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obs-studio/libobs/CMakeLists.txt
jp9000 0538865553 libobs: Add encoded output delay support 
This feature allows a user to delay an output (as long as the output
itself supports it).  Needless to say this intended for live streams,
where users may want to delay their streams to prevent stream sniping,
cheating, and other such things.

The design this time was a bit more elaborate, but still simple in
design:  the user can now schedule stops/starts without having to wait
for the stream itself to stop before being able to take any action.
Optionally, they can also forcibly stop stream (and delay) in case
something happens which they might not want to be streamed.

Additionally, a new option was added to preserve stream cutoff point on
disconnections/reconnections, so that if you get disconnected while
streaming, when it reconnects, it will reconnect right at the point
where it left off.  This will probably be quite useful for a number of
applications in addition to regular delay, such as setting the delay to
1 second and then using this feature to minimize, for example, a
critical stream such as a tournament stream from getting any of its
stream data cut off.  However, using this feature will of course cause
the stream data to buffer and increase delay (and memory usage) while
it's in the process of reconnecting.
2015-09-10 12:13:37 -07:00

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project(libobs)
find_package(Threads REQUIRED)
find_package(FFmpeg REQUIRED
COMPONENTS avformat avutil swscale swresample
OPTIONAL_COMPONENTS avcodec)
include_directories(${FFMPEG_INCLUDE_DIRS})
list(REMOVE_ITEM FFMPEG_LIBRARIES ${FFMPEG_AVCODEC_LIBRARIES})
find_package(ImageMagick QUIET COMPONENTS MagickCore)
if(NOT ImageMagick_MagickCore_FOUND AND NOT FFMPEG_AVCODEC_FOUND)
message(FATAL_ERROR "Either MagickCore or Libavcodec is required, but both were not found")
endif()
option(LIBOBS_PREFER_IMAGEMAGICK "Prefer ImageMagick over ffmpeg for image loading" OFF)
if(NOT FFMPEG_AVCODEC_FOUND OR (ImageMagick_MagickCore_FOUND AND LIBOBS_PREFER_IMAGEMAGICK))
message(STATUS "Using ImageMagick for image loading in libobs")
set(libobs_image_loading_SOURCES
graphics/graphics-magick.c)
set(libobs_image_loading_LIBRARIES
${ImageMagick_LIBRARIES})
include_directories(${ImageMagick_INCLUDE_DIRS})
else()
message(STATUS "Using libavcodec for image loading in libobs")
set(libobs_image_loading_SOURCES
graphics/graphics-ffmpeg.c)
set(libobs_image_loading_LIBRARIES
${FFMPEG_AVCODEC_LIBRARIES})
endif()
find_package(ZLIB REQUIRED)
include_directories(SYSTEM ${ZLIB_INCLUDE_DIR})
add_definitions(-DLIBOBS_EXPORTS)
include_directories(${OBS_JANSSON_INCLUDE_DIRS})
if(WIN32)
set(libobs_PLATFORM_SOURCES
obs-win-crash-handler.c
obs-windows.c
util/threading-windows.c
util/pipe-windows.c
util/platform-windows.c)
set(libobs_PLATFORM_DEPS winmm)
if(MSVC)
set(libobs_PLATFORM_DEPS
${libobs_PLATFORM_DEPS}
w32-pthreads)
endif()
elseif(APPLE)
set(libobs_PLATFORM_SOURCES
obs-cocoa.c
util/threading-posix.c
util/pipe-posix.c
util/platform-nix.c
util/platform-cocoa.m)
set(libobs_PLATFORM_HEADERS
util/windows/win-version.h
util/windows/ComPtr.hpp
util/windows/CoTaskMemPtr.hpp
util/windows/HRError.hpp
util/windows/WinHandle.hpp)
set_source_files_properties(${libobs_PLATFORM_SOURCES}
PROPERTIES
LANGUAGE C
COMPILE_FLAGS "-fobjc-arc")
find_library(COCOA Cocoa)
mark_as_advanced(COCOA)
include_directories(${COCOA})
find_library(APPKIT AppKit)
mark_as_advanced(APPKIT)
include_directories(${APPKIT})
find_library(IOKIT IOKit)
mark_as_advanced(IOKIT)
include_directories(${IOKIT})
find_library(CARBON Carbon)
mark_as_advanced(CARBON)
include_directories(${CARBON})
set(libobs_PLATFORM_DEPS
${COCOA}
${APPKIT}
${IOKIT}
${CARBON})
elseif(UNIX)
set(libobs_PLATFORM_SOURCES
obs-nix.c
util/threading-posix.c
util/pipe-posix.c
util/platform-nix.c)
if(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
# use the sysinfo compatibility library on bsd
find_package(Libsysinfo REQUIRED)
include_directories(${SYSINFO_INCLUDE_DIRS})
set(libobs_PLATFORM_DEPS
${libobs_PLATFORM_DEPS}
${SYSINFO_LIBRARIES})
endif()
endif()
if(MSVC)
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH:NO")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /EHc-")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /EHc-")
endif()
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/obsconfig.h.in"
"${CMAKE_BINARY_DIR}/config/obsconfig.h")
set(libobs_config_HEADERS
"${CMAKE_BINARY_DIR}/config/obsconfig.h"
obs-config.h)
set(libobs_callback_SOURCES
callback/calldata.c
callback/decl.c
callback/signal.c
callback/proc.c)
set(libobs_callback_HEADERS
callback/calldata.h
callback/decl.h
callback/proc.h
callback/signal.h)
set(libobs_graphics_SOURCES
${libobs_image_loading_SOURCES}
graphics/quat.c
graphics/effect-parser.c
graphics/axisang.c
graphics/vec4.c
graphics/vec2.c
graphics/texture-render.c
graphics/bounds.c
graphics/matrix3.c
graphics/matrix4.c
graphics/vec3.c
graphics/graphics.c
graphics/shader-parser.c
graphics/plane.c
graphics/effect.c
graphics/math-extra.c
graphics/graphics-imports.c)
set(libobs_graphics_HEADERS
graphics/plane.h
graphics/quat.h
graphics/input.h
graphics/axisang.h
graphics/shader-parser.h
graphics/effect.h
graphics/math-defs.h
graphics/matrix4.h
graphics/graphics.h
graphics/graphics-internal.h
graphics/device-exports.h
graphics/vec2.h
graphics/vec4.h
graphics/matrix3.h
graphics/vec3.h
graphics/math-extra.h
graphics/bounds.h
graphics/effect-parser.h)
set(libobs_mediaio_SOURCES
media-io/video-io.c
media-io/video-fourcc.c
media-io/video-matrices.c
media-io/audio-io.c
media-io/video-frame.c
media-io/format-conversion.c
media-io/audio-resampler-ffmpeg.c
media-io/video-scaler-ffmpeg.c
media-io/media-remux.c)
set(libobs_mediaio_HEADERS
media-io/media-io-defs.h
media-io/video-io.h
media-io/audio-io.h
media-io/audio-math.h
media-io/video-frame.h
media-io/format-conversion.h
media-io/audio-resampler.h
media-io/video-scaler.h
media-io/media-remux.h)
set(libobs_util_SOURCES
util/array-serializer.c
util/base.c
util/platform.c
util/cf-lexer.c
util/bmem.c
util/config-file.c
util/lexer.c
util/dstr.c
util/utf8.c
util/text-lookup.c
util/cf-parser.c
util/profiler.c)
set(libobs_util_HEADERS
util/array-serializer.h
util/utf8.h
util/base.h
util/text-lookup.h
util/vc/vc_inttypes.h
util/vc/vc_stdbool.h
util/vc/vc_stdint.h
util/bmem.h
util/c99defs.h
util/cf-parser.h
util/threading.h
util/pipe.h
util/cf-lexer.h
util/darray.h
util/circlebuf.h
util/dstr.h
util/serializer.h
util/config-file.h
util/lexer.h
util/platform.h
util/profiler.h
util/profiler.hpp)
set(libobs_libobs_SOURCES
${libobs_PLATFORM_SOURCES}
obs-audio-controls.c
obs-avc.c
obs-encoder.c
obs-service.c
obs-source.c
obs-output.c
obs-output-delay.c
obs.c
obs-properties.c
obs-data.c
obs-hotkey.c
obs-hotkey-name-map.c
obs-module.c
obs-display.c
obs-view.c
obs-scene.c
obs-video.c)
set(libobs_libobs_HEADERS
${libobs_PLATFORM_HEADERS}
obs-audio-controls.h
obs-defs.h
obs-avc.h
obs-encoder.h
obs-service.h
obs-internal.h
obs.h
obs-ui.h
obs-properties.h
obs-data.h
obs-interaction.h
obs-hotkey.h
obs-hotkeys.h
obs-module.h
obs-scene.h
obs-source.h
obs-output.h
obs-ffmpeg-compat.h
obs.hpp)
set(libobs_SOURCES
${libobs_callback_SOURCES}
${libobs_graphics_SOURCES}
${libobs_mediaio_SOURCES}
${libobs_util_SOURCES}
${libobs_libobs_SOURCES})
set(libobs_HEADERS
${libobs_config_HEADERS}
${libobs_callback_HEADERS}
${libobs_graphics_HEADERS}
${libobs_mediaio_HEADERS}
${libobs_util_HEADERS}
${libobs_libobs_HEADERS})
source_group("callback\\Source Files" FILES ${libobs_callback_SOURCES})
source_group("callback\\Header Files" FILES ${libobs_callback_HEADERS})
source_group("graphics\\Source Files" FILES ${libobs_graphics_SOURCES})
source_group("graphics\\Header Files" FILES ${libobs_graphics_HEADERS})
source_group("libobs\\Source Files" FILES ${libobs_libobs_SOURCES})
source_group("libobs\\Header Files" FILES ${libobs_libobs_HEADERS})
source_group("media-io\\Source Files" FILES ${libobs_mediaio_SOURCES})
source_group("media-io\\Header Files" FILES ${libobs_mediaio_HEADERS})
source_group("util\\Source Files" FILES ${libobs_util_SOURCES})
source_group("util\\Header Files" FILES ${libobs_util_HEADERS})
add_library(libobs SHARED ${libobs_SOURCES} ${libobs_HEADERS})
set_target_properties(libobs PROPERTIES
OUTPUT_NAME obs
VERSION "0"
SOVERSION "0")
target_compile_definitions(libobs
PUBLIC
HAVE_OBSCONFIG_H)
if(NOT MSVC)
target_compile_options(libobs
PUBLIC
-mmmx
-msse
-msse2)
endif()
target_compile_options(libobs
PUBLIC
"${THREADS_DEFINITIONS}")
target_include_directories(libobs
PUBLIC
"$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>"
"$<BUILD_INTERFACE:${CMAKE_BINARY_DIR}/config>"
"$<INSTALL_INTERFACE:${OBS_INCLUDE_DESTINATION}>")
target_link_libraries(libobs
PRIVATE
${libobs_PLATFORM_DEPS}
${libobs_image_loading_LIBRARIES}
${OBS_JANSSON_IMPORT}
${FFMPEG_LIBRARIES}
${ZLIB_LIBRARIES}
PUBLIC
${THREADS_LIBRARIES})
install_obs_core(libobs EXPORT LibObs)
install_obs_data(libobs data libobs)
install_obs_headers(${libobs_HEADERS})
obs_install_additional(libobs)
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