[iOS] How to include ass.framework?

[JulienDev]

Describe the bug I want to be able to display subtitles on iOS but I cannot make it work. I followed the readme documentation, and tried to include libass framework but unfortunately I didn't succeed.

For example, I tried to:

• Just copy the ass.framework folder into xcode project -> Nothing is happening
• Added ass.framework to the target with no embedding -> Got this crash

dyld[1093]: Library not loaded: @rpath/Ass.framework/Ass Referenced from: /private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Runner.debug.dylib Reason: tried: '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Ass.framework/Ass' (no such file), '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Ass.framework/Ass' (no such file), '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/6C96FD15-F54E-41AD-841D-84D353C4F4BC/Runner.app/Frameworks/Ass.framework/Ass' (no such file) Message from debugger: killed

• Renamed ass.framework to Ass.framework -> Not working
• Added ass.framework to the target with embedding -> Can't build due to this error Multiple commands produce '/Users/julien/Library/Developer/Xcode/DerivedData/Runner-djikgrsclqaypsfkeehwwdcbprkp/Build/Products/Debug-iphoneos/Runner.app/Frameworks/Ass.framework' Target 'Runner' (project 'Runner') has copy command from '/Users/julien/projects/iptv-expert/expert/ios/Ass.framework' to '/Users/julien/Library/Developer/Xcode/DerivedData/Runner-djikgrsclqaypsfkeehwwdcbprkp/Build/Products/Debug-iphoneos/Runner.app/Frameworks/Ass.framework' That command depends on command in Target 'Runner' (project 'Runner'): script phase “[CP] Embed Pods Frameworks”

I'm not sure what I'm doing wrong. Could you please provide a guide on how to make it work on iOS? Or could you integrate it in the example app? Btw, what's the reason for not including libass directly in the iOS lib?

Thanks for your support!

[wang-bin]

I don't know why it's looking for Ass.framework, it should be ass.framework. Can you enable the log and show me complete log?

[JulienDev]

This is the only log I get, as it's crashing just before the app is launched on the device

[wang-bin]

did you enable the log following the issue template? if no ass.framework, it should not crash, just no subtitle rendered. debugging in lldb or xcode is also required for crash.

[JulienDev]

Let me add some details:

• When I just add ass.framework to the Runner files, the video is playing without subtitles.

flutter: mdk.FINE: 11:15:56.315: Failed to load libass runtime
flutter: mdk.FINE: 11:15:56.315: symbol not found: ass_library_init

Full Logs: https://pastebin.com/zbLD8Tfp.

• Now I do the same but set embed to Embed without signing or Embed & Sign:

When the app is launchign, the app is crashing instantly. There is no dart log printed in the console.

dyld[1969]: Library not loaded: @rpath/Ass.framework/Ass Referenced from: /private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Runner.debug.dylib Reason: tried: '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Ass.framework/Ass' (no such file), '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Ass.framework/Ass' (no such file), '/usr/lib/swift/Ass.framework/Ass' (no such file, not in dyld cache), '/private/preboot/Cryptexes/OS/usr/lib/swift/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file), '/private/var/containers/Bundle/Application/9A0F882A-350D-4874-8233-549723759051/Runner.app/Frameworks/Ass.framework/Ass' (no such file)