mirror of
https://invent.kde.org/multimedia/kdenlive
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3574336aa0
Fixes any leftover typos. Includes some source changes. Found via: `codespell -S "*.po,*.svg,*.pgm,*.appdata.xml,*.knsrc,*.kdenlive.xml,*.notifyrc,./po,./src/lib/external/kiss_fft,./src/dialogs/speechdialog.cpp" -L abitrate,abl,acount,afile,aline,atleast,anid,buildin,build-in,filterin,filesnames,indx,inout,nd,nin,originaly,parth,reenable,renabled,re-use,re-used,re-using,seh,shotcut,splitted,wheight`
241 lines
8.0 KiB
CMake
241 lines
8.0 KiB
CMake
# SPDX-FileCopyrightText: 2006 Matthias Kretz <kretz@kde.org>
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# SPDX-FileCopyrightText: 2008 Alexander Neundorf <neundorf@kde.org>
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# SPDX-FileCopyrightText: 2011 Michael Jansen <kde@michael-jansen.biz>
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# SPDX-FileCopyrightText: 2021 Stefan Brüns <stefan.bruens@rwth-aachen.de>
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#
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# SPDX-License-Identifier: BSD-3-Clause
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#[=======================================================================[.rst:
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FindFFmpeg
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----------
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Try to find FFmpeg components.
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The following components are available::
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AVCODEC AVFILTER AVDEVICE AVFORMAT
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AVUTIL SWRESAMPLE SWSCALE POSTPROCESS
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If no components are specified in the find_module call, the following ones
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will be chosen as default::
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AVFORMAT AVUTIL AVCODEC
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Imported Targets
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^^^^^^^^^^^^^^^^
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This module provides the following imported targets, if found:
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``FFmpeg::FFmpeg``
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For each <component> that was found
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``FFmpeg::<component>``
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For each <component> that was found
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Result Variables
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^^^^^^^^^^^^^^^^
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This will define the following variables:
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``FFMPEG_FOUND``
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System has the all required components.
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``FFMPEG_INCLUDE_DIRS``
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Include directory necessary for using the required components headers.
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``FFMPEG_LIBRARIES``
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Link these to use the required ffmpeg components.
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``FFMPEG_DEFINITIONS``
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Compiler switches required for using the required ffmpeg components.
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Additionally for each of the components, the following variables will be defined
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``<component>_FOUND``
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True if (the requestion version of) <component> is available
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``<component>_INCLUDE_DIRS``
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Include directory necessary for using the <component> headers
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``<component>_LIBRARIES``
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Link these to use <component>
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``<component>_DEFINITIONS``
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Compiler switches required for using <component>
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``<component>_VERSION``
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The components version
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As the versions of the various FFmpeg components differ for a given release,
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and CMake supports only one common version for all components, use the
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following to specify required versions for multiple components:
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.. code-block:: cmake
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find_package(FFmpeg 57.48 COMPONENTS AVCODEC)
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find_package(FFmpeg 57.40 COMPONENTS AVFORMAT)
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find_package(FFmpeg 55.27 COMPONENTS AVUTIL)
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Since 6.18.0.
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#]=======================================================================]
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include(FindPackageHandleStandardArgs)
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if (NOT FFmpeg_FIND_COMPONENTS)
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# The default components were taken from a survey over other FindFFMPEG.cmake files
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set(FFmpeg_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL)
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endif ()
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list(LENGTH FFmpeg_FIND_COMPONENTS _numComponents)
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if ((${_numComponents} GREATER 1) AND DEFINED ${FFmpeg_FIND_VERSION})
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message(WARNING "Using a required version in combination with multiple COMPONENTS is not supported")
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set(_FFmpeg_REQUIRED_VERSION 0)
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elseif (DEFINED FFmpeg_FIND_VERSION)
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set(_FFmpeg_REQUIRED_VERSION ${FFmpeg_FIND_VERSION})
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else ()
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set(_FFmpeg_REQUIRED_VERSION 0)
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endif ()
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set(_FFmpeg_ALL_COMPONENTS AVCODEC AVFILTER AVDEVICE AVFORMAT AVUTIL POSTPROCESS SWRESAMPLE SWSCALE)
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### Macro: set_component_found
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#
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# Marks the given component as found if both *_LIBRARIES AND *_INCLUDE_DIRS is present.
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macro(set_component_found _component )
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if (${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS)
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set(${_component}_FOUND TRUE)
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set(FFmpeg_${_component}_FOUND TRUE)
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endif ()
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endmacro()
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macro(create_target _component )
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if(${_component}_FOUND AND NOT TARGET FFmpeg::${_component})
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add_library(FFmpeg::${_component} UNKNOWN IMPORTED)
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set_target_properties(FFmpeg::${_component} PROPERTIES
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IMPORTED_LOCATION "${${_component}_LIBRARIES}"
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INTERFACE_COMPILE_OPTIONS "${${_component}_DEFINITIONS}"
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INTERFACE_INCLUDE_DIRECTORIES "${${_component}_INCLUDE_DIRS}"
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)
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endif()
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endmacro()
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### Macro: find_component
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#
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# Checks for the given component by invoking pkgconfig and then looking up the libraries and
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# include directories.
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macro(find_component _component _pkgconfig _library _header)
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if (NOT WIN32)
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# use pkg-config to get the directories and then use these values
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# in the FIND_PATH() and FIND_LIBRARY() calls
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find_package(PkgConfig)
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if (PKG_CONFIG_FOUND)
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pkg_check_modules(PC_${_component} QUIET ${_pkgconfig})
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endif ()
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endif (NOT WIN32)
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find_path(${_component}_INCLUDE_DIRS ${_header}
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HINTS
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${PC_LIB${_component}_INCLUDEDIR}
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${PC_LIB${_component}_INCLUDE_DIRS}
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PATH_SUFFIXES
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ffmpeg
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)
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find_library(${_component}_LIBRARIES NAMES ${_library}
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HINTS
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${PC_LIB${_component}_LIBDIR}
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${PC_LIB${_component}_LIBRARY_DIRS}
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)
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set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.")
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set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.")
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set_component_found(${_component})
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create_target(${_component})
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mark_as_advanced(
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${_component}_INCLUDE_DIRS
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${_component}_LIBRARIES
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${_component}_DEFINITIONS
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${_component}_VERSION)
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endmacro()
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# Check for cached results. If there are skip the costly part.
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if (NOT FFMPEG_LIBRARIES)
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# Check for all possible component.
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find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h)
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find_component(AVFILTER libavfilter avfilter libavfilter/avfilter.h)
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find_component(AVFORMAT libavformat avformat libavformat/avformat.h)
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find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h)
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find_component(AVUTIL libavutil avutil libavutil/avutil.h)
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find_component(SWRESAMPLE libswresample swresample libswresample/swresample.h)
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find_component(SWSCALE libswscale swscale libswscale/swscale.h)
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find_component(POSTPROCESS libpostproc postproc libpostproc/postprocess.h)
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# Check if the required components were found and add their stuff to the FFMPEG_* vars.
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foreach (_component ${_FFmpeg_ALL_COMPONENTS})
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if (${_component}_FOUND)
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set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${_component}_LIBRARIES})
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set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${_component}_DEFINITIONS})
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list(APPEND FFMPEG_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS})
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endif ()
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endforeach ()
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# Build the include path with duplicates removed.
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if (FFMPEG_INCLUDE_DIRS)
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list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS)
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endif ()
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# cache the vars.
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set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFmpeg include directories." FORCE)
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set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFmpeg libraries." FORCE)
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set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFmpeg cflags." FORCE)
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mark_as_advanced(FFMPEG_INCLUDE_DIRS
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FFMPEG_LIBRARIES
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FFMPEG_DEFINITIONS)
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else ()
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# Set the noncached _FOUND vars for the components.
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foreach (_component ${_FFmpeg_ALL_COMPONENTS})
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set_component_found(${_component})
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create_target(${_component})
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endforeach ()
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endif ()
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# Compile the list of required vars
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unset(_FFmpeg_REQUIRED_VARS)
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set(_FFmpeg_FOUND_LIBRARIES "")
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foreach (_component ${FFmpeg_FIND_COMPONENTS})
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if (${_component}_FOUND)
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if (${_component}_VERSION VERSION_LESS _FFmpeg_REQUIRED_VERSION)
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message(STATUS "${_component}: ${${_component}_VERSION} < ${_FFmpeg_REQUIRED_VERSION}")
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unset(${_component}_FOUND)
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endif ()
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list(APPEND _FFmpeg_FOUND_LIBRARIES ${${_component}_LIBRARIES})
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endif ()
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list(APPEND _FFmpeg_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS ${_component}_FOUND)
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endforeach ()
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list(INSERT _FFmpeg_REQUIRED_VARS 0 _FFmpeg_FOUND_LIBRARIES)
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# Give a nice error message if some of the required vars are missing.
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find_package_handle_standard_args(FFmpeg
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REQUIRED_VARS ${_FFmpeg_REQUIRED_VARS}
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HANDLE_COMPONENTS)
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# Create the general target
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if(FFmpeg_FOUND AND NOT TARGET FFmpeg::FFmpeg)
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add_library(FFmpeg::FFmpeg INTERFACE IMPORTED)
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foreach(_component ${FFmpeg_FIND_COMPONENTS})
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if(${_component}_FOUND AND TARGET FFmpeg::${_component})
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target_link_libraries(FFmpeg::FFmpeg INTERFACE FFmpeg::${_component})
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endif()
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endforeach()
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endif()
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