2019-05-28

bilibili/ijkplayer 编译 之路：

问题1:  Solution:iOS "./compile-ffmpeg.sh all" error"xcrun -sdk iphoneos clang is unable to create an execut:

First

1)check your Git version

2)make sure you are using the lastest version from Git

Second

1)find "ffmpeg-armv7/ffbuild/config.log" search the detail error with keyword like "xcrun: error"

2)my case,found the detail "xcrun: error: SDK "iphoneos" cannot be located"

Third

1)terminal input "sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer/"

2)input password

3)try again

问题2： 

When ./compile-ffmpeg.sh all     ,    It will get below error.

CC libavcodec/aac_parser.o

clang: warning: optimization flag '-fomit-frame-pointer' is not supported for target 'armv7' [-Wignored-optimization-argument]

CC libavcodec/aacadtsdec.o

解决方案：

In iOS devices, armv7 means iPhone 4 or iPad 1 and so on, armv7s meas iPhone 5 and so on, all it's 32 bit device. And Apple has required all apps should run on 64 bit.

So I just compiled arm64 and armv7s. The iPhone 4 or iPhone 5 is too old for our apps or Foundation/UIKit API.

If there's any mistake or any better solution, please tell me.

I do same thing like you.

I remove the armv7 in compile-ffmpeg.sh

FF_ALL_ARCHS_IOS8_SDK="arm64 i386 x86_64"

Thanks for your reply.