Added AVCodec to CMake build system

IoLanguage · May 5, 2010 · a2ae481 · a2ae481
1 parent f10d788
commit a2ae481
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diff --git a/addons/AVCodec/CMakeLists.txt b/addons/AVCodec/CMakeLists.txt
@@ -0,0 +1,37 @@
+# Base Io build system
+# Written by Jeremy Tregunna <jeremy.tregunna@me.com>
+#
+# Builds the AVCodec addon
+# XXX: Please note, this is untested as I was only able to get
+# the SWS related code in FFMPEG installed on My Mac OS X 10.6
+# machine, and I can't locate the ffmpeg.h header at all. So,
+# since I don't have it, the addon won't compile. However, this
+# CMakeList should be sufficient given all that information to
+# build the addon if someone has the required headers.
+
+# Find libevent
+find_package(FFMPEG)
+
+# Create the _build bundle hierarchy if needed.
+make_build_bundle(_build)
+
+# Did we find libevent? if so, set up the targets and all the
+# support variables.
+if(FFMPEG_FOUND AND FFMPEG_SWSCALE_FOUND)
+	# Output our dynamic library to the top-level _build hierarchy
+	set(LIBRARY_OUTPUT_PATH ${CMAKE_CURRENT_BINARY_DIR}/_build/dll)
+
+	# Additional include directories
+	include_directories(${FFMPEG_INCLUDE_DIR})
+
+	# Our library sources.
+	file(GLOB SRCS "${CMAKE_CURRENT_SOURCE_DIR}/source/*.c")
+
+	# Now build the shared library
+	add_library(IoAVCodec SHARED ${SRCS})
+	add_dependencies(IoAVCodec iovmall)
+	target_link_libraries(IoAVCodec iovmall ${FFMPEG_LIBRARIES} ${FFMPEG_SWS_LIBRARIES})
+
+	# Install the addon to our global addons hierarchy.
+	install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR} DESTINATION ${CMAKE_INSTALL_PREFIX}/lib/io/addons)
+endif(FFMPEG_FOUND AND FFMPEG_SWSCALE_FOUND)
diff --git a/addons/CMakeLists.txt b/addons/CMakeLists.txt
@@ -16,7 +16,7 @@ include_directories(
 # only exist on the system, but can be built. Addons in a state of
 # flux should be commented out here until such time as they are in
 # a stable state.
-#add_subdirectory(AVCodec)
+add_subdirectory(AVCodec)
 #add_subdirectory(AppleExtras)
 #add_subdirectory(AsyncRequest)
 #add_subdirectory(Beanstalk)

diff --git a/modules/FindFFMPEG.cmake b/modules/FindFFMPEG.cmake
@@ -0,0 +1,111 @@
+# - Try to find FFMPEG
+# Once done this will define
+#  
+#  FFMPEG_FOUND		 - system has FFMPEG
+#  FFMPEG_INCLUDE_DIR	 - the include directories
+#  FFMPEG_LIBRARY_DIR	 - the directory containing the libraries
+#  FFMPEG_LIBRARIES	 - link these to use FFMPEG
+#  FFMPEG_SWSCALE_FOUND	 - FFMPEG also has SWSCALE
+#   
+
+SET( FFMPEG_HEADERS avformat.h avcodec.h avutil.h avdevice.h )
+SET( FFMPEG_PATH_SUFFIXES libavformat libavcodec libavutil libavdevice libffmpeg )
+SET( FFMPEG_SWS_HEADERS swscale.h )
+SET( FFMPEG_SWS_PATH_SUFFIXES libswscale )
+
+if( WIN32 )
+   SET( FFMPEG_LIBRARIES avformat-52.lib avcodec-51.lib avutil-49.lib avdevice-52.lib )
+   SET( FFMPEG_SWS_LIBRARIES swscale-0.lib )
+   SET( FFMPEG_LIBRARY_DIR $ENV{FFMPEGDIR}\\lib )
+   SET( FFMPEG_INCLUDE_PATHS $ENV{FFMPEGDIR}\\include )
+
+   # check to see if we can find swscale
+   SET( TMP_ TMP-NOTFOUND )
+   FIND_PATH( TMP_ ${FFMPEG_SWS_LIBRARIES}
+	      PATHS ${FFMPEG_LIBRARY_DIR} )
+   IF ( TMP_ )
+      SET( SWSCALE_FOUND TRUE )
+   ENDIF( TMP_ )
+else( WIN32 )
+   SET( FFMPEG_LIBRARIES avformat avcodec avutil avdevice )
+   SET( FFMPEG_SWS_LIBRARIES swscale )
+   INCLUDE(FindPkgConfig)
+   if ( PKG_CONFIG_FOUND )
+      pkg_check_modules( AVFORMAT libavformat )
+      pkg_check_modules( AVCODEC libavcodec )
+      pkg_check_modules( AVUTIL libavutil )
+      pkg_check_modules( AVDEVICE libavdevice )
+      pkg_check_modules( SWSCALE libswscale )
+   endif ( PKG_CONFIG_FOUND )
+
+   SET( FFMPEG_LIBRARY_DIR   ${AVFORMAT_LIBRARY_DIRS}
+			     ${AVCODEC_LIBRARY_DIRS}
+			     ${AVUTIL_LIBRARY_DIRS}
+			     ${AVDEVICE_LIBRARY_DIRS} )
+   SET( FFMPEG_INCLUDE_PATHS ${AVFORMAT_INCLUDE_DIRS}
+			     ${AVCODEC_INCLUDE_DIRS}
+			     ${AVUTIL_INCLUDE_DIRS}
+			     ${AVDEVICE_INCLUDE_DIRS} )
+endif( WIN32 )
+
+# add in swscale if found
+IF ( SWSCALE_FOUND )
+   SET( FFMPEG_LIBRARY_DIR   ${FFMPEG_LIBRARY_DIR}
+     			     ${SWSCALE_LIBRARY_DIRS} )
+   SET( FFMPEG_INCLUDE_PATHS ${FFMPEG_INCLUDE_PATHS}
+     			     ${SWSCALE_INCLUDE_DIRS} )
+   SET( FFMPEG_HEADERS	     ${FFMPEG_HEADERS}
+     			     ${FFMPEG_SWS_HEADERS} )
+   SET( FFMPEG_PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES}
+     			     ${FFMPEG_SWS_PATH_SUFFIXES} )
+   SET( FFMPEG_LIBRARIES     ${FFMPEG_LIBRARIES}
+     			     ${FFMPEG_SWS_LIBRARIES} )
+ENDIF ( SWSCALE_FOUND )
+
+# find includes
+SET( INC_SUCCESS 0 )
+SET( TMP_ TMP-NOTFOUND )
+SET( FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_PATHS} )
+FOREACH( INC_ ${FFMPEG_HEADERS} )
+   message( "checking: " ${INC_} )
+
+   FIND_PATH( TMP_ ${INC_}
+	      PATHS ${FFMPEG_INCLUDE_PATHS}
+	      PATH_SUFFIXES ${FFMPEG_PATH_SUFFIXES} )
+   IF ( TMP_ )
+      message( "found: " ${TMP_} )
+      MATH( EXPR INC_SUCCESS ${INC_SUCCESS}+1 )
+      SET( FFMPEG_INCLUDE_DIR ${FFMPEG_INCLUDE_DIR} ${TMP_} )
+   ENDIF ( TMP_ )
+   SET( TMP_ TMP-NOTFOUND )
+ENDFOREACH( INC_ )
+
+# clear out duplicates
+if(NOT "${FFMPEG_INCLUDE_DIR}" MATCHES "")
+	LIST( REMOVE_DUPLICATES FFMPEG_INCLUDE_DIR )
+endif(NOT "${FFMPEG_INCLUDE_DIR}" MATCHES "")
+if(NOT "${FFMPEG_LIBRARY_DIR}" MATCHES "")
+	LIST( REMOVE_DUPLICATES FFMPEG_LIBRARY_DIR )
+endif(NOT "${FFMPEG_LIBRARY_DIR}" MATCHES "")
+
+# find the full paths of the libraries
+SET( TMP_ TMP-NOTFOUND )
+IF ( NOT WIN32 )
+   FOREACH( LIB_ ${FFMPEG_LIBRARIES} )
+      FIND_LIBRARY( TMP_ NAMES ${LIB_} PATHS ${FFMPEG_LIBRARY_DIR} )
+      IF ( TMP_ )
+	 SET( FFMPEG_LIBRARIES_FULL ${FFMPEG_LIBRARIES_FULL} ${TMP_} )
+      ENDIF ( TMP_ )
+      SET( TMP_ TMP-NOTFOUND )
+   ENDFOREACH( LIB_ )
+   SET ( FFMPEG_LIBRARIES ${FFMPEG_LIBRARIES_FULL} )
+ENDIF( NOT WIN32 )
+
+LIST( LENGTH FFMPEG_HEADERS LIST_SIZE_ )
+
+SET( FFMPEG_FOUND FALSE )
+SET( FFMPEG_SWSCALE_FOUND FALSE )
+IF ( ${INC_SUCCESS} EQUAL ${LIST_SIZE_} )
+   SET( FFMPEG_FOUND TRUE )
+   SET( FFMPEG_SWSCALE_FOUND ${SWSCALE_FOUND} )
+ENDIF ( ${INC_SUCCESS} EQUAL ${LIST_SIZE_} )