git.sesse.net Git - ffmpeg/blob - configure

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swresample     disable libswresample build
  91   --disable-swscale        disable libswscale build
  92   --disable-postproc       disable libpostproc build
  93   --disable-avfilter       disable video filter support [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --disable-w32threads     disable Win32 threads [auto]
  96   --disable-os2threads     disable OS/2 threads [auto]
  97   --enable-x11grab         enable X11 grabbing [no]
  98   --disable-network        disable network support [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-huffman        disable Huffman code
 108   --disable-lpc            disable LPC code
 109   --disable-mdct           disable MDCT code
 110   --disable-rdft           disable RDFT code
 111   --enable-vaapi           enable VAAPI code [autodetect]
 112   --enable-vda             enable VDA code [autodetect]
 113   --enable-vdpau           enable VDPAU code [autodetect]
 114   --disable-dxva2          disable DXVA2 code
 115   --disable-vda            disable VDA code
 116   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 117   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 118   --disable-safe-bitstream-reader
 119                            disable buffer boundary checking in bitreaders
 120                            (faster, but may crash)
 121   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 122   --disable-everything     disable all components listed below
 123   --disable-encoder=NAME   disable encoder NAME
 124   --enable-encoder=NAME    enable encoder NAME
 125   --disable-encoders       disable all encoders
 126   --disable-decoder=NAME   disable decoder NAME
 127   --enable-decoder=NAME    enable decoder NAME
 128   --disable-decoders       disable all decoders
 129   --disable-hwaccel=NAME   disable hwaccel NAME
 130   --enable-hwaccel=NAME    enable hwaccel NAME
 131   --disable-hwaccels       disable all hwaccels
 132   --disable-muxer=NAME     disable muxer NAME
 133   --enable-muxer=NAME      enable muxer NAME
 134   --disable-muxers         disable all muxers
 135   --disable-demuxer=NAME   disable demuxer NAME
 136   --enable-demuxer=NAME    enable demuxer NAME
 137   --disable-demuxers       disable all demuxers
 138   --enable-parser=NAME     enable parser NAME
 139   --disable-parser=NAME    disable parser NAME
 140   --disable-parsers        disable all parsers
 141   --enable-bsf=NAME        enable bitstream filter NAME
 142   --disable-bsf=NAME       disable bitstream filter NAME
 143   --disable-bsfs           disable all bitstream filters
 144   --enable-protocol=NAME   enable protocol NAME
 145   --disable-protocol=NAME  disable protocol NAME
 146   --disable-protocols      disable all protocols
 147   --disable-indev=NAME     disable input device NAME
 148   --disable-outdev=NAME    disable output device NAME
 149   --disable-indevs         disable input devices
 150   --disable-outdevs        disable output devices
 151   --disable-devices        disable all devices
 152   --enable-filter=NAME     enable filter NAME
 153   --disable-filter=NAME    disable filter NAME
 154   --disable-filters        disable all filters
 155   --list-decoders          show all available decoders
 156   --list-encoders          show all available encoders
 157   --list-hwaccels          show all available hardware accelerators
 158   --list-muxers            show all available muxers
 159   --list-demuxers          show all available demuxers
 160   --list-parsers           show all available parsers
 161   --list-protocols         show all available protocols
 162   --list-bsfs              show all available bitstream filters
 163   --list-indevs            show all available input devices
 164   --list-outdevs           show all available output devices
 165   --list-filters           show all available filters
 166
 167 External library support:
 168   --enable-avisynth        enable reading of AVISynth script files [no]
 169   --enable-bzlib           enable bzlib [autodetect]
 170   --enable-frei0r          enable frei0r video filtering
 171   --enable-gnutls          enable gnutls [no]
 172   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 173   --enable-libass          enable libass subtitles rendering [no]
 174   --enable-libcelt         enable CELT decoding via libcelt [no]
 175   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 176   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 177   --enable-libopencv       enable video filtering via libopencv [no]
 178   --enable-libcdio         enable audio CD grabbing with libcdio
 179   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 180                            and libraw1394 [no]
 181   --enable-libdirac        enable Dirac support via libdirac [no]
 182   --enable-libfaac         enable FAAC support via libfaac [no]
 183   --enable-libfreetype     enable libfreetype [no]
 184   --enable-libgsm          enable GSM support via libgsm [no]
 185   --enable-libmodplug      enable ModPlug via libmodplug [no]
 186   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 187   --enable-libnut          enable NUT (de)muxing via libnut,
 188                            native (de)muxer exists [no]
 189   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [no]
 190   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 191   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 192   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 193   --enable-libspeex        enable Speex support via libspeex [no]
 194   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 195   --enable-libtheora       enable Theora encoding via libtheora [no]
 196   --enable-libutvideo      enable Ut Video decoding via libutvideo [no]
 197   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 198   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 199   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 200   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 201                            native implementation exists [no]
 202   --enable-libvpx          enable VP8 support via libvpx [no]
 203   --enable-libx264         enable H.264 encoding via x264 [no]
 204   --enable-libxavs         enable AVS encoding via xavs [no]
 205   --enable-libxvid         enable Xvid encoding via xvidcore,
 206                            native MPEG-4/Xvid encoder exists [no]
 207   --enable-openal          enable OpenAL 1.1 capture support [no]
 208   --enable-mlib            enable Sun medialib [no]
 209   --enable-openssl         enable openssl [no]
 210   --enable-zlib            enable zlib [autodetect]
 211
 212 Advanced options (experts only):
 213   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 214   --enable-cross-compile   assume a cross-compiler is used
 215   --sysroot=PATH           root of cross-build tree
 216   --sysinclude=PATH        location of cross-build system headers
 217   --target-os=OS           compiler targets OS [$target_os]
 218   --target-exec=CMD        command to run executables on target
 219   --target-path=DIR        path to view of build directory on target
 220   --nm=NM                  use nm tool NM [$nm_default]
 221   --ar=AR                  use archive tool AR [$ar_default]
 222   --as=AS                  use assembler AS [$as_default]
 223   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 224   --cc=CC                  use C compiler CC [$cc_default]
 225   --cxx=CXX                use C compiler CXX [$cxx_default]
 226   --ld=LD                  use linker LD [$ld_default]
 227   --host-cc=HOSTCC         use host C compiler HOSTCC
 228   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 229   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 230   --host-libs=HLIBS        use libs HLIBS when linking for host
 231   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 232   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 233   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 234   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 235   --extra-version=STRING   version string suffix []
 236   --build-suffix=SUFFIX    library name suffix []
 237   --progs-suffix=SUFFIX    program name suffix []
 238   --arch=ARCH              select architecture [$arch]
 239   --cpu=CPU                select the minimum required CPU (affects
 240                            instruction selection, may crash on older CPUs)
 241   --disable-asm            disable all assembler optimizations
 242   --disable-altivec        disable AltiVec optimizations
 243   --disable-amd3dnow       disable 3DNow! optimizations
 244   --disable-amd3dnowext    disable 3DNow! extended optimizations
 245   --disable-mmx            disable MMX optimizations
 246   --disable-mmx2           disable MMX2 optimizations
 247   --disable-sse            disable SSE optimizations
 248   --disable-ssse3          disable SSSE3 optimizations
 249   --disable-avx            disable AVX optimizations
 250   --disable-armv5te        disable armv5te optimizations
 251   --disable-armv6          disable armv6 optimizations
 252   --disable-armv6t2        disable armv6t2 optimizations
 253   --disable-armvfp         disable ARM VFP optimizations
 254   --disable-iwmmxt         disable iwmmxt optimizations
 255   --disable-mmi            disable MMI optimizations
 256   --disable-neon           disable NEON optimizations
 257   --disable-vis            disable VIS optimizations
 258   --disable-yasm           disable use of yasm assembler
 259   --enable-pic             build position-independent code
 260   --malloc-prefix=PFX      prefix malloc and related names with PFX
 261   --enable-sram            allow use of on-chip SRAM
 262   --disable-symver         disable symbol versioning
 263   --optflags               override optimization-related compiler flags
 264   --postproc-version=V     build libpostproc version V.
 265                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 266
 267 Developer options (useful when working on FFmpeg itself):
 268   --enable-coverage        build with test coverage instrumentation
 269   --disable-debug          disable debugging symbols
 270   --enable-debug=LEVEL     set the debug level [$debuglevel]
 271   --disable-optimizations  disable compiler optimizations
 272   --enable-extra-warnings  enable more compiler warnings
 273   --disable-stripping      disable stripping of executables and shared libraries
 274   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 275                            leaks and errors, using the specified valgrind binary.
 276                            Cannot be combined with --target-exec
 277   --samples=PATH           location of test samples for FATE, if not set use
 278                            \$FATE_SAMPLES at make invocation time.
 279   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 280                            should be used only for debugging purposes)
 281
 282 NOTE: Object files are built at the place where configure is launched.
 283 EOF
 284   exit 0
 285 }
 286
 287 quotes='""'
 288
 289 log(){
 290     echo "$@" >> $logfile
 291 }
 292
 293 log_file(){
 294     log BEGIN $1
 295     pr -n -t $1 >> $logfile
 296     log END $1
 297 }
 298
 299 echolog(){
 300     log "$@"
 301     echo "$@"
 302 }
 303
 304 warn(){
 305     log "WARNING: $*"
 306     WARNINGS="${WARNINGS}WARNING: $*\n"
 307 }
 308
 309 die(){
 310     echolog "$@"
 311     cat <<EOF
 312
 313 If you think configure made a mistake, make sure you are using the latest
 314 version from Git.  If the latest version fails, report the problem to the
 315 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 316 EOF
 317     if disabled logging; then
 318         cat <<EOF
 319 Rerun configure with logging enabled (do not use --disable-logging), and
 320 include the log this produces with your report.
 321 EOF
 322     else
 323 cat <<EOF
 324 Include the log file "$logfile" produced by configure as this will help
 325 solving the problem.
 326 EOF
 327     fi
 328     exit 1
 329 }
 330
 331 # Avoid locale weirdness, besides we really just want to translate ASCII.
 332 toupper(){
 333     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 334 }
 335
 336 tolower(){
 337     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 338 }
 339
 340 c_escape(){
 341     echo "$*" | sed 's/["\\]/\\\0/g'
 342 }
 343
 344 sh_quote(){
 345     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 346     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 347     echo "$v"
 348 }
 349
 350 cleanws(){
 351     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 352 }
 353
 354 filter(){
 355     pat=$1
 356     shift
 357     for v; do
 358         eval "case $v in $pat) echo $v ;; esac"
 359     done
 360 }
 361
 362 filter_out(){
 363     pat=$1
 364     shift
 365     for v; do
 366         eval "case $v in $pat) ;; *) echo $v ;; esac"
 367     done
 368 }
 369
 370 map(){
 371     m=$1
 372     shift
 373     for v; do eval $m; done
 374 }
 375
 376 set_all(){
 377     value=$1
 378     shift
 379     for var in $*; do
 380         eval $var=$value
 381     done
 382 }
 383
 384 set_weak(){
 385     value=$1
 386     shift
 387     for var; do
 388         eval : \${$var:=$value}
 389     done
 390 }
 391
 392 set_safe(){
 393     var=$1
 394     shift
 395     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 396 }
 397
 398 get_safe(){
 399     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 400 }
 401
 402 pushvar(){
 403     for var in $*; do
 404         eval level=\${${var}_level:=0}
 405         eval ${var}_${level}="\$$var"
 406         eval ${var}_level=$(($level+1))
 407     done
 408 }
 409
 410 popvar(){
 411     for var in $*; do
 412         eval level=\${${var}_level:-0}
 413         test $level = 0 && continue
 414         eval level=$(($level-1))
 415         eval $var="\${${var}_${level}}"
 416         eval ${var}_level=$level
 417         eval unset ${var}_${level}
 418     done
 419 }
 420
 421 enable(){
 422     set_all yes $*
 423 }
 424
 425 disable(){
 426     set_all no $*
 427 }
 428
 429 enable_weak(){
 430     set_weak yes $*
 431 }
 432
 433 disable_weak(){
 434     set_weak no $*
 435 }
 436
 437 enable_safe(){
 438     for var; do
 439         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 440     done
 441 }
 442
 443 disable_safe(){
 444     for var; do
 445         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 446     done
 447 }
 448
 449 do_enable_deep(){
 450     for var; do
 451         enabled $var && continue
 452         eval sel="\$${var}_select"
 453         eval sgs="\$${var}_suggest"
 454         pushvar var sgs
 455         enable_deep $sel
 456         popvar sgs
 457         enable_deep_weak $sgs
 458         popvar var
 459     done
 460 }
 461
 462 enable_deep(){
 463     do_enable_deep $*
 464     enable $*
 465 }
 466
 467 enable_deep_weak(){
 468     do_enable_deep $*
 469     enable_weak $*
 470 }
 471
 472 enabled(){
 473     test "${1#!}" = "$1" && op== || op=!=
 474     eval test "x\$${1#!}" $op "xyes"
 475 }
 476
 477 disabled(){
 478     test "${1#!}" = "$1" && op== || op=!=
 479     eval test "x\$${1#!}" $op "xno"
 480 }
 481
 482 enabled_all(){
 483     for opt; do
 484         enabled $opt || return 1
 485     done
 486 }
 487
 488 disabled_all(){
 489     for opt; do
 490         disabled $opt || return 1
 491     done
 492 }
 493
 494 enabled_any(){
 495     for opt; do
 496         enabled $opt && return 0
 497     done
 498 }
 499
 500 disabled_any(){
 501     for opt; do
 502         disabled $opt && return 0
 503     done
 504     return 1
 505 }
 506
 507 set_default(){
 508     for opt; do
 509         eval : \${$opt:=\$${opt}_default}
 510     done
 511 }
 512
 513 is_in(){
 514     value=$1
 515     shift
 516     for var in $*; do
 517         [ $var = $value ] && return 0
 518     done
 519     return 1
 520 }
 521
 522 check_deps(){
 523     for cfg; do
 524         cfg="${cfg#!}"
 525         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 526         disabled ${cfg}_checking && continue
 527         enable ${cfg}_checking
 528
 529         eval dep_all="\$${cfg}_deps"
 530         eval dep_any="\$${cfg}_deps_any"
 531         eval dep_sel="\$${cfg}_select"
 532         eval dep_sgs="\$${cfg}_suggest"
 533         eval dep_ifa="\$${cfg}_if"
 534         eval dep_ifn="\$${cfg}_if_any"
 535
 536         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 537         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 538         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 539
 540         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 541         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 542         enabled_all  $dep_all || disable $cfg
 543         enabled_any  $dep_any || disable $cfg
 544         disabled_any $dep_sel && disable $cfg
 545
 546         if enabled $cfg; then
 547             eval dep_extralibs="\$${cfg}_extralibs"
 548             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 549             enable_deep $dep_sel
 550             enable_deep_weak $dep_sgs
 551         fi
 552
 553         disable ${cfg}_checking
 554     done
 555 }
 556
 557 print_config_h(){
 558     enabled $1 && v=1 || v=0
 559     echo "#define $2 $v"
 560 }
 561
 562 print_config_mak(){
 563     enabled $1 && v= || v=!
 564     echo "$v$2=yes"
 565 }
 566
 567 print_config_asm(){
 568     enabled $1 && v=1 || v=0
 569     echo "%define $2 $v"
 570 }
 571
 572 print_config(){
 573     pfx=$1
 574     files=$2
 575     shift 2
 576     for cfg; do
 577         ucname="$(toupper $cfg)"
 578         for f in $files; do
 579             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 580         done
 581     done
 582 }
 583
 584 print_enabled(){
 585     test "$1" = -n && end=" " && shift || end="\n"
 586     suf=$1
 587     shift
 588     for v; do
 589         enabled $v && printf "%s$end" ${v%$suf};
 590     done
 591 }
 592
 593 append(){
 594     var=$1
 595     shift
 596     eval "$var=\"\$$var $*\""
 597 }
 598
 599 prepend(){
 600     var=$1
 601     shift
 602     eval "$var=\"$* \$$var\""
 603 }
 604
 605 add_cppflags(){
 606     append CPPFLAGS $($filter_cppflags "$@")
 607 }
 608
 609 add_cflags(){
 610     append CFLAGS $($filter_cflags "$@")
 611 }
 612
 613 add_cxxflags(){
 614     append CXXFLAGS $($filter_cflags "$@")
 615 }
 616
 617 add_asflags(){
 618     append ASFLAGS $($filter_asflags "$@")
 619 }
 620
 621 add_ldflags(){
 622     append LDFLAGS "$@"
 623 }
 624
 625 add_extralibs(){
 626     prepend extralibs "$@"
 627 }
 628
 629 check_cmd(){
 630     log "$@"
 631     "$@" >> $logfile 2>&1
 632 }
 633
 634 check_cc(){
 635     log check_cc "$@"
 636     cat > $TMPC
 637     log_file $TMPC
 638     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 639 }
 640
 641 check_cxx(){
 642     log check_cxx "$@"
 643     cat > $TMPCPP
 644     log_file $TMPCPP
 645     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 646 }
 647
 648 check_cpp(){
 649     log check_cpp "$@"
 650     cat > $TMPC
 651     log_file $TMPC
 652     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 653 }
 654
 655 check_as(){
 656     log check_as "$@"
 657     cat > $TMPC
 658     log_file $TMPC
 659     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 660 }
 661
 662 check_asm(){
 663     log check_asm "$@"
 664     name="$1"
 665     code="$2"
 666     shift 2
 667     disable $name
 668     check_as "$@" <<EOF && enable $name
 669 void foo(void){ __asm__ volatile($code); }
 670 EOF
 671 }
 672
 673 check_yasm(){
 674     log check_yasm "$@"
 675     echo "$1" > $TMPS
 676     log_file $TMPS
 677     shift 1
 678     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 679 }
 680
 681 check_ld(){
 682     log check_ld "$@"
 683     type=$1
 684     shift 1
 685     flags=''
 686     libs=''
 687     for f; do
 688         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 689     done
 690     check_$type $($filter_cflags $flags) || return
 691     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 692 }
 693
 694 check_cppflags(){
 695     log check_cppflags "$@"
 696     set -- $($filter_cppflags "$@")
 697     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 698 int x;
 699 EOF
 700 }
 701
 702 check_cflags(){
 703     log check_cflags "$@"
 704     set -- $($filter_cflags "$@")
 705     check_cc "$@" <<EOF && append CFLAGS "$@"
 706 int x;
 707 EOF
 708 }
 709
 710 check_cxxflags(){
 711     log check_cxxflags "$@"
 712     set -- $($filter_cflags "$@")
 713     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 714 int x;
 715 EOF
 716 }
 717
 718 test_ldflags(){
 719     log test_ldflags "$@"
 720     check_ld "cc" "$@" <<EOF
 721 int main(void){ return 0; }
 722 EOF
 723 }
 724
 725 check_ldflags(){
 726     log check_ldflags "$@"
 727     test_ldflags "$@" && add_ldflags "$@"
 728 }
 729
 730 check_header(){
 731     log check_header "$@"
 732     header=$1
 733     shift
 734     disable_safe $header
 735     check_cpp "$@" <<EOF && enable_safe $header
 736 #include <$header>
 737 int x;
 738 EOF
 739 }
 740
 741 check_func(){
 742     log check_func "$@"
 743     func=$1
 744     shift
 745     disable $func
 746     check_ld "cc" "$@" <<EOF && enable $func
 747 extern int $func();
 748 int main(void){ $func(); }
 749 EOF
 750 }
 751
 752 check_mathfunc(){
 753     log check_mathfunc "$@"
 754     func=$1
 755     shift
 756     disable $func
 757     check_ld "cc" "$@" <<EOF && enable $func
 758 #include <math.h>
 759 float foo(float f) { return $func(f); }
 760 int main(void){ return (int) foo; }
 761 EOF
 762 }
 763
 764 check_func_headers(){
 765     log check_func_headers "$@"
 766     headers=$1
 767     funcs=$2
 768     shift 2
 769     {
 770         for hdr in $headers; do
 771             echo "#include <$hdr>"
 772         done
 773         for func in $funcs; do
 774             echo "long check_$func(void) { return (long) $func; }"
 775         done
 776         echo "int main(void) { return 0; }"
 777     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 778 }
 779
 780 check_class_headers_cpp(){
 781     log check_class_headers_cpp "$@"
 782     headers=$1
 783     classes=$2
 784     shift 2
 785     {
 786         for hdr in $headers; do
 787             echo "#include <$hdr>"
 788         done
 789         echo "int main(void) { "
 790         i=1
 791         for class in $classes; do
 792             echo "$class obj$i;"
 793             i=$(expr $i + 1)
 794         done
 795         echo "return 0; }"
 796     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 797 }
 798
 799 check_cpp_condition(){
 800     log check_cpp_condition "$@"
 801     header=$1
 802     condition=$2
 803     shift 2
 804     check_cpp $($filter_cppflags "$@") <<EOF
 805 #include <$header>
 806 #if !($condition)
 807 #error "unsatisfied condition: $condition"
 808 #endif
 809 EOF
 810 }
 811
 812 check_lib(){
 813     log check_lib "$@"
 814     header="$1"
 815     func="$2"
 816     shift 2
 817     check_header $header && check_func $func "$@" && add_extralibs "$@"
 818 }
 819
 820 check_lib2(){
 821     log check_lib2 "$@"
 822     headers="$1"
 823     funcs="$2"
 824     shift 2
 825     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 826 }
 827
 828 check_lib_cpp(){
 829     log check_lib_cpp "$@"
 830     headers="$1"
 831     classes="$2"
 832     shift 2
 833     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 834 }
 835
 836 check_pkg_config(){
 837     log check_pkg_config "$@"
 838     pkg="$1"
 839     headers="$2"
 840     funcs="$3"
 841     shift 3
 842     $pkg_config --exists $pkg 2>/dev/null || return
 843     pkg_cflags=$($pkg_config --cflags $pkg)
 844     pkg_libs=$($pkg_config --libs $pkg)
 845     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 846         set_safe ${pkg}_cflags $pkg_cflags   &&
 847         set_safe ${pkg}_libs   $pkg_libs
 848 }
 849
 850 check_exec(){
 851     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 852 }
 853
 854 check_exec_crash(){
 855     code=$(cat)
 856
 857     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 858     # are safe but may not be available everywhere.  Thus we use
 859     # raise(SIGTERM) instead.  The check is run in a subshell so we
 860     # can redirect the "Terminated" message from the shell.  SIGBUS
 861     # is not defined by standard C so it is used conditionally.
 862
 863     (check_exec "$@") >> $logfile 2>&1 <<EOF
 864 #include <signal.h>
 865 static void sighandler(int sig){
 866     raise(SIGTERM);
 867 }
 868 int func(void){
 869     $code
 870 }
 871 int main(void){
 872     signal(SIGILL, sighandler);
 873     signal(SIGFPE, sighandler);
 874     signal(SIGSEGV, sighandler);
 875 #ifdef SIGBUS
 876     signal(SIGBUS, sighandler);
 877 #endif
 878     return func();
 879 }
 880 EOF
 881 }
 882
 883 check_type(){
 884     log check_type "$@"
 885     headers=$1
 886     type=$2
 887     shift 2
 888     disable_safe "$type"
 889     incs=""
 890     for hdr in $headers; do
 891         incs="$incs
 892 #include <$hdr>"
 893     done
 894     check_cc "$@" <<EOF && enable_safe "$type"
 895 $incs
 896 $type v;
 897 EOF
 898 }
 899
 900 check_struct(){
 901     log check_type "$@"
 902     headers=$1
 903     struct=$2
 904     member=$3
 905     shift 3
 906     disable_safe "${struct}_${member}"
 907     incs=""
 908     for hdr in $headers; do
 909         incs="$incs
 910 #include <$hdr>"
 911     done
 912     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 913 $incs
 914 const void *p = &(($struct *)0)->$member;
 915 EOF
 916 }
 917
 918 require(){
 919     name="$1"
 920     header="$2"
 921     func="$3"
 922     shift 3
 923     check_lib $header $func "$@" || die "ERROR: $name not found"
 924 }
 925
 926 require2(){
 927     name="$1"
 928     headers="$2"
 929     func="$3"
 930     shift 3
 931     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 932 }
 933
 934 require_cpp(){
 935     name="$1"
 936     headers="$2"
 937     classes="$3"
 938     shift 3
 939     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 940 }
 941
 942 require_pkg_config(){
 943     pkg="$1"
 944     check_pkg_config "$@" || die "ERROR: $pkg not found"
 945     add_cflags    $(get_safe ${pkg}_cflags)
 946     add_extralibs $(get_safe ${pkg}_libs)
 947 }
 948
 949 check_host_cc(){
 950     log check_host_cc "$@"
 951     cat > $TMPC
 952     log_file $TMPC
 953     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 954 }
 955
 956 check_host_cflags(){
 957     log check_host_cflags "$@"
 958     check_host_cc "$@" <<EOF && append host_cflags "$@"
 959 int x;
 960 EOF
 961 }
 962
 963 apply(){
 964     file=$1
 965     shift
 966     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 967 }
 968
 969 cp_if_changed(){
 970     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 971     mkdir -p "$(dirname $2)"
 972     cp -f "$1" "$2"
 973 }
 974
 975 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 976 # system-dependent things.
 977
 978 COMPONENT_LIST="
 979     bsfs
 980     decoders
 981     demuxers
 982     encoders
 983     filters
 984     hwaccels
 985     indevs
 986     muxers
 987     outdevs
 988     parsers
 989     protocols
 990 "
 991
 992 PROGRAM_LIST="
 993     ffplay
 994     ffprobe
 995     ffserver
 996     ffmpeg
 997 "
 998
 999 CONFIG_LIST="
1000     $COMPONENT_LIST
1001     $PROGRAM_LIST
1002     avplay
1003     avprobe
1004     avserver
1005     aandct
1006     ac3dsp
1007     avcodec
1008     avdevice
1009     avfilter
1010     avformat
1011     avisynth
1012     bzlib
1013     crystalhd
1014     dct
1015     doc
1016     dwt
1017     dxva2
1018     fastdiv
1019     fft
1020     frei0r
1021     gnutls
1022     golomb
1023     gpl
1024     gray
1025     h264chroma
1026     h264dsp
1027     h264pred
1028     hardcoded_tables
1029     huffman
1030     libaacplus
1031     libass
1032     libcdio
1033     libcelt
1034     libdc1394
1035     libdirac
1036     libfaac
1037     libfreetype
1038     libgsm
1039     libmodplug
1040     libmp3lame
1041     libnut
1042     libopencore_amrnb
1043     libopencore_amrwb
1044     libopencv
1045     libopenjpeg
1046     libpulse
1047     librtmp
1048     libschroedinger
1049     libspeex
1050     libstagefright_h264
1051     libtheora
1052     libutvideo
1053     libv4l2
1054     libvo_aacenc
1055     libvo_amrwbenc
1056     libvorbis
1057     libvpx
1058     libx264
1059     libxavs
1060     libxvid
1061     lpc
1062     lsp
1063     mdct
1064     memalign_hack
1065     mlib
1066     mpegaudiodsp
1067     network
1068     nonfree
1069     openal
1070     openssl
1071     pic
1072     postproc
1073     rdft
1074     rtpdec
1075     runtime_cpudetect
1076     safe_bitstream_reader
1077     shared
1078     sinewin
1079     small
1080     sram
1081     static
1082     swresample
1083     swscale
1084     swscale_alpha
1085     thumb
1086     vaapi
1087     vda
1088     vdpau
1089     version3
1090     xmm_clobber_test
1091     x11grab
1092     zlib
1093 "
1094
1095 THREADS_LIST='
1096     pthreads
1097     w32threads
1098     os2threads
1099 '
1100
1101 ARCH_LIST='
1102     alpha
1103     arm
1104     avr32
1105     avr32_ap
1106     avr32_uc
1107     bfin
1108     ia64
1109     m68k
1110     mips
1111     mips64
1112     parisc
1113     ppc
1114     ppc64
1115     s390
1116     sh4
1117     sparc
1118     sparc64
1119     tomi
1120     x86
1121     x86_32
1122     x86_64
1123 '
1124
1125 ARCH_EXT_LIST='
1126     altivec
1127     amd3dnow
1128     amd3dnowext
1129     armv5te
1130     armv6
1131     armv6t2
1132     armvfp
1133     avx
1134     iwmmxt
1135     mmi
1136     mmx
1137     mmx2
1138     neon
1139     ppc4xx
1140     sse
1141     ssse3
1142     vfpv3
1143     vis
1144 '
1145
1146 HAVE_LIST_PUB='
1147     bigendian
1148     fast_unaligned
1149 '
1150
1151 HAVE_LIST="
1152     $ARCH_EXT_LIST
1153     $HAVE_LIST_PUB
1154     $THREADS_LIST
1155     aligned_stack
1156     alsa_asoundlib_h
1157     altivec_h
1158     arpa_inet_h
1159     asm_mod_y
1160     asm_types_h
1161     attribute_may_alias
1162     attribute_packed
1163     cbrtf
1164     closesocket
1165     cmov
1166     dcbzl
1167     dev_bktr_ioctl_bt848_h
1168     dev_bktr_ioctl_meteor_h
1169     dev_ic_bt8xx_h
1170     dev_video_bktr_ioctl_bt848_h
1171     dev_video_meteor_ioctl_meteor_h
1172     dlfcn_h
1173     dlopen
1174     dos_paths
1175     ebp_available
1176     ebx_available
1177     exp2
1178     exp2f
1179     fast_64bit
1180     fast_clz
1181     fast_cmov
1182     fcntl
1183     fork
1184     getaddrinfo
1185     gethrtime
1186     GetProcessAffinityMask
1187     GetProcessMemoryInfo
1188     GetProcessTimes
1189     getrusage
1190     gnu_as
1191     ibm_asm
1192     inet_aton
1193     inline_asm
1194     isatty
1195     kbhit
1196     ldbrx
1197     libdc1394_1
1198     libdc1394_2
1199     llrint
1200     llrintf
1201     local_aligned_16
1202     local_aligned_8
1203     localtime_r
1204     log2
1205     log2f
1206     loongson
1207     lrint
1208     lrintf
1209     lzo1x_999_compress
1210     machine_ioctl_bt848_h
1211     machine_ioctl_meteor_h
1212     makeinfo
1213     malloc_h
1214     MapViewOfFile
1215     memalign
1216     mkstemp
1217     mmap
1218     PeekNamedPipe
1219     poll_h
1220     posix_memalign
1221     round
1222     roundf
1223     sched_getaffinity
1224     sdl
1225     sdl_video_size
1226     setmode
1227     setrlimit
1228     sndio_h
1229     socklen_t
1230     soundcard_h
1231     strerror_r
1232     strptime
1233     struct_addrinfo
1234     struct_ipv6_mreq
1235     struct_rusage_ru_maxrss
1236     struct_sockaddr_in6
1237     struct_sockaddr_sa_len
1238     struct_sockaddr_storage
1239     struct_v4l2_frmivalenum_discrete
1240     symver
1241     symver_asm_label
1242     symver_gnu_asm
1243     sysconf
1244     sysctl
1245     sys_mman_h
1246     sys_param_h
1247     sys_resource_h
1248     sys_select_h
1249     sys_soundcard_h
1250     sys_videoio_h
1251     termios_h
1252     threads
1253     trunc
1254     truncf
1255     vfp_args
1256     VirtualAlloc
1257     winsock2_h
1258     xform_asm
1259     xmm_clobbers
1260     yasm
1261 "
1262
1263 # options emitted with CONFIG_ prefix but not available on command line
1264 CONFIG_EXTRA="
1265     avutil
1266     gplv3
1267     lgplv3
1268 "
1269
1270 CMDLINE_SELECT="
1271     $ARCH_EXT_LIST
1272     $CONFIG_LIST
1273     $THREADS_LIST
1274     asm
1275     coverage
1276     cross_compile
1277     debug
1278     extra_warnings
1279     logging
1280     optimizations
1281     stripping
1282     symver
1283     yasm
1284 "
1285
1286 PATHS_LIST='
1287     bindir
1288     datadir
1289     incdir
1290     libdir
1291     mandir
1292     prefix
1293     shlibdir
1294 '
1295
1296 CMDLINE_SET="
1297     $PATHS_LIST
1298     ar
1299     arch
1300     as
1301     build_suffix
1302     cc
1303     cpu
1304     cross_prefix
1305     cxx
1306     dep_cc
1307     extra_version
1308     host_cc
1309     host_cflags
1310     host_ldflags
1311     host_libs
1312     host_os
1313     install
1314     ld
1315     logfile
1316     malloc_prefix
1317     nm
1318     optflags
1319     pkg_config
1320     postproc_version
1321     progs_suffix
1322     samples
1323     strip
1324     sysinclude
1325     sysroot
1326     target_exec
1327     target_os
1328     target_path
1329     valgrind
1330     yasmexe
1331 "
1332
1333 CMDLINE_APPEND="
1334     extra_cflags
1335     extra_cxxflags
1336 "
1337
1338 # code dependency declarations
1339
1340 # architecture extensions
1341
1342 armv5te_deps="arm"
1343 armv6_deps="arm"
1344 armv6t2_deps="arm"
1345 armvfp_deps="arm"
1346 iwmmxt_deps="arm"
1347 neon_deps="arm"
1348 vfpv3_deps="armvfp"
1349
1350 mmi_deps="mips"
1351
1352 altivec_deps="ppc"
1353 ppc4xx_deps="ppc"
1354
1355 vis_deps="sparc"
1356
1357 x86_64_suggest="cmov fast_cmov"
1358 amd3dnow_deps="mmx"
1359 amd3dnowext_deps="amd3dnow"
1360 mmx_deps="x86"
1361 mmx2_deps="mmx"
1362 sse_deps="mmx"
1363 ssse3_deps="sse"
1364 avx_deps="ssse3"
1365
1366 aligned_stack_if_any="ppc x86"
1367 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1368 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1369 fast_unaligned_if_any="armv6 ppc x86"
1370
1371 inline_asm_deps="!tms470"
1372 need_memalign="altivec neon sse"
1373
1374 symver_if_any="symver_asm_label symver_gnu_asm"
1375
1376 # subsystems
1377 dct_select="rdft"
1378 mdct_select="fft"
1379 rdft_select="fft"
1380 mpegaudiodsp_select="dct"
1381
1382 # decoders / encoders / hardware accelerators
1383 aac_decoder_select="mdct sinewin"
1384 aac_encoder_select="mdct sinewin"
1385 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1386 ac3_decoder_select="mdct ac3dsp ac3_parser"
1387 ac3_encoder_select="mdct ac3dsp"
1388 ac3_fixed_encoder_select="mdct ac3dsp"
1389 alac_encoder_select="lpc"
1390 amrnb_decoder_select="lsp"
1391 amrwb_decoder_select="lsp"
1392 atrac1_decoder_select="mdct sinewin"
1393 atrac3_decoder_select="mdct"
1394 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1395 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1396 cavs_decoder_select="golomb"
1397 cook_decoder_select="mdct sinewin"
1398 cscd_decoder_suggest="zlib"
1399 dca_decoder_select="mdct"
1400 dnxhd_encoder_select="aandct"
1401 dxa_decoder_select="zlib"
1402 eac3_decoder_select="ac3_decoder"
1403 eac3_encoder_select="mdct ac3dsp"
1404 eamad_decoder_select="aandct"
1405 eatgq_decoder_select="aandct"
1406 eatqi_decoder_select="aandct"
1407 ffv1_decoder_select="golomb"
1408 flac_decoder_select="golomb"
1409 flac_encoder_select="golomb lpc"
1410 flashsv_decoder_select="zlib"
1411 flashsv_encoder_select="zlib"
1412 flashsv2_encoder_select="zlib"
1413 flashsv2_decoder_select="zlib"
1414 flv_decoder_select="h263_decoder"
1415 flv_encoder_select="h263_encoder"
1416 fraps_decoder_select="huffman"
1417 h261_encoder_select="aandct"
1418 h263_decoder_select="h263_parser"
1419 h263_encoder_select="aandct"
1420 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1421 h263i_decoder_select="h263_decoder"
1422 h263p_encoder_select="h263_encoder"
1423 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1424 h264_decoder_select="golomb h264chroma h264dsp h264pred"
1425 h264_dxva2_hwaccel_deps="dxva2api_h"
1426 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1427 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1428 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1429 h264_vda_hwaccel_select="vda h264_decoder"
1430 h264_vdpau_decoder_select="vdpau h264_decoder"
1431 imc_decoder_select="fft mdct sinewin"
1432 jpegls_decoder_select="golomb"
1433 jpegls_encoder_select="golomb"
1434 ljpeg_encoder_select="aandct"
1435 loco_decoder_select="golomb"
1436 mjpeg_encoder_select="aandct"
1437 mlp_decoder_select="mlp_parser"
1438 mp1_decoder_select="mpegaudiodsp"
1439 mp1float_decoder_select="mpegaudiodsp"
1440 mp2_decoder_select="mpegaudiodsp"
1441 mp2float_decoder_select="mpegaudiodsp"
1442 mp3_decoder_select="mpegaudiodsp"
1443 mp3adu_decoder_select="mpegaudiodsp"
1444 mp3adufloat_decoder_select="mpegaudiodsp"
1445 mp3float_decoder_select="mpegaudiodsp"
1446 mp3on4_decoder_select="mpegaudiodsp"
1447 mp3on4float_decoder_select="mpegaudiodsp"
1448 mpc7_decoder_select="mpegaudiodsp"
1449 mpc8_decoder_select="mpegaudiodsp"
1450 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1451 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1452 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1453 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1454 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1455 mpeg1video_encoder_select="aandct"
1456 mpeg2_crystalhd_decoder_select="crystalhd"
1457 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1458 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1459 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1460 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1461 mpeg2video_encoder_select="aandct"
1462 mpeg4_crystalhd_decoder_select="crystalhd"
1463 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1464 mpeg4_encoder_select="h263_encoder"
1465 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1466 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1467 msmpeg4_crystalhd_decoder_select="crystalhd"
1468 msmpeg4v1_decoder_select="h263_decoder"
1469 msmpeg4v1_encoder_select="h263_encoder"
1470 msmpeg4v2_decoder_select="h263_decoder"
1471 msmpeg4v2_encoder_select="h263_encoder"
1472 msmpeg4v3_decoder_select="h263_decoder"
1473 msmpeg4v3_encoder_select="h263_encoder"
1474 nellymoser_decoder_select="mdct sinewin"
1475 nellymoser_encoder_select="mdct sinewin"
1476 png_decoder_select="zlib"
1477 png_encoder_select="zlib"
1478 qcelp_decoder_select="lsp"
1479 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1480 ra_144_encoder_select="lpc"
1481 rv10_decoder_select="h263_decoder"
1482 rv10_encoder_select="h263_encoder"
1483 rv20_decoder_select="h263_decoder"
1484 rv20_encoder_select="h263_encoder"
1485 rv30_decoder_select="golomb h264chroma h264pred"
1486 rv40_decoder_select="golomb h264chroma h264pred"
1487 shorten_decoder_select="golomb"
1488 sipr_decoder_select="lsp"
1489 snow_decoder_select="dwt"
1490 snow_encoder_select="aandct dwt"
1491 sonic_decoder_select="golomb"
1492 sonic_encoder_select="golomb"
1493 sonic_ls_encoder_select="golomb"
1494 svq1_encoder_select="aandct"
1495 svq3_decoder_select="golomb h264chroma h264dsp h264pred"
1496 svq3_decoder_suggest="zlib"
1497 theora_decoder_select="vp3_decoder"
1498 tiff_decoder_suggest="zlib"
1499 tiff_encoder_suggest="zlib"
1500 truehd_decoder_select="mlp_decoder"
1501 tscc_decoder_select="zlib"
1502 twinvq_decoder_select="mdct lsp sinewin"
1503 vc1_crystalhd_decoder_select="crystalhd"
1504 vc1_decoder_select="h263_decoder h264chroma"
1505 vc1_dxva2_hwaccel_deps="dxva2api_h"
1506 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1507 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1508 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1509 vc1image_decoder_select="vc1_decoder"
1510 vorbis_decoder_select="mdct"
1511 vorbis_encoder_select="mdct"
1512 vp6_decoder_select="huffman"
1513 vp6a_decoder_select="vp6_decoder"
1514 vp6f_decoder_select="vp6_decoder"
1515 vp8_decoder_select="h264pred"
1516 wmapro_decoder_select="mdct sinewin"
1517 wmav1_decoder_select="mdct sinewin"
1518 wmav1_encoder_select="mdct sinewin"
1519 wmav2_decoder_select="mdct sinewin"
1520 wmav2_encoder_select="mdct sinewin"
1521 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1522 wmv1_decoder_select="h263_decoder"
1523 wmv1_encoder_select="h263_encoder"
1524 wmv2_decoder_select="h263_decoder"
1525 wmv2_encoder_select="h263_encoder"
1526 wmv3_decoder_select="vc1_decoder"
1527 wmv3_crystalhd_decoder_select="crystalhd"
1528 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1529 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1530 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1531 wmv3image_decoder_select="wmv3_decoder"
1532 zlib_decoder_select="zlib"
1533 zlib_encoder_select="zlib"
1534 zmbv_decoder_select="zlib"
1535 zmbv_encoder_select="zlib"
1536
1537 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1538 vaapi_deps="va_va_h"
1539 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1540 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1541
1542 # parsers
1543 h264_parser_select="golomb h264chroma h264dsp h264pred"
1544
1545 # external libraries
1546 libaacplus_encoder_deps="libaacplus"
1547 libcelt_decoder_deps="libcelt"
1548 libdirac_decoder_deps="libdirac !libschroedinger"
1549 libdirac_encoder_deps="libdirac"
1550 libfaac_encoder_deps="libfaac"
1551 libgsm_decoder_deps="libgsm"
1552 libgsm_encoder_deps="libgsm"
1553 libgsm_ms_decoder_deps="libgsm"
1554 libgsm_ms_encoder_deps="libgsm"
1555 libmodplug_demuxer_deps="libmodplug"
1556 libmp3lame_encoder_deps="libmp3lame"
1557 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1558 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1559 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1560 libopenjpeg_decoder_deps="libopenjpeg"
1561 libopenjpeg_encoder_deps="libopenjpeg"
1562 libschroedinger_decoder_deps="libschroedinger"
1563 libschroedinger_encoder_deps="libschroedinger"
1564 libspeex_decoder_deps="libspeex"
1565 libspeex_encoder_deps="libspeex"
1566 libstagefright_h264_decoder_deps="libstagefright_h264"
1567 libtheora_encoder_deps="libtheora"
1568 libvo_aacenc_encoder_deps="libvo_aacenc"
1569 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1570 libvorbis_encoder_deps="libvorbis"
1571 libvpx_decoder_deps="libvpx"
1572 libvpx_encoder_deps="libvpx"
1573 libx264_encoder_deps="libx264"
1574 libx264rgb_encoder_deps="libx264"
1575 libxavs_encoder_deps="libxavs"
1576 libxvid_encoder_deps="libxvid"
1577 libutvideo_decoder_deps="libutvideo gpl"
1578
1579 # demuxers / muxers
1580 ac3_demuxer_select="ac3_parser"
1581 asf_stream_muxer_select="asf_muxer"
1582 avisynth_demuxer_deps="avisynth"
1583 dirac_demuxer_select="dirac_parser"
1584 eac3_demuxer_select="ac3_parser"
1585 flac_demuxer_select="flac_parser"
1586 ipod_muxer_select="mov_muxer"
1587 libnut_demuxer_deps="libnut"
1588 libnut_muxer_deps="libnut"
1589 matroska_audio_muxer_select="matroska_muxer"
1590 matroska_demuxer_suggest="zlib bzlib"
1591 mov_demuxer_suggest="zlib"
1592 mp3_demuxer_select="mpegaudio_parser"
1593 mp4_muxer_select="mov_muxer"
1594 mpegtsraw_demuxer_select="mpegts_demuxer"
1595 mxf_d10_muxer_select="mxf_muxer"
1596 ogg_demuxer_select="golomb"
1597 psp_muxer_select="mov_muxer"
1598 rtp_demuxer_select="sdp_demuxer"
1599 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1600 rtsp_demuxer_select="http_protocol rtpdec"
1601 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1602 sap_demuxer_select="sdp_demuxer"
1603 sap_muxer_select="rtp_muxer rtp_protocol"
1604 sdp_demuxer_select="rtpdec"
1605 spdif_muxer_select="aac_parser"
1606 tg2_muxer_select="mov_muxer"
1607 tgp_muxer_select="mov_muxer"
1608 w64_demuxer_deps="wav_demuxer"
1609
1610 # indevs / outdevs
1611 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1612 alsa_outdev_deps="alsa_asoundlib_h"
1613 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1614 dshow_indev_deps="IBaseFilter"
1615 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1616 dv1394_indev_deps="dv1394 dv_demuxer"
1617 fbdev_indev_deps="linux_fb_h"
1618 jack_indev_deps="jack_jack_h sem_timedwait"
1619 lavfi_indev_deps="avfilter"
1620 libcdio_indev_deps="libcdio"
1621 libdc1394_indev_deps="libdc1394"
1622 libv4l2_indev_deps="libv4l2"
1623 openal_indev_deps="openal"
1624 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1625 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1626 pulse_indev_deps="libpulse"
1627 sdl_outdev_deps="sdl"
1628 sndio_indev_deps="sndio_h"
1629 sndio_outdev_deps="sndio_h"
1630 v4l_indev_deps="linux_videodev_h"
1631 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1632 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1633 vfwcap_indev_extralibs="-lavicap32"
1634 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1635 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1636
1637 # protocols
1638 gopher_protocol_deps="network"
1639 httpproxy_protocol_deps="network"
1640 httpproxy_protocol_select="tcp_protocol"
1641 http_protocol_deps="network"
1642 http_protocol_select="tcp_protocol"
1643 https_protocol_select="tls_protocol"
1644 mmsh_protocol_select="http_protocol"
1645 mmst_protocol_deps="network"
1646 rtmp_protocol_select="tcp_protocol"
1647 rtp_protocol_select="udp_protocol"
1648 tcp_protocol_deps="network"
1649 tls_protocol_deps_any="openssl gnutls"
1650 tls_protocol_select="tcp_protocol"
1651 udp_protocol_deps="network"
1652
1653 # filters
1654 aconvert_filter_deps="swresample"
1655 amovie_filter_deps="avcodec avformat"
1656 aresample_filter_deps="swresample"
1657 ass_filter_deps="libass"
1658 blackframe_filter_deps="gpl"
1659 boxblur_filter_deps="gpl"
1660 cropdetect_filter_deps="gpl"
1661 delogo_filter_deps="gpl"
1662 drawtext_filter_deps="libfreetype"
1663 frei0r_filter_deps="frei0r dlopen"
1664 frei0r_src_filter_deps="frei0r dlopen"
1665 hqdn3d_filter_deps="gpl"
1666 movie_filter_deps="avcodec avformat"
1667 mp_filter_deps="gpl avcodec"
1668 mptestsrc_filter_deps="gpl"
1669 negate_filter_deps="lut_filter"
1670 ocv_filter_deps="libopencv"
1671 pan_filter_deps="swresample"
1672 scale_filter_deps="swscale"
1673 tinterlace_filter_deps="gpl"
1674 yadif_filter_deps="gpl"
1675
1676 # libraries
1677 avdevice_deps="avcodec avformat"
1678 avformat_deps="avcodec"
1679 postproc_deps="gpl"
1680
1681 # programs
1682 ffplay_deps="avcodec avformat swscale sdl"
1683 ffplay_select="buffersink_filter rdft"
1684 ffprobe_deps="avcodec avformat"
1685 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1686 ffserver_extralibs='$ldl'
1687 ffmpeg_deps="avcodec avformat swscale swresample"
1688 ffmpeg_select="buffersink_filter"
1689
1690 doc_deps="texi2html"
1691
1692 # tests
1693
1694 test_deps(){
1695     suf1=$1
1696     suf2=$2
1697     shift 2
1698     for v; do
1699         dep=${v%=*}
1700         tests=${v#*=}
1701         for name in ${tests}; do
1702             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1703         done
1704     done
1705 }
1706
1707 mxf_d10_test_deps="avfilter"
1708 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1709
1710 test_deps _encoder _decoder                                             \
1711     adpcm_ima_qt                                                        \
1712     adpcm_ima_wav                                                       \
1713     adpcm_ms                                                            \
1714     adpcm_swf                                                           \
1715     adpcm_yamaha=adpcm_yam                                              \
1716     alac                                                                \
1717     asv1                                                                \
1718     asv2                                                                \
1719     bmp                                                                 \
1720     dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1721     dvvideo="dv dv_411 dv50"                                            \
1722     ffv1                                                                \
1723     flac                                                                \
1724     flashsv                                                             \
1725     flv                                                                 \
1726     adpcm_g726=g726                                                     \
1727     gif                                                                 \
1728     h261                                                                \
1729     h263="h263 h263p"                                                   \
1730     huffyuv                                                             \
1731     jpegls                                                              \
1732     mjpeg="jpg mjpeg ljpeg"                                             \
1733     mp2                                                                 \
1734     mpeg1video="mpeg mpeg1b"                                            \
1735     mpeg2video="mpeg2 mpeg2_422 mpeg2_idct_int mpeg2_ilace mpeg2_ivlc_qprd" \
1736     mpeg2video="mpeg2thread mpeg2thread_ilace"                          \
1737     mpeg4="mpeg4 mpeg4_adap mpeg4_qpel mpeg4_qprd mpeg4adv mpeg4nr"     \
1738     mpeg4="mpeg4thread error rc"                                        \
1739     msmpeg4v3=msmpeg4                                                   \
1740     msmpeg4v2                                                           \
1741     pbm=pbmpipe                                                         \
1742     pcx                                                                 \
1743     pgm="pgm pgmpipe"                                                   \
1744     png                                                                 \
1745     ppm="ppm ppmpipe"                                                   \
1746     rawvideo="rgb yuv"                                                  \
1747     roq                                                                 \
1748     rv10                                                                \
1749     rv20                                                                \
1750     sgi                                                                 \
1751     snow="snow snowll"                                                  \
1752     svq1                                                                \
1753     targa=tga                                                           \
1754     tiff                                                                \
1755     wmav1                                                               \
1756     wmav2                                                               \
1757     wmv1                                                                \
1758     wmv2                                                                \
1759
1760 test_deps _muxer _demuxer                                               \
1761     aiff                                                                \
1762     pcm_alaw=alaw                                                       \
1763     asf                                                                 \
1764     au                                                                  \
1765     avi                                                                 \
1766     dv=dv_fmt                                                           \
1767     ffm                                                                 \
1768     flv=flv_fmt                                                         \
1769     gxf                                                                 \
1770     matroska=mkv                                                        \
1771     mmf                                                                 \
1772     mov                                                                 \
1773     pcm_mulaw=mulaw                                                     \
1774     mxf="mxf mxf_d10"                                                   \
1775     nut                                                                 \
1776     ogg                                                                 \
1777     rawvideo=pixfmt                                                     \
1778     rm                                                                  \
1779     swf                                                                 \
1780     mpegts=ts                                                           \
1781     voc                                                                 \
1782     wav                                                                 \
1783     yuv4mpegpipe=yuv4mpeg                                               \
1784
1785 ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder"
1786 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1787
1788 # default parameters
1789
1790 logfile="config.log"
1791
1792 # installation paths
1793 prefix_default="/usr/local"
1794 bindir_default='${prefix}/bin'
1795 datadir_default='${prefix}/share/ffmpeg'
1796 incdir_default='${prefix}/include'
1797 libdir_default='${prefix}/lib'
1798 mandir_default='${prefix}/share/man'
1799 shlibdir_default="$libdir_default"
1800 postproc_version_default="current"
1801
1802 # toolchain
1803 ar_default="ar"
1804 cc_default="gcc"
1805 cxx_default="g++"
1806 cc_version=\"unknown\"
1807 host_cc_default="gcc"
1808 install="install"
1809 ln_s="ln -sf"
1810 nm_default="nm"
1811 objformat="elf"
1812 pkg_config_default=pkg-config
1813 ranlib="ranlib"
1814 strip_default="strip"
1815 yasmexe_default="yasm"
1816
1817 nm_opts='-g'
1818 nogas=":"
1819
1820 # machine
1821 arch_default=$(uname -m)
1822 cpu="generic"
1823
1824 # OS
1825 target_os_default=$(tolower $(uname -s))
1826 host_os=$target_os_default
1827
1828 # alternative libpostproc version
1829 ALT_PP_VER_MAJOR=51
1830 ALT_PP_VER_MINOR=2
1831 ALT_PP_VER_MICRO=101
1832 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1833
1834 # configurable options
1835 enable $PROGRAM_LIST
1836
1837 enable avcodec
1838 enable avdevice
1839 enable avfilter
1840 enable avformat
1841 enable avutil
1842 enable postproc
1843 enable stripping
1844 enable swresample
1845 enable swscale
1846
1847 enable asm
1848 enable debug
1849 enable doc
1850 enable fastdiv
1851 enable network
1852 enable optimizations
1853 enable safe_bitstream_reader
1854 enable static
1855 enable swscale_alpha
1856
1857 # build settings
1858 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1859 FFSERVERLDFLAGS=-Wl,-E
1860 LIBPREF="lib"
1861 LIBSUF=".a"
1862 FULLNAME='$(NAME)$(BUILDSUF)'
1863 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1864 SLIBPREF="lib"
1865 SLIBSUF=".so"
1866 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1867 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1868 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1869 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1870 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1871 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1872
1873 AS_O='-o $@'
1874 CC_O='-o $@'
1875 CXX_O='-o $@'
1876
1877 host_cflags='-D_ISOC99_SOURCE -O3 -g'
1878 host_libs='-lm'
1879
1880 target_path='$(CURDIR)'
1881
1882 # since the object filename is not given with the -MM flag, the compiler
1883 # is only able to print the basename, and we must add the path ourselves
1884 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1885 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1886
1887 # find source path
1888 if test -f configure; then
1889     source_path=.
1890 else
1891     source_path=$(cd $(dirname "$0"); pwd)
1892     echo "$source_path" | grep -q '[[:blank:]]' &&
1893         die "Out of tree builds are impossible with whitespace in source path."
1894     test -e "$source_path/config.h" &&
1895         die "Out of tree builds are impossible with config.h in source dir."
1896 fi
1897
1898 for v in "$@"; do
1899     r=${v#*=}
1900     l=${v%"$r"}
1901     r=$(sh_quote "$r")
1902     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1903 done
1904
1905 find_things(){
1906     thing=$1
1907     pattern=$2
1908     file=$source_path/$3
1909     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1910 }
1911
1912 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1913 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1914 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1915 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1916 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1917 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1918 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1919 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1920 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1921 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1922 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1923
1924 ALL_COMPONENTS="
1925     $BSF_LIST
1926     $DECODER_LIST
1927     $DEMUXER_LIST
1928     $ENCODER_LIST
1929     $FILTER_LIST
1930     $HWACCEL_LIST
1931     $INDEV_LIST
1932     $MUXER_LIST
1933     $OUTDEV_LIST
1934     $PARSER_LIST
1935     $PROTOCOL_LIST
1936 "
1937
1938 find_tests(){
1939     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1940 }
1941
1942 ACODEC_TESTS=$(find_tests acodec)
1943 VCODEC_TESTS=$(find_tests vsynth1)
1944 LAVF_TESTS=$(find_tests lavf)
1945 LAVFI_TESTS=$(find_tests lavfi)
1946 SEEK_TESTS=$(find_tests seek seek_)
1947
1948 ALL_TESTS="$ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1949
1950 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1951
1952 for n in $COMPONENT_LIST; do
1953     v=$(toupper ${n%s})_LIST
1954     eval enable \$$v
1955     eval ${n}_if_any="\$$v"
1956 done
1957
1958 enable $ARCH_EXT_LIST $ALL_TESTS
1959
1960 die_unknown(){
1961     echo "Unknown option \"$1\"."
1962     echo "See $0 --help for available options."
1963     exit 1
1964 }
1965
1966 show_list() {
1967     suffix=_$1
1968     shift
1969     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1970     exit 0
1971 }
1972
1973 for opt do
1974     optval="${opt#*=}"
1975     case "$opt" in
1976     --extra-ldflags=*) add_ldflags $optval
1977     ;;
1978     --extra-libs=*) add_extralibs $optval
1979     ;;
1980     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1981     ;;
1982     --enable-debug=*) debuglevel="$optval"
1983     ;;
1984     --disable-everything)
1985     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1986     ;;
1987     --enable-*=*|--disable-*=*)
1988     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1989     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1990     eval list=\$$(toupper $thing)_LIST
1991     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1992     $action $(filter "$name" $list)
1993     ;;
1994     --enable-?*|--disable-?*)
1995     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1996     if is_in $option $COMPONENT_LIST; then
1997         test $action = disable && action=unset
1998         eval $action \$$(toupper ${option%s})_LIST
1999     elif is_in $option $CMDLINE_SELECT; then
2000         $action $option
2001     else
2002         die_unknown $opt
2003     fi
2004     ;;
2005     --list-*)
2006         NAME="${opt#--list-}"
2007         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2008         NAME=${NAME%s}
2009         eval show_list $NAME \$$(toupper $NAME)_LIST
2010     ;;
2011     --help|-h) show_help
2012     ;;
2013     *)
2014     optname="${opt%%=*}"
2015     optname="${optname#--}"
2016     optname=$(echo "$optname" | sed 's/-/_/g')
2017     if is_in $optname $CMDLINE_SET; then
2018         eval $optname='$optval'
2019     elif is_in $optname $CMDLINE_APPEND; then
2020         append $optname "$optval"
2021     else
2022          die_unknown $opt
2023     fi
2024     ;;
2025     esac
2026 done
2027
2028 disabled logging && logfile=/dev/null
2029
2030 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2031 set >> $logfile
2032
2033 test -n "$cross_prefix" && enable cross_compile
2034
2035 if enabled cross_compile; then
2036     test -n "$arch" && test -n "$target_os" ||
2037         die "Must specify target arch and OS when cross-compiling"
2038 fi
2039
2040 set_default arch target_os postproc_version
2041
2042 # Check if we should build alternative libpostproc version instead of current
2043 if   test "$postproc_version" = $ALT_PP_VER; then
2044   LIBPOSTPROC_VERSION=$ALT_PP_VER
2045   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2046   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2047   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2048 elif test "$postproc_version" != current; then
2049   die "Invalid argument to --postproc-version. See --help output."
2050 fi
2051
2052 ar_default="${cross_prefix}${ar_default}"
2053 cc_default="${cross_prefix}${cc_default}"
2054 cxx_default="${cross_prefix}${cxx_default}"
2055 nm_default="${cross_prefix}${nm_default}"
2056 pkg_config_default="${cross_prefix}${pkg_config_default}"
2057 ranlib="${cross_prefix}${ranlib}"
2058 strip_default="${cross_prefix}${strip_default}"
2059
2060 sysinclude_default="${sysroot}/usr/include"
2061
2062 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2063 enabled cross_compile || host_cc_default=$cc
2064 set_default host_cc
2065
2066 if ! $pkg_config --version >/dev/null 2>&1; then
2067     warn "$pkg_config not found, library detection may fail."
2068     pkg_config=false
2069 fi
2070
2071 exesuf() {
2072     case $1 in
2073         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2074     esac
2075 }
2076
2077 EXESUF=$(exesuf $target_os)
2078 HOSTEXESUF=$(exesuf $host_os)
2079
2080 # set temporary file name
2081 : ${TMPDIR:=$TEMPDIR}
2082 : ${TMPDIR:=$TMP}
2083 : ${TMPDIR:=/tmp}
2084
2085 if ! check_cmd mktemp -u XXXXXX; then
2086     # simple replacement for missing mktemp
2087     # NOT SAFE FOR GENERAL USE
2088     mktemp(){
2089         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2090     }
2091 fi
2092
2093 tmpfile(){
2094     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2095         (set -C; exec > $tmp) 2>/dev/null ||
2096         die "Unable to create temporary file in $TMPDIR."
2097     append TMPFILES $tmp
2098     eval $1=$tmp
2099 }
2100
2101 trap 'rm -f -- $TMPFILES' EXIT
2102
2103 tmpfile TMPASM .asm
2104 tmpfile TMPC   .c
2105 tmpfile TMPCPP .cpp
2106 tmpfile TMPE   $EXESUF
2107 tmpfile TMPH   .h
2108 tmpfile TMPO   .o
2109 tmpfile TMPS   .S
2110 tmpfile TMPSH  .sh
2111 tmpfile TMPV   .ver
2112
2113 unset -f mktemp
2114
2115 chmod +x $TMPE
2116
2117 # make sure we can execute files in $TMPDIR
2118 cat > $TMPSH 2>> $logfile <<EOF
2119 #! /bin/sh
2120 EOF
2121 chmod +x $TMPSH >> $logfile 2>&1
2122 if ! $TMPSH >> $logfile 2>&1; then
2123     cat <<EOF
2124 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2125 variable to another directory and make sure that it is not mounted noexec.
2126 EOF
2127     die "Sanity test failed."
2128 fi
2129
2130 filter_asflags=echo
2131 filter_cflags=echo
2132 filter_cppflags=echo
2133
2134 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2135     cc_type=llvm_gcc
2136     cc_version=__VERSION__
2137     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2138     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2139     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2140     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2141     speed_cflags='-O3'
2142     size_cflags='-Os'
2143 elif $cc -v 2>&1 | grep -qi ^gcc; then
2144     cc_type=gcc
2145     cc_version=__VERSION__
2146     gcc_version=$($cc --version | head -n1)
2147     gcc_basever=$($cc -dumpversion)
2148     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2149     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2150     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2151     if ! $cc -dumpversion | grep -q '^2\.'; then
2152         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2153         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2154     fi
2155     speed_cflags='-O3'
2156     size_cflags='-Os'
2157 elif $cc --version 2>/dev/null | grep -q Intel; then
2158     cc_type=icc
2159     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2160     cc_ident=$($cc --version | head -n1)
2161     icc_version=$($cc -dumpversion)
2162     CC_DEPFLAGS='-MMD'
2163     AS_DEPFLAGS='-MMD'
2164     speed_cflags='-O3'
2165     size_cflags='-Os'
2166     noopt_cflags='-O1'
2167 elif $cc -v 2>&1 | grep -q xlc; then
2168     cc_type=xlc
2169     cc_version="AV_STRINGIFY(__IBMC__)"
2170     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2171     speed_cflags='-O5'
2172     size_cflags='-O5 -qcompact'
2173 elif $cc -V 2>/dev/null | grep -q Compaq; then
2174     cc_type=ccc
2175     cc_version="AV_STRINGIFY(__DECC_VER)"
2176     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2177     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2178     debuglevel=3
2179     add_ldflags -Wl,-z,now # calls to libots crash without this
2180     speed_cflags='-fast'
2181     size_cflags='-O1'
2182 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2183     test -d "$sysroot" || die "No valid sysroot specified."
2184     cc_type=armcc
2185     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2186     cc_ident=$($cc --vsn | head -n1)
2187     armcc_conf="$PWD/armcc.conf"
2188     $cc --arm_linux_configure                 \
2189         --arm_linux_config_file="$armcc_conf" \
2190         --configure_sysroot="$sysroot"        \
2191         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2192         die "Error creating armcc configuration file."
2193     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2194     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2195     as_default="${cross_prefix}gcc"
2196     CC_DEPFLAGS='-MMD'
2197     AS_DEPFLAGS='-MMD'
2198     speed_cflags='-O3'
2199     size_cflags='-Os'
2200     filter_asflags="filter_out -W${armcc_opt}*"
2201 elif $cc -version 2>/dev/null | grep -q TMS470; then
2202     cc_type=tms470
2203     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2204     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2205     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2206     CC_O='-fr=$(@D)'
2207     as_default="${cross_prefix}gcc"
2208     ld_default="${cross_prefix}gcc"
2209     TMPO=$(basename $TMPC .c).o
2210     append TMPFILES $TMPO
2211     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2212     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2213     AS_DEPFLAGS='-MMD'
2214     speed_cflags='-O3 -mf=5'
2215     size_cflags='-O3 -mf=2'
2216     filter_cflags=tms470_flags
2217     tms470_flags(){
2218         for flag; do
2219             case $flag in
2220                 -march=*|-mcpu=*)
2221                     case "${flag#*=}" in
2222                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2223                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2224                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2225                         armv6*|arm11*)          echo -mv=6   ;;
2226                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2227                                                 echo -mv=5e  ;;
2228                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2229                     esac
2230                     ;;
2231                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2232                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2233                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2234                 -msoft-float)   echo --float_support=vfplib       ;;
2235                 -O[0-3]|-mf=*)  echo $flag                        ;;
2236                 -g)             echo -g -mn                       ;;
2237                 -pds=*)         echo $flag                        ;;
2238             esac
2239         done
2240     }
2241 elif $cc -v 2>&1 | grep -q clang; then
2242     cc_type=clang
2243     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2244         cc_version=__clang_version__ || cc_version=__VERSION__
2245     cc_ident=$($cc --version | head -n1)
2246     CC_DEPFLAGS='-MMD'
2247     AS_DEPFLAGS='-MMD'
2248     speed_cflags='-O3'
2249     size_cflags='-Os'
2250 elif $cc -V 2>&1 | grep -q Sun; then
2251     cc_type=suncc
2252     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2253     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2254     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2255     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2256     add_ldflags -xc99
2257     speed_cflags='-O5'
2258     size_cflags='-O5 -xspace'
2259     filter_cflags=suncc_flags
2260     suncc_flags(){
2261         for flag; do
2262             case $flag in
2263                 -march=*|-mcpu=*)
2264                     case "${flag#*=}" in
2265                         native)                   echo -xtarget=native       ;;
2266                         v9|niagara)               echo -xarch=sparc          ;;
2267                         ultrasparc)               echo -xarch=sparcvis       ;;
2268                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2269                         i586|pentium)             echo -xchip=pentium        ;;
2270                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2271                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2272                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2273                         pentium4*)          echo -xtarget=pentium4           ;;
2274                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2275                         *-sse3)             echo -xarch=sse3                 ;;
2276                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2277                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2278                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2279                         k8|opteron|athlon64|athlon-fx)
2280                                                   echo -xarch=sse2a          ;;
2281                         athlon*)                  echo -xarch=pentium_proa   ;;
2282                     esac
2283                     ;;
2284                 -std=c99)             echo -xc99              ;;
2285                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2286                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2287                 -W*,*)                echo $flag              ;;
2288                 -f*-*|-W*)                                    ;;
2289                 *)                    echo $flag              ;;
2290             esac
2291         done
2292     }
2293 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2294     cc_type=pathscale
2295     cc_version=__PATHSCALE__
2296     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2297     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2298     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2299     speed_cflags='-O2'
2300     size_cflags='-Os'
2301     filter_cflags='filter_out -Wdisabled-optimization'
2302 elif $cc -v 2>&1 | grep -q Open64; then
2303     cc_type=open64
2304     cc_version=__OPEN64__
2305     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2306     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2307     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2308     speed_cflags='-O2'
2309     size_cflags='-Os'
2310     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2311 fi
2312
2313 test -n "$cc_type" && enable $cc_type ||
2314     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2315
2316 : ${as_default:=$cc}
2317 : ${dep_cc_default:=$cc}
2318 : ${ld_default:=$cc}
2319 set_default ar as dep_cc ld
2320
2321 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2322 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2323 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2324
2325 add_cflags $extra_cflags
2326 add_cxxflags $extra_cxxflags
2327 add_asflags $extra_cflags
2328
2329 if test -n "$sysroot"; then
2330     case "$cc_type" in
2331         gcc|llvm_gcc|clang)
2332             add_cppflags --sysroot="$sysroot"
2333             add_ldflags --sysroot="$sysroot"
2334         ;;
2335         tms470)
2336             add_cppflags -I"$sysinclude"
2337             add_ldflags  --sysroot="$sysroot"
2338         ;;
2339     esac
2340 fi
2341
2342 if test "$cpu" = host; then
2343     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2344
2345     case "$cc_type" in
2346         gcc|llvm_gcc)
2347             check_native(){
2348                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2349                 sed -n "/cc1.*$1=/{
2350                             s/.*$1=\\([^ ]*\\).*/\\1/
2351                             p
2352                             q
2353                         }" $TMPE
2354             }
2355             cpu=$(check_native -march || check_native -mcpu)
2356         ;;
2357     esac
2358
2359     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2360 fi
2361
2362 # Deal with common $arch aliases
2363 case "$arch" in
2364     arm*|iPad*)
2365         arch="arm"
2366     ;;
2367     mips|mipsel|IP*)
2368         arch="mips"
2369     ;;
2370     mips64*)
2371         arch="mips"
2372         subarch="mips64"
2373     ;;
2374     parisc|hppa)
2375         arch="parisc"
2376     ;;
2377     parisc64|hppa64)
2378         arch="parisc"
2379         subarch="parisc64"
2380     ;;
2381     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2382         arch="ppc"
2383     ;;
2384     s390|s390x)
2385         arch="s390"
2386     ;;
2387     sh4|sh)
2388         arch="sh4"
2389     ;;
2390     sun4u|sparc64)
2391         arch="sparc"
2392         subarch="sparc64"
2393     ;;
2394     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2395         arch="x86"
2396     ;;
2397 esac
2398
2399 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2400 enable $arch
2401
2402 # Add processor-specific flags
2403 if test "$cpu" = generic; then
2404     : do nothing
2405 elif enabled ppc; then
2406
2407     case $(tolower $cpu) in
2408         601|ppc601|powerpc601)
2409             cpuflags="-mcpu=601"
2410             disable altivec
2411         ;;
2412         603*|ppc603*|powerpc603*)
2413             cpuflags="-mcpu=603"
2414             disable altivec
2415         ;;
2416         604*|ppc604*|powerpc604*)
2417             cpuflags="-mcpu=604"
2418             disable altivec
2419         ;;
2420         g3|75*|ppc75*|powerpc75*)
2421             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2422             disable altivec
2423         ;;
2424         g4|745*|ppc745*|powerpc745*)
2425             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2426         ;;
2427         74*|ppc74*|powerpc74*)
2428             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2429         ;;
2430         g5|970|ppc970|powerpc970|power4*)
2431             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2432         ;;
2433         cell)
2434             cpuflags="-mcpu=cell"
2435             enable ldbrx
2436         ;;
2437         e500v2)
2438             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2439             disable altivec
2440         ;;
2441         e500)
2442             cpuflags="-mcpu=8540 -mhard-float"
2443             disable altivec
2444         ;;
2445     esac
2446
2447 elif enabled x86; then
2448
2449     case $cpu in
2450         i[345]86|pentium)
2451             cpuflags="-march=$cpu"
2452             disable mmx
2453         ;;
2454         # targets that do NOT support conditional mov (cmov)
2455         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2456             cpuflags="-march=$cpu"
2457             disable cmov
2458         ;;
2459         # targets that do support conditional mov (cmov)
2460         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2461             cpuflags="-march=$cpu"
2462             enable cmov
2463             enable fast_cmov
2464         ;;
2465         # targets that do support conditional mov but on which it's slow
2466         pentium4|pentium4m|prescott|nocona)
2467             cpuflags="-march=$cpu"
2468             enable cmov
2469             disable fast_cmov
2470         ;;
2471     esac
2472
2473 elif enabled sparc; then
2474
2475     case $cpu in
2476         niagara)
2477             cpuflags="-mcpu=$cpu"
2478             disable vis
2479         ;;
2480         sparc64)
2481             cpuflags="-mcpu=v9"
2482         ;;
2483     esac
2484
2485 elif enabled arm; then
2486
2487     case $cpu in
2488         armv*)
2489             cpuflags="-march=$cpu"
2490             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2491         ;;
2492         *)
2493             cpuflags="-mcpu=$cpu"
2494             case $cpu in
2495                 cortex-a*)                               subarch=armv7a  ;;
2496                 cortex-r*)                               subarch=armv7r  ;;
2497                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2498                 arm11*)                                  subarch=armv6   ;;
2499                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2500                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2501             esac
2502         ;;
2503     esac
2504
2505 elif enabled alpha; then
2506
2507     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2508
2509 elif enabled bfin; then
2510
2511     cpuflags="-mcpu=$cpu"
2512
2513 elif enabled mips; then
2514
2515     cpuflags="-march=$cpu"
2516
2517 elif enabled avr32; then
2518
2519     case $cpu in
2520         ap7[02]0[0-2])
2521             subarch="avr32_ap"
2522             cpuflags="-mpart=$cpu"
2523         ;;
2524         ap)
2525             subarch="avr32_ap"
2526             cpuflags="-march=$cpu"
2527         ;;
2528         uc3[ab]*)
2529             subarch="avr32_uc"
2530             cpuflags="-mcpu=$cpu"
2531         ;;
2532         uc)
2533             subarch="avr32_uc"
2534             cpuflags="-march=$cpu"
2535         ;;
2536     esac
2537
2538 fi
2539
2540 add_cflags $cpuflags
2541 add_asflags $cpuflags
2542
2543 # compiler sanity check
2544 check_exec <<EOF
2545 int main(void){ return 0; }
2546 EOF
2547 if test "$?" != 0; then
2548     echo "$cc is unable to create an executable file."
2549     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2550         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2551         echo "Only do this if you know what cross compiling means."
2552     fi
2553     die "C compiler test failed."
2554 fi
2555
2556 add_cppflags -D_ISOC99_SOURCE
2557 add_cxxflags -D__STDC_CONSTANT_MACROS
2558 check_cflags -std=c99
2559 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2560 #include <stdlib.h>
2561 EOF
2562 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2563 #include <stdlib.h>
2564 EOF
2565
2566 check_host_cflags -std=c99
2567 check_host_cflags -Wall
2568
2569 case "$arch" in
2570     alpha|ia64|mips|parisc|sparc)
2571         spic=$shared
2572     ;;
2573     x86)
2574         subarch="x86_32"
2575         check_cc <<EOF && subarch="x86_64"
2576         int test[(int)sizeof(char*) - 7];
2577 EOF
2578         if test "$subarch" = "x86_64"; then
2579             spic=$shared
2580         fi
2581     ;;
2582     ppc)
2583         check_cc <<EOF && subarch="ppc64"
2584         int test[(int)sizeof(char*) - 7];
2585 EOF
2586     ;;
2587 esac
2588
2589 enable $subarch
2590 enabled spic && enable pic
2591
2592 # OS specific
2593 case $target_os in
2594     haiku)
2595         prefix_default="/boot/common"
2596         network_extralibs="-lnetwork"
2597         host_libs=
2598         ;;
2599     sunos)
2600         FFSERVERLDFLAGS=""
2601         SHFLAGS='-shared -Wl,-h,$$(@F)'
2602         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2603         network_extralibs="-lsocket -lnsl"
2604         add_cppflags -D__EXTENSIONS__
2605         # When using suncc to build, the Solaris linker will mark
2606         # an executable with each instruction set encountered by
2607         # the Solaris assembler.  As our libraries contain their own
2608         # guards for processor-specific code, instead suppress
2609         # generation of the HWCAPS ELF section on Solaris x86 only.
2610         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2611         nm_opts='-P -g'
2612         ;;
2613     netbsd)
2614         disable symver
2615         oss_indev_extralibs="-lossaudio"
2616         oss_outdev_extralibs="-lossaudio"
2617         ;;
2618     openbsd)
2619         enable malloc_aligned
2620         # On OpenBSD 4.5. the compiler does not use PIC unless
2621         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2622         # however the generated executable will not do anything
2623         # (simply quits with exit-code 1, no crash, no output).
2624         # Thus explicitly enable PIC here.
2625         enable pic
2626         disable symver
2627         SHFLAGS='-shared'
2628         oss_indev_extralibs="-lossaudio"
2629         oss_outdev_extralibs="-lossaudio"
2630         ;;
2631     dragonfly)
2632         enable malloc_aligned
2633         disable symver
2634         ;;
2635     freebsd)
2636         enable malloc_aligned
2637         ;;
2638     bsd/os)
2639         add_extralibs -lpoll -lgnugetopt
2640         strip="strip -d"
2641         ;;
2642     darwin)
2643         enable malloc_aligned
2644         gas="gas-preprocessor.pl $cc"
2645         enabled ppc && add_asflags -force_cpusubtype_ALL
2646         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2647         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2648         strip="${strip} -x"
2649         add_ldflags -Wl,-dynamic,-search_paths_first
2650         SLIBSUF=".dylib"
2651         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2652         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2653         FFSERVERLDFLAGS=-Wl,-bind_at_load
2654         objformat="macho"
2655         enabled x86_64 && objformat="macho64"
2656         enabled_any pic shared ||
2657             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2658         ;;
2659     mingw32*)
2660         if test $target_os = "mingw32ce"; then
2661             disable network
2662         else
2663             target_os=mingw32
2664         fi
2665         LIBTARGET=i386
2666         if enabled x86_64; then
2667             enable malloc_aligned
2668             LIBTARGET=x64
2669         elif enabled arm; then
2670             LIBTARGET=arm-wince
2671         fi
2672         shlibdir_default="$bindir_default"
2673         SLIBPREF=""
2674         SLIBSUF=".dll"
2675         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2676         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2677         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2678         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2679         SLIB_INSTALL_LINKS=
2680         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2681         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2682         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'
2683         objformat="win32"
2684         enable dos_paths
2685         check_cflags -fno-common
2686         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2687                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2688                 die "ERROR: MinGW runtime version must be >= 3.15."
2689         add_cppflags -U__STRICT_ANSI__
2690         ;;
2691     cygwin*)
2692         target_os=cygwin
2693         shlibdir_default="$bindir_default"
2694         SLIBPREF="cyg"
2695         SLIBSUF=".dll"
2696         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2697         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2698         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2699         objformat="win32"
2700         enable dos_paths
2701         check_cflags -fno-common
2702         add_cppflags -U__STRICT_ANSI__
2703         ;;
2704     *-dos|freedos|opendos)
2705         network_extralibs="-lsocket"
2706         objformat="coff"
2707         enable dos_paths
2708         add_cppflags -U__STRICT_ANSI__
2709         ;;
2710     linux)
2711         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2712         enable dv1394
2713         ;;
2714     irix*)
2715         target_os=irix
2716         ranlib="echo ignoring ranlib"
2717         ;;
2718     os/2*)
2719         strip="lxlite -CS"
2720         ln_s="cp -f"
2721         objformat="aout"
2722         add_cppflags -D_GNU_SOURCE
2723         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2724         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2725         FFSERVERLDFLAGS=""
2726         LIBSUF="_s.a"
2727         SLIBPREF=""
2728         SLIBSUF=".dll"
2729         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2730         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2731         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2732           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2733           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2734           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2735           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2736           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2737         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2738           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2739         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2740         enable dos_paths
2741         enable_weak os2threads
2742         ;;
2743     gnu/kfreebsd)
2744         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2745         ;;
2746     gnu)
2747         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2748         ;;
2749     qnx)
2750         add_cppflags -D_QNX_SOURCE
2751         network_extralibs="-lsocket"
2752         ;;
2753     symbian)
2754         SLIBSUF=".dll"
2755         enable dos_paths
2756         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2757         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2758         add_ldflags -Wl,--target1-abs,--no-undefined \
2759                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2760                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2761         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2762                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2763                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2764         ;;
2765     none)
2766         ;;
2767     *)
2768         die "Unknown OS '$target_os'."
2769         ;;
2770 esac
2771
2772 echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2773
2774 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2775
2776 set_default $PATHS_LIST
2777
2778 # we need to build at least one lib type
2779 if ! enabled_any static shared; then
2780     cat <<EOF
2781 At least one library type must be built.
2782 Specify --enable-static to build the static libraries or --enable-shared to
2783 build the shared libraries as well. To only build the shared libraries specify
2784 --disable-static in addition to --enable-shared.
2785 EOF
2786     exit 1;
2787 fi
2788
2789 die_license_disabled() {
2790     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2791 }
2792
2793 die_license_disabled gpl libcdio
2794 die_license_disabled gpl libx264
2795 die_license_disabled gpl libxavs
2796 die_license_disabled gpl libxvid
2797 die_license_disabled gpl x11grab
2798
2799 die_license_disabled nonfree libaacplus
2800 die_license_disabled nonfree libfaac
2801 die_license_disabled nonfree openssl
2802
2803 die_license_disabled version3 libopencore_amrnb
2804 die_license_disabled version3 libopencore_amrwb
2805 die_license_disabled version3 libvo_aacenc
2806 die_license_disabled version3 libvo_amrwbenc
2807
2808 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2809
2810 disabled optimizations || check_cflags -fomit-frame-pointer
2811
2812 enable_pic() {
2813     enable pic
2814     add_cppflags -DPIC
2815     add_cflags   -fPIC
2816     add_asflags  -fPIC
2817 }
2818
2819 enabled pic && enable_pic
2820
2821 check_cc <<EOF || die "Symbol mangling check failed."
2822 int ff_extern;
2823 EOF
2824 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2825 extern_prefix=${sym%%ff_extern*}
2826
2827 check_cc <<EOF && enable inline_asm
2828 void foo(void) { __asm__ volatile ("" ::); }
2829 EOF
2830
2831 _restrict=
2832 for restrict_keyword in restrict __restrict__ __restrict; do
2833     check_cc <<EOF && _restrict=$restrict_keyword && break
2834 void foo(char * $restrict_keyword p);
2835 EOF
2836 done
2837
2838 check_cc <<EOF && enable attribute_packed
2839 struct { int x; } __attribute__((packed)) x;
2840 EOF
2841
2842 check_cc <<EOF && enable attribute_may_alias
2843 union { int x; } __attribute__((may_alias)) x;
2844 EOF
2845
2846 check_cc <<EOF || die "endian test failed"
2847 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2848 EOF
2849 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2850
2851 if enabled alpha; then
2852
2853     check_cflags -mieee
2854
2855 elif enabled arm; then
2856
2857     enabled thumb && check_cflags -mthumb || check_cflags -marm
2858     nogas=die
2859
2860     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2861         enable vfp_args
2862     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2863         case "${cross_prefix:-$cc}" in
2864             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2865             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2866 __asm__ (".eabi_attribute 28, 1");
2867 int main(void) { return 0; }
2868 EOF
2869         esac
2870         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2871     fi
2872
2873     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2874     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2875     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2876     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2877     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2878     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2879     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
2880
2881     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
2882
2883     enabled_all armv6t2 shared !pic && enable_pic
2884
2885 elif enabled mips; then
2886
2887     check_asm loongson '"dmult.g $1, $2, $3"'
2888     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2889
2890 elif enabled ppc; then
2891
2892     enable local_aligned_8 local_aligned_16
2893
2894     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2895     check_asm ibm_asm   '"add 0, 0, 0"'
2896     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2897     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2898
2899     # AltiVec flags: The FSF version of GCC differs from the Apple version
2900     if enabled altivec; then
2901         nogas=warn
2902         check_cflags -maltivec -mabi=altivec &&
2903         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2904         check_cflags -faltivec
2905
2906         # check if our compiler supports Motorola AltiVec C API
2907         check_cc <<EOF || disable altivec
2908 $inc_altivec_h
2909 int main(void) {
2910     vector signed int v1, v2, v3;
2911     v1 = vec_add(v2,v3);
2912     return 0;
2913 }
2914 EOF
2915
2916         # check if our compiler supports braces for vector declarations
2917         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2918 $inc_altivec_h
2919 int main (void) { (vector int) {1}; return 0; }
2920 EOF
2921     fi
2922
2923 elif enabled sparc; then
2924
2925     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2926         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2927
2928 elif enabled x86; then
2929
2930     enable local_aligned_8 local_aligned_16
2931
2932     # check whether EBP is available on x86
2933     # As 'i' is stored on the stack, this program will crash
2934     # if the base pointer is used to access it because the
2935     # base pointer is cleared in the inline assembly code.
2936     check_exec_crash <<EOF && enable ebp_available
2937     volatile int i=0;
2938     __asm__ volatile (
2939         "xorl %%ebp, %%ebp"
2940     ::: "%ebp");
2941     return i;
2942 EOF
2943
2944     # check whether EBX is available on x86
2945     check_asm ebx_available '""::"b"(0)' &&
2946         check_asm ebx_available '"":::"%ebx"'
2947
2948     # check whether xmm clobbers are supported
2949     check_asm xmm_clobbers '"":::"%xmm0"'
2950
2951     # check whether binutils is new enough to compile SSSE3/MMX2
2952     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2953     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2954
2955     if ! disabled_any asm mmx yasm; then
2956         if check_cmd $yasmexe --version; then
2957             enabled x86_64 && yasm_extra="-m amd64"
2958             yasm_debug="-g dwarf2"
2959         elif check_cmd nasm -v; then
2960             yasmexe=nasm
2961             yasm_debug="-g -F dwarf"
2962             enabled x86_64 && test "$objformat" = elf && objformat=elf64
2963         fi
2964
2965         YASMFLAGS="-f $objformat $yasm_extra"
2966         enabled pic               && append YASMFLAGS "-DPIC"
2967         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2968         case "$objformat" in
2969             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2970         esac
2971
2972         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2973             die "yasm not found, use --disable-yasm for a crippled build"
2974         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
2975     fi
2976
2977     case "$cpu" in
2978         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2979             disable fast_clz
2980         ;;
2981     esac
2982
2983 fi
2984
2985 if enabled asm; then
2986     as=${gas:=$as}
2987     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2988         $nogas "GNU assembler not found, install gas-preprocessor"
2989 fi
2990
2991 check_ldflags -Wl,--as-needed
2992
2993 if check_func dlopen; then
2994     ldl=
2995 elif check_func dlopen -ldl; then
2996     ldl=-ldl
2997 fi
2998
2999 if enabled network; then
3000     check_type "sys/types.h sys/socket.h" socklen_t
3001     check_type netdb.h "struct addrinfo"
3002     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3003     check_type netinet/in.h "struct sockaddr_in6"
3004     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3005     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3006     # Prefer arpa/inet.h over winsock2
3007     if check_header arpa/inet.h ; then
3008         check_func closesocket
3009     elif check_header winsock2.h ; then
3010         check_func_headers winsock2.h closesocket -lws2 && \
3011             network_extralibs="-lws2" || \
3012         { check_func_headers winsock2.h closesocket -lws2_32 && \
3013             network_extralibs="-lws2_32"; }
3014         check_type ws2tcpip.h socklen_t
3015         check_type ws2tcpip.h "struct addrinfo"
3016         check_type ws2tcpip.h "struct ipv6_mreq"
3017         check_type ws2tcpip.h "struct sockaddr_in6"
3018         check_type ws2tcpip.h "struct sockaddr_storage"
3019         check_struct winsock2.h "struct sockaddr" sa_len
3020     else
3021         disable network
3022     fi
3023 fi
3024
3025 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3026 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3027
3028 check_func  fcntl
3029 check_func  fork
3030 check_func  getaddrinfo $network_extralibs
3031 check_func  gethrtime
3032 check_func  getrusage
3033 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3034 check_func  inet_aton $network_extralibs
3035 check_func  isatty
3036 check_func  localtime_r
3037 check_func  ${malloc_prefix}memalign            && enable memalign
3038 check_func  mkstemp
3039 check_func  mmap
3040 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3041 check_func  setrlimit
3042 check_func  strerror_r
3043 check_func  strptime
3044 check_func  sched_getaffinity
3045 check_func  sysconf
3046 check_func  sysctl
3047 check_func_headers conio.h kbhit
3048 check_func_headers windows.h PeekNamedPipe
3049 check_func_headers io.h setmode
3050 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3051 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3052 check_func_headers windows.h GetProcessAffinityMask
3053 check_func_headers windows.h GetProcessTimes
3054 check_func_headers windows.h MapViewOfFile
3055 check_func_headers windows.h VirtualAlloc
3056
3057 check_header dlfcn.h
3058 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3059 check_header libcrystalhd/libcrystalhd_if.h
3060 check_header malloc.h
3061 check_header poll.h
3062 check_header sys/mman.h
3063 check_header sys/param.h
3064 check_header sys/resource.h
3065 check_header sys/select.h
3066 check_header termios.h
3067 check_header vdpau/vdpau.h
3068 check_header vdpau/vdpau_x11.h
3069 check_header X11/extensions/XvMClib.h
3070 check_header asm/types.h
3071
3072 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3073 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3074
3075 # check for VDA header
3076 if ! disabled vda; then
3077     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3078         enable vda
3079         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3080     fi
3081 fi
3082
3083 if ! disabled w32threads && ! enabled pthreads; then
3084     check_func _beginthreadex && enable w32threads
3085 fi
3086
3087 # check for some common methods of building with pthread support
3088 # do this before the optional library checks as some of them require pthreads
3089 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3090     enable pthreads
3091     if check_func pthread_create; then
3092         :
3093     elif check_func pthread_create -pthread; then
3094         add_cflags -pthread
3095         add_extralibs -pthread
3096     elif check_func pthread_create -pthreads; then
3097         add_cflags -pthreads
3098         add_extralibs -pthreads
3099     elif check_func pthread_create -lpthreadGC2; then
3100         add_extralibs -lpthreadGC2
3101     elif ! check_lib pthread.h pthread_create -lpthread; then
3102         disable pthreads
3103     fi
3104 fi
3105
3106 for thread in $THREADS_LIST; do
3107     if enabled $thread; then
3108         test -n "$thread_type" &&
3109             die "ERROR: Only one thread type must be selected." ||
3110             thread_type="$thread"
3111     fi
3112 done
3113
3114 check_lib math.h sin -lm && LIBM="-lm"
3115 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3116 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3117
3118 check_mathfunc cbrtf
3119 check_mathfunc exp2
3120 check_mathfunc exp2f
3121 check_mathfunc llrint
3122 check_mathfunc llrintf
3123 check_mathfunc log2
3124 check_mathfunc log2f
3125 check_mathfunc lrint
3126 check_mathfunc lrintf
3127 check_mathfunc round
3128 check_mathfunc roundf
3129 check_mathfunc trunc
3130 check_mathfunc truncf
3131
3132 # these are off by default, so fail if requested and not available
3133 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3134 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3135 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3136 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3137 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3138 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3139                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3140                         die "ERROR: libcelt version must be >= 0.11.0."; }
3141 enabled libdirac   && require_pkg_config dirac                          \
3142     "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
3143     "dirac_decoder_init dirac_encoder_init"
3144 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3145 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3146 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3147 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3148 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3149 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3150 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3151 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3152 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3153 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3154 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3155 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3156 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3157 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3158 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3159     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3160     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder
3161 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3162 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3163 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3164 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3165 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3166 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3167 enabled libvpx     && {
3168     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3169                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3170     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3171                                 die "ERROR: libvpx encoder version must be >=0.9.6"; } }
3172 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3173                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3174                         die "ERROR: libx264 version must be >= 0.118."; }
3175 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3176 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3177 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3178                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3179                         die "ERROR: openal not found"; } &&
3180                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3181                         die "ERROR: openal version must be 1.1 or compatible"; }
3182 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
3183 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3184                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3185                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3186                         die "ERROR: openssl not found"; }
3187
3188 # libdc1394 check
3189 if enabled libdc1394; then
3190     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3191         enable libdc1394_2; } ||
3192     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3193         enable libdc1394_1; } ||
3194     die "ERROR: No version of libdc1394 found "
3195 fi
3196
3197 SDL_CONFIG="${cross_prefix}sdl-config"
3198 if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
3199     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3200     enable sdl &&
3201     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3202 else
3203   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3204     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3205     sdl_libs=$("${SDL_CONFIG}" --libs)
3206     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3207     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3208     enable sdl &&
3209     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3210   fi
3211 fi
3212 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3213
3214 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3215 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3216
3217 check_header linux/fb.h
3218 check_header linux/videodev.h
3219 check_header linux/videodev2.h
3220 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3221
3222 check_header sys/videoio.h
3223
3224 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3225 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3226 # w32api 3.12 had it defined wrong
3227 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3228
3229 check_type "dshow.h" IBaseFilter
3230
3231 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3232 { check_header dev/bktr/ioctl_meteor.h &&
3233   check_header dev/bktr/ioctl_bt848.h; } ||
3234 { check_header machine/ioctl_meteor.h &&
3235   check_header machine/ioctl_bt848.h; } ||
3236 { check_header dev/video/meteor/ioctl_meteor.h &&
3237   check_header dev/video/bktr/ioctl_bt848.h; } ||
3238 check_header dev/ic/bt8xx.h
3239
3240 check_header sndio.h
3241 if check_struct sys/soundcard.h audio_buf_info bytes; then
3242     enable_safe sys/soundcard.h
3243 else
3244     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3245     #include <sys/soundcard.h>
3246     audio_buf_info abc;
3247 EOF
3248 fi
3249 check_header soundcard.h
3250
3251 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3252
3253 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait
3254
3255 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3256
3257 enabled libcdio &&
3258     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3259
3260 enabled x11grab                         &&
3261 check_header X11/Xlib.h                 &&
3262 check_header X11/extensions/XShm.h      &&
3263 check_header X11/extensions/Xfixes.h    &&
3264 check_func XOpenDisplay -lX11           &&
3265 check_func XShmCreateImage -lX11 -lXext &&
3266 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
3267
3268 if ! disabled vaapi; then
3269     check_lib va/va.h vaInitialize -lva && {
3270         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3271         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3272     } || disable vaapi
3273 fi
3274
3275 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3276 check_cpp_condition \
3277     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3278     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3279       disable vdpau; }
3280 fi
3281
3282 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3283 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3284 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3285
3286 # add some useful compiler flags if supported
3287 check_cflags -Wdeclaration-after-statement
3288 check_cflags -Wall
3289 check_cflags -Wno-parentheses
3290 check_cflags -Wno-switch
3291 check_cflags -Wno-format-zero-length
3292 check_cflags -Wdisabled-optimization
3293 check_cflags -Wpointer-arith
3294 check_cflags -Wredundant-decls
3295 check_cflags -Wno-pointer-sign
3296 check_cflags -Wcast-qual
3297 check_cflags -Wwrite-strings
3298 check_cflags -Wtype-limits
3299 check_cflags -Wundef
3300 check_cflags -Wmissing-prototypes
3301 check_cflags -Wno-pointer-to-int-cast
3302 check_cflags -Wstrict-prototypes
3303 enabled extra_warnings && check_cflags -Winline
3304
3305 # add some linker flags
3306 check_ldflags -Wl,--warn-common
3307 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil
3308 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3309
3310 enabled xmm_clobber_test &&                             \
3311     check_ldflags -Wl,--wrap,avcodec_open2              \
3312                   -Wl,--wrap,avcodec_decode_audio4      \
3313                   -Wl,--wrap,avcodec_decode_video2      \
3314                   -Wl,--wrap,avcodec_decode_subtitle2   \
3315                   -Wl,--wrap,avcodec_encode_audio2      \
3316                   -Wl,--wrap,avcodec_encode_video       \
3317                   -Wl,--wrap,avcodec_encode_subtitle    \
3318                   -Wl,--wrap,sws_scale ||               \
3319     disable xmm_clobber_test
3320
3321 echo "X{};" > $TMPV
3322 if test_ldflags -Wl,--version-script,$TMPV; then
3323     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3324     check_cc <<EOF && enable symver_asm_label
3325 void ff_foo(void) __asm__ ("av_foo@VERSION");
3326 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3327 EOF
3328     check_cc <<EOF && enable symver_gnu_asm
3329 __asm__(".symver ff_foo,av_foo@VERSION");
3330 void ff_foo(void) {}
3331 EOF
3332 fi
3333
3334 if [ -n "$optflags" ]; then
3335     add_cflags $optflags
3336 elif enabled small; then
3337     add_cflags $size_cflags
3338 elif enabled optimizations; then
3339     add_cflags $speed_cflags
3340 else
3341     add_cflags $noopt_cflags
3342 fi
3343 check_cflags -fno-math-errno
3344 check_cflags -fno-signed-zeros
3345 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3346 int x;
3347 EOF
3348
3349
3350 if enabled icc; then
3351     # Just warnings, no remarks
3352     check_cflags -w1
3353     # -wd: Disable following warnings
3354     # 144, 167, 556: -Wno-pointer-sign
3355     # 1292: attribute "foo" ignored
3356     # 10006: ignoring unknown option -fno-signed-zeros
3357     # 10148: ignoring unknown option -Wno-parentheses
3358     # 10156: ignoring option '-W'; no argument required
3359     check_cflags -wd144,167,556,1292,10006,10148,10156
3360     # 11030: Warning unknown option --as-needed
3361     # 10156: ignoring option '-export'; no argument required
3362     check_ldflags -wd10156,11030
3363     # Allow to compile with optimizations
3364     check_ldflags -march=$cpu
3365     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3366     enable ebp_available
3367     if enabled x86_32; then
3368         test ${icc_version%%.*} -ge 11 && \
3369             check_cflags -falign-stack=maintain-16-byte || \
3370             disable aligned_stack
3371     fi
3372 elif enabled ccc; then
3373     # disable some annoying warnings
3374     add_cflags -msg_disable cvtu32to64
3375     add_cflags -msg_disable embedcomment
3376     add_cflags -msg_disable needconstext
3377     add_cflags -msg_disable nomainieee
3378     add_cflags -msg_disable ptrmismatch1
3379     add_cflags -msg_disable unreachcode
3380 elif enabled gcc; then
3381     check_cflags -fno-tree-vectorize
3382     check_cflags -Werror=implicit-function-declaration
3383     check_cflags -Werror=missing-prototypes
3384 elif enabled llvm_gcc; then
3385     check_cflags -mllvm -stack-alignment=16
3386 elif enabled clang; then
3387     check_cflags -mllvm -stack-alignment=16
3388     check_cflags -Qunused-arguments
3389 elif enabled armcc; then
3390     # 2523: use of inline assembler is deprecated
3391     add_cflags -W${armcc_opt},--diag_suppress=2523
3392     add_cflags -W${armcc_opt},--diag_suppress=1207
3393     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3394     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3395     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3396     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3397 elif enabled tms470; then
3398     add_cflags -pds=824 -pds=837
3399 elif enabled pathscale; then
3400     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3401 fi
3402
3403 enabled_any $THREADS_LIST      && enable threads
3404
3405 check_deps $CONFIG_LIST       \
3406            $CONFIG_EXTRA      \
3407            $HAVE_LIST         \
3408            $ALL_COMPONENTS    \
3409            $ALL_TESTS         \
3410
3411 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3412
3413 if test $target_os = "haiku"; then
3414     disable memalign
3415     disable posix_memalign
3416 fi
3417
3418 ! enabled_any memalign posix_memalign malloc_aligned &&
3419     enabled_any $need_memalign && enable memalign_hack
3420
3421 echo "install prefix            $prefix"
3422 echo "source path               $source_path"
3423 echo "C compiler                $cc"
3424 echo "ARCH                      $arch ($cpu)"
3425 if test "$build_suffix" != ""; then
3426     echo "build suffix              $build_suffix"
3427 fi
3428 if test "$progs_suffix" != ""; then
3429     echo "progs suffix              $progs_suffix"
3430 fi
3431 if test "$extra_version" != ""; then
3432     echo "version string suffix     $extra_version"
3433 fi
3434 echo "big-endian                ${bigendian-no}"
3435 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3436 if enabled x86; then
3437     echo "${yasmexe}                      ${yasm-no}"
3438     echo "MMX enabled               ${mmx-no}"
3439     echo "MMX2 enabled              ${mmx2-no}"
3440     echo "3DNow! enabled            ${amd3dnow-no}"
3441     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3442     echo "SSE enabled               ${sse-no}"
3443     echo "SSSE3 enabled             ${ssse3-no}"
3444     echo "AVX enabled               ${avx-no}"
3445     echo "CMOV enabled              ${cmov-no}"
3446     echo "CMOV is fast              ${fast_cmov-no}"
3447     echo "EBX available             ${ebx_available-no}"
3448     echo "EBP available             ${ebp_available-no}"
3449 fi
3450 if enabled arm; then
3451     echo "ARMv5TE enabled           ${armv5te-no}"
3452     echo "ARMv6 enabled             ${armv6-no}"
3453     echo "ARMv6T2 enabled           ${armv6t2-no}"
3454     echo "ARM VFP enabled           ${armvfp-no}"
3455     echo "IWMMXT enabled            ${iwmmxt-no}"
3456     echo "NEON enabled              ${neon-no}"
3457 fi
3458 if enabled mips; then
3459     echo "MMI enabled               ${mmi-no}"
3460 fi
3461 if enabled ppc; then
3462     echo "AltiVec enabled           ${altivec-no}"
3463     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3464     echo "dcbzl available           ${dcbzl-no}"
3465 fi
3466 if enabled sparc; then
3467     echo "VIS enabled               ${vis-no}"
3468 fi
3469 echo "debug symbols             ${debug-no}"
3470 echo "strip symbols             ${stripping-no}"
3471 echo "optimize for size         ${small-no}"
3472 echo "optimizations             ${optimizations-no}"
3473 echo "static                    ${static-no}"
3474 echo "shared                    ${shared-no}"
3475 echo "postprocessing support    ${postproc-no}"
3476 echo "new filter support        ${avfilter-no}"
3477 echo "network support           ${network-no}"
3478 echo "threading support         ${thread_type-no}"
3479 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3480 echo "SDL support               ${sdl-no}"
3481 echo "Sun medialib support      ${mlib-no}"
3482 echo "libdxva2 enabled          ${dxva2-no}"
3483 echo "libva enabled             ${vaapi-no}"
3484 echo "libvdpau enabled          ${vdpau-no}"
3485 echo "AVISynth enabled          ${avisynth-no}"
3486 echo "frei0r enabled            ${frei0r-no}"
3487 echo "gnutls enabled            ${gnutls-no}"
3488 echo "libaacplus enabled        ${libaacplus-no}"
3489 echo "libass enabled            ${libass-no}"
3490 echo "libcdio support           ${libcdio-no}"
3491 echo "libcelt enabled           ${libcelt-no}"
3492 echo "libdc1394 support         ${libdc1394-no}"
3493 echo "libdirac enabled          ${libdirac-no}"
3494 echo "libfaac enabled           ${libfaac-no}"
3495 echo "libgsm enabled            ${libgsm-no}"
3496 echo "libmodplug enabled        ${libmodplug-no}"
3497 echo "libmp3lame enabled        ${libmp3lame-no}"
3498 echo "libnut enabled            ${libnut-no}"
3499 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3500 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3501 echo "libopencv support         ${libopencv-no}"
3502 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3503 echo "libpulse enabled          ${libpulse-no}"
3504 echo "librtmp enabled           ${librtmp-no}"
3505 echo "libschroedinger enabled   ${libschroedinger-no}"
3506 echo "libspeex enabled          ${libspeex-no}"
3507 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3508 echo "libtheora enabled         ${libtheora-no}"
3509 echo "libutvideo enabled        ${libutvideo-no}"
3510 echo "libv4l2 enabled           ${libv4l2-no}"
3511 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3512 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3513 echo "libvorbis enabled         ${libvorbis-no}"
3514 echo "libvpx enabled            ${libvpx-no}"
3515 echo "libx264 enabled           ${libx264-no}"
3516 echo "libxavs enabled           ${libxavs-no}"
3517 echo "libxvid enabled           ${libxvid-no}"
3518 echo "openal enabled            ${openal-no}"
3519 echo "openssl enabled           ${openssl-no}"
3520 echo "zlib enabled              ${zlib-no}"
3521 echo "bzlib enabled             ${bzlib-no}"
3522 echo
3523
3524 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3525     echo "Enabled ${type}s:"
3526     eval list=\$$(toupper $type)_LIST
3527     print_enabled '_*' $list | sort | pr -r -3 -t
3528     echo
3529 done
3530
3531 license="LGPL version 2.1 or later"
3532 if enabled nonfree; then
3533     license="nonfree and unredistributable"
3534 elif enabled gplv3; then
3535     license="GPL version 3 or later"
3536 elif enabled lgplv3; then
3537     license="LGPL version 3 or later"
3538 elif enabled gpl; then
3539     license="GPL version 2 or later"
3540 fi
3541
3542 echo "License: $license"
3543
3544 echo "Creating config.mak and config.h..."
3545
3546 test -e Makefile || $ln_s "$source_path/Makefile" .
3547
3548 enabled stripping || strip="echo skipping strip"
3549
3550 config_files="$TMPH config.mak"
3551
3552 cat > config.mak <<EOF
3553 # Automatically generated by configure - do not modify!
3554 ifndef FFMPEG_CONFIG_MAK
3555 FFMPEG_CONFIG_MAK=1
3556 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3557 prefix=$prefix
3558 LIBDIR=\$(DESTDIR)$libdir
3559 SHLIBDIR=\$(DESTDIR)$shlibdir
3560 INCDIR=\$(DESTDIR)$incdir
3561 BINDIR=\$(DESTDIR)$bindir
3562 DATADIR=\$(DESTDIR)$datadir
3563 MANDIR=\$(DESTDIR)$mandir
3564 SRC_PATH=$source_path
3565 ifndef MAIN_MAKEFILE
3566 SRC_PATH:=\$(SRC_PATH:.%=..%)
3567 endif
3568 CC_IDENT=$cc_ident
3569 ARCH=$arch
3570 CC=$cc
3571 CXX=$cxx
3572 AS=$as
3573 LD=$ld
3574 DEPCC=$dep_cc
3575 YASM=$yasmexe
3576 YASMDEP=$yasmexe
3577 AR=$ar
3578 RANLIB=$ranlib
3579 CP=cp -p
3580 LN_S=$ln_s
3581 STRIP=$strip
3582 CPPFLAGS=$CPPFLAGS
3583 CFLAGS=$CFLAGS
3584 CXXFLAGS=$CXXFLAGS
3585 ASFLAGS=$ASFLAGS
3586 AS_O=$CC_O
3587 CC_O=$CC_O
3588 CXX_O=$CXX_O
3589 LDFLAGS=$LDFLAGS
3590 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3591 SHFLAGS=$SHFLAGS
3592 YASMFLAGS=$YASMFLAGS
3593 BUILDSUF=$build_suffix
3594 PROGSSUF=$progs_suffix
3595 FULLNAME=$FULLNAME
3596 LIBPREF=$LIBPREF
3597 LIBSUF=$LIBSUF
3598 LIBNAME=$LIBNAME
3599 SLIBPREF=$SLIBPREF
3600 SLIBSUF=$SLIBSUF
3601 EXESUF=$EXESUF
3602 EXTRA_VERSION=$extra_version
3603 DEPFLAGS=$DEPFLAGS
3604 CCDEP=$CCDEP
3605 CXXDEP=$CXXDEP
3606 ASDEP=$ASDEP
3607 CC_DEPFLAGS=$CC_DEPFLAGS
3608 AS_DEPFLAGS=$AS_DEPFLAGS
3609 HOSTCC=$host_cc
3610 HOSTCFLAGS=$host_cflags
3611 HOSTEXESUF=$HOSTEXESUF
3612 HOSTLDFLAGS=$host_ldflags
3613 HOSTLIBS=$host_libs
3614 TARGET_EXEC=$target_exec
3615 TARGET_PATH=$target_path
3616 SDL_LIBS=$sdl_libs
3617 SDL_CFLAGS=$sdl_cflags
3618 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3619 EXTRALIBS=$extralibs
3620 INSTALL=$install
3621 LIBTARGET=${LIBTARGET}
3622 SLIBNAME=${SLIBNAME}
3623 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3624 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3625 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3626 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3627 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3628 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3629 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3630 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3631 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3632 NOREDZONE_FLAGS=$noredzone_flags
3633 EOF
3634
3635 get_version(){
3636     name=$1
3637     file=$source_path/$2
3638 # This condition will be removed when we stop supporting old libpostproc versions
3639 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3640     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3641     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3642 fi
3643     lcname=$(tolower $name)
3644     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3645     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3646 }
3647
3648 get_version LIBAVCODEC  libavcodec/version.h
3649 get_version LIBAVDEVICE libavdevice/avdevice.h
3650 get_version LIBAVFILTER libavfilter/version.h
3651 get_version LIBAVFORMAT libavformat/version.h
3652 get_version LIBAVUTIL   libavutil/avutil.h
3653 get_version LIBPOSTPROC libpostproc/postprocess.h
3654 get_version LIBSWRESAMPLE libswresample/swresample.h
3655 get_version LIBSWSCALE  libswscale/swscale.h
3656
3657 cat > $TMPH <<EOF
3658 /* Automatically generated by configure - do not modify! */
3659 #ifndef FFMPEG_CONFIG_H
3660 #define FFMPEG_CONFIG_H
3661 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3662 #define FFMPEG_LICENSE "$(c_escape $license)"
3663 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3664 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3665 #define CC_TYPE "$cc_type"
3666 #define CC_VERSION $cc_version
3667 #define restrict $_restrict
3668 #define EXTERN_PREFIX "${extern_prefix}"
3669 #define EXTERN_ASM ${extern_prefix}
3670 #define SLIBSUF "$SLIBSUF"
3671 EOF
3672
3673 test -n "$malloc_prefix" &&
3674     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3675
3676 if enabled small || disabled optimizations; then
3677     echo "#undef  av_always_inline"  >> $TMPH
3678     if enabled small; then
3679         echo "#define av_always_inline inline"  >> $TMPH
3680     else
3681         echo "#define av_always_inline av_unused"  >> $TMPH
3682     fi
3683 fi
3684
3685 if enabled yasm; then
3686     append config_files $TMPASM
3687     printf '' >$TMPASM
3688 fi
3689
3690 print_config ARCH_   "$config_files" $ARCH_LIST
3691 print_config HAVE_   "$config_files" $HAVE_LIST
3692 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3693                                      $CONFIG_EXTRA      \
3694                                      $ALL_COMPONENTS    \
3695
3696 cat >>config.mak <<EOF
3697 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3698 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3699 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3700 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3701 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3702 EOF
3703
3704 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3705 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3706
3707 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3708 cp_if_changed $TMPH config.h
3709 touch .config
3710
3711 enabled yasm && cp_if_changed $TMPASM config.asm
3712
3713 cat > $TMPH <<EOF
3714 /* Generated by ffconf */
3715 #ifndef AVUTIL_AVCONFIG_H
3716 #define AVUTIL_AVCONFIG_H
3717 EOF
3718
3719 test "$postproc_version" != current && cat >> $TMPH <<EOF
3720 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3721 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3722 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3723 EOF
3724
3725 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3726
3727 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3728
3729 cp_if_changed $TMPH libavutil/avconfig.h
3730
3731 test -n "$WARNINGS" && printf "\n$WARNINGS"
3732
3733 # build pkg-config files
3734
3735 pkgconfig_generate(){
3736 name=$1
3737 shortname=${name#lib}${build_suffix}
3738 comment=$2
3739 version=$3
3740 libs=$4
3741 requires=$5
3742 enabled ${name#lib} || return 0
3743 mkdir -p $name
3744 cat <<EOF > $name/$name.pc
3745 prefix=$prefix
3746 exec_prefix=\${prefix}
3747 libdir=$libdir
3748 includedir=$incdir
3749
3750 Name: $name
3751 Description: $comment
3752 Version: $version
3753 Requires: $(enabled shared || echo $requires)
3754 Requires.private: $(enabled shared && echo $requires)
3755 Conflicts:
3756 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3757 Libs.private: $(enabled shared && echo $libs)
3758 Cflags: -I\${includedir}
3759 EOF
3760 cat <<EOF > $name/$name-uninstalled.pc
3761 prefix=
3762 exec_prefix=
3763 libdir=\${pcfiledir}
3764 includedir=${source_path}
3765
3766 Name: $name
3767 Description: $comment
3768 Version: $version
3769 Requires: $requires
3770 Conflicts:
3771 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3772 Cflags: -I\${includedir}
3773 EOF
3774 }
3775
3776 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3777 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3778 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3779 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3780 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3781 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3782 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3783 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"