libavcodec/mjpeg_qsv: Add QSV MJPEG encoder
[libav.git] / configure
1 #!/bin/sh
2 #
3 # Libav configure script
4 #
5 # Copyright (c) 2000-2002 Fabrice Bellard
6 # Copyright (c) 2005-2008 Diego Biurrun
7 # Copyright (c) 2005-2008 Mans Rullgard
8 #
9
10 # Prevent locale nonsense from breaking basic text processing.
11 LC_ALL=C
12 export LC_ALL
13
14 # make sure we are running under a compatible shell
15 # try to make this part work with most shells
16
17 try_exec(){
18     echo "Trying shell $1"
19     type "$1" > /dev/null 2>&1 && exec "$@"
20 }
21
22 unset foo
23 (: ${foo%%bar}) 2> /dev/null
24 E1="$?"
25
26 (: ${foo?}) 2> /dev/null
27 E2="$?"
28
29 if test "$E1" != 0 || test "$E2" = 0; then
30     echo "Broken shell detected.  Trying alternatives."
31     export FF_CONF_EXEC
32     if test "0$FF_CONF_EXEC" -lt 1; then
33         FF_CONF_EXEC=1
34         try_exec bash "$0" "$@"
35     fi
36     if test "0$FF_CONF_EXEC" -lt 2; then
37         FF_CONF_EXEC=2
38         try_exec ksh "$0" "$@"
39     fi
40     if test "0$FF_CONF_EXEC" -lt 3; then
41         FF_CONF_EXEC=3
42         try_exec /usr/xpg4/bin/sh "$0" "$@"
43     fi
44     echo "No compatible shell script interpreter found."
45     echo "This configure script requires a POSIX-compatible shell"
46     echo "such as bash or ksh."
47     echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
48     echo "Instead, install a working POSIX-compatible shell."
49     echo "Disabling this configure test will create a broken Libav."
50     if test "$BASH_VERSION" = '2.04.0(1)-release'; then
51         echo "This bash version ($BASH_VERSION) is broken on your platform."
52         echo "Upgrade to a later version if available."
53     fi
54     exit 1
55 fi
56
57 test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
58
59 show_help(){
60     cat <<EOF
61 Usage: configure [options]
62 Options: [defaults in brackets after descriptions]
63
64 Help options:
65   --help                   print this message
66   --quiet                  Suppress showing informative output
67   --list-decoders          show all available decoders
68   --list-encoders          show all available encoders
69   --list-hwaccels          show all available hardware accelerators
70   --list-demuxers          show all available demuxers
71   --list-muxers            show all available muxers
72   --list-parsers           show all available parsers
73   --list-protocols         show all available protocols
74   --list-bsfs              show all available bitstream filters
75   --list-indevs            show all available input devices
76   --list-outdevs           show all available output devices
77   --list-filters           show all available filters
78
79 Standard options:
80   --logfile=FILE           log tests and output to FILE [avbuild/config.log]
81   --disable-logging        do not log configure debug information
82   --prefix=PREFIX          install in PREFIX [$prefix_default]
83   --bindir=DIR             install binaries in DIR [PREFIX/bin]
84   --datadir=DIR            install data files in DIR [PREFIX/share/avconv]
85   --docdir=DIR             install documentation in DIR [PREFIX/share/doc/libav]
86   --libdir=DIR             install libs in DIR [PREFIX/lib]
87   --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
88   --incdir=DIR             install includes in DIR [PREFIX/include]
89   --mandir=DIR             install man page in DIR [PREFIX/share/man]
90   --enable-rpath           use rpath when linking programs (USE WITH CARE)
91
92 Licensing options:
93   --enable-gpl             allow use of GPL code, the resulting libs
94                            and binaries will be under GPL [no]
95   --enable-version3        upgrade (L)GPL to version 3 [no]
96   --enable-nonfree         allow use of nonfree code, the resulting libs
97                            and binaries will be unredistributable [no]
98
99 Configuration options:
100   --disable-static         do not build static libraries [no]
101   --enable-shared          build shared libraries [no]
102   --enable-small           optimize for size instead of speed
103   --enable-runtime-cpudetect detect CPU capabilities at runtime (bigger binary)
104   --enable-gray            enable full grayscale support (slower color)
105   --disable-swscale-alpha  disable alpha channel support in swscale
106   --disable-all            disable building components, libraries and programs
107
108 Program options:
109   --disable-programs       do not build command line programs
110   --disable-avconv         disable avconv build
111   --disable-avplay         disable avplay build
112   --disable-avprobe        disable avprobe build
113   --disable-avserver       deprecated, does nothing
114
115 Component options:
116   --disable-doc            do not build documentation
117   --disable-pod2man        do not build manual pages
118   --disable-texi2html      do not build HTML documentation
119   --disable-avdevice       disable libavdevice build
120   --disable-avcodec        disable libavcodec build
121   --disable-avformat       disable libavformat build
122   --disable-avutil         disable libavutil build
123   --disable-swscale        disable libswscale build
124   --disable-avfilter       disable video filter support [no]
125   --disable-avresample     disable libavresample build [no]
126   --disable-pthreads       disable pthreads [auto]
127   --disable-w32threads     disable Win32 threads [auto]
128   --disable-network        disable network support [no]
129   --disable-dct            disable DCT code
130   --disable-error-resilience disable error resilience code
131   --disable-lsp            disable LSP code
132   --disable-lzo            disable LZO decoder code
133   --disable-mdct           disable MDCT code
134   --disable-rdft           disable RDFT code
135   --disable-fft            disable FFT code
136   --disable-faan           disable floating point AAN (I)DCT code
137
138 Individual component options:
139   --disable-everything     disable all components listed below
140   --disable-encoder=NAME   disable encoder NAME
141   --enable-encoder=NAME    enable encoder NAME
142   --disable-encoders       disable all encoders
143   --disable-decoder=NAME   disable decoder NAME
144   --enable-decoder=NAME    enable decoder NAME
145   --disable-decoders       disable all decoders
146   --disable-hwaccel=NAME   disable hwaccel NAME
147   --enable-hwaccel=NAME    enable hwaccel NAME
148   --disable-hwaccels       disable all hwaccels
149   --disable-muxer=NAME     disable muxer NAME
150   --enable-muxer=NAME      enable muxer NAME
151   --disable-muxers         disable all muxers
152   --disable-demuxer=NAME   disable demuxer NAME
153   --enable-demuxer=NAME    enable demuxer NAME
154   --disable-demuxers       disable all demuxers
155   --enable-parser=NAME     enable parser NAME
156   --disable-parser=NAME    disable parser NAME
157   --disable-parsers        disable all parsers
158   --enable-bsf=NAME        enable bitstream filter NAME
159   --disable-bsf=NAME       disable bitstream filter NAME
160   --disable-bsfs           disable all bitstream filters
161   --enable-protocol=NAME   enable protocol NAME
162   --disable-protocol=NAME  disable protocol NAME
163   --disable-protocols      disable all protocols
164   --enable-indev=NAME      enable input device NAME
165   --disable-indev=NAME     disable input device NAME
166   --disable-indevs         disable input devices
167   --enable-outdev=NAME     enable output device NAME
168   --disable-outdev=NAME    disable output device NAME
169   --disable-outdevs        disable output devices
170   --disable-devices        disable all devices
171   --enable-filter=NAME     enable filter NAME
172   --disable-filter=NAME    disable filter NAME
173   --disable-filters        disable all filters
174
175 External library support:
176
177   Using any of the following switches will allow Libav to link to the
178   corresponding external library. All the components depending on that library
179   will become enabled, if all their other dependencies are met and they are not
180   explicitly disabled. E.g. --enable-libwavpack will enable linking to
181   libwavpack and allow the libwavpack encoder to be built, unless it is
182   specifically disabled with --disable-encoder=libwavpack.
183
184   Note that only the system libraries are auto-detected. All the other external
185   libraries must be explicitly enabled.
186
187   Also note that the following help text describes the purpose of the libraries
188   themselves, not all their features will necessarily be usable by Libav.
189
190   --enable-avisynth          video frameserver
191   --enable-avxsynth          Linux version of AviSynth
192   --enable-bzlib             bzip2 compression [autodetect]
193   --enable-frei0r            video filtering plugins
194   --enable-gnutls            crypto
195   --enable-libbs2b           Bauer stereophonic-to-binaural DSP
196   --enable-libcdio           audio CD input
197   --enable-libdc1394         IEEE 1394/Firewire camera input
198   --enable-libdcadec         DCA audio decoding
199   --enable-libfaac           AAC audio encoding
200   --enable-libfdk-aac        AAC audio encoding/decoding
201   --enable-libfontconfig     font configuration and management
202   --enable-libfreetype       font rendering
203   --enable-libgsm            GSM audio encoding/decoding
204   --enable-libhdcd           HDCD decoding filter
205   --enable-libilbc           ILBC audio encoding/decoding
206   --enable-libjack           JACK audio sound server
207   --enable-libkvazaar        HEVC video encoding
208   --enable-libmp3lame        MP3 audio encoding
209   --enable-libopencore-amrnb AMR-NB audio encoding/decoding
210   --enable-libopencore-amrwb AMR-WB audio decoding
211   --enable-libopencv         computer vision
212   --enable-libopenh264       H.264 video encoding/decoding
213   --enable-libopenjpeg       JPEG 2000 image encoding/decoding
214   --enable-libopus           Opus audio encoding/decoding
215   --enable-libpulse          Pulseaudio sound server
216   --enable-librtmp           RTMP streaming
217   --enable-libschroedinger   Dirac video encoding/decoding
218   --enable-libsnappy         snappy compression
219   --enable-libspeex          Speex audio encoding/decoding
220   --enable-libtheora         Theora video encoding/decoding
221   --enable-libtwolame        MP2 audio encoding
222   --enable-libvo-aacenc      AAC audio encoding
223   --enable-libvo-amrwbenc    AMR-WB audio encoding
224   --enable-libvorbis         Vorbis audio encoding/decoding
225   --enable-libvpx            VP* video encoding/decoding
226   --enable-libwavpack        Wavpack audio encoding/decoding
227   --enable-libwebp           WebP image encoding/decoding
228   --enable-libx264           H.264 video encoding
229   --enable-libx265           HEVC video encoding
230   --enable-libxavs           Chinese AVS video encoding
231   --enable-libxcb            X window system protocol communication
232   --enable-libxcb-shm        X11 shm communication [auto]
233   --enable-libxcb-xfixes     X11 mouse rendering [auto]
234   --enable-libxvid           MPEG-4 ASP video encoding
235   --enable-openssl           crypto
236   --enable-zlib              compression [autodetect]
237
238   The following libraries provide various hardware acceleration features:
239   --enable-cuda    Nvidia CUDA (dynamically linked)
240   --enable-d3d11va Microsoft Direct3D 11 video acceleration [auto]
241   --enable-dxva2   Microsoft DirectX 9 video acceleration [auto]
242   --enable-libmfx  Intel MediaSDK (AKA Quick Sync Video)
243   --enable-libnpp  Nvidia CUDA processing
244   --enable-mmal    Broadcom Multi-Media Abstraction Layer (Raspberry Pi)
245   --enable-nvenc   Nvidia video encoding
246   --enable-omx     OpenMAX IL
247   --enable-omx-rpi OpenMAX IL for Raspberry Pi
248   --enable-vaapi   Video Acceleration API (mainly Unix/Intel)
249   --enable-vda     Apple Video Decode Acceleration [auto]
250   --enable-vdpau   Nvidia Video Decode and Presentation API for Unix [auto]
251
252 Toolchain options:
253   --arch=ARCH              select architecture [$arch]
254   --cpu=CPU                select the minimum required CPU (affects
255                            instruction selection, may crash on older CPUs)
256   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
257   --enable-cross-compile   assume a cross-compiler is used
258   --sysroot=PATH           root of cross-build tree
259   --sysinclude=PATH        location of cross-build system headers
260   --target-os=OS           compiler targets OS [$target_os]
261   --target-exec=CMD        command to run executables on target
262   --target-path=DIR        path to view of build directory on target
263   --target-samples=DIR     path to samples directory on target
264   --toolchain=NAME         set tool defaults according to NAME
265   --nm=NM                  use nm tool
266   --ar=AR                  use archive tool AR [$ar_default]
267   --as=AS                  use assembler AS [$as_default]
268   --cc=CC                  use C compiler CC [$cc_default]
269   --objcc=OCC              use ObjC compiler OCC [$cc_default]
270   --dep-cc=DEPCC           use dependency generator DEPCC [$cc_default]
271   --ld=LD                  use linker LD
272   --x86asmexe=X86ASM       use x86 assembler X86ASM
273   --pkg-config=PKGCONFIG   use pkg-config tool PKGCONFIG [$pkg_config_default]
274   --pkg-config-flags=FLAGS pass additional flags to pkgconf []
275   --host-cc=HOSTCC         use host C compiler HOSTCC
276   --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
277   --host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
278   --host-ld=HOSTLD         use host linker HOSTLD
279   --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
280   --host-libs=HLIBS        use libs HLIBS when linking for host
281   --host-os=OS             compiler host OS [$target_os]
282   --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
283   --extra-objcflags=FLAGS  add FLAGS to OBJCFLAGS [$CFLAGS]
284   --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
285   --extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
286   --extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
287   --extra-libs=ELIBS       add ELIBS [$ELIBS]
288   --extra-version=STRING   version string suffix []
289   --optflags=OPTFLAGS      override optimization-related compiler flags
290   --enable-pic             build position-independent code
291   --enable-thumb           compile for Thumb instruction set
292   --enable-lto             use link-time optimization
293   --env="ENV=override"     override the environment variables
294
295 Advanced options (experts only):
296   --malloc-prefix=PREFIX   prefix malloc and related names with PREFIX
297   --custom-allocator=NAME  use a supported custom allocator
298   --disable-symver         disable symbol versioning
299   --enable-hardcoded-tables use hardcoded tables instead of runtime generation
300   --disable-safe-bitstream-reader
301                            disable buffer boundary checking in bitreaders
302                            (faster, but may crash)
303   --enable-sram            allow use of on-chip SRAM
304
305 Optimization options (experts only):
306   --disable-asm            disable all assembly optimizations
307   --disable-altivec        disable AltiVec optimizations
308   --disable-vsx            disable VSX optimizations
309   --disable-power8         disable POWER8 optimizations
310   --disable-amd3dnow       disable 3DNow! optimizations
311   --disable-amd3dnowext    disable 3DNow! extended optimizations
312   --disable-mmx            disable MMX optimizations
313   --disable-mmxext         disable MMXEXT optimizations
314   --disable-sse            disable SSE optimizations
315   --disable-sse2           disable SSE2 optimizations
316   --disable-sse3           disable SSE3 optimizations
317   --disable-ssse3          disable SSSE3 optimizations
318   --disable-sse4           disable SSE4 optimizations
319   --disable-sse42          disable SSE4.2 optimizations
320   --disable-avx            disable AVX optimizations
321   --disable-xop            disable XOP optimizations
322   --disable-fma3           disable FMA3 optimizations
323   --disable-fma4           disable FMA4 optimizations
324   --disable-avx2           disable AVX2 optimizations
325   --disable-armv5te        disable armv5te optimizations
326   --disable-armv6          disable armv6 optimizations
327   --disable-armv6t2        disable armv6t2 optimizations
328   --disable-vfp            disable VFP optimizations
329   --disable-neon           disable NEON optimizations
330   --disable-inline-asm     disable use of inline assembly
331   --disable-x86asm         disable use of standalone x86 assembly
332
333 Developer options (useful when working on Libav itself):
334   --disable-debug          disable debugging symbols
335   --enable-debug=LEVEL     set the debug level [$debuglevel]
336   --disable-optimizations  disable compiler optimizations
337   --enable-extra-warnings  enable more compiler warnings
338   --samples=PATH           location of test samples for FATE, if not set use
339                            \$LIBAV_SAMPLES at make invocation time.
340   --enable-neon-clobber-test check NEON registers for clobbering (should be
341                            used only for debugging purposes)
342   --enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
343                            should be used only for debugging purposes)
344   --enable-random          randomly enable/disable components
345   --disable-random
346   --enable-random=LIST     randomly enable/disable specific components or
347   --disable-random=LIST    component groups. LIST is a comma-separated list
348                            of NAME[:PROB] entries where NAME is a component
349                            (group) and PROB the probability associated with
350                            NAME (default 0.5).
351   --random-seed=VALUE      seed value for --enable/disable-random
352   --disable-valgrind-backtrace do not print a backtrace under Valgrind
353                            (only applies to --disable-optimizations builds)
354   --ignore-tests=TESTS     comma-separated list (without "fate-" prefix
355                            in the name) of tests whose result is ignored
356
357 NOTE: Object files are built at the place where configure is launched.
358 EOF
359   exit 0
360 }
361
362 quotes='""'
363
364 log(){
365     echo "$@" >> $logfile
366 }
367
368 log_file(){
369     log BEGIN $1
370     i=1
371     while read line; do
372         printf '%5s   %s\n' "${i}" "${line}"
373         i=$(($i+1))
374     done < $1 >> $logfile
375     log END $1
376 }
377
378 echolog(){
379     log "$@"
380     echo "$@"
381 }
382
383 warn(){
384     log "WARNING: $*"
385     WARNINGS="${WARNINGS}WARNING: $*\n"
386 }
387
388 die(){
389     echolog "$@"
390     cat <<EOF
391
392 If you think configure made a mistake, make sure you are using the latest
393 version from Git.  If the latest version fails, report the problem to the
394 libav-tools@libav.org mailing list or IRC #libav on irc.freenode.net.
395 EOF
396     if disabled logging; then
397         cat <<EOF
398 Rerun configure with logging enabled (do not use --disable-logging), and
399 include the log this produces with your report.
400 EOF
401     else
402         cat <<EOF
403 Include the log file "$logfile" produced by configure as this will help
404 solving the problem.
405 EOF
406     fi
407     exit 1
408 }
409
410 # Avoid locale weirdness, besides we really just want to translate ASCII.
411 toupper(){
412     echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
413 }
414
415 tolower(){
416     echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
417 }
418
419 c_escape(){
420     echo "$*" | sed 's/["\\]/\\\0/g'
421 }
422
423 sh_quote(){
424     v=$(echo "$1" | sed "s/'/'\\\\''/g")
425     test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
426     echo "$v"
427 }
428
429 cleanws(){
430     echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
431 }
432
433 filter(){
434     pat=$1
435     shift
436     for v; do
437         eval "case '$v' in $pat) printf '%s ' '$v' ;; esac"
438     done
439 }
440
441 filter_out(){
442     pat=$1
443     shift
444     for v; do
445         eval "case '$v' in $pat) ;; *) printf '%s ' '$v' ;; esac"
446     done
447 }
448
449 map(){
450     m=$1
451     shift
452     for v; do eval $m; done
453 }
454
455 add_suffix(){
456     suffix=$1
457     shift
458     for v; do echo ${v}${suffix}; done
459 }
460
461 set_all(){
462     value=$1
463     shift
464     for var in $*; do
465         eval $var=$value
466     done
467 }
468
469 set_weak(){
470     value=$1
471     shift
472     for var; do
473         eval : \${$var:=$value}
474     done
475 }
476
477 sanitize_var_name(){
478     echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
479 }
480
481 set_sanitized(){
482     var=$1
483     shift
484     eval $(sanitize_var_name "$var")='$*'
485 }
486
487 get_sanitized(){
488     eval echo \$$(sanitize_var_name "$1")
489 }
490
491 pushvar(){
492     for pvar in $*; do
493         eval level=\${${pvar}_level:=0}
494         eval ${pvar}_${level}="\$$pvar"
495         eval ${pvar}_level=$(($level+1))
496     done
497 }
498
499 popvar(){
500     for pvar in $*; do
501         eval level=\${${pvar}_level:-0}
502         test $level = 0 && continue
503         eval level=$(($level-1))
504         eval $pvar="\${${pvar}_${level}}"
505         eval ${pvar}_level=$level
506         eval unset ${pvar}_${level}
507     done
508 }
509
510 enable(){
511     set_all yes $*
512 }
513
514 disable(){
515     set_all no $*
516 }
517
518 enable_weak(){
519     set_weak yes $*
520 }
521
522 disable_weak(){
523     set_weak no $*
524 }
525
526 enable_sanitized(){
527     for var; do
528         enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
529     done
530 }
531
532 disable_sanitized(){
533     for var; do
534         disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
535     done
536 }
537
538 do_enable_deep(){
539     for var; do
540         enabled $var && continue
541         eval sel="\$${var}_select"
542         eval sgs="\$${var}_suggest"
543         pushvar var sgs
544         enable_deep $sel
545         popvar sgs
546         enable_deep_weak $sgs
547         popvar var
548     done
549 }
550
551 enable_deep(){
552     do_enable_deep $*
553     enable $*
554 }
555
556 enable_deep_weak(){
557     for var; do
558         disabled $var && continue
559         pushvar var
560         do_enable_deep $var
561         popvar var
562         enable_weak $var
563     done
564 }
565
566 enabled(){
567     test "${1#!}" = "$1" && op== || op=!=
568     eval test "x\$${1#!}" $op "xyes"
569 }
570
571 disabled(){
572     test "${1#!}" = "$1" && op== || op=!=
573     eval test "x\$${1#!}" $op "xno"
574 }
575
576 enabled_all(){
577     for opt; do
578         enabled $opt || return 1
579     done
580 }
581
582 disabled_all(){
583     for opt; do
584         disabled $opt || return 1
585     done
586 }
587
588 enabled_any(){
589     for opt; do
590         enabled $opt && return 0
591     done
592 }
593
594 disabled_any(){
595     for opt; do
596         disabled $opt && return 0
597     done
598     return 1
599 }
600
601 set_default(){
602     for opt; do
603         eval : \${$opt:=\$${opt}_default}
604     done
605 }
606
607 is_in(){
608     value=$1
609     shift
610     for var in $*; do
611         [ $var = $value ] && return 0
612     done
613     return 1
614 }
615
616 check_deps(){
617     for cfg; do
618         enabled ${cfg}_checking && die "Circular dependency for $cfg."
619         disabled ${cfg}_checking && continue
620         enable ${cfg}_checking
621
622         eval dep_all="\$${cfg}_deps"
623         eval dep_any="\$${cfg}_deps_any"
624         eval dep_con="\$${cfg}_conflict"
625         eval dep_sel="\$${cfg}_select"
626         eval dep_sgs="\$${cfg}_suggest"
627         eval dep_ifa="\$${cfg}_if"
628         eval dep_ifn="\$${cfg}_if_any"
629
630         pushvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
631         check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
632         popvar cfg dep_all dep_any dep_con dep_sel dep_sgs dep_ifa dep_ifn
633
634         [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
635         [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
636         enabled_all  $dep_all || disable $cfg
637         enabled_any  $dep_any || disable $cfg
638         disabled_all $dep_con || disable $cfg
639         disabled_any $dep_sel && disable $cfg
640
641         enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
642
643         for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
644             # filter out library deps, these do not belong in extralibs
645             is_in $dep $LIBRARY_LIST && continue
646             enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
647         done
648
649         disable ${cfg}_checking
650     done
651 }
652
653 print_config(){
654     pfx=$1
655     files=$2
656     shift 2
657     map 'eval echo "$v \${$v:-no}"' "$@" |
658     awk "BEGIN { split(\"$files\", files) }
659         {
660             c = \"$pfx\" toupper(\$1);
661             v = \$2;
662             sub(/yes/, 1, v);
663             sub(/no/,  0, v);
664             for (f in files) {
665                 file = files[f];
666                 if (file ~ /\\.h\$/) {
667                     printf(\"#define %s %d\\n\", c, v) >>file;
668                 } else if (file ~ /\\.asm\$/) {
669                     printf(\"%%define %s %d\\n\", c, v) >>file;
670                 } else if (file ~ /\\.mak\$/) {
671                     n = -v ? \"\" : \"!\";
672                     printf(\"%s%s=yes\\n\", n, c) >>file;
673                 }
674             }
675         }"
676 }
677
678 print_enabled(){
679     suf=$1
680     shift
681     for v; do
682         enabled $v && printf "%s\n" ${v%$suf}
683     done
684 }
685
686 append(){
687     var=$1
688     shift
689     eval "$var=\"\$$var $*\""
690 }
691
692 prepend(){
693     var=$1
694     shift
695     eval "$var=\"$* \$$var\""
696 }
697
698 unique(){
699     var=$1
700     uniq_list=""
701     for tok in $(eval echo \$$var); do
702         uniq_list="$(filter_out $tok $uniq_list) $tok"
703     done
704     eval "$var=\"${uniq_list}\""
705 }
706
707 resolve(){
708     var=$1
709     tmpvar=
710     for entry in $(eval echo \$$var); do
711         tmpvar="$tmpvar $(eval echo \$${entry})"
712     done
713     eval "$var=\"${tmpvar}\""
714 }
715
716 add_cppflags(){
717     append CPPFLAGS "$@"
718 }
719
720 add_cflags(){
721     append CFLAGS $($cflags_filter "$@")
722 }
723
724 add_cflags_headers(){
725     append CFLAGS_HEADERS $($cflags_filter "$@")
726 }
727
728 add_asflags(){
729     append ASFLAGS $($asflags_filter "$@")
730 }
731
732 add_objcflags(){
733     append OBJCFLAGS $($objcflags_filter "$@")
734 }
735
736 add_ldflags(){
737     append LDFLAGS $($ldflags_filter "$@")
738 }
739
740 add_ldexeflags(){
741     append LDEXEFLAGS $($ldflags_filter "$@")
742 }
743
744 add_ldsoflags(){
745     append LDSOFLAGS $($ldflags_filter "$@")
746 }
747
748 add_stripflags(){
749     append STRIPFLAGS "$@"
750 }
751
752 add_extralibs(){
753     prepend extralibs $($ldflags_filter "$@")
754 }
755
756 add_host_cppflags(){
757     append host_cppflags "$@"
758 }
759
760 add_host_cflags(){
761     append host_cflags $($host_cflags_filter "$@")
762 }
763
764 add_host_ldflags(){
765     append host_ldflags $($host_ldflags_filter "$@")
766 }
767
768 add_compat(){
769     append compat_objs $1
770     shift
771     map 'add_cppflags -D$v' "$@"
772 }
773
774 check_cmd(){
775     log "$@"
776     "$@" >> $logfile 2>&1
777 }
778
779 cc_o(){
780     eval printf '%s\\n' $CC_O
781 }
782
783 cc_e(){
784     eval printf '%s\\n' $CC_E
785 }
786
787 check_cc(){
788     log check_cc "$@"
789     cat > $TMPC
790     log_file $TMPC
791     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
792 }
793
794 check_objcc(){
795     log check_objcc "$@"
796     cat > $TMPC
797     log_file $TMPC
798     check_cmd $objcc $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPC
799 }
800
801 check_cpp(){
802     log check_cpp "$@"
803     cat > $TMPC
804     log_file $TMPC
805     check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
806 }
807
808 as_o(){
809     eval printf '%s\\n' $AS_O
810 }
811
812 check_as(){
813     log check_as "$@"
814     cat > $TMPS
815     log_file $TMPS
816     check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
817 }
818
819 check_inline_asm(){
820     log check_inline_asm "$@"
821     name="$1"
822     code="$2"
823     shift 2
824     disable $name
825     check_cc "$@" <<EOF && enable $name
826 void foo(void){ __asm__ volatile($code); }
827 EOF
828 }
829
830 check_insn(){
831     log check_insn "$@"
832     check_inline_asm ${1}_inline "\"$2\""
833     echo "$2" | check_as && enable ${1}_external || disable ${1}_external
834 }
835
836 check_x86asm(){
837     log check_x86asm "$@"
838     echo "$1" > $TMPS
839     log_file $TMPS
840     shift 1
841     check_cmd $x86asmexe $X86ASMFLAGS "$@" -o $TMPO $TMPS
842 }
843
844 ld_o(){
845     eval printf '%s\\n' $LD_O
846 }
847
848 check_ld(){
849     log check_ld "$@"
850     flags=$(filter_out '-l*' "$@")
851     libs=$(filter '-l*' "$@")
852     check_cc $($cflags_filter $flags) || return
853     flags=$($ldflags_filter $flags)
854     libs=$($ldflags_filter $libs)
855     check_cmd $ld $LDFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
856 }
857
858 print_include(){
859     hdr=$1
860     test "${hdr%.h}" = "${hdr}" &&
861         echo "#include $hdr"    ||
862         echo "#include <$hdr>"
863 }
864
865 check_code(){
866     log check_code "$@"
867     check=$1
868     headers=$2
869     code=$3
870     shift 3
871     {
872         for hdr in $headers; do
873             print_include $hdr
874         done
875         echo "int main(void) { $code; return 0; }"
876     } | check_$check "$@"
877 }
878
879 check_cppflags(){
880     log check_cppflags "$@"
881     check_cpp "$@" <<EOF && append CPPFLAGS "$@"
882 #include <stdlib.h>;
883 EOF
884 }
885
886 test_cflags(){
887     log test_cflags "$@"
888     set -- $($cflags_filter "$@")
889     check_cc "$@" <<EOF
890 int x;
891 EOF
892 }
893
894 check_cflags(){
895     log check_cflags "$@"
896     test_cflags "$@" && add_cflags "$@"
897 }
898
899 test_objcflags(){
900     log test_objcflags "$@"
901     set -- $($objcflags_filter "$@")
902     check_objcc "$@" <<EOF
903 int x;
904 EOF
905 }
906
907 check_objcflags(){
908     log check_objcflags "$@"
909     test_objcflags "$@" && add_objcflags "$@"
910 }
911
912 test_ldflags(){
913     log test_ldflags "$@"
914     check_ld "$@" <<EOF
915 int main(void){ return 0; }
916 EOF
917 }
918
919 check_ldflags(){
920     log check_ldflags "$@"
921     test_ldflags "$@" && add_ldflags "$@"
922 }
923
924 test_stripflags(){
925     log test_stripflags "$@"
926     # call check_cc to get a fresh TMPO
927     check_cc <<EOF
928 int main(void) { return 0; }
929 EOF
930     check_cmd $strip $STRIPFLAGS "$@" $TMPO
931 }
932
933 check_stripflags(){
934     log check_stripflags "$@"
935     test_stripflags "$@" && add_stripflags "$@"
936 }
937
938 check_header(){
939     log check_header "$@"
940     header=$1
941     shift
942     disable_sanitized $header
943     check_cpp "$@" <<EOF && enable_sanitized $header
944 #include <$header>
945 int x;
946 EOF
947 }
948
949 check_func(){
950     log check_func "$@"
951     func=$1
952     shift
953     disable $func
954     check_ld "$@" <<EOF && enable $func
955 extern int $func();
956 int main(void){ $func(); }
957 EOF
958 }
959
960 check_mathfunc(){
961     log check_mathfunc "$@"
962     func=$1
963     narg=$2
964     shift 2
965     test $narg = 2 && args="f, g" || args="f"
966     disable $func
967     check_ld "$@" <<EOF && enable $func
968 #include <math.h>
969 float foo(float f, float g) { return $func($args); }
970 int main(void){ return 0; }
971 EOF
972 }
973
974 check_func_headers(){
975     log check_func_headers "$@"
976     headers=$1
977     funcs=$2
978     shift 2
979     {
980         for hdr in $headers; do
981             print_include $hdr
982         done
983         for func in $funcs; do
984             echo "long check_$func(void) { return (long) $func; }"
985         done
986         echo "int main(void) { return 0; }"
987     } | check_ld "$@" && enable $funcs && enable_sanitized $headers
988 }
989
990 check_cpp_condition(){
991     log check_cpp_condition "$@"
992     header=$1
993     condition=$2
994     shift 2
995     check_cpp "$@" <<EOF
996 #include <$header>
997 #if !($condition)
998 #error "unsatisfied condition: $condition"
999 #endif
1000 EOF
1001 }
1002
1003 test_cflags_cpp(){
1004     log test_cflags_cpp "$@"
1005     flags=$1
1006     condition=$2
1007     shift 2
1008     set -- $($cflags_filter "$flags")
1009     check_cpp "$@" <<EOF
1010 #if !($condition)
1011 #error "unsatisfied condition: $condition"
1012 #endif
1013 EOF
1014 }
1015
1016 check_lib(){
1017     log check_lib "$@"
1018     name="$1"
1019     headers="$2"
1020     funcs="$3"
1021     shift 3
1022     disable $name
1023     check_func_headers "$headers" "$funcs" "$@" &&
1024         enable $name && eval ${name}_extralibs="\$@"
1025 }
1026
1027 check_pkg_config(){
1028     log check_pkg_config "$@"
1029     name="$1"
1030     pkg_version="$2"
1031     pkg="${2%% *}"
1032     headers="$3"
1033     funcs="$4"
1034     shift 4
1035     disable $name
1036     check_cmd $pkg_config --exists --print-errors $pkg_version || return
1037     pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
1038     pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
1039     check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
1040         enable $name &&
1041         add_cflags    "$pkg_cflags" &&
1042         eval $(sanitize_var_name ${name}_extralibs)="\$pkg_libs"
1043 }
1044
1045 check_exec(){
1046     check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
1047 }
1048
1049 check_exec_crash(){
1050     log check_exec_crash "$@"
1051     code=$(cat)
1052
1053     # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
1054     # are safe but may not be available everywhere.  Thus we use
1055     # raise(SIGTERM) instead.  The check is run in a subshell so we
1056     # can redirect the "Terminated" message from the shell.  SIGBUS
1057     # is not defined by standard C so it is used conditionally.
1058
1059     (check_exec "$@") >> $logfile 2>&1 <<EOF
1060 #include <signal.h>
1061 static void sighandler(int sig){
1062     raise(SIGTERM);
1063 }
1064 int foo(void){
1065     $code
1066 }
1067 int (*func_ptr)(void) = foo;
1068 int main(void){
1069     signal(SIGILL, sighandler);
1070     signal(SIGFPE, sighandler);
1071     signal(SIGSEGV, sighandler);
1072 #ifdef SIGBUS
1073     signal(SIGBUS, sighandler);
1074 #endif
1075     return func_ptr();
1076 }
1077 EOF
1078 }
1079
1080 check_type(){
1081     log check_type "$@"
1082     headers=$1
1083     type=$2
1084     shift 2
1085     disable_sanitized "$type"
1086     check_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
1087 }
1088
1089 check_struct(){
1090     log check_struct "$@"
1091     headers=$1
1092     struct=$2
1093     member=$3
1094     shift 3
1095     disable_sanitized "${struct}_${member}"
1096     check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
1097         enable_sanitized "${struct}_${member}"
1098 }
1099
1100 check_builtin(){
1101     log check_builtin "$@"
1102     name=$1
1103     headers=$2
1104     builtin=$3
1105     shift 3
1106     disable "$name"
1107     check_code ld "$headers" "$builtin" "$@" && enable "$name"
1108 }
1109
1110 check_compile_assert(){
1111     log check_compile_assert "$@"
1112     name=$1
1113     headers=$2
1114     condition=$3
1115     shift 3
1116     disable "$name"
1117     check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
1118 }
1119
1120 require(){
1121     log require "$@"
1122     name_version="$1"
1123     name="${1%% *}"
1124     headers="$2"
1125     func="$3"
1126     shift 3
1127     check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
1128 }
1129
1130 require_header(){
1131     log require "$@"
1132     header="$1"
1133     shift
1134     check_header "$header" "$@" || die "ERROR: $header not found"
1135 }
1136
1137 require_cpp_condition(){
1138     log require "$@"
1139     header="$1"
1140     condition="$2"
1141     shift 2
1142     check_cpp_condition "$header" "$condition" "$@" || die "ERROR: $condition not satisfied"
1143 }
1144
1145 require_pkg_config(){
1146     log require_pkg_config "$@"
1147     pkg_version="$2"
1148     check_pkg_config "$@" || die "ERROR: $pkg_version not found"
1149 }
1150
1151 hostcc_e(){
1152     eval printf '%s\\n' $HOSTCC_E
1153 }
1154
1155 hostcc_o(){
1156     eval printf '%s\\n' $HOSTCC_O
1157 }
1158
1159 check_host_cc(){
1160     log check_host_cc "$@"
1161     cat > $TMPC
1162     log_file $TMPC
1163     check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
1164 }
1165
1166 check_host_cpp(){
1167     log check_host_cpp "$@"
1168     cat > $TMPC
1169     log_file $TMPC
1170     check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
1171 }
1172
1173 check_host_cppflags(){
1174     log check_host_cppflags "$@"
1175     check_host_cpp "$@" <<EOF && append host_cppflags "$@"
1176 #include <stdlib.h>;
1177 EOF
1178 }
1179
1180 check_host_cflags(){
1181     log check_host_cflags "$@"
1182     set -- $($host_cflags_filter "$@")
1183     check_host_cc "$@" <<EOF && append host_cflags "$@"
1184 int x;
1185 EOF
1186 }
1187
1188 check_host_cpp_condition(){
1189     log check_host_cpp_condition "$@"
1190     header=$1
1191     condition=$2
1192     shift 2
1193     check_host_cpp "$@" <<EOF
1194 #include <$header>
1195 #if !($condition)
1196 #error "unsatisfied condition: $condition"
1197 #endif
1198 EOF
1199 }
1200
1201 apply(){
1202     file=$1
1203     shift
1204     "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
1205 }
1206
1207 cp_if_changed(){
1208     cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
1209     mkdir -p "$(dirname $2)"
1210     cp -f "$1" "$2"
1211 }
1212
1213 # CONFIG_LIST contains configurable options, while HAVE_LIST is for
1214 # system-dependent things.
1215
1216 AVCODEC_COMPONENTS="
1217     bsfs
1218     decoders
1219     encoders
1220     hwaccels
1221     parsers
1222 "
1223
1224 AVDEVICE_COMPONENTS="
1225     indevs
1226     outdevs
1227 "
1228 AVFILTER_COMPONENTS="
1229     filters
1230 "
1231 AVFORMAT_COMPONENTS="
1232     demuxers
1233     muxers
1234     protocols
1235 "
1236
1237 AVRESAMPLE_COMPONENTS=""
1238 AVUTIL_COMPONENTS=""
1239
1240 COMPONENT_LIST="
1241     $AVCODEC_COMPONENTS
1242     $AVDEVICE_COMPONENTS
1243     $AVFILTER_COMPONENTS
1244     $AVFORMAT_COMPONENTS
1245     $AVRESAMPLE_COMPONENTS
1246     $AVUTIL_COMPONENTS
1247 "
1248
1249 EXAMPLE_LIST="
1250     decode_audio_example
1251     decode_video_example
1252     encode_audio_example
1253     encode_video_example
1254     filter_audio_example
1255     metadata_example
1256     output_example
1257     qsvdec_example
1258     transcode_aac_example
1259 "
1260
1261 # catchall list of things that require external libs to link
1262 EXTRALIBS_LIST="
1263     cpu_init
1264     cws2fws
1265 "
1266
1267 HWACCEL_LIBRARY_NONFREE_LIST="
1268     cuda
1269     libnpp
1270 "
1271 HWACCEL_LIBRARY_LIST="
1272     $HWACCEL_LIBRARY_NONFREE_LIST
1273     d3d11va
1274     dxva2
1275     libmfx
1276     mmal
1277     nvenc
1278     omx
1279     vaapi
1280     vda
1281     vdpau
1282 "
1283
1284 EXTERNAL_LIBRARY_GPL_LIST="
1285     libcdio
1286     libx264
1287     libx265
1288     libxavs
1289     libxvid
1290 "
1291
1292 EXTERNAL_LIBRARY_NONFREE_LIST="
1293     libfaac
1294     libfdk_aac
1295     openssl
1296 "
1297
1298 EXTERNAL_LIBRARY_VERSION3_LIST="
1299     libopencore_amrnb
1300     libopencore_amrwb
1301     libvo_aacenc
1302     libvo_amrwbenc
1303 "
1304
1305 EXTERNAL_LIBRARY_LIST="
1306     $EXTERNAL_LIBRARY_GPL_LIST
1307     $EXTERNAL_LIBRARY_NONFREE_LIST
1308     $EXTERNAL_LIBRARY_VERSION3_LIST
1309     avisynth
1310     avxsynth
1311     frei0r
1312     gnutls
1313     libbs2b
1314     libdc1394
1315     libdcadec
1316     libfontconfig
1317     libfreetype
1318     libgsm
1319     libhdcd
1320     libilbc
1321     libjack
1322     libkvazaar
1323     libmp3lame
1324     libopencv
1325     libopenh264
1326     libopenjpeg
1327     libopus
1328     libpulse
1329     librtmp
1330     libschroedinger
1331     libsnappy
1332     libspeex
1333     libtheora
1334     libtwolame
1335     libvorbis
1336     libvpx
1337     libwavpack
1338     libwebp
1339     libxcb
1340     libxcb_shm
1341     libxcb_xfixes
1342 "
1343
1344 SYSTEM_LIBRARY_LIST="
1345     bzlib
1346     zlib
1347 "
1348
1349 FEATURE_LIST="
1350     gray
1351     hardcoded_tables
1352     omx_rpi
1353     runtime_cpudetect
1354     safe_bitstream_reader
1355     shared
1356     small
1357     sram
1358     static
1359     swscale_alpha
1360 "
1361
1362 LIBRARY_LIST="
1363     avcodec
1364     avdevice
1365     avfilter
1366     avformat
1367     avresample
1368     avutil
1369     swscale
1370 "
1371
1372 LICENSE_LIST="
1373     gpl
1374     nonfree
1375     version3
1376 "
1377
1378 PROGRAM_LIST="
1379     avconv
1380     avplay
1381     avprobe
1382 "
1383
1384 SUBSYSTEM_LIST="
1385     dct
1386     doc
1387     error_resilience
1388     faan
1389     fft
1390     lsp
1391     lzo
1392     mdct
1393     network
1394     rdft
1395 "
1396
1397 # COMPONENT_LIST needs to come last to ensure correct dependency checking
1398 CONFIG_LIST="
1399     $EXAMPLE_LIST
1400     $EXTERNAL_LIBRARY_LIST
1401     $HWACCEL_LIBRARY_LIST
1402     $FEATURE_LIST
1403     $LICENSE_LIST
1404     $LIBRARY_LIST
1405     $PROGRAM_LIST
1406     $SUBSYSTEM_LIST
1407     $SYSTEM_LIBRARY_LIST
1408     neon_clobber_test
1409     pic
1410     pod2man
1411     texi2html
1412     thumb
1413     valgrind_backtrace
1414     xmm_clobber_test
1415     $COMPONENT_LIST
1416 "
1417
1418 THREADS_LIST="
1419     pthreads
1420     w32threads
1421 "
1422
1423 ATOMICS_LIST="
1424     atomics_gcc
1425     atomics_suncc
1426     atomics_win32
1427 "
1428
1429 ARCH_LIST="
1430     aarch64
1431     alpha
1432     arm
1433     avr32
1434     avr32_ap
1435     avr32_uc
1436     bfin
1437     ia64
1438     m68k
1439     mips
1440     mips64
1441     parisc
1442     ppc
1443     ppc64
1444     s390
1445     sh4
1446     sparc
1447     sparc64
1448     tilegx
1449     tilepro
1450     tomi
1451     x86
1452     x86_32
1453     x86_64
1454 "
1455
1456 ARCH_EXT_LIST_ARM="
1457     armv5te
1458     armv6
1459     armv6t2
1460     armv8
1461     neon
1462     vfp
1463     vfpv3
1464 "
1465
1466 ARCH_EXT_LIST_X86_SIMD="
1467     amd3dnow
1468     amd3dnowext
1469     avx
1470     avx2
1471     fma3
1472     fma4
1473     mmx
1474     mmxext
1475     sse
1476     sse2
1477     sse3
1478     sse4
1479     sse42
1480     ssse3
1481     xop
1482 "
1483
1484 ARCH_EXT_LIST_PPC="
1485     altivec
1486     dcbzl
1487     ldbrx
1488     power8
1489     ppc4xx
1490     vsx
1491 "
1492
1493 ARCH_EXT_LIST_X86="
1494     $ARCH_EXT_LIST_X86_SIMD
1495     cpunop
1496     i686
1497 "
1498
1499 ARCH_EXT_LIST_MIPS="
1500     loongson
1501     mips32r1
1502     mips64r1
1503     mips32r2
1504     mips64r2
1505     mips32r6
1506     mips64r6
1507 "
1508
1509 ARCH_EXT_LIST="
1510     $ARCH_EXT_LIST_ARM
1511     $ARCH_EXT_LIST_MIPS
1512     $ARCH_EXT_LIST_PPC
1513     $ARCH_EXT_LIST_X86
1514     vis
1515 "
1516
1517 ARCH_FEATURES="
1518     aligned_stack
1519     fast_64bit
1520     fast_clz
1521     fast_cmov
1522     local_aligned_8
1523     local_aligned_16
1524     local_aligned_32
1525     simd_align_16
1526     simd_align_32
1527 "
1528
1529 BUILTIN_LIST="
1530     atomic_cas_ptr
1531     machine_rw_barrier
1532     MemoryBarrier
1533     mm_empty
1534     rdtsc
1535     sem_timedwait
1536     sync_val_compare_and_swap
1537 "
1538 HAVE_LIST_CMDLINE="
1539     inline_asm
1540     symver
1541     x86asm
1542 "
1543
1544 HAVE_LIST_PUB="
1545     bigendian
1546     fast_unaligned
1547 "
1548
1549 HEADERS_LIST="
1550     AVFoundation_AVFoundation_h
1551     alsa_asoundlib_h
1552     arpa_inet_h
1553     cdio_paranoia_h
1554     cdio_paranoia_paranoia_h
1555     d3d11_h
1556     dispatch_dispatch_h
1557     dev_bktr_ioctl_bt848_h
1558     dev_bktr_ioctl_meteor_h
1559     dev_ic_bt8xx_h
1560     dev_video_bktr_ioctl_bt848_h
1561     dev_video_meteor_ioctl_meteor_h
1562     direct_h
1563     dlfcn_h
1564     dxgidebug_h
1565     dxva_h
1566     gsm_h
1567     io_h
1568     mach_mach_time_h
1569     machine_ioctl_bt848_h
1570     machine_ioctl_meteor_h
1571     malloc_h
1572     poll_h
1573     sndio_h
1574     soundcard_h
1575     stdatomic_h
1576     sys_mman_h
1577     sys_param_h
1578     sys_resource_h
1579     sys_select_h
1580     sys_soundcard_h
1581     sys_time_h
1582     sys_un_h
1583     sys_videoio_h
1584     unistd_h
1585     valgrind_valgrind_h
1586     windows_h
1587     winsock2_h
1588 "
1589
1590 INTRINSICS_LIST="
1591     intrinsics_neon
1592 "
1593
1594 MATH_FUNCS="
1595     atanf
1596     atan2f
1597     cbrtf
1598     cosf
1599     exp2
1600     exp2f
1601     expf
1602     isinf
1603     isnan
1604     ldexpf
1605     llrint
1606     llrintf
1607     log2
1608     log2f
1609     log10f
1610     lrint
1611     lrintf
1612     powf
1613     rint
1614     round
1615     roundf
1616     sinf
1617     trunc
1618     truncf
1619 "
1620
1621 SYSTEM_FUNCS="
1622     aligned_malloc
1623     clock_gettime
1624     closesocket
1625     CommandLineToArgvW
1626     CoTaskMemFree
1627     CryptGenRandom
1628     fcntl
1629     flt_lim
1630     fork
1631     getaddrinfo
1632     gethrtime
1633     getopt
1634     GetProcessAffinityMask
1635     GetProcessMemoryInfo
1636     GetProcessTimes
1637     getrusage
1638     GetSystemTimeAsFileTime
1639     gettimeofday
1640     gmtime_r
1641     inet_aton
1642     isatty
1643     LoadLibrary
1644     localtime_r
1645     mach_absolute_time
1646     MapViewOfFile
1647     memalign
1648     mkstemp
1649     mmap
1650     mprotect
1651     nanosleep
1652     posix_memalign
1653     sched_getaffinity
1654     SetConsoleTextAttribute
1655     setmode
1656     setrlimit
1657     Sleep
1658     strerror_r
1659     sysconf
1660     sysctl
1661     usleep
1662     VirtualAlloc
1663 "
1664
1665 TOOLCHAIN_FEATURES="
1666     as_arch_directive
1667     as_fpu_directive
1668     as_func
1669     as_object_arch
1670     asm_mod_q
1671     attribute_may_alias
1672     attribute_packed
1673     blocks_extension
1674     ebp_available
1675     ebx_available
1676     gnu_as
1677     ibm_asm
1678     inline_asm_labels
1679     pragma_deprecated
1680     symver_asm_label
1681     symver_gnu_asm
1682     vfp_args
1683     xform_asm
1684     xmm_clobbers
1685 "
1686
1687 TYPES_LIST="
1688     CONDITION_VARIABLE_Ptr
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     dirac_parse
1740     dvprofile
1741     faandct
1742     faanidct
1743     fdctdsp
1744     flacdsp
1745     fmtconvert
1746     g722dsp
1747     gmp
1748     golomb
1749     gplv3
1750     h263dsp
1751     h264chroma
1752     h264dsp
1753     h264parse
1754     h264pred
1755     h264qpel
1756     hevc_ps
1757     hpeldsp
1758     huffman
1759     huffyuvdsp
1760     huffyuvencdsp
1761     idctdsp
1762     iirfilter
1763     imdct15
1764     intrax8
1765     iso_media
1766     ividsp
1767     jpegtables
1768     lgplv3
1769     libx262
1770     libxcb_shape
1771     lpc
1772     lzf
1773     me_cmp
1774     mpeg_er
1775     mpegaudio
1776     mpegaudiodsp
1777     mpegaudioheader
1778     mpegvideo
1779     mpegvideoenc
1780     mss34dsp
1781     pixblockdsp
1782     qpeldsp
1783     qsv
1784     qsvdec
1785     qsvenc
1786     rangecoder
1787     riffdec
1788     riffenc
1789     rtpdec
1790     rtpenc_chain
1791     rv34dsp
1792     sinewin
1793     snappy
1794     srtp
1795     startcode
1796     texturedsp
1797     texturedspenc
1798     tpeldsp
1799     vaapi_encode
1800     vc1dsp
1801     videodsp
1802     vp3dsp
1803     vp56dsp
1804     vp8dsp
1805     wma_freqs
1806     wmv2dsp
1807 "
1808
1809 CMDLINE_SELECT="
1810     $ARCH_EXT_LIST
1811     $CONFIG_LIST
1812     $HAVE_LIST_CMDLINE
1813     $THREADS_LIST
1814     asm
1815     cross_compile
1816     debug
1817     extra_warnings
1818     logging
1819     lto
1820     optimizations
1821     rpath
1822 "
1823
1824 PATHS_LIST="
1825     bindir
1826     datadir
1827     docdir
1828     incdir
1829     libdir
1830     mandir
1831     prefix
1832     shlibdir
1833 "
1834
1835 CMDLINE_SET="
1836     $PATHS_LIST
1837     ar
1838     arch
1839     as
1840     cc
1841     objcc
1842     cpu
1843     cross_prefix
1844     custom_allocator
1845     dep_cc
1846     env
1847     extra_version
1848     host_cc
1849     host_cflags
1850     host_extralibs
1851     host_ld
1852     host_ldflags
1853     host_os
1854     ignore_tests
1855     ld
1856     logfile
1857     malloc_prefix
1858     nm
1859     optflags
1860     pkg_config
1861     pkg_config_flags
1862     random_seed
1863     samples
1864     sysinclude
1865     sysroot
1866     target_exec
1867     target_os
1868     target_path
1869     target_samples
1870     toolchain
1871     x86asmexe
1872 "
1873
1874 CMDLINE_APPEND="
1875     extra_cflags
1876     extra_objcflags
1877     host_cppflags
1878 "
1879
1880 # code dependency declarations
1881
1882 # architecture extensions
1883
1884 armv5te_deps="arm"
1885 armv6_deps="arm"
1886 armv6t2_deps="arm"
1887 armv8_deps="aarch64"
1888 neon_deps_any="aarch64 arm"
1889 intrinsics_neon_deps="neon"
1890 vfp_deps_any="aarch64 arm"
1891 vfpv3_deps="vfp"
1892
1893 map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
1894
1895 altivec_deps="ppc"
1896 dcbzl_deps="ppc"
1897 ldbrx_deps="ppc"
1898 ppc4xx_deps="ppc"
1899 vsx_deps="altivec"
1900 power8_deps="vsx"
1901
1902 loongson_deps="mips"
1903 mips32r1_deps="mips32"
1904 mips32r2_deps="mips32"
1905 mips32r6_deps="mips32"
1906 mips64r1_deps="mips64"
1907 mips64r2_deps="mips64"
1908 mips64r6_deps="mips64"
1909
1910 vis_deps="sparc"
1911
1912 cpunop_deps="i686"
1913 x86_64_select="i686"
1914 x86_64_suggest="fast_cmov"
1915
1916 amd3dnow_deps="mmx"
1917 amd3dnowext_deps="amd3dnow"
1918 i686_deps="x86"
1919 mmx_deps="x86"
1920 mmxext_deps="mmx"
1921 sse_deps="mmxext"
1922 sse2_deps="sse"
1923 sse3_deps="sse2"
1924 ssse3_deps="sse3"
1925 sse4_deps="ssse3"
1926 sse42_deps="sse4"
1927 avx_deps="sse42"
1928 xop_deps="avx"
1929 fma3_deps="avx"
1930 fma4_deps="avx"
1931 avx2_deps="avx"
1932
1933 mmx_external_deps="x86asm"
1934 mmx_inline_deps="inline_asm x86"
1935 mmx_suggest="mmx_external mmx_inline"
1936
1937 for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
1938     eval dep=\$${ext}_deps
1939     eval ${ext}_external_deps='"${dep}_external"'
1940     eval ${ext}_inline_deps='"${dep}_inline"'
1941     eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
1942 done
1943
1944 aligned_stack_if_any="aarch64 ppc x86"
1945 fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1946 fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
1947 fast_unaligned_if_any="aarch64 ppc x86"
1948 simd_align_16_if_any="altivec neon sse"
1949 simd_align_32_if_any="avx"
1950
1951 # system capabilities
1952 symver_if_any="symver_asm_label symver_gnu_asm"
1953 valgrind_backtrace_conflict="optimizations"
1954 valgrind_backtrace_deps="valgrind_valgrind_h"
1955
1956 # threading support
1957 atomics_gcc_if="sync_val_compare_and_swap"
1958 atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
1959 atomics_win32_if="MemoryBarrier"
1960 atomics_native_if_any="$ATOMICS_LIST"
1961 w32threads_deps="atomics_native"
1962 threads_if_any="$THREADS_LIST"
1963
1964 # subsystems
1965 dct_select="rdft"
1966 dirac_parse_select="golomb"
1967 error_resilience_select="me_cmp"
1968 faandct_deps="faan"
1969 faandct_select="fdctdsp"
1970 faanidct_deps="faan"
1971 faanidct_select="idctdsp"
1972 h264dsp_select="startcode"
1973 hevc_ps_select="golomb"
1974 intrax8_select="blockdsp idctdsp"
1975 mdct_select="fft"
1976 rdft_select="fft"
1977 me_cmp_select="fdctdsp idctdsp pixblockdsp"
1978 mpeg_er_select="error_resilience"
1979 mpegaudio_select="mpegaudiodsp mpegaudioheader"
1980 mpegaudiodsp_select="dct"
1981 mpegvideo_select="blockdsp hpeldsp idctdsp me_cmp mpeg_er videodsp"
1982 mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
1983 vc1dsp_select="h264chroma qpeldsp startcode"
1984
1985 # decoders / encoders
1986 aac_decoder_select="adts_header imdct15 mdct sinewin"
1987 aac_encoder_select="audio_frame_queue iirfilter mdct sinewin"
1988 aac_latm_decoder_select="aac_decoder aac_latm_parser"
1989 ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
1990 ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
1991 ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
1992 adpcm_g722_decoder_select="g722dsp"
1993 adpcm_g722_encoder_select="g722dsp"
1994 aic_decoder_select="golomb idctdsp"
1995 alac_encoder_select="lpc"
1996 als_decoder_select="bswapdsp"
1997 amrnb_decoder_select="lsp"
1998 amrwb_decoder_select="lsp"
1999 amv_decoder_select="sp5x_decoder"
2000 ape_decoder_select="bswapdsp"
2001 asv1_decoder_select="blockdsp bswapdsp idctdsp"
2002 asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
2003 asv2_decoder_select="blockdsp bswapdsp idctdsp"
2004 asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
2005 atrac1_decoder_select="mdct sinewin"
2006 atrac3_decoder_select="mdct"
2007 atrac3p_decoder_select="mdct sinewin"
2008 bink_decoder_select="blockdsp hpeldsp"
2009 binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
2010 binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
2011 cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
2012 clearvideo_decoder_select="idctdsp"
2013 cllc_decoder_select="bswapdsp"
2014 comfortnoise_encoder_select="lpc"
2015 cook_decoder_select="audiodsp mdct sinewin"
2016 cscd_decoder_select="lzo"
2017 cscd_decoder_suggest="zlib"
2018 dca_decoder_select="fmtconvert mdct"
2019 dds_decoder_select="texturedsp"
2020 dnxhd_decoder_select="blockdsp idctdsp"
2021 dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
2022 dvvideo_decoder_select="dvprofile idctdsp"
2023 dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
2024 dxa_decoder_deps="zlib"
2025 dxv_decoder_select="lzf texturedsp"
2026 eac3_decoder_select="ac3_decoder"
2027 eac3_encoder_select="ac3_encoder"
2028 eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
2029 eatgq_decoder_select="aandcttables idctdsp"
2030 eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
2031 exr_decoder_deps="zlib"
2032 ffv1_decoder_select="rangecoder"
2033 ffv1_encoder_select="rangecoder"
2034 ffvhuff_decoder_select="huffyuv_decoder"
2035 ffvhuff_encoder_select="huffyuv_encoder"
2036 fic_decoder_select="golomb"
2037 flac_decoder_select="flacdsp"
2038 flac_encoder_select="bswapdsp flacdsp lpc"
2039 flashsv_decoder_deps="zlib"
2040 flashsv_encoder_deps="zlib"
2041 flashsv2_decoder_deps="zlib"
2042 flv_decoder_select="h263_decoder"
2043 flv_encoder_select="h263_encoder"
2044 fourxm_decoder_select="blockdsp bswapdsp"
2045 fraps_decoder_select="bswapdsp huffman"
2046 g2m_decoder_deps="zlib"
2047 g2m_decoder_select="blockdsp idctdsp jpegtables"
2048 h261_decoder_select="mpeg_er mpegvideo"
2049 h261_encoder_select="aandcttables mpegvideoenc"
2050 h263_decoder_select="error_resilience h263_parser h263dsp mpeg_er mpegvideo qpeldsp"
2051 h263_encoder_select="aandcttables h263dsp mpegvideoenc"
2052 h263i_decoder_select="h263_decoder"
2053 h263p_encoder_select="h263_encoder"
2054 h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
2055 h264_decoder_suggest="error_resilience"
2056 hap_decoder_select="snappy texturedsp"
2057 hap_encoder_deps="libsnappy"
2058 hap_encoder_select="texturedspenc"
2059 hevc_decoder_select="bswapdsp cabac hevc_ps videodsp"
2060 huffyuv_decoder_select="bswapdsp huffyuvdsp"
2061 huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp"
2062 iac_decoder_select="imc_decoder"
2063 imc_decoder_select="bswapdsp fft mdct sinewin"
2064 indeo3_decoder_select="hpeldsp"
2065 indeo4_decoder_select="ividsp"
2066 indeo5_decoder_select="ividsp"
2067 interplay_video_decoder_select="hpeldsp"
2068 jpegls_decoder_select="mjpeg_decoder"
2069 jv_decoder_select="blockdsp"
2070 lagarith_decoder_select="huffyuvdsp"
2071 ljpeg_encoder_select="aandcttables idctdsp jpegtables"
2072 magicyuv_decoder_select="huffyuvdsp"
2073 mdec_decoder_select="blockdsp idctdsp mpegvideo"
2074 metasound_decoder_select="lsp mdct sinewin"
2075 mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
2076 mjpeg_decoder_select="blockdsp hpeldsp idctdsp jpegtables"
2077 mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
2078 mjpegb_decoder_select="mjpeg_decoder"
2079 mlp_decoder_select="mlp_parser"
2080 motionpixels_decoder_select="bswapdsp"
2081 mp1_decoder_select="mpegaudio"
2082 mp1float_decoder_select="mpegaudio"
2083 mp2_decoder_select="mpegaudio"
2084 mp2float_decoder_select="mpegaudio"
2085 mp3_decoder_select="mpegaudio"
2086 mp3adu_decoder_select="mpegaudio"
2087 mp3adufloat_decoder_select="mpegaudio"
2088 mp3float_decoder_select="mpegaudio"
2089 mp3on4_decoder_select="mpegaudio"
2090 mp3on4float_decoder_select="mpegaudio"
2091 mpc7_decoder_select="bswapdsp mpegaudiodsp"
2092 mpc8_decoder_select="mpegaudiodsp"
2093 mpeg1video_decoder_select="error_resilience mpeg_er mpegvideo"
2094 mpeg1video_encoder_select="aandcttables mpegvideoenc"
2095 mpeg2video_decoder_select="error_resilience mpeg_er mpegvideo"
2096 mpeg2video_encoder_select="aandcttables mpegvideoenc"
2097 mpeg4_decoder_select="h263_decoder mpeg4video_parser"
2098 mpeg4_encoder_select="h263_encoder"
2099 msa1_decoder_select="mss34dsp"
2100 msmpeg4v1_decoder_select="h263_decoder"
2101 msmpeg4v2_decoder_select="h263_decoder"
2102 msmpeg4v2_encoder_select="h263_encoder"
2103 msmpeg4v3_decoder_select="h263_decoder"
2104 msmpeg4v3_encoder_select="h263_encoder"
2105 mss2_decoder_select="error_resilience mpeg_er mpegvideo qpeldsp vc1_decoder"
2106 mts2_decoder_select="mss34dsp"
2107 mxpeg_decoder_select="mjpeg_decoder"
2108 nellymoser_decoder_select="mdct sinewin"
2109 nellymoser_encoder_select="audio_frame_queue mdct sinewin"
2110 nuv_decoder_select="idctdsp lzo"
2111 on2avc_decoder_select="mdct"
2112 opus_decoder_deps="avresample"
2113 opus_decoder_select="imdct15"
2114 png_decoder_deps="zlib"
2115 png_encoder_deps="zlib"
2116 png_encoder_select="huffyuvencdsp"
2117 prores_decoder_select="idctdsp"
2118 prores_encoder_select="fdctdsp"
2119 qcelp_decoder_select="lsp"
2120 qdm2_decoder_select="mdct rdft mpegaudiodsp"
2121 ra_144_encoder_select="audio_frame_queue lpc"
2122 ralf_decoder_select="golomb"
2123 rscc_decoder_deps="zlib"
2124 rv10_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2125 rv10_encoder_select="h263_encoder"
2126 rv20_decoder_select="error_resilience h263_decoder h263dsp mpeg_er"
2127 rv20_encoder_select="h263_encoder"
2128 rv30_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2129 rv40_decoder_select="error_resilience golomb h264chroma h264pred h264qpel mpeg_er mpegvideo rv34dsp videodsp"
2130 screenpresso_decoder_deps="zlib"
2131 sipr_decoder_select="lsp"
2132 sp5x_decoder_select="mjpeg_decoder"
2133 svq1_decoder_select="hpeldsp"
2134 svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
2135 svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
2136 svq3_decoder_suggest="zlib"
2137 tak_decoder_select="audiodsp"
2138 tdsc_decoder_deps="zlib"
2139 tdsc_decoder_select="mjpeg_decoder"
2140 theora_decoder_select="vp3_decoder"
2141 thp_decoder_select="mjpeg_decoder"
2142 tiff_decoder_suggest="zlib"
2143 tiff_encoder_suggest="zlib"
2144 truehd_decoder_select="mlp_decoder"
2145 truemotion2_decoder_select="bswapdsp"
2146 truespeech_decoder_select="bswapdsp"
2147 tscc_decoder_deps="zlib"
2148 txd_decoder_select="texturedsp"
2149 twinvq_decoder_select="mdct lsp sinewin"
2150 utvideo_decoder_select="bswapdsp huffyuvdsp"
2151 utvideo_encoder_select="bswapdsp huffman huffyuvencdsp"
2152 vble_decoder_select="huffyuvdsp"
2153 vc1_decoder_select="blockdsp error_resilience h263_decoder h264qpel intrax8 mpeg_er mpegvideo vc1dsp"
2154 vc1image_decoder_select="vc1_decoder"
2155 vorbis_decoder_select="mdct"
2156 vorbis_encoder_select="mdct"
2157 vp3_decoder_select="hpeldsp vp3dsp videodsp"
2158 vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
2159 vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
2160 vp6a_decoder_select="vp6_decoder"
2161 vp6f_decoder_select="vp6_decoder"
2162 vp7_decoder_select="h264pred videodsp vp8dsp"
2163 vp8_decoder_select="h264pred videodsp vp8dsp"
2164 vp9_decoder_select="videodsp vp9_superframe_split_bsf"
2165 webp_decoder_select="vp8_decoder"
2166 wmapro_decoder_select="mdct sinewin wma_freqs"
2167 wmav1_decoder_select="mdct sinewin wma_freqs"
2168 wmav1_encoder_select="mdct sinewin wma_freqs"
2169 wmav2_decoder_select="mdct sinewin wma_freqs"
2170 wmav2_encoder_select="mdct sinewin wma_freqs"
2171 wmavoice_decoder_select="lsp rdft dct mdct sinewin"
2172 wmv1_decoder_select="h263_decoder"
2173 wmv1_encoder_select="h263_encoder"
2174 wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
2175 wmv2_encoder_select="h263_encoder wmv2dsp"
2176 wmv3_decoder_select="vc1_decoder"
2177 wmv3image_decoder_select="wmv3_decoder"
2178 zerocodec_decoder_deps="zlib"
2179 zlib_decoder_deps="zlib"
2180 zlib_encoder_deps="zlib"
2181 zmbv_decoder_deps="zlib"
2182 zmbv_encoder_deps="zlib"
2183
2184 # hardware accelerators
2185 d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder"
2186 dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
2187 vda_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension pthreads"
2188 vda_extralibs="-framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore"
2189
2190 h263_vaapi_hwaccel_deps="vaapi"
2191 h263_vaapi_hwaccel_select="h263_decoder"
2192 h264_d3d11va_hwaccel_deps="d3d11va"
2193 h264_d3d11va_hwaccel_select="h264_decoder"
2194 h264_d3d11va2_hwaccel_deps="d3d11va"
2195 h264_d3d11va2_hwaccel_select="h264_decoder"
2196 h264_dxva2_hwaccel_deps="dxva2"
2197 h264_dxva2_hwaccel_select="h264_decoder"
2198 h264_mmal_hwaccel_deps="mmal"
2199 h264_qsv_hwaccel_deps="libmfx"
2200 h264_vaapi_hwaccel_deps="vaapi"
2201 h264_vaapi_hwaccel_select="h264_decoder"
2202 h264_vda_hwaccel_deps="vda"
2203 h264_vda_hwaccel_select="h264_decoder"
2204 h264_vda_old_hwaccel_deps="vda"
2205 h264_vda_old_hwaccel_select="h264_decoder"
2206 h264_vdpau_hwaccel_deps="vdpau"
2207 h264_vdpau_hwaccel_select="h264_decoder"
2208 hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2209 hevc_d3d11va_hwaccel_select="hevc_decoder"
2210 hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
2211 hevc_d3d11va2_hwaccel_select="hevc_decoder"
2212 hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
2213 hevc_dxva2_hwaccel_select="hevc_decoder"
2214 hevc_qsv_hwaccel_deps="libmfx"
2215 hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
2216 hevc_vaapi_hwaccel_select="hevc_decoder"
2217 hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
2218 hevc_vdpau_hwaccel_select="hevc_decoder"
2219 mpeg1_vdpau_hwaccel_deps="vdpau"
2220 mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
2221 mpeg2_d3d11va_hwaccel_deps="d3d11va"
2222 mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
2223 mpeg2_d3d11va2_hwaccel_deps="d3d11va"
2224 mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
2225 mpeg2_dxva2_hwaccel_deps="dxva2"
2226 mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
2227 mpeg2_mmal_hwaccel_deps="mmal"
2228 mpeg2_qsv_hwaccel_deps="libmfx"
2229 mpeg2_vaapi_hwaccel_deps="vaapi"
2230 mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
2231 mpeg2_vdpau_hwaccel_deps="vdpau"
2232 mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
2233 mpeg4_vaapi_hwaccel_deps="vaapi"
2234 mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
2235 mpeg4_vdpau_hwaccel_deps="vdpau"
2236 mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
2237 vc1_d3d11va_hwaccel_deps="d3d11va"
2238 vc1_d3d11va_hwaccel_select="vc1_decoder"
2239 vc1_d3d11va2_hwaccel_deps="d3d11va"
2240 vc1_d3d11va2_hwaccel_select="vc1_decoder"
2241 vc1_dxva2_hwaccel_deps="dxva2"
2242 vc1_dxva2_hwaccel_select="vc1_decoder"
2243 vc1_mmal_hwaccel_deps="mmal"
2244 vc1_qsv_hwaccel_deps="libmfx"
2245 vc1_vaapi_hwaccel_deps="vaapi"
2246 vc1_vaapi_hwaccel_select="vc1_decoder"
2247 vc1_vdpau_hwaccel_deps="vdpau"
2248 vc1_vdpau_hwaccel_select="vc1_decoder"
2249 vp8_qsv_hwaccel_deps="libmfx"
2250 vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
2251 vp8_vaapi_hwaccel_select="vp8_decoder"
2252 wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
2253 wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
2254 wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
2255 wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
2256 wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
2257
2258 # hardware-accelerated codecs
2259 nvenc_deps_any="libdl LoadLibrary"
2260 omx_deps="libdl pthreads"
2261 omx_rpi_select="omx"
2262 qsv_deps="libmfx"
2263 qsvdec_select="qsv"
2264 qsvenc_select="qsv"
2265 vaapi_encode_deps="vaapi"
2266
2267 hwupload_cuda_filter_deps="cuda"
2268 scale_npp_filter_deps="cuda libnpp"
2269
2270 h264_mmal_decoder_deps="mmal"
2271 h264_nvenc_encoder_deps="nvenc"
2272 h264_omx_encoder_deps="omx"
2273 h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
2274 h264_qsv_encoder_select="qsvenc"
2275 h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
2276 h264_vaapi_encoder_select="vaapi_encode golomb"
2277 hevc_nvenc_encoder_deps="nvenc"
2278 hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser hevc_qsv_hwaccel qsvdec"
2279 hevc_qsv_encoder_select="hevc_ps qsvenc"
2280 hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
2281 hevc_vaapi_encoder_select="vaapi_encode golomb"
2282 mjpeg_qsv_encoder_deps="libmfx"
2283 mjpeg_qsv_encoder_select="qsvenc"
2284 mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
2285 mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
2286 mpeg2_mmal_decoder_deps="mmal"
2287 mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel mpegvideo_parser"
2288 mpeg2_qsv_encoder_select="qsvenc"
2289 mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
2290 mpeg2_vaapi_encoder_select="vaapi_encode"
2291 mpeg4_omx_encoder_deps="omx"
2292 vc1_mmal_decoder_deps="mmal"
2293 vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
2294 vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
2295 vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
2296 vp8_vaapi_encoder_select="vaapi_encode"
2297 vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
2298 vp9_vaapi_encoder_select="vaapi_encode"
2299
2300 nvenc_h264_encoder_select="h264_nvenc_encoder"
2301 nvenc_hevc_encoder_select="hevc_nvenc_encoder"
2302
2303 # parsers
2304 aac_parser_select="adts_header"
2305 h264_parser_select="golomb h264dsp h264parse"
2306 hevc_parser_select="hevc_ps"
2307 mpegaudio_parser_select="mpegaudioheader"
2308 mpegvideo_parser_select="mpegvideo"
2309 mpeg4video_parser_select="error_resilience h263dsp mpegvideo qpeldsp"
2310 vc1_parser_select="vc1dsp"
2311
2312 # bitstream_filters
2313 aac_adtstoasc_bsf_select="adts_header"
2314 mjpeg2jpeg_bsf_select="jpegtables"
2315
2316 # external libraries
2317 avisynth_deps="LoadLibrary"
2318 avxsynth_deps="libdl"
2319 avisynth_demuxer_deps_any="avisynth avxsynth"
2320 avisynth_demuxer_select="riffdec"
2321 libdcadec_decoder_deps="libdcadec"
2322 libfaac_encoder_deps="libfaac"
2323 libfaac_encoder_select="audio_frame_queue"
2324 libfdk_aac_decoder_deps="libfdk_aac"
2325 libfdk_aac_encoder_deps="libfdk_aac"
2326 libfdk_aac_encoder_select="audio_frame_queue"
2327 libgsm_decoder_deps="libgsm"
2328 libgsm_encoder_deps="libgsm"
2329 libgsm_ms_decoder_deps="libgsm"
2330 libgsm_ms_encoder_deps="libgsm"
2331 libilbc_decoder_deps="libilbc"
2332 libilbc_encoder_deps="libilbc"
2333 libkvazaar_encoder_deps="libkvazaar"
2334 libmp3lame_encoder_deps="libmp3lame"
2335 libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
2336 libopencore_amrnb_decoder_deps="libopencore_amrnb"
2337 libopencore_amrnb_encoder_deps="libopencore_amrnb"
2338 libopencore_amrnb_encoder_select="audio_frame_queue"
2339 libopencore_amrwb_decoder_deps="libopencore_amrwb"
2340 libopenh264_decoder_deps="libopenh264"
2341 libopenh264_decoder_select="h264_mp4toannexb_bsf"
2342 libopenh264_encoder_deps="libopenh264"
2343 libopenjpeg_decoder_deps="libopenjpeg"
2344 libopenjpeg_encoder_deps="libopenjpeg"
2345 libopus_decoder_deps="libopus"
2346 libopus_encoder_deps="libopus"
2347 libopus_encoder_select="audio_frame_queue"
2348 libschroedinger_decoder_deps="libschroedinger"
2349 libschroedinger_encoder_deps="libschroedinger"
2350 libspeex_decoder_deps="libspeex"
2351 libspeex_encoder_deps="libspeex"
2352 libspeex_encoder_select="audio_frame_queue"
2353 libtheora_encoder_deps="libtheora"
2354 libtwolame_encoder_deps="libtwolame"
2355 libvo_aacenc_encoder_deps="libvo_aacenc"
2356 libvo_aacenc_encoder_select="audio_frame_queue"
2357 libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
2358 libvorbis_encoder_deps="libvorbis"
2359 libvorbis_encoder_select="audio_frame_queue"
2360 libvpx_vp8_decoder_deps="libvpx"
2361 libvpx_vp8_encoder_deps="libvpx"
2362 libvpx_vp9_decoder_deps="libvpx"
2363 libvpx_vp9_encoder_deps="libvpx"
2364 libwavpack_encoder_deps="libwavpack"
2365 libwavpack_encoder_select="audio_frame_queue"
2366 libwebp_encoder_deps="libwebp"
2367 libx262_encoder_deps="libx262"
2368 libx264_encoder_deps="libx264"
2369 libx265_encoder_deps="libx265"
2370 libxavs_encoder_deps="libxavs"
2371 libxvid_encoder_deps="libxvid mkstemp"
2372
2373 # demuxers / muxers
2374 ac3_demuxer_select="ac3_parser"
2375 asf_demuxer_select="riffdec"
2376 asf_muxer_select="riffenc"
2377 asf_stream_muxer_select="asf_muxer"
2378 avi_demuxer_select="iso_media riffdec"
2379 avi_muxer_select="riffenc"
2380 caf_demuxer_select="iso_media riffdec"
2381 dash_muxer_select="mp4_muxer"
2382 dirac_demuxer_select="dirac_parser"
2383 dv_demuxer_select="dvprofile"
2384 dv_muxer_select="dvprofile"
2385 dxa_demuxer_select="riffdec"
2386 eac3_demuxer_select="ac3_parser"
2387 f4v_muxer_select="mov_muxer"
2388 flac_demuxer_select="flac_parser"
2389 hds_muxer_select="flv_muxer"
2390 hls_muxer_select="mpegts_muxer"
2391 ipod_muxer_select="mov_muxer"
2392 ismv_muxer_select="mov_muxer"
2393 matroska_audio_muxer_select="matroska_muxer"
2394 matroska_demuxer_select="iso_media riffdec"
2395 matroska_demuxer_suggest="bzlib lzo zlib"
2396 matroska_muxer_select="iso_media riffenc"
2397 mmf_muxer_select="riffenc"
2398 mov_demuxer_select="iso_media riffdec"
2399 mov_demuxer_suggest="zlib"
2400 mov_muxer_select="iso_media riffenc rtpenc_chain"
2401 mp3_demuxer_select="mpegaudio_parser"
2402 mp3_muxer_select="mpegaudioheader"
2403 mp4_muxer_select="mov_muxer"
2404 mpegts_demuxer_select="iso_media"
2405 mpegts_muxer_select="adts_muxer latm_muxer"
2406 mpegtsraw_demuxer_select="mpegts_demuxer"
2407 mxf_d10_muxer_select="mxf_muxer"
2408 nut_muxer_select="riffenc"
2409 nuv_demuxer_select="riffdec"
2410 oga_muxer_select="ogg_muxer"
2411 ogg_demuxer_select="dirac_parse"
2412 opus_muxer_select="ogg_muxer"
2413 psp_muxer_select="mov_muxer"
2414 rtp_demuxer_select="sdp_demuxer"
2415 rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
2416 rtsp_demuxer_select="http_protocol rtpdec"
2417 rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
2418 sap_demuxer_select="sdp_demuxer"
2419 sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
2420 sdp_demuxer_select="rtpdec"
2421 smoothstreaming_muxer_select="ismv_muxer"
2422 spdif_demuxer_select="adts_header"
2423 spdif_muxer_select="adts_header"
2424 spx_muxer_select="ogg_muxer"
2425 swf_demuxer_suggest="zlib"
2426 tak_demuxer_select="tak_parser"
2427 tg2_muxer_select="mov_muxer"
2428 tgp_muxer_select="mov_muxer"
2429 w64_demuxer_select="wav_demuxer"
2430 wav_demuxer_select="riffdec"
2431 wav_muxer_select="riffenc"
2432 webm_muxer_select="iso_media riffenc"
2433 wtv_demuxer_select="mpegts_demuxer riffdec"
2434 xmv_demuxer_select="riffdec"
2435 xwma_demuxer_select="riffdec"
2436
2437 # indevs / outdevs
2438 alsa_indev_deps="alsa"
2439 alsa_outdev_deps="alsa"
2440 avfoundation_indev_deps="AVFoundation_AVFoundation_h objc_arc pthreads"
2441 avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
2442 bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
2443 dv1394_indev_deps="dv1394"
2444 dv1394_indev_select="dv_demuxer"
2445 fbdev_indev_deps="linux_fb_h"
2446 jack_indev_deps="libjack"
2447 jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
2448 libcdio_indev_deps="libcdio"
2449 libdc1394_indev_deps="libdc1394"
2450 oss_indev_deps_any="soundcard_h sys_soundcard_h"
2451 oss_outdev_deps_any="soundcard_h sys_soundcard_h"
2452 pulse_indev_deps="libpulse"
2453 sndio_indev_deps="sndio"
2454 sndio_outdev_deps="sndio"
2455 v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
2456 vfwcap_indev_deps="vfw32 vfwcap_defines"
2457 xcbgrab_indev_deps="libxcb libxcb_shape"
2458 xcbgrab_indev_suggest="libxcb_shm libxcb_xfixes"
2459
2460 # protocols
2461 ffrtmpcrypt_protocol_conflict="librtmp_protocol"
2462 ffrtmpcrypt_protocol_deps_any="gmp openssl"
2463 ffrtmpcrypt_protocol_select="tcp_protocol"
2464 ffrtmphttp_protocol_conflict="librtmp_protocol"
2465 ffrtmphttp_protocol_select="http_protocol"
2466 gopher_protocol_select="network"
2467 http_protocol_select="tcp_protocol"
2468 http_protocol_suggest="zlib"
2469 httpproxy_protocol_select="tcp_protocol"
2470 httpproxy_protocol_suggest="zlib"
2471 https_protocol_select="tls_protocol"
2472 https_protocol_suggest="zlib"
2473 icecast_protocol_select="http_protocol"
2474 librtmp_protocol_deps="librtmp"
2475 librtmpe_protocol_deps="librtmp"
2476 librtmps_protocol_deps="librtmp"
2477 librtmpt_protocol_deps="librtmp"
2478 librtmpte_protocol_deps="librtmp"
2479 mmsh_protocol_select="http_protocol"
2480 mmst_protocol_select="network"
2481 rtmp_protocol_conflict="librtmp_protocol"
2482 rtmp_protocol_select="tcp_protocol"
2483 rtmp_protocol_suggest="zlib"
2484 rtmpe_protocol_select="ffrtmpcrypt_protocol"
2485 rtmpe_protocol_suggest="zlib"
2486 rtmps_protocol_conflict="librtmp_protocol"
2487 rtmps_protocol_select="tls_protocol"
2488 rtmps_protocol_suggest="zlib"
2489 rtmpt_protocol_select="ffrtmphttp_protocol"
2490 rtmpt_protocol_suggest="zlib"
2491 rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
2492 rtmpte_protocol_suggest="zlib"
2493 rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
2494 rtmpts_protocol_suggest="zlib"
2495 rtp_protocol_select="udp_protocol"
2496 sctp_protocol_deps="struct_sctp_event_subscribe"
2497 sctp_protocol_select="network"
2498 srtp_protocol_select="rtp_protocol srtp"
2499 tcp_protocol_select="network"
2500 tls_protocol_deps_any="gnutls openssl"
2501 tls_protocol_select="tcp_protocol"
2502 udp_protocol_select="network"
2503 unix_protocol_deps="sys_un_h"
2504 unix_protocol_select="network"
2505
2506 # filters
2507 asyncts_filter_deps="avresample"
2508 blackframe_filter_deps="gpl"
2509 boxblur_filter_deps="gpl"
2510 bs2b_filter_deps="libbs2b"
2511 cropdetect_filter_deps="gpl"
2512 deinterlace_qsv_filter_deps="libmfx"
2513 deinterlace_vaapi_filter_deps="vaapi"
2514 delogo_filter_deps="gpl"
2515 drawtext_filter_deps="libfreetype"
2516 drawtext_filter_suggest="libfontconfig"
2517 frei0r_filter_deps="frei0r libdl"
2518 frei0r_src_filter_deps="frei0r libdl"
2519 hdcd_filter_deps="libhdcd"
2520 hqdn3d_filter_deps="gpl"
2521 interlace_filter_deps="gpl"
2522 movie_filter_deps="avcodec avformat"
2523 ocv_filter_deps="libopencv"
2524 resample_filter_deps="avresample"
2525 scale_filter_deps="swscale"
2526 scale_qsv_filter_deps="libmfx"
2527 scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
2528
2529 # examples
2530 decode_audio_example_deps="avcodec avutil"
2531 decode_video_example_deps="avcodec avutil"
2532 encode_audio_example_deps="avcodec avutil"
2533 encode_video_example_deps="avcodec avutil"
2534 filter_audio_example_deps="avfilter avutil"
2535 metadata_example_deps="avformat avutil"
2536 output_example_deps="avcodec avformat avresample avutil swscale"
2537 qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
2538 transcode_aac_example_deps="avcodec avformat avresample"
2539
2540 # EXTRALIBS_LIST
2541 cpu_init_extralibs="pthreads_extralibs"
2542 cws2fws_extralibs="zlib_extralibs"
2543
2544 # libraries, in linking order
2545 avcodec_deps="avutil"
2546 avcodec_select="null_bsf"
2547 avdevice_deps="avformat avcodec avutil"
2548 avfilter_deps="avutil"
2549 avformat_deps="avcodec avutil"
2550 avformat_suggest="network"
2551 avresample_deps="avutil"
2552 swscale_deps="avutil"
2553
2554 avcodec_extralibs="pthreads_extralibs libm_extralibs"
2555 avdevice_extralibs="libm_extralibs"
2556 avformat_extralibs="libm_extralibs"
2557 avfilter_extralibs="pthreads_extralibs libm_extralibs"
2558 avresample_extralibs="libm_extralibs"
2559 avutil_extralibs="clock_gettime_extralibs cuda_extralibs libm_extralibs libmfx_extralibs nanosleep_extralibs pthreads_extralibs user32_extralibs vaapi_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs wincrypt_extralibs"
2560 swscale_extralibs="libm_extralibs"
2561
2562 # programs
2563 avconv_deps="avcodec avfilter avformat avresample swscale"
2564 avconv_select="aformat_filter anull_filter asyncts_filter atrim_filter format_filter
2565                fps_filter null_filter resample_filter scale_filter
2566                trim_filter"
2567 avconv_suggest="psapi shell32"
2568 avplay_deps="avcodec avfilter avformat avresample sdl"
2569 avplay_select="rdft format_filter transpose_filter hflip_filter vflip_filter"
2570 avplay_suggest="shell32"
2571 avprobe_deps="avcodec avformat"
2572 avprobe_suggest="shell32"
2573
2574 # documentation
2575 pod2man_deps="doc"
2576 texi2html_deps="doc"
2577
2578 # default parameters
2579
2580 logfile="avbuild/config.log"
2581
2582 # installation paths
2583 prefix_default="/usr/local"
2584 bindir_default='${prefix}/bin'
2585 datadir_default='${prefix}/share/avconv'
2586 docdir_default='${prefix}/share/doc/libav'
2587 incdir_default='${prefix}/include'
2588 libdir_default='${prefix}/lib'
2589 mandir_default='${prefix}/share/man'
2590 shlibdir_default="$libdir_default"
2591
2592 # toolchain
2593 ar_default="ar"
2594 cc_default="gcc"
2595 host_cc_default="gcc"
2596 x86asmexe_default="nasm"
2597 ln_s="ln -s -f"
2598 nm_default="nm -g"
2599 pkg_config_default=pkg-config
2600 ranlib="ranlib"
2601 strip="strip"
2602 version_script='--version-script'
2603
2604 # machine
2605 arch_default=$(uname -m)
2606 cpu="generic"
2607 intrinsics="none"
2608
2609 # OS
2610 target_os_default=$(tolower $(uname -s))
2611 host_os=$target_os_default
2612
2613 # configurable options
2614 enable $EXAMPLE_LIST $LIBRARY_LIST $PROGRAM_LIST
2615
2616 enable asm
2617 enable debug
2618 enable doc
2619 enable faan faandct faanidct
2620 enable optimizations
2621 enable safe_bitstream_reader
2622 enable static
2623 enable swscale_alpha
2624 enable valgrind_backtrace
2625
2626 # By default, enable only those hwaccels that have no external dependencies.
2627 enable d3d11va dxva2 vda vdpau
2628
2629 # internal components are enabled by default
2630 enable $EXTRALIBS_LIST
2631
2632 # Avoid external, non-system, libraries getting enabled by dependency resolution
2633 disable $EXTERNAL_LIBRARY_LIST
2634
2635 # build settings
2636 SHFLAGS='-shared -Wl,-soname,$$(@F)'
2637 LIBPREF="lib"
2638 LIBSUF=".a"
2639 LIBNAME='$(LIBPREF)$(NAME)$(LIBSUF)'
2640 SLIBPREF="lib"
2641 SLIBSUF=".so"
2642 SLIBNAME='$(SLIBPREF)$(NAME)$(SLIBSUF)'
2643 SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
2644 SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
2645 LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
2646 SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
2647 SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
2648 VERSION_SCRIPT_POSTPROCESS_CMD="cat"
2649
2650 asflags_filter=echo
2651 cflags_filter=echo
2652 ldflags_filter=echo
2653
2654 AS_C='-c'
2655 AS_O='-o $@'
2656 CC_C='-c'
2657 CC_E='-E -o $@'
2658 CC_O='-o $@'
2659 OBJCC_C='-c'
2660 OBJCC_E='-E -o $@'
2661 OBJCC_O='-o $@'
2662 X86ASM_O='-o $@'
2663 LD_O='-o $@'
2664 LD_LIB='-l%'
2665 LD_PATH='-L'
2666 HOSTCC_C='-c'
2667 HOSTCC_E='-E -o $@'
2668 HOSTCC_O='-o $@'
2669 HOSTLD_O='-o $@'
2670
2671 host_extralibs='-lm'
2672 host_cflags_filter=echo
2673 host_ldflags_filter=echo
2674
2675 target_path='$(CURDIR)'
2676
2677 # since the object filename is not given with the -MM flag, the compiler
2678 # is only able to print the basename, and we must add the path ourselves
2679 DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
2680 DEPFLAGS='-MM'
2681
2682 mkdir -p avbuild
2683
2684 # find source path
2685 if test -f configure; then
2686     source_path=.
2687 else
2688     source_path=$(cd $(dirname "$0"); pwd)
2689     echo "$source_path" | grep -q '[[:blank:]]' &&
2690         die "Out of tree builds are impossible with whitespace in source path."
2691     test -e "$source_path/config.h" &&
2692         die "Out of tree builds are impossible with config.h in source dir."
2693 fi
2694
2695 for v in "$@"; do
2696     r=${v#*=}
2697     l=${v%"$r"}
2698     r=$(sh_quote "$r")
2699     LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
2700 done
2701
2702 find_things(){
2703     thing=$1
2704     pattern=$2
2705     file=$source_path/$3
2706     sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
2707 }
2708
2709 ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
2710 DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
2711 HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
2712 PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
2713 MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
2714 DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
2715 OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
2716 INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
2717 FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
2718
2719 find_things_extern(){
2720     thing=$1
2721     pattern=$2
2722     file=$source_path/$3
2723     sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
2724 }
2725
2726 BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
2727 PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
2728
2729 AVCODEC_COMPONENTS_LIST="
2730     $BSF_LIST
2731     $DECODER_LIST
2732     $ENCODER_LIST
2733     $HWACCEL_LIST
2734     $PARSER_LIST
2735 "
2736
2737 AVDEVICE_COMPONENTS_LIST="
2738     $INDEV_LIST
2739     $OUTDEV_LIST
2740 "
2741
2742 AVFILTER_COMPONENTS_LIST="
2743     $FILTER_LIST
2744 "
2745
2746 AVFORMAT_COMPONENTS_LIST="
2747     $DEMUXER_LIST
2748     $MUXER_LIST
2749     $PROTOCOL_LIST
2750 "
2751
2752 ALL_COMPONENTS="
2753     $AVCODEC_COMPONENTS_LIST
2754     $AVDEVICE_COMPONENTS_LIST
2755     $AVFILTER_COMPONENTS_LIST
2756     $AVFORMAT_COMPONENTS_LIST
2757 "
2758
2759 for n in $COMPONENT_LIST; do
2760     v=$(toupper ${n%s})_LIST
2761     eval enable \$$v
2762     eval ${n}_if_any="\$$v"
2763 done
2764
2765 enable $ARCH_EXT_LIST
2766
2767 die_unknown(){
2768     echo "Unknown option \"$1\"."
2769     echo "See $0 --help for available options."
2770     exit 1
2771 }
2772
2773 print_3_columns() {
2774     printf "%-25s %-25s %-25s\n" $(cat | tr ' ' '\n' | sort)
2775 }
2776
2777 show_list() {
2778     suffix=_$1
2779     shift
2780     echo $* | sed s/$suffix//g | print_3_columns
2781     exit 0
2782 }
2783
2784 rand_list(){
2785     IFS=', '
2786     set -- $*
2787     unset IFS
2788     for thing; do
2789         comp=${thing%:*}
2790         prob=${thing#$comp}
2791         prob=${prob#:}
2792         is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
2793         echo "prob ${prob:-0.5}"
2794         printf '%s\n' $comp
2795     done
2796 }
2797
2798 do_random(){
2799     action=$1
2800     shift
2801     random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
2802     $action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
2803 }
2804
2805 for opt do
2806     optval="${opt#*=}"
2807     case "$opt" in
2808         --extra-ldflags=*)
2809             add_ldflags $optval
2810         ;;
2811         --extra-ldexeflags=*)
2812             add_ldexeflags $optval
2813         ;;
2814         --extra-ldsoflags=*)
2815             add_ldsoflags $optval
2816         ;;
2817         --extra-libs=*)
2818             add_extralibs $optval
2819         ;;
2820         --disable-devices)
2821             disable $INDEV_LIST $OUTDEV_LIST
2822         ;;
2823         --enable-debug=*)
2824             debuglevel="$optval"
2825         ;;
2826         --disable-programs)
2827             disable $PROGRAM_LIST
2828         ;;
2829         --disable-everything)
2830             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2831         ;;
2832         --disable-all)
2833             map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
2834             disable $LIBRARY_LIST $PROGRAM_LIST doc
2835         ;;
2836         --enable-random|--disable-random)
2837             action=${opt%%-random}
2838             do_random ${action#--} $COMPONENT_LIST
2839         ;;
2840         --enable-random=*|--disable-random=*)
2841             action=${opt%%-random=*}
2842             do_random ${action#--} $optval
2843         ;;
2844         --enable-*=*|--disable-*=*)
2845             eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
2846             is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
2847             eval list=\$$(toupper $thing)_LIST
2848             name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
2849             $action $(filter "$name" $list)
2850         ;;
2851         --enable-avserver|--disable-avserver*)
2852             warn "avserver has been removed, the ${opt} option is only"\
2853                  "provided for compatibility and will be removed in the future"
2854         ;;
2855         --enable-yasm|--disable-yasm)
2856             warn "The ${opt} option is only provided for compatibility and will be\n"\
2857                  "removed in the future. Use --enable-x86asm / --disable-x86asm instead."
2858             test $opt = --enable-yasm && x86asm=yes || x86asm=no
2859         ;;
2860         --enable-?*|--disable-?*)
2861             eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
2862             if is_in $option $COMPONENT_LIST; then
2863                 test $action = disable && action=unset
2864                 eval $action \$$(toupper ${option%s})_LIST
2865             elif is_in $option $CMDLINE_SELECT; then
2866                 $action $option
2867             else
2868                 die_unknown $opt
2869             fi
2870         ;;
2871         --list-*)
2872             NAME="${opt#--list-}"
2873             is_in $NAME $COMPONENT_LIST || die_unknown $opt
2874             NAME=${NAME%s}
2875             eval show_list $NAME \$$(toupper $NAME)_LIST
2876         ;;
2877         --help|-h) show_help
2878         ;;
2879         --quiet|-q) quiet=yes
2880         ;;
2881         *)
2882             optname="${opt%%=*}"
2883             optname="${optname#--}"
2884             optname=$(echo "$optname" | sed 's/-/_/g')
2885             if is_in $optname $CMDLINE_SET; then
2886                 eval $optname='$optval'
2887             elif is_in $optname $CMDLINE_APPEND; then
2888                 append $optname "$optval"
2889             else
2890                 die_unknown $opt
2891             fi
2892         ;;
2893     esac
2894 done
2895
2896 for e in $env; do
2897     eval "export $e"
2898 done
2899
2900 disabled logging && logfile=/dev/null
2901
2902 # Die early if licensing-related configure options are incompatible.
2903 die_license_disabled() {
2904     enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
2905 }
2906
2907 map "die_license_disabled gpl"      $EXTERNAL_LIBRARY_GPL_LIST
2908 map "die_license_disabled nonfree"  $EXTERNAL_LIBRARY_NONFREE_LIST $HWACCEL_LIBRARY_NONFREE_LIST
2909 map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST
2910
2911 enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2912
2913 enabled_all gnutls openssl &&
2914     die "GnuTLS and OpenSSL must not be enabled at the same time."
2915
2916 # Disable all the library-specific components if the library itself
2917 # is disabled, see AVCODEC_LIST and following _LIST variables.
2918
2919 disable_components(){
2920     disabled ${1} && disable $(
2921         eval components="\$$(toupper ${1})_COMPONENTS"
2922         map 'eval echo \${$(toupper ${v%s})_LIST}' $components
2923     )
2924 }
2925
2926 map 'disable_components $v' $LIBRARY_LIST
2927
2928 echo "# $0 $LIBAV_CONFIGURATION" > $logfile
2929 set >> $logfile
2930
2931 case "$toolchain" in
2932     *-asan)
2933         cc_default="${toolchain%-asan}"
2934         add_cflags  -fsanitize=address
2935         add_ldflags -fsanitize=address
2936     ;;
2937     *-msan)
2938         cc_default="${toolchain%-msan}"
2939         add_cflags  -fsanitize=memory -fsanitize-memory-track-origins
2940         add_ldflags -fsanitize=memory
2941     ;;
2942     *-tsan)
2943         cc_default="${toolchain%-tsan}"
2944         add_cflags  -fsanitize=thread -fPIE
2945         add_ldflags -fsanitize=thread -pie
2946         case "$toolchain" in
2947             gcc-tsan)
2948                 add_cflags  -fPIC
2949                 add_ldflags -fPIC
2950                 ;;
2951         esac
2952     ;;
2953     *-usan)
2954         cc_default="${toolchain%-usan}"
2955         add_cflags  -fsanitize=undefined
2956         add_ldflags -fsanitize=undefined
2957         case "$toolchain" in
2958             clang-usan)
2959                 add_cflags -O1
2960                 ;;
2961         esac
2962     ;;
2963     valgrind-*)
2964         target_exec_default="valgrind"
2965         case "$toolchain" in
2966             valgrind-massif)
2967                 target_exec_args="--alloc-fn=av_malloc --alloc-fn=av_mallocz"
2968                 ;;
2969             valgrind-memcheck)
2970                 target_exec_args="--track-origins=yes --leak-check=full"
2971                 ;;
2972         esac
2973     ;;
2974     msvc)
2975         # Check whether the current MSVC version needs the C99 converter.
2976         # From MSVC 2013 (compiler major version 18) onwards, it does actually
2977         # support enough of C99 to build libav. Default to the new
2978         # behaviour if the regexp was unable to match anything, since this
2979         # successfully parses the version number of existing supported
2980         # versions that require the converter (MSVC 2010 and 2012).
2981         cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
2982         if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
2983             cc_default="cl"
2984         else
2985             cc_default="c99wrap cl"
2986         fi
2987         ld_default="$source_path/compat/windows/mslink"
2988         nm_default="dumpbin -symbols"
2989         ar_default="lib"
2990         case "$arch" in
2991         arm*)
2992             as_default="armasm"
2993             ;;
2994         esac
2995         target_os_default="win32"
2996         # Use a relative path for TMPDIR. This makes sure all the
2997         # ffconf temp files are written with a relative path, avoiding
2998         # issues with msys/win32 path conversion for MSVC parameters
2999         # such as -Fo<file> or -out:<file>.
3000         TMPDIR=.
3001     ;;
3002     icl)
3003         cc_default="icl"
3004         ld_default="xilink"
3005         nm_default="dumpbin -symbols"
3006         ar_default="xilib"
3007         target_os_default="win32"
3008         TMPDIR=.
3009     ;;
3010     gcov)
3011         add_cflags  -fprofile-arcs -ftest-coverage
3012         add_ldflags -fprofile-arcs -ftest-coverage
3013     ;;
3014     llvm-cov)
3015         add_cflags -fprofile-arcs -ftest-coverage
3016         add_ldflags --coverage
3017     ;;
3018     hardened)
3019         add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
3020         add_cflags   -fno-strict-overflow -fstack-protector-all
3021         add_ldflags  -Wl,-z,relro -Wl,-z,now
3022     ;;
3023     ?*)
3024         die "Unknown toolchain $toolchain"
3025     ;;
3026 esac
3027
3028 test -n "$cross_prefix" && enable cross_compile
3029
3030 if enabled cross_compile; then
3031     test -n "$arch" && test -n "$target_os" ||
3032         die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
3033 fi
3034
3035 ar_default="${cross_prefix}${ar_default}"
3036 cc_default="${cross_prefix}${cc_default}"
3037 objcc_default="${cross_prefix}${objcc_default}"
3038 x86asmexe_default="${cross_prefix}${x86asmexe_default}"
3039 nm_default="${cross_prefix}${nm_default}"
3040 pkg_config_default="${cross_prefix}${pkg_config_default}"
3041 ranlib="${cross_prefix}${ranlib}"
3042 strip="${cross_prefix}${strip}"
3043
3044 sysinclude_default="${sysroot}/usr/include"
3045
3046 set_default arch cc pkg_config sysinclude target_exec target_os x86asmexe
3047 enabled cross_compile || host_cc_default=$cc
3048 set_default host_cc
3049
3050 if ! $pkg_config --version >/dev/null 2>&1; then
3051     warn "$pkg_config not found, library detection may fail."
3052     pkg_config=false
3053 fi
3054
3055 exesuf() {
3056     case $1 in
3057         mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
3058     esac
3059 }
3060
3061 EXESUF=$(exesuf $target_os)
3062 HOSTEXESUF=$(exesuf $host_os)
3063
3064 # set temporary file name
3065 : ${TMPDIR:=$TEMPDIR}
3066 : ${TMPDIR:=$TMP}
3067 : ${TMPDIR:=/tmp}
3068
3069 if ! check_cmd mktemp -u XXXXXX; then
3070     # simple replacement for missing mktemp
3071     # NOT SAFE FOR GENERAL USE
3072     mktemp(){
3073         tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
3074         echo "$tmpname"
3075         mkdir "$tmpname"
3076     }
3077 fi
3078
3079 AVTMPDIR=$(mktemp -d "${TMPDIR}/avconf.XXXXXXXX" 2> /dev/null) ||
3080     die "Unable to create temporary directory in $TMPDIR."
3081
3082 tmpfile(){
3083     tmp="${AVTMPDIR}/test"$2
3084     (set -C; exec > $tmp) 2> /dev/null ||
3085         die "Unable to create temporary file in $AVTMPDIR."
3086     eval $1=$tmp
3087 }
3088
3089 trap 'rm -rf -- "$AVTMPDIR"' EXIT
3090 trap 'exit 2' INT
3091
3092 tmpfile TMPASM .asm
3093 tmpfile TMPC   .c
3094 tmpfile TMPE   $EXESUF
3095 tmpfile TMPH   .h
3096 tmpfile TMPO   .o
3097 tmpfile TMPS   .S
3098 tmpfile TMPSH  .sh
3099 tmpfile TMPV   .ver
3100
3101 unset -f mktemp
3102
3103 chmod +x $TMPE
3104
3105 # make sure we can execute files in $TMPDIR
3106 cat > $TMPSH 2>> $logfile <<EOF
3107 #! /bin/sh
3108 EOF
3109 chmod +x $TMPSH >> $logfile 2>&1
3110 if ! $TMPSH >> $logfile 2>&1; then
3111     cat <<EOF
3112 Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
3113 variable to another directory and make sure that it is not mounted noexec.
3114 EOF
3115     die "Sanity test failed."
3116 fi
3117
3118 armasm_flags(){
3119     for flag; do
3120         case $flag in
3121             # Filter out MSVC cl.exe options from cflags that shouldn't
3122             # be passed to gas-preprocessor
3123             -M[TD]*)                                            ;;
3124             *)                  echo $flag                      ;;
3125         esac
3126    done
3127 }
3128
3129 ccc_flags(){
3130     for flag; do
3131         case $flag in
3132             -std=c99)           echo -c99                       ;;
3133             -mcpu=*)            echo -arch ${flag#*=}           ;;
3134             -mieee)             echo -ieee                      ;;
3135             -O*|-fast)          echo $flag                      ;;
3136             -fno-math-errno)    echo -assume nomath_errno       ;;
3137             -g)                 echo -g3                        ;;
3138             -Wall)              echo -msg_enable level2         ;;
3139             -Wno-pointer-sign)  echo -msg_disable ptrmismatch1  ;;
3140             -Wl,*)              echo $flag                      ;;
3141             -f*|-W*)                                            ;;
3142             *)                  echo $flag                      ;;
3143         esac
3144    done
3145 }
3146
3147 cparser_flags(){
3148     for flag; do
3149         case $flag in
3150             -Wno-switch)             echo -Wno-switch-enum ;;
3151             -Wno-format-zero-length) ;;
3152             -Wdisabled-optimization) ;;
3153             -Wno-pointer-sign)       echo -Wno-other ;;
3154             *)                       echo $flag ;;
3155         esac
3156     done
3157 }
3158
3159 msvc_common_flags(){
3160     for flag; do
3161         case $flag in
3162             # In addition to specifying certain flags under the compiler
3163             # specific filters, they must be specified here as well or else the
3164             # generic catch all at the bottom will print the original flag.
3165             -Wall)                ;;
3166             -Wextra)              ;;
3167             -std=c99)             ;;
3168             # Common flags
3169             -fomit-frame-pointer) ;;
3170             -g)                   echo -Z7 ;;
3171             -fno-math-errno)      ;;
3172             -fno-common)          ;;
3173             -fno-signed-zeros)    ;;
3174             -fPIC)                ;;
3175             -mthumb)              ;;
3176             -march=*)             ;;
3177             -lz)                  echo zlib.lib ;;
3178             -lx264)               echo libx264.lib ;;
3179             -l*)                  echo ${flag#-l}.lib ;;
3180             -L*)                  echo -libpath:${flag#-L} ;;
3181             *)                    echo $flag ;;
3182         esac
3183     done
3184 }
3185
3186 msvc_flags(){
3187     msvc_common_flags "$@"
3188     for flag; do
3189         case $flag in
3190             -Wall)                echo -W3 -wd4018 -wd4146 -wd4244 -wd4305     \
3191                                        -wd4554 ;;
3192             -Wextra)              echo -W4 -wd4244 -wd4127 -wd4018 -wd4389     \
3193                                        -wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
3194                                        -wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
3195                                        -wd4273 -wd4554 -wd4701 -wd4703 ;;
3196         esac
3197     done
3198 }
3199
3200 icl_flags(){
3201     msvc_common_flags "$@"
3202     for flag; do
3203         case $flag in
3204             # Despite what Intel's documentation says -Wall, which is supported
3205             # on Windows, does enable remarks so disable them here.
3206             -Wall)                echo $flag -Qdiag-disable:remark ;;
3207             -std=c99)             echo -Qstd=c99 ;;
3208         esac
3209     done
3210 }
3211
3212 pgi_flags(){
3213     for flag; do
3214         case $flag in
3215             -flto)                echo -Mipa=fast,libopt,libinline,vestigial ;;
3216             -fomit-frame-pointer) echo -Mnoframe ;;
3217             -g)                   echo -gopt ;;
3218             *)                    echo $flag ;;
3219         esac
3220     done
3221 }
3222
3223 suncc_flags(){
3224     for flag; do
3225         case $flag in
3226             -march=*|-mcpu=*)
3227                 case "${flag#*=}" in
3228                     native)                   echo -xtarget=native       ;;
3229                     v9|niagara)               echo -xarch=sparc          ;;
3230                     ultrasparc)               echo -xarch=sparcvis       ;;
3231                     ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
3232                     i586|pentium)             echo -xchip=pentium        ;;
3233                     i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
3234                     pentium3*|c3-2)           echo -xtarget=pentium3     ;;
3235                     pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
3236                     pentium4*)          echo -xtarget=pentium4           ;;
3237                     prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
3238                     *-sse3)             echo -xarch=sse3                 ;;
3239                     core2)              echo -xarch=ssse3 -xchip=core2   ;;
3240                     corei7)           echo -xarch=sse4_2 -xchip=nehalem  ;;
3241                     corei7-avx)       echo -xarch=avx -xchip=sandybridge ;;
3242                     amdfam10|barcelona|bdver*) echo -xarch=sse4_1        ;;
3243                     athlon-4|athlon-[mx]p)     echo -xarch=ssea          ;;
3244                     k8|opteron|athlon64|athlon-fx)
3245                                                echo -xarch=sse2a         ;;
3246                     athlon*)                   echo -xarch=pentium_proa  ;;
3247                 esac
3248                 ;;
3249             -std=c99)             echo -xc99              ;;
3250             -fomit-frame-pointer) echo -xregs=frameptr    ;;
3251             -fPIC)                echo -KPIC -xcode=pic32 ;;
3252             -W*,*)                echo $flag              ;;
3253             -f*-*|-W*|-mimpure-text)                      ;;
3254             -shared)              echo -G                 ;;
3255             *)                    echo $flag              ;;
3256         esac
3257     done
3258 }
3259
3260 tms470_flags(){
3261     for flag; do
3262         case $flag in
3263             -march=*|-mcpu=*)
3264                 case "${flag#*=}" in
3265                     armv7-a|cortex-a*)      echo -mv=7a8 ;;
3266                     armv7-r|cortex-r*)      echo -mv=7r4 ;;
3267                     armv7-m|cortex-m*)      echo -mv=7m3 ;;
3268                     armv6*|arm11*)          echo -mv=6   ;;
3269                     armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
3270                                             echo -mv=5e  ;;
3271                     armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
3272                 esac
3273                 ;;
3274             -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
3275             -mfpu=vfp)      echo --float_support=vfpv2        ;;
3276             -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
3277             -mfpu=vfpv3-d16) echo --float_support=vfpv3d16    ;;
3278             -msoft-float)   echo --float_support=vfplib       ;;
3279             -O[0-3]|-mf=*)  echo $flag                        ;;
3280             -g)             echo -g -mn                       ;;
3281             -pds=*)         echo $flag                        ;;
3282             -D*|-I*)        echo $flag                        ;;
3283             --gcc|--abi=*)  echo $flag                        ;;
3284             -me)            echo $flag                        ;;
3285         esac
3286     done
3287 }
3288
3289 probe_cc(){
3290     pfx=$1
3291     _cc=$2
3292
3293     unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
3294     unset _ld_o _ldflags _ld_lib _ld_path
3295     unset _depflags _DEPCMD _DEPFLAGS
3296     _flags_filter=echo
3297
3298     if $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
3299         _type=llvm_gcc
3300         gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
3301         _ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
3302         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3303         _cflags_speed='-O3'
3304         _cflags_size='-Os'
3305     elif $_cc -v 2>&1 | grep -qi ^gcc; then
3306         _type=gcc
3307         gcc_version=$($_cc --version | head -n1)
3308         gcc_basever=$($_cc -dumpversion)
3309         gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
3310         gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
3311         _ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
3312         if ! $_cc -dumpversion | grep -q '^2\.'; then
3313             _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3314         fi
3315         _cflags_speed='-O3'
3316         _cflags_size='-Os'
3317     elif $_cc --version 2>/dev/null | grep -q ^icc; then
3318         _type=icc
3319         _ident=$($_cc --version | head -n1)
3320         _depflags='-MMD'
3321         _cflags_speed='-O3'
3322         _cflags_size='-Os'
3323         _cflags_noopt='-O1'
3324     elif $_cc -v 2>&1 | grep -q xlc; then
3325         _type=xlc
3326         _ident=$($_cc -qversion 2>/dev/null | head -n1)
3327         _cflags_speed='-O5'
3328         _cflags_size='-O5 -qcompact'
3329     elif $_cc -V 2>/dev/null | grep -q Compaq; then
3330         _type=ccc
3331         _ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
3332         _DEPFLAGS='-M'
3333         _cflags_speed='-fast'
3334         _cflags_size='-O1'
3335         _flags_filter=ccc_flags
3336     elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
3337         test -d "$sysroot" || die "No valid sysroot specified."
3338         _type=armcc
3339         _ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
3340         armcc_conf="$PWD/armcc.conf"
3341         $_cc --arm_linux_configure                 \
3342              --arm_linux_config_file="$armcc_conf" \
3343              --configure_sysroot="$sysroot"        \
3344              --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
3345              die "Error creating armcc configuration file."
3346         $_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
3347         _flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
3348         as_default="${cross_prefix}gcc"
3349         _depflags='-MMD'
3350         _cflags_speed='-O3'
3351         _cflags_size='-Os'
3352     elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
3353         _type=tms470
3354         _ident=$($_cc -version | head -n1 | tr -s ' ')
3355         _flags='--gcc --abi=eabi -me'
3356         _cc_e='-ppl -fe=$@'
3357         _cc_o='-fe=$@'
3358         _depflags='-ppa -ppd=$(@:.o=.d)'
3359         _cflags_speed='-O3 -mf=5'
3360         _cflags_size='-O3 -mf=2'
3361         _flags_filter=tms470_flags
3362     elif $_cc -v 2>&1 | grep -q clang; then
3363         _type=clang
3364         _ident=$($_cc --version 2>/dev/null | head -n1)
3365         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3366         _cflags_speed='-O3'
3367         _cflags_size='-Os'
3368     elif $_cc -V 2>&1 | grep -q Sun; then
3369         _type=suncc
3370         _ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
3371         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
3372         _DEPFLAGS='-xM1 -xc99'
3373         _ldflags='-std=c99'
3374         _cflags_speed='-O5'
3375         _cflags_size='-O5 -xspace'
3376         _flags_filter=suncc_flags
3377     elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
3378         _type=pathscale
3379         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3380         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3381         _cflags_speed='-O2'
3382         _cflags_size='-Os'
3383         _flags_filter='filter_out -Wdisabled-optimization'
3384     elif $_cc -v 2>&1 | grep -q Open64; then
3385         _type=open64
3386         _ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
3387         _depflags='-MMD -MF $(@:.o=.d) -MT $@'
3388         _cflags_speed='-O2'
3389         _cflags_size='-Os'
3390         _flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
3391     elif $_cc -V 2>&1 | grep -q Portland; then
3392         _type=pgi
3393         _ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
3394         opt_common='-alias=ansi -Mdse -Mlre -Mpre'
3395         _cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
3396         _cflags_size="-O2 -Munroll=c:1 $opt_common"
3397         _cflags_noopt="-O1"
3398         _flags_filter=pgi_flags
3399     elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
3400         _type=armasm
3401         _ident=$($_cc | head -n1)
3402         # 4509: "This form of conditional instruction is deprecated"
3403         _flags="-nologo -ignore 4509"
3404         _flags_filter=armasm_flags
3405     elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
3406         _type=msvc
3407         _ident=$($_cc 2>&1 | head -n1)
3408         _DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
3409         _DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
3410         _cflags_speed="-O2"
3411         _cflags_size="-O1"
3412         _cflags_noopt="-O1"
3413         if $_cc -nologo- 2>&1 | grep -q Linker; then
3414             _ld_o='-out:$@'
3415         else
3416             _ld_o='-Fe$@'
3417         fi
3418         _cc_o='-Fo$@'
3419         _cc_e='-P -Fi$@'
3420         _flags_filter=msvc_flags
3421         _ld_lib='lib%.a'
3422         _ld_path='-libpath:'
3423         _flags='-nologo'
3424     elif $_cc 2>&1 | grep -q Intel; then
3425         _type=icl
3426         _ident=$($_cc 2>&1 | head -n1)
3427         _depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
3428         # Not only is O3 broken on 13.x+ but it is slower on all previous
3429         # versions (tested) as well.
3430         _cflags_speed="-O2"
3431         _cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
3432         if $_cc 2>&1 | grep -q Linker; then
3433             _ld_o='-out:$@'
3434         else
3435             _ld_o='-Fe$@'
3436         fi
3437         _cc_o='-Fo$@'
3438         _cc_e='-P'
3439         _flags_filter=icl_flags
3440         _ld_lib='lib%.a'
3441         _ld_path='-libpath:'
3442         # -Qdiag-error to make icl error when seeing certain unknown arguments
3443         _flags='-nologo -Qdiag-error:4044,10157'
3444         # -Qvec- -Qsimd- to prevent miscompilation, -GS for consistency
3445         # with MSVC which enables it by default.
3446         _cflags='-Qms0 -Qvec- -Qsimd- -GS'
3447     elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
3448         # lld can emulate multiple different linkers; in ms link.exe mode,
3449         # the -? parameter gives the help output which contains an identifyable
3450         # string, while it gives an error in other modes.
3451         _type=lld-link
3452         # The link.exe mode doesn't have a switch for getting the version,
3453         # but we can force it back to gnu mode and get the version from there.
3454         _ident=$($_cc -flavor gnu --version 2>/dev/null)
3455         _ld_o='-out:$@'
3456         _flags_filter=msvc_flags
3457         _ld_lib='lib%.a'
3458         _ld_path='-libpath:'
3459     elif $_cc --version 2>/dev/null | grep -q ^cparser; then
3460         _type=cparser
3461         _ident=$($_cc --version | head -n1)
3462         _depflags='-MMD'
3463         _cflags_speed='-O4'
3464         _cflags_size='-O2'
3465         _flags_filter=cparser_flags
3466     fi
3467
3468     eval ${pfx}_type=\$_type
3469     eval ${pfx}_ident=\$_ident
3470 }
3471
3472 set_ccvars(){
3473     eval ${1}_C=\${_cc_c-\${${1}_C}}
3474     eval ${1}_E=\${_cc_e-\${${1}_E}}
3475     eval ${1}_O=\${_cc_o-\${${1}_O}}
3476
3477     if [ -n "$_depflags" ]; then
3478         eval ${1}_DEPFLAGS=\$_depflags
3479     else
3480         eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
3481         eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
3482         eval DEP${1}FLAGS=\$_flags
3483     fi
3484 }
3485
3486 probe_cc cc "$cc"
3487 cflags_filter=$_flags_filter
3488 cflags_speed=$_cflags_speed
3489 cflags_size=$_cflags_size
3490 cflags_noopt=$_cflags_noopt
3491 add_cflags $_flags $_cflags
3492 cc_ldflags=$_ldflags
3493 set_ccvars CC
3494
3495 probe_cc hostcc "$host_cc"
3496 host_cflags_filter=$_flags_filter
3497 host_cflags_speed=$_cflags_speed
3498 add_host_cflags  $_flags $_cflags
3499 set_ccvars HOSTCC
3500
3501 test -n "$cc_type" && enable $cc_type ||
3502     warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
3503
3504 : ${as_default:=$cc}
3505 : ${objcc_default:=$cc}
3506 : ${dep_cc_default:=$cc}
3507 : ${ld_default:=$cc}
3508 : ${host_ld_default:=$host_cc}
3509 set_default ar as objcc dep_cc ld host_ld
3510
3511 probe_cc as "$as"
3512 asflags_filter=$_flags_filter
3513 add_asflags $_flags $_cflags
3514 set_ccvars AS
3515
3516 probe_cc objcc "$objcc"
3517 objcflags_filter=$_flags_filter
3518 add_objcflags $_flags $_cflags
3519 set_ccvars OBJC
3520
3521 probe_cc ld "$ld"
3522 ldflags_filter=$_flags_filter
3523 add_ldflags $_flags $_ldflags
3524 test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
3525 LD_O=${_ld_o-$LD_O}
3526 LD_LIB=${_ld_lib-$LD_LIB}
3527 LD_PATH=${_ld_path-$LD_PATH}
3528
3529 probe_cc hostld "$host_ld"
3530 host_ldflags_filter=$_flags_filter
3531 add_host_ldflags $_flags $_ldflags
3532 HOSTLD_O=${_ld_o-$HOSTLD_O}
3533
3534 if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
3535     probe_cc depcc "$dep_cc"
3536     CCDEP=${_DEPCMD:-$DEPCMD}
3537     CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
3538     DEPCCFLAGS=$_flags
3539 fi
3540
3541 if $ar 2>&1 | grep -q Microsoft; then
3542     arflags="-nologo"
3543     ar_o='-out:$@'
3544 elif $ar 2>&1 | grep -q 'Texas Instruments'; then
3545     arflags="rq"
3546     ar_o='$@'
3547 elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
3548     arflags='-Xany -r -c'
3549     ar_o='$@'
3550 else
3551     arflags="rc"
3552     ar_o='$@'
3553 fi
3554
3555 add_cflags $extra_cflags
3556 add_objcflags $extra_objcflags
3557 add_asflags $extra_cflags
3558
3559 if test -n "$sysroot"; then
3560     case "$cc_type" in
3561         gcc|llvm_gcc|clang)
3562             add_cppflags --sysroot="$sysroot"
3563             add_ldflags --sysroot="$sysroot"
3564         ;;
3565         tms470)
3566             add_cppflags -I"$sysinclude"
3567             add_ldflags  --sysroot="$sysroot"
3568         ;;
3569     esac
3570 fi
3571
3572 if test "$cpu" = host; then
3573     enabled cross_compile &&
3574         die "--cpu=host makes no sense when cross-compiling."
3575
3576     case "$cc_type" in
3577         gcc|llvm_gcc)
3578             check_native(){
3579                 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
3580                 sed -n "/cc1.*$1=/{
3581                             s/.*$1=\\([^ ]*\\).*/\\1/
3582                             p
3583                             q
3584                         }" $TMPE
3585             }
3586             cpu=$(check_native -march || check_native -mcpu)
3587         ;;
3588     esac
3589
3590     test "${cpu:-host}" = host &&
3591         die "--cpu=host not supported with compiler $cc"
3592 fi
3593
3594 # Deal with common $arch aliases
3595 case "$arch" in
3596     aarch64|arm64)
3597         arch="aarch64"
3598     ;;
3599     arm*)
3600         arch="arm"
3601     ;;
3602     mips*|IP*)
3603         case "$arch" in
3604         *el)
3605             add_cppflags -EL
3606             add_ldflags -EL
3607         ;;
3608         *eb)
3609             add_cppflags -EB
3610             add_ldflags -EB
3611         ;;
3612         esac
3613         arch="mips"
3614     ;;
3615     parisc*|hppa*)
3616         arch="parisc"
3617     ;;
3618     "Power Macintosh"|ppc*|powerpc*)
3619         arch="ppc"
3620     ;;
3621     s390|s390x)
3622         arch="s390"
3623     ;;
3624     sh4|sh)
3625         arch="sh4"
3626     ;;
3627     sun4u|sparc*)
3628         arch="sparc"
3629     ;;
3630     tilegx|tile-gx)
3631         arch="tilegx"
3632     ;;
3633     i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
3634         arch="x86"
3635     ;;
3636 esac
3637
3638 is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
3639 enable $arch
3640
3641 # Add processor-specific flags
3642 if enabled aarch64; then
3643
3644     case $cpu in
3645         armv*)
3646             cpuflags="-march=$cpu"
3647         ;;
3648         *)
3649             cpuflags="-mcpu=$cpu"
3650         ;;
3651     esac
3652
3653 elif enabled alpha; then
3654
3655     cpuflags="-mcpu=$cpu"
3656
3657 elif enabled arm; then
3658
3659     check_arm_arch() {
3660         check_cpp_condition stddef.h \
3661             "defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
3662             $cpuflags
3663     }
3664
3665     probe_arm_arch() {
3666         if   check_arm_arch 4;        then echo armv4
3667         elif check_arm_arch 4T;       then echo armv4t
3668         elif check_arm_arch 5;        then echo armv5
3669         elif check_arm_arch 5E;       then echo armv5e
3670         elif check_arm_arch 5T;       then echo armv5t
3671         elif check_arm_arch 5TE;      then echo armv5te
3672         elif check_arm_arch 5TEJ;     then echo armv5te
3673         elif check_arm_arch 6;        then echo armv6
3674         elif check_arm_arch 6J;       then echo armv6j
3675         elif check_arm_arch 6K;       then echo armv6k
3676         elif check_arm_arch 6Z;       then echo armv6z
3677         elif check_arm_arch 6ZK;      then echo armv6zk
3678         elif check_arm_arch 6T2;      then echo armv6t2
3679         elif check_arm_arch 7;        then echo armv7
3680         elif check_arm_arch 7A  7_A;  then echo armv7-a
3681         elif check_arm_arch 7S;       then echo armv7-a
3682         elif check_arm_arch 7R  7_R;  then echo armv7-r
3683         elif check_arm_arch 7M  7_M;  then echo armv7-m
3684         elif check_arm_arch 7EM 7E_M; then echo armv7-m
3685         elif check_arm_arch 8A  8_A;  then echo armv8-a
3686         fi
3687     }
3688
3689     [ "$cpu" = generic ] && cpu=$(probe_arm_arch)
3690
3691     case $cpu in
3692         armv*)
3693             cpuflags="-march=$cpu"
3694             subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
3695         ;;
3696         *)
3697             cpuflags="-mcpu=$cpu"
3698             case $cpu in
3699                 cortex-a*)                               subarch=armv7a  ;;
3700                 cortex-r*)                               subarch=armv7r  ;;
3701                 cortex-m*)                 enable thumb; subarch=armv7m  ;;
3702                 arm11*)                                  subarch=armv6   ;;
3703                 arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
3704                 armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
3705                 *)                             subarch=$(probe_arm_arch) ;;
3706             esac
3707         ;;
3708     esac
3709
3710     case "$subarch" in
3711         armv5t*)    enable fast_clz                ;;
3712         armv[6-8]*) enable fast_clz fast_unaligned ;;
3713     esac
3714
3715 elif enabled avr32; then
3716
3717     case $cpu in
3718         ap7[02]0[0-2])
3719             subarch="avr32_ap"
3720             cpuflags="-mpart=$cpu"
3721         ;;
3722         ap)
3723             subarch="avr32_ap"
3724             cpuflags="-march=$cpu"
3725         ;;
3726         uc3[ab]*)
3727             subarch="avr32_uc"
3728             cpuflags="-mcpu=$cpu"
3729         ;;
3730         uc)
3731             subarch="avr32_uc"
3732             cpuflags="-march=$cpu"
3733         ;;
3734     esac
3735
3736 elif enabled bfin; then
3737
3738     cpuflags="-mcpu=$cpu"
3739
3740 elif enabled mips; then
3741
3742     cpuflags="-march=$cpu"
3743
3744 elif enabled ppc; then
3745
3746     disable ldbrx
3747
3748     case $(tolower $cpu) in
3749         601|ppc601|powerpc601)
3750             cpuflags="-mcpu=601"
3751             disable altivec
3752         ;;
3753         603*|ppc603*|powerpc603*)
3754             cpuflags="-mcpu=603"
3755             disable altivec
3756         ;;
3757         604*|ppc604*|powerpc604*)
3758             cpuflags="-mcpu=604"
3759             disable altivec
3760         ;;
3761         g3|75*|ppc75*|powerpc75*)
3762             cpuflags="-mcpu=750"
3763             disable altivec
3764         ;;
3765         g4|745*|ppc745*|powerpc745*)
3766             cpuflags="-mcpu=7450"
3767             disable vsx
3768         ;;
3769         74*|ppc74*|powerpc74*)
3770             cpuflags="-mcpu=7400"
3771             disable vsx
3772         ;;
3773         g5|970|ppc970|powerpc970)
3774             cpuflags="-mcpu=970"
3775             disable vsx
3776         ;;
3777         power[3-6]*)
3778             cpuflags="-mcpu=$cpu"
3779             disable vsx
3780         ;;
3781         power[7-8]*)
3782             cpuflags="-mcpu=$cpu"
3783             enable ldbrx
3784         ;;
3785         cell)
3786             cpuflags="-mcpu=cell"
3787             enable ldbrx
3788             disable vsx
3789         ;;
3790         e500mc)
3791             cpuflags="-mcpu=e500mc"
3792             disable altivec
3793         ;;
3794         e500v2)
3795             cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
3796             disable altivec
3797             disable dcbzl
3798         ;;
3799         e500)
3800             cpuflags="-mcpu=8540 -mhard-float"
3801             disable altivec
3802             disable dcbzl
3803         ;;
3804     esac
3805
3806 elif enabled sparc; then
3807
3808     case $cpu in
3809         cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
3810             cpuflags="-mcpu=$cpu"
3811         ;;
3812         ultrasparc*|niagara[234])
3813             cpuflags="-mcpu=$cpu"
3814         ;;
3815     esac
3816
3817 elif enabled x86; then
3818
3819     case $cpu in
3820         i[345]86|pentium)
3821             cpuflags="-march=$cpu"
3822             disable i686
3823             disable mmx
3824         ;;
3825         # targets that do NOT support nopl and conditional mov (cmov)
3826         pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
3827             cpuflags="-march=$cpu"
3828             disable i686
3829         ;;
3830         # targets that do support nopl and conditional mov (cmov)
3831         i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx|core2|corei7*|amdfam10|barcelona|atom|bdver*)
3832             cpuflags="-march=$cpu"
3833             enable i686
3834             enable fast_cmov
3835         ;;
3836         # targets that do support conditional mov but on which it's slow
3837         pentium4|pentium4m|prescott|nocona)
3838             cpuflags="-march=$cpu"
3839             enable i686
3840             disable fast_cmov
3841         ;;
3842     esac
3843
3844 fi
3845
3846 if [ "$cpu" != generic ]; then
3847     add_cflags  $cpuflags
3848     add_asflags $cpuflags
3849     test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
3850 fi
3851
3852 # compiler sanity check
3853 check_exec <<EOF
3854 int main(void){ return 0; }
3855 EOF
3856 if test "$?" != 0; then
3857     echo "$cc is unable to create an executable file."
3858     if test -z "$cross_prefix" && ! enabled cross_compile ; then
3859         echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
3860         echo "Only do this if you know what cross compiling means."
3861     fi
3862     die "C compiler test failed."
3863 fi
3864
3865 add_cppflags -D_ISOC99_SOURCE
3866
3867 # some compilers silently accept -std=c11, so we also need to check that the
3868 # version macro is defined properly
3869 check_cpp_condition stdlib.h  "__STDC_VERSION__ >= 201112L" -std=c11 &&
3870     add_cflags -std=c11 ||
3871     check_cflags -std=c99
3872
3873 check_cppflags -D_FILE_OFFSET_BITS=64
3874 check_cppflags -D_LARGEFILE_SOURCE
3875
3876 add_host_cppflags -D_ISOC99_SOURCE
3877 check_host_cflags -std=c99
3878 check_host_cflags -Wall
3879 check_host_cflags $host_cflags_speed
3880
3881 check_64bit(){
3882     arch32=$1
3883     arch64=$2
3884     expr=$3
3885     check_code cc "" "int test[2*($expr) - 1]" &&
3886         subarch=$arch64 || subarch=$arch32
3887 }
3888
3889 case "$arch" in
3890     aarch64|alpha|ia64)
3891         spic=$shared
3892     ;;
3893     mips)
3894         check_64bit mips mips64 '_MIPS_SIM > 1'
3895         spic=$shared
3896     ;;
3897     parisc)
3898         check_64bit parisc parisc64 'sizeof(void *) > 4'
3899         spic=$shared
3900     ;;
3901     ppc)
3902         check_64bit ppc ppc64 'sizeof(void *) > 4'
3903         spic=$shared
3904     ;;
3905     s390)
3906         check_64bit s390 s390x 'sizeof(void *) > 4'
3907         spic=$shared
3908     ;;
3909     sparc)
3910         check_64bit sparc sparc64 'sizeof(void *) > 4'
3911         spic=$shared
3912     ;;
3913     x86)
3914         check_64bit x86_32 x86_64 'sizeof(void *) > 4'
3915         if test "$subarch" = "x86_64"; then
3916             spic=$shared
3917         fi
3918     ;;
3919 esac
3920
3921 enable $subarch
3922 enabled spic && enable_weak pic
3923
3924 enabled x86_64 && objformat=elf64 || objformat="elf32"
3925
3926 # OS specific
3927 case $target_os in
3928     aix)
3929         SHFLAGS=-shared
3930         add_cppflags '-I\$(SRC_PATH)/compat/aix'
3931         enabled shared && add_ldflags -Wl,-brtl
3932         ;;
3933     android)
3934         disable symver
3935         enable section_data_rel_ro
3936         SLIB_INSTALL_NAME='$(SLIBNAME)'
3937         SLIB_INSTALL_LINKS=
3938         SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
3939         ;;
3940     haiku)
3941         prefix_default="/boot/common"
3942         network_extralibs="-lnetwork"
3943         host_extralibs=
3944         ;;
3945     sunos)
3946         SHFLAGS='-shared -Wl,-h,$$(@F)'
3947         enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
3948         network_extralibs="-lsocket -lnsl"
3949         # When using suncc to build, the Solaris linker will mark
3950         # an executable with each instruction set encountered by
3951         # the Solaris assembler.  As our libraries contain their own
3952         # guards for processor-specific code, instead suppress
3953         # generation of the HWCAPS ELF section on Solaris x86 only.
3954         enabled_all suncc x86 &&
3955             echo "hwcap_1 = OVERRIDE;" > mapfile &&
3956             add_ldflags -Wl,-M,mapfile
3957         nm_default='nm -P -g'
3958         version_script='-M'
3959         VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
3960         ;;
3961     netbsd)
3962         disable symver
3963         oss_indev_extralibs="-lossaudio"
3964         oss_outdev_extralibs="-lossaudio"
3965         ;;
3966     openbsd|bitrig)
3967         disable symver
3968         SHFLAGS='-shared'
3969         SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
3970         SLIB_INSTALL_LINKS=
3971         oss_indev_extralibs="-lossaudio"
3972         oss_outdev_extralibs="-lossaudio"
3973         ;;
3974     dragonfly)
3975         disable symver
3976         ;;
3977     freebsd)
3978         ;;
3979     bsd/os)
3980         add_extralibs -lpoll -lgnugetopt
3981         ;;
3982     darwin)
3983         enabled ppc && add_asflags -force_cpusubtype_ALL
3984         SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
3985         enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
3986         add_ldflags -Wl,-dynamic,-search_paths_first
3987         check_cflags -Werror=partial-availability
3988         SLIBSUF=".dylib"
3989         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME).$(LIBVERSION)$(SLIBSUF)'
3990         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME).$(LIBMAJOR)$(SLIBSUF)'
3991         enabled x86_64 && objformat="macho64" || objformat="macho32"
3992         enabled_any pic shared ||
3993             { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
3994         check_header dispatch/dispatch.h &&
3995             add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
3996         if test -n "$sysroot"; then
3997             is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
3998             is_in -isysroot $ld $LDFLAGS          || check_ldflags  -isysroot $sysroot
3999         fi
4000         ;;
4001     msys*)
4002         die "Native MSYS builds are discouraged, please use the MINGW environment."
4003         ;;
4004     mingw32*|mingw64*)
4005         if test $target_os = "mingw32ce"; then
4006             disable network
4007         else
4008             target_os=mingw32
4009         fi
4010         LIBTARGET=i386
4011         if enabled x86_64; then
4012             LIBTARGET="i386:x86-64"
4013         elif enabled arm; then
4014             LIBTARGET=arm-wince
4015         fi
4016         check_ldflags -Wl,--nxcompat
4017         check_ldflags -Wl,--dynamicbase
4018         shlibdir_default="$bindir_default"
4019         SLIBPREF=""
4020         SLIBSUF=".dll"
4021         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4022         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4023         SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
4024         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4025         SLIB_INSTALL_LINKS=
4026         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4027         SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4028         SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
4029         enabled x86_64 && objformat="win64" || objformat="win32"
4030         dlltool="${cross_prefix}dlltool"
4031         ranlib=:
4032         enable dos_paths
4033         ;;
4034     win32|win64)
4035         disable symver
4036         if enabled shared; then
4037             # Link to the import library instead of the normal static library
4038             # for shared libs.
4039             LD_LIB='%.lib'
4040             # Cannot build both shared and static libs with MSVC or icl.
4041             disable static
4042         fi
4043         shlibdir_default="$bindir_default"
4044         SLIBPREF=""
4045         SLIBSUF=".dll"
4046         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4047         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4048         SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
4049         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4050         SLIB_INSTALL_LINKS=
4051         SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
4052         SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
4053         SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
4054         enabled x86_64 && objformat="win64" || objformat="win32"
4055         ranlib=:
4056         enable dos_paths
4057         ;;
4058     cygwin*)
4059         target_os=cygwin
4060         shlibdir_default="$bindir_default"
4061         SLIBPREF="cyg"
4062         SLIBSUF=".dll"
4063         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4064         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(NAME)-$(LIBMAJOR)$(SLIBSUF)'
4065         SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
4066         SLIB_INSTALL_LINKS=
4067         SLIB_INSTALL_EXTRA_LIB='lib$(NAME).dll.a'
4068         SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(NAME).dll.a'
4069         enabled x86_64 && objformat="win64" || objformat="win32"
4070         enable dos_paths
4071         ;;
4072     *-dos|freedos|opendos)
4073         network_extralibs="-lsocket"
4074         objformat="coff"
4075         enable dos_paths
4076         add_cppflags -U__STRICT_ANSI__
4077         ;;
4078     linux)
4079         enable dv1394
4080         enable section_data_rel_ro
4081         ;;
4082     irix*)
4083         target_os=irix
4084         ranlib="echo ignoring ranlib"
4085         ;;
4086     os/2*)
4087         ln_s="cp -f"
4088         objformat="aout"
4089         add_cppflags -D_GNU_SOURCE
4090         add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
4091         SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
4092         LIBSUF="_s.a"
4093         SLIBPREF=""
4094         SLIBSUF=".dll"
4095         SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
4096         SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
4097         SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
4098             echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
4099             echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
4100             echo EXPORTS >> $(SUBDIR)$(NAME).def; \
4101             emxexp $(OBJS) >> $(SUBDIR)$(NAME).def'
4102         SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
4103             emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
4104         SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(NAME)_dll.a $(LIBPREF)$(NAME)_dll.lib'
4105         enable dos_paths
4106         ;;
4107     gnu/kfreebsd)
4108         add_cppflags -D_BSD_SOURCE
4109         ;;
4110     gnu)
4111         ;;
4112     qnx)
4113         add_cppflags -D_QNX_SOURCE
4114         network_extralibs="-lsocket"
4115         ;;
4116     symbian)
4117         SLIBSUF=".dll"
4118         enable dos_paths
4119         add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
4120         add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
4121         add_ldflags -Wl,--target1-abs,--no-undefined \
4122                     -Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
4123                     -Wl,--entry=_E32Startup -Wl,-u,_E32Startup
4124         add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
4125                       -l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
4126                       -l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
4127         ;;
4128     osf1)
4129         add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
4130         ;;
4131     minix)
4132         ;;
4133     none)
4134         ;;
4135     *)
4136         die "Unknown OS '$target_os'."
4137         ;;
4138 esac
4139
4140 # determine libc flavour
4141
4142 probe_libc(){
4143     pfx=$1
4144     pfx_no_=${pfx%_}
4145     # uclibc defines __GLIBC__, so it needs to be checked before glibc.
4146     if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
4147         eval ${pfx}libc_type=uclibc
4148         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4149     elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
4150         eval ${pfx}libc_type=glibc
4151         add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
4152     # MinGW headers can be installed on Cygwin, so check for newlib first.
4153     elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
4154         eval ${pfx}libc_type=newlib
4155         add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
4156     # MinGW64 is backwards compatible with MinGW32, so check for it first.
4157     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
4158         eval ${pfx}libc_type=mingw64
4159         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4160         eval test \$${pfx_no_}cc_type = "gcc" &&
4161             add_${pfx}cppflags -D__printf__=__gnu_printf__
4162     elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION"  ||
4163          check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
4164         eval ${pfx}libc_type=mingw32
4165         check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
4166             (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
4167             die "ERROR: MinGW32 runtime version must be >= 3.15."
4168         add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
4169         check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
4170             add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
4171         check_${pfx}cpp_condition windows.h "defined(_WIN32_WINNT) && _WIN32_WINNT < 0x0502" &&
4172             add_${pfx}cppflags -D_WIN32_WINNT=0x0502
4173         eval test \$${pfx_no_}cc_type = "gcc" &&
4174             add_${pfx}cppflags -D__printf__=__gnu_printf__
4175     elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
4176         eval ${pfx}libc_type=msvcrt
4177         if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
4178             if [ "$pfx" = host_ ]; then
4179                 add_host_cppflags -Dsnprintf=_snprintf
4180             else
4181                 add_compat strtod.o strtod=avpriv_strtod
4182                 add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf   \
4183                                              _snprintf=avpriv_snprintf  \
4184                                              vsnprintf=avpriv_vsnprintf
4185             fi
4186         fi
4187         add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
4188         # The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
4189         # 0x601 by default unless something else is set by the user.
4190         # This can easily lead to us detecting functions only present
4191         # in such new versions and producing binaries requiring windows 7.0.
4192         # Therefore explicitly set the default to XP unless the user has
4193         # set something else on the command line.
4194         # Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
4195         # family. For these cases, configure is free to use any functions
4196         # found in the SDK headers by default. (Alternatively, we could force
4197         # _WIN32_WINNT to 0x0602 in that case.)
4198         check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
4199             { check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
4200 #ifdef WINAPI_FAMILY
4201 #include <winapifamily.h>
4202 #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
4203 #error not desktop
4204 #endif
4205 #endif
4206 EOF
4207         if [ "$pfx" = "" ]; then
4208             check_func strtoll || add_cflags -Dstrtoll=_strtoi64
4209         fi
4210     elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
4211         eval ${pfx}libc_type=klibc
4212     elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
4213         eval ${pfx}libc_type=bionic
4214     elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
4215         eval ${pfx}libc_type=solaris
4216         add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
4217     else
4218         eval ${pfx}libc_type=default
4219         add_${pfx}cppflags -D_DEFAULT_SOURCE
4220     fi
4221 }
4222
4223 probe_libc
4224 test -n "$libc_type" && enable libc_$libc_type
4225 probe_libc host_
4226 test -n "$host_libc_type" && enable host_libc_$host_libc_type
4227
4228 # hacks for compiler/libc/os combinations
4229
4230 case $libc_type in
4231     bionic)
4232         add_compat strtod.o strtod=avpriv_strtod
4233         ;;
4234     glibc)
4235         if enabled tms470; then
4236             CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
4237             add_cppflags -D__USER_LABEL_PREFIX__=
4238             add_cppflags -D__builtin_memset=memset
4239             add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
4240             add_cflags   -pds=48    # incompatible redefinition of macro
4241         elif enabled ccc; then
4242             add_ldflags -Wl,-z,now  # calls to libots crash without this
4243         fi
4244         ;;
4245 esac
4246
4247 check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
4248     add_cppflags '-I\$(SRC_PATH)/compat/float'
4249
4250 esc(){
4251     echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
4252 }
4253
4254 echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $LIBAV_CONFIGURATION)" > avbuild/config.fate
4255
4256 check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
4257
4258 set_default $PATHS_LIST
4259 set_default nm
4260
4261 # we need to build at least one lib type
4262 if ! enabled_any static shared; then
4263     cat <<EOF
4264 At least one library type must be built.
4265 Specify --enable-static to build the static libraries or --enable-shared to
4266 build the shared libraries as well. To only build the shared libraries specify
4267 --disable-static in addition to --enable-shared.
4268 EOF
4269     exit 1
4270 fi
4271
4272 disabled optimizations || check_cflags -fomit-frame-pointer
4273
4274 enable_weak_pic() {
4275     disabled pic && return
4276     enable pic
4277     add_cppflags -DPIC
4278     case "$target_os" in
4279     mingw*|cygwin*)
4280         ;;
4281     *)
4282         add_cflags -fPIC
4283         ;;
4284     esac
4285     add_asflags  -fPIC
4286 }
4287
4288 enabled pic && enable_weak_pic
4289
4290 check_cc <<EOF || die "Symbol mangling check failed."
4291 int ff_extern;
4292 EOF
4293 sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
4294 extern_prefix=${sym%%ff_extern*}
4295
4296 ! disabled inline_asm && check_inline_asm inline_asm '"" ::'
4297
4298 _restrict=
4299 for restrict_keyword in restrict __restrict__ __restrict; do
4300     check_cc <<EOF && _restrict=$restrict_keyword && break
4301 void foo(char * $restrict_keyword p);
4302 EOF
4303 done
4304
4305 check_cc <<EOF && enable pragma_deprecated
4306 void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
4307 EOF
4308
4309 check_cc <<EOF && enable attribute_packed
4310 struct { int x; } __attribute__((packed)) x;
4311 EOF
4312
4313 check_cc <<EOF && enable attribute_may_alias
4314 union { int x; } __attribute__((may_alias)) x;
4315 EOF
4316
4317 check_cc <<EOF || die "endian test failed"
4318 unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
4319 EOF
4320 od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
4321
4322 check_gas() {
4323     log "check_gas using '$as' as AS"
4324     # :vararg is used on aarch64, arm and ppc altivec
4325     check_as <<EOF || return 1
4326 .macro m n, y:vararg=0
4327 \n: .int \y
4328 .endm
4329 m x
4330 EOF
4331     # .altmacro is only used in arm asm
4332     ! enabled arm || check_as <<EOF || return 1
4333 .altmacro
4334 EOF
4335     enable gnu_as
4336     return 0
4337 }
4338
4339 if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
4340     nogas=:
4341     enabled_any arm aarch64 && nogas=die
4342     enabled_all ppc altivec && nogas=warn
4343     as_noop=-v
4344
4345     case $as_type in
4346         arm*) gaspp_as_type=armasm; as_noop=-h ;;
4347         gcc)  gaspp_as_type=gas ;;
4348         *)    gaspp_as_type=$as_type ;;
4349     esac
4350
4351     [ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
4352
4353     check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as $as_noop &&
4354         gas="gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- $as"
4355
4356     if ! check_gas ; then
4357         as=${gas:=$as}
4358         check_gas || \
4359             $nogas "GNU assembler not found, install/update gas-preprocessor"
4360     fi
4361
4362     check_as <<EOF && enable as_func
4363 .func test
4364 .endfunc
4365 EOF
4366 fi
4367
4368 check_inline_asm inline_asm_labels '"1:\n"'
4369
4370 if enabled aarch64; then
4371     enabled armv8 && check_insn armv8 'prfm   pldl1strm, [x0]'
4372     # internal assembler in clang 3.3 does not support this instruction
4373     enabled neon && check_insn neon 'ext   v0.8B, v0.8B, v1.8B, #1'
4374     enabled vfp  && check_insn vfp  'fmadd d0,    d0,    d1,    d2'
4375
4376     map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
4377
4378 elif enabled alpha; then
4379
4380     check_cflags -mieee
4381
4382 elif enabled arm; then
4383
4384     enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
4385     check_cpp_condition stddef.h "defined __thumb__" && enable_weak thumb
4386     enabled thumb && check_cflags -mthumb || check_cflags -marm
4387
4388     if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
4389         enable vfp_args
4390     elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
4391         enable vfp_args
4392     elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
4393         case "${cross_prefix:-$cc}" in
4394             *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
4395             *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
4396 __asm__ (".eabi_attribute 28, 1");
4397 int main(void) { return 0; }
4398 EOF
4399         esac
4400         warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
4401     fi
4402
4403     enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
4404     enabled armv6   && check_insn armv6   'sadd16 r0, r0, r0'
4405     enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
4406     enabled neon    && check_insn neon    'vadd.i16 q0, q0, q0'
4407     enabled vfp     && check_insn vfp     'fadds s0, s0, s0'
4408     enabled vfpv3   && check_insn vfpv3   'vmov.f32 s0, #1.0'
4409
4410     [ $target_os = linux ] || [ $target_os = android ] ||
4411         map 'enabled_any ${v}_external ${v}_inline || disable $v' \
4412             $ARCH_EXT_LIST_ARM
4413
4414     check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
4415
4416     check_as <<EOF && enable as_arch_directive
4417 .arch armv7-a
4418 EOF
4419     check_as <<EOF && enable as_fpu_directive
4420 .fpu neon
4421 EOF
4422
4423     # llvm's integrated assembler supports .object_arch from llvm 3.5
4424     [ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
4425         check_as <<EOF && enable as_object_arch
4426 .object_arch armv4
4427 EOF
4428
4429     [ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
4430
4431 elif enabled mips; then
4432
4433     check_inline_asm loongson '"dmult.g $1, $2, $3"'
4434
4435     # make sure that only an instruction set is enabled
4436     disable mips64r6 mips32r6 mips64r2 mips32r2 mips64r1 mips32r1
4437
4438     if enabled mips64; then
4439         check_inline_asm mips64r6 '"dlsa $0, $0, $0, 1"' ||
4440             check_inline_asm mips64r2 '"dext $0, $0, 0, 1"' ||
4441                 check_inline_asm mips64r1 '"daddi $0, $0, 0"'
4442     else
4443         check_inline_asm mips32r6 '"aui $0, $0, 0"' ||
4444             check_inline_asm mips32r2 '"ext $0, $0, 0, 1"' ||
4445                 check_inline_asm mips32r1 '"addi $0, $0, 0"'
4446     fi
4447
4448 elif enabled parisc; then
4449
4450     if enabled gcc; then
4451         case $($cc -dumpversion) in
4452             4.[3-8].*) check_cflags -fno-optimize-sibling-calls ;;
4453         esac
4454     fi
4455
4456 elif enabled ppc; then
4457
4458     enable local_aligned_8 local_aligned_16 local_aligned_32
4459
4460     check_inline_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
4461     check_inline_asm ibm_asm   '"add 0, 0, 0"'
4462     check_inline_asm ppc4xx    '"maclhw r10, r11, r12"'
4463     check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
4464
4465     if enabled altivec; then
4466         check_cflags -maltivec -mabi=altivec
4467
4468         # check if our compiler supports Motorola AltiVec C API
4469         check_code cc altivec.h "vector signed int v1 = (vector signed int) { 0 };
4470                                  vector signed int v2 = (vector signed int) { 1 };
4471                                  v1 = vec_add(v1, v2);" ||
4472             disable altivec
4473
4474         enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
4475     fi
4476
4477     if enabled vsx; then
4478         check_cflags -mvsx &&
4479         check_code cc altivec.h "int v[4] = { 0 };
4480                                  vector signed int v1 = vec_vsx_ld(0, v);" ||
4481             disable vsx
4482     fi
4483
4484     if enabled power8; then
4485         check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
4486     fi
4487
4488 elif enabled x86; then
4489
4490     check_builtin rdtsc    intrin.h   "__rdtsc()"
4491     check_builtin mm_empty mmintrin.h "_mm_empty()"
4492
4493     enable local_aligned_8 local_aligned_16 local_aligned_32
4494
4495     # check whether EBP is available on x86
4496     # As 'i' is stored on the stack, this program will crash
4497     # if the base pointer is used to access it because the
4498     # base pointer is cleared in the inline assembly code.
4499     check_exec_crash <<EOF && enable ebp_available
4500 volatile int i=0;
4501 __asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
4502 return i;
4503 EOF
4504
4505     # check whether EBX is available on x86
4506     check_inline_asm ebx_available '""::"b"(0)' &&
4507         check_inline_asm ebx_available '"":::"%ebx"'
4508
4509     # check whether xmm clobbers are supported
4510     check_inline_asm xmm_clobbers '"":::"%xmm0"'
4511
4512     # check whether binutils is new enough to compile SSSE3/MMXEXT
4513     enabled ssse3  && check_inline_asm ssse3_inline  '"pabsw %xmm0, %xmm0"'
4514     enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
4515
4516     probe_x86asm(){
4517         x86asmexe_probe=$1
4518         if check_cmd $x86asmexe_probe -v; then
4519             x86asmexe=$x86asmexe_probe
4520             x86asm_type=nasm
4521             x86asm_debug="-g -F dwarf"
4522             X86ASMDEP=
4523             X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
4524         elif check_cmd $x86asmexe_probe --version; then
4525             x86asmexe=$x86asmexe_probe
4526             x86asm_type=yasm
4527             x86asm_debug="-g dwarf2"
4528             X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
4529             X86ASM_DEPFLAGS=
4530         fi
4531         check_x86asm "movbe ecx, [5]" && enable x86asm
4532     }
4533
4534     if ! disabled_any asm mmx x86asm; then
4535         disable x86asm
4536         for program in $x86asmexe nasm yasm; do
4537             probe_x86asm $program && break
4538         done
4539         disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
4540         X86ASMFLAGS="-f $objformat"
4541         enabled pic               && append X86ASMFLAGS "-DPIC"
4542         test -n "$extern_prefix"  && append X86ASMFLAGS "-DPREFIX"
4543         case "$objformat" in
4544             elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
4545         esac
4546
4547         check_x86asm "vextracti128 xmm0, ymm0, 0"      || disable avx2_external
4548         check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
4549         check_x86asm "vfmadd132ps ymm0, ymm1, ymm2"    || disable fma3_external
4550         check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
4551         check_x86asm "CPU amdnop"                      || disable cpunop
4552     fi
4553
4554     case "$cpu" in
4555         athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
4556             disable fast_clz
4557         ;;
4558     esac
4559
4560 fi
4561
4562 check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
4563
4564 check_ldflags -Wl,--as-needed
4565
4566 if ! disabled network; then
4567     check_func getaddrinfo $network_extralibs
4568     check_func inet_aton $network_extralibs
4569
4570     check_type netdb.h "struct addrinfo"
4571     check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
4572     check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
4573     check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
4574     check_type poll.h "struct pollfd"
4575     check_type netinet/sctp.h "struct sctp_event_subscribe"
4576     check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
4577     check_type netinet/in.h "struct sockaddr_in6"
4578     check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
4579     check_type "sys/types.h sys/socket.h" socklen_t
4580
4581     # Prefer arpa/inet.h over winsock2
4582     if check_header arpa/inet.h ; then
4583         check_func closesocket
4584     elif check_header winsock2.h ; then
4585         check_func_headers winsock2.h closesocket -lws2 &&
4586             network_extralibs="-lws2" ||
4587         { check_func_headers winsock2.h closesocket -lws2_32 &&
4588             network_extralibs="-lws2_32"; } || disable winsock2_h network
4589         check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
4590
4591         check_type ws2tcpip.h socklen_t
4592         check_type ws2tcpip.h "struct addrinfo"
4593         check_type ws2tcpip.h "struct group_source_req"
4594         check_type ws2tcpip.h "struct ip_mreq_source"
4595         check_type ws2tcpip.h "struct ipv6_mreq"
4596         check_type winsock2.h "struct pollfd"
4597         check_struct winsock2.h "struct sockaddr" sa_len
4598         check_type ws2tcpip.h "struct sockaddr_in6"
4599         check_type ws2tcpip.h "struct sockaddr_storage"
4600     else
4601         disable network
4602     fi
4603 fi
4604
4605 check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
4606 check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
4607 check_builtin MemoryBarrier windows.h "MemoryBarrier()"
4608 check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
4609
4610 case "$custom_allocator" in
4611     jemalloc)
4612         # jemalloc by default does not use a prefix
4613         require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
4614     ;;
4615     tcmalloc)
4616         require_pkg_config libtcmalloc libtcmalloc gperftools/tcmalloc.h tc_malloc
4617         malloc_prefix=tc_
4618     ;;
4619 esac
4620
4621 check_func_headers malloc.h _aligned_malloc     && enable aligned_malloc
4622 check_func  ${malloc_prefix}memalign            && enable memalign
4623 check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
4624
4625 check_cpp_condition unistd.h "defined(_POSIX_MONOTONIC_CLOCK)" &&
4626     { check_lib clock_gettime time.h clock_gettime ||
4627       check_lib clock_gettime time.h clock_gettime -lrt; }
4628
4629 check_func  fcntl
4630 check_func  fork
4631 check_func  gethrtime
4632 check_func  getopt
4633 check_func  getrusage
4634 check_func  gettimeofday
4635 check_func  gmtime_r
4636 check_func  isatty
4637 check_func  localtime_r
4638 check_func  mach_absolute_time
4639 check_func  mkstemp
4640 check_func  mmap
4641 check_func  mprotect
4642 # Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
4643 check_func_headers time.h nanosleep || check_lib nanosleep time.h nanosleep -lrt
4644 check_func  sched_getaffinity
4645 check_func  setrlimit
4646 check_func  strerror_r
4647 check_func  sysconf
4648 check_func  sysctl
4649 check_func  usleep
4650
4651 check_func_headers io.h setmode
4652 check_func_headers stdlib.h getenv
4653
4654 check_func_headers windows.h GetProcessAffinityMask
4655 check_func_headers windows.h GetProcessTimes
4656 check_func_headers windows.h GetSystemTimeAsFileTime
4657 check_func_headers windows.h LoadLibrary
4658 check_func_headers windows.h MapViewOfFile
4659 check_func_headers windows.h SetConsoleTextAttribute
4660 check_func_headers windows.h Sleep
4661 check_func_headers windows.h VirtualAlloc
4662 check_struct windows.h "CONDITION_VARIABLE" Ptr
4663
4664 check_header d3d11.h
4665 check_header direct.h
4666 check_header dlfcn.h
4667 check_header dxgidebug.h
4668 check_header dxva.h
4669 check_header dxva2api.h
4670 check_header io.h
4671 check_header mach/mach_time.h
4672 check_header malloc.h
4673 check_header poll.h
4674 check_header sys/mman.h
4675 check_header sys/param.h
4676 check_header sys/resource.h
4677 check_header sys/select.h
4678 check_header sys/time.h
4679 check_header sys/un.h
4680 check_header unistd.h
4681 check_header valgrind/valgrind.h
4682 check_header VideoDecodeAcceleration/VDADecoder.h
4683 check_header windows.h
4684
4685 # it seems there are versions of clang in some distros that try to use the
4686 # gcc headers, which explodes for stdatomic
4687 # so we also check that atomics actually work here
4688 check_builtin stdatomic_h stdatomic.h "atomic_int foo; atomic_store(&foo, 0)"
4689
4690 check_lib ole32    "windows.h"            CoTaskMemFree        -lole32
4691 check_lib shell32  "windows.h shellapi.h" CommandLineToArgvW   -lshell32
4692 check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom       -ladvapi32
4693 check_lib psapi    "windows.h psapi.h"    GetProcessMemoryInfo -lpsapi
4694
4695 check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
4696
4697 check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
4698 check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
4699 check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
4700
4701 check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
4702 check_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
4703 check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
4704 check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
4705 check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
4706 check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
4707 check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
4708 check_type "va/va.h va/va_enc_vp8.h"  "VAEncPictureParameterBufferVP8"
4709 check_type "va/va.h va/va_enc_vp9.h"  "VAEncPictureParameterBufferVP9"
4710
4711 check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
4712
4713 if ! disabled w32threads && ! enabled pthreads; then
4714     check_lib w32threads "windows.h process.h" _beginthreadex
4715 fi
4716
4717 # check for some common methods of building with pthread support
4718 # do this before the optional library checks as some of them require pthreads
4719 if ! disabled pthreads && ! enabled w32threads; then
4720     if check_lib pthreads pthread.h pthread_join -pthread; then
4721         add_cflags -pthread
4722     elif check_lib pthreads pthread.h pthread_join -pthreads; then
4723         add_cflags -pthreads
4724     elif check_lib pthreads pthread.h pthread_join -lpthreadGC2; then
4725         :
4726     elif check_lib pthreads pthread.h pthread_join -lpthread; then
4727         :
4728     elif check_func pthread_join; then
4729         enable pthreads
4730     fi
4731 fi
4732
4733 enabled pthreads &&
4734     check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
4735
4736 disabled  zlib || check_lib  zlib  zlib.h      zlibVersion -lz
4737 disabled bzlib || check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
4738
4739 # On some systems dynamic loading requires no extra linker flags
4740 check_lib libdl dlfcn.h dlopen || check_lib libdl dlfcn.h dlopen -ldl
4741
4742 check_lib libm math.h sin -lm
4743
4744 atan2f_args=2
4745 ldexpf_args=2
4746 powf_args=2
4747
4748 for func in $MATH_FUNCS; do
4749     eval check_mathfunc $func \${${func}_args:-1} $libm_extralibs
4750 done
4751
4752 # these are off by default, so fail if requested and not available
4753 enabled avisynth          && require_header avisynth/avisynth_c.h
4754 enabled avxsynth          && require_header avxsynth/avxsynth_c.h
4755 enabled cuda              && require cuda cuda.h cuInit -lcuda
4756 enabled frei0r            && require_header frei0r.h
4757 enabled gnutls            && require_pkg_config gnutls gnutls gnutls/gnutls.h gnutls_global_init
4758 enabled libbs2b           && require_pkg_config libbs2b libbs2b bs2b.h bs2b_open
4759 enabled libdc1394         && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
4760 enabled libdcadec         && require libdcadec libdcadec/dca_context.h dcadec_context_create -ldcadec
4761 enabled libfaac           && require libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
4762 enabled libfdk_aac        && require_pkg_config libfdk_aac fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen
4763 enabled libfontconfig     && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
4764 enabled libfreetype       && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
4765 enabled libgsm            && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
4766                                    check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
4767                                done || die "ERROR: libgsm not found"; }
4768 enabled libhdcd           && require_pkg_config libhdcd libhdcd "hdcd/hdcd_simple.h" hdcd_new
4769 enabled libilbc           && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
4770 enabled libkvazaar        && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
4771 enabled libmfx            && require_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit
4772 enabled libmp3lame        && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
4773 enabled libnpp            && require libnpp npp.h nppGetLibVersion -lnppi -lnppc
4774 enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
4775 enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
4776 enabled libopencv         && require_pkg_config libopencv opencv opencv/cv.h cvCreateImageHeader
4777 enabled libopenh264       && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
4778 enabled libopenjpeg       && { check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC ||
4779                                require_pkg_config libopenjpeg libopenjpeg1 openjpeg.h opj_version -DOPJ_STATIC; }
4780 enabled libopus           && require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
4781 enabled libpulse          && require_pkg_config libpulse libpulse-simple pulse/simple.h pa_simple_new
4782 enabled librtmp           && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
4783 enabled libschroedinger   && require_pkg_config libschroedinger schroedinger-1.0 schroedinger/schro.h schro_init
4784 enabled libsnappy         && require libsnappy snappy-c.h snappy_compress -lsnappy
4785 enabled libspeex          && require_pkg_config libspeex speex speex/speex.h speex_decoder_init -lspeex
4786 enabled libtheora         && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
4787 enabled libtwolame        && require libtwolame twolame.h twolame_init -ltwolame
4788 enabled libvo_aacenc      && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
4789 enabled libvo_amrwbenc    && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
4790 enabled libvorbis         && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
4791 enabled libvpx            && require_pkg_config libvpx "vpx >= 1.3.0" vpx/vpx_codec.h vpx_codec_version &&
4792                              { enabled libvpx_vp8_decoder &&
4793                                    check_pkg_config libvpx_vp8_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx
4794                                enabled libvpx_vp8_encoder &&
4795                                    check_pkg_config libvpx_vp8_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx
4796                                enabled libvpx_vp9_decoder &&
4797                                    check_pkg_config libvpx_vp9_decoder vpx "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx
4798                                enabled libvpx_vp9_encoder &&
4799                                    check_pkg_config libvpx_vp9_encoder vpx "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx
4800                                disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder &&
4801                                    die "libvpx enabled but no supported decoders/encoders found"
4802                              }
4803 enabled libwavpack        && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput  -lwavpack
4804 enabled libwebp           && require_pkg_config libwebp libwebp webp/encode.h WebPGetEncoderVersion
4805 enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
4806                              require_cpp_condition x264.h "X264_BUILD >= 118" &&
4807                              { check_cpp_condition x264.h "X264_MPEG2" &&
4808                                enable libx262; }
4809 enabled libx265           && require_pkg_config libx265 x265 x265.h x265_api_get &&
4810                              require_cpp_condition x265.h "X265_BUILD >= 57"
4811 enabled libxavs           && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
4812 enabled libxvid           && require libxvid xvid.h xvid_global -lxvidcore
4813 enabled mmal              && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
4814                                { ! enabled cross_compile &&
4815                                  add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
4816                                  add_ldflags -L/opt/vc/lib/ &&
4817                                  check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
4818                                die "ERROR: mmal not found" &&
4819                                check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
4820 enabled omx               && require_header OMX_Core.h
4821 enabled omx_rpi           && { check_header OMX_Core.h ||
4822                                { ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
4823                                die "ERROR: OpenMAX IL headers not found"; } && enable omx
4824 enabled openssl           && { { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
4825                                  check_pkg_config openssl openssl openssl/ssl.h SSL_library_init; } ||
4826                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
4827                                check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
4828                                check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
4829                                die "ERROR: openssl not found"; }