Consume FFmpeg XCFramework from Objective-C, headers not found

user_253456 0
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I built FFmpeg for Apple's platforms as an XCFramework. I used the script in https://github.com/kewlbear/FFmpeg-iOS-build-script/pull/147 to do so.

I'm trying to now consume that framework inside a traditional iOS/macOS framework (named VideoEditing), that then is used inside my iOS app (soon to try and be Catalyst).

In VideoEditing I have linked to FFmpeg.xcframework and then in the app that uses VideoEditing I have linked & embedded FFmpeg.xcframework. Previously I was building FFmpeg as a standard static library, and using that from inside VideoEditing in a Objective-C++ wrapper so I can use it all from Swift.

In that Objective-C++ file I would import FFmpeg headers like #import <libswscale/swscale.h> To make that work, I had to set header search paths. How are you supposed to do it once you convert to the XCFramework? I've tried @import FFmpeg, #import <FFmpeg/libswscale/swscale.h>, #import <FFmpeg/swscale.h> as well as #import <libswscale/swscale.h>. In every case I just get a file not found error on the import line.

All of Apple's examples are showing it just in Swift with the framework vending a module. If I was to try and still set a header search path, you now have different headers per architecture.

Overview of contents of XCFramework

xcframework linker-errors ffmpeg xcode objective-c
2 Answers

Try @import FFmpeg and also set Enable Modules (C and Objective C) to YES from build settings. Make sure that Link Frameworks Automatically is set to YES

user_20952140

You need to put header files parallel to xcframework and set header search path to that header file. xcframework is just like a single .a file, Xcode will not search headers inside xcframework.

user_41377980
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