h264dec: add a CUVID hwaccel
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-cuvid   Nvidia CUVID video decode acceleration
241   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
242   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
243   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
244   --enable-libnpp  Nvidia CUDA processing
245   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
246   --enable-nvenc   Nvidia video encoding
247   --enable-omx     OpenMAX IL
248   --enable-omx-rpi OpenMAX IL for Raspberry Pi
249   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
250   --enable-vda     Apple Video Decode Acceleration [auto]
251   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
252
253 Toolchain options:
254   --arch=ARCH              select architecture [$arch]
255   --cpu=CPU                select the minimum required CPU (affects
256                            instruction selection, may crash on older CPUs)
257   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
258   --enable-cross-compile   assume a cross-compiler is used
259   --sysroot=PATH           root of cross-build tree
260   --sysinclude=PATH        location of cross-build system headers
261   --target-os=OS           compiler targets OS [$target_os]
262   --target-exec=CMD        command to run executables on target
263   --target-path=DIR        path to view of build directory on target
264   --target-samples=DIR     path to samples directory on target
265   --toolchain=NAME         set tool defaults according to NAME
266   --nm=NM                  use nm tool
267   --ar=AR                  use archive tool AR [$ar_default]
268   --as=AS                  use assembler AS [$as_default]
269   --cc=CC                  use C compiler CC [$cc_default]
270   --objcc=OCC              use ObjC compiler OCC [$cc_default]
271   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
272   --ld=LD                  use linker LD
273   --x86asmexe=X86ASM       use x86 assembler X86ASM
274   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
275   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
276   --host-cc=HOSTCC         use host C compiler HOSTCC
277   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
278   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
279   --host-ld=HOSTLD         use host linker HOSTLD
280   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
281   --host-libs=HLIBS        use libs HLIBS when linking for host
282   --host-os=OS             compiler host OS [$target_os]
283   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
284   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
285   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
286   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
287   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
288   --extra-libs=ELIBS       add ELIBS [$ELIBS]
289   --extra-version=STRING   version string suffix []
290   --optflags=OPTFLAGS      override optimization-related compiler flags
291   --enable-pic             build position-independent code
292   --enable-thumb           compile for Thumb instruction set
293   --enable-lto             use link-time optimization
294   --env="ENV=override"     override the environment variables
295
296 Advanced options (experts only):
297   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
298   --custom-allocator=NAME  use a supported custom allocator
299   --disable-symver         disable symbol versioning
300   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
301   --disable-safe-bitstream-reader
302                            disable buffer boundary checking in bitreaders
303                            (faster, but may crash)
304   --enable-sram            allow use of on-chip SRAM
305
306 Optimization options (experts only):
307   --disable-asm            disable all assembly optimizations
308   --disable-altivec        disable AltiVec optimizations
309   --disable-vsx            disable VSX optimizations
310   --disable-power8         disable POWER8 optimizations
311   --disable-amd3dnow       disable 3DNow! optimizations
312   --disable-amd3dnowext    disable 3DNow! extended optimizations
313   --disable-mmx            disable MMX optimizations
314   --disable-mmxext         disable MMXEXT optimizations
315   --disable-sse            disable SSE optimizations
316   --disable-sse2           disable SSE2 optimizations
317   --disable-sse3           disable SSE3 optimizations
318   --disable-ssse3          disable SSSE3 optimizations
319   --disable-sse4           disable SSE4 optimizations
320   --disable-sse42          disable SSE4.2 optimizations
321   --disable-avx            disable AVX optimizations
322   --disable-xop            disable XOP optimizations
323   --disable-fma3           disable FMA3 optimizations
324   --disable-fma4           disable FMA4 optimizations
325   --disable-avx2           disable AVX2 optimizations
326   --disable-armv5te        disable armv5te optimizations
327   --disable-armv6          disable armv6 optimizations
328   --disable-armv6t2        disable armv6t2 optimizations
329   --disable-vfp            disable VFP optimizations
330   --disable-neon           disable NEON optimizations
331   --disable-inline-asm     disable use of inline assembly
332   --disable-x86asm         disable use of standalone x86 assembly
333
334 Developer options (useful when working on Libav itself):
335   --disable-debug          disable debugging symbols
336   --enable-debug=LEVEL     set the debug level [$debuglevel]
337   --disable-optimizations  disable compiler optimizations
338   --enable-extra-warnings  enable more compiler warnings
339   --samples=PATH           location of test samples for FATE, if not set use
340                            \$LIBAV_SAMPLES at make invocation time.
341   --enable-neon-clobber-test check NEON registers for clobbering (should be
342                            used only for debugging purposes)
343   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
344                            should be used only for debugging purposes)
345   --enable-random          randomly enable/disable components
346   --disable-random
347   --enable-random=LIST     randomly enable/disable specific components or
348   --disable-random=LIST    component groups. LIST is a comma-separated list
349                            of NAME[:PROB] entries where NAME is a component
350                            (group) and PROB the probability associated with
351                            NAME (default 0.5).
352   --random-seed=VALUE      seed value for --enable/disable-random
353   --disable-valgrind-backtrace do not print a backtrace under Valgrind
354                            (only applies to --disable-optimizations builds)
355   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
356                            in the name) of tests whose result is ignored
357
358 NOTE: Object files are built at the place where configure is launched.
359 EOF
360   exit 0
361 }
362
363 quotes='""'
364
365 log(){
366     echo "$@" >> $logfile
367 }
368
369 log_file(){
370     log BEGIN $1
371     i=1
372     while read line; do
373         printf '%5s   %s\n' "${i}" "${line}"
374         i=$(($i+1))
375     done < $1 >> $logfile
376     log END $1
377 }
378
379 echolog(){
380     log "$@"
381     echo "$@"
382 }
383
384 warn(){
385     log "WARNING: $*"
386     WARNINGS="${WARNINGS}WARNING: $*\n"
387 }
388
389 die(){
390     echolog "$@"
391     cat <<EOF
392
393 If you think configure made a mistake, make sure you are using the latest
394 version from Git.  If the latest version fails, report the problem to the
395 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
396 EOF
397     if disabled logging; then
398         cat <<EOF
399 Rerun configure with logging enabled (do not use --disable-logging), and
400 include the log this produces with your report.
401 EOF
402     else
403         cat <<EOF
404 Include the log file "$logfile" produced by configure as this will help
405 solving the problem.
406 EOF
407     fi
408     exit 1
409 }
410
411 # Avoid locale weirdness, besides we really just want to translate ASCII.
412 toupper(){
413     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
414 }
415
416 tolower(){
417     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
418 }
419
420 c_escape(){
421     echo "$*" | sed 's/["\\]/\\\0/g'
422 }
423
424 sh_quote(){
425     v=$(echo "$1" | sed "s/'/'\\\\''/g")
426     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
427     echo "$v"
428 }
429
430 cleanws(){
431     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
432 }
433
434 filter(){
435     pat=$1
436     shift
437     for v; do
438         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
439     done
440 }
441
442 filter_out(){
443     pat=$1
444     shift
445     for v; do
446         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
447     done
448 }
449
450 map(){
451     m=$1
452     shift
453     for v; do eval $m; done
454 }
455
456 add_suffix(){
457     suffix=$1
458     shift
459     for v; do echo ${v}${suffix}; done
460 }
461
462 set_all(){
463     value=$1
464     shift
465     for var in $*; do
466         eval $var=$value
467     done
468 }
469
470 set_weak(){
471     value=$1
472     shift
473     for var; do
474         eval : \${$var:=$value}
475     done
476 }
477
478 sanitize_var_name(){
479     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
480 }
481
482 set_sanitized(){
483     var=$1
484     shift
485     eval $(sanitize_var_name "$var")='$*'
486 }
487
488 get_sanitized(){
489     eval echo \$$(sanitize_var_name "$1")
490 }
491
492 pushvar(){
493     for pvar in $*; do
494         eval level=\${${pvar}_level:=0}
495         eval ${pvar}_${level}="\$$pvar"
496         eval ${pvar}_level=$(($level+1))
497     done
498 }
499
500 popvar(){
501     for pvar in $*; do
502         eval level=\${${pvar}_level:-0}
503         test $level = 0 && continue
504         eval level=$(($level-1))
505         eval $pvar="\${${pvar}_${level}}"
506         eval ${pvar}_level=$level
507         eval unset ${pvar}_${level}
508     done
509 }
510
511 enable(){
512     set_all yes $*
513 }
514
515 disable(){
516     set_all no $*
517 }
518
519 enable_weak(){
520     set_weak yes $*
521 }
522
523 disable_weak(){
524     set_weak no $*
525 }
526
527 enable_sanitized(){
528     for var; do
529         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
530     done
531 }
532
533 disable_sanitized(){
534     for var; do
535         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
536     done
537 }
538
539 do_enable_deep(){
540     for var; do
541         enabled $var && continue
542         eval sel="\$${var}_select"
543         eval sgs="\$${var}_suggest"
544         pushvar var sgs
545         enable_deep $sel
546         popvar sgs
547         enable_deep_weak $sgs
548         popvar var
549     done
550 }
551
552 enable_deep(){
553     do_enable_deep $*
554     enable $*
555 }
556
557 enable_deep_weak(){
558     for var; do
559         disabled $var && continue
560         pushvar var
561         do_enable_deep $var
562         popvar var
563         enable_weak $var
564     done
565 }
566
567 enabled(){
568     test "${1#!}" = "$1" && op== || op=!=
569     eval test "x\$${1#!}" $op "xyes"
570 }
571
572 disabled(){
573     test "${1#!}" = "$1" && op== || op=!=
574     eval test "x\$${1#!}" $op "xno"
575 }
576
577 enabled_all(){
578     for opt; do
579         enabled $opt || return 1
580     done
581 }
582
583 disabled_all(){
584     for opt; do
585         disabled $opt || return 1
586     done
587 }
588
589 enabled_any(){
590     for opt; do
591         enabled $opt && return 0
592     done
593 }
594
595 disabled_any(){
596     for opt; do
597         disabled $opt && return 0
598     done
599     return 1
600 }
601
602 set_default(){
603     for opt; do
604         eval : \${$opt:=\$${opt}_default}
605     done
606 }
607
608 is_in(){
609     value=$1
610     shift
611     for var in $*; do
612         [ $var = $value ] && return 0
613     done
614     return 1
615 }
616
617 check_deps(){
618     for cfg; do
619         enabled ${cfg}_checking && die "Circular dependency for $cfg."
620         disabled ${cfg}_checking && continue
621         enable ${cfg}_checking
622
623         eval dep_all="\$${cfg}_deps"
624         eval dep_any="\$${cfg}_deps_any"
625         eval dep_con="\$${cfg}_conflict"
626         eval dep_sel="\$${cfg}_select"
627         eval dep_sgs="\$${cfg}_suggest"
628         eval dep_ifa="\$${cfg}_if"
629         eval dep_ifn="\$${cfg}_if_any"
630
631         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
632         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
633         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
634
635         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
636         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
637         enabled_all  $dep_all || disable $cfg
638         enabled_any  $dep_any || disable $cfg
639         disabled_all $dep_con || disable $cfg
640         disabled_any $dep_sel && disable $cfg
641
642         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
643
644         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
645             # filter out library deps, these do not belong in extralibs
646             is_in $dep $LIBRARY_LIST && continue
647             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
648         done
649
650         disable ${cfg}_checking
651     done
652 }
653
654 print_config(){
655     pfx=$1
656     files=$2
657     shift 2
658     map 'eval echo "$v \${$v:-no}"' "$@" |
659     awk "BEGIN { split(\"$files\", files) }
660         {
661             c = \"$pfx\" toupper(\$1);
662             v = \$2;
663             sub(/yes/, 1, v);
664             sub(/no/,  0, v);
665             for (f in files) {
666                 file = files[f];
667                 if (file ~ /\\.h\$/) {
668                     printf(\"#define %s %d\\n\", c, v) >>file;
669                 } else if (file ~ /\\.asm\$/) {
670                     printf(\"%%define %s %d\\n\", c, v) >>file;
671                 } else if (file ~ /\\.mak\$/) {
672                     n = -v ? \"\" : \"!\";
673                     printf(\"%s%s=yes\\n\", n, c) >>file;
674                 }
675             }
676         }"
677 }
678
679 print_enabled(){
680     suf=$1
681     shift
682     for v; do
683         enabled $v && printf "%s\n" ${v%$suf}
684     done
685 }
686
687 append(){
688     var=$1
689     shift
690     eval "$var=\"\$$var $*\""
691 }
692
693 prepend(){
694     var=$1
695     shift
696     eval "$var=\"$* \$$var\""
697 }
698
699 unique(){
700     var=$1
701     uniq_list=""
702     for tok in $(eval echo \$$var); do
703         uniq_list="$(filter_out $tok $uniq_list) $tok"
704     done
705     eval "$var=\"${uniq_list}\""
706 }
707
708 resolve(){
709     var=$1
710     tmpvar=
711     for entry in $(eval echo \$$var); do
712         tmpvar="$tmpvar $(eval echo \$${entry})"
713     done
714     eval "$var=\"${tmpvar}\""
715 }
716
717 add_cppflags(){
718     append CPPFLAGS "$@"
719 }
720
721 add_cflags(){
722     append CFLAGS $($cflags_filter "$@")
723 }
724
725 add_cflags_headers(){
726     append CFLAGS_HEADERS $($cflags_filter "$@")
727 }
728
729 add_asflags(){
730     append ASFLAGS $($asflags_filter "$@")
731 }
732
733 add_objcflags(){
734     append OBJCFLAGS $($objcflags_filter "$@")
735 }
736
737 add_ldflags(){
738     append LDFLAGS $($ldflags_filter "$@")
739 }
740
741 add_ldexeflags(){
742     append LDEXEFLAGS $($ldflags_filter "$@")
743 }
744
745 add_ldsoflags(){
746     append LDSOFLAGS $($ldflags_filter "$@")
747 }
748
749 add_stripflags(){
750     append STRIPFLAGS "$@"
751 }
752
753 add_extralibs(){
754     prepend extralibs $($ldflags_filter "$@")
755 }
756
757 add_host_cppflags(){
758     append host_cppflags "$@"
759 }
760
761 add_host_cflags(){
762     append host_cflags $($host_cflags_filter "$@")
763 }
764
765 add_host_ldflags(){
766     append host_ldflags $($host_ldflags_filter "$@")
767 }
768
769 add_compat(){
770     append compat_objs $1
771     shift
772     map 'add_cppflags -D$v' "$@"
773 }
774
775 check_cmd(){
776     log "$@"
777     "$@" >> $logfile 2>&1
778 }
779
780 cc_o(){
781     eval printf '%s\\n' $CC_O
782 }
783
784 cc_e(){
785     eval printf '%s\\n' $CC_E
786 }
787
788 check_cc(){
789     log check_cc "$@"
790     cat > $TMPC
791     log_file $TMPC
792     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
793 }
794
795 check_objcc(){
796     log check_objcc "$@"
797     cat > $TMPC
798     log_file $TMPC
799     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
800 }
801
802 check_cpp(){
803     log check_cpp "$@"
804     cat > $TMPC
805     log_file $TMPC
806     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
807 }
808
809 as_o(){
810     eval printf '%s\\n' $AS_O
811 }
812
813 check_as(){
814     log check_as "$@"
815     cat > $TMPS
816     log_file $TMPS
817     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
818 }
819
820 check_inline_asm(){
821     log check_inline_asm "$@"
822     name="$1"
823     code="$2"
824     shift 2
825     disable $name
826     check_cc "$@" <<EOF && enable $name
827 void foo(void){ __asm__ volatile($code); }
828 EOF
829 }
830
831 check_insn(){
832     log check_insn "$@"
833     check_inline_asm ${1}_inline "\"$2\""
834     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
835 }
836
837 check_x86asm(){
838     log check_x86asm "$@"
839     echo "$1" > $TMPS
840     log_file $TMPS
841     shift 1
842     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
843 }
844
845 ld_o(){
846     eval printf '%s\\n' $LD_O
847 }
848
849 check_ld(){
850     log check_ld "$@"
851     flags=$(filter_out '-l*' "$@")
852     libs=$(filter '-l*' "$@")
853     check_cc $($cflags_filter $flags) || return
854     flags=$($ldflags_filter $flags)
855     libs=$($ldflags_filter $libs)
856     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
857 }
858
859 print_include(){
860     hdr=$1
861     test "${hdr%.h}" = "${hdr}" &&
862         echo "#include $hdr"    ||
863         echo "#include <$hdr>"
864 }
865
866 check_code(){
867     log check_code "$@"
868     check=$1
869     headers=$2
870     code=$3
871     shift 3
872     {
873         for hdr in $headers; do
874             print_include $hdr
875         done
876         echo "int main(void) { $code; return 0; }"
877     } | check_$check "$@"
878 }
879
880 check_cppflags(){
881     log check_cppflags "$@"
882     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
883 #include <stdlib.h>;
884 EOF
885 }
886
887 test_cflags(){
888     log test_cflags "$@"
889     set -- $($cflags_filter "$@")
890     check_cc "$@" <<EOF
891 int x;
892 EOF
893 }
894
895 check_cflags(){
896     log check_cflags "$@"
897     test_cflags "$@" && add_cflags "$@"
898 }
899
900 test_objcflags(){
901     log test_objcflags "$@"
902     set -- $($objcflags_filter "$@")
903     check_objcc "$@" <<EOF
904 int x;
905 EOF
906 }
907
908 check_objcflags(){
909     log check_objcflags "$@"
910     test_objcflags "$@" && add_objcflags "$@"
911 }
912
913 test_ldflags(){
914     log test_ldflags "$@"
915     check_ld "$@" <<EOF
916 int main(void){ return 0; }
917 EOF
918 }
919
920 check_ldflags(){
921     log check_ldflags "$@"
922     test_ldflags "$@" && add_ldflags "$@"
923 }
924
925 test_stripflags(){
926     log test_stripflags "$@"
927     # call check_cc to get a fresh TMPO
928     check_cc <<EOF
929 int main(void) { return 0; }
930 EOF
931     check_cmd $strip $STRIPFLAGS "$@" $TMPO
932 }
933
934 check_stripflags(){
935     log check_stripflags "$@"
936     test_stripflags "$@" && add_stripflags "$@"
937 }
938
939 check_header(){
940     log check_header "$@"
941     header=$1
942     shift
943     disable_sanitized $header
944     check_cpp "$@" <<EOF && enable_sanitized $header
945 #include <$header>
946 int x;
947 EOF
948 }
949
950 check_func(){
951     log check_func "$@"
952     func=$1
953     shift
954     disable $func
955     check_ld "$@" <<EOF && enable $func
956 extern int $func();
957 int main(void){ $func(); }
958 EOF
959 }
960
961 check_mathfunc(){
962     log check_mathfunc "$@"
963     func=$1
964     narg=$2
965     shift 2
966     test $narg = 2 && args="f, g" || args="f"
967     disable $func
968     check_ld "$@" <<EOF && enable $func
969 #include <math.h>
970 float foo(float f, float g) { return $func($args); }
971 int main(void){ return 0; }
972 EOF
973 }
974
975 check_func_headers(){
976     log check_func_headers "$@"
977     headers=$1
978     funcs=$2
979     shift 2
980     {
981         for hdr in $headers; do
982             print_include $hdr
983         done
984         for func in $funcs; do
985             echo "long check_$func(void) { return (long) $func; }"
986         done
987         echo "int main(void) { return 0; }"
988     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
989 }
990
991 check_cpp_condition(){
992     log check_cpp_condition "$@"
993     header=$1
994     condition=$2
995     shift 2
996     check_cpp "$@" <<EOF
997 #include <$header>
998 #if !($condition)
999 #error "unsatisfied condition: $condition"
1000 #endif
1001 EOF
1002 }
1003
1004 test_cflags_cpp(){
1005     log test_cflags_cpp "$@"
1006     flags=$1
1007     condition=$2
1008     shift 2
1009     set -- $($cflags_filter "$flags")
1010     check_cpp "$@" <<EOF
1011 #if !($condition)
1012 #error "unsatisfied condition: $condition"
1013 #endif
1014 EOF
1015 }
1016
1017 check_lib(){
1018     log check_lib "$@"
1019     name="$1"
1020     headers="$2"
1021     funcs="$3"
1022     shift 3
1023     disable $name
1024     check_func_headers "$headers" "$funcs" "$@" &&
1025         enable $name && eval ${name}_extralibs="\$@"
1026 }
1027
1028 check_pkg_config(){
1029     log check_pkg_config "$@"
1030     name="$1"
1031     pkg_version="$2"
1032     pkg="${2%% *}"
1033     headers="$3"
1034     funcs="$4"
1035     shift 4
1036     disable $name
1037     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1038     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1039     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1040     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1041         enable $name &&
1042         add_cflags    "$pkg_cflags" &&
1043         eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1044 }
1045
1046 check_exec(){
1047     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1048 }
1049
1050 check_exec_crash(){
1051     log check_exec_crash "$@"
1052     code=$(cat)
1053
1054     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1055     # are safe but may not be available everywhere.  Thus we use
1056     # raise(SIGTERM) instead.  The check is run in a subshell so we
1057     # can redirect the "Terminated" message from the shell.  SIGBUS
1058     # is not defined by standard C so it is used conditionally.
1059
1060     (check_exec "$@") >> $logfile 2>&1 <<EOF
1061 #include <signal.h>
1062 static void sighandler(int sig){
1063     raise(SIGTERM);
1064 }
1065 int foo(void){
1066     $code
1067 }
1068 int (*func_ptr)(void) = foo;
1069 int main(void){
1070     signal(SIGILL, sighandler);
1071     signal(SIGFPE, sighandler);
1072     signal(SIGSEGV, sighandler);
1073 #ifdef SIGBUS
1074     signal(SIGBUS, sighandler);
1075 #endif
1076     return func_ptr();
1077 }
1078 EOF
1079 }
1080
1081 check_type(){
1082     log check_type "$@"
1083     headers=$1
1084     type=$2
1085     shift 2
1086     disable_sanitized "$type"
1087     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1088 }
1089
1090 check_struct(){
1091     log check_struct "$@"
1092     headers=$1
1093     struct=$2
1094     member=$3
1095     shift 3
1096     disable_sanitized "${struct}_${member}"
1097     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1098         enable_sanitized "${struct}_${member}"
1099 }
1100
1101 check_builtin(){
1102     log check_builtin "$@"
1103     name=$1
1104     headers=$2
1105     builtin=$3
1106     shift 3
1107     disable "$name"
1108     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1109 }
1110
1111 check_compile_assert(){
1112     log check_compile_assert "$@"
1113     name=$1
1114     headers=$2
1115     condition=$3
1116     shift 3
1117     disable "$name"
1118     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1119 }
1120
1121 require(){
1122     log require "$@"
1123     name_version="$1"
1124     name="${1%% *}"
1125     headers="$2"
1126     func="$3"
1127     shift 3
1128     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1129 }
1130
1131 require_header(){
1132     log require "$@"
1133     header="$1"
1134     shift
1135     check_header "$header" "$@" || die "ERROR: $header not found"
1136 }
1137
1138 require_cpp_condition(){
1139     log require "$@"
1140     header="$1"
1141     condition="$2"
1142     shift 2
1143     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1144 }
1145
1146 require_pkg_config(){
1147     log require_pkg_config "$@"
1148     pkg_version="$2"
1149     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1150 }
1151
1152 hostcc_e(){
1153     eval printf '%s\\n' $HOSTCC_E
1154 }
1155
1156 hostcc_o(){
1157     eval printf '%s\\n' $HOSTCC_O
1158 }
1159
1160 check_host_cc(){
1161     log check_host_cc "$@"
1162     cat > $TMPC
1163     log_file $TMPC
1164     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1165 }
1166
1167 check_host_cpp(){
1168     log check_host_cpp "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1172 }
1173
1174 check_host_cppflags(){
1175     log check_host_cppflags "$@"
1176     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1177 #include <stdlib.h>;
1178 EOF
1179 }
1180
1181 check_host_cflags(){
1182     log check_host_cflags "$@"
1183     set -- $($host_cflags_filter "$@")
1184     check_host_cc "$@" <<EOF && append host_cflags "$@"
1185 int x;
1186 EOF
1187 }
1188
1189 check_host_cpp_condition(){
1190     log check_host_cpp_condition "$@"
1191     header=$1
1192     condition=$2
1193     shift 2
1194     check_host_cpp "$@" <<EOF
1195 #include <$header>
1196 #if !($condition)
1197 #error "unsatisfied condition: $condition"
1198 #endif
1199 EOF
1200 }
1201
1202 apply(){
1203     file=$1
1204     shift
1205     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1206 }
1207
1208 cp_if_changed(){
1209     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1210     mkdir -p "$(dirname $2)"
1211     cp -f "$1" "$2"
1212 }
1213
1214 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1215 # system-dependent things.
1216
1217 AVCODEC_COMPONENTS="
1218     bsfs
1219     decoders
1220     encoders
1221     hwaccels
1222     parsers
1223 "
1224
1225 AVDEVICE_COMPONENTS="
1226     indevs
1227     outdevs
1228 "
1229 AVFILTER_COMPONENTS="
1230     filters
1231 "
1232 AVFORMAT_COMPONENTS="
1233     demuxers
1234     muxers
1235     protocols
1236 "
1237
1238 AVRESAMPLE_COMPONENTS=""
1239 AVUTIL_COMPONENTS=""
1240
1241 COMPONENT_LIST="
1242     $AVCODEC_COMPONENTS
1243     $AVDEVICE_COMPONENTS
1244     $AVFILTER_COMPONENTS
1245     $AVFORMAT_COMPONENTS
1246     $AVRESAMPLE_COMPONENTS
1247     $AVUTIL_COMPONENTS
1248 "
1249
1250 EXAMPLE_LIST="
1251     decode_audio_example
1252     decode_video_example
1253     encode_audio_example
1254     encode_video_example
1255     filter_audio_example
1256     metadata_example
1257     output_example
1258     qsvdec_example
1259     transcode_aac_example
1260 "
1261
1262 # catchall list of things that require external libs to link
1263 EXTRALIBS_LIST="
1264     cpu_init
1265     cws2fws
1266 "
1267
1268 HWACCEL_LIBRARY_NONFREE_LIST="
1269     cuda
1270     cuvid
1271     libnpp
1272 "
1273 HWACCEL_LIBRARY_LIST="
1274     $HWACCEL_LIBRARY_NONFREE_LIST
1275     d3d11va
1276     dxva2
1277     libmfx
1278     mmal
1279     nvenc
1280     omx
1281     vaapi
1282     vda
1283     vdpau
1284 "
1285
1286 EXTERNAL_LIBRARY_GPL_LIST="
1287     libcdio
1288     libx264
1289     libx265
1290     libxavs
1291     libxvid
1292 "
1293
1294 EXTERNAL_LIBRARY_NONFREE_LIST="
1295     libfaac
1296     libfdk_aac
1297     openssl
1298 "
1299
1300 EXTERNAL_LIBRARY_VERSION3_LIST="
1301     libopencore_amrnb
1302     libopencore_amrwb
1303     libvo_aacenc
1304     libvo_amrwbenc
1305 "
1306
1307 EXTERNAL_LIBRARY_LIST="
1308     $EXTERNAL_LIBRARY_GPL_LIST
1309     $EXTERNAL_LIBRARY_NONFREE_LIST
1310     $EXTERNAL_LIBRARY_VERSION3_LIST
1311     avisynth
1312     avxsynth
1313     frei0r
1314     gnutls
1315     libbs2b
1316     libdc1394
1317     libdcadec
1318     libfontconfig
1319     libfreetype
1320     libgsm
1321     libhdcd
1322     libilbc
1323     libjack
1324     libkvazaar
1325     libmp3lame
1326     libopencv
1327     libopenh264
1328     libopenjpeg
1329     libopus
1330     libpulse
1331     librtmp
1332     libschroedinger
1333     libsnappy
1334     libspeex
1335     libtheora
1336     libtwolame
1337     libvorbis
1338     libvpx
1339     libwavpack
1340     libwebp
1341     libxcb
1342     libxcb_shm
1343     libxcb_xfixes
1344 "
1345
1346 SYSTEM_LIBRARY_LIST="
1347     bzlib
1348     zlib
1349 "
1350
1351 FEATURE_LIST="
1352     gray
1353     hardcoded_tables
1354     omx_rpi
1355     runtime_cpudetect
1356     safe_bitstream_reader
1357     shared
1358     small
1359     sram
1360     static
1361     swscale_alpha
1362 "
1363
1364 LIBRARY_LIST="
1365     avcodec
1366     avdevice
1367     avfilter
1368     avformat
1369     avresample
1370     avutil
1371     swscale
1372 "
1373
1374 LICENSE_LIST="
1375     gpl
1376     nonfree
1377     version3
1378 "
1379
1380 PROGRAM_LIST="
1381     avconv
1382     avplay
1383     avprobe
1384 "
1385
1386 SUBSYSTEM_LIST="
1387     dct
1388     doc
1389     error_resilience
1390     faan
1391     fft
1392     lsp
1393     lzo
1394     mdct
1395     network
1396     rdft
1397 "
1398
1399 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1400 CONFIG_LIST="
1401     $EXAMPLE_LIST
1402     $EXTERNAL_LIBRARY_LIST
1403     $HWACCEL_LIBRARY_LIST
1404     $FEATURE_LIST
1405     $LICENSE_LIST
1406     $LIBRARY_LIST
1407     $PROGRAM_LIST
1408     $SUBSYSTEM_LIST
1409     $SYSTEM_LIBRARY_LIST
1410     neon_clobber_test
1411     pic
1412     pod2man
1413     texi2html
1414     thumb
1415     valgrind_backtrace
1416     xmm_clobber_test
1417     $COMPONENT_LIST
1418 "
1419
1420 THREADS_LIST="
1421     pthreads
1422     w32threads
1423 "
1424
1425 ATOMICS_LIST="
1426     atomics_gcc
1427     atomics_suncc
1428     atomics_win32
1429 "
1430
1431 ARCH_LIST="
1432     aarch64
1433     alpha
1434     arm
1435     avr32
1436     avr32_ap
1437     avr32_uc
1438     bfin
1439     ia64
1440     m68k
1441     mips
1442     mips64
1443     parisc
1444     ppc
1445     ppc64
1446     s390
1447     sh4
1448     sparc
1449     sparc64
1450     tilegx
1451     tilepro
1452     tomi
1453     x86
1454     x86_32
1455     x86_64
1456 "
1457
1458 ARCH_EXT_LIST_ARM="
1459     armv5te
1460     armv6
1461     armv6t2
1462     armv8
1463     neon
1464     vfp
1465     vfpv3
1466 "
1467
1468 ARCH_EXT_LIST_X86_SIMD="
1469     amd3dnow
1470     amd3dnowext
1471     avx
1472     avx2
1473     fma3
1474     fma4
1475     mmx
1476     mmxext
1477     sse
1478     sse2
1479     sse3
1480     sse4
1481     sse42
1482     ssse3
1483     xop
1484 "
1485
1486 ARCH_EXT_LIST_PPC="
1487     altivec
1488     dcbzl
1489     ldbrx
1490     power8
1491     ppc4xx
1492     vsx
1493 "
1494
1495 ARCH_EXT_LIST_X86="
1496     $ARCH_EXT_LIST_X86_SIMD
1497     cpunop
1498     i686
1499 "
1500
1501 ARCH_EXT_LIST_MIPS="
1502     loongson
1503     mips32r1
1504     mips64r1
1505     mips32r2
1506     mips64r2
1507     mips32r6
1508     mips64r6
1509 "
1510
1511 ARCH_EXT_LIST="
1512     $ARCH_EXT_LIST_ARM
1513     $ARCH_EXT_LIST_MIPS
1514     $ARCH_EXT_LIST_PPC
1515     $ARCH_EXT_LIST_X86
1516     vis
1517 "
1518
1519 ARCH_FEATURES="
1520     aligned_stack
1521     fast_64bit
1522     fast_clz
1523     fast_cmov
1524     local_aligned_8
1525     local_aligned_16
1526     local_aligned_32
1527     simd_align_16
1528     simd_align_32
1529 "
1530
1531 BUILTIN_LIST="
1532     atomic_cas_ptr
1533     machine_rw_barrier
1534     MemoryBarrier
1535     mm_empty
1536     rdtsc
1537     sem_timedwait
1538     sync_val_compare_and_swap
1539 "
1540 HAVE_LIST_CMDLINE="
1541     inline_asm
1542     symver
1543     x86asm
1544 "
1545
1546 HAVE_LIST_PUB="
1547     bigendian
1548     fast_unaligned
1549 "
1550
1551 HEADERS_LIST="
1552     AVFoundation_AVFoundation_h
1553     alsa_asoundlib_h
1554     arpa_inet_h
1555     cdio_paranoia_h
1556     cdio_paranoia_paranoia_h
1557     d3d11_h
1558     dispatch_dispatch_h
1559     dev_bktr_ioctl_bt848_h
1560     dev_bktr_ioctl_meteor_h
1561     dev_ic_bt8xx_h
1562     dev_video_bktr_ioctl_bt848_h
1563     dev_video_meteor_ioctl_meteor_h
1564     direct_h
1565     dlfcn_h
1566     dxgidebug_h
1567     dxva_h
1568     gsm_h
1569     io_h
1570     mach_mach_time_h
1571     machine_ioctl_bt848_h
1572     machine_ioctl_meteor_h
1573     malloc_h
1574     poll_h
1575     sndio_h
1576     soundcard_h
1577     stdatomic_h
1578     sys_mman_h
1579     sys_param_h
1580     sys_resource_h
1581     sys_select_h
1582     sys_soundcard_h
1583     sys_time_h
1584     sys_un_h
1585     sys_videoio_h
1586     unistd_h
1587     valgrind_valgrind_h
1588     windows_h
1589     winsock2_h
1590 "
1591
1592 INTRINSICS_LIST="
1593     intrinsics_neon
1594 "
1595
1596 MATH_FUNCS="
1597     atanf
1598     atan2f
1599     cbrtf
1600     cosf
1601     exp2
1602     exp2f
1603     expf
1604     isinf
1605     isnan
1606     ldexpf
1607     llrint
1608     llrintf
1609     log2
1610     log2f
1611     log10f
1612     lrint
1613     lrintf
1614     powf
1615     rint
1616     round
1617     roundf
1618     sinf
1619     trunc
1620     truncf
1621 "
1622
1623 SYSTEM_FUNCS="
1624     aligned_malloc
1625     clock_gettime
1626     closesocket
1627     CommandLineToArgvW
1628     CoTaskMemFree
1629     CryptGenRandom
1630     fcntl
1631     flt_lim
1632     fork
1633     getaddrinfo
1634     gethrtime
1635     getopt
1636     GetProcessAffinityMask
1637     GetProcessMemoryInfo
1638     GetProcessTimes
1639     getrusage
1640     GetSystemTimeAsFileTime
1641     gettimeofday
1642     gmtime_r
1643     inet_aton
1644     isatty
1645     LoadLibrary
1646     localtime_r
1647     mach_absolute_time
1648     MapViewOfFile
1649     memalign
1650     mkstemp
1651     mmap
1652     mprotect
1653     nanosleep
1654     posix_memalign
1655     sched_getaffinity
1656     SetConsoleTextAttribute
1657     setmode
1658     setrlimit
1659     Sleep
1660     strerror_r
1661     sysconf
1662     sysctl
1663     usleep
1664     VirtualAlloc
1665 "
1666
1667 TOOLCHAIN_FEATURES="
1668     as_arch_directive
1669     as_fpu_directive
1670     as_func
1671     as_object_arch
1672     asm_mod_q
1673     attribute_may_alias
1674     attribute_packed
1675     blocks_extension
1676     ebp_available
1677     ebx_available
1678     gnu_as
1679     ibm_asm
1680     inline_asm_labels
1681     pragma_deprecated
1682     symver_asm_label
1683     symver_gnu_asm
1684     vfp_args
1685     xform_asm
1686     xmm_clobbers
1687 "
1688
1689 TYPES_LIST="
1690     CONDITION_VARIABLE_Ptr
1691     CUVIDDECODECREATEINFO_bitDepthMinus8
1692     socklen_t
1693     struct_addrinfo
1694     struct_group_source_req
1695     struct_ip_mreq_source
1696     struct_ipv6_mreq
1697     struct_pollfd
1698     struct_rusage_ru_maxrss
1699     struct_sockaddr_in6
1700     struct_sockaddr_sa_len
1701     struct_sockaddr_storage
1702     struct_v4l2_frmivalenum_discrete
1703 "
1704
1705 HAVE_LIST="
1706     $ARCH_EXT_LIST
1707     $(add_suffix _external $ARCH_EXT_LIST)
1708     $(add_suffix _inline   $ARCH_EXT_LIST)
1709     $ARCH_FEATURES
1710     $BUILTIN_LIST
1711     $HAVE_LIST_CMDLINE
1712     $HAVE_LIST_PUB
1713     $HEADERS_LIST
1714     $INTRINSICS_LIST
1715     $MATH_FUNCS
1716     $SYSTEM_FUNCS
1717     $THREADS_LIST
1718     $TOOLCHAIN_FEATURES
1719     $TYPES_LIST
1720     dos_paths
1721     libc_msvcrt
1722     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1723     sdl
1724     section_data_rel_ro
1725     threads
1726     uwp
1727     vaapi_drm
1728     vaapi_x11
1729     vdpau_x11
1730 "
1731
1732 # options emitted with CONFIG_ prefix but not available on the command line
1733 CONFIG_EXTRA="
1734     aandcttables
1735     ac3dsp
1736     adts_header
1737     audio_frame_queue
1738     audiodsp
1739     blockdsp
1740     bswapdsp
1741     cabac
1742     dirac_parse
1743     dvprofile
1744     faandct
1745     faanidct
1746     fdctdsp
1747     flacdsp
1748     fmtconvert
1749     g722dsp
1750     gmp
1751     golomb
1752     gplv3
1753     h263dsp
1754     h264chroma
1755     h264dsp
1756     h264parse
1757     h264pred
1758     h264qpel
1759     hevc_ps
1760     hpeldsp
1761     huffman
1762     huffyuvdsp
1763     huffyuvencdsp
1764     idctdsp
1765     iirfilter
1766     imdct15
1767     intrax8
1768     iso_media
1769     ividsp
1770     jpegtables
1771     lgplv3
1772     libx262
1773     libxcb_shape
1774     lpc
1775     lzf
1776     me_cmp
1777     mpeg_er
1778     mpegaudio
1779     mpegaudiodsp
1780     mpegaudioheader
1781     mpegvideo
1782     mpegvideoenc
1783     mss34dsp
1784     pixblockdsp
1785     qpeldsp
1786     qsv
1787     qsvdec
1788     qsvenc
1789     rangecoder
1790     riffdec
1791     riffenc
1792     rtpdec
1793     rtpenc_chain
1794     rv34dsp
1795     sinewin
1796     snappy
1797     srtp
1798     startcode
1799     texturedsp
1800     texturedspenc
1801     tpeldsp
1802     vaapi_encode
1803     vc1dsp
1804     videodsp
1805     vp3dsp
1806     vp56dsp
1807     vp8dsp
1808     wma_freqs
1809     wmv2dsp
1810 "
1811
1812 CMDLINE_SELECT="
1813     $ARCH_EXT_LIST
1814     $CONFIG_LIST
1815     $HAVE_LIST_CMDLINE
1816     $THREADS_LIST
1817     asm
1818     cross_compile
1819     debug
1820     extra_warnings
1821     logging
1822     lto
1823     optimizations
1824     rpath
1825 "
1826
1827 PATHS_LIST="
1828     bindir
1829     datadir
1830     docdir
1831     incdir
1832     libdir
1833     mandir
1834     prefix
1835     shlibdir
1836 "
1837
1838 CMDLINE_SET="
1839     $PATHS_LIST
1840     ar
1841     arch
1842     as
1843     cc
1844     objcc
1845     cpu
1846     cross_prefix
1847     custom_allocator
1848     dep_cc
1849     env
1850     extra_version
1851     host_cc
1852     host_cflags
1853     host_extralibs
1854     host_ld
1855     host_ldflags
1856     host_os
1857     ignore_tests
1858     ld
1859     logfile
1860     malloc_prefix
1861     nm
1862     optflags
1863     pkg_config
1864     pkg_config_flags
1865     random_seed
1866     samples
1867     sysinclude
1868     sysroot
1869     target_exec
1870     target_os
1871     target_path
1872     target_samples
1873     toolchain
1874     x86asmexe
1875 "
1876
1877 CMDLINE_APPEND="
1878     extra_cflags
1879     extra_objcflags
1880     host_cppflags
1881 "
1882
1883 # code dependency declarations
1884
1885 # architecture extensions
1886
1887 armv5te_deps="arm"
1888 armv6_deps="arm"
1889 armv6t2_deps="arm"
1890 armv8_deps="aarch64"
1891 neon_deps_any="aarch64 arm"
1892 intrinsics_neon_deps="neon"
1893 vfp_deps_any="aarch64 arm"
1894 vfpv3_deps="vfp"
1895
1896 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1897
1898 altivec_deps="ppc"
1899 dcbzl_deps="ppc"
1900 ldbrx_deps="ppc"
1901 ppc4xx_deps="ppc"
1902 vsx_deps="altivec"
1903 power8_deps="vsx"
1904
1905 loongson_deps="mips"
1906 mips32r1_deps="mips32"
1907 mips32r2_deps="mips32"
1908 mips32r6_deps="mips32"
1909 mips64r1_deps="mips64"
1910 mips64r2_deps="mips64"
1911 mips64r6_deps="mips64"
1912
1913 vis_deps="sparc"
1914
1915 cpunop_deps="i686"
1916 x86_64_select="i686"
1917 x86_64_suggest="fast_cmov"
1918
1919 amd3dnow_deps="mmx"
1920 amd3dnowext_deps="amd3dnow"
1921 i686_deps="x86"
1922 mmx_deps="x86"
1923 mmxext_deps="mmx"
1924 sse_deps="mmxext"
1925 sse2_deps="sse"
1926 sse3_deps="sse2"
1927 ssse3_deps="sse3"
1928 sse4_deps="ssse3"
1929 sse42_deps="sse4"
1930 avx_deps="sse42"
1931 xop_deps="avx"
1932 fma3_deps="avx"
1933 fma4_deps="avx"
1934 avx2_deps="avx"
1935
1936 mmx_external_deps="x86asm"
1937 mmx_inline_deps="inline_asm x86"
1938 mmx_suggest="mmx_external mmx_inline"
1939
1940 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1941     eval dep=\$${ext}_deps
1942     eval ${ext}_external_deps='"${dep}_external"'
1943     eval ${ext}_inline_deps='"${dep}_inline"'
1944     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1945 done
1946
1947 aligned_stack_if_any="aarch64 ppc x86"
1948 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1949 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1950 fast_unaligned_if_any="aarch64 ppc x86"
1951 simd_align_16_if_any="altivec neon sse"
1952 simd_align_32_if_any="avx"
1953
1954 # system capabilities
1955 symver_if_any="symver_asm_label symver_gnu_asm"
1956 valgrind_backtrace_conflict="optimizations"
1957 valgrind_backtrace_deps="valgrind_valgrind_h"
1958
1959 # threading support
1960 atomics_gcc_if="sync_val_compare_and_swap"
1961 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1962 atomics_win32_if="MemoryBarrier"
1963 atomics_native_if_any="$ATOMICS_LIST"
1964 w32threads_deps="atomics_native"
1965 threads_if_any="$THREADS_LIST"
1966
1967 # subsystems
1968 dct_select="rdft"
1969 dirac_parse_select="golomb"
1970 error_resilience_select="me_cmp"
1971 faandct_deps="faan"
1972 faandct_select="fdctdsp"
1973 faanidct_deps="faan"
1974 faanidct_select="idctdsp"
1975 h264dsp_select="startcode"
1976 hevc_ps_select="golomb"
1977 intrax8_select="blockdsp idctdsp"
1978 mdct_select="fft"
1979 rdft_select="fft"
1980 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1981 mpeg_er_select="error_resilience"
1982 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1983 mpegaudiodsp_select="dct"
1984 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1985 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1986 vc1dsp_select="h264chroma qpeldsp startcode"
1987
1988 # decoders / encoders
1989 aac_decoder_select="adts_header imdct15 mdct sinewin"
1990 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1991 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1992 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1993 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1994 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1995 adpcm_g722_decoder_select="g722dsp"
1996 adpcm_g722_encoder_select="g722dsp"
1997 aic_decoder_select="golomb idctdsp"
1998 alac_encoder_select="lpc"
1999 als_decoder_select="bswapdsp"
2000 amrnb_decoder_select="lsp"
2001 amrwb_decoder_select="lsp"
2002 amv_decoder_select="sp5x_decoder"
2003 ape_decoder_select="bswapdsp"
2004 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2005 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2006 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2007 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2008 atrac1_decoder_select="mdct sinewin"
2009 atrac3_decoder_select="mdct"
2010 atrac3p_decoder_select="mdct sinewin"
2011 bink_decoder_select="blockdsp hpeldsp"
2012 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2013 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2014 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2015 clearvideo_decoder_select="idctdsp"
2016 cllc_decoder_select="bswapdsp"
2017 comfortnoise_encoder_select="lpc"
2018 cook_decoder_select="audiodsp mdct sinewin"
2019 cscd_decoder_select="lzo"
2020 cscd_decoder_suggest="zlib"
2021 dca_decoder_select="fmtconvert mdct"
2022 dds_decoder_select="texturedsp"
2023 dnxhd_decoder_select="blockdsp idctdsp"
2024 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2025 dvvideo_decoder_select="dvprofile idctdsp"
2026 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2027 dxa_decoder_deps="zlib"
2028 dxv_decoder_select="lzf texturedsp"
2029 eac3_decoder_select="ac3_decoder"
2030 eac3_encoder_select="ac3_encoder"
2031 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2032 eatgq_decoder_select="aandcttables idctdsp"
2033 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2034 exr_decoder_deps="zlib"
2035 ffv1_decoder_select="rangecoder"
2036 ffv1_encoder_select="rangecoder"
2037 ffvhuff_decoder_select="huffyuv_decoder"
2038 ffvhuff_encoder_select="huffyuv_encoder"
2039 fic_decoder_select="golomb"
2040 flac_decoder_select="flacdsp"
2041 flac_encoder_select="bswapdsp flacdsp lpc"
2042 flashsv_decoder_deps="zlib"
2043 flashsv_encoder_deps="zlib"
2044 flashsv2_decoder_deps="zlib"
2045 flv_decoder_select="h263_decoder"
2046 flv_encoder_select="h263_encoder"
2047 fourxm_decoder_select="blockdsp bswapdsp"
2048 fraps_decoder_select="bswapdsp huffman"
2049 g2m_decoder_deps="zlib"
2050 g2m_decoder_select="blockdsp idctdsp jpegtables"
2051 h261_decoder_select="mpeg_er mpegvideo"
2052 h261_encoder_select="aandcttables mpegvideoenc"
2053 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2054 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2055 h263i_decoder_select="h263_decoder"
2056 h263p_encoder_select="h263_encoder"
2057 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2058 h264_decoder_suggest="error_resilience"
2059 hap_decoder_select="snappy texturedsp"
2060 hap_encoder_deps="libsnappy"
2061 hap_encoder_select="texturedspenc"
2062 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2063 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2064 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2065 iac_decoder_select="imc_decoder"
2066 imc_decoder_select="bswapdsp fft mdct sinewin"
2067 indeo3_decoder_select="hpeldsp"
2068 indeo4_decoder_select="ividsp"
2069 indeo5_decoder_select="ividsp"
2070 interplay_video_decoder_select="hpeldsp"
2071 jpegls_decoder_select="mjpeg_decoder"
2072 jv_decoder_select="blockdsp"
2073 lagarith_decoder_select="huffyuvdsp"
2074 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2075 magicyuv_decoder_select="huffyuvdsp"
2076 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2077 metasound_decoder_select="lsp mdct sinewin"
2078 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2079 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2080 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2081 mjpegb_decoder_select="mjpeg_decoder"
2082 mlp_decoder_select="mlp_parser"
2083 motionpixels_decoder_select="bswapdsp"
2084 mp1_decoder_select="mpegaudio"
2085 mp1float_decoder_select="mpegaudio"
2086 mp2_decoder_select="mpegaudio"
2087 mp2float_decoder_select="mpegaudio"
2088 mp3_decoder_select="mpegaudio"
2089 mp3adu_decoder_select="mpegaudio"
2090 mp3adufloat_decoder_select="mpegaudio"
2091 mp3float_decoder_select="mpegaudio"
2092 mp3on4_decoder_select="mpegaudio"
2093 mp3on4float_decoder_select="mpegaudio"
2094 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2095 mpc8_decoder_select="mpegaudiodsp"
2096 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2097 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2098 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2099 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2100 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2101 mpeg4_encoder_select="h263_encoder"
2102 msa1_decoder_select="mss34dsp"
2103 msmpeg4v1_decoder_select="h263_decoder"
2104 msmpeg4v2_decoder_select="h263_decoder"
2105 msmpeg4v2_encoder_select="h263_encoder"
2106 msmpeg4v3_decoder_select="h263_decoder"
2107 msmpeg4v3_encoder_select="h263_encoder"
2108 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2109 mts2_decoder_select="mss34dsp"
2110 mxpeg_decoder_select="mjpeg_decoder"
2111 nellymoser_decoder_select="mdct sinewin"
2112 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2113 nuv_decoder_select="idctdsp lzo"
2114 on2avc_decoder_select="mdct"
2115 opus_decoder_deps="avresample"
2116 opus_decoder_select="imdct15"
2117 png_decoder_deps="zlib"
2118 png_encoder_deps="zlib"
2119 png_encoder_select="huffyuvencdsp"
2120 prores_decoder_select="idctdsp"
2121 prores_encoder_select="fdctdsp"
2122 qcelp_decoder_select="lsp"
2123 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2124 ra_144_encoder_select="audio_frame_queue lpc"
2125 ralf_decoder_select="golomb"
2126 rscc_decoder_deps="zlib"
2127 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2128 rv10_encoder_select="h263_encoder"
2129 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2130 rv20_encoder_select="h263_encoder"
2131 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2132 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2133 screenpresso_decoder_deps="zlib"
2134 sipr_decoder_select="lsp"
2135 sp5x_decoder_select="mjpeg_decoder"
2136 svq1_decoder_select="hpeldsp"
2137 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2138 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2139 svq3_decoder_suggest="zlib"
2140 tak_decoder_select="audiodsp"
2141 tdsc_decoder_deps="zlib"
2142 tdsc_decoder_select="mjpeg_decoder"
2143 theora_decoder_select="vp3_decoder"
2144 thp_decoder_select="mjpeg_decoder"
2145 tiff_decoder_suggest="zlib"
2146 tiff_encoder_suggest="zlib"
2147 truehd_decoder_select="mlp_decoder"
2148 truemotion2_decoder_select="bswapdsp"
2149 truespeech_decoder_select="bswapdsp"
2150 tscc_decoder_deps="zlib"
2151 txd_decoder_select="texturedsp"
2152 twinvq_decoder_select="mdct lsp sinewin"
2153 utvideo_decoder_select="bswapdsp huffyuvdsp"
2154 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2155 vble_decoder_select="huffyuvdsp"
2156 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2157 vc1image_decoder_select="vc1_decoder"
2158 vorbis_decoder_select="mdct"
2159 vorbis_encoder_select="mdct"
2160 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2161 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2162 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2163 vp6a_decoder_select="vp6_decoder"
2164 vp6f_decoder_select="vp6_decoder"
2165 vp7_decoder_select="h264pred videodsp vp8dsp"
2166 vp8_decoder_select="h264pred videodsp vp8dsp"
2167 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2168 webp_decoder_select="vp8_decoder"
2169 wmapro_decoder_select="mdct sinewin wma_freqs"
2170 wmav1_decoder_select="mdct sinewin wma_freqs"
2171 wmav1_encoder_select="mdct sinewin wma_freqs"
2172 wmav2_decoder_select="mdct sinewin wma_freqs"
2173 wmav2_encoder_select="mdct sinewin wma_freqs"
2174 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2175 wmv1_decoder_select="h263_decoder"
2176 wmv1_encoder_select="h263_encoder"
2177 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2178 wmv2_encoder_select="h263_encoder wmv2dsp"
2179 wmv3_decoder_select="vc1_decoder"
2180 wmv3image_decoder_select="wmv3_decoder"
2181 zerocodec_decoder_deps="zlib"
2182 zlib_decoder_deps="zlib"
2183 zlib_encoder_deps="zlib"
2184 zmbv_decoder_deps="zlib"
2185 zmbv_encoder_deps="zlib"
2186
2187 # hardware accelerators
2188 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2189 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2190 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2191 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2192
2193 h263_vaapi_hwaccel_deps="vaapi"
2194 h263_vaapi_hwaccel_select="h263_decoder"
2195 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2196 h264_cuvid_hwaccel_select="h264_decoder"
2197 h264_d3d11va_hwaccel_deps="d3d11va"
2198 h264_d3d11va_hwaccel_select="h264_decoder"
2199 h264_d3d11va2_hwaccel_deps="d3d11va"
2200 h264_d3d11va2_hwaccel_select="h264_decoder"
2201 h264_dxva2_hwaccel_deps="dxva2"
2202 h264_dxva2_hwaccel_select="h264_decoder"
2203 h264_mmal_hwaccel_deps="mmal"
2204 h264_qsv_hwaccel_deps="libmfx"
2205 h264_vaapi_hwaccel_deps="vaapi"
2206 h264_vaapi_hwaccel_select="h264_decoder"
2207 h264_vda_hwaccel_deps="vda"
2208 h264_vda_hwaccel_select="h264_decoder"
2209 h264_vda_old_hwaccel_deps="vda"
2210 h264_vda_old_hwaccel_select="h264_decoder"
2211 h264_vdpau_hwaccel_deps="vdpau"
2212 h264_vdpau_hwaccel_select="h264_decoder"
2213 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2214 hevc_d3d11va_hwaccel_select="hevc_decoder"
2215 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2216 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2217 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2218 hevc_dxva2_hwaccel_select="hevc_decoder"
2219 hevc_qsv_hwaccel_deps="libmfx"
2220 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2221 hevc_vaapi_hwaccel_select="hevc_decoder"
2222 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2223 hevc_vdpau_hwaccel_select="hevc_decoder"
2224 mpeg1_vdpau_hwaccel_deps="vdpau"
2225 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2226 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2227 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2228 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2229 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2230 mpeg2_dxva2_hwaccel_deps="dxva2"
2231 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2232 mpeg2_mmal_hwaccel_deps="mmal"
2233 mpeg2_qsv_hwaccel_deps="libmfx"
2234 mpeg2_vaapi_hwaccel_deps="vaapi"
2235 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2236 mpeg2_vdpau_hwaccel_deps="vdpau"
2237 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2238 mpeg4_vaapi_hwaccel_deps="vaapi"
2239 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2240 mpeg4_vdpau_hwaccel_deps="vdpau"
2241 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2242 vc1_d3d11va_hwaccel_deps="d3d11va"
2243 vc1_d3d11va_hwaccel_select="vc1_decoder"
2244 vc1_d3d11va2_hwaccel_deps="d3d11va"
2245 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2246 vc1_dxva2_hwaccel_deps="dxva2"
2247 vc1_dxva2_hwaccel_select="vc1_decoder"
2248 vc1_mmal_hwaccel_deps="mmal"
2249 vc1_qsv_hwaccel_deps="libmfx"
2250 vc1_vaapi_hwaccel_deps="vaapi"
2251 vc1_vaapi_hwaccel_select="vc1_decoder"
2252 vc1_vdpau_hwaccel_deps="vdpau"
2253 vc1_vdpau_hwaccel_select="vc1_decoder"
2254 vp8_qsv_hwaccel_deps="libmfx"
2255 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2256 vp8_vaapi_hwaccel_select="vp8_decoder"
2257 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2258 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2259 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2260 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2261 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2262
2263 # hardware-accelerated codecs
2264 nvenc_deps_any="libdl LoadLibrary"
2265 omx_deps="libdl pthreads"
2266 omx_rpi_select="omx"
2267 qsv_deps="libmfx"
2268 qsvdec_select="qsv"
2269 qsvenc_select="qsv"
2270 vaapi_encode_deps="vaapi"
2271
2272 hwupload_cuda_filter_deps="cuda"
2273 scale_npp_filter_deps="cuda libnpp"
2274
2275 h264_mmal_decoder_deps="mmal"
2276 h264_nvenc_encoder_deps="nvenc"
2277 h264_omx_encoder_deps="omx"
2278 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2279 h264_qsv_encoder_select="qsvenc"
2280 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2281 h264_vaapi_encoder_select="vaapi_encode golomb"
2282 hevc_nvenc_encoder_deps="nvenc"
2283 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2284 hevc_qsv_encoder_select="hevc_ps qsvenc"
2285 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2286 hevc_vaapi_encoder_select="vaapi_encode golomb"
2287 mjpeg_qsv_encoder_deps="libmfx"
2288 mjpeg_qsv_encoder_select="qsvenc"
2289 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2290 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2291 mpeg2_mmal_decoder_deps="mmal"
2292 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2293 mpeg2_qsv_encoder_select="qsvenc"
2294 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2295 mpeg2_vaapi_encoder_select="vaapi_encode"
2296 mpeg4_omx_encoder_deps="omx"
2297 vc1_mmal_decoder_deps="mmal"
2298 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2299 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2300 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2301 vp8_vaapi_encoder_select="vaapi_encode"
2302 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2303 vp9_vaapi_encoder_select="vaapi_encode"
2304
2305 nvenc_h264_encoder_select="h264_nvenc_encoder"
2306 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2307
2308 # parsers
2309 aac_parser_select="adts_header"
2310 h264_parser_select="golomb h264dsp h264parse"
2311 hevc_parser_select="hevc_ps"
2312 mpegaudio_parser_select="mpegaudioheader"
2313 mpegvideo_parser_select="mpegvideo"
2314 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2315 vc1_parser_select="vc1dsp"
2316
2317 # bitstream_filters
2318 aac_adtstoasc_bsf_select="adts_header"
2319 mjpeg2jpeg_bsf_select="jpegtables"
2320
2321 # external libraries
2322 avisynth_deps="LoadLibrary"
2323 avxsynth_deps="libdl"
2324 avisynth_demuxer_deps_any="avisynth avxsynth"
2325 avisynth_demuxer_select="riffdec"
2326 libdcadec_decoder_deps="libdcadec"
2327 libfaac_encoder_deps="libfaac"
2328 libfaac_encoder_select="audio_frame_queue"
2329 libfdk_aac_decoder_deps="libfdk_aac"
2330 libfdk_aac_encoder_deps="libfdk_aac"
2331 libfdk_aac_encoder_select="audio_frame_queue"
2332 libgsm_decoder_deps="libgsm"
2333 libgsm_encoder_deps="libgsm"
2334 libgsm_ms_decoder_deps="libgsm"
2335 libgsm_ms_encoder_deps="libgsm"
2336 libilbc_decoder_deps="libilbc"
2337 libilbc_encoder_deps="libilbc"
2338 libkvazaar_encoder_deps="libkvazaar"
2339 libmp3lame_encoder_deps="libmp3lame"
2340 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2341 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2342 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2343 libopencore_amrnb_encoder_select="audio_frame_queue"
2344 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2345 libopenh264_decoder_deps="libopenh264"
2346 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2347 libopenh264_encoder_deps="libopenh264"
2348 libopenjpeg_decoder_deps="libopenjpeg"
2349 libopenjpeg_encoder_deps="libopenjpeg"
2350 libopus_decoder_deps="libopus"
2351 libopus_encoder_deps="libopus"
2352 libopus_encoder_select="audio_frame_queue"
2353 libschroedinger_decoder_deps="libschroedinger"
2354 libschroedinger_encoder_deps="libschroedinger"
2355 libspeex_decoder_deps="libspeex"
2356 libspeex_encoder_deps="libspeex"
2357 libspeex_encoder_select="audio_frame_queue"
2358 libtheora_encoder_deps="libtheora"
2359 libtwolame_encoder_deps="libtwolame"
2360 libvo_aacenc_encoder_deps="libvo_aacenc"
2361 libvo_aacenc_encoder_select="audio_frame_queue"
2362 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2363 libvorbis_encoder_deps="libvorbis"
2364 libvorbis_encoder_select="audio_frame_queue"
2365 libvpx_vp8_decoder_deps="libvpx"
2366 libvpx_vp8_encoder_deps="libvpx"
2367 libvpx_vp9_decoder_deps="libvpx"
2368 libvpx_vp9_encoder_deps="libvpx"
2369 libwavpack_encoder_deps="libwavpack"
2370 libwavpack_encoder_select="audio_frame_queue"
2371 libwebp_encoder_deps="libwebp"
2372 libx262_encoder_deps="libx262"
2373 libx264_encoder_deps="libx264"
2374 libx265_encoder_deps="libx265"
2375 libxavs_encoder_deps="libxavs"
2376 libxvid_encoder_deps="libxvid mkstemp"
2377
2378 # demuxers / muxers
2379 ac3_demuxer_select="ac3_parser"
2380 asf_demuxer_select="riffdec"
2381 asf_muxer_select="riffenc"
2382 asf_stream_muxer_select="asf_muxer"
2383 avi_demuxer_select="iso_media riffdec"
2384 avi_muxer_select="riffenc"
2385 caf_demuxer_select="iso_media riffdec"
2386 dash_muxer_select="mp4_muxer"
2387 dirac_demuxer_select="dirac_parser"
2388 dv_demuxer_select="dvprofile"
2389 dv_muxer_select="dvprofile"
2390 dxa_demuxer_select="riffdec"
2391 eac3_demuxer_select="ac3_parser"
2392 f4v_muxer_select="mov_muxer"
2393 flac_demuxer_select="flac_parser"
2394 hds_muxer_select="flv_muxer"
2395 hls_muxer_select="mpegts_muxer"
2396 ipod_muxer_select="mov_muxer"
2397 ismv_muxer_select="mov_muxer"
2398 matroska_audio_muxer_select="matroska_muxer"
2399 matroska_demuxer_select="iso_media riffdec"
2400 matroska_demuxer_suggest="bzlib lzo zlib"
2401 matroska_muxer_select="iso_media riffenc"
2402 mmf_muxer_select="riffenc"
2403 mov_demuxer_select="iso_media riffdec"
2404 mov_demuxer_suggest="zlib"
2405 mov_muxer_select="iso_media riffenc rtpenc_chain"
2406 mp3_demuxer_select="mpegaudio_parser"
2407 mp3_muxer_select="mpegaudioheader"
2408 mp4_muxer_select="mov_muxer"
2409 mpegts_demuxer_select="iso_media"
2410 mpegts_muxer_select="adts_muxer latm_muxer"
2411 mpegtsraw_demuxer_select="mpegts_demuxer"
2412 mxf_d10_muxer_select="mxf_muxer"
2413 nut_muxer_select="riffenc"
2414 nuv_demuxer_select="riffdec"
2415 oga_muxer_select="ogg_muxer"
2416 ogg_demuxer_select="dirac_parse"
2417 opus_muxer_select="ogg_muxer"
2418 psp_muxer_select="mov_muxer"
2419 rtp_demuxer_select="sdp_demuxer"
2420 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2421 rtsp_demuxer_select="http_protocol rtpdec"
2422 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2423 sap_demuxer_select="sdp_demuxer"
2424 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2425 sdp_demuxer_select="rtpdec"
2426 smoothstreaming_muxer_select="ismv_muxer"
2427 spdif_demuxer_select="adts_header"
2428 spdif_muxer_select="adts_header"
2429 spx_muxer_select="ogg_muxer"
2430 swf_demuxer_suggest="zlib"
2431 tak_demuxer_select="tak_parser"
2432 tg2_muxer_select="mov_muxer"
2433 tgp_muxer_select="mov_muxer"
2434 w64_demuxer_select="wav_demuxer"
2435 wav_demuxer_select="riffdec"
2436 wav_muxer_select="riffenc"
2437 webm_muxer_select="iso_media riffenc"
2438 wtv_demuxer_select="mpegts_demuxer riffdec"
2439 xmv_demuxer_select="riffdec"
2440 xwma_demuxer_select="riffdec"
2441
2442 # indevs / outdevs
2443 alsa_indev_deps="alsa"
2444 alsa_outdev_deps="alsa"
2445 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2446 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2447 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2448 dv1394_indev_deps="dv1394"
2449 dv1394_indev_select="dv_demuxer"
2450 fbdev_indev_deps="linux_fb_h"
2451 jack_indev_deps="libjack"
2452 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2453 libcdio_indev_deps="libcdio"
2454 libdc1394_indev_deps="libdc1394"
2455 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2456 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2457 pulse_indev_deps="libpulse"
2458 sndio_indev_deps="sndio"
2459 sndio_outdev_deps="sndio"
2460 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2461 vfwcap_indev_deps="vfw32 vfwcap_defines"
2462 xcbgrab_indev_deps="libxcb libxcb_shape"
2463 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2464
2465 # protocols
2466 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2467 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2468 ffrtmpcrypt_protocol_select="tcp_protocol"
2469 ffrtmphttp_protocol_conflict="librtmp_protocol"
2470 ffrtmphttp_protocol_select="http_protocol"
2471 gopher_protocol_select="network"
2472 http_protocol_select="tcp_protocol"
2473 http_protocol_suggest="zlib"
2474 httpproxy_protocol_select="tcp_protocol"
2475 httpproxy_protocol_suggest="zlib"
2476 https_protocol_select="tls_protocol"
2477 https_protocol_suggest="zlib"
2478 icecast_protocol_select="http_protocol"
2479 librtmp_protocol_deps="librtmp"
2480 librtmpe_protocol_deps="librtmp"
2481 librtmps_protocol_deps="librtmp"
2482 librtmpt_protocol_deps="librtmp"
2483 librtmpte_protocol_deps="librtmp"
2484 mmsh_protocol_select="http_protocol"
2485 mmst_protocol_select="network"
2486 rtmp_protocol_conflict="librtmp_protocol"
2487 rtmp_protocol_select="tcp_protocol"
2488 rtmp_protocol_suggest="zlib"
2489 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2490 rtmpe_protocol_suggest="zlib"
2491 rtmps_protocol_conflict="librtmp_protocol"
2492 rtmps_protocol_select="tls_protocol"
2493 rtmps_protocol_suggest="zlib"
2494 rtmpt_protocol_select="ffrtmphttp_protocol"
2495 rtmpt_protocol_suggest="zlib"
2496 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2497 rtmpte_protocol_suggest="zlib"
2498 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2499 rtmpts_protocol_suggest="zlib"
2500 rtp_protocol_select="udp_protocol"
2501 sctp_protocol_deps="struct_sctp_event_subscribe"
2502 sctp_protocol_select="network"
2503 srtp_protocol_select="rtp_protocol srtp"
2504 tcp_protocol_select="network"
2505 tls_protocol_deps_any="gnutls openssl"
2506 tls_protocol_select="tcp_protocol"
2507 udp_protocol_select="network"
2508 unix_protocol_deps="sys_un_h"
2509 unix_protocol_select="network"
2510
2511 # filters
2512 asyncts_filter_deps="avresample"
2513 blackframe_filter_deps="gpl"
2514 boxblur_filter_deps="gpl"
2515 bs2b_filter_deps="libbs2b"
2516 cropdetect_filter_deps="gpl"
2517 deinterlace_qsv_filter_deps="libmfx"
2518 deinterlace_vaapi_filter_deps="vaapi"
2519 delogo_filter_deps="gpl"
2520 drawtext_filter_deps="libfreetype"
2521 drawtext_filter_suggest="libfontconfig"
2522 frei0r_filter_deps="frei0r libdl"
2523 frei0r_src_filter_deps="frei0r libdl"
2524 hdcd_filter_deps="libhdcd"
2525 hqdn3d_filter_deps="gpl"
2526 interlace_filter_deps="gpl"
2527 movie_filter_deps="avcodec avformat"
2528 ocv_filter_deps="libopencv"
2529 resample_filter_deps="avresample"
2530 scale_filter_deps="swscale"
2531 scale_qsv_filter_deps="libmfx"
2532 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2533
2534 # examples
2535 decode_audio_example_deps="avcodec avutil"
2536 decode_video_example_deps="avcodec avutil"
2537 encode_audio_example_deps="avcodec avutil"
2538 encode_video_example_deps="avcodec avutil"
2539 filter_audio_example_deps="avfilter avutil"
2540 metadata_example_deps="avformat avutil"
2541 output_example_deps="avcodec avformat avresample avutil swscale"
2542 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2543 transcode_aac_example_deps="avcodec avformat avresample"
2544
2545 # EXTRALIBS_LIST
2546 cpu_init_extralibs="pthreads_extralibs"
2547 cws2fws_extralibs="zlib_extralibs"
2548
2549 # libraries, in linking order
2550 avcodec_deps="avutil"
2551 avcodec_select="null_bsf"
2552 avdevice_deps="avformat avcodec avutil"
2553 avfilter_deps="avutil"
2554 avformat_deps="avcodec avutil"
2555 avformat_suggest="network"
2556 avresample_deps="avutil"
2557 swscale_deps="avutil"
2558
2559 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2560 avdevice_extralibs="libm_extralibs"
2561 avformat_extralibs="libm_extralibs"
2562 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2563 avresample_extralibs="libm_extralibs"
2564 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2565 swscale_extralibs="libm_extralibs"
2566
2567 # programs
2568 avconv_deps="avcodec avfilter avformat avresample swscale"
2569 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2570                fps_filter null_filter resample_filter scale_filter
2571                trim_filter"
2572 avconv_suggest="psapi shell32"
2573 avplay_deps="avcodec avfilter avformat avresample sdl"
2574 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2575 avplay_suggest="shell32"
2576 avprobe_deps="avcodec avformat"
2577 avprobe_suggest="shell32"
2578
2579 # documentation
2580 pod2man_deps="doc"
2581 texi2html_deps="doc"
2582
2583 # default parameters
2584
2585 logfile="avbuild/config.log"
2586
2587 # installation paths
2588 prefix_default="/usr/local"
2589 bindir_default='${prefix}/bin'
2590 datadir_default='${prefix}/share/avconv'
2591 docdir_default='${prefix}/share/doc/libav'
2592 incdir_default='${prefix}/include'
2593 libdir_default='${prefix}/lib'
2594 mandir_default='${prefix}/share/man'
2595 shlibdir_default="$libdir_default"
2596
2597 # toolchain
2598 ar_default="ar"
2599 cc_default="gcc"
2600 host_cc_default="gcc"
2601 x86asmexe_default="nasm"
2602 ln_s="ln -s -f"
2603 nm_default="nm -g"
2604 pkg_config_default=pkg-config
2605 ranlib="ranlib"
2606 strip="strip"
2607 version_script='--version-script'
2608
2609 # machine
2610 arch_default=$(uname -m)
2611 cpu="generic"
2612 intrinsics="none"
2613
2614 # OS
2615 target_os_default=$(tolower $(uname -s))
2616 host_os=$target_os_default
2617
2618 # configurable options
2619 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2620
2621 enable asm
2622 enable debug
2623 enable doc
2624 enable faan faandct faanidct
2625 enable optimizations
2626 enable safe_bitstream_reader
2627 enable static
2628 enable swscale_alpha
2629 enable valgrind_backtrace
2630
2631 # By default, enable only those hwaccels that have no external dependencies.
2632 enable d3d11va dxva2 vda vdpau
2633
2634 # internal components are enabled by default
2635 enable $EXTRALIBS_LIST
2636
2637 # Avoid external, non-system, libraries getting enabled by dependency resolution
2638 disable $EXTERNAL_LIBRARY_LIST
2639
2640 # build settings
2641 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2642 LIBPREF="lib"
2643 LIBSUF=".a"
2644 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2645 SLIBPREF="lib"
2646 SLIBSUF=".so"
2647 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2648 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2649 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2650 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2651 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2652 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2653 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2654
2655 asflags_filter=echo
2656 cflags_filter=echo
2657 ldflags_filter=echo
2658
2659 AS_C='-c'
2660 AS_O='-o $@'
2661 CC_C='-c'
2662 CC_E='-E -o $@'
2663 CC_O='-o $@'
2664 OBJCC_C='-c'
2665 OBJCC_E='-E -o $@'
2666 OBJCC_O='-o $@'
2667 X86ASM_O='-o $@'
2668 LD_O='-o $@'
2669 LD_LIB='-l%'
2670 LD_PATH='-L'
2671 HOSTCC_C='-c'
2672 HOSTCC_E='-E -o $@'
2673 HOSTCC_O='-o $@'
2674 HOSTLD_O='-o $@'
2675
2676 host_extralibs='-lm'
2677 host_cflags_filter=echo
2678 host_ldflags_filter=echo
2679
2680 target_path='$(CURDIR)'
2681
2682 # since the object filename is not given with the -MM flag, the compiler
2683 # is only able to print the basename, and we must add the path ourselves
2684 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2685 DEPFLAGS='-MM'
2686
2687 mkdir -p avbuild
2688
2689 # find source path
2690 if test -f configure; then
2691     source_path=.
2692 else
2693     source_path=$(cd $(dirname "$0"); pwd)
2694     echo "$source_path" | grep -q '[[:blank:]]' &&
2695         die "Out of tree builds are impossible with whitespace in source path."
2696     test -e "$source_path/config.h" &&
2697         die "Out of tree builds are impossible with config.h in source dir."
2698 fi
2699
2700 for v in "$@"; do
2701     r=${v#*=}
2702     l=${v%"$r"}
2703     r=$(sh_quote "$r")
2704     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2705 done
2706
2707 find_things(){
2708     thing=$1
2709     pattern=$2
2710     file=$source_path/$3
2711     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2712 }
2713
2714 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2715 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2716 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2717 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2718 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2719 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2720 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2721 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2722 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2723
2724 find_things_extern(){
2725     thing=$1
2726     pattern=$2
2727     file=$source_path/$3
2728     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2729 }
2730
2731 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2732 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2733
2734 AVCODEC_COMPONENTS_LIST="
2735     $BSF_LIST
2736     $DECODER_LIST
2737     $ENCODER_LIST
2738     $HWACCEL_LIST
2739     $PARSER_LIST
2740 "
2741
2742 AVDEVICE_COMPONENTS_LIST="
2743     $INDEV_LIST
2744     $OUTDEV_LIST
2745 "
2746
2747 AVFILTER_COMPONENTS_LIST="
2748     $FILTER_LIST
2749 "
2750
2751 AVFORMAT_COMPONENTS_LIST="
2752     $DEMUXER_LIST
2753     $MUXER_LIST
2754     $PROTOCOL_LIST
2755 "
2756
2757 ALL_COMPONENTS="
2758     $AVCODEC_COMPONENTS_LIST
2759     $AVDEVICE_COMPONENTS_LIST
2760     $AVFILTER_COMPONENTS_LIST
2761     $AVFORMAT_COMPONENTS_LIST
2762 "
2763
2764 for n in $COMPONENT_LIST; do
2765     v=$(toupper ${n%s})_LIST
2766     eval enable \$$v
2767     eval ${n}_if_any="\$$v"
2768 done
2769
2770 enable $ARCH_EXT_LIST
2771
2772 die_unknown(){
2773     echo "Unknown option \"$1\"."
2774     echo "See $0 --help for available options."
2775     exit 1
2776 }
2777
2778 print_3_columns() {
2779     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2780 }
2781
2782 show_list() {
2783     suffix=_$1
2784     shift
2785     echo $* | sed s/$suffix//g | print_3_columns
2786     exit 0
2787 }
2788
2789 rand_list(){
2790     IFS=', '
2791     set -- $*
2792     unset IFS
2793     for thing; do
2794         comp=${thing%:*}
2795         prob=${thing#$comp}
2796         prob=${prob#:}
2797         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2798         echo "prob ${prob:-0.5}"
2799         printf '%s\n' $comp
2800     done
2801 }
2802
2803 do_random(){
2804     action=$1
2805     shift
2806     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2807     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2808 }
2809
2810 for opt do
2811     optval="${opt#*=}"
2812     case "$opt" in
2813         --extra-ldflags=*)
2814             add_ldflags $optval
2815         ;;
2816         --extra-ldexeflags=*)
2817             add_ldexeflags $optval
2818         ;;
2819         --extra-ldsoflags=*)
2820             add_ldsoflags $optval
2821         ;;
2822         --extra-libs=*)
2823             add_extralibs $optval
2824         ;;
2825         --disable-devices)
2826             disable $INDEV_LIST $OUTDEV_LIST
2827         ;;
2828         --enable-debug=*)
2829             debuglevel="$optval"
2830         ;;
2831         --disable-programs)
2832             disable $PROGRAM_LIST
2833         ;;
2834         --disable-everything)
2835             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2836         ;;
2837         --disable-all)
2838             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2839             disable $LIBRARY_LIST $PROGRAM_LIST doc
2840         ;;
2841         --enable-random|--disable-random)
2842             action=${opt%%-random}
2843             do_random ${action#--} $COMPONENT_LIST
2844         ;;
2845         --enable-random=*|--disable-random=*)
2846             action=${opt%%-random=*}
2847             do_random ${action#--} $optval
2848         ;;
2849         --enable-*=*|--disable-*=*)
2850             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2851             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2852             eval list=\$$(toupper $thing)_LIST
2853             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2854             $action $(filter "$name" $list)
2855         ;;
2856         --enable-avserver|--disable-avserver*)
2857             warn "avserver has been removed, the ${opt} option is only"\
2858                  "provided for compatibility and will be removed in the future"
2859         ;;
2860         --enable-yasm|--disable-yasm)
2861             warn "The ${opt} option is only provided for compatibility and will be\n"\
2862                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2863             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2864         ;;
2865         --enable-?*|--disable-?*)
2866             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2867             if is_in $option $COMPONENT_LIST; then
2868                 test $action = disable && action=unset
2869                 eval $action \$$(toupper ${option%s})_LIST
2870             elif is_in $option $CMDLINE_SELECT; then
2871                 $action $option
2872             else
2873                 die_unknown $opt
2874             fi
2875         ;;
2876         --list-*)
2877             NAME="${opt#--list-}"
2878             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2879             NAME=${NAME%s}
2880             eval show_list $NAME \$$(toupper $NAME)_LIST
2881         ;;
2882         --help|-h) show_help
2883         ;;
2884         --quiet|-q) quiet=yes
2885         ;;
2886         *)
2887             optname="${opt%%=*}"
2888             optname="${optname#--}"
2889             optname=$(echo "$optname" | sed 's/-/_/g')
2890             if is_in $optname $CMDLINE_SET; then
2891                 eval $optname='$optval'
2892             elif is_in $optname $CMDLINE_APPEND; then
2893                 append $optname "$optval"
2894             else
2895                 die_unknown $opt
2896             fi
2897         ;;
2898     esac
2899 done
2900
2901 for e in $env; do
2902     eval "export $e"
2903 done
2904
2905 disabled logging && logfile=/dev/null
2906
2907 # Die early if licensing-related configure options are incompatible.
2908 die_license_disabled() {
2909     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2910 }
2911
2912 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2913 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2914 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2915
2916 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2917
2918 enabled_all gnutls openssl &&
2919     die "GnuTLS and OpenSSL must not be enabled at the same time."
2920
2921 # Disable all the library-specific components if the library itself
2922 # is disabled, see AVCODEC_LIST and following _LIST variables.
2923
2924 disable_components(){
2925     disabled ${1} && disable $(
2926         eval components="\$$(toupper ${1})_COMPONENTS"
2927         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2928     )
2929 }
2930
2931 map 'disable_components $v' $LIBRARY_LIST
2932
2933 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2934 set >> $logfile
2935
2936 case "$toolchain" in
2937     *-asan)
2938         cc_default="${toolchain%-asan}"
2939         add_cflags  -fsanitize=address
2940         add_ldflags -fsanitize=address
2941     ;;
2942     *-msan)
2943         cc_default="${toolchain%-msan}"
2944         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2945         add_ldflags -fsanitize=memory
2946     ;;
2947     *-tsan)
2948         cc_default="${toolchain%-tsan}"
2949         add_cflags  -fsanitize=thread -fPIE
2950         add_ldflags -fsanitize=thread -pie
2951         case "$toolchain" in
2952             gcc-tsan)
2953                 add_cflags  -fPIC
2954                 add_ldflags -fPIC
2955                 ;;
2956         esac
2957     ;;
2958     *-usan)
2959         cc_default="${toolchain%-usan}"
2960         add_cflags  -fsanitize=undefined
2961         add_ldflags -fsanitize=undefined
2962         case "$toolchain" in
2963             clang-usan)
2964                 add_cflags -O1
2965                 ;;
2966         esac
2967     ;;
2968     valgrind-*)
2969         target_exec_default="valgrind"
2970         case "$toolchain" in
2971             valgrind-massif)
2972                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2973                 ;;
2974             valgrind-memcheck)
2975                 target_exec_args="--track-origins=yes --leak-check=full"
2976                 ;;
2977         esac
2978     ;;
2979     msvc)
2980         # Check whether the current MSVC version needs the C99 converter.
2981         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2982         # support enough of C99 to build libav. Default to the new
2983         # behaviour if the regexp was unable to match anything, since this
2984         # successfully parses the version number of existing supported
2985         # versions that require the converter (MSVC 2010 and 2012).
2986         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2987         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2988             cc_default="cl"
2989         else
2990             cc_default="c99wrap cl"
2991         fi
2992         ld_default="$source_path/compat/windows/mslink"
2993         nm_default="dumpbin -symbols"
2994         ar_default="lib"
2995         case "$arch" in
2996         arm*)
2997             as_default="armasm"
2998             ;;
2999         esac
3000         target_os_default="win32"
3001         # Use a relative path for TMPDIR. This makes sure all the
3002         # ffconf temp files are written with a relative path, avoiding
3003         # issues with msys/win32 path conversion for MSVC parameters
3004         # such as -Fo<file> or -out:<file>.
3005         TMPDIR=.
3006     ;;
3007     icl)
3008         cc_default="icl"
3009         ld_default="xilink"
3010         nm_default="dumpbin -symbols"
3011         ar_default="xilib"
3012         target_os_default="win32"
3013         TMPDIR=.
3014     ;;
3015     gcov)
3016         add_cflags  -fprofile-arcs -ftest-coverage
3017         add_ldflags -fprofile-arcs -ftest-coverage
3018     ;;
3019     llvm-cov)
3020         add_cflags -fprofile-arcs -ftest-coverage
3021         add_ldflags --coverage
3022     ;;
3023     hardened)
3024         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3025         add_cflags   -fno-strict-overflow -fstack-protector-all
3026         add_ldflags  -Wl,-z,relro -Wl,-z,now
3027     ;;
3028     ?*)
3029         die "Unknown toolchain $toolchain"
3030     ;;
3031 esac
3032
3033 test -n "$cross_prefix" && enable cross_compile
3034
3035 if enabled cross_compile; then
3036     test -n "$arch" && test -n "$target_os" ||
3037         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3038 fi
3039
3040 ar_default="${cross_prefix}${ar_default}"
3041 cc_default="${cross_prefix}${cc_default}"
3042 objcc_default="${cross_prefix}${objcc_default}"
3043 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3044 nm_default="${cross_prefix}${nm_default}"
3045 pkg_config_default="${cross_prefix}${pkg_config_default}"
3046 ranlib="${cross_prefix}${ranlib}"
3047 strip="${cross_prefix}${strip}"
3048
3049 sysinclude_default="${sysroot}/usr/include"
3050
3051 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3052 enabled cross_compile || host_cc_default=$cc
3053 set_default host_cc
3054
3055 if ! $pkg_config --version >/dev/null 2>&1; then
3056     warn "$pkg_config not found, library detection may fail."
3057     pkg_config=false
3058 fi
3059
3060 exesuf() {
3061     case $1 in
3062         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3063     esac
3064 }
3065
3066 EXESUF=$(exesuf $target_os)
3067 HOSTEXESUF=$(exesuf $host_os)
3068
3069 # set temporary file name
3070 : ${TMPDIR:=$TEMPDIR}
3071 : ${TMPDIR:=$TMP}
3072 : ${TMPDIR:=/tmp}
3073
3074 if ! check_cmd mktemp -u XXXXXX; then
3075     # simple replacement for missing mktemp
3076     # NOT SAFE FOR GENERAL USE
3077     mktemp(){
3078         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3079         echo "$tmpname"
3080         mkdir "$tmpname"
3081     }
3082 fi
3083
3084 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3085     die "Unable to create temporary directory in $TMPDIR."
3086
3087 tmpfile(){
3088     tmp="${AVTMPDIR}/test"$2
3089     (set -C; exec > $tmp) 2> /dev/null ||
3090         die "Unable to create temporary file in $AVTMPDIR."
3091     eval $1=$tmp
3092 }
3093
3094 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3095 trap 'exit 2' INT
3096
3097 tmpfile TMPASM .asm
3098 tmpfile TMPC   .c
3099 tmpfile TMPE   $EXESUF
3100 tmpfile TMPH   .h
3101 tmpfile TMPO   .o
3102 tmpfile TMPS   .S
3103 tmpfile TMPSH  .sh
3104 tmpfile TMPV   .ver
3105
3106 unset -f mktemp
3107
3108 chmod +x $TMPE
3109
3110 # make sure we can execute files in $TMPDIR
3111 cat > $TMPSH 2>> $logfile <<EOF
3112 #! /bin/sh
3113 EOF
3114 chmod +x $TMPSH >> $logfile 2>&1
3115 if ! $TMPSH >> $logfile 2>&1; then
3116     cat <<EOF
3117 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3118 variable to another directory and make sure that it is not mounted noexec.
3119 EOF
3120     die "Sanity test failed."
3121 fi
3122
3123 armasm_flags(){
3124     for flag; do
3125         case $flag in
3126             # Filter out MSVC cl.exe options from cflags that shouldn't
3127             # be passed to gas-preprocessor
3128             -M[TD]*)                                            ;;
3129             *)                  echo $flag                      ;;
3130         esac
3131    done
3132 }
3133
3134 ccc_flags(){
3135     for flag; do
3136         case $flag in
3137             -std=c99)           echo -c99                       ;;
3138             -mcpu=*)            echo -arch ${flag#*=}           ;;
3139             -mieee)             echo -ieee                      ;;
3140             -O*|-fast)          echo $flag                      ;;
3141             -fno-math-errno)    echo -assume nomath_errno       ;;
3142             -g)                 echo -g3                        ;;
3143             -Wall)              echo -msg_enable level2         ;;
3144             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3145             -Wl,*)              echo $flag                      ;;
3146             -f*|-W*)                                            ;;
3147             *)                  echo $flag                      ;;
3148         esac
3149    done
3150 }
3151
3152 cparser_flags(){
3153     for flag; do
3154         case $flag in
3155             -Wno-switch)             echo -Wno-switch-enum ;;
3156             -Wno-format-zero-length) ;;
3157             -Wdisabled-optimization) ;;
3158             -Wno-pointer-sign)       echo -Wno-other ;;
3159             *)                       echo $flag ;;
3160         esac
3161     done
3162 }
3163
3164 msvc_common_flags(){
3165     for flag; do
3166         case $flag in
3167             # In addition to specifying certain flags under the compiler
3168             # specific filters, they must be specified here as well or else the
3169             # generic catch all at the bottom will print the original flag.
3170             -Wall)                ;;
3171             -Wextra)              ;;
3172             -std=c99)             ;;
3173             # Common flags
3174             -fomit-frame-pointer) ;;
3175             -g)                   echo -Z7 ;;
3176             -fno-math-errno)      ;;
3177             -fno-common)          ;;
3178             -fno-signed-zeros)    ;;
3179             -fPIC)                ;;
3180             -mthumb)              ;;
3181             -march=*)             ;;
3182             -lz)                  echo zlib.lib ;;
3183             -lx264)               echo libx264.lib ;;
3184             -l*)                  echo ${flag#-l}.lib ;;
3185             -L*)                  echo -libpath:${flag#-L} ;;
3186             *)                    echo $flag ;;
3187         esac
3188     done
3189 }
3190
3191 msvc_flags(){
3192     msvc_common_flags "$@"
3193     for flag; do
3194         case $flag in
3195             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3196                                        -wd4554 ;;
3197             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3198                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3199                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3200                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3201         esac
3202     done
3203 }
3204
3205 icl_flags(){
3206     msvc_common_flags "$@"
3207     for flag; do
3208         case $flag in
3209             # Despite what Intel's documentation says -Wall, which is supported
3210             # on Windows, does enable remarks so disable them here.
3211             -Wall)                echo $flag -Qdiag-disable:remark ;;
3212             -std=c99)             echo -Qstd=c99 ;;
3213         esac
3214     done
3215 }
3216
3217 pgi_flags(){
3218     for flag; do
3219         case $flag in
3220             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3221             -fomit-frame-pointer) echo -Mnoframe ;;
3222             -g)                   echo -gopt ;;
3223             *)                    echo $flag ;;
3224         esac
3225     done
3226 }
3227
3228 suncc_flags(){
3229     for flag; do
3230         case $flag in
3231             -march=*|-mcpu=*)
3232                 case "${flag#*=}" in
3233                     native)                   echo -xtarget=native       ;;
3234                     v9|niagara)               echo -xarch=sparc          ;;
3235                     ultrasparc)               echo -xarch=sparcvis       ;;
3236                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3237                     i586|pentium)             echo -xchip=pentium        ;;
3238                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3239                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3240                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3241                     pentium4*)          echo -xtarget=pentium4           ;;
3242                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3243                     *-sse3)             echo -xarch=sse3                 ;;
3244                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3245                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3246                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3247                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3248                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3249                     k8|opteron|athlon64|athlon-fx)
3250                                                echo -xarch=sse2a         ;;
3251                     athlon*)                   echo -xarch=pentium_proa  ;;
3252                 esac
3253                 ;;
3254             -std=c99)             echo -xc99              ;;
3255             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3256             -fPIC)                echo -KPIC -xcode=pic32 ;;
3257             -W*,*)                echo $flag              ;;
3258             -f*-*|-W*|-mimpure-text)                      ;;
3259             -shared)              echo -G                 ;;
3260             *)                    echo $flag              ;;
3261         esac
3262     done
3263 }
3264
3265 tms470_flags(){
3266     for flag; do
3267         case $flag in
3268             -march=*|-mcpu=*)
3269                 case "${flag#*=}" in
3270                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3271                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3272                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3273                     armv6*|arm11*)          echo -mv=6   ;;
3274                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3275                                             echo -mv=5e  ;;
3276                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3277                 esac
3278                 ;;
3279             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3280             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3281             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3282             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3283             -msoft-float)   echo --float_support=vfplib       ;;
3284             -O[0-3]|-mf=*)  echo $flag                        ;;
3285             -g)             echo -g -mn                       ;;
3286             -pds=*)         echo $flag                        ;;
3287             -D*|-I*)        echo $flag                        ;;
3288             --gcc|--abi=*)  echo $flag                        ;;
3289             -me)            echo $flag                        ;;
3290         esac
3291     done
3292 }
3293
3294 probe_cc(){
3295     pfx=$1
3296     _cc=$2
3297
3298     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3299     unset _ld_o _ldflags _ld_lib _ld_path
3300     unset _depflags _DEPCMD _DEPFLAGS
3301     _flags_filter=echo
3302
3303     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3304         _type=llvm_gcc
3305         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3306         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3307         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3308         _cflags_speed='-O3'
3309         _cflags_size='-Os'
3310     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3311         _type=gcc
3312         gcc_version=$($_cc --version | head -n1)
3313         gcc_basever=$($_cc -dumpversion)
3314         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3315         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3316         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3317         if ! $_cc -dumpversion | grep -q '^2\.'; then
3318             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3319         fi
3320         _cflags_speed='-O3'
3321         _cflags_size='-Os'
3322     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3323         _type=icc
3324         _ident=$($_cc --version | head -n1)
3325         _depflags='-MMD'
3326         _cflags_speed='-O3'
3327         _cflags_size='-Os'
3328         _cflags_noopt='-O1'
3329     elif $_cc -v 2>&1 | grep -q xlc; then
3330         _type=xlc
3331         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3332         _cflags_speed='-O5'
3333         _cflags_size='-O5 -qcompact'
3334     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3335         _type=ccc
3336         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3337         _DEPFLAGS='-M'
3338         _cflags_speed='-fast'
3339         _cflags_size='-O1'
3340         _flags_filter=ccc_flags
3341     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3342         test -d "$sysroot" || die "No valid sysroot specified."
3343         _type=armcc
3344         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3345         armcc_conf="$PWD/armcc.conf"
3346         $_cc --arm_linux_configure                 \
3347              --arm_linux_config_file="$armcc_conf" \
3348              --configure_sysroot="$sysroot"        \
3349              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3350              die "Error creating armcc configuration file."
3351         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3352         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3353         as_default="${cross_prefix}gcc"
3354         _depflags='-MMD'
3355         _cflags_speed='-O3'
3356         _cflags_size='-Os'
3357     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3358         _type=tms470
3359         _ident=$($_cc -version | head -n1 | tr -s ' ')
3360         _flags='--gcc --abi=eabi -me'
3361         _cc_e='-ppl -fe=$@'
3362         _cc_o='-fe=$@'
3363         _depflags='-ppa -ppd=$(@:.o=.d)'
3364         _cflags_speed='-O3 -mf=5'
3365         _cflags_size='-O3 -mf=2'
3366         _flags_filter=tms470_flags
3367     elif $_cc -v 2>&1 | grep -q clang; then
3368         _type=clang
3369         _ident=$($_cc --version 2>/dev/null | head -n1)
3370         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3371         _cflags_speed='-O3'
3372         _cflags_size='-Os'
3373     elif $_cc -V 2>&1 | grep -q Sun; then
3374         _type=suncc
3375         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3376         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3377         _DEPFLAGS='-xM1 -xc99'
3378         _ldflags='-std=c99'
3379         _cflags_speed='-O5'
3380         _cflags_size='-O5 -xspace'
3381         _flags_filter=suncc_flags
3382     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3383         _type=pathscale
3384         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3385         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3386         _cflags_speed='-O2'
3387         _cflags_size='-Os'
3388         _flags_filter='filter_out -Wdisabled-optimization'
3389     elif $_cc -v 2>&1 | grep -q Open64; then
3390         _type=open64
3391         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3392         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3393         _cflags_speed='-O2'
3394         _cflags_size='-Os'
3395         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3396     elif $_cc -V 2>&1 | grep -q Portland; then
3397         _type=pgi
3398         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3399         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3400         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3401         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3402         _cflags_noopt="-O1"
3403         _flags_filter=pgi_flags
3404     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3405         _type=armasm
3406         _ident=$($_cc | head -n1)
3407         # 4509: "This form of conditional instruction is deprecated"
3408         _flags="-nologo -ignore 4509"
3409         _flags_filter=armasm_flags
3410     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3411         _type=msvc
3412         _ident=$($_cc 2>&1 | head -n1)
3413         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3414         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3415         _cflags_speed="-O2"
3416         _cflags_size="-O1"
3417         _cflags_noopt="-O1"
3418         if $_cc -nologo- 2>&1 | grep -q Linker; then
3419             _ld_o='-out:$@'
3420         else
3421             _ld_o='-Fe$@'
3422         fi
3423         _cc_o='-Fo$@'
3424         _cc_e='-P -Fi$@'
3425         _flags_filter=msvc_flags
3426         _ld_lib='lib%.a'
3427         _ld_path='-libpath:'
3428         _flags='-nologo'
3429     elif $_cc 2>&1 | grep -q Intel; then
3430         _type=icl
3431         _ident=$($_cc 2>&1 | head -n1)
3432         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3433         # Not only is O3 broken on 13.x+ but it is slower on all previous
3434         # versions (tested) as well.
3435         _cflags_speed="-O2"
3436         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3437         if $_cc 2>&1 | grep -q Linker; then
3438             _ld_o='-out:$@'
3439         else
3440             _ld_o='-Fe$@'
3441         fi
3442         _cc_o='-Fo$@'
3443         _cc_e='-P'
3444         _flags_filter=icl_flags
3445         _ld_lib='lib%.a'
3446         _ld_path='-libpath:'
3447         # -Qdiag-error to make icl error when seeing certain unknown arguments
3448         _flags='-nologo -Qdiag-error:4044,10157'
3449         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3450         # with MSVC which enables it by default.
3451         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3452     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3453         # lld can emulate multiple different linkers; in ms link.exe mode,
3454         # the -? parameter gives the help output which contains an identifyable
3455         # string, while it gives an error in other modes.
3456         _type=lld-link
3457         # The link.exe mode doesn't have a switch for getting the version,
3458         # but we can force it back to gnu mode and get the version from there.
3459         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3460         _ld_o='-out:$@'
3461         _flags_filter=msvc_flags
3462         _ld_lib='lib%.a'
3463         _ld_path='-libpath:'
3464     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3465         _type=cparser
3466         _ident=$($_cc --version | head -n1)
3467         _depflags='-MMD'
3468         _cflags_speed='-O4'
3469         _cflags_size='-O2'
3470         _flags_filter=cparser_flags
3471     fi
3472
3473     eval ${pfx}_type=\$_type
3474     eval ${pfx}_ident=\$_ident
3475 }
3476
3477 set_ccvars(){
3478     eval ${1}_C=\${_cc_c-\${${1}_C}}
3479     eval ${1}_E=\${_cc_e-\${${1}_E}}
3480     eval ${1}_O=\${_cc_o-\${${1}_O}}
3481
3482     if [ -n "$_depflags" ]; then
3483         eval ${1}_DEPFLAGS=\$_depflags
3484     else
3485         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3486         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3487         eval DEP${1}FLAGS=\$_flags
3488     fi
3489 }
3490
3491 probe_cc cc "$cc"
3492 cflags_filter=$_flags_filter
3493 cflags_speed=$_cflags_speed
3494 cflags_size=$_cflags_size
3495 cflags_noopt=$_cflags_noopt
3496 add_cflags $_flags $_cflags
3497 cc_ldflags=$_ldflags
3498 set_ccvars CC
3499
3500 probe_cc hostcc "$host_cc"
3501 host_cflags_filter=$_flags_filter
3502 host_cflags_speed=$_cflags_speed
3503 add_host_cflags  $_flags $_cflags
3504 set_ccvars HOSTCC
3505
3506 test -n "$cc_type" && enable $cc_type ||
3507     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3508
3509 : ${as_default:=$cc}
3510 : ${objcc_default:=$cc}
3511 : ${dep_cc_default:=$cc}
3512 : ${ld_default:=$cc}
3513 : ${host_ld_default:=$host_cc}
3514 set_default ar as objcc dep_cc ld host_ld
3515
3516 probe_cc as "$as"
3517 asflags_filter=$_flags_filter
3518 add_asflags $_flags $_cflags
3519 set_ccvars AS
3520
3521 probe_cc objcc "$objcc"
3522 objcflags_filter=$_flags_filter
3523 add_objcflags $_flags $_cflags
3524 set_ccvars OBJC
3525
3526 probe_cc ld "$ld"
3527 ldflags_filter=$_flags_filter
3528 add_ldflags $_flags $_ldflags
3529 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3530 LD_O=${_ld_o-$LD_O}
3531 LD_LIB=${_ld_lib-$LD_LIB}
3532 LD_PATH=${_ld_path-$LD_PATH}
3533
3534 probe_cc hostld "$host_ld"
3535 host_ldflags_filter=$_flags_filter
3536 add_host_ldflags $_flags $_ldflags
3537 HOSTLD_O=${_ld_o-$HOSTLD_O}
3538
3539 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3540     probe_cc depcc "$dep_cc"
3541     CCDEP=${_DEPCMD:-$DEPCMD}
3542     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3543     DEPCCFLAGS=$_flags
3544 fi
3545
3546 if $ar 2>&1 | grep -q Microsoft; then
3547     arflags="-nologo"
3548     ar_o='-out:$@'
3549 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3550     arflags="rq"
3551     ar_o='$@'
3552 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3553     arflags='-Xany -r -c'
3554     ar_o='$@'
3555 else
3556     arflags="rc"
3557     ar_o='$@'
3558 fi
3559
3560 add_cflags $extra_cflags
3561 add_objcflags $extra_objcflags
3562 add_asflags $extra_cflags
3563
3564 if test -n "$sysroot"; then
3565     case "$cc_type" in
3566         gcc|llvm_gcc|clang)
3567             add_cppflags --sysroot="$sysroot"
3568             add_ldflags --sysroot="$sysroot"
3569         ;;
3570         tms470)
3571             add_cppflags -I"$sysinclude"
3572             add_ldflags  --sysroot="$sysroot"
3573         ;;
3574     esac
3575 fi
3576
3577 if test "$cpu" = host; then
3578     enabled cross_compile &&
3579         die "--cpu=host makes no sense when cross-compiling."
3580
3581     case "$cc_type" in
3582         gcc|llvm_gcc)
3583             check_native(){
3584                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3585                 sed -n "/cc1.*$1=/{
3586                             s/.*$1=\\([^ ]*\\).*/\\1/
3587                             p
3588                             q
3589                         }" $TMPE
3590             }
3591             cpu=$(check_native -march || check_native -mcpu)
3592         ;;
3593     esac
3594
3595     test "${cpu:-host}" = host &&
3596         die "--cpu=host not supported with compiler $cc"
3597 fi
3598
3599 # Deal with common $arch aliases
3600 case "$arch" in
3601     aarch64|arm64)
3602         arch="aarch64"
3603     ;;
3604     arm*)
3605         arch="arm"
3606     ;;
3607     mips*|IP*)
3608         case "$arch" in
3609         *el)
3610             add_cppflags -EL
3611             add_ldflags -EL
3612         ;;
3613         *eb)
3614             add_cppflags -EB
3615             add_ldflags -EB
3616         ;;
3617         esac
3618         arch="mips"
3619     ;;
3620     parisc*|hppa*)
3621         arch="parisc"
3622     ;;
3623     "Power Macintosh"|ppc*|powerpc*)
3624         arch="ppc"
3625     ;;
3626     s390|s390x)
3627         arch="s390"
3628     ;;
3629     sh4|sh)
3630         arch="sh4"
3631     ;;
3632     sun4u|sparc*)
3633         arch="sparc"
3634     ;;
3635     tilegx|tile-gx)
3636         arch="tilegx"
3637     ;;
3638     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3639         arch="x86"
3640     ;;
3641 esac
3642
3643 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3644 enable $arch
3645
3646 # Add processor-specific flags
3647 if enabled aarch64; then
3648
3649     case $cpu in
3650         armv*)
3651             cpuflags="-march=$cpu"
3652         ;;
3653         *)
3654             cpuflags="-mcpu=$cpu"
3655         ;;
3656     esac
3657
3658 elif enabled alpha; then
3659
3660     cpuflags="-mcpu=$cpu"
3661
3662 elif enabled arm; then
3663
3664     check_arm_arch() {
3665         check_cpp_condition stddef.h \
3666             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3667             $cpuflags
3668     }
3669
3670     probe_arm_arch() {
3671         if   check_arm_arch 4;        then echo armv4
3672         elif check_arm_arch 4T;       then echo armv4t
3673         elif check_arm_arch 5;        then echo armv5
3674         elif check_arm_arch 5E;       then echo armv5e
3675         elif check_arm_arch 5T;       then echo armv5t
3676         elif check_arm_arch 5TE;      then echo armv5te
3677         elif check_arm_arch 5TEJ;     then echo armv5te
3678         elif check_arm_arch 6;        then echo armv6
3679         elif check_arm_arch 6J;       then echo armv6j
3680         elif check_arm_arch 6K;       then echo armv6k
3681         elif check_arm_arch 6Z;       then echo armv6z
3682         elif check_arm_arch 6ZK;      then echo armv6zk
3683         elif check_arm_arch 6T2;      then echo armv6t2
3684         elif check_arm_arch 7;        then echo armv7
3685         elif check_arm_arch 7A  7_A;  then echo armv7-a
3686         elif check_arm_arch 7S;       then echo armv7-a
3687         elif check_arm_arch 7R  7_R;  then echo armv7-r
3688         elif check_arm_arch 7M  7_M;  then echo armv7-m
3689         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3690         elif check_arm_arch 8A  8_A;  then echo armv8-a
3691         fi
3692     }
3693
3694     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3695
3696     case $cpu in
3697         armv*)
3698             cpuflags="-march=$cpu"
3699             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3700         ;;
3701         *)
3702             cpuflags="-mcpu=$cpu"
3703             case $cpu in
3704                 cortex-a*)                               subarch=armv7a  ;;
3705                 cortex-r*)                               subarch=armv7r  ;;
3706                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3707                 arm11*)                                  subarch=armv6   ;;
3708                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3709                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3710                 *)                             subarch=$(probe_arm_arch) ;;
3711             esac
3712         ;;
3713     esac
3714
3715     case "$subarch" in
3716         armv5t*)    enable fast_clz                ;;
3717         armv[6-8]*) enable fast_clz fast_unaligned ;;
3718     esac
3719
3720 elif enabled avr32; then
3721
3722     case $cpu in
3723         ap7[02]0[0-2])
3724             subarch="avr32_ap"
3725             cpuflags="-mpart=$cpu"
3726         ;;
3727         ap)
3728             subarch="avr32_ap"
3729             cpuflags="-march=$cpu"
3730         ;;
3731         uc3[ab]*)
3732             subarch="avr32_uc"
3733             cpuflags="-mcpu=$cpu"
3734         ;;
3735         uc)
3736             subarch="avr32_uc"
3737             cpuflags="-march=$cpu"
3738         ;;
3739     esac
3740
3741 elif enabled bfin; then
3742
3743     cpuflags="-mcpu=$cpu"
3744
3745 elif enabled mips; then
3746
3747     cpuflags="-march=$cpu"
3748
3749 elif enabled ppc; then
3750
3751     disable ldbrx
3752
3753     case $(tolower $cpu) in
3754         601|ppc601|powerpc601)
3755             cpuflags="-mcpu=601"
3756             disable altivec
3757         ;;
3758         603*|ppc603*|powerpc603*)
3759             cpuflags="-mcpu=603"
3760             disable altivec
3761         ;;
3762         604*|ppc604*|powerpc604*)
3763             cpuflags="-mcpu=604"
3764             disable altivec
3765         ;;
3766         g3|75*|ppc75*|powerpc75*)
3767             cpuflags="-mcpu=750"
3768             disable altivec
3769         ;;
3770         g4|745*|ppc745*|powerpc745*)
3771             cpuflags="-mcpu=7450"
3772             disable vsx
3773         ;;
3774         74*|ppc74*|powerpc74*)
3775             cpuflags="-mcpu=7400"
3776             disable vsx
3777         ;;
3778         g5|970|ppc970|powerpc970)
3779             cpuflags="-mcpu=970"
3780             disable vsx
3781         ;;
3782         power[3-6]*)
3783             cpuflags="-mcpu=$cpu"
3784             disable vsx
3785         ;;
3786         power[7-8]*)
3787             cpuflags="-mcpu=$cpu"
3788             enable ldbrx
3789         ;;
3790         cell)
3791             cpuflags="-mcpu=cell"
3792             enable ldbrx
3793             disable vsx
3794         ;;
3795         e500mc)
3796             cpuflags="-mcpu=e500mc"
3797             disable altivec
3798         ;;
3799         e500v2)
3800             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3801             disable altivec
3802             disable dcbzl
3803         ;;
3804         e500)
3805             cpuflags="-mcpu=8540 -mhard-float"
3806             disable altivec
3807             disable dcbzl
3808         ;;
3809     esac
3810
3811 elif enabled sparc; then
3812
3813     case $cpu in
3814         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3815             cpuflags="-mcpu=$cpu"
3816         ;;
3817         ultrasparc*|niagara[234])
3818             cpuflags="-mcpu=$cpu"
3819         ;;
3820     esac
3821
3822 elif enabled x86; then
3823
3824     case $cpu in
3825         i[345]86|pentium)
3826             cpuflags="-march=$cpu"
3827             disable i686
3828             disable mmx
3829         ;;
3830         # targets that do NOT support nopl and conditional mov (cmov)
3831         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3832             cpuflags="-march=$cpu"
3833             disable i686
3834         ;;
3835         # targets that do support nopl and conditional mov (cmov)
3836         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3837             cpuflags="-march=$cpu"
3838             enable i686
3839             enable fast_cmov
3840         ;;
3841         # targets that do support conditional mov but on which it's slow
3842         pentium4|pentium4m|prescott|nocona)
3843             cpuflags="-march=$cpu"
3844             enable i686
3845             disable fast_cmov
3846         ;;
3847     esac
3848
3849 fi
3850
3851 if [ "$cpu" != generic ]; then
3852     add_cflags  $cpuflags
3853     add_asflags $cpuflags
3854     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3855 fi
3856
3857 # compiler sanity check
3858 check_exec <<EOF
3859 int main(void){ return 0; }
3860 EOF
3861 if test "$?" != 0; then
3862     echo "$cc is unable to create an executable file."
3863     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3864         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3865         echo "Only do this if you know what cross compiling means."
3866     fi
3867     die "C compiler test failed."
3868 fi
3869
3870 add_cppflags -D_ISOC99_SOURCE
3871
3872 # some compilers silently accept -std=c11, so we also need to check that the
3873 # version macro is defined properly
3874 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3875     add_cflags -std=c11 ||
3876     check_cflags -std=c99
3877
3878 check_cppflags -D_FILE_OFFSET_BITS=64
3879 check_cppflags -D_LARGEFILE_SOURCE
3880
3881 add_host_cppflags -D_ISOC99_SOURCE
3882 check_host_cflags -std=c99
3883 check_host_cflags -Wall
3884 check_host_cflags $host_cflags_speed
3885
3886 check_64bit(){
3887     arch32=$1
3888     arch64=$2
3889     expr=$3
3890     check_code cc "" "int test[2*($expr) - 1]" &&
3891         subarch=$arch64 || subarch=$arch32
3892 }
3893
3894 case "$arch" in
3895     aarch64|alpha|ia64)
3896         spic=$shared
3897     ;;
3898     mips)
3899         check_64bit mips mips64 '_MIPS_SIM > 1'
3900         spic=$shared
3901     ;;
3902     parisc)
3903         check_64bit parisc parisc64 'sizeof(void *) > 4'
3904         spic=$shared
3905     ;;
3906     ppc)
3907         check_64bit ppc ppc64 'sizeof(void *) > 4'
3908         spic=$shared
3909     ;;
3910     s390)
3911         check_64bit s390 s390x 'sizeof(void *) > 4'
3912         spic=$shared
3913     ;;
3914     sparc)
3915         check_64bit sparc sparc64 'sizeof(void *) > 4'
3916         spic=$shared
3917     ;;
3918     x86)
3919         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3920         if test "$subarch" = "x86_64"; then
3921             spic=$shared
3922         fi
3923     ;;
3924 esac
3925
3926 enable $subarch
3927 enabled spic && enable_weak pic
3928
3929 enabled x86_64 && objformat=elf64 || objformat="elf32"
3930
3931 # OS specific
3932 case $target_os in
3933     aix)
3934         SHFLAGS=-shared
3935         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3936         enabled shared && add_ldflags -Wl,-brtl
3937         ;;
3938     android)
3939         disable symver
3940         enable section_data_rel_ro
3941         SLIB_INSTALL_NAME='$(SLIBNAME)'
3942         SLIB_INSTALL_LINKS=
3943         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3944         ;;
3945     haiku)
3946         prefix_default="/boot/common"
3947         network_extralibs="-lnetwork"
3948         host_extralibs=
3949         ;;
3950     sunos)
3951         SHFLAGS='-shared -Wl,-h,$$(@F)'
3952         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3953         network_extralibs="-lsocket -lnsl"
3954         # When using suncc to build, the Solaris linker will mark
3955         # an executable with each instruction set encountered by
3956         # the Solaris assembler.  As our libraries contain their own
3957         # guards for processor-specific code, instead suppress
3958         # generation of the HWCAPS ELF section on Solaris x86 only.
3959         enabled_all suncc x86 &&
3960             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3961             add_ldflags -Wl,-M,mapfile
3962         nm_default='nm -P -g'
3963         version_script='-M'
3964         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3965         ;;
3966     netbsd)
3967         disable symver
3968         oss_indev_extralibs="-lossaudio"
3969         oss_outdev_extralibs="-lossaudio"
3970         ;;
3971     openbsd|bitrig)
3972         disable symver
3973         SHFLAGS='-shared'
3974         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3975         SLIB_INSTALL_LINKS=
3976         oss_indev_extralibs="-lossaudio"
3977         oss_outdev_extralibs="-lossaudio"
3978         ;;
3979     dragonfly)
3980         disable symver
3981         ;;
3982     freebsd)
3983         ;;
3984     bsd/os)
3985         add_extralibs -lpoll -lgnugetopt
3986         ;;
3987     darwin)
3988         enabled ppc && add_asflags -force_cpusubtype_ALL
3989         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3990         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3991         add_ldflags -Wl,-dynamic,-search_paths_first
3992         check_cflags -Werror=partial-availability
3993         SLIBSUF=".dylib"
3994         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3995         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3996         enabled x86_64 && objformat="macho64" || objformat="macho32"
3997         enabled_any pic shared ||
3998             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3999         check_header dispatch/dispatch.h &&
4000             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
4001         if test -n "$sysroot"; then
4002             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
4003             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
4004         fi
4005         ;;
4006     msys*)
4007         die "Native MSYS builds are discouraged, please use the MINGW environment."
4008         ;;
4009     mingw32*|mingw64*)
4010         if test $target_os = "mingw32ce"; then
4011             disable network
4012         else
4013             target_os=mingw32
4014         fi
4015         LIBTARGET=i386
4016         if enabled x86_64; then
4017             LIBTARGET="i386:x86-64"
4018         elif enabled arm; then
4019             LIBTARGET=arm-wince
4020         fi
4021         check_ldflags -Wl,--nxcompat
4022         check_ldflags -Wl,--dynamicbase
4023         shlibdir_default="$bindir_default"
4024         SLIBPREF=""
4025         SLIBSUF=".dll"
4026         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4027         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4028         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4029         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4030         SLIB_INSTALL_LINKS=
4031         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4032         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4033         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4034         enabled x86_64 && objformat="win64" || objformat="win32"
4035         dlltool="${cross_prefix}dlltool"
4036         ranlib=:
4037         enable dos_paths
4038         ;;
4039     win32|win64)
4040         disable symver
4041         if enabled shared; then
4042             # Link to the import library instead of the normal static library
4043             # for shared libs.
4044             LD_LIB='%.lib'
4045             # Cannot build both shared and static libs with MSVC or icl.
4046             disable static
4047         fi
4048         shlibdir_default="$bindir_default"
4049         SLIBPREF=""
4050         SLIBSUF=".dll"
4051         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4052         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4053         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4054         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4055         SLIB_INSTALL_LINKS=
4056         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4057         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4058         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4059         enabled x86_64 && objformat="win64" || objformat="win32"
4060         ranlib=:
4061         enable dos_paths
4062         ;;
4063     cygwin*)
4064         target_os=cygwin
4065         shlibdir_default="$bindir_default"
4066         SLIBPREF="cyg"
4067         SLIBSUF=".dll"
4068         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4069         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4070         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4071         SLIB_INSTALL_LINKS=
4072         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4073         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4074         enabled x86_64 && objformat="win64" || objformat="win32"
4075         enable dos_paths
4076         ;;
4077     *-dos|freedos|opendos)
4078         network_extralibs="-lsocket"
4079         objformat="coff"
4080         enable dos_paths
4081         add_cppflags -U__STRICT_ANSI__
4082         ;;
4083     linux)
4084         enable dv1394
4085         enable section_data_rel_ro
4086         ;;
4087     irix*)
4088         target_os=irix
4089         ranlib="echo ignoring ranlib"
4090         ;;
4091     os/2*)
4092         ln_s="cp -f"
4093         objformat="aout"
4094         add_cppflags -D_GNU_SOURCE
4095         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4096         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4097         LIBSUF="_s.a"
4098         SLIBPREF=""
4099         SLIBSUF=".dll"
4100         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4101         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4102         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4103             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4104             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4105             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4106             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4107         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4108             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4109         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4110         enable dos_paths
4111         ;;
4112     gnu/kfreebsd)
4113         add_cppflags -D_BSD_SOURCE
4114         ;;
4115     gnu)
4116         ;;
4117     qnx)
4118         add_cppflags -D_QNX_SOURCE
4119         network_extralibs="-lsocket"
4120         ;;
4121     symbian)
4122         SLIBSUF=".dll"
4123         enable dos_paths
4124         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4125         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4126         add_ldflags -Wl,--target1-abs,--no-undefined \
4127                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4128                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4129         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4130                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4131                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4132         ;;
4133     osf1)
4134         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4135         ;;
4136     minix)
4137         ;;
4138     none)
4139         ;;
4140     *)
4141         die "Unknown OS '$target_os'."
4142         ;;
4143 esac
4144
4145 # determine libc flavour
4146
4147 probe_libc(){
4148     pfx=$1
4149     pfx_no_=${pfx%_}
4150     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4151     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4152         eval ${pfx}libc_type=uclibc
4153         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4154     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4155         eval ${pfx}libc_type=glibc
4156         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4157     # MinGW headers can be installed on Cygwin, so check for newlib first.
4158     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4159         eval ${pfx}libc_type=newlib
4160         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4161     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4162     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4163         eval ${pfx}libc_type=mingw64
4164         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4165         eval test \$${pfx_no_}cc_type = "gcc" &&
4166             add_${pfx}cppflags -D__printf__=__gnu_printf__
4167     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4168          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4169         eval ${pfx}libc_type=mingw32
4170         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4171             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4172             die "ERROR: MinGW32 runtime version must be >= 3.15."
4173         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4174         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4175             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4176         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4177             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4178         eval test \$${pfx_no_}cc_type = "gcc" &&
4179             add_${pfx}cppflags -D__printf__=__gnu_printf__
4180     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4181         eval ${pfx}libc_type=msvcrt
4182         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4183             if [ "$pfx" = host_ ]; then
4184                 add_host_cppflags -Dsnprintf=_snprintf
4185             else
4186                 add_compat strtod.o strtod=avpriv_strtod
4187                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4188                                              _snprintf=avpriv_snprintf  \
4189                                              vsnprintf=avpriv_vsnprintf
4190             fi
4191         fi
4192         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4193         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4194         # 0x601 by default unless something else is set by the user.
4195         # This can easily lead to us detecting functions only present
4196         # in such new versions and producing binaries requiring windows 7.0.
4197         # Therefore explicitly set the default to XP unless the user has
4198         # set something else on the command line.
4199         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4200         # family. For these cases, configure is free to use any functions
4201         # found in the SDK headers by default. (Alternatively, we could force
4202         # _WIN32_WINNT to 0x0602 in that case.)
4203         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4204             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4205 #ifdef WINAPI_FAMILY
4206 #include <winapifamily.h>
4207 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4208 #error not desktop
4209 #endif
4210 #endif
4211 EOF
4212         if [ "$pfx" = "" ]; then
4213             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4214         fi
4215     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4216         eval ${pfx}libc_type=klibc
4217     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4218         eval ${pfx}libc_type=bionic
4219     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4220         eval ${pfx}libc_type=solaris
4221         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4222     else
4223         eval ${pfx}libc_type=default
4224         add_${pfx}cppflags -D_DEFAULT_SOURCE
4225     fi
4226 }
4227
4228 probe_libc
4229 test -n "$libc_type" && enable libc_$libc_type
4230 probe_libc host_
4231 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4232
4233 # hacks for compiler/libc/os combinations
4234
4235 case $libc_type in
4236     bionic)
4237         add_compat strtod.o strtod=avpriv_strtod
4238         ;;
4239     glibc)
4240         if enabled tms470; then
4241             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4242             add_cppflags -D__USER_LABEL_PREFIX__=
4243             add_cppflags -D__builtin_memset=memset
4244             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4245             add_cflags   -pds=48    # incompatible redefinition of macro
4246         elif enabled ccc; then
4247             add_ldflags -Wl,-z,now  # calls to libots crash without this
4248         fi
4249         ;;
4250 esac
4251
4252 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4253     add_cppflags '-I\$(SRC_PATH)/compat/float'
4254
4255 esc(){
4256     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4257 }
4258
4259 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4260
4261 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4262
4263 set_default $PATHS_LIST
4264 set_default nm
4265
4266 # we need to build at least one lib type
4267 if ! enabled_any static shared; then
4268     cat <<EOF
4269 At least one library type must be built.
4270 Specify --enable-static to build the static libraries or --enable-shared to
4271 build the shared libraries as well. To only build the shared libraries specify
4272 --disable-static in addition to --enable-shared.
4273 EOF
4274     exit 1
4275 fi
4276
4277 disabled optimizations || check_cflags -fomit-frame-pointer
4278
4279 enable_weak_pic() {
4280     disabled pic && return
4281     enable pic
4282     add_cppflags -DPIC
4283     case "$target_os" in
4284     mingw*|cygwin*)
4285         ;;
4286     *)
4287         add_cflags -fPIC
4288         ;;
4289     esac
4290     add_asflags  -fPIC
4291 }
4292
4293 enabled pic && enable_weak_pic
4294
4295 check_cc <<EOF || die "Symbol mangling check failed."
4296 int ff_extern;
4297 EOF
4298 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4299 extern_prefix=${sym%%ff_extern*}
4300
4301 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4302
4303 _restrict=
4304 for restrict_keyword in restrict __restrict__ __restrict; do
4305     check_cc <<EOF && _restrict=$restrict_keyword && break
4306 void foo(char * $restrict_keyword p);
4307 EOF
4308 done
4309
4310 check_cc <<EOF && enable pragma_deprecated
4311 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4312 EOF
4313
4314 check_cc <<EOF && enable attribute_packed
4315 struct { int x; } __attribute__((packed)) x;
4316 EOF
4317
4318 check_cc <<EOF && enable attribute_may_alias
4319 union { int x; } __attribute__((may_alias)) x;
4320 EOF
4321
4322 check_cc <<EOF || die "endian test failed"
4323 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4324 EOF
4325 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4326
4327 check_gas() {
4328     log "check_gas using '$as' as AS"
4329     # :vararg is used on aarch64, arm and ppc altivec
4330     check_as <<EOF || return 1
4331 .macro m n, y:vararg=0
4332 \n: .int \y
4333 .endm
4334 m x
4335 EOF
4336     # .altmacro is only used in arm asm
4337     ! enabled arm || check_as <<EOF || return 1
4338 .altmacro
4339 EOF
4340     enable gnu_as
4341     return 0
4342 }
4343
4344 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4345     nogas=:
4346     enabled_any arm aarch64 && nogas=die
4347     enabled_all ppc altivec && nogas=warn
4348     as_noop=-v
4349
4350     case $as_type in
4351         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4352         gcc)  gaspp_as_type=gas ;;
4353         *)    gaspp_as_type=$as_type ;;
4354     esac
4355
4356     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4357
4358     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4359         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4360
4361     if ! check_gas ; then
4362         as=${gas:=$as}
4363         check_gas || \
4364             $nogas "GNU assembler not found, install/update gas-preprocessor"
4365     fi
4366
4367     check_as <<EOF && enable as_func
4368 .func test
4369 .endfunc
4370 EOF
4371 fi
4372
4373 check_inline_asm inline_asm_labels '"1:\n"'
4374
4375 if enabled aarch64; then
4376     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4377     # internal assembler in clang 3.3 does not support this instruction
4378     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4379     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4380
4381     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4382
4383 elif enabled alpha; then
4384
4385     check_cflags -mieee
4386
4387 elif enabled arm; then
4388
4389     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4390     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4391     enabled thumb && check_cflags -mthumb || check_cflags -marm
4392
4393     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4394         enable vfp_args
4395     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4396         enable vfp_args
4397     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4398         case "${cross_prefix:-$cc}" in
4399             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4400             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4401 __asm__ (".eabi_attribute 28, 1");
4402 int main(void) { return 0; }
4403 EOF
4404         esac
4405         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4406     fi
4407
4408     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4409     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4410     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4411     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4412     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4413     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4414
4415     [ $target_os = linux ] || [ $target_os = android ] ||
4416         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4417             $ARCH_EXT_LIST_ARM
4418
4419     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4420
4421     check_as <<EOF && enable as_arch_directive
4422 .arch armv7-a
4423 EOF
4424     check_as <<EOF && enable as_fpu_directive
4425 .fpu neon
4426 EOF
4427
4428     # llvm's integrated assembler supports .object_arch from llvm 3.5
4429     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4430         check_as <<EOF && enable as_object_arch
4431 .object_arch armv4
4432 EOF
4433
4434     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4435
4436 elif enabled mips; then
4437
4438     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4439
4440     # make sure that only an instruction set is enabled
4441     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4442
4443     if enabled mips64; then
4444         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4445             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4446                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4447     else
4448         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4449             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4450                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4451     fi
4452
4453 elif enabled parisc; then
4454
4455     if enabled gcc; then
4456         case $($cc -dumpversion) in
4457             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4458         esac
4459     fi
4460
4461 elif enabled ppc; then
4462
4463     enable local_aligned_8 local_aligned_16 local_aligned_32
4464
4465     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4466     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4467     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4468     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4469
4470     if enabled altivec; then
4471         check_cflags -maltivec -mabi=altivec
4472
4473         # check if our compiler supports Motorola AltiVec C API
4474         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4475                                  vector signed int v2 = (vector signed int) { 1 };
4476                                  v1 = vec_add(v1, v2);" ||
4477             disable altivec
4478
4479         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4480     fi
4481
4482     if enabled vsx; then
4483         check_cflags -mvsx &&
4484         check_code cc altivec.h "int v[4] = { 0 };
4485                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4486             disable vsx
4487     fi
4488
4489     if enabled power8; then
4490         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4491     fi
4492
4493 elif enabled x86; then
4494
4495     check_builtin rdtsc    intrin.h   "__rdtsc()"
4496     check_builtin mm_empty mmintrin.h "_mm_empty()"
4497
4498     enable local_aligned_8 local_aligned_16 local_aligned_32
4499
4500     # check whether EBP is available on x86
4501     # As 'i' is stored on the stack, this program will crash
4502     # if the base pointer is used to access it because the
4503     # base pointer is cleared in the inline assembly code.
4504     check_exec_crash <<EOF && enable ebp_available
4505 volatile int i=0;
4506 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4507 return i;
4508 EOF
4509
4510     # check whether EBX is available on x86
4511     check_inline_asm ebx_available '""::"b"(0)' &&
4512         check_inline_asm ebx_available '"":::"%ebx"'
4513
4514     # check whether xmm clobbers are supported
4515     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4516
4517     # check whether binutils is new enough to compile SSSE3/MMXEXT
4518     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4519     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4520
4521     probe_x86asm(){
4522         x86asmexe_probe=$1
4523         if check_cmd $x86asmexe_probe -v; then
4524             x86asmexe=$x86asmexe_probe
4525             x86asm_type=nasm
4526             x86asm_debug="-g -F dwarf"
4527             X86ASMDEP=
4528             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4529         elif check_cmd $x86asmexe_probe --version; then
4530             x86asmexe=$x86asmexe_probe
4531             x86asm_type=yasm
4532             x86asm_debug="-g dwarf2"
4533             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4534             X86ASM_DEPFLAGS=
4535         fi
4536         check_x86asm "movbe ecx, [5]" && enable x86asm
4537     }
4538
4539     if ! disabled_any asm mmx x86asm; then
4540         disable x86asm
4541         for program in $x86asmexe nasm yasm; do
4542             probe_x86asm $program && break
4543         done
4544         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4545         X86ASMFLAGS="-f $objformat"
4546         enabled pic               && append X86ASMFLAGS "-DPIC"
4547         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4548         case "$objformat" in
4549             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4550         esac
4551
4552         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4553         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4554         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4555         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4556         check_x86asm "CPU amdnop"                      || disable cpunop
4557     fi
4558
4559     case "$cpu" in
4560         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4561             disable fast_clz
4562         ;;
4563     esac
4564
4565 fi
4566
4567 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4568
4569 check_ldflags -Wl,--as-needed
4570
4571 if ! disabled network; then
4572     check_func getaddrinfo $network_extralibs
4573     check_func inet_aton $network_extralibs
4574
4575     check_type netdb.h "struct addrinfo"
4576     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4577     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4578     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4579     check_type poll.h "struct pollfd"
4580     check_type netinet/sctp.h "struct sctp_event_subscribe"
4581     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4582     check_type netinet/in.h "struct sockaddr_in6"
4583     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4584     check_type "sys/types.h sys/socket.h" socklen_t
4585
4586     # Prefer arpa/inet.h over winsock2
4587     if check_header arpa/inet.h ; then
4588         check_func closesocket
4589     elif check_header winsock2.h ; then
4590         check_func_headers winsock2.h closesocket -lws2 &&
4591             network_extralibs="-lws2" ||
4592         { check_func_headers winsock2.h closesocket -lws2_32 &&
4593             network_extralibs="-lws2_32"; } || disable winsock2_h network
4594         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4595
4596         check_type ws2tcpip.h socklen_t
4597         check_type ws2tcpip.h "struct addrinfo"
4598         check_type ws2tcpip.h "struct group_source_req"
4599         check_type ws2tcpip.h "struct ip_mreq_source"
4600         check_type ws2tcpip.h "struct ipv6_mreq"
4601         check_type winsock2.h "struct pollfd"
4602         check_struct winsock2.h "struct sockaddr" sa_len
4603         check_type ws2tcpip.h "struct sockaddr_in6"
4604         check_type ws2tcpip.h "struct sockaddr_storage"
4605     else
4606         disable network
4607     fi
4608 fi
4609
4610 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4611 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4612 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4613 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4614
4615 case "$custom_allocator" in
4616     jemalloc)
4617         # jemalloc by default does not use a prefix
4618         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4619     ;;
4620     tcmalloc)
4621         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4622         malloc_prefix=tc_
4623     ;;
4624 esac
4625
4626 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4627 check_func  ${malloc_prefix}memalign            && enable memalign
4628 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4629
4630 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4631     { check_lib clock_gettime time.h clock_gettime ||
4632       check_lib clock_gettime time.h clock_gettime -lrt; }
4633
4634 check_func  fcntl
4635 check_func  fork
4636 check_func  gethrtime
4637 check_func  getopt
4638 check_func  getrusage
4639 check_func  gettimeofday
4640 check_func  gmtime_r
4641 check_func  isatty
4642 check_func  localtime_r
4643 check_func  mach_absolute_time
4644 check_func  mkstemp
4645 check_func  mmap
4646 check_func  mprotect
4647 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4648 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4649 check_func  sched_getaffinity
4650 check_func  setrlimit
4651 check_func  strerror_r
4652 check_func  sysconf
4653 check_func  sysctl
4654 check_func  usleep
4655
4656 check_func_headers io.h setmode
4657 check_func_headers stdlib.h getenv
4658
4659 check_func_headers windows.h GetProcessAffinityMask
4660 check_func_headers windows.h GetProcessTimes
4661 check_func_headers windows.h GetSystemTimeAsFileTime
4662 check_func_headers windows.h LoadLibrary
4663 check_func_headers windows.h MapViewOfFile
4664 check_func_headers windows.h SetConsoleTextAttribute
4665 check_func_headers windows.h Sleep
4666 check_func_headers windows.h VirtualAlloc
4667 check_struct windows.h "CONDITION_VARIABLE" Ptr
4668
4669 check_header d3d11.h
4670 check_header direct.h
4671 check_header dlfcn.h
4672 check_header dxgidebug.h
4673 check_header dxva.h
4674 check_header dxva2api.h
4675 check_header io.h
4676 check_header mach/mach_time.h
4677 check_header malloc.h
4678 check_header poll.h
4679 check_header sys/mman.h
4680 check_header sys/param.h
4681 check_header sys/resource.h
4682 check_header sys/select.h
4683 check_header sys/time.h
4684 check_header sys/un.h
4685 check_header unistd.h
4686 check_header valgrind/valgrind.h
4687 check_header VideoDecodeAcceleration/VDADecoder.h
4688 check_header windows.h
4689
4690 # it seems there are versions of clang in some distros that try to use the
4691 # gcc headers, which explodes for stdatomic
4692 # so we also check that atomics actually work here
4693 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4694
4695 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4696 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4697 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4698 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4699
4700 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4701
4702 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4703 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4704
4705 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4706 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4707 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4708
4709 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4710 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4711 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4712 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4713 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4714 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4715 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4716 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4717 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4718
4719 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4720
4721 if ! disabled w32threads && ! enabled pthreads; then
4722     check_lib w32threads "windows.h process.h" _beginthreadex
4723 fi
4724
4725 # check for some common methods of building with pthread support
4726 # do this before the optional library checks as some of them require pthreads
4727 if ! disabled pthreads && ! enabled w32threads; then
4728     if check_lib pthreads pthread.h pthread_join -pthread; then
4729         add_cflags -pthread
4730     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4731         add_cflags -pthreads
4732     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4733         :
4734     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4735         :
4736     elif check_func pthread_join; then
4737         enable pthreads
4738     fi
4739 fi
4740
4741 enabled pthreads &&
4742     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4743
4744 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4745 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4746
4747 # On some systems dynamic loading requires no extra linker flags
4748 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4749
4750 check_lib libm math.h sin -lm
4751
4752 atan2f_args=2
4753 ldexpf_args=2
4754 powf_args=2
4755
4756 for func in $MATH_FUNCS; do
4757     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4758 done
4759
4760 # these are off by default, so fail if requested and not available
4761 enabled avisynth          && require_header avisynth/avisynth_c.h
4762 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4763 enabled cuda              && require cuda cuda.h cuInit -lcuda
4764 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4765 enabled frei0r            && require_header frei0r.h
4766 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4767 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4768 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4769 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4770 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4771 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4772 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4773 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4774 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4775                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4776                                done || die "ERROR: libgsm not found"; }
4777 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4778 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4779 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4780 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4781 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4782 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4783 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4784 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4785 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4786 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4787 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4788                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4789 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4790 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4791 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4792 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4793 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4794 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4795 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4796 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4797 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4798 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4799 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4800 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4801                              { enabled libvpx_vp8_decoder &&
4802                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4803                                enabled libvpx_vp8_encoder &&
4804                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4805                                enabled libvpx_vp9_decoder &&
4806                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4807                                enabled libvpx_vp9_encoder &&
4808                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4809                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4810                                    die "libvpx enabled but no supported decoders/encoders found"
4811                              }
4812 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4813 enabled libwebp           && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4814 enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4815                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
4816                              { check_cpp_condition x264.h "X264_MPEG2" &&
4817                                enable libx262; }
4818 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
4819                              require_cpp_condition x265.h "X265_BUILD >= 57"
4820 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4821 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4822 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4823                                { ! enabled cross_compile &&
4824                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4825                                  add_ldflags -L/opt/vc/lib/ &&
4826                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4827                                die "ERROR: mmal not found" &&
4828                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4829 enabled omx               && require_header OMX_Core.h
4830 enabled omx_rpi           && { check_header OMX_Core.h ||
4831                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4832                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
4833 enabled openssl           && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4834