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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,196 @@ | ||
| #[==[ | ||
| Provides the following variables: | ||
| * `FFMPEG_INCLUDE_DIRS`: Include directories necessary to use FFMPEG. | ||
| * `FFMPEG_LIBRARIES`: Libraries necessary to use FFMPEG. Note that this only | ||
| includes libraries for the components requested. | ||
| * `FFMPEG_VERSION`: The version of FFMPEG found. | ||
| The following components are supported: | ||
| * `avcodec` | ||
| * `avdevice` | ||
| * `avfilter` | ||
| * `avformat` | ||
| * `avresample` | ||
| * `avutil` | ||
| * `swresample` | ||
| * `swscale` | ||
| For each component, the following are provided: | ||
| * `FFMPEG_<component>_FOUND`: Libraries for the component. | ||
| * `FFMPEG_<component>_INCLUDE_DIRS`: Include directories for | ||
| the component. | ||
| * `FFMPEG_<component>_LIBRARIES`: Libraries for the component. | ||
| * `FFMPEG::<component>`: A target to use with `target_link_libraries`. | ||
| Note that only components requested with `COMPONENTS` or `OPTIONAL_COMPONENTS` | ||
| are guaranteed to set these variables or provide targets. | ||
| #]==] | ||
|
|
||
| function (_ffmpeg_find component headername) | ||
| find_path("FFMPEG_${component}_INCLUDE_DIR" | ||
| NAMES | ||
| "lib${component}/${headername}" | ||
| PATHS | ||
| "${FFMPEG_ROOT}/include" | ||
| ~/Library/Frameworks | ||
| /Library/Frameworks | ||
| /usr/local/include | ||
| /usr/include | ||
| /sw/include # Fink | ||
| /opt/local/include # DarwinPorts | ||
| /opt/csw/include # Blastwave | ||
| /opt/include | ||
| /usr/freeware/include | ||
| PATH_SUFFIXES | ||
| ffmpeg | ||
| DOC "FFMPEG's ${component} include directory") | ||
| mark_as_advanced("FFMPEG_${component}_INCLUDE_DIR") | ||
|
|
||
| # On Windows, static FFMPEG is sometimes built as `lib<name>.a`. | ||
| if (WIN32) | ||
| list(APPEND CMAKE_FIND_LIBRARY_SUFFIXES ".a" ".lib") | ||
| list(APPEND CMAKE_FIND_LIBRARY_PREFIXES "" "lib") | ||
| endif () | ||
|
|
||
| find_library("FFMPEG_${component}_LIBRARY" | ||
| NAMES | ||
| "${component}" | ||
| PATHS | ||
| "${FFMPEG_ROOT}/lib" | ||
| ~/Library/Frameworks | ||
| /Library/Frameworks | ||
| /usr/local/lib | ||
| /usr/local/lib64 | ||
| /usr/lib | ||
| /usr/lib64 | ||
| /sw/lib | ||
| /opt/local/lib | ||
| /opt/csw/lib | ||
| /opt/lib | ||
| /usr/freeware/lib64 | ||
| "${FFMPEG_ROOT}/bin" | ||
| DOC "FFMPEG's ${component} library") | ||
| mark_as_advanced("FFMPEG_${component}_LIBRARY") | ||
|
|
||
| if (FFMPEG_${component}_LIBRARY AND FFMPEG_${component}_INCLUDE_DIR) | ||
| set(_deps_found TRUE) | ||
| set(_deps_link) | ||
| foreach (_ffmpeg_dep IN LISTS ARGN) | ||
| if (TARGET "FFMPEG::${_ffmpeg_dep}") | ||
| list(APPEND _deps_link "FFMPEG::${_ffmpeg_dep}") | ||
| else () | ||
| set(_deps_found FALSE) | ||
| endif () | ||
| endforeach () | ||
| if (_deps_found) | ||
| if (NOT TARGET "FFMPEG::${component}") | ||
| add_library("FFMPEG::${component}" UNKNOWN IMPORTED) | ||
| set_target_properties("FFMPEG::${component}" PROPERTIES | ||
| IMPORTED_LOCATION "${FFMPEG_${component}_LIBRARY}" | ||
| INTERFACE_INCLUDE_DIRECTORIES "${FFMPEG_${component}_INCLUDE_DIR}" | ||
| IMPORTED_LINK_INTERFACE_LIBRARIES "${_deps_link}") | ||
| endif () | ||
| set("FFMPEG_${component}_FOUND" 1 | ||
| PARENT_SCOPE) | ||
|
|
||
| set(version_header_path "${FFMPEG_${component}_INCLUDE_DIR}/lib${component}/version.h") | ||
| if (EXISTS "${version_header_path}") | ||
| string(TOUPPER "${component}" component_upper) | ||
| file(STRINGS "${version_header_path}" version | ||
| REGEX "#define *LIB${component_upper}_VERSION_(MAJOR|MINOR|MICRO) ") | ||
| string(REGEX REPLACE ".*_MAJOR *\([0-9]*\).*" "\\1" major "${version}") | ||
| string(REGEX REPLACE ".*_MINOR *\([0-9]*\).*" "\\1" minor "${version}") | ||
| string(REGEX REPLACE ".*_MICRO *\([0-9]*\).*" "\\1" micro "${version}") | ||
| if (NOT major STREQUAL "" AND | ||
| NOT minor STREQUAL "" AND | ||
| NOT micro STREQUAL "") | ||
| set("FFMPEG_${component}_VERSION" "${major}.${minor}.${micro}" | ||
| PARENT_SCOPE) | ||
| endif () | ||
| endif () | ||
| else () | ||
| set("FFMPEG_${component}_FOUND" 0 | ||
| PARENT_SCOPE) | ||
| set(what) | ||
| if (NOT FFMPEG_${component}_LIBRARY) | ||
| set(what "library") | ||
| endif () | ||
| if (NOT FFMPEG_${component}_INCLUDE_DIR) | ||
| if (what) | ||
| string(APPEND what " or headers") | ||
| else () | ||
| set(what "headers") | ||
| endif () | ||
| endif () | ||
| set("FFMPEG_${component}_NOT_FOUND_MESSAGE" | ||
| "Could not find the ${what} for ${component}." | ||
| PARENT_SCOPE) | ||
| endif () | ||
| endif () | ||
| endfunction () | ||
|
|
||
| _ffmpeg_find(avutil avutil.h) | ||
| _ffmpeg_find(avresample avresample.h | ||
| avutil) | ||
| _ffmpeg_find(swresample swresample.h | ||
| avutil) | ||
| _ffmpeg_find(swscale swscale.h | ||
| avutil) | ||
| _ffmpeg_find(avcodec avcodec.h | ||
| avutil) | ||
| _ffmpeg_find(avformat avformat.h | ||
| avcodec avutil) | ||
| _ffmpeg_find(avfilter avfilter.h | ||
| avutil) | ||
| _ffmpeg_find(avdevice avdevice.h | ||
| avformat avutil) | ||
|
|
||
| if (TARGET FFMPEG::avutil) | ||
| set(_ffmpeg_version_header_path "${FFMPEG_avutil_INCLUDE_DIR}/libavutil/ffversion.h") | ||
| if (EXISTS "${_ffmpeg_version_header_path}") | ||
| file(STRINGS "${_ffmpeg_version_header_path}" _ffmpeg_version | ||
| REGEX "FFMPEG_VERSION") | ||
| string(REGEX REPLACE ".*\"n?\(.*\)\"" "\\1" FFMPEG_VERSION "${_ffmpeg_version}") | ||
| unset(_ffmpeg_version) | ||
| else () | ||
| set(FFMPEG_VERSION FFMPEG_VERSION-NOTFOUND) | ||
| endif () | ||
| unset(_ffmpeg_version_header_path) | ||
| endif () | ||
|
|
||
| set(FFMPEG_INCLUDE_DIRS) | ||
| set(FFMPEG_LIBRARIES) | ||
| set(_ffmpeg_required_vars) | ||
| foreach (_ffmpeg_component IN LISTS FFMPEG_FIND_COMPONENTS) | ||
| if (TARGET "FFMPEG::${_ffmpeg_component}") | ||
| set(FFMPEG_${_ffmpeg_component}_INCLUDE_DIRS | ||
| "${FFMPEG_${_ffmpeg_component}_INCLUDE_DIR}") | ||
| set(FFMPEG_${_ffmpeg_component}_LIBRARIES | ||
| "${FFMPEG_${_ffmpeg_component}_LIBRARY}") | ||
| list(APPEND FFMPEG_INCLUDE_DIRS | ||
| "${FFMPEG_${_ffmpeg_component}_INCLUDE_DIRS}") | ||
| list(APPEND FFMPEG_LIBRARIES | ||
| "${FFMPEG_${_ffmpeg_component}_LIBRARIES}") | ||
| if (FFMEG_FIND_REQUIRED_${_ffmpeg_component}) | ||
| list(APPEND _ffmpeg_required_vars | ||
| "FFMPEG_${_ffmpeg_required_vars}_INCLUDE_DIRS" | ||
| "FFMPEG_${_ffmpeg_required_vars}_LIBRARIES") | ||
| endif () | ||
| endif () | ||
| endforeach () | ||
| unset(_ffmpeg_component) | ||
|
|
||
| if (FFMPEG_INCLUDE_DIRS) | ||
| list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS) | ||
| endif () | ||
|
|
||
| include(FindPackageHandleStandardArgs) | ||
| find_package_handle_standard_args(FFMPEG | ||
| REQUIRED_VARS FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES ${_ffmpeg_required_vars} | ||
| VERSION_VAR FFMPEG_VERSION | ||
| HANDLE_COMPONENTS) | ||
| unset(_ffmpeg_required_vars) | ||
|
|
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