configure

   1 #!/bin/sh
   2 #
   3 # Libav 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 LIBAV, 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 Libav."
  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 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
  58
  59 show_help(){
  60     cat <<EOF
  61 Usage: configure [options]
  62 Options: [defaults in brackets after descriptions]
  63
  64 Help options:
  65   --help                   print this message
  66   --list-decoders          show all available decoders
  67   --list-encoders          show all available encoders
  68   --list-hwaccels          show all available hardware accelerators
  69   --list-demuxers          show all available demuxers
  70   --list-muxers            show all available muxers
  71   --list-parsers           show all available parsers
  72   --list-protocols         show all available protocols
  73   --list-bsfs              show all available bitstream filters
  74   --list-indevs            show all available input devices
  75   --list-outdevs           show all available output devices
  76   --list-filters           show all available filters
  77
  78 Standard options:
  79   --logfile=FILE           log tests and output to FILE [config.log]
  80   --disable-logging        do not log configure debug information
  81   --prefix=PREFIX          install in PREFIX [$prefix]
  82   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  83   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
  84   --libdir=DIR             install libs in DIR [PREFIX/lib]
  85   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  86   --incdir=DIR             install includes in DIR [PREFIX/include]
  87   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  88
  89 Licensing options:
  90   --enable-gpl             allow use of GPL code, the resulting libs
  91                            and binaries will be under GPL [no]
  92   --enable-version3        upgrade (L)GPL to version 3 [no]
  93   --enable-nonfree         allow use of nonfree code, the resulting libs
  94                            and binaries will be unredistributable [no]
  95
  96 Configuration options:
  97   --disable-static         do not build static libraries [no]
  98   --enable-shared          build shared libraries [no]
  99   --enable-small           optimize for size instead of speed
 100   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 101   --enable-gray            enable full grayscale support (slower color)
 102   --disable-swscale-alpha  disable alpha channel support in swscale
 103   --disable-all            disable building components, libraries and programs
 104
 105 Program options:
 106   --disable-programs       do not build command line programs
 107   --disable-avconv         disable avconv build
 108   --disable-avplay         disable avplay build
 109   --disable-avprobe        disable avprobe build
 110   --disable-avserver       disable avserver build
 111
 112 Component options:
 113   --disable-doc            do not build documentation
 114   --disable-avdevice       disable libavdevice build
 115   --disable-avcodec        disable libavcodec build
 116   --disable-avformat       disable libavformat build
 117   --disable-avutil         disable libavutil build
 118   --disable-swscale        disable libswscale build
 119   --disable-avfilter       disable video filter support [no]
 120   --disable-avresample     disable libavresample build [no]
 121   --disable-pthreads       disable pthreads [auto]
 122   --disable-w32threads     disable Win32 threads [auto]
 123   --enable-x11grab         enable X11 grabbing [no]
 124   --disable-network        disable network support [no]
 125   --disable-dct            disable DCT code
 126   --disable-lsp            disable LSP code
 127   --disable-lzo            disable LZO decoder code
 128   --disable-mdct           disable MDCT code
 129   --disable-rdft           disable RDFT code
 130   --disable-fft            disable FFT code
 131   --enable-dxva2           enable DXVA2 code
 132   --enable-vaapi           enable VAAPI code
 133   --enable-vda             enable VDA code
 134   --enable-vdpau           enable VDPAU code
 135
 136 Individual component options:
 137   --disable-everything     disable all components listed below
 138   --disable-encoder=NAME   disable encoder NAME
 139   --enable-encoder=NAME    enable encoder NAME
 140   --disable-encoders       disable all encoders
 141   --disable-decoder=NAME   disable decoder NAME
 142   --enable-decoder=NAME    enable decoder NAME
 143   --disable-decoders       disable all decoders
 144   --disable-hwaccel=NAME   disable hwaccel NAME
 145   --enable-hwaccel=NAME    enable hwaccel NAME
 146   --disable-hwaccels       disable all hwaccels
 147   --disable-muxer=NAME     disable muxer NAME
 148   --enable-muxer=NAME      enable muxer NAME
 149   --disable-muxers         disable all muxers
 150   --disable-demuxer=NAME   disable demuxer NAME
 151   --enable-demuxer=NAME    enable demuxer NAME
 152   --disable-demuxers       disable all demuxers
 153   --enable-parser=NAME     enable parser NAME
 154   --disable-parser=NAME    disable parser NAME
 155   --disable-parsers        disable all parsers
 156   --enable-bsf=NAME        enable bitstream filter NAME
 157   --disable-bsf=NAME       disable bitstream filter NAME
 158   --disable-bsfs           disable all bitstream filters
 159   --enable-protocol=NAME   enable protocol NAME
 160   --disable-protocol=NAME  disable protocol NAME
 161   --disable-protocols      disable all protocols
 162   --enable-indev=NAME      enable input device NAME
 163   --disable-indev=NAME     disable input device NAME
 164   --disable-indevs         disable input devices
 165   --enable-outdev=NAME     enable output device NAME
 166   --disable-outdev=NAME    disable output device NAME
 167   --disable-outdevs        disable output devices
 168   --disable-devices        disable all devices
 169   --enable-filter=NAME     enable filter NAME
 170   --disable-filter=NAME    disable filter NAME
 171   --disable-filters        disable all filters
 172
 173 External library support:
 174   --enable-avisynth        enable reading of AVISynth script files [no]
 175   --enable-bzlib           enable bzlib [autodetect]
 176   --enable-frei0r          enable frei0r video filtering
 177   --enable-gnutls          enable gnutls [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-libfaac         enable AAC encoding via libfaac [no]
 182   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 183   --enable-libfreetype     enable libfreetype [no]
 184   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 185   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 186   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 187   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 188   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 189   --enable-libopencv       enable video filtering via libopencv [no]
 190   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 191   --enable-libopus         enable Opus decoding via libopus [no]
 192   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 193   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 194   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 195   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 196   --enable-libtheora       enable Theora encoding via libtheora [no]
 197   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 198   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 199   --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
 200   --enable-libvpx          enable VP8 and VP9 de/encoding via libvpx [no]
 201   --enable-libx264         enable H.264 encoding via x264 [no]
 202   --enable-libxavs         enable AVS encoding via xavs [no]
 203   --enable-libxvid         enable Xvid encoding via xvidcore,
 204                            native MPEG-4/Xvid encoder exists [no]
 205   --enable-openssl         enable openssl [no]
 206   --enable-zlib            enable zlib [autodetect]
 207
 208 Advanced options (experts only):
 209   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 210   --enable-cross-compile   assume a cross-compiler is used
 211   --sysroot=PATH           root of cross-build tree
 212   --sysinclude=PATH        location of cross-build system headers
 213   --target-os=OS           compiler targets OS [$target_os]
 214   --target-exec=CMD        command to run executables on target
 215   --target-path=DIR        path to view of build directory on target
 216   --toolchain=NAME         set tool defaults according to NAME
 217   --nm=NM                  use nm tool
 218   --ar=AR                  use archive tool AR [$ar_default]
 219   --as=AS                  use assembler AS [$as_default]
 220   --cc=CC                  use C compiler CC [$cc_default]
 221   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
 222   --ld=LD                  use linker LD
 223   --host-cc=HOSTCC         use host C compiler HOSTCC
 224   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 225   --host-ld=HOSTLD         use host linker HOSTLD
 226   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 227   --host-libs=HLIBS        use libs HLIBS when linking for host
 228   --host-os=OS             compiler host OS [$target_os]
 229   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 230   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 231   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 232   --extra-version=STRING   version string suffix []
 233   --optflags=OPTFLAGS      override optimization-related compiler flags
 234   --build-suffix=SUFFIX    library name suffix []
 235   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 236   --arch=ARCH              select architecture [$arch]
 237   --cpu=CPU                select the minimum required CPU (affects
 238                            instruction selection, may crash on older CPUs)
 239   --enable-pic             build position-independent code
 240   --enable-sram            allow use of on-chip SRAM
 241   --enable-thumb           compile for Thumb instruction set
 242   --disable-symver         disable symbol versioning
 243   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 244   --disable-safe-bitstream-reader
 245                            disable buffer boundary checking in bitreaders
 246                            (faster, but may crash)
 247   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 248   --enable-lto             use link-time optimization
 249
 250 Optimization options (experts only):
 251   --disable-asm            disable all assembler optimizations
 252   --disable-altivec        disable AltiVec optimizations
 253   --disable-amd3dnow       disable 3DNow! optimizations
 254   --disable-amd3dnowext    disable 3DNow! extended optimizations
 255   --disable-mmx            disable MMX optimizations
 256   --disable-mmxext         disable MMXEXT optimizations
 257   --disable-sse            disable SSE optimizations
 258   --disable-sse2           disable SSE2 optimizations
 259   --disable-sse3           disable SSE3 optimizations
 260   --disable-ssse3          disable SSSE3 optimizations
 261   --disable-sse4           disable SSE4 optimizations
 262   --disable-sse42          disable SSE4.2 optimizations
 263   --disable-avx            disable AVX optimizations
 264   --disable-fma4           disable FMA4 optimizations
 265   --disable-armv5te        disable armv5te optimizations
 266   --disable-armv6          disable armv6 optimizations
 267   --disable-armv6t2        disable armv6t2 optimizations
 268   --disable-vfp            disable VFP optimizations
 269   --disable-neon           disable NEON optimizations
 270   --disable-vis            disable VIS optimizations
 271   --disable-inline-asm     disable use of inline assembler
 272   --disable-yasm           disable use of yasm assembler
 273
 274 Developer options (useful when working on Libav itself):
 275   --disable-debug          disable debugging symbols
 276   --enable-debug=LEVEL     set the debug level [$debuglevel]
 277   --disable-optimizations  disable compiler optimizations
 278   --enable-extra-warnings  enable more compiler warnings
 279   --samples=PATH           location of test samples for FATE, if not set use
 280                            \$LIBAV_SAMPLES at make invocation time.
 281   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 282                            should be used only for debugging purposes)
 283   --enable-random          randomly enable/disable components
 284   --disable-random
 285   --enable-random=LIST     randomly enable/disable specific components or
 286   --disable-random=LIST    component groups. LIST is a comma-separated list
 287                            of NAME[:PROB] entries where NAME is a component
 288                            (group) and PROB the probability associated with
 289                            NAME (default 0.5).
 290   --random-seed=VALUE      seed value for --enable/disable-random
 291
 292 NOTE: Object files are built at the place where configure is launched.
 293 EOF
 294   exit 0
 295 }
 296
 297 quotes='""'
 298
 299 log(){
 300     echo "$@" >> $logfile
 301 }
 302
 303 log_file(){
 304     log BEGIN $1
 305     pr -n -t $1 >> $logfile
 306     log END $1
 307 }
 308
 309 echolog(){
 310     log "$@"
 311     echo "$@"
 312 }
 313
 314 warn(){
 315     log "WARNING: $*"
 316     WARNINGS="${WARNINGS}WARNING: $*\n"
 317 }
 318
 319 die(){
 320     echolog "$@"
 321     cat <<EOF
 322
 323 If you think configure made a mistake, make sure you are using the latest
 324 version from Git.  If the latest version fails, report the problem to the
 325 libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
 326 EOF
 327     if disabled logging; then
 328         cat <<EOF
 329 Rerun configure with logging enabled (do not use --disable-logging), and
 330 include the log this produces with your report.
 331 EOF
 332     else
 333         cat <<EOF
 334 Include the log file "$logfile" produced by configure as this will help
 335 solving the problem.
 336 EOF
 337     fi
 338     exit 1
 339 }
 340
 341 # Avoid locale weirdness, besides we really just want to translate ASCII.
 342 toupper(){
 343     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 344 }
 345
 346 tolower(){
 347     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 348 }
 349
 350 c_escape(){
 351     echo "$*" | sed 's/["\\]/\\\0/g'
 352 }
 353
 354 sh_quote(){
 355     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 356     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 357     echo "$v"
 358 }
 359
 360 cleanws(){
 361     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 362 }
 363
 364 filter(){
 365     pat=$1
 366     shift
 367     for v; do
 368         eval "case $v in $pat) echo $v ;; esac"
 369     done
 370 }
 371
 372 filter_out(){
 373     pat=$1
 374     shift
 375     for v; do
 376         eval "case $v in $pat) ;; *) echo $v ;; esac"
 377     done
 378 }
 379
 380 map(){
 381     m=$1
 382     shift
 383     for v; do eval $m; done
 384 }
 385
 386 add_suffix(){
 387     suffix=$1
 388     shift
 389     for v; do echo ${v}${suffix}; done
 390 }
 391
 392 set_all(){
 393     value=$1
 394     shift
 395     for var in $*; do
 396         eval $var=$value
 397     done
 398 }
 399
 400 set_weak(){
 401     value=$1
 402     shift
 403     for var; do
 404         eval : \${$var:=$value}
 405     done
 406 }
 407
 408 set_safe(){
 409     var=$1
 410     shift
 411     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 412 }
 413
 414 get_safe(){
 415     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 416 }
 417
 418 pushvar(){
 419     for var in $*; do
 420         eval level=\${${var}_level:=0}
 421         eval ${var}_${level}="\$$var"
 422         eval ${var}_level=$(($level+1))
 423     done
 424 }
 425
 426 popvar(){
 427     for var in $*; do
 428         eval level=\${${var}_level:-0}
 429         test $level = 0 && continue
 430         eval level=$(($level-1))
 431         eval $var="\${${var}_${level}}"
 432         eval ${var}_level=$level
 433         eval unset ${var}_${level}
 434     done
 435 }
 436
 437 enable(){
 438     set_all yes $*
 439 }
 440
 441 disable(){
 442     set_all no $*
 443 }
 444
 445 enable_weak(){
 446     set_weak yes $*
 447 }
 448
 449 disable_weak(){
 450     set_weak no $*
 451 }
 452
 453 enable_safe(){
 454     for var; do
 455         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 456     done
 457 }
 458
 459 disable_safe(){
 460     for var; do
 461         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 462     done
 463 }
 464
 465 do_enable_deep(){
 466     for var; do
 467         enabled $var && continue
 468         eval sel="\$${var}_select"
 469         eval sgs="\$${var}_suggest"
 470         pushvar var sgs
 471         enable_deep $sel
 472         popvar sgs
 473         enable_deep_weak $sgs
 474         popvar var
 475     done
 476 }
 477
 478 enable_deep(){
 479     do_enable_deep $*
 480     enable $*
 481 }
 482
 483 enable_deep_weak(){
 484     do_enable_deep $*
 485     enable_weak $*
 486 }
 487
 488 enabled(){
 489     test "${1#!}" = "$1" && op== || op=!=
 490     eval test "x\$${1#!}" $op "xyes"
 491 }
 492
 493 disabled(){
 494     test "${1#!}" = "$1" && op== || op=!=
 495     eval test "x\$${1#!}" $op "xno"
 496 }
 497
 498 enabled_all(){
 499     for opt; do
 500         enabled $opt || return 1
 501     done
 502 }
 503
 504 disabled_all(){
 505     for opt; do
 506         disabled $opt || return 1
 507     done
 508 }
 509
 510 enabled_any(){
 511     for opt; do
 512         enabled $opt && return 0
 513     done
 514 }
 515
 516 disabled_any(){
 517     for opt; do
 518         disabled $opt && return 0
 519     done
 520     return 1
 521 }
 522
 523 set_default(){
 524     for opt; do
 525         eval : \${$opt:=\$${opt}_default}
 526     done
 527 }
 528
 529 is_in(){
 530     value=$1
 531     shift
 532     for var in $*; do
 533         [ $var = $value ] && return 0
 534     done
 535     return 1
 536 }
 537
 538 do_check_deps(){
 539     for cfg; do
 540         cfg="${cfg#!}"
 541         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 542         disabled ${cfg}_checking && continue
 543         enable ${cfg}_checking
 544         append allopts $cfg
 545
 546         eval dep_all="\$${cfg}_deps"
 547         eval dep_any="\$${cfg}_deps_any"
 548         eval dep_sel="\$${cfg}_select"
 549         eval dep_sgs="\$${cfg}_suggest"
 550         eval dep_ifa="\$${cfg}_if"
 551         eval dep_ifn="\$${cfg}_if_any"
 552
 553         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 554         do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 555         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 556
 557         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 558         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 559         enabled_all  $dep_all || disable $cfg
 560         enabled_any  $dep_any || disable $cfg
 561         disabled_any $dep_sel && disable $cfg
 562
 563         if enabled $cfg; then
 564             enable_deep $dep_sel
 565             enable_deep_weak $dep_sgs
 566         fi
 567
 568         disable ${cfg}_checking
 569     done
 570 }
 571
 572 check_deps(){
 573     unset allopts
 574
 575     do_check_deps "$@"
 576
 577     for cfg in $allopts; do
 578         enabled $cfg || continue
 579         eval dep_extralibs="\$${cfg}_extralibs"
 580         test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 581     done
 582 }
 583
 584 print_config(){
 585     pfx=$1
 586     files=$2
 587     shift 2
 588     map 'eval echo "$v \${$v:-no}"' "$@" |
 589     awk "BEGIN { split(\"$files\", files) }
 590         {
 591             c = \"$pfx\" toupper(\$1);
 592             v = \$2;
 593             sub(/yes/, 1, v);
 594             sub(/no/,  0, v);
 595             for (f in files) {
 596                 file = files[f];
 597                 if (file ~ /\\.h\$/) {
 598                     printf(\"#define %s %d\\n\", c, v) >>file;
 599                 } else if (file ~ /\\.asm\$/) {
 600                     printf(\"%%define %s %d\\n\", c, v) >>file;
 601                 } else if (file ~ /\\.mak\$/) {
 602                     n = -v ? \"\" : \"!\";
 603                     printf(\"%s%s=yes\\n\", n, c) >>file;
 604                 }
 605             }
 606         }"
 607 }
 608
 609 print_enabled(){
 610     suf=$1
 611     shift
 612     for v; do
 613         enabled $v && printf "%s\n" ${v%$suf};
 614     done
 615 }
 616
 617 append(){
 618     var=$1
 619     shift
 620     eval "$var=\"\$$var $*\""
 621 }
 622
 623 prepend(){
 624     var=$1
 625     shift
 626     eval "$var=\"$* \$$var\""
 627 }
 628
 629 add_cppflags(){
 630     append CPPFLAGS "$@"
 631 }
 632
 633 add_cflags(){
 634     append CFLAGS $($cflags_filter "$@")
 635 }
 636
 637 add_asflags(){
 638     append ASFLAGS $($asflags_filter "$@")
 639 }
 640
 641 add_ldflags(){
 642     append LDFLAGS $($ldflags_filter "$@")
 643 }
 644
 645 add_extralibs(){
 646     prepend extralibs $($ldflags_filter "$@")
 647 }
 648
 649 add_host_cflags(){
 650     append host_cflags $($host_cflags_filter "$@")
 651 }
 652
 653 add_host_ldflags(){
 654     append host_ldflags $($host_ldflags_filter "$@")
 655 }
 656
 657 add_compat(){
 658     append compat_objs $1
 659     shift
 660     map 'add_cppflags -D$v' "$@"
 661 }
 662
 663 check_cmd(){
 664     log "$@"
 665     "$@" >> $logfile 2>&1
 666 }
 667
 668 cc_o(){
 669     eval printf '%s\\n' $CC_O
 670 }
 671
 672 cc_e(){
 673     eval printf '%s\\n' $CC_E
 674 }
 675
 676 check_cc(){
 677     log check_cc "$@"
 678     cat > $TMPC
 679     log_file $TMPC
 680     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
 681 }
 682
 683 check_cpp(){
 684     log check_cpp "$@"
 685     cat > $TMPC
 686     log_file $TMPC
 687     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
 688 }
 689
 690 as_o(){
 691     eval printf '%s\\n' $AS_O
 692 }
 693
 694 check_as(){
 695     log check_as "$@"
 696     cat > $TMPS
 697     log_file $TMPS
 698     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
 699 }
 700
 701 check_inline_asm(){
 702     log check_inline_asm "$@"
 703     name="$1"
 704     code="$2"
 705     shift 2
 706     disable $name
 707     check_cc "$@" <<EOF && enable $name
 708 void foo(void){ __asm__ volatile($code); }
 709 EOF
 710 }
 711
 712 check_insn(){
 713     log check_insn "$@"
 714     check_inline_asm ${1}_inline "\"$2\""
 715     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
 716 }
 717
 718 check_yasm(){
 719     log check_yasm "$@"
 720     echo "$1" > $TMPS
 721     log_file $TMPS
 722     shift 1
 723     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 724 }
 725
 726 ld_o(){
 727     eval printf '%s\\n' $LD_O
 728 }
 729
 730 check_ld(){
 731     log check_ld "$@"
 732     flags=$(filter_out '-l*' "$@")
 733     libs=$(filter '-l*' "$@")
 734     check_cc $($cflags_filter $flags) || return
 735     flags=$($ldflags_filter $flags)
 736     libs=$($ldflags_filter $libs)
 737     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
 738 }
 739
 740 check_code(){
 741     log check_code "$@"
 742     check=$1
 743     headers=$2
 744     code=$3
 745     shift 3
 746     {
 747         for hdr in $headers; do
 748             echo "#include <$hdr>"
 749         done
 750         echo "int main(void) { $code; return 0; }"
 751     } | check_$check "$@"
 752 }
 753
 754 check_cppflags(){
 755     log check_cppflags "$@"
 756     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 757 int x;
 758 EOF
 759 }
 760
 761 check_cflags(){
 762     log check_cflags "$@"
 763     set -- $($cflags_filter "$@")
 764     check_cc "$@" <<EOF && append CFLAGS "$@"
 765 int x;
 766 EOF
 767 }
 768
 769 test_ldflags(){
 770     log test_ldflags "$@"
 771     check_ld "$@" <<EOF
 772 int main(void){ return 0; }
 773 EOF
 774 }
 775
 776 check_ldflags(){
 777     log check_ldflags "$@"
 778     test_ldflags "$@" && add_ldflags "$@"
 779 }
 780
 781 check_header(){
 782     log check_header "$@"
 783     header=$1
 784     shift
 785     disable_safe $header
 786     check_cpp "$@" <<EOF && enable_safe $header
 787 #include <$header>
 788 int x;
 789 EOF
 790 }
 791
 792 check_func(){
 793     log check_func "$@"
 794     func=$1
 795     shift
 796     disable $func
 797     check_ld "$@" <<EOF && enable $func
 798 extern int $func();
 799 int main(void){ $func(); }
 800 EOF
 801 }
 802
 803 check_mathfunc(){
 804     log check_mathfunc "$@"
 805     func=$1
 806     narg=$2
 807     shift 2
 808     test $narg = 2 && args="f, g" || args="f"
 809     disable $func
 810     check_ld "$@" <<EOF && enable $func
 811 #include <math.h>
 812 float foo(float f, float g) { return $func($args); }
 813 int main(void){ return 0; }
 814 EOF
 815 }
 816
 817 check_func_headers(){
 818     log check_func_headers "$@"
 819     headers=$1
 820     funcs=$2
 821     shift 2
 822     {
 823         for hdr in $headers; do
 824             echo "#include <$hdr>"
 825         done
 826         for func in $funcs; do
 827             echo "long check_$func(void) { return (long) $func; }"
 828         done
 829         echo "int main(void) { return 0; }"
 830     } | check_ld "$@" && enable $funcs && enable_safe $headers
 831 }
 832
 833 check_cpp_condition(){
 834     log check_cpp_condition "$@"
 835     header=$1
 836     condition=$2
 837     shift 2
 838     check_cpp "$@" <<EOF
 839 #include <$header>
 840 #if !($condition)
 841 #error "unsatisfied condition: $condition"
 842 #endif
 843 EOF
 844 }
 845
 846 check_lib(){
 847     log check_lib "$@"
 848     header="$1"
 849     func="$2"
 850     shift 2
 851     check_header $header && check_func $func "$@" && add_extralibs "$@"
 852 }
 853
 854 check_lib2(){
 855     log check_lib2 "$@"
 856     headers="$1"
 857     funcs="$2"
 858     shift 2
 859     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 860 }
 861
 862 check_pkg_config(){
 863     log check_pkg_config "$@"
 864     pkg="$1"
 865     headers="$2"
 866     funcs="$3"
 867     shift 3
 868     $pkg_config --exists $pkg || return
 869     pkg_cflags=$($pkg_config --cflags $pkg)
 870     pkg_libs=$($pkg_config --libs $pkg)
 871     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 872         set_safe ${pkg}_cflags $pkg_cflags   &&
 873         set_safe ${pkg}_libs   $pkg_libs
 874 }
 875
 876 check_exec(){
 877     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 878 }
 879
 880 check_exec_crash(){
 881     code=$(cat)
 882
 883     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 884     # are safe but may not be available everywhere.  Thus we use
 885     # raise(SIGTERM) instead.  The check is run in a subshell so we
 886     # can redirect the "Terminated" message from the shell.  SIGBUS
 887     # is not defined by standard C so it is used conditionally.
 888
 889     (check_exec "$@") >> $logfile 2>&1 <<EOF
 890 #include <signal.h>
 891 static void sighandler(int sig){
 892     raise(SIGTERM);
 893 }
 894 int foo(void){
 895     $code
 896 }
 897 int main(void){
 898     signal(SIGILL, sighandler);
 899     signal(SIGFPE, sighandler);
 900     signal(SIGSEGV, sighandler);
 901 #ifdef SIGBUS
 902     signal(SIGBUS, sighandler);
 903 #endif
 904     foo();
 905 }
 906 EOF
 907 }
 908
 909 check_type(){
 910     log check_type "$@"
 911     headers=$1
 912     type=$2
 913     shift 2
 914     disable_safe "$type"
 915     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 916 }
 917
 918 check_struct(){
 919     log check_type "$@"
 920     headers=$1
 921     struct=$2
 922     member=$3
 923     shift 3
 924     disable_safe "${struct}_${member}"
 925     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 926         enable_safe "${struct}_${member}"
 927 }
 928
 929 require(){
 930     name="$1"
 931     header="$2"
 932     func="$3"
 933     shift 3
 934     check_lib $header $func "$@" || die "ERROR: $name not found"
 935 }
 936
 937 require2(){
 938     name="$1"
 939     headers="$2"
 940     func="$3"
 941     shift 3
 942     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 943 }
 944
 945 require_pkg_config(){
 946     pkg="$1"
 947     check_pkg_config "$@" || die "ERROR: $pkg not found"
 948     add_cflags    $(get_safe ${pkg}_cflags)
 949     add_extralibs $(get_safe ${pkg}_libs)
 950 }
 951
 952 hostcc_o(){
 953     eval printf '%s\\n' $HOSTCC_O
 954 }
 955
 956 check_host_cc(){
 957     log check_host_cc "$@"
 958     cat > $TMPC
 959     log_file $TMPC
 960     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
 961 }
 962
 963 check_host_cflags(){
 964     log check_host_cflags "$@"
 965     set -- $($host_cflags_filter "$@")
 966     check_host_cc "$@" <<EOF && append host_cflags "$@"
 967 int x;
 968 EOF
 969 }
 970
 971 apply(){
 972     file=$1
 973     shift
 974     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 975 }
 976
 977 cp_if_changed(){
 978     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 979     mkdir -p "$(dirname $2)"
 980     $cp_f "$1" "$2"
 981 }
 982
 983 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 984 # system-dependent things.
 985
 986 COMPONENT_LIST="
 987     bsfs
 988     decoders
 989     demuxers
 990     encoders
 991     filters
 992     hwaccels
 993     indevs
 994     muxers
 995     outdevs
 996     parsers
 997     protocols
 998 "
 999
1000 LIBRARY_LIST="
1001     avcodec
1002     avdevice
1003     avfilter
1004     avformat
1005     avresample
1006     avutil
1007     swscale
1008 "
1009
1010 PROGRAM_LIST="
1011     avconv
1012     avplay
1013     avprobe
1014     avserver
1015 "
1016
1017 CONFIG_LIST="
1018     $COMPONENT_LIST
1019     $LIBRARY_LIST
1020     $PROGRAM_LIST
1021     avisynth
1022     bzlib
1023     dct
1024     doc
1025     dxva2
1026     fft
1027     frei0r
1028     gnutls
1029     gpl
1030     gray
1031     hardcoded_tables
1032     libcdio
1033     libdc1394
1034     libfaac
1035     libfdk_aac
1036     libfreetype
1037     libgsm
1038     libilbc
1039     libmp3lame
1040     libopencore_amrnb
1041     libopencore_amrwb
1042     libopencv
1043     libopenjpeg
1044     libopus
1045     libpulse
1046     librtmp
1047     libschroedinger
1048     libspeex
1049     libtheora
1050     libvo_aacenc
1051     libvo_amrwbenc
1052     libvorbis
1053     libvpx
1054     libx264
1055     libxavs
1056     libxvid
1057     lsp
1058     lzo
1059     mdct
1060     memalign_hack
1061     network
1062     nonfree
1063     openssl
1064     pic
1065     rdft
1066     runtime_cpudetect
1067     safe_bitstream_reader
1068     shared
1069     small
1070     sram
1071     static
1072     swscale_alpha
1073     thumb
1074     vaapi
1075     vda
1076     vdpau
1077     version3
1078     xmm_clobber_test
1079     x11grab
1080     zlib
1081 "
1082
1083 THREADS_LIST='
1084     pthreads
1085     w32threads
1086 '
1087
1088 ARCH_LIST='
1089     aarch64
1090     alpha
1091     arm
1092     avr32
1093     avr32_ap
1094     avr32_uc
1095     bfin
1096     ia64
1097     m68k
1098     mips
1099     mips64
1100     parisc
1101     ppc
1102     ppc64
1103     s390
1104     sh4
1105     sparc
1106     sparc64
1107     tilegx
1108     tilepro
1109     tomi
1110     x86
1111     x86_32
1112     x86_64
1113 '
1114
1115 ARCH_EXT_LIST_ARM='
1116     armv5te
1117     armv6
1118     armv6t2
1119     neon
1120     vfp
1121     vfpv3
1122 '
1123
1124 ARCH_EXT_LIST_X86='
1125     amd3dnow
1126     amd3dnowext
1127     avx
1128     fma4
1129     mmx
1130     mmxext
1131     sse
1132     sse2
1133     sse3
1134     sse4
1135     sse42
1136     ssse3
1137 '
1138
1139 ARCH_EXT_LIST="
1140     $ARCH_EXT_LIST_ARM
1141     $ARCH_EXT_LIST_X86
1142     altivec
1143     ppc4xx
1144     vis
1145 "
1146
1147 HAVE_LIST_CMDLINE='
1148     inline_asm
1149     symver
1150     yasm
1151 '
1152
1153 HAVE_LIST_PUB='
1154     bigendian
1155     fast_unaligned
1156 '
1157
1158 MATH_FUNCS="
1159     atanf
1160     atan2f
1161     cbrtf
1162     cosf
1163     exp2
1164     exp2f
1165     expf
1166     isinf
1167     isnan
1168     ldexpf
1169     llrint
1170     llrintf
1171     log2
1172     log2f
1173     log10f
1174     lrint
1175     lrintf
1176     powf
1177     rint
1178     round
1179     roundf
1180     sinf
1181     trunc
1182     truncf
1183 "
1184
1185 HAVE_LIST="
1186     $ARCH_EXT_LIST
1187     $(add_suffix _external $ARCH_EXT_LIST)
1188     $(add_suffix _inline   $ARCH_EXT_LIST)
1189     $HAVE_LIST_CMDLINE
1190     $HAVE_LIST_PUB
1191     $THREADS_LIST
1192     $MATH_FUNCS
1193     aligned_malloc
1194     aligned_stack
1195     alsa_asoundlib_h
1196     altivec_h
1197     arpa_inet_h
1198     asm_mod_q
1199     asm_mod_y
1200     attribute_may_alias
1201     attribute_packed
1202     cdio_paranoia_h
1203     cdio_paranoia_paranoia_h
1204     closesocket
1205     cmov
1206     CommandLineToArgvW
1207     cpunop
1208     CryptGenRandom
1209     dcbzl
1210     dev_bktr_ioctl_bt848_h
1211     dev_bktr_ioctl_meteor_h
1212     dev_ic_bt8xx_h
1213     dev_video_bktr_ioctl_bt848_h
1214     dev_video_meteor_ioctl_meteor_h
1215     direct_h
1216     dlfcn_h
1217     dlopen
1218     dos_paths
1219     dxva_h
1220     ebp_available
1221     ebx_available
1222     fast_64bit
1223     fast_clz
1224     fast_cmov
1225     fcntl
1226     fork
1227     getaddrinfo
1228     gethrtime
1229     getopt
1230     GetProcessAffinityMask
1231     GetProcessMemoryInfo
1232     GetProcessTimes
1233     GetSystemTimeAsFileTime
1234     getrusage
1235     getservbyport
1236     gettimeofday
1237     gnu_as
1238     gsm_h
1239     ibm_asm
1240     inet_aton
1241     io_h
1242     isatty
1243     jack_port_get_latency_range
1244     ldbrx
1245     libdc1394_1
1246     libdc1394_2
1247     local_aligned_16
1248     local_aligned_8
1249     localtime_r
1250     loongson
1251     machine_ioctl_bt848_h
1252     machine_ioctl_meteor_h
1253     malloc_h
1254     MapViewOfFile
1255     memalign
1256     mkstemp
1257     mm_empty
1258     mmap
1259     mprotect
1260     msvcrt
1261     nanosleep
1262     poll_h
1263     posix_memalign
1264     rdtsc
1265     sched_getaffinity
1266     sdl
1267     sdl_video_size
1268     SetConsoleTextAttribute
1269     setmode
1270     setrlimit
1271     Sleep
1272     sndio_h
1273     socklen_t
1274     soundcard_h
1275     strerror_r
1276     strptime
1277     strtok_r
1278     struct_addrinfo
1279     struct_group_source_req
1280     struct_ip_mreq_source
1281     struct_ipv6_mreq
1282     struct_pollfd
1283     struct_rusage_ru_maxrss
1284     struct_sockaddr_in6
1285     struct_sockaddr_sa_len
1286     struct_sockaddr_storage
1287     struct_v4l2_frmivalenum_discrete
1288     symver_asm_label
1289     symver_gnu_asm
1290     sysconf
1291     sysctl
1292     sys_mman_h
1293     sys_param_h
1294     sys_resource_h
1295     sys_select_h
1296     sys_soundcard_h
1297     sys_time_h
1298     sys_videoio_h
1299     threads
1300     unistd_h
1301     usleep
1302     vfp_args
1303     VirtualAlloc
1304     windows_h
1305     winsock2_h
1306     xform_asm
1307     xmm_clobbers
1308 "
1309
1310 # options emitted with CONFIG_ prefix but not available on the command line
1311 CONFIG_EXTRA="
1312     aandcttables
1313     ac3dsp
1314     error_resilience
1315     gcrypt
1316     golomb
1317     gplv3
1318     h264chroma
1319     h264dsp
1320     h264pred
1321     h264qpel
1322     huffman
1323     lgplv3
1324     lpc
1325     mpegaudio
1326     mpegaudiodsp
1327     mpegvideo
1328     mpegvideoenc
1329     nettle
1330     rangecoder
1331     rtpdec
1332     rtpenc_chain
1333     sinewin
1334     videodsp
1335     vp3dsp
1336 "
1337
1338 CMDLINE_SELECT="
1339     $ARCH_EXT_LIST
1340     $CONFIG_LIST
1341     $HAVE_LIST_CMDLINE
1342     $THREADS_LIST
1343     asm
1344     cross_compile
1345     debug
1346     extra_warnings
1347     logging
1348     lto
1349     optimizations
1350 "
1351
1352 PATHS_LIST='
1353     bindir
1354     datadir
1355     incdir
1356     libdir
1357     mandir
1358     prefix
1359     shlibdir
1360 '
1361
1362 CMDLINE_SET="
1363     $PATHS_LIST
1364     ar
1365     arch
1366     as
1367     build_suffix
1368     cc
1369     cpu
1370     cross_prefix
1371     dep_cc
1372     extra_version
1373     host_cc
1374     host_cflags
1375     host_ld
1376     host_ldflags
1377     host_libs
1378     host_os
1379     ld
1380     logfile
1381     malloc_prefix
1382     nm
1383     optflags
1384     pkg_config
1385     random_seed
1386     samples
1387     sysinclude
1388     sysroot
1389     target_exec
1390     target_os
1391     target_path
1392     toolchain
1393 "
1394
1395 CMDLINE_APPEND="
1396     extra_cflags
1397 "
1398
1399 # code dependency declarations
1400
1401 # architecture extensions
1402
1403 armv5te_deps="arm"
1404 armv6_deps="arm"
1405 armv6t2_deps="arm"
1406 neon_deps="arm"
1407 vfp_deps="arm"
1408 vfpv3_deps="vfp"
1409
1410 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1411
1412 altivec_deps="ppc"
1413 ppc4xx_deps="ppc"
1414
1415 vis_deps="sparc"
1416
1417 x86_64_suggest="cmov fast_cmov"
1418
1419 amd3dnow_deps="mmx"
1420 amd3dnowext_deps="amd3dnow"
1421 mmx_deps="x86"
1422 mmxext_deps="mmx"
1423 sse_deps="mmxext"
1424 sse2_deps="sse"
1425 sse3_deps="sse2"
1426 ssse3_deps="sse3"
1427 sse4_deps="ssse3"
1428 sse42_deps="sse4"
1429 avx_deps="sse42"
1430 fma4_deps="avx"
1431
1432 mmx_external_deps="yasm"
1433 mmx_inline_deps="inline_asm"
1434 mmx_suggest="mmx_external mmx_inline"
1435
1436 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86); do
1437     eval dep=\$${ext}_deps
1438     eval ${ext}_external_deps='"${dep}_external"'
1439     eval ${ext}_inline_deps='"${dep}_inline"'
1440     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1441 done
1442
1443 aligned_stack_if_any="ppc x86"
1444 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1445 fast_clz_if_any="alpha avr32 mips ppc x86"
1446 fast_unaligned_if_any="ppc x86"
1447
1448 inline_asm_deps="!tms470"
1449 need_memalign="altivec neon sse"
1450
1451 symver_if_any="symver_asm_label symver_gnu_asm"
1452
1453 log2_deps="!msvcrt"
1454
1455 # subsystems
1456 dct_select="rdft"
1457 mdct_select="fft"
1458 rdft_select="fft"
1459 mpegaudio_select="mpegaudiodsp"
1460 mpegaudiodsp_select="dct"
1461 mpegvideo_select="videodsp"
1462 mpegvideoenc_select="mpegvideo"
1463
1464 # decoders / encoders
1465 aac_decoder_select="mdct sinewin"
1466 aac_encoder_select="mdct sinewin"
1467 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1468 ac3_decoder_select="mdct ac3dsp ac3_parser"
1469 ac3_encoder_select="mdct ac3dsp"
1470 ac3_fixed_encoder_select="mdct ac3dsp"
1471 alac_encoder_select="lpc"
1472 amrnb_decoder_select="lsp"
1473 amrwb_decoder_select="lsp"
1474 atrac1_decoder_select="mdct sinewin"
1475 atrac3_decoder_select="mdct"
1476 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1477 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1478 cavs_decoder_select="golomb mpegvideo"
1479 comfortnoise_encoder_select="lpc"
1480 cook_decoder_select="mdct sinewin"
1481 cscd_decoder_select="lzo"
1482 cscd_decoder_suggest="zlib"
1483 dca_decoder_select="mdct"
1484 dnxhd_encoder_select="aandcttables mpegvideoenc"
1485 dxa_decoder_select="zlib"
1486 eac3_decoder_select="ac3_decoder"
1487 eac3_encoder_select="ac3_encoder"
1488 eamad_decoder_select="aandcttables error_resilience mpegvideo"
1489 eatgq_decoder_select="aandcttables"
1490 eatqi_decoder_select="aandcttables error_resilience mpegvideo"
1491 ffv1_decoder_select="golomb rangecoder"
1492 ffv1_encoder_select="rangecoder"
1493 ffvhuff_encoder_select="huffman"
1494 flac_decoder_select="golomb"
1495 flac_encoder_select="golomb lpc"
1496 flashsv_decoder_select="zlib"
1497 flashsv_encoder_select="zlib"
1498 flashsv2_decoder_select="zlib"
1499 flv_decoder_select="h263_decoder"
1500 flv_encoder_select="h263_encoder"
1501 fraps_decoder_select="huffman"
1502 h261_decoder_select="error_resilience mpegvideo"
1503 h261_encoder_select="aandcttables mpegvideoenc"
1504 h263_decoder_select="error_resilience h263_parser mpegvideo"
1505 h263_encoder_select="aandcttables error_resilience mpegvideoenc"
1506 h263i_decoder_select="h263_decoder"
1507 h263p_encoder_select="h263_encoder"
1508 h264_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1509 huffyuv_encoder_select="huffman"
1510 iac_decoder_select="fft mdct sinewin"
1511 imc_decoder_select="fft mdct sinewin"
1512 jpegls_decoder_select="golomb"
1513 jpegls_encoder_select="golomb"
1514 ljpeg_encoder_select="aandcttables mpegvideoenc"
1515 loco_decoder_select="golomb"
1516 mdec_decoder_select="error_resilience mpegvideo"
1517 mjpeg_encoder_select="aandcttables mpegvideoenc"
1518 mlp_decoder_select="mlp_parser"
1519 mp1_decoder_select="mpegaudio"
1520 mp1float_decoder_select="mpegaudio"
1521 mp2_decoder_select="mpegaudio"
1522 mp2float_decoder_select="mpegaudio"
1523 mp3_decoder_select="mpegaudio"
1524 mp3adu_decoder_select="mpegaudio"
1525 mp3adufloat_decoder_select="mpegaudio"
1526 mp3float_decoder_select="mpegaudio"
1527 mp3on4_decoder_select="mpegaudio"
1528 mp3on4float_decoder_select="mpegaudio"
1529 mpc7_decoder_select="mpegaudiodsp"
1530 mpc8_decoder_select="mpegaudiodsp"
1531 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1532 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1533 mpeg1video_decoder_select="error_resilience mpegvideo"
1534 mpeg1video_encoder_select="aandcttables error_resilience mpegvideoenc"
1535 mpeg2video_decoder_select="error_resilience mpegvideo"
1536 mpeg2video_encoder_select="aandcttables error_resilience mpegvideoenc"
1537 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1538 mpeg4_encoder_select="h263_encoder"
1539 msmpeg4v1_decoder_select="h263_decoder"
1540 msmpeg4v1_encoder_select="h263_encoder"
1541 msmpeg4v2_decoder_select="h263_decoder"
1542 msmpeg4v2_encoder_select="h263_encoder"
1543 msmpeg4v3_decoder_select="h263_decoder"
1544 msmpeg4v3_encoder_select="h263_encoder"
1545 mss2_decoder_select="vc1_decoder"
1546 nellymoser_decoder_select="mdct sinewin"
1547 nellymoser_encoder_select="mdct sinewin"
1548 nuv_decoder_select="lzo"
1549 png_decoder_select="zlib"
1550 png_encoder_select="zlib"
1551 qcelp_decoder_select="lsp"
1552 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1553 ra_144_encoder_select="lpc"
1554 ralf_decoder_select="golomb"
1555 rv10_decoder_select="h263_decoder"
1556 rv10_encoder_select="h263_encoder"
1557 rv20_decoder_select="h263_decoder"
1558 rv20_encoder_select="h263_encoder"
1559 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1560 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpegvideo"
1561 shorten_decoder_select="golomb"
1562 sipr_decoder_select="lsp"
1563 svq1_decoder_select="error_resilience mpegvideo"
1564 svq1_encoder_select="aandcttables error_resilience mpegvideoenc"
1565 svq3_decoder_select="error_resilience golomb h264chroma h264dsp h264pred h264qpel mpegvideo"
1566 svq3_decoder_suggest="zlib"
1567 theora_decoder_select="vp3_decoder"
1568 tiff_decoder_suggest="zlib"
1569 tiff_encoder_suggest="zlib"
1570 truehd_decoder_select="mlp_decoder"
1571 tscc_decoder_select="zlib"
1572 twinvq_decoder_select="mdct lsp sinewin"
1573 utvideo_encoder_select="huffman"
1574 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1575 vc1image_decoder_select="vc1_decoder"
1576 vorbis_decoder_select="mdct"
1577 vorbis_encoder_select="mdct"
1578 vp3_decoder_select="vp3dsp videodsp"
1579 vp5_decoder_select="vp3dsp videodsp"
1580 vp6_decoder_select="huffman vp3dsp videodsp"
1581 vp6a_decoder_select="vp6_decoder"
1582 vp6f_decoder_select="vp6_decoder"
1583 vp8_decoder_select="h264pred videodsp"
1584 wmapro_decoder_select="mdct sinewin"
1585 wmav1_decoder_select="mdct sinewin"
1586 wmav1_encoder_select="mdct sinewin"
1587 wmav2_decoder_select="mdct sinewin"
1588 wmav2_encoder_select="mdct sinewin"
1589 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1590 wmv1_decoder_select="h263_decoder"
1591 wmv1_encoder_select="h263_encoder"
1592 wmv2_decoder_select="h263_decoder"
1593 wmv2_encoder_select="h263_encoder"
1594 wmv3_decoder_select="vc1_decoder"
1595 wmv3image_decoder_select="wmv3_decoder"
1596 zerocodec_decoder_select="zlib"
1597 zlib_decoder_select="zlib"
1598 zlib_encoder_select="zlib"
1599 zmbv_decoder_select="zlib"
1600 zmbv_encoder_select="zlib"
1601
1602 # hardware accelerators
1603 vaapi_deps="va_va_h"
1604 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1605 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1606
1607 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1608 h263_vdpau_hwaccel_select="vdpau h263_decoder"
1609 h264_dxva2_hwaccel_deps="dxva2api_h"
1610 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1611 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1612 h264_vda_hwaccel_select="vda h264_decoder"
1613 h264_vdpau_decoder_select="vdpau h264_decoder"
1614 h264_vdpau_hwaccel_select="vdpau h264_decoder"
1615 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1616 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1617 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1618 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1619 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1620 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1621 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1622 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1623 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1624 mpeg4_vdpau_hwaccel_select="vdpau mpeg4_decoder"
1625 vc1_dxva2_hwaccel_deps="dxva2api_h"
1626 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1627 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1628 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1629 vc1_vdpau_hwaccel_select="vdpau vc1_decoder"
1630 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1631 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1632 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1633 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
1634
1635 # parsers
1636 h264_parser_select="error_resilience golomb h264dsp h264pred h264qpel mpegvideo"
1637 mpeg4video_parser_select="error_resilience mpegvideo"
1638 mpegvideo_parser_select="error_resilience mpegvideo"
1639 vc1_parser_select="error_resilience mpegvideo"
1640
1641 # external libraries
1642 libfaac_encoder_deps="libfaac"
1643 libfdk_aac_encoder_deps="libfdk_aac"
1644 libgsm_decoder_deps="libgsm"
1645 libgsm_encoder_deps="libgsm"
1646 libgsm_ms_decoder_deps="libgsm"
1647 libgsm_ms_encoder_deps="libgsm"
1648 libilbc_decoder_deps="libilbc"
1649 libilbc_encoder_deps="libilbc"
1650 libmp3lame_encoder_deps="libmp3lame"
1651 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1652 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1653 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1654 libopenjpeg_decoder_deps="libopenjpeg"
1655 libopenjpeg_encoder_deps="libopenjpeg"
1656 libopus_decoder_deps="libopus"
1657 libopus_encoder_deps="libopus"
1658 libschroedinger_decoder_deps="libschroedinger"
1659 libschroedinger_encoder_deps="libschroedinger"
1660 libspeex_decoder_deps="libspeex"
1661 libspeex_encoder_deps="libspeex"
1662 libtheora_encoder_deps="libtheora"
1663 libvo_aacenc_encoder_deps="libvo_aacenc"
1664 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1665 libvorbis_encoder_deps="libvorbis"
1666 libvpx_vp8_decoder_deps="libvpx"
1667 libvpx_vp8_encoder_deps="libvpx"
1668 libvpx_vp9_decoder_deps="libvpx"
1669 libvpx_vp9_encoder_deps="libvpx"
1670 libx264_encoder_deps="libx264"
1671 libxavs_encoder_deps="libxavs"
1672 libxvid_encoder_deps="libxvid"
1673
1674 # demuxers / muxers
1675 ac3_demuxer_select="ac3_parser"
1676 asf_stream_muxer_select="asf_muxer"
1677 avisynth_demuxer_deps="avisynth"
1678 dirac_demuxer_select="dirac_parser"
1679 eac3_demuxer_select="ac3_parser"
1680 flac_demuxer_select="flac_parser"
1681 ipod_muxer_select="mov_muxer"
1682 ismv_muxer_select="mov_muxer"
1683 matroska_audio_muxer_select="matroska_muxer"
1684 matroska_demuxer_suggest="bzlib lzo zlib"
1685 mov_demuxer_suggest="zlib"
1686 mov_muxer_select="rtpenc_chain"
1687 mp3_demuxer_select="mpegaudio_parser"
1688 mp4_muxer_select="mov_muxer"
1689 mpegts_muxer_select="adts_muxer latm_muxer mpegvideo"
1690 mpegtsraw_demuxer_select="mpegts_demuxer"
1691 mxf_d10_muxer_select="mxf_muxer"
1692 ogg_demuxer_select="golomb"
1693 psp_muxer_select="mov_muxer"
1694 rtp_demuxer_select="sdp_demuxer"
1695 rtp_muxer_select="mpegvideo"
1696 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1697 rtsp_demuxer_select="http_protocol rtpdec"
1698 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
1699 sap_demuxer_select="sdp_demuxer"
1700 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
1701 sdp_demuxer_select="rtpdec"
1702 smoothstreaming_muxer_select="ismv_muxer"
1703 spdif_muxer_select="aac_parser"
1704 tak_demuxer_select="tak_parser"
1705 tg2_muxer_select="mov_muxer"
1706 tgp_muxer_select="mov_muxer"
1707 w64_demuxer_deps="wav_demuxer"
1708
1709 # indevs / outdevs
1710 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1711 alsa_outdev_deps="alsa_asoundlib_h"
1712 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1713 dv1394_indev_deps="dv1394 dv_demuxer"
1714 fbdev_indev_deps="linux_fb_h"
1715 jack_indev_deps="jack_jack_h"
1716 libcdio_indev_deps="libcdio"
1717 libdc1394_indev_deps="libdc1394"
1718 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1719 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1720 pulse_indev_deps="libpulse"
1721 sndio_indev_deps="sndio_h"
1722 sndio_outdev_deps="sndio_h"
1723 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1724 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1725 vfwcap_indev_extralibs="-lavicap32"
1726 x11grab_indev_deps="x11grab XShmCreateImage"
1727
1728 # protocols
1729 ffrtmpcrypt_protocol_deps="!librtmp_protocol"
1730 ffrtmpcrypt_protocol_deps_any="gcrypt nettle openssl"
1731 ffrtmpcrypt_protocol_select="tcp_protocol"
1732 ffrtmphttp_protocol_deps="!librtmp_protocol"
1733 ffrtmphttp_protocol_select="http_protocol"
1734 gopher_protocol_select="network"
1735 httpproxy_protocol_select="tcp_protocol"
1736 http_protocol_select="tcp_protocol"
1737 https_protocol_select="tls_protocol"
1738 librtmp_protocol_deps="librtmp"
1739 librtmpe_protocol_deps="librtmp"
1740 librtmps_protocol_deps="librtmp"
1741 librtmpt_protocol_deps="librtmp"
1742 librtmpte_protocol_deps="librtmp"
1743 mmsh_protocol_select="http_protocol"
1744 mmst_protocol_select="network"
1745 rtmp_protocol_deps="!librtmp_protocol"
1746 rtmp_protocol_select="tcp_protocol"
1747 rtmpe_protocol_select="ffrtmpcrypt_protocol"
1748 rtmps_protocol_deps="!librtmp_protocol"
1749 rtmps_protocol_select="tls_protocol"
1750 rtmpt_protocol_select="ffrtmphttp_protocol"
1751 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
1752 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
1753 rtp_protocol_select="udp_protocol"
1754 sctp_protocol_deps="struct_sctp_event_subscribe"
1755 sctp_protocol_select="network"
1756 srtp_protocol_select="rtp_protocol"
1757 tcp_protocol_select="network"
1758 tls_protocol_deps_any="openssl gnutls"
1759 tls_protocol_select="tcp_protocol"
1760 udp_protocol_select="network"
1761
1762 # filters
1763 blackframe_filter_deps="gpl"
1764 boxblur_filter_deps="gpl"
1765 cropdetect_filter_deps="gpl"
1766 delogo_filter_deps="gpl"
1767 drawtext_filter_deps="libfreetype"
1768 frei0r_filter_deps="frei0r dlopen strtok_r"
1769 frei0r_filter_extralibs='$ldl'
1770 frei0r_src_filter_deps="frei0r dlopen strtok_r"
1771 frei0r_src_filter_extralibs='$ldl'
1772 hqdn3d_filter_deps="gpl"
1773 resample_filter_deps="avresample"
1774 ocv_filter_deps="libopencv"
1775 scale_filter_deps="swscale"
1776 yadif_filter_deps="gpl"
1777
1778 # libraries
1779 avcodec_deps="avutil"
1780 avdevice_deps="avutil avcodec avformat"
1781 avfilter_deps="avutil"
1782 avformat_deps="avutil avcodec"
1783 avresample_deps="avutil"
1784 swscale_deps="avutil"
1785
1786 # programs
1787 avconv_deps="avcodec avfilter avformat avresample swscale"
1788 avconv_select="aformat_filter anull_filter asyncts_filter format_filter
1789                fps_filter null_filter resample_filter scale_filter
1790                setpts_filter"
1791 avplay_deps="avcodec avformat avresample swscale sdl"
1792 avplay_select="rdft"
1793 avprobe_deps="avcodec avformat"
1794 avserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer !shared"
1795 avserver_extralibs='$ldl'
1796
1797 doc_deps="texi2html"
1798
1799 # default parameters
1800
1801 logfile="config.log"
1802
1803 # installation paths
1804 prefix_default="/usr/local"
1805 bindir_default='${prefix}/bin'
1806 datadir_default='${prefix}/share/avconv'
1807 incdir_default='${prefix}/include'
1808 libdir_default='${prefix}/lib'
1809 mandir_default='${prefix}/share/man'
1810 shlibdir_default="$libdir_default"
1811
1812 # toolchain
1813 ar_default="ar"
1814 cc_default="gcc"
1815 host_cc_default="gcc"
1816 cp_f="cp -f"
1817 ln_s="ln -sf"
1818 nm_default="nm -g"
1819 objformat="elf"
1820 pkg_config_default=pkg-config
1821 ranlib="ranlib"
1822 yasmexe="yasm"
1823
1824 nogas=":"
1825
1826 # machine
1827 arch_default=$(uname -m)
1828 cpu="generic"
1829
1830 # OS
1831 target_os_default=$(tolower $(uname -s))
1832 host_os=$target_os_default
1833
1834 # configurable options
1835 enable $LIBRARY_LIST $PROGRAM_LIST
1836
1837 enable asm
1838 enable debug
1839 enable doc
1840 enable optimizations
1841 enable safe_bitstream_reader
1842 enable static
1843 enable swscale_alpha
1844
1845 # build settings
1846 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1847 AVSERVERLDFLAGS=-Wl,-E
1848 LIBPREF="lib"
1849 LIBSUF=".a"
1850 FULLNAME='$(NAME)$(BUILDSUF)'
1851 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1852 SLIBPREF="lib"
1853 SLIBSUF=".so"
1854 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1855 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1856 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1857 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1858 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1859 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1860
1861 asflags_filter=echo
1862 cflags_filter=echo
1863 ldflags_filter=echo
1864
1865 AS_C='-c'
1866 AS_O='-o $@'
1867 CC_C='-c'
1868 CC_E='-E -o $@'
1869 CC_O='-o $@'
1870 LD_O='-o $@'
1871 LD_LIB='-l%'
1872 LD_PATH='-L'
1873 HOSTCC_C='-c'
1874 HOSTCC_O='-o $@'
1875 HOSTLD_O='-o $@'
1876
1877 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1878 host_libs='-lm'
1879 host_cflags_filter=echo
1880 host_ldflags_filter=echo
1881
1882 target_path='$(CURDIR)'
1883
1884 # since the object filename is not given with the -MM flag, the compiler
1885 # is only able to print the basename, and we must add the path ourselves
1886 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1887 DEPFLAGS='-MM'
1888
1889 # find source path
1890 if test -f configure; then
1891     source_path=.
1892 else
1893     source_path=$(cd $(dirname "$0"); pwd)
1894     echo "$source_path" | grep -q '[[:blank:]]' &&
1895         die "Out of tree builds are impossible with whitespace in source path."
1896     test -e "$source_path/config.h" &&
1897         die "Out of tree builds are impossible with config.h in source dir."
1898 fi
1899
1900 for v in "$@"; do
1901     r=${v#*=}
1902     l=${v%"$r"}
1903     r=$(sh_quote "$r")
1904     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1905 done
1906
1907 find_things(){
1908     thing=$1
1909     pattern=$2
1910     file=$source_path/$3
1911     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1912 }
1913
1914 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1915 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1916 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1917 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1918 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1919 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1920 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1921 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1922 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1923 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1924 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1925
1926 ALL_COMPONENTS="
1927     $BSF_LIST
1928     $DECODER_LIST
1929     $DEMUXER_LIST
1930     $ENCODER_LIST
1931     $FILTER_LIST
1932     $HWACCEL_LIST
1933     $INDEV_LIST
1934     $MUXER_LIST
1935     $OUTDEV_LIST
1936     $PARSER_LIST
1937     $PROTOCOL_LIST
1938 "
1939
1940 for n in $COMPONENT_LIST; do
1941     v=$(toupper ${n%s})_LIST
1942     eval enable \$$v
1943     eval ${n}_if_any="\$$v"
1944 done
1945
1946 enable $ARCH_EXT_LIST
1947
1948 die_unknown(){
1949     echo "Unknown option \"$1\"."
1950     echo "See $0 --help for available options."
1951     exit 1
1952 }
1953
1954 show_list() {
1955     suffix=_$1
1956     shift
1957     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1958     exit 0
1959 }
1960
1961 rand_list(){
1962     IFS=', '
1963     set -- $*
1964     unset IFS
1965     for thing; do
1966         comp=${thing%:*}
1967         prob=${thing#$comp}
1968         prob=${prob#:}
1969         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
1970         echo "prob ${prob:-0.5}"
1971         printf '%s\n' $comp
1972     done
1973 }
1974
1975 do_random(){
1976     action=$1
1977     shift
1978     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
1979     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
1980 }
1981
1982 for opt do
1983     optval="${opt#*=}"
1984     case "$opt" in
1985         --extra-ldflags=*)
1986             add_ldflags $optval
1987         ;;
1988         --extra-libs=*)
1989             add_extralibs $optval
1990         ;;
1991         --disable-devices)
1992             disable $INDEV_LIST $OUTDEV_LIST
1993         ;;
1994         --enable-debug=*)
1995             debuglevel="$optval"
1996         ;;
1997         --disable-programs)
1998             disable $PROGRAM_LIST
1999         ;;
2000         --disable-everything)
2001             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2002         ;;
2003         --disable-all)
2004             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2005             disable $LIBRARY_LIST $PROGRAM_LIST doc
2006         ;;
2007         --enable-random|--disable-random)
2008             action=${opt%%-random}
2009             do_random ${action#--} $COMPONENT_LIST
2010         ;;
2011         --enable-random=*|--disable-random=*)
2012             action=${opt%%-random=*}
2013             do_random ${action#--} $optval
2014         ;;
2015         --enable-*=*|--disable-*=*)
2016             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2017             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2018             eval list=\$$(toupper $thing)_LIST
2019             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2020             $action $(filter "$name" $list)
2021         ;;
2022         --enable-?*|--disable-?*)
2023             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2024             if is_in $option $COMPONENT_LIST; then
2025                 test $action = disable && action=unset
2026                 eval $action \$$(toupper ${option%s})_LIST
2027             elif is_in $option $CMDLINE_SELECT; then
2028                 $action $option
2029             else
2030                 die_unknown $opt
2031             fi
2032         ;;
2033         --list-*)
2034             NAME="${opt#--list-}"
2035             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2036             NAME=${NAME%s}
2037             eval show_list $NAME \$$(toupper $NAME)_LIST
2038         ;;
2039         --help|-h) show_help
2040         ;;
2041         *)
2042             optname="${opt%%=*}"
2043             optname="${optname#--}"
2044             optname=$(echo "$optname" | sed 's/-/_/g')
2045             if is_in $optname $CMDLINE_SET; then
2046                 eval $optname='$optval'
2047             elif is_in $optname $CMDLINE_APPEND; then
2048                 append $optname "$optval"
2049             else
2050                 die_unknown $opt
2051             fi
2052         ;;
2053     esac
2054 done
2055
2056 disabled logging && logfile=/dev/null
2057
2058 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2059 set >> $logfile
2060
2061 test -n "$cross_prefix" && enable cross_compile
2062
2063 if enabled cross_compile; then
2064     test -n "$arch" && test -n "$target_os" ||
2065         die "Must specify target arch and OS when cross-compiling"
2066 fi
2067
2068 ar_default="${cross_prefix}${ar_default}"
2069 cc_default="${cross_prefix}${cc_default}"
2070 nm_default="${cross_prefix}${nm_default}"
2071 pkg_config_default="${cross_prefix}${pkg_config_default}"
2072 ranlib="${cross_prefix}${ranlib}"
2073
2074 sysinclude_default="${sysroot}/usr/include"
2075
2076 case "$toolchain" in
2077     clang-asan)
2078         cc_default="clang"
2079         add_cflags  -faddress-sanitizer
2080         add_ldflags -faddress-sanitizer
2081     ;;
2082     clang-tsan)
2083         cc_default="clang"
2084         add_cflags  -fthread-sanitizer
2085         add_ldflags -fthread-sanitizer
2086     ;;
2087     msvc)
2088         cc_default="c99wrap cl"
2089         ld_default="c99wrap link"
2090         nm_default="dumpbin -symbols"
2091         ar_default="lib"
2092         target_os_default="win32"
2093     ;;
2094     ?*)
2095         die "Unknown toolchain $toolchain"
2096     ;;
2097 esac
2098
2099 set_default arch cc pkg_config sysinclude target_os
2100 enabled cross_compile || host_cc_default=$cc
2101 set_default host_cc
2102
2103 if ! $pkg_config --version >/dev/null 2>&1; then
2104     warn "$pkg_config not found, library detection may fail."
2105     pkg_config=false
2106 fi
2107
2108 exesuf() {
2109     case $1 in
2110         mingw32*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2111     esac
2112 }
2113
2114 EXESUF=$(exesuf $target_os)
2115 HOSTEXESUF=$(exesuf $host_os)
2116
2117 # set temporary file name
2118 : ${TMPDIR:=$TEMPDIR}
2119 : ${TMPDIR:=$TMP}
2120 : ${TMPDIR:=/tmp}
2121
2122 if ! check_cmd mktemp -u XXXXXX; then
2123     # simple replacement for missing mktemp
2124     # NOT SAFE FOR GENERAL USE
2125     mktemp(){
2126         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2127     }
2128 fi
2129
2130 tmpfile(){
2131     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2132         (set -C; exec > $tmp) 2>/dev/null ||
2133         die "Unable to create temporary file in $TMPDIR."
2134     append TMPFILES $tmp
2135     eval $1=$tmp
2136 }
2137
2138 trap 'rm -f -- $TMPFILES' EXIT
2139
2140 tmpfile TMPASM .asm
2141 tmpfile TMPC   .c
2142 tmpfile TMPE   $EXESUF
2143 tmpfile TMPH   .h
2144 tmpfile TMPO   .o
2145 tmpfile TMPS   .S
2146 tmpfile TMPSH  .sh
2147 tmpfile TMPV   .ver
2148
2149 unset -f mktemp
2150
2151 chmod +x $TMPE
2152
2153 # make sure we can execute files in $TMPDIR
2154 cat > $TMPSH 2>> $logfile <<EOF
2155 #! /bin/sh
2156 EOF
2157 chmod +x $TMPSH >> $logfile 2>&1
2158 if ! $TMPSH >> $logfile 2>&1; then
2159     cat <<EOF
2160 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2161 variable to another directory and make sure that it is not mounted noexec.
2162 EOF
2163     die "Sanity test failed."
2164 fi
2165
2166 ccc_flags(){
2167     for flag; do
2168         case $flag in
2169             -std=c99)           echo -c99                       ;;
2170             -mcpu=*)            echo -arch ${flag#*=}           ;;
2171             -mieee)             echo -ieee                      ;;
2172             -O*|-fast)          echo $flag                      ;;
2173             -fno-math-errno)    echo -assume nomath_errno       ;;
2174             -g)                 echo -g3                        ;;
2175             -Wall)              echo -msg_enable level2         ;;
2176             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
2177             -Wl,*)              echo $flag                      ;;
2178             -f*|-W*)                                            ;;
2179             *)                  echo $flag                      ;;
2180         esac
2181    done
2182 }
2183
2184 msvc_flags(){
2185     for flag; do
2186         case $flag in
2187             -fomit-frame-pointer) echo -Oy ;;
2188             -g)                   echo -Z7 ;;
2189             -Wall)                echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
2190                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
2191                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
2192                                        -wd4996 -wd4273 ;;
2193             -std=c99)             ;;
2194             -fno-math-errno)      ;;
2195             -fno-common)          ;;
2196             -fno-signed-zeros)    ;;
2197             -fPIC)                ;;
2198             -lz)                  echo zlib.lib ;;
2199             -lavifil32)           echo vfw32.lib ;;
2200             -lavicap32)           echo vfw32.lib user32.lib ;;
2201             -l*)                  echo ${flag#-l}.lib ;;
2202             *)                    echo $flag ;;
2203         esac
2204     done
2205 }
2206
2207 pgi_flags(){
2208     for flag; do
2209         case $flag in
2210             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
2211             -fomit-frame-pointer) echo -Mnoframe ;;
2212             -g)                   echo -gopt ;;
2213             *)                    echo $flag ;;
2214         esac
2215     done
2216 }
2217
2218 suncc_flags(){
2219     for flag; do
2220         case $flag in
2221             -march=*|-mcpu=*)
2222                 case "${flag#*=}" in
2223                     native)                   echo -xtarget=native       ;;
2224                     v9|niagara)               echo -xarch=sparc          ;;
2225                     ultrasparc)               echo -xarch=sparcvis       ;;
2226                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2227                     i586|pentium)             echo -xchip=pentium        ;;
2228                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2229                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2230                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2231                     pentium4*)          echo -xtarget=pentium4           ;;
2232                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2233                     *-sse3)             echo -xarch=sse3                 ;;
2234                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2235                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
2236                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
2237                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
2238                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2239                     k8|opteron|athlon64|athlon-fx)
2240                                               echo -xarch=sse2a          ;;
2241                     athlon*)                  echo -xarch=pentium_proa   ;;
2242                 esac
2243                 ;;
2244             -std=c99)             echo -xc99              ;;
2245             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2246             -fPIC)                echo -KPIC -xcode=pic32 ;;
2247             -W*,*)                echo $flag              ;;
2248             -f*-*|-W*|-mimpure-text)                      ;;
2249             -shared)              echo -G                 ;;
2250             *)                    echo $flag              ;;
2251         esac
2252     done
2253 }
2254
2255 tms470_flags(){
2256     for flag; do
2257         case $flag in
2258             -march=*|-mcpu=*)
2259                 case "${flag#*=}" in
2260                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2261                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2262                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2263                     armv6*|arm11*)          echo -mv=6   ;;
2264                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2265                                             echo -mv=5e  ;;
2266                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2267                 esac
2268                 ;;
2269             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2270             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2271             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2272             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
2273             -msoft-float)   echo --float_support=vfplib       ;;
2274             -O[0-3]|-mf=*)  echo $flag                        ;;
2275             -g)             echo -g -mn                       ;;
2276             -pds=*)         echo $flag                        ;;
2277             -D*|-I*)        echo $flag                        ;;
2278             --gcc|--abi=*)  echo $flag                        ;;
2279             -me)            echo $flag                        ;;
2280         esac
2281     done
2282 }
2283
2284 probe_cc(){
2285     pfx=$1
2286     _cc=$2
2287
2288     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
2289     unset _ld_o _ldflags _ld_lib _ld_path
2290     unset _depflags _DEPCMD _DEPFLAGS
2291     _flags_filter=echo
2292
2293     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2294         _type=llvm_gcc
2295         gcc_extra_ver=$(expr "$($_cc --version | head -n1)" : '.*\((.*)\)')
2296         _ident="llvm-gcc $($_cc -dumpversion) $gcc_extra_ver"
2297         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2298         _cflags_speed='-O3'
2299         _cflags_size='-Os'
2300     elif $_cc -v 2>&1 | grep -qi ^gcc; then
2301         _type=gcc
2302         gcc_version=$($_cc --version | head -n1)
2303         gcc_basever=$($_cc -dumpversion)
2304         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2305         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2306         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2307         if ! $_cc -dumpversion | grep -q '^2\.'; then
2308             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2309         fi
2310         _cflags_speed='-O3'
2311         _cflags_size='-Os'
2312     elif $_cc --version 2>/dev/null | grep -q Intel; then
2313         _type=icc
2314         _ident=$($_cc --version | head -n1)
2315         _depflags='-MMD'
2316         _cflags_speed='-O3'
2317         _cflags_size='-Os'
2318         _cflags_noopt='-O1'
2319     elif $_cc -v 2>&1 | grep -q xlc; then
2320         _type=xlc
2321         _ident=$($_cc -qversion 2>/dev/null | head -n1)
2322         _cflags_speed='-O5'
2323         _cflags_size='-O5 -qcompact'
2324     elif $_cc -V 2>/dev/null | grep -q Compaq; then
2325         _type=ccc
2326         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
2327         _DEPFLAGS='-M'
2328         _cflags_speed='-fast'
2329         _cflags_size='-O1'
2330         _flags_filter=ccc_flags
2331     elif $_cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2332         test -d "$sysroot" || die "No valid sysroot specified."
2333         _type=armcc
2334         _ident=$($_cc --vsn | head -n1)
2335         armcc_conf="$PWD/armcc.conf"
2336         $_cc --arm_linux_configure                 \
2337              --arm_linux_config_file="$armcc_conf" \
2338              --configure_sysroot="$sysroot"        \
2339              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2340              die "Error creating armcc configuration file."
2341         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2342         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
2343         as_default="${cross_prefix}gcc"
2344         _depflags='-MMD'
2345         _cflags_speed='-O3'
2346         _cflags_size='-Os'
2347     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
2348         _type=tms470
2349         _ident=$($_cc -version | head -n1 | tr -s ' ')
2350         _flags='--gcc --abi=eabi -me'
2351         _cc_e='-ppl -fe=$@'
2352         _cc_o='-fe=$@'
2353         _depflags='-ppa -ppd=$(@:.o=.d)'
2354         _cflags_speed='-O3 -mf=5'
2355         _cflags_size='-O3 -mf=2'
2356         _flags_filter=tms470_flags
2357     elif $_cc -v 2>&1 | grep -q clang; then
2358         _type=clang
2359         _ident=$($_cc --version | head -n1)
2360         _depflags='-MMD'
2361         _cflags_speed='-O3'
2362         _cflags_size='-Os'
2363     elif $_cc -V 2>&1 | grep -q Sun; then
2364         _type=suncc
2365         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2366         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2367         _DEPFLAGS='-xM1 -xc99'
2368         _ldflags='-std=c99'
2369         _cflags_speed='-O5'
2370         _cflags_size='-O5 -xspace'
2371         _flags_filter=suncc_flags
2372     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2373         _type=pathscale
2374         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2375         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2376         _cflags_speed='-O2'
2377         _cflags_size='-Os'
2378         _flags_filter='filter_out -Wdisabled-optimization'
2379     elif $_cc -v 2>&1 | grep -q Open64; then
2380         _type=open64
2381         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
2382         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
2383         _cflags_speed='-O2'
2384         _cflags_size='-Os'
2385         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2386     elif $_cc -V 2>&1 | grep -q Portland; then
2387         _type=pgi
2388         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2389         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
2390         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2391         _cflags_size="-O2 -Munroll=c:1 $opt_common"
2392         _cflags_noopt="-O1"
2393         _flags_filter=pgi_flags
2394     elif $_cc 2>&1 | grep -q Microsoft; then
2395         _type=msvc
2396         _ident=$($cc 2>&1 | head -n1)
2397         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
2398         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
2399         _cflags_speed="-O2"
2400         _cflags_size="-O1"
2401         # Nonstandard output options, to avoid msys path conversion issues, relies on wrapper to remap it
2402         if $_cc 2>&1 | grep -q Linker; then
2403             _ld_o='-out $@'
2404         else
2405             _ld_o='-Fe$@'
2406         fi
2407         _cc_o='-Fo $@'
2408         _cc_e='-P -Fi $@'
2409         _flags_filter=msvc_flags
2410         _ld_lib='lib%.a'
2411         _ld_path='-libpath:'
2412         _flags='-nologo'
2413         _cflags='-D_USE_MATH_DEFINES -Dinline=__inline -FIstdlib.h -Dstrtoll=_strtoi64'
2414         if [ $pfx = hostcc ]; then
2415             append _cflags -Dsnprintf=_snprintf
2416         fi
2417     fi
2418
2419     eval ${pfx}_type=\$_type
2420     eval ${pfx}_ident=\$_ident
2421 }
2422
2423 set_ccvars(){
2424     eval ${1}_C=\${_cc_c-\${${1}_C}}
2425     eval ${1}_E=\${_cc_e-\${${1}_E}}
2426     eval ${1}_O=\${_cc_o-\${${1}_O}}
2427
2428     if [ -n "$_depflags" ]; then
2429         eval ${1}_DEPFLAGS=\$_depflags
2430     else
2431         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
2432         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
2433         eval DEP${1}FLAGS=\$_flags
2434     fi
2435 }
2436
2437 probe_cc cc "$cc"
2438 cflags_filter=$_flags_filter
2439 cflags_speed=$_cflags_speed
2440 cflags_size=$_cflags_size
2441 cflags_noopt=$_cflags_noopt
2442 add_cflags $_flags $_cflags
2443 cc_ldflags=$_ldflags
2444 set_ccvars CC
2445
2446 probe_cc hostcc "$host_cc"
2447 host_cflags_filter=$_flags_filter
2448 add_host_cflags  $_flags $_cflags
2449 set_ccvars HOSTCC
2450
2451 test -n "$cc_type" && enable $cc_type ||
2452     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2453
2454 : ${as_default:=$cc}
2455 : ${dep_cc_default:=$cc}
2456 : ${ld_default:=$cc}
2457 : ${host_ld_default:=$host_cc}
2458 set_default ar as dep_cc ld host_ld
2459
2460 probe_cc as "$as"
2461 asflags_filter=$_flags_filter
2462 add_asflags $_flags $_cflags
2463 set_ccvars AS
2464
2465 probe_cc ld "$ld"
2466 ldflags_filter=$_flags_filter
2467 add_ldflags $_flags $_ldflags
2468 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
2469 LD_O=${_ld_o-$LD_O}
2470 LD_LIB=${_ld_lib-$LD_LIB}
2471 LD_PATH=${_ld_path-$LD_PATH}
2472
2473 probe_cc hostld "$host_ld"
2474 host_ldflags_filter=$_flags_filter
2475 add_host_ldflags $_flags $_ldflags
2476 HOSTLD_O=${_ld_o-$HOSTLD_O}
2477
2478 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
2479     probe_cc depcc "$dep_cc"
2480     CCDEP=${_DEPCMD:-$DEPCMD}
2481     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
2482     DEPCCFLAGS=$_flags
2483 fi
2484
2485 if $ar 2>&1 | grep -q Microsoft; then
2486     arflags="-nologo"
2487     ar_o='-out:$@'
2488 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
2489     arflags="rq"
2490     ar_o='$@'
2491 else
2492     arflags="rc"
2493     ar_o='$@'
2494 fi
2495
2496 add_cflags $extra_cflags
2497 add_asflags $extra_cflags
2498
2499 if test -n "$sysroot"; then
2500     case "$cc_type" in
2501         gcc|llvm_gcc|clang)
2502             add_cppflags --sysroot="$sysroot"
2503             add_ldflags --sysroot="$sysroot"
2504         ;;
2505         tms470)
2506             add_cppflags -I"$sysinclude"
2507             add_ldflags  --sysroot="$sysroot"
2508         ;;
2509     esac
2510 fi
2511
2512 if test "$cpu" = host; then
2513     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2514
2515     case "$cc_type" in
2516         gcc|llvm_gcc)
2517             check_native(){
2518                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2519                 sed -n "/cc1.*$1=/{
2520                             s/.*$1=\\([^ ]*\\).*/\\1/
2521                             p
2522                             q
2523                         }" $TMPE
2524             }
2525             cpu=$(check_native -march || check_native -mcpu)
2526         ;;
2527     esac
2528
2529     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2530 fi
2531
2532 # Deal with common $arch aliases
2533 case "$arch" in
2534     aarch64|arm64)
2535         arch="aarch64"
2536     ;;
2537     arm*)
2538         arch="arm"
2539     ;;
2540     mips*|IP*)
2541         arch="mips"
2542     ;;
2543     parisc*|hppa*)
2544         arch="parisc"
2545     ;;
2546     "Power Macintosh"|ppc*|powerpc*)
2547         arch="ppc"
2548     ;;
2549     s390|s390x)
2550         arch="s390"
2551     ;;
2552     sh4|sh)
2553         arch="sh4"
2554     ;;
2555     sun4u|sparc*)
2556         arch="sparc"
2557     ;;
2558     tilegx|tile-gx)
2559         arch="tilegx"
2560     ;;
2561     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2562         arch="x86"
2563     ;;
2564 esac
2565
2566 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2567 enable $arch
2568
2569 # Add processor-specific flags
2570 if enabled aarch64; then
2571
2572     case $cpu in
2573         armv*)
2574             cpuflags="-march=$cpu"
2575         ;;
2576         *)
2577             cpuflags="-mcpu=$cpu"
2578         ;;
2579     esac
2580
2581 elif enabled alpha; then
2582
2583     cpuflags="-mcpu=$cpu"
2584
2585 elif enabled arm; then
2586
2587     check_arm_arch() {
2588         check_cpp_condition stddef.h \
2589             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
2590             $cpuflags
2591     }
2592
2593     probe_arm_arch() {
2594         if   check_arm_arch 4;        then echo armv4;
2595         elif check_arm_arch 4T;       then echo armv4t;
2596         elif check_arm_arch 5;        then echo armv5;
2597         elif check_arm_arch 5E;       then echo armv5e;
2598         elif check_arm_arch 5T;       then echo armv5t;
2599         elif check_arm_arch 5TE;      then echo armv5te;
2600         elif check_arm_arch 5TEJ;     then echo armv5te;
2601         elif check_arm_arch 6;        then echo armv6;
2602         elif check_arm_arch 6J;       then echo armv6j;
2603         elif check_arm_arch 6K;       then echo armv6k;
2604         elif check_arm_arch 6Z;       then echo armv6z;
2605         elif check_arm_arch 6ZK;      then echo armv6zk;
2606         elif check_arm_arch 6T2;      then echo armv6t2;
2607         elif check_arm_arch 7;        then echo armv7;
2608         elif check_arm_arch 7A  7_A;  then echo armv7-a;
2609         elif check_arm_arch 7R  7_R;  then echo armv7-r;
2610         elif check_arm_arch 7M  7_M;  then echo armv7-m;
2611         elif check_arm_arch 7EM 7E_M; then echo armv7-m;
2612         elif check_arm_arch 8A  8_A;  then echo armv8-a;
2613         fi
2614     }
2615
2616     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
2617
2618     case $cpu in
2619         armv*)
2620             cpuflags="-march=$cpu"
2621             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2622         ;;
2623         *)
2624             cpuflags="-mcpu=$cpu"
2625             case $cpu in
2626                 cortex-a*)                               subarch=armv7a  ;;
2627                 cortex-r*)                               subarch=armv7r  ;;
2628                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2629                 arm11*)                                  subarch=armv6   ;;
2630                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2631                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2632                 *)                             subarch=$(probe_arm_arch) ;;
2633             esac
2634         ;;
2635     esac
2636
2637     case "$subarch" in
2638         armv5t*)    enable fast_clz                ;;
2639         armv[6-8]*) enable fast_clz fast_unaligned ;;
2640     esac
2641
2642 elif enabled avr32; then
2643
2644     case $cpu in
2645         ap7[02]0[0-2])
2646             subarch="avr32_ap"
2647             cpuflags="-mpart=$cpu"
2648         ;;
2649         ap)
2650             subarch="avr32_ap"
2651             cpuflags="-march=$cpu"
2652         ;;
2653         uc3[ab]*)
2654             subarch="avr32_uc"
2655             cpuflags="-mcpu=$cpu"
2656         ;;
2657         uc)
2658             subarch="avr32_uc"
2659             cpuflags="-march=$cpu"
2660         ;;
2661     esac
2662
2663 elif enabled bfin; then
2664
2665     cpuflags="-mcpu=$cpu"
2666
2667 elif enabled mips; then
2668
2669     cpuflags="-march=$cpu"
2670
2671 elif enabled ppc; then
2672
2673     case $(tolower $cpu) in
2674         601|ppc601|powerpc601)
2675             cpuflags="-mcpu=601"
2676             disable altivec
2677         ;;
2678         603*|ppc603*|powerpc603*)
2679             cpuflags="-mcpu=603"
2680             disable altivec
2681         ;;
2682         604*|ppc604*|powerpc604*)
2683             cpuflags="-mcpu=604"
2684             disable altivec
2685         ;;
2686         g3|75*|ppc75*|powerpc75*)
2687             cpuflags="-mcpu=750"
2688             disable altivec
2689         ;;
2690         g4|745*|ppc745*|powerpc745*)
2691             cpuflags="-mcpu=7450"
2692         ;;
2693         74*|ppc74*|powerpc74*)
2694             cpuflags="-mcpu=7400"
2695         ;;
2696         g5|970|ppc970|powerpc970)
2697             cpuflags="-mcpu=970"
2698         ;;
2699         power[3-7]*)
2700             cpuflags="-mcpu=$cpu"
2701         ;;
2702         cell)
2703             cpuflags="-mcpu=cell"
2704             enable ldbrx
2705         ;;
2706         e500mc)
2707             cpuflags="-mcpu=e500mc"
2708             disable altivec
2709         ;;
2710         e500v2)
2711             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2712             disable altivec
2713         ;;
2714         e500)
2715             cpuflags="-mcpu=8540 -mhard-float"
2716             disable altivec
2717         ;;
2718     esac
2719
2720 elif enabled sparc; then
2721
2722     case $cpu in
2723         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
2724             cpuflags="-mcpu=$cpu"
2725             disable vis
2726         ;;
2727         ultrasparc*|niagara[234])
2728             cpuflags="-mcpu=$cpu"
2729         ;;
2730     esac
2731
2732 elif enabled x86; then
2733
2734     case $cpu in
2735         i[345]86|pentium)
2736             cpuflags="-march=$cpu"
2737             disable mmx
2738         ;;
2739         # targets that do NOT support conditional mov (cmov)
2740         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2741             cpuflags="-march=$cpu"
2742             disable cmov
2743         ;;
2744         # targets that do support conditional mov (cmov)
2745         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
2746             cpuflags="-march=$cpu"
2747             enable cmov
2748             enable fast_cmov
2749         ;;
2750         # targets that do support conditional mov but on which it's slow
2751         pentium4|pentium4m|prescott|nocona)
2752             cpuflags="-march=$cpu"
2753             enable cmov
2754             disable fast_cmov
2755         ;;
2756     esac
2757
2758 fi
2759
2760 if [ "$cpu" != generic ]; then
2761     add_cflags  $cpuflags
2762     add_asflags $cpuflags
2763 fi
2764
2765 # compiler sanity check
2766 check_exec <<EOF
2767 int main(void){ return 0; }
2768 EOF
2769 if test "$?" != 0; then
2770     echo "$cc is unable to create an executable file."
2771     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2772         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2773         echo "Only do this if you know what cross compiling means."
2774     fi
2775     die "C compiler test failed."
2776 fi
2777
2778 add_cppflags -D_ISOC99_SOURCE
2779 check_cflags -std=c99
2780 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2781 #include <stdlib.h>
2782 EOF
2783 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2784 #include <stdlib.h>
2785 EOF
2786
2787 check_host_cflags -std=c99
2788 check_host_cflags -Wall
2789
2790 check_64bit(){
2791     arch32=$1
2792     arch64=$2
2793     expr=$3
2794     check_code cc "" "int test[2*($expr) - 1]" &&
2795         subarch=$arch64 || subarch=$arch32
2796 }
2797
2798 case "$arch" in
2799     aarch64|alpha|ia64)
2800         spic=$shared
2801     ;;
2802     mips)
2803         check_64bit mips mips64 '_MIPS_SIM > 1'
2804         spic=$shared
2805     ;;
2806     parisc)
2807         check_64bit parisc parisc64 'sizeof(void *) > 4'
2808         spic=$shared
2809     ;;
2810     ppc)
2811         check_64bit ppc ppc64 'sizeof(void *) > 4'
2812         spic=$shared
2813     ;;
2814     sparc)
2815         check_64bit sparc sparc64 'sizeof(void *) > 4'
2816         spic=$shared
2817     ;;
2818     x86)
2819         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
2820         if test "$subarch" = "x86_64"; then
2821             spic=$shared
2822         fi
2823     ;;
2824 esac
2825
2826 enable $subarch
2827 enabled spic && enable pic
2828
2829 # OS specific
2830 case $target_os in
2831     haiku)
2832         prefix_default="/boot/common"
2833         network_extralibs="-lnetwork"
2834         host_libs=
2835         ;;
2836     sunos)
2837         AVSERVERLDFLAGS=""
2838         SHFLAGS='-shared -Wl,-h,$$(@F)'
2839         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2840         network_extralibs="-lsocket -lnsl"
2841         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2842         # When using suncc to build, the Solaris linker will mark
2843         # an executable with each instruction set encountered by
2844         # the Solaris assembler.  As our libraries contain their own
2845         # guards for processor-specific code, instead suppress
2846         # generation of the HWCAPS ELF section on Solaris x86 only.
2847         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2848         nm_default='nm -P -g'
2849         ;;
2850     netbsd)
2851         disable symver
2852         oss_indev_extralibs="-lossaudio"
2853         oss_outdev_extralibs="-lossaudio"
2854         ;;
2855     openbsd|bitrig)
2856         disable symver
2857         SHFLAGS='-shared'
2858         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2859         SLIB_INSTALL_LINKS=
2860         oss_indev_extralibs="-lossaudio"
2861         oss_outdev_extralibs="-lossaudio"
2862         ;;
2863     dragonfly)
2864         disable symver
2865         ;;
2866     freebsd)
2867         ;;
2868     bsd/os)
2869         add_extralibs -lpoll -lgnugetopt
2870         ;;
2871     darwin)
2872         gas="gas-preprocessor.pl $cc"
2873         enabled ppc && add_asflags -force_cpusubtype_ALL
2874         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2875         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2876         add_ldflags -Wl,-dynamic,-search_paths_first
2877         SLIBSUF=".dylib"
2878         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2879         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2880         AVSERVERLDFLAGS=-Wl,-bind_at_load
2881         objformat="macho"
2882         enabled x86_64 && objformat="macho64"
2883         enabled_any pic shared ||
2884             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2885         ;;
2886     mingw32*)
2887         if test $target_os = "mingw32ce"; then
2888             disable network
2889         else
2890             target_os=mingw32
2891         fi
2892         LIBTARGET=i386
2893         if enabled x86_64; then
2894             LIBTARGET="i386:x86-64"
2895         elif enabled arm; then
2896             LIBTARGET=arm-wince
2897         fi
2898         shlibdir_default="$bindir_default"
2899         SLIBPREF=""
2900         SLIBSUF=".dll"
2901         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2902         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2903         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2904         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2905         SLIB_INSTALL_LINKS=
2906         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2907         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2908         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2909         objformat="win32"
2910         dlltool="${cross_prefix}dlltool"
2911         ranlib=:
2912         enable dos_paths
2913         add_cppflags -U__STRICT_ANSI__
2914         ;;
2915     win32|win64)
2916         if enabled shared; then
2917             # Link to the import library instead of the normal static library
2918             # for shared libs.
2919             LD_LIB='%.lib'
2920             # Cannot build shared and static libraries at the same time with
2921             # MSVC.
2922             disable static
2923         fi
2924         shlibdir_default="$bindir_default"
2925         SLIBPREF=""
2926         SLIBSUF=".dll"
2927         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2928         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2929         SLIB_CREATE_DEF_CMD='makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
2930         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2931         SLIB_INSTALL_LINKS=
2932         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2933         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2934         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2935         objformat="win32"
2936         ranlib=:
2937         enable dos_paths
2938         ;;
2939     cygwin*)
2940         target_os=cygwin
2941         shlibdir_default="$bindir_default"
2942         SLIBPREF="cyg"
2943         SLIBSUF=".dll"
2944         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2945         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2946         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2947         SLIB_INSTALL_LINKS=
2948         SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
2949         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
2950         objformat="win32"
2951         enable dos_paths
2952         ;;
2953     *-dos|freedos|opendos)
2954         network_extralibs="-lsocket"
2955         objformat="coff"
2956         enable dos_paths
2957         add_cppflags -U__STRICT_ANSI__
2958         ;;
2959     linux)
2960         enable dv1394
2961         ;;
2962     irix*)
2963         target_os=irix
2964         ranlib="echo ignoring ranlib"
2965         ;;
2966     os/2*)
2967         ln_s="cp -f"
2968         objformat="aout"
2969         add_cppflags -D_GNU_SOURCE
2970         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2971         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2972         AVSERVERLDFLAGS=""
2973         LIBSUF="_s.a"
2974         SLIBPREF=""
2975         SLIBSUF=".dll"
2976         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2977         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2978         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2979             echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2980             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2981             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2982             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2983             emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2984         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2985             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2986         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2987         enable dos_paths
2988         ;;
2989     gnu/kfreebsd)
2990         add_cppflags -D_BSD_SOURCE
2991         ;;
2992     gnu)
2993         ;;
2994     qnx)
2995         add_cppflags -D_QNX_SOURCE
2996         network_extralibs="-lsocket"
2997         ;;
2998     symbian)
2999         SLIBSUF=".dll"
3000         enable dos_paths
3001         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
3002         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
3003         add_ldflags -Wl,--target1-abs,--no-undefined \
3004                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
3005                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
3006         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
3007                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
3008                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
3009         ;;
3010     osf1)
3011         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
3012         AVSERVERLDFLAGS=
3013         ;;
3014     minix)
3015         ;;
3016     plan9)
3017         add_cppflags -D_C99_SNPRINTF_EXTENSION  \
3018                      -D_REENTRANT_SOURCE        \
3019                      -D_RESEARCH_SOURCE         \
3020                      -DFD_SETSIZE=96            \
3021                      -DHAVE_SOCK_OPTS
3022         add_compat strtod.o strtod=avpriv_strtod
3023         network_extralibs='-lbsd'
3024         exeobjs=compat/plan9/main.o
3025         disable avserver
3026         ln_s='ln -s -f'
3027         cp_f='cp'
3028         ;;
3029     none)
3030         ;;
3031     *)
3032         die "Unknown OS '$target_os'."
3033         ;;
3034 esac
3035
3036 # determine libc flavour
3037
3038 # uclibc defines __GLIBC__, so it needs to be checked before glibc.
3039 if check_cpp_condition features.h "defined __UCLIBC__"; then
3040     libc_type=uclibc
3041     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3042 elif check_cpp_condition features.h "defined __GLIBC__"; then
3043     libc_type=glibc
3044     add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
3045 # MinGW headers can be installed on Cygwin, so check for newlib first.
3046 elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
3047     libc_type=newlib
3048     add_cppflags -U__STRICT_ANSI__
3049 elif check_header _mingw.h; then
3050     libc_type=mingw
3051     check_cpp_condition _mingw.h \
3052         "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) || \
3053             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
3054         die "ERROR: MinGW runtime version must be >= 3.15."
3055 elif check_func_headers stdlib.h _get_doserrno; then
3056     libc_type=msvcrt
3057     add_compat strtod.o strtod=avpriv_strtod
3058     add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
3059                                  _snprintf=avpriv_snprintf  \
3060                                  vsnprintf=avpriv_vsnprintf
3061 elif check_cpp_condition stddef.h "defined __KLIBC__"; then
3062     libc_type=klibc
3063 fi
3064
3065 test -n "$libc_type" && enable $libc_type
3066
3067 # hacks for compiler/libc/os combinations
3068
3069 if enabled_all tms470 glibc; then
3070     CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
3071     add_cppflags -D__USER_LABEL_PREFIX__=
3072     add_cppflags -D__builtin_memset=memset
3073     add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
3074     add_cflags   -pds=48    # incompatible redefinition of macro
3075 fi
3076
3077 if enabled_all ccc glibc; then
3078     add_ldflags -Wl,-z,now  # calls to libots crash without this
3079 fi
3080
3081 esc(){
3082     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
3083 }
3084
3085 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" >config.fate
3086
3087 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
3088
3089 set_default $PATHS_LIST
3090 set_default nm
3091
3092 # we need to build at least one lib type
3093 if ! enabled_any static shared; then
3094     cat <<EOF
3095 At least one library type must be built.
3096 Specify --enable-static to build the static libraries or --enable-shared to
3097 build the shared libraries as well. To only build the shared libraries specify
3098 --disable-static in addition to --enable-shared.
3099 EOF
3100     exit 1;
3101 fi
3102
3103 die_license_disabled() {
3104     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
3105 }
3106
3107 die_license_disabled gpl libcdio
3108 die_license_disabled gpl libx264
3109 die_license_disabled gpl libxavs
3110 die_license_disabled gpl libxvid
3111 die_license_disabled gpl x11grab
3112
3113 die_license_disabled nonfree libfaac
3114 die_license_disabled nonfree libfdk_aac
3115 die_license_disabled nonfree openssl
3116
3117 die_license_disabled version3 libopencore_amrnb
3118 die_license_disabled version3 libopencore_amrwb
3119 die_license_disabled version3 libvo_aacenc
3120 die_license_disabled version3 libvo_amrwbenc
3121
3122 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3123
3124 disabled optimizations || check_cflags -fomit-frame-pointer
3125
3126 enable_pic() {
3127     enable pic
3128     add_cppflags -DPIC
3129     add_cflags   -fPIC
3130     add_asflags  -fPIC
3131 }
3132
3133 enabled pic && enable_pic
3134
3135 check_cc <<EOF || die "Symbol mangling check failed."
3136 int ff_extern;
3137 EOF
3138 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
3139 extern_prefix=${sym%%ff_extern*}
3140
3141 check_cc <<EOF && enable_weak inline_asm
3142 void foo(void) { __asm__ volatile ("" ::); }
3143 EOF
3144
3145 _restrict=
3146 for restrict_keyword in restrict __restrict__ __restrict; do
3147     check_cc <<EOF && _restrict=$restrict_keyword && break
3148 void foo(char * $restrict_keyword p);
3149 EOF
3150 done
3151
3152 check_cc <<EOF && enable attribute_packed
3153 struct { int x; } __attribute__((packed)) x;
3154 EOF
3155
3156 check_cc <<EOF && enable attribute_may_alias
3157 union { int x; } __attribute__((may_alias)) x;
3158 EOF
3159
3160 check_cc <<EOF || die "endian test failed"
3161 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
3162 EOF
3163 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
3164
3165 if enabled alpha; then
3166
3167     check_cflags -mieee
3168
3169 elif enabled arm; then
3170
3171     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
3172     enabled thumb && check_cflags -mthumb || check_cflags -marm
3173     nogas=die
3174
3175     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3176         enable vfp_args
3177     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3178         case "${cross_prefix:-$cc}" in
3179             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3180             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3181 __asm__ (".eabi_attribute 28, 1");
3182 int main(void) { return 0; }
3183 EOF
3184         esac
3185         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3186     fi
3187
3188     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
3189     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
3190     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
3191     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
3192     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
3193     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
3194
3195     [ $target_os = linux ] ||
3196         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
3197             $ARCH_EXT_LIST_ARM
3198
3199     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
3200     check_inline_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3201
3202     enabled_all armv6t2 shared !pic && enable_pic
3203
3204 elif enabled mips; then
3205
3206     check_inline_asm loongson '"dmult.g $1, $2, $3"'
3207
3208 elif enabled parisc; then
3209
3210     if enabled gcc; then
3211         case $($cc -dumpversion) in
3212             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
3213         esac
3214     fi
3215
3216 elif enabled ppc; then
3217
3218     enable local_aligned_8 local_aligned_16
3219
3220     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3221     check_inline_asm ibm_asm   '"add 0, 0, 0"'
3222     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
3223     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3224
3225     # AltiVec flags: The FSF version of GCC differs from the Apple version
3226     if enabled altivec; then
3227         nogas=warn
3228         check_cflags -maltivec -mabi=altivec &&
3229         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3230         check_cflags -faltivec
3231
3232         # check if our compiler supports Motorola AltiVec C API
3233         check_cc <<EOF || disable altivec
3234 $inc_altivec_h
3235 int main(void) {
3236     vector signed int v1 = (vector signed int) { 0 };
3237     vector signed int v2 = (vector signed int) { 1 };
3238     v1 = vec_add(v1, v2);
3239     return 0;
3240 }
3241 EOF
3242
3243         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
3244     fi
3245
3246 elif enabled sparc; then
3247
3248     enabled vis && check_inline_asm vis '"pdist %f0, %f0, %f0"'
3249
3250 elif enabled x86; then
3251
3252     check_code ld intrin.h "__rdtsc()" && enable rdtsc
3253
3254     check_code ld mmintrin.h "_mm_empty()" && enable mm_empty
3255
3256     enable local_aligned_8 local_aligned_16
3257
3258     # check whether EBP is available on x86
3259     # As 'i' is stored on the stack, this program will crash
3260     # if the base pointer is used to access it because the
3261     # base pointer is cleared in the inline assembly code.
3262     check_exec_crash <<EOF && enable ebp_available
3263 volatile int i=0;
3264 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
3265 return i;
3266 EOF
3267
3268     # check whether EBX is available on x86
3269     check_inline_asm ebx_available '""::"b"(0)' &&
3270         check_inline_asm ebx_available '"":::"%ebx"'
3271
3272     # check whether xmm clobbers are supported
3273     check_inline_asm xmm_clobbers '"":::"%xmm0"'
3274
3275     # check whether binutils is new enough to compile SSSE3/MMXEXT
3276     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
3277     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
3278
3279     if ! disabled_any asm mmx yasm; then
3280         if check_cmd $yasmexe --version; then
3281             enabled x86_64 && yasm_extra="-m amd64"
3282             yasm_debug="-g dwarf2"
3283         elif check_cmd nasm -v; then
3284             yasmexe=nasm
3285             yasm_debug="-g -F dwarf"
3286             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3287         fi
3288
3289         YASMFLAGS="-f $objformat $yasm_extra"
3290         enabled pic               && append YASMFLAGS "-DPIC"
3291         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3292         case "$objformat" in
3293             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3294         esac
3295
3296         check_yasm "vextractf128 xmm0, ymm0, 0" && enable yasm ||
3297             die "yasm not found, use --disable-yasm for a crippled build"
3298         check_yasm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
3299         check_yasm "CPU amdnop" && enable cpunop
3300     fi
3301
3302     case "$cpu" in
3303         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3304             disable fast_clz
3305         ;;
3306     esac
3307
3308 fi
3309
3310 if enabled asm; then
3311     as=${gas:=$as}
3312     check_as <<EOF && enable gnu_as || \
3313         $nogas "GNU assembler not found, install gas-preprocessor"
3314 .macro m n
3315 \n: .int 0
3316 .endm
3317 m x
3318 EOF
3319 fi
3320
3321 check_ldflags -Wl,--as-needed
3322
3323 if check_func dlopen; then
3324     ldl=
3325 elif check_func dlopen -ldl; then
3326     ldl=-ldl
3327 fi
3328
3329 if ! disabled network; then
3330     check_type "sys/types.h sys/socket.h" socklen_t
3331     check_type netdb.h "struct addrinfo"
3332     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3333     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3334     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3335     check_type netinet/in.h "struct sockaddr_in6"
3336     check_type poll.h "struct pollfd"
3337     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3338     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3339     check_type netinet/sctp.h "struct sctp_event_subscribe"
3340     check_func getaddrinfo $network_extralibs
3341     check_func getservbyport $network_extralibs
3342     # Prefer arpa/inet.h over winsock2
3343     if check_header arpa/inet.h ; then
3344         check_func closesocket
3345     elif check_header winsock2.h ; then
3346         check_func_headers winsock2.h closesocket -lws2 &&
3347             network_extralibs="-lws2" ||
3348         { check_func_headers winsock2.h closesocket -lws2_32 &&
3349             network_extralibs="-lws2_32"; }
3350         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3351         check_type ws2tcpip.h socklen_t
3352         check_type ws2tcpip.h "struct addrinfo"
3353         check_type ws2tcpip.h "struct group_source_req"
3354         check_type ws2tcpip.h "struct ip_mreq_source"
3355         check_type ws2tcpip.h "struct ipv6_mreq"
3356         check_type winsock2.h "struct pollfd"
3357         check_type ws2tcpip.h "struct sockaddr_in6"
3358         check_type ws2tcpip.h "struct sockaddr_storage"
3359         check_struct winsock2.h "struct sockaddr" sa_len
3360     else
3361         disable network
3362     fi
3363 fi
3364
3365 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3366 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3367
3368 check_func  fcntl
3369 check_func  fork
3370 check_func  gethrtime
3371 check_func  getopt
3372 check_func  getrusage
3373 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3374 check_func  gettimeofday
3375 check_func  inet_aton $network_extralibs
3376 check_func  isatty
3377 check_func  localtime_r
3378 check_func  ${malloc_prefix}memalign            && enable memalign
3379 check_func  mkstemp
3380 check_func  mmap
3381 check_func  mprotect
3382 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3383 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3384 check_func  setrlimit
3385 check_func  strerror_r
3386 check_func  strptime
3387 check_func  strtok_r
3388 check_func  sched_getaffinity
3389 check_func  sysconf
3390 check_func  sysctl
3391 check_func  usleep
3392 check_func_headers io.h setmode
3393 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3394 check_lib2 "windows.h wincrypt.h" CryptGenRandom -ladvapi32
3395 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3396 check_func_headers windows.h GetProcessAffinityMask
3397 check_func_headers windows.h GetProcessTimes
3398 check_func_headers windows.h GetSystemTimeAsFileTime
3399 check_func_headers windows.h MapViewOfFile
3400 check_func_headers windows.h SetConsoleTextAttribute
3401 check_func_headers windows.h Sleep
3402 check_func_headers windows.h VirtualAlloc
3403
3404 check_header direct.h
3405 check_header dlfcn.h
3406 check_header dxva.h
3407 check_header dxva2api.h
3408 check_header io.h
3409 check_header malloc.h
3410 check_header poll.h
3411 check_header sys/mman.h
3412 check_header sys/param.h
3413 check_header sys/resource.h
3414 check_header sys/select.h
3415 check_header sys/time.h
3416 check_header unistd.h
3417 check_header vdpau/vdpau.h
3418 check_header vdpau/vdpau_x11.h
3419 check_header windows.h
3420 check_header X11/extensions/XvMClib.h
3421
3422 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3423 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3424
3425 if ! disabled w32threads && ! enabled pthreads; then
3426     check_func_headers "windows.h process.h" _beginthreadex && enable w32threads
3427 fi
3428
3429 # check for some common methods of building with pthread support
3430 # do this before the optional library checks as some of them require pthreads
3431 if ! disabled pthreads && ! enabled w32threads; then
3432     enable pthreads
3433     if check_func pthread_create; then
3434         :
3435     elif check_func pthread_create -pthread; then
3436         add_cflags -pthread
3437         add_extralibs -pthread
3438     elif check_func pthread_create -pthreads; then
3439         add_cflags -pthreads
3440         add_extralibs -pthreads
3441     elif check_func pthread_create -lpthreadGC2; then
3442         add_extralibs -lpthreadGC2
3443     elif ! check_lib pthread.h pthread_create -lpthread; then
3444         disable pthreads
3445     fi
3446 fi
3447
3448 for thread in $THREADS_LIST; do
3449     if enabled $thread; then
3450         test -n "$thread_type" &&
3451             die "ERROR: Only one thread type must be selected." ||
3452             thread_type="$thread"
3453     fi
3454 done
3455
3456 check_lib math.h sin -lm && LIBM="-lm"
3457 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3458
3459 atan2f_args=2
3460 ldexpf_args=2
3461 powf_args=2
3462
3463 for func in $MATH_FUNCS; do
3464     eval check_mathfunc $func \${${func}_args:-1}
3465 done
3466
3467 # these are off by default, so fail if requested and not available
3468 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3469 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3470 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3471 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3472 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3473 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3474 enabled libgsm     && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
3475                             check_lib "${gsm_hdr}" gsm_create -lgsm && break;
3476                         done || die "ERROR: libgsm not found"; }
3477 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3478 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3479 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3480 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3481 enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
3482 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3483 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3484 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3485 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3486 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3487 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3488 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3489 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3490 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3491 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3492 enabled libvpx     && {
3493     enabled libvpx_vp8_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3494                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3495     enabled libvpx_vp8_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VPX_CQ" -lvpx ||
3496                                 die "ERROR: libvpx encoder version must be >=0.9.6"; }
3497     enabled libvpx_vp9_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx || disable libvpx_vp9_decoder;  }
3498     enabled libvpx_vp9_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx" -lvpx || disable libvpx_vp9_encoder; } }
3499 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3500                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3501                         die "ERROR: libx264 version must be >= 0.118."; }
3502 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3503 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3504 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3505                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3506                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3507                         die "ERROR: openssl not found"; }
3508
3509 if enabled gnutls; then
3510     { check_lib nettle/bignum.h nettle_mpz_get_str_256 -lnettle -lhogweed -lgmp && enable nettle; } ||
3511     { check_lib gcrypt.h gcry_mpi_new -lgcrypt && enable gcrypt; }
3512 fi
3513
3514 # libdc1394 check
3515 if enabled libdc1394; then
3516     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3517         enable libdc1394_2; } ||
3518     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3519         enable libdc1394_1; } ||
3520     die "ERROR: No version of libdc1394 found "
3521 fi
3522
3523 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3524     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3525     enable sdl &&
3526     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3527 fi
3528
3529 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3530
3531 check_header linux/fb.h
3532 check_header linux/videodev2.h
3533 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3534
3535 check_header sys/videoio.h
3536
3537 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3538 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3539 # w32api 3.12 had it defined wrong
3540 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3541
3542 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3543 { check_header dev/bktr/ioctl_meteor.h &&
3544   check_header dev/bktr/ioctl_bt848.h; } ||
3545 { check_header machine/ioctl_meteor.h &&
3546   check_header machine/ioctl_bt848.h; } ||
3547 { check_header dev/video/meteor/ioctl_meteor.h &&
3548   check_header dev/video/bktr/ioctl_bt848.h; } ||
3549 check_header dev/ic/bt8xx.h
3550
3551 check_header sndio.h
3552 check_header sys/soundcard.h
3553 check_header soundcard.h
3554
3555 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3556
3557 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack &&
3558     check_func jack_port_get_latency_range -ljack
3559
3560 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3561
3562 if enabled libcdio; then
3563     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio || check_lib2 "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio
3564 fi
3565
3566 enabled x11grab                                           &&
3567 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3568 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3569 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3570
3571 # check for VDA header
3572 if ! disabled vda && check_header VideoDecodeAcceleration/VDADecoder.h; then
3573     enable vda && add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3574 fi
3575
3576 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3577     check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3578         { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." && disable vdpau; }
3579 fi
3580
3581 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3582
3583 # add some useful compiler flags if supported
3584 check_cflags -Wdeclaration-after-statement
3585 check_cflags -Wall
3586 check_cflags -Wno-parentheses
3587 check_cflags -Wno-switch
3588 check_cflags -Wno-format-zero-length
3589 check_cflags -Wdisabled-optimization
3590 check_cflags -Wpointer-arith
3591 check_cflags -Wredundant-decls
3592 check_cflags -Wno-pointer-sign
3593 check_cflags -Wcast-qual
3594 check_cflags -Wwrite-strings
3595 check_cflags -Wtype-limits
3596 check_cflags -Wundef
3597 check_cflags -Wmissing-prototypes
3598 check_cflags -Wstrict-prototypes
3599 enabled extra_warnings && check_cflags -Winline
3600
3601 # add some linker flags
3602 check_ldflags -Wl,--warn-common
3603 check_ldflags -Wl,-rpath-link=libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3604 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3605
3606 enabled xmm_clobber_test &&
3607     check_ldflags -Wl,--wrap,avcodec_open2              \
3608                   -Wl,--wrap,avcodec_decode_audio4      \
3609                   -Wl,--wrap,avcodec_decode_video2      \
3610                   -Wl,--wrap,avcodec_decode_subtitle2   \
3611                   -Wl,--wrap,avcodec_encode_audio2      \
3612                   -Wl,--wrap,avcodec_encode_video       \
3613                   -Wl,--wrap,avcodec_encode_subtitle    \
3614                   -Wl,--wrap,sws_scale ||
3615     disable xmm_clobber_test
3616
3617 echo "X{};" > $TMPV
3618 if test_ldflags -Wl,--version-script,$TMPV; then
3619     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3620     check_cc <<EOF && enable symver_asm_label
3621 void ff_foo(void) __asm__ ("av_foo@VERSION");
3622 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3623 EOF
3624     check_cc <<EOF && enable symver_gnu_asm
3625 __asm__(".symver ff_foo,av_foo@VERSION");
3626 void ff_foo(void) {}
3627 EOF
3628 fi
3629
3630 if [ -z "$optflags" ]; then
3631     if enabled small; then
3632         optflags=$cflags_size
3633     elif enabled optimizations; then
3634         optflags=$cflags_speed
3635     else
3636         optflags=$cflags_noopt
3637     fi
3638 fi
3639
3640 check_optflags(){
3641     check_cflags "$@"
3642     enabled lto && check_ldflags "$@"
3643 }
3644
3645
3646 if enabled lto; then
3647     test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
3648     check_cflags  -flto
3649     check_ldflags -flto $cpuflags
3650 fi
3651
3652 check_optflags $optflags
3653 check_optflags -fno-math-errno
3654 check_optflags -fno-signed-zeros
3655
3656 if enabled icc; then
3657     # Just warnings, no remarks
3658     check_cflags -w1
3659     # -wd: Disable following warnings
3660     # 144, 167, 556: -Wno-pointer-sign
3661     # 1292: attribute "foo" ignored
3662     # 1419: external declaration in primary source file
3663     # 10006: ignoring unknown option -fno-signed-zeros
3664     # 10148: ignoring unknown option -Wno-parentheses
3665     # 10156: ignoring option '-W'; no argument required
3666     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3667     # 11030: Warning unknown option --as-needed
3668     # 10156: ignoring option '-export'; no argument required
3669     check_ldflags -wd10156,11030
3670     # Allow to compile with optimizations
3671     check_ldflags -march=$cpu
3672     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3673     enable ebp_available
3674     if enabled x86_32; then
3675         icc_version=$($cc -dumpversion)
3676         test ${icc_version%%.*} -ge 11 &&
3677             check_cflags -falign-stack=maintain-16-byte ||
3678             disable aligned_stack
3679     fi
3680 elif enabled ccc; then
3681     # disable some annoying warnings
3682     add_cflags -msg_disable bitnotint
3683     add_cflags -msg_disable mixfuncvoid
3684     add_cflags -msg_disable nonstandcast
3685     add_cflags -msg_disable unsupieee
3686 elif enabled gcc; then
3687     check_optflags -fno-tree-vectorize
3688     check_cflags -Werror=implicit-function-declaration
3689     check_cflags -Werror=missing-prototypes
3690     check_cflags -Werror=return-type
3691     check_cflags -Werror=declaration-after-statement
3692     check_cflags -Werror=vla
3693 elif enabled llvm_gcc; then
3694     check_cflags -mllvm -stack-alignment=16
3695 elif enabled clang; then
3696     check_cflags -mllvm -stack-alignment=16
3697     check_cflags -Qunused-arguments
3698     check_cflags -Werror=implicit-function-declaration
3699     check_cflags -Werror=missing-prototypes
3700     check_cflags -Werror=return-type
3701 elif enabled armcc; then
3702     # 2523: use of inline assembler is deprecated
3703     add_cflags -W${armcc_opt},--diag_suppress=2523
3704     add_cflags -W${armcc_opt},--diag_suppress=1207
3705     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3706     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3707     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3708     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3709 elif enabled tms470; then
3710     add_cflags -pds=824 -pds=837
3711 elif enabled pathscale; then
3712     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3713 elif enabled msvc; then
3714     enabled x86_32 && disable aligned_stack
3715 fi
3716
3717 case $target_os in
3718     osf1)
3719         enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
3720     ;;
3721     plan9)
3722         add_cppflags -Dmain=plan9_main
3723     ;;
3724 esac
3725
3726 enabled_any $THREADS_LIST      && enable threads
3727
3728 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3729
3730 check_deps $CONFIG_LIST       \
3731            $CONFIG_EXTRA      \
3732            $HAVE_LIST         \
3733            $ALL_COMPONENTS    \
3734
3735 ! enabled_any memalign posix_memalign aligned_malloc &&
3736     enabled_any $need_memalign && enable memalign_hack
3737
3738 echo "install prefix            $prefix"
3739 echo "source path               $source_path"
3740 echo "C compiler                $cc"
3741 echo "ARCH                      $arch ($cpu)"
3742 if test "$build_suffix" != ""; then
3743     echo "build suffix              $build_suffix"
3744 fi
3745 if test "$extra_version" != ""; then
3746     echo "version string suffix     $extra_version"
3747 fi
3748 echo "big-endian                ${bigendian-no}"
3749 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3750 if enabled x86; then
3751     echo "${yasmexe}                      ${yasm-no}"
3752     echo "MMX enabled               ${mmx-no}"
3753     echo "MMXEXT enabled            ${mmxext-no}"
3754     echo "3DNow! enabled            ${amd3dnow-no}"
3755     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3756     echo "SSE enabled               ${sse-no}"
3757     echo "SSSE3 enabled             ${ssse3-no}"
3758     echo "AVX enabled               ${avx-no}"
3759     echo "FMA4 enabled              ${fma4-no}"
3760     echo "CMOV enabled              ${cmov-no}"
3761     echo "CMOV is fast              ${fast_cmov-no}"
3762     echo "EBX available             ${ebx_available-no}"
3763     echo "EBP available             ${ebp_available-no}"
3764 fi
3765 if enabled arm; then
3766     echo "ARMv5TE enabled           ${armv5te-no}"
3767     echo "ARMv6 enabled             ${armv6-no}"
3768     echo "ARMv6T2 enabled           ${armv6t2-no}"
3769     echo "VFP enabled               ${vfp-no}"
3770     echo "NEON enabled              ${neon-no}"
3771 fi
3772 if enabled ppc; then
3773     echo "AltiVec enabled           ${altivec-no}"
3774     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3775     echo "dcbzl available           ${dcbzl-no}"
3776 fi
3777 if enabled sparc; then
3778     echo "VIS enabled               ${vis-no}"
3779 fi
3780 echo "debug symbols             ${debug-no}"
3781 echo "optimize for size         ${small-no}"
3782 echo "optimizations             ${optimizations-no}"
3783 echo "static                    ${static-no}"
3784 echo "shared                    ${shared-no}"
3785 echo "new filter support        ${avfilter-no}"
3786 echo "network support           ${network-no}"
3787 echo "threading support         ${thread_type-no}"
3788 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3789 echo "SDL support               ${sdl-no}"
3790 echo "libdxva2 enabled          ${dxva2-no}"
3791 echo "libva enabled             ${vaapi-no}"
3792 echo "libvdpau enabled          ${vdpau-no}"
3793 echo "AVISynth enabled          ${avisynth-no}"
3794 echo "frei0r enabled            ${frei0r-no}"
3795 echo "gnutls enabled            ${gnutls-no}"
3796 echo "libcdio support           ${libcdio-no}"
3797 echo "libdc1394 support         ${libdc1394-no}"
3798 echo "libfaac enabled           ${libfaac-no}"
3799 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3800 echo "libgsm enabled            ${libgsm-no}"
3801 echo "libilbc enabled           ${libilbc-no}"
3802 echo "libmp3lame enabled        ${libmp3lame-no}"
3803 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3804 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3805 echo "libopencv support         ${libopencv-no}"
3806 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3807 echo "libopus enabled           ${libopus-no}"
3808 echo "libpulse enabled          ${libpulse-no}"
3809 echo "librtmp enabled           ${librtmp-no}"
3810 echo "libschroedinger enabled   ${libschroedinger-no}"
3811 echo "libspeex enabled          ${libspeex-no}"
3812 echo "libtheora enabled         ${libtheora-no}"
3813 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3814 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3815 echo "libvorbis enabled         ${libvorbis-no}"
3816 echo "libvpx enabled            ${libvpx-no}"
3817 echo "libx264 enabled           ${libx264-no}"
3818 echo "libxavs enabled           ${libxavs-no}"
3819 echo "libxvid enabled           ${libxvid-no}"
3820 echo "openssl enabled           ${openssl-no}"
3821 echo "zlib enabled              ${zlib-no}"
3822 echo "bzlib enabled             ${bzlib-no}"
3823 test -n "$random_seed" &&
3824     echo "random seed               ${random_seed}"
3825 echo
3826
3827 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3828     echo "Enabled ${type}s:"
3829     eval list=\$$(toupper $type)_LIST
3830     print_enabled '_*' $list | sort | pr -r -3 -t
3831     echo
3832 done
3833
3834 license="LGPL version 2.1 or later"
3835 if enabled nonfree; then
3836     license="nonfree and unredistributable"
3837 elif enabled gplv3; then
3838     license="GPL version 3 or later"
3839 elif enabled lgplv3; then
3840     license="LGPL version 3 or later"
3841 elif enabled gpl; then
3842     license="GPL version 2 or later"
3843 fi
3844
3845 echo "License: $license"
3846
3847 echo "Creating config.mak and config.h..."
3848
3849 test -e Makefile || $ln_s "$source_path/Makefile" .
3850
3851 config_files="$TMPH config.mak"
3852
3853 cat > config.mak <<EOF
3854 # Automatically generated by configure - do not modify!
3855 LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3856 prefix=$prefix
3857 LIBDIR=\$(DESTDIR)$libdir
3858 SHLIBDIR=\$(DESTDIR)$shlibdir
3859 INCDIR=\$(DESTDIR)$incdir
3860 BINDIR=\$(DESTDIR)$bindir
3861 DATADIR=\$(DESTDIR)$datadir
3862 MANDIR=\$(DESTDIR)$mandir
3863 SRC_PATH=$source_path
3864 CC_IDENT=$cc_ident
3865 ARCH=$arch
3866 CC=$cc
3867 AS=$as
3868 LD=$ld
3869 DEPCC=$dep_cc
3870 DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
3871 DEPAS=$as
3872 DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
3873 YASM=$yasmexe
3874 DEPYASM=$yasmexe
3875 AR=$ar
3876 ARFLAGS=$arflags
3877 AR_O=$ar_o
3878 RANLIB=$ranlib
3879 LN_S=$ln_s
3880 CPPFLAGS=$CPPFLAGS
3881 CFLAGS=$CFLAGS
3882 ASFLAGS=$ASFLAGS
3883 AS_C=$AS_C
3884 AS_O=$AS_O
3885 CC_C=$CC_C
3886 CC_E=$CC_E
3887 CC_O=$CC_O
3888 LD_O=$LD_O
3889 LD_LIB=$LD_LIB
3890 LD_PATH=$LD_PATH
3891 DLLTOOL=$dlltool
3892 LDFLAGS=$LDFLAGS
3893 LDFLAGS-avserver=$AVSERVERLDFLAGS
3894 SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
3895 YASMFLAGS=$YASMFLAGS
3896 BUILDSUF=$build_suffix
3897 FULLNAME=$FULLNAME
3898 LIBPREF=$LIBPREF
3899 LIBSUF=$LIBSUF
3900 LIBNAME=$LIBNAME
3901 SLIBPREF=$SLIBPREF
3902 SLIBSUF=$SLIBSUF
3903 EXESUF=$EXESUF
3904 EXTRA_VERSION=$extra_version
3905 CCDEP=$CCDEP
3906 CCDEP_FLAGS=$CCDEP_FLAGS
3907 ASDEP=$ASDEP
3908 ASDEP_FLAGS=$ASDEP_FLAGS
3909 CC_DEPFLAGS=$CC_DEPFLAGS
3910 AS_DEPFLAGS=$AS_DEPFLAGS
3911 HOSTCC=$host_cc
3912 HOSTLD=$host_ld
3913 HOSTCFLAGS=$host_cflags
3914 HOSTEXESUF=$HOSTEXESUF
3915 HOSTLDFLAGS=$host_ldflags
3916 HOSTLIBS=$host_libs
3917 DEPHOSTCC=$host_cc
3918 DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
3919 HOSTCCDEP=$HOSTCCDEP
3920 HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
3921 HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
3922 HOSTCC_C=$HOSTCC_C
3923 HOSTCC_O=$HOSTCC_O
3924 HOSTLD_O=$HOSTLD_O
3925 TARGET_EXEC=$target_exec
3926 TARGET_PATH=$target_path
3927 LIBS-avplay=$sdl_libs
3928 CFLAGS-avplay=$sdl_cflags
3929 ZLIB=$($ldflags_filter -lz)
3930 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3931 EXTRALIBS=$extralibs
3932 COMPAT_OBJS=$compat_objs
3933 EXEOBJS=$exeobjs
3934 INSTALL=install
3935 LIBTARGET=${LIBTARGET}
3936 SLIBNAME=${SLIBNAME}
3937 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3938 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3939 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3940 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3941 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3942 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3943 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3944 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3945 SAMPLES:=${samples:-\$(LIBAV_SAMPLES)}
3946 EOF
3947
3948 get_version(){
3949     lcname=lib${1}
3950     name=$(toupper $lcname)
3951     file=$source_path/$lcname/version.h
3952     eval $(awk "/#define ${name}_VERSION_M/ { print \$2 \"=\" \$3 }" "$file")
3953     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3954     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3955     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3956 }
3957
3958 map 'get_version $v' $LIBRARY_LIST
3959
3960 cat > $TMPH <<EOF
3961 /* Automatically generated by configure - do not modify! */
3962 #ifndef LIBAV_CONFIG_H
3963 #define LIBAV_CONFIG_H
3964 #define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3965 #define LIBAV_LICENSE "$(c_escape $license)"
3966 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3967 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
3968 #define restrict $_restrict
3969 #define EXTERN_PREFIX "${extern_prefix}"
3970 #define EXTERN_ASM ${extern_prefix}
3971 #define SLIBSUF "$SLIBSUF"
3972 EOF
3973
3974 test -n "$malloc_prefix" &&
3975     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3976
3977 if enabled yasm; then
3978     append config_files $TMPASM
3979     printf '' >$TMPASM
3980 fi
3981
3982 print_config ARCH_   "$config_files" $ARCH_LIST
3983 print_config HAVE_   "$config_files" $HAVE_LIST
3984 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3985                                      $CONFIG_EXTRA      \
3986                                      $ALL_COMPONENTS    \
3987
3988 echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3989
3990 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3991 cp_if_changed $TMPH config.h
3992 touch .config
3993
3994 enabled yasm && cp_if_changed $TMPASM config.asm
3995
3996 cat > $TMPH <<EOF
3997 /* Generated by ffconf */
3998 #ifndef AVUTIL_AVCONFIG_H
3999 #define AVUTIL_AVCONFIG_H
4000 EOF
4001
4002 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
4003
4004 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
4005
4006 cp_if_changed $TMPH libavutil/avconfig.h
4007
4008 test -n "$WARNINGS" && printf "\n$WARNINGS"
4009
4010 # build pkg-config files
4011
4012 pkgconfig_generate(){
4013     name=$1
4014     shortname=${name#lib}${build_suffix}
4015     comment=$2
4016     version=$3
4017     libs=$4
4018     requires=$5
4019     enabled ${name#lib} || return 0
4020     mkdir -p $name
4021     cat <<EOF > $name/$name.pc
4022 prefix=$prefix
4023 exec_prefix=\${prefix}
4024 libdir=$libdir
4025 includedir=$incdir
4026
4027 Name: $name
4028 Description: $comment
4029 Version: $version
4030 Requires: $(enabled shared || echo $requires)
4031 Requires.private: $(enabled shared && echo $requires)
4032 Conflicts:
4033 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4034 Libs.private: $(enabled shared && echo $libs)
4035 Cflags: -I\${includedir}
4036 EOF
4037     cat <<EOF > $name/$name-uninstalled.pc
4038 prefix=
4039 exec_prefix=
4040 libdir=\${pcfiledir}
4041 includedir=${source_path}
4042
4043 Name: $name
4044 Description: $comment
4045 Version: $version
4046 Requires: $requires
4047 Conflicts:
4048 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
4049 Cflags: -I\${includedir}
4050 EOF
4051 }
4052
4053 pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4054 pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4055 pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4056 pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
4057 pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4058 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4059 pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"