configure

mediastreamer2是开源的网络传输媒体流的库

logfile="config.err"

# installation paths
PREFIX="/usr/local"
libdir='$(PREFIX)/lib'
shlibdir="$libdir"
incdir='$(PREFIX)/include/ffmpeg'
mandir='$(PREFIX)/share/man'
bindir='$(PREFIX)/bin'

# toolchain
cc="gcc"
ar="ar"
ranlib="ranlib"
make="make"
strip="strip"
asmalign_pot="unknown"
ln_s="ln -sf"

# machine
arch=`uname -m`
cpu="generic"

# OS
targetos=$(tolower $(uname -s))

# libraries
enable zlib

# configurable options
enable debug
enable dostrip
enable ffmpeg
enable ffplay
enable ffserver
enable ipv6
enable static
enable mpegaudio_hp
enable network
enable optimizations
enable protocols
vhook="default"

# build settings
SHFLAGS='-shared -Wl,-soname,$@'
VHOOKSHFLAGS='$(SHFLAGS)'
LDLATEFLAGS='-Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
FFSERVERLDFLAGS=-Wl,-E
LDCONFIG="ldconfig"
LIBPREF="lib"
LIBSUF=".a"
FULLNAME='$(NAME)$(BUILDSUF)'
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
SLIBPREF="lib"
SLIBSUF=".so"
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'

# find source path
source_path="`dirname \"$0\"`"
enable source_path_used
if test -z "$source_path" -o "$source_path" = "." ; then
    source_path="`pwd`"
    disable source_path_used
else
    source_path="`cd \"$source_path\"; pwd`"
    echo "$source_path" | grep -q '[[:blank:]]' &&
        die "Out of tree builds are impossible with whitespace in source path."
fi

FFMPEG_CONFIGURATION="$@"

ENCODER_LIST=`sed -n 's/^[^#]*ENC.*(.*, *\(.*\)).*/\1_encoder/p' "$source_path/libavcodec/allcodecs.c"`
DECODER_LIST=`sed -n 's/^[^#]*DEC.*(.*, *\(.*\)).*/\1_decoder/p' "$source_path/libavcodec/allcodecs.c"`
PARSER_LIST=`sed -n 's/^[^#]*PARSER.*(.*, *\(.*\)).*/\1_parser/p' "$source_path/libavcodec/allcodecs.c"`
BSF_LIST=`sed -n 's/^[^#]*BSF.*(.*, *\(.*\)).*/\1_bsf/p' "$source_path/libavcodec/allcodecs.c"`
MUXER_LIST=`sed -n 's/^[^#]*_MUX.*(.*, *\(.*\)).*/\1_muxer/p' "$source_path/libavformat/allformats.c"`
DEMUXER_LIST=`sed -n 's/^[^#]*DEMUX.*(.*, *\(.*\)).*/\1_demuxer/p' "$source_path/libavformat/allformats.c"`
OUTDEV_LIST=`sed -n 's/^[^#]*_MUX.*(.*, *\(.*\)).*/\1_muxer/p' "$source_path/libavdevice/alldevices.c"`
INDEV_LIST=`sed -n 's/^[^#]*DEMUX.*(.*, *\(.*\)).*/\1_demuxer/p' "$source_path/libavdevice/alldevices.c"`
PROTOCOL_LIST=`sed -n 's/^[^#]*PROTOCOL.*(.*, *\(.*\)).*/\1_protocol/p' "$source_path/libavformat/allformats.c"`

enable $ARCH_EXT_LIST \
       $DECODER_LIST \
       $ENCODER_LIST \
       $PARSER_LIST \
       $BSF_LIST \
       $DEMUXER_LIST \
       $MUXER_LIST \
       $PROTOCOL_LIST \
       $INDEV_LIST \
       $OUTDEV_LIST \

die_unknown(){
    echo "Unknown option \"$1\"."
    echo "See $0 --help for available options."
    exit 1
}

show_list() {
    suffix=_$1
    shift
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
    exit 0
}

for opt do
    optval="${opt#*=}"
    case "$opt" in
    --log)
    ;;
    --log=*) logging="$optval"
    ;;
    --prefix=*) PREFIX="$optval"
    ;;
    --libdir=*) libdir="$optval"
    ;;
    --shlibdir=*) shlibdir="$optval"
    ;;
    --incdir=*) incdir="$optval"
    ;;
    --mandir=*) mandir="$optval"
    ;;
    --source-path=*) source_path="$optval"
    ;;
    --cross-prefix=*) cross_prefix="$optval"
    ;;
    --cross-compile) enable cross_compile
    ;;
    --target-os=*) targetos="$optval"
    ;;
    --cc=*) cc="$optval"
    ;;
    --make=*) make="$optval"
    ;;
    --extra-cflags=*) add_cflags "$optval"
    ;;
    --extra-ldflags=*) add_ldflags "$optval"
    ;;
    --extra-libs=*) add_extralibs "$optval"
    ;;
    --build-suffix=*) BUILDSUF="$optval"
    ;;
    --arch=*) arch="$optval"
    ;;
    --cpu=*) cpu="$optval"
    ;;
    --enable-sunmlib) enable mlib
    ;;
    --disable-strip) disable dostrip
    ;;
    --disable-encoders) disable $ENCODER_LIST
    ;;
    --disable-decoders) disable $DECODER_LIST
    ;;
    --disable-muxers) disable $MUXER_LIST
    ;;
    --disable-demuxers) disable $DEMUXER_LIST
    ;;
    --disable-parsers) disable $PARSER_LIST
    ;;
    --disable-bsfs) disable $BSF_LIST
    ;;
    --disable-protocols) disable $PROTOCOL_LIST
    ;;
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
    ;;
    --enable-*=*|--disable-*=*)
    eval `echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/'`
    case "$thing" in
        encoder|decoder|muxer|demuxer|parser|bsf|protocol) $action ${optval}_${thing} ;;
        *) die_unknown "$opt" ;;
    esac
    ;;
    --enable-?*|--disable-?*)
    eval `echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g'`
    echo "$CMDLINE_SELECT" | grep -q "^ *$option\$" || die_unknown $opt
    $action $option
    ;;
    --list-*)
        NAME="${opt#--list-}"
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
        NAME=${NAME%s}
        eval show_list $NAME \$$(toupper $NAME)_LIST
    ;;
    --help|-h) show_help
    ;;
    *)
    die_unknown $opt
    ;;
    esac
done

case "$arch" in
    i386|i486|i586|i686|i86pc|BePC)
        arch="x86_32"
        enable fast_unaligned
    ;;
    x86_64|amd64)
        arch="x86_32"
        enable fast_unaligned
        canon_arch="`$cc -dumpmachine | sed -e 's,\([^-]*\)-.*,\1,'`"
        if [ x"$canon_arch" = x"x86_64" -o x"$canon_arch" = x"amd64" ]; then
            if [ -z "`echo $CFLAGS | grep -- -m32`"  ]; then
                arch="x86_64"
                enable fast_64bit
            fi
        fi
    ;;
    # armv4l is a subset of armv[567]*l
    arm|armv[4567]*l)
        arch="armv4l"
    ;;
    alpha)
        arch="alpha"
        enable fast_64bit
    ;;
    "Power Macintosh"|ppc|powerpc)
        arch="powerpc"
    ;;
    ppc64)
        arch="powerpc"
        enable fast_64bit
    ;;
    mips|mipsel|IP*)
        arch="mips"
    ;;
    sun4u|sparc64)
        arch="sparc64"
        enable fast_64bit
    ;;
    sparc)
        arch="sparc"
    ;;
    sh4)
        arch="sh4"
    ;;
    parisc)
        arch="parisc"
    ;;
    parisc64)
        arch="parisc"
        enable fast_64bit
    ;;
    s390|s390x)
        arch="s390"
    ;;
    m68k)
        arch="m68k"
    ;;
    ia64)
        arch="ia64"
        enable fast_64bit
    ;;
    bfin)
        arch="bfin"
    ;;
    *)
        arch="unknown"
    ;;
esac

enable $arch
enabled_any x86_32 x86_64 && enable x86
enabled     sparc64       && enable sparc

# OS specific
case $targetos in
    beos|haiku|zeta)
        PREFIX="$HOME/config"
        # helps building libavcodec
        add_cflags "-DPIC -fomit-frame-pointer"
        # 3 gcc releases known for BeOS, each with ugly bugs
        gcc_version="`$cc -v 2>&1 | grep version | cut -d ' ' -f3-`"
        case "$gcc_version" in
          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
            disable mmx
            ;;
          *20010315*) echo "BeBits gcc"
            add_cflags "-fno-expensive-optimizations"
            ;;
        esac
        LDCONFIG="echo ignoring ldconfig"
        SHFLAGS=-nostart
        # enable BeOS things
        enable audio_beos
        # no need for libm, but the inet stuff
        # Check for BONE
        # XXX: actually should check for NOT net_server
        if (echo $BEINCLUDES|grep 'headers/be/bone' >/dev/null); then
            network_extralibs="-lbind -lsocket"
        else
            enable beos_netserver
            network_extralibs="-lnet"
        fi ;;
    sunos)
        FFSERVERLDFLAGS=""
        SHFLAGS='-shared -Wl,-h,$@'
        network_extralibs="-lsocket -lnsl"
        ;;
    netbsd)
        oss_demuxer_extralibs="-lossaudio"
        oss_muxer_extralibs="-lossaudio"
        ;;
    openbsd)
        disable need_memalign
        LIBOBJFLAGS='$(PIC)'
        LDCONFIG='ldconfig -m $(SHLIBDIR)'
        SHFLAGS='-shared'
        SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF).$(LIBVERSION)'
        SLIBNAME_WITH_VERSION='$(SLIBNAME)'
        SLIBNAME_WITH_MAJOR='$(SLIBNAME)'
        oss_demuxer_extralibs="-lossaudio"
        oss_muxer_extralibs="-lossaudio"
        ;;
    freebsd)
        disable need_memalign
        ;;
    bsd/os)
        osextralibs="-lpoll -lgnugetopt"
        strip="strip -d"
        ;;
    darwin)
        disable need_memalign
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(SPPVERSION),-compatibility_version,$(SPPVERSION) -Wl,-read_only_relocs,suppress'
        VHOOKSHFLAGS='-dynamiclib -Wl,-single_module -flat_namespace -undefined suppress -Wl,-install_name,$(SHLIBDIR)/vhook/$@'
        strip="strip -x"
        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
        SLIBSUF=".dylib"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
        FFSERVERLDFLAGS=-Wl,-bind_at_load
        ;;
    mingw32*)
        targetos=mingw32
        shlibdir="$bindir"
        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
        if enabled swscaler; then
            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
        fi
        disable ffserver
        SLIBPREF=""
        SLIBSUF=".dll"
        EXESUF=".exe"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SLIB_EXTRA_CMD='-lib /machine:i386 /def:$(@:$(SLIBSUF)=.def)'
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
        SHFLAGS='-shared -Wl,--output-def,$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
        ;;
    cygwin*)
        targetos=cygwin
        shlibdir="$bindir"
        VHOOKSHFLAGS='-shared -L$(BUILD_ROOT)/libavformat -L$(BUILD_ROOT)/libavcodec -L$(BUILD_ROOT)/libavutil'
        VHOOKLIBS='-lavformat$(BUILDSUF) -lavcodec$(BUILDSUF) -lavutil$(BUILDSUF) $(EXTRALIBS)'
        if enabled swscaler; then
            VHOOKSHFLAGS="$VHOOKSHFLAGS -L\$(BUILD_ROOT)/libswscale"
            VHOOKLIBS="$VHOOKLIBS -lswscale\$(BUILDSUF)"
        fi
        EXESUF=".exe"
        SLIBPREF="cyg"
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
        ;;
    *-dos|freedos|opendos)
        enable memalign_hack
        disable ffplay ffserver vhook
        disable $INDEV_LIST $OUTDEV_LIST
        network_extralibs="-lsocket"
        EXESUF=".exe"
        ;;
    linux)
        LDLATEFLAGS="-Wl,--as-needed $LDLATEFLAGS"
        enable dv1394
        ;;
    irix*)
        targetos=irix
        ranlib="echo ignoring ranlib"
        ;;
    os/2*)
        ar="emxomfar -p256"
        ranlib="echo ignoring ranlib"
        strip="lxlite"
        ln_s="cp -f"
        add_cflags "-Zomf"
        EXESUF=".exe"
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
        SHFLAGS='$(NAME).def -Zdll -Zomf'
        FFSERVERLDFLAGS=""
        LIBSUF="_s.lib"
        SLIBPREF=""
        SLIBSUF=".dll"
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(NAME).def; \
          echo PROTMODE >> $(NAME).def; \
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(NAME).def; \
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(NAME).def; \
          echo EXPORTS >> $(NAME).def; \
          emxexp -o $(OBJS) >> $(NAME).def'
        SLIB_EXTRA_CMD='emximp -o $(LIBPREF)$(NAME)_dll.a $(NAME).def; \
          emximp -o $(LIBPREF)$(NAME)_dll.lib $(NAME).def;'
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
        vhook="no"
        ;;

    *)
        targetos="${targetos}-UNKNOWN"
        ;;
esac

add_extralibs $osextralibs

if ! disabled logging ; then
    enabled logging || logfile="$logging"
    echo "# $0 $@" >$logfile
    set >>$logfile
else
    logfile=/dev/null
fi

# Combine FFLDFLAGS and the LDFLAGS environment variable.
LDFLAGS="$FFLDFLAGS $LDFLAGS"

test -n "$cross_prefix" && enable cross_compile
cc="${cross_prefix}${cc}"
ar="${cross_prefix}${ar}"
ranlib="${cross_prefix}${ranlib}"
strip="${cross_prefix}${strip}"

# we need to build at least one lib type