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#!/bin/sh
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#
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# FFmpeg configure script
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#
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# Copyright (c) 2000-2002 Fabrice Bellard
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# Copyright (c) 2005-2008 Diego Biurrun
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# Copyright (c) 2005-2008 Mans Rullgard
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#
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# Prevent locale nonsense from breaking basic text processing.
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LC_ALL=C
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export LC_ALL
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# make sure we are running under a compatible shell
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# try to make this part work with most shells
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try_exec(){
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    echo "Trying shell $1"
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    type "$1" > /dev/null 2>&1 && exec "$@"
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}
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unset foo
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(: ${foo%%bar}) 2> /dev/null
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E1="$?"
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(: ${foo?}) 2> /dev/null
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E2="$?"
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if test "$E1" != 0 || test "$E2" = 0; then
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    echo "Broken shell detected.  Trying alternatives."
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    export FF_CONF_EXEC
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    if test "0$FF_CONF_EXEC" -lt 1; then
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        FF_CONF_EXEC=1
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        try_exec bash "$0" "$@"
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    fi
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    if test "0$FF_CONF_EXEC" -lt 2; then
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        FF_CONF_EXEC=2
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        try_exec ksh "$0" "$@"
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    fi
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    if test "0$FF_CONF_EXEC" -lt 3; then
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        FF_CONF_EXEC=3
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        try_exec /usr/xpg4/bin/sh "$0" "$@"
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    fi
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    echo "No compatible shell script interpreter found."
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    echo "This configure script requires a POSIX-compatible shell"
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    echo "such as bash or ksh."
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    echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
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    echo "Instead, install a working POSIX-compatible shell."
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    echo "Disabling this configure test will create a broken FFmpeg."
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    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
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        echo "This bash version ($BASH_VERSION) is broken on your platform."
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        echo "Upgrade to a later version if available."
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    fi
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    exit 1
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fi
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show_help(){
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  echo "Usage: configure [options]"
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  echo "Options: [defaults in brackets after descriptions]"
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  echo
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  echo "Standard options:"
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  echo "  --help                   print this message"
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  echo "  --logfile=FILE           log tests and output to FILE [config.err]"
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  echo "  --disable-logging        do not log configure debug information"
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  echo "  --prefix=PREFIX          install in PREFIX [$prefix]"
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  echo "  --bindir=DIR             install binaries in DIR [PREFIX/bin]"
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  echo "  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]"
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  echo "  --libdir=DIR             install libs in DIR [PREFIX/lib]"
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  echo "  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]"
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  echo "  --incdir=DIR             install includes in DIR [PREFIX/include]"
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  echo "  --mandir=DIR             install man page in DIR [PREFIX/share/man]"
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  echo
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  echo "Configuration options:"
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  echo "  --disable-static         do not build static libraries [no]"
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  echo "  --enable-shared          build shared libraries [no]"
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  echo "  --enable-gpl             allow use of GPL code, the resulting libs"
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  echo "                           and binaries will be under GPL [no]"
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  echo "  --enable-nonfree         allow use of nonfree code, the resulting libs"
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  echo "                           and binaries will be unredistributable [no]"
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  echo "  --disable-ffmpeg         disable ffmpeg build"
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  echo "  --disable-ffplay         disable ffplay build"
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  echo "  --disable-ffserver       disable ffserver build"
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  echo "  --enable-postproc        enable GPLed postprocessing support [no]"
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  echo "  --enable-avfilter        video filter support [no]"
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  echo "  --enable-avfilter-lavf   video filters dependent on avformat [no]"
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  echo "  --enable-beosthreads     use BeOS threads [no]"
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  echo "  --enable-os2threads      use OS/2 threads [no]"
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  echo "  --enable-pthreads        use pthreads [no]"
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  echo "  --enable-w32threads      use Win32 threads [no]"
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  echo "  --enable-x11grab         enable X11 grabbing [no]"
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  echo "  --disable-network        disable network support [no]"
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  echo "  --disable-ipv6           disable IPv6 support [no]"
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  echo "  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]"
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  echo "  --enable-gray            enable full grayscale support (slower color)"
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  echo "  --disable-fastdiv        disable table-based division"
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  echo "  --enable-small           optimize for size instead of speed"
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  echo "  --disable-aandct         disable AAN DCT code"
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  echo "  --disable-fft            disable FFT code"
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  echo "  --disable-golomb         disable Golomb code"
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  echo "  --disable-mdct           disable MDCT code"
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  echo "  --disable-rdft           disable RDFT code"
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  echo "  --enable-hardcoded-tables use hardcoded tables instead of runtime generation"
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  echo "  --enable-memalign-hack   emulate memalign, interferes with memory debuggers"
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  echo "  --enable-beos-netserver  enable BeOS netserver"
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  echo "  --disable-encoder=NAME   disable encoder NAME"
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  echo "  --enable-encoder=NAME    enable encoder NAME"
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  echo "  --disable-encoders       disable all encoders"
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  echo "  --disable-decoder=NAME   disable decoder NAME"
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  echo "  --enable-decoder=NAME    enable decoder NAME"
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  echo "  --disable-decoders       disable all decoders"
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  echo "  --disable-muxer=NAME     disable muxer NAME"
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  echo "  --enable-muxer=NAME      enable muxer NAME"
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  echo "  --disable-muxers         disable all muxers"
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  echo "  --disable-demuxer=NAME   disable demuxer NAME"
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  echo "  --enable-demuxer=NAME    enable demuxer NAME"
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  echo "  --disable-demuxers       disable all demuxers"
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  echo "  --enable-parser=NAME     enable parser NAME"
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  echo "  --disable-parser=NAME    disable parser NAME"
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  echo "  --disable-parsers        disable all parsers"
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  echo "  --enable-bsf=NAME        enable bitstream filter NAME"
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  echo "  --disable-bsf=NAME       disable bitstream filter NAME"
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  echo "  --disable-bsfs           disable all bitstream filters"
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  echo "  --enable-protocol=NAME   enable protocol NAME"
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  echo "  --disable-protocol=NAME  disable protocol NAME"
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  echo "  --disable-protocols      disable all protocols"
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  echo "  --disable-indevs         disable input devices"
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  echo "  --disable-outdevs        disable output devices"
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  echo "  --disable-devices        disable all devices"
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  echo "  --enable-filter=NAME     enable filter NAME"
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  echo "  --disable-filter=NAME    disable filter NAME"
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  echo "  --disable-filters        disable all filters"
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  echo "  --list-decoders          show all available decoders"
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  echo "  --list-encoders          show all available encoders"
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  echo "  --list-muxers            show all available muxers"
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  echo "  --list-demuxers          show all available demuxers"
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  echo "  --list-parsers           show all available parsers"
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  echo "  --list-protocols         show all available protocols"
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  echo "  --list-bsfs              show all available bitstream filters"
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  echo "  --list-indevs            show all available input devices"
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  echo "  --list-outdevs           show all available output devices"
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  echo "  --list-filters           show all available filters"
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  echo
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  echo "External library support:"
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  echo "  --enable-avisynth        enable reading of AVISynth script files [no]"
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  echo "  --enable-bzlib           enable bzlib [autodetect]"
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  echo "  --enable-libamr-nb       enable libamr-nb floating point audio codec [no]"
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  echo "  --enable-libamr-wb       enable libamr-wb floating point audio codec [no]"
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  echo "  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394"
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  echo "                           and libraw1394 [no]"
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  echo "  --enable-libdirac        enable Dirac support via libdirac [no]"
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  echo "  --enable-libfaac         enable FAAC support via libfaac [no]"
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  echo "  --enable-libfaad         enable FAAD support via libfaad [no]"
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  echo "  --enable-libfaadbin      open libfaad.so.0 at runtime [no]"
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  echo "  --enable-libgsm          enable GSM support via libgsm [no]"
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  echo "  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]"
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  echo "  --enable-libnut          enable NUT (de)muxing via libnut,"
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  echo "                           native (de)muxer exists [no]"
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  echo "  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]"
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  echo "  --enable-libschroedinger enable Dirac support via libschroedinger [no]"
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  echo "  --enable-libspeex        enable Speex decoding via libspeex [no]"
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  echo "  --enable-libtheora       enable Theora encoding via libtheora [no]"
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  echo "  --enable-libvorbis       enable Vorbis encoding via libvorbis,"
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  echo "                           native implementation exists [no]"
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  echo "  --enable-libx264         enable H.264 encoding via x264 [no]"
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  echo "  --enable-libxvid         enable Xvid encoding via xvidcore,"
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  echo "                           native MPEG-4/Xvid encoder exists [no]"
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  echo "  --enable-mlib            enable Sun medialib [no]"
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  echo "  --enable-zlib            enable zlib [autodetect]"
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  echo ""
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  echo "Advanced options (experts only):"
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  echo "  --source-path=PATH       path to source code [$source_path]"
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  echo "  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]"
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  echo "  --enable-cross-compile   assume a cross-compiler is used"
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  echo "  --sysroot=PATH           root of cross-build tree"
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  echo "  --sysinclude=PATH        location of cross-build system headers"
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  echo "  --target-os=OS           compiler targets OS [$target_os]"
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  echo "  --target-exec=CMD        command to run executables on target"
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  echo "  --target-path=DIR        path to view of build directory on target"
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  echo "  --nm=NM                  use nm tool"
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  echo "  --as=AS                  use assembler AS [$as_default]"
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  echo "  --cc=CC                  use C compiler CC [$cc_default]"
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  echo "  --host-cc=HOSTCC         use host C compiler HOSTCC"
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  echo "  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host"
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  echo "  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host"
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  echo "  --host-libs=HLIBS        use libs HLIBS when linking for host"
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  echo "  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]"
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  echo "  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]"
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  echo "  --extra-libs=ELIBS       add ELIBS [$ELIBS]"
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  echo "  --extra-version=STRING   version string suffix []"
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  echo "  --build-suffix=SUFFIX    library name suffix []"
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  echo "  --arch=ARCH              select architecture [$arch]"
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  echo "  --cpu=CPU                select the minimum required CPU (affects"
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  echo "                           instruction selection, may crash on older CPUs)"
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  echo "  --enable-powerpc-perf    enable performance report on PPC"
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  echo "                           (requires enabling PMC)"
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  echo "  --disable-altivec        disable AltiVec optimizations"
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  echo "  --disable-amd3dnow       disable 3DNow! optimizations"
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  echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
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  echo "  --disable-mmx            disable MMX optimizations"
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  echo "  --disable-mmx2           disable MMX2 optimizations"
201
  echo "  --disable-sse            disable SSE optimizations"
202
  echo "  --disable-ssse3          disable SSSE3 optimizations"
203
  echo "  --disable-armv5te        disable armv5te optimizations"
204
  echo "  --disable-armv6          disable armv6 optimizations"
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  echo "  --disable-armv6t2        disable armv6t2 optimizations"
206
  echo "  --disable-armvfp         disable ARM VFP optimizations"
207
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
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  echo "  --disable-mmi            disable MMI optimizations"
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  echo "  --disable-neon           disable neon optimizations"
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  echo "  --disable-vis            disable VIS optimizations"
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  echo "  --disable-yasm           disable use of yasm assembler"
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  echo
213
  echo "Developer options (useful when working on FFmpeg itself):"
214
  echo "  --disable-debug          disable debugging symbols"
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  echo "  --enable-debug=LEVEL     set the debug level [$debuglevel]"
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  echo "  --enable-gprof           enable profiling with gprof [$gprof]"
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  echo "  --disable-optimizations  disable compiler optimizations"
218
  echo "  --enable-extra-warnings  enable more compiler warnings"
219
  echo "  --disable-stripping      disable stripping of executables and shared libraries"
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  echo ""
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  echo "NOTE: Object files are built at the place where configure is launched."
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  exit 0
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}
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225
log(){
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    echo "$@" >> $logfile
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}
228

    
229
log_file(){
230
    log BEGIN $1
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    pr -n -t $1 >> $logfile
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    log END $1
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}
234

    
235
echolog(){
236
    log "$@"
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    echo "$@"
238
}
239

    
240
die(){
241
    echolog "$@"
242
    cat <<EOF
243
If you think configure made a mistake, make sure you are using the latest
244
version from SVN.  If the latest version fails, report the problem to the
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ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
246
EOF
247
    if disabled logging; then
248
        cat <<EOF
249
Rerun configure with logging enabled (do not use --disable-logging), and
250
include the log this produces with your report.
251
EOF
252
    else
253
cat <<EOF
254
Include the log file "$logfile" produced by configure as this will help
255
solving the problem.
256
EOF
257
    fi
258
    exit 1
259
}
260

    
261
# Avoid locale weirdness, besides we really just want to translate ASCII.
262
toupper(){
263
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
264
}
265

    
266
tolower(){
267
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
268
}
269

    
270
c_escape(){
271
    echo "$*" | sed 's/["\\]/\\\0/g'
272
}
273

    
274
set_all(){
275
    value=$1
276
    shift
277
    for var in $*; do
278
        eval $var=$value
279
    done
280
}
281

    
282
set_weak(){
283
    value=$1
284
    shift
285
    for var; do
286
        eval : \${$var:=$value}
287
    done
288
}
289

    
290
pushvar(){
291
    for var in $*; do
292
        eval level=\${${var}_level:=0}
293
        eval ${var}_${level}="\$$var"
294
        eval ${var}_level=$(($level+1))
295
    done
296
}
297

    
298
popvar(){
299
    for var in $*; do
300
        eval level=\${${var}_level:-0}
301
        test $level = 0 && continue
302
        eval level=$(($level-1))
303
        eval $var="\${${var}_${level}}"
304
        eval ${var}_level=$level
305
        eval unset ${var}_${level}
306
    done
307
}
308

    
309
enable(){
310
    set_all yes $*
311
}
312

    
313
disable(){
314
    set_all no $*
315
}
316

    
317
enable_weak(){
318
    set_weak yes $*
319
}
320

    
321
disable_weak(){
322
    set_weak no $*
323
}
324

    
325
enable_safe(){
326
    enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
327
}
328

    
329
disable_safe(){
330
    disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
331
}
332

    
333
do_enable_deep(){
334
    for var; do
335
        enabled $var && continue
336
        eval sel="\$${var}_select"
337
        eval sgs="\$${var}_suggest"
338
        pushvar var sgs
339
        enable_deep $sel
340
        popvar sgs
341
        enable_deep_weak $sgs
342
        popvar var
343
    done
344
}
345

    
346
enable_deep(){
347
    do_enable_deep $*
348
    enable $*
349
}
350

    
351
enable_deep_weak(){
352
    do_enable_deep $*
353
    enable_weak $*
354
}
355

    
356
enabled(){
357
    test "${1#!}" = "$1" && op== || op=!=
358
    eval test "x\$${1#!}" $op "xyes"
359
}
360

    
361
disabled(){
362
    test "${1#!}" = "$1" && op== || op=!=
363
    eval test "x\$${1#!}" $op "xno"
364
}
365

    
366
enabled_all(){
367
    for opt; do
368
        enabled $opt || return 1
369
    done
370
}
371

    
372
disabled_all(){
373
    for opt; do
374
        disabled $opt || return 1
375
    done
376
}
377

    
378
enabled_any(){
379
    for opt; do
380
        enabled $opt && return 0
381
    done
382
}
383

    
384
disabled_any(){
385
    for opt; do
386
        disabled $opt && return 0
387
    done
388
    return 1
389
}
390

    
391
set_default(){
392
    for opt; do
393
        eval : \${$opt:=\$${opt}_default}
394
    done
395
}
396

    
397
is_in(){
398
    value=$1
399
    shift
400
    for var in $*; do
401
        [ $var = $value ] && return 0
402
    done
403
    return 1
404
}
405

    
406
check_deps(){
407
    for cfg; do
408
        cfg="${cfg#!}"
409
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
410
        disabled ${cfg}_checking && continue
411
        enable ${cfg}_checking
412

    
413
        eval dep_all="\$${cfg}_deps"
414
        eval dep_any="\$${cfg}_deps_any"
415
        eval dep_sel="\$${cfg}_select"
416
        eval dep_sgs="\$${cfg}_suggest"
417

    
418
        pushvar cfg dep_all dep_any dep_sel dep_sgs
419
        check_deps $dep_all $dep_any $dep_sel $dep_sgs
420
        popvar cfg dep_all dep_any dep_sel dep_sgs
421

    
422
        enabled_all  $dep_all || disable $cfg
423
        enabled_any  $dep_any || disable $cfg
424
        disabled_any $dep_sel && disable $cfg
425

    
426
        if enabled $cfg; then
427
            eval dep_extralibs="\$${cfg}_extralibs"
428
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
429
            enable_deep $dep_sel
430
            enable_deep_weak $dep_sgs
431
        fi
432

    
433
        disable ${cfg}_checking
434
    done
435
}
436

    
437
print_config(){
438
    pfx=$1
439
    header=$2
440
    makefile=$3
441
    shift 3
442
    for cfg; do
443
        ucname="$(toupper $cfg)"
444
        if enabled $cfg; then
445
            echo "#define ${pfx}${ucname} 1" >> $header
446
            echo "${pfx}${ucname}=yes" >> $makefile
447
        else
448
            echo "#define ${pfx}${ucname} 0" >> $header
449
        fi
450
    done
451
}
452

    
453
flags_saved(){
454
    (: ${SAVE_CFLAGS?}) 2> /dev/null
455
}
456

    
457
save_flags(){
458
    flags_saved && return
459
    SAVE_CFLAGS="$CFLAGS"
460
    SAVE_LDFLAGS="$LDFLAGS"
461
    SAVE_extralibs="$extralibs"
462
}
463

    
464
restore_flags(){
465
    flags_saved || return
466
    CFLAGS="$SAVE_CFLAGS"
467
    LDFLAGS="$SAVE_LDFLAGS"
468
    extralibs="$SAVE_extralibs"
469
    unset SAVE_CFLAGS
470
    unset SAVE_LDFLAGS
471
    unset SAVE_extralibs
472
}
473

    
474
temp_cflags(){
475
    save_flags
476
    CFLAGS="$CFLAGS $*"
477
}
478

    
479
temp_ldflags(){
480
    save_flags
481
    LDFLAGS="$LDFLAGS $*"
482
}
483

    
484
temp_extralibs(){
485
    save_flags
486
    extralibs="$extralibs $*"
487
}
488

    
489
append(){
490
    var=$1
491
    shift
492
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
493
    eval "$var=\"\$$var $*\""
494
}
495

    
496
add_cflags(){
497
    append CFLAGS "$@"
498
}
499

    
500
add_ldflags(){
501
    append LDFLAGS "$@"
502
}
503

    
504
add_extralibs(){
505
    append extralibs "$@"
506
}
507

    
508
check_cmd(){
509
    log "$@"
510
    "$@" >> $logfile 2>&1
511
}
512

    
513
check_cc(){
514
    log check_cc "$@"
515
    cat > $TMPC
516
    log_file $TMPC
517
    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
518
}
519

    
520
check_cpp(){
521
    log check_cpp "$@"
522
    cat > $TMPC
523
    log_file $TMPC
524
    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
525
}
526

    
527
check_as(){
528
    log check_as "$@"
529
    cat > $TMPC
530
    log_file $TMPC
531
    check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
532
}
533

    
534
check_asm(){
535
    log check_asm "$@"
536
    name="$1"
537
    asm="$2"
538
    shift 2
539
    check_as "$@" <<EOF && enable $name || disable $name
540
void foo(void){ __asm__ volatile($asm); }
541
EOF
542
}
543

    
544
check_yasm(){
545
    log check_yasm "$@"
546
    echo "$1" > $TMPS
547
    log_file $TMPS
548
    shift 1
549
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
550
}
551

    
552
check_ld(){
553
    log check_ld "$@"
554
    check_cc || return
555
    flags=''
556
    libs=''
557
    for f; do
558
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
559
    done
560
    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
561
}
562

    
563
check_cflags(){
564
    log check_cflags "$@"
565
    check_cc "$@" <<EOF && add_cflags "$@"
566
int x;
567
EOF
568
}
569

    
570
check_ldflags(){
571
    log check_ldflags "$@"
572
    check_ld "$@" <<EOF && add_ldflags "$@"
573
int main(void){ return 0; }
574
EOF
575
}
576

    
577
check_header(){
578
    log check_header "$@"
579
    header=$1
580
    shift
581
    disable_safe $header
582
    check_cpp "$@" <<EOF && enable_safe $header
583
#include <$header>
584
int x;
585
EOF
586
}
587

    
588
check_func(){
589
    log check_func "$@"
590
    func=$1
591
    shift
592
    disable $func
593
    check_ld "$@" <<EOF && enable $func
594
extern int $func();
595
int main(void){ $func(); }
596
EOF
597
}
598

    
599
check_func_headers(){
600
    log check_func_headers "$@"
601
    headers=$1
602
    func=$2
603
    shift 2
604
    disable $func
605
    incs=""
606
    for hdr in $headers; do
607
        incs="$incs
608
#include <$hdr>"
609
    done
610
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
611
$incs
612
int main(int argc, char **argv){
613
    (void) $func;
614
    return 0;
615
}
616
EOF
617
}
618

    
619
check_cpp_condition(){
620
    log check_cpp_condition "$@"
621
    header=$1
622
    condition=$2
623
    check_cpp <<EOF
624
#include <$header>
625
#if !($condition)
626
#error "unsatisfied condition: $condition"
627
#endif
628
EOF
629
}
630

    
631
check_lib(){
632
    log check_lib "$@"
633
    header="$1"
634
    func="$2"
635
    shift 2
636
    temp_extralibs "$@"
637
    check_header $header && check_func $func && add_extralibs "$@"
638
    err=$?
639
    restore_flags
640
    return $err
641
}
642

    
643
check_lib2(){
644
    log check_lib2 "$@"
645
    headers="$1"
646
    func="$2"
647
    shift 2
648
    temp_extralibs "$@"
649
    check_func_headers "$headers" $func && add_extralibs "$@"
650
    err=$?
651
    restore_flags
652
    return $err
653
}
654

    
655
check_exec(){
656
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
657
}
658

    
659
check_exec_crash(){
660
    code=$(cat)
661

    
662
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
663
    # are safe but may not be available everywhere.  Thus we use
664
    # raise(SIGTERM) instead.  The check is run in a subshell so we
665
    # can redirect the "Terminated" message from the shell.  SIGBUS
666
    # is not defined by standard C so it is used conditionally.
667

    
668
    (check_exec "$@") >> $logfile 2>&1 <<EOF
669
#include <signal.h>
670
static void sighandler(int sig){
671
    raise(SIGTERM);
672
}
673
int main(void){
674
    signal(SIGILL, sighandler);
675
    signal(SIGFPE, sighandler);
676
    signal(SIGSEGV, sighandler);
677
#ifdef SIGBUS
678
    signal(SIGBUS, sighandler);
679
#endif
680
    { $code }
681
}
682
EOF
683
}
684

    
685
check_type(){
686
    log check_type "$@"
687
    headers=$1
688
    type=$2
689
    shift 2
690
    disable $type
691
    incs=""
692
    for hdr in $headers; do
693
        incs="$incs
694
#include <$hdr>"
695
    done
696
    check_cc "$@" <<EOF && enable $type
697
$incs
698
$type v;
699
EOF
700
}
701

    
702
require(){
703
    name="$1"
704
    header="$2"
705
    func="$3"
706
    shift 3
707
    check_lib $header $func "$@" || die "ERROR: $name not found"
708
}
709

    
710
require2(){
711
    name="$1"
712
    headers="$2"
713
    func="$3"
714
    shift 3
715
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
716
}
717

    
718
check_foo_config(){
719
    cfg=$1
720
    pkg=$2
721
    header=$3
722
    func=$4
723
    shift 4
724
    disable $cfg
725
    check_cmd ${pkg}-config --version
726
    err=$?
727
    if test "$err" = 0; then
728
        temp_cflags $(${pkg}-config --cflags)
729
        temp_extralibs $(${pkg}-config --libs)
730
        check_lib "$@" $header $func && enable $cfg
731
    fi
732
    return $err
733
}
734

    
735
apply(){
736
    file=$1
737
    shift
738
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
739
}
740

    
741
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
742
# system-dependent things.
743

    
744
COMPONENT_LIST="
745
    bsfs
746
    decoders
747
    demuxers
748
    encoders
749
    filters
750
    indevs
751
    muxers
752
    outdevs
753
    parsers
754
    protocols
755
"
756

    
757
CONFIG_LIST="
758
    $COMPONENT_LIST
759
    aandct
760
    avfilter
761
    avfilter_lavf
762
    avisynth
763
    beos_netserver
764
    bzlib
765
    fastdiv
766
    ffmpeg
767
    ffplay
768
    ffserver
769
    fft
770
    golomb
771
    gpl
772
    gprof
773
    gray
774
    hardcoded_tables
775
    ipv6
776
    libamr_nb
777
    libamr_wb
778
    libdc1394
779
    libdirac
780
    libfaac
781
    libfaad
782
    libfaadbin
783
    libgsm
784
    libmp3lame
785
    libnut
786
    libopenjpeg
787
    libschroedinger
788
    libspeex
789
    libtheora
790
    libvorbis
791
    libx264
792
    libxvid
793
    mdct
794
    memalign_hack
795
    mlib
796
    mpegaudio_hp
797
    network
798
    nonfree
799
    postproc
800
    powerpc_perf
801
    rdft
802
    shared
803
    small
804
    static
805
    x11grab
806
    zlib
807
"
808

    
809
THREADS_LIST='
810
    beosthreads
811
    os2threads
812
    pthreads
813
    w32threads
814
'
815

    
816
ARCH_LIST='
817
    alpha
818
    arm
819
    bfin
820
    ia64
821
    m68k
822
    mips
823
    parisc
824
    ppc
825
    s390
826
    sh4
827
    sparc
828
    sparc64
829
    x86
830
    x86_32
831
    x86_64
832
'
833

    
834
ARCH_EXT_LIST='
835
    altivec
836
    amd3dnow
837
    amd3dnowext
838
    armv5te
839
    armv6
840
    armv6t2
841
    armvfp
842
    iwmmxt
843
    mmi
844
    mmx
845
    mmx2
846
    neon
847
    ppc4xx
848
    sse
849
    ssse3
850
    vis
851
'
852

    
853
HAVE_LIST="
854
    $ARCH_EXT_LIST
855
    $THREADS_LIST
856
    alsa_asoundlib_h
857
    altivec_h
858
    arpa_inet_h
859
    bswap
860
    closesocket
861
    cmov
862
    conio_h
863
    dcbzl
864
    dev_bktr_ioctl_bt848_h
865
    dev_bktr_ioctl_meteor_h
866
    dev_ic_bt8xx_h
867
    dev_video_meteor_ioctl_meteor_h
868
    dev_video_bktr_ioctl_bt848_h
869
    dlfcn_h
870
    dlopen
871
    dos_paths
872
    ebp_available
873
    ebx_available
874
    fast_64bit
875
    fast_cmov
876
    fast_unaligned
877
    fork
878
    gethrtime
879
    GetProcessTimes
880
    getrusage
881
    inet_aton
882
    inline_asm
883
    libdc1394_1
884
    libdc1394_2
885
    llrint
886
    lrint
887
    lrintf
888
    machine_ioctl_bt848_h
889
    machine_ioctl_meteor_h
890
    malloc_h
891
    memalign
892
    mkstemp
893
    pld
894
    posix_memalign
895
    ppc64
896
    round
897
    roundf
898
    sdl
899
    sdl_video_size
900
    setmode
901
    socklen_t
902
    soundcard_h
903
    poll_h
904
    sys_mman_h
905
    sys_resource_h
906
    sys_select_h
907
    sys_soundcard_h
908
    sys_videoio_h
909
    ten_operands
910
    termios_h
911
    threads
912
    truncf
913
    winsock2_h
914
    yasm
915
"
916

    
917
# options emitted with CONFIG_ prefix but not available on command line
918
CONFIG_EXTRA="
919
"
920

    
921
CMDLINE_SELECT="
922
    $ARCH_EXT_LIST
923
    $CONFIG_LIST
924
    $THREADS_LIST
925
    cross_compile
926
    debug
927
    extra_warnings
928
    logging
929
    optimizations
930
    stripping
931
    yasm
932
"
933

    
934
PATHS_LIST='
935
    bindir
936
    datadir
937
    incdir
938
    libdir
939
    mandir
940
    prefix
941
    shlibdir
942
'
943

    
944
CMDLINE_SET="
945
    $PATHS_LIST
946
    arch
947
    as
948
    build_suffix
949
    cc
950
    cpu
951
    cross_prefix
952
    extra_version
953
    host_cc
954
    host_cflags
955
    host_ldflags
956
    host_libs
957
    host_os
958
    logfile
959
    nm
960
    source_path
961
    sysinclude
962
    sysroot
963
    target_exec
964
    target_os
965
    target_path
966
"
967

    
968
# code dependency declarations
969

    
970
# architecture extensions
971
altivec_deps="ppc"
972
amd3dnow_deps="mmx"
973
amd3dnowext_deps="amd3dnow"
974
armv5te_deps="arm"
975
armv6_deps="arm"
976
armv6t2_deps="arm"
977
armvfp_deps="arm"
978
iwmmxt_deps="arm"
979
mmi_deps="mips"
980
mmx_deps="x86"
981
mmx2_deps="mmx"
982
neon_deps="arm"
983
ppc4xx_deps="ppc"
984
sse_deps="mmx"
985
ssse3_deps="sse"
986
vis_deps="sparc"
987

    
988
# decoders / encoders
989
aac_decoder_select="fft mdct"
990
ac3_decoder_deps="gpl"
991
ac3_decoder_select="fft mdct"
992
atrac3_decoder_select="fft mdct"
993
cavs_decoder_select="golomb"
994
cook_decoder_select="fft mdct"
995
cscd_decoder_suggest="zlib"
996
dca_decoder_select="fft mdct"
997
dnxhd_encoder_select="aandct"
998
dxa_decoder_select="zlib"
999
eac3_decoder_deps="gpl"
1000
eac3_decoder_select="fft mdct"
1001
eatgq_decoder_select="aandct"
1002
eatqi_decoder_select="aandct"
1003
ffv1_decoder_select="golomb"
1004
flac_decoder_select="golomb"
1005
flac_encoder_select="golomb"
1006
flashsv_decoder_select="zlib"
1007
flashsv_encoder_select="zlib"
1008
flv_encoder_select="aandct"
1009
h261_encoder_select="aandct"
1010
h263_encoder_select="aandct"
1011
h263p_encoder_select="aandct"
1012
h264_decoder_select="golomb"
1013
h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1014
imc_decoder_select="fft mdct"
1015
jpegls_decoder_select="golomb"
1016
jpegls_encoder_select="golomb"
1017
ljpeg_encoder_select="aandct"
1018
loco_decoder_select="golomb"
1019
mjpeg_encoder_select="aandct"
1020
mpeg1video_encoder_select="aandct"
1021
mpeg2video_encoder_select="aandct"
1022
mpeg4_encoder_select="aandct"
1023
mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1024
mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1025
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1026
msmpeg4v1_encoder_select="aandct"
1027
msmpeg4v2_encoder_select="aandct"
1028
msmpeg4v3_encoder_select="aandct"
1029
nellymoser_decoder_select="fft mdct"
1030
nellymoser_encoder_select="fft mdct"
1031
png_decoder_select="zlib"
1032
png_encoder_select="zlib"
1033
qdm2_decoder_select="fft mdct rdft"
1034
rv10_encoder_select="aandct"
1035
rv20_encoder_select="aandct"
1036
rv30_decoder_select="golomb"
1037
rv40_decoder_select="golomb"
1038
shorten_decoder_select="golomb"
1039
sonic_decoder_select="golomb"
1040
sonic_encoder_select="golomb"
1041
sonic_ls_encoder_select="golomb"
1042
svq3_decoder_select="golomb"
1043
svq3_decoder_suggest="zlib"
1044
tiff_decoder_suggest="zlib"
1045
tiff_encoder_suggest="zlib"
1046
tscc_decoder_select="zlib"
1047
vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1048
vorbis_decoder_select="fft mdct"
1049
vorbis_encoder_select="fft mdct"
1050
wmav1_decoder_select="fft mdct"
1051
wmav1_encoder_select="fft mdct"
1052
wmav2_decoder_select="fft mdct"
1053
wmav2_encoder_select="fft mdct"
1054
wmv1_encoder_select="aandct"
1055
wmv2_encoder_select="aandct"
1056
wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1057
zlib_decoder_select="zlib"
1058
zlib_encoder_select="zlib"
1059
zmbv_decoder_select="zlib"
1060
zmbv_encoder_select="zlib"
1061

    
1062
# external libraries
1063
libamr_nb_decoder_deps="libamr_nb"
1064
libamr_nb_encoder_deps="libamr_nb"
1065
libamr_wb_decoder_deps="libamr_wb"
1066
libamr_wb_encoder_deps="libamr_wb"
1067
libdirac_decoder_deps="libdirac !libschroedinger"
1068
libdirac_encoder_deps="libdirac"
1069
libfaac_encoder_deps="libfaac"
1070
libfaad_decoder_deps="libfaad"
1071
libfaadbin_decoder_extralibs='$ldl'
1072
libgsm_decoder_deps="libgsm"
1073
libgsm_encoder_deps="libgsm"
1074
libgsm_ms_decoder_deps="libgsm"
1075
libgsm_ms_encoder_deps="libgsm"
1076
libmp3lame_encoder_deps="libmp3lame"
1077
libopenjpeg_decoder_deps="libopenjpeg"
1078
libschroedinger_decoder_deps="libschroedinger"
1079
libschroedinger_encoder_deps="libschroedinger"
1080
libspeex_decoder_deps="libspeex"
1081
libtheora_encoder_deps="libtheora"
1082
libvorbis_encoder_deps="libvorbis"
1083
libx264_encoder_deps="libx264"
1084
libxvid_encoder_deps="libxvid"
1085

    
1086
# demuxers / muxers
1087
ac3_demuxer_deps="ac3_parser"
1088
alsa_demuxer_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1089
alsa_demuxer_extralibs="-lasound"
1090
alsa_muxer_deps="alsa_asoundlib_h"
1091
alsa_muxer_extralibs="-lasound"
1092
audio_beos_demuxer_deps="audio_beos"
1093
audio_beos_demuxer_extralibs="-lmedia -lbe"
1094
audio_beos_muxer_deps="audio_beos"
1095
audio_beos_muxer_extralibs="-lmedia -lbe"
1096
avisynth_demuxer_deps="avisynth"
1097
bktr_demuxer_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1098
dirac_demuxer_deps="dirac_parser"
1099
dv1394_demuxer_deps="dv1394 dv_demuxer"
1100
libdc1394_demuxer_deps="libdc1394"
1101
libnut_demuxer_deps="libnut"
1102
libnut_muxer_deps="libnut"
1103
matroska_demuxer_suggest="zlib bzlib"
1104
mov_demuxer_suggest="zlib"
1105
mp3_demuxer_deps="mpegaudio_parser"
1106
oss_demuxer_deps_any="soundcard_h sys_soundcard_h"
1107
oss_muxer_deps_any="soundcard_h sys_soundcard_h"
1108
redir_demuxer_deps="network"
1109
rtp_muxer_deps="network rtp_protocol"
1110
rtsp_demuxer_deps="sdp_demuxer"
1111
sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1112
v4l_demuxer_deps="linux_videodev_h"
1113
v4l2_demuxer_deps_any="linux_videodev2_h sys_videoio_h"
1114
vfwcap_demuxer_deps="capCreateCaptureWindow"
1115
vfwcap_demuxer_extralibs="-lvfw32"
1116
x11_grab_device_demuxer_deps="x11grab XShmCreateImage"
1117
x11_grab_device_demuxer_extralibs="-lX11 -lXext"
1118

    
1119
# protocols
1120
gopher_protocol_deps="network"
1121
http_protocol_deps="network"
1122
rtp_protocol_deps="udp_protocol"
1123
tcp_protocol_deps="network"
1124
udp_protocol_deps="network"
1125

    
1126
# filters
1127
movie_filter_deps="avfilter_lavf"
1128

    
1129
# programs
1130
ffplay_deps="sdl"
1131
ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1132
ffserver_extralibs='$ldl'
1133

    
1134

    
1135
# default parameters
1136

    
1137
logfile="config.err"
1138

    
1139
# installation paths
1140
prefix_default="/usr/local"
1141
bindir_default='${prefix}/bin'
1142
datadir_default='${prefix}/share/ffmpeg'
1143
incdir_default='${prefix}/include'
1144
libdir_default='${prefix}/lib'
1145
mandir_default='${prefix}/share/man'
1146
shlibdir_default="$libdir_default"
1147

    
1148
# toolchain
1149
ar="ar"
1150
cc_default="gcc"
1151
host_cc_default="gcc"
1152
ln_s="ln -sf"
1153
nm_default="nm"
1154
objformat="elf"
1155
ranlib="ranlib"
1156
strip="strip"
1157
yasmexe="yasm"
1158

    
1159
# machine
1160
arch=$(uname -m)
1161
cpu="generic"
1162

    
1163
# OS
1164
target_os=$(tolower $(uname -s))
1165
host_os=$target_os
1166

    
1167
# configurable options
1168
enable debug
1169
enable fastdiv
1170
enable ffmpeg
1171
enable ffplay
1172
enable ffserver
1173
enable ipv6
1174
enable mpegaudio_hp
1175
enable network
1176
enable optimizations
1177
enable protocols
1178
enable static
1179
enable stripping
1180

    
1181
# build settings
1182
add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1183
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1184
FFSERVERLDFLAGS=-Wl,-E
1185
LIBPREF="lib"
1186
LIBSUF=".a"
1187
FULLNAME='$(NAME)$(BUILDSUF)'
1188
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1189
SLIBPREF="lib"
1190
SLIBSUF=".so"
1191
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1192
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1193
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1194
LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1195

    
1196
host_cflags='-O3 -g -Wall'
1197
host_libs='-lm'
1198

    
1199
target_path='.'
1200

    
1201
# gcc stupidly only outputs the basename of targets with -MM, but we need the
1202
# full relative path for objects in subdirectories for non-recursive Make.
1203
DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1204

    
1205
# find source path
1206
source_path="$(dirname "$0")"
1207
enable source_path_used
1208
if test -z "$source_path" -o "$source_path" = "." ; then
1209
    source_path="$(pwd)"
1210
    disable source_path_used
1211
else
1212
    source_path="$(cd "$source_path"; pwd)"
1213
    echo "$source_path" | grep -q '[[:blank:]]' &&
1214
        die "Out of tree builds are impossible with whitespace in source path."
1215
    test -e "$source_path/config.h" &&
1216
        die "Out of tree builds are impossible with config.h in source dir."
1217
fi
1218

    
1219
FFMPEG_CONFIGURATION="$@"
1220

    
1221
find_things(){
1222
    thing=$1
1223
    pattern=$2
1224
    file=$source_path/$3
1225
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1226
}
1227

    
1228
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1229
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1230
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1231
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1232
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1233
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1234
OUTDEV_LIST=$(find_things   muxer    _MUX     libavdevice/alldevices.c)
1235
INDEV_LIST=$(find_things    demuxer  DEMUX    libavdevice/alldevices.c)
1236
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1237
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1238

    
1239
enable $ARCH_EXT_LIST \
1240
       $DECODER_LIST \
1241
       $ENCODER_LIST \
1242
       $PARSER_LIST \
1243
       $BSF_LIST \
1244
       $DEMUXER_LIST \
1245
       $MUXER_LIST \
1246
       $FILTER_LIST \
1247
       $PROTOCOL_LIST \
1248
       $INDEV_LIST \
1249
       $OUTDEV_LIST \
1250

    
1251
die_unknown(){
1252
    echo "Unknown option \"$1\"."
1253
    echo "See $0 --help for available options."
1254
    exit 1
1255
}
1256

    
1257
show_list() {
1258
    suffix=_$1
1259
    shift
1260
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1261
    exit 0
1262
}
1263

    
1264
for opt do
1265
    optval="${opt#*=}"
1266
    case "$opt" in
1267
    --extra-cflags=*) add_cflags $optval
1268
    ;;
1269
    --extra-ldflags=*) add_ldflags $optval
1270
    ;;
1271
    --extra-libs=*) add_extralibs $optval
1272
    ;;
1273
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1274
    ;;
1275
    --enable-debug=*) debuglevel="$optval"
1276
    ;;
1277
    --enable-*=*|--disable-*=*)
1278
    eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1279
    case "$thing" in
1280
        encoder|decoder|muxer|demuxer|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1281
        *) die_unknown "$opt" ;;
1282
    esac
1283
    ;;
1284
    --enable-?*|--disable-?*)
1285
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1286
    if is_in $option $COMPONENT_LIST; then
1287
        eval $action \$$(toupper ${option%s})_LIST
1288
    elif is_in $option $CMDLINE_SELECT; then
1289
        $action $option
1290
    else
1291
        die_unknown $opt
1292
    fi
1293
    ;;
1294
    --list-*)
1295
        NAME="${opt#--list-}"
1296
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1297
        NAME=${NAME%s}
1298
        eval show_list $NAME \$$(toupper $NAME)_LIST
1299
    ;;
1300
    --help|-h) show_help
1301
    ;;
1302
    *)
1303
    optname="${opt%%=*}"
1304
    optname="${optname#--}"
1305
    optname=$(echo "$optname" | sed 's/-/_/g')
1306
    is_in $optname $CMDLINE_SET || die_unknown $opt
1307
    eval $optname='$optval'
1308
    ;;
1309
    esac
1310
done
1311

    
1312
disabled logging && logfile=/dev/null
1313

    
1314
echo "# $0 $@" > $logfile
1315
set >> $logfile
1316

    
1317
test -n "$cross_prefix" && enable cross_compile
1318

    
1319
ar="${cross_prefix}${ar}"
1320
cc_default="${cross_prefix}${cc_default}"
1321
nm_default="${cross_prefix}${nm_default}"
1322
ranlib="${cross_prefix}${ranlib}"
1323
strip="${cross_prefix}${strip}"
1324

    
1325
sysinclude_default="${sysroot}/usr/include"
1326

    
1327
set_default cc nm sysinclude
1328
as_default=$cc
1329
enabled cross_compile || host_cc_default=$cc
1330
set_default host_cc
1331

    
1332
exesuf() {
1333
    case $1 in
1334
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1335
    esac
1336
}
1337

    
1338
EXESUF=$(exesuf $target_os)
1339
HOSTEXESUF=$(exesuf $host_os)
1340

    
1341
# set temporary file name
1342
: ${TMPDIR:=$TEMPDIR}
1343
: ${TMPDIR:=$TMP}
1344
: ${TMPDIR:=/tmp}
1345

    
1346
if ! check_cmd type mktemp; then
1347
    # simple replacement for missing mktemp
1348
    # NOT SAFE FOR GENERAL USE
1349
    mktemp(){
1350
        echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1351
    }
1352
fi
1353

    
1354
tmpfile(){
1355
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1356
        (set -C; exec > $tmp) 2>/dev/null ||
1357
        die "Unable to create temoporary file in $TMPDIR."
1358
    append TMPFILES $tmp
1359
    eval $1=$tmp
1360
}
1361

    
1362
trap 'rm -f -- $TMPFILES' EXIT
1363
trap exit HUP INT TERM
1364

    
1365
tmpfile TMPC  .c
1366
tmpfile TMPE  $EXESUF
1367
tmpfile TMPH  .h
1368
tmpfile TMPO  .o
1369
tmpfile TMPS  .S
1370
tmpfile TMPSH .sh
1371

    
1372
unset -f mktemp
1373

    
1374
# make sure we can execute files in $TMPDIR
1375
cat > $TMPSH 2>> $logfile <<EOF
1376
#! /bin/sh
1377
EOF
1378
chmod +x $TMPSH >> $logfile 2>&1
1379
if ! $TMPSH >> $logfile 2>&1; then
1380
    cat <<EOF
1381
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1382
variable to another directory and make sure that it is not mounted noexec.
1383
EOF
1384
    die "Sanity test failed."
1385
fi
1386

    
1387
if   $cc --version 2>/dev/null | grep -qi gcc; then
1388
    cc_type=gcc
1389
elif $cc --version 2>/dev/null | grep -q Intel; then
1390
    cc_type=icc
1391
elif $cc -v 2>&1 | grep -q xlc; then
1392
    cc_type=xlc
1393
elif $cc -V 2>/dev/null | grep -q Compaq; then
1394
    cc_type=ccc
1395
    DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1396
    debuglevel=3
1397
    add_ldflags -Wl,-z,now # calls to libots crash without this
1398
elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1399
    test -d "$sysroot" || die "No valid sysroot specified."
1400
    cc_type=armcc
1401
    armcc_conf="$PWD/armcc.conf"
1402
    $cc --arm_linux_configure                 \
1403
        --arm_linux_config_file="$armcc_conf" \
1404
        --configure_sysroot="$sysroot"        \
1405
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1406
        die "Error creating armcc configuration file."
1407
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1408
    as_default="${cross_prefix}gcc"
1409
fi
1410

    
1411
test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1412

    
1413
set_default as
1414

    
1415
if test -n "$sysroot"; then
1416
    case "$cc_type" in
1417
        gcc)
1418
            add_cflags  --sysroot="$sysroot"
1419
            add_ldflags --sysroot="$sysroot"
1420
        ;;
1421
    esac
1422
fi
1423

    
1424
# compiler sanity check
1425
check_exec <<EOF
1426
int main(void){ return 0; }
1427
EOF
1428
if test "$?" != 0; then
1429
    echo "$cc is unable to create an executable file."
1430
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
1431
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1432
        echo "Only do this if you know what cross compiling means."
1433
    fi
1434
    die "C compiler test failed."
1435
fi
1436

    
1437
check_cflags -std=c99
1438
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1439
#include <stdlib.h>
1440
EOF
1441
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1442
#include <stdlib.h>
1443
EOF
1444

    
1445
case "$arch" in
1446
    alpha)
1447
        arch="alpha"
1448
        enable fast_64bit
1449
        check_cflags -mieee
1450
    ;;
1451
    arm|armv[4567]*l)
1452
        arch="arm"
1453
    ;;
1454
    avr32)
1455
    ;;
1456
    bfin)
1457
        arch="bfin"
1458
    ;;
1459
    ia64)
1460
        arch="ia64"
1461
        enable fast_64bit
1462
    ;;
1463
    m68k)
1464
        arch="m68k"
1465
    ;;
1466
    mips|mipsel|IP*)
1467
        arch="mips"
1468
    ;;
1469
    mips64)
1470
        arch="mips"
1471
        enable fast_64bit
1472
    ;;
1473
    parisc|hppa)
1474
        arch="parisc"
1475
    ;;
1476
    parisc64|hppa64)
1477
        arch="parisc"
1478
        enable fast_64bit
1479
    ;;
1480
    "Power Macintosh"|ppc|powerpc)
1481
        arch="ppc"
1482
        enable fast_unaligned
1483
    ;;
1484
    ppc64)
1485
        arch="ppc"
1486
        enable fast_64bit
1487
        enable fast_unaligned
1488
    ;;
1489
    s390|s390x)
1490
        arch="s390"
1491
    ;;
1492
    sh4|sh)
1493
        arch="sh4"
1494
    ;;
1495
    sparc)
1496
        arch="sparc"
1497
    ;;
1498
    sun4u|sparc64)
1499
        arch="sparc"
1500
        subarch="sparc64"
1501
        enable fast_64bit
1502
    ;;
1503
    i386|i486|i586|i686|i86pc|BePC)
1504
        arch="x86"
1505
        subarch="x86_32"
1506
        enable fast_unaligned
1507
    ;;
1508
    x86_64|amd64)
1509
        arch="x86"
1510
        subarch="x86_32"
1511
        enable cmov
1512
        enable fast_cmov
1513
        enable fast_unaligned
1514
        check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1515
        int test[sizeof(char*) - 7];
1516
EOF
1517
    ;;
1518
    *)
1519
        arch="unknown"
1520
    ;;
1521
esac
1522

    
1523
enable $arch $subarch
1524

    
1525
# OS specific
1526
case $target_os in
1527
    beos|haiku|zeta)
1528
        prefix_default="$HOME/config"
1529
        # helps building libavcodec
1530
        add_cflags -DPIC -fomit-frame-pointer
1531
        # 3 gcc releases known for BeOS, each with ugly bugs
1532
        gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1533
        case "$gcc_version" in
1534
          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1535
            disable mmx
1536
            ;;
1537
          *20010315*) echo "BeBits gcc"
1538
            add_cflags -fno-expensive-optimizations
1539
            ;;
1540
        esac
1541
        SHFLAGS=-nostart
1542
        # enable BeOS things
1543
        enable audio_beos
1544
        # no need for libm, but the inet stuff
1545
        # Check for BONE
1546
        # XXX: actually should check for NOT net_server
1547
        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1548
            network_extralibs="-lbind -lsocket"
1549
        else
1550
            enable beos_netserver
1551
            network_extralibs="-lnet"
1552
        fi ;;
1553
    sunos)
1554
        FFSERVERLDFLAGS=""
1555
        SHFLAGS='-shared -Wl,-h,$$(@F)'
1556
        network_extralibs="-lsocket -lnsl"
1557
        add_cflags -D__EXTENSIONS__
1558
        ;;
1559
    netbsd)
1560
        oss_demuxer_extralibs="-lossaudio"
1561
        oss_muxer_extralibs="-lossaudio"
1562
        ;;
1563
    openbsd)
1564
        disable need_memalign
1565
        LIBOBJFLAGS='$(PIC)'
1566
        SHFLAGS='-shared'
1567
        oss_demuxer_extralibs="-lossaudio"
1568
        oss_muxer_extralibs="-lossaudio"
1569
        ;;
1570
    freebsd)
1571
        disable need_memalign
1572
        ;;
1573
    bsd/os)
1574
        osextralibs="-lpoll -lgnugetopt"
1575
        strip="strip -d"
1576
        ;;
1577
    darwin)
1578
        disable need_memalign
1579
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1580
        strip="strip -x"
1581
        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1582
        SLIBSUF=".dylib"
1583
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1584
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1585
        FFSERVERLDFLAGS=-Wl,-bind_at_load
1586
        objformat="macho"
1587
        enabled x86_64 && objformat="macho64"
1588
        ;;
1589
    mingw32*)
1590
        target_os=mingw32
1591
        LIBTARGET=i386
1592
        if enabled x86_64; then
1593
            disable need_memalign
1594
            LIBTARGET=x64
1595
        fi
1596
        shlibdir_default="$bindir_default"
1597
        disable ffserver
1598
        SLIBPREF=""
1599
        SLIBSUF=".dll"
1600
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1601
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1602
        SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1603
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1604
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1605
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1606
        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1607
        objformat="win32"
1608
        enable dos_paths
1609
        if ! enabled x86_64; then
1610
            check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1611
                die "ERROR: MinGW runtime version must be >= 3.15."
1612
            enabled_any avisynth vfwcap_demuxer &&
1613
                { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1614
                  die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1615
            fi
1616
        ;;
1617
    cygwin*)
1618
        target_os=cygwin
1619
        shlibdir_default="$bindir_default"
1620
        SLIBPREF="cyg"
1621
        SLIBSUF=".dll"
1622
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1623
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1624
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
1625
        objformat="win32"
1626
        enable dos_paths
1627
        ;;
1628
    *-dos|freedos|opendos)
1629
        disable ffplay ffserver
1630
        disable $INDEV_LIST $OUTDEV_LIST
1631
        network_extralibs="-lsocket"
1632
        objformat="coff"
1633
        enable dos_paths
1634
        ;;
1635
    linux)
1636
        enable dv1394
1637
        ;;
1638
    irix*)
1639
        target_os=irix
1640
        ranlib="echo ignoring ranlib"
1641
        ;;
1642
    os/2*)
1643
        strip="lxlite"
1644
        ln_s="cp -f"
1645
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1646
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1647
        FFSERVERLDFLAGS=""
1648
        LIBSUF="_s.a"
1649
        SLIBPREF=""
1650
        SLIBSUF=".dll"
1651
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1652
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1653
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1654
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1655
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1656
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1657
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1658
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1659
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1660
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1661
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1662
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1663
        enable dos_paths
1664
        ;;
1665

    
1666
    *)
1667
        die "Unknown OS '$target_os'."
1668
        ;;
1669
esac
1670

    
1671
set_default $PATHS_LIST
1672

    
1673
add_extralibs $osextralibs
1674

    
1675
# Combine FFLDFLAGS and the LDFLAGS environment variable.
1676
LDFLAGS="$FFLDFLAGS $LDFLAGS"
1677

    
1678
# we need to build at least one lib type
1679
if ! enabled_any static shared; then
1680
    cat <<EOF
1681
At least one library type must be built.
1682
Specify --enable-static to build the static libraries or --enable-shared to
1683
build the shared libraries as well. To only build the shared libraries specify
1684
--disable-static in addition to --enable-shared.
1685
EOF
1686
    exit 1;
1687
fi
1688

    
1689
disabled static && LIBNAME=""
1690

    
1691
if enabled_any libfaad libfaadbin ; then
1692
    if check_header faad.h; then
1693
        check_cc <<EOF
1694
#include <faad.h>
1695
#ifndef FAAD2_VERSION
1696
ok faad1
1697
#endif
1698
int main(void) { return 0; }
1699
EOF
1700
        test $? = 0 && enable libfaad2
1701
    else
1702
        die "FAAD test failed."
1703
    fi
1704
fi
1705

    
1706

    
1707
if ! enabled gpl; then
1708
    die_gpl_disabled(){
1709
        name=$1
1710
        shift
1711
        enabled_any $@ && die "$name is under GPL and --enable-gpl is not specified."
1712
    }
1713
    die_gpl_disabled "The Postprocessing code" postproc
1714
    die_gpl_disabled "libx264"                 libx264
1715
    die_gpl_disabled "libxvidcore"             libxvid
1716
    die_gpl_disabled "FAAD2"                   libfaad2
1717
    die_gpl_disabled "The X11 grabber"         x11grab
1718
fi
1719

    
1720
if ! enabled nonfree && enabled_any libamr_nb libamr_wb; then
1721
    die "libamr is nonfree and --enable-nonfree is not specified."
1722
fi
1723

    
1724
check_deps $ARCH_EXT_LIST
1725

    
1726
test -z "$need_memalign" && need_memalign="$mmx"
1727

    
1728
#Darwin CC versions
1729
if test $target_os = darwin; then
1730
    if enabled xlc; then
1731
        add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1732
    else
1733
        add_cflags -pipe
1734
        check_cflags -force_cpusubtype_ALL
1735
        check_cflags -Wno-sign-compare
1736
        enabled shared || check_cflags -mdynamic-no-pic
1737
    fi
1738
fi
1739

    
1740
disabled optimizations || check_cflags -fomit-frame-pointer
1741

    
1742
# Add processor-specific flags
1743
if test $cpu != "generic"; then
1744
    warn_altivec(){
1745
        $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1746
    }
1747
    case $cpu in
1748
        601|ppc601|PowerPC601)
1749
            add_cflags -mcpu=601
1750
            warn_altivec enabled PPC601
1751
        ;;
1752
        603*|ppc603*|PowerPC603*)
1753
            add_cflags -mcpu=603
1754
            warn_altivec enabled PPC603
1755
        ;;
1756
        604*|ppc604*|PowerPC604*)
1757
            add_cflags -mcpu=604
1758
            warn_altivec enabled PPC604
1759
        ;;
1760
        G3|g3|75*|ppc75*|PowerPC75*)
1761
            add_cflags -mcpu=750 -mpowerpc-gfxopt
1762
            warn_altivec enabled PPC75x
1763
        ;;
1764
        G4|g4|745*|ppc745*|PowerPC745*)
1765
            add_cflags -mcpu=7450 -mpowerpc-gfxopt
1766
            warn_altivec disabled PPC745x
1767
        ;;
1768
        74*|ppc74*|PowerPC74*)
1769
            add_cflags -mcpu=7400 -mpowerpc-gfxopt
1770
            warn_altivec disabled PPC74xx
1771
        ;;
1772
        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1773
            add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1774
            warn_altivec disabled PPC970
1775
            enable ppc64
1776
        ;;
1777
        Cell|CELL|cell)
1778
            add_cflags -mcpu=cell
1779
            warn_altivec disabled Cell
1780
            enable ppc64
1781
        ;;
1782
        # targets that do NOT support conditional mov (cmov)
1783
        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1784
            add_cflags -march=$cpu
1785
            disable cmov
1786
        ;;
1787
        # targets that do support conditional mov (cmov)
1788
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1789
            add_cflags -march=$cpu
1790
            enable cmov
1791
            enable fast_cmov
1792
        ;;
1793
        # targets that do support conditional mov but on which it's slow
1794
        pentium4|pentium4m|prescott|nocona)
1795
            add_cflags -march=$cpu
1796
            enable cmov
1797
            disable fast_cmov
1798
        ;;
1799
        sparc64)
1800
            add_cflags -mcpu=v9
1801
        ;;
1802
        arm11*|cortex*)
1803
            add_cflags -mcpu=$cpu
1804
            enable fast_unaligned
1805
        ;;
1806
        armv*)
1807
            add_cflags -march=$cpu
1808
        ;;
1809
        arm*)
1810
            add_cflags -mcpu=$cpu
1811
        ;;
1812
        ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1813
            enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1814
        ;;
1815
        *)
1816
            echo "WARNING: Unknown CPU \"$cpu\", ignored."
1817
        ;;
1818
    esac
1819
fi
1820

    
1821
check_cc <<EOF || die "Symbol mangling check failed."
1822
int ff_extern;
1823
EOF
1824
sym=$($nm -P -g $TMPO | grep ff_extern)
1825
extern_prefix=${sym%%ff_extern*}
1826

    
1827
check_cc <<EOF && enable inline_asm
1828
void foo(void) { __asm__ volatile ("" ::); }
1829
EOF
1830

    
1831
if enabled x86; then
1832
    # check whether EBP is available on x86
1833
    # As 'i' is stored on the stack, this program will crash
1834
    # if the base pointer is used to access it because the
1835
    # base pointer is cleared in the inline assembly code.
1836
    check_exec_crash <<EOF && enable ebp_available
1837
    volatile int i=0;
1838
    __asm__ volatile (
1839
        "xorl %%ebp, %%ebp"
1840
    ::: "%ebp");
1841
    return i;
1842
EOF
1843

    
1844
    # check wether EBX is available on x86
1845
    check_asm ebx_available '"":::"%ebx"'
1846

    
1847
    # check whether more than 10 operands are supported
1848
    check_cc <<EOF && enable ten_operands
1849
int main(void) {
1850
    int x=0;
1851
    __asm__ volatile(
1852
        ""
1853
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1854
    );
1855
    return 0;
1856
}
1857
EOF
1858

    
1859
    # check whether binutils is new enough to compile SSSE3/MMX2
1860
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1861
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1862

    
1863
    check_asm bswap '"bswap %%eax" ::: "%eax"'
1864

    
1865
    YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1866
    enabled     x86_64        && append YASMFLAGS "-m amd64"
1867
    enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1868
    case "$objformat" in
1869
        elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1870
        macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1871
        *)                    append YASMFLAGS "-DPREFIX"  ;;
1872
    esac
1873
    disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1874
fi
1875

    
1876
# check for assembler specific support
1877

    
1878
enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1879
enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1880

    
1881
# check for SIMD availability
1882

    
1883
# AltiVec flags: The FSF version of GCC differs from the Apple version
1884
if enabled altivec; then
1885
    check_cflags -maltivec -mabi=altivec &&
1886
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1887
        check_cflags -faltivec
1888

    
1889
    # check if our compiler supports Motorola AltiVec C API
1890
    check_cc <<EOF || disable altivec
1891
$inc_altivec_h
1892
int main(void) {
1893
    vector signed int v1, v2, v3;
1894
    v1 = vec_add(v2,v3);
1895
    return 0;
1896
}
1897
EOF
1898

    
1899
    # check if our compiler supports braces for vector declarations
1900
    check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1901
$inc_altivec_h
1902
int main (void) { (vector int) {1}; return 0; }
1903
EOF
1904
fi
1905

    
1906
# We have to check if pld is a nop and disable it.
1907
enabled arm     && check_asm pld     '"pld [r0]"'
1908
enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1909
enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1910
enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1911
enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1912
enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1913
enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1914
enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1915
enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
1916

    
1917
enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
1918

    
1919
# ---
1920
# big/little-endian test
1921
check_cc <<EOF || die "endian test failed"
1922
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
1923
EOF
1924
od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
1925

    
1926
# ---
1927
# check availability of some header files
1928

    
1929
if check_func dlopen; then
1930
    ldl=
1931
elif check_func dlopen -ldl; then
1932
    ldl=-ldl
1933
fi
1934

    
1935
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
1936
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
1937

    
1938
check_func  fork
1939
check_func  gethrtime
1940
check_func  getrusage
1941
check_func  inet_aton $network_extralibs
1942
check_func  memalign
1943
check_func  mkstemp
1944
check_func  posix_memalign
1945
check_func_headers io.h setmode
1946
check_func_headers windows.h GetProcessTimes
1947

    
1948
check_header conio.h
1949
check_header dlfcn.h
1950
check_header malloc.h
1951
check_header poll.h
1952
check_header sys/mman.h
1953
check_header sys/resource.h
1954
check_header sys/select.h
1955
check_header termios.h
1956
check_header vdpau/vdpau.h
1957
check_header vdpau/vdpau_x11.h
1958
check_header X11/extensions/XvMClib.h
1959

    
1960
if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
1961
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
1962
fi
1963

    
1964
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
1965
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
1966

    
1967
# check for some common methods of building with pthread support
1968
# do this before the optional library checks as some of them require pthreads
1969
if enabled pthreads; then
1970
    if check_func pthread_create; then
1971
        :
1972
    elif check_func pthread_create -pthread; then
1973
        add_cflags -pthread
1974
        add_extralibs -pthread
1975
    elif check_func pthread_create -pthreads; then
1976
        add_cflags -pthreads
1977
        add_extralibs -pthreads
1978
    elif check_func pthread_create -lpthreadGC2; then
1979
        add_extralibs -lpthreadGC2
1980
    elif ! check_lib pthread.h pthread_create -lpthread; then
1981
        die "ERROR: can't find pthreads library"
1982
    fi
1983
fi
1984

    
1985
for thread in $THREADS_LIST; do
1986
    if enabled $thread; then
1987
        test -n "$thread_type" &&
1988
            die "ERROR: Only one thread type must be selected." ||
1989
            thread_type="$thread"
1990
    fi
1991
done
1992

    
1993
check_lib math.h sin -lm
1994

    
1995
# test for C99 functions in math.h
1996
for func in llrint lrint lrintf round roundf truncf; do
1997
    check_exec <<EOF && enable $func || disable $func
1998
#include <math.h>
1999
int main(void) { return ($func(3.999f) > 0)?0:1; }
2000
EOF
2001
done
2002

    
2003
# these are off by default, so fail if requested and not available
2004
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2005
enabled libamr_nb  && require  libamrnb amrnb/interf_dec.h Speech_Decode_Frame_init -lamrnb -lm
2006
enabled libamr_wb  && require  libamrwb amrwb/dec_if.h D_IF_init -lamrwb -lm
2007
enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2008
                      require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2009
                      require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2010
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2011
enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2012
enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2013
enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2014
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2015
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2016
enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2017
                           require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2018
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2019
enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2020
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2021
enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2022
                      { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2023
                        die "ERROR: libx264 version must be >= 0.65."; }
2024
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2025
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2026

    
2027
# libdc1394 check
2028
if enabled libdc1394; then
2029
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2030
        enable libdc1394_2; } ||
2031
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2032
        enable libdc1394_1; } ||
2033
    die "ERROR: No version of libdc1394 found "
2034
fi
2035

    
2036

    
2037
_restrict=
2038
for restrict_keyword in restrict __restrict__ __restrict; do
2039
    check_cc <<EOF && _restrict=$restrict_keyword && break
2040
void foo(char * $restrict_keyword p);
2041
EOF
2042
done
2043

    
2044
##########################################
2045
# SDL check
2046

    
2047
disable sdl_too_old
2048
disable sdl
2049
SDL_CONFIG="${cross_prefix}sdl-config"
2050
if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2051
    sdl_cflags=$("${SDL_CONFIG}" --cflags)
2052
    temp_cflags $sdl_cflags
2053
    temp_extralibs $("${SDL_CONFIG}" --libs)
2054
    if check_lib2 SDL.h SDL_Init; then
2055
        _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2056
        if test "$_sdlversion" -lt 121 ; then
2057
            enable sdl_too_old
2058
        else
2059
            enable sdl
2060
            check_cc $sdl_cflags <<EOF && enable sdl_video_size
2061
#include <SDL.h>
2062
int main(int argc, char **argv){
2063
    const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2064
    int w = vi->current_w;
2065
    return 0;
2066
}
2067
EOF
2068
        fi
2069
    fi
2070
    restore_flags
2071
fi
2072

    
2073
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2074

    
2075
##########################################
2076
# Network check
2077

    
2078
if enabled network; then
2079
    check_type "sys/types.h sys/socket.h" socklen_t
2080
    # Prefer arpa/inet.h over winsock2
2081
    if check_header arpa/inet.h ; then
2082
        check_func closesocket
2083
    elif check_header winsock2.h ; then
2084
        network_extralibs="-lws2_32"
2085
        check_type ws2tcpip.h socklen_t
2086
        check_func_headers winsock2.h closesocket
2087
    fi
2088
fi
2089

    
2090
##########################################
2091
# IPv6 check
2092

    
2093
enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2094
#include <sys/types.h>
2095
#include <sys/socket.h>
2096
#include <netinet/in.h>
2097
#include <netdb.h>
2098
int main(void) {
2099
    struct sockaddr_storage saddr;
2100
    struct ipv6_mreq mreq6;
2101
    getaddrinfo(0,0,0,0);
2102
    getnameinfo(0,0,0,0,0,0,0);
2103
    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2104
}
2105
EOF
2106

    
2107
check_header linux/videodev.h
2108
check_header linux/videodev2.h
2109
check_header sys/videoio.h
2110

    
2111
check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2112

    
2113
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2114
{ check_header dev/bktr/ioctl_meteor.h &&
2115
  check_header dev/bktr/ioctl_bt848.h; } ||
2116
{ check_header machine/ioctl_meteor.h &&
2117
  check_header machine/ioctl_bt848.h; } ||
2118
{ check_header dev/video/meteor/ioctl_meteor.h &&
2119
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2120
check_header dev/ic/bt8xx.h
2121

    
2122
check_header sys/soundcard.h
2123
check_header soundcard.h
2124

    
2125
check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2126

    
2127
# deal with the X11 frame grabber
2128
enabled x11grab                         &&
2129
check_header X11/Xlib.h                 &&
2130
check_header X11/extensions/XShm.h      &&
2131
check_func XOpenDisplay -lX11           &&
2132
check_func XShmCreateImage -lX11 -lXext
2133

    
2134
enabled debug && add_cflags -g"$debuglevel"
2135

    
2136
# add some useful compiler flags if supported
2137
check_cflags -Wdeclaration-after-statement
2138
check_cflags -Wall
2139
check_cflags -Wno-switch
2140
check_cflags -Wdisabled-optimization
2141
check_cflags -Wpointer-arith
2142
check_cflags -Wredundant-decls
2143
check_cflags -Wno-pointer-sign
2144
check_cflags -Wcast-qual
2145
check_cflags -Wwrite-strings
2146
check_cflags -Wtype-limits
2147
check_cflags -Wundef
2148
enabled extra_warnings && check_cflags -Winline
2149

    
2150
# add some linker flags
2151
check_ldflags -Wl,--warn-common
2152
check_ldflags -Wl,--as-needed
2153
check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2154
check_ldflags -Wl,-Bsymbolic
2155

    
2156
if enabled small; then
2157
    check_cflags -Os            # not all compilers support -Os
2158
    optimizations="small"
2159
elif enabled optimizations; then
2160
    if enabled xlc; then
2161
        add_cflags  -O5
2162
        add_ldflags -O5
2163
    elif enabled ccc; then
2164
        add_cflags -fast
2165
    else
2166
        add_cflags -O3
2167
    fi
2168
fi
2169
check_cflags -fno-math-errno
2170
check_cflags -fno-signed-zeros
2171

    
2172
# add some flags for Intel C Compiler
2173
if enabled icc; then
2174
    # Just warnings, no remarks
2175
    check_cflags -w1
2176
    # -wd: Disable following warnings
2177
    # 144, 167, 556: -Wno-pointer-sign
2178
    # 10006: ignoring unknown option -fno-signed-zeros
2179
    # 10156: ignoring option '-W'; no argument required
2180
    check_cflags -wd144,167,556,10006,10156
2181
    # 11030: Warning unknown option --as-needed
2182
    # 10156: ignoring option '-export'; no argument required
2183
    check_ldflags -wd10156,11030
2184
    # Allow to compile with optimizations
2185
    check_ldflags -march=$cpu
2186
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2187
    enable ebp_available
2188
elif enabled ccc; then
2189
    # disable some annoying warnings
2190
    add_cflags -msg_disable cvtu32to64
2191
    add_cflags -msg_disable embedcomment
2192
    add_cflags -msg_disable needconstext
2193
    add_cflags -msg_disable nomainieee
2194
    add_cflags -msg_disable ptrmismatch1
2195
    add_cflags -msg_disable unreachcode
2196
fi
2197

    
2198
# PIC flags for shared library objects where they are needed
2199
if enabled shared; then
2200
    # LIBOBJFLAGS may have already been set in the OS configuration
2201
    if test -z "$LIBOBJFLAGS" ; then
2202
        case "${subarch-$arch}" in
2203
            x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2204
        esac
2205
    fi
2206
fi
2207

    
2208
if enabled gprof; then
2209
    add_cflags  -p
2210
    add_ldflags -p
2211
fi
2212

    
2213
# Find out if the .align argument is a power of two or not.
2214
check_asm asmalign_pot '".align 3"'
2215

    
2216
enabled_any $DECODER_LIST      && enable decoders
2217
enabled_any $ENCODER_LIST      && enable encoders
2218
enabled_any $BSF_LIST          && enable bsfs
2219
enabled_any $DEMUXER_LIST      && enable demuxers
2220
enabled_any $MUXER_LIST        && enable muxers
2221
enabled_any $FILTER_LIST       && enable filters
2222
enabled_any $INDEV_LIST        && enable demuxers
2223
enabled_any $OUTDEV_LIST       && enable muxers
2224
enabled_any $PROTOCOL_LIST     && enable protocols
2225

    
2226
enabled_any $THREADS_LIST      && enable threads
2227

    
2228
check_deps $CONFIG_LIST       \
2229
           $CONFIG_EXTRA      \
2230
           $HAVE_LIST         \
2231
           $DECODER_LIST      \
2232
           $ENCODER_LIST      \
2233
           $PARSER_LIST       \
2234
           $BSF_LIST          \
2235
           $DEMUXER_LIST      \
2236
           $MUXER_LIST        \
2237
           $FILTER_LIST       \
2238
           $INDEV_LIST        \
2239
           $OUTDEV_LIST       \
2240
           $PROTOCOL_LIST     \
2241

    
2242
echo "install prefix            $prefix"
2243
echo "source path               $source_path"
2244
echo "C compiler                $cc"
2245
echo ".align is power-of-two    $asmalign_pot"
2246
echo "ARCH                      $arch ($cpu)"
2247
if test "$build_suffix" != ""; then
2248
    echo "build suffix              $build_suffix"
2249
fi
2250
if test "$extra_version" != ""; then
2251
    echo "version string suffix     $extra_version"
2252
fi
2253
echo "big-endian                ${bigendian-no}"
2254
if enabled x86; then
2255
    echo "yasm                      ${yasm-no}"
2256
    echo "MMX enabled               ${mmx-no}"
2257
    echo "MMX2 enabled              ${mmx2-no}"
2258
    echo "3DNow! enabled            ${amd3dnow-no}"
2259
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
2260
    echo "SSE enabled               ${sse-no}"
2261
    echo "SSSE3 enabled             ${ssse3-no}"
2262
    echo "CMOV enabled              ${cmov-no}"
2263
    echo "CMOV is fast              ${fast_cmov-no}"
2264
    echo "EBX available             ${ebx_available-no}"
2265
    echo "EBP available             ${ebp_available-no}"
2266
    echo "10 operands supported     ${ten_operands-no}"
2267
fi
2268
if enabled arm; then
2269
    echo "ARMv5TE enabled           ${armv5te-no}"
2270
    echo "ARMv6 enabled             ${armv6-no}"
2271
    echo "ARMv6T2 enabled           ${armv6t2-no}"
2272
    echo "ARM VFP enabled           ${armvfp-no}"
2273
    echo "IWMMXT enabled            ${iwmmxt-no}"
2274
    echo "NEON enabled              ${neon-no}"
2275
fi
2276
if enabled mips; then
2277
    echo "MMI enabled               ${mmi-no}"
2278
fi
2279
if enabled ppc; then
2280
    echo "AltiVec enabled           ${altivec-no}"
2281
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
2282
    echo "dcbzl available           ${dcbzl-no}"
2283
    echo "performance report        ${powerpc_perf-no}"
2284
fi
2285
if enabled sparc; then
2286
    echo "VIS enabled               ${vis-no}"
2287
fi
2288
echo "gprof enabled             ${gprof-no}"
2289
echo "debug symbols             ${debug-no}"
2290
echo "strip symbols             ${stripping-no}"
2291
echo "optimizations             ${optimizations-no}"
2292
echo "static                    ${static-no}"
2293
echo "shared                    ${shared-no}"
2294
echo "postprocessing support    ${postproc-no}"
2295
echo "new filter support        ${avfilter-no}"
2296
echo "filters using lavformat   ${avfilter_lavf-no}"
2297
echo "network support           ${network-no}"
2298
if enabled network; then
2299
    echo "IPv6 support              ${ipv6-no}"
2300
fi
2301
echo "threading support         ${thread_type-no}"
2302
echo "SDL support               ${sdl-no}"
2303
if enabled sdl_too_old; then
2304
    echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2305
fi
2306
echo "Sun medialib support      ${mlib-no}"
2307
echo "AVISynth enabled          ${avisynth-no}"
2308
echo "libamr-nb support         ${libamr_nb-no}"
2309
echo "libamr-wb support         ${libamr_wb-no}"
2310
echo "libdc1394 support         ${libdc1394-no}"
2311
echo "libdirac enabled          ${libdirac-no}"
2312
echo "libfaac enabled           ${libfaac-no}"
2313
echo "libfaad enabled           ${libfaad-no}"
2314
echo "libfaad dlopened          ${libfaadbin-no}"
2315
echo "libgsm enabled            ${libgsm-no}"
2316
echo "libmp3lame enabled        ${libmp3lame-no}"
2317
echo "libnut enabled            ${libnut-no}"
2318
echo "libopenjpeg enabled       ${libopenjpeg-no}"
2319
echo "libschroedinger enabled   ${libschroedinger-no}"
2320
echo "libspeex enabled          ${libspeex-no}"
2321
echo "libtheora enabled         ${libtheora-no}"
2322
echo "libvorbis enabled         ${libvorbis-no}"
2323
echo "libx264 enabled           ${libx264-no}"
2324
echo "libxvid enabled           ${libxvid-no}"
2325
echo "zlib enabled              ${zlib-no}"
2326
echo "bzlib enabled             ${bzlib-no}"
2327
echo
2328

    
2329
for type in decoder encoder parser demuxer muxer protocol filter bsf indev outdev; do
2330
    echo "Enabled ${type}s:"
2331
    eval list=\$$(toupper $type)_LIST
2332
    for part in $list; do
2333
        enabled $part && echo ${part%_*}
2334
    done | sort | pr -3 -t
2335
    echo
2336
done
2337

    
2338
license="LGPL"
2339
if enabled nonfree; then
2340
    license="unredistributable"
2341
elif enabled gpl; then
2342
    license="GPL"
2343
fi
2344

    
2345
echo "License: $license"
2346

    
2347
echo "Creating config.mak and config.h..."
2348

    
2349
echo "# Automatically generated by configure - do not modify!" > config.mak
2350
echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2351
echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2352
echo "#define FFMPEG_CONFIG_H" >> $TMPH
2353
echo "#define FFMPEG_CONFIGURATION \"$FFMPEG_CONFIGURATION\"" >> $TMPH
2354
echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2355

    
2356
echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2357
echo "prefix=$prefix" >> config.mak
2358
echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2359
echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2360
echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2361
echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2362
echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2363
echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2364
echo "CC=$cc" >> config.mak
2365
echo "AS=$as" >> config.mak
2366
echo "YASM=$yasmexe" >> config.mak
2367
echo "AR=$ar" >> config.mak
2368
echo "RANLIB=$ranlib" >> config.mak
2369
echo "LN_S=$ln_s" >> config.mak
2370
enabled stripping &&
2371
    echo "STRIP=$strip" >> config.mak ||
2372
    echo "STRIP=echo ignoring strip" >> config.mak
2373

    
2374
echo "OPTFLAGS=$CFLAGS" >> config.mak
2375
echo "LDFLAGS=$LDFLAGS" >> config.mak
2376
echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2377
echo "SHFLAGS=$SHFLAGS" >> config.mak
2378
echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2379
echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2380
echo "BUILD_STATIC=$static" >> config.mak
2381
echo "BUILDSUF=$build_suffix" >> config.mak
2382
echo "FULLNAME=$FULLNAME" >> config.mak
2383
echo "LIBPREF=$LIBPREF" >> config.mak
2384
echo "LIBSUF=$LIBSUF" >> config.mak
2385
echo "LIBNAME=$LIBNAME" >> config.mak
2386
echo "SLIBPREF=$SLIBPREF" >> config.mak
2387
echo "SLIBSUF=$SLIBSUF" >> config.mak
2388
echo "EXESUF=$EXESUF" >> config.mak
2389
echo "EXTRA_VERSION=$extra_version" >> config.mak
2390
echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2391
echo "HOSTCC=$host_cc" >> config.mak
2392
echo "HOSTCFLAGS=$host_cflags" >> config.mak
2393
echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2394
echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2395
echo "HOSTLIBS=$host_libs" >> config.mak
2396
echo "TARGET_EXEC=$target_exec" >> config.mak
2397
echo "TARGET_PATH=$target_path" >> config.mak
2398

    
2399
if enabled bigendian; then
2400
    echo "WORDS_BIGENDIAN=yes" >> config.mak
2401
    echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2402
fi
2403

    
2404
if enabled sdl; then
2405
    echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2406
    echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2407
fi
2408
if enabled texi2html; then
2409
    echo "BUILD_DOC=yes" >> config.mak
2410
fi
2411

    
2412
get_version(){
2413
    name=$1
2414
    file=$source_path/$2
2415
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2416
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2417
    lcname=$(tolower $name)
2418
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2419
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2420
}
2421

    
2422
get_version LIBSWSCALE  libswscale/swscale.h
2423
get_version LIBPOSTPROC libpostproc/postprocess.h
2424
get_version LIBAVCODEC  libavcodec/avcodec.h
2425
get_version LIBAVDEVICE libavdevice/avdevice.h
2426
get_version LIBAVFORMAT libavformat/avformat.h
2427
get_version LIBAVUTIL   libavutil/avutil.h
2428
get_version LIBAVFILTER libavfilter/avfilter.h
2429

    
2430
if enabled shared; then
2431
    echo "BUILD_SHARED=yes" >> config.mak
2432
    echo "PIC=-fPIC -DPIC" >> config.mak
2433
    echo "LIBTARGET=${LIBTARGET}" >> config.mak
2434
    echo "SLIBNAME=${SLIBNAME}" >> config.mak
2435
    echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2436
    echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2437
    echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2438
    echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2439
    echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2440
    echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2441
fi
2442
echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2443
echo "EXTRALIBS=$extralibs" >> config.mak
2444

    
2445
echo "ARCH=$arch" >> config.mak
2446

    
2447
print_config ARCH_   $TMPH config.mak $ARCH_LIST
2448
print_config HAVE_   $TMPH config.mak $HAVE_LIST
2449
print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2450
                                      $CONFIG_EXTRA      \
2451
                                      $DECODER_LIST      \
2452
                                      $ENCODER_LIST      \
2453
                                      $PARSER_LIST       \
2454
                                      $BSF_LIST          \
2455
                                      $DEMUXER_LIST      \
2456
                                      $MUXER_LIST        \
2457
                                      $FILTER_LIST       \
2458
                                      $PROTOCOL_LIST     \
2459
                                      $INDEV_LIST        \
2460
                                      $OUTDEV_LIST       \
2461

    
2462
echo "#define restrict $_restrict" >> $TMPH
2463

    
2464
if enabled small; then
2465
    echo "#define av_always_inline"  >> $TMPH
2466
fi
2467

    
2468
echo "SRC_PATH=\"$source_path\"" >> config.mak
2469
echo "SRC_PATH_BARE=$source_path" >> config.mak
2470
echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2471

    
2472
# Apparently it's not possible to portably echo a backslash.
2473
enabled asmalign_pot &&
2474
    printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2475
    printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2476

    
2477
echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2478

    
2479
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2480

    
2481
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2482
cmp -s $TMPH config.h &&
2483
    echo "config.h is unchanged" ||
2484
    mv -f $TMPH config.h
2485

    
2486
# build tree in object directory if source path is different from current one
2487
if enabled source_path_used; then
2488
    DIRS="\
2489
        doc               \
2490
        libavcodec        \
2491
        libavcodec/alpha  \
2492
        libavcodec/arm    \
2493
        libavcodec/bfin   \
2494
        libavcodec/mlib   \
2495
        libavcodec/ppc    \
2496
        libavcodec/sh4    \
2497
        libavcodec/sparc  \
2498
        libavcodec/x86    \
2499
        libavdevice       \
2500
        libavfilter       \
2501
        libavformat       \
2502
        libavutil         \
2503
        libpostproc       \
2504
        libswscale        \
2505
        tests             \
2506
        tools             \
2507
        "
2508
    FILES="\
2509
        Makefile             \
2510
        common.mak           \
2511
        subdir.mak           \
2512
        doc/texi2pod.pl      \
2513
        libavcodec/Makefile  \
2514
        libavdevice/Makefile \
2515
        libavfilter/Makefile \
2516
        libavformat/Makefile \
2517
        libavutil/Makefile   \
2518
        libpostproc/Makefile \
2519
        libswscale/Makefile  \
2520
        "
2521
    for dir in $DIRS ; do
2522
        mkdir -p $dir
2523
    done
2524
    for f in $FILES ; do
2525
        $ln_s "$source_path/$f" $f
2526
    done
2527
fi
2528

    
2529

    
2530
# build pkg-config files
2531

    
2532
pkgconfig_generate(){
2533
name=$1
2534
shortname=${name#lib}${build_suffix}
2535
comment=$2
2536
version=$3
2537
libs=$4
2538
requires=$5
2539
cat <<EOF > $name/$name.pc
2540
prefix=$prefix
2541
exec_prefix=\${prefix}
2542
libdir=$libdir
2543
includedir=$incdir
2544

    
2545
Name: $name
2546
Description: $comment
2547
Version: $version
2548
Requires: $(disabled shared && echo $requires)
2549
Requires.private: $(enabled shared && echo $requires)
2550
Conflicts:
2551
Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2552
Libs.private: $(enabled shared && echo $libs)
2553
Cflags: -I\${includedir}
2554
EOF
2555
cat <<EOF > $name/$name-uninstalled.pc
2556
prefix=
2557
exec_prefix=
2558
libdir=\${pcfiledir}
2559
includedir=${source_path}
2560

    
2561
Name: $name
2562
Description: $comment
2563
Version: $version
2564
Requires: $requires
2565
Conflicts:
2566
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2567
Cflags: -I\${includedir}
2568
EOF
2569
}
2570

    
2571
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2572
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2573
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2574
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2575
enabled avfilter &&
2576
    pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2577
enabled postproc &&
2578
    pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2579
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"