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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Help options:
  63   --help                   print this message
  64   --list-decoders          show all available decoders
  65   --list-encoders          show all available encoders
  66   --list-hwaccels          show all available hardware accelerators
  67   --list-demuxers          show all available demuxers
  68   --list-muxers            show all available muxers
  69   --list-parsers           show all available parsers
  70   --list-protocols         show all available protocols
  71   --list-bsfs              show all available bitstream filters
  72   --list-indevs            show all available input devices
  73   --list-outdevs           show all available output devices
  74   --list-filters           show all available filters
  75
  76 Standard options:
  77   --logfile=FILE           log tests and output to FILE [config.log]
  78   --disable-logging        do not log configure debug information
  79   --prefix=PREFIX          install in PREFIX [$prefix]
  80   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  81   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  82   --libdir=DIR             install libs in DIR [PREFIX/lib]
  83   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  84   --incdir=DIR             install includes in DIR [PREFIX/include]
  85   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  86
  87 Licensing options:
  88   --enable-gpl             allow use of GPL code, the resulting libs
  89                            and binaries will be under GPL [no]
  90   --enable-version3        upgrade (L)GPL to version 3 [no]
  91   --enable-nonfree         allow use of nonfree code, the resulting libs
  92                            and binaries will be unredistributable [no]
  93
  94 Configuration options:
  95   --disable-static         do not build static libraries [no]
  96   --enable-shared          build shared libraries [no]
  97   --enable-small           optimize for size instead of speed
  98   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101
 102 Component options:
 103   --disable-doc            do not build documentation
 104   --disable-ffmpeg         disable ffmpeg build
 105   --disable-ffplay         disable ffplay build
 106   --disable-ffprobe        disable ffprobe build
 107   --disable-ffserver       disable ffserver build
 108   --disable-avdevice       disable libavdevice build
 109   --disable-avcodec        disable libavcodec build
 110   --disable-avformat       disable libavformat build
 111   --disable-swresample     disable libswresample build
 112   --disable-swscale        disable libswscale build
 113   --disable-postproc       disable libpostproc build
 114   --disable-avfilter       disable video filter support [no]
 115   --enable-avresample      enable libavresample build [no]
 116   --disable-pthreads       disable pthreads [auto]
 117   --disable-w32threads     disable Win32 threads [auto]
 118   --disable-os2threads     disable OS/2 threads [auto]
 119   --enable-x11grab         enable X11 grabbing [no]
 120   --disable-network        disable network support [no]
 121   --disable-dct            disable DCT code
 122   --disable-mdct           disable MDCT code
 123   --disable-rdft           disable RDFT code
 124   --disable-fft            disable FFT code
 125   --enable-dxva2           enable DXVA2 code
 126   --enable-vaapi           enable VAAPI code [autodetect]
 127   --enable-vda             enable VDA code   [autodetect]
 128   --enable-vdpau           enable VDPAU code [autodetect]
 129
 130 Individual component options:
 131   --disable-everything     disable all components listed below
 132   --disable-encoder=NAME   disable encoder NAME
 133   --enable-encoder=NAME    enable encoder NAME
 134   --disable-encoders       disable all encoders
 135   --disable-decoder=NAME   disable decoder NAME
 136   --enable-decoder=NAME    enable decoder NAME
 137   --disable-decoders       disable all decoders
 138   --disable-hwaccel=NAME   disable hwaccel NAME
 139   --enable-hwaccel=NAME    enable hwaccel NAME
 140   --disable-hwaccels       disable all hwaccels
 141   --disable-muxer=NAME     disable muxer NAME
 142   --enable-muxer=NAME      enable muxer NAME
 143   --disable-muxers         disable all muxers
 144   --disable-demuxer=NAME   disable demuxer NAME
 145   --enable-demuxer=NAME    enable demuxer NAME
 146   --disable-demuxers       disable all demuxers
 147   --enable-parser=NAME     enable parser NAME
 148   --disable-parser=NAME    disable parser NAME
 149   --disable-parsers        disable all parsers
 150   --enable-bsf=NAME        enable bitstream filter NAME
 151   --disable-bsf=NAME       disable bitstream filter NAME
 152   --disable-bsfs           disable all bitstream filters
 153   --enable-protocol=NAME   enable protocol NAME
 154   --disable-protocol=NAME  disable protocol NAME
 155   --disable-protocols      disable all protocols
 156   --enable-indev=NAME      enable input device NAME
 157   --disable-indev=NAME     disable input device NAME
 158   --disable-indevs         disable input devices
 159   --enable-outdev=NAME     enable output device NAME
 160   --disable-outdev=NAME    disable output device NAME
 161   --disable-outdevs        disable output devices
 162   --disable-devices        disable all devices
 163   --enable-filter=NAME     enable filter NAME
 164   --disable-filter=NAME    disable filter NAME
 165   --disable-filters        disable all filters
 166
 167 External library support:
 168   --enable-avisynth        enable reading of AVISynth script files [no]
 169   --enable-bzlib           enable bzlib [autodetect]
 170   --enable-fontconfig      enable fontconfig
 171   --enable-frei0r          enable frei0r video filtering
 172   --enable-gnutls          enable gnutls [no]
 173   --enable-libaacplus      enable AAC+ encoding via libaacplus [no]
 174   --enable-libass          enable libass subtitles rendering [no]
 175   --enable-libbluray       enable BluRay reading using libbluray [no]
 176   --enable-libcelt         enable CELT decoding via libcelt [no]
 177   --enable-libcdio         enable audio CD grabbing with libcdio
 178   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 179                            and libraw1394 [no]
 180   --enable-libfaac         enable FAAC support via libfaac [no]
 181   --enable-libfreetype     enable libfreetype [no]
 182   --enable-libgsm          enable GSM support via libgsm [no]
 183   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 184   --enable-libmodplug      enable ModPlug via libmodplug [no]
 185   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 186   --enable-libnut          enable NUT (de)muxing via libnut,
 187                            native (de)muxer exists [no]
 188   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 189   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 190   --enable-libopencv       enable video filtering via libopencv [no]
 191   --enable-libopenjpeg     enable JPEG 2000 encoding/decoding via OpenJPEG [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 support via libschroedinger [no]
 195   --enable-libspeex        enable Speex support via libspeex [no]
 196   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 197   --enable-libtheora       enable Theora encoding via libtheora [no]
 198   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 199   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 200   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 201   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 202   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 203                            native implementation exists [no]
 204   --enable-libvpx          enable VP8 support via libvpx [no]
 205   --enable-libx264         enable H.264 encoding via x264 [no]
 206   --enable-libxavs         enable AVS encoding via xavs [no]
 207   --enable-libxvid         enable Xvid encoding via xvidcore,
 208                            native MPEG-4/Xvid encoder exists [no]
 209   --enable-openal          enable OpenAL 1.1 capture support [no]
 210   --enable-openssl         enable openssl [no]
 211   --enable-zlib            enable zlib [autodetect]
 212
 213 Advanced options (experts only):
 214   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 215   --enable-cross-compile   assume a cross-compiler is used
 216   --sysroot=PATH           root of cross-build tree
 217   --sysinclude=PATH        location of cross-build system headers
 218   --target-os=OS           compiler targets OS [$target_os]
 219   --target-exec=CMD        command to run executables on target
 220   --target-path=DIR        path to view of build directory on target
 221   --nm=NM                  use nm tool NM [$nm_default]
 222   --ar=AR                  use archive tool AR [$ar_default]
 223   --as=AS                  use assembler AS [$as_default]
 224   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 225   --cc=CC                  use C compiler CC [$cc_default]
 226   --cxx=CXX                use C compiler CXX [$cxx_default]
 227   --ld=LD                  use linker LD [$ld_default]
 228   --host-cc=HOSTCC         use host C compiler HOSTCC
 229   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 230   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 231   --host-libs=HLIBS        use libs HLIBS when linking for host
 232   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 233   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 234   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 235   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 236   --extra-version=STRING   version string suffix []
 237   --optflags               override optimization-related compiler flags
 238   --build-suffix=SUFFIX    library name suffix []
 239   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 240   --progs-suffix=SUFFIX    program name suffix []
 241   --arch=ARCH              select architecture [$arch]
 242   --cpu=CPU                select the minimum required CPU (affects
 243                            instruction selection, may crash on older CPUs)
 244   --enable-pic             build position-independent code
 245   --enable-sram            allow use of on-chip SRAM
 246   --disable-symver         disable symbol versioning
 247   --disable-fastdiv        disable table-based division
 248   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 249   --disable-safe-bitstream-reader
 250                            disable buffer boundary checking in bitreaders
 251                            (faster, but may crash)
 252   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 253
 254 Optimization options (experts only):
 255   --disable-asm            disable all assembler optimizations
 256   --disable-altivec        disable AltiVec optimizations
 257   --disable-amd3dnow       disable 3DNow! optimizations
 258   --disable-amd3dnowext    disable 3DNow! extended optimizations
 259   --disable-mmx            disable MMX optimizations
 260   --disable-mmx2           disable MMX2 optimizations
 261   --disable-sse            disable SSE optimizations
 262   --disable-ssse3          disable SSSE3 optimizations
 263   --disable-avx            disable AVX optimizations
 264   --disable-armv5te        disable armv5te optimizations
 265   --disable-armv6          disable armv6 optimizations
 266   --disable-armv6t2        disable armv6t2 optimizations
 267   --disable-armvfp         disable ARM VFP optimizations
 268   --disable-mmi            disable MMI optimizations
 269   --disable-neon           disable NEON optimizations
 270   --disable-vis            disable VIS optimizations
 271   --disable-yasm           disable use of yasm assembler
 272   --disable-mips32r2       disable MIPS32R2 optimizations
 273   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 274   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 275   --disable-mipsfpu        disable floating point MIPS optimizations
 276   --disable-fast-unaligned consider unaligned accesses slow
 277   --postproc-version=V     build libpostproc version V.
 278                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 279
 280 Developer options (useful when working on FFmpeg itself):
 281   --enable-coverage        build with test coverage instrumentation
 282   --disable-debug          disable debugging symbols
 283   --enable-debug=LEVEL     set the debug level [$debuglevel]
 284   --disable-optimizations  disable compiler optimizations
 285   --enable-extra-warnings  enable more compiler warnings
 286   --disable-stripping      disable stripping of executables and shared libraries
 287   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 288                            2 causes a slowdown at runtime.
 289   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 290   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 291                            leaks and errors, using the specified valgrind binary.
 292                            Cannot be combined with --target-exec
 293   --samples=PATH           location of test samples for FATE, if not set use
 294                            \$FATE_SAMPLES at make invocation time.
 295   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 296                            should be used only for debugging purposes)
 297   --enable-random          randomly enable/disable components
 298   --disable-random
 299   --enable-random=LIST     randomly enable/disable specific components or
 300   --disable-random=LIST    component groups. LIST is a comma-separated list
 301                            of NAME[:PROB] entries where NAME is a component
 302                            (group) and PROB the probability associated with
 303                            NAME (default 0.5).
 304   --random-seed=VALUE      seed value for --enable/disable-random
 305
 306 NOTE: Object files are built at the place where configure is launched.
 307 EOF
 308   exit 0
 309 }
 310
 311 quotes='""'
 312
 313 log(){
 314     echo "$@" >> $logfile
 315 }
 316
 317 log_file(){
 318     log BEGIN $1
 319     pr -n -t $1 >> $logfile
 320     log END $1
 321 }
 322
 323 echolog(){
 324     log "$@"
 325     echo "$@"
 326 }
 327
 328 warn(){
 329     log "WARNING: $*"
 330     WARNINGS="${WARNINGS}WARNING: $*\n"
 331 }
 332
 333 die(){
 334     echolog "$@"
 335     cat <<EOF
 336
 337 If you think configure made a mistake, make sure you are using the latest
 338 version from Git.  If the latest version fails, report the problem to the
 339 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 340 EOF
 341     if disabled logging; then
 342         cat <<EOF
 343 Rerun configure with logging enabled (do not use --disable-logging), and
 344 include the log this produces with your report.
 345 EOF
 346     else
 347 cat <<EOF
 348 Include the log file "$logfile" produced by configure as this will help
 349 solving the problem.
 350 EOF
 351     fi
 352     exit 1
 353 }
 354
 355 # Avoid locale weirdness, besides we really just want to translate ASCII.
 356 toupper(){
 357     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 358 }
 359
 360 tolower(){
 361     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 362 }
 363
 364 c_escape(){
 365     echo "$*" | sed 's/["\\]/\\\0/g'
 366 }
 367
 368 sh_quote(){
 369     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 370     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 371     echo "$v"
 372 }
 373
 374 cleanws(){
 375     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 376 }
 377
 378 filter(){
 379     pat=$1
 380     shift
 381     for v; do
 382         eval "case $v in $pat) echo $v ;; esac"
 383     done
 384 }
 385
 386 filter_out(){
 387     pat=$1
 388     shift
 389     for v; do
 390         eval "case $v in $pat) ;; *) echo $v ;; esac"
 391     done
 392 }
 393
 394 map(){
 395     m=$1
 396     shift
 397     for v; do eval $m; done
 398 }
 399
 400 set_all(){
 401     value=$1
 402     shift
 403     for var in $*; do
 404         eval $var=$value
 405     done
 406 }
 407
 408 set_weak(){
 409     value=$1
 410     shift
 411     for var; do
 412         eval : \${$var:=$value}
 413     done
 414 }
 415
 416 set_safe(){
 417     var=$1
 418     shift
 419     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 420 }
 421
 422 get_safe(){
 423     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 424 }
 425
 426 pushvar(){
 427     for var in $*; do
 428         eval level=\${${var}_level:=0}
 429         eval ${var}_${level}="\$$var"
 430         eval ${var}_level=$(($level+1))
 431     done
 432 }
 433
 434 popvar(){
 435     for var in $*; do
 436         eval level=\${${var}_level:-0}
 437         test $level = 0 && continue
 438         eval level=$(($level-1))
 439         eval $var="\${${var}_${level}}"
 440         eval ${var}_level=$level
 441         eval unset ${var}_${level}
 442     done
 443 }
 444
 445 enable(){
 446     set_all yes $*
 447 }
 448
 449 disable(){
 450     set_all no $*
 451 }
 452
 453 enable_weak(){
 454     set_weak yes $*
 455 }
 456
 457 disable_weak(){
 458     set_weak no $*
 459 }
 460
 461 enable_safe(){
 462     for var; do
 463         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 464     done
 465 }
 466
 467 disable_safe(){
 468     for var; do
 469         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 470     done
 471 }
 472
 473 do_enable_deep(){
 474     for var; do
 475         enabled $var && continue
 476         eval sel="\$${var}_select"
 477         eval sgs="\$${var}_suggest"
 478         pushvar var sgs
 479         enable_deep $sel
 480         popvar sgs
 481         enable_deep_weak $sgs
 482         popvar var
 483     done
 484 }
 485
 486 enable_deep(){
 487     do_enable_deep $*
 488     enable $*
 489 }
 490
 491 enable_deep_weak(){
 492     do_enable_deep $*
 493     enable_weak $*
 494 }
 495
 496 enabled(){
 497     test "${1#!}" = "$1" && op== || op=!=
 498     eval test "x\$${1#!}" $op "xyes"
 499 }
 500
 501 disabled(){
 502     test "${1#!}" = "$1" && op== || op=!=
 503     eval test "x\$${1#!}" $op "xno"
 504 }
 505
 506 enabled_all(){
 507     for opt; do
 508         enabled $opt || return 1
 509     done
 510 }
 511
 512 disabled_all(){
 513     for opt; do
 514         disabled $opt || return 1
 515     done
 516 }
 517
 518 enabled_any(){
 519     for opt; do
 520         enabled $opt && return 0
 521     done
 522 }
 523
 524 disabled_any(){
 525     for opt; do
 526         disabled $opt && return 0
 527     done
 528     return 1
 529 }
 530
 531 set_default(){
 532     for opt; do
 533         eval : \${$opt:=\$${opt}_default}
 534     done
 535 }
 536
 537 is_in(){
 538     value=$1
 539     shift
 540     for var in $*; do
 541         [ $var = $value ] && return 0
 542     done
 543     return 1
 544 }
 545
 546 check_deps(){
 547     for cfg; do
 548         cfg="${cfg#!}"
 549         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 550         disabled ${cfg}_checking && continue
 551         enable ${cfg}_checking
 552
 553         eval dep_all="\$${cfg}_deps"
 554         eval dep_any="\$${cfg}_deps_any"
 555         eval dep_sel="\$${cfg}_select"
 556         eval dep_sgs="\$${cfg}_suggest"
 557         eval dep_ifa="\$${cfg}_if"
 558         eval dep_ifn="\$${cfg}_if_any"
 559
 560         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 561         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 562         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 563
 564         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 565         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 566         enabled_all  $dep_all || disable $cfg
 567         enabled_any  $dep_any || disable $cfg
 568         disabled_any $dep_sel && disable $cfg
 569
 570         if enabled $cfg; then
 571             eval dep_extralibs="\$${cfg}_extralibs"
 572             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 573             enable_deep $dep_sel
 574             enable_deep_weak $dep_sgs
 575         fi
 576
 577         disable ${cfg}_checking
 578     done
 579 }
 580
 581 print_config_h(){
 582     enabled $1 && v=1 || v=0
 583     echo "#define $2 $v"
 584 }
 585
 586 print_config_mak(){
 587     enabled $1 && v= || v=!
 588     echo "$v$2=yes"
 589 }
 590
 591 print_config_asm(){
 592     enabled $1 && v=1 || v=0
 593     echo "%define $2 $v"
 594 }
 595
 596 print_config(){
 597     pfx=$1
 598     files=$2
 599     shift 2
 600     for cfg; do
 601         ucname="$(toupper $cfg)"
 602         for f in $files; do
 603             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 604         done
 605     done
 606 }
 607
 608 print_enabled(){
 609     test "$1" = -n && end=" " && shift || end="\n"
 610     suf=$1
 611     shift
 612     for v; do
 613         enabled $v && printf "%s$end" ${v%$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 $($filter_cppflags "$@")
 631 }
 632
 633 add_cflags(){
 634     append CFLAGS $($filter_cflags "$@")
 635 }
 636
 637 add_cxxflags(){
 638     append CXXFLAGS $($filter_cflags "$@")
 639 }
 640
 641 add_asflags(){
 642     append ASFLAGS $($filter_asflags "$@")
 643 }
 644
 645 add_ldflags(){
 646     append LDFLAGS "$@"
 647 }
 648
 649 add_extralibs(){
 650     prepend extralibs "$@"
 651 }
 652
 653 check_cmd(){
 654     log "$@"
 655     "$@" >> $logfile 2>&1
 656 }
 657
 658 check_cc(){
 659     log check_cc "$@"
 660     cat > $TMPC
 661     log_file $TMPC
 662     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 663 }
 664
 665 check_cxx(){
 666     log check_cxx "$@"
 667     cat > $TMPCPP
 668     log_file $TMPCPP
 669     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 670 }
 671
 672 check_cpp(){
 673     log check_cpp "$@"
 674     cat > $TMPC
 675     log_file $TMPC
 676     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 677 }
 678
 679 check_as(){
 680     log check_as "$@"
 681     cat > $TMPC
 682     log_file $TMPC
 683     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 684 }
 685
 686 check_asm(){
 687     log check_asm "$@"
 688     name="$1"
 689     code="$2"
 690     shift 2
 691     disable $name
 692     check_as "$@" <<EOF && enable $name
 693 void foo(void){ __asm__ volatile($code); }
 694 EOF
 695 }
 696
 697 check_yasm(){
 698     log check_yasm "$@"
 699     echo "$1" > $TMPS
 700     log_file $TMPS
 701     shift 1
 702     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 703 }
 704
 705 check_ld(){
 706     log check_ld "$@"
 707     type=$1
 708     shift 1
 709     flags=''
 710     libs=''
 711     for f; do
 712         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 713     done
 714     check_$type $($filter_cflags $flags) || return
 715     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 716 }
 717
 718 check_cppflags(){
 719     log check_cppflags "$@"
 720     set -- $($filter_cppflags "$@")
 721     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 722 int x;
 723 EOF
 724 }
 725
 726 check_cflags(){
 727     log check_cflags "$@"
 728     set -- $($filter_cflags "$@")
 729     check_cc "$@" <<EOF && append CFLAGS "$@"
 730 int x;
 731 EOF
 732 }
 733
 734 check_cxxflags(){
 735     log check_cxxflags "$@"
 736     set -- $($filter_cflags "$@")
 737     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 738 int x;
 739 EOF
 740 }
 741
 742 test_ldflags(){
 743     log test_ldflags "$@"
 744     check_ld "cc" "$@" <<EOF
 745 int main(void){ return 0; }
 746 EOF
 747 }
 748
 749 check_ldflags(){
 750     log check_ldflags "$@"
 751     test_ldflags "$@" && add_ldflags "$@"
 752 }
 753
 754 check_header(){
 755     log check_header "$@"
 756     header=$1
 757     shift
 758     disable_safe $header
 759     check_cpp "$@" <<EOF && enable_safe $header
 760 #include <$header>
 761 int x;
 762 EOF
 763 }
 764
 765 check_func(){
 766     log check_func "$@"
 767     func=$1
 768     shift
 769     disable $func
 770     check_ld "cc" "$@" <<EOF && enable $func
 771 extern int $func();
 772 int main(void){ $func(); }
 773 EOF
 774 }
 775
 776 check_mathfunc(){
 777     log check_mathfunc "$@"
 778     func=$1
 779     shift
 780     disable $func
 781     check_ld "cc" "$@" <<EOF && enable $func
 782 #include <math.h>
 783 float foo(float f) { return $func(f); }
 784 int main(void){ return (int) foo; }
 785 EOF
 786 }
 787
 788 check_func_headers(){
 789     log check_func_headers "$@"
 790     headers=$1
 791     funcs=$2
 792     shift 2
 793     {
 794         for hdr in $headers; do
 795             echo "#include <$hdr>"
 796         done
 797         for func in $funcs; do
 798             echo "long check_$func(void) { return (long) $func; }"
 799         done
 800         echo "int main(void) { return 0; }"
 801     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 802 }
 803
 804 check_class_headers_cpp(){
 805     log check_class_headers_cpp "$@"
 806     headers=$1
 807     classes=$2
 808     shift 2
 809     {
 810         for hdr in $headers; do
 811             echo "#include <$hdr>"
 812         done
 813         echo "int main(void) { "
 814         i=1
 815         for class in $classes; do
 816             echo "$class obj$i;"
 817             i=$(expr $i + 1)
 818         done
 819         echo "return 0; }"
 820     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 821 }
 822
 823 check_cpp_condition(){
 824     log check_cpp_condition "$@"
 825     header=$1
 826     condition=$2
 827     shift 2
 828     check_cpp $($filter_cppflags "$@") <<EOF
 829 #include <$header>
 830 #if !($condition)
 831 #error "unsatisfied condition: $condition"
 832 #endif
 833 EOF
 834 }
 835
 836 check_lib(){
 837     log check_lib "$@"
 838     header="$1"
 839     func="$2"
 840     shift 2
 841     check_header $header && check_func $func "$@" && add_extralibs "$@"
 842 }
 843
 844 check_lib2(){
 845     log check_lib2 "$@"
 846     headers="$1"
 847     funcs="$2"
 848     shift 2
 849     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 850 }
 851
 852 check_lib_cpp(){
 853     log check_lib_cpp "$@"
 854     headers="$1"
 855     classes="$2"
 856     shift 2
 857     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 858 }
 859
 860 check_pkg_config(){
 861     log check_pkg_config "$@"
 862     pkg="$1"
 863     headers="$2"
 864     funcs="$3"
 865     shift 3
 866     $pkg_config --exists $pkg 2>/dev/null || return
 867     pkg_cflags=$($pkg_config --cflags $pkg)
 868     pkg_libs=$($pkg_config --libs $pkg)
 869     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 870         set_safe ${pkg}_cflags $pkg_cflags   &&
 871         set_safe ${pkg}_libs   $pkg_libs
 872 }
 873
 874 check_exec(){
 875     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 876 }
 877
 878 check_exec_crash(){
 879     code=$(cat)
 880
 881     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 882     # are safe but may not be available everywhere.  Thus we use
 883     # raise(SIGTERM) instead.  The check is run in a subshell so we
 884     # can redirect the "Terminated" message from the shell.  SIGBUS
 885     # is not defined by standard C so it is used conditionally.
 886
 887     (check_exec "$@") >> $logfile 2>&1 <<EOF
 888 #include <signal.h>
 889 static void sighandler(int sig){
 890     raise(SIGTERM);
 891 }
 892 int func(void){
 893     $code
 894 }
 895 int (*func_ptr)(void) = func;
 896 int main(void){
 897     signal(SIGILL, sighandler);
 898     signal(SIGFPE, sighandler);
 899     signal(SIGSEGV, sighandler);
 900 #ifdef SIGBUS
 901     signal(SIGBUS, sighandler);
 902 #endif
 903     return func_ptr();
 904 }
 905 EOF
 906 }
 907
 908 check_type(){
 909     log check_type "$@"
 910     headers=$1
 911     type=$2
 912     shift 2
 913     disable_safe "$type"
 914     incs=""
 915     for hdr in $headers; do
 916         incs="$incs
 917 #include <$hdr>"
 918     done
 919     check_cc "$@" <<EOF && enable_safe "$type"
 920 $incs
 921 $type v;
 922 EOF
 923 }
 924
 925 check_struct(){
 926     log check_type "$@"
 927     headers=$1
 928     struct=$2
 929     member=$3
 930     shift 3
 931     disable_safe "${struct}_${member}"
 932     incs=""
 933     for hdr in $headers; do
 934         incs="$incs
 935 #include <$hdr>"
 936     done
 937     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 938 $incs
 939 const void *p = &(($struct *)0)->$member;
 940 EOF
 941 }
 942
 943 require(){
 944     name="$1"
 945     header="$2"
 946     func="$3"
 947     shift 3
 948     check_lib $header $func "$@" || die "ERROR: $name not found"
 949 }
 950
 951 require2(){
 952     name="$1"
 953     headers="$2"
 954     func="$3"
 955     shift 3
 956     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 957 }
 958
 959 require_cpp(){
 960     name="$1"
 961     headers="$2"
 962     classes="$3"
 963     shift 3
 964     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 965 }
 966
 967 require_pkg_config(){
 968     pkg="$1"
 969     check_pkg_config "$@" || die "ERROR: $pkg not found"
 970     add_cflags    $(get_safe ${pkg}_cflags)
 971     add_extralibs $(get_safe ${pkg}_libs)
 972 }
 973
 974 check_host_cc(){
 975     log check_host_cc "$@"
 976     cat > $TMPC
 977     log_file $TMPC
 978     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 979 }
 980
 981 check_host_cflags(){
 982     log check_host_cflags "$@"
 983     check_host_cc "$@" <<EOF && append host_cflags "$@"
 984 int x;
 985 EOF
 986 }
 987
 988 apply(){
 989     file=$1
 990     shift
 991     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 992 }
 993
 994 cp_if_changed(){
 995     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
 996     mkdir -p "$(dirname $2)"
 997     cp -f "$1" "$2"
 998 }
 999
1000 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1001 # system-dependent things.
1002
1003 COMPONENT_LIST="
1004     bsfs
1005     decoders
1006     demuxers
1007     encoders
1008     filters
1009     hwaccels
1010     indevs
1011     muxers
1012     outdevs
1013     parsers
1014     protocols
1015 "
1016
1017 PROGRAM_LIST="
1018     ffplay
1019     ffprobe
1020     ffserver
1021     ffmpeg
1022 "
1023
1024 CONFIG_LIST="
1025     $COMPONENT_LIST
1026     $PROGRAM_LIST
1027     ac3dsp
1028     avcodec
1029     avdevice
1030     avfilter
1031     avformat
1032     avresample
1033     avisynth
1034     bzlib
1035     crystalhd
1036     dct
1037     doc
1038     dwt
1039     dxva2
1040     fast_unaligned
1041     fastdiv
1042     fft
1043     fontconfig
1044     frei0r
1045     gnutls
1046     gpl
1047     gray
1048     hardcoded_tables
1049     libaacplus
1050     libass
1051     libbluray
1052     libcdio
1053     libcelt
1054     libdc1394
1055     libfaac
1056     libfreetype
1057     libgsm
1058     libilbc
1059     libmodplug
1060     libmp3lame
1061     libnut
1062     libopencore_amrnb
1063     libopencore_amrwb
1064     libopencv
1065     libopenjpeg
1066     libpulse
1067     librtmp
1068     libschroedinger
1069     libspeex
1070     libstagefright_h264
1071     libtheora
1072     libutvideo
1073     libv4l2
1074     libvo_aacenc
1075     libvo_amrwbenc
1076     libvorbis
1077     libvpx
1078     libx264
1079     libxavs
1080     libxvid
1081     lsp
1082     mdct
1083     memalign_hack
1084     memory_poisoning
1085     mpegaudiodsp
1086     network
1087     nonfree
1088     openal
1089     openssl
1090     pic
1091     postproc
1092     rdft
1093     rtpdec
1094     runtime_cpudetect
1095     safe_bitstream_reader
1096     shared
1097     sinewin
1098     small
1099     sram
1100     static
1101     swresample
1102     swscale
1103     swscale_alpha
1104     thumb
1105     vaapi
1106     vda
1107     vdpau
1108     version3
1109     xmm_clobber_test
1110     x11grab
1111     zlib
1112 "
1113
1114 THREADS_LIST='
1115     pthreads
1116     w32threads
1117     os2threads
1118 '
1119
1120 ARCH_LIST='
1121     alpha
1122     arm
1123     avr32
1124     avr32_ap
1125     avr32_uc
1126     bfin
1127     ia64
1128     m68k
1129     mips
1130     mips64
1131     parisc
1132     ppc
1133     ppc64
1134     s390
1135     sh4
1136     sparc
1137     sparc64
1138     tomi
1139     x86
1140     x86_32
1141     x86_64
1142 '
1143
1144 ARCH_EXT_LIST='
1145     altivec
1146     amd3dnow
1147     amd3dnowext
1148     armv5te
1149     armv6
1150     armv6t2
1151     armvfp
1152     avx
1153     mmi
1154     mmx
1155     mmx2
1156     neon
1157     ppc4xx
1158     sse
1159     ssse3
1160     vfpv3
1161     vis
1162     mipsfpu
1163     mips32r2
1164     mipsdspr1
1165     mipsdspr2
1166 '
1167
1168 HAVE_LIST_PUB='
1169     bigendian
1170     fast_unaligned
1171 '
1172
1173 HAVE_LIST="
1174     $ARCH_EXT_LIST
1175     $HAVE_LIST_PUB
1176     $THREADS_LIST
1177     aligned_malloc
1178     aligned_stack
1179     alsa_asoundlib_h
1180     altivec_h
1181     arpa_inet_h
1182     asm_mod_y
1183     asm_types_h
1184     attribute_may_alias
1185     attribute_packed
1186     cbrtf
1187     clock_gettime
1188     closesocket
1189     cmov
1190     dcbzl
1191     dev_bktr_ioctl_bt848_h
1192     dev_bktr_ioctl_meteor_h
1193     dev_ic_bt8xx_h
1194     dev_video_bktr_ioctl_bt848_h
1195     dev_video_meteor_ioctl_meteor_h
1196     dlfcn_h
1197     dlopen
1198     dos_paths
1199     dxva_h
1200     ebp_available
1201     ebx_available
1202     exp2
1203     exp2f
1204     fast_64bit
1205     fast_clz
1206     fast_cmov
1207     fcntl
1208     fork
1209     getaddrinfo
1210     gethrtime
1211     GetProcessAffinityMask
1212     GetProcessMemoryInfo
1213     GetProcessTimes
1214     GetSystemTimeAsFileTime
1215     getrusage
1216     gettimeofday
1217     glob
1218     gnu_as
1219     ibm_asm
1220     inet_aton
1221     inline_asm
1222     isatty
1223     isinf
1224     isnan
1225     jack_port_get_latency_range
1226     kbhit
1227     ldbrx
1228     libdc1394_1
1229     libdc1394_2
1230     llrint
1231     llrintf
1232     local_aligned_16
1233     local_aligned_8
1234     localtime_r
1235     log2
1236     log2f
1237     loongson
1238     lrint
1239     lrintf
1240     lzo1x_999_compress
1241     machine_ioctl_bt848_h
1242     machine_ioctl_meteor_h
1243     makeinfo
1244     malloc_h
1245     MapViewOfFile
1246     memalign
1247     mkstemp
1248     mmap
1249     nanosleep
1250     netinet_sctp_h
1251     PeekNamedPipe
1252     poll_h
1253     posix_memalign
1254     pthread_cancel
1255     round
1256     roundf
1257     sched_getaffinity
1258     sdl
1259     sdl_video_size
1260     setmode
1261     setrlimit
1262     Sleep
1263     sndio_h
1264     socklen_t
1265     soundcard_h
1266     strerror_r
1267     strptime
1268     struct_addrinfo
1269     struct_group_source_req
1270     struct_ip_mreq_source
1271     struct_ipv6_mreq
1272     struct_pollfd
1273     struct_rusage_ru_maxrss
1274     struct_sockaddr_in6
1275     struct_sockaddr_sa_len
1276     struct_sockaddr_storage
1277     struct_v4l2_frmivalenum_discrete
1278     symver
1279     symver_asm_label
1280     symver_gnu_asm
1281     sysconf
1282     sysctl
1283     sys_mman_h
1284     sys_param_h
1285     sys_resource_h
1286     sys_select_h
1287     sys_soundcard_h
1288     sys_time_h
1289     sys_videoio_h
1290     termios_h
1291     threads
1292     trunc
1293     truncf
1294     unistd_h
1295     usleep
1296     vfp_args
1297     VirtualAlloc
1298     windows_h
1299     winsock2_h
1300     xform_asm
1301     xmm_clobbers
1302     yasm
1303 "
1304
1305 # options emitted with CONFIG_ prefix but not available on command line
1306 CONFIG_EXTRA="
1307     aandct
1308     avutil
1309     golomb
1310     gplv3
1311     h264chroma
1312     h264dsp
1313     h264pred
1314     h264qpel
1315     huffman
1316     lgplv3
1317     lpc
1318 "
1319
1320 CMDLINE_SELECT="
1321     $ARCH_EXT_LIST
1322     $CONFIG_LIST
1323     $THREADS_LIST
1324     asm
1325     coverage
1326     cross_compile
1327     debug
1328     extra_warnings
1329     logging
1330     optimizations
1331     stripping
1332     symver
1333     yasm
1334 "
1335
1336 PATHS_LIST='
1337     bindir
1338     datadir
1339     incdir
1340     libdir
1341     mandir
1342     prefix
1343     shlibdir
1344 '
1345
1346 CMDLINE_SET="
1347     $PATHS_LIST
1348     ar
1349     arch
1350     as
1351     assert_level
1352     build_suffix
1353     cc
1354     cpu
1355     cross_prefix
1356     cxx
1357     dep_cc
1358     extra_version
1359     host_cc
1360     host_cflags
1361     host_ldflags
1362     host_libs
1363     host_os
1364     install
1365     ld
1366     logfile
1367     malloc_prefix
1368     nm
1369     optflags
1370     pkg_config
1371     postproc_version
1372     progs_suffix
1373     random_seed
1374     samples
1375     strip
1376     sysinclude
1377     sysroot
1378     target_exec
1379     target_os
1380     target_path
1381     valgrind
1382     yasmexe
1383 "
1384
1385 CMDLINE_APPEND="
1386     extra_cflags
1387     extra_cxxflags
1388 "
1389
1390 # code dependency declarations
1391
1392 # architecture extensions
1393
1394 armv5te_deps="arm"
1395 armv6_deps="arm"
1396 armv6t2_deps="arm"
1397 armvfp_deps="arm"
1398 neon_deps="arm"
1399 vfpv3_deps="armvfp"
1400
1401 mipsfpu_deps="mips"
1402 mips32r2_deps="mips"
1403 mipsdspr1_deps="mips"
1404 mipsdspr2_deps="mips"
1405 mmi_deps="mips"
1406
1407 altivec_deps="ppc"
1408 ppc4xx_deps="ppc"
1409
1410 vis_deps="sparc"
1411
1412 x86_64_suggest="cmov fast_cmov"
1413 amd3dnow_deps="mmx"
1414 amd3dnowext_deps="amd3dnow"
1415 mmx_deps="x86"
1416 mmx2_deps="mmx"
1417 sse_deps="mmx"
1418 ssse3_deps="sse"
1419 avx_deps="ssse3"
1420
1421 aligned_stack_if_any="ppc x86"
1422 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1423 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1424 fast_unaligned_if_any="armv6 ppc x86"
1425
1426 inline_asm_deps="!tms470"
1427 need_memalign="altivec neon sse"
1428
1429 symver_if_any="symver_asm_label symver_gnu_asm"
1430
1431 # subsystems
1432 dct_select="rdft"
1433 mdct_select="fft"
1434 rdft_select="fft"
1435 mpegaudiodsp_select="dct"
1436
1437 # decoders / encoders / hardware accelerators
1438 aac_decoder_select="mdct sinewin"
1439 aac_encoder_select="mdct sinewin"
1440 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1441 ac3_decoder_select="mdct ac3dsp ac3_parser"
1442 ac3_encoder_select="mdct ac3dsp"
1443 ac3_fixed_encoder_select="mdct ac3dsp"
1444 alac_encoder_select="lpc"
1445 amrnb_decoder_select="lsp"
1446 amrwb_decoder_select="lsp"
1447 amv_encoder_select="aandct"
1448 atrac1_decoder_select="mdct sinewin"
1449 atrac3_decoder_select="mdct"
1450 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1451 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1452 cavs_decoder_select="golomb"
1453 cook_decoder_select="mdct sinewin"
1454 cscd_decoder_suggest="zlib"
1455 dca_decoder_select="mdct"
1456 dirac_decoder_select="dwt golomb"
1457 dnxhd_encoder_select="aandct"
1458 dxa_decoder_select="zlib"
1459 eac3_decoder_select="ac3_decoder"
1460 eac3_encoder_select="mdct ac3dsp"
1461 eamad_decoder_select="aandct"
1462 eatgq_decoder_select="aandct"
1463 eatqi_decoder_select="aandct"
1464 ffv1_decoder_select="golomb"
1465 flac_decoder_select="golomb"
1466 flac_encoder_select="golomb lpc"
1467 flashsv_decoder_select="zlib"
1468 flashsv_encoder_select="zlib"
1469 flashsv2_encoder_select="zlib"
1470 flashsv2_decoder_select="zlib"
1471 flv_decoder_select="h263_decoder"
1472 flv_encoder_select="h263_encoder"
1473 fraps_decoder_select="huffman"
1474 h261_encoder_select="aandct"
1475 h263_decoder_select="h263_parser"
1476 h263_encoder_select="aandct"
1477 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1478 h263i_decoder_select="h263_decoder"
1479 h263p_encoder_select="h263_encoder"
1480 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1481 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1482 h264_dxva2_hwaccel_deps="dxva2api_h"
1483 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1484 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1485 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1486 h264_vda_hwaccel_select="vda h264_decoder"
1487 h264_vdpau_decoder_select="vdpau h264_decoder"
1488 iac_decoder_select="fft mdct sinewin"
1489 imc_decoder_select="fft mdct sinewin"
1490 jpegls_decoder_select="golomb"
1491 jpegls_encoder_select="golomb"
1492 ljpeg_encoder_select="aandct"
1493 loco_decoder_select="golomb"
1494 mjpeg_encoder_select="aandct"
1495 mlp_decoder_select="mlp_parser"
1496 mp1_decoder_select="mpegaudiodsp"
1497 mp1float_decoder_select="mpegaudiodsp"
1498 mp2_decoder_select="mpegaudiodsp"
1499 mp2float_decoder_select="mpegaudiodsp"
1500 mp3_decoder_select="mpegaudiodsp"
1501 mp3adu_decoder_select="mpegaudiodsp"
1502 mp3adufloat_decoder_select="mpegaudiodsp"
1503 mp3float_decoder_select="mpegaudiodsp"
1504 mp3on4_decoder_select="mpegaudiodsp"
1505 mp3on4float_decoder_select="mpegaudiodsp"
1506 mpc7_decoder_select="mpegaudiodsp"
1507 mpc8_decoder_select="mpegaudiodsp"
1508 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1509 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1510 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1511 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1512 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1513 mpeg1video_encoder_select="aandct"
1514 mpeg2_crystalhd_decoder_select="crystalhd"
1515 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1516 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1517 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1518 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1519 mpeg2video_encoder_select="aandct"
1520 mpeg4_crystalhd_decoder_select="crystalhd"
1521 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1522 mpeg4_encoder_select="h263_encoder"
1523 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1524 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1525 msmpeg4_crystalhd_decoder_select="crystalhd"
1526 msmpeg4v1_decoder_select="h263_decoder"
1527 msmpeg4v1_encoder_select="h263_encoder"
1528 msmpeg4v2_decoder_select="h263_decoder"
1529 msmpeg4v2_encoder_select="h263_encoder"
1530 msmpeg4v3_decoder_select="h263_decoder"
1531 msmpeg4v3_encoder_select="h263_encoder"
1532 nellymoser_decoder_select="mdct sinewin"
1533 nellymoser_encoder_select="mdct sinewin"
1534 png_decoder_select="zlib"
1535 png_encoder_select="zlib"
1536 qcelp_decoder_select="lsp"
1537 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1538 ra_144_encoder_select="lpc"
1539 ralf_decoder_select="golomb"
1540 rv10_decoder_select="h263_decoder"
1541 rv10_encoder_select="h263_encoder"
1542 rv20_decoder_select="h263_decoder"
1543 rv20_encoder_select="h263_encoder"
1544 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1545 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1546 shorten_decoder_select="golomb"
1547 sipr_decoder_select="lsp"
1548 snow_decoder_select="dwt"
1549 snow_encoder_select="aandct dwt"
1550 sonic_decoder_select="golomb"
1551 sonic_encoder_select="golomb"
1552 sonic_ls_encoder_select="golomb"
1553 svq1_encoder_select="aandct"
1554 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1555 svq3_decoder_suggest="zlib"
1556 theora_decoder_select="vp3_decoder"
1557 tiff_decoder_suggest="zlib"
1558 tiff_encoder_suggest="zlib"
1559 tscc_decoder_select="zlib"
1560 twinvq_decoder_select="mdct lsp sinewin"
1561 vc1_crystalhd_decoder_select="crystalhd"
1562 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1563 vc1_dxva2_hwaccel_deps="dxva2api_h"
1564 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1565 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1566 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1567 vc1image_decoder_select="vc1_decoder"
1568 vorbis_decoder_select="mdct"
1569 vorbis_encoder_select="mdct"
1570 vp6_decoder_select="huffman"
1571 vp6a_decoder_select="vp6_decoder"
1572 vp6f_decoder_select="vp6_decoder"
1573 vp8_decoder_select="h264pred h264qpel"
1574 wmapro_decoder_select="mdct sinewin"
1575 wmav1_decoder_select="mdct sinewin"
1576 wmav1_encoder_select="mdct sinewin"
1577 wmav2_decoder_select="mdct sinewin"
1578 wmav2_encoder_select="mdct sinewin"
1579 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1580 wmv1_decoder_select="h263_decoder"
1581 wmv1_encoder_select="h263_encoder"
1582 wmv2_decoder_select="h263_decoder"
1583 wmv2_encoder_select="h263_encoder"
1584 wmv3_decoder_select="vc1_decoder"
1585 wmv3_crystalhd_decoder_select="crystalhd"
1586 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1587 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1588 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1589 wmv3image_decoder_select="wmv3_decoder"
1590 zerocodec_decoder_select="zlib"
1591 zlib_decoder_select="zlib"
1592 zlib_encoder_select="zlib"
1593 zmbv_decoder_select="zlib"
1594 zmbv_encoder_select="zlib"
1595
1596 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1597 vaapi_deps="va_va_h"
1598 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1599 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1600
1601 # parsers
1602 h264_parser_select="golomb h264dsp h264pred"
1603
1604 # external libraries
1605 libaacplus_encoder_deps="libaacplus"
1606 libcelt_decoder_deps="libcelt"
1607 libfaac_encoder_deps="libfaac"
1608 libgsm_decoder_deps="libgsm"
1609 libgsm_encoder_deps="libgsm"
1610 libgsm_ms_decoder_deps="libgsm"
1611 libgsm_ms_encoder_deps="libgsm"
1612 libilbc_decoder_deps="libilbc"
1613 libilbc_encoder_deps="libilbc"
1614 libmodplug_demuxer_deps="libmodplug"
1615 libmp3lame_encoder_deps="libmp3lame"
1616 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1617 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1618 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1619 libopenjpeg_decoder_deps="libopenjpeg"
1620 libopenjpeg_encoder_deps="libopenjpeg"
1621 libschroedinger_decoder_deps="libschroedinger"
1622 libschroedinger_encoder_deps="libschroedinger"
1623 libspeex_decoder_deps="libspeex"
1624 libspeex_encoder_deps="libspeex"
1625 libstagefright_h264_decoder_deps="libstagefright_h264"
1626 libtheora_encoder_deps="libtheora"
1627 libvo_aacenc_encoder_deps="libvo_aacenc"
1628 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1629 libvorbis_decoder_deps="libvorbis"
1630 libvorbis_encoder_deps="libvorbis"
1631 libvpx_decoder_deps="libvpx"
1632 libvpx_encoder_deps="libvpx"
1633 libx264_encoder_deps="libx264"
1634 libx264rgb_encoder_deps="libx264"
1635 libxavs_encoder_deps="libxavs"
1636 libxvid_encoder_deps="libxvid"
1637 libutvideo_decoder_deps="libutvideo"
1638 libutvideo_encoder_deps="libutvideo"
1639
1640 # demuxers / muxers
1641 ac3_demuxer_select="ac3_parser"
1642 asf_stream_muxer_select="asf_muxer"
1643 avisynth_demuxer_deps="avisynth"
1644 dirac_demuxer_select="dirac_parser"
1645 eac3_demuxer_select="ac3_parser"
1646 flac_demuxer_select="flac_parser"
1647 ipod_muxer_select="mov_muxer"
1648 libnut_demuxer_deps="libnut"
1649 libnut_muxer_deps="libnut"
1650 matroska_audio_muxer_select="matroska_muxer"
1651 matroska_demuxer_suggest="zlib bzlib"
1652 mov_demuxer_suggest="zlib"
1653 mp3_demuxer_select="mpegaudio_parser"
1654 mp4_muxer_select="mov_muxer"
1655 mpegts_muxer_select="adts_muxer latm_muxer"
1656 mpegtsraw_demuxer_select="mpegts_demuxer"
1657 mxf_d10_muxer_select="mxf_muxer"
1658 ogg_demuxer_select="golomb"
1659 psp_muxer_select="mov_muxer"
1660 rtp_demuxer_select="sdp_demuxer"
1661 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1662 rtsp_demuxer_select="http_protocol rtpdec"
1663 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1664 sap_demuxer_select="sdp_demuxer"
1665 sap_muxer_select="rtp_muxer rtp_protocol"
1666 sdp_demuxer_select="rtpdec"
1667 spdif_muxer_select="aac_parser"
1668 tg2_muxer_select="mov_muxer"
1669 tgp_muxer_select="mov_muxer"
1670 w64_demuxer_deps="wav_demuxer"
1671
1672 # indevs / outdevs
1673 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1674 alsa_outdev_deps="alsa_asoundlib_h"
1675 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1676 dshow_indev_deps="IBaseFilter"
1677 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1678 dv1394_indev_deps="dv1394 dv_demuxer"
1679 fbdev_indev_deps="linux_fb_h"
1680 iec61883_indev_deps="iec61883"
1681 jack_indev_deps="jack_jack_h sem_timedwait"
1682 lavfi_indev_deps="avfilter"
1683 libcdio_indev_deps="libcdio"
1684 libdc1394_indev_deps="libdc1394"
1685 libv4l2_indev_deps="libv4l2"
1686 openal_indev_deps="openal"
1687 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1688 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1689 pulse_indev_deps="libpulse"
1690 sdl_outdev_deps="sdl"
1691 sndio_indev_deps="sndio_h"
1692 sndio_outdev_deps="sndio_h"
1693 v4l_indev_deps="linux_videodev_h"
1694 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1695 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1696 vfwcap_indev_extralibs="-lavicap32"
1697 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1698
1699 # protocols
1700 bluray_protocol_deps="libbluray"
1701 gopher_protocol_deps="network"
1702 httpproxy_protocol_deps="network"
1703 httpproxy_protocol_select="tcp_protocol"
1704 http_protocol_deps="network"
1705 http_protocol_select="tcp_protocol"
1706 https_protocol_select="tls_protocol"
1707 librtmp_protocol_deps="librtmp"
1708 librtmpe_protocol_deps="librtmp"
1709 librtmps_protocol_deps="librtmp"
1710 librtmpt_protocol_deps="librtmp"
1711 librtmpte_protocol_deps="librtmp"
1712 mmsh_protocol_select="http_protocol"
1713 mmst_protocol_deps="network"
1714 rtmp_protocol_deps="!librtmp_protocol"
1715 rtmp_protocol_select="tcp_protocol"
1716 rtmphttp_protocol_deps="!librtmp_protocol"
1717 rtmphttp_protocol_select="http_protocol"
1718 rtmpt_protocol_deps="!librtmp_protocol"
1719 rtmpt_protocol_select="rtmphttp_protocol"
1720 rtp_protocol_select="udp_protocol"
1721 sctp_protocol_deps="network netinet_sctp_h"
1722 tcp_protocol_deps="network"
1723 tls_protocol_deps_any="openssl gnutls"
1724 tls_protocol_select="tcp_protocol"
1725 udp_protocol_deps="network"
1726
1727 # filters
1728 aconvert_filter_deps="swresample"
1729 amovie_filter_deps="avcodec avformat"
1730 aresample_filter_deps="swresample"
1731 ass_filter_deps="libass"
1732 asyncts_filter_deps="avresample"
1733 atempo_filter_deps="avcodec rdft"
1734 blackframe_filter_deps="gpl"
1735 boxblur_filter_deps="gpl"
1736 colormatrix_filter_deps="gpl"
1737 cropdetect_filter_deps="gpl"
1738 delogo_filter_deps="gpl"
1739 deshake_filter_deps="avcodec"
1740 drawtext_filter_deps="libfreetype"
1741 frei0r_filter_deps="frei0r dlopen"
1742 frei0r_filter_extralibs='$ldl'
1743 frei0r_src_filter_deps="frei0r dlopen"
1744 frei0r_src_filter_extralibs='$ldl'
1745 hqdn3d_filter_deps="gpl"
1746 movie_filter_deps="avcodec avformat"
1747 mp_filter_deps="gpl avcodec swscale postproc"
1748 mptestsrc_filter_deps="gpl"
1749 negate_filter_deps="lut_filter"
1750 resample_filter_deps="avresample"
1751 ocv_filter_deps="libopencv"
1752 pan_filter_deps="swresample"
1753 removelogo_filter_deps="avcodec avformat swscale"
1754 scale_filter_deps="swscale"
1755 select_filter_deps="avcodec"
1756 super2xsai_filter_deps="gpl"
1757 tinterlace_filter_deps="gpl"
1758 yadif_filter_deps="gpl"
1759
1760 # libraries
1761 avdevice_deps="avcodec avformat"
1762 avformat_deps="avcodec"
1763 postproc_deps="gpl"
1764
1765 # programs
1766 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1767 ffmpeg_select="buffersink_filter format_filter aformat_filter
1768                setpts_filter null_filter anull_filter abuffersink_filter"
1769 ffplay_deps="avcodec avformat swscale swresample sdl"
1770 ffplay_select="buffersink_filter rdft"
1771 ffprobe_deps="avcodec avformat"
1772 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1773 ffserver_extralibs='$ldl'
1774
1775 doc_deps="texi2html"
1776
1777 # tests
1778
1779 test_deps(){
1780     suf1=$1
1781     suf2=$2
1782     shift 2
1783     for v; do
1784         dep=${v%=*}
1785         tests=${v#*=}
1786         for name in ${tests}; do
1787             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1788         done
1789     done
1790 }
1791
1792 mxf_d10_test_deps="avfilter"
1793 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1794
1795 test_deps _muxer _demuxer                                               \
1796     aiff                                                                \
1797     pcm_alaw=alaw                                                       \
1798     asf                                                                 \
1799     au                                                                  \
1800     avi                                                                 \
1801     dv=dv_fmt                                                           \
1802     ffm                                                                 \
1803     flv=flv_fmt                                                         \
1804     gxf                                                                 \
1805     matroska=mkv                                                        \
1806     mmf                                                                 \
1807     mov="mov ismv"                                                      \
1808     pcm_mulaw=mulaw                                                     \
1809     mxf="mxf mxf_d10"                                                   \
1810     nut                                                                 \
1811     ogg="ogg ogg_vp3"                                                   \
1812     rawvideo=pixfmt                                                     \
1813     rm                                                                  \
1814     swf                                                                 \
1815     mpegts=ts                                                           \
1816     voc                                                                 \
1817     wav                                                                 \
1818     yuv4mpegpipe=yuv4mpeg                                               \
1819
1820 colormatrix1_test_deps="colormatrix_filter"
1821 colormatrix2_test_deps="colormatrix_filter"
1822 flashsv2_test_deps="zlib"
1823 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1824 mpng_test_deps="zlib"
1825 pp_test_deps="mp_filter"
1826 pp2_test_deps="mp_filter"
1827 pp3_test_deps="mp_filter"
1828 pp4_test_deps="mp_filter"
1829 pp5_test_deps="mp_filter"
1830 pp6_test_deps="mp_filter"
1831 zlib_test_deps="zlib"
1832 zmbv_test_deps="zlib"
1833
1834 # default parameters
1835
1836 logfile="config.log"
1837
1838 # installation paths
1839 prefix_default="/usr/local"
1840 bindir_default='${prefix}/bin'
1841 datadir_default='${prefix}/share/ffmpeg'
1842 incdir_default='${prefix}/include'
1843 libdir_default='${prefix}/lib'
1844 mandir_default='${prefix}/share/man'
1845 shlibdir_default="$libdir_default"
1846 postproc_version_default="current"
1847
1848 # toolchain
1849 ar_default="ar"
1850 cc_default="gcc"
1851 cxx_default="g++"
1852 cc_version=\"unknown\"
1853 host_cc_default="gcc"
1854 install="install"
1855 ln_s="ln -sf"
1856 nm_default="nm"
1857 objformat="elf"
1858 pkg_config_default=pkg-config
1859 ranlib="ranlib"
1860 strip_default="strip"
1861 yasmexe_default="yasm"
1862
1863 nm_opts='-g'
1864 nogas=":"
1865
1866 # machine
1867 arch_default=$(uname -m)
1868 cpu="generic"
1869
1870 # OS
1871 target_os_default=$(tolower $(uname -s))
1872 host_os=$target_os_default
1873
1874 # alternative libpostproc version
1875 ALT_PP_VER_MAJOR=51
1876 ALT_PP_VER_MINOR=2
1877 ALT_PP_VER_MICRO=101
1878 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1879
1880 # configurable options
1881 enable $PROGRAM_LIST
1882
1883 enable avcodec
1884 enable avdevice
1885 enable avfilter
1886 enable avformat
1887 enable avutil
1888 enable postproc
1889 enable stripping
1890 enable swresample
1891 enable swscale
1892
1893 enable asm
1894 enable debug
1895 enable doc
1896 enable fastdiv
1897 enable network
1898 enable optimizations
1899 enable safe_bitstream_reader
1900 enable static
1901 enable swscale_alpha
1902
1903 # build settings
1904 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1905 FFSERVERLDFLAGS=-Wl,-E
1906 LIBPREF="lib"
1907 LIBSUF=".a"
1908 FULLNAME='$(NAME)$(BUILDSUF)'
1909 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1910 SLIBPREF="lib"
1911 SLIBSUF=".so"
1912 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1913 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1914 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1915 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1916 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1917 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1918
1919 AS_O='-o $@'
1920 CC_O='-o $@'
1921 CXX_O='-o $@'
1922
1923 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1924 host_libs='-lm'
1925
1926 target_path='$(CURDIR)'
1927
1928 # since the object filename is not given with the -MM flag, the compiler
1929 # is only able to print the basename, and we must add the path ourselves
1930 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1931 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1932
1933 # find source path
1934 if test -f configure; then
1935     source_path=.
1936 else
1937     source_path=$(cd $(dirname "$0"); pwd)
1938     echo "$source_path" | grep -q '[[:blank:]]' &&
1939         die "Out of tree builds are impossible with whitespace in source path."
1940     test -e "$source_path/config.h" &&
1941         die "Out of tree builds are impossible with config.h in source dir."
1942 fi
1943
1944 for v in "$@"; do
1945     r=${v#*=}
1946     l=${v%"$r"}
1947     r=$(sh_quote "$r")
1948     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1949 done
1950
1951 find_things(){
1952     thing=$1
1953     pattern=$2
1954     file=$source_path/$3
1955     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1956 }
1957
1958 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1959 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1960 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1961 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1962 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1963 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1964 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1965 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1966 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1967 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1968 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1969
1970 ALL_COMPONENTS="
1971     $BSF_LIST
1972     $DECODER_LIST
1973     $DEMUXER_LIST
1974     $ENCODER_LIST
1975     $FILTER_LIST
1976     $HWACCEL_LIST
1977     $INDEV_LIST
1978     $MUXER_LIST
1979     $OUTDEV_LIST
1980     $PARSER_LIST
1981     $PROTOCOL_LIST
1982 "
1983
1984 find_tests(){
1985     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1986 }
1987
1988 LAVF_FATE_TESTS=$(find_tests lavf-fate)
1989 LAVF_TESTS=$(find_tests lavf)
1990 LAVFI_TESTS=$(find_tests lavfi)
1991 SEEK_TESTS=$(find_tests seek seek_)
1992
1993 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
1994
1995 for n in $COMPONENT_LIST; do
1996     v=$(toupper ${n%s})_LIST
1997     eval enable \$$v
1998     eval ${n}_if_any="\$$v"
1999 done
2000
2001 enable $ARCH_EXT_LIST $ALL_TESTS
2002
2003 die_unknown(){
2004     echo "Unknown option \"$1\"."
2005     echo "See $0 --help for available options."
2006     exit 1
2007 }
2008
2009 show_list() {
2010     suffix=_$1
2011     shift
2012     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2013     exit 0
2014 }
2015
2016 rand_list(){
2017     IFS=', '
2018     set -- $*
2019     unset IFS
2020     for thing; do
2021         comp=${thing%:*}
2022         prob=${thing#$comp}
2023         prob=${prob#:}
2024         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2025         echo "prob ${prob:-0.5}"
2026         printf '%s\n' $comp
2027     done
2028 }
2029
2030 do_random(){
2031     action=$1
2032     shift
2033     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2034     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2035 }
2036
2037 for opt do
2038     optval="${opt#*=}"
2039     case "$opt" in
2040     --extra-ldflags=*) add_ldflags $optval
2041     ;;
2042     --extra-libs=*) add_extralibs $optval
2043     ;;
2044     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2045     ;;
2046     --enable-debug=*) debuglevel="$optval"
2047     ;;
2048     --disable-everything)
2049     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2050     ;;
2051     --enable-random|--disable-random)
2052     action=${opt%%-random}
2053     do_random ${action#--} $COMPONENT_LIST
2054     ;;
2055     --enable-random=*|--disable-random=*)
2056     action=${opt%%-random=*}
2057     do_random ${action#--} $optval
2058     ;;
2059     --enable-*=*|--disable-*=*)
2060     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2061     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2062     eval list=\$$(toupper $thing)_LIST
2063     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2064     $action $(filter "$name" $list)
2065     ;;
2066     --enable-?*|--disable-?*)
2067     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2068     if is_in $option $COMPONENT_LIST; then
2069         test $action = disable && action=unset
2070         eval $action \$$(toupper ${option%s})_LIST
2071     elif is_in $option $CMDLINE_SELECT; then
2072         $action $option
2073     else
2074         die_unknown $opt
2075     fi
2076     ;;
2077     --list-*)
2078         NAME="${opt#--list-}"
2079         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2080         NAME=${NAME%s}
2081         eval show_list $NAME \$$(toupper $NAME)_LIST
2082     ;;
2083     --help|-h) show_help
2084     ;;
2085     *)
2086     optname="${opt%%=*}"
2087     optname="${optname#--}"
2088     optname=$(echo "$optname" | sed 's/-/_/g')
2089     if is_in $optname $CMDLINE_SET; then
2090         eval $optname='$optval'
2091     elif is_in $optname $CMDLINE_APPEND; then
2092         append $optname "$optval"
2093     else
2094          die_unknown $opt
2095     fi
2096     ;;
2097     esac
2098 done
2099
2100 disabled logging && logfile=/dev/null
2101
2102 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2103 set >> $logfile
2104
2105 test -n "$cross_prefix" && enable cross_compile
2106
2107 if enabled cross_compile; then
2108     test -n "$arch" && test -n "$target_os" ||
2109         die "Must specify target arch and OS when cross-compiling"
2110 fi
2111
2112 set_default arch target_os postproc_version
2113
2114 # Check if we should build alternative libpostproc version instead of current
2115 if   test "$postproc_version" = $ALT_PP_VER; then
2116   LIBPOSTPROC_VERSION=$ALT_PP_VER
2117   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2118   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2119   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2120 elif test "$postproc_version" != current; then
2121   die "Invalid argument to --postproc-version. See --help output."
2122 fi
2123
2124 ar_default="${cross_prefix}${ar_default}"
2125 cc_default="${cross_prefix}${cc_default}"
2126 cxx_default="${cross_prefix}${cxx_default}"
2127 nm_default="${cross_prefix}${nm_default}"
2128 pkg_config_default="${cross_prefix}${pkg_config_default}"
2129 ranlib="${cross_prefix}${ranlib}"
2130 strip_default="${cross_prefix}${strip_default}"
2131
2132 sysinclude_default="${sysroot}/usr/include"
2133
2134 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2135 enabled cross_compile || host_cc_default=$cc
2136 set_default host_cc
2137
2138 if ! $pkg_config --version >/dev/null 2>&1; then
2139     warn "$pkg_config not found, library detection may fail."
2140     pkg_config=false
2141 fi
2142
2143 exesuf() {
2144     case $1 in
2145         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2146     esac
2147 }
2148
2149 EXESUF=$(exesuf $target_os)
2150 HOSTEXESUF=$(exesuf $host_os)
2151
2152 # set temporary file name
2153 : ${TMPDIR:=$TEMPDIR}
2154 : ${TMPDIR:=$TMP}
2155 : ${TMPDIR:=/tmp}
2156
2157 if ! check_cmd mktemp -u XXXXXX; then
2158     # simple replacement for missing mktemp
2159     # NOT SAFE FOR GENERAL USE
2160     mktemp(){
2161         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2162     }
2163 fi
2164
2165 tmpfile(){
2166     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2167         (set -C; exec > $tmp) 2>/dev/null ||
2168         die "Unable to create temporary file in $TMPDIR."
2169     append TMPFILES $tmp
2170     eval $1=$tmp
2171 }
2172
2173 trap 'rm -f -- $TMPFILES' EXIT
2174
2175 tmpfile TMPASM .asm
2176 tmpfile TMPC   .c
2177 tmpfile TMPCPP .cpp
2178 tmpfile TMPE   $EXESUF
2179 tmpfile TMPH   .h
2180 tmpfile TMPO   .o
2181 tmpfile TMPS   .S
2182 tmpfile TMPSH  .sh
2183 tmpfile TMPV   .ver
2184
2185 unset -f mktemp
2186
2187 chmod +x $TMPE
2188
2189 # make sure we can execute files in $TMPDIR
2190 cat > $TMPSH 2>> $logfile <<EOF
2191 #! /bin/sh
2192 EOF
2193 chmod +x $TMPSH >> $logfile 2>&1
2194 if ! $TMPSH >> $logfile 2>&1; then
2195     cat <<EOF
2196 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2197 variable to another directory and make sure that it is not mounted noexec.
2198 EOF
2199     die "Sanity test failed."
2200 fi
2201
2202 filter_asflags=echo
2203 filter_cflags=echo
2204 filter_cppflags=echo
2205
2206 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2207     cc_type=llvm_gcc
2208     cc_version=__VERSION__
2209     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2210     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2211     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2212     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2213     speed_cflags='-O3'
2214     size_cflags='-Os'
2215 elif $cc -v 2>&1 | grep -qi ^gcc; then
2216     cc_type=gcc
2217     cc_version=__VERSION__
2218     gcc_version=$($cc --version | head -n1)
2219     gcc_basever=$($cc -dumpversion)
2220     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2221     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2222     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2223     if ! $cc -dumpversion | grep -q '^2\.'; then
2224         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2225         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2226     fi
2227     speed_cflags='-O3'
2228     size_cflags='-Os'
2229 elif $cc --version 2>/dev/null | grep -q Intel; then
2230     cc_type=icc
2231     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
2232     cc_ident=$($cc --version | head -n1)
2233     icc_version=$($cc -dumpversion)
2234     CC_DEPFLAGS='-MMD'
2235     AS_DEPFLAGS='-MMD'
2236     speed_cflags='-O3'
2237     size_cflags='-Os'
2238     noopt_cflags='-O1'
2239 elif $cc -v 2>&1 | grep -q xlc; then
2240     cc_type=xlc
2241     cc_version="AV_STRINGIFY(__IBMC__)"
2242     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2243     speed_cflags='-O5'
2244     size_cflags='-O5 -qcompact'
2245 elif $cc -V 2>/dev/null | grep -q Compaq; then
2246     cc_type=ccc
2247     cc_version="AV_STRINGIFY(__DECC_VER)"
2248     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2249     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2250     debuglevel=3
2251     add_ldflags -Wl,-z,now # calls to libots crash without this
2252     speed_cflags='-fast'
2253     size_cflags='-O1'
2254 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2255     test -d "$sysroot" || die "No valid sysroot specified."
2256     cc_type=armcc
2257     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
2258     cc_ident=$($cc --vsn | head -n1)
2259     armcc_conf="$PWD/armcc.conf"
2260     $cc --arm_linux_configure                 \
2261         --arm_linux_config_file="$armcc_conf" \
2262         --configure_sysroot="$sysroot"        \
2263         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2264         die "Error creating armcc configuration file."
2265     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2266     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2267     as_default="${cross_prefix}gcc"
2268     CC_DEPFLAGS='-MMD'
2269     AS_DEPFLAGS='-MMD'
2270     speed_cflags='-O3'
2271     size_cflags='-Os'
2272     filter_asflags="filter_out -W${armcc_opt}*"
2273 elif $cc -version 2>/dev/null | grep -q TMS470; then
2274     cc_type=tms470
2275     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
2276     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2277     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2278     CC_O='-fr=$(@D)'
2279     as_default="${cross_prefix}gcc"
2280     ld_default="${cross_prefix}gcc"
2281     TMPO=$(basename $TMPC .c).o
2282     append TMPFILES $TMPO
2283     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2284     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2285     AS_DEPFLAGS='-MMD'
2286     speed_cflags='-O3 -mf=5'
2287     size_cflags='-O3 -mf=2'
2288     filter_cflags=tms470_flags
2289     tms470_flags(){
2290         for flag; do
2291             case $flag in
2292                 -march=*|-mcpu=*)
2293                     case "${flag#*=}" in
2294                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
2295                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
2296                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
2297                         armv6*|arm11*)          echo -mv=6   ;;
2298                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2299                                                 echo -mv=5e  ;;
2300                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2301                     esac
2302                     ;;
2303                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2304                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
2305                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2306                 -msoft-float)   echo --float_support=vfplib       ;;
2307                 -O[0-3]|-mf=*)  echo $flag                        ;;
2308                 -g)             echo -g -mn                       ;;
2309                 -pds=*)         echo $flag                        ;;
2310             esac
2311         done
2312     }
2313 elif $cc -v 2>&1 | grep -q clang; then
2314     cc_type=clang
2315     $cc -dM -E $TMPC | grep -q __clang_version__ &&
2316         cc_version=__clang_version__ || cc_version=__VERSION__
2317     cc_ident=$($cc --version | head -n1)
2318     CC_DEPFLAGS='-MMD'
2319     AS_DEPFLAGS='-MMD'
2320     speed_cflags='-O3'
2321     size_cflags='-Os'
2322 elif $cc -V 2>&1 | grep -q Sun; then
2323     cc_type=suncc
2324     cc_version="AV_STRINGIFY(__SUNPRO_C)"
2325     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2326     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2327     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2328     add_ldflags -xc99
2329     speed_cflags='-O5'
2330     size_cflags='-O5 -xspace'
2331     filter_cflags=suncc_flags
2332     suncc_flags(){
2333         for flag; do
2334             case $flag in
2335                 -march=*|-mcpu=*)
2336                     case "${flag#*=}" in
2337                         native)                   echo -xtarget=native       ;;
2338                         v9|niagara)               echo -xarch=sparc          ;;
2339                         ultrasparc)               echo -xarch=sparcvis       ;;
2340                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2341                         i586|pentium)             echo -xchip=pentium        ;;
2342                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2343                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2344                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2345                         pentium4*)          echo -xtarget=pentium4           ;;
2346                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2347                         *-sse3)             echo -xarch=sse3                 ;;
2348                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
2349                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2350                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2351                         k8|opteron|athlon64|athlon-fx)
2352                                                   echo -xarch=sse2a          ;;
2353                         athlon*)                  echo -xarch=pentium_proa   ;;
2354                     esac
2355                     ;;
2356                 -std=c99)             echo -xc99              ;;
2357                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
2358                 -fPIC)                echo -KPIC -xcode=pic32 ;;
2359                 -W*,*)                echo $flag              ;;
2360                 -f*-*|-W*)                                    ;;
2361                 *)                    echo $flag              ;;
2362             esac
2363         done
2364     }
2365 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2366     cc_type=pathscale
2367     cc_version=__PATHSCALE__
2368     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2369     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2370     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2371     speed_cflags='-O2'
2372     size_cflags='-Os'
2373     filter_cflags='filter_out -Wdisabled-optimization'
2374 elif $cc -v 2>&1 | grep -q Open64; then
2375     cc_type=open64
2376     cc_version=__OPEN64__
2377     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2378     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2379     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2380     speed_cflags='-O2'
2381     size_cflags='-Os'
2382     filter_cflags='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2383 elif $cc -V 2>&1 | grep -q Portland; then
2384     cc_type=pgi
2385     cc_version='AV_STRINGIFY(__PGIC__.__PGIC_MINOR__.__PGIC_PATCHLEVEL__)'
2386     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2387     opt_common='-alias=ansi -Mlre -Mpre'
2388     speed_cflags="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2389     size_cflags="-O2 -Munroll=c:1 $opt_common"
2390     noopt_cflags="-O1"
2391     filter_cflags=pgi_flags
2392     pgi_flags(){
2393         for flag; do
2394             case $flag in
2395                 -fomit-frame-pointer) echo -Mnoframe ;;
2396                 -g)                   echo -gopt ;;
2397                 *)                    echo $flag ;;
2398             esac
2399         done
2400     }
2401 fi
2402
2403 test -n "$cc_type" && enable $cc_type ||
2404     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2405
2406 : ${as_default:=$cc}
2407 : ${dep_cc_default:=$cc}
2408 : ${ld_default:=$cc}
2409 set_default ar as dep_cc ld
2410
2411 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2412 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2413 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2414
2415 add_cflags $extra_cflags
2416 add_cxxflags $extra_cxxflags
2417 add_asflags $extra_cflags
2418
2419 if test -n "$sysroot"; then
2420     case "$cc_type" in
2421         gcc|llvm_gcc|clang)
2422             add_cppflags --sysroot="$sysroot"
2423             add_ldflags --sysroot="$sysroot"
2424         ;;
2425         tms470)
2426             add_cppflags -I"$sysinclude"
2427             add_ldflags  --sysroot="$sysroot"
2428         ;;
2429     esac
2430 fi
2431
2432 if test "$cpu" = host; then
2433     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2434
2435     case "$cc_type" in
2436         gcc|llvm_gcc)
2437             check_native(){
2438                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2439                 sed -n "/cc1.*$1=/{
2440                             s/.*$1=\\([^ ]*\\).*/\\1/
2441                             p
2442                             q
2443                         }" $TMPE
2444             }
2445             cpu=$(check_native -march || check_native -mcpu)
2446         ;;
2447     esac
2448
2449     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2450 fi
2451
2452 # Deal with common $arch aliases
2453 case "$arch" in
2454     arm*|iPad*)
2455         arch="arm"
2456     ;;
2457     mips|mipsel|IP*)
2458         arch="mips"
2459     ;;
2460     mips64*)
2461         arch="mips"
2462         subarch="mips64"
2463     ;;
2464     parisc|hppa)
2465         arch="parisc"
2466     ;;
2467     parisc64|hppa64)
2468         arch="parisc"
2469         subarch="parisc64"
2470     ;;
2471     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2472         arch="ppc"
2473     ;;
2474     s390|s390x)
2475         arch="s390"
2476     ;;
2477     sh4|sh)
2478         arch="sh4"
2479     ;;
2480     sun4u|sparc64)
2481         arch="sparc"
2482         subarch="sparc64"
2483     ;;
2484     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2485         arch="x86"
2486     ;;
2487 esac
2488
2489 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2490 enable $arch
2491
2492 # Add processor-specific flags
2493 if test "$cpu" = generic; then
2494     : do nothing
2495 elif enabled ppc; then
2496
2497     case $(tolower $cpu) in
2498         601|ppc601|powerpc601)
2499             cpuflags="-mcpu=601"
2500             disable altivec
2501         ;;
2502         603*|ppc603*|powerpc603*)
2503             cpuflags="-mcpu=603"
2504             disable altivec
2505         ;;
2506         604*|ppc604*|powerpc604*)
2507             cpuflags="-mcpu=604"
2508             disable altivec
2509         ;;
2510         g3|75*|ppc75*|powerpc75*)
2511             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2512             disable altivec
2513         ;;
2514         g4|745*|ppc745*|powerpc745*)
2515             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2516         ;;
2517         74*|ppc74*|powerpc74*)
2518             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2519         ;;
2520         g5|970|ppc970|powerpc970)
2521             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2522         ;;
2523         power[3-7]*)
2524             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2525         ;;
2526         cell)
2527             cpuflags="-mcpu=cell"
2528             enable ldbrx
2529         ;;
2530         e500v2)
2531             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2532             disable altivec
2533         ;;
2534         e500)
2535             cpuflags="-mcpu=8540 -mhard-float"
2536             disable altivec
2537         ;;
2538     esac
2539
2540 elif enabled x86; then
2541
2542     case $cpu in
2543         i[345]86|pentium)
2544             cpuflags="-march=$cpu"
2545             disable mmx
2546         ;;
2547         # targets that do NOT support conditional mov (cmov)
2548         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2549             cpuflags="-march=$cpu"
2550             disable cmov
2551         ;;
2552         # targets that do support conditional mov (cmov)
2553         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2554             cpuflags="-march=$cpu"
2555             enable cmov
2556             enable fast_cmov
2557         ;;
2558         # targets that do support conditional mov but on which it's slow
2559         pentium4|pentium4m|prescott|nocona)
2560             cpuflags="-march=$cpu"
2561             enable cmov
2562             disable fast_cmov
2563         ;;
2564     esac
2565
2566 elif enabled sparc; then
2567
2568     case $cpu in
2569         niagara)
2570             cpuflags="-mcpu=$cpu"
2571             disable vis
2572         ;;
2573         sparc64)
2574             cpuflags="-mcpu=v9"
2575         ;;
2576     esac
2577
2578 elif enabled arm; then
2579
2580     case $cpu in
2581         armv*)
2582             cpuflags="-march=$cpu"
2583             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2584         ;;
2585         *)
2586             cpuflags="-mcpu=$cpu"
2587             case $cpu in
2588                 cortex-a*)                               subarch=armv7a  ;;
2589                 cortex-r*)                               subarch=armv7r  ;;
2590                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2591                 arm11*)                                  subarch=armv6   ;;
2592                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2593                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2594             esac
2595         ;;
2596     esac
2597
2598 elif enabled alpha; then
2599
2600     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2601
2602 elif enabled bfin; then
2603
2604     cpuflags="-mcpu=$cpu"
2605
2606 elif enabled mips; then
2607
2608     cpuflags="-march=$cpu"
2609
2610     case $cpu in
2611         24kc)
2612             disable mipsfpu
2613             disable mipsdspr1
2614             disable mipsdspr2
2615         ;;
2616         24kf*)
2617             disable mipsdspr1
2618             disable mipsdspr2
2619         ;;
2620         24kec|34kc|1004kc)
2621             disable mipsfpu
2622             disable mipsdspr2
2623         ;;
2624         24kef*|34kf*|1004kf*)
2625             disable mipsdspr2
2626         ;;
2627         74kc)
2628             disable mipsfpu
2629         ;;
2630     esac
2631
2632 elif enabled avr32; then
2633
2634     case $cpu in
2635         ap7[02]0[0-2])
2636             subarch="avr32_ap"
2637             cpuflags="-mpart=$cpu"
2638         ;;
2639         ap)
2640             subarch="avr32_ap"
2641             cpuflags="-march=$cpu"
2642         ;;
2643         uc3[ab]*)
2644             subarch="avr32_uc"
2645             cpuflags="-mcpu=$cpu"
2646         ;;
2647         uc)
2648             subarch="avr32_uc"
2649             cpuflags="-march=$cpu"
2650         ;;
2651     esac
2652
2653 fi
2654
2655 add_cflags $cpuflags
2656 add_asflags $cpuflags
2657
2658 # compiler sanity check
2659 check_exec <<EOF
2660 int main(void){ return 0; }
2661 EOF
2662 if test "$?" != 0; then
2663     echo "$cc is unable to create an executable file."
2664     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2665         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2666         echo "Only do this if you know what cross compiling means."
2667     fi
2668     die "C compiler test failed."
2669 fi
2670
2671 add_cppflags -D_ISOC99_SOURCE
2672 add_cxxflags -D__STDC_CONSTANT_MACROS
2673 check_cflags -std=c99
2674 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2675 #include <stdlib.h>
2676 EOF
2677 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2678 #include <stdlib.h>
2679 EOF
2680
2681 check_host_cflags -std=c99
2682 check_host_cflags -Wall
2683
2684 case "$arch" in
2685     alpha|ia64|mips|parisc|sparc)
2686         spic=$shared
2687     ;;
2688     x86)
2689         subarch="x86_32"
2690         check_cc <<EOF && subarch="x86_64"
2691         int test[(int)sizeof(char*) - 7];
2692 EOF
2693         if test "$subarch" = "x86_64"; then
2694             spic=$shared
2695         fi
2696     ;;
2697     ppc)
2698         check_cc <<EOF && subarch="ppc64"
2699         int test[(int)sizeof(char*) - 7];
2700 EOF
2701     ;;
2702 esac
2703
2704 enable $subarch
2705 enabled spic && enable pic
2706
2707 # OS specific
2708 case $target_os in
2709     haiku)
2710         prefix_default="/boot/common"
2711         network_extralibs="-lnetwork"
2712         host_libs=
2713         ;;
2714     sunos)
2715         FFSERVERLDFLAGS=""
2716         SHFLAGS='-shared -Wl,-h,$$(@F)'
2717         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2718         network_extralibs="-lsocket -lnsl"
2719         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2720         # When using suncc to build, the Solaris linker will mark
2721         # an executable with each instruction set encountered by
2722         # the Solaris assembler.  As our libraries contain their own
2723         # guards for processor-specific code, instead suppress
2724         # generation of the HWCAPS ELF section on Solaris x86 only.
2725         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2726         nm_opts='-P -g'
2727         ;;
2728     netbsd)
2729         disable symver
2730         oss_indev_extralibs="-lossaudio"
2731         oss_outdev_extralibs="-lossaudio"
2732         ;;
2733     openbsd|bitrig)
2734         # On OpenBSD 4.5. the compiler does not use PIC unless
2735         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2736         # however the generated executable will not do anything
2737         # (simply quits with exit-code 1, no crash, no output).
2738         # Thus explicitly enable PIC here.
2739         enable pic
2740         disable symver
2741         SHFLAGS='-shared'
2742         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2743         oss_indev_extralibs="-lossaudio"
2744         oss_outdev_extralibs="-lossaudio"
2745         ;;
2746     dragonfly)
2747         disable symver
2748         ;;
2749     freebsd)
2750         ;;
2751     bsd/os)
2752         add_extralibs -lpoll -lgnugetopt
2753         strip="strip -d"
2754         ;;
2755     darwin)
2756         gas="gas-preprocessor.pl $cc"
2757         enabled ppc && add_asflags -force_cpusubtype_ALL
2758         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2759         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2760         strip="${strip} -x"
2761         add_ldflags -Wl,-dynamic,-search_paths_first
2762         SLIBSUF=".dylib"
2763         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2764         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2765         FFSERVERLDFLAGS=-Wl,-bind_at_load
2766         objformat="macho"
2767         enabled x86_64 && objformat="macho64"
2768         enabled_any pic shared ||
2769             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2770         ;;
2771     mingw32*)
2772         if test $target_os = "mingw32ce"; then
2773             disable network
2774         else
2775             target_os=mingw32
2776         fi
2777         LIBTARGET=i386
2778         if enabled x86_64; then
2779             LIBTARGET=x64
2780         elif enabled arm; then
2781             LIBTARGET=arm-wince
2782         fi
2783         shlibdir_default="$bindir_default"
2784         SLIBPREF=""
2785         SLIBSUF=".dll"
2786         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2787         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2788         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2789         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2790         SLIB_INSTALL_LINKS=
2791         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2792         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2793         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2794         objformat="win32"
2795         enable dos_paths
2796         check_cflags -fno-common
2797         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2798                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2799                 die "ERROR: MinGW runtime version must be >= 3.15."
2800         add_cppflags -U__STRICT_ANSI__
2801         ;;
2802     cygwin*)
2803         target_os=cygwin
2804         shlibdir_default="$bindir_default"
2805         SLIBPREF="cyg"
2806         SLIBSUF=".dll"
2807         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2808         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2809         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2810         objformat="win32"
2811         enable dos_paths
2812         check_cflags -fno-common
2813         add_cppflags -U__STRICT_ANSI__
2814         ;;
2815     *-dos|freedos|opendos)
2816         network_extralibs="-lsocket"
2817         objformat="coff"
2818         enable dos_paths
2819         add_cppflags -U__STRICT_ANSI__
2820         ;;
2821     linux)
2822         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2823         enable dv1394
2824         enable iec61883
2825         ;;
2826     irix*)
2827         target_os=irix
2828         ranlib="echo ignoring ranlib"
2829         ;;
2830     os/2*)
2831         strip="lxlite -CS"
2832         ln_s="cp -f"
2833         objformat="aout"
2834         add_cppflags -D_GNU_SOURCE
2835         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2836         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2837         FFSERVERLDFLAGS=""
2838         LIBSUF="_s.a"
2839         SLIBPREF=""
2840         SLIBSUF=".dll"
2841         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2842         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2843         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2844           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2845           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2846           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2847           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2848           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2849         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2850           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2851         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2852         enable dos_paths
2853         enable_weak os2threads
2854         ;;
2855     gnu/kfreebsd)
2856         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2857         ;;
2858     gnu)
2859         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2860         ;;
2861     qnx)
2862         add_cppflags -D_QNX_SOURCE
2863         network_extralibs="-lsocket"
2864         ;;
2865     symbian)
2866         SLIBSUF=".dll"
2867         enable dos_paths
2868         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2869         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2870         add_ldflags -Wl,--target1-abs,--no-undefined \
2871                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2872                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2873         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2874                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2875                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2876         ;;
2877     none)
2878         ;;
2879     *)
2880         die "Unknown OS '$target_os'."
2881         ;;
2882 esac
2883
2884 esc(){
2885     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2886 }
2887
2888 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2889
2890 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2891
2892 set_default $PATHS_LIST
2893
2894 # we need to build at least one lib type
2895 if ! enabled_any static shared; then
2896     cat <<EOF
2897 At least one library type must be built.
2898 Specify --enable-static to build the static libraries or --enable-shared to
2899 build the shared libraries as well. To only build the shared libraries specify
2900 --disable-static in addition to --enable-shared.
2901 EOF
2902     exit 1;
2903 fi
2904
2905 die_license_disabled() {
2906     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2907 }
2908
2909 die_license_disabled_gpl() {
2910     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2911 }
2912
2913 die_license_disabled gpl libcdio
2914 die_license_disabled gpl libutvideo
2915 die_license_disabled gpl libx264
2916 die_license_disabled gpl libxavs
2917 die_license_disabled gpl libxvid
2918 die_license_disabled gpl x11grab
2919
2920 die_license_disabled nonfree libaacplus
2921 die_license_disabled nonfree libfaac
2922 enabled gpl && die_license_disabled_gpl nonfree openssl
2923
2924 die_license_disabled version3 libopencore_amrnb
2925 die_license_disabled version3 libopencore_amrwb
2926 die_license_disabled version3 libvo_aacenc
2927 die_license_disabled version3 libvo_amrwbenc
2928
2929 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2930
2931 disabled optimizations || check_cflags -fomit-frame-pointer
2932
2933 enable_pic() {
2934     enable pic
2935     add_cppflags -DPIC
2936     add_cflags   -fPIC
2937     add_asflags  -fPIC
2938 }
2939
2940 enabled pic && enable_pic
2941
2942 check_cc <<EOF || die "Symbol mangling check failed."
2943 int ff_extern;
2944 EOF
2945 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2946 extern_prefix=${sym%%ff_extern*}
2947
2948 check_cc <<EOF && enable inline_asm
2949 void foo(void) { __asm__ volatile ("" ::); }
2950 EOF
2951
2952 _restrict=
2953 for restrict_keyword in restrict __restrict__ __restrict; do
2954     check_cc <<EOF && _restrict=$restrict_keyword && break
2955 void foo(char * $restrict_keyword p);
2956 EOF
2957 done
2958
2959 check_cc <<EOF && enable attribute_packed
2960 struct { int x; } __attribute__((packed)) x;
2961 EOF
2962
2963 check_cc <<EOF && enable attribute_may_alias
2964 union { int x; } __attribute__((may_alias)) x;
2965 EOF
2966
2967 check_cc <<EOF || die "endian test failed"
2968 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2969 EOF
2970 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2971
2972 if enabled alpha; then
2973
2974     check_cflags -mieee
2975
2976 elif enabled arm; then
2977
2978     enabled thumb && check_cflags -mthumb || check_cflags -marm
2979     nogas=die
2980
2981     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2982         enable vfp_args
2983     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2984         case "${cross_prefix:-$cc}" in
2985             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2986             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2987 __asm__ (".eabi_attribute 28, 1");
2988 int main(void) { return 0; }
2989 EOF
2990         esac
2991         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2992     fi
2993
2994     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2995     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2996     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2997     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2998     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2999     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3000
3001     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3002
3003     enabled_all armv6t2 shared !pic && enable_pic
3004
3005 elif enabled mips; then
3006
3007     check_asm loongson '"dmult.g $1, $2, $3"'
3008     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3009     enabled mips32r2  && add_cflags "-mips32r2" &&
3010      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3011     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3012      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3013     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3014      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3015     enabled mipsfpu   && add_cflags "-mhard-float" &&
3016      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3017
3018
3019 elif enabled ppc; then
3020
3021     enable local_aligned_8 local_aligned_16
3022
3023     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3024     check_asm ibm_asm   '"add 0, 0, 0"'
3025     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3026     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3027
3028     # AltiVec flags: The FSF version of GCC differs from the Apple version
3029     if enabled altivec; then
3030         nogas=warn
3031         check_cflags -maltivec -mabi=altivec &&
3032         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3033         check_cflags -faltivec
3034
3035         # check if our compiler supports Motorola AltiVec C API
3036         check_cc <<EOF || disable altivec
3037 $inc_altivec_h
3038 int main(void) {
3039     vector signed int v1, v2, v3;
3040     v1 = vec_add(v2,v3);
3041     return 0;
3042 }
3043 EOF
3044
3045         # check if our compiler supports braces for vector declarations
3046         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3047 $inc_altivec_h
3048 int main (void) { (vector int) {1}; return 0; }
3049 EOF
3050     fi
3051
3052 elif enabled sparc; then
3053
3054     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3055         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3056
3057 elif enabled x86; then
3058
3059     enable local_aligned_8 local_aligned_16
3060
3061     # check whether EBP is available on x86
3062     # As 'i' is stored on the stack, this program will crash
3063     # if the base pointer is used to access it because the
3064     # base pointer is cleared in the inline assembly code.
3065     check_exec_crash <<EOF && enable ebp_available
3066     volatile int i=0;
3067     __asm__ volatile (
3068         "xorl %%ebp, %%ebp"
3069     ::: "%ebp");
3070     return i;
3071 EOF
3072
3073     # check whether EBX is available on x86
3074     check_asm ebx_available '""::"b"(0)' &&
3075         check_asm ebx_available '"":::"%ebx"'
3076
3077     # check whether xmm clobbers are supported
3078     check_asm xmm_clobbers '"":::"%xmm0"'
3079
3080     # check whether binutils is new enough to compile SSSE3/MMX2
3081     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3082     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3083
3084     if ! disabled_any asm mmx yasm; then
3085         if check_cmd $yasmexe --version; then
3086             enabled x86_64 && yasm_extra="-m amd64"
3087             yasm_debug="-g dwarf2"
3088         elif check_cmd nasm -v; then
3089             yasmexe=nasm
3090             yasm_debug="-g -F dwarf"
3091             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3092         fi
3093
3094         YASMFLAGS="-f $objformat $yasm_extra"
3095         enabled pic               && append YASMFLAGS "-DPIC"
3096         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3097         case "$objformat" in
3098             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3099         esac
3100
3101         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3102             die "yasm not found, use --disable-yasm for a crippled build"
3103         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3104     fi
3105
3106     case "$cpu" in
3107         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3108             disable fast_clz
3109         ;;
3110     esac
3111
3112 fi
3113
3114 if enabled asm; then
3115     as=${gas:=$as}
3116     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3117         $nogas "GNU assembler not found, install gas-preprocessor"
3118 fi
3119
3120 check_ldflags -Wl,--as-needed
3121
3122 if check_func dlopen; then
3123     ldl=
3124 elif check_func dlopen -ldl; then
3125     ldl=-ldl
3126 fi
3127
3128 if enabled network; then
3129     check_type "sys/types.h sys/socket.h" socklen_t
3130     check_type netdb.h "struct addrinfo"
3131     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3132     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3133     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3134     check_type netinet/in.h "struct sockaddr_in6"
3135     check_type poll.h "struct pollfd"
3136     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3137     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3138     check_header netinet/sctp.h
3139     # Prefer arpa/inet.h over winsock2
3140     if check_header arpa/inet.h ; then
3141         check_func closesocket
3142     elif check_header winsock2.h ; then
3143         check_func_headers winsock2.h closesocket -lws2 && \
3144             network_extralibs="-lws2" || \
3145         { check_func_headers winsock2.h closesocket -lws2_32 && \
3146             network_extralibs="-lws2_32"; }
3147         check_type ws2tcpip.h socklen_t
3148         check_type ws2tcpip.h "struct addrinfo"
3149         check_type ws2tcpip.h "struct group_source_req"
3150         check_type ws2tcpip.h "struct ip_mreq_source"
3151         check_type ws2tcpip.h "struct ipv6_mreq"
3152         check_type winsock2.h "struct pollfd"
3153         check_type ws2tcpip.h "struct sockaddr_in6"
3154         check_type ws2tcpip.h "struct sockaddr_storage"
3155         check_struct winsock2.h "struct sockaddr" sa_len
3156     else
3157         disable network
3158     fi
3159 fi
3160
3161 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3162 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3163
3164 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3165 check_func  fcntl
3166 check_func  fork
3167 check_func  getaddrinfo $network_extralibs
3168 check_func  gethrtime
3169 check_func  getrusage
3170 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3171 check_func  gettimeofday
3172 check_func  inet_aton $network_extralibs
3173 check_func  isatty
3174 check_func  localtime_r
3175 check_func  ${malloc_prefix}memalign            && enable memalign
3176 check_func  mkstemp
3177 check_func  mmap
3178 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3179 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3180 check_func  setrlimit
3181 check_func  strerror_r
3182 check_func  strptime
3183 check_func  sched_getaffinity
3184 check_func  sysconf
3185 check_func  sysctl
3186 check_func  usleep
3187 check_func_headers conio.h kbhit
3188 check_func_headers windows.h PeekNamedPipe
3189 check_func_headers io.h setmode
3190 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3191 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3192 check_func_headers windows.h GetProcessAffinityMask
3193 check_func_headers windows.h GetProcessTimes
3194 check_func_headers windows.h GetSystemTimeAsFileTime
3195 check_func_headers windows.h MapViewOfFile
3196 check_func_headers windows.h Sleep
3197 check_func_headers windows.h VirtualAlloc
3198 check_func_headers glob.h glob
3199
3200 check_header dlfcn.h
3201 check_header dxva.h
3202 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3203 check_header libcrystalhd/libcrystalhd_if.h
3204 check_header malloc.h
3205 check_header poll.h
3206 check_header sys/mman.h
3207 check_header sys/param.h
3208 check_header sys/resource.h
3209 check_header sys/select.h
3210 check_header sys/time.h
3211 check_header termios.h
3212 check_header unistd.h
3213 check_header vdpau/vdpau.h
3214 check_header vdpau/vdpau_x11.h
3215 check_header windows.h
3216 check_header X11/extensions/XvMClib.h
3217 check_header asm/types.h
3218
3219 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3220 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3221
3222 # check for VDA header
3223 if ! disabled vda; then
3224     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3225         enable vda
3226         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3227     fi
3228 fi
3229
3230 if ! disabled w32threads && ! enabled pthreads; then
3231     check_func _beginthreadex && enable w32threads
3232 fi
3233
3234 # check for some common methods of building with pthread support
3235 # do this before the optional library checks as some of them require pthreads
3236 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3237     enable pthreads
3238     if check_func pthread_create; then
3239         :
3240     elif check_func pthread_create -pthread; then
3241         add_cflags -pthread
3242         add_extralibs -pthread
3243     elif check_func pthread_create -pthreads; then
3244         add_cflags -pthreads
3245         add_extralibs -pthreads
3246     elif check_func pthread_create -lpthreadGC2; then
3247         add_extralibs -lpthreadGC2
3248     elif ! check_lib pthread.h pthread_create -lpthread; then
3249         disable pthreads
3250     fi
3251 fi
3252
3253 for thread in $THREADS_LIST; do
3254     if enabled $thread; then
3255         test -n "$thread_type" &&
3256             die "ERROR: Only one thread type must be selected." ||
3257             thread_type="$thread"
3258     fi
3259 done
3260
3261 if enabled pthreads; then
3262   check_func pthread_cancel
3263 fi
3264
3265 check_lib math.h sin -lm && LIBM="-lm"
3266 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3267 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3268
3269 check_mathfunc cbrtf
3270 check_mathfunc exp2
3271 check_mathfunc exp2f
3272 check_mathfunc isinf
3273 check_mathfunc isnan
3274 check_mathfunc llrint
3275 check_mathfunc llrintf
3276 check_mathfunc log2
3277 check_mathfunc log2f
3278 check_mathfunc lrint
3279 check_mathfunc lrintf
3280 check_mathfunc round
3281 check_mathfunc roundf
3282 check_mathfunc trunc
3283 check_mathfunc truncf
3284
3285 # these are off by default, so fail if requested and not available
3286 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3287 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3288 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3289 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3290 enabled iec61883   && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3291 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3292 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3293 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3294 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3295                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3296                         die "ERROR: libcelt version must be >= 0.11.0."; }
3297 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3298 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3299 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3300 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3301 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3302 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3303 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3304 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3305 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3306 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3307 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3308 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3309 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3310 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3311 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3312 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3313     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3314     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3315 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3316 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3317 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3318 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3319 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3320 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3321 enabled libvpx     && {
3322     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3323                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3324     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3325                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3326 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3327                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3328                         die "ERROR: libx264 version must be >= 0.118."; }
3329 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3330 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3331 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3332                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3333                         die "ERROR: openal not found"; } &&
3334                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3335                         die "ERROR: openal version must be 1.1 or compatible"; }
3336 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3337                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3338                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3339                         die "ERROR: openssl not found"; }
3340
3341 # libdc1394 check
3342 if enabled libdc1394; then
3343     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3344         enable libdc1394_2; } ||
3345     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3346         enable libdc1394_1; } ||
3347     die "ERROR: No version of libdc1394 found "
3348 fi
3349
3350 SDL_CONFIG="${cross_prefix}sdl-config"
3351 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3352     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3353     enable sdl &&
3354     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3355 else
3356   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3357     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3358     sdl_libs=$("${SDL_CONFIG}" --libs)
3359     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3360     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3361     enable sdl &&
3362     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3363   fi
3364 fi
3365 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3366
3367 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
3368 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3369
3370 check_header linux/fb.h
3371 check_header linux/videodev.h
3372 check_header linux/videodev2.h
3373 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3374
3375 check_header sys/videoio.h
3376
3377 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3378 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3379 # w32api 3.12 had it defined wrong
3380 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3381
3382 check_type "dshow.h" IBaseFilter
3383
3384 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3385 { check_header dev/bktr/ioctl_meteor.h &&
3386   check_header dev/bktr/ioctl_bt848.h; } ||
3387 { check_header machine/ioctl_meteor.h &&
3388   check_header machine/ioctl_bt848.h; } ||
3389 { check_header dev/video/meteor/ioctl_meteor.h &&
3390   check_header dev/video/bktr/ioctl_bt848.h; } ||
3391 check_header dev/ic/bt8xx.h
3392
3393 check_header sndio.h
3394 if check_struct sys/soundcard.h audio_buf_info bytes; then
3395     enable_safe sys/soundcard.h
3396 else
3397     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3398     #include <sys/soundcard.h>
3399     audio_buf_info abc;
3400 EOF
3401 fi
3402 check_header soundcard.h
3403
3404 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3405
3406 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3407     check_func jack_port_get_latency_range -ljack
3408
3409 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3410
3411 enabled libcdio &&
3412     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3413
3414 enabled x11grab                                           &&
3415 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3416 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3417 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3418
3419 if ! disabled vaapi; then
3420     check_lib va/va.h vaInitialize -lva && {
3421         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3422         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3423     } || disable vaapi
3424 fi
3425
3426 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3427 check_cpp_condition \
3428     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3429     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3430       disable vdpau; }
3431 fi
3432
3433 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3434 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3435 test -n "$valgrind" && target_exec="$valgrind --error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
3436
3437 # add some useful compiler flags if supported
3438 check_cflags -Wdeclaration-after-statement
3439 check_cflags -Wall
3440 check_cflags -Wno-parentheses
3441 check_cflags -Wno-switch
3442 check_cflags -Wno-format-zero-length
3443 check_cflags -Wdisabled-optimization
3444 check_cflags -Wpointer-arith
3445 check_cflags -Wredundant-decls
3446 check_cflags -Wno-pointer-sign
3447 check_cflags -Wwrite-strings
3448 check_cflags -Wtype-limits
3449 check_cflags -Wundef
3450 check_cflags -Wmissing-prototypes
3451 check_cflags -Wno-pointer-to-int-cast
3452 check_cflags -Wstrict-prototypes
3453 enabled extra_warnings && check_cflags -Winline
3454
3455 # add some linker flags
3456 check_ldflags -Wl,--warn-common
3457 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3458 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3459
3460 enabled xmm_clobber_test &&                             \
3461     check_ldflags -Wl,--wrap,avcodec_open2              \
3462                   -Wl,--wrap,avcodec_decode_audio4      \
3463                   -Wl,--wrap,avcodec_decode_video2      \
3464                   -Wl,--wrap,avcodec_decode_subtitle2   \
3465                   -Wl,--wrap,avcodec_encode_audio2      \
3466                   -Wl,--wrap,avcodec_encode_video       \
3467                   -Wl,--wrap,avcodec_encode_subtitle    \
3468                   -Wl,--wrap,sws_scale ||               \
3469     disable xmm_clobber_test
3470
3471 echo "X{};" > $TMPV
3472 if test_ldflags -Wl,--version-script,$TMPV; then
3473     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3474     check_cc <<EOF && enable symver_asm_label
3475 void ff_foo(void) __asm__ ("av_foo@VERSION");
3476 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3477 EOF
3478     check_cc <<EOF && enable symver_gnu_asm
3479 __asm__(".symver ff_foo,av_foo@VERSION");
3480 void ff_foo(void) {}
3481 EOF
3482 fi
3483
3484 if [ -n "$optflags" ]; then
3485     add_cflags $optflags
3486 elif enabled small; then
3487     add_cflags $size_cflags
3488 elif enabled optimizations; then
3489     add_cflags $speed_cflags
3490 else
3491     add_cflags $noopt_cflags
3492 fi
3493 check_cflags -fno-math-errno
3494 check_cflags -fno-signed-zeros
3495 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3496 int x;
3497 EOF
3498
3499
3500 if enabled icc; then
3501     # Just warnings, no remarks
3502     check_cflags -w1
3503     # -wd: Disable following warnings
3504     # 144, 167, 556: -Wno-pointer-sign
3505     # 1292: attribute "foo" ignored
3506     # 1419: external declaration in primary source file
3507     # 10006: ignoring unknown option -fno-signed-zeros
3508     # 10148: ignoring unknown option -Wno-parentheses
3509     # 10156: ignoring option '-W'; no argument required
3510     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3511     # 11030: Warning unknown option --as-needed
3512     # 10156: ignoring option '-export'; no argument required
3513     check_ldflags -wd10156,11030
3514     # Allow to compile with optimizations
3515     check_ldflags -march=$cpu
3516     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3517     enable ebp_available
3518     if enabled x86_32; then
3519         test ${icc_version%%.*} -ge 11 && \
3520             check_cflags -falign-stack=maintain-16-byte || \
3521             disable aligned_stack
3522     fi
3523 elif enabled ccc; then
3524     # disable some annoying warnings
3525     add_cflags -msg_disable cvtu32to64
3526     add_cflags -msg_disable embedcomment
3527     add_cflags -msg_disable needconstext
3528     add_cflags -msg_disable nomainieee
3529     add_cflags -msg_disable ptrmismatch1
3530     add_cflags -msg_disable unreachcode
3531 elif enabled gcc; then
3532     check_cflags -fno-tree-vectorize
3533     check_cflags -Werror=implicit-function-declaration
3534     check_cflags -Werror=missing-prototypes
3535 elif enabled llvm_gcc; then
3536     check_cflags -mllvm -stack-alignment=16
3537 elif enabled clang; then
3538     check_cflags -mllvm -stack-alignment=16
3539     check_cflags -Qunused-arguments
3540 elif enabled armcc; then
3541     # 2523: use of inline assembler is deprecated
3542     add_cflags -W${armcc_opt},--diag_suppress=2523
3543     add_cflags -W${armcc_opt},--diag_suppress=1207
3544     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3545     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3546     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3547     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3548 elif enabled tms470; then
3549     add_cflags -pds=824 -pds=837
3550 elif enabled pathscale; then
3551     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3552 fi
3553
3554 enabled_any $THREADS_LIST      && enable threads
3555
3556 check_deps $CONFIG_LIST       \
3557            $CONFIG_EXTRA      \
3558            $HAVE_LIST         \
3559            $ALL_COMPONENTS    \
3560            $ALL_TESTS         \
3561
3562 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3563
3564 if test $target_os = "haiku"; then
3565     disable memalign
3566     disable posix_memalign
3567 fi
3568
3569 ! enabled_any memalign posix_memalign aligned_malloc &&
3570     enabled_any $need_memalign && enable memalign_hack
3571
3572 # add_dep lib dep
3573 # -> enable ${lib}_deps_${dep}
3574 # -> add $dep to ${lib}_deps only once
3575 add_dep() {
3576     lib=$1
3577     dep=$2
3578     enabled "${lib}_deps_${dep}" && return 0
3579     enable  "${lib}_deps_${dep}"
3580     prepend "${lib}_deps" $dep
3581 }
3582
3583 # merge deps lib components
3584 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3585 merge_deps() {
3586     lib=$1
3587     shift
3588     for comp in $*; do
3589         enabled $comp || continue
3590         eval "dep=\"\$${comp}_deps\""
3591         for d in $dep; do
3592             add_dep $lib $d
3593         done
3594     done
3595 }
3596
3597 merge_deps libavfilter $FILTER_LIST
3598
3599 echo "install prefix            $prefix"
3600 echo "source path               $source_path"
3601 echo "C compiler                $cc"
3602 echo "ARCH                      $arch ($cpu)"
3603 if test "$build_suffix" != ""; then
3604     echo "build suffix              $build_suffix"
3605 fi
3606 if test "$progs_suffix" != ""; then
3607     echo "progs suffix              $progs_suffix"
3608 fi
3609 if test "$extra_version" != ""; then
3610     echo "version string suffix     $extra_version"
3611 fi
3612 echo "big-endian                ${bigendian-no}"
3613 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3614 if enabled x86; then
3615     echo "${yasmexe}                      ${yasm-no}"
3616     echo "MMX enabled               ${mmx-no}"
3617     echo "MMX2 enabled              ${mmx2-no}"
3618     echo "3DNow! enabled            ${amd3dnow-no}"
3619     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3620     echo "SSE enabled               ${sse-no}"
3621     echo "SSSE3 enabled             ${ssse3-no}"
3622     echo "AVX enabled               ${avx-no}"
3623     echo "CMOV enabled              ${cmov-no}"
3624     echo "CMOV is fast              ${fast_cmov-no}"
3625     echo "EBX available             ${ebx_available-no}"
3626     echo "EBP available             ${ebp_available-no}"
3627 fi
3628 if enabled arm; then
3629     echo "ARMv5TE enabled           ${armv5te-no}"
3630     echo "ARMv6 enabled             ${armv6-no}"
3631     echo "ARMv6T2 enabled           ${armv6t2-no}"
3632     echo "ARM VFP enabled           ${armvfp-no}"
3633     echo "NEON enabled              ${neon-no}"
3634 fi
3635 if enabled mips; then
3636     echo "MMI enabled               ${mmi-no}"
3637     echo "MIPS FPU enabled          ${mipsfpu-no}"
3638     echo "MIPS32R2 enabled          ${mips32r2-no}"
3639     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3640     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3641 fi
3642 if enabled ppc; then
3643     echo "AltiVec enabled           ${altivec-no}"
3644     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3645     echo "dcbzl available           ${dcbzl-no}"
3646 fi
3647 if enabled sparc; then
3648     echo "VIS enabled               ${vis-no}"
3649 fi
3650 echo "debug symbols             ${debug-no}"
3651 echo "strip symbols             ${stripping-no}"
3652 echo "optimize for size         ${small-no}"
3653 echo "optimizations             ${optimizations-no}"
3654 echo "static                    ${static-no}"
3655 echo "shared                    ${shared-no}"
3656 echo "postprocessing support    ${postproc-no}"
3657 echo "new filter support        ${avfilter-no}"
3658 echo "network support           ${network-no}"
3659 echo "threading support         ${thread_type-no}"
3660 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3661 echo "SDL support               ${sdl-no}"
3662 echo "libdxva2 enabled          ${dxva2-no}"
3663 echo "libva enabled             ${vaapi-no}"
3664 echo "libvdpau enabled          ${vdpau-no}"
3665 echo "AVISynth enabled          ${avisynth-no}"
3666 echo "frei0r enabled            ${frei0r-no}"
3667 echo "gnutls enabled            ${gnutls-no}"
3668 echo "libaacplus enabled        ${libaacplus-no}"
3669 echo "libass enabled            ${libass-no}"
3670 echo "libcdio support           ${libcdio-no}"
3671 echo "libcelt enabled           ${libcelt-no}"
3672 echo "libdc1394 support         ${libdc1394-no}"
3673 echo "libfaac enabled           ${libfaac-no}"
3674 echo "libgsm enabled            ${libgsm-no}"
3675 echo "libilbc enabled           ${libilbc-no}"
3676 echo "libmodplug enabled        ${libmodplug-no}"
3677 echo "libmp3lame enabled        ${libmp3lame-no}"
3678 echo "libnut enabled            ${libnut-no}"
3679 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3680 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3681 echo "libopencv support         ${libopencv-no}"
3682 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3683 echo "libpulse enabled          ${libpulse-no}"
3684 echo "librtmp enabled           ${librtmp-no}"
3685 echo "libschroedinger enabled   ${libschroedinger-no}"
3686 echo "libspeex enabled          ${libspeex-no}"
3687 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3688 echo "libtheora enabled         ${libtheora-no}"
3689 echo "libutvideo enabled        ${libutvideo-no}"
3690 echo "libv4l2 enabled           ${libv4l2-no}"
3691 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3692 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3693 echo "libvorbis enabled         ${libvorbis-no}"
3694 echo "libvpx enabled            ${libvpx-no}"
3695 echo "libx264 enabled           ${libx264-no}"
3696 echo "libxavs enabled           ${libxavs-no}"
3697 echo "libxvid enabled           ${libxvid-no}"
3698 echo "openal enabled            ${openal-no}"
3699 echo "openssl enabled           ${openssl-no}"
3700 echo "zlib enabled              ${zlib-no}"
3701 echo "bzlib enabled             ${bzlib-no}"
3702 test -n "$random_seed" &&
3703     echo "random seed               ${random_seed}"
3704 echo
3705
3706 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3707     echo "Enabled ${type}s:"
3708     eval list=\$$(toupper $type)_LIST
3709     print_enabled '_*' $list | sort | pr -r -3 -t
3710     echo
3711 done
3712
3713 license="LGPL version 2.1 or later"
3714 if enabled nonfree; then
3715     license="nonfree and unredistributable"
3716 elif enabled gplv3; then
3717     license="GPL version 3 or later"
3718 elif enabled lgplv3; then
3719     license="LGPL version 3 or later"
3720 elif enabled gpl; then
3721     license="GPL version 2 or later"
3722 fi
3723
3724 echo "License: $license"
3725
3726 echo "Creating config.mak and config.h..."
3727
3728 test -e Makefile || $ln_s "$source_path/Makefile" .
3729
3730 enabled stripping || strip="echo skipping strip"
3731
3732 config_files="$TMPH config.mak"
3733
3734 cat > config.mak <<EOF
3735 # Automatically generated by configure - do not modify!
3736 ifndef FFMPEG_CONFIG_MAK
3737 FFMPEG_CONFIG_MAK=1
3738 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3739 prefix=$prefix
3740 LIBDIR=\$(DESTDIR)$libdir
3741 SHLIBDIR=\$(DESTDIR)$shlibdir
3742 INCDIR=\$(DESTDIR)$incdir
3743 BINDIR=\$(DESTDIR)$bindir
3744 DATADIR=\$(DESTDIR)$datadir
3745 MANDIR=\$(DESTDIR)$mandir
3746 SRC_PATH=$source_path
3747 ifndef MAIN_MAKEFILE
3748 SRC_PATH:=\$(SRC_PATH:.%=..%)
3749 endif
3750 CC_IDENT=$cc_ident
3751 ARCH=$arch
3752 CC=$cc
3753 CXX=$cxx
3754 AS=$as
3755 LD=$ld
3756 DEPCC=$dep_cc
3757 YASM=$yasmexe
3758 YASMDEP=$yasmexe
3759 AR=$ar
3760 RANLIB=$ranlib
3761 CP=cp -p
3762 LN_S=$ln_s
3763 STRIP=$strip
3764 CPPFLAGS=$CPPFLAGS
3765 CFLAGS=$CFLAGS
3766 CXXFLAGS=$CXXFLAGS
3767 ASFLAGS=$ASFLAGS
3768 AS_O=$CC_O
3769 CC_O=$CC_O
3770 CXX_O=$CXX_O
3771 LDFLAGS=$LDFLAGS
3772 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3773 SHFLAGS=$SHFLAGS
3774 YASMFLAGS=$YASMFLAGS
3775 BUILDSUF=$build_suffix
3776 PROGSSUF=$progs_suffix
3777 FULLNAME=$FULLNAME
3778 LIBPREF=$LIBPREF
3779 LIBSUF=$LIBSUF
3780 LIBNAME=$LIBNAME
3781 SLIBPREF=$SLIBPREF
3782 SLIBSUF=$SLIBSUF
3783 EXESUF=$EXESUF
3784 EXTRA_VERSION=$extra_version
3785 DEPFLAGS=$DEPFLAGS
3786 CCDEP=$CCDEP
3787 CXXDEP=$CXXDEP
3788 ASDEP=$ASDEP
3789 CC_DEPFLAGS=$CC_DEPFLAGS
3790 AS_DEPFLAGS=$AS_DEPFLAGS
3791 HOSTCC=$host_cc
3792 HOSTCFLAGS=$host_cflags
3793 HOSTEXESUF=$HOSTEXESUF
3794 HOSTLDFLAGS=$host_ldflags
3795 HOSTLIBS=$host_libs
3796 TARGET_EXEC=$target_exec
3797 TARGET_PATH=$target_path
3798 SDL_LIBS=$sdl_libs
3799 SDL_CFLAGS=$sdl_cflags
3800 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3801 EXTRALIBS=$extralibs
3802 INSTALL=$install
3803 LIBTARGET=${LIBTARGET}
3804 SLIBNAME=${SLIBNAME}
3805 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3806 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3807 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3808 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3809 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3810 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3811 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3812 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3813 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3814 NOREDZONE_FLAGS=$noredzone_flags
3815 EOF
3816
3817 get_version(){
3818     lcname=$1
3819     name=$(toupper $lcname)
3820     file=$source_path/$lcname/version.h
3821     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3822     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3823     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3824     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3825 }
3826
3827 get_version_old(){
3828     name=$1
3829     file=$source_path/$2
3830 # This condition will be removed when we stop supporting old libpostproc versions
3831 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3832     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3833     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3834 fi
3835     lcname=$(tolower $name)
3836     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3837     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3838 }
3839
3840 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3841 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3842
3843 get_version libavcodec
3844 get_version libavdevice
3845 get_version libavfilter
3846 get_version libavformat
3847 get_version libavresample
3848 get_version libavutil
3849 get_version libswscale
3850
3851 cat > $TMPH <<EOF
3852 /* Automatically generated by configure - do not modify! */
3853 #ifndef FFMPEG_CONFIG_H
3854 #define FFMPEG_CONFIG_H
3855 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3856 #define FFMPEG_LICENSE "$(c_escape $license)"
3857 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3858 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3859 #define CC_TYPE "$cc_type"
3860 #define CC_VERSION $cc_version
3861 #define av_restrict $_restrict
3862 #define EXTERN_PREFIX "${extern_prefix}"
3863 #define EXTERN_ASM ${extern_prefix}
3864 #define SLIBSUF "$SLIBSUF"
3865 EOF
3866
3867 test -n "$assert_level" &&
3868     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3869
3870 test -n "$malloc_prefix" &&
3871     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3872
3873 if enabled yasm; then
3874     append config_files $TMPASM
3875     printf '' >$TMPASM
3876 fi
3877
3878 print_config ARCH_   "$config_files" $ARCH_LIST
3879 print_config HAVE_   "$config_files" $HAVE_LIST
3880 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3881                                      $CONFIG_EXTRA      \
3882                                      $ALL_COMPONENTS    \
3883
3884 cat >>config.mak <<EOF
3885 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3886 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3887 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3888 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3889 EOF
3890
3891 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3892 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3893
3894 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3895 cp_if_changed $TMPH config.h
3896 touch .config
3897
3898 enabled yasm && cp_if_changed $TMPASM config.asm
3899
3900 cat > $TMPH <<EOF
3901 /* Generated by ffconf */
3902 #ifndef AVUTIL_AVCONFIG_H
3903 #define AVUTIL_AVCONFIG_H
3904 EOF
3905
3906 test "$postproc_version" != current && cat >> $TMPH <<EOF
3907 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3908 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3909 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3910 EOF
3911
3912 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3913
3914 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3915
3916 cp_if_changed $TMPH libavutil/avconfig.h
3917
3918 test -n "$WARNINGS" && printf "\n$WARNINGS"
3919
3920 # build pkg-config files
3921
3922 pkgconfig_generate(){
3923 name=$1
3924 shortname=${name#lib}${build_suffix}
3925 comment=$2
3926 version=$3
3927 libs=$4
3928 requires=$5
3929 enabled ${name#lib} || return 0
3930 mkdir -p $name
3931 cat <<EOF > $name/$name.pc
3932 prefix=$prefix
3933 exec_prefix=\${prefix}
3934 libdir=$libdir
3935 includedir=$incdir
3936
3937 Name: $name
3938 Description: $comment
3939 Version: $version
3940 Requires: $(enabled shared || echo $requires)
3941 Requires.private: $(enabled shared && echo $requires)
3942 Conflicts:
3943 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3944 Libs.private: $(enabled shared && echo $libs)
3945 Cflags: -I\${includedir}
3946 EOF
3947 cat <<EOF > $name/$name-uninstalled.pc
3948 prefix=
3949 exec_prefix=
3950 libdir=\${pcfiledir}
3951 includedir=${source_path}
3952
3953 Name: $name
3954 Description: $comment
3955 Version: $version
3956 Requires: $requires
3957 Conflicts:
3958 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3959 Cflags: -I\${includedir}
3960 EOF
3961 }
3962
3963 libavfilter_pc_deps=""
3964 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
3965 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
3966 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
3967 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
3968 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
3969 libavfilter_pc_deps=${libavfilter_pc_deps%, }
3970
3971 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
3972 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
3973
3974 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3975 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3976 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3977 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
3978 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
3979 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3980 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
3981 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
3982 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"