APIchanges: fix a grammar mistake
[libav.git] / configure
CommitLineData
aeb29222 1#!/bin/sh
0f3cb305 2#
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3# FFmpeg configure script
4#
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5# Copyright (c) 2000-2002 Fabrice Bellard
6# Copyright (c) 2005-2008 Diego Biurrun
7# Copyright (c) 2005-2008 Mans Rullgard
0f3cb305 8#
cf9d24ad 9
31e647f8 10# Prevent locale nonsense from breaking basic text processing.
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11LC_ALL=C
12export LC_ALL
31e647f8 13
cde2d79a 14# make sure we are running under a compatible shell
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15# try to make this part work with most shells
16
17try_exec(){
0dbe81bb 18 echo "Trying shell $1"
2270b4b2 19 type "$1" > /dev/null 2>&1 && exec "$@"
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20}
21
5237ce67 22unset foo
2270b4b2 23(: ${foo%%bar}) 2> /dev/null
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24E1="$?"
25
2270b4b2 26(: ${foo?}) 2> /dev/null
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27E2="$?"
28
29if test "$E1" != 0 || test "$E2" = 0; then
30 echo "Broken shell detected. Trying alternatives."
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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 "$0" "$@"
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43 fi
44 echo "No compatible shell script interpreter found."
fc53da20 45 echo "This configure script requires a POSIX-compatible shell"
c21d6325 46 echo "such as bash or ksh."
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47 echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
48 echo "Instead, install a working POSIX-compatible shell."
49 echo "Disabling this configure test will create a broken FFmpeg."
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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
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54 exit 1
55fi
56
74c53c2d 57show_help(){
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58cat <<EOF
59Usage: configure [options]
60Options: [defaults in brackets after descriptions]
61
62Standard options:
63 --help print this message
19bd477d 64 --logfile=FILE log tests and output to FILE [config.log]
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65 --disable-logging do not log configure debug information
66 --prefix=PREFIX install in PREFIX [$prefix]
67 --bindir=DIR install binaries in DIR [PREFIX/bin]
68 --datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
69 --libdir=DIR install libs in DIR [PREFIX/lib]
70 --shlibdir=DIR install shared libs in DIR [PREFIX/lib]
71 --incdir=DIR install includes in DIR [PREFIX/include]
72 --mandir=DIR install man page in DIR [PREFIX/share/man]
73
74Configuration options:
75 --disable-static do not build static libraries [no]
76 --enable-shared build shared libraries [no]
77 --enable-gpl allow use of GPL code, the resulting libs
78 and binaries will be under GPL [no]
79 --enable-version3 upgrade (L)GPL to version 3 [no]
80 --enable-nonfree allow use of nonfree code, the resulting libs
81 and binaries will be unredistributable [no]
82 --disable-doc do not build documentation
83 --disable-ffmpeg disable ffmpeg build
84 --disable-ffplay disable ffplay build
336ce917 85 --disable-ffprobe disable ffprobe build
06454877 86 --disable-ffserver disable ffserver build
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87 --disable-avdevice disable libavdevice build
88 --disable-avcodec disable libavcodec build
89 --disable-avformat disable libavformat build
90 --disable-swscale disable libswscale build
06454877 91 --enable-postproc enable GPLed postprocessing support [no]
cccc039f 92 --disable-avfilter disable video filter support [no]
06454877 93 --enable-avfilter-lavf video filters dependent on avformat [no]
0dbfc1db 94 --disable-pthreads disable pthreads [auto]
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95 --enable-w32threads use Win32 threads [no]
96 --enable-x11grab enable X11 grabbing [no]
97 --disable-network disable network support [no]
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98 --disable-mpegaudio-hp faster (but less accurate) MPEG audio decoding [no]
99 --enable-gray enable full grayscale support (slower color)
100 --disable-swscale-alpha disable alpha channel support in swscale
101 --disable-fastdiv disable table-based division
102 --enable-small optimize for size instead of speed
103 --disable-aandct disable AAN DCT code
7f3f5f46 104 --disable-dct disable DCT code
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105 --disable-fft disable FFT code
106 --disable-golomb disable Golomb code
107 --disable-lpc disable LPC code
108 --disable-mdct disable MDCT code
109 --disable-rdft disable RDFT code
110 --disable-vaapi disable VAAPI code
111 --disable-vdpau disable VDPAU code
92c6a099 112 --disable-dxva2 disable DXVA2 code
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113 --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114 --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115 --enable-memalign-hack emulate memalign, interferes with memory debuggers
bb55e3a3 116 --disable-everything disable all components listed below
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117 --disable-encoder=NAME disable encoder NAME
118 --enable-encoder=NAME enable encoder NAME
119 --disable-encoders disable all encoders
120 --disable-decoder=NAME disable decoder NAME
121 --enable-decoder=NAME enable decoder NAME
122 --disable-decoders disable all decoders
123 --disable-hwaccel=NAME disable hwaccel NAME
124 --enable-hwaccel=NAME enable hwaccel NAME
125 --disable-hwaccels disable all hwaccels
126 --disable-muxer=NAME disable muxer NAME
127 --enable-muxer=NAME enable muxer NAME
128 --disable-muxers disable all muxers
129 --disable-demuxer=NAME disable demuxer NAME
130 --enable-demuxer=NAME enable demuxer NAME
131 --disable-demuxers disable all demuxers
132 --enable-parser=NAME enable parser NAME
133 --disable-parser=NAME disable parser NAME
134 --disable-parsers disable all parsers
135 --enable-bsf=NAME enable bitstream filter NAME
136 --disable-bsf=NAME disable bitstream filter NAME
137 --disable-bsfs disable all bitstream filters
138 --enable-protocol=NAME enable protocol NAME
139 --disable-protocol=NAME disable protocol NAME
140 --disable-protocols disable all protocols
141 --disable-indev=NAME disable input device NAME
142 --disable-outdev=NAME disable output device NAME
143 --disable-indevs disable input devices
144 --disable-outdevs disable output devices
145 --disable-devices disable all devices
146 --enable-filter=NAME enable filter NAME
147 --disable-filter=NAME disable filter NAME
148 --disable-filters disable all filters
149 --list-decoders show all available decoders
150 --list-encoders show all available encoders
151 --list-hwaccels show all available hardware accelerators
152 --list-muxers show all available muxers
153 --list-demuxers show all available demuxers
154 --list-parsers show all available parsers
155 --list-protocols show all available protocols
156 --list-bsfs show all available bitstream filters
157 --list-indevs show all available input devices
158 --list-outdevs show all available output devices
159 --list-filters show all available filters
160
161External library support:
162 --enable-avisynth enable reading of AVISynth script files [no]
163 --enable-bzlib enable bzlib [autodetect]
164 --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165 --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166 --enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
167 and libraw1394 [no]
168 --enable-libdirac enable Dirac support via libdirac [no]
169 --enable-libfaac enable FAAC support via libfaac [no]
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170 --enable-libgsm enable GSM support via libgsm [no]
171 --enable-libmp3lame enable MP3 encoding via libmp3lame [no]
172 --enable-libnut enable NUT (de)muxing via libnut,
173 native (de)muxer exists [no]
174 --enable-libopenjpeg enable JPEG 2000 decoding via OpenJPEG [no]
0f943ce6 175 --enable-librtmp enable RTMP[E] support via librtmp [no]
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176 --enable-libschroedinger enable Dirac support via libschroedinger [no]
177 --enable-libspeex enable Speex decoding via libspeex [no]
178 --enable-libtheora enable Theora encoding via libtheora [no]
179 --enable-libvorbis enable Vorbis encoding via libvorbis,
180 native implementation exists [no]
8299a7f8 181 --enable-libvpx enable VP8 support via libvpx [no]
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182 --enable-libx264 enable H.264 encoding via x264 [no]
183 --enable-libxvid enable Xvid encoding via xvidcore,
184 native MPEG-4/Xvid encoder exists [no]
185 --enable-mlib enable Sun medialib [no]
186 --enable-zlib enable zlib [autodetect]
187
188Advanced options (experts only):
189 --source-path=PATH path to source code [$source_path]
190 --cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
191 --enable-cross-compile assume a cross-compiler is used
192 --sysroot=PATH root of cross-build tree
193 --sysinclude=PATH location of cross-build system headers
194 --target-os=OS compiler targets OS [$target_os]
195 --target-exec=CMD command to run executables on target
196 --target-path=DIR path to view of build directory on target
197 --nm=NM use nm tool
121d78d0 198 --ar=AR use archive tool AR [$ar_default]
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199 --as=AS use assembler AS [$as_default]
200 --cc=CC use C compiler CC [$cc_default]
201 --ld=LD use linker LD
202 --host-cc=HOSTCC use host C compiler HOSTCC
203 --host-cflags=HCFLAGS use HCFLAGS when compiling for host
204 --host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
205 --host-libs=HLIBS use libs HLIBS when linking for host
206 --extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
207 --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
208 --extra-libs=ELIBS add ELIBS [$ELIBS]
209 --extra-version=STRING version string suffix []
210 --build-suffix=SUFFIX library name suffix []
211 --arch=ARCH select architecture [$arch]
212 --cpu=CPU select the minimum required CPU (affects
213 instruction selection, may crash on older CPUs)
c8a4ae00 214 --disable-asm disable all assembler optimizations
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215 --disable-altivec disable AltiVec optimizations
216 --disable-amd3dnow disable 3DNow! optimizations
217 --disable-amd3dnowext disable 3DNow! extended optimizations
218 --disable-mmx disable MMX optimizations
219 --disable-mmx2 disable MMX2 optimizations
220 --disable-sse disable SSE optimizations
221 --disable-ssse3 disable SSSE3 optimizations
222 --disable-armv5te disable armv5te optimizations
223 --disable-armv6 disable armv6 optimizations
224 --disable-armv6t2 disable armv6t2 optimizations
225 --disable-armvfp disable ARM VFP optimizations
226 --disable-iwmmxt disable iwmmxt optimizations
227 --disable-mmi disable MMI optimizations
228 --disable-neon disable neon optimizations
229 --disable-vis disable VIS optimizations
230 --disable-yasm disable use of yasm assembler
231 --enable-pic build position-independent code
4ae40685 232 --malloc-prefix=PFX prefix malloc and related names with PFX
6b35d421 233 --enable-sram allow use of on-chip SRAM
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234
235Developer options (useful when working on FFmpeg itself):
236 --disable-debug disable debugging symbols
237 --enable-debug=LEVEL set the debug level [$debuglevel]
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238 --disable-optimizations disable compiler optimizations
239 --enable-extra-warnings enable more compiler warnings
240 --disable-stripping disable stripping of executables and shared libraries
2fad0977 241 --samples=PATH location of test samples for FATE
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242
243NOTE: Object files are built at the place where configure is launched.
244EOF
60e8bc13 245 exit 0
74c53c2d 246}
cf9d24ad 247
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248quotes='""'
249
57bd82d4 250log(){
2270b4b2 251 echo "$@" >> $logfile
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252}
253
720c69da 254log_file(){
c8e9f801 255 log BEGIN $1
2270b4b2 256 pr -n -t $1 >> $logfile
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257 log END $1
258}
259
2ba042a7 260echolog(){
c8e9f801 261 log "$@"
57bd82d4 262 echo "$@"
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263}
264
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265warn(){
266 log "WARNING: $*"
267 WARNINGS="${WARNINGS}WARNING: $*\n"
268}
269
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270die(){
271 echolog "$@"
272 cat <<EOF
d326cf7f 273
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274If you think configure made a mistake, make sure you are using the latest
275version from SVN. If the latest version fails, report the problem to the
e5d8ccd7 276ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
2ba042a7 277EOF
e155a21a 278 if disabled logging; then
2ba042a7 279 cat <<EOF
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280Rerun configure with logging enabled (do not use --disable-logging), and
281include the log this produces with your report.
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282EOF
283 else
284cat <<EOF
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285Include the log file "$logfile" produced by configure as this will help
286solving the problem.
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287EOF
288 fi
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289 exit 1
290}
291
6c6007d6 292# Avoid locale weirdness, besides we really just want to translate ASCII.
44161118 293toupper(){
6c6007d6 294 echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
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295}
296
4a5444db 297tolower(){
6c6007d6 298 echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
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299}
300
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301c_escape(){
302 echo "$*" | sed 's/["\\]/\\\0/g'
303}
304
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305sh_quote(){
306 v=$(echo "$1" | sed "s/'/'\\\\''/g")
307 test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
308 echo "$v"
309}
310
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311filter(){
312 pat=$1
313 shift
314 for v; do
98ef6079 315 eval "case $v in $pat) echo $v ;; esac"
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316 done
317}
318
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319map(){
320 m=$1
321 shift
e0e335a0 322 for v; do eval $m; done
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323}
324
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325set_all(){
326 value=$1
327 shift
328 for var in $*; do
329 eval $var=$value
330 done
331}
332
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333set_weak(){
334 value=$1
335 shift
336 for var; do
337 eval : \${$var:=$value}
338 done
339}
340
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341pushvar(){
342 for var in $*; do
343 eval level=\${${var}_level:=0}
344 eval ${var}_${level}="\$$var"
345 eval ${var}_level=$(($level+1))
346 done
347}
348
349popvar(){
350 for var in $*; do
351 eval level=\${${var}_level:-0}
352 test $level = 0 && continue
353 eval level=$(($level-1))
354 eval $var="\${${var}_${level}}"
355 eval ${var}_level=$level
356 eval unset ${var}_${level}
357 done
358}
359
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360enable(){
361 set_all yes $*
362}
363
364disable(){
365 set_all no $*
366}
367
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368enable_weak(){
369 set_weak yes $*
370}
371
372disable_weak(){
373 set_weak no $*
374}
375
72702705 376enable_safe(){
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377 for var; do
378 enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
379 done
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380}
381
382disable_safe(){
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383 for var; do
384 disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
385 done
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386}
387
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388do_enable_deep(){
389 for var; do
390 enabled $var && continue
391 eval sel="\$${var}_select"
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392 eval sgs="\$${var}_suggest"
393 pushvar var sgs
f9d328da 394 enable_deep $sel
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395 popvar sgs
396 enable_deep_weak $sgs
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397 popvar var
398 done
399}
400
401enable_deep(){
402 do_enable_deep $*
403 enable $*
404}
405
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406enable_deep_weak(){
407 do_enable_deep $*
408 enable_weak $*
409}
410
57bd82d4 411enabled(){
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412 test "${1#!}" = "$1" && op== || op=!=
413 eval test "x\$${1#!}" $op "xyes"
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414}
415
37970ebf 416disabled(){
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417 test "${1#!}" = "$1" && op== || op=!=
418 eval test "x\$${1#!}" $op "xno"
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419}
420
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421enabled_all(){
422 for opt; do
423 enabled $opt || return 1
424 done
425}
426
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427disabled_all(){
428 for opt; do
429 disabled $opt || return 1
430 done
431}
432
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433enabled_any(){
434 for opt; do
435 enabled $opt && return 0
436 done
437}
438
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439disabled_any(){
440 for opt; do
441 disabled $opt && return 0
442 done
f7b230a7 443 return 1
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444}
445
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446set_default(){
447 for opt; do
88268e94 448 eval : \${$opt:=\$${opt}_default}
c9d19248
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449 done
450}
451
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452is_in(){
453 value=$1
454 shift
455 for var in $*; do
456 [ $var = $value ] && return 0
457 done
458 return 1
459}
460
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461check_deps(){
462 for cfg; do
3250003c 463 cfg="${cfg#!}"
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464 enabled ${cfg}_checking && die "Circular dependency for $cfg."
465 disabled ${cfg}_checking && continue
466 enable ${cfg}_checking
467
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468 eval dep_all="\$${cfg}_deps"
469 eval dep_any="\$${cfg}_deps_any"
7ef3425f 470 eval dep_sel="\$${cfg}_select"
c510c7b5 471 eval dep_sgs="\$${cfg}_suggest"
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472 eval dep_ifa="\$${cfg}_if"
473 eval dep_ifn="\$${cfg}_if_any"
799c9e9b 474
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475 pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
476 check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
477 popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
799c9e9b 478
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479 [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
480 [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
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481 enabled_all $dep_all || disable $cfg
482 enabled_any $dep_any || disable $cfg
7ef3425f 483 disabled_any $dep_sel && disable $cfg
799c9e9b 484
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485 if enabled $cfg; then
486 eval dep_extralibs="\$${cfg}_extralibs"
487 test -n "$dep_extralibs" && add_extralibs $dep_extralibs
f9d328da 488 enable_deep $dep_sel
c510c7b5 489 enable_deep_weak $dep_sgs
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490 fi
491
799c9e9b 492 disable ${cfg}_checking
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493 done
494}
495
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496print_config(){
497 pfx=$1
498 header=$2
499 makefile=$3
500 shift 3
501 for cfg; do
5e622c40 502 ucname="$(toupper $cfg)"
44161118 503 if enabled $cfg; then
3d907e22 504 echo "#define ${pfx}${ucname} 1" >> $header
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505 echo "${pfx}${ucname}=yes" >> $makefile
506 else
b250f9c6 507 echo "#define ${pfx}${ucname} 0" >> $header
fbb6c6c2 508 echo "!${pfx}${ucname}=yes" >> $makefile
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509 fi
510 done
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511}
512
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513print_enabled(){
514 test "$1" = -n && end=" " && shift || end="\n"
515 suf=$1
516 shift
517 for v; do
518 enabled $v && printf "%s$end" ${v%$suf};
519 done
520}
521
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522append(){
523 var=$1
524 shift
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525 eval "$var=\"\$$var $*\""
526}
527
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528prepend(){
529 var=$1
530 shift
531 eval "$var=\"$* \$$var\""
532}
533
50a334e4 534add_cppflags(){
caf458dd 535 append CPPFLAGS $($filter_cppflags "$@")
50a334e4
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536}
537
57bd82d4 538add_cflags(){
caf458dd 539 append CFLAGS $($filter_cflags "$@")
57bd82d4
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540}
541
2f2e6c7c 542add_asflags(){
caf458dd 543 append ASFLAGS $($filter_asflags "$@")
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544}
545
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546add_ldflags(){
547 append LDFLAGS "$@"
548}
549
550add_extralibs(){
60361817 551 prepend extralibs "$@"
57bd82d4
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552}
553
b0cfb663 554check_cmd(){
b3cb5d51 555 log "$@"
2270b4b2 556 "$@" >> $logfile 2>&1
b0cfb663
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557}
558
dcd479c0 559check_cc(){
57bd82d4 560 log check_cc "$@"
2270b4b2 561 cat > $TMPC
720c69da 562 log_file $TMPC
50a334e4 563 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
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564}
565
566check_cpp(){
567 log check_cpp "$@"
2270b4b2 568 cat > $TMPC
720c69da 569 log_file $TMPC
9e7f3277 570 check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
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571}
572
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573check_as(){
574 log check_as "$@"
575 cat > $TMPC
576 log_file $TMPC
2f2e6c7c 577 check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
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578}
579
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580check_asm(){
581 log check_asm "$@"
582 name="$1"
3784e82e 583 code="$2"
940f335a 584 shift 2
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585 disable $name
586 check_as "$@" <<EOF && enable $name
3784e82e 587void foo(void){ __asm__ volatile($code); }
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588EOF
589}
590
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591check_yasm(){
592 log check_yasm "$@"
593 echo "$1" > $TMPS
594 log_file $TMPS
595 shift 1
596 check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
597}
598
dcd479c0 599check_ld(){
57bd82d4 600 log check_ld "$@"
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601 flags=''
602 libs=''
603 for f; do
604 test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
605 done
2a194acd 606 check_cc $($filter_cflags $flags) || return
684b28e0 607 check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
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608}
609
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610check_cppflags(){
611 log check_cppflags "$@"
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612 set -- $($filter_cppflags "$@")
613 check_cc "$@" <<EOF && append CPPFLAGS "$@"
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614int x;
615EOF
616}
617
dcd479c0 618check_cflags(){
57bd82d4 619 log check_cflags "$@"
caf458dd
MR
620 set -- $($filter_cflags "$@")
621 check_cc "$@" <<EOF && append CFLAGS "$@"
dcd479c0
MR
622int x;
623EOF
624}
625
2ed46eea
MR
626test_ldflags(){
627 log test_ldflags "$@"
628 check_ld "$@" <<EOF
c23a0ac8 629int main(void){ return 0; }
dcd479c0
MR
630EOF
631}
632
2ed46eea
MR
633check_ldflags(){
634 log check_ldflags "$@"
635 test_ldflags "$@" && add_ldflags "$@"
636}
637
dcd479c0 638check_header(){
57bd82d4 639 log check_header "$@"
dcd479c0
MR
640 header=$1
641 shift
b77df637
MR
642 disable_safe $header
643 check_cpp "$@" <<EOF && enable_safe $header
dcd479c0
MR
644#include <$header>
645int x;
646EOF
647}
648
649check_func(){
57bd82d4 650 log check_func "$@"
dcd479c0
MR
651 func=$1
652 shift
d8bc5f06
MR
653 disable $func
654 check_ld "$@" <<EOF && enable $func
dcd479c0 655extern int $func();
c23a0ac8 656int main(void){ $func(); }
dcd479c0
MR
657EOF
658}
659
645d2652 660check_mathfunc(){
6b73c0ae 661 log check_mathfunc "$@"
645d2652
MR
662 func=$1
663 shift
664 disable $func
665 check_ld "$@" <<EOF && enable $func
666#include <math.h>
33bd38db
MR
667float foo(float f) { return $func(f); }
668int main(void){ return 0; }
645d2652
MR
669EOF
670}
671
2446d3d6
DB
672check_func_headers(){
673 log check_func_headers "$@"
f8d7b072
MR
674 headers=$1
675 func=$2
676 shift 2
677 disable $func
678 incs=""
679 for hdr in $headers; do
680 incs="$incs
681#include <$hdr>"
682 done
cd0d9a9d 683 check_ld "$@" <<EOF && enable $func && enable_safe $headers
f8d7b072 684$incs
d6773f56 685int main(int argc, char **argv){
2b2c2a81 686 return (long) $func;
f8d7b072
MR
687}
688EOF
689}
690
a5344cf7
SS
691check_cpp_condition(){
692 log check_cpp_condition "$@"
693 header=$1
694 condition=$2
f855b7b9
MR
695 shift 2
696 check_cpp $($filter_cppflags "$@") <<EOF
a5344cf7
SS
697#include <$header>
698#if !($condition)
699#error "unsatisfied condition: $condition"
700#endif
701EOF
702}
703
57bd82d4
MR
704check_lib(){
705 log check_lib "$@"
706 header="$1"
707 func="$2"
708 shift 2
84400e9d 709 check_header $header && check_func $func "$@" && add_extralibs "$@"
57bd82d4
MR
710}
711
f8d7b072
MR
712check_lib2(){
713 log check_lib2 "$@"
714 headers="$1"
715 func="$2"
716 shift 2
300cde27 717 check_func_headers "$headers" $func "$@" && add_extralibs "$@"
f8d7b072
MR
718}
719
dcd479c0 720check_exec(){
2270b4b2 721 check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
57bd82d4
MR
722}
723
7dfef245 724check_exec_crash(){
5e622c40 725 code=$(cat)
7dfef245
MR
726
727 # exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
728 # are safe but may not be available everywhere. Thus we use
729 # raise(SIGTERM) instead. The check is run in a subshell so we
730 # can redirect the "Terminated" message from the shell. SIGBUS
731 # is not defined by standard C so it is used conditionally.
732
2270b4b2 733 (check_exec "$@") >> $logfile 2>&1 <<EOF
7dfef245
MR
734#include <signal.h>
735static void sighandler(int sig){
736 raise(SIGTERM);
737}
e5af4a11 738int main(void){
7dfef245
MR
739 signal(SIGILL, sighandler);
740 signal(SIGFPE, sighandler);
741 signal(SIGSEGV, sighandler);
742#ifdef SIGBUS
743 signal(SIGBUS, sighandler);
744#endif
745 { $code }
746}
747EOF
748}
749
72be9e73
DY
750check_type(){
751 log check_type "$@"
752 headers=$1
753 type=$2
754 shift 2
ae550ce9 755 disable_safe "$type"
72be9e73
DY
756 incs=""
757 for hdr in $headers; do
758 incs="$incs
759#include <$hdr>"
760 done
ae550ce9 761 check_cc "$@" <<EOF && enable_safe "$type"
72be9e73
DY
762$incs
763$type v;
764EOF
765}
766
14d36751
MR
767check_struct(){
768 log check_type "$@"
769 headers=$1
770 struct=$2
771 member=$3
772 shift 3
773 disable_safe "${struct}_${member}"
774 incs=""
775 for hdr in $headers; do
776 incs="$incs
777#include <$hdr>"
778 done
779 check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
780$incs
781const void *p = &(($struct *)0)->$member;
782EOF
783}
784
57bd82d4
MR
785require(){
786 name="$1"
787 header="$2"
788 func="$3"
789 shift 3
790 check_lib $header $func "$@" || die "ERROR: $name not found"
dcd479c0
MR
791}
792
f8d7b072
MR
793require2(){
794 name="$1"
795 headers="$2"
796 func="$3"
797 shift 3
798 check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
799}
800
f0125de9
MR
801check_host_cc(){
802 log check_host_cc "$@"
803 cat > $TMPC
804 log_file $TMPC
805 check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
806}
807
808check_host_cflags(){
809 log check_host_cflags "$@"
810 check_host_cc "$@" <<EOF && append host_cflags "$@"
811int x;
812EOF
813}
814
c505dd31
MR
815apply(){
816 file=$1
817 shift
818 "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
819}
820
c34681df
MR
821cp_if_changed(){
822 cmp -s "$1" "$2" &&
823 echo "$2 is unchanged" ||
824 cp -f "$1" "$2"
825}
826
dcd61286
DB
827# CONFIG_LIST contains configurable options, while HAVE_LIST is for
828# system-dependent things.
829
4a0d6686
AJ
830COMPONENT_LIST="
831 bsfs
832 decoders
833 demuxers
834 encoders
3cde40aa 835 filters
5666fd73 836 hwaccels
c552605c 837 indevs
4a0d6686 838 muxers
c552605c 839 outdevs
4a0d6686
AJ
840 parsers
841 protocols
842"
843
844CONFIG_LIST="
845 $COMPONENT_LIST
e8ed9b7a 846 aandct
5a0f7131
MR
847 avcodec
848 avdevice
f7679c54
VS
849 avfilter
850 avfilter_lavf
5a0f7131 851 avformat
c88f5d72 852 avisynth
f402916e 853 bzlib
7f3f5f46 854 dct
c73f65d9 855 doc
05aec7bb 856 dwt
92c6a099 857 dxva2
27a9466b 858 fastdiv
c88f5d72
MR
859 ffmpeg
860 ffplay
336ce917 861 ffprobe
c88f5d72 862 ffserver
1848f7d9 863 fft
4f034993 864 golomb
c88f5d72 865 gpl
d8d0d0b2 866 gray
4693b031 867 h264dsp
3abe5fbd 868 hardcoded_tables
f7b8bffe 869 libdc1394
690bfceb 870 libdirac
2eed5a46 871 libfaac
c88f5d72 872 libgsm
6ebe07fb 873 libmp3lame
c88f5d72 874 libnut
0b175caa
DB
875 libopencore_amrnb
876 libopencore_amrwb
9a77d59a 877 libopenjpeg
0f943ce6 878 librtmp
f7cd9eed 879 libschroedinger
ae14f311 880 libspeex
150d2772 881 libtheora
c88f5d72 882 libvorbis
8299a7f8 883 libvpx
1cc60c47
DB
884 libx264
885 libxvid
f4d608e3 886 lpc
b781cc12 887 lsp
47a158cb 888 mdct
c88f5d72 889 memalign_hack
a8150374 890 mlib
c88f5d72
MR
891 mpegaudio_hp
892 network
3fe142e2 893 nonfree
8a3c8627 894 pic
4a24ab64 895 postproc
68602540 896 rdft
e90f5b5a 897 runtime_cpudetect
2e35e684 898 shared
bd2216e4 899 small
6b35d421 900 sram
2e35e684 901 static
5a0f7131 902 swscale
a9ddb5b1 903 swscale_alpha
17492d5e
DB
904 vaapi
905 vdpau
9cad0e4e 906 version3
56a059ac 907 x11grab
c88f5d72 908 zlib
4a0d6686 909"
c88f5d72 910
8eee7025 911THREADS_LIST='
8eee7025
DB
912 pthreads
913 w32threads
914'
915
3f5b56e5
MR
916ARCH_LIST='
917 alpha
a2fc0f6a 918 arm
fdcd782d
MR
919 avr32
920 avr32_ap
921 avr32_uc
3f5b56e5
MR
922 bfin
923 ia64
924 m68k
925 mips
bae3abb0 926 mips64
3f5b56e5 927 parisc
79cb09b2 928 ppc
34d11b87 929 ppc64
3f5b56e5
MR
930 s390
931 sh4
932 sparc
933 sparc64
0844bae1 934 tomi
3f5b56e5
MR
935 x86
936 x86_32
937 x86_64
938'
939
940ARCH_EXT_LIST='
1ac9331a 941 altivec
3bf96eec 942 amd3dnow
a1ef9f08 943 amd3dnowext
1ac9331a 944 armv5te
edab3048 945 armv6
ab5cb084 946 armv6t2
f55b299a 947 armvfp
3f5b56e5
MR
948 iwmmxt
949 mmi
950 mmx
d7f0920b 951 mmx2
6b18d278 952 neon
799fde37 953 ppc4xx
1bb04d5a 954 sse
9eeed841 955 ssse3
bd9d34a0 956 vis
3f5b56e5
MR
957'
958
a3e02a8c
MR
959HAVE_LIST_PUB='
960 bigendian
d268eee9 961 fast_unaligned
a3e02a8c
MR
962'
963
3f5b56e5
MR
964HAVE_LIST="
965 $ARCH_EXT_LIST
a3e02a8c 966 $HAVE_LIST_PUB
3f5b56e5 967 $THREADS_LIST
35fd8122 968 alsa_asoundlib_h
3f5b56e5 969 altivec_h
c9fdab0d 970 arpa_inet_h
dffb41b9 971 attribute_may_alias
e7ea5e3d 972 attribute_packed
6bd859d6 973 bswap
ecf97f22 974 closesocket
1ac9331a 975 cmov
e16e49ac 976 conio_h
c88f5d72 977 dcbzl
f8aa696f
DB
978 dev_bktr_ioctl_bt848_h
979 dev_bktr_ioctl_meteor_h
980 dev_ic_bt8xx_h
981 dev_video_meteor_ioctl_meteor_h
982 dev_video_bktr_ioctl_bt848_h
18b67ae5 983 dlfcn_h
c88f5d72 984 dlopen
bc574408 985 dos_paths
245626d0
DB
986 ebp_available
987 ebx_available
6b7c7703
VS
988 exp2
989 exp2f
c2a29455 990 fast_64bit
669b5583 991 fast_clz
7073e9fc 992 fast_cmov
534a2231 993 fcntl
9d99cc5a 994 fork
84882df6 995 getaddrinfo
da9e86f8 996 gethrtime
fc5607f8 997 GetProcessMemoryInfo
4e68cb8a 998 GetProcessTimes
66be5b45 999 getrusage
a49d3025 1000 gnu_as
fc5607f8 1001 struct_rusage_ru_maxrss
2f0c136e 1002 ibm_asm
2e1913b1 1003 inet_aton
61d251db 1004 inline_asm
abfc8d05 1005 isatty
9f5ff83f 1006 ldbrx
0b4a1821
AS
1007 libdc1394_1
1008 libdc1394_2
a33cab3a 1009 llrint
07876e25 1010 llrintf
d96cd429
MR
1011 local_aligned_16
1012 local_aligned_8
291fd18a 1013 log2
6b7c7703 1014 log2f
85dd97ad 1015 loongson
a33cab3a 1016 lrint
c88f5d72 1017 lrintf
e4673692 1018 lzo1x_999_compress
f8aa696f
DB
1019 machine_ioctl_bt848_h
1020 machine_ioctl_meteor_h
c88f5d72
MR
1021 malloc_h
1022 memalign
6ffa87d3 1023 mkstemp
b4e806b2 1024 pld
1f91cdce 1025 posix_memalign
a33cab3a
MK
1026 round
1027 roundf
c88f5d72
MR
1028 sdl
1029 sdl_video_size
b507ebd1 1030 setmode
72be9e73 1031 socklen_t
deb29777 1032 soundcard_h
f8cda19e 1033 poll_h
0104b608 1034 setrlimit
87958234 1035 strerror_r
c0018613 1036 struct_addrinfo
b4d68544
MS
1037 struct_ipv6_mreq
1038 struct_sockaddr_in6
3b2372bf 1039 struct_sockaddr_sa_len
33a4dbdd 1040 struct_sockaddr_storage
b462d132
MR
1041 symver
1042 symver_gnu_asm
1043 symver_asm_label
b58412f1 1044 sys_mman_h
b091aa44 1045 sys_resource_h
81644c2e 1046 sys_select_h
deb29777 1047 sys_soundcard_h
1b6e8b73 1048 sys_videoio_h
d3a4b4e0 1049 ten_operands
e16e49ac 1050 termios_h
b265431e 1051 threads
7b04b8a0 1052 truncf
ce742de2 1053 vfp_args
7c5bfe7a 1054 VirtualAlloc
6ff3f3e7 1055 winsock2_h
cc078b5d 1056 xform_asm
304d586d 1057 yasm
0cb78cef 1058"
44161118 1059
b6bb00b0
MR
1060# options emitted with CONFIG_ prefix but not available on command line
1061CONFIG_EXTRA="
dc4f5a1c 1062 avutil
9cad0e4e
DB
1063 gplv3
1064 lgplv3
b6bb00b0
MR
1065"
1066
520cc7f1 1067CMDLINE_SELECT="
3f5b56e5 1068 $ARCH_EXT_LIST
520cc7f1 1069 $CONFIG_LIST
8eee7025 1070 $THREADS_LIST
c8a4ae00 1071 asm
db6107b6 1072 cross_compile
520cc7f1
MR
1073 debug
1074 extra_warnings
8c6afa4d 1075 logging
d2bbb2f7 1076 optimizations
87a0fb62 1077 stripping
7595a5e4 1078 yasm
520cc7f1 1079"
426be5dc
DB
1080
1081PATHS_LIST='
d156bede 1082 bindir
14a8acf1 1083 datadir
26759c44
MR
1084 incdir
1085 libdir
26759c44
MR
1086 mandir
1087 prefix
1088 shlibdir
426be5dc
DB
1089'
1090
1091CMDLINE_SET="
1092 $PATHS_LIST
121d78d0 1093 ar
426be5dc 1094 arch
313c46a6 1095 as
426be5dc
DB
1096 build_suffix
1097 cc
1098 cpu
1099 cross_prefix
50567afa 1100 dep_cc
ac63af34 1101 extra_version
9da6609f
MR
1102 host_cc
1103 host_cflags
1104 host_ldflags
1105 host_libs
82bb3329 1106 host_os
684b28e0 1107 ld
426be5dc 1108 logfile
4ae40685 1109 malloc_prefix
89641463 1110 nm
2fad0977 1111 samples
26759c44 1112 source_path
4f837398 1113 strip
c5200f17
MR
1114 sysinclude
1115 sysroot
a7ada2ba 1116 target_exec
26759c44 1117 target_os
a7ada2ba 1118 target_path
426be5dc 1119"
520cc7f1 1120
89f2932b
MR
1121CMDLINE_APPEND="
1122 extra_cflags
1123"
1124
912f3148
DB
1125# code dependency declarations
1126
9eeed841 1127# architecture extensions
808fa33c 1128
a2fc0f6a
MR
1129armv5te_deps="arm"
1130armv6_deps="arm"
ab5cb084 1131armv6t2_deps="arm"
a2fc0f6a
MR
1132armvfp_deps="arm"
1133iwmmxt_deps="arm"
808fa33c
MR
1134neon_deps="arm"
1135
e241ba14 1136mmi_deps="mips"
808fa33c
MR
1137
1138altivec_deps="ppc"
1139ppc4xx_deps="ppc"
1140
1141vis_deps="sparc"
1142
7f8c3d1f 1143x86_64_suggest="cmov fast_cmov"
808fa33c
MR
1144amd3dnow_deps="mmx"
1145amd3dnowext_deps="amd3dnow"
9eeed841 1146mmx_deps="x86"
75aa95a6 1147mmx2_deps="mmx"
75aa95a6
DB
1148sse_deps="mmx"
1149ssse3_deps="sse"
9eeed841 1150
e939cedd 1151fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
669b5583 1152fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
e939cedd 1153fast_unaligned_if_any="armv6 ppc x86"
669b5583 1154
89e053f8 1155need_memalign="altivec neon sse"
6fec122a 1156inline_asm_deps="!tms470"
89e053f8 1157
b462d132
MR
1158symver_if_any="symver_asm_label symver_gnu_asm"
1159
26fbcc85
MR
1160# subsystems
1161mdct_select="fft"
1162rdft_select="fft"
1163
5666fd73 1164# decoders / encoders / hardware accelerators
49351479 1165aac_decoder_select="mdct rdft aac_parser"
26fbcc85
MR
1166aac_encoder_select="mdct"
1167ac3_decoder_select="mdct ac3_parser"
f4d608e3 1168alac_encoder_select="lpc"
b781cc12 1169amrnb_decoder_select="lsp"
084cbbaa 1170atrac1_decoder_select="mdct"
26fbcc85
MR
1171atrac3_decoder_select="mdct"
1172binkaudio_dct_decoder_select="mdct rdft dct"
1173binkaudio_rdft_decoder_select="mdct rdft"
4f034993 1174cavs_decoder_select="golomb"
26fbcc85 1175cook_decoder_select="mdct"
2eef7c62 1176cscd_decoder_suggest="zlib"
26fbcc85 1177dca_decoder_select="mdct"
e8ed9b7a 1178dnxhd_encoder_select="aandct"
2eef7c62 1179dxa_decoder_select="zlib"
baf91bb9 1180eac3_decoder_select="ac3_decoder"
84c04e25 1181eamad_decoder_select="aandct"
e8ed9b7a 1182eatgq_decoder_select="aandct"
d52b39c7 1183eatqi_decoder_select="aandct"
4f034993
MR
1184ffv1_decoder_select="golomb"
1185flac_decoder_select="golomb"
f4d608e3 1186flac_encoder_select="golomb lpc"
2eef7c62
AJ
1187flashsv_decoder_select="zlib"
1188flashsv_encoder_select="zlib"
4414137e 1189flv_decoder_select="h263_decoder"
4d4b4bd1 1190flv_encoder_select="h263_encoder"
e8ed9b7a 1191h261_encoder_select="aandct"
7f647ae0 1192h263_decoder_select="h263_parser"
e8ed9b7a 1193h263_encoder_select="aandct"
95a61cfc 1194h263_vaapi_hwaccel_select="vaapi h263_decoder"
4414137e 1195h263i_decoder_select="h263_decoder"
fe629c2d 1196h263p_encoder_select="h263_encoder"
4693b031 1197h264_decoder_select="golomb h264dsp"
92c6a099
LA
1198h264_dxva2_hwaccel_deps="dxva2api_h"
1199h264_dxva2_hwaccel_select="dxva2 h264_decoder"
17492d5e 1200h264_vaapi_hwaccel_select="vaapi"
95a61cfc 1201h264_vdpau_decoder_select="vdpau h264_decoder"
47a158cb 1202imc_decoder_select="fft mdct"
4f034993
MR
1203jpegls_decoder_select="golomb"
1204jpegls_encoder_select="golomb"
e8ed9b7a 1205ljpeg_encoder_select="aandct"
4f034993 1206loco_decoder_select="golomb"
e8ed9b7a 1207mjpeg_encoder_select="aandct"
2cca233b 1208mlp_decoder_select="mlp_parser"
d9da8f10
AJ
1209mp1float_decoder_select="dct"
1210mp2float_decoder_select="dct"
1211mp3adufloat_decoder_select="dct"
1212mp3float_decoder_select="dct"
1213mp3on4float_decoder_select="dct"
e8ed9b7a
DB
1214mpeg1video_encoder_select="aandct"
1215mpeg2video_encoder_select="aandct"
4414137e 1216mpeg4_decoder_select="h263_decoder mpeg4video_parser"
c37de5e1 1217mpeg4_encoder_select="h263_encoder"
95a61cfc 1218mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
95a61cfc 1219mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
164aab02
LA
1220mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1221mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
95a61cfc 1222mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
95a61cfc 1223mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
70e0c871 1224mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
8f6f050a 1225mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
4d8eecf4 1226mpeg_xvmc_decoder_select="mpegvideo_decoder"
4414137e 1227msmpeg4v1_decoder_select="h263_decoder"
4e169d89 1228msmpeg4v1_encoder_select="h263_encoder"
4414137e 1229msmpeg4v2_decoder_select="h263_decoder"
4e169d89 1230msmpeg4v2_encoder_select="h263_encoder"
4414137e 1231msmpeg4v3_decoder_select="h263_decoder"
4e169d89 1232msmpeg4v3_encoder_select="h263_encoder"
26fbcc85
MR
1233nellymoser_decoder_select="mdct"
1234nellymoser_encoder_select="mdct"
2eef7c62
AJ
1235png_decoder_select="zlib"
1236png_encoder_select="zlib"
b781cc12 1237qcelp_decoder_select="lsp"
26fbcc85 1238qdm2_decoder_select="mdct rdft"
31ed3f1f 1239ra_144_encoder_select="lpc"
a8beb22f 1240rv10_decoder_select="h263_decoder"
b2bf38b4 1241rv10_encoder_select="h263_encoder"
a8beb22f 1242rv20_decoder_select="h263_decoder"
b2bf38b4 1243rv20_encoder_select="h263_encoder"
4693b031
MR
1244rv30_decoder_select="golomb h264dsp"
1245rv40_decoder_select="golomb h264dsp"
4f034993 1246shorten_decoder_select="golomb"
b781cc12 1247sipr_decoder_select="lsp"
05aec7bb
MR
1248snow_decoder_select="dwt"
1249snow_encoder_select="aandct dwt"
4f034993
MR
1250sonic_decoder_select="golomb"
1251sonic_encoder_select="golomb"
1252sonic_ls_encoder_select="golomb"
19ecfb8a 1253svq1_encoder_select="aandct"
4693b031 1254svq3_decoder_select="golomb h264dsp"
bee2eac5 1255svq3_decoder_suggest="zlib"
4eef77c1 1256theora_decoder_select="vp3_decoder"
2eef7c62
AJ
1257tiff_decoder_suggest="zlib"
1258tiff_encoder_suggest="zlib"
aec09a00 1259truehd_decoder_select="mlp_decoder"
2eef7c62 1260tscc_decoder_select="zlib"
b781cc12 1261twinvq_decoder_select="mdct lsp"
f95bfab0 1262vc1_decoder_select="h263_decoder"
9104cd51 1263vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
f0f86627 1264vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
95a61cfc 1265vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
95a61cfc 1266vc1_vdpau_decoder_select="vdpau vc1_decoder"
26fbcc85
MR
1267vorbis_decoder_select="mdct"
1268vorbis_encoder_select="mdct"
e82dc4c9
DB
1269vp6a_decoder_select="vp6_decoder"
1270vp6f_decoder_select="vp6_decoder"
0912db02 1271vp8_decoder_select="h264dsp"
084cbbaa 1272wmapro_decoder_select="mdct"
26fbcc85
MR
1273wmav1_decoder_select="mdct"
1274wmav1_encoder_select="mdct"
1275wmav2_decoder_select="mdct"
1276wmav2_encoder_select="mdct"
df0a6d0d 1277wmavoice_decoder_select="lsp rdft dct mdct"
f95bfab0 1278wmv1_decoder_select="h263_decoder"
665507aa 1279wmv1_encoder_select="h263_encoder"
f95bfab0 1280wmv2_decoder_select="h263_decoder"
1746e2a9 1281wmv2_encoder_select="h263_encoder"
015f8ee0 1282wmv3_decoder_select="vc1_decoder"
f0f86627 1283wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
015f8ee0
DB
1284wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1285wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
2eef7c62
AJ
1286zlib_decoder_select="zlib"
1287zlib_encoder_select="zlib"
1288zmbv_decoder_select="zlib"
1289zmbv_encoder_select="zlib"
30fd06be 1290
0afab17e 1291vaapi_deps="va_va_h"
c89c96e9
MR
1292vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1293
28b80940 1294# parsers
4693b031 1295h264_parser_select="golomb h264dsp"
28b80940 1296
f1e94694
DB
1297# bitstream_filters
1298aac_adtstoasc_bsf_select="aac_parser"
1299
912f3148 1300# external libraries
1b71f045 1301libdirac_decoder_deps="libdirac !libschroedinger"
690bfceb 1302libdirac_encoder_deps="libdirac"
c9171a83 1303libfaac_encoder_deps="libfaac"
299c77d5
MR
1304libgsm_decoder_deps="libgsm"
1305libgsm_encoder_deps="libgsm"
8ffed8d8
MR
1306libgsm_ms_decoder_deps="libgsm"
1307libgsm_ms_encoder_deps="libgsm"
1cc60c47 1308libmp3lame_encoder_deps="libmp3lame"
0b175caa
DB
1309libopencore_amrnb_decoder_deps="libopencore_amrnb"
1310libopencore_amrnb_encoder_deps="libopencore_amrnb"
1311libopencore_amrwb_decoder_deps="libopencore_amrwb"
9a77d59a 1312libopenjpeg_decoder_deps="libopenjpeg"
f7cd9eed
AS
1313libschroedinger_decoder_deps="libschroedinger"
1314libschroedinger_encoder_deps="libschroedinger"
ae14f311 1315libspeex_decoder_deps="libspeex"
150d2772 1316libtheora_encoder_deps="libtheora"
b0caf888 1317libvorbis_encoder_deps="libvorbis"
8299a7f8 1318libvpx_decoder_deps="libvpx"
ee0e9146 1319libvpx_encoder_deps="libvpx"
1cc60c47
DB
1320libx264_encoder_deps="libx264"
1321libxvid_encoder_deps="libxvid"
30fd06be 1322
912f3148 1323# demuxers / muxers
03a76ba9 1324ac3_demuxer_deps="ac3_parser"
647c2356 1325asf_stream_muxer_select="asf_muxer"
4e622dea
SS
1326avisynth_demuxer_deps="avisynth"
1327dirac_demuxer_deps="dirac_parser"
5b423887 1328eac3_demuxer_select="ac3_parser"
647c2356 1329ipod_muxer_select="mov_muxer"
4e622dea
SS
1330libnut_demuxer_deps="libnut"
1331libnut_muxer_deps="libnut"
647c2356 1332matroska_audio_muxer_select="matroska_muxer"
4e622dea
SS
1333matroska_demuxer_suggest="zlib bzlib"
1334mov_demuxer_suggest="zlib"
1335mp3_demuxer_deps="mpegaudio_parser"
647c2356
DB
1336mp4_muxer_select="mov_muxer"
1337mpegtsraw_demuxer_select="mpegts_demuxer"
1338mxf_d10_muxer_select="mxf_muxer"
24ca518b 1339ogg_demuxer_select="golomb"
647c2356 1340psp_muxer_select="mov_muxer"
4e622dea 1341rtsp_demuxer_deps="sdp_demuxer"
6f5a3d0a
MS
1342rtsp_muxer_deps="sdp_demuxer"
1343rtsp_muxer_select="rtp_muxer"
4e622dea 1344sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
0298cc04 1345sdp_demuxer_select="asf_demuxer rm_demuxer"
f1e94694 1346spdif_muxer_select="aac_parser"
647c2356
DB
1347tg2_muxer_select="mov_muxer"
1348tgp_muxer_select="mov_muxer"
6bdaa5f4 1349w64_demuxer_deps="wav_demuxer"
4e622dea
SS
1350
1351# indevs / outdevs
38e54a75
SS
1352alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1353alsa_indev_extralibs="-lasound"
1354alsa_outdev_deps="alsa_asoundlib_h"
1355alsa_outdev_extralibs="-lasound"
38e54a75 1356bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
38e54a75
SS
1357dv1394_indev_deps="dv1394 dv_demuxer"
1358jack_indev_deps="jack_jack_h"
1359jack_indev_extralibs="-ljack"
1360libdc1394_indev_deps="libdc1394"
38e54a75
SS
1361oss_indev_deps_any="soundcard_h sys_soundcard_h"
1362oss_outdev_deps_any="soundcard_h sys_soundcard_h"
38e54a75
SS
1363v4l_indev_deps="linux_videodev_h"
1364v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1365vfwcap_indev_deps="capCreateCaptureWindow"
a1b3c5a3 1366vfwcap_indev_extralibs="-lavicap32"
38e54a75 1367x11_grab_device_indev_deps="x11grab XShmCreateImage"
781c1aa6 1368x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
30fd06be 1369
912f3148 1370# protocols
3fff6382 1371gopher_protocol_deps="network"
c08fb000 1372http_protocol_deps="network"
279a0c97 1373http_protocol_select="tcp_protocol"
b4cf3f6c 1374mmst_protocol_deps="network"
deeb7012
MS
1375rtmp_protocol_select="tcp_protocol"
1376rtp_protocol_select="udp_protocol"
c08fb000
AB
1377tcp_protocol_deps="network"
1378udp_protocol_deps="network"
1379
f7679c54 1380# filters
81124ba0 1381movie_filter_deps="avfilter_lavf"
5a0f7131
MR
1382avfilter_lavf_deps="avformat"
1383
1384# libraries
1385avdevice_deps="avcodec avformat"
1386avformat_deps="avcodec"
f7679c54 1387
912f3148 1388# programs
5a0f7131 1389ffmpeg_deps="avcodec avformat swscale"
21ae6790 1390ffmpeg_select="buffer_filter"
5a0f7131 1391ffplay_deps="avcodec avformat swscale sdl"
43689902 1392ffplay_select="rdft"
336ce917 1393ffprobe_deps="avcodec avformat"
5a0f7131 1394ffserver_deps="avformat ffm_muxer rtp_protocol rtsp_demuxer"
4ec45764 1395ffserver_extralibs='$ldl'
a2830dca 1396
c73f65d9 1397doc_deps="texi2html"
912f3148 1398
57442411
MR
1399# tests
1400
1401test_deps(){
1402 suf1=$1
1403 suf2=$2
1404 shift 2
1405 for v; do
1406 dep=${v%=*}
1407 tests=${v#*=}
1408 for name in ${tests}; do
1409 eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1410 done
1411 done
1412}
1413
1414test_deps _encoder _decoder \
1415 ac3 \
1416 adpcm_g726=g726 \
1417 adpcm_ima_qt \
1418 adpcm_ima_wav \
1419 adpcm_ms \
1420 adpcm_swf \
1421 adpcm_yamaha=adpcm_yam \
1422 alac \
1423 asv1 \
1424 asv2 \
1425 bmp \
1426 dnxhd="hdxhd_1080i dnxhd_720p dnxhd_720p_rd" \
1427 dvvideo="dv dv50" \
1428 ffv1 \
1429 flac \
1430 flashsv \
1431 flv \
1432 gif \
1433 h261 \
1434 h263="h263 h263p" \
1435 huffyuv \
1436 jpegls \
1437 mjpeg="jpg mjpeg ljpeg" \
1438 mp2 \
1439 mpeg1video="mpeg mpeg1b" \
1440 mpeg2video="mpeg2 mpeg2thread" \
1441 mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc" \
1442 msmpeg4v1=msmpeg4 \
1443 msmpeg4v2 \
1444 pbm=pbmpipe \
1445 pcx \
1446 pgm="pgm pgmpipe" \
1447 ppm="ppm ppmpipe" \
1448 rawvideo="rgb yuv" \
1449 roq \
1450 rv10 \
1451 rv20 \
1452 sgi \
1453 snow="snow snowll" \
1454 svq1 \
1455 targa=tga \
1456 tiff \
1457 wmav1 \
1458 wmav2 \
1459 wmv1 \
1460 wmv2 \
1461
1462test_deps _muxer _demuxer \
1463 aiff \
1464 pcm_alaw=alaw \
1465 asf \
1466 au \
1467 avi \
1468 dv=dv_fmt \
1469 ffm \
1470 flv=flv_fmt \
1471 gxf \
1472 matroska=mkv \
1473 mmf \
1474 mov \
1475 pcm_mulaw=mulaw \
1476 mxf \
1477 nut \
1478 ogg \
1479 rawvideo=pixfmt \
1480 rm \
1481 swf \
1482 mpegts=ts \
1483 voc \
1484 wav \
1485 yuv4mpegpipe=yuv4mpeg \
1486
1487mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
57442411 1488
de6d9b64 1489# default parameters
8a608357 1490
19bd477d 1491logfile="config.log"
8a608357
MR
1492
1493# installation paths
c9d19248
MR
1494prefix_default="/usr/local"
1495bindir_default='${prefix}/bin'
14a8acf1 1496datadir_default='${prefix}/share/ffmpeg'
c9d19248
MR
1497incdir_default='${prefix}/include'
1498libdir_default='${prefix}/lib'
1499mandir_default='${prefix}/share/man'
1500shlibdir_default="$libdir_default"
8a608357
MR
1501
1502# toolchain
121d78d0 1503ar_default="ar"
13c7df3d 1504cc_default="gcc"
a3d7c197 1505cc_version=\"unknown\"
9da6609f 1506host_cc_default="gcc"
11e6d03a 1507ln_s="ln -sf"
89641463 1508nm_default="nm"
11e6d03a 1509objformat="elf"
be7109c1 1510ranlib="ranlib"
4f837398 1511strip_default="strip"
11e6d03a 1512yasmexe="yasm"
301ab19d 1513nogas=":"
8a608357 1514
8182dc34
MR
1515nm_opts='-g'
1516
8a608357 1517# machine
8d4c00ed 1518arch_default=$(uname -m)
38d0a8aa 1519cpu="generic"
8a608357 1520
8a608357 1521# OS
8d4c00ed
MR
1522target_os_default=$(tolower $(uname -s))
1523host_os=$target_os_default
8a608357 1524
8a608357 1525# configurable options
5a0f7131
MR
1526enable avcodec
1527enable avdevice
cccc039f 1528enable avfilter
5a0f7131 1529enable avformat
dc4f5a1c 1530enable avutil
c8a4ae00 1531enable asm
497237c7 1532enable debug
c73f65d9 1533enable doc
aa033b1e 1534enable fastdiv
497237c7
RP
1535enable ffmpeg
1536enable ffplay
336ce917 1537enable ffprobe
497237c7 1538enable ffserver
497237c7
RP
1539enable mpegaudio_hp
1540enable network
8400d6b8 1541enable optimizations
497237c7 1542enable protocols
530dc538 1543enable static
87a0fb62 1544enable stripping
5a0f7131 1545enable swscale
a9ddb5b1 1546enable swscale_alpha
8a608357 1547
8a608357 1548# build settings
9987769a 1549SHFLAGS='-shared -Wl,-soname,$$(@F)'
c536cb09 1550FFSERVERLDFLAGS=-Wl,-E
f3ec2d46
SG
1551LIBPREF="lib"
1552LIBSUF=".a"
c5f14466
RP
1553FULLNAME='$(NAME)$(BUILDSUF)'
1554LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
f3ec2d46
SG
1555SLIBPREF="lib"
1556SLIBSUF=".so"
c5f14466 1557SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
b29bddab
DB
1558SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1559SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
6cfac0e9 1560LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
ef0bc4c9 1561
7e6c86e6
MR
1562CC_O='-o $@'
1563
f0125de9 1564host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
9da6609f
MR
1565host_libs='-lm'
1566
9b861379 1567target_path='$(CURDIR)'
a7ada2ba 1568
a158446b
MR
1569# since the object filename is not given with the -MM flag, the compiler
1570# is only able to print the basename, and we must add the path ourselves
c1c3933a 1571DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
d8059267 1572DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
315c741d 1573
c597172e 1574# find source path
5e622c40 1575source_path="$(dirname "$0")"
497237c7 1576enable source_path_used
24524f36 1577if test -f configure; then
5e622c40 1578 source_path="$(pwd)"
497237c7 1579 disable source_path_used
c597172e 1580else
5e622c40 1581 source_path="$(cd "$source_path"; pwd)"
c597172e 1582 echo "$source_path" | grep -q '[[:blank:]]' &&
7483e694 1583 die "Out of tree builds are impossible with whitespace in source path."
337cee68
MC
1584 test -e "$source_path/config.h" &&
1585 die "Out of tree builds are impossible with config.h in source dir."
c597172e
MR
1586fi
1587
13cbe2c0 1588for v in "$@"; do
b04251c5
MR
1589 r=${v#*=}
1590 l=${v%"$r"}
1591 r=$(sh_quote "$r")
13cbe2c0
MR
1592 FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1593done
c597172e 1594
73ef8980
MR
1595find_things(){
1596 thing=$1
1597 pattern=$2
1598 file=$source_path/$3
932ccf39 1599 sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
73ef8980
MR
1600}
1601
1602ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
1603DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
5666fd73 1604HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
73ef8980
MR
1605PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
1606BSF_LIST=$(find_things bsf BSF libavcodec/allcodecs.c)
1607MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
1608DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
38e54a75
SS
1609OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
1610INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
73ef8980 1611PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
81124ba0 1612FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
c597172e 1613
57442411
MR
1614find_tests(){
1615 map 'echo ${v}_test' $(ls "$source_path"/tests/ref/$1)
1616}
1617
1618ACODEC_TESTS=$(find_tests acodec)
1619VCODEC_TESTS=$(find_tests vsynth1)
1620LAVF_TESTS=$(find_tests lavf)
1621
40fe5019
MR
1622pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1623
8469ae22
MR
1624for n in $COMPONENT_LIST; do
1625 v=$(toupper ${n%s})_LIST
1626 eval enable \$$v
1627 eval ${n}_if_any="\$$v"
1628done
1629
57442411 1630enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS
c597172e
MR
1631
1632die_unknown(){
1633 echo "Unknown option \"$1\"."
1634 echo "See $0 --help for available options."
1635 exit 1
1636}
1637
794f8e97 1638show_list() {
bf0c4afa
RP
1639 suffix=_$1
1640 shift
2b444ea7 1641 echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
794f8e97
PI
1642 exit 0
1643}
1644
c597172e 1645for opt do
7483e694
DB
1646 optval="${opt#*=}"
1647 case "$opt" in
0f010b2f 1648 --extra-ldflags=*) add_ldflags $optval
7483e694 1649 ;;
0f010b2f 1650 --extra-libs=*) add_extralibs $optval
7483e694 1651 ;;
8fb1cb58 1652 --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
9aa8ed9d 1653 ;;
40bcf4c7
BL
1654 --enable-debug=*) debuglevel="$optval"
1655 ;;
36e2dea0 1656 --disable-everything)
1b15dc3c 1657 map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
36e2dea0 1658 ;;
7483e694 1659 --enable-*=*|--disable-*=*)
8b93ddc3 1660 eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
be8f2501
MR
1661 is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1662 eval list=\$$(toupper $thing)_LIST
8b93ddc3
MR
1663 name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1664 $action $(filter "$name" $list)
7483e694
DB
1665 ;;
1666 --enable-?*|--disable-?*)
5e622c40 1667 eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
e3773a55 1668 if is_in $option $COMPONENT_LIST; then
fed5d54b 1669 test $action = disable && action=unset
e3773a55
MR
1670 eval $action \$$(toupper ${option%s})_LIST
1671 elif is_in $option $CMDLINE_SELECT; then
1672 $action $option
1673 else
1674 die_unknown $opt
1675 fi
7483e694
DB
1676 ;;
1677 --list-*)
1678 NAME="${opt#--list-}"
1679 is_in $NAME $COMPONENT_LIST || die_unknown $opt
1680 NAME=${NAME%s}
1681 eval show_list $NAME \$$(toupper $NAME)_LIST
1682 ;;
1683 --help|-h) show_help
1684 ;;
1685 *)
884a36a7 1686 optname="${opt%%=*}"
26759c44
MR
1687 optname="${optname#--}"
1688 optname=$(echo "$optname" | sed 's/-/_/g')
89f2932b
MR
1689 if is_in $optname $CMDLINE_SET; then
1690 eval $optname='$optval'
1691 elif is_in $optname $CMDLINE_APPEND; then
1692 append $optname "$optval"
1693 else
1694 die_unknown $opt
1695 fi
7483e694
DB
1696 ;;
1697 esac
c597172e
MR
1698done
1699
bcea99bb
MR
1700disabled logging && logfile=/dev/null
1701
13cbe2c0 1702echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
bcea99bb
MR
1703set >> $logfile
1704
9da6609f
MR
1705test -n "$cross_prefix" && enable cross_compile
1706
8d4c00ed
MR
1707if enabled cross_compile; then
1708 test -n "$arch" && test -n "$target_os" ||
1709 die "Must specify target arch and OS when cross-compiling"
1710fi
1711
1712set_default arch target_os
1713
121d78d0 1714ar_default="${cross_prefix}${ar_default}"
11e6d03a 1715cc_default="${cross_prefix}${cc_default}"
20e0ed95 1716nm_default="${cross_prefix}${nm_default}"
adb2b908 1717ranlib="${cross_prefix}${ranlib}"
4f837398 1718strip_default="${cross_prefix}${strip_default}"
adb2b908 1719
c5200f17
MR
1720sysinclude_default="${sysroot}/usr/include"
1721
4f837398 1722set_default cc nm strip sysinclude
9da6609f
MR
1723enabled cross_compile || host_cc_default=$cc
1724set_default host_cc
13c7df3d 1725
82bb3329
MR
1726exesuf() {
1727 case $1 in
1728 mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1729 esac
1730}
1731
1732EXESUF=$(exesuf $target_os)
1733HOSTEXESUF=$(exesuf $host_os)
c0f5b7f1 1734
e4e69e0b 1735# set temporary file name
a49d42c2 1736: ${TMPDIR:=$TEMPDIR}
c51fafa1 1737: ${TMPDIR:=$TMP}
a49d42c2 1738: ${TMPDIR:=/tmp}
e4e69e0b 1739
54460a83
MR
1740if ! check_cmd type mktemp; then
1741 # simple replacement for missing mktemp
1742 # NOT SAFE FOR GENERAL USE
1743 mktemp(){
1744 echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1745 }
1746fi
1747
1748tmpfile(){
1749 tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1750 (set -C; exec > $tmp) 2>/dev/null ||
f7ba16a7 1751 die "Unable to create temporary file in $TMPDIR."
54460a83
MR
1752 append TMPFILES $tmp
1753 eval $1=$tmp
1754}
1755
1756trap 'rm -f -- $TMPFILES' EXIT
1757trap exit HUP INT TERM
1758
1759tmpfile TMPC .c
1760tmpfile TMPE $EXESUF
1761tmpfile TMPH .h
1762tmpfile TMPO .o
1763tmpfile TMPS .S
a482e61b 1764tmpfile TMPV .ver
54460a83
MR
1765tmpfile TMPSH .sh
1766
1767unset -f mktemp
e4e69e0b 1768
993f2d0f
MR
1769# make sure we can execute files in $TMPDIR
1770cat > $TMPSH 2>> $logfile <<EOF
1771#! /bin/sh
1772EOF
1773chmod +x $TMPSH >> $logfile 2>&1
1774if ! $TMPSH >> $logfile 2>&1; then
1775 cat <<EOF
1776Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
1777variable to another directory and make sure that it is not mounted noexec.
1778EOF
1779 die "Sanity test failed."
1780fi
993f2d0f 1781
19b4c628
MR
1782filter_cflags=echo
1783filter_cppflags=echo
1784filter_asflags=echo
1785
8f0c157a 1786if $cc -v 2>&1 | grep -qi ^gcc; then
629687f6 1787 cc_type=gcc
a3d7c197 1788 cc_version=__VERSION__
aef6bd1b
MR
1789 if ! $cc -dumpversion | grep -q '^2\.'; then
1790 CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1791 AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1792 fi
14ca9cd0
MR
1793 speed_cflags='-O3'
1794 size_cflags='-Os'
629687f6
MR
1795elif $cc --version 2>/dev/null | grep -q Intel; then
1796 cc_type=icc
6e3fa35d 1797 cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
07dec06e
MR
1798 CC_DEPFLAGS='-MMD'
1799 AS_DEPFLAGS='-MMD'
14ca9cd0
MR
1800 speed_cflags='-O3'
1801 size_cflags='-Os'
b05394a0 1802 noopt_cflags='-O1'
629687f6
MR
1803elif $cc -v 2>&1 | grep -q xlc; then
1804 cc_type=xlc
6e3fa35d 1805 cc_version="AV_STRINGIFY(__IBMC__)"
14ca9cd0
MR
1806 speed_cflags='-O5'
1807 size_cflags='-O5 -qcompact'
df442a8d
MR
1808elif $cc -V 2>/dev/null | grep -q Compaq; then
1809 cc_type=ccc
6e3fa35d 1810 cc_version="AV_STRINGIFY(__DECC_VER)"
d8059267 1811 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
03754fcd 1812 debuglevel=3
df442a8d 1813 add_ldflags -Wl,-z,now # calls to libots crash without this
14ca9cd0
MR
1814 speed_cflags='-fast'
1815 size_cflags='-O1'
6a0d5493 1816elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
03e37762
MR
1817 test -d "$sysroot" || die "No valid sysroot specified."
1818 cc_type=armcc
6e3fa35d 1819 cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
03e37762
MR
1820 armcc_conf="$PWD/armcc.conf"
1821 $cc --arm_linux_configure \
1822 --arm_linux_config_file="$armcc_conf" \
1823 --configure_sysroot="$sysroot" \
1824 --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1825 die "Error creating armcc configuration file."
1826 cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
75800dce 1827 as_default="${cross_prefix}gcc"
07dec06e
MR
1828 CC_DEPFLAGS='-MMD'
1829 AS_DEPFLAGS='-MMD'
14ca9cd0
MR
1830 speed_cflags='-O3'
1831 size_cflags='-Os'
6fec122a
MR
1832elif $cc -version 2>/dev/null | grep -q TMS470; then
1833 cc_type=tms470
6e3fa35d 1834 cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
6fec122a
MR
1835 cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1836 CC_O='-fr=$(@D)'
1837 as_default="${cross_prefix}gcc"
1838 ld_default="${cross_prefix}gcc"
6fec122a
MR
1839 TMPO=$(basename $TMPC .c).o
1840 append TMPFILES $TMPO
1841 add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
07dec06e
MR
1842 CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1843 AS_DEPFLAGS='-MMD'
14ca9cd0
MR
1844 speed_cflags='-O3 -mf=5'
1845 size_cflags='-O3 -mf=2'
6fec122a
MR
1846 filter_cflags=tms470_flags
1847 tms470_flags(){
1848 for flag; do
1849 case $flag in
1850 -march=*|-mcpu=*)
1851 case "${flag#*=}" in
1852 armv7-a|cortex-a*) echo -mv=7a8 ;;
1853 armv7-r|cortex-r*) echo -mv=7r4 ;;
1854 armv7-m|cortex-m*) echo -mv=7m3 ;;
1855 armv6*|arm11*) echo -mv=6 ;;
1856 armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1857 echo -mv=5e ;;
1858 armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
1859 esac
1860 ;;
1861 -mfpu=neon) echo --float_support=vfpv3 --neon ;;
1862 -mfpu=vfp) echo --float_support=vfpv2 ;;
5fcb865b 1863 -mfpu=vfpv3) echo --float_support=vfpv3 ;;
a2709020 1864 -msoft-float) echo --float_support=vfplib ;;
14ca9cd0 1865 -O[0-3]|-mf=*) echo $flag ;;
6fec122a 1866 -g) echo -g -mn ;;
587d24ff 1867 -pds=*) echo $flag ;;
6fec122a
MR
1868 esac
1869 done
1870 }
06da6943
DC
1871elif $cc -v 2>&1 | grep -q clang; then
1872 cc_type=clang
b67a8f49
DC
1873 $cc -dM -E $TMPC | grep -q __clang_version__ &&
1874 cc_version=__clang_version__ || cc_version=__VERSION__
06da6943
DC
1875 CC_DEPFLAGS='-MMD'
1876 AS_DEPFLAGS='-MMD'
14ca9cd0
MR
1877 speed_cflags='-O3'
1878 size_cflags='-Os'
2a472e9c
MK
1879elif $cc -V 2>&1 | grep -q Sun; then
1880 cc_type=suncc
1881 cc_version="AV_STRINGIFY(__SUNPRO_C)"
faa374b7 1882 DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2a472e9c 1883 DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
14ca9cd0
MR
1884 speed_cflags='-O5'
1885 size_cflags='-O5 -xspace'
03279bbe
MK
1886 filter_cflags=suncc_flags
1887 suncc_flags(){
1888 for flag; do
1889 case $flag in
1890 -march=*|-mcpu=*)
1891 case "${flag#*=}" in
1892 native) echo -xtarget=native ;;
87ddc38b 1893 v9|niagara) echo -xarch=sparc ;;
03279bbe 1894 ultrasparc) echo -xarch=sparcvis ;;
87ddc38b 1895 ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
03279bbe
MK
1896 i586|pentium) echo -xchip=pentium ;;
1897 i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
1898 pentium3*|c3-2) echo -xtarget=pentium3 ;;
1899 pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
1900 pentium4*) echo -xtarget=pentium4 ;;
1901 prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
1902 *-sse3) echo -xarch=sse3 ;;
1903 core2) echo -xarch=ssse3 -xchip=core2 ;;
1904 amdfam10|barcelona) echo -xarch=sse4_1 ;;
1905 athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
1906 k8|opteron|athlon64|athlon-fx)
1907 echo -xarch=sse2a ;;
1908 athlon*) echo -xarch=pentium_proa ;;
1909 esac
1910 ;;
1911 -std=c99) echo -xc99 ;;
1912 -fomit-frame-pointer) echo -xregs=frameptr ;;
1913 -fPIC) echo -KPIC -xcode=pic32 ;;
03279bbe
MK
1914 -W*,*) echo $flag ;;
1915 -f*-*|-W*) ;;
1916 *) echo $flag ;;
1917 esac
1918 done
1919 }
629687f6
MR
1920fi
1921
851ffa80
MR
1922test -n "$cc_type" && enable $cc_type ||
1923 warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
629687f6 1924
75bafbac 1925: ${as_default:=$cc}
50567afa 1926: ${dep_cc_default:=$cc}
684b28e0 1927: ${ld_default:=$cc}
121d78d0 1928set_default ar as dep_cc ld
75800dce 1929
07dec06e
MR
1930test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1931test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1932
7f32f40c 1933add_cflags $extra_cflags
2f2e6c7c 1934add_asflags $extra_cflags
7f32f40c 1935
154d432c
MR
1936if test -n "$sysroot"; then
1937 case "$cc_type" in
1938 gcc)
467256f2 1939 add_cppflags --sysroot="$sysroot"
154d432c
MR
1940 add_ldflags --sysroot="$sysroot"
1941 ;;
6fec122a
MR
1942 tms470)
1943 add_cppflags -I"$sysinclude"
1944 add_ldflags --sysroot="$sysroot"
1945 ;;
06da6943 1946 clang)
4def700e
DC
1947 add_cppflags -isysroot "$sysroot"
1948 add_ldflags -isysroot "$sysroot"
06da6943 1949 ;;
154d432c
MR
1950 esac
1951fi
1952
d22c13a8
MR
1953if test "$cpu" = host; then
1954 enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1955
1956 case "$cc_type" in
1957 gcc)
1958 check_native(){
1959 $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
27ce1be8
MR
1960 sed -n "/$1=/{
1961 s/.*$1=\\([^ ]*\\).*/\\1/
1962 p
1963 q
1964 }" $TMPE
d22c13a8
MR
1965 }
1966 cpu=$(check_native -march || check_native -mcpu)
1967 ;;
1968 esac
1969
1970 test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1971fi
1972
e939cedd
MR
1973# Deal with common $arch aliases
1974case "$arch" in
1975 arm*)
1976 arch="arm"
1977 ;;
1978 mips|mipsel|IP*)
1979 arch="mips"
1980 ;;
47b1860e 1981 mips64*)
e939cedd
MR
1982 arch="mips"
1983 subarch="mips64"
1984 ;;
1985 parisc|hppa)
1986 arch="parisc"
1987 ;;
1988 parisc64|hppa64)
1989 arch="parisc"
1990 subarch="parisc64"
1991 ;;
1992 "Power Macintosh"|ppc|powerpc)
1993 arch="ppc"
1994 ;;
47b1860e 1995 ppc64|powerpc64)
e939cedd
MR
1996 arch="ppc"
1997 subarch="ppc64"
1998 ;;
1999 s390|s390x)
2000 arch="s390"
2001 ;;
2002 sh4|sh)
2003 arch="sh4"
2004 ;;
2005 sun4u|sparc64)
2006 arch="sparc"
2007 subarch="sparc64"
2008 ;;
2009 i[3-6]86|i86pc|BePC|x86_64|amd64)
2010 arch="x86"
2011 ;;
2012esac
2013
851ffa80 2014is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
343aef9b 2015enable $arch
e939cedd 2016
df5cdc24 2017# Add processor-specific flags
5d54c126
MR
2018if test "$cpu" = generic; then
2019 : do nothing
2020elif enabled ppc; then
343aef9b 2021
56348891
MR
2022 case $(tolower $cpu) in
2023 601|ppc601|powerpc601)
9dbd5c3d 2024 cpuflags="-mcpu=601"
64ad53ff 2025 disable altivec
9dbd5c3d 2026 ;;
56348891 2027 603*|ppc603*|powerpc603*)
9dbd5c3d 2028 cpuflags="-mcpu=603"
64ad53ff 2029 disable altivec
9dbd5c3d 2030 ;;
56348891 2031 604*|ppc604*|powerpc604*)
9dbd5c3d 2032 cpuflags="-mcpu=604"
64ad53ff 2033 disable altivec
9dbd5c3d 2034 ;;
56348891 2035 g3|75*|ppc75*|powerpc75*)
9dbd5c3d 2036 cpuflags="-mcpu=750 -mpowerpc-gfxopt"
64ad53ff 2037 disable altivec
9dbd5c3d 2038 ;;
56348891 2039 g4|745*|ppc745*|powerpc745*)
9dbd5c3d
MR
2040 cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2041 ;;
56348891 2042 74*|ppc74*|powerpc74*)
9dbd5c3d
MR
2043 cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2044 ;;
56348891 2045 g5|970|ppc970|powerpc970|power4*)
9dbd5c3d
MR
2046 cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2047 ;;
56348891 2048 cell)
9dbd5c3d
MR
2049 cpuflags="-mcpu=cell"
2050 enable ldbrx
2051 ;;
7b0b81a1
AL
2052 e500v2)
2053 cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2054 disable altivec
2055 ;;
2056 e500)
2057 cpuflags="-mcpu=8540 -mhard-float"
2058 disable altivec
2059 ;;
9dbd5c3d 2060 esac
343aef9b
MR
2061
2062elif enabled x86; then
2063
9dbd5c3d
MR
2064 case $cpu in
2065 i[345]86|pentium)
2066 cpuflags="-march=$cpu"
2067 disable mmx
2068 ;;
2069 # targets that do NOT support conditional mov (cmov)
2070 pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2071 cpuflags="-march=$cpu"
2072 disable cmov
2073 ;;
2074 # targets that do support conditional mov (cmov)
a65e687b 2075 i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona)
9dbd5c3d
MR
2076 cpuflags="-march=$cpu"
2077 enable cmov
2078 enable fast_cmov
2079 ;;
2080 # targets that do support conditional mov but on which it's slow
2081 pentium4|pentium4m|prescott|nocona)
2082 cpuflags="-march=$cpu"
2083 enable cmov
2084 disable fast_cmov
2085 ;;
2086 esac
343aef9b
MR
2087
2088elif enabled sparc; then
2089
9dbd5c3d 2090 case $cpu in
26b7199e
MK
2091 niagara)
2092 cpuflags="-mcpu=$cpu"
2093 disable vis
2094 ;;
9dbd5c3d
MR
2095 sparc64)
2096 cpuflags="-mcpu=v9"
2097 ;;
2098 esac
343aef9b
MR
2099
2100elif enabled arm; then
2101
34ba23c9
MR
2102 case $cpu in
2103 armv*)
2104 cpuflags="-march=$cpu"
2105 ;;
2106 *)
2107 cpuflags="-mcpu=$cpu"
2108 ;;
2109 esac
343aef9b
MR
2110
2111elif enabled alpha; then
2112
34ba23c9 2113 enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
343aef9b
MR
2114
2115elif enabled bfin; then
2116
34ba23c9 2117 cpuflags="-mcpu=$cpu"
343aef9b
MR
2118
2119elif enabled mips; then
2120
34ba23c9 2121 cpuflags="-march=$cpu"
343aef9b
MR
2122
2123elif enabled avr32; then
2124
9dbd5c3d
MR
2125 case $cpu in
2126 ap7[02]0[0-2])
2127 subarch="avr32_ap"
2128 cpuflags="-mpart=$cpu"
2129 ;;
2130 ap)
2131 subarch="avr32_ap"
2132 cpuflags="-march=$cpu"
2133 ;;
2134 uc3[ab]*)
2135 subarch="avr32_uc"
2136 cpuflags="-mcpu=$cpu"
2137 ;;
2138 uc)
2139 subarch="avr32_uc"
2140 cpuflags="-march=$cpu"
2141 ;;
2142 esac
df5cdc24 2143
343aef9b
MR
2144fi
2145
df5cdc24
MR
2146add_cflags $cpuflags
2147add_asflags $cpuflags
2148
993f2d0f
MR
2149# compiler sanity check
2150check_exec <<EOF
2151int main(void){ return 0; }
2152EOF
2153if test "$?" != 0; then
2154 echo "$cc is unable to create an executable file."
2155 if test -z "$cross_prefix" && ! enabled cross_compile ; then
2156 echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2157 echo "Only do this if you know what cross compiling means."
2158 fi
2159 die "C compiler test failed."
2160fi
2161
38a9c529 2162add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
e9b9a2f8 2163check_cflags -std=c99
50a334e4 2164check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
9d821fc2
DB
2165#include <stdlib.h>
2166EOF
50a334e4 2167check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
9d821fc2
DB
2168#include <stdlib.h>
2169EOF
e9b9a2f8 2170
f0125de9
MR
2171check_host_cflags -std=c99
2172
b24dbcbd 2173case "$arch" in
e939cedd 2174 alpha|ia64|mips|parisc|sparc)
8a3c8627 2175 spic=$shared
b24dbcbd 2176 ;;
e939cedd 2177 x86)
cfdb6148 2178 subarch="x86_32"
e939cedd 2179 check_cc <<EOF && subarch="x86_64"
58b3536d 2180 int test[(int)sizeof(char*) - 7];
cfdb6148 2181EOF
de27f4d9 2182 if test "$subarch" = "x86_64"; then
e939cedd 2183 spic=$shared
de27f4d9 2184 fi
b24dbcbd 2185 ;;
b24dbcbd
RP
2186esac
2187
343aef9b 2188enable $subarch
8a3c8627 2189enabled spic && enable pic
b24dbcbd 2190
7483e694 2191# OS specific
4f854758 2192case $target_os in
a1629e28 2193 haiku)
63ae7e7c 2194 prefix_default="/boot/common"
108caaaa 2195 network_extralibs="-lnetwork"
a1629e28 2196 ;;
7483e694
DB
2197 sunos)
2198 FFSERVERLDFLAGS=""
9987769a 2199 SHFLAGS='-shared -Wl,-h,$$(@F)'
0600d30a 2200 enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
7483e694 2201 network_extralibs="-lsocket -lnsl"
50a334e4 2202 add_cppflags -D__EXTENSIONS__
8182dc34 2203 nm_opts='-P -g'
7483e694
DB
2204 ;;
2205 netbsd)
07a8eef6
MR
2206 oss_indev_extralibs="-lossaudio"
2207 oss_outdev_extralibs="-lossaudio"
2138dc99 2208 add_cppflags -D_XOPEN_SOURCE=600
7483e694
DB
2209 ;;
2210 openbsd)
89e053f8 2211 enable malloc_aligned
7c4a001a
MR
2212 # On OpenBSD 4.5. the compiler does not use PIC unless
2213 # explicitly using -fPIC. FFmpeg builds fine without PIC,
2214 # however the generated executable will not do anything
2215 # (simply quits with exit-code 1, no crash, no output).
a7b9c8ae 2216 # Thus explicitly enable PIC here.
cd78208b 2217 enable pic
7483e694 2218 SHFLAGS='-shared'
07a8eef6
MR
2219 oss_indev_extralibs="-lossaudio"
2220 oss_outdev_extralibs="-lossaudio"
7483e694 2221 ;;
90b4f091 2222 freebsd|dragonfly)
89e053f8 2223 enable malloc_aligned
7483e694
DB
2224 ;;
2225 bsd/os)
355d81df 2226 add_extralibs -lpoll -lgnugetopt
7483e694
DB
2227 strip="strip -d"
2228 ;;
2229 darwin)
89e053f8 2230 enable malloc_aligned
301ab19d 2231 gas="gas-preprocessor.pl $cc"
e08b8239 2232 enabled ppc && add_asflags -force_cpusubtype_ALL
0138c54e 2233 SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
be90cd27 2234 strip="${strip} -x"
355d81df 2235 add_ldflags -Wl,-dynamic,-search_paths_first
7483e694
DB
2236 SLIBSUF=".dylib"
2237 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2238 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2239 FFSERVERLDFLAGS=-Wl,-bind_at_load
304d586d 2240 objformat="macho"
1b0f6fb8 2241 enabled x86_64 && objformat="macho64"
8dfa86f7 2242 enabled_any pic shared ||
2704bd1a 2243 { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
7483e694
DB
2244 ;;
2245 mingw32*)
9d3f4f50 2246 if test $target_os = "mingw32ce"; then
1aa71e25
MS
2247 disable network
2248 else
2249 target_os=mingw32
2250 fi
dcc01c06 2251 LIBTARGET=i386
1fc9fb8a 2252 if enabled x86_64; then
89e053f8 2253 enable malloc_aligned
dcc01c06 2254 LIBTARGET=x64
336cc1b0
MS
2255 elif enabled arm; then
2256 LIBTARGET=arm
dcc01c06 2257 fi
fbd971a4 2258 shlibdir_default="$bindir_default"
7483e694
DB
2259 disable ffserver
2260 SLIBPREF=""
2261 SLIBSUF=".dll"
7483e694
DB
2262 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2263 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
06abe7f5 2264 SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
4c25d159 2265 SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
b9349ff4
MS
2266 install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2267 install -d "$(LIBDIR)"; \
2268 install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
7483e694 2269 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
4b51fb1c 2270 SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
304d586d 2271 objformat="win32"
bc574408 2272 enable dos_paths
1894e741 2273 check_cflags -fno-common
0a4307d6 2274 if ! check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR)"; then
f7ad5aa2
RP
2275 check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2276 die "ERROR: MinGW runtime version must be >= 3.15."
b734a678 2277 enabled_any vfwcap_indev &&
f7ad5aa2 2278 { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
b734a678 2279 die "ERROR: vfwcap_indev requires w32api version 3.13 or later."; }
626c46ec 2280 fi
7483e694
DB
2281 ;;
2282 cygwin*)
4f854758 2283 target_os=cygwin
fbd971a4 2284 shlibdir_default="$bindir_default"
7483e694
DB
2285 SLIBPREF="cyg"
2286 SLIBSUF=".dll"
2287 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2288 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2289 SHFLAGS='-shared -Wl,--enable-auto-image-base'
304d586d 2290 objformat="win32"
bc574408 2291 enable dos_paths
1894e741 2292 check_cflags -fno-common
7483e694 2293 ;;
4f365f37 2294 *-dos|freedos|opendos)
fdf11906 2295 disable ffplay ffserver
4f365f37
MK
2296 disable $INDEV_LIST $OUTDEV_LIST
2297 network_extralibs="-lsocket"
ff1c015d 2298 objformat="coff"
bc574408 2299 enable dos_paths
4f365f37 2300 ;;
7483e694 2301 linux)
7483e694
DB
2302 enable dv1394
2303 ;;
2304 irix*)
4f854758 2305 target_os=irix
7483e694
DB
2306 ranlib="echo ignoring ranlib"
2307 ;;
d22e8442 2308 os/2*)
d22e8442
DY
2309 strip="lxlite"
2310 ln_s="cp -f"
355d81df 2311 add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
71c61f62 2312 SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
d22e8442 2313 FFSERVERLDFLAGS=""
287d3b13 2314 LIBSUF="_s.a"
d22e8442
DY
2315 SLIBPREF=""
2316 SLIBSUF=".dll"
2317 SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2318 SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
71c61f62
MR
2319 SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2320 echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2321 echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2322 echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2323 echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2324 emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2325 SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2326 emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2327 SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
d22e8442 2328 SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
bc574408 2329 enable dos_paths
d22e8442 2330 ;;
83993c1c
AM
2331 gnu/kfreebsd)
2332 ;;
34e82167 2333 gnu)
34e82167 2334 ;;
614d8911
MR
2335 none)
2336 ;;
7483e694 2337 *)
4f924f9a 2338 die "Unknown OS '$target_os'."
7483e694
DB
2339 ;;
2340esac
2341
13cb2187
AS
2342check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2343
c9d19248
MR
2344set_default $PATHS_LIST
2345
320d060a 2346# we need to build at least one lib type
93b3c083 2347if ! enabled_any static shared; then
320d060a
DB
2348 cat <<EOF
2349At least one library type must be built.
2350Specify --enable-static to build the static libraries or --enable-shared to
2351build the shared libraries as well. To only build the shared libraries specify
2352--disable-static in addition to --enable-shared.
2353EOF
2354 exit 1;
2355fi
2356
abc4e572 2357disabled static && LIBNAME=""
2a320695 2358
2184c6f7 2359die_license_disabled() {
4c27207c 2360 enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2184c6f7
DB
2361}
2362
2184c6f7
DB
2363die_license_disabled gpl libx264
2364die_license_disabled gpl libxvid
2365die_license_disabled gpl postproc
2366die_license_disabled gpl x11grab
2367
2f7ae63b 2368die_license_disabled nonfree libfaac
b2e3c528 2369
0b175caa
DB
2370die_license_disabled version3 libopencore_amrnb
2371die_license_disabled version3 libopencore_amrwb
2372
9cad0e4e 2373enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
3fe142e2 2374
9eeed841 2375check_deps $ARCH_EXT_LIST
0f3cb305 2376
40617a6d 2377disabled optimizations || check_cflags -fomit-frame-pointer
cf9d24ad 2378
e276d9e8
MR
2379enable_pic() {
2380 enable pic
bce7b696
MR
2381 add_cppflags -DPIC
2382 add_cflags -fPIC
2383 add_asflags -fPIC
e276d9e8
MR
2384}
2385
2386enabled pic && enable_pic
bce7b696 2387
b4d96ba2
MR
2388check_cc <<EOF || die "Symbol mangling check failed."
2389int ff_extern;
2390EOF
8182dc34 2391sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
b4d96ba2
MR
2392extern_prefix=${sym%%ff_extern*}
2393
f65883c8
MR
2394check_cc <<EOF && enable inline_asm
2395void foo(void) { __asm__ volatile ("" ::); }
2396EOF
61d251db 2397
df5e3978
MR
2398_restrict=
2399for restrict_keyword in restrict __restrict__ __restrict; do
2400 check_cc <<EOF && _restrict=$restrict_keyword && break
2401void foo(char * $restrict_keyword p);
2402EOF
2403done
2404
2405check_cc <<EOF && enable attribute_packed
2406struct { int x; } __attribute__((packed)) x;
2407EOF
2408
dffb41b9
MR
2409check_cc <<EOF && enable attribute_may_alias
2410union { int x; } __attribute__((may_alias)) x;
2411EOF
2412
df5e3978
MR
2413check_cc <<EOF || die "endian test failed"
2414unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2415EOF
48fc536a 2416od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
df5e3978 2417
e939cedd
MR
2418if enabled alpha; then
2419
2420 check_cflags -mieee
2421
2422elif enabled arm; then
e45391bb 2423
50fa82e6 2424 check_cflags -marm
301ab19d 2425 nogas=die
50fa82e6 2426
fa0912fe
MR
2427 check_ld <<EOF && enable vfp_args
2428__asm__ (".eabi_attribute 28, 1");
2429int main(void) { return 0; }
2430EOF
2431
2432 # We have to check if pld is a nop and disable it.
2433 check_asm pld '"pld [r0]"'
2434
2435 enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2436 enabled armv6 && check_asm armv6 '"sadd16 r0, r0, r0"'
2437 enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2438 enabled armvfp && check_asm armvfp '"fadds s0, s0, s0"'
2439 enabled iwmmxt && check_asm iwmmxt '"wunpckelub wr6, wr4"'
2440 enabled neon && check_asm neon '"vadd.i16 q0, q0, q0"'
e45391bb 2441
e276d9e8
MR
2442 enabled_all armv6t2 shared !pic && enable_pic
2443
fa0912fe 2444elif enabled mips; then
e45391bb 2445
fa0912fe
MR
2446 check_asm loongson '"dmult.g $1, $2, $3"'
2447 enabled mmi && check_asm mmi '"lq $2, 0($2)"'
e45391bb 2448
fa0912fe 2449elif enabled ppc; then
e45391bb 2450
e6a0c354
MR
2451 enable local_aligned_8 local_aligned_16
2452
135448fa 2453 check_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
2f0c136e 2454 check_asm ibm_asm '"add 0, 0, 0"'
fa0912fe 2455 check_asm ppc4xx '"maclhw r10, r11, r12"'
64de20d1 2456 check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
fa0912fe
MR
2457
2458 # AltiVec flags: The FSF version of GCC differs from the Apple version
2459 if enabled altivec; then
301ab19d 2460 nogas=warn
fa0912fe
MR
2461 check_cflags -maltivec -mabi=altivec &&
2462 { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2463 check_cflags -faltivec
2464
2465 # check if our compiler supports Motorola AltiVec C API
2466 check_cc <<EOF || disable altivec
2467$inc_altivec_h
2468int main(void) {
2469 vector signed int v1, v2, v3;
2470 v1 = vec_add(v2,v3);
2471 return 0;
2472}
2473EOF
2474
2475 # check if our compiler supports braces for vector declarations
2476 check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2477$inc_altivec_h
2478int main (void) { (vector int) {1}; return 0; }
2479EOF
2480 fi
e45391bb 2481
fa0912fe 2482elif enabled sparc; then
e45391bb 2483
fa0912fe
MR
2484 enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2485 add_cflags -mcpu=ultrasparc -mtune=ultrasparc
e45391bb 2486
fa0912fe 2487elif enabled x86; then
e45391bb 2488
e6a0c354
MR
2489 enable local_aligned_8 local_aligned_16
2490
44965991
PI
2491 # check whether EBP is available on x86
2492 # As 'i' is stored on the stack, this program will crash
2493 # if the base pointer is used to access it because the
2494 # base pointer is cleared in the inline assembly code.
7dfef245 2495 check_exec_crash <<EOF && enable ebp_available
44965991 2496 volatile int i=0;
be449fca 2497 __asm__ volatile (
44965991
PI
2498 "xorl %%ebp, %%ebp"
2499 ::: "%ebp");
2500 return i;
44965991
PI
2501EOF
2502
f494213c 2503 # check whether EBX is available on x86
7cee5421
MR
2504 check_asm ebx_available '""::"b"(0)' &&
2505 check_asm ebx_available '"":::"%ebx"'
8e380710 2506
d3a4b4e0
DB
2507 # check whether more than 10 operands are supported
2508 check_cc <<EOF && enable ten_operands
2509int main(void) {
2510 int x=0;
2511 __asm__ volatile(
2512 ""
2513 :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2514 );
2515 return 0;
2516}
2517EOF
2518
d7f0920b 2519 # check whether binutils is new enough to compile SSSE3/MMX2
940f335a 2520 enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
5fd89ca0 2521 enabled mmx2 && check_asm mmx2 '"pmaxub %mm0, %mm1"'
6bd859d6
MR
2522
2523 check_asm bswap '"bswap %%eax" ::: "%eax"'
304d586d 2524
d52481b9 2525 YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
304d586d 2526 enabled x86_64 && append YASMFLAGS "-m amd64"
a34ebe60 2527 enabled pic && append YASMFLAGS "-DPIC"
5f36d94d 2528 test -n "$extern_prefix" && append YASMFLAGS "-DPREFIX"
304d586d
LM
2529 case "$objformat" in
2530 elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
304d586d 2531 esac
31a0dcb2
MR
2532 if ! disabled yasm; then
2533 check_yasm "pabsw xmm0, xmm0" && enable yasm ||
2534 warn "yasm not found, performance will suffer"
2535 fi
e45391bb 2536
669b5583
MR
2537 case "$cpu" in
2538 athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2539 disable fast_clz
2540 ;;
2541 esac
2542
44965991
PI
2543fi
2544
301ab19d
MR
2545if enabled asm; then
2546 as=${gas:=$as}
2547 check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2548 $nogas "GNU assembler not found, install gas-preprocessor"
2549fi
2550
a98bb16d
RP
2551if check_func dlopen; then
2552 ldl=
2553elif check_func dlopen -ldl; then
2554 ldl=-ldl
8bf5d58f
MN
2555fi
2556
75ecf149
DB
2557# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2558check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2559
534a2231 2560check_func fcntl
7483e694 2561check_func fork
84882df6 2562check_func getaddrinfo $network_extralibs
7483e694
DB
2563check_func gethrtime
2564check_func getrusage
fc5607f8 2565check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
094c09bb 2566check_func inet_aton $network_extralibs
abfc8d05 2567check_func isatty
4ae40685 2568check_func ${malloc_prefix}memalign && enable memalign
7483e694 2569check_func mkstemp
4ae40685 2570check_func ${malloc_prefix}posix_memalign && enable posix_memalign
0104b608 2571check_func setrlimit
87958234 2572check_func strerror_r
b507ebd1 2573check_func_headers io.h setmode
e4673692 2574check_func_headers lzo/lzo1x.h lzo1x_999_compress
fc5607f8 2575check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2446d3d6 2576check_func_headers windows.h GetProcessTimes
7c5bfe7a 2577check_func_headers windows.h VirtualAlloc
6ffa87d3 2578
e16e49ac 2579check_header conio.h
a98bb16d 2580check_header dlfcn.h
92c6a099 2581check_header dxva2api.h
a98bb16d 2582check_header malloc.h
bf6ce82d 2583check_header poll.h
b58412f1 2584check_header sys/mman.h
b091aa44 2585check_header sys/resource.h
bf6ce82d 2586check_header sys/select.h
a98bb16d 2587check_header termios.h
272081b0
CEH
2588check_header vdpau/vdpau.h
2589check_header vdpau/vdpau_x11.h
68178ca9 2590check_header X11/extensions/XvMClib.h
a98bb16d 2591
9104cd51
RP
2592check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2593
89e053f8
MR
2594if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2595 enabled_any $need_memalign ; then
1f91cdce 2596 die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
a98bb16d 2597fi
e16e49ac 2598
a4fa192c 2599disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
632948bd 2600disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
57bd82d4
MR
2601
2602# check for some common methods of building with pthread support
2603# do this before the optional library checks as some of them require pthreads
0dbfc1db
MR
2604if ! disabled pthreads && ! enabled w32threads; then
2605 enable pthreads
9e7fd101
MR
2606 if check_func pthread_create; then
2607 :
2608 elif check_func pthread_create -pthread; then
2609 add_cflags -pthread
afc9aee2 2610 add_extralibs -pthread
9e7fd101
MR
2611 elif check_func pthread_create -pthreads; then
2612 add_cflags -pthreads
afc9aee2 2613 add_extralibs -pthreads
8d94f606
GT
2614 elif check_func pthread_create -lpthreadGC2; then
2615 add_extralibs -lpthreadGC2
9e7fd101 2616 elif ! check_lib pthread.h pthread_create -lpthread; then
0dbfc1db 2617 disable pthreads
9e7fd101 2618 fi
57bd82d4
MR
2619fi
2620
8eee7025 2621for thread in $THREADS_LIST; do
e5f94c2b 2622 if enabled $thread; then
3ae3b721
RP
2623 test -n "$thread_type" &&
2624 die "ERROR: Only one thread type must be selected." ||
e5f94c2b 2625 thread_type="$thread"
e5f94c2b
RP
2626 fi
2627done
2628
fdf88598 2629check_lib math.h sin -lm
edd43c95 2630disabled vaapi || check_lib va/va.h vaInitialize -lva
fdf88598 2631
645d2652
MR
2632check_mathfunc exp2
2633check_mathfunc exp2f
2634check_mathfunc llrint
07876e25 2635check_mathfunc llrintf
645d2652
MR
2636check_mathfunc log2
2637check_mathfunc log2f
2638check_mathfunc lrint
2639check_mathfunc lrintf
2640check_mathfunc round
2641check_mathfunc roundf
2642check_mathfunc truncf
f32adb22 2643
57bd82d4 2644# these are off by default, so fail if requested and not available
a1b3c5a3 2645enabled avisynth && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
e3cc7d6f 2646enabled libdirac && add_cflags $(pkg-config --cflags dirac) &&
2513b2b4
DB
2647 require libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2648 require libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
79fda097 2649enabled libfaac && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
5af41508 2650enabled libgsm && require libgsm gsm/gsm.h gsm_create -lgsm
eb7626a3 2651enabled libmp3lame && require libmp3lame lame/lame.h lame_init -lmp3lame
7483e694 2652enabled libnut && require libnut libnut.h nut_demuxer_init -lnut
eb7626a3
MR
2653enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2654enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
3d6fac8c 2655enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
42ebfc54
RP
2656enabled librtmp && { check_lib librtmp/rtmp.h RTMP_Socket $(pkg-config --libs librtmp) ||
2657 die "ERROR: librtmp not found or RTMP_Socket() missing, librtmp version must be >= 2.2.f"; }
36718e51
DB
2658enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2659 require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
ae14f311 2660enabled libspeex && require libspeex speex/speex.h speex_decoder_init -lspeex
c261a5d9 2661enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
7483e694 2662enabled libvorbis && require libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
ea28e81f
MR
2663enabled libvpx && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx &&
2664 check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2665 die "ERROR: libvpx version must be >=0.9.1"; }
eb7626a3 2666enabled libx264 && require libx264 x264.h x264_encoder_encode -lx264 &&
652d9d24
JGG
2667 { check_cpp_condition x264.h "X264_BUILD >= 98" ||
2668 die "ERROR: libx264 version must be >= 0.98."; }
2bfecf73 2669enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
7483e694 2670enabled mlib && require mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
8ac17293 2671
0b4a1821
AS
2672# libdc1394 check
2673if enabled libdc1394; then
2674 { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2675 enable libdc1394_2; } ||
2676 { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2677 enable libdc1394_1; } ||
2678 die "ERROR: No version of libdc1394 found "
2679fi
2680
6a1a892f 2681SDL_CONFIG="${cross_prefix}sdl-config"
2270b4b2 2682if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
5e622c40 2683 sdl_cflags=$("${SDL_CONFIG}" --cflags)
b4f93564 2684 sdl_libs=$("${SDL_CONFIG}" --libs)
aa692d54
MR
2685 check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2686 check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2687 enable sdl &&
2688 check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
c3f6b472 2689fi
57bd82d4 2690
2270b4b2 2691texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
146ea952 2692
73b46a95 2693if enabled network; then
96000432 2694 check_type "sys/types.h sys/socket.h" socklen_t
c0018613 2695 check_type netdb.h "struct addrinfo"
b4d68544
MS
2696 check_type netinet/in.h "struct ipv6_mreq"
2697 check_type netinet/in.h "struct sockaddr_in6"
ff6e82a9 2698 check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
3b2372bf 2699 check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
73b46a95
RP
2700 # Prefer arpa/inet.h over winsock2
2701 if check_header arpa/inet.h ; then
2702 check_func closesocket
2703 elif check_header winsock2.h ; then
f4c13872
MS
2704 check_func_headers winsock2.h closesocket -lws2 && \
2705 network_extralibs="-lws2" || \
2706 { check_func_headers winsock2.h closesocket -lws2_32 && \
2707 network_extralibs="-lws2_32"; }
72be9e73 2708 check_type ws2tcpip.h socklen_t
c0018613 2709 check_type ws2tcpip.h "struct addrinfo"
b4d68544
MS
2710 check_type ws2tcpip.h "struct ipv6_mreq"
2711 check_type ws2tcpip.h "struct sockaddr_in6"
33a4dbdd 2712 check_type ws2tcpip.h "struct sockaddr_storage"
3b2372bf 2713 check_struct winsock2.h "struct sockaddr" sa_len
28c9f069
MK
2714 else
2715 disable network
73b46a95
RP
2716 fi
2717fi
2718
06e31011
RP
2719check_header linux/videodev.h
2720check_header linux/videodev2.h
1b6e8b73 2721check_header sys/videoio.h
47f38850 2722
27796dc3 2723check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
c2345207 2724
f8aa696f 2725# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
1c915f83
RP
2726{ check_header dev/bktr/ioctl_meteor.h &&
2727 check_header dev/bktr/ioctl_bt848.h; } ||
2728{ check_header machine/ioctl_meteor.h &&
2729 check_header machine/ioctl_bt848.h; } ||
2730{ check_header dev/video/meteor/ioctl_meteor.h &&
2731 check_header dev/video/bktr/ioctl_bt848.h; } ||
2732check_header dev/ic/bt8xx.h
f8aa696f 2733
c7682de0
RP
2734check_header sys/soundcard.h
2735check_header soundcard.h
deb29777 2736
b6f3d925 2737enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
35fd8122 2738
0e57fe17 2739enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
80ff8a16 2740
56a059ac 2741enabled x11grab &&
f58f4ce1
GP
2742check_header X11/Xlib.h &&
2743check_header X11/extensions/XShm.h &&
0a045661 2744check_header X11/extensions/Xfixes.h &&
f58f4ce1 2745check_func XOpenDisplay -lX11 &&
781c1aa6
R
2746check_func XShmCreateImage -lX11 -lXext &&
2747check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
f58f4ce1 2748
598ef02b 2749if ! disabled vdpau && enabled vdpau_vdpau_h; then
deda2a4a
AC
2750check_cpp_condition \
2751 vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
d1ebd4a9
AC
2752 { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2753 disable vdpau; }
abf649c7 2754fi
deda2a4a 2755
95e561ec 2756enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
57bd82d4
MR
2757
2758# add some useful compiler flags if supported
2759check_cflags -Wdeclaration-after-statement
dcd479c0
MR
2760check_cflags -Wall
2761check_cflags -Wno-switch
c07bd6a9
MN
2762check_cflags -Wdisabled-optimization
2763check_cflags -Wpointer-arith
2764check_cflags -Wredundant-decls
cc1fb623 2765check_cflags -Wno-pointer-sign
f4929996 2766check_cflags -Wcast-qual
9aceb3cf 2767check_cflags -Wwrite-strings
652a5bf6 2768check_cflags -Wtype-limits
764551c6 2769check_cflags -Wundef
fc298fd9 2770check_cflags -Wmissing-prototypes
5af4e0cc 2771enabled extra_warnings && check_cflags -Winline
cf9d24ad 2772
57bd82d4 2773# add some linker flags
5c0e9479 2774check_ldflags -Wl,--warn-common
8351d2ba
DB
2775check_ldflags -Wl,--as-needed
2776check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
c2fd6530 2777check_ldflags -Wl,-Bsymbolic
94a3401e 2778
a482e61b 2779echo "X{};" > $TMPV
b462d132 2780if test_ldflags -Wl,--version-script,$TMPV; then
a482e61b 2781 append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
b462d132
MR
2782 check_cc <<EOF && enable symver_asm_label
2783void ff_foo(void) __asm__ ("av_foo@VERSION");
0884fadf 2784void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
b462d132
MR
2785EOF
2786 check_cc <<EOF && enable symver_gnu_asm
2787__asm__(".symver ff_foo,av_foo@VERSION");
2788void ff_foo(void) {}
2789EOF
2790fi
a482e61b 2791
bd2216e4 2792if enabled small; then
14ca9cd0 2793 add_cflags $size_cflags
8400d6b8
DB
2794 optimizations="small"
2795elif enabled optimizations; then
14ca9cd0 2796 add_cflags $speed_cflags
b05394a0
MR
2797else
2798 add_cflags $noopt_cflags
cddf3f45 2799fi
11fdbc44 2800check_cflags -fno-math-errno
b2eb2ff0 2801check_cflags -fno-signed-zeros
cddf3f45 2802
629687f6 2803if enabled icc; then
b1598b58
MR
2804 # Just warnings, no remarks
2805 check_cflags -w1
2806 # -wd: Disable following warnings
2807 # 144, 167, 556: -Wno-pointer-sign
2808 # 10006: ignoring unknown option -fno-signed-zeros
2809 # 10156: ignoring option '-W'; no argument required
dd4a03f7 2810 check_cflags -wd144,167,556,10006,10156
b1598b58
MR
2811 # 11030: Warning unknown option --as-needed
2812 # 10156: ignoring option '-export'; no argument required
2813 check_ldflags -wd10156,11030
2814 # Allow to compile with optimizations
2815 check_ldflags -march=$cpu
be2cf98a
CEH
2816 # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2817 enable ebp_available
df442a8d
MR
2818elif enabled ccc; then
2819 # disable some annoying warnings
2820 add_cflags -msg_disable cvtu32to64
2821 add_cflags -msg_disable embedcomment
2822 add_cflags -msg_disable needconstext
2823 add_cflags -msg_disable nomainieee
2824 add_cflags -msg_disable ptrmismatch1
2825 add_cflags -msg_disable unreachcode
973859f5
MR
2826elif enabled gcc; then
2827 check_cflags -fno-tree-vectorize
765e6134 2828 check_cflags -Werror=implicit-function-declaration
de63bfec 2829 check_cflags -Werror=missing-prototypes
06da6943
DC
2830elif enabled clang; then
2831 check_cflags -Qunused-arguments
138132be
MR
2832elif enabled armcc; then
2833 # 2523: use of inline assembler is deprecated
2834 add_cflags -Wrvct,--diag_suppress=2523
976d7bf7 2835 add_cflags -Wrvct,--diag_suppress=1207
587d24ff
MR
2836elif enabled tms470; then
2837 add_cflags -pds=824 -pds=837
504a64b9
CEH
2838fi
2839
7483e694
DB
2840enabled_any $THREADS_LIST && enable threads
2841
2842check_deps $CONFIG_LIST \
b6bb00b0 2843 $CONFIG_EXTRA \
7483e694
DB
2844 $HAVE_LIST \
2845 $DECODER_LIST \
2846 $ENCODER_LIST \
5666fd73 2847 $HWACCEL_LIST \
7483e694
DB
2848 $PARSER_LIST \
2849 $BSF_LIST \
2850 $DEMUXER_LIST \
2851 $MUXER_LIST \
f7679c54 2852 $FILTER_LIST \
7483e694
DB
2853 $INDEV_LIST \
2854 $OUTDEV_LIST \
2855 $PROTOCOL_LIST \
57442411
MR
2856 $ACODEC_TESTS \
2857 $VCODEC_TESTS \
2858 $LAVF_TESTS \
f70f03f6 2859
3bfd582c 2860enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
c8a4ae00 2861
3e89171a 2862echo "install prefix $prefix"
f36958f8
DB
2863echo "source path $source_path"
2864echo "C compiler $cc"
f36958f8 2865echo "ARCH $arch ($cpu)"
ce8871c2
MR
2866if test "$build_suffix" != ""; then
2867 echo "build suffix $build_suffix"
eb94aca9 2868fi
ac63af34
DB
2869if test "$extra_version" != ""; then
2870 echo "version string suffix $extra_version"
2871fi
0db2ce77 2872echo "big-endian ${bigendian-no}"
e90f5b5a 2873echo "runtime cpu detection ${runtime_cpudetect-no}"
5b6c2cbd 2874if enabled x86; then
af44e8e4 2875 echo "yasm ${yasm-no}"
0db2ce77 2876 echo "MMX enabled ${mmx-no}"
30e98e62 2877 echo "MMX2 enabled ${mmx2-no}"
3bf96eec 2878 echo "3DNow! enabled ${amd3dnow-no}"
a1ef9f08 2879 echo "3DNow! extended enabled ${amd3dnowext-no}"
1bb04d5a 2880 echo "SSE enabled ${sse-no}"
30e98e62 2881 echo "SSSE3 enabled ${ssse3-no}"
0db2ce77
MR
2882 echo "CMOV enabled ${cmov-no}"
2883 echo "CMOV is fast ${fast_cmov-no}"
971cc990
MN
2884 echo "EBX available ${ebx_available-no}"
2885 echo "EBP available ${ebp_available-no}"
d3a4b4e0 2886 echo "10 operands supported ${ten_operands-no}"
e41e8342 2887fi
5b6c2cbd 2888if enabled arm; then
0db2ce77
MR
2889 echo "ARMv5TE enabled ${armv5te-no}"
2890 echo "ARMv6 enabled ${armv6-no}"
ab5cb084 2891 echo "ARMv6T2 enabled ${armv6t2-no}"
f55b299a 2892 echo "ARM VFP enabled ${armvfp-no}"
0db2ce77 2893 echo "IWMMXT enabled ${iwmmxt-no}"
6b18d278 2894 echo "NEON enabled ${neon-no}"
eba9ae3c 2895fi
5b6c2cbd 2896if enabled mips; then
0db2ce77 2897 echo "MMI enabled ${mmi-no}"
e41e8342 2898fi
5b6c2cbd 2899if enabled ppc; then
0db2ce77 2900 echo "AltiVec enabled ${altivec-no}"
30e98e62 2901 echo "PPC 4xx optimizations ${ppc4xx-no}"
0db2ce77 2902 echo "dcbzl available ${dcbzl-no}"
30e98e62
DB
2903fi
2904if enabled sparc; then
2905 echo "VIS enabled ${vis-no}"
e41e8342 2906fi
0db2ce77 2907echo "debug symbols ${debug-no}"
87a0fb62 2908echo "strip symbols ${stripping-no}"
8400d6b8 2909echo "optimizations ${optimizations-no}"
0db2ce77
MR
2910echo "static ${static-no}"
2911echo "shared ${shared-no}"
4a24ab64 2912echo "postprocessing support ${postproc-no}"
f7679c54 2913echo "new filter support ${avfilter-no}"
81124ba0 2914echo "filters using lavformat ${avfilter_lavf-no}"
0db2ce77 2915echo "network support ${network-no}"
0db2ce77
MR
2916echo "threading support ${thread_type-no}"
2917echo "SDL support ${sdl-no}"
0db2ce77
MR
2918echo "Sun medialib support ${mlib-no}"
2919echo "AVISynth enabled ${avisynth-no}"
f7b8bffe 2920echo "libdc1394 support ${libdc1394-no}"
690bfceb 2921echo "libdirac enabled ${libdirac-no}"
0db2ce77 2922echo "libfaac enabled ${libfaac-no}"
0db2ce77
MR
2923echo "libgsm enabled ${libgsm-no}"
2924echo "libmp3lame enabled ${libmp3lame-no}"
2925echo "libnut enabled ${libnut-no}"
0b175caa
DB
2926echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2927echo "libopencore-amrwb support ${libopencore_amrwb-no}"
9a77d59a 2928echo "libopenjpeg enabled ${libopenjpeg-no}"
0f943ce6 2929echo "librtmp enabled ${librtmp-no}"
f7cd9eed 2930echo "libschroedinger enabled ${libschroedinger-no}"
ae14f311 2931echo "libspeex enabled ${libspeex-no}"
0db2ce77
MR
2932echo "libtheora enabled ${libtheora-no}"
2933echo "libvorbis enabled ${libvorbis-no}"
8299a7f8 2934echo "libvpx enabled ${libvpx-no}"
d6bd62db
DB
2935echo "libx264 enabled ${libx264-no}"
2936echo "libxvid enabled ${libxvid-no}"
0db2ce77 2937echo "zlib enabled ${zlib-no}"
f402916e 2938echo "bzlib enabled ${bzlib-no}"
2c62e737 2939echo
de6d9b64 2940
5666fd73 2941for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
8138b9db 2942 echo "Enabled ${type}s:"
f65c9da1 2943 eval list=\$$(toupper $type)_LIST
31c0121d 2944 print_enabled '_*' $list | sort | pr -3 -t
f65c9da1 2945 echo
8138b9db
RP
2946done
2947
ba7a7039 2948license="LGPL version 2.1 or later"
ba321adb 2949if enabled nonfree; then
ba7a7039 2950 license="nonfree and unredistributable"
9cad0e4e
DB
2951elif enabled gplv3; then
2952 license="GPL version 3 or later"
2953elif enabled lgplv3; then
2954 license="LGPL version 3 or later"
ba321adb 2955elif enabled gpl; then
ba7a7039 2956 license="GPL version 2 or later"
ba321adb
JK
2957fi
2958
2959echo "License: $license"
ca5323af 2960
cf1392e9
DB
2961echo "Creating config.mak and config.h..."
2962
df642790
MR
2963# build tree in object directory if source path is different from current one
2964if enabled source_path_used; then
2965 DIRS="
2966 doc
2967 libavcodec
2968 libavcodec/$arch
2969 libavdevice
2970 libavfilter
2971 libavformat
2972 libavutil
2973 libavutil/$arch
2974 libpostproc
2975 libswscale
2976 libswscale/$arch
2977 tests
2978 tools
2979 "
2980 FILES="
2981 Makefile
2982 common.mak
2983 subdir.mak
2984 doc/texi2pod.pl
2985 libavcodec/Makefile
43f60eba 2986 libavcodec/${arch}/Makefile
df642790
MR
2987 libavdevice/Makefile
2988 libavfilter/Makefile
2989 libavformat/Makefile
2990 libavutil/Makefile
2991 libpostproc/Makefile
2992 libswscale/Makefile
2993 "
e0e335a0 2994 map 'mkdir -p $v' $DIRS;
43f60eba 2995 map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
df642790
MR
2996fi
2997
ad212cc6
MR
2998enabled stripping || strip="echo skipping strip"
2999
173c983b
MR
3000cat > config.mak <<EOF
3001# Automatically generated by configure - do not modify!
3002ifndef FFMPEG_CONFIG_MAK
3003FFMPEG_CONFIG_MAK=1
3004FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3005prefix=$prefix
3006LIBDIR=\$(DESTDIR)$libdir
3007SHLIBDIR=\$(DESTDIR)$shlibdir
3008INCDIR=\$(DESTDIR)$incdir
3009BINDIR=\$(DESTDIR)$bindir
3010DATADIR=\$(DESTDIR)$datadir
3011MANDIR=\$(DESTDIR)$mandir
3012SRC_PATH="$source_path"
3013SRC_PATH_BARE=$source_path
3014BUILD_ROOT="$PWD"
3015ARCH=$arch
3016CC=$cc
3017AS=$as
3018LD=$ld
3019DEPCC=$dep_cc
3020YASM=$yasmexe
a4aea515 3021YASMDEP=$yasmexe
173c983b
MR
3022AR=$ar
3023RANLIB=$ranlib
4335125c 3024CP=cp -p
173c983b
MR
3025LN_S=$ln_s
3026STRIP=$strip
3027CPPFLAGS=$CPPFLAGS
3028CFLAGS=$CFLAGS
3029ASFLAGS=$ASFLAGS
3030CC_O=$CC_O
3031LDFLAGS=$LDFLAGS
3032FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3033SHFLAGS=$SHFLAGS
3034YASMFLAGS=$YASMFLAGS
3035BUILDSUF=$build_suffix
3036FULLNAME=$FULLNAME
3037LIBPREF=$LIBPREF
3038LIBSUF=$LIBSUF
3039LIBNAME=$LIBNAME
3040SLIBPREF=$SLIBPREF
3041SLIBSUF=$SLIBSUF
3042EXESUF=$EXESUF
3043EXTRA_VERSION=$extra_version
3044DEPFLAGS=$DEPFLAGS
3045CCDEP=$CCDEP
3046ASDEP=$ASDEP
3047CC_DEPFLAGS=$CC_DEPFLAGS
3048AS_DEPFLAGS=$AS_DEPFLAGS
3049HOSTCC=$host_cc
3050HOSTCFLAGS=$host_cflags
3051HOSTEXESUF=$HOSTEXESUF
3052HOSTLDFLAGS=$host_ldflags
3053HOSTLIBS=$host_libs
3054TARGET_EXEC=$target_exec
3055TARGET_PATH=$target_path
3056SDL_LIBS=$sdl_libs
3057SDL_CFLAGS=$sdl_cflags
3058LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3059EXTRALIBS=$extralibs
fd676deb 3060INSTALL=install
1afc4750
MR
3061LIBTARGET=${LIBTARGET}
3062SLIBNAME=${SLIBNAME}
3063SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3064SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3065SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3066SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3067SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3068SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2fad0977 3069SAMPLES=$samples
173c983b 3070EOF
5a872801 3071
719c8e00
MR
3072get_version(){
3073 name=$1
3074 file=$source_path/$2
147e7692
MR
3075 eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3076 eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
0e32c8c6
MR
3077 lcname=$(tolower $name)
3078 eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3079 eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
719c8e00
MR
3080}
3081
147e7692
MR
3082get_version LIBSWSCALE libswscale/swscale.h
3083get_version LIBPOSTPROC libpostproc/postprocess.h
3084get_version LIBAVCODEC libavcodec/avcodec.h
3085get_version LIBAVDEVICE libavdevice/avdevice.h
3086get_version LIBAVFORMAT libavformat/avformat.h
3087get_version LIBAVUTIL libavutil/avutil.h
a6601d69 3088get_version LIBAVFILTER libavfilter/avfilter.h
5a872801 3089
173c983b
MR
3090cat > $TMPH <<EOF
3091/* Automatically generated by configure - do not modify! */
3092#ifndef FFMPEG_CONFIG_H
3093#define FFMPEG_CONFIG_H
3094#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
c1736936 3095#define FFMPEG_LICENSE "$(c_escape $license)"
173c983b
MR
3096#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3097#define CC_TYPE "$cc_type"
3098#define CC_VERSION $cc_version
3099#define restrict $_restrict
42719e20 3100#define ASMALIGN(ZEROBITS) ".p2align " #ZEROBITS "\\n\\t"
173c983b
MR
3101#define EXTERN_PREFIX "${extern_prefix}"
3102#define EXTERN_ASM ${extern_prefix}
3103EOF
523ef551 3104
4ae40685
MR
3105test -n "$malloc_prefix" &&
3106 echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3107
523ef551 3108if enabled small || disabled optimizations; then
9a894c48 3109 echo "#undef av_always_inline" >> $TMPH
523ef551
DB
3110 echo "#define av_always_inline" >> $TMPH
3111fi
3112
3d907e22
MR
3113print_config ARCH_ $TMPH config.mak $ARCH_LIST
3114print_config HAVE_ $TMPH config.mak $HAVE_LIST
7483e694 3115print_config CONFIG_ $TMPH config.mak $CONFIG_LIST \
b6bb00b0 3116 $CONFIG_EXTRA \
7483e694
DB
3117 $DECODER_LIST \
3118 $ENCODER_LIST \
5666fd73 3119 $HWACCEL_LIST \
7483e694
DB
3120 $PARSER_LIST \
3121 $BSF_LIST \
3122 $DEMUXER_LIST \
3123 $MUXER_LIST \
f7679c54 3124 $FILTER_LIST \
7483e694
DB
3125 $PROTOCOL_LIST \
3126 $INDEV_LIST \
3127 $OUTDEV_LIST \
8ac17293 3128
57442411
MR
3129cat >>config.mak <<EOF
3130ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3131VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3132LAVF_TESTS=$(print_enabled -n _test $LAVF_TESTS)
3133EOF
3134
9c05103f 3135echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
8c6d2da5 3136echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
9c05103f 3137
b7860763 3138# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
c34681df 3139cp_if_changed $TMPH config.h
3d204385 3140
a3e02a8c
MR
3141cat > $TMPH <<EOF
3142/* Generated by ffconf */
3143#ifndef AVUTIL_AVCONFIG_H
3144#define AVUTIL_AVCONFIG_H
3145EOF
3146
3147print_config AV_HAVE_ $TMPH /dev/null $HAVE_LIST_PUB
3148
3149echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3150
3151cp_if_changed $TMPH libavutil/avconfig.h
3152
7bfc8ae6
MR
3153test -n "$WARNINGS" && printf "\n$WARNINGS"
3154
d0674868 3155# build pkg-config files
def4272a 3156
d0674868
DB
3157pkgconfig_generate(){
3158name=$1
b0dfd108 3159shortname=${name#lib}${build_suffix}
d0674868
DB
3160comment=$2
3161version=$3
3162libs=$4
3163requires=$5
25cd5cb3 3164cat <<EOF > $name/$name.pc
3e89171a 3165prefix=$prefix
a94e666c 3166exec_prefix=\${prefix}
f2b7382c 3167libdir=$libdir
7622778e 3168includedir=$incdir
def4272a 3169
d0674868
DB
3170Name: $name
3171Description: $comment
3172Version: $version
8cd6b388 3173Requires: $(enabled shared || echo $requires)
5dcfe9f8 3174Requires.private: $(enabled shared && echo $requires)
def4272a 3175Conflicts:
8cd6b388 3176Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
12701f6e 3177Libs.private: $(enabled shared && echo $libs)
76a448ed 3178Cflags: -I\${includedir}
def4272a 3179EOF
25cd5cb3 3180cat <<EOF > $name/$name-uninstalled.pc
def4272a
AJ
3181prefix=
3182exec_prefix=
46d1ff83 3183libdir=\${pcfiledir}
1d44d365 3184includedir=${source_path}
def4272a 3185
d0674868
DB
3186Name: $name
3187Description: $comment
3188Version: $version
3189Requires: $requires
def4272a 3190Conflicts:
12701f6e 3191Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
def4272a
AJ
3192Cflags: -I\${includedir}
3193EOF
d0674868 3194}
def4272a 3195
e426941d 3196pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
46983309
RT
3197pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3198pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3199pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3ed1a2ee 3200enabled avfilter &&
46983309 3201 pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3ed1a2ee 3202enabled postproc &&
e426941d 3203 pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
5add54b4 3204pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"