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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-version3        upgrade (L)GPL to version 3 [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-swscale-alpha  disable alpha channel support in swscale"
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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 "  --disable-vaapi          disable VAAPI code"
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  echo "  --disable-vdpau          disable VDPAU code"
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  echo "  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)"
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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-hwaccel=NAME   disable hwaccel NAME"
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  echo "  --enable-hwaccel=NAME    enable hwaccel NAME"
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  echo "  --disable-hwaccels       disable all hwaccels"
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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-indev=NAME     disable input device NAME"
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  echo "  --disable-outdev=NAME    disable output device NAME"
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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-hwaccels          show all available hardware accelerators"
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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-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]"
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  echo "  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [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"
204
  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"
209
  echo "  --disable-amd3dnowext    disable 3DNow! extended optimizations"
210
  echo "  --disable-mmx            disable MMX optimizations"
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  echo "  --disable-mmx2           disable MMX2 optimizations"
212
  echo "  --disable-sse            disable SSE optimizations"
213
  echo "  --disable-ssse3          disable SSSE3 optimizations"
214
  echo "  --disable-armv5te        disable armv5te optimizations"
215
  echo "  --disable-armv6          disable armv6 optimizations"
216
  echo "  --disable-armv6t2        disable armv6t2 optimizations"
217
  echo "  --disable-armvfp         disable ARM VFP optimizations"
218
  echo "  --disable-iwmmxt         disable iwmmxt optimizations"
219
  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
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  echo "Developer options (useful when working on FFmpeg itself):"
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  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]"
228
  echo "  --disable-optimizations  disable compiler optimizations"
229
  echo "  --enable-extra-warnings  enable more compiler warnings"
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  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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236
log(){
237
    echo "$@" >> $logfile
238
}
239

    
240
log_file(){
241
    log BEGIN $1
242
    pr -n -t $1 >> $logfile
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    log END $1
244
}
245

    
246
echolog(){
247
    log "$@"
248
    echo "$@"
249
}
250

    
251
die(){
252
    echolog "$@"
253
    cat <<EOF
254

    
255
If you think configure made a mistake, make sure you are using the latest
256
version from SVN.  If the latest version fails, report the problem to the
257
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
258
EOF
259
    if disabled logging; then
260
        cat <<EOF
261
Rerun configure with logging enabled (do not use --disable-logging), and
262
include the log this produces with your report.
263
EOF
264
    else
265
cat <<EOF
266
Include the log file "$logfile" produced by configure as this will help
267
solving the problem.
268
EOF
269
    fi
270
    exit 1
271
}
272

    
273
# Avoid locale weirdness, besides we really just want to translate ASCII.
274
toupper(){
275
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
276
}
277

    
278
tolower(){
279
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
280
}
281

    
282
c_escape(){
283
    echo "$*" | sed 's/["\\]/\\\0/g'
284
}
285

    
286
sh_quote(){
287
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
288
    test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
289
    echo "$v"
290
}
291

    
292
set_all(){
293
    value=$1
294
    shift
295
    for var in $*; do
296
        eval $var=$value
297
    done
298
}
299

    
300
set_weak(){
301
    value=$1
302
    shift
303
    for var; do
304
        eval : \${$var:=$value}
305
    done
306
}
307

    
308
pushvar(){
309
    for var in $*; do
310
        eval level=\${${var}_level:=0}
311
        eval ${var}_${level}="\$$var"
312
        eval ${var}_level=$(($level+1))
313
    done
314
}
315

    
316
popvar(){
317
    for var in $*; do
318
        eval level=\${${var}_level:-0}
319
        test $level = 0 && continue
320
        eval level=$(($level-1))
321
        eval $var="\${${var}_${level}}"
322
        eval ${var}_level=$level
323
        eval unset ${var}_${level}
324
    done
325
}
326

    
327
enable(){
328
    set_all yes $*
329
}
330

    
331
disable(){
332
    set_all no $*
333
}
334

    
335
enable_weak(){
336
    set_weak yes $*
337
}
338

    
339
disable_weak(){
340
    set_weak no $*
341
}
342

    
343
enable_safe(){
344
    enable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
345
}
346

    
347
disable_safe(){
348
    disable $(echo "$*" | sed 's/[^A-Za-z0-9_ ]/_/g')
349
}
350

    
351
do_enable_deep(){
352
    for var; do
353
        enabled $var && continue
354
        eval sel="\$${var}_select"
355
        eval sgs="\$${var}_suggest"
356
        pushvar var sgs
357
        enable_deep $sel
358
        popvar sgs
359
        enable_deep_weak $sgs
360
        popvar var
361
    done
362
}
363

    
364
enable_deep(){
365
    do_enable_deep $*
366
    enable $*
367
}
368

    
369
enable_deep_weak(){
370
    do_enable_deep $*
371
    enable_weak $*
372
}
373

    
374
enabled(){
375
    test "${1#!}" = "$1" && op== || op=!=
376
    eval test "x\$${1#!}" $op "xyes"
377
}
378

    
379
disabled(){
380
    test "${1#!}" = "$1" && op== || op=!=
381
    eval test "x\$${1#!}" $op "xno"
382
}
383

    
384
enabled_all(){
385
    for opt; do
386
        enabled $opt || return 1
387
    done
388
}
389

    
390
disabled_all(){
391
    for opt; do
392
        disabled $opt || return 1
393
    done
394
}
395

    
396
enabled_any(){
397
    for opt; do
398
        enabled $opt && return 0
399
    done
400
}
401

    
402
disabled_any(){
403
    for opt; do
404
        disabled $opt && return 0
405
    done
406
    return 1
407
}
408

    
409
set_default(){
410
    for opt; do
411
        eval : \${$opt:=\$${opt}_default}
412
    done
413
}
414

    
415
is_in(){
416
    value=$1
417
    shift
418
    for var in $*; do
419
        [ $var = $value ] && return 0
420
    done
421
    return 1
422
}
423

    
424
check_deps(){
425
    for cfg; do
426
        cfg="${cfg#!}"
427
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
428
        disabled ${cfg}_checking && continue
429
        enable ${cfg}_checking
430

    
431
        eval dep_all="\$${cfg}_deps"
432
        eval dep_any="\$${cfg}_deps_any"
433
        eval dep_sel="\$${cfg}_select"
434
        eval dep_sgs="\$${cfg}_suggest"
435

    
436
        pushvar cfg dep_all dep_any dep_sel dep_sgs
437
        check_deps $dep_all $dep_any $dep_sel $dep_sgs
438
        popvar cfg dep_all dep_any dep_sel dep_sgs
439

    
440
        enabled_all  $dep_all || disable $cfg
441
        enabled_any  $dep_any || disable $cfg
442
        disabled_any $dep_sel && disable $cfg
443

    
444
        if enabled $cfg; then
445
            eval dep_extralibs="\$${cfg}_extralibs"
446
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
447
            enable_deep $dep_sel
448
            enable_deep_weak $dep_sgs
449
        fi
450

    
451
        disable ${cfg}_checking
452
    done
453
}
454

    
455
print_config(){
456
    pfx=$1
457
    header=$2
458
    makefile=$3
459
    shift 3
460
    for cfg; do
461
        ucname="$(toupper $cfg)"
462
        if enabled $cfg; then
463
            echo "#define ${pfx}${ucname} 1" >> $header
464
            echo "${pfx}${ucname}=yes" >> $makefile
465
        else
466
            echo "#define ${pfx}${ucname} 0" >> $header
467
        fi
468
    done
469
}
470

    
471
flags_saved(){
472
    (: ${SAVE_CFLAGS?}) 2> /dev/null
473
}
474

    
475
save_flags(){
476
    flags_saved && return
477
    SAVE_CFLAGS="$CFLAGS"
478
    SAVE_LDFLAGS="$LDFLAGS"
479
    SAVE_extralibs="$extralibs"
480
}
481

    
482
restore_flags(){
483
    flags_saved || return
484
    CFLAGS="$SAVE_CFLAGS"
485
    LDFLAGS="$SAVE_LDFLAGS"
486
    extralibs="$SAVE_extralibs"
487
    unset SAVE_CFLAGS
488
    unset SAVE_LDFLAGS
489
    unset SAVE_extralibs
490
}
491

    
492
temp_cflags(){
493
    save_flags
494
    CFLAGS="$CFLAGS $*"
495
}
496

    
497
temp_ldflags(){
498
    save_flags
499
    LDFLAGS="$LDFLAGS $*"
500
}
501

    
502
temp_extralibs(){
503
    save_flags
504
    extralibs="$extralibs $*"
505
}
506

    
507
append(){
508
    var=$1
509
    shift
510
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
511
    eval "$var=\"\$$var $*\""
512
}
513

    
514
add_cflags(){
515
    append CFLAGS "$@"
516
}
517

    
518
add_ldflags(){
519
    append LDFLAGS "$@"
520
}
521

    
522
add_extralibs(){
523
    append extralibs "$@"
524
}
525

    
526
check_cmd(){
527
    log "$@"
528
    "$@" >> $logfile 2>&1
529
}
530

    
531
check_cc(){
532
    log check_cc "$@"
533
    cat > $TMPC
534
    log_file $TMPC
535
    check_cmd $cc $CFLAGS "$@" -c -o $TMPO $TMPC
536
}
537

    
538
check_cpp(){
539
    log check_cpp "$@"
540
    cat > $TMPC
541
    log_file $TMPC
542
    check_cmd $cc $CFLAGS "$@" -E -o $TMPO $TMPC
543
}
544

    
545
check_as(){
546
    log check_as "$@"
547
    cat > $TMPC
548
    log_file $TMPC
549
    check_cmd $as $CFLAGS "$@" -c -o $TMPO $TMPC
550
}
551

    
552
check_asm(){
553
    log check_asm "$@"
554
    name="$1"
555
    asm="$2"
556
    shift 2
557
    check_as "$@" <<EOF && enable $name || disable $name
558
void foo(void){ __asm__ volatile($asm); }
559
EOF
560
}
561

    
562
check_yasm(){
563
    log check_yasm "$@"
564
    echo "$1" > $TMPS
565
    log_file $TMPS
566
    shift 1
567
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
568
}
569

    
570
check_ld(){
571
    log check_ld "$@"
572
    check_cc || return
573
    flags=''
574
    libs=''
575
    for f; do
576
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
577
    done
578
    check_cmd $cc $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
579
}
580

    
581
check_cflags(){
582
    log check_cflags "$@"
583
    check_cc "$@" <<EOF && add_cflags "$@"
584
int x;
585
EOF
586
}
587

    
588
check_ldflags(){
589
    log check_ldflags "$@"
590
    check_ld "$@" <<EOF && add_ldflags "$@"
591
int main(void){ return 0; }
592
EOF
593
}
594

    
595
check_header(){
596
    log check_header "$@"
597
    header=$1
598
    shift
599
    disable_safe $header
600
    check_cpp "$@" <<EOF && enable_safe $header
601
#include <$header>
602
int x;
603
EOF
604
}
605

    
606
check_func(){
607
    log check_func "$@"
608
    func=$1
609
    shift
610
    disable $func
611
    check_ld "$@" <<EOF && enable $func
612
extern int $func();
613
int main(void){ $func(); }
614
EOF
615
}
616

    
617
check_func_headers(){
618
    log check_func_headers "$@"
619
    headers=$1
620
    func=$2
621
    shift 2
622
    disable $func
623
    incs=""
624
    for hdr in $headers; do
625
        incs="$incs
626
#include <$hdr>"
627
    done
628
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
629
$incs
630
int main(int argc, char **argv){
631
    (void) $func;
632
    return 0;
633
}
634
EOF
635
}
636

    
637
check_cpp_condition(){
638
    log check_cpp_condition "$@"
639
    header=$1
640
    condition=$2
641
    check_cpp <<EOF
642
#include <$header>
643
#if !($condition)
644
#error "unsatisfied condition: $condition"
645
#endif
646
EOF
647
}
648

    
649
check_lib(){
650
    log check_lib "$@"
651
    header="$1"
652
    func="$2"
653
    shift 2
654
    temp_extralibs "$@"
655
    check_header $header && check_func $func && add_extralibs "$@"
656
    err=$?
657
    restore_flags
658
    return $err
659
}
660

    
661
check_lib2(){
662
    log check_lib2 "$@"
663
    headers="$1"
664
    func="$2"
665
    shift 2
666
    temp_extralibs "$@"
667
    check_func_headers "$headers" $func && add_extralibs "$@"
668
    err=$?
669
    restore_flags
670
    return $err
671
}
672

    
673
check_exec(){
674
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
675
}
676

    
677
check_exec_crash(){
678
    code=$(cat)
679

    
680
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
681
    # are safe but may not be available everywhere.  Thus we use
682
    # raise(SIGTERM) instead.  The check is run in a subshell so we
683
    # can redirect the "Terminated" message from the shell.  SIGBUS
684
    # is not defined by standard C so it is used conditionally.
685

    
686
    (check_exec "$@") >> $logfile 2>&1 <<EOF
687
#include <signal.h>
688
static void sighandler(int sig){
689
    raise(SIGTERM);
690
}
691
int main(void){
692
    signal(SIGILL, sighandler);
693
    signal(SIGFPE, sighandler);
694
    signal(SIGSEGV, sighandler);
695
#ifdef SIGBUS
696
    signal(SIGBUS, sighandler);
697
#endif
698
    { $code }
699
}
700
EOF
701
}
702

    
703
check_type(){
704
    log check_type "$@"
705
    headers=$1
706
    type=$2
707
    shift 2
708
    disable $type
709
    incs=""
710
    for hdr in $headers; do
711
        incs="$incs
712
#include <$hdr>"
713
    done
714
    check_cc "$@" <<EOF && enable $type
715
$incs
716
$type v;
717
EOF
718
}
719

    
720
require(){
721
    name="$1"
722
    header="$2"
723
    func="$3"
724
    shift 3
725
    check_lib $header $func "$@" || die "ERROR: $name not found"
726
}
727

    
728
require2(){
729
    name="$1"
730
    headers="$2"
731
    func="$3"
732
    shift 3
733
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
734
}
735

    
736
check_foo_config(){
737
    cfg=$1
738
    pkg=$2
739
    header=$3
740
    func=$4
741
    shift 4
742
    disable $cfg
743
    check_cmd ${pkg}-config --version
744
    err=$?
745
    if test "$err" = 0; then
746
        temp_cflags $(${pkg}-config --cflags)
747
        temp_extralibs $(${pkg}-config --libs)
748
        check_lib "$@" $header $func && enable $cfg
749
    fi
750
    return $err
751
}
752

    
753
apply(){
754
    file=$1
755
    shift
756
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
757
}
758

    
759
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
760
# system-dependent things.
761

    
762
COMPONENT_LIST="
763
    bsfs
764
    decoders
765
    demuxers
766
    encoders
767
    filters
768
    hwaccels
769
    indevs
770
    muxers
771
    outdevs
772
    parsers
773
    protocols
774
"
775

    
776
CONFIG_LIST="
777
    $COMPONENT_LIST
778
    aandct
779
    avfilter
780
    avfilter_lavf
781
    avisynth
782
    beos_netserver
783
    bzlib
784
    fastdiv
785
    ffmpeg
786
    ffplay
787
    ffserver
788
    fft
789
    golomb
790
    gpl
791
    gprof
792
    gray
793
    hardcoded_tables
794
    ipv6
795
    libdc1394
796
    libdirac
797
    libfaac
798
    libfaad
799
    libfaadbin
800
    libgsm
801
    libmp3lame
802
    libnut
803
    libopencore_amrnb
804
    libopencore_amrwb
805
    libopenjpeg
806
    libschroedinger
807
    libspeex
808
    libtheora
809
    libvorbis
810
    libx264
811
    libxvid
812
    mdct
813
    memalign_hack
814
    mlib
815
    mpegaudio_hp
816
    network
817
    nonfree
818
    postproc
819
    powerpc_perf
820
    rdft
821
    runtime_cpudetect
822
    shared
823
    small
824
    static
825
    swscale_alpha
826
    vaapi
827
    vdpau
828
    version3
829
    x11grab
830
    zlib
831
"
832

    
833
THREADS_LIST='
834
    beosthreads
835
    os2threads
836
    pthreads
837
    w32threads
838
'
839

    
840
ARCH_LIST='
841
    alpha
842
    arm
843
    bfin
844
    ia64
845
    m68k
846
    mips
847
    mips64
848
    parisc
849
    ppc
850
    ppc64
851
    s390
852
    sh4
853
    sparc
854
    sparc64
855
    x86
856
    x86_32
857
    x86_64
858
'
859

    
860
ARCH_EXT_LIST='
861
    altivec
862
    amd3dnow
863
    amd3dnowext
864
    armv5te
865
    armv6
866
    armv6t2
867
    armvfp
868
    iwmmxt
869
    mmi
870
    mmx
871
    mmx2
872
    neon
873
    ppc4xx
874
    sse
875
    ssse3
876
    vis
877
'
878

    
879
HAVE_LIST="
880
    $ARCH_EXT_LIST
881
    $THREADS_LIST
882
    alsa_asoundlib_h
883
    altivec_h
884
    arpa_inet_h
885
    bigendian
886
    bswap
887
    closesocket
888
    cmov
889
    conio_h
890
    dcbzl
891
    dev_bktr_ioctl_bt848_h
892
    dev_bktr_ioctl_meteor_h
893
    dev_ic_bt8xx_h
894
    dev_video_meteor_ioctl_meteor_h
895
    dev_video_bktr_ioctl_bt848_h
896
    dlfcn_h
897
    dlopen
898
    dos_paths
899
    ebp_available
900
    ebx_available
901
    fast_64bit
902
    fast_cmov
903
    fast_unaligned
904
    fork
905
    gethrtime
906
    GetProcessTimes
907
    getrusage
908
    inet_aton
909
    inline_asm
910
    ldbrx
911
    libdc1394_1
912
    libdc1394_2
913
    llrint
914
    log2
915
    loongson
916
    lrint
917
    lrintf
918
    lzo1x_999_compress
919
    machine_ioctl_bt848_h
920
    machine_ioctl_meteor_h
921
    malloc_h
922
    memalign
923
    mkstemp
924
    pld
925
    posix_memalign
926
    round
927
    roundf
928
    sdl
929
    sdl_video_size
930
    setmode
931
    socklen_t
932
    soundcard_h
933
    poll_h
934
    sys_mman_h
935
    sys_resource_h
936
    sys_select_h
937
    sys_soundcard_h
938
    sys_videoio_h
939
    ten_operands
940
    termios_h
941
    threads
942
    truncf
943
    VirtualAlloc
944
    winsock2_h
945
    xform_asm
946
    yasm
947
"
948

    
949
# options emitted with CONFIG_ prefix but not available on command line
950
CONFIG_EXTRA="
951
    gplv3
952
    lgplv3
953
"
954

    
955
CMDLINE_SELECT="
956
    $ARCH_EXT_LIST
957
    $CONFIG_LIST
958
    $THREADS_LIST
959
    cross_compile
960
    debug
961
    extra_warnings
962
    logging
963
    optimizations
964
    stripping
965
    yasm
966
"
967

    
968
PATHS_LIST='
969
    bindir
970
    datadir
971
    incdir
972
    libdir
973
    mandir
974
    prefix
975
    shlibdir
976
'
977

    
978
CMDLINE_SET="
979
    $PATHS_LIST
980
    arch
981
    as
982
    build_suffix
983
    cc
984
    cpu
985
    cross_prefix
986
    extra_version
987
    host_cc
988
    host_cflags
989
    host_ldflags
990
    host_libs
991
    host_os
992
    logfile
993
    nm
994
    source_path
995
    sysinclude
996
    sysroot
997
    target_exec
998
    target_os
999
    target_path
1000
"
1001

    
1002
# code dependency declarations
1003

    
1004
# architecture extensions
1005
altivec_deps="ppc"
1006
amd3dnow_deps="mmx"
1007
amd3dnowext_deps="amd3dnow"
1008
armv5te_deps="arm"
1009
armv6_deps="arm"
1010
armv6t2_deps="arm"
1011
armvfp_deps="arm"
1012
iwmmxt_deps="arm"
1013
mmi_deps="mips"
1014
mmx_deps="x86"
1015
mmx2_deps="mmx"
1016
neon_deps="arm"
1017
ppc4xx_deps="ppc"
1018
sse_deps="mmx"
1019
ssse3_deps="sse"
1020
vis_deps="sparc"
1021

    
1022
# decoders / encoders / hardware accelerators
1023
aac_decoder_select="fft mdct"
1024
ac3_decoder_select="fft mdct"
1025
atrac3_decoder_select="fft mdct"
1026
cavs_decoder_select="golomb"
1027
cook_decoder_select="fft mdct"
1028
cscd_decoder_suggest="zlib"
1029
dca_decoder_select="fft mdct"
1030
dnxhd_encoder_select="aandct"
1031
dxa_decoder_select="zlib"
1032
eac3_decoder_select="fft mdct"
1033
eatgq_decoder_select="aandct"
1034
eatqi_decoder_select="aandct"
1035
ffv1_decoder_select="golomb"
1036
flac_decoder_select="golomb"
1037
flac_encoder_select="golomb"
1038
flashsv_decoder_select="zlib"
1039
flashsv_encoder_select="zlib"
1040
flv_encoder_select="aandct"
1041
h261_encoder_select="aandct"
1042
h263_encoder_select="aandct"
1043
h263_vaapi_hwaccel_deps="va_va_h"
1044
h263_vaapi_hwaccel_select="vaapi"
1045
h263p_encoder_select="aandct"
1046
h264_decoder_select="golomb"
1047
h264_vaapi_hwaccel_deps="va_va_h"
1048
h264_vaapi_hwaccel_select="vaapi"
1049
h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1050
h264_vdpau_decoder_select="vdpau"
1051
imc_decoder_select="fft mdct"
1052
jpegls_decoder_select="golomb"
1053
jpegls_encoder_select="golomb"
1054
ljpeg_encoder_select="aandct"
1055
loco_decoder_select="golomb"
1056
mjpeg_encoder_select="aandct"
1057
mpeg1video_encoder_select="aandct"
1058
mpeg2video_encoder_select="aandct"
1059
mpeg4_encoder_select="aandct"
1060
mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1061
mpeg_vdpau_decoder_select="vdpau"
1062
mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1063
mpeg1_vdpau_decoder_select="vdpau"
1064
mpeg2_vaapi_hwaccel_deps="va_va_h"
1065
mpeg2_vaapi_hwaccel_select="vaapi"
1066
mpeg4_vaapi_hwaccel_deps="va_va_h"
1067
mpeg4_vaapi_hwaccel_select="vaapi"
1068
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1069
msmpeg4v1_encoder_select="aandct"
1070
msmpeg4v2_encoder_select="aandct"
1071
msmpeg4v3_encoder_select="aandct"
1072
nellymoser_decoder_select="fft mdct"
1073
nellymoser_encoder_select="fft mdct"
1074
png_decoder_select="zlib"
1075
png_encoder_select="zlib"
1076
qdm2_decoder_select="fft mdct rdft"
1077
rv10_encoder_select="aandct"
1078
rv20_encoder_select="aandct"
1079
rv30_decoder_select="golomb"
1080
rv40_decoder_select="golomb"
1081
shorten_decoder_select="golomb"
1082
sonic_decoder_select="golomb"
1083
sonic_encoder_select="golomb"
1084
sonic_ls_encoder_select="golomb"
1085
svq3_decoder_select="golomb"
1086
svq3_decoder_suggest="zlib"
1087
tiff_decoder_suggest="zlib"
1088
tiff_encoder_suggest="zlib"
1089
tscc_decoder_select="zlib"
1090
vc1_vaapi_hwaccel_deps="va_va_h"
1091
vc1_vaapi_hwaccel_select="vaapi"
1092
vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1093
vc1_vdpau_decoder_select="vdpau"
1094
vorbis_decoder_select="fft mdct"
1095
vorbis_encoder_select="fft mdct"
1096
wmav1_decoder_select="fft mdct"
1097
wmav1_encoder_select="fft mdct"
1098
wmav2_decoder_select="fft mdct"
1099
wmav2_encoder_select="fft mdct"
1100
wmv1_encoder_select="aandct"
1101
wmv2_encoder_select="aandct"
1102
wmv3_vaapi_hwaccel_deps="va_va_h"
1103
wmv3_vaapi_hwaccel_select="vaapi"
1104
wmv3_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1105
wmv3_vdpau_decoder_select="vdpau"
1106
zlib_decoder_select="zlib"
1107
zlib_encoder_select="zlib"
1108
zmbv_decoder_select="zlib"
1109
zmbv_encoder_select="zlib"
1110

    
1111
# parsers
1112
h264_parser_select="golomb"
1113

    
1114
# external libraries
1115
libdirac_decoder_deps="libdirac !libschroedinger"
1116
libdirac_encoder_deps="libdirac"
1117
libfaac_encoder_deps="libfaac"
1118
libfaad_decoder_deps="libfaad"
1119
libfaadbin_decoder_extralibs='$ldl'
1120
libgsm_decoder_deps="libgsm"
1121
libgsm_encoder_deps="libgsm"
1122
libgsm_ms_decoder_deps="libgsm"
1123
libgsm_ms_encoder_deps="libgsm"
1124
libmp3lame_encoder_deps="libmp3lame"
1125
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1126
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1127
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1128
libopenjpeg_decoder_deps="libopenjpeg"
1129
libschroedinger_decoder_deps="libschroedinger"
1130
libschroedinger_encoder_deps="libschroedinger"
1131
libspeex_decoder_deps="libspeex"
1132
libtheora_encoder_deps="libtheora"
1133
libvorbis_encoder_deps="libvorbis"
1134
libx264_encoder_deps="libx264"
1135
libxvid_encoder_deps="libxvid"
1136

    
1137
# demuxers / muxers
1138
ac3_demuxer_deps="ac3_parser"
1139
avisynth_demuxer_deps="avisynth"
1140
dirac_demuxer_deps="dirac_parser"
1141
libnut_demuxer_deps="libnut"
1142
libnut_muxer_deps="libnut"
1143
matroska_demuxer_suggest="zlib bzlib"
1144
mov_demuxer_suggest="zlib"
1145
mp3_demuxer_deps="mpegaudio_parser"
1146
redir_demuxer_deps="network"
1147
rtp_muxer_deps="network rtp_protocol"
1148
rtsp_demuxer_deps="sdp_demuxer"
1149
sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1150

    
1151
# indevs / outdevs
1152
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1153
alsa_indev_extralibs="-lasound"
1154
alsa_outdev_deps="alsa_asoundlib_h"
1155
alsa_outdev_extralibs="-lasound"
1156
audio_beos_indev_deps="audio_beos"
1157
audio_beos_indev_extralibs="-lmedia -lbe"
1158
audio_beos_outdev_deps="audio_beos"
1159
audio_beos_outdev_extralibs="-lmedia -lbe"
1160
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1161
dv1394_indev_deps="dv1394 dv_demuxer"
1162
jack_indev_deps="jack_jack_h"
1163
jack_indev_extralibs="-ljack"
1164
libdc1394_indev_deps="libdc1394"
1165
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1166
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1167
v4l_indev_deps="linux_videodev_h"
1168
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1169
vfwcap_indev_deps="capCreateCaptureWindow"
1170
vfwcap_indev_extralibs="-lvfw32"
1171
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1172
x11_grab_device_indev_extralibs="-lX11 -lXext"
1173

    
1174
# protocols
1175
gopher_protocol_deps="network"
1176
http_protocol_deps="network"
1177
rtp_protocol_deps="udp_protocol"
1178
tcp_protocol_deps="network"
1179
udp_protocol_deps="network"
1180

    
1181
# filters
1182
movie_filter_deps="avfilter_lavf"
1183

    
1184
# programs
1185
ffplay_deps="sdl"
1186
ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1187
ffserver_extralibs='$ldl'
1188

    
1189

    
1190
# default parameters
1191

    
1192
logfile="config.err"
1193

    
1194
# installation paths
1195
prefix_default="/usr/local"
1196
bindir_default='${prefix}/bin'
1197
datadir_default='${prefix}/share/ffmpeg'
1198
incdir_default='${prefix}/include'
1199
libdir_default='${prefix}/lib'
1200
mandir_default='${prefix}/share/man'
1201
shlibdir_default="$libdir_default"
1202

    
1203
# toolchain
1204
ar="ar"
1205
cc_default="gcc"
1206
host_cc_default="gcc"
1207
ln_s="ln -sf"
1208
nm_default="nm"
1209
objformat="elf"
1210
ranlib="ranlib"
1211
strip="strip"
1212
yasmexe="yasm"
1213

    
1214
# machine
1215
arch=$(uname -m)
1216
cpu="generic"
1217

    
1218
# OS
1219
target_os=$(tolower $(uname -s))
1220
host_os=$target_os
1221

    
1222
# configurable options
1223
enable debug
1224
enable fastdiv
1225
enable ffmpeg
1226
enable ffplay
1227
enable ffserver
1228
enable ipv6
1229
enable mpegaudio_hp
1230
enable network
1231
enable optimizations
1232
enable protocols
1233
enable static
1234
enable stripping
1235
enable swscale_alpha
1236

    
1237
# build settings
1238
add_cflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1239
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1240
FFSERVERLDFLAGS=-Wl,-E
1241
LIBPREF="lib"
1242
LIBSUF=".a"
1243
FULLNAME='$(NAME)$(BUILDSUF)'
1244
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1245
SLIBPREF="lib"
1246
SLIBSUF=".so"
1247
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1248
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1249
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1250
LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1251

    
1252
host_cflags='-O3 -g -Wall'
1253
host_libs='-lm'
1254

    
1255
target_path='.'
1256

    
1257
# gcc stupidly only outputs the basename of targets with -MM, but we need the
1258
# full relative path for objects in subdirectories for non-recursive Make.
1259
DEPEND_CMD='$(CC) $(CFLAGS) -MM $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1260

    
1261
# find source path
1262
source_path="$(dirname "$0")"
1263
enable source_path_used
1264
if test -z "$source_path" -o "$source_path" = "." ; then
1265
    source_path="$(pwd)"
1266
    disable source_path_used
1267
else
1268
    source_path="$(cd "$source_path"; pwd)"
1269
    echo "$source_path" | grep -q '[[:blank:]]' &&
1270
        die "Out of tree builds are impossible with whitespace in source path."
1271
    test -e "$source_path/config.h" &&
1272
        die "Out of tree builds are impossible with config.h in source dir."
1273
fi
1274

    
1275
for v in "$@"; do
1276
    r=${v#*=}
1277
    l=${v%"$r"}
1278
    r=$(sh_quote "$r")
1279
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1280
done
1281

    
1282
find_things(){
1283
    thing=$1
1284
    pattern=$2
1285
    file=$source_path/$3
1286
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1287
}
1288

    
1289
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1290
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1291
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1292
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1293
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1294
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1295
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1296
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1297
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1298
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1299
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1300

    
1301
enable $ARCH_EXT_LIST \
1302
       $DECODER_LIST \
1303
       $ENCODER_LIST \
1304
       $HWACCEL_LIST \
1305
       $PARSER_LIST \
1306
       $BSF_LIST \
1307
       $DEMUXER_LIST \
1308
       $MUXER_LIST \
1309
       $FILTER_LIST \
1310
       $PROTOCOL_LIST \
1311
       $INDEV_LIST \
1312
       $OUTDEV_LIST \
1313

    
1314
die_unknown(){
1315
    echo "Unknown option \"$1\"."
1316
    echo "See $0 --help for available options."
1317
    exit 1
1318
}
1319

    
1320
show_list() {
1321
    suffix=_$1
1322
    shift
1323
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1324
    exit 0
1325
}
1326

    
1327
for opt do
1328
    optval="${opt#*=}"
1329
    case "$opt" in
1330
    --extra-cflags=*) add_cflags $optval
1331
    ;;
1332
    --extra-ldflags=*) add_ldflags $optval
1333
    ;;
1334
    --extra-libs=*) add_extralibs $optval
1335
    ;;
1336
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1337
    ;;
1338
    --enable-debug=*) debuglevel="$optval"
1339
    ;;
1340
    --enable-*=*|--disable-*=*)
1341
    eval $(echo "$opt" | sed 's/=/-/;s/--/action=/;s/-/ thing=/;s/-/ name=/')
1342
    case "$thing" in
1343
        encoder|decoder|hwaccel|muxer|demuxer|indev|outdev|parser|bsf|protocol|filter) $action ${optval}_${thing} ;;
1344
        *) die_unknown "$opt" ;;
1345
    esac
1346
    ;;
1347
    --enable-?*|--disable-?*)
1348
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1349
    if is_in $option $COMPONENT_LIST; then
1350
        test $action = disable && action=unset
1351
        eval $action \$$(toupper ${option%s})_LIST
1352
    elif is_in $option $CMDLINE_SELECT; then
1353
        $action $option
1354
    else
1355
        die_unknown $opt
1356
    fi
1357
    ;;
1358
    --list-*)
1359
        NAME="${opt#--list-}"
1360
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1361
        NAME=${NAME%s}
1362
        eval show_list $NAME \$$(toupper $NAME)_LIST
1363
    ;;
1364
    --help|-h) show_help
1365
    ;;
1366
    *)
1367
    optname="${opt%%=*}"
1368
    optname="${optname#--}"
1369
    optname=$(echo "$optname" | sed 's/-/_/g')
1370
    is_in $optname $CMDLINE_SET || die_unknown $opt
1371
    eval $optname='$optval'
1372
    ;;
1373
    esac
1374
done
1375

    
1376
disabled logging && logfile=/dev/null
1377

    
1378
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1379
set >> $logfile
1380

    
1381
test -n "$cross_prefix" && enable cross_compile
1382

    
1383
ar="${cross_prefix}${ar}"
1384
cc_default="${cross_prefix}${cc_default}"
1385
nm_default="${cross_prefix}${nm_default}"
1386
ranlib="${cross_prefix}${ranlib}"
1387
strip="${cross_prefix}${strip}"
1388

    
1389
sysinclude_default="${sysroot}/usr/include"
1390

    
1391
set_default cc nm sysinclude
1392
as_default=$cc
1393
enabled cross_compile || host_cc_default=$cc
1394
set_default host_cc
1395

    
1396
exesuf() {
1397
    case $1 in
1398
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1399
    esac
1400
}
1401

    
1402
EXESUF=$(exesuf $target_os)
1403
HOSTEXESUF=$(exesuf $host_os)
1404

    
1405
# set temporary file name
1406
: ${TMPDIR:=$TEMPDIR}
1407
: ${TMPDIR:=$TMP}
1408
: ${TMPDIR:=/tmp}
1409

    
1410
if ! check_cmd type mktemp; then
1411
    # simple replacement for missing mktemp
1412
    # NOT SAFE FOR GENERAL USE
1413
    mktemp(){
1414
        echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1415
    }
1416
fi
1417

    
1418
tmpfile(){
1419
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1420
        (set -C; exec > $tmp) 2>/dev/null ||
1421
        die "Unable to create temoporary file in $TMPDIR."
1422
    append TMPFILES $tmp
1423
    eval $1=$tmp
1424
}
1425

    
1426
trap 'rm -f -- $TMPFILES' EXIT
1427
trap exit HUP INT TERM
1428

    
1429
tmpfile TMPC  .c
1430
tmpfile TMPE  $EXESUF
1431
tmpfile TMPH  .h
1432
tmpfile TMPO  .o
1433
tmpfile TMPS  .S
1434
tmpfile TMPSH .sh
1435

    
1436
unset -f mktemp
1437

    
1438
# make sure we can execute files in $TMPDIR
1439
cat > $TMPSH 2>> $logfile <<EOF
1440
#! /bin/sh
1441
EOF
1442
chmod +x $TMPSH >> $logfile 2>&1
1443
if ! $TMPSH >> $logfile 2>&1; then
1444
    cat <<EOF
1445
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1446
variable to another directory and make sure that it is not mounted noexec.
1447
EOF
1448
    die "Sanity test failed."
1449
fi
1450

    
1451
if   $cc --version 2>/dev/null | grep -qi gcc; then
1452
    cc_type=gcc
1453
elif $cc --version 2>/dev/null | grep -q Intel; then
1454
    cc_type=icc
1455
elif $cc -v 2>&1 | grep -q xlc; then
1456
    cc_type=xlc
1457
elif $cc -V 2>/dev/null | grep -q Compaq; then
1458
    cc_type=ccc
1459
    DEPEND_CMD='$(CC) $(CFLAGS) -M $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o,"'
1460
    debuglevel=3
1461
    add_ldflags -Wl,-z,now # calls to libots crash without this
1462
elif $cc --vsn 2>/dev/null | grep -q RVCT; then
1463
    test -d "$sysroot" || die "No valid sysroot specified."
1464
    cc_type=armcc
1465
    armcc_conf="$PWD/armcc.conf"
1466
    $cc --arm_linux_configure                 \
1467
        --arm_linux_config_file="$armcc_conf" \
1468
        --configure_sysroot="$sysroot"        \
1469
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1470
        die "Error creating armcc configuration file."
1471
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1472
    as_default="${cross_prefix}gcc"
1473
fi
1474

    
1475
test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1476

    
1477
set_default as
1478

    
1479
if test -n "$sysroot"; then
1480
    case "$cc_type" in
1481
        gcc)
1482
            add_cflags  --sysroot="$sysroot"
1483
            add_ldflags --sysroot="$sysroot"
1484
        ;;
1485
    esac
1486
fi
1487

    
1488
# compiler sanity check
1489
check_exec <<EOF
1490
int main(void){ return 0; }
1491
EOF
1492
if test "$?" != 0; then
1493
    echo "$cc is unable to create an executable file."
1494
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
1495
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1496
        echo "Only do this if you know what cross compiling means."
1497
    fi
1498
    die "C compiler test failed."
1499
fi
1500

    
1501
check_cflags -std=c99
1502
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cflags -D_FILE_OFFSET_BITS=64
1503
#include <stdlib.h>
1504
EOF
1505
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cflags -D_LARGEFILE_SOURCE
1506
#include <stdlib.h>
1507
EOF
1508

    
1509
case "$arch" in
1510
    alpha)
1511
        arch="alpha"
1512
        enable fast_64bit
1513
        check_cflags -mieee
1514
    ;;
1515
    arm|armv[4567]*l)
1516
        arch="arm"
1517
    ;;
1518
    avr32)
1519
    ;;
1520
    bfin)
1521
        arch="bfin"
1522
    ;;
1523
    ia64)
1524
        arch="ia64"
1525
        enable fast_64bit
1526
    ;;
1527
    m68k)
1528
        arch="m68k"
1529
    ;;
1530
    mips|mipsel|IP*)
1531
        arch="mips"
1532
    ;;
1533
    mips64)
1534
        arch="mips"
1535
        subarch="mips64"
1536
        enable fast_64bit
1537
    ;;
1538
    parisc|hppa)
1539
        arch="parisc"
1540
    ;;
1541
    parisc64|hppa64)
1542
        arch="parisc"
1543
        enable fast_64bit
1544
    ;;
1545
    "Power Macintosh"|ppc|powerpc)
1546
        arch="ppc"
1547
        enable fast_unaligned
1548
    ;;
1549
    ppc64)
1550
        arch="ppc"
1551
        subarch="ppc64"
1552
        enable fast_64bit
1553
        enable fast_unaligned
1554
    ;;
1555
    s390|s390x)
1556
        arch="s390"
1557
    ;;
1558
    sh4|sh)
1559
        arch="sh4"
1560
    ;;
1561
    sparc)
1562
        arch="sparc"
1563
    ;;
1564
    sun4u|sparc64)
1565
        arch="sparc"
1566
        subarch="sparc64"
1567
        enable fast_64bit
1568
    ;;
1569
    i386|i486|i586|i686|i86pc|BePC)
1570
        arch="x86"
1571
        subarch="x86_32"
1572
        enable fast_unaligned
1573
    ;;
1574
    x86_64|amd64)
1575
        arch="x86"
1576
        subarch="x86_32"
1577
        enable cmov
1578
        enable fast_cmov
1579
        enable fast_unaligned
1580
        check_cc <<EOF && enable fast_64bit && subarch="x86_64"
1581
        int test[sizeof(char*) - 7];
1582
EOF
1583
    ;;
1584
    *)
1585
        arch="unknown"
1586
    ;;
1587
esac
1588

    
1589
enable $arch $subarch
1590

    
1591
# OS specific
1592
case $target_os in
1593
    beos|haiku|zeta)
1594
        prefix_default="$HOME/config"
1595
        # helps building libavcodec
1596
        add_cflags -DPIC -fomit-frame-pointer
1597
        # 3 gcc releases known for BeOS, each with ugly bugs
1598
        gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1599
        case "$gcc_version" in
1600
          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1601
            disable mmx
1602
            ;;
1603
          *20010315*) echo "BeBits gcc"
1604
            add_cflags -fno-expensive-optimizations
1605
            ;;
1606
        esac
1607
        SHFLAGS=-nostart
1608
        # enable BeOS things
1609
        enable audio_beos
1610
        # no need for libm, but the inet stuff
1611
        # Check for BONE
1612
        # XXX: actually should check for NOT net_server
1613
        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1614
            network_extralibs="-lbind -lsocket"
1615
        else
1616
            enable beos_netserver
1617
            network_extralibs="-lnet"
1618
        fi ;;
1619
    sunos)
1620
        FFSERVERLDFLAGS=""
1621
        SHFLAGS='-shared -Wl,-h,$$(@F)'
1622
        network_extralibs="-lsocket -lnsl"
1623
        add_cflags -D__EXTENSIONS__
1624
        ;;
1625
    netbsd)
1626
        oss_indev_extralibs="-lossaudio"
1627
        oss_outdev_extralibs="-lossaudio"
1628
        ;;
1629
    openbsd)
1630
        disable need_memalign
1631
        LIBOBJFLAGS='$(PIC)'
1632
        SHFLAGS='-shared'
1633
        oss_indev_extralibs="-lossaudio"
1634
        oss_outdev_extralibs="-lossaudio"
1635
        ;;
1636
    freebsd|dragonfly)
1637
        disable need_memalign
1638
        ;;
1639
    bsd/os)
1640
        osextralibs="-lpoll -lgnugetopt"
1641
        strip="strip -d"
1642
        ;;
1643
    darwin)
1644
        disable need_memalign
1645
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
1646
        strip="strip -x"
1647
        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
1648
        SLIBSUF=".dylib"
1649
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
1650
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
1651
        FFSERVERLDFLAGS=-Wl,-bind_at_load
1652
        objformat="macho"
1653
        enabled x86_64 && objformat="macho64"
1654
        ;;
1655
    mingw32*)
1656
        target_os=mingw32
1657
        LIBTARGET=i386
1658
        if enabled x86_64; then
1659
            disable need_memalign
1660
            LIBTARGET=x64
1661
        fi
1662
        shlibdir_default="$bindir_default"
1663
        disable ffserver
1664
        SLIBPREF=""
1665
        SLIBSUF=".dll"
1666
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1667
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1668
        SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
1669
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
1670
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"'
1671
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
1672
        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
1673
        objformat="win32"
1674
        enable dos_paths
1675
        check_cflags -fno-common
1676
        if ! enabled x86_64; then
1677
            check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
1678
                die "ERROR: MinGW runtime version must be >= 3.15."
1679
            enabled_any avisynth vfwcap_demuxer &&
1680
                { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
1681
                  die "ERROR: avisynth and vfwcap_demuxer require w32api version 3.13 or later."; }
1682
            fi
1683
        ;;
1684
    cygwin*)
1685
        target_os=cygwin
1686
        shlibdir_default="$bindir_default"
1687
        SLIBPREF="cyg"
1688
        SLIBSUF=".dll"
1689
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
1690
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
1691
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
1692
        objformat="win32"
1693
        enable dos_paths
1694
        check_cflags -fno-common
1695
        ;;
1696
    *-dos|freedos|opendos)
1697
        disable ffplay ffserver
1698
        disable $INDEV_LIST $OUTDEV_LIST
1699
        network_extralibs="-lsocket"
1700
        objformat="coff"
1701
        enable dos_paths
1702
        ;;
1703
    linux)
1704
        enable dv1394
1705
        ;;
1706
    irix*)
1707
        target_os=irix
1708
        ranlib="echo ignoring ranlib"
1709
        ;;
1710
    os/2*)
1711
        strip="lxlite"
1712
        ln_s="cp -f"
1713
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
1714
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
1715
        FFSERVERLDFLAGS=""
1716
        LIBSUF="_s.a"
1717
        SLIBPREF=""
1718
        SLIBSUF=".dll"
1719
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
1720
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
1721
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
1722
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
1723
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
1724
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
1725
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
1726
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
1727
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
1728
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
1729
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
1730
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
1731
        enable dos_paths
1732
        ;;
1733
    gnu/kfreebsd)
1734
        ;;
1735
    gnu)
1736
        ;;
1737

    
1738
    *)
1739
        die "Unknown OS '$target_os'."
1740
        ;;
1741
esac
1742

    
1743
set_default $PATHS_LIST
1744

    
1745
add_extralibs $osextralibs
1746

    
1747
# Combine FFLDFLAGS and the LDFLAGS environment variable.
1748
LDFLAGS="$FFLDFLAGS $LDFLAGS"
1749

    
1750
# we need to build at least one lib type
1751
if ! enabled_any static shared; then
1752
    cat <<EOF
1753
At least one library type must be built.
1754
Specify --enable-static to build the static libraries or --enable-shared to
1755
build the shared libraries as well. To only build the shared libraries specify
1756
--disable-static in addition to --enable-shared.
1757
EOF
1758
    exit 1;
1759
fi
1760

    
1761
disabled static && LIBNAME=""
1762

    
1763
if enabled_any libfaad libfaadbin ; then
1764
    if check_header faad.h; then
1765
        check_cc <<EOF
1766
#include <faad.h>
1767
#ifndef FAAD2_VERSION
1768
ok faad1
1769
#endif
1770
int main(void) { return 0; }
1771
EOF
1772
        test $? = 0 && enable libfaad2
1773
    else
1774
        die "FAAD test failed."
1775
    fi
1776
fi
1777

    
1778

    
1779
die_license_disabled() {
1780
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
1781
}
1782

    
1783
die_license_disabled gpl libfaad2
1784
die_license_disabled gpl libx264
1785
die_license_disabled gpl libxvid
1786
die_license_disabled gpl postproc
1787
die_license_disabled gpl x11grab
1788

    
1789
die_license_disabled nonfree libfaac
1790

    
1791
die_license_disabled version3 libopencore_amrnb
1792
die_license_disabled version3 libopencore_amrwb
1793

    
1794
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
1795

    
1796
check_deps $ARCH_EXT_LIST
1797

    
1798
test -z "$need_memalign" && need_memalign="$mmx"
1799

    
1800
#Darwin CC versions
1801
if test $target_os = darwin; then
1802
    if enabled xlc; then
1803
        add_cflags -qpdf2 -qlanglvl=extc99 -qmaxmem=-1 -qarch=auto -qtune=auto
1804
    else
1805
        add_cflags -pipe
1806
        check_cflags -force_cpusubtype_ALL
1807
        check_cflags -Wno-sign-compare
1808
        enabled shared || check_cflags -mdynamic-no-pic
1809
    fi
1810
fi
1811

    
1812
disabled optimizations || check_cflags -fomit-frame-pointer
1813

    
1814
# Add processor-specific flags
1815
if test $cpu != "generic"; then
1816
    warn_altivec(){
1817
        $1 altivec && echo "WARNING: Tuning for $2 but AltiVec $1.";
1818
    }
1819
    case $cpu in
1820
        601|ppc601|PowerPC601)
1821
            add_cflags -mcpu=601
1822
            warn_altivec enabled PPC601
1823
        ;;
1824
        603*|ppc603*|PowerPC603*)
1825
            add_cflags -mcpu=603
1826
            warn_altivec enabled PPC603
1827
        ;;
1828
        604*|ppc604*|PowerPC604*)
1829
            add_cflags -mcpu=604
1830
            warn_altivec enabled PPC604
1831
        ;;
1832
        G3|g3|75*|ppc75*|PowerPC75*)
1833
            add_cflags -mcpu=750 -mpowerpc-gfxopt
1834
            warn_altivec enabled PPC75x
1835
        ;;
1836
        G4|g4|745*|ppc745*|PowerPC745*)
1837
            add_cflags -mcpu=7450 -mpowerpc-gfxopt
1838
            warn_altivec disabled PPC745x
1839
        ;;
1840
        74*|ppc74*|PowerPC74*)
1841
            add_cflags -mcpu=7400 -mpowerpc-gfxopt
1842
            warn_altivec disabled PPC74xx
1843
        ;;
1844
        G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1845
            add_cflags -mcpu=970 -mpowerpc-gfxopt -mpowerpc64
1846
            warn_altivec disabled PPC970
1847
        ;;
1848
        Cell|CELL|cell)
1849
            add_cflags -mcpu=cell
1850
            warn_altivec disabled Cell
1851
            enable ldbrx
1852
        ;;
1853
        # targets that do NOT support conditional mov (cmov)
1854
        i[345]86|pentium|pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1855
            add_cflags -march=$cpu
1856
            disable cmov
1857
        ;;
1858
        # targets that do support conditional mov (cmov)
1859
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2)
1860
            add_cflags -march=$cpu
1861
            enable cmov
1862
            enable fast_cmov
1863
        ;;
1864
        # targets that do support conditional mov but on which it's slow
1865
        pentium4|pentium4m|prescott|nocona)
1866
            add_cflags -march=$cpu
1867
            enable cmov
1868
            disable fast_cmov
1869
        ;;
1870
        sparc64)
1871
            add_cflags -mcpu=v9
1872
        ;;
1873
        arm11*|cortex*)
1874
            add_cflags -mcpu=$cpu
1875
            enable fast_unaligned
1876
        ;;
1877
        armv[67]*)
1878
            add_cflags -march=$cpu
1879
            enable fast_unaligned
1880
        ;;
1881
        armv*)
1882
            add_cflags -march=$cpu
1883
        ;;
1884
        arm*)
1885
            add_cflags -mcpu=$cpu
1886
        ;;
1887
        ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1888
            enabled ccc && add_cflags -arch $cpu || add_cflags -mcpu=$cpu
1889
        ;;
1890
        bf*)
1891
            add_cflags -mcpu=$cpu
1892
        ;;
1893
        mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1894
            add_cflags -march=$cpu
1895
        ;;
1896
        *)
1897
            echo "WARNING: Unknown CPU \"$cpu\", ignored."
1898
        ;;
1899
    esac
1900
fi
1901

    
1902
check_cc <<EOF || die "Symbol mangling check failed."
1903
int ff_extern;
1904
EOF
1905
sym=$($nm -P -g $TMPO | grep ff_extern)
1906
extern_prefix=${sym%%ff_extern*}
1907

    
1908
check_cc <<EOF && enable inline_asm
1909
void foo(void) { __asm__ volatile ("" ::); }
1910
EOF
1911

    
1912
if enabled x86; then
1913
    # check whether EBP is available on x86
1914
    # As 'i' is stored on the stack, this program will crash
1915
    # if the base pointer is used to access it because the
1916
    # base pointer is cleared in the inline assembly code.
1917
    check_exec_crash <<EOF && enable ebp_available
1918
    volatile int i=0;
1919
    __asm__ volatile (
1920
        "xorl %%ebp, %%ebp"
1921
    ::: "%ebp");
1922
    return i;
1923
EOF
1924

    
1925
    # check wether EBX is available on x86
1926
    check_asm ebx_available '"":::"%ebx"'
1927

    
1928
    # check whether more than 10 operands are supported
1929
    check_cc <<EOF && enable ten_operands
1930
int main(void) {
1931
    int x=0;
1932
    __asm__ volatile(
1933
        ""
1934
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
1935
    );
1936
    return 0;
1937
}
1938
EOF
1939

    
1940
    # check whether binutils is new enough to compile SSSE3/MMX2
1941
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
1942
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
1943

    
1944
    check_asm bswap '"bswap %%eax" ::: "%eax"'
1945

    
1946
    YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
1947
    enabled     x86_64        && append YASMFLAGS "-m amd64"
1948
    enabled_all x86_64 shared && append YASMFLAGS "-DPIC"
1949
    case "$objformat" in
1950
        elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
1951
        macho64)              append YASMFLAGS "-DPIC -DPREFIX" ;;
1952
        *)                    append YASMFLAGS "-DPREFIX"  ;;
1953
    esac
1954
    disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
1955
fi
1956

    
1957
# check for assembler specific support
1958

    
1959
enabled mips && check_asm loongson '"dmult.g $1, $2, $3"'
1960

    
1961
enabled ppc && check_asm dcbzl '"dcbzl 0, 1"'
1962
enabled ppc && check_asm ppc4xx '"maclhw r10, r11, r12"'
1963
enabled ppc && check_asm xform_asm '"lwzx 0, %y0" :: "Z"(*(int*)0)'
1964

    
1965
# check for SIMD availability
1966

    
1967
# AltiVec flags: The FSF version of GCC differs from the Apple version
1968
if enabled altivec; then
1969
    check_cflags -maltivec -mabi=altivec &&
1970
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
1971
        check_cflags -faltivec
1972

    
1973
    # check if our compiler supports Motorola AltiVec C API
1974
    check_cc <<EOF || disable altivec
1975
$inc_altivec_h
1976
int main(void) {
1977
    vector signed int v1, v2, v3;
1978
    v1 = vec_add(v2,v3);
1979
    return 0;
1980
}
1981
EOF
1982

    
1983
    # check if our compiler supports braces for vector declarations
1984
    check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
1985
$inc_altivec_h
1986
int main (void) { (vector int) {1}; return 0; }
1987
EOF
1988
fi
1989

    
1990
# We have to check if pld is a nop and disable it.
1991
enabled arm     && check_asm pld     '"pld [r0]"'
1992
enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
1993
enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
1994
enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
1995
enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
1996
enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
1997
enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
1998
enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
1999
enabled vis     && check_asm vis     '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc
2000

    
2001
enabled vis && add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2002

    
2003
# ---
2004
# big/little-endian test
2005
check_cc <<EOF || die "endian test failed"
2006
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2007
EOF
2008
od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2009

    
2010
# ---
2011
# check availability of some header files
2012

    
2013
if check_func dlopen; then
2014
    ldl=
2015
elif check_func dlopen -ldl; then
2016
    ldl=-ldl
2017
fi
2018

    
2019
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2020
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2021

    
2022
check_func  fork
2023
check_func  gethrtime
2024
check_func  getrusage
2025
check_func  inet_aton $network_extralibs
2026
check_func  memalign
2027
check_func  mkstemp
2028
check_func  posix_memalign
2029
check_func_headers io.h setmode
2030
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2031
check_func_headers windows.h GetProcessTimes
2032
check_func_headers windows.h VirtualAlloc
2033

    
2034
check_header conio.h
2035
check_header dlfcn.h
2036
check_header malloc.h
2037
check_header poll.h
2038
check_header sys/mman.h
2039
check_header sys/resource.h
2040
check_header sys/select.h
2041
check_header termios.h
2042
check_header vdpau/vdpau.h
2043
check_header vdpau/vdpau_x11.h
2044
check_header X11/extensions/XvMClib.h
2045

    
2046
if ! enabled_any memalign memalign_hack posix_memalign && enabled need_memalign ; then
2047
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2048
fi
2049

    
2050
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2051
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2052

    
2053
# check for some common methods of building with pthread support
2054
# do this before the optional library checks as some of them require pthreads
2055
if enabled pthreads; then
2056
    if check_func pthread_create; then
2057
        :
2058
    elif check_func pthread_create -pthread; then
2059
        add_cflags -pthread
2060
        add_extralibs -pthread
2061
    elif check_func pthread_create -pthreads; then
2062
        add_cflags -pthreads
2063
        add_extralibs -pthreads
2064
    elif check_func pthread_create -lpthreadGC2; then
2065
        add_extralibs -lpthreadGC2
2066
    elif ! check_lib pthread.h pthread_create -lpthread; then
2067
        die "ERROR: can't find pthreads library"
2068
    fi
2069
fi
2070

    
2071
for thread in $THREADS_LIST; do
2072
    if enabled $thread; then
2073
        test -n "$thread_type" &&
2074
            die "ERROR: Only one thread type must be selected." ||
2075
            thread_type="$thread"
2076
    fi
2077
done
2078

    
2079
check_lib math.h sin -lm
2080
check_lib va/va.h vaInitialize -lva
2081

    
2082
# test for C99 functions in math.h
2083
for func in llrint log2 lrint lrintf round roundf truncf; do
2084
    check_exec <<EOF && enable $func || disable $func
2085
#include <math.h>
2086
int main(void) { return ($func(3.999f) > 0)?0:1; }
2087
EOF
2088
done
2089

    
2090
# these are off by default, so fail if requested and not available
2091
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2092
enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2093
                      require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init -ldirac_decoder &&
2094
                      require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init -ldirac_encoder
2095
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2096
enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2097
enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2098
enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2099
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2100
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2101
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2102
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2103
enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2104
                           require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2105
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2106
enabled libtheora  && require  libtheora theora/theora.h theora_info_init -ltheora -logg
2107
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2108
enabled libx264    && require  libx264 x264.h x264_encoder_open -lx264 -lm &&
2109
                      { check_cpp_condition x264.h "X264_BUILD >= 65" ||
2110
                        die "ERROR: libx264 version must be >= 0.65."; }
2111
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2112
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2113

    
2114
# libdc1394 check
2115
if enabled libdc1394; then
2116
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2117
        enable libdc1394_2; } ||
2118
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2119
        enable libdc1394_1; } ||
2120
    die "ERROR: No version of libdc1394 found "
2121
fi
2122

    
2123

    
2124
_restrict=
2125
for restrict_keyword in restrict __restrict__ __restrict; do
2126
    check_cc <<EOF && _restrict=$restrict_keyword && break
2127
void foo(char * $restrict_keyword p);
2128
EOF
2129
done
2130

    
2131
##########################################
2132
# SDL check
2133

    
2134
disable sdl_too_old
2135
disable sdl
2136
SDL_CONFIG="${cross_prefix}sdl-config"
2137
if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2138
    sdl_cflags=$("${SDL_CONFIG}" --cflags)
2139
    temp_cflags $sdl_cflags
2140
    temp_extralibs $("${SDL_CONFIG}" --libs)
2141
    if check_lib2 SDL.h SDL_Init; then
2142
        _sdlversion=$("${SDL_CONFIG}" --version | sed 's/[^0-9]//g')
2143
        if test "$_sdlversion" -lt 121 ; then
2144
            enable sdl_too_old
2145
        else
2146
            enable sdl
2147
            check_cc $sdl_cflags <<EOF && enable sdl_video_size
2148
#include <SDL.h>
2149
int main(int argc, char **argv){
2150
    const SDL_VideoInfo *vi = SDL_GetVideoInfo();
2151
    int w = vi->current_w;
2152
    return 0;
2153
}
2154
EOF
2155
        fi
2156
    fi
2157
    restore_flags
2158
fi
2159

    
2160
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2161

    
2162
##########################################
2163
# Network check
2164

    
2165
if enabled network; then
2166
    check_type "sys/types.h sys/socket.h" socklen_t
2167
    # Prefer arpa/inet.h over winsock2
2168
    if check_header arpa/inet.h ; then
2169
        check_func closesocket
2170
    elif check_header winsock2.h ; then
2171
        network_extralibs="-lws2_32"
2172
        check_type ws2tcpip.h socklen_t
2173
        check_func_headers winsock2.h closesocket
2174
    else
2175
        disable network
2176
    fi
2177
fi
2178

    
2179
##########################################
2180
# IPv6 check
2181

    
2182
enabled network && enabled ipv6 && check_ld <<EOF && enable ipv6 || disable ipv6
2183
#include <sys/types.h>
2184
#include <sys/socket.h>
2185
#include <netinet/in.h>
2186
#include <netdb.h>
2187
int main(void) {
2188
    struct sockaddr_storage saddr;
2189
    struct ipv6_mreq mreq6;
2190
    getaddrinfo(0,0,0,0);
2191
    getnameinfo(0,0,0,0,0,0,0);
2192
    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2193
}
2194
EOF
2195

    
2196
check_header linux/videodev.h
2197
check_header linux/videodev2.h
2198
check_header sys/videoio.h
2199

    
2200
check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2201

    
2202
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2203
{ check_header dev/bktr/ioctl_meteor.h &&
2204
  check_header dev/bktr/ioctl_bt848.h; } ||
2205
{ check_header machine/ioctl_meteor.h &&
2206
  check_header machine/ioctl_bt848.h; } ||
2207
{ check_header dev/video/meteor/ioctl_meteor.h &&
2208
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2209
check_header dev/ic/bt8xx.h
2210

    
2211
check_header sys/soundcard.h
2212
check_header soundcard.h
2213

    
2214
enabled alsa_demuxer || enabled alsa_muxer && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2215

    
2216
enabled jack_demuxer && check_lib2 jack/jack.h jack_client_open -ljack
2217

    
2218
# deal with the X11 frame grabber
2219
enabled x11grab                         &&
2220
check_header X11/Xlib.h                 &&
2221
check_header X11/extensions/XShm.h      &&
2222
check_func XOpenDisplay -lX11           &&
2223
check_func XShmCreateImage -lX11 -lXext
2224

    
2225
enabled debug && add_cflags -g"$debuglevel"
2226

    
2227
# add some useful compiler flags if supported
2228
check_cflags -Wdeclaration-after-statement
2229
check_cflags -Wall
2230
check_cflags -Wno-switch
2231
check_cflags -Wdisabled-optimization
2232
check_cflags -Wpointer-arith
2233
check_cflags -Wredundant-decls
2234
check_cflags -Wno-pointer-sign
2235
check_cflags -Wcast-qual
2236
check_cflags -Wwrite-strings
2237
check_cflags -Wtype-limits
2238
check_cflags -Wundef
2239
enabled extra_warnings && check_cflags -Winline
2240

    
2241
# add some linker flags
2242
check_ldflags -Wl,--warn-common
2243
check_ldflags -Wl,--as-needed
2244
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'
2245
check_ldflags -Wl,-Bsymbolic
2246

    
2247
if enabled small; then
2248
    check_cflags -Os            # not all compilers support -Os
2249
    optimizations="small"
2250
elif enabled optimizations; then
2251
    if enabled xlc; then
2252
        add_cflags  -O5
2253
        add_ldflags -O5
2254
    elif enabled ccc; then
2255
        add_cflags -fast
2256
    else
2257
        add_cflags -O3
2258
    fi
2259
fi
2260
check_cflags -fno-math-errno
2261
check_cflags -fno-signed-zeros
2262

    
2263
# add some flags for Intel C Compiler
2264
if enabled icc; then
2265
    # Just warnings, no remarks
2266
    check_cflags -w1
2267
    # -wd: Disable following warnings
2268
    # 144, 167, 556: -Wno-pointer-sign
2269
    # 10006: ignoring unknown option -fno-signed-zeros
2270
    # 10156: ignoring option '-W'; no argument required
2271
    check_cflags -wd144,167,556,10006,10156
2272
    # 11030: Warning unknown option --as-needed
2273
    # 10156: ignoring option '-export'; no argument required
2274
    check_ldflags -wd10156,11030
2275
    # Allow to compile with optimizations
2276
    check_ldflags -march=$cpu
2277
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2278
    enable ebp_available
2279
elif enabled ccc; then
2280
    # disable some annoying warnings
2281
    add_cflags -msg_disable cvtu32to64
2282
    add_cflags -msg_disable embedcomment
2283
    add_cflags -msg_disable needconstext
2284
    add_cflags -msg_disable nomainieee
2285
    add_cflags -msg_disable ptrmismatch1
2286
    add_cflags -msg_disable unreachcode
2287
fi
2288

    
2289
# PIC flags for shared library objects where they are needed
2290
if enabled shared; then
2291
    # LIBOBJFLAGS may have already been set in the OS configuration
2292
    if test -z "$LIBOBJFLAGS" ; then
2293
        case "${subarch-$arch}" in
2294
            x86_64|ia64|alpha|sparc*|power*|parisc*|mips*) LIBOBJFLAGS='$(PIC)' ;;
2295
        esac
2296
    fi
2297
fi
2298

    
2299
if enabled gprof; then
2300
    add_cflags  -p
2301
    add_ldflags -p
2302
fi
2303

    
2304
# Find out if the .align argument is a power of two or not.
2305
check_asm asmalign_pot '".align 3"'
2306

    
2307
enabled_any $DECODER_LIST      && enable decoders
2308
enabled_any $ENCODER_LIST      && enable encoders
2309
enabled_any $HWACCEL_LIST      && enable hwaccels
2310
enabled_any $BSF_LIST          && enable bsfs
2311
enabled_any $DEMUXER_LIST      && enable demuxers
2312
enabled_any $MUXER_LIST        && enable muxers
2313
enabled_any $FILTER_LIST       && enable filters
2314
enabled_any $INDEV_LIST        && enable demuxers
2315
enabled_any $OUTDEV_LIST       && enable muxers
2316
enabled_any $PROTOCOL_LIST     && enable protocols
2317

    
2318
enabled_any $THREADS_LIST      && enable threads
2319

    
2320
check_deps $CONFIG_LIST       \
2321
           $CONFIG_EXTRA      \
2322
           $HAVE_LIST         \
2323
           $DECODER_LIST      \
2324
           $ENCODER_LIST      \
2325
           $HWACCEL_LIST      \
2326
           $PARSER_LIST       \
2327
           $BSF_LIST          \
2328
           $DEMUXER_LIST      \
2329
           $MUXER_LIST        \
2330
           $FILTER_LIST       \
2331
           $INDEV_LIST        \
2332
           $OUTDEV_LIST       \
2333
           $PROTOCOL_LIST     \
2334

    
2335
echo "install prefix            $prefix"
2336
echo "source path               $source_path"
2337
echo "C compiler                $cc"
2338
echo ".align is power-of-two    $asmalign_pot"
2339
echo "ARCH                      $arch ($cpu)"
2340
if test "$build_suffix" != ""; then
2341
    echo "build suffix              $build_suffix"
2342
fi
2343
if test "$extra_version" != ""; then
2344
    echo "version string suffix     $extra_version"
2345
fi
2346
echo "big-endian                ${bigendian-no}"
2347
echo "runtime cpu detection     ${runtime_cpudetect-no}"
2348
if enabled x86; then
2349
    echo "yasm                      ${yasm-no}"
2350
    echo "MMX enabled               ${mmx-no}"
2351
    echo "MMX2 enabled              ${mmx2-no}"
2352
    echo "3DNow! enabled            ${amd3dnow-no}"
2353
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
2354
    echo "SSE enabled               ${sse-no}"
2355
    echo "SSSE3 enabled             ${ssse3-no}"
2356
    echo "CMOV enabled              ${cmov-no}"
2357
    echo "CMOV is fast              ${fast_cmov-no}"
2358
    echo "EBX available             ${ebx_available-no}"
2359
    echo "EBP available             ${ebp_available-no}"
2360
    echo "10 operands supported     ${ten_operands-no}"
2361
fi
2362
if enabled arm; then
2363
    echo "ARMv5TE enabled           ${armv5te-no}"
2364
    echo "ARMv6 enabled             ${armv6-no}"
2365
    echo "ARMv6T2 enabled           ${armv6t2-no}"
2366
    echo "ARM VFP enabled           ${armvfp-no}"
2367
    echo "IWMMXT enabled            ${iwmmxt-no}"
2368
    echo "NEON enabled              ${neon-no}"
2369
fi
2370
if enabled mips; then
2371
    echo "MMI enabled               ${mmi-no}"
2372
fi
2373
if enabled ppc; then
2374
    echo "AltiVec enabled           ${altivec-no}"
2375
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
2376
    echo "dcbzl available           ${dcbzl-no}"
2377
    echo "performance report        ${powerpc_perf-no}"
2378
fi
2379
if enabled sparc; then
2380
    echo "VIS enabled               ${vis-no}"
2381
fi
2382
echo "gprof enabled             ${gprof-no}"
2383
echo "debug symbols             ${debug-no}"
2384
echo "strip symbols             ${stripping-no}"
2385
echo "optimizations             ${optimizations-no}"
2386
echo "static                    ${static-no}"
2387
echo "shared                    ${shared-no}"
2388
echo "postprocessing support    ${postproc-no}"
2389
echo "new filter support        ${avfilter-no}"
2390
echo "filters using lavformat   ${avfilter_lavf-no}"
2391
echo "network support           ${network-no}"
2392
if enabled network; then
2393
    echo "IPv6 support              ${ipv6-no}"
2394
fi
2395
echo "threading support         ${thread_type-no}"
2396
echo "SDL support               ${sdl-no}"
2397
if enabled sdl_too_old; then
2398
    echo "-> Your SDL version is too old - please upgrade to have FFplay/SDL support."
2399
fi
2400
echo "Sun medialib support      ${mlib-no}"
2401
echo "AVISynth enabled          ${avisynth-no}"
2402
echo "libdc1394 support         ${libdc1394-no}"
2403
echo "libdirac enabled          ${libdirac-no}"
2404
echo "libfaac enabled           ${libfaac-no}"
2405
echo "libfaad enabled           ${libfaad-no}"
2406
echo "libfaad dlopened          ${libfaadbin-no}"
2407
echo "libgsm enabled            ${libgsm-no}"
2408
echo "libmp3lame enabled        ${libmp3lame-no}"
2409
echo "libnut enabled            ${libnut-no}"
2410
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2411
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2412
echo "libopenjpeg enabled       ${libopenjpeg-no}"
2413
echo "libschroedinger enabled   ${libschroedinger-no}"
2414
echo "libspeex enabled          ${libspeex-no}"
2415
echo "libtheora enabled         ${libtheora-no}"
2416
echo "libvorbis enabled         ${libvorbis-no}"
2417
echo "libx264 enabled           ${libx264-no}"
2418
echo "libxvid enabled           ${libxvid-no}"
2419
echo "zlib enabled              ${zlib-no}"
2420
echo "bzlib enabled             ${bzlib-no}"
2421
echo
2422

    
2423
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2424
    echo "Enabled ${type}s:"
2425
    eval list=\$$(toupper $type)_LIST
2426
    for part in $list; do
2427
        enabled $part && echo ${part%_*}
2428
    done | sort | pr -3 -t
2429
    echo
2430
done
2431

    
2432
license="LGPL version 2.1 or later"
2433
if enabled nonfree; then
2434
    license="nonfree and unredistributable"
2435
elif enabled gplv3; then
2436
    license="GPL version 3 or later"
2437
elif enabled lgplv3; then
2438
    license="LGPL version 3 or later"
2439
elif enabled gpl; then
2440
    license="GPL version 2 or later"
2441
fi
2442

    
2443
echo "License: $license"
2444

    
2445
echo "Creating config.mak and config.h..."
2446

    
2447
echo "# Automatically generated by configure - do not modify!" > config.mak
2448
echo "/* Automatically generated by configure - do not modify! */" > $TMPH
2449
echo "#ifndef FFMPEG_CONFIG_H" >> $TMPH
2450
echo "#define FFMPEG_CONFIG_H" >> $TMPH
2451
echo "#define FFMPEG_CONFIGURATION \"$(c_escape $FFMPEG_CONFIGURATION)\"" >> $TMPH
2452
echo "#define FFMPEG_DATADIR \"$(eval c_escape $datadir)\"" >> $TMPH
2453

    
2454
echo "FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION" >> config.mak
2455
echo "prefix=$prefix" >> config.mak
2456
echo "LIBDIR=\$(DESTDIR)$libdir" >> config.mak
2457
echo "SHLIBDIR=\$(DESTDIR)$shlibdir" >> config.mak
2458
echo "INCDIR=\$(DESTDIR)$incdir" >> config.mak
2459
echo "BINDIR=\$(DESTDIR)$bindir" >> config.mak
2460
echo "DATADIR=\$(DESTDIR)$datadir" >> config.mak
2461
echo "MANDIR=\$(DESTDIR)$mandir" >> config.mak
2462
echo "SRC_PATH=\"$source_path\"" >> config.mak
2463
echo "SRC_PATH_BARE=$source_path" >> config.mak
2464
echo "BUILD_ROOT=\"$PWD\"" >> config.mak
2465
echo "CC=$cc" >> config.mak
2466
echo "AS=$as" >> config.mak
2467
echo "YASM=$yasmexe" >> config.mak
2468
echo "AR=$ar" >> config.mak
2469
echo "RANLIB=$ranlib" >> config.mak
2470
echo "LN_S=$ln_s" >> config.mak
2471
enabled stripping &&
2472
    echo "STRIP=$strip" >> config.mak ||
2473
    echo "STRIP=echo ignoring strip" >> config.mak
2474

    
2475
echo "OPTFLAGS=$CFLAGS" >> config.mak
2476
echo "LDFLAGS=$LDFLAGS" >> config.mak
2477
echo "FFSERVERLDFLAGS=$FFSERVERLDFLAGS" >> config.mak
2478
echo "SHFLAGS=$SHFLAGS" >> config.mak
2479
echo "YASMFLAGS=$YASMFLAGS" >> config.mak
2480
echo "LIBOBJFLAGS=$LIBOBJFLAGS" >> config.mak
2481
echo "BUILD_STATIC=$static" >> config.mak
2482
echo "BUILDSUF=$build_suffix" >> config.mak
2483
echo "FULLNAME=$FULLNAME" >> config.mak
2484
echo "LIBPREF=$LIBPREF" >> config.mak
2485
echo "LIBSUF=$LIBSUF" >> config.mak
2486
echo "LIBNAME=$LIBNAME" >> config.mak
2487
echo "SLIBPREF=$SLIBPREF" >> config.mak
2488
echo "SLIBSUF=$SLIBSUF" >> config.mak
2489
echo "EXESUF=$EXESUF" >> config.mak
2490
echo "EXTRA_VERSION=$extra_version" >> config.mak
2491
echo "DEPEND_CMD=$DEPEND_CMD" >> config.mak
2492
echo "HOSTCC=$host_cc" >> config.mak
2493
echo "HOSTCFLAGS=$host_cflags" >> config.mak
2494
echo "HOSTEXESUF=$HOSTEXESUF" >> config.mak
2495
echo "HOSTLDFLAGS=$host_ldflags" >> config.mak
2496
echo "HOSTLIBS=$host_libs" >> config.mak
2497
echo "TARGET_EXEC=$target_exec" >> config.mak
2498
echo "TARGET_PATH=$target_path" >> config.mak
2499

    
2500
if enabled bigendian; then
2501
    echo "WORDS_BIGENDIAN=yes" >> config.mak
2502
    echo "#define WORDS_BIGENDIAN 1" >> $TMPH
2503
fi
2504

    
2505
if enabled sdl; then
2506
    echo "SDL_LIBS=$("${SDL_CONFIG}" --libs)" >> config.mak
2507
    echo "SDL_CFLAGS=$("${SDL_CONFIG}" --cflags)" >> config.mak
2508
fi
2509
if enabled texi2html; then
2510
    echo "BUILD_DOC=yes" >> config.mak
2511
fi
2512

    
2513
get_version(){
2514
    name=$1
2515
    file=$source_path/$2
2516
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2517
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2518
    lcname=$(tolower $name)
2519
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2520
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2521
}
2522

    
2523
get_version LIBSWSCALE  libswscale/swscale.h
2524
get_version LIBPOSTPROC libpostproc/postprocess.h
2525
get_version LIBAVCODEC  libavcodec/avcodec.h
2526
get_version LIBAVDEVICE libavdevice/avdevice.h
2527
get_version LIBAVFORMAT libavformat/avformat.h
2528
get_version LIBAVUTIL   libavutil/avutil.h
2529
get_version LIBAVFILTER libavfilter/avfilter.h
2530

    
2531
if enabled shared; then
2532
    echo "BUILD_SHARED=yes" >> config.mak
2533
    echo "PIC=-fPIC -DPIC" >> config.mak
2534
    echo "LIBTARGET=${LIBTARGET}" >> config.mak
2535
    echo "SLIBNAME=${SLIBNAME}" >> config.mak
2536
    echo "SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}" >> config.mak
2537
    echo "SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}" >> config.mak
2538
    echo "SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}" >> config.mak
2539
    echo "SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}" >> config.mak
2540
    echo "SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}" >> config.mak
2541
    echo "SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}" >> config.mak
2542
fi
2543
echo "LIB_INSTALL_EXTRA_CMD=${LIB_INSTALL_EXTRA_CMD}" >> config.mak
2544
echo "EXTRALIBS=$extralibs" >> config.mak
2545

    
2546
echo "ARCH=$arch" >> config.mak
2547

    
2548
print_config ARCH_   $TMPH config.mak $ARCH_LIST
2549
print_config HAVE_   $TMPH config.mak $HAVE_LIST
2550
print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2551
                                      $CONFIG_EXTRA      \
2552
                                      $DECODER_LIST      \
2553
                                      $ENCODER_LIST      \
2554
                                      $HWACCEL_LIST      \
2555
                                      $PARSER_LIST       \
2556
                                      $BSF_LIST          \
2557
                                      $DEMUXER_LIST      \
2558
                                      $MUXER_LIST        \
2559
                                      $FILTER_LIST       \
2560
                                      $PROTOCOL_LIST     \
2561
                                      $INDEV_LIST        \
2562
                                      $OUTDEV_LIST       \
2563

    
2564
echo "#define restrict $_restrict" >> $TMPH
2565

    
2566
if enabled small; then
2567
    echo "#define av_always_inline"  >> $TMPH
2568
fi
2569

    
2570

    
2571
# Apparently it's not possible to portably echo a backslash.
2572
enabled asmalign_pot &&
2573
    printf '#define ASMALIGN(ZEROBITS) ".align " #ZEROBITS "\\n\\t"\n' >> $TMPH ||
2574
    printf '#define ASMALIGN(ZEROBITS) ".align 1 << " #ZEROBITS "\\n\\t"\n' >> $TMPH
2575

    
2576
echo "#define EXTERN_PREFIX \"${extern_prefix}\"" >> $TMPH
2577

    
2578
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2579

    
2580
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2581
cmp -s $TMPH config.h &&
2582
    echo "config.h is unchanged" ||
2583
    mv -f $TMPH config.h
2584

    
2585
# build tree in object directory if source path is different from current one
2586
if enabled source_path_used; then
2587
    DIRS="\
2588
        doc               \
2589
        libavcodec        \
2590
        libavcodec/alpha  \
2591
        libavcodec/arm    \
2592
        libavcodec/bfin   \
2593
        libavcodec/mlib   \
2594
        libavcodec/ppc    \
2595
        libavcodec/sh4    \
2596
        libavcodec/sparc  \
2597
        libavcodec/x86    \
2598
        libavdevice       \
2599
        libavfilter       \
2600
        libavformat       \
2601
        libavutil         \
2602
        libpostproc       \
2603
        libswscale        \
2604
        libswscale/bfin   \
2605
        libswscale/mlib   \
2606
        libswscale/ppc    \
2607
        libswscale/sparc  \
2608
        libswscale/x86    \
2609
        tests             \
2610
        tools             \
2611
        "
2612
    FILES="\
2613
        Makefile             \
2614
        common.mak           \
2615
        subdir.mak           \
2616
        doc/texi2pod.pl      \
2617
        libavcodec/Makefile  \
2618
        libavdevice/Makefile \
2619
        libavfilter/Makefile \
2620
        libavformat/Makefile \
2621
        libavutil/Makefile   \
2622
        libpostproc/Makefile \
2623
        libswscale/Makefile  \
2624
        "
2625
    for dir in $DIRS ; do
2626
        mkdir -p $dir
2627
    done
2628
    for f in $FILES ; do
2629
        $ln_s "$source_path/$f" $f
2630
    done
2631
fi
2632

    
2633

    
2634
# build pkg-config files
2635

    
2636
pkgconfig_generate(){
2637
name=$1
2638
shortname=${name#lib}${build_suffix}
2639
comment=$2
2640
version=$3
2641
libs=$4
2642
requires=$5
2643
cat <<EOF > $name/$name.pc
2644
prefix=$prefix
2645
exec_prefix=\${prefix}
2646
libdir=$libdir
2647
includedir=$incdir
2648

    
2649
Name: $name
2650
Description: $comment
2651
Version: $version
2652
Requires: $(disabled shared && echo $requires)
2653
Requires.private: $(enabled shared && echo $requires)
2654
Conflicts:
2655
Libs: -L\${libdir} -l${shortname} $(disabled shared && echo $libs)
2656
Libs.private: $(enabled shared && echo $libs)
2657
Cflags: -I\${includedir}
2658
EOF
2659
cat <<EOF > $name/$name-uninstalled.pc
2660
prefix=
2661
exec_prefix=
2662
libdir=\${pcfiledir}
2663
includedir=${source_path}
2664

    
2665
Name: $name
2666
Description: $comment
2667
Version: $version
2668
Requires: $requires
2669
Conflicts:
2670
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2671
Cflags: -I\${includedir}
2672
EOF
2673
}
2674

    
2675
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2676
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2677
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2678
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2679
enabled avfilter &&
2680
    pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2681
enabled postproc &&
2682
    pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2683
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"