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 libavfilter build
 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-libcaca         enable textual display using libcaca
 177   --enable-libcelt         enable CELT decoding via libcelt [no]
 178   --enable-libcdio         enable audio CD grabbing with libcdio
 179   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 180                            and libraw1394 [no]
 181   --enable-libfaac         enable AAC encoding via libfaac [no]
 182   --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
 183   --enable-libfreetype     enable libfreetype [no]
 184   --enable-libgsm          enable GSM de/encoding via libgsm [no]
 185   --enable-libiec61883     enable iec61883 via libiec61883 [no]
 186   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
 187   --enable-libmodplug      enable ModPlug via libmodplug [no]
 188   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 189   --enable-libnut          enable NUT (de)muxing via libnut,
 190                            native (de)muxer exists [no]
 191   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 192   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 193   --enable-libopencv       enable video filtering via libopencv [no]
 194   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
 195   --enable-libopus         enable Opus decoding via libopus [no]
 196   --enable-libpulse        enable Pulseaudio input via libpulse [no]
 197   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 198   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
 199   --enable-libspeex        enable Speex de/encoding via libspeex [no]
 200   --enable-libstagefright-h264  enable H.264 decoding via libstagefright [no]
 201   --enable-libtheora       enable Theora encoding via libtheora [no]
 202   --enable-libutvideo      enable Ut Video encoding and decoding via libutvideo [no]
 203   --enable-libv4l2         enable libv4l2/v4l-utils [no]
 204   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
 205   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
 206   --enable-libvorbis       enable Vorbis en/decoding via libvorbis,
 207                            native implementation exists [no]
 208   --enable-libvpx          enable VP8 de/encoding via libvpx [no]
 209   --enable-libx264         enable H.264 encoding via x264 [no]
 210   --enable-libxavs         enable AVS encoding via xavs [no]
 211   --enable-libxvid         enable Xvid encoding via xvidcore,
 212                            native MPEG-4/Xvid encoder exists [no]
 213   --enable-openal          enable OpenAL 1.1 capture support [no]
 214   --enable-openssl         enable openssl [no]
 215   --enable-zlib            enable zlib [autodetect]
 216
 217 Advanced options (experts only):
 218   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 219   --enable-cross-compile   assume a cross-compiler is used
 220   --sysroot=PATH           root of cross-build tree
 221   --sysinclude=PATH        location of cross-build system headers
 222   --target-os=OS           compiler targets OS [$target_os]
 223   --target-exec=CMD        command to run executables on target
 224   --target-path=DIR        path to view of build directory on target
 225   --nm=NM                  use nm tool NM [$nm_default]
 226   --ar=AR                  use archive tool AR [$ar_default]
 227   --as=AS                  use assembler AS [$as_default]
 228   --yasmexe=EXE            use yasm-compatible assembler EXE [$yasmexe_default]
 229   --cc=CC                  use C compiler CC [$cc_default]
 230   --cxx=CXX                use C compiler CXX [$cxx_default]
 231   --ld=LD                  use linker LD [$ld_default]
 232   --host-cc=HOSTCC         use host C compiler HOSTCC
 233   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 234   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 235   --host-libs=HLIBS        use libs HLIBS when linking for host
 236   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 237   --extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
 238   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 239   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 240   --extra-version=STRING   version string suffix []
 241   --optflags               override optimization-related compiler flags
 242   --build-suffix=SUFFIX    library name suffix []
 243   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
 244   --progs-suffix=SUFFIX    program name suffix []
 245   --arch=ARCH              select architecture [$arch]
 246   --cpu=CPU                select the minimum required CPU (affects
 247                            instruction selection, may crash on older CPUs)
 248   --enable-pic             build position-independent code
 249   --enable-sram            allow use of on-chip SRAM
 250   --disable-symver         disable symbol versioning
 251   --disable-fastdiv        disable table-based division
 252   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 253   --disable-safe-bitstream-reader
 254                            disable buffer boundary checking in bitreaders
 255                            (faster, but may crash)
 256   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 257
 258 Optimization options (experts only):
 259   --disable-asm            disable all assembler optimizations
 260   --disable-altivec        disable AltiVec optimizations
 261   --disable-amd3dnow       disable 3DNow! optimizations
 262   --disable-amd3dnowext    disable 3DNow! extended optimizations
 263   --disable-mmx            disable MMX optimizations
 264   --disable-mmx2           disable MMX2 optimizations
 265   --disable-sse            disable SSE optimizations
 266   --disable-ssse3          disable SSSE3 optimizations
 267   --disable-avx            disable AVX optimizations
 268   --disable-armv5te        disable armv5te optimizations
 269   --disable-armv6          disable armv6 optimizations
 270   --disable-armv6t2        disable armv6t2 optimizations
 271   --disable-armvfp         disable ARM VFP optimizations
 272   --disable-mmi            disable MMI optimizations
 273   --disable-neon           disable NEON optimizations
 274   --disable-vis            disable VIS optimizations
 275   --disable-yasm           disable use of yasm assembler
 276   --disable-mips32r2       disable MIPS32R2 optimizations
 277   --disable-mipsdspr1      disable MIPS DSP ASE R1 optimizations
 278   --disable-mipsdspr2      disable MIPS DSP ASE R2 optimizations
 279   --disable-mipsfpu        disable floating point MIPS optimizations
 280   --disable-fast-unaligned consider unaligned accesses slow
 281   --postproc-version=V     build libpostproc version V.
 282                            Where V can be '$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO' or 'current'. [$postproc_version_default]
 283
 284 Developer options (useful when working on FFmpeg itself):
 285   --enable-coverage        build with test coverage instrumentation
 286   --disable-debug          disable debugging symbols
 287   --enable-debug=LEVEL     set the debug level [$debuglevel]
 288   --disable-optimizations  disable compiler optimizations
 289   --enable-extra-warnings  enable more compiler warnings
 290   --disable-stripping      disable stripping of executables and shared libraries
 291   --assert-level=level     0(default), 1 or 2, amount of assertion testing,
 292                            2 causes a slowdown at runtime.
 293   --enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
 294   --valgrind=VALGRIND      run "make fate" tests through valgrind to detect memory
 295                            leaks and errors, using the specified valgrind binary.
 296                            Cannot be combined with --target-exec
 297   --samples=PATH           location of test samples for FATE, if not set use
 298                            \$FATE_SAMPLES at make invocation time.
 299   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
 300                            should be used only for debugging purposes)
 301   --enable-random          randomly enable/disable components
 302   --disable-random
 303   --enable-random=LIST     randomly enable/disable specific components or
 304   --disable-random=LIST    component groups. LIST is a comma-separated list
 305                            of NAME[:PROB] entries where NAME is a component
 306                            (group) and PROB the probability associated with
 307                            NAME (default 0.5).
 308   --random-seed=VALUE      seed value for --enable/disable-random
 309
 310 NOTE: Object files are built at the place where configure is launched.
 311 EOF
 312   exit 0
 313 }
 314
 315 quotes='""'
 316
 317 log(){
 318     echo "$@" >> $logfile
 319 }
 320
 321 log_file(){
 322     log BEGIN $1
 323     pr -n -t $1 >> $logfile
 324     log END $1
 325 }
 326
 327 echolog(){
 328     log "$@"
 329     echo "$@"
 330 }
 331
 332 warn(){
 333     log "WARNING: $*"
 334     WARNINGS="${WARNINGS}WARNING: $*\n"
 335 }
 336
 337 die(){
 338     echolog "$@"
 339     cat <<EOF
 340
 341 If you think configure made a mistake, make sure you are using the latest
 342 version from Git.  If the latest version fails, report the problem to the
 343 ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
 344 EOF
 345     if disabled logging; then
 346         cat <<EOF
 347 Rerun configure with logging enabled (do not use --disable-logging), and
 348 include the log this produces with your report.
 349 EOF
 350     else
 351 cat <<EOF
 352 Include the log file "$logfile" produced by configure as this will help
 353 solving the problem.
 354 EOF
 355     fi
 356     exit 1
 357 }
 358
 359 # Avoid locale weirdness, besides we really just want to translate ASCII.
 360 toupper(){
 361     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 362 }
 363
 364 tolower(){
 365     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 366 }
 367
 368 c_escape(){
 369     echo "$*" | sed 's/["\\]/\\\0/g'
 370 }
 371
 372 sh_quote(){
 373     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 374     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
 375     echo "$v"
 376 }
 377
 378 cleanws(){
 379     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
 380 }
 381
 382 filter(){
 383     pat=$1
 384     shift
 385     for v; do
 386         eval "case $v in $pat) echo $v ;; esac"
 387     done
 388 }
 389
 390 filter_out(){
 391     pat=$1
 392     shift
 393     for v; do
 394         eval "case $v in $pat) ;; *) echo $v ;; esac"
 395     done
 396 }
 397
 398 map(){
 399     m=$1
 400     shift
 401     for v; do eval $m; done
 402 }
 403
 404 set_all(){
 405     value=$1
 406     shift
 407     for var in $*; do
 408         eval $var=$value
 409     done
 410 }
 411
 412 set_weak(){
 413     value=$1
 414     shift
 415     for var; do
 416         eval : \${$var:=$value}
 417     done
 418 }
 419
 420 set_safe(){
 421     var=$1
 422     shift
 423     eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
 424 }
 425
 426 get_safe(){
 427     eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
 428 }
 429
 430 pushvar(){
 431     for var in $*; do
 432         eval level=\${${var}_level:=0}
 433         eval ${var}_${level}="\$$var"
 434         eval ${var}_level=$(($level+1))
 435     done
 436 }
 437
 438 popvar(){
 439     for var in $*; do
 440         eval level=\${${var}_level:-0}
 441         test $level = 0 && continue
 442         eval level=$(($level-1))
 443         eval $var="\${${var}_${level}}"
 444         eval ${var}_level=$level
 445         eval unset ${var}_${level}
 446     done
 447 }
 448
 449 enable(){
 450     set_all yes $*
 451 }
 452
 453 disable(){
 454     set_all no $*
 455 }
 456
 457 enable_weak(){
 458     set_weak yes $*
 459 }
 460
 461 disable_weak(){
 462     set_weak no $*
 463 }
 464
 465 enable_safe(){
 466     for var; do
 467         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 468     done
 469 }
 470
 471 disable_safe(){
 472     for var; do
 473         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 474     done
 475 }
 476
 477 do_enable_deep(){
 478     for var; do
 479         enabled $var && continue
 480         eval sel="\$${var}_select"
 481         eval sgs="\$${var}_suggest"
 482         pushvar var sgs
 483         enable_deep $sel
 484         popvar sgs
 485         enable_deep_weak $sgs
 486         popvar var
 487     done
 488 }
 489
 490 enable_deep(){
 491     do_enable_deep $*
 492     enable $*
 493 }
 494
 495 enable_deep_weak(){
 496     do_enable_deep $*
 497     enable_weak $*
 498 }
 499
 500 enabled(){
 501     test "${1#!}" = "$1" && op== || op=!=
 502     eval test "x\$${1#!}" $op "xyes"
 503 }
 504
 505 disabled(){
 506     test "${1#!}" = "$1" && op== || op=!=
 507     eval test "x\$${1#!}" $op "xno"
 508 }
 509
 510 enabled_all(){
 511     for opt; do
 512         enabled $opt || return 1
 513     done
 514 }
 515
 516 disabled_all(){
 517     for opt; do
 518         disabled $opt || return 1
 519     done
 520 }
 521
 522 enabled_any(){
 523     for opt; do
 524         enabled $opt && return 0
 525     done
 526 }
 527
 528 disabled_any(){
 529     for opt; do
 530         disabled $opt && return 0
 531     done
 532     return 1
 533 }
 534
 535 set_default(){
 536     for opt; do
 537         eval : \${$opt:=\$${opt}_default}
 538     done
 539 }
 540
 541 is_in(){
 542     value=$1
 543     shift
 544     for var in $*; do
 545         [ $var = $value ] && return 0
 546     done
 547     return 1
 548 }
 549
 550 check_deps(){
 551     for cfg; do
 552         cfg="${cfg#!}"
 553         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 554         disabled ${cfg}_checking && continue
 555         enable ${cfg}_checking
 556
 557         eval dep_all="\$${cfg}_deps"
 558         eval dep_any="\$${cfg}_deps_any"
 559         eval dep_sel="\$${cfg}_select"
 560         eval dep_sgs="\$${cfg}_suggest"
 561         eval dep_ifa="\$${cfg}_if"
 562         eval dep_ifn="\$${cfg}_if_any"
 563
 564         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 565         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 566         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 567
 568         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 569         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 570         enabled_all  $dep_all || disable $cfg
 571         enabled_any  $dep_any || disable $cfg
 572         disabled_any $dep_sel && disable $cfg
 573
 574         if enabled $cfg; then
 575             eval dep_extralibs="\$${cfg}_extralibs"
 576             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 577             enable_deep $dep_sel
 578             enable_deep_weak $dep_sgs
 579         fi
 580
 581         disable ${cfg}_checking
 582     done
 583 }
 584
 585 print_config_h(){
 586     enabled $1 && v=1 || v=0
 587     echo "#define $2 $v"
 588 }
 589
 590 print_config_mak(){
 591     enabled $1 && v= || v=!
 592     echo "$v$2=yes"
 593 }
 594
 595 print_config_asm(){
 596     enabled $1 && v=1 || v=0
 597     echo "%define $2 $v"
 598 }
 599
 600 print_config(){
 601     pfx=$1
 602     files=$2
 603     shift 2
 604     for cfg; do
 605         ucname="$(toupper $cfg)"
 606         for f in $files; do
 607             "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
 608         done
 609     done
 610 }
 611
 612 print_enabled(){
 613     test "$1" = -n && end=" " && shift || end="\n"
 614     suf=$1
 615     shift
 616     for v; do
 617         enabled $v && printf "%s$end" ${v%$suf};
 618     done
 619 }
 620
 621 append(){
 622     var=$1
 623     shift
 624     eval "$var=\"\$$var $*\""
 625 }
 626
 627 prepend(){
 628     var=$1
 629     shift
 630     eval "$var=\"$* \$$var\""
 631 }
 632
 633 add_cppflags(){
 634     append CPPFLAGS "$@"
 635 }
 636
 637 add_cflags(){
 638     append CFLAGS $($cflags_filter "$@")
 639 }
 640
 641 add_cxxflags(){
 642     append CXXFLAGS $($cflags_filter "$@")
 643 }
 644
 645 add_asflags(){
 646     append ASFLAGS $($asflags_filter "$@")
 647 }
 648
 649 add_ldflags(){
 650     append LDFLAGS $($ldflags_filter "$@")
 651 }
 652
 653 add_extralibs(){
 654     prepend extralibs $($ldflags_filter "$@")
 655 }
 656
 657 add_host_cflags(){
 658     append host_cflags $($host_cflags_filter "$@")
 659 }
 660
 661 add_host_ldflags(){
 662     append host_ldflags $($host_ldflags_filter "$@")
 663 }
 664
 665 check_cmd(){
 666     log "$@"
 667     "$@" >> $logfile 2>&1
 668 }
 669
 670 check_cc(){
 671     log check_cc "$@"
 672     cat > $TMPC
 673     log_file $TMPC
 674     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 675 }
 676
 677 check_cxx(){
 678     log check_cxx "$@"
 679     cat > $TMPCPP
 680     log_file $TMPCPP
 681     check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" -c -o $TMPO $TMPCPP
 682 }
 683
 684 check_cpp(){
 685     log check_cpp "$@"
 686     cat > $TMPC
 687     log_file $TMPC
 688     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 689 }
 690
 691 check_as(){
 692     log check_as "$@"
 693     cat > $TMPC
 694     log_file $TMPC
 695     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 696 }
 697
 698 check_asm(){
 699     log check_asm "$@"
 700     name="$1"
 701     code="$2"
 702     shift 2
 703     disable $name
 704     check_as "$@" <<EOF && enable $name
 705 void foo(void){ __asm__ volatile($code); }
 706 EOF
 707 }
 708
 709 check_yasm(){
 710     log check_yasm "$@"
 711     echo "$1" > $TMPS
 712     log_file $TMPS
 713     shift 1
 714     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 715 }
 716
 717 check_ld(){
 718     log check_ld "$@"
 719     type=$1
 720     shift 1
 721     flags=''
 722     libs=''
 723     for f; do
 724         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 725     done
 726     check_$type $($cflags_filter $flags) || return
 727     flags=$($ldflags_filter $flags)
 728     libs=$($ldflags_filter $libs)
 729     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
 730 }
 731
 732 check_code(){
 733     log check_code "$@"
 734     check=$1
 735     headers=$2
 736     code=$3
 737     shift 3
 738     {
 739         for hdr in $headers; do
 740             echo "#include <$hdr>"
 741         done
 742         echo "int main(void) { $code; return 0; }"
 743     } | check_$check "$@"
 744 }
 745
 746 check_cppflags(){
 747     log check_cppflags "$@"
 748     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 749 int x;
 750 EOF
 751 }
 752
 753 check_cflags(){
 754     log check_cflags "$@"
 755     set -- $($cflags_filter "$@")
 756     check_cc "$@" <<EOF && append CFLAGS "$@"
 757 int x;
 758 EOF
 759 }
 760
 761 check_cxxflags(){
 762     log check_cxxflags "$@"
 763     set -- $($cflags_filter "$@")
 764     check_cxx "$@" <<EOF && append CXXFLAGS "$@"
 765 int x;
 766 EOF
 767 }
 768
 769 test_ldflags(){
 770     log test_ldflags "$@"
 771     check_ld "cc" "$@" <<EOF
 772 int main(void){ return 0; }
 773 EOF
 774 }
 775
 776 check_ldflags(){
 777     log check_ldflags "$@"
 778     test_ldflags "$@" && add_ldflags "$@"
 779 }
 780
 781 check_header(){
 782     log check_header "$@"
 783     header=$1
 784     shift
 785     disable_safe $header
 786     check_cpp "$@" <<EOF && enable_safe $header
 787 #include <$header>
 788 int x;
 789 EOF
 790 }
 791
 792 check_func(){
 793     log check_func "$@"
 794     func=$1
 795     shift
 796     disable $func
 797     check_ld "cc" "$@" <<EOF && enable $func
 798 extern int $func();
 799 int main(void){ $func(); }
 800 EOF
 801 }
 802
 803 check_mathfunc(){
 804     log check_mathfunc "$@"
 805     func=$1
 806     shift
 807     disable $func
 808     check_ld "cc" "$@" <<EOF && enable $func
 809 #include <math.h>
 810 float foo(float f) { return $func(f); }
 811 int main(void){ return (int) foo; }
 812 EOF
 813 }
 814
 815 check_func_headers(){
 816     log check_func_headers "$@"
 817     headers=$1
 818     funcs=$2
 819     shift 2
 820     {
 821         for hdr in $headers; do
 822             echo "#include <$hdr>"
 823         done
 824         for func in $funcs; do
 825             echo "long check_$func(void) { return (long) $func; }"
 826         done
 827         echo "int main(void) { return 0; }"
 828     } | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
 829 }
 830
 831 check_class_headers_cpp(){
 832     log check_class_headers_cpp "$@"
 833     headers=$1
 834     classes=$2
 835     shift 2
 836     {
 837         for hdr in $headers; do
 838             echo "#include <$hdr>"
 839         done
 840         echo "int main(void) { "
 841         i=1
 842         for class in $classes; do
 843             echo "$class obj$i;"
 844             i=$(expr $i + 1)
 845         done
 846         echo "return 0; }"
 847     } | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
 848 }
 849
 850 check_cpp_condition(){
 851     log check_cpp_condition "$@"
 852     header=$1
 853     condition=$2
 854     shift 2
 855     check_cpp "$@" <<EOF
 856 #include <$header>
 857 #if !($condition)
 858 #error "unsatisfied condition: $condition"
 859 #endif
 860 EOF
 861 }
 862
 863 check_lib(){
 864     log check_lib "$@"
 865     header="$1"
 866     func="$2"
 867     shift 2
 868     check_header $header && check_func $func "$@" && add_extralibs "$@"
 869 }
 870
 871 check_lib2(){
 872     log check_lib2 "$@"
 873     headers="$1"
 874     funcs="$2"
 875     shift 2
 876     check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
 877 }
 878
 879 check_lib_cpp(){
 880     log check_lib_cpp "$@"
 881     headers="$1"
 882     classes="$2"
 883     shift 2
 884     check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
 885 }
 886
 887 check_pkg_config(){
 888     log check_pkg_config "$@"
 889     pkg="$1"
 890     headers="$2"
 891     funcs="$3"
 892     shift 3
 893     $pkg_config --exists $pkg 2>/dev/null || return
 894     pkg_cflags=$($pkg_config --cflags $pkg)
 895     pkg_libs=$($pkg_config --libs $pkg)
 896     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
 897         set_safe ${pkg}_cflags $pkg_cflags   &&
 898         set_safe ${pkg}_libs   $pkg_libs
 899 }
 900
 901 check_exec(){
 902     check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 903 }
 904
 905 check_exec_crash(){
 906     code=$(cat)
 907
 908     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 909     # are safe but may not be available everywhere.  Thus we use
 910     # raise(SIGTERM) instead.  The check is run in a subshell so we
 911     # can redirect the "Terminated" message from the shell.  SIGBUS
 912     # is not defined by standard C so it is used conditionally.
 913
 914     (check_exec "$@") >> $logfile 2>&1 <<EOF
 915 #include <signal.h>
 916 static void sighandler(int sig){
 917     raise(SIGTERM);
 918 }
 919 int func(void){
 920     $code
 921 }
 922 int (*func_ptr)(void) = func;
 923 int main(void){
 924     signal(SIGILL, sighandler);
 925     signal(SIGFPE, sighandler);
 926     signal(SIGSEGV, sighandler);
 927 #ifdef SIGBUS
 928     signal(SIGBUS, sighandler);
 929 #endif
 930     return func_ptr();
 931 }
 932 EOF
 933 }
 934
 935 check_type(){
 936     log check_type "$@"
 937     headers=$1
 938     type=$2
 939     shift 2
 940     disable_safe "$type"
 941     check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
 942 }
 943
 944 check_struct(){
 945     log check_type "$@"
 946     headers=$1
 947     struct=$2
 948     member=$3
 949     shift 3
 950     disable_safe "${struct}_${member}"
 951     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
 952         enable_safe "${struct}_${member}"
 953 }
 954
 955 require(){
 956     name="$1"
 957     header="$2"
 958     func="$3"
 959     shift 3
 960     check_lib $header $func "$@" || die "ERROR: $name not found"
 961 }
 962
 963 require2(){
 964     name="$1"
 965     headers="$2"
 966     func="$3"
 967     shift 3
 968     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 969 }
 970
 971 require_cpp(){
 972     name="$1"
 973     headers="$2"
 974     classes="$3"
 975     shift 3
 976     check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
 977 }
 978
 979 require_pkg_config(){
 980     pkg="$1"
 981     check_pkg_config "$@" || die "ERROR: $pkg not found"
 982     add_cflags    $(get_safe ${pkg}_cflags)
 983     add_extralibs $(get_safe ${pkg}_libs)
 984 }
 985
 986 check_host_cc(){
 987     log check_host_cc "$@"
 988     cat > $TMPC
 989     log_file $TMPC
 990     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 991 }
 992
 993 check_host_cflags(){
 994     log check_host_cflags "$@"
 995     set -- $($host_cflags_filter "$@")
 996     check_host_cc "$@" <<EOF && append host_cflags "$@"
 997 int x;
 998 EOF
 999 }
1000
1001 apply(){
1002     file=$1
1003     shift
1004     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1005 }
1006
1007 cp_if_changed(){
1008     cmp -s "$1" "$2" && echo "$2 is unchanged" && return
1009     mkdir -p "$(dirname $2)"
1010     cp -f "$1" "$2"
1011 }
1012
1013 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1014 # system-dependent things.
1015
1016 COMPONENT_LIST="
1017     bsfs
1018     decoders
1019     demuxers
1020     encoders
1021     filters
1022     hwaccels
1023     indevs
1024     muxers
1025     outdevs
1026     parsers
1027     protocols
1028 "
1029
1030 PROGRAM_LIST="
1031     ffplay
1032     ffprobe
1033     ffserver
1034     ffmpeg
1035 "
1036
1037 CONFIG_LIST="
1038     $COMPONENT_LIST
1039     $PROGRAM_LIST
1040     ac3dsp
1041     avcodec
1042     avdevice
1043     avfilter
1044     avformat
1045     avresample
1046     avisynth
1047     bzlib
1048     crystalhd
1049     dct
1050     doc
1051     dwt
1052     dxva2
1053     fast_unaligned
1054     fastdiv
1055     fft
1056     fontconfig
1057     frei0r
1058     gnutls
1059     gpl
1060     gray
1061     hardcoded_tables
1062     libaacplus
1063     libass
1064     libbluray
1065     libcaca
1066     libcdio
1067     libcelt
1068     libdc1394
1069     libfaac
1070     libfdk_aac
1071     libfreetype
1072     libgsm
1073     libiec61883
1074     libilbc
1075     libmodplug
1076     libmp3lame
1077     libnut
1078     libopencore_amrnb
1079     libopencore_amrwb
1080     libopencv
1081     libopenjpeg
1082     libopus
1083     libpulse
1084     librtmp
1085     libschroedinger
1086     libspeex
1087     libstagefright_h264
1088     libtheora
1089     libutvideo
1090     libv4l2
1091     libvo_aacenc
1092     libvo_amrwbenc
1093     libvorbis
1094     libvpx
1095     libx264
1096     libxavs
1097     libxvid
1098     lsp
1099     mdct
1100     memalign_hack
1101     memory_poisoning
1102     mpegaudiodsp
1103     network
1104     nonfree
1105     openal
1106     openssl
1107     pic
1108     postproc
1109     rdft
1110     rtpdec
1111     runtime_cpudetect
1112     safe_bitstream_reader
1113     shared
1114     sinewin
1115     small
1116     sram
1117     static
1118     swresample
1119     swscale
1120     swscale_alpha
1121     thumb
1122     vaapi
1123     vda
1124     vdpau
1125     version3
1126     xmm_clobber_test
1127     x11grab
1128     zlib
1129 "
1130
1131 THREADS_LIST='
1132     pthreads
1133     w32threads
1134     os2threads
1135 '
1136
1137 ARCH_LIST='
1138     alpha
1139     arm
1140     avr32
1141     avr32_ap
1142     avr32_uc
1143     bfin
1144     ia64
1145     m68k
1146     mips
1147     mips64
1148     parisc
1149     ppc
1150     ppc64
1151     s390
1152     sh4
1153     sparc
1154     sparc64
1155     tomi
1156     x86
1157     x86_32
1158     x86_64
1159 '
1160
1161 ARCH_EXT_LIST='
1162     altivec
1163     amd3dnow
1164     amd3dnowext
1165     armv5te
1166     armv6
1167     armv6t2
1168     armvfp
1169     avx
1170     mmi
1171     mmx
1172     mmx2
1173     neon
1174     ppc4xx
1175     sse
1176     ssse3
1177     vfpv3
1178     vis
1179     mipsfpu
1180     mips32r2
1181     mipsdspr1
1182     mipsdspr2
1183 '
1184
1185 HAVE_LIST_PUB='
1186     bigendian
1187     fast_unaligned
1188 '
1189
1190 HAVE_LIST="
1191     $ARCH_EXT_LIST
1192     $HAVE_LIST_PUB
1193     $THREADS_LIST
1194     aligned_malloc
1195     aligned_stack
1196     alsa_asoundlib_h
1197     altivec_h
1198     arpa_inet_h
1199     asm_mod_y
1200     asm_types_h
1201     attribute_may_alias
1202     attribute_packed
1203     cbrtf
1204     clock_gettime
1205     closesocket
1206     cmov
1207     cpuid
1208     dcbzl
1209     dev_bktr_ioctl_bt848_h
1210     dev_bktr_ioctl_meteor_h
1211     dev_ic_bt8xx_h
1212     dev_video_bktr_ioctl_bt848_h
1213     dev_video_meteor_ioctl_meteor_h
1214     dlfcn_h
1215     dlopen
1216     dos_paths
1217     dxva_h
1218     ebp_available
1219     ebx_available
1220     exp2
1221     exp2f
1222     fast_64bit
1223     fast_clz
1224     fast_cmov
1225     fcntl
1226     fork
1227     getaddrinfo
1228     gethrtime
1229     getopt
1230     GetProcessAffinityMask
1231     GetProcessMemoryInfo
1232     GetProcessTimes
1233     GetSystemTimeAsFileTime
1234     getrusage
1235     gettimeofday
1236     glob
1237     gnu_as
1238     ibm_asm
1239     inet_aton
1240     inline_asm
1241     isatty
1242     isinf
1243     isnan
1244     jack_port_get_latency_range
1245     kbhit
1246     ldbrx
1247     libdc1394_1
1248     libdc1394_2
1249     llrint
1250     llrintf
1251     local_aligned_16
1252     local_aligned_8
1253     localtime_r
1254     log2
1255     log2f
1256     loongson
1257     lrint
1258     lrintf
1259     lzo1x_999_compress
1260     machine_ioctl_bt848_h
1261     machine_ioctl_meteor_h
1262     makeinfo
1263     malloc_h
1264     MapViewOfFile
1265     memalign
1266     mkstemp
1267     mm_empty
1268     mmap
1269     nanosleep
1270     netinet_sctp_h
1271     PeekNamedPipe
1272     pod2man
1273     poll_h
1274     posix_memalign
1275     pthread_cancel
1276     rdtsc
1277     rint
1278     round
1279     roundf
1280     rweflags
1281     sched_getaffinity
1282     sdl
1283     sdl_video_size
1284     setmode
1285     setrlimit
1286     Sleep
1287     sndio_h
1288     socklen_t
1289     soundcard_h
1290     strerror_r
1291     strptime
1292     struct_addrinfo
1293     struct_group_source_req
1294     struct_ip_mreq_source
1295     struct_ipv6_mreq
1296     struct_pollfd
1297     struct_rusage_ru_maxrss
1298     struct_sockaddr_in6
1299     struct_sockaddr_sa_len
1300     struct_sockaddr_storage
1301     struct_v4l2_frmivalenum_discrete
1302     symver
1303     symver_asm_label
1304     symver_gnu_asm
1305     sysconf
1306     sysctl
1307     sys_mman_h
1308     sys_param_h
1309     sys_resource_h
1310     sys_select_h
1311     sys_soundcard_h
1312     sys_time_h
1313     sys_videoio_h
1314     termios_h
1315     texi2html
1316     threads
1317     trunc
1318     truncf
1319     unistd_h
1320     usleep
1321     vfp_args
1322     VirtualAlloc
1323     windows_h
1324     winsock2_h
1325     xform_asm
1326     xgetbv
1327     xmm_clobbers
1328     yasm
1329 "
1330
1331 # options emitted with CONFIG_ prefix but not available on command line
1332 CONFIG_EXTRA="
1333     aandct
1334     avutil
1335     golomb
1336     gplv3
1337     h264chroma
1338     h264dsp
1339     h264pred
1340     h264qpel
1341     huffman
1342     lgplv3
1343     lpc
1344     vp3dsp
1345 "
1346
1347 CMDLINE_SELECT="
1348     $ARCH_EXT_LIST
1349     $CONFIG_LIST
1350     $THREADS_LIST
1351     asm
1352     coverage
1353     cross_compile
1354     debug
1355     extra_warnings
1356     logging
1357     optimizations
1358     stripping
1359     symver
1360     yasm
1361 "
1362
1363 PATHS_LIST='
1364     bindir
1365     datadir
1366     incdir
1367     libdir
1368     mandir
1369     prefix
1370     shlibdir
1371 '
1372
1373 CMDLINE_SET="
1374     $PATHS_LIST
1375     ar
1376     arch
1377     as
1378     assert_level
1379     build_suffix
1380     cc
1381     cpu
1382     cross_prefix
1383     cxx
1384     dep_cc
1385     extra_version
1386     host_cc
1387     host_cflags
1388     host_ldflags
1389     host_libs
1390     host_os
1391     install
1392     ld
1393     logfile
1394     malloc_prefix
1395     nm
1396     optflags
1397     pkg_config
1398     postproc_version
1399     progs_suffix
1400     random_seed
1401     samples
1402     strip
1403     sysinclude
1404     sysroot
1405     target_exec
1406     target_os
1407     target_path
1408     valgrind
1409     yasmexe
1410 "
1411
1412 CMDLINE_APPEND="
1413     extra_cflags
1414     extra_cxxflags
1415 "
1416
1417 # code dependency declarations
1418
1419 # architecture extensions
1420
1421 armv5te_deps="arm"
1422 armv6_deps="arm"
1423 armv6t2_deps="arm"
1424 armvfp_deps="arm"
1425 neon_deps="arm"
1426 vfpv3_deps="armvfp"
1427
1428 mipsfpu_deps="mips"
1429 mips32r2_deps="mips"
1430 mipsdspr1_deps="mips"
1431 mipsdspr2_deps="mips"
1432 mmi_deps="mips"
1433
1434 altivec_deps="ppc"
1435 ppc4xx_deps="ppc"
1436
1437 vis_deps="sparc"
1438
1439 x86_64_suggest="cmov fast_cmov"
1440 amd3dnow_deps="mmx"
1441 amd3dnowext_deps="amd3dnow"
1442 mmx_deps="x86"
1443 mmx2_deps="mmx"
1444 sse_deps="mmx"
1445 ssse3_deps="sse"
1446 avx_deps="ssse3"
1447
1448 aligned_stack_if_any="ppc x86"
1449 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1450 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1451 fast_unaligned_if_any="armv6 ppc x86"
1452
1453 inline_asm_deps="!tms470"
1454 need_memalign="altivec neon sse"
1455
1456 symver_if_any="symver_asm_label symver_gnu_asm"
1457
1458 # subsystems
1459 dct_select="rdft"
1460 mdct_select="fft"
1461 rdft_select="fft"
1462 mpegaudiodsp_select="dct"
1463
1464 # decoders / encoders / hardware accelerators
1465 aac_decoder_select="mdct sinewin"
1466 aac_encoder_select="mdct sinewin"
1467 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1468 ac3_decoder_select="mdct ac3dsp ac3_parser"
1469 ac3_encoder_select="mdct ac3dsp"
1470 ac3_fixed_encoder_select="mdct ac3dsp"
1471 alac_encoder_select="lpc"
1472 amrnb_decoder_select="lsp"
1473 amrwb_decoder_select="lsp"
1474 amv_encoder_select="aandct"
1475 atrac1_decoder_select="mdct sinewin"
1476 atrac3_decoder_select="mdct"
1477 binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1478 binkaudio_rdft_decoder_select="mdct rdft sinewin"
1479 cavs_decoder_select="golomb"
1480 cook_decoder_select="mdct sinewin"
1481 cscd_decoder_suggest="zlib"
1482 dca_decoder_select="mdct"
1483 dirac_decoder_select="dwt golomb"
1484 dnxhd_encoder_select="aandct"
1485 dxa_decoder_select="zlib"
1486 eac3_decoder_select="ac3_decoder"
1487 eac3_encoder_select="mdct ac3dsp"
1488 eamad_decoder_select="aandct"
1489 eatgq_decoder_select="aandct"
1490 eatqi_decoder_select="aandct"
1491 exr_decoder_select="zlib"
1492 ffv1_decoder_select="golomb"
1493 flac_decoder_select="golomb"
1494 flac_encoder_select="golomb lpc"
1495 flashsv_decoder_select="zlib"
1496 flashsv_encoder_select="zlib"
1497 flashsv2_encoder_select="zlib"
1498 flashsv2_decoder_select="zlib"
1499 flv_decoder_select="h263_decoder"
1500 flv_encoder_select="h263_encoder"
1501 fraps_decoder_select="huffman"
1502 h261_encoder_select="aandct"
1503 h263_decoder_select="h263_parser"
1504 h263_encoder_select="aandct"
1505 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1506 h263i_decoder_select="h263_decoder"
1507 h263p_encoder_select="h263_encoder"
1508 h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1509 h264_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1510 h264_dxva2_hwaccel_deps="dxva2api_h"
1511 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1512 h264_vaapi_hwaccel_select="vaapi h264_decoder"
1513 h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1514 h264_vda_hwaccel_select="vda h264_decoder"
1515 h264_vdpau_decoder_select="vdpau h264_decoder"
1516 iac_decoder_select="fft mdct sinewin"
1517 imc_decoder_select="fft mdct sinewin"
1518 jpegls_decoder_select="golomb"
1519 jpegls_encoder_select="golomb"
1520 ljpeg_encoder_select="aandct"
1521 loco_decoder_select="golomb"
1522 mjpeg_encoder_select="aandct"
1523 mlp_decoder_select="mlp_parser"
1524 mp1_decoder_select="mpegaudiodsp"
1525 mp1float_decoder_select="mpegaudiodsp"
1526 mp2_decoder_select="mpegaudiodsp"
1527 mp2float_decoder_select="mpegaudiodsp"
1528 mp3_decoder_select="mpegaudiodsp"
1529 mp3adu_decoder_select="mpegaudiodsp"
1530 mp3adufloat_decoder_select="mpegaudiodsp"
1531 mp3float_decoder_select="mpegaudiodsp"
1532 mp3on4_decoder_select="mpegaudiodsp"
1533 mp3on4float_decoder_select="mpegaudiodsp"
1534 mpc7_decoder_select="mpegaudiodsp"
1535 mpc8_decoder_select="mpegaudiodsp"
1536 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1537 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1538 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1539 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1540 mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1541 mpeg1video_encoder_select="aandct"
1542 mpeg2_crystalhd_decoder_select="crystalhd"
1543 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1544 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1545 mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1546 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1547 mpeg2video_encoder_select="aandct"
1548 mpeg4_crystalhd_decoder_select="crystalhd"
1549 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1550 mpeg4_encoder_select="h263_encoder"
1551 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1552 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1553 msmpeg4_crystalhd_decoder_select="crystalhd"
1554 msmpeg4v1_decoder_select="h263_decoder"
1555 msmpeg4v1_encoder_select="h263_encoder"
1556 msmpeg4v2_decoder_select="h263_decoder"
1557 msmpeg4v2_encoder_select="h263_encoder"
1558 msmpeg4v3_decoder_select="h263_decoder"
1559 msmpeg4v3_encoder_select="h263_encoder"
1560 nellymoser_decoder_select="mdct sinewin"
1561 nellymoser_encoder_select="mdct sinewin"
1562 png_decoder_select="zlib"
1563 png_encoder_select="zlib"
1564 qcelp_decoder_select="lsp"
1565 qdm2_decoder_select="mdct rdft mpegaudiodsp"
1566 ra_144_encoder_select="lpc"
1567 ralf_decoder_select="golomb"
1568 rv10_decoder_select="h263_decoder"
1569 rv10_encoder_select="h263_encoder"
1570 rv20_decoder_select="h263_decoder"
1571 rv20_encoder_select="h263_encoder"
1572 rv30_decoder_select="golomb h264chroma h264pred h264qpel"
1573 rv40_decoder_select="golomb h264chroma h264pred h264qpel"
1574 shorten_decoder_select="golomb"
1575 sipr_decoder_select="lsp"
1576 snow_decoder_select="dwt"
1577 snow_encoder_select="aandct dwt"
1578 sonic_decoder_select="golomb"
1579 sonic_encoder_select="golomb"
1580 sonic_ls_encoder_select="golomb"
1581 svq1_encoder_select="aandct"
1582 svq3_decoder_select="golomb h264chroma h264dsp h264pred h264qpel"
1583 svq3_decoder_suggest="zlib"
1584 theora_decoder_select="vp3_decoder"
1585 tiff_decoder_suggest="zlib"
1586 tiff_encoder_suggest="zlib"
1587 tscc_decoder_select="zlib"
1588 twinvq_decoder_select="mdct lsp sinewin"
1589 vc1_crystalhd_decoder_select="crystalhd"
1590 vc1_decoder_select="h263_decoder h264chroma h264qpel"
1591 vc1_dxva2_hwaccel_deps="dxva2api_h"
1592 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1593 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1594 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1595 vc1image_decoder_select="vc1_decoder"
1596 vorbis_decoder_select="mdct"
1597 vorbis_encoder_select="mdct"
1598 vp3_decoder_select="vp3dsp"
1599 vp5_decoder_select="vp3dsp"
1600 vp6_decoder_select="huffman vp3dsp"
1601 vp6a_decoder_select="vp6_decoder"
1602 vp6f_decoder_select="vp6_decoder"
1603 vp8_decoder_select="h264pred h264qpel"
1604 wmapro_decoder_select="mdct sinewin"
1605 wmav1_decoder_select="mdct sinewin"
1606 wmav1_encoder_select="mdct sinewin"
1607 wmav2_decoder_select="mdct sinewin"
1608 wmav2_encoder_select="mdct sinewin"
1609 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1610 wmv1_decoder_select="h263_decoder"
1611 wmv1_encoder_select="h263_encoder"
1612 wmv2_decoder_select="h263_decoder"
1613 wmv2_encoder_select="h263_encoder"
1614 wmv3_decoder_select="vc1_decoder"
1615 wmv3_crystalhd_decoder_select="crystalhd"
1616 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1617 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1618 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1619 wmv3image_decoder_select="wmv3_decoder"
1620 zerocodec_decoder_select="zlib"
1621 zlib_decoder_select="zlib"
1622 zlib_encoder_select="zlib"
1623 zmbv_decoder_select="zlib"
1624 zmbv_encoder_select="zlib"
1625
1626 crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1627 vaapi_deps="va_va_h"
1628 vda_deps="VideoDecodeAcceleration_VDADecoder_h pthreads"
1629 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1630
1631 # parsers
1632 h264_parser_select="golomb h264dsp h264pred"
1633
1634 # external libraries
1635 libaacplus_encoder_deps="libaacplus"
1636 libcelt_decoder_deps="libcelt"
1637 libfaac_encoder_deps="libfaac"
1638 libfdk_aac_encoder_deps="libfdk_aac"
1639 libgsm_decoder_deps="libgsm"
1640 libgsm_encoder_deps="libgsm"
1641 libgsm_ms_decoder_deps="libgsm"
1642 libgsm_ms_encoder_deps="libgsm"
1643 libilbc_decoder_deps="libilbc"
1644 libilbc_encoder_deps="libilbc"
1645 libmodplug_demuxer_deps="libmodplug"
1646 libmp3lame_encoder_deps="libmp3lame"
1647 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1648 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1649 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1650 libopenjpeg_decoder_deps="libopenjpeg"
1651 libopenjpeg_encoder_deps="libopenjpeg"
1652 libopus_decoder_deps="libopus"
1653 libschroedinger_decoder_deps="libschroedinger"
1654 libschroedinger_encoder_deps="libschroedinger"
1655 libspeex_decoder_deps="libspeex"
1656 libspeex_encoder_deps="libspeex"
1657 libstagefright_h264_decoder_deps="libstagefright_h264"
1658 libtheora_encoder_deps="libtheora"
1659 libvo_aacenc_encoder_deps="libvo_aacenc"
1660 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1661 libvorbis_decoder_deps="libvorbis"
1662 libvorbis_encoder_deps="libvorbis"
1663 libvpx_decoder_deps="libvpx"
1664 libvpx_encoder_deps="libvpx"
1665 libx264_encoder_deps="libx264"
1666 libx264rgb_encoder_deps="libx264"
1667 libxavs_encoder_deps="libxavs"
1668 libxvid_encoder_deps="libxvid"
1669 libutvideo_decoder_deps="libutvideo"
1670 libutvideo_encoder_deps="libutvideo"
1671
1672 # demuxers / muxers
1673 ac3_demuxer_select="ac3_parser"
1674 asf_stream_muxer_select="asf_muxer"
1675 avisynth_demuxer_deps="avisynth"
1676 dirac_demuxer_select="dirac_parser"
1677 eac3_demuxer_select="ac3_parser"
1678 flac_demuxer_select="flac_parser"
1679 ipod_muxer_select="mov_muxer"
1680 libnut_demuxer_deps="libnut"
1681 libnut_muxer_deps="libnut"
1682 matroska_audio_muxer_select="matroska_muxer"
1683 matroska_demuxer_suggest="zlib bzlib"
1684 mov_demuxer_suggest="zlib"
1685 mp3_demuxer_select="mpegaudio_parser"
1686 mp4_muxer_select="mov_muxer"
1687 mpegts_muxer_select="adts_muxer latm_muxer"
1688 mpegtsraw_demuxer_select="mpegts_demuxer"
1689 mxf_d10_muxer_select="mxf_muxer"
1690 ogg_demuxer_select="golomb"
1691 psp_muxer_select="mov_muxer"
1692 rtp_demuxer_select="sdp_demuxer"
1693 rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1694 rtsp_demuxer_select="http_protocol rtpdec"
1695 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1696 sap_demuxer_select="sdp_demuxer"
1697 sap_muxer_select="rtp_muxer rtp_protocol"
1698 sdp_demuxer_select="rtpdec"
1699 spdif_muxer_select="aac_parser"
1700 tg2_muxer_select="mov_muxer"
1701 tgp_muxer_select="mov_muxer"
1702 w64_demuxer_deps="wav_demuxer"
1703
1704 # indevs / outdevs
1705 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1706 alsa_outdev_deps="alsa_asoundlib_h"
1707 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1708 caca_outdev_deps="libcaca"
1709 dshow_indev_deps="IBaseFilter"
1710 dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid"
1711 dv1394_indev_deps="dv1394 dv_demuxer"
1712 fbdev_indev_deps="linux_fb_h"
1713 iec61883_indev_deps="libiec61883"
1714 jack_indev_deps="jack_jack_h sem_timedwait"
1715 lavfi_indev_deps="avfilter"
1716 libcdio_indev_deps="libcdio"
1717 libdc1394_indev_deps="libdc1394"
1718 libv4l2_indev_deps="libv4l2"
1719 openal_indev_deps="openal"
1720 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1721 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1722 pulse_indev_deps="libpulse"
1723 sdl_outdev_deps="sdl"
1724 sndio_indev_deps="sndio_h"
1725 sndio_outdev_deps="sndio_h"
1726 v4l_indev_deps="linux_videodev_h"
1727 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1728 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1729 vfwcap_indev_extralibs="-lavicap32"
1730 x11_grab_device_indev_deps="x11grab"
1731
1732 # protocols
1733 bluray_protocol_deps="libbluray"
1734 ffrtmphttp_protocol_deps="!librtmp_protocol"
1735 ffrtmphttp_protocol_select="http_protocol"
1736 gopher_protocol_deps="network"
1737 httpproxy_protocol_deps="network"
1738 httpproxy_protocol_select="tcp_protocol"
1739 http_protocol_deps="network"
1740 http_protocol_select="tcp_protocol"
1741 https_protocol_select="tls_protocol"
1742 librtmp_protocol_deps="librtmp"
1743 librtmpe_protocol_deps="librtmp"
1744 librtmps_protocol_deps="librtmp"
1745 librtmpt_protocol_deps="librtmp"
1746 librtmpte_protocol_deps="librtmp"
1747 mmsh_protocol_select="http_protocol"
1748 mmst_protocol_deps="network"
1749 rtmp_protocol_deps="!librtmp_protocol"
1750 rtmp_protocol_select="tcp_protocol"
1751 rtmps_protocol_deps="!librtmp_protocol"
1752 rtmps_protocol_select="tls_protocol"
1753 rtmpt_protocol_select="ffrtmphttp_protocol"
1754 rtmpts_protocol_select="ffrtmphttp_protocol"
1755 rtp_protocol_select="udp_protocol"
1756 sctp_protocol_deps="network netinet_sctp_h"
1757 tcp_protocol_deps="network"
1758 tls_protocol_deps_any="openssl gnutls"
1759 tls_protocol_select="tcp_protocol"
1760 udp_protocol_deps="network"
1761
1762 # filters
1763 aconvert_filter_deps="swresample"
1764 amovie_filter_deps="avcodec avformat"
1765 aresample_filter_deps="swresample"
1766 ass_filter_deps="libass"
1767 asyncts_filter_deps="avresample"
1768 atempo_filter_deps="avcodec rdft"
1769 blackframe_filter_deps="gpl"
1770 boxblur_filter_deps="gpl"
1771 colormatrix_filter_deps="gpl"
1772 cropdetect_filter_deps="gpl"
1773 delogo_filter_deps="gpl"
1774 deshake_filter_deps="avcodec"
1775 drawtext_filter_deps="libfreetype"
1776 frei0r_filter_deps="frei0r dlopen"
1777 frei0r_filter_extralibs='$ldl'
1778 frei0r_src_filter_deps="frei0r dlopen"
1779 frei0r_src_filter_extralibs='$ldl'
1780 hqdn3d_filter_deps="gpl"
1781 movie_filter_deps="avcodec avformat"
1782 mp_filter_deps="gpl avcodec swscale postproc"
1783 mptestsrc_filter_deps="gpl"
1784 negate_filter_deps="lut_filter"
1785 resample_filter_deps="avresample"
1786 ocv_filter_deps="libopencv"
1787 pan_filter_deps="swresample"
1788 removelogo_filter_deps="avcodec avformat swscale"
1789 scale_filter_deps="swscale"
1790 select_filter_deps="avcodec"
1791 super2xsai_filter_deps="gpl"
1792 tinterlace_filter_deps="gpl"
1793 yadif_filter_deps="gpl"
1794
1795 # libraries
1796 avdevice_deps="avcodec avformat"
1797 avformat_deps="avcodec"
1798 postproc_deps="gpl"
1799
1800 # programs
1801 ffmpeg_deps="avcodec avfilter avformat swscale swresample"
1802 ffmpeg_select="buffersink_filter format_filter aformat_filter
1803                setpts_filter null_filter anull_filter abuffersink_filter"
1804 ffplay_deps="avcodec avformat swscale swresample sdl"
1805 ffplay_select="buffersink_filter rdft"
1806 ffprobe_deps="avcodec avformat"
1807 ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1808 ffserver_extralibs='$ldl'
1809
1810 doc_deps_any="texi2html makeinfo pod2man"
1811
1812 # tests
1813 colormatrix1_test_deps="colormatrix_filter"
1814 colormatrix2_test_deps="colormatrix_filter"
1815 flashsv2_test_deps="zlib"
1816 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1817 mpng_test_deps="zlib"
1818 pp_test_deps="mp_filter"
1819 pp2_test_deps="mp_filter"
1820 pp3_test_deps="mp_filter"
1821 pp4_test_deps="mp_filter"
1822 pp5_test_deps="mp_filter"
1823 pp6_test_deps="mp_filter"
1824 seek_lavf_mxf_d10_test_deps="mxf_d10_test"
1825 zlib_test_deps="zlib"
1826 zmbv_test_deps="zlib"
1827
1828 test_deps(){
1829     suf1=$1
1830     suf2=$2
1831     shift 2
1832     for v; do
1833         dep=${v%=*}
1834         tests=${v#*=}
1835         for name in ${tests}; do
1836             append ${name}_test_deps ${dep}$suf1 ${dep}$suf2
1837         done
1838     done
1839 }
1840
1841 test_deps _muxer _demuxer                                               \
1842     aiff                                                                \
1843     pcm_alaw=alaw                                                       \
1844     asf                                                                 \
1845     au                                                                  \
1846     avi                                                                 \
1847     dv=dv_fmt                                                           \
1848     ffm                                                                 \
1849     flv=flv_fmt                                                         \
1850     gxf                                                                 \
1851     matroska=mkv                                                        \
1852     mmf                                                                 \
1853     mov="mov ismv"                                                      \
1854     pcm_mulaw=mulaw                                                     \
1855     mxf="mxf mxf_d10"                                                   \
1856     nut                                                                 \
1857     ogg="ogg ogg_vp3"                                                   \
1858     rawvideo=pixfmt                                                     \
1859     rm                                                                  \
1860     swf                                                                 \
1861     mpegts=ts                                                           \
1862     voc                                                                 \
1863     wav                                                                 \
1864     yuv4mpegpipe=yuv4mpeg                                               \
1865
1866 # default parameters
1867
1868 logfile="config.log"
1869
1870 # installation paths
1871 prefix_default="/usr/local"
1872 bindir_default='${prefix}/bin'
1873 datadir_default='${prefix}/share/ffmpeg'
1874 incdir_default='${prefix}/include'
1875 libdir_default='${prefix}/lib'
1876 mandir_default='${prefix}/share/man'
1877 shlibdir_default="$libdir_default"
1878 postproc_version_default="current"
1879
1880 # toolchain
1881 ar_default="ar"
1882 cc_default="gcc"
1883 cxx_default="g++"
1884 host_cc_default="gcc"
1885 install="install"
1886 ln_s="ln -sf"
1887 nm_default="nm"
1888 objformat="elf"
1889 pkg_config_default=pkg-config
1890 ranlib="ranlib"
1891 strip_default="strip"
1892 yasmexe_default="yasm"
1893
1894 nm_opts='-g'
1895 nogas=":"
1896
1897 # machine
1898 arch_default=$(uname -m)
1899 cpu="generic"
1900
1901 # OS
1902 target_os_default=$(tolower $(uname -s))
1903 host_os=$target_os_default
1904
1905 # alternative libpostproc version
1906 ALT_PP_VER_MAJOR=51
1907 ALT_PP_VER_MINOR=2
1908 ALT_PP_VER_MICRO=101
1909 ALT_PP_VER=$ALT_PP_VER_MAJOR.$ALT_PP_VER_MINOR.$ALT_PP_VER_MICRO
1910
1911 # configurable options
1912 enable $PROGRAM_LIST
1913
1914 enable avcodec
1915 enable avdevice
1916 enable avfilter
1917 enable avformat
1918 enable avutil
1919 enable postproc
1920 enable stripping
1921 enable swresample
1922 enable swscale
1923
1924 enable asm
1925 enable debug
1926 enable doc
1927 enable fastdiv
1928 enable network
1929 enable optimizations
1930 enable safe_bitstream_reader
1931 enable static
1932 enable swscale_alpha
1933
1934 # build settings
1935 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1936 FFSERVERLDFLAGS=-Wl,-E
1937 LIBPREF="lib"
1938 LIBSUF=".a"
1939 FULLNAME='$(NAME)$(BUILDSUF)'
1940 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1941 SLIBPREF="lib"
1942 SLIBSUF=".so"
1943 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1944 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1945 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1946 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1947 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
1948 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
1949
1950 asflags_filter=echo
1951 cflags_filter=echo
1952 ldflags_filter=echo
1953
1954 AS_O='-o $@'
1955 CC_O='-o $@'
1956 CXX_O='-o $@'
1957
1958 host_cflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600 -O3 -g'
1959 host_libs='-lm'
1960 host_cflags_filter=echo
1961 host_ldflags_filter=echo
1962
1963 target_path='$(CURDIR)'
1964
1965 # since the object filename is not given with the -MM flag, the compiler
1966 # is only able to print the basename, and we must add the path ourselves
1967 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1968 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1969
1970 # find source path
1971 if test -f configure; then
1972     source_path=.
1973 else
1974     source_path=$(cd $(dirname "$0"); pwd)
1975     echo "$source_path" | grep -q '[[:blank:]]' &&
1976         die "Out of tree builds are impossible with whitespace in source path."
1977     test -e "$source_path/config.h" &&
1978         die "Out of tree builds are impossible with config.h in source dir."
1979 fi
1980
1981 for v in "$@"; do
1982     r=${v#*=}
1983     l=${v%"$r"}
1984     r=$(sh_quote "$r")
1985     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1986 done
1987
1988 find_things(){
1989     thing=$1
1990     pattern=$2
1991     file=$source_path/$3
1992     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1993 }
1994
1995 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1996 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1997 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1998 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1999 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
2000 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2001 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2002 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2003 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2004 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
2005 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2006
2007 ALL_COMPONENTS="
2008     $BSF_LIST
2009     $DECODER_LIST
2010     $DEMUXER_LIST
2011     $ENCODER_LIST
2012     $FILTER_LIST
2013     $HWACCEL_LIST
2014     $INDEV_LIST
2015     $MUXER_LIST
2016     $OUTDEV_LIST
2017     $PARSER_LIST
2018     $PROTOCOL_LIST
2019 "
2020
2021 find_tests(){
2022     map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
2023 }
2024
2025 LAVF_FATE_TESTS=$(find_tests lavf-fate)
2026 LAVF_TESTS=$(find_tests lavf)
2027 LAVFI_TESTS=$(find_tests lavfi)
2028 SEEK_TESTS=$(find_tests seek seek_)
2029
2030 ALL_TESTS="$LAVF_FATE_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS"
2031
2032 for n in $COMPONENT_LIST; do
2033     v=$(toupper ${n%s})_LIST
2034     eval enable \$$v
2035     eval ${n}_if_any="\$$v"
2036 done
2037
2038 enable $ARCH_EXT_LIST $ALL_TESTS
2039
2040 die_unknown(){
2041     echo "Unknown option \"$1\"."
2042     echo "See $0 --help for available options."
2043     exit 1
2044 }
2045
2046 show_list() {
2047     suffix=_$1
2048     shift
2049     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
2050     exit 0
2051 }
2052
2053 rand_list(){
2054     IFS=', '
2055     set -- $*
2056     unset IFS
2057     for thing; do
2058         comp=${thing%:*}
2059         prob=${thing#$comp}
2060         prob=${prob#:}
2061         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2062         echo "prob ${prob:-0.5}"
2063         printf '%s\n' $comp
2064     done
2065 }
2066
2067 do_random(){
2068     action=$1
2069     shift
2070     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2071     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2072 }
2073
2074 for opt do
2075     optval="${opt#*=}"
2076     case "$opt" in
2077     --extra-ldflags=*) add_ldflags $optval
2078     ;;
2079     --extra-libs=*) add_extralibs $optval
2080     ;;
2081     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
2082     ;;
2083     --enable-debug=*) debuglevel="$optval"
2084     ;;
2085     --disable-everything)
2086     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2087     ;;
2088     --enable-random|--disable-random)
2089     action=${opt%%-random}
2090     do_random ${action#--} $COMPONENT_LIST
2091     ;;
2092     --enable-random=*|--disable-random=*)
2093     action=${opt%%-random=*}
2094     do_random ${action#--} $optval
2095     ;;
2096     --enable-*=*|--disable-*=*)
2097     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2098     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2099     eval list=\$$(toupper $thing)_LIST
2100     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2101     $action $(filter "$name" $list)
2102     ;;
2103     --enable-?*|--disable-?*)
2104     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2105     if is_in $option $COMPONENT_LIST; then
2106         test $action = disable && action=unset
2107         eval $action \$$(toupper ${option%s})_LIST
2108     elif is_in $option $CMDLINE_SELECT; then
2109         $action $option
2110     else
2111         die_unknown $opt
2112     fi
2113     ;;
2114     --list-*)
2115         NAME="${opt#--list-}"
2116         is_in $NAME $COMPONENT_LIST || die_unknown $opt
2117         NAME=${NAME%s}
2118         eval show_list $NAME \$$(toupper $NAME)_LIST
2119     ;;
2120     --help|-h) show_help
2121     ;;
2122     *)
2123     optname="${opt%%=*}"
2124     optname="${optname#--}"
2125     optname=$(echo "$optname" | sed 's/-/_/g')
2126     if is_in $optname $CMDLINE_SET; then
2127         eval $optname='$optval'
2128     elif is_in $optname $CMDLINE_APPEND; then
2129         append $optname "$optval"
2130     else
2131          die_unknown $opt
2132     fi
2133     ;;
2134     esac
2135 done
2136
2137 disabled logging && logfile=/dev/null
2138
2139 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
2140 set >> $logfile
2141
2142 test -n "$cross_prefix" && enable cross_compile
2143
2144 if enabled cross_compile; then
2145     test -n "$arch" && test -n "$target_os" ||
2146         die "Must specify target arch and OS when cross-compiling"
2147 fi
2148
2149 set_default arch target_os postproc_version
2150
2151 # Check if we should build alternative libpostproc version instead of current
2152 if   test "$postproc_version" = $ALT_PP_VER; then
2153   LIBPOSTPROC_VERSION=$ALT_PP_VER
2154   LIBPOSTPROC_VERSION_MAJOR=$ALT_PP_VER_MAJOR
2155   LIBPOSTPROC_VERSION_MINOR=$ALT_PP_VER_MINOR
2156   LIBPOSTPROC_VERSION_MICRO=$ALT_PP_VER_MICRO
2157 elif test "$postproc_version" != current; then
2158   die "Invalid argument to --postproc-version. See --help output."
2159 fi
2160
2161 ar_default="${cross_prefix}${ar_default}"
2162 cc_default="${cross_prefix}${cc_default}"
2163 cxx_default="${cross_prefix}${cxx_default}"
2164 nm_default="${cross_prefix}${nm_default}"
2165 pkg_config_default="${cross_prefix}${pkg_config_default}"
2166 ranlib="${cross_prefix}${ranlib}"
2167 strip_default="${cross_prefix}${strip_default}"
2168
2169 sysinclude_default="${sysroot}/usr/include"
2170
2171 set_default cc cxx nm pkg_config strip sysinclude yasmexe
2172 enabled cross_compile || host_cc_default=$cc
2173 set_default host_cc
2174
2175 if ! $pkg_config --version >/dev/null 2>&1; then
2176     warn "$pkg_config not found, library detection may fail."
2177     pkg_config=false
2178 fi
2179
2180 exesuf() {
2181     case $1 in
2182         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
2183     esac
2184 }
2185
2186 EXESUF=$(exesuf $target_os)
2187 HOSTEXESUF=$(exesuf $host_os)
2188
2189 # set temporary file name
2190 : ${TMPDIR:=$TEMPDIR}
2191 : ${TMPDIR:=$TMP}
2192 : ${TMPDIR:=/tmp}
2193
2194 if ! check_cmd mktemp -u XXXXXX; then
2195     # simple replacement for missing mktemp
2196     # NOT SAFE FOR GENERAL USE
2197     mktemp(){
2198         echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
2199     }
2200 fi
2201
2202 tmpfile(){
2203     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
2204         (set -C; exec > $tmp) 2>/dev/null ||
2205         die "Unable to create temporary file in $TMPDIR."
2206     append TMPFILES $tmp
2207     eval $1=$tmp
2208 }
2209
2210 trap 'rm -f -- $TMPFILES' EXIT
2211
2212 tmpfile TMPASM .asm
2213 tmpfile TMPC   .c
2214 tmpfile TMPCPP .cpp
2215 tmpfile TMPE   $EXESUF
2216 tmpfile TMPH   .h
2217 tmpfile TMPO   .o
2218 tmpfile TMPS   .S
2219 tmpfile TMPSH  .sh
2220 tmpfile TMPV   .ver
2221
2222 unset -f mktemp
2223
2224 chmod +x $TMPE
2225
2226 # make sure we can execute files in $TMPDIR
2227 cat > $TMPSH 2>> $logfile <<EOF
2228 #! /bin/sh
2229 EOF
2230 chmod +x $TMPSH >> $logfile 2>&1
2231 if ! $TMPSH >> $logfile 2>&1; then
2232     cat <<EOF
2233 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
2234 variable to another directory and make sure that it is not mounted noexec.
2235 EOF
2236     die "Sanity test failed."
2237 fi
2238
2239 pgi_flags(){
2240     for flag; do
2241         case $flag in
2242             -fomit-frame-pointer) echo -Mnoframe ;;
2243             -g)                   echo -gopt ;;
2244             *)                    echo $flag ;;
2245         esac
2246     done
2247 }
2248
2249 suncc_flags(){
2250     for flag; do
2251         case $flag in
2252             -march=*|-mcpu=*)
2253                 case "${flag#*=}" in
2254                     native)                   echo -xtarget=native       ;;
2255                     v9|niagara)               echo -xarch=sparc          ;;
2256                     ultrasparc)               echo -xarch=sparcvis       ;;
2257                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2258                     i586|pentium)             echo -xchip=pentium        ;;
2259                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2260                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2261                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2262                     pentium4*)          echo -xtarget=pentium4           ;;
2263                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2264                     *-sse3)             echo -xarch=sse3                 ;;
2265                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
2266                     amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2267                     athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2268                     k8|opteron|athlon64|athlon-fx)
2269                                               echo -xarch=sse2a          ;;
2270                     athlon*)                  echo -xarch=pentium_proa   ;;
2271                 esac
2272                 ;;
2273             -std=c99)             echo -xc99              ;;
2274             -fomit-frame-pointer) echo -xregs=frameptr    ;;
2275             -fPIC)                echo -KPIC -xcode=pic32 ;;
2276             -W*,*)                echo $flag              ;;
2277             -f*-*|-W*)                                    ;;
2278             *)                    echo $flag              ;;
2279         esac
2280     done
2281 }
2282
2283 tms470_flags(){
2284     for flag; do
2285         case $flag in
2286             -march=*|-mcpu=*)
2287                 case "${flag#*=}" in
2288                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
2289                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
2290                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
2291                     armv6*|arm11*)          echo -mv=6   ;;
2292                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2293                                             echo -mv=5e  ;;
2294                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2295                 esac
2296                 ;;
2297             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2298             -mfpu=vfp)      echo --float_support=vfpv2        ;;
2299             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2300             -msoft-float)   echo --float_support=vfplib       ;;
2301             -O[0-3]|-mf=*)  echo $flag                        ;;
2302             -g)             echo -g -mn                       ;;
2303             -pds=*)         echo $flag                        ;;
2304             -D*|-I*)        echo $flag                        ;;
2305             --gcc|--abi=*)  echo $flag                        ;;
2306             -me)            echo $flag                        ;;
2307         esac
2308     done
2309 }
2310
2311 if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
2312     cc_type=llvm_gcc
2313     gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
2314     cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
2315     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2316     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2317     cflags_speed='-O3'
2318     cflags_size='-Os'
2319 elif $cc -v 2>&1 | grep -qi ^gcc; then
2320     cc_type=gcc
2321     gcc_version=$($cc --version | head -n1)
2322     gcc_basever=$($cc -dumpversion)
2323     gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
2324     gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
2325     cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
2326     if ! $cc -dumpversion | grep -q '^2\.'; then
2327         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2328         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2329     fi
2330     cflags_speed='-O3'
2331     cflags_size='-Os'
2332 elif $cc --version 2>/dev/null | grep -q Intel; then
2333     cc_type=icc
2334     cc_ident=$($cc --version | head -n1)
2335     CC_DEPFLAGS='-MMD'
2336     AS_DEPFLAGS='-MMD'
2337     cflags_speed='-O3'
2338     cflags_size='-Os'
2339     cflags_noopt='-O1'
2340 elif $cc -v 2>&1 | grep -q xlc; then
2341     cc_type=xlc
2342     cc_ident=$($cc -qversion 2>/dev/null | head -n1)
2343     cflags_speed='-O5'
2344     cflags_size='-O5 -qcompact'
2345 elif $cc -V 2>/dev/null | grep -q Compaq; then
2346     cc_type=ccc
2347     cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
2348     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
2349     debuglevel=3
2350     add_ldflags -Wl,-z,now # calls to libots crash without this
2351     cflags_speed='-fast'
2352     cflags_size='-O1'
2353 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
2354     test -d "$sysroot" || die "No valid sysroot specified."
2355     cc_type=armcc
2356     cc_ident=$($cc --vsn | head -n1)
2357     armcc_conf="$PWD/armcc.conf"
2358     $cc --arm_linux_configure                 \
2359         --arm_linux_config_file="$armcc_conf" \
2360         --configure_sysroot="$sysroot"        \
2361         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
2362         die "Error creating armcc configuration file."
2363     $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
2364     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
2365     as_default="${cross_prefix}gcc"
2366     CC_DEPFLAGS='-MMD'
2367     AS_DEPFLAGS='-MMD'
2368     cflags_speed='-O3'
2369     cflags_size='-Os'
2370     asflags_filter="filter_out -W${armcc_opt}*"
2371 elif $cc -version 2>/dev/null | grep -q TMS470; then
2372     cc_type=tms470
2373     cc_ident=$($cc -version | head -n1 | tr -s ' ')
2374     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
2375     CC_O='-fr=$(@D)'
2376     as_default="${cross_prefix}gcc"
2377     ld_default="${cross_prefix}gcc"
2378     TMPO=$(basename $TMPC .c).o
2379     append TMPFILES $TMPO
2380     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
2381     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
2382     AS_DEPFLAGS='-MMD'
2383     cflags_speed='-O3 -mf=5'
2384     cflags_size='-O3 -mf=2'
2385     cflags_filter=tms470_flags
2386 elif $cc -v 2>&1 | grep -q clang; then
2387     cc_type=clang
2388     cc_ident=$($cc --version | head -n1)
2389     CC_DEPFLAGS='-MMD'
2390     AS_DEPFLAGS='-MMD'
2391     cflags_speed='-O3'
2392     cflags_size='-Os'
2393 elif $cc -V 2>&1 | grep -q Sun; then
2394     cc_type=suncc
2395     cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2396     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2397     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2398     add_ldflags -xc99
2399     cflags_speed='-O5'
2400     cflags_size='-O5 -xspace'
2401     cflags_filter=suncc_flags
2402 elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2403     cc_type=pathscale
2404     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2405     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2406     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2407     cflags_speed='-O2'
2408     cflags_size='-Os'
2409     cflags_filter='filter_out -Wdisabled-optimization'
2410 elif $cc -v 2>&1 | grep -q Open64; then
2411     cc_type=open64
2412     cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2413     CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2414     AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2415     cflags_speed='-O2'
2416     cflags_size='-Os'
2417     cflags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
2418 elif $cc -V 2>&1 | grep -q Portland; then
2419     cc_type=pgi
2420     cc_ident="PGI $($cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
2421     opt_common='-alias=ansi -Mlre -Mpre'
2422     cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
2423     cflags_size="-O2 -Munroll=c:1 $opt_common"
2424     cflags_noopt="-O1"
2425     cflags_filter=pgi_flags
2426 fi
2427
2428 test -n "$cc_type" && enable $cc_type ||
2429     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2430
2431 : ${as_default:=$cc}
2432 : ${dep_cc_default:=$cc}
2433 : ${ld_default:=$cc}
2434 set_default ar as dep_cc ld
2435
2436 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2437 test -n "$CXX_DEPFLAGS" || CXXDEP=$DEPEND_CMD
2438 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2439
2440 add_cflags $extra_cflags
2441 add_cxxflags $extra_cxxflags
2442 add_asflags $extra_cflags
2443
2444 if test -n "$sysroot"; then
2445     case "$cc_type" in
2446         gcc|llvm_gcc|clang)
2447             add_cppflags --sysroot="$sysroot"
2448             add_ldflags --sysroot="$sysroot"
2449         ;;
2450         tms470)
2451             add_cppflags -I"$sysinclude"
2452             add_ldflags  --sysroot="$sysroot"
2453         ;;
2454     esac
2455 fi
2456
2457 if test "$cpu" = host; then
2458     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2459
2460     case "$cc_type" in
2461         gcc|llvm_gcc)
2462             check_native(){
2463                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2464                 sed -n "/cc1.*$1=/{
2465                             s/.*$1=\\([^ ]*\\).*/\\1/
2466                             p
2467                             q
2468                         }" $TMPE
2469             }
2470             cpu=$(check_native -march || check_native -mcpu)
2471         ;;
2472     esac
2473
2474     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2475 fi
2476
2477 # Deal with common $arch aliases
2478 case "$arch" in
2479     arm*|iPad*)
2480         arch="arm"
2481     ;;
2482     mips|mipsel|IP*)
2483         arch="mips"
2484     ;;
2485     mips64*)
2486         arch="mips"
2487         subarch="mips64"
2488     ;;
2489     parisc|hppa)
2490         arch="parisc"
2491     ;;
2492     parisc64|hppa64)
2493         arch="parisc"
2494         subarch="parisc64"
2495     ;;
2496     "Power Macintosh"|ppc|powerpc|ppc64|powerpc64)
2497         arch="ppc"
2498     ;;
2499     s390|s390x)
2500         arch="s390"
2501     ;;
2502     sh4|sh)
2503         arch="sh4"
2504     ;;
2505     sun4u|sparc64)
2506         arch="sparc"
2507         subarch="sparc64"
2508     ;;
2509     i[3-6]86|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
2510         arch="x86"
2511     ;;
2512 esac
2513
2514 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2515 enable $arch
2516
2517 # Add processor-specific flags
2518 if test "$cpu" = generic; then
2519     : do nothing
2520 elif enabled ppc; then
2521
2522     case $(tolower $cpu) in
2523         601|ppc601|powerpc601)
2524             cpuflags="-mcpu=601"
2525             disable altivec
2526         ;;
2527         603*|ppc603*|powerpc603*)
2528             cpuflags="-mcpu=603"
2529             disable altivec
2530         ;;
2531         604*|ppc604*|powerpc604*)
2532             cpuflags="-mcpu=604"
2533             disable altivec
2534         ;;
2535         g3|75*|ppc75*|powerpc75*)
2536             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2537             disable altivec
2538         ;;
2539         g4|745*|ppc745*|powerpc745*)
2540             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2541         ;;
2542         74*|ppc74*|powerpc74*)
2543             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2544         ;;
2545         g5|970|ppc970|powerpc970)
2546             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2547         ;;
2548         power[3-7]*)
2549             cpuflags="-mcpu=$cpu -mpowerpc-gfxopt -mpowerpc64"
2550         ;;
2551         cell)
2552             cpuflags="-mcpu=cell"
2553             enable ldbrx
2554         ;;
2555         e500v2)
2556             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2557             disable altivec
2558         ;;
2559         e500)
2560             cpuflags="-mcpu=8540 -mhard-float"
2561             disable altivec
2562         ;;
2563     esac
2564
2565 elif enabled x86; then
2566
2567     case $cpu in
2568         i[345]86|pentium)
2569             cpuflags="-march=$cpu"
2570             disable mmx
2571         ;;
2572         # targets that do NOT support conditional mov (cmov)
2573         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2574             cpuflags="-march=$cpu"
2575             disable cmov
2576         ;;
2577         # targets that do support conditional mov (cmov)
2578         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|amdfam10|barcelona|atom)
2579             cpuflags="-march=$cpu"
2580             enable cmov
2581             enable fast_cmov
2582         ;;
2583         # targets that do support conditional mov but on which it's slow
2584         pentium4|pentium4m|prescott|nocona)
2585             cpuflags="-march=$cpu"
2586             enable cmov
2587             disable fast_cmov
2588         ;;
2589     esac
2590
2591 elif enabled sparc; then
2592
2593     case $cpu in
2594         niagara)
2595             cpuflags="-mcpu=$cpu"
2596             disable vis
2597         ;;
2598         sparc64)
2599             cpuflags="-mcpu=v9"
2600         ;;
2601     esac
2602
2603 elif enabled arm; then
2604
2605     case $cpu in
2606         armv*)
2607             cpuflags="-march=$cpu"
2608             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2609         ;;
2610         *)
2611             cpuflags="-mcpu=$cpu"
2612             case $cpu in
2613                 cortex-a*)                               subarch=armv7a  ;;
2614                 cortex-r*)                               subarch=armv7r  ;;
2615                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
2616                 arm11*)                                  subarch=armv6   ;;
2617                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2618                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2619             esac
2620         ;;
2621     esac
2622
2623 elif enabled alpha; then
2624
2625     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2626
2627 elif enabled bfin; then
2628
2629     cpuflags="-mcpu=$cpu"
2630
2631 elif enabled mips; then
2632
2633     cpuflags="-march=$cpu"
2634
2635     case $cpu in
2636         24kc)
2637             disable mipsfpu
2638             disable mipsdspr1
2639             disable mipsdspr2
2640         ;;
2641         24kf*)
2642             disable mipsdspr1
2643             disable mipsdspr2
2644         ;;
2645         24kec|34kc|1004kc)
2646             disable mipsfpu
2647             disable mipsdspr2
2648         ;;
2649         24kef*|34kf*|1004kf*)
2650             disable mipsdspr2
2651         ;;
2652         74kc)
2653             disable mipsfpu
2654         ;;
2655     esac
2656
2657 elif enabled avr32; then
2658
2659     case $cpu in
2660         ap7[02]0[0-2])
2661             subarch="avr32_ap"
2662             cpuflags="-mpart=$cpu"
2663         ;;
2664         ap)
2665             subarch="avr32_ap"
2666             cpuflags="-march=$cpu"
2667         ;;
2668         uc3[ab]*)
2669             subarch="avr32_uc"
2670             cpuflags="-mcpu=$cpu"
2671         ;;
2672         uc)
2673             subarch="avr32_uc"
2674             cpuflags="-march=$cpu"
2675         ;;
2676     esac
2677
2678 fi
2679
2680 add_cflags $cpuflags
2681 add_asflags $cpuflags
2682
2683 # compiler sanity check
2684 check_exec <<EOF
2685 int main(void){ return 0; }
2686 EOF
2687 if test "$?" != 0; then
2688     echo "$cc is unable to create an executable file."
2689     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2690         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2691         echo "Only do this if you know what cross compiling means."
2692     fi
2693     die "C compiler test failed."
2694 fi
2695
2696 add_cppflags -D_ISOC99_SOURCE
2697 add_cxxflags -D__STDC_CONSTANT_MACROS
2698 check_cflags -std=c99
2699 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2700 #include <stdlib.h>
2701 EOF
2702 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2703 #include <stdlib.h>
2704 EOF
2705
2706 check_host_cflags -std=c99
2707 check_host_cflags -Wall
2708
2709 case "$arch" in
2710     alpha|ia64|mips|parisc|sparc)
2711         spic=$shared
2712     ;;
2713     x86)
2714         subarch="x86_32"
2715         check_code cc "" "int test[(int)sizeof(char*) - 7]" && subarch="x86_64"
2716         if test "$subarch" = "x86_64"; then
2717             spic=$shared
2718         fi
2719     ;;
2720     ppc)
2721         check_cc <<EOF && subarch="ppc64"
2722         int test[(int)sizeof(char*) - 7];
2723 EOF
2724     ;;
2725 esac
2726
2727 enable $subarch
2728 enabled spic && enable pic
2729
2730 # OS specific
2731 case $target_os in
2732     haiku)
2733         prefix_default="/boot/common"
2734         network_extralibs="-lnetwork"
2735         host_libs=
2736         ;;
2737     sunos)
2738         FFSERVERLDFLAGS=""
2739         SHFLAGS='-shared -Wl,-h,$$(@F)'
2740         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2741         network_extralibs="-lsocket -lnsl"
2742         add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
2743         # When using suncc to build, the Solaris linker will mark
2744         # an executable with each instruction set encountered by
2745         # the Solaris assembler.  As our libraries contain their own
2746         # guards for processor-specific code, instead suppress
2747         # generation of the HWCAPS ELF section on Solaris x86 only.
2748         enabled_all suncc x86 && echo "hwcap_1 = OVERRIDE;" > mapfile && add_ldflags -Wl,-M,mapfile
2749         nm_opts='-P -g'
2750         ;;
2751     netbsd)
2752         disable symver
2753         oss_indev_extralibs="-lossaudio"
2754         oss_outdev_extralibs="-lossaudio"
2755         ;;
2756     openbsd|bitrig)
2757         # On OpenBSD 4.5. the compiler does not use PIC unless
2758         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2759         # however the generated executable will not do anything
2760         # (simply quits with exit-code 1, no crash, no output).
2761         # Thus explicitly enable PIC here.
2762         enable pic
2763         disable symver
2764         SHFLAGS='-shared'
2765         SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBVERSION)'
2766         oss_indev_extralibs="-lossaudio"
2767         oss_outdev_extralibs="-lossaudio"
2768         ;;
2769     dragonfly)
2770         disable symver
2771         ;;
2772     freebsd)
2773         ;;
2774     bsd/os)
2775         add_extralibs -lpoll -lgnugetopt
2776         strip="strip -d"
2777         ;;
2778     darwin)
2779         gas="gas-preprocessor.pl $cc"
2780         enabled ppc && add_asflags -force_cpusubtype_ALL
2781         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2782         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2783         strip="${strip} -x"
2784         add_ldflags -Wl,-dynamic,-search_paths_first
2785         SLIBSUF=".dylib"
2786         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2787         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2788         FFSERVERLDFLAGS=-Wl,-bind_at_load
2789         objformat="macho"
2790         enabled x86_64 && objformat="macho64"
2791         enabled_any pic shared ||
2792             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2793         ;;
2794     mingw32*)
2795         if test $target_os = "mingw32ce"; then
2796             disable network
2797         else
2798             target_os=mingw32
2799         fi
2800         LIBTARGET=i386
2801         if enabled x86_64; then
2802             LIBTARGET=x64
2803         elif enabled arm; then
2804             LIBTARGET=arm-wince
2805         fi
2806         shlibdir_default="$bindir_default"
2807         SLIBPREF=""
2808         SLIBSUF=".dll"
2809         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2810         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2811         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
2812         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
2813         SLIB_INSTALL_LINKS=
2814         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
2815         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
2816         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'
2817         objformat="win32"
2818         enable dos_paths
2819         check_cflags -fno-common
2820         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2821                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2822                 die "ERROR: MinGW runtime version must be >= 3.15."
2823         add_cppflags -U__STRICT_ANSI__
2824         ;;
2825     cygwin*)
2826         target_os=cygwin
2827         shlibdir_default="$bindir_default"
2828         SLIBPREF="cyg"
2829         SLIBSUF=".dll"
2830         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2831         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2832         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2833         objformat="win32"
2834         enable dos_paths
2835         check_cflags -fno-common
2836         add_cppflags -U__STRICT_ANSI__
2837         ;;
2838     *-dos|freedos|opendos)
2839         network_extralibs="-lsocket"
2840         objformat="coff"
2841         enable dos_paths
2842         add_cppflags -U__STRICT_ANSI__
2843         ;;
2844     linux)
2845         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2846         enable dv1394
2847         ;;
2848     irix*)
2849         target_os=irix
2850         ranlib="echo ignoring ranlib"
2851         ;;
2852     os/2*)
2853         strip="lxlite -CS"
2854         ln_s="cp -f"
2855         objformat="aout"
2856         add_cppflags -D_GNU_SOURCE
2857         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2858         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2859         FFSERVERLDFLAGS=""
2860         LIBSUF="_s.a"
2861         SLIBPREF=""
2862         SLIBSUF=".dll"
2863         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2864         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2865         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2866           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2867           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2868           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2869           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2870           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2871         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2872           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2873         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
2874         enable dos_paths
2875         enable_weak os2threads
2876         ;;
2877     gnu/kfreebsd)
2878         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 -D_BSD_SOURCE
2879         ;;
2880     gnu)
2881         add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2882         ;;
2883     qnx)
2884         add_cppflags -D_QNX_SOURCE
2885         network_extralibs="-lsocket"
2886         ;;
2887     symbian)
2888         SLIBSUF=".dll"
2889         enable dos_paths
2890         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
2891         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
2892         add_ldflags -Wl,--target1-abs,--no-undefined \
2893                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
2894                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
2895         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
2896                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
2897                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
2898         ;;
2899     none)
2900         ;;
2901     *)
2902         die "Unknown OS '$target_os'."
2903         ;;
2904 esac
2905
2906 esc(){
2907     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
2908 }
2909
2910 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" >config.fate
2911
2912 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2913
2914 set_default $PATHS_LIST
2915
2916 # we need to build at least one lib type
2917 if ! enabled_any static shared; then
2918     cat <<EOF
2919 At least one library type must be built.
2920 Specify --enable-static to build the static libraries or --enable-shared to
2921 build the shared libraries as well. To only build the shared libraries specify
2922 --disable-static in addition to --enable-shared.
2923 EOF
2924     exit 1;
2925 fi
2926
2927 die_license_disabled() {
2928     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2929 }
2930
2931 die_license_disabled_gpl() {
2932     enabled $1 || { enabled $2 && die "$2 is incompatible with the gpl and --enable-$1 is not specified."; }
2933 }
2934
2935 die_license_disabled gpl libcdio
2936 die_license_disabled gpl libutvideo
2937 die_license_disabled gpl libx264
2938 die_license_disabled gpl libxavs
2939 die_license_disabled gpl libxvid
2940 die_license_disabled gpl x11grab
2941
2942 die_license_disabled nonfree libaacplus
2943 die_license_disabled nonfree libfaac
2944 enabled gpl && die_license_disabled_gpl nonfree libfdk_aac
2945 enabled gpl && die_license_disabled_gpl nonfree openssl
2946
2947 die_license_disabled version3 libopencore_amrnb
2948 die_license_disabled version3 libopencore_amrwb
2949 die_license_disabled version3 libvo_aacenc
2950 die_license_disabled version3 libvo_amrwbenc
2951
2952 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2953
2954 disabled optimizations || check_cflags -fomit-frame-pointer
2955
2956 enable_pic() {
2957     enable pic
2958     add_cppflags -DPIC
2959     add_cflags   -fPIC
2960     add_asflags  -fPIC
2961 }
2962
2963 enabled pic && enable_pic
2964
2965 check_cc <<EOF || die "Symbol mangling check failed."
2966 int ff_extern;
2967 EOF
2968 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2969 extern_prefix=${sym%%ff_extern*}
2970
2971 check_cc <<EOF && enable inline_asm
2972 void foo(void) { __asm__ volatile ("" ::); }
2973 EOF
2974
2975 _restrict=
2976 for restrict_keyword in restrict __restrict__ __restrict; do
2977     check_cc <<EOF && _restrict=$restrict_keyword && break
2978 void foo(char * $restrict_keyword p);
2979 EOF
2980 done
2981
2982 check_cc <<EOF && enable attribute_packed
2983 struct { int x; } __attribute__((packed)) x;
2984 EOF
2985
2986 check_cc <<EOF && enable attribute_may_alias
2987 union { int x; } __attribute__((may_alias)) x;
2988 EOF
2989
2990 check_cc <<EOF || die "endian test failed"
2991 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2992 EOF
2993 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2994
2995 if enabled alpha; then
2996
2997     check_cflags -mieee
2998
2999 elif enabled arm; then
3000
3001     enabled thumb && check_cflags -mthumb || check_cflags -marm
3002     nogas=die
3003
3004     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
3005         enable vfp_args
3006     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
3007         case "${cross_prefix:-$cc}" in
3008             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
3009             *) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
3010 __asm__ (".eabi_attribute 28, 1");
3011 int main(void) { return 0; }
3012 EOF
3013         esac
3014         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
3015     fi
3016
3017     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
3018     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
3019     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
3020     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
3021     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
3022     enabled vfpv3   && check_asm vfpv3   '"vmov.f32 s0, #1.0"'
3023
3024     check_asm asm_mod_y '"vmul.i32 d0, d0, %y0" :: "x"(0)'
3025
3026     enabled_all armv6t2 shared !pic && enable_pic
3027
3028 elif enabled mips; then
3029
3030     check_asm loongson '"dmult.g $1, $2, $3"'
3031     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
3032     enabled mips32r2  && add_cflags "-mips32r2" &&
3033      check_asm mips32r2  '"rotr $t0, $t1, 1"'
3034     enabled mipsdspr1 && add_cflags "-mdsp" && add_asflags "-mdsp" &&
3035      check_asm mipsdspr1 '"addu.qb $t0, $t1, $t2"'
3036     enabled mipsdspr2 && add_cflags "-mdspr2" && add_asflags "-mdspr2" &&
3037      check_asm mipsdspr2 '"absq_s.qb $t0, $t1"'
3038     enabled mipsfpu   && add_cflags "-mhard-float" &&
3039      check_asm mipsfpu   '"madd.d $f0, $f2, $f4, $f6"'
3040
3041
3042 elif enabled ppc; then
3043
3044     enable local_aligned_8 local_aligned_16
3045
3046     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
3047     check_asm ibm_asm   '"add 0, 0, 0"'
3048     check_asm ppc4xx    '"maclhw r10, r11, r12"'
3049     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
3050
3051     # AltiVec flags: The FSF version of GCC differs from the Apple version
3052     if enabled altivec; then
3053         nogas=warn
3054         check_cflags -maltivec -mabi=altivec &&
3055         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
3056         check_cflags -faltivec
3057
3058         # check if our compiler supports Motorola AltiVec C API
3059         check_cc <<EOF || disable altivec
3060 $inc_altivec_h
3061 int main(void) {
3062     vector signed int v1, v2, v3;
3063     v1 = vec_add(v2,v3);
3064     return 0;
3065 }
3066 EOF
3067
3068         # check if our compiler supports braces for vector declarations
3069         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
3070 $inc_altivec_h
3071 int main (void) { (vector int) {1}; return 0; }
3072 EOF
3073     fi
3074
3075 elif enabled sparc; then
3076
3077     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
3078         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
3079
3080 elif enabled x86; then
3081
3082     check_code ld immintrin.h "__xgetbv(0)" "cc" && enable xgetbv
3083     check_code ld intrin.h "int info[4]; __cpuid(info, 0)" "cc" && enable cpuid
3084     check_code ld intrin.h "__rdtsc()" "cc" && enable rdtsc
3085     check_code ld intrin.h "unsigned int x = __readeflags()" "cc" && enable rweflags
3086
3087     check_code ld mmintrin.h "_mm_empty()" "cc" && enable mm_empty
3088
3089     enable local_aligned_8 local_aligned_16
3090
3091     # check whether EBP is available on x86
3092     # As 'i' is stored on the stack, this program will crash
3093     # if the base pointer is used to access it because the
3094     # base pointer is cleared in the inline assembly code.
3095     check_exec_crash <<EOF && enable ebp_available
3096     volatile int i=0;
3097     __asm__ volatile (
3098         "xorl %%ebp, %%ebp"
3099     ::: "%ebp");
3100     return i;
3101 EOF
3102
3103     # check whether EBX is available on x86
3104     check_asm ebx_available '""::"b"(0)' &&
3105         check_asm ebx_available '"":::"%ebx"'
3106
3107     # check whether xmm clobbers are supported
3108     check_asm xmm_clobbers '"":::"%xmm0"'
3109
3110     # check whether binutils is new enough to compile SSSE3/MMX2
3111     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
3112     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
3113
3114     if ! disabled_any asm mmx yasm; then
3115         if check_cmd $yasmexe --version; then
3116             enabled x86_64 && yasm_extra="-m amd64"
3117             yasm_debug="-g dwarf2"
3118         elif check_cmd nasm -v; then
3119             yasmexe=nasm
3120             yasm_debug="-g -F dwarf"
3121             enabled x86_64 && test "$objformat" = elf && objformat=elf64
3122         fi
3123
3124         YASMFLAGS="-f $objformat $yasm_extra"
3125         enabled pic               && append YASMFLAGS "-DPIC"
3126         test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
3127         case "$objformat" in
3128             elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
3129         esac
3130
3131         check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
3132             die "yasm not found, use --disable-yasm for a crippled build"
3133         check_yasm "vextractf128 xmm0, ymm0, 0" || disable avx
3134     fi
3135
3136     case "$cpu" in
3137         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
3138             disable fast_clz
3139         ;;
3140     esac
3141
3142 fi
3143
3144 if enabled asm; then
3145     as=${gas:=$as}
3146     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
3147         $nogas "GNU assembler not found, install gas-preprocessor"
3148 fi
3149
3150 check_ldflags -Wl,--as-needed
3151
3152 if check_func dlopen; then
3153     ldl=
3154 elif check_func dlopen -ldl; then
3155     ldl=-ldl
3156 fi
3157
3158 if enabled network; then
3159     check_type "sys/types.h sys/socket.h" socklen_t
3160     check_type netdb.h "struct addrinfo"
3161     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
3162     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
3163     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
3164     check_type netinet/in.h "struct sockaddr_in6"
3165     check_type poll.h "struct pollfd"
3166     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3167     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
3168     check_header netinet/sctp.h
3169     check_func getaddrinfo $network_extralibs
3170     # Prefer arpa/inet.h over winsock2
3171     if check_header arpa/inet.h ; then
3172         check_func closesocket
3173     elif check_header winsock2.h ; then
3174         check_func_headers winsock2.h closesocket -lws2 &&
3175             network_extralibs="-lws2" ||
3176         { check_func_headers winsock2.h closesocket -lws2_32 &&
3177             network_extralibs="-lws2_32"; }
3178         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
3179         check_type ws2tcpip.h socklen_t
3180         check_type ws2tcpip.h "struct addrinfo"
3181         check_type ws2tcpip.h "struct group_source_req"
3182         check_type ws2tcpip.h "struct ip_mreq_source"
3183         check_type ws2tcpip.h "struct ipv6_mreq"
3184         check_type winsock2.h "struct pollfd"
3185         check_type ws2tcpip.h "struct sockaddr_in6"
3186         check_type ws2tcpip.h "struct sockaddr_storage"
3187         check_struct winsock2.h "struct sockaddr" sa_len
3188     else
3189         disable network
3190     fi
3191 fi
3192
3193 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
3194 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
3195
3196 check_func  clock_gettime || { check_func clock_gettime -lrt && add_extralibs -lrt; }
3197 check_func  fcntl
3198 check_func  fork
3199 check_func  gethrtime
3200 check_func  getopt
3201 check_func  getrusage
3202 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
3203 check_func  gettimeofday
3204 check_func  inet_aton $network_extralibs
3205 check_func  isatty
3206 check_func  localtime_r
3207 check_func  ${malloc_prefix}memalign            && enable memalign
3208 check_func  mkstemp
3209 check_func  mmap
3210 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
3211 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
3212 check_func  setrlimit
3213 check_func  strerror_r
3214 check_func  strptime
3215 check_func  sched_getaffinity
3216 check_func  sysconf
3217 check_func  sysctl
3218 check_func  usleep
3219 check_func_headers conio.h kbhit
3220 check_func_headers windows.h PeekNamedPipe
3221 check_func_headers io.h setmode
3222 check_func_headers lzo/lzo1x.h lzo1x_999_compress
3223 check_lib2 "windows.h shellapi.h" CommandLineToArgvW -lshell32
3224 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
3225 check_func_headers windows.h GetProcessAffinityMask
3226 check_func_headers windows.h GetProcessTimes
3227 check_func_headers windows.h GetSystemTimeAsFileTime
3228 check_func_headers windows.h MapViewOfFile
3229 check_func_headers windows.h Sleep
3230 check_func_headers windows.h VirtualAlloc
3231 check_func_headers glob.h glob
3232
3233 check_header dlfcn.h
3234 check_header dxva.h
3235 check_header dxva2api.h -D_WIN32_WINNT=0x0600
3236 check_header libcrystalhd/libcrystalhd_if.h
3237 check_header malloc.h
3238 check_header poll.h
3239 check_header sys/mman.h
3240 check_header sys/param.h
3241 check_header sys/resource.h
3242 check_header sys/select.h
3243 check_header sys/time.h
3244 check_header termios.h
3245 check_header unistd.h
3246 check_header vdpau/vdpau.h
3247 check_header vdpau/vdpau_x11.h
3248 check_header windows.h
3249 check_header X11/extensions/XvMClib.h
3250 check_header asm/types.h
3251
3252 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
3253 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
3254
3255 # check for VDA header
3256 if ! disabled vda; then
3257     if check_header VideoDecodeAcceleration/VDADecoder.h; then
3258         enable vda
3259         add_extralibs -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
3260     fi
3261 fi
3262
3263 if ! disabled w32threads && ! enabled pthreads; then
3264     check_func _beginthreadex && enable w32threads
3265 fi
3266
3267 # check for some common methods of building with pthread support
3268 # do this before the optional library checks as some of them require pthreads
3269 if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
3270     enable pthreads
3271     if check_func pthread_create; then
3272         :
3273     elif check_func pthread_create -pthread; then
3274         add_cflags -pthread
3275         add_extralibs -pthread
3276     elif check_func pthread_create -pthreads; then
3277         add_cflags -pthreads
3278         add_extralibs -pthreads
3279     elif check_func pthread_create -lpthreadGC2; then
3280         add_extralibs -lpthreadGC2
3281     elif ! check_lib pthread.h pthread_create -lpthread; then
3282         disable pthreads
3283     fi
3284 fi
3285
3286 for thread in $THREADS_LIST; do
3287     if enabled $thread; then
3288         test -n "$thread_type" &&
3289             die "ERROR: Only one thread type must be selected." ||
3290             thread_type="$thread"
3291     fi
3292 done
3293
3294 if enabled pthreads; then
3295   check_func pthread_cancel
3296 fi
3297
3298 check_lib math.h sin -lm && LIBM="-lm"
3299 disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
3300 enabled vaapi && require vaapi va/va.h vaInitialize -lva
3301
3302 check_mathfunc cbrtf
3303 check_mathfunc exp2
3304 check_mathfunc exp2f
3305 check_mathfunc isinf
3306 check_mathfunc isnan
3307 check_mathfunc llrint
3308 check_mathfunc llrintf
3309 check_mathfunc log2
3310 check_mathfunc log2f
3311 check_mathfunc lrint
3312 check_mathfunc lrintf
3313 check_mathfunc rint
3314 check_mathfunc round
3315 check_mathfunc roundf
3316 check_mathfunc trunc
3317 check_mathfunc truncf
3318
3319 # these are off by default, so fail if requested and not available
3320 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
3321 enabled fontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
3322 enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
3323 enabled gnutls     && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
3324 enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
3325 enabled libaacplus && require  "libaacplus >= 2.0.0" aacplus.h aacplusEncOpen -laacplus
3326 enabled libass     && require_pkg_config libass ass/ass.h ass_library_init
3327 enabled libbluray  && require libbluray libbluray/bluray.h bd_open -lbluray
3328 enabled libcelt    && require libcelt celt/celt.h celt_decode -lcelt0 &&
3329                       { check_lib celt/celt.h celt_decoder_create_custom -lcelt0 ||
3330                         die "ERROR: libcelt version must be >= 0.11.0."; }
3331 enabled libcaca    && require_pkg_config caca caca.h caca_create_canvas
3332 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
3333 enabled libfdk_aac && require  libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac
3334 enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
3335 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
3336 enabled libilbc    && require  libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
3337 enabled libmodplug && require  libmodplug libmodplug/modplug.h ModPlug_Load -lmodplug
3338 enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
3339 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
3340 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
3341 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3342 enabled libopencv  && require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader
3343 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
3344 enabled libopus    && require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
3345 enabled libpulse && require_pkg_config libpulse-simple pulse/simple.h pa_simple_new
3346 enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
3347 enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
3348 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
3349 enabled libstagefright_h264  && require_cpp libstagefright_h264 "binder/ProcessState.h media/stagefright/MetaData.h
3350     media/stagefright/MediaBufferGroup.h media/stagefright/MediaDebug.h media/stagefright/MediaDefs.h
3351     media/stagefright/OMXClient.h media/stagefright/OMXCodec.h" android::OMXClient -lstagefright -lmedia -lutils -lbinder -lgnustl_static
3352 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
3353 enabled libutvideo    && require_cpp utvideo "stdint.h stdlib.h utvideo/utvideo.h utvideo/Codec.h" 'CCodec*' -lutvideo -lstdc++
3354 enabled libv4l2    && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
3355 enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
3356 enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
3357 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
3358 enabled libvpx     && {
3359     enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
3360                                 die "ERROR: libvpx decoder version must be >=0.9.1"; }
3361     enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
3362                                 die "ERROR: libvpx encoder version must be >=0.9.7"; } }
3363 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
3364                       { check_cpp_condition x264.h "X264_BUILD >= 118" ||
3365                         die "ERROR: libx264 version must be >= 0.118."; }
3366 enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
3367 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
3368 enabled openal     && { { for al_libs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
3369                         check_lib 'AL/al.h' alGetError "${al_libs}" && break; done } ||
3370                         die "ERROR: openal not found"; } &&
3371                       { check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
3372                         die "ERROR: openal version must be 1.1 or compatible"; }
3373 enabled openssl    && { check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto ||
3374                         check_lib openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
3375                         check_lib openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
3376                         die "ERROR: openssl not found"; }
3377
3378 # libdc1394 check
3379 if enabled libdc1394; then
3380     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
3381         enable libdc1394_2; } ||
3382     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
3383         enable libdc1394_1; } ||
3384     die "ERROR: No version of libdc1394 found "
3385 fi
3386
3387 SDL_CONFIG="${cross_prefix}sdl-config"
3388 if check_pkg_config sdl SDL_events.h SDL_PollEvent; then
3389     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3390     enable sdl &&
3391     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3392 else
3393   if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
3394     sdl_cflags=$("${SDL_CONFIG}" --cflags)
3395     sdl_libs=$("${SDL_CONFIG}" --libs)
3396     check_func_headers SDL_version.h SDL_Linked_Version $sdl_cflags $sdl_libs &&
3397     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
3398     enable sdl &&
3399     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
3400   fi
3401 fi
3402 enabled sdl && add_cflags $sdl_cflags && add_extralibs $sdl_libs
3403
3404 texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
3405 makeinfo --version > /dev/null 2>&1 && enable makeinfo  || disable makeinfo
3406 pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
3407
3408 check_header linux/fb.h
3409 check_header linux/videodev.h
3410 check_header linux/videodev2.h
3411 check_struct linux/videodev2.h "struct v4l2_frmivalenum" discrete
3412
3413 check_header sys/videoio.h
3414
3415 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
3416 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
3417 # w32api 3.12 had it defined wrong
3418 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
3419
3420 check_type "dshow.h" IBaseFilter
3421
3422 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
3423 { check_header dev/bktr/ioctl_meteor.h &&
3424   check_header dev/bktr/ioctl_bt848.h; } ||
3425 { check_header machine/ioctl_meteor.h &&
3426   check_header machine/ioctl_bt848.h; } ||
3427 { check_header dev/video/meteor/ioctl_meteor.h &&
3428   check_header dev/video/bktr/ioctl_bt848.h; } ||
3429 check_header dev/ic/bt8xx.h
3430
3431 check_header sndio.h
3432 if check_struct sys/soundcard.h audio_buf_info bytes; then
3433     enable_safe sys/soundcard.h
3434 else
3435     check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
3436     #include <sys/soundcard.h>
3437     audio_buf_info abc;
3438 EOF
3439 fi
3440 check_header soundcard.h
3441
3442 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
3443
3444 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack && check_func sem_timedwait &&
3445     check_func jack_port_get_latency_range -ljack
3446
3447 enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
3448
3449 enabled libcdio &&
3450     check_lib2 "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open "-lcdio_paranoia -lcdio_cdda -lcdio"
3451
3452 enabled x11grab                                           &&
3453 require X11 X11/Xlib.h XOpenDisplay -lX11                 &&
3454 require Xext X11/extensions/XShm.h XShmCreateImage -lXext &&
3455 require Xfixes X11/extensions/Xfixes.h XFixesGetCursorImage -lXfixes
3456
3457 if ! disabled vaapi; then
3458     check_lib va/va.h vaInitialize -lva && {
3459         check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
3460         warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
3461     } || disable vaapi
3462 fi
3463
3464 if ! disabled vdpau && enabled vdpau_vdpau_h; then
3465 check_cpp_condition \
3466     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
3467     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
3468       disable vdpau; }
3469 fi
3470
3471 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
3472 enabled coverage && add_cflags "-fprofile-arcs -ftest-coverage" && add_ldflags "-fprofile-arcs -ftest-coverage"
3473 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"
3474
3475 # add some useful compiler flags if supported
3476 check_cflags -Wdeclaration-after-statement
3477 check_cflags -Wall
3478 check_cflags -Wno-parentheses
3479 check_cflags -Wno-switch
3480 check_cflags -Wno-format-zero-length
3481 check_cflags -Wdisabled-optimization
3482 check_cflags -Wpointer-arith
3483 check_cflags -Wredundant-decls
3484 check_cflags -Wno-pointer-sign
3485 check_cflags -Wwrite-strings
3486 check_cflags -Wtype-limits
3487 check_cflags -Wundef
3488 check_cflags -Wmissing-prototypes
3489 check_cflags -Wno-pointer-to-int-cast
3490 check_cflags -Wstrict-prototypes
3491 enabled extra_warnings && check_cflags -Winline
3492
3493 # add some linker flags
3494 check_ldflags -Wl,--warn-common
3495 check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
3496 test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3497
3498 enabled xmm_clobber_test &&
3499     check_ldflags -Wl,--wrap,avcodec_open2              \
3500                   -Wl,--wrap,avcodec_decode_audio4      \
3501                   -Wl,--wrap,avcodec_decode_video2      \
3502                   -Wl,--wrap,avcodec_decode_subtitle2   \
3503                   -Wl,--wrap,avcodec_encode_audio2      \
3504                   -Wl,--wrap,avcodec_encode_video       \
3505                   -Wl,--wrap,avcodec_encode_subtitle    \
3506                   -Wl,--wrap,sws_scale ||
3507     disable xmm_clobber_test
3508
3509 echo "X{};" > $TMPV
3510 if test_ldflags -Wl,--version-script,$TMPV; then
3511     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3512     check_cc <<EOF && enable symver_asm_label
3513 void ff_foo(void) __asm__ ("av_foo@VERSION");
3514 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3515 EOF
3516     check_cc <<EOF && enable symver_gnu_asm
3517 __asm__(".symver ff_foo,av_foo@VERSION");
3518 void ff_foo(void) {}
3519 EOF
3520 fi
3521
3522 if [ -n "$optflags" ]; then
3523     add_cflags $optflags
3524 elif enabled small; then
3525     add_cflags $cflags_size
3526 elif enabled optimizations; then
3527     add_cflags $cflags_speed
3528 else
3529     add_cflags $cflags_noopt
3530 fi
3531 check_cflags -fno-math-errno
3532 check_cflags -fno-signed-zeros
3533 check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
3534 int x;
3535 EOF
3536
3537
3538 if enabled icc; then
3539     # Just warnings, no remarks
3540     check_cflags -w1
3541     # -wd: Disable following warnings
3542     # 144, 167, 556: -Wno-pointer-sign
3543     # 1292: attribute "foo" ignored
3544     # 1419: external declaration in primary source file
3545     # 10006: ignoring unknown option -fno-signed-zeros
3546     # 10148: ignoring unknown option -Wno-parentheses
3547     # 10156: ignoring option '-W'; no argument required
3548     check_cflags -wd144,167,556,1292,1419,10006,10148,10156
3549     # 11030: Warning unknown option --as-needed
3550     # 10156: ignoring option '-export'; no argument required
3551     check_ldflags -wd10156,11030
3552     # Allow to compile with optimizations
3553     check_ldflags -march=$cpu
3554     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3555     enable ebp_available
3556     if enabled x86_32; then
3557         icc_version=$($cc -dumpversion)
3558         test ${icc_version%%.*} -ge 11 &&
3559             check_cflags -falign-stack=maintain-16-byte ||
3560             disable aligned_stack
3561     fi
3562 elif enabled ccc; then
3563     # disable some annoying warnings
3564     add_cflags -msg_disable cvtu32to64
3565     add_cflags -msg_disable embedcomment
3566     add_cflags -msg_disable needconstext
3567     add_cflags -msg_disable nomainieee
3568     add_cflags -msg_disable ptrmismatch1
3569     add_cflags -msg_disable unreachcode
3570 elif enabled gcc; then
3571     check_cflags -fno-tree-vectorize
3572     check_cflags -Werror=implicit-function-declaration
3573     check_cflags -Werror=missing-prototypes
3574 elif enabled llvm_gcc; then
3575     check_cflags -mllvm -stack-alignment=16
3576 elif enabled clang; then
3577     check_cflags -mllvm -stack-alignment=16
3578     check_cflags -Qunused-arguments
3579 elif enabled armcc; then
3580     # 2523: use of inline assembler is deprecated
3581     add_cflags -W${armcc_opt},--diag_suppress=2523
3582     add_cflags -W${armcc_opt},--diag_suppress=1207
3583     add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3584     add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3585     add_cflags -W${armcc_opt},--diag_suppress=167  # pointer sign
3586     add_cflags -W${armcc_opt},--diag_suppress=513  # pointer sign
3587 elif enabled tms470; then
3588     add_cflags -pds=824 -pds=837
3589 elif enabled pathscale; then
3590     add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3591 fi
3592
3593 enabled_any $THREADS_LIST      && enable threads
3594
3595 check_deps $CONFIG_LIST       \
3596            $CONFIG_EXTRA      \
3597            $HAVE_LIST         \
3598            $ALL_COMPONENTS    \
3599            $ALL_TESTS         \
3600
3601 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3602
3603 if test $target_os = "haiku"; then
3604     disable memalign
3605     disable posix_memalign
3606 fi
3607
3608 ! enabled_any memalign posix_memalign aligned_malloc &&
3609     enabled_any $need_memalign && enable memalign_hack
3610
3611 # add_dep lib dep
3612 # -> enable ${lib}_deps_${dep}
3613 # -> add $dep to ${lib}_deps only once
3614 add_dep() {
3615     lib=$1
3616     dep=$2
3617     enabled "${lib}_deps_${dep}" && return 0
3618     enable  "${lib}_deps_${dep}"
3619     prepend "${lib}_deps" $dep
3620 }
3621
3622 # merge deps lib components
3623 # merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
3624 merge_deps() {
3625     lib=$1
3626     shift
3627     for comp in $*; do
3628         enabled $comp || continue
3629         eval "dep=\"\$${comp}_deps\""
3630         for d in $dep; do
3631             add_dep $lib $d
3632         done
3633     done
3634 }
3635
3636 merge_deps libavfilter $FILTER_LIST
3637
3638 echo "install prefix            $prefix"
3639 echo "source path               $source_path"
3640 echo "C compiler                $cc"
3641 echo "ARCH                      $arch ($cpu)"
3642 if test "$build_suffix" != ""; then
3643     echo "build suffix              $build_suffix"
3644 fi
3645 if test "$progs_suffix" != ""; then
3646     echo "progs suffix              $progs_suffix"
3647 fi
3648 if test "$extra_version" != ""; then
3649     echo "version string suffix     $extra_version"
3650 fi
3651 echo "big-endian                ${bigendian-no}"
3652 echo "runtime cpu detection     ${runtime_cpudetect-no}"
3653 if enabled x86; then
3654     echo "${yasmexe}                      ${yasm-no}"
3655     echo "MMX enabled               ${mmx-no}"
3656     echo "MMX2 enabled              ${mmx2-no}"
3657     echo "3DNow! enabled            ${amd3dnow-no}"
3658     echo "3DNow! extended enabled   ${amd3dnowext-no}"
3659     echo "SSE enabled               ${sse-no}"
3660     echo "SSSE3 enabled             ${ssse3-no}"
3661     echo "AVX enabled               ${avx-no}"
3662     echo "CMOV enabled              ${cmov-no}"
3663     echo "CMOV is fast              ${fast_cmov-no}"
3664     echo "EBX available             ${ebx_available-no}"
3665     echo "EBP available             ${ebp_available-no}"
3666 fi
3667 if enabled arm; then
3668     echo "ARMv5TE enabled           ${armv5te-no}"
3669     echo "ARMv6 enabled             ${armv6-no}"
3670     echo "ARMv6T2 enabled           ${armv6t2-no}"
3671     echo "ARM VFP enabled           ${armvfp-no}"
3672     echo "NEON enabled              ${neon-no}"
3673 fi
3674 if enabled mips; then
3675     echo "MMI enabled               ${mmi-no}"
3676     echo "MIPS FPU enabled          ${mipsfpu-no}"
3677     echo "MIPS32R2 enabled          ${mips32r2-no}"
3678     echo "MIPS DSP R1 enabled       ${mipsdspr1-no}"
3679     echo "MIPS DSP R2 enabled       ${mipsdspr2-no}"
3680 fi
3681 if enabled ppc; then
3682     echo "AltiVec enabled           ${altivec-no}"
3683     echo "PPC 4xx optimizations     ${ppc4xx-no}"
3684     echo "dcbzl available           ${dcbzl-no}"
3685 fi
3686 if enabled sparc; then
3687     echo "VIS enabled               ${vis-no}"
3688 fi
3689 echo "debug symbols             ${debug-no}"
3690 echo "strip symbols             ${stripping-no}"
3691 echo "optimize for size         ${small-no}"
3692 echo "optimizations             ${optimizations-no}"
3693 echo "static                    ${static-no}"
3694 echo "shared                    ${shared-no}"
3695 echo "postprocessing support    ${postproc-no}"
3696 echo "new filter support        ${avfilter-no}"
3697 echo "network support           ${network-no}"
3698 echo "threading support         ${thread_type-no}"
3699 echo "safe bitstream reader     ${safe_bitstream_reader-no}"
3700 echo "SDL support               ${sdl-no}"
3701 echo "libdxva2 enabled          ${dxva2-no}"
3702 echo "libva enabled             ${vaapi-no}"
3703 echo "libvdpau enabled          ${vdpau-no}"
3704 echo "AVISynth enabled          ${avisynth-no}"
3705 echo "frei0r enabled            ${frei0r-no}"
3706 echo "gnutls enabled            ${gnutls-no}"
3707 echo "libaacplus enabled        ${libaacplus-no}"
3708 echo "libass enabled            ${libass-no}"
3709 echo "libcaca enabled           ${libcaca-no}"
3710 echo "libcdio support           ${libcdio-no}"
3711 echo "libcelt enabled           ${libcelt-no}"
3712 echo "libdc1394 support         ${libdc1394-no}"
3713 echo "libfaac enabled           ${libfaac-no}"
3714 echo "libfdk-aac enabled        ${libfdk_aac-no}"
3715 echo "libgsm enabled            ${libgsm-no}"
3716 echo "libiec61883 support       ${libiec61883-no}"
3717 echo "libilbc enabled           ${libilbc-no}"
3718 echo "libmodplug enabled        ${libmodplug-no}"
3719 echo "libmp3lame enabled        ${libmp3lame-no}"
3720 echo "libnut enabled            ${libnut-no}"
3721 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3722 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3723 echo "libopencv support         ${libopencv-no}"
3724 echo "libopenjpeg enabled       ${libopenjpeg-no}"
3725 echo "libopus enabled           ${libopus-no}"
3726 echo "libpulse enabled          ${libpulse-no}"
3727 echo "librtmp enabled           ${librtmp-no}"
3728 echo "libschroedinger enabled   ${libschroedinger-no}"
3729 echo "libspeex enabled          ${libspeex-no}"
3730 echo "libstagefright-h264 enabled    ${libstagefright_h264-no}"
3731 echo "libtheora enabled         ${libtheora-no}"
3732 echo "libutvideo enabled        ${libutvideo-no}"
3733 echo "libv4l2 enabled           ${libv4l2-no}"
3734 echo "libvo-aacenc support      ${libvo_aacenc-no}"
3735 echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3736 echo "libvorbis enabled         ${libvorbis-no}"
3737 echo "libvpx enabled            ${libvpx-no}"
3738 echo "libx264 enabled           ${libx264-no}"
3739 echo "libxavs enabled           ${libxavs-no}"
3740 echo "libxvid enabled           ${libxvid-no}"
3741 echo "openal enabled            ${openal-no}"
3742 echo "openssl enabled           ${openssl-no}"
3743 echo "zlib enabled              ${zlib-no}"
3744 echo "bzlib enabled             ${bzlib-no}"
3745 echo "texi2html enabled         ${texi2html-no}"
3746 echo "pod2man enabled           ${pod2man-no}"
3747 echo "makeinfo enabled          ${makeinfo-no}"
3748 test -n "$random_seed" &&
3749     echo "random seed               ${random_seed}"
3750 echo
3751
3752 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3753     echo "Enabled ${type}s:"
3754     eval list=\$$(toupper $type)_LIST
3755     print_enabled '_*' $list | sort | pr -r -3 -t
3756     echo
3757 done
3758
3759 license="LGPL version 2.1 or later"
3760 if enabled nonfree; then
3761     license="nonfree and unredistributable"
3762 elif enabled gplv3; then
3763     license="GPL version 3 or later"
3764 elif enabled lgplv3; then
3765     license="LGPL version 3 or later"
3766 elif enabled gpl; then
3767     license="GPL version 2 or later"
3768 fi
3769
3770 echo "License: $license"
3771
3772 echo "Creating config.mak and config.h..."
3773
3774 test -e Makefile || $ln_s "$source_path/Makefile" .
3775
3776 enabled stripping || strip="echo skipping strip"
3777
3778 config_files="$TMPH config.mak"
3779
3780 cat > config.mak <<EOF
3781 # Automatically generated by configure - do not modify!
3782 ifndef FFMPEG_CONFIG_MAK
3783 FFMPEG_CONFIG_MAK=1
3784 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3785 prefix=$prefix
3786 LIBDIR=\$(DESTDIR)$libdir
3787 SHLIBDIR=\$(DESTDIR)$shlibdir
3788 INCDIR=\$(DESTDIR)$incdir
3789 BINDIR=\$(DESTDIR)$bindir
3790 DATADIR=\$(DESTDIR)$datadir
3791 MANDIR=\$(DESTDIR)$mandir
3792 SRC_PATH=$source_path
3793 ifndef MAIN_MAKEFILE
3794 SRC_PATH:=\$(SRC_PATH:.%=..%)
3795 endif
3796 CC_IDENT=$cc_ident
3797 ARCH=$arch
3798 CC=$cc
3799 CXX=$cxx
3800 AS=$as
3801 LD=$ld
3802 DEPCC=$dep_cc
3803 YASM=$yasmexe
3804 YASMDEP=$yasmexe
3805 AR=$ar
3806 RANLIB=$ranlib
3807 CP=cp -p
3808 LN_S=$ln_s
3809 STRIP=$strip
3810 CPPFLAGS=$CPPFLAGS
3811 CFLAGS=$CFLAGS
3812 CXXFLAGS=$CXXFLAGS
3813 ASFLAGS=$ASFLAGS
3814 AS_O=$CC_O
3815 CC_O=$CC_O
3816 CXX_O=$CXX_O
3817 LDFLAGS=$LDFLAGS
3818 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3819 SHFLAGS=$SHFLAGS
3820 YASMFLAGS=$YASMFLAGS
3821 BUILDSUF=$build_suffix
3822 PROGSSUF=$progs_suffix
3823 FULLNAME=$FULLNAME
3824 LIBPREF=$LIBPREF
3825 LIBSUF=$LIBSUF
3826 LIBNAME=$LIBNAME
3827 SLIBPREF=$SLIBPREF
3828 SLIBSUF=$SLIBSUF
3829 EXESUF=$EXESUF
3830 EXTRA_VERSION=$extra_version
3831 DEPFLAGS=$DEPFLAGS
3832 CCDEP=$CCDEP
3833 CXXDEP=$CXXDEP
3834 ASDEP=$ASDEP
3835 CC_DEPFLAGS=$CC_DEPFLAGS
3836 AS_DEPFLAGS=$AS_DEPFLAGS
3837 HOSTCC=$host_cc
3838 HOSTCFLAGS=$host_cflags
3839 HOSTEXESUF=$HOSTEXESUF
3840 HOSTLDFLAGS=$host_ldflags
3841 HOSTLIBS=$host_libs
3842 TARGET_EXEC=$target_exec
3843 TARGET_PATH=$target_path
3844 SDL_LIBS=$sdl_libs
3845 SDL_CFLAGS=$sdl_cflags
3846 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3847 EXTRALIBS=$extralibs
3848 INSTALL=$install
3849 LIBTARGET=${LIBTARGET}
3850 SLIBNAME=${SLIBNAME}
3851 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3852 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3853 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3854 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3855 SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
3856 SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
3857 SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
3858 SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
3859 SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3860 NOREDZONE_FLAGS=$noredzone_flags
3861 EOF
3862
3863 get_version(){
3864     lcname=$1
3865     name=$(toupper $lcname)
3866     file=$source_path/$lcname/version.h
3867     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3868     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3869     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3870     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3871 }
3872
3873 get_version_old(){
3874     name=$1
3875     file=$source_path/$2
3876 # This condition will be removed when we stop supporting old libpostproc versions
3877 if ! test "$name" = LIBPOSTPROC || test "$postproc_version" = current; then
3878     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3879     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3880 fi
3881     lcname=$(tolower $name)
3882     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3883     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3884 }
3885
3886 get_version_old LIBPOSTPROC libpostproc/postprocess.h
3887 get_version_old LIBSWRESAMPLE libswresample/swresample.h
3888
3889 get_version libavcodec
3890 get_version libavdevice
3891 get_version libavfilter
3892 get_version libavformat
3893 get_version libavresample
3894 get_version libavutil
3895 get_version libswscale
3896
3897 cat > $TMPH <<EOF
3898 /* Automatically generated by configure - do not modify! */
3899 #ifndef FFMPEG_CONFIG_H
3900 #define FFMPEG_CONFIG_H
3901 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3902 #define FFMPEG_LICENSE "$(c_escape $license)"
3903 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3904 #define AVCONV_DATADIR "$(eval c_escape $datadir)"
3905 #define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
3906 #define av_restrict $_restrict
3907 #define EXTERN_PREFIX "${extern_prefix}"
3908 #define EXTERN_ASM ${extern_prefix}
3909 #define SLIBSUF "$SLIBSUF"
3910 EOF
3911
3912 test -n "$assert_level" &&
3913     echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
3914
3915 test -n "$malloc_prefix" &&
3916     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3917
3918 if enabled yasm; then
3919     append config_files $TMPASM
3920     printf '' >$TMPASM
3921 fi
3922
3923 print_config ARCH_   "$config_files" $ARCH_LIST
3924 print_config HAVE_   "$config_files" $HAVE_LIST
3925 print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3926                                      $CONFIG_EXTRA      \
3927                                      $ALL_COMPONENTS    \
3928
3929 cat >>config.mak <<EOF
3930 LAVF_FATE_TESTS=$(print_enabled -n _test $LAVF_FATE_TESTS)
3931 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3932 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3933 SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3934 EOF
3935
3936 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3937 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3938
3939 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3940 cp_if_changed $TMPH config.h
3941 touch .config
3942
3943 enabled yasm && cp_if_changed $TMPASM config.asm
3944
3945 cat > $TMPH <<EOF
3946 /* Generated by ffconf */
3947 #ifndef AVUTIL_AVCONFIG_H
3948 #define AVUTIL_AVCONFIG_H
3949 EOF
3950
3951 test "$postproc_version" != current && cat >> $TMPH <<EOF
3952 #define LIBPOSTPROC_VERSION_MAJOR $LIBPOSTPROC_VERSION_MAJOR
3953 #define LIBPOSTPROC_VERSION_MINOR $LIBPOSTPROC_VERSION_MINOR
3954 #define LIBPOSTPROC_VERSION_MICRO $LIBPOSTPROC_VERSION_MICRO
3955 EOF
3956
3957 print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3958
3959 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3960
3961 cp_if_changed $TMPH libavutil/avconfig.h
3962
3963 test -n "$WARNINGS" && printf "\n$WARNINGS"
3964
3965 # build pkg-config files
3966
3967 pkgconfig_generate(){
3968 name=$1
3969 shortname=${name#lib}${build_suffix}
3970 comment=$2
3971 version=$3
3972 libs=$4
3973 requires=$5
3974 enabled ${name#lib} || return 0
3975 mkdir -p $name
3976 cat <<EOF > $name/$name.pc
3977 prefix=$prefix
3978 exec_prefix=\${prefix}
3979 libdir=$libdir
3980 includedir=$incdir
3981
3982 Name: $name
3983 Description: $comment
3984 Version: $version
3985 Requires: $(enabled shared || echo $requires)
3986 Requires.private: $(enabled shared && echo $requires)
3987 Conflicts:
3988 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3989 Libs.private: $(enabled shared && echo $libs)
3990 Cflags: -I\${includedir}
3991 EOF
3992
3993 mkdir -p doc/examples/pc-uninstalled
3994 includedir=${source_path}
3995 [ "$includedir" = . ] && includedir="\${pcfiledir}/../../.."
3996 cat <<EOF > doc/examples/pc-uninstalled/$name.pc
3997 prefix=
3998 exec_prefix=
3999 libdir=\${pcfiledir}/../../../$name
4000 includedir=${includedir}
4001
4002 Name: $name
4003 Description: $comment
4004 Version: $version
4005 Requires: $requires
4006 Conflicts:
4007 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
4008 Cflags: -I\${includedir}
4009 EOF
4010 }
4011
4012 libavfilter_pc_deps=""
4013 enabled libavfilter_deps_avcodec    && prepend libavfilter_pc_deps "libavcodec = $LIBAVCODEC_VERSION,"
4014 enabled libavfilter_deps_avformat   && prepend libavfilter_pc_deps "libavformat = $LIBAVFORMAT_VERSION,"
4015 enabled libavfilter_deps_swscale    && prepend libavfilter_pc_deps "libswscale = $LIBSWSCALE_VERSION,"
4016 enabled libavfilter_deps_swresample && prepend libavfilter_pc_deps "libswresample = $LIBSWRESAMPLE_VERSION,"
4017 enabled libavfilter_deps_postproc   && prepend libavfilter_pc_deps "libpostproc = $LIBPOSTPROC_VERSION,"
4018 libavfilter_pc_deps=${libavfilter_pc_deps%, }
4019
4020 libavdevice_pc_deps="libavformat = $LIBAVFORMAT_VERSION"
4021 enabled lavfi_indev && prepend libavdevice_pc_deps "libavfilter = $LIBAVFILTER_VERSION,"
4022
4023 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION" "$LIBM"
4024 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
4025 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
4026 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "$libavdevice_pc_deps"
4027 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "$libavfilter_pc_deps"
4028 pkgconfig_generate libpostproc "FFmpeg postprocessing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
4029 pkgconfig_generate libavresample "Libav audio resampling library" "$LIBAVRESAMPLE_VERSION" "$extralibs"
4030 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"
4031 pkgconfig_generate libswresample "FFmpeg audio rescaling library" "$LIBSWRESAMPLE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"