Question / Help Can't build OBS (using custom FFmpeg build).

[Midnightas]

Here are the commands I used:

git clone --recursive https://github.com/obsproject/obs-studio.git
cd obs-studio/
mkdir build32
cd build32
cmake -DUNIX_STRUCTURE=1 -DCMAKE_INSTALL_PREFIX=/usr ..
make -j4

But make -j4 seems to fail around here:

[  6%] Linking C executable obs-ffmpeg-mux
[  6%] Built target media-playback
[  6%] Built target glad
[  6%] Built target jansson
/usr/local/lib/../lib/libavcodec.so: error adding symbols: File in wrong format
collect2: error: ld returned 1 exit status
plugins/obs-ffmpeg/ffmpeg-mux/CMakeFiles/obs-ffmpeg-mux.dir/build.make:97: recipe for target 'plugins/obs-ffmpeg/ffmpeg-mux/obs-ffmpeg-mux' failed
make[2]: *** [plugins/obs-ffmpeg/ffmpeg-mux/obs-ffmpeg-mux] Error 1
CMakeFiles/Makefile2:1107: recipe for target 'plugins/obs-ffmpeg/ffmpeg-mux/CMakeFiles/obs-ffmpeg-mux.dir/all' failed
make[1]: *** [plugins/obs-ffmpeg/ffmpeg-mux/CMakeFiles/obs-ffmpeg-mux.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[  6%] Automatic moc for target obs
[  6%] Automatic moc for target decklink-ouput-ui
[  6%] Automatic moc for target frontend-tools
[  6%] Built target obs_automoc
[  6%] Built target decklink-ouput-ui_automoc
[  6%] Built target frontend-tools_automoc
Makefile:149: recipe for target 'all' failed
make: *** [all] Error 2

Which makes me think I might have built FFmpeg in a way that is incompatible with OBS.
My goal is to get VAAPI to be enabled, as the option doesn't seem to be there, even though vainfo says that it's supported.

 

[Tuna]

Sounds to me that you tried mixing 32-bit and 64-bit. They should be the same architecture.

 

[Midnightas]

Sounds to me that you tried mixing 32-bit and 64-bit. They should be the same architecture.

Can I somehow enforce 64-bitness? I did not specify anything like -m32
anywhere, the fact that the build32 directory is called that is just because of me being lazy to rename things.