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

   1 #!/bin/sh
   2 #
   3 # FFmpeg configure script
   4 #
   5 # Copyright (c) 2000-2002 Fabrice Bellard
   6 # Copyright (c) 2005-2008 Diego Biurrun
   7 # Copyright (c) 2005-2008 Mans Rullgard
   8 #
   9
  10 # Prevent locale nonsense from breaking basic text processing.
  11 LC_ALL=C
  12 export LC_ALL
  13
  14 # make sure we are running under a compatible shell
  15 # try to make this part work with most shells
  16
  17 try_exec(){
  18     echo "Trying shell $1"
  19     type "$1" > /dev/null 2>&1 && exec "$@"
  20 }
  21
  22 unset foo
  23 (: ${foo%%bar}) 2> /dev/null
  24 E1="$?"
  25
  26 (: ${foo?}) 2> /dev/null
  27 E2="$?"
  28
  29 if test "$E1" != 0 || test "$E2" = 0; then
  30     echo "Broken shell detected.  Trying alternatives."
  31     export FF_CONF_EXEC
  32     if test "0$FF_CONF_EXEC" -lt 1; then
  33         FF_CONF_EXEC=1
  34         try_exec bash "$0" "$@"
  35     fi
  36     if test "0$FF_CONF_EXEC" -lt 2; then
  37         FF_CONF_EXEC=2
  38         try_exec ksh "$0" "$@"
  39     fi
  40     if test "0$FF_CONF_EXEC" -lt 3; then
  41         FF_CONF_EXEC=3
  42         try_exec /usr/xpg4/bin/sh "$0" "$@"
  43     fi
  44     echo "No compatible shell script interpreter found."
  45     echo "This configure script requires a POSIX-compatible shell"
  46     echo "such as bash or ksh."
  47     echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
  48     echo "Instead, install a working POSIX-compatible shell."
  49     echo "Disabling this configure test will create a broken FFmpeg."
  50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
  51         echo "This bash version ($BASH_VERSION) is broken on your platform."
  52         echo "Upgrade to a later version if available."
  53     fi
  54     exit 1
  55 fi
  56
  57 show_help(){
  58 cat <<EOF
  59 Usage: configure [options]
  60 Options: [defaults in brackets after descriptions]
  61
  62 Standard options:
  63   --help                   print this message
  64   --logfile=FILE           log tests and output to FILE [config.log]
  65   --disable-logging        do not log configure debug information
  66   --prefix=PREFIX          install in PREFIX [$prefix]
  67   --bindir=DIR             install binaries in DIR [PREFIX/bin]
  68   --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
  69   --libdir=DIR             install libs in DIR [PREFIX/lib]
  70   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
  71   --incdir=DIR             install includes in DIR [PREFIX/include]
  72   --mandir=DIR             install man page in DIR [PREFIX/share/man]
  73
  74 Configuration options:
  75   --disable-static         do not build static libraries [no]
  76   --enable-shared          build shared libraries [no]
  77   --enable-gpl             allow use of GPL code, the resulting libs
  78                            and binaries will be under GPL [no]
  79   --enable-version3        upgrade (L)GPL to version 3 [no]
  80   --enable-nonfree         allow use of nonfree code, the resulting libs
  81                            and binaries will be unredistributable [no]
  82   --disable-doc            do not build documentation
  83   --disable-ffmpeg         disable ffmpeg build
  84   --disable-ffplay         disable ffplay build
  85   --disable-ffprobe        disable ffprobe build
  86   --disable-ffserver       disable ffserver build
  87   --disable-avdevice       disable libavdevice build
  88   --disable-avcodec        disable libavcodec build
  89   --disable-avformat       disable libavformat build
  90   --disable-swscale        disable libswscale build
  91   --enable-postproc        enable GPLed postprocessing support [no]
  92   --disable-avfilter       disable video filter support [no]
  93   --enable-avfilter-lavf   video filters dependent on avformat [no]
  94   --disable-pthreads       disable pthreads [auto]
  95   --enable-w32threads      use Win32 threads [no]
  96   --enable-x11grab         enable X11 grabbing [no]
  97   --disable-network        disable network support [no]
  98   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
  99   --enable-gray            enable full grayscale support (slower color)
 100   --disable-swscale-alpha  disable alpha channel support in swscale
 101   --disable-fastdiv        disable table-based division
 102   --enable-small           optimize for size instead of speed
 103   --disable-aandct         disable AAN DCT code
 104   --disable-dct            disable DCT code
 105   --disable-fft            disable FFT code
 106   --disable-golomb         disable Golomb code
 107   --disable-lpc            disable LPC code
 108   --disable-mdct           disable MDCT code
 109   --disable-rdft           disable RDFT code
 110   --disable-vaapi          disable VAAPI code
 111   --disable-vdpau          disable VDPAU code
 112   --disable-dxva2          disable DXVA2 code
 113   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 114   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 115   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 116   --disable-everything     disable all components listed below
 117   --disable-encoder=NAME   disable encoder NAME
 118   --enable-encoder=NAME    enable encoder NAME
 119   --disable-encoders       disable all encoders
 120   --disable-decoder=NAME   disable decoder NAME
 121   --enable-decoder=NAME    enable decoder NAME
 122   --disable-decoders       disable all decoders
 123   --disable-hwaccel=NAME   disable hwaccel NAME
 124   --enable-hwaccel=NAME    enable hwaccel NAME
 125   --disable-hwaccels       disable all hwaccels
 126   --disable-muxer=NAME     disable muxer NAME
 127   --enable-muxer=NAME      enable muxer NAME
 128   --disable-muxers         disable all muxers
 129   --disable-demuxer=NAME   disable demuxer NAME
 130   --enable-demuxer=NAME    enable demuxer NAME
 131   --disable-demuxers       disable all demuxers
 132   --enable-parser=NAME     enable parser NAME
 133   --disable-parser=NAME    disable parser NAME
 134   --disable-parsers        disable all parsers
 135   --enable-bsf=NAME        enable bitstream filter NAME
 136   --disable-bsf=NAME       disable bitstream filter NAME
 137   --disable-bsfs           disable all bitstream filters
 138   --enable-protocol=NAME   enable protocol NAME
 139   --disable-protocol=NAME  disable protocol NAME
 140   --disable-protocols      disable all protocols
 141   --disable-indev=NAME     disable input device NAME
 142   --disable-outdev=NAME    disable output device NAME
 143   --disable-indevs         disable input devices
 144   --disable-outdevs        disable output devices
 145   --disable-devices        disable all devices
 146   --enable-filter=NAME     enable filter NAME
 147   --disable-filter=NAME    disable filter NAME
 148   --disable-filters        disable all filters
 149   --list-decoders          show all available decoders
 150   --list-encoders          show all available encoders
 151   --list-hwaccels          show all available hardware accelerators
 152   --list-muxers            show all available muxers
 153   --list-demuxers          show all available demuxers
 154   --list-parsers           show all available parsers
 155   --list-protocols         show all available protocols
 156   --list-bsfs              show all available bitstream filters
 157   --list-indevs            show all available input devices
 158   --list-outdevs           show all available output devices
 159   --list-filters           show all available filters
 160
 161 External library support:
 162   --enable-avisynth        enable reading of AVISynth script files [no]
 163   --enable-bzlib           enable bzlib [autodetect]
 164   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 165   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 166   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 167                            and libraw1394 [no]
 168   --enable-libdirac        enable Dirac support via libdirac [no]
 169   --enable-libfaac         enable FAAC support via libfaac [no]
 170   --enable-libgsm          enable GSM support via libgsm [no]
 171   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 172   --enable-libnut          enable NUT (de)muxing via libnut,
 173                            native (de)muxer exists [no]
 174   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 175   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 176   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 177   --enable-libspeex        enable Speex decoding via libspeex [no]
 178   --enable-libtheora       enable Theora encoding via libtheora [no]
 179   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 180                            native implementation exists [no]
 181   --enable-libvpx          enable VP8 support via libvpx [no]
 182   --enable-libx264         enable H.264 encoding via x264 [no]
 183   --enable-libxvid         enable Xvid encoding via xvidcore,
 184                            native MPEG-4/Xvid encoder exists [no]
 185   --enable-mlib            enable Sun medialib [no]
 186   --enable-zlib            enable zlib [autodetect]
 187
 188 Advanced options (experts only):
 189   --source-path=PATH       path to source code [$source_path]
 190   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 191   --enable-cross-compile   assume a cross-compiler is used
 192   --sysroot=PATH           root of cross-build tree
 193   --sysinclude=PATH        location of cross-build system headers
 194   --target-os=OS           compiler targets OS [$target_os]
 195   --target-exec=CMD        command to run executables on target
 196   --target-path=DIR        path to view of build directory on target
 197   --nm=NM                  use nm tool
 198   --ar=AR                  use archive tool AR [$ar_default]
 199   --as=AS                  use assembler AS [$as_default]
 200   --cc=CC                  use C compiler CC [$cc_default]
 201   --ld=LD                  use linker LD
 202   --host-cc=HOSTCC         use host C compiler HOSTCC
 203   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 204   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 205   --host-libs=HLIBS        use libs HLIBS when linking for host
 206   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 207   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 208   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 209   --extra-version=STRING   version string suffix []
 210   --build-suffix=SUFFIX    library name suffix []
 211   --arch=ARCH              select architecture [$arch]
 212   --cpu=CPU                select the minimum required CPU (affects
 213                            instruction selection, may crash on older CPUs)
 214   --disable-asm            disable all assembler optimizations
 215   --disable-altivec        disable AltiVec optimizations
 216   --disable-amd3dnow       disable 3DNow! optimizations
 217   --disable-amd3dnowext    disable 3DNow! extended optimizations
 218   --disable-mmx            disable MMX optimizations
 219   --disable-mmx2           disable MMX2 optimizations
 220   --disable-sse            disable SSE optimizations
 221   --disable-ssse3          disable SSSE3 optimizations
 222   --disable-armv5te        disable armv5te optimizations
 223   --disable-armv6          disable armv6 optimizations
 224   --disable-armv6t2        disable armv6t2 optimizations
 225   --disable-armvfp         disable ARM VFP optimizations
 226   --disable-iwmmxt         disable iwmmxt optimizations
 227   --disable-mmi            disable MMI optimizations
 228   --disable-neon           disable neon optimizations
 229   --disable-vis            disable VIS optimizations
 230   --disable-yasm           disable use of yasm assembler
 231   --enable-pic             build position-independent code
 232   --malloc-prefix=PFX      prefix malloc and related names with PFX
 233   --enable-sram            allow use of on-chip SRAM
 234
 235 Developer options (useful when working on FFmpeg itself):
 236   --disable-debug          disable debugging symbols
 237   --enable-debug=LEVEL     set the debug level [$debuglevel]
 238   --disable-optimizations  disable compiler optimizations
 239   --enable-extra-warnings  enable more compiler warnings
 240   --disable-stripping      disable stripping of executables and shared libraries
 241   --samples=PATH           location of test samples for FATE
 242
 243 NOTE: Object files are built at the place where configure is launched.
 244 EOF
 245   exit 0
 246 }
 247
 248 quotes='""'
 249
 250 log(){
 251     echo "$@" >> $logfile
 252 }
 253
 254 log_file(){
 255     log BEGIN $1
 256     pr -n -t $1 >> $logfile
 257     log END $1
 258 }
 259
 260 echolog(){
 261     log "$@"
 262     echo "$@"
 263 }
 264
 265 warn(){
 266     log "WARNING: $*"
 267     WARNINGS="${WARNINGS}WARNING: $*\n"
 268 }
 269
 270 die(){
 271     echolog "$@"
 272     cat <<EOF
 273
 274 If you think configure made a mistake, make sure you are using the latest
 275 version from SVN.  If the latest version fails, report the problem to the
 276 ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
 277 EOF
 278     if disabled logging; then
 279         cat <<EOF
 280 Rerun configure with logging enabled (do not use --disable-logging), and
 281 include the log this produces with your report.
 282 EOF
 283     else
 284 cat <<EOF
 285 Include the log file "$logfile" produced by configure as this will help
 286 solving the problem.
 287 EOF
 288     fi
 289     exit 1
 290 }
 291
 292 # Avoid locale weirdness, besides we really just want to translate ASCII.
 293 toupper(){
 294     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
 295 }
 296
 297 tolower(){
 298     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
 299 }
 300
 301 c_escape(){
 302     echo "$*" | sed 's/["\\]/\\\0/g'
 303 }
 304
 305 sh_quote(){
 306     v=$(echo "$1" | sed "s/'/'\\\\''/g")
 307     test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
 308     echo "$v"
 309 }
 310
 311 filter(){
 312     pat=$1
 313     shift
 314     for v; do
 315         eval "case $v in $pat) echo $v ;; esac"
 316     done
 317 }
 318
 319 map(){
 320     m=$1
 321     shift
 322     for v; do eval $m; done
 323 }
 324
 325 set_all(){
 326     value=$1
 327     shift
 328     for var in $*; do
 329         eval $var=$value
 330     done
 331 }
 332
 333 set_weak(){
 334     value=$1
 335     shift
 336     for var; do
 337         eval : \${$var:=$value}
 338     done
 339 }
 340
 341 pushvar(){
 342     for var in $*; do
 343         eval level=\${${var}_level:=0}
 344         eval ${var}_${level}="\$$var"
 345         eval ${var}_level=$(($level+1))
 346     done
 347 }
 348
 349 popvar(){
 350     for var in $*; do
 351         eval level=\${${var}_level:-0}
 352         test $level = 0 && continue
 353         eval level=$(($level-1))
 354         eval $var="\${${var}_${level}}"
 355         eval ${var}_level=$level
 356         eval unset ${var}_${level}
 357     done
 358 }
 359
 360 enable(){
 361     set_all yes $*
 362 }
 363
 364 disable(){
 365     set_all no $*
 366 }
 367
 368 enable_weak(){
 369     set_weak yes $*
 370 }
 371
 372 disable_weak(){
 373     set_weak no $*
 374 }
 375
 376 enable_safe(){
 377     for var; do
 378         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 379     done
 380 }
 381
 382 disable_safe(){
 383     for var; do
 384         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
 385     done
 386 }
 387
 388 do_enable_deep(){
 389     for var; do
 390         enabled $var && continue
 391         eval sel="\$${var}_select"
 392         eval sgs="\$${var}_suggest"
 393         pushvar var sgs
 394         enable_deep $sel
 395         popvar sgs
 396         enable_deep_weak $sgs
 397         popvar var
 398     done
 399 }
 400
 401 enable_deep(){
 402     do_enable_deep $*
 403     enable $*
 404 }
 405
 406 enable_deep_weak(){
 407     do_enable_deep $*
 408     enable_weak $*
 409 }
 410
 411 enabled(){
 412     test "${1#!}" = "$1" && op== || op=!=
 413     eval test "x\$${1#!}" $op "xyes"
 414 }
 415
 416 disabled(){
 417     test "${1#!}" = "$1" && op== || op=!=
 418     eval test "x\$${1#!}" $op "xno"
 419 }
 420
 421 enabled_all(){
 422     for opt; do
 423         enabled $opt || return 1
 424     done
 425 }
 426
 427 disabled_all(){
 428     for opt; do
 429         disabled $opt || return 1
 430     done
 431 }
 432
 433 enabled_any(){
 434     for opt; do
 435         enabled $opt && return 0
 436     done
 437 }
 438
 439 disabled_any(){
 440     for opt; do
 441         disabled $opt && return 0
 442     done
 443     return 1
 444 }
 445
 446 set_default(){
 447     for opt; do
 448         eval : \${$opt:=\$${opt}_default}
 449     done
 450 }
 451
 452 is_in(){
 453     value=$1
 454     shift
 455     for var in $*; do
 456         [ $var = $value ] && return 0
 457     done
 458     return 1
 459 }
 460
 461 check_deps(){
 462     for cfg; do
 463         cfg="${cfg#!}"
 464         enabled ${cfg}_checking && die "Circular dependency for $cfg."
 465         disabled ${cfg}_checking && continue
 466         enable ${cfg}_checking
 467
 468         eval dep_all="\$${cfg}_deps"
 469         eval dep_any="\$${cfg}_deps_any"
 470         eval dep_sel="\$${cfg}_select"
 471         eval dep_sgs="\$${cfg}_suggest"
 472         eval dep_ifa="\$${cfg}_if"
 473         eval dep_ifn="\$${cfg}_if_any"
 474
 475         pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 476         check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
 477         popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
 478
 479         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
 480         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
 481         enabled_all  $dep_all || disable $cfg
 482         enabled_any  $dep_any || disable $cfg
 483         disabled_any $dep_sel && disable $cfg
 484
 485         if enabled $cfg; then
 486             eval dep_extralibs="\$${cfg}_extralibs"
 487             test -n "$dep_extralibs" && add_extralibs $dep_extralibs
 488             enable_deep $dep_sel
 489             enable_deep_weak $dep_sgs
 490         fi
 491
 492         disable ${cfg}_checking
 493     done
 494 }
 495
 496 print_config(){
 497     pfx=$1
 498     header=$2
 499     makefile=$3
 500     shift 3
 501     for cfg; do
 502         ucname="$(toupper $cfg)"
 503         if enabled $cfg; then
 504             echo "#define ${pfx}${ucname} 1" >> $header
 505             echo "${pfx}${ucname}=yes" >> $makefile
 506         else
 507             echo "#define ${pfx}${ucname} 0" >> $header
 508             echo "!${pfx}${ucname}=yes" >> $makefile
 509         fi
 510     done
 511 }
 512
 513 print_enabled(){
 514     test "$1" = -n && end=" " && shift || end="\n"
 515     suf=$1
 516     shift
 517     for v; do
 518         enabled $v && printf "%s$end" ${v%$suf};
 519     done
 520 }
 521
 522 append(){
 523     var=$1
 524     shift
 525     eval "$var=\"\$$var $*\""
 526 }
 527
 528 prepend(){
 529     var=$1
 530     shift
 531     eval "$var=\"$* \$$var\""
 532 }
 533
 534 add_cppflags(){
 535     append CPPFLAGS $($filter_cppflags "$@")
 536 }
 537
 538 add_cflags(){
 539     append CFLAGS $($filter_cflags "$@")
 540 }
 541
 542 add_asflags(){
 543     append ASFLAGS $($filter_asflags "$@")
 544 }
 545
 546 add_ldflags(){
 547     append LDFLAGS "$@"
 548 }
 549
 550 add_extralibs(){
 551     prepend extralibs "$@"
 552 }
 553
 554 check_cmd(){
 555     log "$@"
 556     "$@" >> $logfile 2>&1
 557 }
 558
 559 check_cc(){
 560     log check_cc "$@"
 561     cat > $TMPC
 562     log_file $TMPC
 563     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 564 }
 565
 566 check_cpp(){
 567     log check_cpp "$@"
 568     cat > $TMPC
 569     log_file $TMPC
 570     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 571 }
 572
 573 check_as(){
 574     log check_as "$@"
 575     cat > $TMPC
 576     log_file $TMPC
 577     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 578 }
 579
 580 check_asm(){
 581     log check_asm "$@"
 582     name="$1"
 583     code="$2"
 584     shift 2
 585     disable $name
 586     check_as "$@" <<EOF && enable $name
 587 void foo(void){ __asm__ volatile($code); }
 588 EOF
 589 }
 590
 591 check_yasm(){
 592     log check_yasm "$@"
 593     echo "$1" > $TMPS
 594     log_file $TMPS
 595     shift 1
 596     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 597 }
 598
 599 check_ld(){
 600     log check_ld "$@"
 601     flags=''
 602     libs=''
 603     for f; do
 604         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 605     done
 606     check_cc $($filter_cflags $flags) || return
 607     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 608 }
 609
 610 check_cppflags(){
 611     log check_cppflags "$@"
 612     set -- $($filter_cppflags "$@")
 613     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 614 int x;
 615 EOF
 616 }
 617
 618 check_cflags(){
 619     log check_cflags "$@"
 620     set -- $($filter_cflags "$@")
 621     check_cc "$@" <<EOF && append CFLAGS "$@"
 622 int x;
 623 EOF
 624 }
 625
 626 test_ldflags(){
 627     log test_ldflags "$@"
 628     check_ld "$@" <<EOF
 629 int main(void){ return 0; }
 630 EOF
 631 }
 632
 633 check_ldflags(){
 634     log check_ldflags "$@"
 635     test_ldflags "$@" && add_ldflags "$@"
 636 }
 637
 638 check_header(){
 639     log check_header "$@"
 640     header=$1
 641     shift
 642     disable_safe $header
 643     check_cpp "$@" <<EOF && enable_safe $header
 644 #include <$header>
 645 int x;
 646 EOF
 647 }
 648
 649 check_func(){
 650     log check_func "$@"
 651     func=$1
 652     shift
 653     disable $func
 654     check_ld "$@" <<EOF && enable $func
 655 extern int $func();
 656 int main(void){ $func(); }
 657 EOF
 658 }
 659
 660 check_mathfunc(){
 661     log check_mathfunc "$@"
 662     func=$1
 663     shift
 664     disable $func
 665     check_ld "$@" <<EOF && enable $func
 666 #include <math.h>
 667 float foo(float f) { return $func(f); }
 668 int main(void){ return 0; }
 669 EOF
 670 }
 671
 672 check_func_headers(){
 673     log check_func_headers "$@"
 674     headers=$1
 675     func=$2
 676     shift 2
 677     disable $func
 678     incs=""
 679     for hdr in $headers; do
 680         incs="$incs
 681 #include <$hdr>"
 682     done
 683     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 684 $incs
 685 int main(int argc, char **argv){
 686     return (long) $func;
 687 }
 688 EOF
 689 }
 690
 691 check_cpp_condition(){
 692     log check_cpp_condition "$@"
 693     header=$1
 694     condition=$2
 695     shift 2
 696     check_cpp $($filter_cppflags "$@") <<EOF
 697 #include <$header>
 698 #if !($condition)
 699 #error "unsatisfied condition: $condition"
 700 #endif
 701 EOF
 702 }
 703
 704 check_lib(){
 705     log check_lib "$@"
 706     header="$1"
 707     func="$2"
 708     shift 2
 709     check_header $header && check_func $func "$@" && add_extralibs "$@"
 710 }
 711
 712 check_lib2(){
 713     log check_lib2 "$@"
 714     headers="$1"
 715     func="$2"
 716     shift 2
 717     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 718 }
 719
 720 check_exec(){
 721     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 722 }
 723
 724 check_exec_crash(){
 725     code=$(cat)
 726
 727     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 728     # are safe but may not be available everywhere.  Thus we use
 729     # raise(SIGTERM) instead.  The check is run in a subshell so we
 730     # can redirect the "Terminated" message from the shell.  SIGBUS
 731     # is not defined by standard C so it is used conditionally.
 732
 733     (check_exec "$@") >> $logfile 2>&1 <<EOF
 734 #include <signal.h>
 735 static void sighandler(int sig){
 736     raise(SIGTERM);
 737 }
 738 int main(void){
 739     signal(SIGILL, sighandler);
 740     signal(SIGFPE, sighandler);
 741     signal(SIGSEGV, sighandler);
 742 #ifdef SIGBUS
 743     signal(SIGBUS, sighandler);
 744 #endif
 745     { $code }
 746 }
 747 EOF
 748 }
 749
 750 check_type(){
 751     log check_type "$@"
 752     headers=$1
 753     type=$2
 754     shift 2
 755     disable_safe "$type"
 756     incs=""
 757     for hdr in $headers; do
 758         incs="$incs
 759 #include <$hdr>"
 760     done
 761     check_cc "$@" <<EOF && enable_safe "$type"
 762 $incs
 763 $type v;
 764 EOF
 765 }
 766
 767 check_struct(){
 768     log check_type "$@"
 769     headers=$1
 770     struct=$2
 771     member=$3
 772     shift 3
 773     disable_safe "${struct}_${member}"
 774     incs=""
 775     for hdr in $headers; do
 776         incs="$incs
 777 #include <$hdr>"
 778     done
 779     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 780 $incs
 781 const void *p = &(($struct *)0)->$member;
 782 EOF
 783 }
 784
 785 require(){
 786     name="$1"
 787     header="$2"
 788     func="$3"
 789     shift 3
 790     check_lib $header $func "$@" || die "ERROR: $name not found"
 791 }
 792
 793 require2(){
 794     name="$1"
 795     headers="$2"
 796     func="$3"
 797     shift 3
 798     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 799 }
 800
 801 check_host_cc(){
 802     log check_host_cc "$@"
 803     cat > $TMPC
 804     log_file $TMPC
 805     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 806 }
 807
 808 check_host_cflags(){
 809     log check_host_cflags "$@"
 810     check_host_cc "$@" <<EOF && append host_cflags "$@"
 811 int x;
 812 EOF
 813 }
 814
 815 apply(){
 816     file=$1
 817     shift
 818     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 819 }
 820
 821 cp_if_changed(){
 822     cmp -s "$1" "$2" &&
 823         echo "$2 is unchanged" ||
 824         cp -f "$1" "$2"
 825 }
 826
 827 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 828 # system-dependent things.
 829
 830 COMPONENT_LIST="
 831     bsfs
 832     decoders
 833     demuxers
 834     encoders
 835     filters
 836     hwaccels
 837     indevs
 838     muxers
 839     outdevs
 840     parsers
 841     protocols
 842 "
 843
 844 CONFIG_LIST="
 845     $COMPONENT_LIST
 846     aandct
 847     avcodec
 848     avdevice
 849     avfilter
 850     avfilter_lavf
 851     avformat
 852     avisynth
 853     bzlib
 854     dct
 855     doc
 856     dwt
 857     dxva2
 858     fastdiv
 859     ffmpeg
 860     ffplay
 861     ffprobe
 862     ffserver
 863     fft
 864     golomb
 865     gpl
 866     gray
 867     h264dsp
 868     hardcoded_tables
 869     libdc1394
 870     libdirac
 871     libfaac
 872     libgsm
 873     libmp3lame
 874     libnut
 875     libopencore_amrnb
 876     libopencore_amrwb
 877     libopenjpeg
 878     librtmp
 879     libschroedinger
 880     libspeex
 881     libtheora
 882     libvorbis
 883     libvpx
 884     libx264
 885     libxvid
 886     lpc
 887     lsp
 888     mdct
 889     memalign_hack
 890     mlib
 891     mpegaudio_hp
 892     network
 893     nonfree
 894     pic
 895     postproc
 896     rdft
 897     runtime_cpudetect
 898     shared
 899     small
 900     sram
 901     static
 902     swscale
 903     swscale_alpha
 904     vaapi
 905     vdpau
 906     version3
 907     x11grab
 908     zlib
 909 "
 910
 911 THREADS_LIST='
 912     pthreads
 913     w32threads
 914 '
 915
 916 ARCH_LIST='
 917     alpha
 918     arm
 919     avr32
 920     avr32_ap
 921     avr32_uc
 922     bfin
 923     ia64
 924     m68k
 925     mips
 926     mips64
 927     parisc
 928     ppc
 929     ppc64
 930     s390
 931     sh4
 932     sparc
 933     sparc64
 934     tomi
 935     x86
 936     x86_32
 937     x86_64
 938 '
 939
 940 ARCH_EXT_LIST='
 941     altivec
 942     amd3dnow
 943     amd3dnowext
 944     armv5te
 945     armv6
 946     armv6t2
 947     armvfp
 948     iwmmxt
 949     mmi
 950     mmx
 951     mmx2
 952     neon
 953     ppc4xx
 954     sse
 955     ssse3
 956     vis
 957 '
 958
 959 HAVE_LIST_PUB='
 960     bigendian
 961     fast_unaligned
 962 '
 963
 964 HAVE_LIST="
 965     $ARCH_EXT_LIST
 966     $HAVE_LIST_PUB
 967     $THREADS_LIST
 968     alsa_asoundlib_h
 969     altivec_h
 970     arpa_inet_h
 971     attribute_may_alias
 972     attribute_packed
 973     bswap
 974     closesocket
 975     cmov
 976     conio_h
 977     dcbzl
 978     dev_bktr_ioctl_bt848_h
 979     dev_bktr_ioctl_meteor_h
 980     dev_ic_bt8xx_h
 981     dev_video_meteor_ioctl_meteor_h
 982     dev_video_bktr_ioctl_bt848_h
 983     dlfcn_h
 984     dlopen
 985     dos_paths
 986     ebp_available
 987     ebx_available
 988     exp2
 989     exp2f
 990     fast_64bit
 991     fast_clz
 992     fast_cmov
 993     fcntl
 994     fork
 995     getaddrinfo
 996     gethrtime
 997     GetProcessMemoryInfo
 998     GetProcessTimes
 999     getrusage
1000     gnu_as
1001     struct_rusage_ru_maxrss
1002     ibm_asm
1003     inet_aton
1004     inline_asm
1005     isatty
1006     ldbrx
1007     libdc1394_1
1008     libdc1394_2
1009     llrint
1010     llrintf
1011     local_aligned_16
1012     local_aligned_8
1013     log2
1014     log2f
1015     loongson
1016     lrint
1017     lrintf
1018     lzo1x_999_compress
1019     machine_ioctl_bt848_h
1020     machine_ioctl_meteor_h
1021     malloc_h
1022     memalign
1023     mkstemp
1024     pld
1025     posix_memalign
1026     round
1027     roundf
1028     sdl
1029     sdl_video_size
1030     setmode
1031     socklen_t
1032     soundcard_h
1033     poll_h
1034     setrlimit
1035     strerror_r
1036     struct_addrinfo
1037     struct_ipv6_mreq
1038     struct_sockaddr_in6
1039     struct_sockaddr_sa_len
1040     struct_sockaddr_storage
1041     symver
1042     symver_gnu_asm
1043     symver_asm_label
1044     sys_mman_h
1045     sys_resource_h
1046     sys_select_h
1047     sys_soundcard_h
1048     sys_videoio_h
1049     ten_operands
1050     termios_h
1051     threads
1052     truncf
1053     vfp_args
1054     VirtualAlloc
1055     winsock2_h
1056     xform_asm
1057     yasm
1058 "
1059
1060 # options emitted with CONFIG_ prefix but not available on command line
1061 CONFIG_EXTRA="
1062     avutil
1063     gplv3
1064     lgplv3
1065 "
1066
1067 CMDLINE_SELECT="
1068     $ARCH_EXT_LIST
1069     $CONFIG_LIST
1070     $THREADS_LIST
1071     asm
1072     cross_compile
1073     debug
1074     extra_warnings
1075     logging
1076     optimizations
1077     stripping
1078     yasm
1079 "
1080
1081 PATHS_LIST='
1082     bindir
1083     datadir
1084     incdir
1085     libdir
1086     mandir
1087     prefix
1088     shlibdir
1089 '
1090
1091 CMDLINE_SET="
1092     $PATHS_LIST
1093     ar
1094     arch
1095     as
1096     build_suffix
1097     cc
1098     cpu
1099     cross_prefix
1100     dep_cc
1101     extra_version
1102     host_cc
1103     host_cflags
1104     host_ldflags
1105     host_libs
1106     host_os
1107     ld
1108     logfile
1109     malloc_prefix
1110     nm
1111     samples
1112     source_path
1113     strip
1114     sysinclude
1115     sysroot
1116     target_exec
1117     target_os
1118     target_path
1119 "
1120
1121 CMDLINE_APPEND="
1122     extra_cflags
1123 "
1124
1125 # code dependency declarations
1126
1127 # architecture extensions
1128
1129 armv5te_deps="arm"
1130 armv6_deps="arm"
1131 armv6t2_deps="arm"
1132 armvfp_deps="arm"
1133 iwmmxt_deps="arm"
1134 neon_deps="arm"
1135
1136 mmi_deps="mips"
1137
1138 altivec_deps="ppc"
1139 ppc4xx_deps="ppc"
1140
1141 vis_deps="sparc"
1142
1143 x86_64_suggest="cmov fast_cmov"
1144 amd3dnow_deps="mmx"
1145 amd3dnowext_deps="amd3dnow"
1146 mmx_deps="x86"
1147 mmx2_deps="mmx"
1148 sse_deps="mmx"
1149 ssse3_deps="sse"
1150
1151 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1152 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1153 fast_unaligned_if_any="armv6 ppc x86"
1154
1155 need_memalign="altivec neon sse"
1156 inline_asm_deps="!tms470"
1157
1158 symver_if_any="symver_asm_label symver_gnu_asm"
1159
1160 # subsystems
1161 dct_select="rdft"
1162 mdct_select="fft"
1163 rdft_select="fft"
1164
1165 # decoders / encoders / hardware accelerators
1166 aac_decoder_select="mdct rdft"
1167 aac_encoder_select="mdct"
1168 ac3_decoder_select="mdct ac3_parser"
1169 alac_encoder_select="lpc"
1170 amrnb_decoder_select="lsp"
1171 atrac1_decoder_select="mdct"
1172 atrac3_decoder_select="mdct"
1173 binkaudio_dct_decoder_select="mdct rdft dct"
1174 binkaudio_rdft_decoder_select="mdct rdft"
1175 cavs_decoder_select="golomb"
1176 cook_decoder_select="mdct"
1177 cscd_decoder_suggest="zlib"
1178 dca_decoder_select="mdct"
1179 dnxhd_encoder_select="aandct"
1180 dxa_decoder_select="zlib"
1181 eac3_decoder_select="ac3_decoder"
1182 eamad_decoder_select="aandct"
1183 eatgq_decoder_select="aandct"
1184 eatqi_decoder_select="aandct"
1185 ffv1_decoder_select="golomb"
1186 flac_decoder_select="golomb"
1187 flac_encoder_select="golomb lpc"
1188 flashsv_decoder_select="zlib"
1189 flashsv_encoder_select="zlib"
1190 flv_decoder_select="h263_decoder"
1191 flv_encoder_select="h263_encoder"
1192 h261_encoder_select="aandct"
1193 h263_decoder_select="h263_parser"
1194 h263_encoder_select="aandct"
1195 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1196 h263i_decoder_select="h263_decoder"
1197 h263p_encoder_select="h263_encoder"
1198 h264_decoder_select="golomb h264dsp"
1199 h264_dxva2_hwaccel_deps="dxva2api_h"
1200 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1201 h264_vaapi_hwaccel_select="vaapi"
1202 h264_vdpau_decoder_select="vdpau h264_decoder"
1203 imc_decoder_select="fft mdct"
1204 jpegls_decoder_select="golomb"
1205 jpegls_encoder_select="golomb"
1206 ljpeg_encoder_select="aandct"
1207 loco_decoder_select="golomb"
1208 mjpeg_encoder_select="aandct"
1209 mlp_decoder_select="mlp_parser"
1210 mp1float_decoder_select="dct"
1211 mp2float_decoder_select="dct"
1212 mp3adufloat_decoder_select="dct"
1213 mp3float_decoder_select="dct"
1214 mp3on4float_decoder_select="dct"
1215 mpeg1video_encoder_select="aandct"
1216 mpeg2video_encoder_select="aandct"
1217 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1218 mpeg4_encoder_select="h263_encoder"
1219 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1220 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1221 mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1222 mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1223 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1224 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1225 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1226 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1227 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1228 msmpeg4v1_decoder_select="h263_decoder"
1229 msmpeg4v1_encoder_select="h263_encoder"
1230 msmpeg4v2_decoder_select="h263_decoder"
1231 msmpeg4v2_encoder_select="h263_encoder"
1232 msmpeg4v3_decoder_select="h263_decoder"
1233 msmpeg4v3_encoder_select="h263_encoder"
1234 nellymoser_decoder_select="mdct"
1235 nellymoser_encoder_select="mdct"
1236 png_decoder_select="zlib"
1237 png_encoder_select="zlib"
1238 qcelp_decoder_select="lsp"
1239 qdm2_decoder_select="mdct rdft"
1240 ra_144_encoder_select="lpc"
1241 rv10_decoder_select="h263_decoder"
1242 rv10_encoder_select="h263_encoder"
1243 rv20_decoder_select="h263_decoder"
1244 rv20_encoder_select="h263_encoder"
1245 rv30_decoder_select="golomb h264dsp"
1246 rv40_decoder_select="golomb h264dsp"
1247 shorten_decoder_select="golomb"
1248 sipr_decoder_select="lsp"
1249 snow_decoder_select="dwt"
1250 snow_encoder_select="aandct dwt"
1251 sonic_decoder_select="golomb"
1252 sonic_encoder_select="golomb"
1253 sonic_ls_encoder_select="golomb"
1254 svq1_encoder_select="aandct"
1255 svq3_decoder_select="golomb h264dsp"
1256 svq3_decoder_suggest="zlib"
1257 theora_decoder_select="vp3_decoder"
1258 tiff_decoder_suggest="zlib"
1259 tiff_encoder_suggest="zlib"
1260 truehd_decoder_select="mlp_decoder"
1261 tscc_decoder_select="zlib"
1262 twinvq_decoder_select="mdct lsp"
1263 vc1_decoder_select="h263_decoder"
1264 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1265 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1266 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1267 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1268 vorbis_decoder_select="mdct"
1269 vorbis_encoder_select="mdct"
1270 vp6a_decoder_select="vp6_decoder"
1271 vp6f_decoder_select="vp6_decoder"
1272 vp8_decoder_select="h264dsp"
1273 wmapro_decoder_select="mdct"
1274 wmav1_decoder_select="mdct"
1275 wmav1_encoder_select="mdct"
1276 wmav2_decoder_select="mdct"
1277 wmav2_encoder_select="mdct"
1278 wmavoice_decoder_select="lsp rdft dct mdct"
1279 wmv1_decoder_select="h263_decoder"
1280 wmv1_encoder_select="h263_encoder"
1281 wmv2_decoder_select="h263_decoder"
1282 wmv2_encoder_select="h263_encoder"
1283 wmv3_decoder_select="vc1_decoder"
1284 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1285 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1286 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1287 zlib_decoder_select="zlib"
1288 zlib_encoder_select="zlib"
1289 zmbv_decoder_select="zlib"
1290 zmbv_encoder_select="zlib"
1291
1292 vaapi_deps="va_va_h"
1293 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1294
1295 # parsers
1296 h264_parser_select="golomb h264dsp"
1297
1298 # external libraries
1299 libdirac_decoder_deps="libdirac !libschroedinger"
1300 libdirac_encoder_deps="libdirac"
1301 libfaac_encoder_deps="libfaac"
1302 libgsm_decoder_deps="libgsm"
1303 libgsm_encoder_deps="libgsm"
1304 libgsm_ms_decoder_deps="libgsm"
1305 libgsm_ms_encoder_deps="libgsm"
1306 libmp3lame_encoder_deps="libmp3lame"
1307 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1308 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1309 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1310 libopenjpeg_decoder_deps="libopenjpeg"
1311 libschroedinger_decoder_deps="libschroedinger"
1312 libschroedinger_encoder_deps="libschroedinger"
1313 libspeex_decoder_deps="libspeex"
1314 libtheora_encoder_deps="libtheora"
1315 libvorbis_encoder_deps="libvorbis"
1316 libvpx_decoder_deps="libvpx"
1317 libvpx_encoder_deps="libvpx"
1318 libx264_encoder_deps="libx264"
1319 libxvid_encoder_deps="libxvid"
1320
1321 # demuxers / muxers
1322 ac3_demuxer_deps="ac3_parser"
1323 asf_stream_muxer_select="asf_muxer"
1324 avisynth_demuxer_deps="avisynth"
1325 dirac_demuxer_deps="dirac_parser"
1326 eac3_demuxer_select="ac3_parser"
1327 ipod_muxer_select="mov_muxer"
1328 libnut_demuxer_deps="libnut"
1329 libnut_muxer_deps="libnut"
1330 matroska_audio_muxer_select="matroska_muxer"
1331 matroska_demuxer_suggest="zlib bzlib"
1332 mov_demuxer_suggest="zlib"
1333 mp3_demuxer_deps="mpegaudio_parser"
1334 mp4_muxer_select="mov_muxer"
1335 mpegtsraw_demuxer_select="mpegts_demuxer"
1336 mxf_d10_muxer_select="mxf_muxer"
1337 ogg_demuxer_select="golomb"
1338 psp_muxer_select="mov_muxer"
1339 rtsp_demuxer_deps="sdp_demuxer"
1340 rtsp_muxer_deps="sdp_demuxer"
1341 rtsp_muxer_select="rtp_muxer"
1342 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1343 sdp_demuxer_select="asf_demuxer rm_demuxer"
1344 spdif_muxer_select="aac_parser"
1345 tg2_muxer_select="mov_muxer"
1346 tgp_muxer_select="mov_muxer"
1347 w64_demuxer_deps="wav_demuxer"
1348
1349 # indevs / outdevs
1350 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1351 alsa_indev_extralibs="-lasound"
1352 alsa_outdev_deps="alsa_asoundlib_h"
1353 alsa_outdev_extralibs="-lasound"
1354 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1355 dv1394_indev_deps="dv1394 dv_demuxer"
1356 jack_indev_deps="jack_jack_h"
1357 jack_indev_extralibs="-ljack"
1358 libdc1394_indev_deps="libdc1394"
1359 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1360 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1361 v4l_indev_deps="linux_videodev_h"
1362 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1363 vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1364 vfwcap_indev_extralibs="-lavicap32"
1365 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1366 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1367
1368 # protocols
1369 gopher_protocol_deps="network"
1370 http_protocol_deps="network"
1371 http_protocol_select="tcp_protocol"
1372 mmst_protocol_deps="network"
1373 rtmp_protocol_select="tcp_protocol"
1374 rtp_protocol_select="udp_protocol"
1375 tcp_protocol_deps="network"
1376 udp_protocol_deps="network"
1377
1378 # filters
1379 movie_filter_deps="avfilter_lavf"
1380 avfilter_lavf_deps="avformat"
1381
1382 # libraries
1383 avdevice_deps="avcodec avformat"
1384 avformat_deps="avcodec"
1385
1386 # programs
1387 ffmpeg_deps="avcodec avformat swscale"
1388 ffmpeg_select="buffer_filter"
1389 ffplay_deps="avcodec avformat swscale sdl"
1390 ffplay_select="rdft"
1391 ffprobe_deps="avcodec avformat"
1392 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1393 ffserver_extralibs='$ldl'
1394
1395 doc_deps="texi2html"
1396
1397 # tests
1398
1399 test_deps(){
1400     suf1=$1
1401     suf2=$2
1402     shift 2
1403     for v; do
1404         dep=${v%=*}
1405         tests=${v#*=}
1406         for name in ${tests}; do
1407             eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1408         done
1409     done
1410 }
1411
1412 test_deps _encoder _decoder                                             \
1413     ac3                                                                 \
1414     adpcm_g726=g726                                                     \
1415     adpcm_ima_qt                                                        \
1416     adpcm_ima_wav                                                       \
1417     adpcm_ms                                                            \
1418     adpcm_swf                                                           \
1419     adpcm_yamaha=adpcm_yam                                              \
1420     alac                                                                \
1421     asv1                                                                \
1422     asv2                                                                \
1423     bmp                                                                 \
1424     dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1425     dvvideo="dv dv50"                                                   \
1426     ffv1                                                                \
1427     flac                                                                \
1428     flashsv                                                             \
1429     flv                                                                 \
1430     gif                                                                 \
1431     h261                                                                \
1432     h263="h263 h263p"                                                   \
1433     huffyuv                                                             \
1434     jpegls                                                              \
1435     mjpeg="jpg mjpeg ljpeg"                                             \
1436     mp2                                                                 \
1437     mpeg1video="mpeg mpeg1b"                                            \
1438     mpeg2video="mpeg2 mpeg2thread"                                      \
1439     mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1440     msmpeg4v3=msmpeg4                                                   \
1441     msmpeg4v2                                                           \
1442     pbm=pbmpipe                                                         \
1443     pcx                                                                 \
1444     pgm="pgm pgmpipe"                                                   \
1445     ppm="ppm ppmpipe"                                                   \
1446     rawvideo="rgb yuv"                                                  \
1447     roq                                                                 \
1448     rv10                                                                \
1449     rv20                                                                \
1450     sgi                                                                 \
1451     snow="snow snowll"                                                  \
1452     svq1                                                                \
1453     targa=tga                                                           \
1454     tiff                                                                \
1455     wmav1                                                               \
1456     wmav2                                                               \
1457     wmv1                                                                \
1458     wmv2                                                                \
1459
1460 test_deps _muxer _demuxer                                               \
1461     aiff                                                                \
1462     pcm_alaw=alaw                                                       \
1463     asf                                                                 \
1464     au                                                                  \
1465     avi                                                                 \
1466     dv=dv_fmt                                                           \
1467     ffm                                                                 \
1468     flv=flv_fmt                                                         \
1469     gxf                                                                 \
1470     matroska=mkv                                                        \
1471     mmf                                                                 \
1472     mov                                                                 \
1473     pcm_mulaw=mulaw                                                     \
1474     mxf                                                                 \
1475     nut                                                                 \
1476     ogg                                                                 \
1477     rawvideo=pixfmt                                                     \
1478     rm                                                                  \
1479     swf                                                                 \
1480     mpegts=ts                                                           \
1481     voc                                                                 \
1482     wav                                                                 \
1483     yuv4mpegpipe=yuv4mpeg                                               \
1484
1485 mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1486
1487 # default parameters
1488
1489 logfile="config.log"
1490
1491 # installation paths
1492 prefix_default="/usr/local"
1493 bindir_default='${prefix}/bin'
1494 datadir_default='${prefix}/share/ffmpeg'
1495 incdir_default='${prefix}/include'
1496 libdir_default='${prefix}/lib'
1497 mandir_default='${prefix}/share/man'
1498 shlibdir_default="$libdir_default"
1499
1500 # toolchain
1501 ar_default="ar"
1502 cc_default="gcc"
1503 cc_version=\"unknown\"
1504 host_cc_default="gcc"
1505 ln_s="ln -sf"
1506 nm_default="nm"
1507 objformat="elf"
1508 ranlib="ranlib"
1509 strip_default="strip"
1510 yasmexe="yasm"
1511 nogas=":"
1512
1513 nm_opts='-g'
1514
1515 # machine
1516 arch_default=$(uname -m)
1517 cpu="generic"
1518
1519 # OS
1520 target_os_default=$(tolower $(uname -s))
1521 host_os=$target_os_default
1522
1523 # configurable options
1524 enable avcodec
1525 enable avdevice
1526 enable avfilter
1527 enable avformat
1528 enable avutil
1529 enable asm
1530 enable debug
1531 enable doc
1532 enable fastdiv
1533 enable ffmpeg
1534 enable ffplay
1535 enable ffprobe
1536 enable ffserver
1537 enable mpegaudio_hp
1538 enable network
1539 enable optimizations
1540 enable protocols
1541 enable static
1542 enable stripping
1543 enable swscale
1544 enable swscale_alpha
1545
1546 # build settings
1547 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1548 FFSERVERLDFLAGS=-Wl,-E
1549 LIBPREF="lib"
1550 LIBSUF=".a"
1551 FULLNAME='$(NAME)$(BUILDSUF)'
1552 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1553 SLIBPREF="lib"
1554 SLIBSUF=".so"
1555 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1556 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1557 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1558 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1559
1560 CC_O='-o $@'
1561
1562 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1563 host_libs='-lm'
1564
1565 target_path='$(CURDIR)'
1566
1567 # since the object filename is not given with the -MM flag, the compiler
1568 # is only able to print the basename, and we must add the path ourselves
1569 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1570 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1571
1572 # find source path
1573 source_path="$(dirname "$0")"
1574 enable source_path_used
1575 if test -f configure; then
1576     source_path="$(pwd)"
1577     disable source_path_used
1578 else
1579     source_path="$(cd "$source_path"; pwd)"
1580     echo "$source_path" | grep -q '[[:blank:]]' &&
1581         die "Out of tree builds are impossible with whitespace in source path."
1582     test -e "$source_path/config.h" &&
1583         die "Out of tree builds are impossible with config.h in source dir."
1584 fi
1585
1586 for v in "$@"; do
1587     r=${v#*=}
1588     l=${v%"$r"}
1589     r=$(sh_quote "$r")
1590     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1591 done
1592
1593 find_things(){
1594     thing=$1
1595     pattern=$2
1596     file=$source_path/$3
1597     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1598 }
1599
1600 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1601 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1602 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1603 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1604 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1605 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1606 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1607 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1608 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1609 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1610 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1611
1612 find_tests(){
1613     map 'echo ${v}_test' $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1614 }
1615
1616 ACODEC_TESTS=$(find_tests acodec)
1617 VCODEC_TESTS=$(find_tests vsynth1)
1618 LAVF_TESTS=$(find_tests lavf)
1619 LAVFI_TESTS=$(find_tests lavfi)
1620
1621 pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1622
1623 for n in $COMPONENT_LIST; do
1624     v=$(toupper ${n%s})_LIST
1625     eval enable \$$v
1626     eval ${n}_if_any="\$$v"
1627 done
1628
1629 enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS
1630
1631 die_unknown(){
1632     echo "Unknown option \"$1\"."
1633     echo "See $0 --help for available options."
1634     exit 1
1635 }
1636
1637 show_list() {
1638     suffix=_$1
1639     shift
1640     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1641     exit 0
1642 }
1643
1644 for opt do
1645     optval="${opt#*=}"
1646     case "$opt" in
1647     --extra-ldflags=*) add_ldflags $optval
1648     ;;
1649     --extra-libs=*) add_extralibs $optval
1650     ;;
1651     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1652     ;;
1653     --enable-debug=*) debuglevel="$optval"
1654     ;;
1655     --disable-everything)
1656     map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1657     ;;
1658     --enable-*=*|--disable-*=*)
1659     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1660     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1661     eval list=\$$(toupper $thing)_LIST
1662     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1663     $action $(filter "$name" $list)
1664     ;;
1665     --enable-?*|--disable-?*)
1666     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1667     if is_in $option $COMPONENT_LIST; then
1668         test $action = disable && action=unset
1669         eval $action \$$(toupper ${option%s})_LIST
1670     elif is_in $option $CMDLINE_SELECT; then
1671         $action $option
1672     else
1673         die_unknown $opt
1674     fi
1675     ;;
1676     --list-*)
1677         NAME="${opt#--list-}"
1678         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1679         NAME=${NAME%s}
1680         eval show_list $NAME \$$(toupper $NAME)_LIST
1681     ;;
1682     --help|-h) show_help
1683     ;;
1684     *)
1685     optname="${opt%%=*}"
1686     optname="${optname#--}"
1687     optname=$(echo "$optname" | sed 's/-/_/g')
1688     if is_in $optname $CMDLINE_SET; then
1689         eval $optname='$optval'
1690     elif is_in $optname $CMDLINE_APPEND; then
1691         append $optname "$optval"
1692     else
1693          die_unknown $opt
1694     fi
1695     ;;
1696     esac
1697 done
1698
1699 disabled logging && logfile=/dev/null
1700
1701 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1702 set >> $logfile
1703
1704 test -n "$cross_prefix" && enable cross_compile
1705
1706 if enabled cross_compile; then
1707     test -n "$arch" && test -n "$target_os" ||
1708         die "Must specify target arch and OS when cross-compiling"
1709 fi
1710
1711 set_default arch target_os
1712
1713 ar_default="${cross_prefix}${ar_default}"
1714 cc_default="${cross_prefix}${cc_default}"
1715 nm_default="${cross_prefix}${nm_default}"
1716 ranlib="${cross_prefix}${ranlib}"
1717 strip_default="${cross_prefix}${strip_default}"
1718
1719 sysinclude_default="${sysroot}/usr/include"
1720
1721 set_default cc nm strip sysinclude
1722 enabled cross_compile || host_cc_default=$cc
1723 set_default host_cc
1724
1725 exesuf() {
1726     case $1 in
1727         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1728     esac
1729 }
1730
1731 EXESUF=$(exesuf $target_os)
1732 HOSTEXESUF=$(exesuf $host_os)
1733
1734 # set temporary file name
1735 : ${TMPDIR:=$TEMPDIR}
1736 : ${TMPDIR:=$TMP}
1737 : ${TMPDIR:=/tmp}
1738
1739 if ! check_cmd type mktemp; then
1740     # simple replacement for missing mktemp
1741     # NOT SAFE FOR GENERAL USE
1742     mktemp(){
1743         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1744     }
1745 fi
1746
1747 tmpfile(){
1748     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1749         (set -C; exec > $tmp) 2>/dev/null ||
1750         die "Unable to create temporary file in $TMPDIR."
1751     append TMPFILES $tmp
1752     eval $1=$tmp
1753 }
1754
1755 trap 'rm -f -- $TMPFILES' EXIT
1756 trap exit HUP INT TERM
1757
1758 tmpfile TMPC  .c
1759 tmpfile TMPE  $EXESUF
1760 tmpfile TMPH  .h
1761 tmpfile TMPO  .o
1762 tmpfile TMPS  .S
1763 tmpfile TMPV  .ver
1764 tmpfile TMPSH .sh
1765
1766 unset -f mktemp
1767
1768 # make sure we can execute files in $TMPDIR
1769 cat > $TMPSH 2>> $logfile <<EOF
1770 #! /bin/sh
1771 EOF
1772 chmod +x $TMPSH >> $logfile 2>&1
1773 if ! $TMPSH >> $logfile 2>&1; then
1774     cat <<EOF
1775 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1776 variable to another directory and make sure that it is not mounted noexec.
1777 EOF
1778     die "Sanity test failed."
1779 fi
1780
1781 filter_cflags=echo
1782 filter_cppflags=echo
1783 filter_asflags=echo
1784
1785 if   $cc -v 2>&1 | grep -qi ^gcc; then
1786     cc_type=gcc
1787     cc_version=__VERSION__
1788     if ! $cc -dumpversion | grep -q '^2\.'; then
1789         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1790         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1791     fi
1792     speed_cflags='-O3'
1793     size_cflags='-Os'
1794 elif $cc --version 2>/dev/null | grep -q Intel; then
1795     cc_type=icc
1796     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1797     CC_DEPFLAGS='-MMD'
1798     AS_DEPFLAGS='-MMD'
1799     speed_cflags='-O3'
1800     size_cflags='-Os'
1801     noopt_cflags='-O1'
1802 elif $cc -v 2>&1 | grep -q xlc; then
1803     cc_type=xlc
1804     cc_version="AV_STRINGIFY(__IBMC__)"
1805     speed_cflags='-O5'
1806     size_cflags='-O5 -qcompact'
1807 elif $cc -V 2>/dev/null | grep -q Compaq; then
1808     cc_type=ccc
1809     cc_version="AV_STRINGIFY(__DECC_VER)"
1810     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1811     debuglevel=3
1812     add_ldflags -Wl,-z,now # calls to libots crash without this
1813     speed_cflags='-fast'
1814     size_cflags='-O1'
1815 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1816     test -d "$sysroot" || die "No valid sysroot specified."
1817     cc_type=armcc
1818     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1819     armcc_conf="$PWD/armcc.conf"
1820     $cc --arm_linux_configure                 \
1821         --arm_linux_config_file="$armcc_conf" \
1822         --configure_sysroot="$sysroot"        \
1823         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1824         die "Error creating armcc configuration file."
1825     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1826     as_default="${cross_prefix}gcc"
1827     CC_DEPFLAGS='-MMD'
1828     AS_DEPFLAGS='-MMD'
1829     speed_cflags='-O3'
1830     size_cflags='-Os'
1831 elif $cc -version 2>/dev/null | grep -q TMS470; then
1832     cc_type=tms470
1833     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1834     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1835     CC_O='-fr=$(@D)'
1836     as_default="${cross_prefix}gcc"
1837     ld_default="${cross_prefix}gcc"
1838     TMPO=$(basename $TMPC .c).o
1839     append TMPFILES $TMPO
1840     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1841     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1842     AS_DEPFLAGS='-MMD'
1843     speed_cflags='-O3 -mf=5'
1844     size_cflags='-O3 -mf=2'
1845     filter_cflags=tms470_flags
1846     tms470_flags(){
1847         for flag; do
1848             case $flag in
1849                 -march=*|-mcpu=*)
1850                     case "${flag#*=}" in
1851                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1852                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1853                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1854                         armv6*|arm11*)          echo -mv=6   ;;
1855                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1856                                                 echo -mv=5e  ;;
1857                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1858                     esac
1859                     ;;
1860                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1861                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1862                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1863                 -msoft-float)   echo --float_support=vfplib       ;;
1864                 -O[0-3]|-mf=*)  echo $flag                        ;;
1865                 -g)             echo -g -mn                       ;;
1866                 -pds=*)         echo $flag                        ;;
1867             esac
1868         done
1869     }
1870 elif $cc -v 2>&1 | grep -q clang; then
1871     cc_type=clang
1872     $cc -dM -E $TMPC | grep -q __clang_version__ &&
1873         cc_version=__clang_version__ || cc_version=__VERSION__
1874     CC_DEPFLAGS='-MMD'
1875     AS_DEPFLAGS='-MMD'
1876     speed_cflags='-O3'
1877     size_cflags='-Os'
1878 elif $cc -V 2>&1 | grep -q Sun; then
1879     cc_type=suncc
1880     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1881     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1882     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1883     speed_cflags='-O5'
1884     size_cflags='-O5 -xspace'
1885     filter_cflags=suncc_flags
1886     suncc_flags(){
1887         for flag; do
1888             case $flag in
1889                 -march=*|-mcpu=*)
1890                     case "${flag#*=}" in
1891                         native)                   echo -xtarget=native       ;;
1892                         v9|niagara)               echo -xarch=sparc          ;;
1893                         ultrasparc)               echo -xarch=sparcvis       ;;
1894                         ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
1895                         i586|pentium)             echo -xchip=pentium        ;;
1896                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1897                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1898                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1899                         pentium4*)          echo -xtarget=pentium4           ;;
1900                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1901                         *-sse3)             echo -xarch=sse3                 ;;
1902                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1903                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1904                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1905                         k8|opteron|athlon64|athlon-fx)
1906                                                   echo -xarch=sse2a          ;;
1907                         athlon*)                  echo -xarch=pentium_proa   ;;
1908                     esac
1909                     ;;
1910                 -std=c99)             echo -xc99              ;;
1911                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1912                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1913                 -W*,*)                echo $flag              ;;
1914                 -f*-*|-W*)                                    ;;
1915                 *)                    echo $flag              ;;
1916             esac
1917         done
1918     }
1919 fi
1920
1921 test -n "$cc_type" && enable $cc_type ||
1922     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
1923
1924 : ${as_default:=$cc}
1925 : ${dep_cc_default:=$cc}
1926 : ${ld_default:=$cc}
1927 set_default ar as dep_cc ld
1928
1929 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1930 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1931
1932 add_cflags $extra_cflags
1933 add_asflags $extra_cflags
1934
1935 if test -n "$sysroot"; then
1936     case "$cc_type" in
1937         gcc)
1938             add_cppflags --sysroot="$sysroot"
1939             add_ldflags --sysroot="$sysroot"
1940         ;;
1941         tms470)
1942             add_cppflags -I"$sysinclude"
1943             add_ldflags  --sysroot="$sysroot"
1944         ;;
1945         clang)
1946             add_cppflags -isysroot "$sysroot"
1947             add_ldflags -isysroot "$sysroot"
1948         ;;
1949     esac
1950 fi
1951
1952 if test "$cpu" = host; then
1953     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1954
1955     case "$cc_type" in
1956         gcc)
1957             check_native(){
1958                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1959                 sed -n "/$1=/{
1960                             s/.*$1=\\([^ ]*\\).*/\\1/
1961                             p
1962                             q
1963                         }" $TMPE
1964             }
1965             cpu=$(check_native -march || check_native -mcpu)
1966         ;;
1967     esac
1968
1969     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1970 fi
1971
1972 # Deal with common $arch aliases
1973 case "$arch" in
1974     arm*)
1975         arch="arm"
1976     ;;
1977     mips|mipsel|IP*)
1978         arch="mips"
1979     ;;
1980     mips64*)
1981         arch="mips"
1982         subarch="mips64"
1983     ;;
1984     parisc|hppa)
1985         arch="parisc"
1986     ;;
1987     parisc64|hppa64)
1988         arch="parisc"
1989         subarch="parisc64"
1990     ;;
1991     "Power Macintosh"|ppc|powerpc)
1992         arch="ppc"
1993     ;;
1994     ppc64|powerpc64)
1995         arch="ppc"
1996         subarch="ppc64"
1997     ;;
1998     s390|s390x)
1999         arch="s390"
2000     ;;
2001     sh4|sh)
2002         arch="sh4"
2003     ;;
2004     sun4u|sparc64)
2005         arch="sparc"
2006         subarch="sparc64"
2007     ;;
2008     i[3-6]86|i86pc|BePC|x86_64|amd64)
2009         arch="x86"
2010     ;;
2011 esac
2012
2013 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2014 enable $arch
2015
2016 # Add processor-specific flags
2017 if test "$cpu" = generic; then
2018     : do nothing
2019 elif enabled ppc; then
2020
2021     case $(tolower $cpu) in
2022         601|ppc601|powerpc601)
2023             cpuflags="-mcpu=601"
2024             disable altivec
2025         ;;
2026         603*|ppc603*|powerpc603*)
2027             cpuflags="-mcpu=603"
2028             disable altivec
2029         ;;
2030         604*|ppc604*|powerpc604*)
2031             cpuflags="-mcpu=604"
2032             disable altivec
2033         ;;
2034         g3|75*|ppc75*|powerpc75*)
2035             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2036             disable altivec
2037         ;;
2038         g4|745*|ppc745*|powerpc745*)
2039             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2040         ;;
2041         74*|ppc74*|powerpc74*)
2042             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2043         ;;
2044         g5|970|ppc970|powerpc970|power4*)
2045             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2046         ;;
2047         cell)
2048             cpuflags="-mcpu=cell"
2049             enable ldbrx
2050         ;;
2051         e500v2)
2052             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2053             disable altivec
2054         ;;
2055         e500)
2056             cpuflags="-mcpu=8540 -mhard-float"
2057             disable altivec
2058         ;;
2059     esac
2060
2061 elif enabled x86; then
2062
2063     case $cpu in
2064         i[345]86|pentium)
2065             cpuflags="-march=$cpu"
2066             disable mmx
2067         ;;
2068         # targets that do NOT support conditional mov (cmov)
2069         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2070             cpuflags="-march=$cpu"
2071             disable cmov
2072         ;;
2073         # targets that do support conditional mov (cmov)
2074         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
2075             cpuflags="-march=$cpu"
2076             enable cmov
2077             enable fast_cmov
2078         ;;
2079         # targets that do support conditional mov but on which it's slow
2080         pentium4|pentium4m|prescott|nocona)
2081             cpuflags="-march=$cpu"
2082             enable cmov
2083             disable fast_cmov
2084         ;;
2085     esac
2086
2087 elif enabled sparc; then
2088
2089     case $cpu in
2090         niagara)
2091             cpuflags="-mcpu=$cpu"
2092             disable vis
2093         ;;
2094         sparc64)
2095             cpuflags="-mcpu=v9"
2096         ;;
2097     esac
2098
2099 elif enabled arm; then
2100
2101     case $cpu in
2102         armv*)
2103             cpuflags="-march=$cpu"
2104         ;;
2105         *)
2106             cpuflags="-mcpu=$cpu"
2107         ;;
2108     esac
2109
2110 elif enabled alpha; then
2111
2112     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2113
2114 elif enabled bfin; then
2115
2116     cpuflags="-mcpu=$cpu"
2117
2118 elif enabled mips; then
2119
2120     cpuflags="-march=$cpu"
2121
2122 elif enabled avr32; then
2123
2124     case $cpu in
2125         ap7[02]0[0-2])
2126             subarch="avr32_ap"
2127             cpuflags="-mpart=$cpu"
2128         ;;
2129         ap)
2130             subarch="avr32_ap"
2131             cpuflags="-march=$cpu"
2132         ;;
2133         uc3[ab]*)
2134             subarch="avr32_uc"
2135             cpuflags="-mcpu=$cpu"
2136         ;;
2137         uc)
2138             subarch="avr32_uc"
2139             cpuflags="-march=$cpu"
2140         ;;
2141     esac
2142
2143 fi
2144
2145 add_cflags $cpuflags
2146 add_asflags $cpuflags
2147
2148 # compiler sanity check
2149 check_exec <<EOF
2150 int main(void){ return 0; }
2151 EOF
2152 if test "$?" != 0; then
2153     echo "$cc is unable to create an executable file."
2154     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2155         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2156         echo "Only do this if you know what cross compiling means."
2157     fi
2158     die "C compiler test failed."
2159 fi
2160
2161 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2162 check_cflags -std=c99
2163 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2164 #include <stdlib.h>
2165 EOF
2166 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2167 #include <stdlib.h>
2168 EOF
2169
2170 check_host_cflags -std=c99
2171
2172 case "$arch" in
2173     alpha|ia64|mips|parisc|sparc)
2174         spic=$shared
2175     ;;
2176     x86)
2177         subarch="x86_32"
2178         check_cc <<EOF && subarch="x86_64"
2179         int test[(int)sizeof(char*) - 7];
2180 EOF
2181         if test "$subarch" = "x86_64"; then
2182             spic=$shared
2183         fi
2184     ;;
2185 esac
2186
2187 enable $subarch
2188 enabled spic && enable pic
2189
2190 # OS specific
2191 case $target_os in
2192     haiku)
2193         prefix_default="/boot/common"
2194         network_extralibs="-lnetwork"
2195         ;;
2196     sunos)
2197         FFSERVERLDFLAGS=""
2198         SHFLAGS='-shared -Wl,-h,$$(@F)'
2199         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2200         network_extralibs="-lsocket -lnsl"
2201         add_cppflags -D__EXTENSIONS__
2202         nm_opts='-P -g'
2203         ;;
2204     netbsd)
2205         oss_indev_extralibs="-lossaudio"
2206         oss_outdev_extralibs="-lossaudio"
2207         add_cppflags -D_XOPEN_SOURCE=600
2208         ;;
2209     openbsd)
2210         enable malloc_aligned
2211         # On OpenBSD 4.5. the compiler does not use PIC unless
2212         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2213         # however the generated executable will not do anything
2214         # (simply quits with exit-code 1, no crash, no output).
2215         # Thus explicitly enable PIC here.
2216         enable pic
2217         SHFLAGS='-shared'
2218         oss_indev_extralibs="-lossaudio"
2219         oss_outdev_extralibs="-lossaudio"
2220         ;;
2221     freebsd|dragonfly)
2222         enable malloc_aligned
2223         ;;
2224     bsd/os)
2225         add_extralibs -lpoll -lgnugetopt
2226         strip="strip -d"
2227         ;;
2228     darwin)
2229         enable malloc_aligned
2230         gas="gas-preprocessor.pl $cc"
2231         enabled ppc && add_asflags -force_cpusubtype_ALL
2232         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2233         strip="${strip} -x"
2234         add_ldflags -Wl,-dynamic,-search_paths_first
2235         SLIBSUF=".dylib"
2236         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2237         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2238         FFSERVERLDFLAGS=-Wl,-bind_at_load
2239         objformat="macho"
2240         enabled x86_64 && objformat="macho64"
2241         enabled_any pic shared ||
2242             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2243         ;;
2244     mingw32*)
2245         if test $target_os = "mingw32ce"; then
2246             disable network
2247         else
2248             target_os=mingw32
2249         fi
2250         LIBTARGET=i386
2251         if enabled x86_64; then
2252             enable malloc_aligned
2253             LIBTARGET=x64
2254         elif enabled arm; then
2255             LIBTARGET=arm
2256         fi
2257         shlibdir_default="$bindir_default"
2258         disable ffserver
2259         SLIBPREF=""
2260         SLIBSUF=".dll"
2261         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2262         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2263         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2264         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2265             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2266             install -d "$(LIBDIR)"; \
2267             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2268         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2269         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2270         objformat="win32"
2271         enable dos_paths
2272         check_cflags -fno-common
2273         check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2274                                       || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2275                 die "ERROR: MinGW runtime version must be >= 3.15."
2276         ;;
2277     cygwin*)
2278         target_os=cygwin
2279         shlibdir_default="$bindir_default"
2280         SLIBPREF="cyg"
2281         SLIBSUF=".dll"
2282         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2283         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2284         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2285         objformat="win32"
2286         enable dos_paths
2287         check_cflags -fno-common
2288         ;;
2289     *-dos|freedos|opendos)
2290         disable ffplay ffserver
2291         disable $INDEV_LIST $OUTDEV_LIST
2292         network_extralibs="-lsocket"
2293         objformat="coff"
2294         enable dos_paths
2295         ;;
2296     linux)
2297         enable dv1394
2298         ;;
2299     irix*)
2300         target_os=irix
2301         ranlib="echo ignoring ranlib"
2302         ;;
2303     os/2*)
2304         strip="lxlite"
2305         ln_s="cp -f"
2306         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2307         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2308         FFSERVERLDFLAGS=""
2309         LIBSUF="_s.a"
2310         SLIBPREF=""
2311         SLIBSUF=".dll"
2312         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2313         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2314         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2315           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2316           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2317           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2318           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2319           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2320         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2321           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2322         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2323         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2324         enable dos_paths
2325         ;;
2326     gnu/kfreebsd)
2327         ;;
2328     gnu)
2329         ;;
2330     none)
2331         ;;
2332     *)
2333         die "Unknown OS '$target_os'."
2334         ;;
2335 esac
2336
2337 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2338
2339 set_default $PATHS_LIST
2340
2341 # we need to build at least one lib type
2342 if ! enabled_any static shared; then
2343     cat <<EOF
2344 At least one library type must be built.
2345 Specify --enable-static to build the static libraries or --enable-shared to
2346 build the shared libraries as well. To only build the shared libraries specify
2347 --disable-static in addition to --enable-shared.
2348 EOF
2349     exit 1;
2350 fi
2351
2352 disabled static && LIBNAME=""
2353
2354 die_license_disabled() {
2355     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2356 }
2357
2358 die_license_disabled gpl libx264
2359 die_license_disabled gpl libxvid
2360 die_license_disabled gpl postproc
2361 die_license_disabled gpl x11grab
2362
2363 die_license_disabled nonfree libfaac
2364
2365 die_license_disabled version3 libopencore_amrnb
2366 die_license_disabled version3 libopencore_amrwb
2367
2368 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2369
2370 check_deps $ARCH_EXT_LIST
2371
2372 disabled optimizations || check_cflags -fomit-frame-pointer
2373
2374 enable_pic() {
2375     enable pic
2376     add_cppflags -DPIC
2377     add_cflags   -fPIC
2378     add_asflags  -fPIC
2379 }
2380
2381 enabled pic && enable_pic
2382
2383 check_cc <<EOF || die "Symbol mangling check failed."
2384 int ff_extern;
2385 EOF
2386 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2387 extern_prefix=${sym%%ff_extern*}
2388
2389 check_cc <<EOF && enable inline_asm
2390 void foo(void) { __asm__ volatile ("" ::); }
2391 EOF
2392
2393 _restrict=
2394 for restrict_keyword in restrict __restrict__ __restrict; do
2395     check_cc <<EOF && _restrict=$restrict_keyword && break
2396 void foo(char * $restrict_keyword p);
2397 EOF
2398 done
2399
2400 check_cc <<EOF && enable attribute_packed
2401 struct { int x; } __attribute__((packed)) x;
2402 EOF
2403
2404 check_cc <<EOF && enable attribute_may_alias
2405 union { int x; } __attribute__((may_alias)) x;
2406 EOF
2407
2408 check_cc <<EOF || die "endian test failed"
2409 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2410 EOF
2411 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2412
2413 if enabled alpha; then
2414
2415     check_cflags -mieee
2416
2417 elif enabled arm; then
2418
2419     check_cflags -marm
2420     nogas=die
2421
2422     check_ld <<EOF && enable vfp_args
2423 __asm__ (".eabi_attribute 28, 1");
2424 int main(void) { return 0; }
2425 EOF
2426
2427     # We have to check if pld is a nop and disable it.
2428     check_asm pld '"pld [r0]"'
2429
2430     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2431     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2432     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2433     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2434     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2435     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2436
2437     enabled_all armv6t2 shared !pic && enable_pic
2438
2439 elif enabled mips; then
2440
2441     check_asm loongson '"dmult.g $1, $2, $3"'
2442     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2443
2444 elif enabled ppc; then
2445
2446     enable local_aligned_8 local_aligned_16
2447
2448     check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2449     check_asm ibm_asm   '"add 0, 0, 0"'
2450     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2451     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2452
2453     # AltiVec flags: The FSF version of GCC differs from the Apple version
2454     if enabled altivec; then
2455         nogas=warn
2456         check_cflags -maltivec -mabi=altivec &&
2457         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2458         check_cflags -faltivec
2459
2460         # check if our compiler supports Motorola AltiVec C API
2461         check_cc <<EOF || disable altivec
2462 $inc_altivec_h
2463 int main(void) {
2464     vector signed int v1, v2, v3;
2465     v1 = vec_add(v2,v3);
2466     return 0;
2467 }
2468 EOF
2469
2470         # check if our compiler supports braces for vector declarations
2471         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2472 $inc_altivec_h
2473 int main (void) { (vector int) {1}; return 0; }
2474 EOF
2475     fi
2476
2477 elif enabled sparc; then
2478
2479     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2480         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2481
2482 elif enabled x86; then
2483
2484     enable local_aligned_8 local_aligned_16
2485
2486     # check whether EBP is available on x86
2487     # As 'i' is stored on the stack, this program will crash
2488     # if the base pointer is used to access it because the
2489     # base pointer is cleared in the inline assembly code.
2490     check_exec_crash <<EOF && enable ebp_available
2491     volatile int i=0;
2492     __asm__ volatile (
2493         "xorl %%ebp, %%ebp"
2494     ::: "%ebp");
2495     return i;
2496 EOF
2497
2498     # check whether EBX is available on x86
2499     check_asm ebx_available '""::"b"(0)' &&
2500         check_asm ebx_available '"":::"%ebx"'
2501
2502     # check whether more than 10 operands are supported
2503     check_cc <<EOF && enable ten_operands
2504 int main(void) {
2505     int x=0;
2506     __asm__ volatile(
2507         ""
2508         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2509     );
2510     return 0;
2511 }
2512 EOF
2513
2514     # check whether binutils is new enough to compile SSSE3/MMX2
2515     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2516     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2517
2518     check_asm bswap '"bswap %%eax" ::: "%eax"'
2519
2520     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2521     enabled     x86_64        && append YASMFLAGS "-m amd64"
2522     enabled     pic           && append YASMFLAGS "-DPIC"
2523     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2524     case "$objformat" in
2525         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2526     esac
2527     if ! disabled yasm; then
2528         check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2529             warn "yasm not found, performance will suffer"
2530     fi
2531
2532     case "$cpu" in
2533         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2534             disable fast_clz
2535         ;;
2536     esac
2537
2538 fi
2539
2540 if enabled asm; then
2541     as=${gas:=$as}
2542     check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2543         $nogas "GNU assembler not found, install gas-preprocessor"
2544 fi
2545
2546 if check_func dlopen; then
2547     ldl=
2548 elif check_func dlopen -ldl; then
2549     ldl=-ldl
2550 fi
2551
2552 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2553 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2554
2555 check_func  fcntl
2556 check_func  fork
2557 check_func  getaddrinfo $network_extralibs
2558 check_func  gethrtime
2559 check_func  getrusage
2560 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2561 check_func  inet_aton $network_extralibs
2562 check_func  isatty
2563 check_func  ${malloc_prefix}memalign            && enable memalign
2564 check_func  mkstemp
2565 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2566 check_func  setrlimit
2567 check_func  strerror_r
2568 check_func_headers io.h setmode
2569 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2570 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2571 check_func_headers windows.h GetProcessTimes
2572 check_func_headers windows.h VirtualAlloc
2573
2574 check_header conio.h
2575 check_header dlfcn.h
2576 check_header dxva2api.h
2577 check_header malloc.h
2578 check_header poll.h
2579 check_header sys/mman.h
2580 check_header sys/resource.h
2581 check_header sys/select.h
2582 check_header termios.h
2583 check_header vdpau/vdpau.h
2584 check_header vdpau/vdpau_x11.h
2585 check_header X11/extensions/XvMClib.h
2586
2587 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2588
2589 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2590      enabled_any $need_memalign ; then
2591     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2592 fi
2593
2594 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2595 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2596
2597 # check for some common methods of building with pthread support
2598 # do this before the optional library checks as some of them require pthreads
2599 if ! disabled pthreads && ! enabled w32threads; then
2600     enable pthreads
2601     if check_func pthread_create; then
2602         :
2603     elif check_func pthread_create -pthread; then
2604         add_cflags -pthread
2605         add_extralibs -pthread
2606     elif check_func pthread_create -pthreads; then
2607         add_cflags -pthreads
2608         add_extralibs -pthreads
2609     elif check_func pthread_create -lpthreadGC2; then
2610         add_extralibs -lpthreadGC2
2611     elif ! check_lib pthread.h pthread_create -lpthread; then
2612         disable pthreads
2613     fi
2614 fi
2615
2616 for thread in $THREADS_LIST; do
2617     if enabled $thread; then
2618         test -n "$thread_type" &&
2619             die "ERROR: Only one thread type must be selected." ||
2620             thread_type="$thread"
2621     fi
2622 done
2623
2624 check_lib math.h sin -lm
2625 disabled vaapi || check_lib va/va.h vaInitialize -lva
2626
2627 check_mathfunc exp2
2628 check_mathfunc exp2f
2629 check_mathfunc llrint
2630 check_mathfunc llrintf
2631 check_mathfunc log2
2632 check_mathfunc log2f
2633 check_mathfunc lrint
2634 check_mathfunc lrintf
2635 check_mathfunc round
2636 check_mathfunc roundf
2637 check_mathfunc truncf
2638
2639 # these are off by default, so fail if requested and not available
2640 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2641 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2642                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2643                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2644 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2645 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2646 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame
2647 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2648 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2649 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2650 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2651 enabled librtmp    && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2652                         die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
2653 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2654                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2655 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2656 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2657 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2658 enabled libvpx     && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2659                         check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2660                       die "ERROR: libvpx version must be >=0.9.1"; }
2661 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2662                       { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2663                         die "ERROR: libx264 version must be >= 0.98."; }
2664 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2665 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2666
2667 # libdc1394 check
2668 if enabled libdc1394; then
2669     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2670         enable libdc1394_2; } ||
2671     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2672         enable libdc1394_1; } ||
2673     die "ERROR: No version of libdc1394 found "
2674 fi
2675
2676 SDL_CONFIG="${cross_prefix}sdl-config"
2677 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2678     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2679     sdl_libs=$("${SDL_CONFIG}" --libs)
2680     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2681     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2682     enable sdl &&
2683     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2684 fi
2685
2686 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2687
2688 if enabled network; then
2689     check_type "sys/types.h sys/socket.h" socklen_t
2690     check_type netdb.h "struct addrinfo"
2691     check_type netinet/in.h "struct ipv6_mreq"
2692     check_type netinet/in.h "struct sockaddr_in6"
2693     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2694     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2695     # Prefer arpa/inet.h over winsock2
2696     if check_header arpa/inet.h ; then
2697         check_func closesocket
2698     elif check_header winsock2.h ; then
2699         check_func_headers winsock2.h closesocket -lws2 && \
2700             network_extralibs="-lws2" || \
2701         { check_func_headers winsock2.h closesocket -lws2_32 && \
2702             network_extralibs="-lws2_32"; }
2703         check_type ws2tcpip.h socklen_t
2704         check_type ws2tcpip.h "struct addrinfo"
2705         check_type ws2tcpip.h "struct ipv6_mreq"
2706         check_type ws2tcpip.h "struct sockaddr_in6"
2707         check_type ws2tcpip.h "struct sockaddr_storage"
2708         check_struct winsock2.h "struct sockaddr" sa_len
2709     else
2710         disable network
2711     fi
2712 fi
2713
2714 check_header linux/videodev.h
2715 check_header linux/videodev2.h
2716 check_header sys/videoio.h
2717
2718 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2719 # check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2720 # w32api 3.12 had it defined wrong
2721 check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2722
2723 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2724 { check_header dev/bktr/ioctl_meteor.h &&
2725   check_header dev/bktr/ioctl_bt848.h; } ||
2726 { check_header machine/ioctl_meteor.h &&
2727   check_header machine/ioctl_bt848.h; } ||
2728 { check_header dev/video/meteor/ioctl_meteor.h &&
2729   check_header dev/video/bktr/ioctl_bt848.h; } ||
2730 check_header dev/ic/bt8xx.h
2731
2732 check_header sys/soundcard.h
2733 check_header soundcard.h
2734
2735 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2736
2737 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2738
2739 enabled x11grab                         &&
2740 check_header X11/Xlib.h                 &&
2741 check_header X11/extensions/XShm.h      &&
2742 check_header X11/extensions/Xfixes.h    &&
2743 check_func XOpenDisplay -lX11           &&
2744 check_func XShmCreateImage -lX11 -lXext &&
2745 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2746
2747 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2748 check_cpp_condition \
2749     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2750     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2751       disable vdpau; }
2752 fi
2753
2754 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2755
2756 # add some useful compiler flags if supported
2757 check_cflags -Wdeclaration-after-statement
2758 check_cflags -Wall
2759 check_cflags -Wno-switch
2760 check_cflags -Wdisabled-optimization
2761 check_cflags -Wpointer-arith
2762 check_cflags -Wredundant-decls
2763 check_cflags -Wno-pointer-sign
2764 check_cflags -Wcast-qual
2765 check_cflags -Wwrite-strings
2766 check_cflags -Wtype-limits
2767 check_cflags -Wundef
2768 check_cflags -Wmissing-prototypes
2769 enabled extra_warnings && check_cflags -Winline
2770
2771 # add some linker flags
2772 check_ldflags -Wl,--warn-common
2773 check_ldflags -Wl,--as-needed
2774 check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2775 check_ldflags -Wl,-Bsymbolic
2776
2777 echo "X{};" > $TMPV
2778 if test_ldflags -Wl,--version-script,$TMPV; then
2779     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2780     check_cc <<EOF && enable symver_asm_label
2781 void ff_foo(void) __asm__ ("av_foo@VERSION");
2782 void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2783 EOF
2784     check_cc <<EOF && enable symver_gnu_asm
2785 __asm__(".symver ff_foo,av_foo@VERSION");
2786 void ff_foo(void) {}
2787 EOF
2788 fi
2789
2790 if enabled small; then
2791     add_cflags $size_cflags
2792     optimizations="small"
2793 elif enabled optimizations; then
2794     add_cflags $speed_cflags
2795 else
2796     add_cflags $noopt_cflags
2797 fi
2798 check_cflags -fno-math-errno
2799 check_cflags -fno-signed-zeros
2800
2801 if enabled icc; then
2802     # Just warnings, no remarks
2803     check_cflags -w1
2804     # -wd: Disable following warnings
2805     # 144, 167, 556: -Wno-pointer-sign
2806     # 10006: ignoring unknown option -fno-signed-zeros
2807     # 10156: ignoring option '-W'; no argument required
2808     check_cflags -wd144,167,556,10006,10156
2809     # 11030: Warning unknown option --as-needed
2810     # 10156: ignoring option '-export'; no argument required
2811     check_ldflags -wd10156,11030
2812     # Allow to compile with optimizations
2813     check_ldflags -march=$cpu
2814     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2815     enable ebp_available
2816 elif enabled ccc; then
2817     # disable some annoying warnings
2818     add_cflags -msg_disable cvtu32to64
2819     add_cflags -msg_disable embedcomment
2820     add_cflags -msg_disable needconstext
2821     add_cflags -msg_disable nomainieee
2822     add_cflags -msg_disable ptrmismatch1
2823     add_cflags -msg_disable unreachcode
2824 elif enabled gcc; then
2825     check_cflags -fno-tree-vectorize
2826     check_cflags -Werror=implicit-function-declaration
2827     check_cflags -Werror=missing-prototypes
2828 elif enabled clang; then
2829     check_cflags -Qunused-arguments
2830 elif enabled armcc; then
2831     # 2523: use of inline assembler is deprecated
2832     add_cflags -Wrvct,--diag_suppress=2523
2833     add_cflags -Wrvct,--diag_suppress=1207
2834 elif enabled tms470; then
2835     add_cflags -pds=824 -pds=837
2836 fi
2837
2838 enabled_any $THREADS_LIST      && enable threads
2839
2840 check_deps $CONFIG_LIST       \
2841            $CONFIG_EXTRA      \
2842            $HAVE_LIST         \
2843            $DECODER_LIST      \
2844            $ENCODER_LIST      \
2845            $HWACCEL_LIST      \
2846            $PARSER_LIST       \
2847            $BSF_LIST          \
2848            $DEMUXER_LIST      \
2849            $MUXER_LIST        \
2850            $FILTER_LIST       \
2851            $INDEV_LIST        \
2852            $OUTDEV_LIST       \
2853            $PROTOCOL_LIST     \
2854            $ACODEC_TESTS      \
2855            $VCODEC_TESTS      \
2856            $LAVF_TESTS        \
2857            $LAVFI_TESTS       \
2858
2859 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2860
2861 echo "install prefix            $prefix"
2862 echo "source path               $source_path"
2863 echo "C compiler                $cc"
2864 echo "ARCH                      $arch ($cpu)"
2865 if test "$build_suffix" != ""; then
2866     echo "build suffix              $build_suffix"
2867 fi
2868 if test "$extra_version" != ""; then
2869     echo "version string suffix     $extra_version"
2870 fi
2871 echo "big-endian                ${bigendian-no}"
2872 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2873 if enabled x86; then
2874     echo "yasm                      ${yasm-no}"
2875     echo "MMX enabled               ${mmx-no}"
2876     echo "MMX2 enabled              ${mmx2-no}"
2877     echo "3DNow! enabled            ${amd3dnow-no}"
2878     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2879     echo "SSE enabled               ${sse-no}"
2880     echo "SSSE3 enabled             ${ssse3-no}"
2881     echo "CMOV enabled              ${cmov-no}"
2882     echo "CMOV is fast              ${fast_cmov-no}"
2883     echo "EBX available             ${ebx_available-no}"
2884     echo "EBP available             ${ebp_available-no}"
2885     echo "10 operands supported     ${ten_operands-no}"
2886 fi
2887 if enabled arm; then
2888     echo "ARMv5TE enabled           ${armv5te-no}"
2889     echo "ARMv6 enabled             ${armv6-no}"
2890     echo "ARMv6T2 enabled           ${armv6t2-no}"
2891     echo "ARM VFP enabled           ${armvfp-no}"
2892     echo "IWMMXT enabled            ${iwmmxt-no}"
2893     echo "NEON enabled              ${neon-no}"
2894 fi
2895 if enabled mips; then
2896     echo "MMI enabled               ${mmi-no}"
2897 fi
2898 if enabled ppc; then
2899     echo "AltiVec enabled           ${altivec-no}"
2900     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2901     echo "dcbzl available           ${dcbzl-no}"
2902 fi
2903 if enabled sparc; then
2904     echo "VIS enabled               ${vis-no}"
2905 fi
2906 echo "debug symbols             ${debug-no}"
2907 echo "strip symbols             ${stripping-no}"
2908 echo "optimizations             ${optimizations-no}"
2909 echo "static                    ${static-no}"
2910 echo "shared                    ${shared-no}"
2911 echo "postprocessing support    ${postproc-no}"
2912 echo "new filter support        ${avfilter-no}"
2913 echo "filters using lavformat   ${avfilter_lavf-no}"
2914 echo "network support           ${network-no}"
2915 echo "threading support         ${thread_type-no}"
2916 echo "SDL support               ${sdl-no}"
2917 echo "Sun medialib support      ${mlib-no}"
2918 echo "AVISynth enabled          ${avisynth-no}"
2919 echo "libdc1394 support         ${libdc1394-no}"
2920 echo "libdirac enabled          ${libdirac-no}"
2921 echo "libfaac enabled           ${libfaac-no}"
2922 echo "libgsm enabled            ${libgsm-no}"
2923 echo "libmp3lame enabled        ${libmp3lame-no}"
2924 echo "libnut enabled            ${libnut-no}"
2925 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2926 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2927 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2928 echo "librtmp enabled           ${librtmp-no}"
2929 echo "libschroedinger enabled   ${libschroedinger-no}"
2930 echo "libspeex enabled          ${libspeex-no}"
2931 echo "libtheora enabled         ${libtheora-no}"
2932 echo "libvorbis enabled         ${libvorbis-no}"
2933 echo "libvpx enabled            ${libvpx-no}"
2934 echo "libx264 enabled           ${libx264-no}"
2935 echo "libxvid enabled           ${libxvid-no}"
2936 echo "zlib enabled              ${zlib-no}"
2937 echo "bzlib enabled             ${bzlib-no}"
2938 echo
2939
2940 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2941     echo "Enabled ${type}s:"
2942     eval list=\$$(toupper $type)_LIST
2943     print_enabled '_*' $list | sort | pr -3 -t
2944     echo
2945 done
2946
2947 license="LGPL version 2.1 or later"
2948 if enabled nonfree; then
2949     license="nonfree and unredistributable"
2950 elif enabled gplv3; then
2951     license="GPL version 3 or later"
2952 elif enabled lgplv3; then
2953     license="LGPL version 3 or later"
2954 elif enabled gpl; then
2955     license="GPL version 2 or later"
2956 fi
2957
2958 echo "License: $license"
2959
2960 echo "Creating config.mak and config.h..."
2961
2962 # build tree in object directory if source path is different from current one
2963 if enabled source_path_used; then
2964     DIRS="
2965         doc
2966         libavcodec
2967         libavcodec/$arch
2968         libavdevice
2969         libavfilter
2970         libavformat
2971         libavutil
2972         libavutil/$arch
2973         libpostproc
2974         libswscale
2975         libswscale/$arch
2976         tests
2977         tools
2978     "
2979     FILES="
2980         Makefile
2981         common.mak
2982         subdir.mak
2983         doc/texi2pod.pl
2984         libavcodec/Makefile
2985         libavcodec/${arch}/Makefile
2986         libavdevice/Makefile
2987         libavfilter/Makefile
2988         libavformat/Makefile
2989         libavutil/Makefile
2990         libpostproc/Makefile
2991         libswscale/Makefile
2992     "
2993     map 'mkdir -p $v' $DIRS;
2994     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2995 fi
2996
2997 enabled stripping || strip="echo skipping strip"
2998
2999 cat > config.mak <<EOF
3000 # Automatically generated by configure - do not modify!
3001 ifndef FFMPEG_CONFIG_MAK
3002 FFMPEG_CONFIG_MAK=1
3003 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3004 prefix=$prefix
3005 LIBDIR=\$(DESTDIR)$libdir
3006 SHLIBDIR=\$(DESTDIR)$shlibdir
3007 INCDIR=\$(DESTDIR)$incdir
3008 BINDIR=\$(DESTDIR)$bindir
3009 DATADIR=\$(DESTDIR)$datadir
3010 MANDIR=\$(DESTDIR)$mandir
3011 SRC_PATH="$source_path"
3012 SRC_PATH_BARE=$source_path
3013 BUILD_ROOT="$PWD"
3014 ARCH=$arch
3015 CC=$cc
3016 AS=$as
3017 LD=$ld
3018 DEPCC=$dep_cc
3019 YASM=$yasmexe
3020 YASMDEP=$yasmexe
3021 AR=$ar
3022 RANLIB=$ranlib
3023 CP=cp -p
3024 LN_S=$ln_s
3025 STRIP=$strip
3026 CPPFLAGS=$CPPFLAGS
3027 CFLAGS=$CFLAGS
3028 ASFLAGS=$ASFLAGS
3029 CC_O=$CC_O
3030 LDFLAGS=$LDFLAGS
3031 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3032 SHFLAGS=$SHFLAGS
3033 YASMFLAGS=$YASMFLAGS
3034 BUILDSUF=$build_suffix
3035 FULLNAME=$FULLNAME
3036 LIBPREF=$LIBPREF
3037 LIBSUF=$LIBSUF
3038 LIBNAME=$LIBNAME
3039 SLIBPREF=$SLIBPREF
3040 SLIBSUF=$SLIBSUF
3041 EXESUF=$EXESUF
3042 EXTRA_VERSION=$extra_version
3043 DEPFLAGS=$DEPFLAGS
3044 CCDEP=$CCDEP
3045 ASDEP=$ASDEP
3046 CC_DEPFLAGS=$CC_DEPFLAGS
3047 AS_DEPFLAGS=$AS_DEPFLAGS
3048 HOSTCC=$host_cc
3049 HOSTCFLAGS=$host_cflags
3050 HOSTEXESUF=$HOSTEXESUF
3051 HOSTLDFLAGS=$host_ldflags
3052 HOSTLIBS=$host_libs
3053 TARGET_EXEC=$target_exec
3054 TARGET_PATH=$target_path
3055 SDL_LIBS=$sdl_libs
3056 SDL_CFLAGS=$sdl_cflags
3057 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3058 EXTRALIBS=$extralibs
3059 INSTALL=install
3060 LIBTARGET=${LIBTARGET}
3061 SLIBNAME=${SLIBNAME}
3062 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3063 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3064 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3065 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3066 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3067 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3068 SAMPLES=$samples
3069 EOF
3070
3071 get_version(){
3072     name=$1
3073     file=$source_path/$2
3074     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3075     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3076     lcname=$(tolower $name)
3077     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3078     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3079 }
3080
3081 get_version LIBSWSCALE  libswscale/swscale.h
3082 get_version LIBPOSTPROC libpostproc/postprocess.h
3083 get_version LIBAVCODEC  libavcodec/avcodec.h
3084 get_version LIBAVDEVICE libavdevice/avdevice.h
3085 get_version LIBAVFORMAT libavformat/avformat.h
3086 get_version LIBAVUTIL   libavutil/avutil.h
3087 get_version LIBAVFILTER libavfilter/avfilter.h
3088
3089 cat > $TMPH <<EOF
3090 /* Automatically generated by configure - do not modify! */
3091 #ifndef FFMPEG_CONFIG_H
3092 #define FFMPEG_CONFIG_H
3093 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3094 #define FFMPEG_LICENSE "$(c_escape $license)"
3095 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3096 #define CC_TYPE "$cc_type"
3097 #define CC_VERSION $cc_version
3098 #define restrict $_restrict
3099 #define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
3100 #define EXTERN_PREFIX "${extern_prefix}"
3101 #define EXTERN_ASM ${extern_prefix}
3102 EOF
3103
3104 test -n "$malloc_prefix" &&
3105     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3106
3107 if enabled small || disabled optimizations; then
3108     echo "#undef  av_always_inline"  >> $TMPH
3109     echo "#define av_always_inline"  >> $TMPH
3110 fi
3111
3112 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3113 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3114 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3115                                       $CONFIG_EXTRA      \
3116                                       $DECODER_LIST      \
3117                                       $ENCODER_LIST      \
3118                                       $HWACCEL_LIST      \
3119                                       $PARSER_LIST       \
3120                                       $BSF_LIST          \
3121                                       $DEMUXER_LIST      \
3122                                       $MUXER_LIST        \
3123                                       $FILTER_LIST       \
3124                                       $PROTOCOL_LIST     \
3125                                       $INDEV_LIST        \
3126                                       $OUTDEV_LIST       \
3127
3128 cat >>config.mak <<EOF
3129 ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3130 VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3131 LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3132 LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3133 EOF
3134
3135 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3136 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3137
3138 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3139 cp_if_changed $TMPH config.h
3140
3141 cat > $TMPH <<EOF
3142 /* Generated by ffconf */
3143 #ifndef AVUTIL_AVCONFIG_H
3144 #define AVUTIL_AVCONFIG_H
3145 EOF
3146
3147 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3148
3149 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3150
3151 cp_if_changed $TMPH libavutil/avconfig.h
3152
3153 test -n "$WARNINGS" && printf "\n$WARNINGS"
3154
3155 # build pkg-config files
3156
3157 pkgconfig_generate(){
3158 name=$1
3159 shortname=${name#lib}${build_suffix}
3160 comment=$2
3161 version=$3
3162 libs=$4
3163 requires=$5
3164 cat <<EOF > $name/$name.pc
3165 prefix=$prefix
3166 exec_prefix=\${prefix}
3167 libdir=$libdir
3168 includedir=$incdir
3169
3170 Name: $name
3171 Description: $comment
3172 Version: $version
3173 Requires: $(enabled shared || echo $requires)
3174 Requires.private: $(enabled shared && echo $requires)
3175 Conflicts:
3176 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3177 Libs.private: $(enabled shared && echo $libs)
3178 Cflags: -I\${includedir}
3179 EOF
3180 cat <<EOF > $name/$name-uninstalled.pc
3181 prefix=
3182 exec_prefix=
3183 libdir=\${pcfiledir}
3184 includedir=${source_path}
3185
3186 Name: $name
3187 Description: $comment
3188 Version: $version
3189 Requires: $requires
3190 Conflicts:
3191 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3192 Cflags: -I\${includedir}
3193 EOF
3194 }
3195
3196 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3197 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3198 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3199 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3200 enabled avfilter &&
3201     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3202 enabled postproc &&
3203     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3204 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"