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https://github.com/obsproject/obs-studio.git
synced 2026-05-16 20:37:24 -04:00
47 lines
1.3 KiB
CMake
47 lines
1.3 KiB
CMake
cmake_minimum_required(VERSION 3.28...3.30)
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option(ENABLE_V4L2 "Build OBS with v4l2 support" ON)
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option(ENABLE_UDEV "Build linux-v4l2 with UDEV support" ON)
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if(NOT ENABLE_V4L2)
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target_disable(linux-v4l2)
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return()
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endif()
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find_package(Libv4l2 REQUIRED)
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find_package(FFmpeg REQUIRED COMPONENTS avcodec avutil avformat)
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if(OS_FREEBSD OR OS_OPENBSD)
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set(CMAKE_REQUIRED_INCLUDES "/usr/local/include")
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endif()
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include(CheckCSourceCompiles)
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set(V4L_TEST_SOURCE "#include<linux/videodev2.h>\nint main(){return 0;}")
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check_c_source_compiles("${V4L_TEST_SOURCE}" HAVE_VIDEODEV2_HEADER)
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if(NOT HAVE_VIDEODEV2_HEADER)
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message(FATAL_ERROR "Required system header <linux/videodev2.h> not found.")
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endif()
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add_library(linux-v4l2 MODULE)
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add_library(OBS::v4l2 ALIAS linux-v4l2)
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target_sources(
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linux-v4l2
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PRIVATE linux-v4l2.c v4l2-controls.c v4l2-decoder.c v4l2-helpers.c v4l2-input.c v4l2-output.c
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)
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target_link_libraries(
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linux-v4l2
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PRIVATE OBS::libobs Libv4l2::Libv4l2 FFmpeg::avcodec FFmpeg::avformat FFmpeg::avutil
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)
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if(ENABLE_UDEV)
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find_package(Libudev REQUIRED)
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target_sources(linux-v4l2 PRIVATE v4l2-udev.c)
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target_link_libraries(linux-v4l2 PRIVATE Libudev::Libudev)
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target_compile_definitions(linux-v4l2 PRIVATE HAVE_UDEV)
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endif()
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set_target_properties_obs(linux-v4l2 PROPERTIES FOLDER plugins PREFIX "")
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