ES-DE/CMake/Packages/FindFFmpeg.cmake
2021-05-10 21:58:14 +02:00

109 lines
3.5 KiB
CMake

# Locate ffmpeg
# This module defines
# FFMPEG_LIBRARIES
# FFMPEG_FOUND, if false, do not try to link to ffmpeg
# FFMPEG_INCLUDE_DIR, where to find the headers
#
# $FFMPEG_DIR is an environment variable that would
# correspond to the ./configure --prefix=$FFMPEG_DIR
#
# Created by Robert Osfield.
# Modified by Lukas Lalinsky.
# In ffmpeg code, old version use "#include <header.h>" and newer use "#include <libname/header.h>"
# In OSG ffmpeg plugin, we use "#include <header.h>" for compatibility with old version of ffmpeg
# We have to search the path which contain the header.h (usefull for old version)
# and search the path which contain the libname/header.h (usefull for new version)
# Then we need to include ${FFMPEG_libname_INCLUDE_DIRS}
# (in old version case, use by ffmpeg header and osg plugin code)
# (in new version case, use by ffmpeg header)
# and ${FFMPEG_libname_INCLUDE_DIRS/libname}
# (in new version case, use by osg plugin code)
# Macro to find header and lib directories
# example: FFMPEG_FIND(AVFORMAT avformat avformat.h)
MACRO(FFMPEG_FIND varname shortname headername)
FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS lib${shortname}/${headername}
PATHS
${FFMPEG_ROOT}/include
$ENV{FFMPEG_DIR}/include
~/Library/Frameworks
/Library/Frameworks
/usr/local/include
/usr/include/
/sw/include # Fink
/opt/local/include # DarwinPorts
/opt/csw/include # Blastwave
/opt/include
/usr/freeware/include
NO_DEFAULT_PATH
PATH_SUFFIXES ffmpeg
DOC "Location of FFMPEG Headers"
)
FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS lib${shortname}/${headername}
PATH_SUFFIXES ffmpeg
DOC "Location of FFMPEG Headers"
)
pkg_check_modules(FFMPEG_${varname} lib${shortname})
IF (FFMPEG_${varname}_LIBRARIES AND FFMPEG_${varname}_INCLUDE_DIRS)
SET(FFMPEG_${varname}_FOUND 1)
ENDIF(FFMPEG_${varname}_LIBRARIES AND FFMPEG_${varname}_INCLUDE_DIRS)
ENDMACRO(FFMPEG_FIND)
SET(FFMPEG_ROOT "$ENV{FFMPEG_DIR}" CACHE PATH "Location of FFMPEG")
# find stdint.h
FIND_PATH(FFMPEG_STDINT_INCLUDE_DIR stdint.h
PATHS
${FFMPEG_ROOT}/include
$ENV{FFMPEG_DIR}/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 "Location of FFMPEG stdint.h Header"
)
FFMPEG_FIND(LIBAVFORMAT avformat avformat.h)
FFMPEG_FIND(LIBAVDEVICE avdevice avdevice.h)
FFMPEG_FIND(LIBAVCODEC avcodec avcodec.h)
FFMPEG_FIND(LIBAVCODEC_FFT avcodec avfft.h)
FFMPEG_FIND(LIBAVUTIL avutil avutil.h)
FFMPEG_FIND(LIBSWRESAMPLE swresample swresample.h)
FFMPEG_FIND(LIBSWSCALE swscale swscale.h) # Not sure about the header to look for here.
SET(FFMPEG_FOUND "NO")
IF (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND
FFMPEG_LIBAVUTIL_FOUND AND FFMPEG_LIBSWRESAMPLE_FOUND AND FFMPEG_LIBSWSCALE_FOUND AND
FFMPEG_STDINT_INCLUDE_DIR)
SET(FFMPEG_FOUND "YES")
SET(FFMPEG_INCLUDE_DIRS ${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
SET(FFMPEG_LIBRARY_DIRS ${FFMPEG_LIBAVFORMAT_LIBRARY_DIRS})
SET(FFMPEG_LIBRARIES
${FFMPEG_LIBAVFORMAT_LIBRARIES}
${FFMPEG_LIBAVDEVICE_LIBRARIES}
${FFMPEG_LIBAVCODEC_LIBRARIES}
${FFMPEG_LIBAVUTIL_LIBRARIES}
${FFMPEG_LIBSWRESAMPLE_LIBRARIES}
${FFMPEG_LIBSWSCALE_LIBRARIES})
ELSE ()
# MESSAGE(STATUS "Could not find FFMPEG")
ENDIF()