127 lines
4.5 KiB
CMake
127 lines
4.5 KiB
CMake
# Locate ffmpeg
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# This module defines
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# FFMPEG_LIBRARIES
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# FFMPEG_FOUND, if false, do not try to link to ffmpeg
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# FFMPEG_INCLUDE_DIR, where to find the headers
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#
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# $FFMPEG_DIR is an environment variable that would
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# correspond to the ./configure --prefix=$FFMPEG_DIR
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#
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# Created by Robert Osfield.
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#In ffmpeg code, old version use "#include <header.h>" and newer use "#include <libname/header.h>"
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#In OSG ffmpeg plugin, we use "#include <header.h>" for compatibility with old version of ffmpeg
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#We have to search the path which contain the header.h (usefull for old version)
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#and search the path which contain the libname/header.h (usefull for new version)
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#Then we need to include ${FFMPEG_libname_INCLUDE_DIRS} (in old version case, use by ffmpeg header and osg plugin code)
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# (in new version case, use by ffmpeg header)
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#and ${FFMPEG_libname_INCLUDE_DIRS/libname} (in new version case, use by osg plugin code)
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# Macro to find header and lib directories
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# example: FFMPEG_FIND(AVFORMAT avformat avformat.h)
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MACRO(FFMPEG_FIND varname shortname headername)
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# old version of ffmpeg put header in $prefix/include/[ffmpeg]
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# so try to find header in include directory
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FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS ${headername}
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PATHS
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${FFMPEG_ROOT}/include
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$ENV{FFMPEG_DIR}/include
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$ENV{OSGDIR}/include
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$ENV{OSG_ROOT}/include
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local/include
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/usr/include
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/sw/include # Fink
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/opt/local/include # DarwinPorts
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/opt/csw/include # Blastwave
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/opt/include
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/usr/freeware/include
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PATH_SUFFIXES ffmpeg
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DOC "Location of FFMPEG Headers"
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)
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# newer version of ffmpeg put header in $prefix/include/[ffmpeg/]lib${shortname}
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# so try to find lib${shortname}/header in include directory
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IF(NOT FFMPEG_${varname}_INCLUDE_DIRS)
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FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS lib${shortname}/${headername}
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${FFMPEG_ROOT}/include
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$ENV{FFMPEG_DIR}/include
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$ENV{OSGDIR}/include
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$ENV{OSG_ROOT}/include
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local/include
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/usr/include/
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/sw/include # Fink
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/opt/local/include # DarwinPorts
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/opt/csw/include # Blastwave
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/opt/include
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/usr/freeware/include
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PATH_SUFFIXES ffmpeg
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DOC "Location of FFMPEG Headers"
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)
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ENDIF(NOT FFMPEG_${varname}_INCLUDE_DIRS)
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FIND_LIBRARY(FFMPEG_${varname}_LIBRARIES
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NAMES ${shortname}
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PATHS
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${FFMPEG_ROOT}/lib
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$ENV{FFMPEG_DIR}/lib
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$ENV{OSGDIR}/lib
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$ENV{OSG_ROOT}/lib
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~/Library/Frameworks
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/Library/Frameworks
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/usr/local/lib
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/usr/local/lib64
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/usr/lib
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/usr/lib64
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/sw/lib
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/opt/local/lib
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/opt/csw/lib
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/opt/lib
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/usr/freeware/lib64
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DOC "Location of FFMPEG Libraries"
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)
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IF (FFMPEG_${varname}_LIBRARIES AND FFMPEG_${varname}_INCLUDE_DIRS)
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SET(FFMPEG_${varname}_FOUND 1)
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ENDIF(FFMPEG_${varname}_LIBRARIES AND FFMPEG_${varname}_INCLUDE_DIRS)
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ENDMACRO(FFMPEG_FIND)
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SET(FFMPEG_ROOT "$ENV{FFMPEG_DIR}" CACHE PATH "Location of FFMPEG")
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FFMPEG_FIND(LIBAVFORMAT avformat avformat.h)
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FFMPEG_FIND(LIBAVDEVICE avdevice avdevice.h)
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FFMPEG_FIND(LIBAVCODEC avcodec avcodec.h)
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FFMPEG_FIND(LIBAVUTIL avutil avutil.h)
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FFMPEG_FIND(LIBSWSCALE swscale swscale.h) # not sure about the header to look for here.
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SET(FFMPEG_FOUND "NO")
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# Note we don't check FFMPEG_LIBSWSCALE_FOUND here, it's optional.
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IF (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
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SET(FFMPEG_FOUND "YES")
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SET(FFMPEG_INCLUDE_DIRS ${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
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SET(FFMPEG_LIBRARY_DIRS ${FFMPEG_LIBAVFORMAT_LIBRARY_DIRS})
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# Note we don't add FFMPEG_LIBSWSCALE_LIBRARIES here, it will be added if found later.
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SET(FFMPEG_LIBRARIES
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${FFMPEG_LIBAVFORMAT_LIBRARIES}
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${FFMPEG_LIBAVDEVICE_LIBRARIES}
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${FFMPEG_LIBAVCODEC_LIBRARIES}
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${FFMPEG_LIBAVUTIL_LIBRARIES})
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ELSE (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
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# MESSAGE(STATUS "Could not find FFMPEG")
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ENDIF(FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
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