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# 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.
#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)
# old version of ffmpeg put header in $prefix/include/[ffmpeg]
# so try to find header in include directory
FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS ${headername}
HINTS
${FFMPEG_ROOT}/include
$ENV{FFMPEG_DIR}/include
$ENV{OSGDIR}/include
$ENV{OSG_ROOT}/include
PATHS
~/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 Headers"
)
# newer version of ffmpeg put header in $prefix/include/[ffmpeg/]lib${shortname}
# so try to find lib${shortname}/header in include directory
IF(NOT FFMPEG_${varname}_INCLUDE_DIRS)
FIND_PATH(FFMPEG_${varname}_INCLUDE_DIRS lib${shortname}/${headername}
HINTS
${FFMPEG_ROOT}/include
$ENV{FFMPEG_DIR}/include
$ENV{OSGDIR}/include
$ENV{OSG_ROOT}/include
PATHS
~/Library/Frameworks
/Library/Frameworks
/usr/local/include
/usr/include/
/sw/include # Fink
/opt/local/include # DarwinPorts
/opt/csw/include # Blastwave
/opt/include
/usr/freeware/include
PATH_SUFFIXES ffmpeg
DOC "Location of FFMPEG Headers"
)
ENDIF(NOT FFMPEG_${varname}_INCLUDE_DIRS)
FIND_LIBRARY(FFMPEG_${varname}_LIBRARIES
NAMES ${shortname}
HINTS
${FFMPEG_ROOT}/lib
$ENV{FFMPEG_DIR}/lib
$ENV{OSGDIR}/lib
$ENV{OSG_ROOT}/lib
PATHS
~/Library/Frameworks
/Library/Frameworks
/usr/local/lib
/usr/local/lib64
/usr/lib
/usr/lib64
/sw/lib
/opt/local/lib
/opt/csw/lib
/opt/lib
/usr/freeware/lib64
DOC "Location of FFMPEG Libraries"
)
IF (FFMPEG_${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")
FFMPEG_FIND(LIBAVFORMAT avformat avformat.h)
FFMPEG_FIND(LIBAVDEVICE avdevice avdevice.h)
FFMPEG_FIND(LIBAVCODEC avcodec avcodec.h)
FFMPEG_FIND(LIBAVUTIL avutil avutil.h)
FFMPEG_FIND(LIBSWSCALE swscale swscale.h) # not sure about the header to look for here.
SET(FFMPEG_FOUND "NO")
# Note we don't check FFMPEG_LIBSWSCALE_FOUND here, it's optional.
IF (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
SET(FFMPEG_FOUND "YES")
SET(FFMPEG_INCLUDE_DIRS ${FFMPEG_LIBAVFORMAT_INCLUDE_DIRS})
SET(FFMPEG_LIBRARY_DIRS ${FFMPEG_LIBAVFORMAT_LIBRARY_DIRS})
# Note we don't add FFMPEG_LIBSWSCALE_LIBRARIES here, it will be added if found later.
SET(FFMPEG_LIBRARIES
${FFMPEG_LIBAVFORMAT_LIBRARIES}
${FFMPEG_LIBAVDEVICE_LIBRARIES}
${FFMPEG_LIBAVCODEC_LIBRARIES}
${FFMPEG_LIBAVUTIL_LIBRARIES})
ELSE (FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
# MESSAGE(STATUS "Could not find FFMPEG")
ENDIF(FFMPEG_LIBAVFORMAT_FOUND AND FFMPEG_LIBAVDEVICE_FOUND AND FFMPEG_LIBAVCODEC_FOUND AND FFMPEG_LIBAVUTIL_FOUND)
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