Getting build error

[vishalknishad]

> $ ./android.sh --disable-arm-v7a-neon --disable-arm64-v8a --disable-x86 --disable-x86-64


Building ffmpeg-kit library for Android

Architectures: arm-v7a
Libraries: none

Downloading sources: ok

Building arm-v7a platform on API level 24

cpu-features: ok

ffmpeg: ok

ffmpeg-kit: failed


> $ tail build.log 
[armeabi-v7a] Compile arm    : ffmpegkit <= ffprobekit.c
[armeabi-v7a] Compile arm    : ffmpegkit <= ffmpegkit_exception.c
[armeabi-v7a] Compile arm    : ffmpegkit <= fftools_cmdutils.c
[armeabi-v7a] Compile arm    : ffmpegkit <= fftools_ffmpeg.c
jni/../ffmpeg-kit-android-lib/src/main/cpp/fftools_ffmpeg.c:507:32: error: suggest braces around initialization of subobject [-Werror,-Wmissing-braces]
    struct sigaction action = {0};
                               ^
                               {}
1 error generated.
make: *** [/home/vishal/Android/Sdk/ndk/21.3.6528147/build/core/build-binary.mk:476: obj/local/armeabi-v7a/objs/ffmpegkit/fftools_ffmpeg.o] Error 1

@tanersener while compiling your library I'm getting above error. How to solve this issue?

OS - linux
ndk version - 21.3.6528147

[tanersener]

I don't know why you have this error. Can you try using NDK version 21.4 or 22? These are the versions that were used to test the scripts.

[juha-h]

I got the same error. I'm using /opt/Android/ndk/21.1.6352462 that comes bundled by latest stable Android Studio. It works with --disable-arm-v7a, but fails with --disable-arm64-v8a.

I don't need ffmpegkit. Is there a way to stop after

ffmpeg: ok

so that ffmpeg-kit: failed would not appear?

[juha-h]

I was able to skip ffmpeg-kit by setting environment var

SKIP_ffmpeg_kit=1

[vishalknishad]

quick hack:

In file android/ffmpeg-kit-android-lib/src/main/cpp/fftools_ffmpeg.c, line 493 & 506

Replace __linux__ with __linux1__

recompile

@tanersener a better solution would be passing -Wmissing-braces flag to the compiler.

[tanersener]

I got the same error. I'm using /opt/Android/ndk/21.1.6352462 that comes bundled by latest stable Android Studio. It works with --disable-arm-v7a, but fails with --disable-arm64-v8a.

My suggestion is to use the newer NDK versions, the ones that we tested. I don't guarantee that you won't get an error on older versions. And by the way, you can upgrade the NDK from Android Studio. Android Studio allows you to do that.

so that ffmpeg-kit: failed would not appear?

You can use --skip-ffmpeg-kit option.

@tanersener a better solution would be passing -Wmissing-braces flag to the compiler.

As far as I remember, the flag that breaks the build in this issue is added automatically by ndk-build. It is not easy to update those flags.

[dnovikov]

Switch from NDK 21.3.6528147 to 22.0.7026061 fixed this for me.

[github-actions]

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