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Build own FFMPEG

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This commit is contained in:
Florian Märkl 2019-08-18 13:59:09 +02:00
commit 8fd2610941
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GPG key ID: 125BC8A5A6A1E857
4 changed files with 74 additions and 34 deletions
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85
cmake/FindFFMPEG.cmake
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@ -29,7 +29,19 @@ Note that only components requested with `COMPONENTS` or `OPTIONAL_COMPONENTS`
are guaranteed to set these variables or provide targets.
#]==]
find_package(PkgConfig)
function (_ffmpeg_find component headername)
# Try pkg-config first
if(PKG_CONFIG_FOUND)
pkg_check_modules(FFMPEG_${component} lib${component} IMPORTED_TARGET)
if(FFMPEG_${component}_FOUND)
set_target_properties(PkgConfig::FFMPEG_${component} PROPERTIES IMPORTED_GLOBAL TRUE)
add_library(FFMPEG::${component} ALIAS PkgConfig::FFMPEG_${component})
return()
endif()
endif()
find_path("FFMPEG_${component}_INCLUDE_DIR"
NAMES
"lib${component}/${headername}"
@ -130,33 +142,39 @@ function (_ffmpeg_find component headername)
endif ()
endfunction ()
unset(_pkg_config_extra_arg)
_ffmpeg_find(avutil avutil.h)
_ffmpeg_find(avresample avresample.h
avutil)
#_ffmpeg_find(avresample avresample.h
# avutil)
_ffmpeg_find(swresample swresample.h
avutil)
_ffmpeg_find(swscale swscale.h
avutil)
_ffmpeg_find(avcodec avcodec.h
avutil)
_ffmpeg_find(avformat avformat.h
avcodec avutil)
_ffmpeg_find(avfilter avfilter.h
avutil)
_ffmpeg_find(avdevice avdevice.h
avformat avutil)
#_ffmpeg_find(avformat avformat.h
# avcodec avutil)
#_ffmpeg_find(avfilter avfilter.h
# avutil)
#_ffmpeg_find(avdevice avdevice.h
# avformat avutil)
if (TARGET FFMPEG::avutil)
set(_ffmpeg_version_header_path "${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)
if(TARGET PkgConfig::FFMPEG_avutil)
set(FFMPEG_VERSION ${FFMPEG_avutil_VERSION})
else()
set(_ffmpeg_version_header_path "${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 "${_ffmpeg_version}")
unset(_ffmpeg_version)
else ()
set(FFMPEG_VERSION FFMPEG_VERSION-NOTFOUND)
endif ()
unset(_ffmpeg_version_header_path)
endif()
endif ()
set(FFMPEG_INCLUDE_DIRS)
@ -164,18 +182,25 @@ set(FFMPEG_LIBRARIES)
set(_ffmpeg_required_vars)
foreach (_ffmpeg_component IN LISTS FFMPEG_FIND_COMPONENTS)
if (TARGET "FFMPEG::${_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_${_ffmpeg_component})
if(TARGET PkgConfig::FFMPEG_${_ffmpeg_component})
list(APPEND FFMPEG_INCLUDE_DIRS ${FFMPEG_${_ffmpeg_component}_INCLUDE_DIRS})
list(APPEND FFMPEG_LIBRARIES ${FFMPEG_${_ffmpeg_component}_LIBRARIES})
list(APPEND _ffmpeg_required_vars
"FFMPEG_${_ffmpeg_required_vars}_INCLUDE_DIRS"
"FFMPEG_${_ffmpeg_required_vars}_LIBRARIES")
"FFMPEG_${_ffmpeg_component}_LIBRARIES")
else()
set(FFMPEG_${_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_${_ffmpeg_component}_INCLUDE_DIRS"
"FFMPEG_${_ffmpeg_component}_LIBRARIES")
endif()
endif ()
endif ()
endforeach ()
@ -187,7 +212,7 @@ endif ()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(FFMPEG
REQUIRED_VARS FFMPEG_INCLUDE_DIRS FFMPEG_LIBRARIES ${_ffmpeg_required_vars}
REQUIRED_VARS ${_ffmpeg_required_vars}
VERSION_VAR FFMPEG_VERSION
HANDLE_COMPONENTS)
unset(_ffmpeg_required_vars)