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cdb240f3d4
[REUSE] is a specification that aims at making file copyright
information consistent, so that it can be both human and machine
readable. It basically requires that all files have a header containing
copyright and licensing information. When this isn't possible, like
when dealing with binary assets, generated files or embedded third-party
dependencies, it is permitted to insert copyright information in the
`.reuse/dep5` file.
Oh, and it also requires that all the licenses used in the project are
present in the `LICENSES` folder, that's why the diff is so huge.
This can be done automatically with `reuse download --all`.
The `reuse` tool also contains a handy subcommand that analyzes the
project and tells whether or not the project is (still) compliant,
`reuse lint`.
Following REUSE has a few advantages over the current approach:
- Copyright information is easy to access for users / downstream
- Files like `dist/license.md` do not need to exist anymore, as
`.reuse/dep5` is used instead
- `reuse lint` makes it easy to ensure that copyright information of
files like binary assets / images is always accurate and up to date
To add copyright information of files that didn't have it I looked up
who committed what and when, for each file. As yuzu contributors do not
have to sign a CLA or similar I couldn't assume that copyright ownership
was of the "yuzu Emulator Project", so I used the name and/or email of
the commit author instead.
[REUSE]: https://reuse.software
Follow-up to 01cf05bc75
187 lines
5.4 KiB
CMake
187 lines
5.4 KiB
CMake
# SPDX-FileCopyrightText: 2019 Citra Emulator Project
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# SPDX-License-Identifier: GPL-2.0-or-later
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# FindFFmpeg
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# ----------
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#
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# Find the native FFmpeg includes and libraries
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#
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# This module defines the following variables:
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#
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# FFmpeg_INCLUDE_<component>: where to find <component>.h
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# FFmpeg_LIBRARY_<component>: where to find the <component> library
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# FFmpeg_INCLUDE_DIR: aggregate all the include paths
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# FFmpeg_LIBRARIES: aggregate all the paths to the libraries
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# FFmpeg_FOUND: True if all components have been found
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#
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# This module defines the following targets, which are prefered over variables:
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#
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# FFmpeg::<component>: Target to use <component> directly, with include path,
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# library and dependencies set up. If you are using a static build, you are
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# responsible for adding any external dependencies (such as zlib, bzlib...).
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#
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# <component> can be one of:
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# avcodec
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# avdevice
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# avfilter
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# avformat
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# avutil
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# postproc
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# swresample
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# swscale
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#
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set(_FFmpeg_ALL_COMPONENTS
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avcodec
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avdevice
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avfilter
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avformat
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avutil
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postproc
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swresample
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swscale
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)
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set(_FFmpeg_DEPS_avcodec avutil)
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set(_FFmpeg_DEPS_avdevice avcodec avformat avutil)
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set(_FFmpeg_DEPS_avfilter avutil)
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set(_FFmpeg_DEPS_avformat avcodec avutil)
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set(_FFmpeg_DEPS_postproc avutil)
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set(_FFmpeg_DEPS_swresample avutil)
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set(_FFmpeg_DEPS_swscale avutil)
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function(find_ffmpeg LIBNAME)
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if(DEFINED ENV{FFMPEG_DIR})
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set(FFMPEG_DIR $ENV{FFMPEG_DIR})
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endif()
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if(FFMPEG_DIR)
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list(APPEND INCLUDE_PATHS
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${FFMPEG_DIR}
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${FFMPEG_DIR}/ffmpeg
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${FFMPEG_DIR}/lib${LIBNAME}
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${FFMPEG_DIR}/include/lib${LIBNAME}
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${FFMPEG_DIR}/include/ffmpeg
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${FFMPEG_DIR}/include
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NO_DEFAULT_PATH
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NO_CMAKE_FIND_ROOT_PATH
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)
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list(APPEND LIB_PATHS
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${FFMPEG_DIR}
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${FFMPEG_DIR}/lib
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${FFMPEG_DIR}/lib${LIBNAME}
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NO_DEFAULT_PATH
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NO_CMAKE_FIND_ROOT_PATH
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)
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else()
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list(APPEND INCLUDE_PATHS
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/usr/local/include/ffmpeg
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/usr/local/include/lib${LIBNAME}
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/usr/include/ffmpeg
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/usr/include/lib${LIBNAME}
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/usr/include/ffmpeg/lib${LIBNAME}
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)
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list(APPEND LIB_PATHS
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/usr/local/lib
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/usr/lib
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)
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endif()
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find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h
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HINTS ${INCLUDE_PATHS}
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)
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find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME}
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HINTS ${LIB_PATHS}
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)
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if(NOT FFMPEG_DIR AND (NOT FFmpeg_LIBRARY_${LIBNAME} OR NOT FFmpeg_INCLUDE_${LIBNAME}))
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# Didn't find it in the usual paths, try pkg-config
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find_package(PkgConfig QUIET)
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pkg_check_modules(FFmpeg_PKGCONFIG_${LIBNAME} QUIET lib${LIBNAME})
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find_path(FFmpeg_INCLUDE_${LIBNAME} lib${LIBNAME}/${LIBNAME}.h
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${FFmpeg_PKGCONFIG_${LIBNAME}_INCLUDE_DIRS}
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)
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find_library(FFmpeg_LIBRARY_${LIBNAME} ${LIBNAME}
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${FFmpeg_PKGCONFIG_${LIBNAME}_LIBRARY_DIRS}
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)
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endif()
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if(FFmpeg_INCLUDE_${LIBNAME} AND FFmpeg_LIBRARY_${LIBNAME})
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set(FFmpeg_INCLUDE_${LIBNAME} "${FFmpeg_INCLUDE_${LIBNAME}}" PARENT_SCOPE)
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set(FFmpeg_LIBRARY_${LIBNAME} "${FFmpeg_LIBRARY_${LIBNAME}}" PARENT_SCOPE)
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# Extract FFmpeg version from version.h
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foreach(v MAJOR MINOR MICRO)
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set(FFmpeg_${LIBNAME}_VERSION_${v} 0)
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endforeach()
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string(TOUPPER ${LIBNAME} LIBNAME_UPPER)
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file(STRINGS "${FFmpeg_INCLUDE_${LIBNAME}}/lib${LIBNAME}/version.h" _FFmpeg_VERSION_H_CONTENTS REGEX "#define LIB${LIBNAME_UPPER}_VERSION_(MAJOR|MINOR|MICRO) ")
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set(_FFmpeg_VERSION_REGEX "([0-9]+)")
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foreach(v MAJOR MINOR MICRO)
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if("${_FFmpeg_VERSION_H_CONTENTS}" MATCHES "#define LIB${LIBNAME_UPPER}_VERSION_${v}[\\t ]+${_FFmpeg_VERSION_REGEX}")
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set(FFmpeg_${LIBNAME}_VERSION_${v} "${CMAKE_MATCH_1}")
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endif()
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endforeach()
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set(FFmpeg_${LIBNAME}_VERSION "${FFmpeg_${LIBNAME}_VERSION_MAJOR}.${FFmpeg_${LIBNAME}_VERSION_MINOR}.${FFmpeg_${LIBNAME}_VERSION_MICRO}")
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set(FFmpeg_${c}_VERSION "${FFmpeg_${LIBNAME}_VERSION}" PARENT_SCOPE)
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unset(_FFmpeg_VERSION_REGEX)
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unset(_FFmpeg_VERSION_H_CONTENTS)
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set(FFmpeg_${c}_FOUND TRUE PARENT_SCOPE)
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if(NOT FFmpeg_FIND_QUIETLY)
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message("-- Found ${LIBNAME}: ${FFmpeg_INCLUDE_${LIBNAME}} ${FFmpeg_LIBRARY_${LIBNAME}} (version: ${FFmpeg_${LIBNAME}_VERSION})")
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endif()
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endif()
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endfunction()
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foreach(c ${_FFmpeg_ALL_COMPONENTS})
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find_ffmpeg(${c})
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endforeach()
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foreach(c ${_FFmpeg_ALL_COMPONENTS})
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if(FFmpeg_${c}_FOUND)
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list(APPEND FFmpeg_INCLUDE_DIR ${FFmpeg_INCLUDE_${c}})
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list(APPEND FFmpeg_LIBRARIES ${FFmpeg_LIBRARY_${c}})
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add_library(FFmpeg::${c} IMPORTED UNKNOWN)
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set_target_properties(FFmpeg::${c} PROPERTIES
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IMPORTED_LOCATION ${FFmpeg_LIBRARY_${c}}
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INTERFACE_INCLUDE_DIRECTORIES ${FFmpeg_INCLUDE_${c}}
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)
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if(_FFmpeg_DEPS_${c})
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set(deps)
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foreach(dep ${_FFmpeg_DEPS_${c}})
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list(APPEND deps FFmpeg::${dep})
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endforeach()
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set_target_properties(FFmpeg::${c} PROPERTIES
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INTERFACE_LINK_LIBRARIES "${deps}"
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)
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unset(deps)
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endif()
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endif()
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endforeach()
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if(FFmpeg_INCLUDE_DIR)
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list(REMOVE_DUPLICATES FFmpeg_INCLUDE_DIR)
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endif()
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foreach(c ${FFmpeg_FIND_COMPONENTS})
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list(APPEND _FFmpeg_REQUIRED_VARS FFmpeg_INCLUDE_${c} FFmpeg_LIBRARY_${c})
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endforeach()
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include(FindPackageHandleStandardArgs)
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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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)
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foreach(c ${_FFmpeg_ALL_COMPONENTS})
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unset(_FFmpeg_DEPS_${c})
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endforeach()
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unset(_FFmpeg_ALL_COMPONENTS)
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unset(_FFmpeg_REQUIRED_VARS)
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