From 2674fa254c72dc755512bc2b6516cc68b195f167 Mon Sep 17 00:00:00 2001 From: Jan Holthuis Date: Sat, 16 Jan 2021 16:01:11 +0100 Subject: CMake: Make the FindFFMPEG interface mirror the vcpkg-shipped one --- cmake/modules/FindFFMPEG.cmake | 166 ++++++++++++++++++++++++++++++++++++ cmake/modules/FindFFmpeg.cmake | 186 ----------------------------------------- 2 files changed, 166 insertions(+), 186 deletions(-) create mode 100644 cmake/modules/FindFFMPEG.cmake delete mode 100644 cmake/modules/FindFFmpeg.cmake (limited to 'cmake') diff --git a/cmake/modules/FindFFMPEG.cmake b/cmake/modules/FindFFMPEG.cmake new file mode 100644 index 0000000000..cd1ebe34c8 --- /dev/null +++ b/cmake/modules/FindFFMPEG.cmake @@ -0,0 +1,166 @@ +#.rst: +# FindFFMPEG +# ---------- +# +# Try to find the required ffmpeg components (default: libavformat, libavutil, libavcodec) +# +# Next variables can be used to hint FFMPEG libs search: +# +# :: +# +# PC__LIBRARY_DIRS +# PC_FFMPEG_LIBRARY_DIRS +# PC__INCLUDE_DIRS +# PC_FFMPEG_INCLUDE_DIRS +# +# Once done this will define +# +# :: +# +# FFMPEG_FOUND - System has the all required components. +# FFMPEG_INCLUDE_DIRS - Include directory necessary for using the required components headers. +# FFMPEG_LIBRARIES - Link these to use the required ffmpeg components. +# FFMPEG_DEFINITIONS - Compiler switches required for using the required ffmpeg components. +# +# For each of the components it will additionally set. +# +# :: +# +# libavcodec +# libavdevice +# libavformat +# libavfilter +# libavutil +# libpostproc +# libswscale +# +# the following variables will be defined +# +# :: +# +# _FOUND - System has +# _INCLUDE_DIRS - Include directory necessary for using the headers +# _LIBRARIES - Link these to use +# _DEFINITIONS - Compiler switches required for using +# _VERSION - The components version +# +# the following import targets is created +# +# :: +# +# FFMPEG::FFMPEG - for all components +# FFMPEG:: - where in lower case (FFMPEG::avcodec) for each components +# +# Copyright (c) 2006, Matthias Kretz, +# Copyright (c) 2008, Alexander Neundorf, +# Copyright (c) 2011, Michael Jansen, +# Copyright (c) 2017, Alexander Drozdov, +# Copyright (c) 2019, Jan Holthuis, +# +# Redistribution and use is allowed according to the terms of the BSD license. +# For details see the accompanying COPYING-CMAKE-SCRIPTS file. + +include(FindPackageHandleStandardArgs) + +# The default components were taken from a survey over other FindFFMPEG.cmake files +if (NOT FFMPEG_FIND_COMPONENTS) + set(FFMPEG_FIND_COMPONENTS libavcodec libavformat libavutil) +endif () + +# +### Macro: find_component +# +# Checks for the given component by invoking pkgconfig and then looking up the libraries and +# include directories. +# +macro(find_component _component _pkgconfig _library _header) + + # use pkg-config to get the directories and then use these values + # in the FIND_PATH() and FIND_LIBRARY() calls + find_package(PkgConfig QUIET) + if (PkgConfig_FOUND) + pkg_check_modules(PC_FFMPEG_${_component} QUIET ${_pkgconfig}) + endif () + + find_path(FFMPEG_${_component}_INCLUDE_DIRS ${_header} + HINTS + ${PC_FFMPEG_${_component}_INCLUDEDIR} + ${PC_FFMPEG_${_component}_INCLUDE_DIRS} + ${PC_FFMPEG_INCLUDE_DIRS} + PATH_SUFFIXES + ffmpeg + ) + + find_library(FFMPEG_${_component}_LIBRARIES NAMES ${PC_FFMPEG_${_component}_LIBRARIES} ${_library} + HINTS + ${PC_FFMPEG_${_component}_LIBDIR} + ${PC_FFMPEG_${_component}_LIBRARY_DIRS} + ${PC_FFMPEG_LIBRARY_DIRS} + ) + + #message(STATUS ${FFMPEG_${_component}_LIBRARIES}) + #message(STATUS ${PC_FFMPEG_${_component}_LIBRARIES}) + + set(FFMPEG_${_component}_DEFINITIONS ${PC_FFMPEG_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.") + set(FFMPEG_${_component}_VERSION ${PC_FFMPEG_${_component}_VERSION} CACHE STRING "The ${_component} version number.") + + if (FFMPEG_${_component}_LIBRARIES AND FFMPEG_${_component}_INCLUDE_DIRS) + # message(STATUS " - ${_component} found.") + set(FFMPEG_${_component}_FOUND TRUE) + else () + # message(STATUS " - ${_component} not found.") + endif () + + mark_as_advanced( + FFMPEG_${_component}_INCLUDE_DIRS + FFMPEG_${_component}_LIBRARIES + FFMPEG_${_component}_DEFINITIONS + FFMPEG_${_component}_VERSION) + +endmacro() + + +# Check for all possible component. +find_component(libavcodec libavcodec avcodec libavcodec/avcodec.h) +find_component(libavformat libavformat avformat libavformat/avformat.h) +find_component(libavdevice libavdevice avdevice libavdevice/avdevice.h) +find_component(libavutil libavutil avutil libavutil/avutil.h) +find_component(libavfilter libavfilter avfilter libavfilter/avfilter.h) +find_component(libswscale libswscale swscale libswscale/swscale.h) +find_component(libpostproc libpostproc postproc libpostproc/postprocess.h) +find_component(libswresample libswresample swresample libswresample/swresample.h) + +set(FFMPEG_LIBRARIES "") +set(FFMPEG_DEFINITIONS "") +# Check if the required components were found and add their stuff to the FFMPEG_* vars. +foreach (_component ${FFMPEG_FIND_COMPONENTS}) + if (FFMPEG_${_component}_FOUND) + #message(STATUS "Required component ${_component} present.") + set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${FFMPEG_${_component}_LIBRARIES}) + set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${FFMPEG_${_component}_DEFINITIONS}) + list(APPEND FFMPEG_INCLUDE_DIRS ${FFMPEG_${_component}_INCLUDE_DIRS}) + endif() +endforeach () + +# Build the include path with duplicates removed. +if (FFMPEG_INCLUDE_DIRS) + list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS) +endif () + +# cache the vars. +set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFMPEG include directories." FORCE) +set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFMPEG libraries." FORCE) +set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFMPEG cflags." FORCE) + +mark_as_advanced(FFMPEG_INCLUDE_DIRS + FFMPEG_LIBRARIES + FFMPEG_DEFINITIONS) + +# Compile the list of required vars +set(_FFMPEG_REQUIRED_VARS FFMPEG_LIBRARIES FFMPEG_INCLUDE_DIRS) +foreach (_component ${FFMPEG_FIND_COMPONENTS}) + list(APPEND _FFMPEG_REQUIRED_VARS FFMPEG_${_component}_LIBRARIES FFMPEG_${_component}_INCLUDE_DIRS) +endforeach () + +# Give a nice error message if some of the required vars are missing. +find_package_handle_standard_args(FFMPEG DEFAULT_MSG ${_FFMPEG_REQUIRED_VARS}) diff --git a/cmake/modules/FindFFmpeg.cmake b/cmake/modules/FindFFmpeg.cmake deleted file mode 100644 index 2126aed73e..0000000000 --- a/cmake/modules/FindFFmpeg.cmake +++ /dev/null @@ -1,186 +0,0 @@ -#.rst: -# FindFFmpeg -# ---------- -# -# Try to find the required ffmpeg components (default: AVFORMAT, AVUTIL, AVCODEC) -# -# Next variables can be used to hint FFmpeg libs search: -# -# :: -# -# PC__LIBRARY_DIRS -# PC_FFMPEG_LIBRARY_DIRS -# PC__INCLUDE_DIRS -# PC_FFMPEG_INCLUDE_DIRS -# -# Once done this will define -# -# :: -# -# FFMPEG_FOUND - System has the all required components. -# FFMPEG_INCLUDE_DIRS - Include directory necessary for using the required components headers. -# FFMPEG_LIBRARIES - Link these to use the required ffmpeg components. -# FFMPEG_DEFINITIONS - Compiler switches required for using the required ffmpeg components. -# -# For each of the components it will additionally set. -# -# :: -# -# AVCODEC -# AVDEVICE -# AVFORMAT -# AVFILTER -# AVUTIL -# POSTPROC -# SWSCALE -# -# the following variables will be defined -# -# :: -# -# _FOUND - System has -# _INCLUDE_DIRS - Include directory necessary for using the headers -# _LIBRARIES - Link these to use -# _DEFINITIONS - Compiler switches required for using -# _VERSION - The components version -# -# the following import targets is created -# -# :: -# -# FFmpeg::FFmpeg - for all components -# FFmpeg:: - where in lower case (FFmpeg::avcodec) for each components -# -# Copyright (c) 2006, Matthias Kretz, -# Copyright (c) 2008, Alexander Neundorf, -# Copyright (c) 2011, Michael Jansen, -# Copyright (c) 2017, Alexander Drozdov, -# Copyright (c) 2019, Jan Holthuis, -# -# Redistribution and use is allowed according to the terms of the BSD license. -# For details see the accompanying COPYING-CMAKE-SCRIPTS file. - -include(FindPackageHandleStandardArgs) - -# The default components were taken from a survey over other FindFFMPEG.cmake files -if (NOT FFmpeg_FIND_COMPONENTS) - set(FFmpeg_FIND_COMPONENTS AVCODEC AVFORMAT AVUTIL) -endif () - -# -### Macro: find_component -# -# Checks for the given component by invoking pkgconfig and then looking up the libraries and -# include directories. -# -macro(find_component _component _pkgconfig _library _header) - - # use pkg-config to get the directories and then use these values - # in the FIND_PATH() and FIND_LIBRARY() calls - find_package(PkgConfig QUIET) - if (PkgConfig_FOUND) - pkg_check_modules(PC_${_component} QUIET ${_pkgconfig}) - endif () - - find_path(${_component}_INCLUDE_DIRS ${_header} - HINTS - ${PC_${_component}_INCLUDEDIR} - ${PC_${_component}_INCLUDE_DIRS} - ${PC_FFMPEG_INCLUDE_DIRS} - PATH_SUFFIXES - ffmpeg - ) - - find_library(${_component}_LIBRARIES NAMES ${PC_${_component}_LIBRARIES} ${_library} - HINTS - ${PC_${_component}_LIBDIR} - ${PC_${_component}_LIBRARY_DIRS} - ${PC_FFMPEG_LIBRARY_DIRS} - ) - - #message(STATUS ${${_component}_LIBRARIES}) - #message(STATUS ${PC_${_component}_LIBRARIES}) - - set(${_component}_DEFINITIONS ${PC_${_component}_CFLAGS_OTHER} CACHE STRING "The ${_component} CFLAGS.") - set(${_component}_VERSION ${PC_${_component}_VERSION} CACHE STRING "The ${_component} version number.") - - if (${_component}_LIBRARIES AND ${_component}_INCLUDE_DIRS) - # message(STATUS " - ${_component} found.") - set(${_component}_FOUND TRUE) - else () - # message(STATUS " - ${_component} not found.") - endif () - - mark_as_advanced( - ${_component}_INCLUDE_DIRS - ${_component}_LIBRARIES - ${_component}_DEFINITIONS - ${_component}_VERSION) - -endmacro() - - -# Check for all possible component. -find_component(AVCODEC libavcodec avcodec libavcodec/avcodec.h) -find_component(AVFORMAT libavformat avformat libavformat/avformat.h) -find_component(AVDEVICE libavdevice avdevice libavdevice/avdevice.h) -find_component(AVUTIL libavutil avutil libavutil/avutil.h) -find_component(AVFILTER libavfilter avfilter libavfilter/avfilter.h) -find_component(SWSCALE libswscale swscale libswscale/swscale.h) -find_component(POSTPROC libpostproc postproc libpostproc/postprocess.h) -find_component(SWRESAMPLE libswresample swresample libswresample/swresample.h) - -set(FFMPEG_LIBRARIES "") -set(FFMPEG_DEFINITIONS "") -# Check if the required components were found and add their stuff to the FFMPEG_* vars. -foreach (_component ${FFmpeg_FIND_COMPONENTS}) - if (${_component}_FOUND) - # message(STATUS "Required component ${_component} present.") - set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} ${${_component}_LIBRARIES}) - set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} ${${_component}_DEFINITIONS}) - list(APPEND FFMPEG_INCLUDE_DIRS ${${_component}_INCLUDE_DIRS}) - - string(TOLOWER ${_component} _lowerComponent) - if (NOT TARGET FFmpeg::${_lowerComponent}) - add_library(FFmpeg::${_lowerComponent} INTERFACE IMPORTED) - set_target_properties(FFmpeg::${_lowerComponent} PROPERTIES - INTERFACE_COMPILE_OPTIONS "${${_component}_DEFINITIONS}" - INTERFACE_INCLUDE_DIRECTORIES ${${_component}_INCLUDE_DIRS} - INTERFACE_LINK_LIBRARIES "${${_component}_LIBRARIES}") - endif() - - else () - # message(STATUS "Required component ${_component} missing.") - endif () -endforeach () - -# Build the include path with duplicates removed. -if (FFMPEG_INCLUDE_DIRS) - list(REMOVE_DUPLICATES FFMPEG_INCLUDE_DIRS) -endif () - -# cache the vars. -set(FFMPEG_INCLUDE_DIRS ${FFMPEG_INCLUDE_DIRS} CACHE STRING "The FFmpeg include directories." FORCE) -set(FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES} CACHE STRING "The FFmpeg libraries." FORCE) -set(FFMPEG_DEFINITIONS ${FFMPEG_DEFINITIONS} CACHE STRING "The FFmpeg cflags." FORCE) - -mark_as_advanced(FFMPEG_INCLUDE_DIRS - FFMPEG_LIBRARIES - FFMPEG_DEFINITIONS) - -if (NOT TARGET FFmpeg::FFmpeg) - add_library(FFmpeg::FFmpeg INTERFACE IMPORTED) - set_target_properties(FFmpeg::FFmpeg PROPERTIES - INTERFACE_COMPILE_OPTIONS "${FFMPEG_DEFINITIONS}" - INTERFACE_INCLUDE_DIRECTORIES "${FFMPEG_INCLUDE_DIRS}" - INTERFACE_LINK_LIBRARIES "${FFMPEG_LIBRARIES}") -endif() - -# Compile the list of required vars -set(_FFmpeg_REQUIRED_VARS FFMPEG_LIBRARIES FFMPEG_INCLUDE_DIRS) -foreach (_component ${FFmpeg_FIND_COMPONENTS}) - list(APPEND _FFmpeg_REQUIRED_VARS ${_component}_LIBRARIES ${_component}_INCLUDE_DIRS) -endforeach () - -# Give a nice error message if some of the required vars are missing. -find_package_handle_standard_args(FFmpeg DEFAULT_MSG ${_FFmpeg_REQUIRED_VARS}) -- cgit v1.2.3