Struggling to compile with Make command

[tdobson]

Can you figure out what might be going wrong here?

tdobson@tragicomix:~/dev/mycode/obs-v4l2sink/build$ cat /etc/debian_version 9.12

Thanks so much for building this - really eager to start using it.

tdobson@tragicomix:~/dev/mycode$ git clone --recursive https://github.com/obsproject/obs-studio.git Cloning into 'obs-studio'... remote: Enumerating objects: 2, done. remote: Counting objects: 100% (2/2), done. remote: Compressing objects: 100% (2/2), done. remote: Total 58454 (delta 0), reused 1 (delta 0), pack-reused 58452 Receiving objects: 100% (58454/58454), 33.55 MiB | 2.51 MiB/s, done. Resolving deltas: 100% (39180/39180), done. Submodule 'plugins/enc-amf' (https://github.com/obsproject/obs-amd-encoder.git) registered for path 'plugins/enc-amf' Submodule 'plugins/mac-syphon/syphon-framework' (https://github.com/palana/Syphon-Framework.git) registered for path 'plugins/mac-syphon/syphon-framework' Submodule 'plugins/obs-browser' (https://github.com/obsproject/obs-browser.git) registered for path 'plugins/obs-browser' Submodule 'plugins/obs-outputs/ftl-sdk' (https://github.com/Mixer/ftl-sdk.git) registered for path 'plugins/obs-outputs/ftl-sdk' Submodule 'plugins/obs-vst' (https://github.com/obsproject/obs-vst.git) registered for path 'plugins/obs-vst' Submodule 'plugins/win-dshow/libdshowcapture' (https://github.com/obsproject/libdshowcapture.git) registered for path 'plugins/win-dshow/libdshowcapture' Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/enc-amf'... remote: Enumerating objects: 5, done.
remote: Counting objects: 100% (5/5), done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 8067 (delta 1), reused 2 (delta 0), pack-reused 8062
Receiving objects: 100% (8067/8067), 14.42 MiB | 2.43 MiB/s, done. Resolving deltas: 100% (5649/5649), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/mac-syphon/syphon-framework'... remote: Enumerating objects: 453, done.
remote: Total 453 (delta 0), reused 0 (delta 0), pack-reused 453
Receiving objects: 100% (453/453), 393.37 KiB | 0 bytes/s, done. Resolving deltas: 100% (306/306), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/obs-browser'... remote: Enumerating objects: 12, done.
remote: Counting objects: 100% (12/12), done.
remote: Compressing objects: 100% (8/8), done.
remote: Total 2063 (delta 4), reused 10 (delta 4), pack-reused 2051
Receiving objects: 100% (2063/2063), 626.66 KiB | 865.00 KiB/s, done. Resolving deltas: 100% (1403/1403), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/obs-outputs/ftl-sdk'... remote: Enumerating objects: 32, done.
remote: Counting objects: 100% (32/32), done.
remote: Compressing objects: 100% (29/29), done.
remote: Total 2720 (delta 2), reused 23 (delta 2), pack-reused 2688
Receiving objects: 100% (2720/2720), 922.84 KiB | 1.50 MiB/s, done. Resolving deltas: 100% (1918/1918), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/obs-vst'... remote: Enumerating objects: 18, done.
remote: Counting objects: 100% (18/18), done.
remote: Compressing objects: 100% (18/18), done.
remote: Total 593 (delta 6), reused 5 (delta 0), pack-reused 575
Receiving objects: 100% (593/593), 603.34 KiB | 0 bytes/s, done. Resolving deltas: 100% (341/341), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/win-dshow/libdshowcapture'... remote: Enumerating objects: 28, done.
remote: Counting objects: 100% (28/28), done. remote: Compressing objects: 100% (23/23), done.
remote: Total 771 (delta 14), reused 13 (delta 5), pack-reused 743
Receiving objects: 100% (771/771), 251.70 KiB | 0 bytes/s, done. Resolving deltas: 100% (531/531), done. Submodule path 'plugins/enc-amf': checked out '7e78d6f0910563995954afc5484971348376a616' Submodule path 'plugins/mac-syphon/syphon-framework': checked out '01b144811f6f7080b70b2d7cc729da071f86f9d7' Submodule path 'plugins/obs-browser': checked out 'bbe1b347234281678c880a06e5da99edc7596062' Submodule path 'plugins/obs-outputs/ftl-sdk': checked out 'd0c8469f66806b5ea738d607f7d2b000af8b1129' Submodule 'libcurl' (https://github.com/curl/curl) registered for path 'plugins/obs-outputs/ftl-sdk/libcurl' Submodule 'libjansson' (https://github.com/akheron/jansson) registered for path 'plugins/obs-outputs/ftl-sdk/libjansson' Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/obs-outputs/ftl-sdk/libcurl'... remote: Enumerating objects: 26, done.
remote: Counting objects: 100% (26/26), done.
remote: Compressing objects: 100% (18/18), done.
remote: Total 149584 (delta 10), reused 20 (delta 8), pack-reused 149558
Receiving objects: 100% (149584/149584), 65.19 MiB | 2.39 MiB/s, done. Resolving deltas: 100% (116664/116664), done. Cloning into '/home/tdobson/dev/mycode/obs-studio/plugins/obs-outputs/ftl-sdk/libjansson'... remote: Enumerating objects: 5, done.
remote: Counting objects: 100% (5/5), done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 6304 (delta 0), reused 1 (delta 0), pack-reused 6299
Receiving objects: 100% (6304/6304), 1.63 MiB | 1.65 MiB/s, done. Resolving deltas: 100% (3769/3769), done. Submodule path 'plugins/obs-outputs/ftl-sdk/libcurl': checked out '44b9b4d4f56d6f6de92c89636994c03984e9cd01' Submodule path 'plugins/obs-outputs/ftl-sdk/libjansson': checked out 'bc5741fb1ac730ead24e9bd08977fc6c248e04b0' Submodule path 'plugins/obs-vst': checked out 'baa41568e04275d5314848e691de85919cb03127' Submodule path 'plugins/win-dshow/libdshowcapture': checked out '03fbb3814b2ad678f5be4b23b8ca05fb4172e12e' tdobson@tragicomix:~/dev/mycode$ git clone https://github.com/CatxFish/obs-v4l2sink.git Cloning into 'obs-v4l2sink'... remote: Enumerating objects: 94, done. remote: Total 94 (delta 0), reused 0 (delta 0), pack-reused 94 Unpacking objects: 100% (94/94), done. tdobson@tragicomix:~/dev/mycode$ git clone --recursive https://github.com/obsproject/obs-studio.git fatal: destination path 'obs-studio' already exists and is not an empty directory. tdobson@tragicomix:~/dev/mycode$ cd obs- obs-studio/ obs-v4l2sink/ tdobson@tragicomix:~/dev/mycode$ cd obs-v4l2sink/ tdobson@tragicomix:~/dev/mycode/obs-v4l2sink$ mkdir build && cd build tdobson@tragicomix:~/dev/mycode/obs-v4l2sink/build$ cmake -DLIBOBS_INCLUDE_DIR="../../obs-studio/libobs" -DCMAKE_INSTALL_PREFIX=/usr .. -- The C compiler identification is GNU 6.3.0 -- The CXX compiler identification is GNU 6.3.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- Found Libobs: /usr/lib/x86_64-linux-gnu/libobs.so
-- Configuring done -- Generating done -- Build files have been written to: /home/tdobson/dev/mycode/obs-v4l2sink/build tdobson@tragicomix:~/dev/mycode/obs-v4l2sink/build$ make -j4 Scanning dependencies of target v4l2sink_automoc [ 20%] Automatic moc and uic for target v4l2sink Generating moc source v4l2sink_automoc.dir/moc_v4l2sinkproper_YTMLMCB5ULRRJS.cpp Generating moc compilation v4l2sink_automoc.cpp Generating ui header ui_v4l2sinkproperties.h [ 20%] Built target v4l2sink_automoc Scanning dependencies of target v4l2sink [ 40%] Building CXX object CMakeFiles/v4l2sink.dir/v4l2sink_automoc.cpp.o [ 60%] Building CXX object CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o [ 80%] Building CXX object CMakeFiles/v4l2sink.dir/src/v4l2sinkproperties.cpp.o /home/tdobson/dev/mycode/obs-v4l2sink/src/v4l2sink.cpp: In function ‘bool obs_module_load()’: /home/tdobson/dev/mycode/obs-v4l2sink/src/v4l2sink.cpp:336:35: error: ‘obs_module_get_string’ was not declared in this scope obs_frontend_push_ui_translation(obs_module_get_string); ^~~~~ CMakeFiles/v4l2sink.dir/build.make:62: recipe for target 'CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o' failed make[2]: [CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o] Error 1 make[2]: Waiting for unfinished jobs.... CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/v4l2sink.dir/all' failed make[1]: [CMakeFiles/v4l2sink.dir/all] Error 2 Makefile:127: recipe for target 'all' failed make: [all] Error 2 tdobson@tragicomix:~/dev/mycode/obs-v4l2sink/build$ make -j4 [ 20%] Automatic moc and uic for target v4l2sink [ 20%] Built target v4l2sink_automoc [ 40%] Building CXX object CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o /home/tdobson/dev/mycode/obs-v4l2sink/src/v4l2sink.cpp: In function ‘bool obs_module_load()’: /home/tdobson/dev/mycode/obs-v4l2sink/src/v4l2sink.cpp:336:35: error: ‘obs_module_get_string’ was not declared in this scope obs_frontend_push_ui_translation(obs_module_get_string); ^~~~~ CMakeFiles/v4l2sink.dir/build.make:62: recipe for target 'CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o' failed make[2]: [CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o] Error 1 CMakeFiles/Makefile2:67: recipe for target 'CMakeFiles/v4l2sink.dir/all' failed make[1]: [CMakeFiles/v4l2sink.dir/all] Error 2 Makefile:127: recipe for target 'all' failed make: *** [all] Error 2

[srstsavage]

@tdobson This is probably not the answer you're looking for, but I had nothing but pain trying to build this in Debian 9. After upgrading to Debian 10 the build worked fine. And I should mention that I was running into this exact error, with the missing obs_module_get_string.

[tdobson]

@shane-axiom This is a very helpful answer that I appreciate is fantastically helpful. You know - it might not be ideal, but it might that I just spin up a vm for it.

Thanks very much - I will see where I get to!

[tdobson]

hmmmm - so far no luck

root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# cat /etc/debian_version 10.3

root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# cmake -DLIBOBS_INCLUDE_DIR="../../obs-studio/libobs" -DCMAKE_INSTALL_PREFIX=/usr .. -- Could NOT find Libobs (missing: LIBOBS_LIB) CMake Error at external/FindLibObs.cmake:106 (message): Could not find the libobs library Call Stack (most recent call first): CMakeLists.txt:5 (include)

[tdobson]

Fixed it!

Step 1)

Use Debian 10

Step 2)

Install libobs-dev with apt

Step 3

follow instructions to the letter

See solution below:

root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# cmake -DLIBOBS_INCLUDE_DIR="../../obs-studio/libobs" -DCMAKE_INSTALL_PREFIX=/usr .. -- Could NOT find Libobs (missing: LIBOBS_LIB) CMake Error at external/FindLibObs.cmake:106 (message): Could not find the libobs library Call Stack (most recent call first): CMakeLists.txt:5 (include)

-- Configuring incomplete, errors occurred! See also "/home/admin/obs-v4l2sink/build/CMakeFiles/CMakeOutput.log". root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# sudo apt-get install libobs0 Reading package lists... Done Building dependency tree
Reading state information... Done libobs0 is already the newest version (22.0.3+dfsg1-1). libobs0 set to manually installed. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# sudo apt-get install libobs-dev Reading package lists... Done Building dependency tree
Reading state information... Done The following NEW packages will be installed: libobs-dev 0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded. Need to get 86.1 kB of archives. After this operation, 581 kB of additional disk space will be used. Get:1 http://cdn-aws.deb.debian.org/debian buster/main amd64 libobs-dev amd64 22.0.3+dfsg1-1 [86.1 kB] Fetched 86.1 kB in 0s (245 kB/s)
Selecting previously unselected package libobs-dev. (Reading database ... 115926 files and directories currently installed.) Preparing to unpack .../libobs-dev_22.0.3+dfsg1-1_amd64.deb ... Unpacking libobs-dev (22.0.3+dfsg1-1) ... Setting up libobs-dev (22.0.3+dfsg1-1) ... root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# cmake -DLIBOBS_INCLUDE_DIR="../../obs-studio/libobs" -DCMAKE_INSTALL_PREFIX=/usr .. -- Found Libobs: /usr/lib/x86_64-linux-gnu/libobs.so
-- Configuring done -- Generating done -- Build files have been written to: /home/admin/obs-v4l2sink/build root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build# make -j4 Scanning dependencies of target v4l2sink_autogen [ 20%] Automatic MOC and UIC for target v4l2sink [ 20%] Built target v4l2sink_autogen Scanning dependencies of target v4l2sink [ 80%] Building CXX object CMakeFiles/v4l2sink.dir/src/v4l2sinkproperties.cpp.o [ 80%] Building CXX object CMakeFiles/v4l2sink.dir/src/v4l2sink.cpp.o [ 80%] Building CXX object CMakeFiles/v4l2sink.dir/v4l2sink_autogen/mocs_compilation.cpp.o /home/admin/obs-v4l2sink/src/v4l2sink.cpp: In function ‘bool v4l2device_close(void*)’: /home/admin/obs-v4l2sink/src/v4l2sink.cpp:217:1: warning: no return statement in function returning non-void [-Wreturn-type] } ^ [100%] Linking CXX shared module v4l2sink.so [100%] Built target v4l2sink root@ip-172-31-2-216:/home/admin/obs-v4l2sink/build#

[tdobson]

I also needed to do this: https://github.com/CatxFish/obs-v4l2sink/issues/14