SDK_ROOT=C:\Program Files (x86)\Windows Kits\10
set INCLUDE=C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\um;C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\ucrt;C:\Program Files (x86)\Windows Kits\10\Include\10.0.17763.0\shared;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\include;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\atlmfc\include;%INCLUDE%
set PATH=C:\Program Files (x86)\Windows Kits\10\bin\10.0.17763.0\x86;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\bin\HostX64\x86;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\bin\HostX64\x64;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Redist\MSVC\14.13.26020\x64\Microsoft.VC141.CRT;%PATH%
set LIB=C:\Program Files (x86)\Windows Kits\10\Lib\10.0.17763.0\um\x86;C:\Program Files (x86)\Windows Kits\10\Lib\10.0.17763.0\ucrt\x86;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\lib\x86;C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\atlmfc\lib\x86;%LIB%
set VS_CRT_ROOT=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Tools\MSVC\14.13.26128\crt\src\vcruntime
::python automate-git.py --download-dir=e:\buildLib\cef\source --depot-tools-dir=e:\buildLib\cef\depot_tools --branch=3359 --no-update --no-debug-build --build-log-file --verbose-build --force-distrib --force-build
python automate-git.py --download-dir=F:\code\chromium_git --depot-tools-dir=F:\code\depot_tools --branch=3809 --no-update --no-debug-build --build-log-file --verbose-build --force-distrib --force-build
pause

如果前面全部都顺利的话，你会看到F:\code\chromium_git\chromium\src\out目录，里面有一堆准备使用ninga来编译的工程！！！
最后一步,执行如下操作，然后进行死亡等待

cd F:\code\chromium_git\chromium\src
ninja -C out\Release_GN_x86 cef

编译好后,打开地址F:\code\chromium_git\chromium\src\out\Release_GN_x86 测试有没有成功支持mp4: http://html5test.com/

---

出错解决方案

源码下载完毕，卡到Resolving deltas: 100% (10224481/10224481), done

这个问题，折腾了我2天，想通过设置代理的方式解决，失败告终，但我通过奇技淫巧也成功编译了，首先停止脚本运行，修改一下automate-git.py，把13**多行的,sync git clone — job 16这句注释调，再执行下载脚本，跳过下载源码的过程

python ImportError: No module named win32file

参考：点这里

解决方法：cd 到depot_tools下的bootstrap-3_8_0_chromium_8_bin,然后进入python里面,给python安装 pywin32这个库

python -m pip install pywin32

卡到下载depot_tool位置

修改脚本 automate-git.py 188行，使用下载支持proxy请求

  proxies = {'http': 'http://127.0.0.1:61422'}
  opener = FancyURLopener(proxies)