build: Remove check for gsm/gsm.h for libgsm
[ffmpeg.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 ${name}_extralibs="\$@"
1026 }
1027
1028 test_pkg_config(){
1029     log test_pkg_config "$@"
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 $name &&
1042         set_sanitized "${name}_cflags"    $pkg_cflags &&
1043         set_sanitized "${name}_extralibs" $pkg_libs
1044 }
1045
1046 check_pkg_config(){
1047     log check_pkg_config "$@"
1048     name="$1"
1049     test_pkg_config "$@" &&
1050         eval add_cflags \$${name}_cflags
1051 }
1052
1053 check_exec(){
1054     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1055 }
1056
1057 check_exec_crash(){
1058     log check_exec_crash "$@"
1059     code=$(cat)
1060
1061     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1062     # are safe but may not be available everywhere.  Thus we use
1063     # raise(SIGTERM) instead.  The check is run in a subshell so we
1064     # can redirect the "Terminated" message from the shell.  SIGBUS
1065     # is not defined by standard C so it is used conditionally.
1066
1067     (check_exec "$@") >> $logfile 2>&1 <<EOF
1068 #include <signal.h>
1069 static void sighandler(int sig){
1070     raise(SIGTERM);
1071 }
1072 int foo(void){
1073     $code
1074 }
1075 int (*func_ptr)(void) = foo;
1076 int main(void){
1077     signal(SIGILL, sighandler);
1078     signal(SIGFPE, sighandler);
1079     signal(SIGSEGV, sighandler);
1080 #ifdef SIGBUS
1081     signal(SIGBUS, sighandler);
1082 #endif
1083     return func_ptr();
1084 }
1085 EOF
1086 }
1087
1088 check_type(){
1089     log check_type "$@"
1090     headers=$1
1091     type=$2
1092     shift 2
1093     disable_sanitized "$type"
1094     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1095 }
1096
1097 check_struct(){
1098     log check_struct "$@"
1099     headers=$1
1100     struct=$2
1101     member=$3
1102     shift 3
1103     disable_sanitized "${struct}_${member}"
1104     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1105         enable_sanitized "${struct}_${member}"
1106 }
1107
1108 check_builtin(){
1109     log check_builtin "$@"
1110     name=$1
1111     headers=$2
1112     builtin=$3
1113     shift 3
1114     disable "$name"
1115     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1116 }
1117
1118 check_compile_assert(){
1119     log check_compile_assert "$@"
1120     name=$1
1121     headers=$2
1122     condition=$3
1123     shift 3
1124     disable "$name"
1125     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1126 }
1127
1128 require(){
1129     log require "$@"
1130     name_version="$1"
1131     name="${1%% *}"
1132     headers="$2"
1133     func="$3"
1134     shift 3
1135     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1136 }
1137
1138 require_header(){
1139     log require "$@"
1140     header="$1"
1141     shift
1142     check_header "$header" "$@" || die "ERROR: $header not found"
1143 }
1144
1145 require_cpp_condition(){
1146     log require "$@"
1147     header="$1"
1148     condition="$2"
1149     shift 2
1150     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1151 }
1152
1153 require_pkg_config(){
1154     log require_pkg_config "$@"
1155     pkg_version="$2"
1156     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1157 }
1158
1159 hostcc_e(){
1160     eval printf '%s\\n' $HOSTCC_E
1161 }
1162
1163 hostcc_o(){
1164     eval printf '%s\\n' $HOSTCC_O
1165 }
1166
1167 check_host_cc(){
1168     log check_host_cc "$@"
1169     cat > $TMPC
1170     log_file $TMPC
1171     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1172 }
1173
1174 check_host_cpp(){
1175     log check_host_cpp "$@"
1176     cat > $TMPC
1177     log_file $TMPC
1178     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1179 }
1180
1181 check_host_cppflags(){
1182     log check_host_cppflags "$@"
1183     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1184 #include <stdlib.h>;
1185 EOF
1186 }
1187
1188 check_host_cflags(){
1189     log check_host_cflags "$@"
1190     set -- $($host_cflags_filter "$@")
1191     check_host_cc "$@" <<EOF && append host_cflags "$@"
1192 int x;
1193 EOF
1194 }
1195
1196 check_host_cpp_condition(){
1197     log check_host_cpp_condition "$@"
1198     header=$1
1199     condition=$2
1200     shift 2
1201     check_host_cpp "$@" <<EOF
1202 #include <$header>
1203 #if !($condition)
1204 #error "unsatisfied condition: $condition"
1205 #endif
1206 EOF
1207 }
1208
1209 apply(){
1210     file=$1
1211     shift
1212     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1213 }
1214
1215 cp_if_changed(){
1216     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1217     mkdir -p "$(dirname $2)"
1218     cp -f "$1" "$2"
1219 }
1220
1221 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1222 # system-dependent things.
1223
1224 AVCODEC_COMPONENTS="
1225     bsfs
1226     decoders
1227     encoders
1228     hwaccels
1229     parsers
1230 "
1231
1232 AVDEVICE_COMPONENTS="
1233     indevs
1234     outdevs
1235 "
1236 AVFILTER_COMPONENTS="
1237     filters
1238 "
1239 AVFORMAT_COMPONENTS="
1240     demuxers
1241     muxers
1242     protocols
1243 "
1244
1245 AVRESAMPLE_COMPONENTS=""
1246 AVUTIL_COMPONENTS=""
1247
1248 COMPONENT_LIST="
1249     $AVCODEC_COMPONENTS
1250     $AVDEVICE_COMPONENTS
1251     $AVFILTER_COMPONENTS
1252     $AVFORMAT_COMPONENTS
1253     $AVRESAMPLE_COMPONENTS
1254     $AVUTIL_COMPONENTS
1255 "
1256
1257 EXAMPLE_LIST="
1258     decode_audio_example
1259     decode_video_example
1260     encode_audio_example
1261     encode_video_example
1262     filter_audio_example
1263     metadata_example
1264     output_example
1265     qsvdec_example
1266     transcode_aac_example
1267 "
1268
1269 # catchall list of things that require external libs to link
1270 EXTRALIBS_LIST="
1271     cpu_init
1272     cws2fws
1273 "
1274
1275 HWACCEL_LIBRARY_NONFREE_LIST="
1276     cuda
1277     cuvid
1278     libnpp
1279 "
1280 HWACCEL_LIBRARY_LIST="
1281     $HWACCEL_LIBRARY_NONFREE_LIST
1282     d3d11va
1283     dxva2
1284     libmfx
1285     mmal
1286     nvenc
1287     omx
1288     vaapi
1289     vda
1290     vdpau
1291 "
1292
1293 EXTERNAL_LIBRARY_GPL_LIST="
1294     libcdio
1295     libx264
1296     libx265
1297     libxavs
1298     libxvid
1299 "
1300
1301 EXTERNAL_LIBRARY_NONFREE_LIST="
1302     libfaac
1303     libfdk_aac
1304     openssl
1305 "
1306
1307 EXTERNAL_LIBRARY_VERSION3_LIST="
1308     libopencore_amrnb
1309     libopencore_amrwb
1310     libvo_aacenc
1311     libvo_amrwbenc
1312 "
1313
1314 EXTERNAL_LIBRARY_LIST="
1315     $EXTERNAL_LIBRARY_GPL_LIST
1316     $EXTERNAL_LIBRARY_NONFREE_LIST
1317     $EXTERNAL_LIBRARY_VERSION3_LIST
1318     avisynth
1319     avxsynth
1320     frei0r
1321     gnutls
1322     libbs2b
1323     libdc1394
1324     libdcadec
1325     libfontconfig
1326     libfreetype
1327     libgsm
1328     libhdcd
1329     libilbc
1330     libjack
1331     libkvazaar
1332     libmp3lame
1333     libopencv
1334     libopenh264
1335     libopenjpeg
1336     libopus
1337     libpulse
1338     librtmp
1339     libschroedinger
1340     libsnappy
1341     libspeex
1342     libtheora
1343     libtwolame
1344     libvorbis
1345     libvpx
1346     libwavpack
1347     libwebp
1348     libxcb
1349     libxcb_shm
1350     libxcb_xfixes
1351 "
1352
1353 SYSTEM_LIBRARY_LIST="
1354     bzlib
1355     zlib
1356 "
1357
1358 FEATURE_LIST="
1359     gray
1360     hardcoded_tables
1361     omx_rpi
1362     runtime_cpudetect
1363     safe_bitstream_reader
1364     shared
1365     small
1366     sram
1367     static
1368     swscale_alpha
1369 "
1370
1371 LIBRARY_LIST="
1372     avcodec
1373     avdevice
1374     avfilter
1375     avformat
1376     avresample
1377     avutil
1378     swscale
1379 "
1380
1381 LICENSE_LIST="
1382     gpl
1383     nonfree
1384     version3
1385 "
1386
1387 PROGRAM_LIST="
1388     avconv
1389     avplay
1390     avprobe
1391 "
1392
1393 SUBSYSTEM_LIST="
1394     dct
1395     doc
1396     error_resilience
1397     faan
1398     fft
1399     lsp
1400     lzo
1401     mdct
1402     network
1403     rdft
1404 "
1405
1406 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1407 CONFIG_LIST="
1408     $EXAMPLE_LIST
1409     $EXTERNAL_LIBRARY_LIST
1410     $HWACCEL_LIBRARY_LIST
1411     $FEATURE_LIST
1412     $LICENSE_LIST
1413     $LIBRARY_LIST
1414     $PROGRAM_LIST
1415     $SUBSYSTEM_LIST
1416     $SYSTEM_LIBRARY_LIST
1417     neon_clobber_test
1418     pic
1419     pod2man
1420     texi2html
1421     thumb
1422     valgrind_backtrace
1423     xmm_clobber_test
1424     $COMPONENT_LIST
1425 "
1426
1427 THREADS_LIST="
1428     pthreads
1429     w32threads
1430 "
1431
1432 ATOMICS_LIST="
1433     atomics_gcc
1434     atomics_suncc
1435     atomics_win32
1436 "
1437
1438 ARCH_LIST="
1439     aarch64
1440     alpha
1441     arm
1442     avr32
1443     avr32_ap
1444     avr32_uc
1445     bfin
1446     ia64
1447     m68k
1448     mips
1449     mips64
1450     parisc
1451     ppc
1452     ppc64
1453     s390
1454     sh4
1455     sparc
1456     sparc64
1457     tilegx
1458     tilepro
1459     tomi
1460     x86
1461     x86_32
1462     x86_64
1463 "
1464
1465 ARCH_EXT_LIST_ARM="
1466     armv5te
1467     armv6
1468     armv6t2
1469     armv8
1470     neon
1471     vfp
1472     vfpv3
1473 "
1474
1475 ARCH_EXT_LIST_X86_SIMD="
1476     amd3dnow
1477     amd3dnowext
1478     avx
1479     avx2
1480     fma3
1481     fma4
1482     mmx
1483     mmxext
1484     sse
1485     sse2
1486     sse3
1487     sse4
1488     sse42
1489     ssse3
1490     xop
1491 "
1492
1493 ARCH_EXT_LIST_PPC="
1494     altivec
1495     dcbzl
1496     ldbrx
1497     power8
1498     ppc4xx
1499     vsx
1500 "
1501
1502 ARCH_EXT_LIST_X86="
1503     $ARCH_EXT_LIST_X86_SIMD
1504     cpunop
1505     i686
1506 "
1507
1508 ARCH_EXT_LIST_MIPS="
1509     loongson
1510     mips32r1
1511     mips64r1
1512     mips32r2
1513     mips64r2
1514     mips32r6
1515     mips64r6
1516 "
1517
1518 ARCH_EXT_LIST="
1519     $ARCH_EXT_LIST_ARM
1520     $ARCH_EXT_LIST_MIPS
1521     $ARCH_EXT_LIST_PPC
1522     $ARCH_EXT_LIST_X86
1523     vis
1524 "
1525
1526 ARCH_FEATURES="
1527     aligned_stack
1528     fast_64bit
1529     fast_clz
1530     fast_cmov
1531     local_aligned_8
1532     local_aligned_16
1533     local_aligned_32
1534     simd_align_16
1535     simd_align_32
1536 "
1537
1538 BUILTIN_LIST="
1539     atomic_cas_ptr
1540     machine_rw_barrier
1541     MemoryBarrier
1542     mm_empty
1543     rdtsc
1544     sem_timedwait
1545     sync_val_compare_and_swap
1546 "
1547 HAVE_LIST_CMDLINE="
1548     inline_asm
1549     symver
1550     x86asm
1551 "
1552
1553 HAVE_LIST_PUB="
1554     bigendian
1555     fast_unaligned
1556 "
1557
1558 HEADERS_LIST="
1559     AVFoundation_AVFoundation_h
1560     arpa_inet_h
1561     cdio_paranoia_h
1562     cdio_paranoia_paranoia_h
1563     dispatch_dispatch_h
1564     dev_bktr_ioctl_bt848_h
1565     dev_bktr_ioctl_meteor_h
1566     dev_ic_bt8xx_h
1567     dev_video_bktr_ioctl_bt848_h
1568     dev_video_meteor_ioctl_meteor_h
1569     direct_h
1570     dxgidebug_h
1571     dxva_h
1572     io_h
1573     mach_mach_time_h
1574     machine_ioctl_bt848_h
1575     machine_ioctl_meteor_h
1576     malloc_h
1577     poll_h
1578     soundcard_h
1579     stdatomic_h
1580     sys_param_h
1581     sys_resource_h
1582     sys_select_h
1583     sys_soundcard_h
1584     sys_time_h
1585     sys_un_h
1586     sys_videoio_h
1587     unistd_h
1588     valgrind_valgrind_h
1589     windows_h
1590     winsock2_h
1591 "
1592
1593 INTRINSICS_LIST="
1594     intrinsics_neon
1595 "
1596
1597 MATH_FUNCS="
1598     atanf
1599     atan2f
1600     cbrtf
1601     cosf
1602     exp2
1603     exp2f
1604     expf
1605     isinf
1606     isnan
1607     ldexpf
1608     llrint
1609     llrintf
1610     log2
1611     log2f
1612     log10f
1613     lrint
1614     lrintf
1615     powf
1616     rint
1617     round
1618     roundf
1619     sinf
1620     trunc
1621     truncf
1622 "
1623
1624 SYSTEM_FUNCS="
1625     aligned_malloc
1626     clock_gettime
1627     closesocket
1628     CommandLineToArgvW
1629     CryptGenRandom
1630     fcntl
1631     fork
1632     getaddrinfo
1633     gethrtime
1634     getopt
1635     GetProcessAffinityMask
1636     GetProcessMemoryInfo
1637     GetProcessTimes
1638     getrusage
1639     GetSystemTimeAsFileTime
1640     gettimeofday
1641     gmtime_r
1642     inet_aton
1643     isatty
1644     localtime_r
1645     mach_absolute_time
1646     MapViewOfFile
1647     memalign
1648     mmap
1649     mprotect
1650     nanosleep
1651     posix_memalign
1652     sched_getaffinity
1653     SetConsoleTextAttribute
1654     setmode
1655     setrlimit
1656     Sleep
1657     strerror_r
1658     sysconf
1659     sysctl
1660     usleep
1661     VirtualAlloc
1662 "
1663
1664 TOOLCHAIN_FEATURES="
1665     as_arch_directive
1666     as_fpu_directive
1667     as_func
1668     as_object_arch
1669     asm_mod_q
1670     attribute_may_alias
1671     attribute_packed
1672     blocks_extension
1673     ebp_available
1674     ebx_available
1675     gnu_as
1676     ibm_asm
1677     inline_asm_labels
1678     pragma_deprecated
1679     symver_asm_label
1680     symver_gnu_asm
1681     vfp_args
1682     xform_asm
1683     xmm_clobbers
1684 "
1685
1686 TYPES_LIST="
1687     CONDITION_VARIABLE_Ptr
1688     CUVIDDECODECREATEINFO_bitDepthMinus8
1689     socklen_t
1690     struct_addrinfo
1691     struct_group_source_req
1692     struct_ip_mreq_source
1693     struct_ipv6_mreq
1694     struct_pollfd
1695     struct_rusage_ru_maxrss
1696     struct_sockaddr_in6
1697     struct_sockaddr_sa_len
1698     struct_sockaddr_storage
1699     struct_v4l2_frmivalenum_discrete
1700 "
1701
1702 HAVE_LIST="
1703     $ARCH_EXT_LIST
1704     $(add_suffix _external $ARCH_EXT_LIST)
1705     $(add_suffix _inline   $ARCH_EXT_LIST)
1706     $ARCH_FEATURES
1707     $BUILTIN_LIST
1708     $HAVE_LIST_CMDLINE
1709     $HAVE_LIST_PUB
1710     $HEADERS_LIST
1711     $INTRINSICS_LIST
1712     $MATH_FUNCS
1713     $SYSTEM_FUNCS
1714     $THREADS_LIST
1715     $TOOLCHAIN_FEATURES
1716     $TYPES_LIST
1717     dos_paths
1718     libc_msvcrt
1719     MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
1720     sdl
1721     section_data_rel_ro
1722     threads
1723     uwp
1724     vaapi_drm
1725     vaapi_x11
1726     vdpau_x11
1727 "
1728
1729 # options emitted with CONFIG_ prefix but not available on the command line
1730 CONFIG_EXTRA="
1731     aandcttables
1732     ac3dsp
1733     adts_header
1734     audio_frame_queue
1735     audiodsp
1736     blockdsp
1737     bswapdsp
1738     cabac
1739     cbs
1740     cbs_h264
1741     cbs_h265
1742     cbs_mpeg2
1743     dirac_parse
1744     dvprofile
1745     faandct
1746     faanidct
1747     fdctdsp
1748     flacdsp
1749     fmtconvert
1750     g722dsp
1751     gmp
1752     golomb
1753     gplv3
1754     h263dsp
1755     h264chroma
1756     h264dsp
1757     h264parse
1758     h264pred
1759     h264qpel
1760     hevcparse
1761     hpeldsp
1762     huffman
1763     huffyuvdsp
1764     huffyuvencdsp
1765     idctdsp
1766     iirfilter
1767     imdct15
1768     intrax8
1769     iso_media
1770     ividsp
1771     jpegtables
1772     lgplv3
1773     libx262
1774     libxcb_shape
1775     lpc
1776     lzf
1777     me_cmp
1778     mpeg_er
1779     mpegaudio
1780     mpegaudiodsp
1781     mpegaudioheader
1782     mpegvideo
1783     mpegvideoenc
1784     mss34dsp
1785     pixblockdsp
1786     qpeldsp
1787     qsv
1788     qsvdec
1789     qsvenc
1790     qsvvpp
1791     rangecoder
1792     riffdec
1793     riffenc
1794     rtpdec
1795     rtpenc_chain
1796     rv34dsp
1797     sinewin
1798     snappy
1799     srtp
1800     startcode
1801     texturedsp
1802     texturedspenc
1803     tpeldsp
1804     vaapi_encode
1805     vc1dsp
1806     videodsp
1807     vp3dsp
1808     vp56dsp
1809     vp8dsp
1810     wma_freqs
1811     wmv2dsp
1812 "
1813
1814 CMDLINE_SELECT="
1815     $ARCH_EXT_LIST
1816     $CONFIG_LIST
1817     $HAVE_LIST_CMDLINE
1818     $THREADS_LIST
1819     asm
1820     cross_compile
1821     debug
1822     extra_warnings
1823     logging
1824     lto
1825     optimizations
1826     rpath
1827 "
1828
1829 PATHS_LIST="
1830     bindir
1831     datadir
1832     docdir
1833     incdir
1834     libdir
1835     mandir
1836     prefix
1837     shlibdir
1838 "
1839
1840 CMDLINE_SET="
1841     $PATHS_LIST
1842     ar
1843     arch
1844     as
1845     cc
1846     objcc
1847     cpu
1848     cross_prefix
1849     custom_allocator
1850     dep_cc
1851     env
1852     extra_version
1853     host_cc
1854     host_cflags
1855     host_extralibs
1856     host_ld
1857     host_ldflags
1858     host_os
1859     ignore_tests
1860     ld
1861     logfile
1862     malloc_prefix
1863     nm
1864     optflags
1865     pkg_config
1866     pkg_config_flags
1867     random_seed
1868     samples
1869     sysinclude
1870     sysroot
1871     target_exec
1872     target_os
1873     target_path
1874     target_samples
1875     toolchain
1876     x86asmexe
1877 "
1878
1879 CMDLINE_APPEND="
1880     extra_cflags
1881     extra_objcflags
1882     host_cppflags
1883 "
1884
1885 # code dependency declarations
1886
1887 # architecture extensions
1888
1889 armv5te_deps="arm"
1890 armv6_deps="arm"
1891 armv6t2_deps="arm"
1892 armv8_deps="aarch64"
1893 neon_deps_any="aarch64 arm"
1894 intrinsics_neon_deps="neon"
1895 vfp_deps_any="aarch64 arm"
1896 vfpv3_deps="vfp"
1897
1898 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1899
1900 altivec_deps="ppc"
1901 dcbzl_deps="ppc"
1902 ldbrx_deps="ppc"
1903 ppc4xx_deps="ppc"
1904 vsx_deps="altivec"
1905 power8_deps="vsx"
1906
1907 loongson_deps="mips"
1908 mips32r1_deps="mips32"
1909 mips32r2_deps="mips32"
1910 mips32r6_deps="mips32"
1911 mips64r1_deps="mips64"
1912 mips64r2_deps="mips64"
1913 mips64r6_deps="mips64"
1914
1915 vis_deps="sparc"
1916
1917 cpunop_deps="i686"
1918 x86_64_select="i686"
1919 x86_64_suggest="fast_cmov"
1920
1921 amd3dnow_deps="mmx"
1922 amd3dnowext_deps="amd3dnow"
1923 i686_deps="x86"
1924 mmx_deps="x86"
1925 mmxext_deps="mmx"
1926 sse_deps="mmxext"
1927 sse2_deps="sse"
1928 sse3_deps="sse2"
1929 ssse3_deps="sse3"
1930 sse4_deps="ssse3"
1931 sse42_deps="sse4"
1932 avx_deps="sse42"
1933 xop_deps="avx"
1934 fma3_deps="avx"
1935 fma4_deps="avx"
1936 avx2_deps="avx"
1937
1938 mmx_external_deps="x86asm"
1939 mmx_inline_deps="inline_asm x86"
1940 mmx_suggest="mmx_external mmx_inline"
1941
1942 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1943     eval dep=\$${ext}_deps
1944     eval ${ext}_external_deps='"${dep}_external"'
1945     eval ${ext}_inline_deps='"${dep}_inline"'
1946     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1947 done
1948
1949 aligned_stack_if_any="aarch64 ppc x86"
1950 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1951 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1952 fast_unaligned_if_any="aarch64 ppc x86"
1953 simd_align_16_if_any="altivec neon sse"
1954 simd_align_32_if_any="avx"
1955
1956 # system capabilities
1957 symver_if_any="symver_asm_label symver_gnu_asm"
1958 valgrind_backtrace_conflict="optimizations"
1959 valgrind_backtrace_deps="valgrind_valgrind_h"
1960
1961 # threading support
1962 atomics_gcc_if="sync_val_compare_and_swap"
1963 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1964 atomics_win32_if="MemoryBarrier"
1965 atomics_native_if_any="$ATOMICS_LIST"
1966 w32threads_deps="atomics_native"
1967 threads_if_any="$THREADS_LIST"
1968
1969 # subsystems
1970 cbs_h264_select="cbs golomb"
1971 cbs_h265_select="cbs golomb"
1972 cbs_mpeg2_select="cbs"
1973 dct_select="rdft"
1974 dirac_parse_select="golomb"
1975 error_resilience_select="me_cmp"
1976 faandct_deps="faan"
1977 faandct_select="fdctdsp"
1978 faanidct_deps="faan"
1979 faanidct_select="idctdsp"
1980 h264dsp_select="startcode"
1981 hevcparse_select="golomb"
1982 intrax8_select="blockdsp idctdsp"
1983 mdct_select="fft"
1984 rdft_select="fft"
1985 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1986 mpeg_er_select="error_resilience"
1987 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1988 mpegaudiodsp_select="dct"
1989 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1990 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1991 vc1dsp_select="h264chroma qpeldsp startcode"
1992
1993 # decoders / encoders
1994 aac_decoder_select="adts_header imdct15 mdct sinewin"
1995 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1996 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1997 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1998 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1999 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
2000 adpcm_g722_decoder_select="g722dsp"
2001 adpcm_g722_encoder_select="g722dsp"
2002 aic_decoder_select="golomb idctdsp"
2003 alac_encoder_select="lpc"
2004 als_decoder_select="bswapdsp"
2005 amrnb_decoder_select="lsp"
2006 amrwb_decoder_select="lsp"
2007 amv_decoder_select="sp5x_decoder"
2008 ape_decoder_select="bswapdsp"
2009 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2010 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2011 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2012 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2013 atrac1_decoder_select="mdct sinewin"
2014 atrac3_decoder_select="mdct"
2015 atrac3p_decoder_select="mdct sinewin"
2016 bink_decoder_select="blockdsp hpeldsp"
2017 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2018 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2019 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2020 clearvideo_decoder_select="idctdsp"
2021 cllc_decoder_select="bswapdsp"
2022 comfortnoise_encoder_select="lpc"
2023 cook_decoder_select="audiodsp mdct sinewin"
2024 cscd_decoder_select="lzo"
2025 cscd_decoder_suggest="zlib"
2026 dca_decoder_select="fmtconvert mdct"
2027 dds_decoder_select="texturedsp"
2028 dnxhd_decoder_select="blockdsp idctdsp"
2029 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2030 dvvideo_decoder_select="dvprofile idctdsp"
2031 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2032 dxa_decoder_deps="zlib"
2033 dxv_decoder_select="lzf texturedsp"
2034 eac3_decoder_select="ac3_decoder"
2035 eac3_encoder_select="ac3_encoder"
2036 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2037 eatgq_decoder_select="aandcttables idctdsp"
2038 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2039 exr_decoder_deps="zlib"
2040 ffv1_decoder_select="rangecoder"
2041 ffv1_encoder_select="rangecoder"
2042 ffvhuff_decoder_select="huffyuv_decoder"
2043 ffvhuff_encoder_select="huffyuv_encoder"
2044 fic_decoder_select="golomb"
2045 flac_decoder_select="flacdsp"
2046 flac_encoder_select="bswapdsp flacdsp lpc"
2047 flashsv_decoder_deps="zlib"
2048 flashsv_encoder_deps="zlib"
2049 flashsv2_decoder_deps="zlib"
2050 flv_decoder_select="h263_decoder"
2051 flv_encoder_select="h263_encoder"
2052 fourxm_decoder_select="blockdsp bswapdsp"
2053 fraps_decoder_select="bswapdsp huffman"
2054 g2m_decoder_deps="zlib"
2055 g2m_decoder_select="blockdsp idctdsp jpegtables"
2056 h261_decoder_select="mpeg_er mpegvideo"
2057 h261_encoder_select="aandcttables mpegvideoenc"
2058 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2059 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2060 h263i_decoder_select="h263_decoder"
2061 h263p_encoder_select="h263_encoder"
2062 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2063 h264_decoder_suggest="error_resilience"
2064 hap_decoder_select="snappy texturedsp"
2065 hap_encoder_deps="libsnappy"
2066 hap_encoder_select="texturedspenc"
2067 hevc_decoder_select="bswapdsp cabac hevcparse videodsp"
2068 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2069 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2070 iac_decoder_select="imc_decoder"
2071 imc_decoder_select="bswapdsp fft mdct sinewin"
2072 indeo3_decoder_select="hpeldsp"
2073 indeo4_decoder_select="ividsp"
2074 indeo5_decoder_select="ividsp"
2075 interplay_video_decoder_select="hpeldsp"
2076 jpegls_decoder_select="mjpeg_decoder"
2077 jv_decoder_select="blockdsp"
2078 lagarith_decoder_select="huffyuvdsp"
2079 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2080 magicyuv_decoder_select="huffyuvdsp"
2081 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2082 metasound_decoder_select="lsp mdct sinewin"
2083 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2084 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2085 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2086 mjpegb_decoder_select="mjpeg_decoder"
2087 mlp_decoder_select="mlp_parser"
2088 motionpixels_decoder_select="bswapdsp"
2089 mp1_decoder_select="mpegaudio"
2090 mp1float_decoder_select="mpegaudio"
2091 mp2_decoder_select="mpegaudio"
2092 mp2float_decoder_select="mpegaudio"
2093 mp3_decoder_select="mpegaudio"
2094 mp3adu_decoder_select="mpegaudio"
2095 mp3adufloat_decoder_select="mpegaudio"
2096 mp3float_decoder_select="mpegaudio"
2097 mp3on4_decoder_select="mpegaudio"
2098 mp3on4float_decoder_select="mpegaudio"
2099 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2100 mpc8_decoder_select="mpegaudiodsp"
2101 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2102 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2103 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2104 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2105 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2106 mpeg4_encoder_select="h263_encoder"
2107 msa1_decoder_select="mss34dsp"
2108 msmpeg4v1_decoder_select="h263_decoder"
2109 msmpeg4v2_decoder_select="h263_decoder"
2110 msmpeg4v2_encoder_select="h263_encoder"
2111 msmpeg4v3_decoder_select="h263_decoder"
2112 msmpeg4v3_encoder_select="h263_encoder"
2113 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2114 mts2_decoder_select="mss34dsp"
2115 mxpeg_decoder_select="mjpeg_decoder"
2116 nellymoser_decoder_select="mdct sinewin"
2117 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2118 nuv_decoder_select="idctdsp lzo"
2119 on2avc_decoder_select="mdct"
2120 opus_decoder_deps="avresample"
2121 opus_decoder_select="imdct15"
2122 png_decoder_deps="zlib"
2123 png_encoder_deps="zlib"
2124 png_encoder_select="huffyuvencdsp"
2125 prores_decoder_select="idctdsp"
2126 prores_encoder_select="fdctdsp"
2127 qcelp_decoder_select="lsp"
2128 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2129 ra_144_encoder_select="audio_frame_queue lpc"
2130 ralf_decoder_select="golomb"
2131 rscc_decoder_deps="zlib"
2132 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2133 rv10_encoder_select="h263_encoder"
2134 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2135 rv20_encoder_select="h263_encoder"
2136 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2137 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2138 screenpresso_decoder_deps="zlib"
2139 sipr_decoder_select="lsp"
2140 sp5x_decoder_select="mjpeg_decoder"
2141 svq1_decoder_select="hpeldsp"
2142 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2143 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2144 svq3_decoder_suggest="zlib"
2145 tak_decoder_select="audiodsp"
2146 tdsc_decoder_deps="zlib"
2147 tdsc_decoder_select="mjpeg_decoder"
2148 theora_decoder_select="vp3_decoder"
2149 thp_decoder_select="mjpeg_decoder"
2150 tiff_decoder_suggest="zlib"
2151 tiff_encoder_suggest="zlib"
2152 truehd_decoder_select="mlp_decoder"
2153 truemotion2_decoder_select="bswapdsp"
2154 truespeech_decoder_select="bswapdsp"
2155 tscc_decoder_deps="zlib"
2156 txd_decoder_select="texturedsp"
2157 twinvq_decoder_select="mdct lsp sinewin"
2158 utvideo_decoder_select="bswapdsp huffyuvdsp"
2159 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2160 vble_decoder_select="huffyuvdsp"
2161 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2162 vc1image_decoder_select="vc1_decoder"
2163 vorbis_decoder_select="mdct"
2164 vorbis_encoder_select="mdct"
2165 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2166 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2167 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2168 vp6a_decoder_select="vp6_decoder"
2169 vp6f_decoder_select="vp6_decoder"
2170 vp7_decoder_select="h264pred videodsp vp8dsp"
2171 vp8_decoder_select="h264pred videodsp vp8dsp"
2172 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2173 webp_decoder_select="vp8_decoder"
2174 wmapro_decoder_select="mdct sinewin wma_freqs"
2175 wmav1_decoder_select="mdct sinewin wma_freqs"
2176 wmav1_encoder_select="mdct sinewin wma_freqs"
2177 wmav2_decoder_select="mdct sinewin wma_freqs"
2178 wmav2_encoder_select="mdct sinewin wma_freqs"
2179 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2180 wmv1_decoder_select="h263_decoder"
2181 wmv1_encoder_select="h263_encoder"
2182 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2183 wmv2_encoder_select="h263_encoder wmv2dsp"
2184 wmv3_decoder_select="vc1_decoder"
2185 wmv3image_decoder_select="wmv3_decoder"
2186 zerocodec_decoder_deps="zlib"
2187 zlib_decoder_deps="zlib"
2188 zlib_encoder_deps="zlib"
2189 zmbv_decoder_deps="zlib"
2190 zmbv_encoder_deps="zlib"
2191
2192 # hardware accelerators
2193 d3d11va_deps="dxva_h ID3D11VideoDecoder"
2194 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2195 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2196 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2197
2198 h263_vaapi_hwaccel_deps="vaapi"
2199 h263_vaapi_hwaccel_select="h263_decoder"
2200 h264_cuvid_hwaccel_deps="cuvid CUVIDH264PICPARAMS"
2201 h264_cuvid_hwaccel_select="h264_decoder"
2202 h264_d3d11va_hwaccel_deps="d3d11va"
2203 h264_d3d11va_hwaccel_select="h264_decoder"
2204 h264_d3d11va2_hwaccel_deps="d3d11va"
2205 h264_d3d11va2_hwaccel_select="h264_decoder"
2206 h264_dxva2_hwaccel_deps="dxva2"
2207 h264_dxva2_hwaccel_select="h264_decoder"
2208 h264_mmal_hwaccel_deps="mmal"
2209 h264_qsv_hwaccel_deps="libmfx"
2210 h264_vaapi_hwaccel_deps="vaapi"
2211 h264_vaapi_hwaccel_select="h264_decoder"
2212 h264_vda_hwaccel_deps="vda"
2213 h264_vda_hwaccel_select="h264_decoder"
2214 h264_vda_old_hwaccel_deps="vda"
2215 h264_vda_old_hwaccel_select="h264_decoder"
2216 h264_vdpau_hwaccel_deps="vdpau"
2217 h264_vdpau_hwaccel_select="h264_decoder"
2218 hevc_cuvid_hwaccel_deps="cuvid CUVIDHEVCPICPARAMS"
2219 hevc_cuvid_hwaccel_select="hevc_decoder"
2220 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2221 hevc_d3d11va_hwaccel_select="hevc_decoder"
2222 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2223 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2224 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2225 hevc_dxva2_hwaccel_select="hevc_decoder"
2226 hevc_qsv_hwaccel_deps="libmfx"
2227 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2228 hevc_vaapi_hwaccel_select="hevc_decoder"
2229 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2230 hevc_vdpau_hwaccel_select="hevc_decoder"
2231 mpeg1_vdpau_hwaccel_deps="vdpau"
2232 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2233 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2234 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2235 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2236 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2237 mpeg2_dxva2_hwaccel_deps="dxva2"
2238 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2239 mpeg2_mmal_hwaccel_deps="mmal"
2240 mpeg2_qsv_hwaccel_deps="libmfx"
2241 mpeg2_vaapi_hwaccel_deps="vaapi"
2242 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2243 mpeg2_vdpau_hwaccel_deps="vdpau"
2244 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2245 mpeg4_vaapi_hwaccel_deps="vaapi"
2246 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2247 mpeg4_vdpau_hwaccel_deps="vdpau"
2248 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2249 vc1_d3d11va_hwaccel_deps="d3d11va"
2250 vc1_d3d11va_hwaccel_select="vc1_decoder"
2251 vc1_d3d11va2_hwaccel_deps="d3d11va"
2252 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2253 vc1_dxva2_hwaccel_deps="dxva2"
2254 vc1_dxva2_hwaccel_select="vc1_decoder"
2255 vc1_mmal_hwaccel_deps="mmal"
2256 vc1_qsv_hwaccel_deps="libmfx"
2257 vc1_vaapi_hwaccel_deps="vaapi"
2258 vc1_vaapi_hwaccel_select="vc1_decoder"
2259 vc1_vdpau_hwaccel_deps="vdpau"
2260 vc1_vdpau_hwaccel_select="vc1_decoder"
2261 vp8_qsv_hwaccel_deps="libmfx"
2262 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2263 vp8_vaapi_hwaccel_select="vp8_decoder"
2264 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2265 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2266 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2267 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2268 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2269
2270 # hardware-accelerated codecs
2271 nvenc_deps_any="libdl LoadLibrary"
2272 omx_deps="libdl pthreads"
2273 omx_rpi_select="omx"
2274 qsv_deps="libmfx"
2275 qsvdec_select="qsv"
2276 qsvenc_select="qsv"
2277 qsvvpp_select="qsv"
2278 vaapi_encode_deps="vaapi"
2279
2280 hwupload_cuda_filter_deps="cuda"
2281 scale_npp_filter_deps="cuda libnpp"
2282
2283 h264_mmal_decoder_deps="mmal"
2284 h264_nvenc_encoder_deps="nvenc"
2285 h264_omx_encoder_deps="omx"
2286 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2287 h264_qsv_encoder_select="qsvenc"
2288 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2289 h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
2290 hevc_nvenc_encoder_deps="nvenc"
2291 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2292 hevc_qsv_encoder_select="hevcparse qsvenc"
2293 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2294 hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
2295 mjpeg_qsv_encoder_deps="libmfx"
2296 mjpeg_qsv_encoder_select="qsvenc"
2297 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2298 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2299 mpeg2_mmal_decoder_deps="mmal"
2300 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2301 mpeg2_qsv_encoder_select="qsvenc"
2302 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2303 mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
2304 mpeg4_omx_encoder_deps="omx"
2305 vc1_mmal_decoder_deps="mmal"
2306 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2307 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2308 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2309 vp8_vaapi_encoder_select="vaapi_encode"
2310 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2311 vp9_vaapi_encoder_select="vaapi_encode"
2312
2313 nvenc_h264_encoder_select="h264_nvenc_encoder"
2314 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2315
2316 # parsers
2317 aac_parser_select="adts_header"
2318 h264_parser_select="golomb h264dsp h264parse"
2319 hevc_parser_select="hevcparse"
2320 mpegaudio_parser_select="mpegaudioheader"
2321 mpegvideo_parser_select="mpegvideo"
2322 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2323 vc1_parser_select="vc1dsp"
2324
2325 # bitstream_filters
2326 aac_adtstoasc_bsf_select="adts_header"
2327 h264_metadata_bsf_select="cbs_h264"
2328 h264_redundant_pps_bsf_select="cbs_h264"
2329 hevc_metadata_bsf_select="cbs_h265"
2330 mjpeg2jpeg_bsf_select="jpegtables"
2331 mpeg2_metadata_bsf_select="cbs_mpeg2"
2332 trace_headers_bsf_select="cbs_h264 cbs_h265 cbs_mpeg2"
2333
2334 # external libraries
2335 avisynth_deps="LoadLibrary"
2336 avxsynth_deps="libdl"
2337 avisynth_demuxer_deps_any="avisynth avxsynth"
2338 avisynth_demuxer_select="riffdec"
2339 libdcadec_decoder_deps="libdcadec"
2340 libfaac_encoder_deps="libfaac"
2341 libfaac_encoder_select="audio_frame_queue"
2342 libfdk_aac_decoder_deps="libfdk_aac"
2343 libfdk_aac_encoder_deps="libfdk_aac"
2344 libfdk_aac_encoder_select="audio_frame_queue"
2345 libgsm_decoder_deps="libgsm"
2346 libgsm_encoder_deps="libgsm"
2347 libgsm_ms_decoder_deps="libgsm"
2348 libgsm_ms_encoder_deps="libgsm"
2349 libilbc_decoder_deps="libilbc"
2350 libilbc_encoder_deps="libilbc"
2351 libkvazaar_encoder_deps="libkvazaar"
2352 libmp3lame_encoder_deps="libmp3lame"
2353 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2354 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2355 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2356 libopencore_amrnb_encoder_select="audio_frame_queue"
2357 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2358 libopenh264_decoder_deps="libopenh264"
2359 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2360 libopenh264_encoder_deps="libopenh264"
2361 libopenjpeg_decoder_deps="libopenjpeg"
2362 libopenjpeg_encoder_deps="libopenjpeg"
2363 libopus_decoder_deps="libopus"
2364 libopus_encoder_deps="libopus"
2365 libopus_encoder_select="audio_frame_queue"
2366 libschroedinger_decoder_deps="libschroedinger"
2367 libschroedinger_encoder_deps="libschroedinger"
2368 libspeex_decoder_deps="libspeex"
2369 libspeex_encoder_deps="libspeex"
2370 libspeex_encoder_select="audio_frame_queue"
2371 libtheora_encoder_deps="libtheora"
2372 libtwolame_encoder_deps="libtwolame"
2373 libvo_aacenc_encoder_deps="libvo_aacenc"
2374 libvo_aacenc_encoder_select="audio_frame_queue"
2375 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2376 libvorbis_encoder_deps="libvorbis"
2377 libvorbis_encoder_select="audio_frame_queue"
2378 libvpx_vp8_decoder_deps="libvpx"
2379 libvpx_vp8_encoder_deps="libvpx"
2380 libvpx_vp9_decoder_deps="libvpx"
2381 libvpx_vp9_encoder_deps="libvpx"
2382 libwavpack_encoder_deps="libwavpack"
2383 libwavpack_encoder_select="audio_frame_queue"
2384 libwebp_encoder_deps="libwebp"
2385 libx262_encoder_deps="libx262"
2386 libx264_encoder_deps="libx264"
2387 libx265_encoder_deps="libx265"
2388 libxavs_encoder_deps="libxavs"
2389 libxvid_encoder_deps="libxvid mkstemp"
2390
2391 # demuxers / muxers
2392 ac3_demuxer_select="ac3_parser"
2393 asf_demuxer_select="riffdec"
2394 asf_muxer_select="riffenc"
2395 asf_stream_muxer_select="asf_muxer"
2396 avi_demuxer_select="iso_media riffdec"
2397 avi_muxer_select="riffenc"
2398 caf_demuxer_select="iso_media riffdec"
2399 dash_muxer_select="mp4_muxer"
2400 dirac_demuxer_select="dirac_parser"
2401 dv_demuxer_select="dvprofile"
2402 dv_muxer_select="dvprofile"
2403 dxa_demuxer_select="riffdec"
2404 eac3_demuxer_select="ac3_parser"
2405 f4v_muxer_select="mov_muxer"
2406 flac_demuxer_select="flac_parser"
2407 hds_muxer_select="flv_muxer"
2408 hls_muxer_select="mpegts_muxer"
2409 ipod_muxer_select="mov_muxer"
2410 ismv_muxer_select="mov_muxer"
2411 matroska_audio_muxer_select="matroska_muxer"
2412 matroska_demuxer_select="iso_media riffdec"
2413 matroska_demuxer_suggest="bzlib lzo zlib"
2414 matroska_muxer_select="iso_media riffenc"
2415 mmf_muxer_select="riffenc"
2416 mov_demuxer_select="iso_media riffdec"
2417 mov_demuxer_suggest="zlib"
2418 mov_muxer_select="iso_media riffenc rtpenc_chain"
2419 mp3_demuxer_select="mpegaudio_parser"
2420 mp3_muxer_select="mpegaudioheader"
2421 mp4_muxer_select="mov_muxer"
2422 mpegts_demuxer_select="iso_media"
2423 mpegts_muxer_select="adts_muxer latm_muxer"
2424 mpegtsraw_demuxer_select="mpegts_demuxer"
2425 mxf_d10_muxer_select="mxf_muxer"
2426 nut_muxer_select="riffenc"
2427 nuv_demuxer_select="riffdec"
2428 oga_muxer_select="ogg_muxer"
2429 ogg_demuxer_select="dirac_parse"
2430 opus_muxer_select="ogg_muxer"
2431 psp_muxer_select="mov_muxer"
2432 rtp_demuxer_select="sdp_demuxer"
2433 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2434 rtsp_demuxer_select="http_protocol rtpdec"
2435 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2436 sap_demuxer_select="sdp_demuxer"
2437 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2438 sdp_demuxer_select="rtpdec"
2439 smoothstreaming_muxer_select="ismv_muxer"
2440 spdif_demuxer_select="adts_header"
2441 spdif_muxer_select="adts_header"
2442 spx_muxer_select="ogg_muxer"
2443 swf_demuxer_suggest="zlib"
2444 tak_demuxer_select="tak_parser"
2445 tg2_muxer_select="mov_muxer"
2446 tgp_muxer_select="mov_muxer"
2447 w64_demuxer_select="wav_demuxer"
2448 wav_demuxer_select="riffdec"
2449 wav_muxer_select="riffenc"
2450 webm_muxer_select="iso_media riffenc"
2451 wtv_demuxer_select="mpegts_demuxer riffdec"
2452 xmv_demuxer_select="riffdec"
2453 xwma_demuxer_select="riffdec"
2454
2455 # indevs / outdevs
2456 alsa_indev_deps="alsa"
2457 alsa_outdev_deps="alsa"
2458 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2459 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2460 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2461 dv1394_indev_deps="dv1394"
2462 dv1394_indev_select="dv_demuxer"
2463 fbdev_indev_deps="linux_fb_h"
2464 jack_indev_deps="libjack"
2465 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2466 libcdio_indev_deps="libcdio"
2467 libdc1394_indev_deps="libdc1394"
2468 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2469 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2470 pulse_indev_deps="libpulse"
2471 sndio_indev_deps="sndio"
2472 sndio_outdev_deps="sndio"
2473 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2474 vfwcap_indev_deps="vfw32 vfwcap_defines"
2475 xcbgrab_indev_deps="libxcb libxcb_shape"
2476 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2477
2478 # protocols
2479 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2480 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2481 ffrtmpcrypt_protocol_select="tcp_protocol"
2482 ffrtmphttp_protocol_conflict="librtmp_protocol"
2483 ffrtmphttp_protocol_select="http_protocol"
2484 gopher_protocol_select="network"
2485 http_protocol_select="tcp_protocol"
2486 http_protocol_suggest="zlib"
2487 httpproxy_protocol_select="tcp_protocol"
2488 httpproxy_protocol_suggest="zlib"
2489 https_protocol_select="tls_protocol"
2490 https_protocol_suggest="zlib"
2491 icecast_protocol_select="http_protocol"
2492 librtmp_protocol_deps="librtmp"
2493 librtmpe_protocol_deps="librtmp"
2494 librtmps_protocol_deps="librtmp"
2495 librtmpt_protocol_deps="librtmp"
2496 librtmpte_protocol_deps="librtmp"
2497 mmsh_protocol_select="http_protocol"
2498 mmst_protocol_select="network"
2499 rtmp_protocol_conflict="librtmp_protocol"
2500 rtmp_protocol_select="tcp_protocol"
2501 rtmp_protocol_suggest="zlib"
2502 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2503 rtmpe_protocol_suggest="zlib"
2504 rtmps_protocol_conflict="librtmp_protocol"
2505 rtmps_protocol_select="tls_protocol"
2506 rtmps_protocol_suggest="zlib"
2507 rtmpt_protocol_select="ffrtmphttp_protocol"
2508 rtmpt_protocol_suggest="zlib"
2509 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2510 rtmpte_protocol_suggest="zlib"
2511 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2512 rtmpts_protocol_suggest="zlib"
2513 rtp_protocol_select="udp_protocol"
2514 sctp_protocol_deps="struct_sctp_event_subscribe"
2515 sctp_protocol_select="network"
2516 srtp_protocol_select="rtp_protocol srtp"
2517 tcp_protocol_select="network"
2518 tls_protocol_deps_any="gnutls openssl"
2519 tls_protocol_select="tcp_protocol"
2520 udp_protocol_select="network"
2521 unix_protocol_deps="sys_un_h"
2522 unix_protocol_select="network"
2523
2524 # filters
2525 asyncts_filter_deps="avresample"
2526 blackframe_filter_deps="gpl"
2527 boxblur_filter_deps="gpl"
2528 bs2b_filter_deps="libbs2b"
2529 cropdetect_filter_deps="gpl"
2530 deinterlace_qsv_filter_deps="libmfx"
2531 deinterlace_vaapi_filter_deps="vaapi"
2532 delogo_filter_deps="gpl"
2533 drawtext_filter_deps="libfreetype"
2534 drawtext_filter_suggest="libfontconfig"
2535 frei0r_filter_deps="frei0r libdl"
2536 frei0r_src_filter_deps="frei0r libdl"
2537 hdcd_filter_deps="libhdcd"
2538 hqdn3d_filter_deps="gpl"
2539 interlace_filter_deps="gpl"
2540 movie_filter_deps="avcodec avformat"
2541 ocv_filter_deps="libopencv"
2542 overlay_qsv_filter_deps="libmfx"
2543 overlay_qsv_filter_select="qsvvpp"
2544 resample_filter_deps="avresample"
2545 scale_filter_deps="swscale"
2546 scale_qsv_filter_deps="libmfx"
2547 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2548 vpp_qsv_filter_deps="libmfx"
2549 vpp_qsv_filter_select="qsvvpp"
2550
2551 # examples
2552 decode_audio_example_deps="avcodec avutil"
2553 decode_video_example_deps="avcodec avutil"
2554 encode_audio_example_deps="avcodec avutil"
2555 encode_video_example_deps="avcodec avutil"
2556 filter_audio_example_deps="avfilter avutil"
2557 metadata_example_deps="avformat avutil"
2558 output_example_deps="avcodec avformat avresample avutil swscale"
2559 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2560 transcode_aac_example_deps="avcodec avformat avresample"
2561
2562 # EXTRALIBS_LIST
2563 cpu_init_extralibs="pthreads_extralibs"
2564 cws2fws_extralibs="zlib_extralibs"
2565
2566 # libraries, in linking order
2567 avcodec_deps="avutil"
2568 avcodec_select="null_bsf"
2569 avdevice_deps="avformat avcodec avutil"
2570 avfilter_deps="avutil"
2571 avformat_deps="avcodec avutil"
2572 avformat_suggest="network"
2573 avresample_deps="avutil"
2574 swscale_deps="avutil"
2575
2576 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2577 avdevice_extralibs="libm_extralibs"
2578 avformat_extralibs="libm_extralibs"
2579 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2580 avresample_extralibs="libm_extralibs"
2581 avutil_extralibs="clock_gettime_extralibs cuda_extralibs cuvid_extralibs d3d11va_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2582 swscale_extralibs="libm_extralibs"
2583
2584 # programs
2585 avconv_deps="avcodec avfilter avformat avresample swscale"
2586 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2587                fps_filter null_filter resample_filter scale_filter
2588                trim_filter"
2589 avconv_suggest="psapi shell32"
2590 avplay_deps="avcodec avfilter avformat avresample sdl"
2591 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2592 avplay_suggest="shell32"
2593 avprobe_deps="avcodec avformat"
2594 avprobe_suggest="shell32"
2595
2596 # documentation
2597 pod2man_deps="doc"
2598 texi2html_deps="doc"
2599
2600 # default parameters
2601
2602 logfile="avbuild/config.log"
2603
2604 # installation paths
2605 prefix_default="/usr/local"
2606 bindir_default='${prefix}/bin'
2607 datadir_default='${prefix}/share/avconv'
2608 docdir_default='${prefix}/share/doc/libav'
2609 incdir_default='${prefix}/include'
2610 libdir_default='${prefix}/lib'
2611 mandir_default='${prefix}/share/man'
2612 shlibdir_default="$libdir_default"
2613
2614 # toolchain
2615 ar_default="ar"
2616 cc_default="gcc"
2617 host_cc_default="gcc"
2618 x86asmexe_default="nasm"
2619 ln_s="ln -s -f"
2620 nm_default="nm -g"
2621 pkg_config_default=pkg-config
2622 ranlib="ranlib"
2623 strip="strip"
2624 version_script='--version-script'
2625
2626 # machine
2627 arch_default=$(uname -m)
2628 cpu="generic"
2629 intrinsics="none"
2630
2631 # OS
2632 target_os_default=$(tolower $(uname -s))
2633 host_os=$target_os_default
2634
2635 # configurable options
2636 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2637
2638 enable asm
2639 enable debug
2640 enable doc
2641 enable faan faandct faanidct
2642 enable optimizations
2643 enable safe_bitstream_reader
2644 enable static
2645 enable swscale_alpha
2646 enable valgrind_backtrace
2647
2648 # By default, enable only those hwaccels that have no external dependencies.
2649 enable d3d11va dxva2 vda vdpau
2650
2651 # internal components are enabled by default
2652 enable $EXTRALIBS_LIST
2653
2654 # Avoid external, non-system, libraries getting enabled by dependency resolution
2655 disable $EXTERNAL_LIBRARY_LIST
2656
2657 # build settings
2658 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2659 LIBPREF="lib"
2660 LIBSUF=".a"
2661 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2662 SLIBPREF="lib"
2663 SLIBSUF=".so"
2664 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2665 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2666 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2667 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2668 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2669 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2670 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2671
2672 asflags_filter=echo
2673 cflags_filter=echo
2674 ldflags_filter=echo
2675
2676 AS_C='-c'
2677 AS_O='-o $@'
2678 CC_C='-c'
2679 CC_E='-E -o $@'
2680 CC_O='-o $@'
2681 OBJCC_C='-c'
2682 OBJCC_E='-E -o $@'
2683 OBJCC_O='-o $@'
2684 X86ASM_O='-o $@'
2685 LD_O='-o $@'
2686 LD_LIB='-l%'
2687 LD_PATH='-L'
2688 HOSTCC_C='-c'
2689 HOSTCC_E='-E -o $@'
2690 HOSTCC_O='-o $@'
2691 HOSTLD_O='-o $@'
2692
2693 host_extralibs='-lm'
2694 host_cflags_filter=echo
2695 host_ldflags_filter=echo
2696
2697 target_path='$(CURDIR)'
2698
2699 # since the object filename is not given with the -MM flag, the compiler
2700 # is only able to print the basename, and we must add the path ourselves
2701 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2702 DEPFLAGS='-MM'
2703
2704 mkdir -p avbuild
2705
2706 # find source path
2707 if test -f configure; then
2708     source_path=.
2709 else
2710     source_path=$(cd $(dirname "$0"); pwd)
2711     echo "$source_path" | grep -q '[[:blank:]]' &&
2712         die "Out of tree builds are impossible with whitespace in source path."
2713     test -e "$source_path/config.h" &&
2714         die "Out of tree builds are impossible with config.h in source dir."
2715 fi
2716
2717 for v in "$@"; do
2718     r=${v#*=}
2719     l=${v%"$r"}
2720     r=$(sh_quote "$r")
2721     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2722 done
2723
2724 find_things(){
2725     thing=$1
2726     pattern=$2
2727     file=$source_path/$3
2728     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2729 }
2730
2731 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2732 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2733 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2734 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2735 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2736 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2737 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2738 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2739 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2740
2741 find_things_extern(){
2742     thing=$1
2743     pattern=$2
2744     file=$source_path/$3
2745     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2746 }
2747
2748 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2749 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2750
2751 AVCODEC_COMPONENTS_LIST="
2752     $BSF_LIST
2753     $DECODER_LIST
2754     $ENCODER_LIST
2755     $HWACCEL_LIST
2756     $PARSER_LIST
2757 "
2758
2759 AVDEVICE_COMPONENTS_LIST="
2760     $INDEV_LIST
2761     $OUTDEV_LIST
2762 "
2763
2764 AVFILTER_COMPONENTS_LIST="
2765     $FILTER_LIST
2766 "
2767
2768 AVFORMAT_COMPONENTS_LIST="
2769     $DEMUXER_LIST
2770     $MUXER_LIST
2771     $PROTOCOL_LIST
2772 "
2773
2774 ALL_COMPONENTS="
2775     $AVCODEC_COMPONENTS_LIST
2776     $AVDEVICE_COMPONENTS_LIST
2777     $AVFILTER_COMPONENTS_LIST
2778     $AVFORMAT_COMPONENTS_LIST
2779 "
2780
2781 for n in $COMPONENT_LIST; do
2782     v=$(toupper ${n%s})_LIST
2783     eval enable \$$v
2784     eval ${n}_if_any="\$$v"
2785 done
2786
2787 enable $ARCH_EXT_LIST
2788
2789 die_unknown(){
2790     echo "Unknown option \"$1\"."
2791     echo "See $0 --help for available options."
2792     exit 1
2793 }
2794
2795 print_3_columns() {
2796     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2797 }
2798
2799 show_list() {
2800     suffix=_$1
2801     shift
2802     echo $* | sed s/$suffix//g | print_3_columns
2803     exit 0
2804 }
2805
2806 rand_list(){
2807     IFS=', '
2808     set -- $*
2809     unset IFS
2810     for thing; do
2811         comp=${thing%:*}
2812         prob=${thing#$comp}
2813         prob=${prob#:}
2814         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2815         echo "prob ${prob:-0.5}"
2816         printf '%s\n' $comp
2817     done
2818 }
2819
2820 do_random(){
2821     action=$1
2822     shift
2823     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2824     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2825 }
2826
2827 for opt do
2828     optval="${opt#*=}"
2829     case "$opt" in
2830         --extra-ldflags=*)
2831             add_ldflags $optval
2832         ;;
2833         --extra-ldexeflags=*)
2834             add_ldexeflags $optval
2835         ;;
2836         --extra-ldsoflags=*)
2837             add_ldsoflags $optval
2838         ;;
2839         --extra-libs=*)
2840             add_extralibs $optval
2841         ;;
2842         --disable-devices)
2843             disable $INDEV_LIST $OUTDEV_LIST
2844         ;;
2845         --enable-debug=*)
2846             debuglevel="$optval"
2847         ;;
2848         --disable-programs)
2849             disable $PROGRAM_LIST
2850         ;;
2851         --disable-everything)
2852             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2853         ;;
2854         --disable-all)
2855             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2856             disable $LIBRARY_LIST $PROGRAM_LIST doc
2857         ;;
2858         --enable-random|--disable-random)
2859             action=${opt%%-random}
2860             do_random ${action#--} $COMPONENT_LIST
2861         ;;
2862         --enable-random=*|--disable-random=*)
2863             action=${opt%%-random=*}
2864             do_random ${action#--} $optval
2865         ;;
2866         --enable-*=*|--disable-*=*)
2867             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2868             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2869             eval list=\$$(toupper $thing)_LIST
2870             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2871             $action $(filter "$name" $list)
2872         ;;
2873         --enable-avserver|--disable-avserver*)
2874             warn "avserver has been removed, the ${opt} option is only"\
2875                  "provided for compatibility and will be removed in the future"
2876         ;;
2877         --enable-yasm|--disable-yasm)
2878             warn "The ${opt} option is only provided for compatibility and will be\n"\
2879                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2880             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2881         ;;
2882         --enable-?*|--disable-?*)
2883             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2884             if is_in $option $COMPONENT_LIST; then
2885                 test $action = disable && action=unset
2886                 eval $action \$$(toupper ${option%s})_LIST
2887             elif is_in $option $CMDLINE_SELECT; then
2888                 $action $option
2889             else
2890                 die_unknown $opt
2891             fi
2892         ;;
2893         --list-*)
2894             NAME="${opt#--list-}"
2895             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2896             NAME=${NAME%s}
2897             eval show_list $NAME \$$(toupper $NAME)_LIST
2898         ;;
2899         --help|-h) show_help
2900         ;;
2901         --quiet|-q) quiet=yes
2902         ;;
2903         *)
2904             optname="${opt%%=*}"
2905             optname="${optname#--}"
2906             optname=$(echo "$optname" | sed 's/-/_/g')
2907             if is_in $optname $CMDLINE_SET; then
2908                 eval $optname='$optval'
2909             elif is_in $optname $CMDLINE_APPEND; then
2910                 append $optname "$optval"
2911             else
2912                 die_unknown $opt
2913             fi
2914         ;;
2915     esac
2916 done
2917
2918 for e in $env; do
2919     eval "export $e"
2920 done
2921
2922 disabled logging && logfile=/dev/null
2923
2924 # Die early if licensing-related configure options are incompatible.
2925 die_license_disabled() {
2926     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2927 }
2928
2929 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2930 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2931 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2932
2933 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2934
2935 enabled_all gnutls openssl &&
2936     die "GnuTLS and OpenSSL must not be enabled at the same time."
2937
2938 # Disable all the library-specific components if the library itself
2939 # is disabled, see AVCODEC_LIST and following _LIST variables.
2940
2941 disable_components(){
2942     disabled ${1} && disable $(
2943         eval components="\$$(toupper ${1})_COMPONENTS"
2944         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2945     )
2946 }
2947
2948 map 'disable_components $v' $LIBRARY_LIST
2949
2950 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2951 set >> $logfile
2952
2953 case "$toolchain" in
2954     *-asan)
2955         cc_default="${toolchain%-asan}"
2956         add_cflags  -fsanitize=address
2957         add_ldflags -fsanitize=address
2958     ;;
2959     *-msan)
2960         cc_default="${toolchain%-msan}"
2961         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2962         add_ldflags -fsanitize=memory
2963     ;;
2964     *-tsan)
2965         cc_default="${toolchain%-tsan}"
2966         add_cflags  -fsanitize=thread -fPIE
2967         add_ldflags -fsanitize=thread -pie
2968         case "$toolchain" in
2969             gcc-tsan)
2970                 add_cflags  -fPIC
2971                 add_ldflags -fPIC
2972                 ;;
2973         esac
2974     ;;
2975     *-usan)
2976         cc_default="${toolchain%-usan}"
2977         add_cflags  -fsanitize=undefined
2978         add_ldflags -fsanitize=undefined
2979         case "$toolchain" in
2980             clang-usan)
2981                 add_cflags -O1
2982                 ;;
2983         esac
2984     ;;
2985     valgrind-*)
2986         target_exec_default="valgrind"
2987         case "$toolchain" in
2988             valgrind-massif)
2989                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2990                 ;;
2991             valgrind-memcheck)
2992                 target_exec_args="--track-origins=yes --leak-check=full"
2993                 ;;
2994         esac
2995     ;;
2996     msvc)
2997         # Check whether the current MSVC version needs the C99 converter.
2998         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2999         # support enough of C99 to build libav. Default to the new
3000         # behaviour if the regexp was unable to match anything, since this
3001         # successfully parses the version number of existing supported
3002         # versions that require the converter (MSVC 2010 and 2012).
3003         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
3004         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
3005             cc_default="cl"
3006         else
3007             cc_default="c99wrap cl"
3008         fi
3009         ld_default="$source_path/compat/windows/mslink"
3010         nm_default="dumpbin -symbols"
3011         ar_default="lib"
3012         case "$arch" in
3013         arm*)
3014             as_default="armasm"
3015             ;;
3016         esac
3017         target_os_default="win32"
3018         # Use a relative path for TMPDIR. This makes sure all the
3019         # ffconf temp files are written with a relative path, avoiding
3020         # issues with msys/win32 path conversion for MSVC parameters
3021         # such as -Fo<file> or -out:<file>.
3022         TMPDIR=.
3023     ;;
3024     icl)
3025         cc_default="icl"
3026         ld_default="xilink"
3027         nm_default="dumpbin -symbols"
3028         ar_default="xilib"
3029         target_os_default="win32"
3030         TMPDIR=.
3031     ;;
3032     gcov)
3033         add_cflags  -fprofile-arcs -ftest-coverage
3034         add_ldflags -fprofile-arcs -ftest-coverage
3035     ;;
3036     llvm-cov)
3037         add_cflags -fprofile-arcs -ftest-coverage
3038         add_ldflags --coverage
3039     ;;
3040     hardened)
3041         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3042         add_cflags   -fno-strict-overflow -fstack-protector-all
3043         add_ldflags  -Wl,-z,relro -Wl,-z,now
3044     ;;
3045     ?*)
3046         die "Unknown toolchain $toolchain"
3047     ;;
3048 esac
3049
3050 test -n "$cross_prefix" && enable cross_compile
3051
3052 if enabled cross_compile; then
3053     test -n "$arch" && test -n "$target_os" ||
3054         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3055 fi
3056
3057 ar_default="${cross_prefix}${ar_default}"
3058 cc_default="${cross_prefix}${cc_default}"
3059 objcc_default="${cross_prefix}${objcc_default}"
3060 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3061 nm_default="${cross_prefix}${nm_default}"
3062 pkg_config_default="${cross_prefix}${pkg_config_default}"
3063 ranlib="${cross_prefix}${ranlib}"
3064 strip="${cross_prefix}${strip}"
3065
3066 sysinclude_default="${sysroot}/usr/include"
3067
3068 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3069 enabled cross_compile || host_cc_default=$cc
3070 set_default host_cc
3071
3072 if ! $pkg_config --version >/dev/null 2>&1; then
3073     warn "$pkg_config not found, library detection may fail."
3074     pkg_config=false
3075 fi
3076
3077 exesuf() {
3078     case $1 in
3079         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3080     esac
3081 }
3082
3083 EXESUF=$(exesuf $target_os)
3084 HOSTEXESUF=$(exesuf $host_os)
3085
3086 # set temporary file name
3087 : ${TMPDIR:=$TEMPDIR}
3088 : ${TMPDIR:=$TMP}
3089 : ${TMPDIR:=/tmp}
3090
3091 if ! check_cmd mktemp -u XXXXXX; then
3092     # simple replacement for missing mktemp
3093     # NOT SAFE FOR GENERAL USE
3094     mktemp(){
3095         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3096         echo "$tmpname"
3097         mkdir "$tmpname"
3098     }
3099 fi
3100
3101 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3102     die "Unable to create temporary directory in $TMPDIR."
3103
3104 tmpfile(){
3105     tmp="${AVTMPDIR}/test"$2
3106     (set -C; exec > $tmp) 2> /dev/null ||
3107         die "Unable to create temporary file in $AVTMPDIR."
3108     eval $1=$tmp
3109 }
3110
3111 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3112 trap 'exit 2' INT
3113
3114 tmpfile TMPASM .asm
3115 tmpfile TMPC   .c
3116 tmpfile TMPE   $EXESUF
3117 tmpfile TMPH   .h
3118 tmpfile TMPO   .o
3119 tmpfile TMPS   .S
3120 tmpfile TMPSH  .sh
3121 tmpfile TMPV   .ver
3122
3123 unset -f mktemp
3124
3125 chmod +x $TMPE
3126
3127 # make sure we can execute files in $TMPDIR
3128 cat > $TMPSH 2>> $logfile <<EOF
3129 #! /bin/sh
3130 EOF
3131 chmod +x $TMPSH >> $logfile 2>&1
3132 if ! $TMPSH >> $logfile 2>&1; then
3133     cat <<EOF
3134 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3135 variable to another directory and make sure that it is not mounted noexec.
3136 EOF
3137     die "Sanity test failed."
3138 fi
3139
3140 armasm_flags(){
3141     for flag; do
3142         case $flag in
3143             # Filter out MSVC cl.exe options from cflags that shouldn't
3144             # be passed to gas-preprocessor
3145             -M[TD]*)                                            ;;
3146             *)                  echo $flag                      ;;
3147         esac
3148    done
3149 }
3150
3151 cparser_flags(){
3152     for flag; do
3153         case $flag in
3154             -Wno-switch)             echo -Wno-switch-enum ;;
3155             -Wno-format-zero-length) ;;
3156             -Wdisabled-optimization) ;;
3157             -Wno-pointer-sign)       echo -Wno-other ;;
3158             *)                       echo $flag ;;
3159         esac
3160     done
3161 }
3162
3163 msvc_common_flags(){
3164     for flag; do
3165         case $flag in
3166             # In addition to specifying certain flags under the compiler
3167             # specific filters, they must be specified here as well or else the
3168             # generic catch all at the bottom will print the original flag.
3169             -Wall)                ;;
3170             -Wextra)              ;;
3171             -std=c99)             ;;
3172             # Common flags
3173             -fomit-frame-pointer) ;;
3174             -g)                   echo -Z7 ;;
3175             -fno-math-errno)      ;;
3176             -fno-common)          ;;
3177             -fno-signed-zeros)    ;;
3178             -fPIC)                ;;
3179             -mthumb)              ;;
3180             -march=*)             ;;
3181             -lz)                  echo zlib.lib ;;
3182             -lx264)               echo libx264.lib ;;
3183             -l*)                  echo ${flag#-l}.lib ;;
3184             -L*)                  echo -libpath:${flag#-L} ;;
3185             *)                    echo $flag ;;
3186         esac
3187     done
3188 }
3189
3190 msvc_flags(){
3191     msvc_common_flags "$@"
3192     for flag; do
3193         case $flag in
3194             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3195                                        -wd4554 ;;
3196             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3197                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3198                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3199                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3200         esac
3201     done
3202 }
3203
3204 icl_flags(){
3205     msvc_common_flags "$@"
3206     for flag; do
3207         case $flag in
3208             # Despite what Intel's documentation says -Wall, which is supported
3209             # on Windows, does enable remarks so disable them here.
3210             -Wall)                echo $flag -Qdiag-disable:remark ;;
3211             -std=c99)             echo -Qstd=c99 ;;
3212         esac
3213     done
3214 }
3215
3216 pgi_flags(){
3217     for flag; do
3218         case $flag in
3219             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3220             -fomit-frame-pointer) echo -Mnoframe ;;
3221             -g)                   echo -gopt ;;
3222             *)                    echo $flag ;;
3223         esac
3224     done
3225 }
3226
3227 suncc_flags(){
3228     for flag; do
3229         case $flag in
3230             -march=*|-mcpu=*)
3231                 case "${flag#*=}" in
3232                     native)                   echo -xtarget=native       ;;
3233                     v9|niagara)               echo -xarch=sparc          ;;
3234                     ultrasparc)               echo -xarch=sparcvis       ;;
3235                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3236                     i586|pentium)             echo -xchip=pentium        ;;
3237                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3238                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3239                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3240                     pentium4*)          echo -xtarget=pentium4           ;;
3241                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3242                     *-sse3)             echo -xarch=sse3                 ;;
3243                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3244                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3245                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3246                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3247                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3248                     k8|opteron|athlon64|athlon-fx)
3249                                                echo -xarch=sse2a         ;;
3250                     athlon*)                   echo -xarch=pentium_proa  ;;
3251                 esac
3252                 ;;
3253             -std=c99)             echo -xc99              ;;
3254             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3255             -fPIC)                echo -KPIC -xcode=pic32 ;;
3256             -W*,*)                echo $flag              ;;
3257             -f*-*|-W*|-mimpure-text)                      ;;
3258             -shared)              echo -G                 ;;
3259             *)                    echo $flag              ;;
3260         esac
3261     done
3262 }
3263
3264 tms470_flags(){
3265     for flag; do
3266         case $flag in
3267             -march=*|-mcpu=*)
3268                 case "${flag#*=}" in
3269                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3270                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3271                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3272                     armv6*|arm11*)          echo -mv=6   ;;
3273                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3274                                             echo -mv=5e  ;;
3275                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3276                 esac
3277                 ;;
3278             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3279             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3280             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3281             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3282             -msoft-float)   echo --float_support=vfplib       ;;
3283             -O[0-3]|-mf=*)  echo $flag                        ;;
3284             -g)             echo -g -mn                       ;;
3285             -pds=*)         echo $flag                        ;;
3286             -D*|-I*)        echo $flag                        ;;
3287             --gcc|--abi=*)  echo $flag                        ;;
3288             -me)            echo $flag                        ;;
3289         esac
3290     done
3291 }
3292
3293 probe_cc(){
3294     pfx=$1
3295     _cc=$2
3296
3297     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3298     unset _ld_o _ldflags _ld_lib _ld_path
3299     unset _depflags _DEPCMD _DEPFLAGS
3300     _flags_filter=echo
3301
3302     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3303         _type=llvm_gcc
3304         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3305         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3306         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3307         _cflags_speed='-O3'
3308         _cflags_size='-Os'
3309     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3310         _type=gcc
3311         gcc_version=$($_cc --version | head -n1)
3312         gcc_basever=$($_cc -dumpversion)
3313         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3314         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3315         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3316         if ! $_cc -dumpversion | grep -q '^2\.'; then
3317             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3318         fi
3319         _cflags_speed='-O3'
3320         _cflags_size='-Os'
3321     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3322         _type=icc
3323         _ident=$($_cc --version | head -n1)
3324         _depflags='-MMD'
3325         _cflags_speed='-O3'
3326         _cflags_size='-Os'
3327         _cflags_noopt='-O1'
3328     elif $_cc -v 2>&1 | grep -q xlc; then
3329         _type=xlc
3330         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3331         _cflags_speed='-O5'
3332         _cflags_size='-O5 -qcompact'
3333     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3334         test -d "$sysroot" || die "No valid sysroot specified."
3335         _type=armcc
3336         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3337         armcc_conf="$PWD/armcc.conf"
3338         $_cc --arm_linux_configure                 \
3339              --arm_linux_config_file="$armcc_conf" \
3340              --configure_sysroot="$sysroot"        \
3341              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3342              die "Error creating armcc configuration file."
3343         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3344         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3345         as_default="${cross_prefix}gcc"
3346         _depflags='-MMD'
3347         _cflags_speed='-O3'
3348         _cflags_size='-Os'
3349     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3350         _type=tms470
3351         _ident=$($_cc -version | head -n1 | tr -s ' ')
3352         _flags='--gcc --abi=eabi -me'
3353         _cc_e='-ppl -fe=$@'
3354         _cc_o='-fe=$@'
3355         _depflags='-ppa -ppd=$(@:.o=.d)'
3356         _cflags_speed='-O3 -mf=5'
3357         _cflags_size='-O3 -mf=2'
3358         _flags_filter=tms470_flags
3359     elif $_cc -v 2>&1 | grep -q clang; then
3360         _type=clang
3361         _ident=$($_cc --version 2>/dev/null | head -n1)
3362         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3363         _cflags_speed='-O3'
3364         _cflags_size='-Os'
3365     elif $_cc -V 2>&1 | grep -q Sun; then
3366         _type=suncc
3367         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3368         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3369         _DEPFLAGS='-xM1 -xc99'
3370         _ldflags='-std=c99'
3371         _cflags_speed='-O5'
3372         _cflags_size='-O5 -xspace'
3373         _flags_filter=suncc_flags
3374     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3375         _type=pathscale
3376         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3377         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3378         _cflags_speed='-O2'
3379         _cflags_size='-Os'
3380         _flags_filter='filter_out -Wdisabled-optimization'
3381     elif $_cc -v 2>&1 | grep -q Open64; then
3382         _type=open64
3383         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3384         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3385         _cflags_speed='-O2'
3386         _cflags_size='-Os'
3387         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3388     elif $_cc -V 2>&1 | grep -q Portland; then
3389         _type=pgi
3390         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3391         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3392         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3393         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3394         _cflags_noopt="-O1"
3395         _flags_filter=pgi_flags
3396     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3397         _type=armasm
3398         _ident=$($_cc | head -n1)
3399         # 4509: "This form of conditional instruction is deprecated"
3400         _flags="-nologo -ignore 4509"
3401         _flags_filter=armasm_flags
3402     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3403         _type=msvc
3404         _ident=$($_cc 2>&1 | head -n1)
3405         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3406         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3407         _cflags_speed="-O2"
3408         _cflags_size="-O1"
3409         _cflags_noopt="-O1"
3410         if $_cc -nologo- 2>&1 | grep -q Linker; then
3411             _ld_o='-out:$@'
3412         else
3413             _ld_o='-Fe$@'
3414         fi
3415         _cc_o='-Fo$@'
3416         _cc_e='-P -Fi$@'
3417         _flags_filter=msvc_flags
3418         _ld_lib='lib%.a'
3419         _ld_path='-libpath:'
3420         _flags='-nologo'
3421     elif $_cc 2>&1 | grep -q Intel; then
3422         _type=icl
3423         _ident=$($_cc 2>&1 | head -n1)
3424         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3425         # Not only is O3 broken on 13.x+ but it is slower on all previous
3426         # versions (tested) as well.
3427         _cflags_speed="-O2"
3428         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3429         if $_cc 2>&1 | grep -q Linker; then
3430             _ld_o='-out:$@'
3431         else
3432             _ld_o='-Fe$@'
3433         fi
3434         _cc_o='-Fo$@'
3435         _cc_e='-P'
3436         _flags_filter=icl_flags
3437         _ld_lib='lib%.a'
3438         _ld_path='-libpath:'
3439         # -Qdiag-error to make icl error when seeing certain unknown arguments
3440         _flags='-nologo -Qdiag-error:4044,10157'
3441         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3442         # with MSVC which enables it by default.
3443         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3444     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3445         # lld can emulate multiple different linkers; in ms link.exe mode,
3446         # the -? parameter gives the help output which contains an identifyable
3447         # string, while it gives an error in other modes.
3448         _type=lld-link
3449         # The link.exe mode doesn't have a switch for getting the version,
3450         # but we can force it back to gnu mode and get the version from there.
3451         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3452         _ld_o='-out:$@'
3453         _flags_filter=msvc_flags
3454         _ld_lib='lib%.a'
3455         _ld_path='-libpath:'
3456     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3457         _type=cparser
3458         _ident=$($_cc --version | head -n1)
3459         _depflags='-MMD'
3460         _cflags_speed='-O4'
3461         _cflags_size='-O2'
3462         _flags_filter=cparser_flags
3463     fi
3464
3465     eval ${pfx}_type=\$_type
3466     eval ${pfx}_ident=\$_ident
3467 }
3468
3469 set_ccvars(){
3470     eval ${1}_C=\${_cc_c-\${${1}_C}}
3471     eval ${1}_E=\${_cc_e-\${${1}_E}}
3472     eval ${1}_O=\${_cc_o-\${${1}_O}}
3473
3474     if [ -n "$_depflags" ]; then
3475         eval ${1}_DEPFLAGS=\$_depflags
3476     else
3477         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3478         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3479         eval DEP${1}FLAGS=\$_flags
3480     fi
3481 }
3482
3483 probe_cc cc "$cc"
3484 cflags_filter=$_flags_filter
3485 cflags_speed=$_cflags_speed
3486 cflags_size=$_cflags_size
3487 cflags_noopt=$_cflags_noopt
3488 add_cflags $_flags $_cflags
3489 cc_ldflags=$_ldflags
3490 set_ccvars CC
3491
3492 probe_cc hostcc "$host_cc"
3493 host_cflags_filter=$_flags_filter
3494 host_cflags_speed=$_cflags_speed
3495 add_host_cflags  $_flags $_cflags
3496 set_ccvars HOSTCC
3497
3498 test -n "$cc_type" && enable $cc_type ||
3499     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3500
3501 : ${as_default:=$cc}
3502 : ${objcc_default:=$cc}
3503 : ${dep_cc_default:=$cc}
3504 : ${ld_default:=$cc}
3505 : ${host_ld_default:=$host_cc}
3506 set_default ar as objcc dep_cc ld host_ld
3507
3508 probe_cc as "$as"
3509 asflags_filter=$_flags_filter
3510 add_asflags $_flags $_cflags
3511 set_ccvars AS
3512
3513 probe_cc objcc "$objcc"
3514 objcflags_filter=$_flags_filter
3515 add_objcflags $_flags $_cflags
3516 set_ccvars OBJC
3517
3518 probe_cc ld "$ld"
3519 ldflags_filter=$_flags_filter
3520 add_ldflags $_flags $_ldflags
3521 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3522 LD_O=${_ld_o-$LD_O}
3523 LD_LIB=${_ld_lib-$LD_LIB}
3524 LD_PATH=${_ld_path-$LD_PATH}
3525
3526 probe_cc hostld "$host_ld"
3527 host_ldflags_filter=$_flags_filter
3528 add_host_ldflags $_flags $_ldflags
3529 HOSTLD_O=${_ld_o-$HOSTLD_O}
3530
3531 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3532     probe_cc depcc "$dep_cc"
3533     CCDEP=${_DEPCMD:-$DEPCMD}
3534     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3535     DEPCCFLAGS=$_flags
3536 fi
3537
3538 if $ar 2>&1 | grep -q Microsoft; then
3539     arflags="-nologo"
3540     ar_o='-out:$@'
3541 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3542     arflags="rq"
3543     ar_o='$@'
3544 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3545     arflags='-Xany -r -c'
3546     ar_o='$@'
3547 else
3548     arflags="rc"
3549     ar_o='$@'
3550 fi
3551
3552 add_cflags $extra_cflags
3553 add_objcflags $extra_objcflags
3554 add_asflags $extra_cflags
3555
3556 if test -n "$sysroot"; then
3557     case "$cc_type" in
3558         gcc|llvm_gcc|clang)
3559             add_cppflags --sysroot="$sysroot"
3560             add_ldflags --sysroot="$sysroot"
3561         ;;
3562         tms470)
3563             add_cppflags -I"$sysinclude"
3564             add_ldflags  --sysroot="$sysroot"
3565         ;;
3566     esac
3567 fi
3568
3569 if test "$cpu" = host; then
3570     enabled cross_compile &&
3571         die "--cpu=host makes no sense when cross-compiling."
3572
3573     case "$cc_type" in
3574         gcc|llvm_gcc)
3575             check_native(){
3576                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3577                 sed -n "/cc1.*$1=/{
3578                             s/.*$1=\\([^ ]*\\).*/\\1/
3579                             p
3580                             q
3581                         }" $TMPE
3582             }
3583             cpu=$(check_native -march || check_native -mcpu)
3584         ;;
3585     esac
3586
3587     test "${cpu:-host}" = host &&
3588         die "--cpu=host not supported with compiler $cc"
3589 fi
3590
3591 # Deal with common $arch aliases
3592 case "$arch" in
3593     aarch64|arm64)
3594         arch="aarch64"
3595     ;;
3596     arm*)
3597         arch="arm"
3598     ;;
3599     mips*|IP*)
3600         case "$arch" in
3601         *el)
3602             add_cppflags -EL
3603             add_ldflags -EL
3604         ;;
3605         *eb)
3606             add_cppflags -EB
3607             add_ldflags -EB
3608         ;;
3609         esac
3610         arch="mips"
3611     ;;
3612     parisc*|hppa*)
3613         arch="parisc"
3614     ;;
3615     "Power Macintosh"|ppc*|powerpc*)
3616         arch="ppc"
3617     ;;
3618     s390|s390x)
3619         arch="s390"
3620     ;;
3621     sh4|sh)
3622         arch="sh4"
3623     ;;
3624     sun4u|sparc*)
3625         arch="sparc"
3626     ;;
3627     tilegx|tile-gx)
3628         arch="tilegx"
3629     ;;
3630     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3631         arch="x86"
3632     ;;
3633 esac
3634
3635 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3636 enable $arch
3637
3638 # Add processor-specific flags
3639 if enabled aarch64; then
3640
3641     case $cpu in
3642         armv*)
3643             cpuflags="-march=$cpu"
3644         ;;
3645         *)
3646             cpuflags="-mcpu=$cpu"
3647         ;;
3648     esac
3649
3650 elif enabled alpha; then
3651
3652     cpuflags="-mcpu=$cpu"
3653
3654 elif enabled arm; then
3655
3656     check_arm_arch() {
3657         check_cpp_condition stddef.h \
3658             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3659             $cpuflags
3660     }
3661
3662     probe_arm_arch() {
3663         if   check_arm_arch 4;        then echo armv4
3664         elif check_arm_arch 4T;       then echo armv4t
3665         elif check_arm_arch 5;        then echo armv5
3666         elif check_arm_arch 5E;       then echo armv5e
3667         elif check_arm_arch 5T;       then echo armv5t
3668         elif check_arm_arch 5TE;      then echo armv5te
3669         elif check_arm_arch 5TEJ;     then echo armv5te
3670         elif check_arm_arch 6;        then echo armv6
3671         elif check_arm_arch 6J;       then echo armv6j
3672         elif check_arm_arch 6K;       then echo armv6k
3673         elif check_arm_arch 6Z;       then echo armv6z
3674         elif check_arm_arch 6ZK;      then echo armv6zk
3675         elif check_arm_arch 6T2;      then echo armv6t2
3676         elif check_arm_arch 7;        then echo armv7
3677         elif check_arm_arch 7A  7_A;  then echo armv7-a
3678         elif check_arm_arch 7S;       then echo armv7-a
3679         elif check_arm_arch 7R  7_R;  then echo armv7-r
3680         elif check_arm_arch 7M  7_M;  then echo armv7-m
3681         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3682         elif check_arm_arch 8A  8_A;  then echo armv8-a
3683         fi
3684     }
3685
3686     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3687
3688     case $cpu in
3689         armv*)
3690             cpuflags="-march=$cpu"
3691             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3692         ;;
3693         *)
3694             cpuflags="-mcpu=$cpu"
3695             case $cpu in
3696                 cortex-a*)                               subarch=armv7a  ;;
3697                 cortex-r*)                               subarch=armv7r  ;;
3698                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3699                 arm11*)                                  subarch=armv6   ;;
3700                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3701                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3702                 *)                             subarch=$(probe_arm_arch) ;;
3703             esac
3704         ;;
3705     esac
3706
3707     case "$subarch" in
3708         armv5t*)    enable fast_clz                ;;
3709         armv[6-8]*) enable fast_clz fast_unaligned ;;
3710     esac
3711
3712 elif enabled avr32; then
3713
3714     case $cpu in
3715         ap7[02]0[0-2])
3716             subarch="avr32_ap"
3717             cpuflags="-mpart=$cpu"
3718         ;;
3719         ap)
3720             subarch="avr32_ap"
3721             cpuflags="-march=$cpu"
3722         ;;
3723         uc3[ab]*)
3724             subarch="avr32_uc"
3725             cpuflags="-mcpu=$cpu"
3726         ;;
3727         uc)
3728             subarch="avr32_uc"
3729             cpuflags="-march=$cpu"
3730         ;;
3731     esac
3732
3733 elif enabled bfin; then
3734
3735     cpuflags="-mcpu=$cpu"
3736
3737 elif enabled mips; then
3738
3739     cpuflags="-march=$cpu"
3740
3741 elif enabled ppc; then
3742
3743     disable ldbrx
3744
3745     case $(tolower $cpu) in
3746         601|ppc601|powerpc601)
3747             cpuflags="-mcpu=601"
3748             disable altivec
3749         ;;
3750         603*|ppc603*|powerpc603*)
3751             cpuflags="-mcpu=603"
3752             disable altivec
3753         ;;
3754         604*|ppc604*|powerpc604*)
3755             cpuflags="-mcpu=604"
3756             disable altivec
3757         ;;
3758         g3|75*|ppc75*|powerpc75*)
3759             cpuflags="-mcpu=750"
3760             disable altivec
3761         ;;
3762         g4|745*|ppc745*|powerpc745*)
3763             cpuflags="-mcpu=7450"
3764             disable vsx
3765         ;;
3766         74*|ppc74*|powerpc74*)
3767             cpuflags="-mcpu=7400"
3768             disable vsx
3769         ;;
3770         g5|970|ppc970|powerpc970)
3771             cpuflags="-mcpu=970"
3772             disable vsx
3773         ;;
3774         power[3-6]*)
3775             cpuflags="-mcpu=$cpu"
3776             disable vsx
3777         ;;
3778         power[7-8]*)
3779             cpuflags="-mcpu=$cpu"
3780             enable ldbrx
3781         ;;
3782         cell)
3783             cpuflags="-mcpu=cell"
3784             enable ldbrx
3785             disable vsx
3786         ;;
3787         e500mc)
3788             cpuflags="-mcpu=e500mc"
3789             disable altivec
3790         ;;
3791         e500v2)
3792             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3793             disable altivec
3794             disable dcbzl
3795         ;;
3796         e500)
3797             cpuflags="-mcpu=8540 -mhard-float"
3798             disable altivec
3799             disable dcbzl
3800         ;;
3801     esac
3802
3803 elif enabled sparc; then
3804
3805     case $cpu in
3806         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3807             cpuflags="-mcpu=$cpu"
3808         ;;
3809         ultrasparc*|niagara[234])
3810             cpuflags="-mcpu=$cpu"
3811         ;;
3812     esac
3813
3814 elif enabled x86; then
3815
3816     case $cpu in
3817         i[345]86|pentium)
3818             cpuflags="-march=$cpu"
3819             disable i686
3820             disable mmx
3821         ;;
3822         # targets that do NOT support nopl and conditional mov (cmov)
3823         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3824             cpuflags="-march=$cpu"
3825             disable i686
3826         ;;
3827         # targets that do support nopl and conditional mov (cmov)
3828         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3829             cpuflags="-march=$cpu"
3830             enable i686
3831             enable fast_cmov
3832         ;;
3833         # targets that do support conditional mov but on which it's slow
3834         pentium4|pentium4m|prescott|nocona)
3835             cpuflags="-march=$cpu"
3836             enable i686
3837             disable fast_cmov
3838         ;;
3839     esac
3840
3841 fi
3842
3843 if [ "$cpu" != generic ]; then
3844     add_cflags  $cpuflags
3845     add_asflags $cpuflags
3846     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3847 fi
3848
3849 # compiler sanity check
3850 check_exec <<EOF
3851 int main(void){ return 0; }
3852 EOF
3853 if test "$?" != 0; then
3854     echo "$cc is unable to create an executable file."
3855     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3856         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3857         echo "Only do this if you know what cross compiling means."
3858     fi
3859     die "C compiler test failed."
3860 fi
3861
3862 add_cppflags -D_ISOC99_SOURCE
3863
3864 # some compilers silently accept -std=c11, so we also need to check that the
3865 # version macro is defined properly
3866 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3867     add_cflags -std=c11 ||
3868     check_cflags -std=c99
3869
3870 check_cppflags -D_FILE_OFFSET_BITS=64
3871 check_cppflags -D_LARGEFILE_SOURCE
3872
3873 add_host_cppflags -D_ISOC99_SOURCE
3874 check_host_cflags -std=c99
3875 check_host_cflags -Wall
3876 check_host_cflags $host_cflags_speed
3877
3878 check_64bit(){
3879     arch32=$1
3880     arch64=$2
3881     expr=$3
3882     check_code cc "" "int test[2*($expr) - 1]" &&
3883         subarch=$arch64 || subarch=$arch32
3884 }
3885
3886 case "$arch" in
3887     aarch64|alpha|ia64)
3888         spic=$shared
3889     ;;
3890     mips)
3891         check_64bit mips mips64 '_MIPS_SIM > 1'
3892         spic=$shared
3893     ;;
3894     parisc)
3895         check_64bit parisc parisc64 'sizeof(void *) > 4'
3896         spic=$shared
3897     ;;
3898     ppc)
3899         check_64bit ppc ppc64 'sizeof(void *) > 4'
3900         spic=$shared
3901     ;;
3902     s390)
3903         check_64bit s390 s390x 'sizeof(void *) > 4'
3904         spic=$shared
3905     ;;
3906     sparc)
3907         check_64bit sparc sparc64 'sizeof(void *) > 4'
3908         spic=$shared
3909     ;;
3910     x86)
3911         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3912         if test "$subarch" = "x86_64"; then
3913             spic=$shared
3914         fi
3915     ;;
3916 esac
3917
3918 enable $subarch
3919 enabled spic && enable_weak pic
3920
3921 enabled x86_64 && objformat=elf64 || objformat="elf32"
3922
3923 # OS specific
3924 case $target_os in
3925     aix)
3926         SHFLAGS=-shared
3927         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3928         enabled shared && add_ldflags -Wl,-brtl
3929         ;;
3930     android)
3931         disable symver
3932         enable section_data_rel_ro
3933         SLIB_INSTALL_NAME='$(SLIBNAME)'
3934         SLIB_INSTALL_LINKS=
3935         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3936         ;;
3937     haiku)
3938         prefix_default="/boot/common"
3939         network_extralibs="-lnetwork"
3940         host_extralibs=
3941         ;;
3942     sunos)
3943         SHFLAGS='-shared -Wl,-h,$$(@F)'
3944         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3945         network_extralibs="-lsocket -lnsl"
3946         # When using suncc to build, the Solaris linker will mark
3947         # an executable with each instruction set encountered by
3948         # the Solaris assembler.  As our libraries contain their own
3949         # guards for processor-specific code, instead suppress
3950         # generation of the HWCAPS ELF section on Solaris x86 only.
3951         enabled_all suncc x86 &&
3952             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3953             add_ldflags -Wl,-M,mapfile
3954         nm_default='nm -P -g'
3955         version_script='-M'
3956         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3957         ;;
3958     netbsd)
3959         disable symver
3960         oss_indev_extralibs="-lossaudio"
3961         oss_outdev_extralibs="-lossaudio"
3962         ;;
3963     openbsd|bitrig)
3964         disable symver
3965         SHFLAGS='-shared'
3966         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3967         SLIB_INSTALL_LINKS=
3968         oss_indev_extralibs="-lossaudio"
3969         oss_outdev_extralibs="-lossaudio"
3970         ;;
3971     dragonfly)
3972         disable symver
3973         ;;
3974     freebsd)
3975         ;;
3976     bsd/os)
3977         add_extralibs -lpoll -lgnugetopt
3978         ;;
3979     darwin)
3980         enabled ppc && add_asflags -force_cpusubtype_ALL
3981         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3982         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3983         add_ldflags -Wl,-dynamic,-search_paths_first
3984         check_cflags -Werror=partial-availability
3985         SLIBSUF=".dylib"
3986         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3987         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3988         enabled x86_64 && objformat="macho64" || objformat="macho32"
3989         enabled_any pic shared ||
3990             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3991         check_header dispatch/dispatch.h &&
3992             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3993         if test -n "$sysroot"; then
3994             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3995             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
3996         fi
3997         ;;
3998     msys*)
3999         die "Native MSYS builds are discouraged, please use the MINGW environment."
4000         ;;
4001     mingw32*|mingw64*)
4002         target_os=mingw32
4003         LIBTARGET=i386
4004         if enabled x86_64; then
4005             LIBTARGET="i386:x86-64"
4006         fi
4007         if enabled shared; then
4008             # Cannot build both shared and static libs when using dllexport.
4009             disable static
4010         fi
4011         check_ldflags -Wl,--nxcompat
4012         check_ldflags -Wl,--dynamicbase
4013         shlibdir_default="$bindir_default"
4014         SLIBPREF=""
4015         SLIBSUF=".dll"
4016         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4017         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4018         SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4019         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4020         SLIB_INSTALL_LINKS=
4021         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4022         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4023         SLIB_CREATE_DEF_CMD='ARCH="$(ARCH)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4024         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-auto-image-base $$(@:$(SLIBSUF)=.def)'
4025         enabled x86_64 && objformat="win64" || objformat="win32"
4026         dlltool="${cross_prefix}dlltool"
4027         ranlib=:
4028         enable dos_paths
4029         ;;
4030     win32|win64)
4031         disable symver
4032         if enabled shared; then
4033             # Link to the import library instead of the normal static library
4034             # for shared libs.
4035             LD_LIB='%.lib'
4036             # Cannot build both shared and static libs with MSVC or icl.
4037             disable static
4038         fi
4039         shlibdir_default="$bindir_default"
4040         SLIBPREF=""
4041         SLIBSUF=".dll"
4042         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4043         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4044         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4045         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4046         SLIB_INSTALL_LINKS=
4047         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4048         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4049         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4050         enabled x86_64 && objformat="win64" || objformat="win32"
4051         ranlib=:
4052         enable dos_paths
4053         ;;
4054     cygwin*)
4055         target_os=cygwin
4056         shlibdir_default="$bindir_default"
4057         SLIBPREF="cyg"
4058         SLIBSUF=".dll"
4059         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4060         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4061         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4062         SLIB_INSTALL_LINKS=
4063         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4064         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4065         enabled x86_64 && objformat="win64" || objformat="win32"
4066         enable dos_paths
4067         ;;
4068     *-dos|freedos|opendos)
4069         network_extralibs="-lsocket"
4070         objformat="coff"
4071         enable dos_paths
4072         add_cppflags -U__STRICT_ANSI__
4073         ;;
4074     linux)
4075         enable dv1394
4076         enable section_data_rel_ro
4077         ;;
4078     irix*)
4079         target_os=irix
4080         ranlib="echo ignoring ranlib"
4081         ;;
4082     os/2*)
4083         ln_s="cp -f"
4084         objformat="aout"
4085         add_cppflags -D_GNU_SOURCE
4086         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4087         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4088         LIBSUF="_s.a"
4089         SLIBPREF=""
4090         SLIBSUF=".dll"
4091         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4092         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4093         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4094             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4095             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4096             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4097             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4098         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4099             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4100         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4101         enable dos_paths
4102         ;;
4103     gnu/kfreebsd)
4104         add_cppflags -D_BSD_SOURCE
4105         ;;
4106     gnu)
4107         ;;
4108     qnx)
4109         add_cppflags -D_QNX_SOURCE
4110         network_extralibs="-lsocket"
4111         ;;
4112     symbian)
4113         SLIBSUF=".dll"
4114         enable dos_paths
4115         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4116         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4117         add_ldflags -Wl,--target1-abs,--no-undefined \
4118                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4119                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4120         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4121                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4122                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4123         ;;
4124     minix)
4125         ;;
4126     none)
4127         ;;
4128     *)
4129         die "Unknown OS '$target_os'."
4130         ;;
4131 esac
4132
4133 # determine libc flavour
4134
4135 probe_libc(){
4136     pfx=$1
4137     pfx_no_=${pfx%_}
4138     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4139     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4140         eval ${pfx}libc_type=uclibc
4141         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4142     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4143         eval ${pfx}libc_type=glibc
4144         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4145     # MinGW headers can be installed on Cygwin, so check for newlib first.
4146     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4147         eval ${pfx}libc_type=newlib
4148         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4149     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4150     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4151         eval ${pfx}libc_type=mingw64
4152         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4153         eval test \$${pfx_no_}cc_type = "gcc" &&
4154             add_${pfx}cppflags -D__printf__=__gnu_printf__
4155     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4156          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4157         eval ${pfx}libc_type=mingw32
4158         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4159             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4160             die "ERROR: MinGW32 runtime version must be >= 3.15."
4161         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4162         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4163             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4164         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4165             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4166         eval test \$${pfx_no_}cc_type = "gcc" &&
4167             add_${pfx}cppflags -D__printf__=__gnu_printf__
4168     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4169         eval ${pfx}libc_type=msvcrt
4170         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4171             if [ "$pfx" = host_ ]; then
4172                 add_host_cppflags -Dsnprintf=_snprintf
4173             else
4174                 add_compat strtod.o strtod=avpriv_strtod
4175                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4176                                              _snprintf=avpriv_snprintf  \
4177                                              vsnprintf=avpriv_vsnprintf
4178             fi
4179         fi
4180         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4181         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4182         # 0x601 by default unless something else is set by the user.
4183         # This can easily lead to us detecting functions only present
4184         # in such new versions and producing binaries requiring windows 7.0.
4185         # Therefore explicitly set the default to XP unless the user has
4186         # set something else on the command line.
4187         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4188         # family. For these cases, configure is free to use any functions
4189         # found in the SDK headers by default. (Alternatively, we could force
4190         # _WIN32_WINNT to 0x0602 in that case.)
4191         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4192             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4193 #ifdef WINAPI_FAMILY
4194 #include <winapifamily.h>
4195 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4196 #error not desktop
4197 #endif
4198 #endif
4199 EOF
4200         if [ "$pfx" = "" ]; then
4201             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4202         fi
4203     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4204         eval ${pfx}libc_type=klibc
4205     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4206         eval ${pfx}libc_type=bionic
4207     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4208         eval ${pfx}libc_type=solaris
4209         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4210     else
4211         eval ${pfx}libc_type=default
4212         add_${pfx}cppflags -D_DEFAULT_SOURCE
4213     fi
4214 }
4215
4216 probe_libc
4217 test -n "$libc_type" && enable libc_$libc_type
4218 probe_libc host_
4219 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4220
4221 # hacks for compiler/libc/os combinations
4222
4223 case $libc_type in
4224     bionic)
4225         add_compat strtod.o strtod=avpriv_strtod
4226         ;;
4227     glibc)
4228         if enabled tms470; then
4229             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4230             add_cppflags -D__USER_LABEL_PREFIX__=
4231             add_cppflags -D__builtin_memset=memset
4232             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4233             add_cflags   -pds=48    # incompatible redefinition of macro
4234         fi
4235         ;;
4236 esac
4237
4238 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4239     add_cppflags '-I\$(SRC_PATH)/compat/float'
4240
4241 esc(){
4242     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4243 }
4244
4245 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4246
4247 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4248
4249 set_default $PATHS_LIST
4250 set_default nm
4251
4252 # we need to build at least one lib type
4253 if ! enabled_any static shared; then
4254     cat <<EOF
4255 At least one library type must be built.
4256 Specify --enable-static to build the static libraries or --enable-shared to
4257 build the shared libraries as well. To only build the shared libraries specify
4258 --disable-static in addition to --enable-shared.
4259 EOF
4260     exit 1
4261 fi
4262
4263 disabled optimizations || check_cflags -fomit-frame-pointer
4264
4265 enable_weak_pic() {
4266     disabled pic && return
4267     enable pic
4268     add_cppflags -DPIC
4269     case "$target_os" in
4270     mingw*|cygwin*)
4271         ;;
4272     *)
4273         add_cflags -fPIC
4274         ;;
4275     esac
4276     add_asflags  -fPIC
4277 }
4278
4279 enabled pic && enable_weak_pic
4280
4281 check_cc <<EOF || die "Symbol mangling check failed."
4282 int ff_extern;
4283 EOF
4284 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4285 extern_prefix=${sym%%ff_extern*}
4286
4287 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4288
4289 _restrict=
4290 for restrict_keyword in restrict __restrict__ __restrict; do
4291     check_cc <<EOF && _restrict=$restrict_keyword && break
4292 void foo(char * $restrict_keyword p);
4293 EOF
4294 done
4295
4296 check_cc <<EOF && enable pragma_deprecated
4297 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4298 EOF
4299
4300 check_cc <<EOF && enable attribute_packed
4301 struct { int x; } __attribute__((packed)) x;
4302 EOF
4303
4304 check_cc <<EOF && enable attribute_may_alias
4305 union { int x; } __attribute__((may_alias)) x;
4306 EOF
4307
4308 check_cc <<EOF || die "endian test failed"
4309 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4310 EOF
4311 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4312
4313 check_gas() {
4314     log "check_gas using '$as' as AS"
4315     # :vararg is used on aarch64, arm and ppc altivec
4316     check_as <<EOF || return 1
4317 .macro m n, y:vararg=0
4318 \n: .int \y
4319 .endm
4320 m x
4321 EOF
4322     # .altmacro is only used in arm asm
4323     ! enabled arm || check_as <<EOF || return 1
4324 .altmacro
4325 EOF
4326     enable gnu_as
4327     return 0
4328 }
4329
4330 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4331     nogas=:
4332     enabled_any arm aarch64 && nogas=die
4333     enabled_all ppc altivec && nogas=warn
4334     as_noop=-v
4335
4336     case $as_type in
4337         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4338         gcc)  gaspp_as_type=gas ;;
4339         *)    gaspp_as_type=$as_type ;;
4340     esac
4341
4342     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4343
4344     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4345         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4346
4347     if ! check_gas ; then
4348         as=${gas:=$as}
4349         check_gas || \
4350             $nogas "GNU assembler not found, install/update gas-preprocessor"
4351     fi
4352
4353     check_as <<EOF && enable as_func
4354 .func test
4355 .endfunc
4356 EOF
4357 fi
4358
4359 check_inline_asm inline_asm_labels '"1:\n"'
4360
4361 if enabled aarch64; then
4362     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4363     # internal assembler in clang 3.3 does not support this instruction
4364     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4365     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4366
4367     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4368
4369 elif enabled alpha; then
4370
4371     check_cflags -mieee
4372
4373 elif enabled arm; then
4374
4375     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4376     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4377     enabled thumb && check_cflags -mthumb || check_cflags -marm
4378
4379     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4380         enable vfp_args
4381     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4382         enable vfp_args
4383     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4384         case "${cross_prefix:-$cc}" in
4385             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4386             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4387 __asm__ (".eabi_attribute 28, 1");
4388 int main(void) { return 0; }
4389 EOF
4390         esac
4391         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4392     fi
4393
4394     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4395     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4396     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4397     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4398     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4399     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4400
4401     [ $target_os = linux ] || [ $target_os = android ] ||
4402         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4403             $ARCH_EXT_LIST_ARM
4404
4405     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4406
4407     check_as <<EOF && enable as_arch_directive
4408 .arch armv7-a
4409 EOF
4410     check_as <<EOF && enable as_fpu_directive
4411 .fpu neon
4412 EOF
4413
4414     # llvm's integrated assembler supports .object_arch from llvm 3.5
4415     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4416         check_as <<EOF && enable as_object_arch
4417 .object_arch armv4
4418 EOF
4419
4420     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4421
4422 elif enabled mips; then
4423
4424     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4425
4426     # make sure that only an instruction set is enabled
4427     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4428
4429     if enabled mips64; then
4430         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4431             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4432                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4433     else
4434         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4435             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4436                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4437     fi
4438
4439 elif enabled parisc; then
4440
4441     if enabled gcc; then
4442         case $($cc -dumpversion) in
4443             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4444         esac
4445     fi
4446
4447 elif enabled ppc; then
4448
4449     enable local_aligned_8 local_aligned_16 local_aligned_32
4450
4451     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4452     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4453     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4454     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4455
4456     if enabled altivec; then
4457         check_cflags -maltivec -mabi=altivec
4458
4459         # check if our compiler supports Motorola AltiVec C API
4460         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4461                                  vector signed int v2 = (vector signed int) { 1 };
4462                                  v1 = vec_add(v1, v2);" ||
4463             disable altivec
4464
4465         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4466     fi
4467
4468     if enabled vsx; then
4469         check_cflags -mvsx &&
4470         check_code cc altivec.h "int v[4] = { 0 };
4471                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4472             disable vsx
4473     fi
4474
4475     if enabled power8; then
4476         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4477     fi
4478
4479 elif enabled x86; then
4480
4481     check_builtin rdtsc    intrin.h   "__rdtsc()"
4482     check_builtin mm_empty mmintrin.h "_mm_empty()"
4483
4484     enable local_aligned_8 local_aligned_16 local_aligned_32
4485
4486     # check whether EBP is available on x86
4487     # As 'i' is stored on the stack, this program will crash
4488     # if the base pointer is used to access it because the
4489     # base pointer is cleared in the inline assembly code.
4490     check_exec_crash <<EOF && enable ebp_available
4491 volatile int i=0;
4492 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4493 return i;
4494 EOF
4495
4496     # check whether EBX is available on x86
4497     check_inline_asm ebx_available '""::"b"(0)' &&
4498         check_inline_asm ebx_available '"":::"%ebx"'
4499
4500     # check whether xmm clobbers are supported
4501     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4502
4503     # check whether binutils is new enough to compile SSSE3/MMXEXT
4504     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4505     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4506
4507     probe_x86asm(){
4508         x86asmexe_probe=$1
4509         if check_cmd $x86asmexe_probe -v; then
4510             x86asmexe=$x86asmexe_probe
4511             x86asm_type=nasm
4512             x86asm_debug="-g -F dwarf"
4513             X86ASMDEP=
4514             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4515         elif check_cmd $x86asmexe_probe --version; then
4516             x86asmexe=$x86asmexe_probe
4517             x86asm_type=yasm
4518             x86asm_debug="-g dwarf2"
4519             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4520             X86ASM_DEPFLAGS=
4521         fi
4522         check_x86asm "movbe ecx, [5]" && enable x86asm
4523     }
4524
4525     if ! disabled_any asm mmx x86asm; then
4526         disable x86asm
4527         for program in $x86asmexe nasm yasm; do
4528             probe_x86asm $program && break
4529         done
4530         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4531         X86ASMFLAGS="-f $objformat"
4532         enabled pic               && append X86ASMFLAGS "-DPIC"
4533         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4534         case "$objformat" in
4535             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4536         esac
4537
4538         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4539         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4540         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4541         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4542         check_x86asm "CPU amdnop"                      || disable cpunop
4543     fi
4544
4545     case "$cpu" in
4546         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4547             disable fast_clz
4548         ;;
4549     esac
4550
4551 fi
4552
4553 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4554
4555 check_ldflags -Wl,--as-needed
4556
4557 if ! disabled network; then
4558     check_func getaddrinfo $network_extralibs
4559     check_func inet_aton $network_extralibs
4560
4561     check_type netdb.h "struct addrinfo"
4562     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4563     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4564     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4565     check_type poll.h "struct pollfd"
4566     check_type netinet/sctp.h "struct sctp_event_subscribe"
4567     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4568     check_type netinet/in.h "struct sockaddr_in6"
4569     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4570     check_type "sys/types.h sys/socket.h" socklen_t
4571
4572     # Prefer arpa/inet.h over winsock2
4573     if check_header arpa/inet.h ; then
4574         check_func closesocket
4575     elif check_header winsock2.h ; then
4576         check_func_headers winsock2.h closesocket -lws2 &&
4577             network_extralibs="-lws2" ||
4578         { check_func_headers winsock2.h closesocket -lws2_32 &&
4579             network_extralibs="-lws2_32"; } || disable winsock2_h network
4580         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4581
4582         check_type ws2tcpip.h socklen_t
4583         check_type ws2tcpip.h "struct addrinfo"
4584         check_type ws2tcpip.h "struct group_source_req"
4585         check_type ws2tcpip.h "struct ip_mreq_source"
4586         check_type ws2tcpip.h "struct ipv6_mreq"
4587         check_type winsock2.h "struct pollfd"
4588         check_struct winsock2.h "struct sockaddr" sa_len
4589         check_type ws2tcpip.h "struct sockaddr_in6"
4590         check_type ws2tcpip.h "struct sockaddr_storage"
4591     else
4592         disable network
4593     fi
4594 fi
4595
4596 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4597 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4598 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4599 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4600
4601 case "$custom_allocator" in
4602     jemalloc)
4603         # jemalloc by default does not use a prefix
4604         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4605     ;;
4606     tcmalloc)
4607         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4608         malloc_prefix=tc_
4609     ;;
4610 esac
4611
4612 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4613 check_func  ${malloc_prefix}memalign            && enable memalign
4614 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4615
4616 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4617     { check_lib clock_gettime time.h clock_gettime ||
4618       check_lib clock_gettime time.h clock_gettime -lrt; }
4619
4620 check_func  fcntl
4621 check_func  fork
4622 check_func  gethrtime
4623 check_func  getopt
4624 check_func  getrusage
4625 check_func  gettimeofday
4626 check_func  gmtime_r
4627 check_func  isatty
4628 check_func  localtime_r
4629 check_func  mach_absolute_time
4630 check_func  mkstemp
4631 check_func  mmap
4632 check_func  mprotect
4633 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4634 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4635 check_func  sched_getaffinity
4636 check_func  setrlimit
4637 check_func  strerror_r
4638 check_func  sysconf
4639 check_func  sysctl
4640 check_func  usleep
4641
4642 check_func_headers io.h setmode
4643 check_func_headers stdlib.h getenv
4644
4645 check_func_headers windows.h GetProcessAffinityMask
4646 check_func_headers windows.h GetProcessTimes
4647 check_func_headers windows.h GetSystemTimeAsFileTime
4648 check_func_headers windows.h LoadLibrary
4649 check_func_headers windows.h MapViewOfFile
4650 check_func_headers windows.h SetConsoleTextAttribute
4651 check_func_headers windows.h Sleep
4652 check_func_headers windows.h VirtualAlloc
4653 check_struct windows.h "CONDITION_VARIABLE" Ptr
4654
4655 check_header direct.h
4656 check_header dxgidebug.h
4657 check_header dxva.h
4658 check_header dxva2api.h
4659 check_header io.h
4660 check_header mach/mach_time.h
4661 check_header malloc.h
4662 check_header poll.h
4663 check_header sys/param.h
4664 check_header sys/resource.h
4665 check_header sys/select.h
4666 check_header sys/time.h
4667 check_header sys/un.h
4668 check_header unistd.h
4669 check_header valgrind/valgrind.h
4670 check_header VideoDecodeAcceleration/VDADecoder.h
4671 check_header windows.h
4672
4673 # it seems there are versions of clang in some distros that try to use the
4674 # gcc headers, which explodes for stdatomic
4675 # so we also check that atomics actually work here
4676 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4677
4678 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4679 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4680 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4681 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4682
4683 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4684
4685 check_type "cuviddec.h" "CUVIDH264PICPARAMS"
4686 check_type "cuviddec.h" "CUVIDHEVCPICPARAMS"
4687 check_struct "cuviddec.h" "CUVIDDECODECREATEINFO" bitDepthMinus8
4688
4689 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4690 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4691 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4692
4693 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4694 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4695 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4696 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4697 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4698 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4699 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4700 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4701 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4702
4703 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4704
4705 if ! disabled w32threads && ! enabled pthreads; then
4706     check_lib w32threads "windows.h process.h" _beginthreadex
4707 fi
4708
4709 # check for some common methods of building with pthread support
4710 # do this before the optional library checks as some of them require pthreads
4711 if ! disabled pthreads && ! enabled w32threads; then
4712     if check_lib pthreads pthread.h pthread_join -pthread; then
4713         add_cflags -pthread
4714     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4715         add_cflags -pthreads
4716     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4717         :
4718     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4719         :
4720     elif check_func pthread_join; then
4721         enable pthreads
4722     fi
4723 fi
4724
4725 enabled pthreads &&
4726     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4727
4728 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4729 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4730
4731 # On some systems dynamic loading requires no extra linker flags
4732 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4733
4734 check_lib libm math.h sin -lm
4735
4736 atan2f_args=2
4737 ldexpf_args=2
4738 powf_args=2
4739
4740 for func in $MATH_FUNCS; do
4741     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4742 done
4743
4744 # these are off by default, so fail if requested and not available
4745 enabled avisynth          && require_header avisynth/avisynth_c.h
4746 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4747 enabled cuda              && require cuda cuda.h cuInit -lcuda
4748 enabled cuvid             && require cuvid cuviddec.h cuvidCreateDecoder -lnvcuvid
4749 enabled frei0r            && require_header frei0r.h
4750 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4751 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4752 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4753 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4754 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4755 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4756 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4757 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4758 enabled libgsm            && require libgsm gsm._h gsm_create -lgsm
4759 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4760 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4761 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4762 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4763 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4764 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4765 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4766 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4767 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4768 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4769 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4770                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4771 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4772 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4773 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4774 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4775 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4776 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4777 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4778 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4779 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4780 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4781 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4782 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4783                              { enabled libvpx_vp8_decoder &&
4784                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4785                                enabled libvpx_vp8_encoder &&
4786                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4787                                enabled libvpx_vp9_decoder &&
4788                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4789                                enabled libvpx_vp9_encoder &&
4790                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4791                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4792                                    die "libvpx enabled but no supported decoders/encoders found"
4793                              }
4794 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4795 enabled libwebp           && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4796 enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4797                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
4798                              { check_cpp_condition x264.h "X264_MPEG2" &&
4799                                enable libx262; }
4800 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
4801                              require_cpp_condition x265.h "X265_BUILD >= 57"
4802 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4803 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4804 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4805                                { ! enabled cross_compile &&
4806                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4807                                  add_ldflags -L/opt/vc/lib/ &&
4808                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4809                                die "ERROR: mmal not found" &&
4810                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4811 enabled omx               && require_header OMX_Core.h
4812 enabled omx_rpi           && { check_header OMX_Core.h ||
4813                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4814                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
4815 enabled openssl           && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4816        &nbs