一、环境准备
Mac系统版本：12.0.1 (21A559)
Xcode版本：13.1 (13A1030d)
brew --version
git --version
yasm --version
pkg-config --version
未完成安装的，安装下所缺少的
- 安装
brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
- 卸载
brew
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
- 使用
brew安装git
brew install git
- 使用
brew安装yasm
brew install yasm
-
使用brew安装pkg-config
brew install pkg-config
完成后
二、下载ffmpeg
- 克隆仓库到本地
//克隆仓库到指定位置并重命名为ijkplayer-ios
git clone https://github.com/Bilibili/ijkplayer.git ijkplayer-ios
- 新增一个本地分支(可选项)
git checkout -B latest k0.8.8
- 下载
ffmpeg（常见错误见下面错误锦集）
./init-ios.sh
- 下载成功后进入
ios文件夹
cd ios
三、编译 fffmpeg
./compile-ffmpeg.sh clean
./compile-ffmpeg.sh clean 执行成功
./compile-ffmpeg.sh all
编译过程中可能会出现 error2
./compile-ffmpeg.sh a执行成功
四、打包framework
- 打开
ios/IJKMediaPlayer并运行 -
调整target
-
调整运行模式
- 分别编译模拟器和真机
编译成功之后command + ,前往xcode设置页 Lications Derived Data IJKMediaPlayer-xxx Build Products
cd 到 Products文件夹下合并真机和模拟器的framework
执行命令： lipo -create 真机framework路径 模拟器framework路径 -output 合并的文件路径
lipo -create Release-iphoneos/IJKMediaFramework.framework/IJKMediaFramework Release-iphonesimulator/IJKMediaFramework.framework/IJKMediaFramework -output IJKMediaFramework
执行成功后Products文件夹下会生成 IJKMediaFramework
五、集成framework
错误锦集
error1
Cloning into 'ios/ffmpeg-x86_64'...
fatal: unable to access 'https://github.com/Bilibili/FFmpeg.git/': LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443
tools/pull-repo-ref.sh: line 11: cd: ios/ffmpeg-x86_64: No such file or directory
./init-ios.sh: line 64: cd: ios/ffmpeg-x86_64: No such file or directory
Cloning into 'ios/ffmpeg-i386'...
fatal: unable to access 'https://github.com/Bilibili/FFmpeg.git/': LibreSSL SSL_connect: SSL_ERROR_SYSCALL in connection to github.com:443
tools/pull-repo-ref.sh: line 11: cd: ios/ffmpeg-i386: No such file or directory
./init-ios.sh: line 64: cd: ios/ffmpeg-i386: No such file or directory
这个问题是无法链接Bilibili服务器，搞了大半天，最后还是用手机热点才下载成功！建议切换网络多试几次
error2
AS libavcodec/arm/aacpsdsp_neon.o
CC libavcodec/arm/blockdsp_init_arm.o
./libavutil/arm/asm.S:50:9: error: unknown directive
.arch armv7-a
^
make: *** [libavcodec/arm/aacpsdsp_neon.o] Error 1
make: *** Waiting for unfinished jobs....
clang: warning: optimization flag '-fomit-frame-pointer' is not supported for target 'armv7' [-Wignored-optimization-argument]
最新的 Xcode 已经弱化了对 32 位的支持, 解决方法:
在 compile-ffmpeg.sh 中删除 armv7 ,
修改前后对如下
修改1.png
修改2.png
修改3.png
修改之后，再重新执行出现错误的命令: ./compile-ffmpeg.sh all
error 3
The linked library 'libavcodec.a' is missing one or more architectures required by this target: armv7.
xcode12之后 编译真机的时候会出现该错误
解决思路是在Target Build Settings Excluded Architectures中添加以下代码，添加之后重新编译一次
EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_simulator__NATIVE_ARCH_64_BIT_x86_64=arm64 arm64e armv7 armv7s armv6 armv8 EXCLUDED_ARCHS=$(inherited) $(EXCLUDED_ARCHS__EFFECTIVE_PLATFORM_SUFFIX_$(EFFECTIVE_PLATFORM_SUFFIX)__NATIVE_ARCH_64_BIT_$(NATIVE_ARCH_64_BIT))
error4
执行合并framework时可能会报错
Release-iphoneos/IJKMediaFramework.framework/IJKMediaFramework and Release-iphonesimulator/IJKMediaFramework.framework/IJKMediaFramework have the same architectures (arm64) and can't be in the same fat output file
解决方案
设置 Build Setting Excluded Architectures Debug 添加上 arm64
设置 Build Setting Excluded Architectures Release 添加上 arm64
出现的原因是XCode12 编译的模拟器库新增支持架构arm64。将模拟器的arm64给排除出去即可。