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.err]
  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   --enable-avfilter        video filter support [no]
  93   --enable-avfilter-lavf   video filters dependent on avformat [no]
  94   --enable-beosthreads     use BeOS threads [no]
  95   --enable-os2threads      use OS/2 threads [no]
  96   --enable-pthreads        use pthreads [no]
  97   --enable-w32threads      use Win32 threads [no]
  98   --enable-x11grab         enable X11 grabbing [no]
  99   --disable-network        disable network support [no]
 100   --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
 101   --enable-gray            enable full grayscale support (slower color)
 102   --disable-swscale-alpha  disable alpha channel support in swscale
 103   --disable-fastdiv        disable table-based division
 104   --enable-small           optimize for size instead of speed
 105   --disable-aandct         disable AAN DCT code
 106   --disable-dct            disable DCT code
 107   --disable-fft            disable FFT code
 108   --disable-golomb         disable Golomb code
 109   --disable-lpc            disable LPC code
 110   --disable-mdct           disable MDCT code
 111   --disable-rdft           disable RDFT code
 112   --disable-vaapi          disable VAAPI code
 113   --disable-vdpau          disable VDPAU code
 114   --disable-dxva2          disable DXVA2 code
 115   --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
 116   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
 117   --enable-memalign-hack   emulate memalign, interferes with memory debuggers
 118   --enable-beos-netserver  enable BeOS netserver
 119   --disable-everything     disable all components listed below
 120   --disable-encoder=NAME   disable encoder NAME
 121   --enable-encoder=NAME    enable encoder NAME
 122   --disable-encoders       disable all encoders
 123   --disable-decoder=NAME   disable decoder NAME
 124   --enable-decoder=NAME    enable decoder NAME
 125   --disable-decoders       disable all decoders
 126   --disable-hwaccel=NAME   disable hwaccel NAME
 127   --enable-hwaccel=NAME    enable hwaccel NAME
 128   --disable-hwaccels       disable all hwaccels
 129   --disable-muxer=NAME     disable muxer NAME
 130   --enable-muxer=NAME      enable muxer NAME
 131   --disable-muxers         disable all muxers
 132   --disable-demuxer=NAME   disable demuxer NAME
 133   --enable-demuxer=NAME    enable demuxer NAME
 134   --disable-demuxers       disable all demuxers
 135   --enable-parser=NAME     enable parser NAME
 136   --disable-parser=NAME    disable parser NAME
 137   --disable-parsers        disable all parsers
 138   --enable-bsf=NAME        enable bitstream filter NAME
 139   --disable-bsf=NAME       disable bitstream filter NAME
 140   --disable-bsfs           disable all bitstream filters
 141   --enable-protocol=NAME   enable protocol NAME
 142   --disable-protocol=NAME  disable protocol NAME
 143   --disable-protocols      disable all protocols
 144   --disable-indev=NAME     disable input device NAME
 145   --disable-outdev=NAME    disable output device NAME
 146   --disable-indevs         disable input devices
 147   --disable-outdevs        disable output devices
 148   --disable-devices        disable all devices
 149   --enable-filter=NAME     enable filter NAME
 150   --disable-filter=NAME    disable filter NAME
 151   --disable-filters        disable all filters
 152   --list-decoders          show all available decoders
 153   --list-encoders          show all available encoders
 154   --list-hwaccels          show all available hardware accelerators
 155   --list-muxers            show all available muxers
 156   --list-demuxers          show all available demuxers
 157   --list-parsers           show all available parsers
 158   --list-protocols         show all available protocols
 159   --list-bsfs              show all available bitstream filters
 160   --list-indevs            show all available input devices
 161   --list-outdevs           show all available output devices
 162   --list-filters           show all available filters
 163
 164 External library support:
 165   --enable-avisynth        enable reading of AVISynth script files [no]
 166   --enable-bzlib           enable bzlib [autodetect]
 167   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
 168   --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
 169   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
 170                            and libraw1394 [no]
 171   --enable-libdirac        enable Dirac support via libdirac [no]
 172   --enable-libfaac         enable FAAC support via libfaac [no]
 173   --enable-libfaad         enable FAAD support via libfaad [no]
 174   --enable-libfaadbin      open libfaad.so.0 at runtime [no]
 175   --enable-libgsm          enable GSM support via libgsm [no]
 176   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
 177   --enable-libnut          enable NUT (de)muxing via libnut,
 178                            native (de)muxer exists [no]
 179   --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
 180   --enable-librtmp         enable RTMP[E] support via librtmp [no]
 181   --enable-libschroedinger enable Dirac support via libschroedinger [no]
 182   --enable-libspeex        enable Speex decoding via libspeex [no]
 183   --enable-libtheora       enable Theora encoding via libtheora [no]
 184   --enable-libvorbis       enable Vorbis encoding via libvorbis,
 185                            native implementation exists [no]
 186   --enable-libx264         enable H.264 encoding via x264 [no]
 187   --enable-libxvid         enable Xvid encoding via xvidcore,
 188                            native MPEG-4/Xvid encoder exists [no]
 189   --enable-mlib            enable Sun medialib [no]
 190   --enable-zlib            enable zlib [autodetect]
 191
 192 Advanced options (experts only):
 193   --source-path=PATH       path to source code [$source_path]
 194   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
 195   --enable-cross-compile   assume a cross-compiler is used
 196   --sysroot=PATH           root of cross-build tree
 197   --sysinclude=PATH        location of cross-build system headers
 198   --target-os=OS           compiler targets OS [$target_os]
 199   --target-exec=CMD        command to run executables on target
 200   --target-path=DIR        path to view of build directory on target
 201   --nm=NM                  use nm tool
 202   --ar=AR                  use archive tool AR [$ar_default]
 203   --as=AS                  use assembler AS [$as_default]
 204   --cc=CC                  use C compiler CC [$cc_default]
 205   --ld=LD                  use linker LD
 206   --host-cc=HOSTCC         use host C compiler HOSTCC
 207   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
 208   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
 209   --host-libs=HLIBS        use libs HLIBS when linking for host
 210   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
 211   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
 212   --extra-libs=ELIBS       add ELIBS [$ELIBS]
 213   --extra-version=STRING   version string suffix []
 214   --build-suffix=SUFFIX    library name suffix []
 215   --arch=ARCH              select architecture [$arch]
 216   --cpu=CPU                select the minimum required CPU (affects
 217                            instruction selection, may crash on older CPUs)
 218   --enable-powerpc-perf    enable performance report on PPC
 219                            (requires enabling PMC)
 220   --disable-asm            disable all assembler optimizations
 221   --disable-altivec        disable AltiVec optimizations
 222   --disable-amd3dnow       disable 3DNow! optimizations
 223   --disable-amd3dnowext    disable 3DNow! extended optimizations
 224   --disable-mmx            disable MMX optimizations
 225   --disable-mmx2           disable MMX2 optimizations
 226   --disable-sse            disable SSE optimizations
 227   --disable-ssse3          disable SSSE3 optimizations
 228   --disable-armv5te        disable armv5te optimizations
 229   --disable-armv6          disable armv6 optimizations
 230   --disable-armv6t2        disable armv6t2 optimizations
 231   --disable-armvfp         disable ARM VFP optimizations
 232   --disable-iwmmxt         disable iwmmxt optimizations
 233   --disable-mmi            disable MMI optimizations
 234   --disable-neon           disable neon optimizations
 235   --disable-vis            disable VIS optimizations
 236   --disable-yasm           disable use of yasm assembler
 237   --enable-pic             build position-independent code
 238   --malloc-prefix=PFX      prefix malloc and related names with PFX
 239   --enable-sram            allow use of on-chip SRAM
 240
 241 Developer options (useful when working on FFmpeg itself):
 242   --disable-debug          disable debugging symbols
 243   --enable-debug=LEVEL     set the debug level [$debuglevel]
 244   --enable-gprof           enable profiling with gprof [$gprof]
 245   --disable-optimizations  disable compiler optimizations
 246   --enable-extra-warnings  enable more compiler warnings
 247   --disable-stripping      disable stripping of executables and shared libraries
 248   --samples=PATH           location of test samples for FATE
 249
 250 NOTE: Object files are built at the place where configure is launched.
 251 EOF
 252   exit 0
 253 }
 254
 255 log(){
 256     echo "$@" >> $logfile
 257 }
 258
 259 log_file(){
 260     log BEGIN $1
 261     pr -n -t $1 >> $logfile
 262     log END $1
 263 }
 264
 265 echolog(){
 266     log "$@"
 267     echo "$@"
 268 }
 269
 270 die(){
 271     echolog "$@"
 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 flags_saved(){
 514     (: ${SAVE_CFLAGS?}) 2> /dev/null
 515 }
 516
 517 save_flags(){
 518     flags_saved && return
 519     SAVE_CFLAGS="$CFLAGS"
 520     SAVE_LDFLAGS="$LDFLAGS"
 521     SAVE_extralibs="$extralibs"
 522 }
 523
 524 restore_flags(){
 525     flags_saved || return
 526     CFLAGS="$SAVE_CFLAGS"
 527     LDFLAGS="$SAVE_LDFLAGS"
 528     extralibs="$SAVE_extralibs"
 529     unset SAVE_CFLAGS
 530     unset SAVE_LDFLAGS
 531     unset SAVE_extralibs
 532 }
 533
 534 temp_cflags(){
 535     save_flags
 536     CFLAGS="$CFLAGS $*"
 537 }
 538
 539 temp_ldflags(){
 540     save_flags
 541     LDFLAGS="$LDFLAGS $*"
 542 }
 543
 544 temp_extralibs(){
 545     save_flags
 546     extralibs="$extralibs $*"
 547 }
 548
 549 append(){
 550     var=$1
 551     shift
 552     flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
 553     eval "$var=\"\$$var $*\""
 554 }
 555
 556 add_cppflags(){
 557     append CPPFLAGS $($filter_cppflags "$@")
 558 }
 559
 560 add_cflags(){
 561     append CFLAGS $($filter_cflags "$@")
 562 }
 563
 564 add_asflags(){
 565     append ASFLAGS $($filter_asflags "$@")
 566 }
 567
 568 add_ldflags(){
 569     append LDFLAGS "$@"
 570 }
 571
 572 add_extralibs(){
 573     append extralibs "$@"
 574 }
 575
 576 check_cmd(){
 577     log "$@"
 578     "$@" >> $logfile 2>&1
 579 }
 580
 581 check_cc(){
 582     log check_cc "$@"
 583     cat > $TMPC
 584     log_file $TMPC
 585     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
 586 }
 587
 588 check_cpp(){
 589     log check_cpp "$@"
 590     cat > $TMPC
 591     log_file $TMPC
 592     check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
 593 }
 594
 595 check_as(){
 596     log check_as "$@"
 597     cat > $TMPC
 598     log_file $TMPC
 599     check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
 600 }
 601
 602 check_asm(){
 603     log check_asm "$@"
 604     name="$1"
 605     code="$2"
 606     shift 2
 607     disable $name
 608     check_as "$@" <<EOF && enable $name
 609 void foo(void){ __asm__ volatile($code); }
 610 EOF
 611 }
 612
 613 check_yasm(){
 614     log check_yasm "$@"
 615     echo "$1" > $TMPS
 616     log_file $TMPS
 617     shift 1
 618     check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
 619 }
 620
 621 check_ld(){
 622     log check_ld "$@"
 623     flags=''
 624     libs=''
 625     for f; do
 626         test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
 627     done
 628     check_cc $($filter_cflags $flags) || return
 629     check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
 630 }
 631
 632 check_cppflags(){
 633     log check_cppflags "$@"
 634     set -- $($filter_cppflags "$@")
 635     check_cc "$@" <<EOF && append CPPFLAGS "$@"
 636 int x;
 637 EOF
 638 }
 639
 640 check_cflags(){
 641     log check_cflags "$@"
 642     set -- $($filter_cflags "$@")
 643     check_cc "$@" <<EOF && append CFLAGS "$@"
 644 int x;
 645 EOF
 646 }
 647
 648 test_ldflags(){
 649     log test_ldflags "$@"
 650     check_ld "$@" <<EOF
 651 int main(void){ return 0; }
 652 EOF
 653 }
 654
 655 check_ldflags(){
 656     log check_ldflags "$@"
 657     test_ldflags "$@" && add_ldflags "$@"
 658 }
 659
 660 check_header(){
 661     log check_header "$@"
 662     header=$1
 663     shift
 664     disable_safe $header
 665     check_cpp "$@" <<EOF && enable_safe $header
 666 #include <$header>
 667 int x;
 668 EOF
 669 }
 670
 671 check_func(){
 672     log check_func "$@"
 673     func=$1
 674     shift
 675     disable $func
 676     check_ld "$@" <<EOF && enable $func
 677 extern int $func();
 678 int main(void){ $func(); }
 679 EOF
 680 }
 681
 682 check_mathfunc(){
 683     log check_mathfunc "$@"
 684     func=$1
 685     shift
 686     disable $func
 687     check_ld "$@" <<EOF && enable $func
 688 #include <math.h>
 689 float foo(float f) { return $func(f); }
 690 int main(void){ return 0; }
 691 EOF
 692 }
 693
 694 check_func_headers(){
 695     log check_func_headers "$@"
 696     headers=$1
 697     func=$2
 698     shift 2
 699     disable $func
 700     incs=""
 701     for hdr in $headers; do
 702         incs="$incs
 703 #include <$hdr>"
 704     done
 705     check_ld "$@" <<EOF && enable $func && enable_safe $headers
 706 $incs
 707 int main(int argc, char **argv){
 708     return (long) $func;
 709 }
 710 EOF
 711 }
 712
 713 check_cpp_condition(){
 714     log check_cpp_condition "$@"
 715     header=$1
 716     condition=$2
 717     shift 2
 718     check_cpp $($filter_cppflags "$@") <<EOF
 719 #include <$header>
 720 #if !($condition)
 721 #error "unsatisfied condition: $condition"
 722 #endif
 723 EOF
 724 }
 725
 726 check_lib(){
 727     log check_lib "$@"
 728     header="$1"
 729     func="$2"
 730     shift 2
 731     temp_extralibs "$@"
 732     check_header $header && check_func $func && add_extralibs "$@"
 733     err=$?
 734     restore_flags
 735     return $err
 736 }
 737
 738 check_lib2(){
 739     log check_lib2 "$@"
 740     headers="$1"
 741     func="$2"
 742     shift 2
 743     check_func_headers "$headers" $func "$@" && add_extralibs "$@"
 744 }
 745
 746 check_exec(){
 747     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
 748 }
 749
 750 check_exec_crash(){
 751     code=$(cat)
 752
 753     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
 754     # are safe but may not be available everywhere.  Thus we use
 755     # raise(SIGTERM) instead.  The check is run in a subshell so we
 756     # can redirect the "Terminated" message from the shell.  SIGBUS
 757     # is not defined by standard C so it is used conditionally.
 758
 759     (check_exec "$@") >> $logfile 2>&1 <<EOF
 760 #include <signal.h>
 761 static void sighandler(int sig){
 762     raise(SIGTERM);
 763 }
 764 int main(void){
 765     signal(SIGILL, sighandler);
 766     signal(SIGFPE, sighandler);
 767     signal(SIGSEGV, sighandler);
 768 #ifdef SIGBUS
 769     signal(SIGBUS, sighandler);
 770 #endif
 771     { $code }
 772 }
 773 EOF
 774 }
 775
 776 check_type(){
 777     log check_type "$@"
 778     headers=$1
 779     type=$2
 780     shift 2
 781     disable_safe "$type"
 782     incs=""
 783     for hdr in $headers; do
 784         incs="$incs
 785 #include <$hdr>"
 786     done
 787     check_cc "$@" <<EOF && enable_safe "$type"
 788 $incs
 789 $type v;
 790 EOF
 791 }
 792
 793 check_struct(){
 794     log check_type "$@"
 795     headers=$1
 796     struct=$2
 797     member=$3
 798     shift 3
 799     disable_safe "${struct}_${member}"
 800     incs=""
 801     for hdr in $headers; do
 802         incs="$incs
 803 #include <$hdr>"
 804     done
 805     check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
 806 $incs
 807 const void *p = &(($struct *)0)->$member;
 808 EOF
 809 }
 810
 811 require(){
 812     name="$1"
 813     header="$2"
 814     func="$3"
 815     shift 3
 816     check_lib $header $func "$@" || die "ERROR: $name not found"
 817 }
 818
 819 require2(){
 820     name="$1"
 821     headers="$2"
 822     func="$3"
 823     shift 3
 824     check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
 825 }
 826
 827 check_foo_config(){
 828     cfg=$1
 829     pkg=$2
 830     header=$3
 831     func=$4
 832     shift 4
 833     disable $cfg
 834     check_cmd ${pkg}-config --version
 835     err=$?
 836     if test "$err" = 0; then
 837         temp_cflags $(${pkg}-config --cflags)
 838         temp_extralibs $(${pkg}-config --libs)
 839         check_lib "$@" $header $func && enable $cfg
 840     fi
 841     return $err
 842 }
 843
 844 check_host_cc(){
 845     log check_host_cc "$@"
 846     cat > $TMPC
 847     log_file $TMPC
 848     check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
 849 }
 850
 851 check_host_cflags(){
 852     log check_host_cflags "$@"
 853     check_host_cc "$@" <<EOF && append host_cflags "$@"
 854 int x;
 855 EOF
 856 }
 857
 858 apply(){
 859     file=$1
 860     shift
 861     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
 862 }
 863
 864 cp_if_changed(){
 865     cmp -s "$1" "$2" &&
 866         echo "$2 is unchanged" ||
 867         cp -f "$1" "$2"
 868 }
 869
 870 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
 871 # system-dependent things.
 872
 873 COMPONENT_LIST="
 874     bsfs
 875     decoders
 876     demuxers
 877     encoders
 878     filters
 879     hwaccels
 880     indevs
 881     muxers
 882     outdevs
 883     parsers
 884     protocols
 885 "
 886
 887 CONFIG_LIST="
 888     $COMPONENT_LIST
 889     aandct
 890     avcodec
 891     avdevice
 892     avfilter
 893     avfilter_lavf
 894     avformat
 895     avisynth
 896     beos_netserver
 897     bzlib
 898     dct
 899     doc
 900     dwt
 901     dxva2
 902     fastdiv
 903     ffmpeg
 904     ffplay
 905     ffprobe
 906     ffserver
 907     fft
 908     golomb
 909     gpl
 910     gprof
 911     gray
 912     h264dsp
 913     hardcoded_tables
 914     libdc1394
 915     libdirac
 916     libfaac
 917     libfaad
 918     libfaadbin
 919     libgsm
 920     libmp3lame
 921     libnut
 922     libopencore_amrnb
 923     libopencore_amrwb
 924     libopenjpeg
 925     librtmp
 926     libschroedinger
 927     libspeex
 928     libtheora
 929     libvorbis
 930     libx264
 931     libxvid
 932     lpc
 933     lsp
 934     mdct
 935     memalign_hack
 936     mlib
 937     mpegaudio_hp
 938     network
 939     nonfree
 940     pic
 941     postproc
 942     powerpc_perf
 943     rdft
 944     runtime_cpudetect
 945     shared
 946     small
 947     sram
 948     static
 949     swscale
 950     swscale_alpha
 951     vaapi
 952     vdpau
 953     version3
 954     x11grab
 955     zlib
 956 "
 957
 958 THREADS_LIST='
 959     beosthreads
 960     os2threads
 961     pthreads
 962     w32threads
 963 '
 964
 965 ARCH_LIST='
 966     alpha
 967     arm
 968     avr32
 969     avr32_ap
 970     avr32_uc
 971     bfin
 972     ia64
 973     m68k
 974     mips
 975     mips64
 976     parisc
 977     ppc
 978     ppc64
 979     s390
 980     sh4
 981     sparc
 982     sparc64
 983     tomi
 984     x86
 985     x86_32
 986     x86_64
 987 '
 988
 989 ARCH_EXT_LIST='
 990     altivec
 991     amd3dnow
 992     amd3dnowext
 993     armv5te
 994     armv6
 995     armv6t2
 996     armvfp
 997     iwmmxt
 998     mmi
 999     mmx
1000     mmx2
1001     neon
1002     ppc4xx
1003     sse
1004     ssse3
1005     vis
1006 '
1007
1008 HAVE_LIST_PUB='
1009     bigendian
1010 '
1011
1012 HAVE_LIST="
1013     $ARCH_EXT_LIST
1014     $HAVE_LIST_PUB
1015     $THREADS_LIST
1016     alsa_asoundlib_h
1017     altivec_h
1018     arpa_inet_h
1019     attribute_may_alias
1020     attribute_packed
1021     bswap
1022     closesocket
1023     cmov
1024     conio_h
1025     dcbzl
1026     dev_bktr_ioctl_bt848_h
1027     dev_bktr_ioctl_meteor_h
1028     dev_ic_bt8xx_h
1029     dev_video_meteor_ioctl_meteor_h
1030     dev_video_bktr_ioctl_bt848_h
1031     dlfcn_h
1032     dlopen
1033     dos_paths
1034     ebp_available
1035     ebx_available
1036     exp2
1037     exp2f
1038     fast_64bit
1039     fast_clz
1040     fast_cmov
1041     fast_unaligned
1042     fork
1043     getaddrinfo
1044     gethrtime
1045     GetProcessMemoryInfo
1046     GetProcessTimes
1047     getrusage
1048     struct_rusage_ru_maxrss
1049     inet_aton
1050     inline_asm
1051     isatty
1052     ldbrx
1053     libdc1394_1
1054     libdc1394_2
1055     llrint
1056     llrintf
1057     local_aligned_16
1058     local_aligned_8
1059     log2
1060     log2f
1061     loongson
1062     lrint
1063     lrintf
1064     lzo1x_999_compress
1065     machine_ioctl_bt848_h
1066     machine_ioctl_meteor_h
1067     malloc_h
1068     memalign
1069     mkstemp
1070     pld
1071     posix_memalign
1072     round
1073     roundf
1074     sdl
1075     sdl_video_size
1076     setmode
1077     socklen_t
1078     soundcard_h
1079     poll_h
1080     setrlimit
1081     strerror_r
1082     struct_addrinfo
1083     struct_ipv6_mreq
1084     struct_sockaddr_in6
1085     struct_sockaddr_sa_len
1086     struct_sockaddr_storage
1087     sys_mman_h
1088     sys_resource_h
1089     sys_select_h
1090     sys_soundcard_h
1091     sys_videoio_h
1092     ten_operands
1093     termios_h
1094     threads
1095     truncf
1096     vfp_args
1097     VirtualAlloc
1098     winsock2_h
1099     xform_asm
1100     yasm
1101 "
1102
1103 # options emitted with CONFIG_ prefix but not available on command line
1104 CONFIG_EXTRA="
1105     avutil
1106     gplv3
1107     lgplv3
1108 "
1109
1110 CMDLINE_SELECT="
1111     $ARCH_EXT_LIST
1112     $CONFIG_LIST
1113     $THREADS_LIST
1114     asm
1115     cross_compile
1116     debug
1117     extra_warnings
1118     logging
1119     optimizations
1120     stripping
1121     yasm
1122 "
1123
1124 PATHS_LIST='
1125     bindir
1126     datadir
1127     incdir
1128     libdir
1129     mandir
1130     prefix
1131     shlibdir
1132 '
1133
1134 CMDLINE_SET="
1135     $PATHS_LIST
1136     ar
1137     arch
1138     as
1139     build_suffix
1140     cc
1141     cpu
1142     cross_prefix
1143     dep_cc
1144     extra_version
1145     host_cc
1146     host_cflags
1147     host_ldflags
1148     host_libs
1149     host_os
1150     ld
1151     logfile
1152     malloc_prefix
1153     nm
1154     samples
1155     source_path
1156     strip
1157     sysinclude
1158     sysroot
1159     target_exec
1160     target_os
1161     target_path
1162 "
1163
1164 CMDLINE_APPEND="
1165     extra_cflags
1166 "
1167
1168 # code dependency declarations
1169
1170 # architecture extensions
1171
1172 armv5te_deps="arm"
1173 armv6_deps="arm"
1174 armv6t2_deps="arm"
1175 armvfp_deps="arm"
1176 iwmmxt_deps="arm"
1177 neon_deps="arm"
1178
1179 mmi_deps="mips"
1180
1181 altivec_deps="ppc"
1182 ppc4xx_deps="ppc"
1183
1184 vis_deps="sparc"
1185
1186 x86_64_suggest="cmov fast_cmov"
1187 amd3dnow_deps="mmx"
1188 amd3dnowext_deps="amd3dnow"
1189 mmx_deps="x86"
1190 mmx2_deps="mmx"
1191 sse_deps="mmx"
1192 ssse3_deps="sse"
1193
1194 fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1195 fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1196 fast_unaligned_if_any="armv6 ppc x86"
1197
1198 need_memalign="altivec neon sse"
1199 inline_asm_deps="!tms470"
1200
1201 # subsystems
1202 mdct_select="fft"
1203 rdft_select="fft"
1204
1205 # decoders / encoders / hardware accelerators
1206 aac_decoder_select="mdct rdft aac_parser"
1207 aac_encoder_select="mdct"
1208 ac3_decoder_select="mdct ac3_parser"
1209 alac_encoder_select="lpc"
1210 amrnb_decoder_select="lsp"
1211 atrac1_decoder_select="mdct"
1212 atrac3_decoder_select="mdct"
1213 binkaudio_dct_decoder_select="mdct rdft dct"
1214 binkaudio_rdft_decoder_select="mdct rdft"
1215 cavs_decoder_select="golomb"
1216 cook_decoder_select="mdct"
1217 cscd_decoder_suggest="zlib"
1218 dca_decoder_select="mdct"
1219 dnxhd_encoder_select="aandct"
1220 dxa_decoder_select="zlib"
1221 eac3_decoder_select="ac3_decoder"
1222 eamad_decoder_select="aandct"
1223 eatgq_decoder_select="aandct"
1224 eatqi_decoder_select="aandct"
1225 ffv1_decoder_select="golomb"
1226 flac_decoder_select="golomb"
1227 flac_encoder_select="golomb lpc"
1228 flashsv_decoder_select="zlib"
1229 flashsv_encoder_select="zlib"
1230 flv_decoder_select="h263_decoder"
1231 flv_encoder_select="h263_encoder"
1232 h261_encoder_select="aandct"
1233 h263_decoder_select="h263_parser"
1234 h263_encoder_select="aandct"
1235 h263_vaapi_hwaccel_select="vaapi h263_decoder"
1236 h263i_decoder_select="h263_decoder"
1237 h263p_encoder_select="h263_encoder"
1238 h264_decoder_select="golomb h264dsp"
1239 h264_dxva2_hwaccel_deps="dxva2api_h"
1240 h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1241 h264_vaapi_hwaccel_select="vaapi"
1242 h264_vdpau_decoder_select="vdpau h264_decoder"
1243 imc_decoder_select="fft mdct"
1244 jpegls_decoder_select="golomb"
1245 jpegls_encoder_select="golomb"
1246 ljpeg_encoder_select="aandct"
1247 loco_decoder_select="golomb"
1248 mjpeg_encoder_select="aandct"
1249 mlp_decoder_select="mlp_parser"
1250 mpeg1video_encoder_select="aandct"
1251 mpeg2video_encoder_select="aandct"
1252 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1253 mpeg4_encoder_select="h263_encoder"
1254 mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1255 mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1256 mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1257 mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1258 mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1259 mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1260 mpeg_xvmc_decoder_select="mpegvideo_decoder"
1261 msmpeg4v1_decoder_select="h263_decoder"
1262 msmpeg4v1_encoder_select="h263_encoder"
1263 msmpeg4v2_decoder_select="h263_decoder"
1264 msmpeg4v2_encoder_select="h263_encoder"
1265 msmpeg4v3_decoder_select="h263_decoder"
1266 msmpeg4v3_encoder_select="h263_encoder"
1267 nellymoser_decoder_select="mdct"
1268 nellymoser_encoder_select="mdct"
1269 png_decoder_select="zlib"
1270 png_encoder_select="zlib"
1271 qcelp_decoder_select="lsp"
1272 qdm2_decoder_select="mdct rdft"
1273 rv10_decoder_select="h263_decoder"
1274 rv10_encoder_select="h263_encoder"
1275 rv20_decoder_select="h263_decoder"
1276 rv20_encoder_select="h263_encoder"
1277 rv30_decoder_select="golomb h264dsp"
1278 rv40_decoder_select="golomb h264dsp"
1279 shorten_decoder_select="golomb"
1280 sipr_decoder_select="lsp"
1281 snow_decoder_select="dwt"
1282 snow_encoder_select="aandct dwt"
1283 sonic_decoder_select="golomb"
1284 sonic_encoder_select="golomb"
1285 sonic_ls_encoder_select="golomb"
1286 svq1_encoder_select="aandct"
1287 svq3_decoder_select="golomb h264dsp"
1288 svq3_decoder_suggest="zlib"
1289 theora_decoder_select="vp3_decoder"
1290 tiff_decoder_suggest="zlib"
1291 tiff_encoder_suggest="zlib"
1292 truehd_decoder_select="mlp_decoder"
1293 tscc_decoder_select="zlib"
1294 twinvq_decoder_select="mdct lsp"
1295 vc1_decoder_select="h263_decoder"
1296 vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1297 vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1298 vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1299 vc1_vdpau_decoder_select="vdpau vc1_decoder"
1300 vorbis_decoder_select="mdct"
1301 vorbis_encoder_select="mdct"
1302 vp6a_decoder_select="vp6_decoder"
1303 vp6f_decoder_select="vp6_decoder"
1304 wmapro_decoder_select="mdct"
1305 wmav1_decoder_select="mdct"
1306 wmav1_encoder_select="mdct"
1307 wmav2_decoder_select="mdct"
1308 wmav2_encoder_select="mdct"
1309 wmavoice_decoder_select="lsp rdft dct"
1310 wmv1_decoder_select="h263_decoder"
1311 wmv1_encoder_select="h263_encoder"
1312 wmv2_decoder_select="h263_decoder"
1313 wmv2_encoder_select="h263_encoder"
1314 wmv3_decoder_select="vc1_decoder"
1315 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1316 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1317 wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1318 zlib_decoder_select="zlib"
1319 zlib_encoder_select="zlib"
1320 zmbv_decoder_select="zlib"
1321 zmbv_encoder_select="zlib"
1322
1323 vaapi_deps="va_va_h"
1324 vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1325
1326 # parsers
1327 h264_parser_select="golomb h264dsp"
1328
1329 # bitstream_filters
1330 aac_adtstoasc_bsf_select="aac_parser"
1331
1332 # external libraries
1333 libdirac_decoder_deps="libdirac !libschroedinger"
1334 libdirac_encoder_deps="libdirac"
1335 libfaac_encoder_deps="libfaac"
1336 libfaad_decoder_deps="libfaad"
1337 libfaadbin_decoder_extralibs='$ldl'
1338 libgsm_decoder_deps="libgsm"
1339 libgsm_encoder_deps="libgsm"
1340 libgsm_ms_decoder_deps="libgsm"
1341 libgsm_ms_encoder_deps="libgsm"
1342 libmp3lame_encoder_deps="libmp3lame"
1343 libopencore_amrnb_decoder_deps="libopencore_amrnb"
1344 libopencore_amrnb_encoder_deps="libopencore_amrnb"
1345 libopencore_amrwb_decoder_deps="libopencore_amrwb"
1346 libopenjpeg_decoder_deps="libopenjpeg"
1347 libschroedinger_decoder_deps="libschroedinger"
1348 libschroedinger_encoder_deps="libschroedinger"
1349 libspeex_decoder_deps="libspeex"
1350 libtheora_encoder_deps="libtheora"
1351 libvorbis_encoder_deps="libvorbis"
1352 libx264_encoder_deps="libx264"
1353 libxvid_encoder_deps="libxvid"
1354
1355 # demuxers / muxers
1356 ac3_demuxer_deps="ac3_parser"
1357 asf_stream_muxer_select="asf_muxer"
1358 avisynth_demuxer_deps="avisynth"
1359 dirac_demuxer_deps="dirac_parser"
1360 eac3_demuxer_select="ac3_parser"
1361 ipod_muxer_select="mov_muxer"
1362 libnut_demuxer_deps="libnut"
1363 libnut_muxer_deps="libnut"
1364 matroska_audio_muxer_select="matroska_muxer"
1365 matroska_demuxer_suggest="zlib bzlib"
1366 mov_demuxer_suggest="zlib"
1367 mp3_demuxer_deps="mpegaudio_parser"
1368 mp4_muxer_select="mov_muxer"
1369 mpegtsraw_demuxer_select="mpegts_demuxer"
1370 mxf_d10_muxer_select="mxf_muxer"
1371 ogg_demuxer_select="golomb"
1372 psp_muxer_select="mov_muxer"
1373 rtsp_demuxer_deps="sdp_demuxer"
1374 rtsp_muxer_deps="sdp_demuxer"
1375 rtsp_muxer_select="rtp_muxer"
1376 sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1377 sdp_demuxer_select="asf_demuxer rm_demuxer"
1378 spdif_muxer_select="aac_parser"
1379 tg2_muxer_select="mov_muxer"
1380 tgp_muxer_select="mov_muxer"
1381 w64_demuxer_deps="wav_demuxer"
1382
1383 # indevs / outdevs
1384 alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1385 alsa_indev_extralibs="-lasound"
1386 alsa_outdev_deps="alsa_asoundlib_h"
1387 alsa_outdev_extralibs="-lasound"
1388 audio_beos_indev_deps="audio_beos"
1389 audio_beos_indev_extralibs="-lmedia -lbe"
1390 audio_beos_outdev_deps="audio_beos"
1391 audio_beos_outdev_extralibs="-lmedia -lbe"
1392 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1393 dv1394_indev_deps="dv1394 dv_demuxer"
1394 jack_indev_deps="jack_jack_h"
1395 jack_indev_extralibs="-ljack"
1396 libdc1394_indev_deps="libdc1394"
1397 oss_indev_deps_any="soundcard_h sys_soundcard_h"
1398 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1399 v4l_indev_deps="linux_videodev_h"
1400 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1401 vfwcap_indev_deps="capCreateCaptureWindow"
1402 vfwcap_indev_extralibs="-lavicap32"
1403 x11_grab_device_indev_deps="x11grab XShmCreateImage"
1404 x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1405
1406 # protocols
1407 gopher_protocol_deps="network"
1408 http_protocol_deps="network"
1409 http_protocol_select="tcp_protocol"
1410 rtmp_protocol_deps="tcp_protocol"
1411 rtp_protocol_deps="udp_protocol"
1412 tcp_protocol_deps="network"
1413 udp_protocol_deps="network"
1414
1415 # filters
1416 movie_filter_deps="avfilter_lavf"
1417 avfilter_lavf_deps="avformat"
1418
1419 # libraries
1420 avdevice_deps="avcodec avformat"
1421 avformat_deps="avcodec"
1422
1423 # programs
1424 ffmpeg_deps="avcodec avformat swscale"
1425 ffplay_deps="avcodec avformat swscale sdl"
1426 ffplay_select="rdft"
1427 ffprobe_deps="avcodec avformat"
1428 ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
1429 ffserver_extralibs='$ldl'
1430
1431 doc_deps="texi2html"
1432
1433 # default parameters
1434
1435 logfile="config.err"
1436
1437 # installation paths
1438 prefix_default="/usr/local"
1439 bindir_default='${prefix}/bin'
1440 datadir_default='${prefix}/share/ffmpeg'
1441 incdir_default='${prefix}/include'
1442 libdir_default='${prefix}/lib'
1443 mandir_default='${prefix}/share/man'
1444 shlibdir_default="$libdir_default"
1445
1446 # toolchain
1447 ar_default="ar"
1448 cc_default="gcc"
1449 cc_version=\"unknown\"
1450 host_cc_default="gcc"
1451 ln_s="ln -sf"
1452 nm_default="nm"
1453 objformat="elf"
1454 ranlib="ranlib"
1455 strip_default="strip"
1456 yasmexe="yasm"
1457
1458 nm_opts='-g'
1459
1460 # machine
1461 arch_default=$(uname -m)
1462 cpu="generic"
1463
1464 # OS
1465 target_os_default=$(tolower $(uname -s))
1466 host_os=$target_os_default
1467
1468 # configurable options
1469 enable avcodec
1470 enable avdevice
1471 enable avformat
1472 enable avutil
1473 enable asm
1474 enable debug
1475 enable doc
1476 enable fastdiv
1477 enable ffmpeg
1478 enable ffplay
1479 enable ffprobe
1480 enable ffserver
1481 enable mpegaudio_hp
1482 enable network
1483 enable optimizations
1484 enable protocols
1485 enable static
1486 enable stripping
1487 enable swscale
1488 enable swscale_alpha
1489
1490 # build settings
1491 SHFLAGS='-shared -Wl,-soname,$$(@F)'
1492 FFSERVERLDFLAGS=-Wl,-E
1493 LIBPREF="lib"
1494 LIBSUF=".a"
1495 FULLNAME='$(NAME)$(BUILDSUF)'
1496 LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1497 SLIBPREF="lib"
1498 SLIBSUF=".so"
1499 SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1500 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1501 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1502 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1503
1504 CC_O='-o $@'
1505
1506 host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1507 host_libs='-lm'
1508
1509 target_path='$(CURDIR)'
1510
1511 # gcc stupidly only outputs the basename of targets with -MM, but we need the
1512 # full relative path for objects in subdirectories for non-recursive Make.
1513 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1514 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1515
1516 # find source path
1517 source_path="$(dirname "$0")"
1518 enable source_path_used
1519 if test -f configure; then
1520     source_path="$(pwd)"
1521     disable source_path_used
1522 else
1523     source_path="$(cd "$source_path"; pwd)"
1524     echo "$source_path" | grep -q '[[:blank:]]' &&
1525         die "Out of tree builds are impossible with whitespace in source path."
1526     test -e "$source_path/config.h" &&
1527         die "Out of tree builds are impossible with config.h in source dir."
1528 fi
1529
1530 for v in "$@"; do
1531     r=${v#*=}
1532     l=${v%"$r"}
1533     r=$(sh_quote "$r")
1534     FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1535 done
1536
1537 find_things(){
1538     thing=$1
1539     pattern=$2
1540     file=$source_path/$3
1541     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1542 }
1543
1544 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1545 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1546 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1547 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1548 BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1549 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1550 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1551 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1552 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1553 PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1554 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1555
1556 for n in $COMPONENT_LIST; do
1557     v=$(toupper ${n%s})_LIST
1558     eval enable \$$v
1559     eval ${n}_if_any="\$$v"
1560 done
1561
1562 enable $ARCH_EXT_LIST
1563
1564 die_unknown(){
1565     echo "Unknown option \"$1\"."
1566     echo "See $0 --help for available options."
1567     exit 1
1568 }
1569
1570 show_list() {
1571     suffix=_$1
1572     shift
1573     echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1574     exit 0
1575 }
1576
1577 for opt do
1578     optval="${opt#*=}"
1579     case "$opt" in
1580     --extra-ldflags=*) add_ldflags $optval
1581     ;;
1582     --extra-libs=*) add_extralibs $optval
1583     ;;
1584     --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1585     ;;
1586     --enable-debug=*) debuglevel="$optval"
1587     ;;
1588     --disable-everything)
1589     map 'eval disable \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1590     ;;
1591     --enable-*=*|--disable-*=*)
1592     eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1593     is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1594     eval list=\$$(toupper $thing)_LIST
1595     name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1596     $action $(filter "$name" $list)
1597     ;;
1598     --enable-?*|--disable-?*)
1599     eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1600     if is_in $option $COMPONENT_LIST; then
1601         test $action = disable && action=unset
1602         eval $action \$$(toupper ${option%s})_LIST
1603     elif is_in $option $CMDLINE_SELECT; then
1604         $action $option
1605     else
1606         die_unknown $opt
1607     fi
1608     ;;
1609     --list-*)
1610         NAME="${opt#--list-}"
1611         is_in $NAME $COMPONENT_LIST || die_unknown $opt
1612         NAME=${NAME%s}
1613         eval show_list $NAME \$$(toupper $NAME)_LIST
1614     ;;
1615     --help|-h) show_help
1616     ;;
1617     *)
1618     optname="${opt%%=*}"
1619     optname="${optname#--}"
1620     optname=$(echo "$optname" | sed 's/-/_/g')
1621     if is_in $optname $CMDLINE_SET; then
1622         eval $optname='$optval'
1623     elif is_in $optname $CMDLINE_APPEND; then
1624         append $optname "$optval"
1625     else
1626          die_unknown $opt
1627     fi
1628     ;;
1629     esac
1630 done
1631
1632 disabled logging && logfile=/dev/null
1633
1634 echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1635 set >> $logfile
1636
1637 test -n "$cross_prefix" && enable cross_compile
1638
1639 if enabled cross_compile; then
1640     test -n "$arch" && test -n "$target_os" ||
1641         die "Must specify target arch and OS when cross-compiling"
1642 fi
1643
1644 set_default arch target_os
1645
1646 ar_default="${cross_prefix}${ar_default}"
1647 cc_default="${cross_prefix}${cc_default}"
1648 nm_default="${cross_prefix}${nm_default}"
1649 ranlib="${cross_prefix}${ranlib}"
1650 strip_default="${cross_prefix}${strip_default}"
1651
1652 sysinclude_default="${sysroot}/usr/include"
1653
1654 set_default cc nm strip sysinclude
1655 enabled cross_compile || host_cc_default=$cc
1656 set_default host_cc
1657
1658 exesuf() {
1659     case $1 in
1660         mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1661     esac
1662 }
1663
1664 EXESUF=$(exesuf $target_os)
1665 HOSTEXESUF=$(exesuf $host_os)
1666
1667 # set temporary file name
1668 : ${TMPDIR:=$TEMPDIR}
1669 : ${TMPDIR:=$TMP}
1670 : ${TMPDIR:=/tmp}
1671
1672 if ! check_cmd type mktemp; then
1673     # simple replacement for missing mktemp
1674     # NOT SAFE FOR GENERAL USE
1675     mktemp(){
1676         echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1677     }
1678 fi
1679
1680 tmpfile(){
1681     tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1682         (set -C; exec > $tmp) 2>/dev/null ||
1683         die "Unable to create temporary file in $TMPDIR."
1684     append TMPFILES $tmp
1685     eval $1=$tmp
1686 }
1687
1688 trap 'rm -f -- $TMPFILES' EXIT
1689 trap exit HUP INT TERM
1690
1691 tmpfile TMPC  .c
1692 tmpfile TMPE  $EXESUF
1693 tmpfile TMPH  .h
1694 tmpfile TMPO  .o
1695 tmpfile TMPS  .S
1696 tmpfile TMPV  .ver
1697 tmpfile TMPSH .sh
1698
1699 unset -f mktemp
1700
1701 # make sure we can execute files in $TMPDIR
1702 cat > $TMPSH 2>> $logfile <<EOF
1703 #! /bin/sh
1704 EOF
1705 chmod +x $TMPSH >> $logfile 2>&1
1706 if ! $TMPSH >> $logfile 2>&1; then
1707     cat <<EOF
1708 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1709 variable to another directory and make sure that it is not mounted noexec.
1710 EOF
1711     die "Sanity test failed."
1712 fi
1713
1714 filter_cflags=echo
1715 filter_cppflags=echo
1716 filter_asflags=echo
1717
1718 if   $cc -v 2>&1 | grep -qi ^gcc; then
1719     cc_type=gcc
1720     cc_version=__VERSION__
1721     if ! $cc -dumpversion | grep -q '^2\.'; then
1722         CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1723         AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1724     fi
1725     speed_cflags='-O3'
1726     size_cflags='-Os'
1727 elif $cc --version 2>/dev/null | grep -q Intel; then
1728     cc_type=icc
1729     cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1730     CC_DEPFLAGS='-MMD'
1731     AS_DEPFLAGS='-MMD'
1732     speed_cflags='-O3'
1733     size_cflags='-Os'
1734     noopt_cflags='-O1'
1735 elif $cc -v 2>&1 | grep -q xlc; then
1736     cc_type=xlc
1737     cc_version="AV_STRINGIFY(__IBMC__)"
1738     speed_cflags='-O5'
1739     size_cflags='-O5 -qcompact'
1740 elif $cc -V 2>/dev/null | grep -q Compaq; then
1741     cc_type=ccc
1742     cc_version="AV_STRINGIFY(__DECC_VER)"
1743     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1744     debuglevel=3
1745     add_ldflags -Wl,-z,now # calls to libots crash without this
1746     speed_cflags='-fast'
1747     size_cflags='-O1'
1748 elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1749     test -d "$sysroot" || die "No valid sysroot specified."
1750     cc_type=armcc
1751     cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1752     armcc_conf="$PWD/armcc.conf"
1753     $cc --arm_linux_configure                 \
1754         --arm_linux_config_file="$armcc_conf" \
1755         --configure_sysroot="$sysroot"        \
1756         --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1757         die "Error creating armcc configuration file."
1758     cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1759     as_default="${cross_prefix}gcc"
1760     CC_DEPFLAGS='-MMD'
1761     AS_DEPFLAGS='-MMD'
1762     speed_cflags='-O3'
1763     size_cflags='-Os'
1764 elif $cc -version 2>/dev/null | grep -q TMS470; then
1765     cc_type=tms470
1766     cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1767     cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1768     CC_O='-fr=$(@D)'
1769     as_default="${cross_prefix}gcc"
1770     ld_default="${cross_prefix}gcc"
1771     TMPO=$(basename $TMPC .c).o
1772     append TMPFILES $TMPO
1773     add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1774     CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1775     AS_DEPFLAGS='-MMD'
1776     speed_cflags='-O3 -mf=5'
1777     size_cflags='-O3 -mf=2'
1778     filter_cflags=tms470_flags
1779     tms470_flags(){
1780         for flag; do
1781             case $flag in
1782                 -march=*|-mcpu=*)
1783                     case "${flag#*=}" in
1784                         armv7-a|cortex-a*)      echo -mv=7a8 ;;
1785                         armv7-r|cortex-r*)      echo -mv=7r4 ;;
1786                         armv7-m|cortex-m*)      echo -mv=7m3 ;;
1787                         armv6*|arm11*)          echo -mv=6   ;;
1788                         armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1789                                                 echo -mv=5e  ;;
1790                         armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1791                     esac
1792                     ;;
1793                 -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1794                 -mfpu=vfp)      echo --float_support=vfpv2        ;;
1795                 -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1796                 -msoft-float)   echo --float_support=vfplib       ;;
1797                 -O[0-3]|-mf=*)  echo $flag                        ;;
1798                 -g)             echo -g -mn                       ;;
1799                 -pds=*)         echo $flag                        ;;
1800             esac
1801         done
1802     }
1803 elif $cc -v 2>&1 | grep -q clang; then
1804     cc_type=clang
1805     cc_version=__VERSION__
1806     CC_DEPFLAGS='-MMD'
1807     AS_DEPFLAGS='-MMD'
1808     speed_cflags='-O3'
1809     size_cflags='-Os'
1810 elif $cc -V 2>&1 | grep -q Sun; then
1811     cc_type=suncc
1812     cc_version="AV_STRINGIFY(__SUNPRO_C)"
1813     DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1814     DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1815     speed_cflags='-O5'
1816     size_cflags='-O5 -xspace'
1817     filter_cflags=suncc_flags
1818     suncc_flags(){
1819         for flag; do
1820             case $flag in
1821                 -march=*|-mcpu=*)
1822                     case "${flag#*=}" in
1823                         native)                   echo -xtarget=native       ;;
1824                         v9)                       echo -xarch=sparc          ;;
1825                         ultrasparc)               echo -xarch=sparcvis       ;;
1826                         ultrasparc3|niagara*)     echo -xarch=sparcvis2      ;;
1827                         i586|pentium)             echo -xchip=pentium        ;;
1828                         i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1829                         pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1830                         pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1831                         pentium4*)          echo -xtarget=pentium4           ;;
1832                         prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1833                         *-sse3)             echo -xarch=sse3                 ;;
1834                         core2)              echo -xarch=ssse3 -xchip=core2   ;;
1835                         amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1836                         athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1837                         k8|opteron|athlon64|athlon-fx)
1838                                                   echo -xarch=sse2a          ;;
1839                         athlon*)                  echo -xarch=pentium_proa   ;;
1840                     esac
1841                     ;;
1842                 -std=c99)             echo -xc99              ;;
1843                 -fomit-frame-pointer) echo -xregs=frameptr    ;;
1844                 -fPIC)                echo -KPIC -xcode=pic32 ;;
1845                 -W*,*)                echo $flag              ;;
1846                 -f*-*|-W*)                                    ;;
1847                 *)                    echo $flag              ;;
1848             esac
1849         done
1850     }
1851 fi
1852
1853 test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1854
1855 : ${as_default:=$cc}
1856 : ${dep_cc_default:=$cc}
1857 : ${ld_default:=$cc}
1858 set_default ar as dep_cc ld
1859
1860 test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1861 test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1862
1863 add_cflags $extra_cflags
1864 add_asflags $extra_cflags
1865
1866 if test -n "$sysroot"; then
1867     case "$cc_type" in
1868         gcc)
1869             add_cppflags --sysroot="$sysroot"
1870             add_ldflags --sysroot="$sysroot"
1871         ;;
1872         tms470)
1873             add_cppflags -I"$sysinclude"
1874             add_ldflags  --sysroot="$sysroot"
1875         ;;
1876         clang)
1877             add_cppflags -isysroot "$sysroot"
1878             add_ldflags -isysroot "$sysroot"
1879         ;;
1880     esac
1881 fi
1882
1883 if test "$cpu" = host; then
1884     enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1885
1886     case "$cc_type" in
1887         gcc)
1888             check_native(){
1889                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1890                 sed -n "/$1=/{
1891                             s/.*$1=\\([^ ]*\\).*/\\1/
1892                             p
1893                             q
1894                         }" $TMPE
1895             }
1896             cpu=$(check_native -march || check_native -mcpu)
1897         ;;
1898     esac
1899
1900     test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1901 fi
1902
1903 # Deal with common $arch aliases
1904 case "$arch" in
1905     arm*)
1906         arch="arm"
1907     ;;
1908     mips|mipsel|IP*)
1909         arch="mips"
1910     ;;
1911     mips64*)
1912         arch="mips"
1913         subarch="mips64"
1914     ;;
1915     parisc|hppa)
1916         arch="parisc"
1917     ;;
1918     parisc64|hppa64)
1919         arch="parisc"
1920         subarch="parisc64"
1921     ;;
1922     "Power Macintosh"|ppc|powerpc)
1923         arch="ppc"
1924     ;;
1925     ppc64|powerpc64)
1926         arch="ppc"
1927         subarch="ppc64"
1928     ;;
1929     s390|s390x)
1930         arch="s390"
1931     ;;
1932     sh4|sh)
1933         arch="sh4"
1934     ;;
1935     sun4u|sparc64)
1936         arch="sparc"
1937         subarch="sparc64"
1938     ;;
1939     i[3-6]86|i86pc|BePC|x86_64|amd64)
1940         arch="x86"
1941     ;;
1942 esac
1943
1944 is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1945 enable $arch
1946
1947 # Add processor-specific flags
1948 if test "$cpu" = generic; then
1949     : do nothing
1950 elif enabled ppc; then
1951
1952     case $(tolower $cpu) in
1953         601|ppc601|powerpc601)
1954             cpuflags="-mcpu=601"
1955             disable altivec
1956         ;;
1957         603*|ppc603*|powerpc603*)
1958             cpuflags="-mcpu=603"
1959             disable altivec
1960         ;;
1961         604*|ppc604*|powerpc604*)
1962             cpuflags="-mcpu=604"
1963             disable altivec
1964         ;;
1965         g3|75*|ppc75*|powerpc75*)
1966             cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1967             disable altivec
1968         ;;
1969         g4|745*|ppc745*|powerpc745*)
1970             cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1971         ;;
1972         74*|ppc74*|powerpc74*)
1973             cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1974         ;;
1975         g5|970|ppc970|powerpc970|power4*)
1976             cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1977         ;;
1978         cell)
1979             cpuflags="-mcpu=cell"
1980             enable ldbrx
1981         ;;
1982         e500v2)
1983             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
1984             disable altivec
1985         ;;
1986         e500)
1987             cpuflags="-mcpu=8540 -mhard-float"
1988             disable altivec
1989         ;;
1990     esac
1991
1992 elif enabled x86; then
1993
1994     case $cpu in
1995         i[345]86|pentium)
1996             cpuflags="-march=$cpu"
1997             disable mmx
1998         ;;
1999         # targets that do NOT support conditional mov (cmov)
2000         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2001             cpuflags="-march=$cpu"
2002             disable cmov
2003         ;;
2004         # targets that do support conditional mov (cmov)
2005         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
2006             cpuflags="-march=$cpu"
2007             enable cmov
2008             enable fast_cmov
2009         ;;
2010         # targets that do support conditional mov but on which it's slow
2011         pentium4|pentium4m|prescott|nocona)
2012             cpuflags="-march=$cpu"
2013             enable cmov
2014             disable fast_cmov
2015         ;;
2016     esac
2017
2018 elif enabled sparc; then
2019
2020     case $cpu in
2021         sparc64)
2022             cpuflags="-mcpu=v9"
2023         ;;
2024     esac
2025
2026 elif enabled arm; then
2027
2028     case $cpu in
2029         armv*)
2030             cpuflags="-march=$cpu"
2031         ;;
2032         *)
2033             cpuflags="-mcpu=$cpu"
2034         ;;
2035     esac
2036
2037 elif enabled alpha; then
2038
2039     enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2040
2041 elif enabled bfin; then
2042
2043     cpuflags="-mcpu=$cpu"
2044
2045 elif enabled mips; then
2046
2047     cpuflags="-march=$cpu"
2048
2049 elif enabled avr32; then
2050
2051     case $cpu in
2052         ap7[02]0[0-2])
2053             subarch="avr32_ap"
2054             cpuflags="-mpart=$cpu"
2055         ;;
2056         ap)
2057             subarch="avr32_ap"
2058             cpuflags="-march=$cpu"
2059         ;;
2060         uc3[ab]*)
2061             subarch="avr32_uc"
2062             cpuflags="-mcpu=$cpu"
2063         ;;
2064         uc)
2065             subarch="avr32_uc"
2066             cpuflags="-march=$cpu"
2067         ;;
2068     esac
2069
2070 fi
2071
2072 add_cflags $cpuflags
2073 add_asflags $cpuflags
2074
2075 # compiler sanity check
2076 check_exec <<EOF
2077 int main(void){ return 0; }
2078 EOF
2079 if test "$?" != 0; then
2080     echo "$cc is unable to create an executable file."
2081     if test -z "$cross_prefix" && ! enabled cross_compile ; then
2082         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2083         echo "Only do this if you know what cross compiling means."
2084     fi
2085     die "C compiler test failed."
2086 fi
2087
2088 add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2089 check_cflags -std=c99
2090 check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2091 #include <stdlib.h>
2092 EOF
2093 check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2094 #include <stdlib.h>
2095 EOF
2096
2097 check_host_cflags -std=c99
2098
2099 case "$arch" in
2100     alpha|ia64|mips|parisc|sparc)
2101         spic=$shared
2102     ;;
2103     x86)
2104         subarch="x86_32"
2105         check_cc <<EOF && subarch="x86_64"
2106         int test[(int)sizeof(char*) - 7];
2107 EOF
2108         if test "$subarch" = "x86_64"; then
2109             spic=$shared
2110         fi
2111     ;;
2112 esac
2113
2114 enable $subarch
2115 enabled spic && enable pic
2116
2117 # OS specific
2118 case $target_os in
2119     beos|haiku|zeta)
2120         prefix_default="$HOME/config"
2121         # 3 gcc releases known for BeOS, each with ugly bugs
2122         gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
2123         case "$gcc_version" in
2124           2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
2125             disable mmx
2126             ;;
2127           *20010315*) echo "BeBits gcc"
2128             add_cflags -fno-expensive-optimizations
2129             ;;
2130         esac
2131         SHFLAGS=-nostart
2132         # enable BeOS things
2133         enable audio_beos
2134         # no need for libm, but the inet stuff
2135         # Check for BONE
2136         # XXX: actually should check for NOT net_server
2137         if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
2138             network_extralibs="-lbind -lsocket"
2139         else
2140             enable beos_netserver
2141             network_extralibs="-lnet"
2142         fi ;;
2143     sunos)
2144         FFSERVERLDFLAGS=""
2145         SHFLAGS='-shared -Wl,-h,$$(@F)'
2146         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2147         network_extralibs="-lsocket -lnsl"
2148         add_cppflags -D__EXTENSIONS__
2149         nm_opts='-P -g'
2150         ;;
2151     netbsd)
2152         oss_indev_extralibs="-lossaudio"
2153         oss_outdev_extralibs="-lossaudio"
2154         add_cppflags -D_XOPEN_SOURCE=600
2155         ;;
2156     openbsd)
2157         enable malloc_aligned
2158         # On OpenBSD 4.5. the compiler does not use PIC unless
2159         # explicitly using -fPIC. FFmpeg builds fine without PIC,
2160         # however the generated executable will not do anything
2161         # (simply quits with exit-code 1, no crash, no output).
2162         # Thus explicitly enable PIC here.
2163         enable pic
2164         SHFLAGS='-shared'
2165         oss_indev_extralibs="-lossaudio"
2166         oss_outdev_extralibs="-lossaudio"
2167         ;;
2168     freebsd|dragonfly)
2169         enable malloc_aligned
2170         ;;
2171     bsd/os)
2172         osextralibs="-lpoll -lgnugetopt"
2173         strip="strip -d"
2174         ;;
2175     darwin)
2176         enable malloc_aligned
2177         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2178         strip="strip -x"
2179         FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2180         SLIBSUF=".dylib"
2181         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2182         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2183         FFSERVERLDFLAGS=-Wl,-bind_at_load
2184         objformat="macho"
2185         enabled x86_64 && objformat="macho64"
2186         enabled_any pic shared ||
2187             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2188         ;;
2189     mingw32*)
2190         if test $target_os = "mingw32ce"; then
2191             disable network
2192         else
2193             target_os=mingw32
2194         fi
2195         LIBTARGET=i386
2196         if enabled x86_64; then
2197             enable malloc_aligned
2198             LIBTARGET=x64
2199         elif enabled arm; then
2200             LIBTARGET=arm
2201         fi
2202         shlibdir_default="$bindir_default"
2203         disable ffserver
2204         SLIBPREF=""
2205         SLIBSUF=".dll"
2206         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2207         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2208         SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2209         SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2210             install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2211             install -d "$(LIBDIR)"; \
2212             install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2213         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2214         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
2215         objformat="win32"
2216         enable dos_paths
2217         check_cflags -fno-common
2218         if ! enabled x86_64; then
2219             check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2220                 die "ERROR: MinGW runtime version must be >= 3.15."
2221             enabled_any avisynth vfwcap_indev &&
2222                 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2223                   die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2224         fi
2225         ;;
2226     cygwin*)
2227         target_os=cygwin
2228         shlibdir_default="$bindir_default"
2229         SLIBPREF="cyg"
2230         SLIBSUF=".dll"
2231         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2232         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2233         SHFLAGS='-shared -Wl,--enable-auto-image-base'
2234         objformat="win32"
2235         enable dos_paths
2236         check_cflags -fno-common
2237         ;;
2238     *-dos|freedos|opendos)
2239         disable ffplay ffserver
2240         disable $INDEV_LIST $OUTDEV_LIST
2241         network_extralibs="-lsocket"
2242         objformat="coff"
2243         enable dos_paths
2244         ;;
2245     linux)
2246         enable dv1394
2247         ;;
2248     irix*)
2249         target_os=irix
2250         ranlib="echo ignoring ranlib"
2251         ;;
2252     os/2*)
2253         strip="lxlite"
2254         ln_s="cp -f"
2255         FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2256         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2257         FFSERVERLDFLAGS=""
2258         LIBSUF="_s.a"
2259         SLIBPREF=""
2260         SLIBSUF=".dll"
2261         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2262         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2263         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2264           echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2265           echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2266           echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2267           echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2268           emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2269         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2270           emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2271         SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2272         SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2273         enable dos_paths
2274         ;;
2275     gnu/kfreebsd)
2276         ;;
2277     gnu)
2278         ;;
2279     none)
2280         ;;
2281     *)
2282         die "Unknown OS '$target_os'."
2283         ;;
2284 esac
2285
2286 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2287
2288 set_default $PATHS_LIST
2289
2290 add_extralibs $osextralibs
2291
2292 # Combine FFLDFLAGS and the LDFLAGS environment variable.
2293 LDFLAGS="$FFLDFLAGS $LDFLAGS"
2294
2295 # we need to build at least one lib type
2296 if ! enabled_any static shared; then
2297     cat <<EOF
2298 At least one library type must be built.
2299 Specify --enable-static to build the static libraries or --enable-shared to
2300 build the shared libraries as well. To only build the shared libraries specify
2301 --disable-static in addition to --enable-shared.
2302 EOF
2303     exit 1;
2304 fi
2305
2306 disabled static && LIBNAME=""
2307
2308 if enabled_any libfaad libfaadbin ; then
2309     if check_header faad.h; then
2310         check_cc <<EOF
2311 #include <faad.h>
2312 #ifndef FAAD2_VERSION
2313 ok faad1
2314 #endif
2315 int main(void) { return 0; }
2316 EOF
2317         test $? = 0 && enable libfaad2
2318     else
2319         die "FAAD test failed."
2320     fi
2321 fi
2322
2323
2324 die_license_disabled() {
2325     enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2326 }
2327
2328 die_license_disabled gpl libfaad2
2329 die_license_disabled gpl libx264
2330 die_license_disabled gpl libxvid
2331 die_license_disabled gpl postproc
2332 die_license_disabled gpl x11grab
2333
2334 die_license_disabled nonfree libfaac
2335
2336 die_license_disabled version3 libopencore_amrnb
2337 die_license_disabled version3 libopencore_amrwb
2338
2339 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2340
2341 check_deps $ARCH_EXT_LIST
2342
2343 disabled optimizations || check_cflags -fomit-frame-pointer
2344
2345 enable_pic() {
2346     enable pic
2347     add_cppflags -DPIC
2348     add_cflags   -fPIC
2349     add_asflags  -fPIC
2350 }
2351
2352 enabled pic && enable_pic
2353
2354 check_cc <<EOF || die "Symbol mangling check failed."
2355 int ff_extern;
2356 EOF
2357 sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2358 extern_prefix=${sym%%ff_extern*}
2359
2360 check_cc <<EOF && enable inline_asm
2361 void foo(void) { __asm__ volatile ("" ::); }
2362 EOF
2363
2364 _restrict=
2365 for restrict_keyword in restrict __restrict__ __restrict; do
2366     check_cc <<EOF && _restrict=$restrict_keyword && break
2367 void foo(char * $restrict_keyword p);
2368 EOF
2369 done
2370
2371 check_cc <<EOF && enable attribute_packed
2372 struct { int x; } __attribute__((packed)) x;
2373 EOF
2374
2375 check_cc <<EOF && enable attribute_may_alias
2376 union { int x; } __attribute__((may_alias)) x;
2377 EOF
2378
2379 check_cc <<EOF || die "endian test failed"
2380 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2381 EOF
2382 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2383
2384 if enabled alpha; then
2385
2386     check_cflags -mieee
2387
2388 elif enabled arm; then
2389
2390     check_cflags -marm
2391
2392     check_ld <<EOF && enable vfp_args
2393 __asm__ (".eabi_attribute 28, 1");
2394 int main(void) { return 0; }
2395 EOF
2396
2397     # We have to check if pld is a nop and disable it.
2398     check_asm pld '"pld [r0]"'
2399
2400     enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2401     enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2402     enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2403     enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2404     enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2405     enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2406
2407     enabled_all armv6t2 shared !pic && enable_pic
2408
2409 elif enabled ia64; then
2410
2411     # HACK: currently fails to build if .bss is > 4MB and shared libs are built
2412     enabled shared && enable_weak hardcoded_tables
2413
2414 elif enabled mips; then
2415
2416     check_asm loongson '"dmult.g $1, $2, $3"'
2417     enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2418
2419 elif enabled ppc; then
2420
2421     enable local_aligned_8 local_aligned_16
2422
2423     check_asm dcbzl     '"dcbzl 0, 1"'
2424     check_asm ppc4xx    '"maclhw r10, r11, r12"'
2425     check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2426
2427     # AltiVec flags: The FSF version of GCC differs from the Apple version
2428     if enabled altivec; then
2429         check_cflags -maltivec -mabi=altivec &&
2430         { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2431         check_cflags -faltivec
2432
2433         # check if our compiler supports Motorola AltiVec C API
2434         check_cc <<EOF || disable altivec
2435 $inc_altivec_h
2436 int main(void) {
2437     vector signed int v1, v2, v3;
2438     v1 = vec_add(v2,v3);
2439     return 0;
2440 }
2441 EOF
2442
2443         # check if our compiler supports braces for vector declarations
2444         check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2445 $inc_altivec_h
2446 int main (void) { (vector int) {1}; return 0; }
2447 EOF
2448     fi
2449
2450 elif enabled sparc; then
2451
2452     enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2453         add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2454
2455 elif enabled x86; then
2456
2457     enable local_aligned_8 local_aligned_16
2458
2459     # check whether EBP is available on x86
2460     # As 'i' is stored on the stack, this program will crash
2461     # if the base pointer is used to access it because the
2462     # base pointer is cleared in the inline assembly code.
2463     check_exec_crash <<EOF && enable ebp_available
2464     volatile int i=0;
2465     __asm__ volatile (
2466         "xorl %%ebp, %%ebp"
2467     ::: "%ebp");
2468     return i;
2469 EOF
2470
2471     # check whether EBX is available on x86
2472     check_asm ebx_available '""::"b"(0)' &&
2473         check_asm ebx_available '"":::"%ebx"'
2474
2475     # check whether more than 10 operands are supported
2476     check_cc <<EOF && enable ten_operands
2477 int main(void) {
2478     int x=0;
2479     __asm__ volatile(
2480         ""
2481         :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2482     );
2483     return 0;
2484 }
2485 EOF
2486
2487     # check whether binutils is new enough to compile SSSE3/MMX2
2488     enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2489     enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2490
2491     check_asm bswap '"bswap %%eax" ::: "%eax"'
2492
2493     YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2494     enabled     x86_64        && append YASMFLAGS "-m amd64"
2495     enabled     pic           && append YASMFLAGS "-DPIC"
2496     test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2497     case "$objformat" in
2498         elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2499     esac
2500     disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2501
2502     case "$cpu" in
2503         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2504             disable fast_clz
2505         ;;
2506     esac
2507
2508 fi
2509
2510 if check_func dlopen; then
2511     ldl=
2512 elif check_func dlopen -ldl; then
2513     ldl=-ldl
2514 fi
2515
2516 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2517 check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2518
2519 check_func  fork
2520 check_func  getaddrinfo $network_extralibs
2521 check_func  gethrtime
2522 check_func  getrusage
2523 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2524 check_func  inet_aton $network_extralibs
2525 check_func  isatty
2526 check_func  ${malloc_prefix}memalign            && enable memalign
2527 check_func  mkstemp
2528 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2529 check_func  setrlimit
2530 check_func  strerror_r
2531 check_func_headers io.h setmode
2532 check_func_headers lzo/lzo1x.h lzo1x_999_compress
2533 check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2534 check_func_headers windows.h GetProcessTimes
2535 check_func_headers windows.h VirtualAlloc
2536
2537 check_header conio.h
2538 check_header dlfcn.h
2539 check_header dxva2api.h
2540 check_header malloc.h
2541 check_header poll.h
2542 check_header sys/mman.h
2543 check_header sys/resource.h
2544 check_header sys/select.h
2545 check_header termios.h
2546 check_header vdpau/vdpau.h
2547 check_header vdpau/vdpau_x11.h
2548 check_header X11/extensions/XvMClib.h
2549
2550 check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2551
2552 if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2553      enabled_any $need_memalign ; then
2554     die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2555 fi
2556
2557 disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2558 disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2559
2560 # check for some common methods of building with pthread support
2561 # do this before the optional library checks as some of them require pthreads
2562 if enabled pthreads; then
2563     if check_func pthread_create; then
2564         :
2565     elif check_func pthread_create -pthread; then
2566         add_cflags -pthread
2567         add_extralibs -pthread
2568     elif check_func pthread_create -pthreads; then
2569         add_cflags -pthreads
2570         add_extralibs -pthreads
2571     elif check_func pthread_create -lpthreadGC2; then
2572         add_extralibs -lpthreadGC2
2573     elif ! check_lib pthread.h pthread_create -lpthread; then
2574         die "ERROR: can't find pthreads library"
2575     fi
2576 fi
2577
2578 for thread in $THREADS_LIST; do
2579     if enabled $thread; then
2580         test -n "$thread_type" &&
2581             die "ERROR: Only one thread type must be selected." ||
2582             thread_type="$thread"
2583     fi
2584 done
2585
2586 check_lib math.h sin -lm
2587 check_lib va/va.h vaInitialize -lva
2588
2589 check_mathfunc exp2
2590 check_mathfunc exp2f
2591 check_mathfunc llrint
2592 check_mathfunc llrintf
2593 check_mathfunc log2
2594 check_mathfunc log2f
2595 check_mathfunc lrint
2596 check_mathfunc lrintf
2597 check_mathfunc round
2598 check_mathfunc roundf
2599 check_mathfunc truncf
2600
2601 # these are off by default, so fail if requested and not available
2602 enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2603 enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2604                       require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2605                       require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2606 enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2607 enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2608 enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2609 enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2610 enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2611 enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2612 enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2613 enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2614 enabled librtmp    && require  librtmp librtmp/rtmp.h RTMP_Init -lrtmp
2615 enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2616                            require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2617 enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2618 enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2619 enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2620 enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2621                       { check_cpp_condition x264.h "X264_BUILD >= 83" ||
2622                         die "ERROR: libx264 version must be >= 0.83."; }
2623 enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2624 enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2625
2626 # libdc1394 check
2627 if enabled libdc1394; then
2628     { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2629         enable libdc1394_2; } ||
2630     { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2631         enable libdc1394_1; } ||
2632     die "ERROR: No version of libdc1394 found "
2633 fi
2634
2635 SDL_CONFIG="${cross_prefix}sdl-config"
2636 if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2637     sdl_cflags=$("${SDL_CONFIG}" --cflags)
2638     sdl_libs=$("${SDL_CONFIG}" --libs)
2639     check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2640     check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2641     enable sdl &&
2642     check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2643 fi
2644
2645 texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2646
2647 if enabled network; then
2648     check_type "sys/types.h sys/socket.h" socklen_t
2649     check_type netdb.h "struct addrinfo"
2650     check_type netinet/in.h "struct ipv6_mreq"
2651     check_type netinet/in.h "struct sockaddr_in6"
2652     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2653     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2654     # Prefer arpa/inet.h over winsock2
2655     if check_header arpa/inet.h ; then
2656         check_func closesocket
2657     elif check_header winsock2.h ; then
2658         check_func_headers winsock2.h closesocket -lws2 && \
2659             network_extralibs="-lws2" || \
2660         { check_func_headers winsock2.h closesocket -lws2_32 && \
2661             network_extralibs="-lws2_32"; }
2662         check_type ws2tcpip.h socklen_t
2663         check_type ws2tcpip.h "struct addrinfo"
2664         check_type ws2tcpip.h "struct ipv6_mreq"
2665         check_type ws2tcpip.h "struct sockaddr_in6"
2666         check_type ws2tcpip.h "struct sockaddr_storage"
2667         check_struct winsock2.h "struct sockaddr" sa_len
2668     else
2669         disable network
2670     fi
2671 fi
2672
2673 check_header linux/videodev.h
2674 check_header linux/videodev2.h
2675 check_header sys/videoio.h
2676
2677 check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2678
2679 # check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2680 { check_header dev/bktr/ioctl_meteor.h &&
2681   check_header dev/bktr/ioctl_bt848.h; } ||
2682 { check_header machine/ioctl_meteor.h &&
2683   check_header machine/ioctl_bt848.h; } ||
2684 { check_header dev/video/meteor/ioctl_meteor.h &&
2685   check_header dev/video/bktr/ioctl_bt848.h; } ||
2686 check_header dev/ic/bt8xx.h
2687
2688 check_header sys/soundcard.h
2689 check_header soundcard.h
2690
2691 enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2692
2693 enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2694
2695 enabled x11grab                         &&
2696 check_header X11/Xlib.h                 &&
2697 check_header X11/extensions/XShm.h      &&
2698 check_header X11/extensions/Xfixes.h    &&
2699 check_func XOpenDisplay -lX11           &&
2700 check_func XShmCreateImage -lX11 -lXext &&
2701 check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2702
2703 if ! disabled vdpau && enabled vdpau_vdpau_h; then
2704 check_cpp_condition \
2705     vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2706     { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2707       disable vdpau; }
2708 fi
2709
2710 enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2711
2712 # add some useful compiler flags if supported
2713 check_cflags -Wdeclaration-after-statement
2714 check_cflags -Wall
2715 check_cflags -Wno-switch
2716 check_cflags -Wdisabled-optimization
2717 check_cflags -Wpointer-arith
2718 check_cflags -Wredundant-decls
2719 check_cflags -Wno-pointer-sign
2720 check_cflags -Wcast-qual
2721 check_cflags -Wwrite-strings
2722 check_cflags -Wtype-limits
2723 check_cflags -Wundef
2724 check_cflags -Wmissing-prototypes
2725 enabled extra_warnings && check_cflags -Winline
2726
2727 # add some linker flags
2728 check_ldflags -Wl,--warn-common
2729 check_ldflags -Wl,--as-needed
2730 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'
2731 check_ldflags -Wl,-Bsymbolic
2732
2733 echo "X{};" > $TMPV
2734 test_ldflags -Wl,--version-script,$TMPV &&
2735     append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2736
2737 if enabled small; then
2738     add_cflags $size_cflags
2739     optimizations="small"
2740 elif enabled optimizations; then
2741     add_cflags $speed_cflags
2742 else
2743     add_cflags $noopt_cflags
2744 fi
2745 check_cflags -fno-math-errno
2746 check_cflags -fno-signed-zeros
2747
2748 if enabled icc; then
2749     # Just warnings, no remarks
2750     check_cflags -w1
2751     # -wd: Disable following warnings
2752     # 144, 167, 556: -Wno-pointer-sign
2753     # 10006: ignoring unknown option -fno-signed-zeros
2754     # 10156: ignoring option '-W'; no argument required
2755     check_cflags -wd144,167,556,10006,10156
2756     # 11030: Warning unknown option --as-needed
2757     # 10156: ignoring option '-export'; no argument required
2758     check_ldflags -wd10156,11030
2759     # Allow to compile with optimizations
2760     check_ldflags -march=$cpu
2761     # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2762     enable ebp_available
2763 elif enabled ccc; then
2764     # disable some annoying warnings
2765     add_cflags -msg_disable cvtu32to64
2766     add_cflags -msg_disable embedcomment
2767     add_cflags -msg_disable needconstext
2768     add_cflags -msg_disable nomainieee
2769     add_cflags -msg_disable ptrmismatch1
2770     add_cflags -msg_disable unreachcode
2771 elif enabled gcc; then
2772     check_cflags -fno-tree-vectorize
2773     check_cflags -Werror=implicit
2774     check_cflags -Werror=missing-prototypes
2775 elif enabled clang; then
2776     check_cflags -Qunused-arguments
2777 elif enabled armcc; then
2778     # 2523: use of inline assembler is deprecated
2779     add_cflags -Wrvct,--diag_suppress=2523
2780     add_cflags -Wrvct,--diag_suppress=1207
2781 elif enabled tms470; then
2782     add_cflags -pds=824 -pds=837
2783 fi
2784
2785 if enabled gprof; then
2786     add_cflags  -p
2787     add_ldflags -p
2788 fi
2789
2790 # Find out if the .align argument is a power of two or not.
2791 check_asm asmalign_pot '".align 3"'
2792
2793 enabled_any $THREADS_LIST      && enable threads
2794
2795 check_deps $CONFIG_LIST       \
2796            $CONFIG_EXTRA      \
2797            $HAVE_LIST         \
2798            $DECODER_LIST      \
2799            $ENCODER_LIST      \
2800            $HWACCEL_LIST      \
2801            $PARSER_LIST       \
2802            $BSF_LIST          \
2803            $DEMUXER_LIST      \
2804            $MUXER_LIST        \
2805            $FILTER_LIST       \
2806            $INDEV_LIST        \
2807            $OUTDEV_LIST       \
2808            $PROTOCOL_LIST     \
2809
2810 enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
2811
2812 echo "install prefix            $prefix"
2813 echo "source path               $source_path"
2814 echo "C compiler                $cc"
2815 echo ".align is power-of-two    $asmalign_pot"
2816 echo "ARCH                      $arch ($cpu)"
2817 if test "$build_suffix" != ""; then
2818     echo "build suffix              $build_suffix"
2819 fi
2820 if test "$extra_version" != ""; then
2821     echo "version string suffix     $extra_version"
2822 fi
2823 echo "big-endian                ${bigendian-no}"
2824 echo "runtime cpu detection     ${runtime_cpudetect-no}"
2825 if enabled x86; then
2826     echo "yasm                      ${yasm-no}"
2827     echo "MMX enabled               ${mmx-no}"
2828     echo "MMX2 enabled              ${mmx2-no}"
2829     echo "3DNow! enabled            ${amd3dnow-no}"
2830     echo "3DNow! extended enabled   ${amd3dnowext-no}"
2831     echo "SSE enabled               ${sse-no}"
2832     echo "SSSE3 enabled             ${ssse3-no}"
2833     echo "CMOV enabled              ${cmov-no}"
2834     echo "CMOV is fast              ${fast_cmov-no}"
2835     echo "EBX available             ${ebx_available-no}"
2836     echo "EBP available             ${ebp_available-no}"
2837     echo "10 operands supported     ${ten_operands-no}"
2838 fi
2839 if enabled arm; then
2840     echo "ARMv5TE enabled           ${armv5te-no}"
2841     echo "ARMv6 enabled             ${armv6-no}"
2842     echo "ARMv6T2 enabled           ${armv6t2-no}"
2843     echo "ARM VFP enabled           ${armvfp-no}"
2844     echo "IWMMXT enabled            ${iwmmxt-no}"
2845     echo "NEON enabled              ${neon-no}"
2846 fi
2847 if enabled mips; then
2848     echo "MMI enabled               ${mmi-no}"
2849 fi
2850 if enabled ppc; then
2851     echo "AltiVec enabled           ${altivec-no}"
2852     echo "PPC 4xx optimizations     ${ppc4xx-no}"
2853     echo "dcbzl available           ${dcbzl-no}"
2854     echo "performance report        ${powerpc_perf-no}"
2855 fi
2856 if enabled sparc; then
2857     echo "VIS enabled               ${vis-no}"
2858 fi
2859 echo "gprof enabled             ${gprof-no}"
2860 echo "debug symbols             ${debug-no}"
2861 echo "strip symbols             ${stripping-no}"
2862 echo "optimizations             ${optimizations-no}"
2863 echo "static                    ${static-no}"
2864 echo "shared                    ${shared-no}"
2865 echo "postprocessing support    ${postproc-no}"
2866 echo "new filter support        ${avfilter-no}"
2867 echo "filters using lavformat   ${avfilter_lavf-no}"
2868 echo "network support           ${network-no}"
2869 echo "threading support         ${thread_type-no}"
2870 echo "SDL support               ${sdl-no}"
2871 echo "Sun medialib support      ${mlib-no}"
2872 echo "AVISynth enabled          ${avisynth-no}"
2873 echo "libdc1394 support         ${libdc1394-no}"
2874 echo "libdirac enabled          ${libdirac-no}"
2875 echo "libfaac enabled           ${libfaac-no}"
2876 echo "libfaad enabled           ${libfaad-no}"
2877 echo "libfaad dlopened          ${libfaadbin-no}"
2878 echo "libgsm enabled            ${libgsm-no}"
2879 echo "libmp3lame enabled        ${libmp3lame-no}"
2880 echo "libnut enabled            ${libnut-no}"
2881 echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2882 echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2883 echo "libopenjpeg enabled       ${libopenjpeg-no}"
2884 echo "librtmp enabled           ${librtmp-no}"
2885 echo "libschroedinger enabled   ${libschroedinger-no}"
2886 echo "libspeex enabled          ${libspeex-no}"
2887 echo "libtheora enabled         ${libtheora-no}"
2888 echo "libvorbis enabled         ${libvorbis-no}"
2889 echo "libx264 enabled           ${libx264-no}"
2890 echo "libxvid enabled           ${libxvid-no}"
2891 echo "zlib enabled              ${zlib-no}"
2892 echo "bzlib enabled             ${bzlib-no}"
2893 echo
2894
2895 for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2896     echo "Enabled ${type}s:"
2897     eval list=\$$(toupper $type)_LIST
2898     for part in $list; do
2899         enabled $part && echo ${part%_*}
2900     done | sort | pr -3 -t
2901     echo
2902 done
2903
2904 license="LGPL version 2.1 or later"
2905 if enabled nonfree; then
2906     license="nonfree and unredistributable"
2907 elif enabled gplv3; then
2908     license="GPL version 3 or later"
2909 elif enabled lgplv3; then
2910     license="LGPL version 3 or later"
2911 elif enabled gpl; then
2912     license="GPL version 2 or later"
2913 fi
2914
2915 echo "License: $license"
2916
2917 echo "Creating config.mak and config.h..."
2918
2919 # build tree in object directory if source path is different from current one
2920 if enabled source_path_used; then
2921     DIRS="
2922         doc
2923         libavcodec
2924         libavcodec/$arch
2925         libavdevice
2926         libavfilter
2927         libavformat
2928         libavutil
2929         libavutil/$arch
2930         libpostproc
2931         libswscale
2932         libswscale/$arch
2933         tests
2934         tools
2935     "
2936     FILES="
2937         Makefile
2938         common.mak
2939         subdir.mak
2940         doc/texi2pod.pl
2941         libavcodec/Makefile
2942         libavcodec/${arch}/Makefile
2943         libavdevice/Makefile
2944         libavfilter/Makefile
2945         libavformat/Makefile
2946         libavutil/Makefile
2947         libpostproc/Makefile
2948         libswscale/Makefile
2949     "
2950     map 'mkdir -p $v' $DIRS;
2951     map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
2952 fi
2953
2954 enabled stripping || strip="echo skipping strip"
2955
2956 cat > config.mak <<EOF
2957 # Automatically generated by configure - do not modify!
2958 ifndef FFMPEG_CONFIG_MAK
2959 FFMPEG_CONFIG_MAK=1
2960 FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2961 prefix=$prefix
2962 LIBDIR=\$(DESTDIR)$libdir
2963 SHLIBDIR=\$(DESTDIR)$shlibdir
2964 INCDIR=\$(DESTDIR)$incdir
2965 BINDIR=\$(DESTDIR)$bindir
2966 DATADIR=\$(DESTDIR)$datadir
2967 MANDIR=\$(DESTDIR)$mandir
2968 SRC_PATH="$source_path"
2969 SRC_PATH_BARE=$source_path
2970 BUILD_ROOT="$PWD"
2971 ARCH=$arch
2972 CC=$cc
2973 AS=$as
2974 LD=$ld
2975 DEPCC=$dep_cc
2976 YASM=$yasmexe
2977 YASMDEP=$yasmexe
2978 AR=$ar
2979 RANLIB=$ranlib
2980 CP=cp -p
2981 LN_S=$ln_s
2982 STRIP=$strip
2983 CPPFLAGS=$CPPFLAGS
2984 CFLAGS=$CFLAGS
2985 ASFLAGS=$ASFLAGS
2986 CC_O=$CC_O
2987 LDFLAGS=$LDFLAGS
2988 FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2989 SHFLAGS=$SHFLAGS
2990 YASMFLAGS=$YASMFLAGS
2991 BUILDSUF=$build_suffix
2992 FULLNAME=$FULLNAME
2993 LIBPREF=$LIBPREF
2994 LIBSUF=$LIBSUF
2995 LIBNAME=$LIBNAME
2996 SLIBPREF=$SLIBPREF
2997 SLIBSUF=$SLIBSUF
2998 EXESUF=$EXESUF
2999 EXTRA_VERSION=$extra_version
3000 DEPFLAGS=$DEPFLAGS
3001 CCDEP=$CCDEP
3002 ASDEP=$ASDEP
3003 CC_DEPFLAGS=$CC_DEPFLAGS
3004 AS_DEPFLAGS=$AS_DEPFLAGS
3005 HOSTCC=$host_cc
3006 HOSTCFLAGS=$host_cflags
3007 HOSTEXESUF=$HOSTEXESUF
3008 HOSTLDFLAGS=$host_ldflags
3009 HOSTLIBS=$host_libs
3010 TARGET_EXEC=$target_exec
3011 TARGET_PATH=$target_path
3012 SDL_LIBS=$sdl_libs
3013 SDL_CFLAGS=$sdl_cflags
3014 LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3015 EXTRALIBS=$extralibs
3016 INSTALL=install
3017 LIBTARGET=${LIBTARGET}
3018 SLIBNAME=${SLIBNAME}
3019 SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3020 SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3021 SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3022 SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3023 SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3024 SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3025 SAMPLES=$samples
3026 EOF
3027
3028 get_version(){
3029     name=$1
3030     file=$source_path/$2
3031     eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3032     eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3033     lcname=$(tolower $name)
3034     eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3035     eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3036 }
3037
3038 get_version LIBSWSCALE  libswscale/swscale.h
3039 get_version LIBPOSTPROC libpostproc/postprocess.h
3040 get_version LIBAVCODEC  libavcodec/avcodec.h
3041 get_version LIBAVDEVICE libavdevice/avdevice.h
3042 get_version LIBAVFORMAT libavformat/avformat.h
3043 get_version LIBAVUTIL   libavutil/avutil.h
3044 get_version LIBAVFILTER libavfilter/avfilter.h
3045
3046 enabled asmalign_pot || align_shift="1 <<"
3047
3048 cat > $TMPH <<EOF
3049 /* Automatically generated by configure - do not modify! */
3050 #ifndef FFMPEG_CONFIG_H
3051 #define FFMPEG_CONFIG_H
3052 #define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3053 #define FFMPEG_LICENSE "$(c_escape $license)"
3054 #define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3055 #define CC_TYPE "$cc_type"
3056 #define CC_VERSION $cc_version
3057 #define restrict $_restrict
3058 #define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
3059 #define EXTERN_PREFIX "${extern_prefix}"
3060 #define EXTERN_ASM ${extern_prefix}
3061 EOF
3062
3063 test -n "$malloc_prefix" &&
3064     echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3065
3066 if enabled small || disabled optimizations; then
3067     echo "#undef  av_always_inline"  >> $TMPH
3068     echo "#define av_always_inline"  >> $TMPH
3069 fi
3070
3071 print_config ARCH_   $TMPH config.mak $ARCH_LIST
3072 print_config HAVE_   $TMPH config.mak $HAVE_LIST
3073 print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
3074                                       $CONFIG_EXTRA      \
3075                                       $DECODER_LIST      \
3076                                       $ENCODER_LIST      \
3077                                       $HWACCEL_LIST      \
3078                                       $PARSER_LIST       \
3079                                       $BSF_LIST          \
3080                                       $DEMUXER_LIST      \
3081                                       $MUXER_LIST        \
3082                                       $FILTER_LIST       \
3083                                       $PROTOCOL_LIST     \
3084                                       $INDEV_LIST        \
3085                                       $OUTDEV_LIST       \
3086
3087 echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3088 echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3089
3090 # Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3091 cp_if_changed $TMPH config.h
3092
3093 cat > $TMPH <<EOF
3094 /* Generated by ffconf */
3095 #ifndef AVUTIL_AVCONFIG_H
3096 #define AVUTIL_AVCONFIG_H
3097 EOF
3098
3099 print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3100
3101 echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3102
3103 cp_if_changed $TMPH libavutil/avconfig.h
3104
3105 # build pkg-config files
3106
3107 pkgconfig_generate(){
3108 name=$1
3109 shortname=${name#lib}${build_suffix}
3110 comment=$2
3111 version=$3
3112 libs=$4
3113 requires=$5
3114 cat <<EOF > $name/$name.pc
3115 prefix=$prefix
3116 exec_prefix=\${prefix}
3117 libdir=$libdir
3118 includedir=$incdir
3119
3120 Name: $name
3121 Description: $comment
3122 Version: $version
3123 Requires: $(enabled shared || echo $requires)
3124 Requires.private: $(enabled shared && echo $requires)
3125 Conflicts:
3126 Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3127 Libs.private: $(enabled shared && echo $libs)
3128 Cflags: -I\${includedir}
3129 EOF
3130 cat <<EOF > $name/$name-uninstalled.pc
3131 prefix=
3132 exec_prefix=
3133 libdir=\${pcfiledir}
3134 includedir=${source_path}
3135
3136 Name: $name
3137 Description: $comment
3138 Version: $version
3139 Requires: $requires
3140 Conflicts:
3141 Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3142 Cflags: -I\${includedir}
3143 EOF
3144 }
3145
3146 pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3147 pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3148 pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3149 pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3150 enabled avfilter &&
3151     pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3152 enabled postproc &&
3153     pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3154 pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"