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#!/bin/sh
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#
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# Libav configure script
4
#
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# Copyright (c) 2000-2002 Fabrice Bellard
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# Copyright (c) 2005-2008 Diego Biurrun
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# Copyright (c) 2005-2008 Mans Rullgard
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#
9

    
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# Prevent locale nonsense from breaking basic text processing.
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LC_ALL=C
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export LC_ALL
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# make sure we are running under a compatible shell
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# try to make this part work with most shells
16

    
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try_exec(){
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    echo "Trying shell $1"
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    type "$1" > /dev/null 2>&1 && exec "$@"
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}
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unset foo
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(: ${foo%%bar}) 2> /dev/null
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E1="$?"
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(: ${foo?}) 2> /dev/null
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E2="$?"
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if test "$E1" != 0 || test "$E2" = 0; then
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    echo "Broken shell detected.  Trying alternatives."
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    export FF_CONF_EXEC
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    if test "0$FF_CONF_EXEC" -lt 1; then
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        FF_CONF_EXEC=1
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        try_exec bash "$0" "$@"
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    fi
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    if test "0$FF_CONF_EXEC" -lt 2; then
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        FF_CONF_EXEC=2
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        try_exec ksh "$0" "$@"
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    fi
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    if test "0$FF_CONF_EXEC" -lt 3; then
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        FF_CONF_EXEC=3
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        try_exec /usr/xpg4/bin/sh "$0" "$@"
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    fi
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    echo "No compatible shell script interpreter found."
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    echo "This configure script requires a POSIX-compatible shell"
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    echo "such as bash or ksh."
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    echo "THIS IS NOT A BUG IN LIBAV, DO NOT REPORT IT AS SUCH."
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    echo "Instead, install a working POSIX-compatible shell."
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    echo "Disabling this configure test will create a broken Libav."
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    if test "$BASH_VERSION" = '2.04.0(1)-release'; then
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        echo "This bash version ($BASH_VERSION) is broken on your platform."
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        echo "Upgrade to a later version if available."
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    fi
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    exit 1
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fi
56

    
57
show_help(){
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cat <<EOF
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Usage: configure [options]
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Options: [defaults in brackets after descriptions]
61

    
62
Standard options:
63
  --help                   print this message
64
  --logfile=FILE           log tests and output to FILE [config.log]
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  --disable-logging        do not log configure debug information
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  --prefix=PREFIX          install in PREFIX [$prefix]
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  --bindir=DIR             install binaries in DIR [PREFIX/bin]
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  --datadir=DIR            install data files in DIR [PREFIX/share/ffmpeg]
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  --libdir=DIR             install libs in DIR [PREFIX/lib]
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  --shlibdir=DIR           install shared libs in DIR [PREFIX/lib]
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  --incdir=DIR             install includes in DIR [PREFIX/include]
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  --mandir=DIR             install man page in DIR [PREFIX/share/man]
73

    
74
Configuration options:
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  --disable-static         do not build static libraries [no]
76
  --enable-shared          build shared libraries [no]
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  --enable-gpl             allow use of GPL code, the resulting libs
78
                           and binaries will be under GPL [no]
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  --enable-version3        upgrade (L)GPL to version 3 [no]
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  --enable-nonfree         allow use of nonfree code, the resulting libs
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                           and binaries will be unredistributable [no]
82
  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
85
  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
87
  --disable-avdevice       disable libavdevice build
88
  --disable-avcodec        disable libavcodec build
89
  --disable-avformat       disable libavformat build
90
  --disable-swscale        disable libswscale build
91
  --enable-postproc        enable GPLed postprocessing support [no]
92
  --disable-avfilter       disable video filter support [no]
93
  --disable-pthreads       disable pthreads [auto]
94
  --enable-w32threads      use Win32 threads [no]
95
  --enable-x11grab         enable X11 grabbing [no]
96
  --disable-network        disable network support [no]
97
  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
98
  --enable-gray            enable full grayscale support (slower color)
99
  --disable-swscale-alpha  disable alpha channel support in swscale
100
  --disable-fastdiv        disable table-based division
101
  --enable-small           optimize for size instead of speed
102
  --disable-aandct         disable AAN DCT code
103
  --disable-dct            disable DCT code
104
  --disable-fft            disable FFT code
105
  --disable-golomb         disable Golomb code
106
  --disable-huffman        disable Huffman 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
112
  --disable-dxva2          disable DXVA2 code
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
116
  --disable-everything     disable all components listed below
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

    
161
External library support:
162
  --enable-avisynth        enable reading of AVISynth script files [no]
163
  --enable-bzlib           enable bzlib [autodetect]
164
  --enable-frei0r          enable frei0r video filtering
165
  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166
  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167
  --enable-libopencv       enable video filtering via libopencv [no]
168
  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
169
                           and libraw1394 [no]
170
  --enable-libdirac        enable Dirac support via libdirac [no]
171
  --enable-libfaac         enable FAAC support via libfaac [no]
172
  --enable-libgsm          enable GSM support via libgsm [no]
173
  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
174
  --enable-libnut          enable NUT (de)muxing via libnut,
175
                           native (de)muxer exists [no]
176
  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
177
  --enable-librtmp         enable RTMP[E] support via librtmp [no]
178
  --enable-libschroedinger enable Dirac support via libschroedinger [no]
179
  --enable-libspeex        enable Speex decoding via libspeex [no]
180
  --enable-libtheora       enable Theora encoding via libtheora [no]
181
  --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
182
  --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
183
  --enable-libvorbis       enable Vorbis encoding via libvorbis,
184
                           native implementation exists [no]
185
  --enable-libvpx          enable VP8 support via libvpx [no]
186
  --enable-libx264         enable H.264 encoding via x264 [no]
187
  --enable-libxavs         enable AVS encoding via xavs [no]
188
  --enable-libxvid         enable Xvid encoding via xvidcore,
189
                           native MPEG-4/Xvid encoder exists [no]
190
  --enable-mlib            enable Sun medialib [no]
191
  --enable-zlib            enable zlib [autodetect]
192

    
193
Advanced options (experts only):
194
  --source-path=PATH       path to source code [$source_path]
195
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
196
  --enable-cross-compile   assume a cross-compiler is used
197
  --sysroot=PATH           root of cross-build tree
198
  --sysinclude=PATH        location of cross-build system headers
199
  --target-os=OS           compiler targets OS [$target_os]
200
  --target-exec=CMD        command to run executables on target
201
  --target-path=DIR        path to view of build directory on target
202
  --nm=NM                  use nm tool
203
  --ar=AR                  use archive tool AR [$ar_default]
204
  --as=AS                  use assembler AS [$as_default]
205
  --cc=CC                  use C compiler CC [$cc_default]
206
  --ld=LD                  use linker LD
207
  --host-cc=HOSTCC         use host C compiler HOSTCC
208
  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
209
  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
210
  --host-libs=HLIBS        use libs HLIBS when linking for host
211
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
212
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
213
  --extra-libs=ELIBS       add ELIBS [$ELIBS]
214
  --extra-version=STRING   version string suffix []
215
  --build-suffix=SUFFIX    library name suffix []
216
  --arch=ARCH              select architecture [$arch]
217
  --cpu=CPU                select the minimum required CPU (affects
218
                           instruction selection, may crash on older CPUs)
219
  --disable-asm            disable all assembler optimizations
220
  --disable-altivec        disable AltiVec optimizations
221
  --disable-amd3dnow       disable 3DNow! optimizations
222
  --disable-amd3dnowext    disable 3DNow! extended optimizations
223
  --disable-mmx            disable MMX optimizations
224
  --disable-mmx2           disable MMX2 optimizations
225
  --disable-sse            disable SSE optimizations
226
  --disable-ssse3          disable SSSE3 optimizations
227
  --disable-avx            disable AVX optimizations
228
  --disable-armv5te        disable armv5te optimizations
229
  --disable-armv6          disable armv6 optimizations
230
  --disable-armv6t2        disable armv6t2 optimizations
231
  --disable-armvfp         disable ARM VFP optimizations
232
  --disable-iwmmxt         disable iwmmxt optimizations
233
  --disable-mmi            disable MMI optimizations
234
  --disable-neon           disable neon optimizations
235
  --disable-vis            disable VIS optimizations
236
  --disable-yasm           disable use of yasm assembler
237
  --enable-pic             build position-independent code
238
  --malloc-prefix=PFX      prefix malloc and related names with PFX
239
  --enable-sram            allow use of on-chip SRAM
240
  --disable-symver         disable symbol versioning
241

    
242
Developer options (useful when working on Libav itself):
243
  --disable-debug          disable debugging symbols
244
  --enable-debug=LEVEL     set the debug level [$debuglevel]
245
  --disable-optimizations  disable compiler optimizations
246
  --enable-extra-warnings  enable more compiler warnings
247
  --samples=PATH           location of test samples for FATE, if not set use
248
                           \$FATE_SAMPLES at make invocation time.
249

    
250
NOTE: Object files are built at the place where configure is launched.
251
EOF
252
  exit 0
253
}
254

    
255
quotes='""'
256

    
257
log(){
258
    echo "$@" >> $logfile
259
}
260

    
261
log_file(){
262
    log BEGIN $1
263
    pr -n -t $1 >> $logfile
264
    log END $1
265
}
266

    
267
echolog(){
268
    log "$@"
269
    echo "$@"
270
}
271

    
272
warn(){
273
    log "WARNING: $*"
274
    WARNINGS="${WARNINGS}WARNING: $*\n"
275
}
276

    
277
die(){
278
    echolog "$@"
279
    cat <<EOF
280

    
281
If you think configure made a mistake, make sure you are using the latest
282
version from Git.  If the latest version fails, report the problem to the
283
libav-user@libav.org mailing list or IRC #libav on irc.freenode.net.
284
EOF
285
    if disabled logging; then
286
        cat <<EOF
287
Rerun configure with logging enabled (do not use --disable-logging), and
288
include the log this produces with your report.
289
EOF
290
    else
291
cat <<EOF
292
Include the log file "$logfile" produced by configure as this will help
293
solving the problem.
294
EOF
295
    fi
296
    exit 1
297
}
298

    
299
# Avoid locale weirdness, besides we really just want to translate ASCII.
300
toupper(){
301
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302
}
303

    
304
tolower(){
305
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306
}
307

    
308
c_escape(){
309
    echo "$*" | sed 's/["\\]/\\\0/g'
310
}
311

    
312
sh_quote(){
313
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
314
    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315
    echo "$v"
316
}
317

    
318
cleanws(){
319
    echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320
}
321

    
322
filter(){
323
    pat=$1
324
    shift
325
    for v; do
326
        eval "case $v in $pat) echo $v ;; esac"
327
    done
328
}
329

    
330
filter_out(){
331
    pat=$1
332
    shift
333
    for v; do
334
        eval "case $v in $pat) ;; *) echo $v ;; esac"
335
    done
336
}
337

    
338
map(){
339
    m=$1
340
    shift
341
    for v; do eval $m; done
342
}
343

    
344
set_all(){
345
    value=$1
346
    shift
347
    for var in $*; do
348
        eval $var=$value
349
    done
350
}
351

    
352
set_weak(){
353
    value=$1
354
    shift
355
    for var; do
356
        eval : \${$var:=$value}
357
    done
358
}
359

    
360
set_safe(){
361
    var=$1
362
    shift
363
    eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
364
}
365

    
366
get_safe(){
367
    eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
368
}
369

    
370
pushvar(){
371
    for var in $*; do
372
        eval level=\${${var}_level:=0}
373
        eval ${var}_${level}="\$$var"
374
        eval ${var}_level=$(($level+1))
375
    done
376
}
377

    
378
popvar(){
379
    for var in $*; do
380
        eval level=\${${var}_level:-0}
381
        test $level = 0 && continue
382
        eval level=$(($level-1))
383
        eval $var="\${${var}_${level}}"
384
        eval ${var}_level=$level
385
        eval unset ${var}_${level}
386
    done
387
}
388

    
389
enable(){
390
    set_all yes $*
391
}
392

    
393
disable(){
394
    set_all no $*
395
}
396

    
397
enable_weak(){
398
    set_weak yes $*
399
}
400

    
401
disable_weak(){
402
    set_weak no $*
403
}
404

    
405
enable_safe(){
406
    for var; do
407
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
408
    done
409
}
410

    
411
disable_safe(){
412
    for var; do
413
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414
    done
415
}
416

    
417
do_enable_deep(){
418
    for var; do
419
        enabled $var && continue
420
        eval sel="\$${var}_select"
421
        eval sgs="\$${var}_suggest"
422
        pushvar var sgs
423
        enable_deep $sel
424
        popvar sgs
425
        enable_deep_weak $sgs
426
        popvar var
427
    done
428
}
429

    
430
enable_deep(){
431
    do_enable_deep $*
432
    enable $*
433
}
434

    
435
enable_deep_weak(){
436
    do_enable_deep $*
437
    enable_weak $*
438
}
439

    
440
enabled(){
441
    test "${1#!}" = "$1" && op== || op=!=
442
    eval test "x\$${1#!}" $op "xyes"
443
}
444

    
445
disabled(){
446
    test "${1#!}" = "$1" && op== || op=!=
447
    eval test "x\$${1#!}" $op "xno"
448
}
449

    
450
enabled_all(){
451
    for opt; do
452
        enabled $opt || return 1
453
    done
454
}
455

    
456
disabled_all(){
457
    for opt; do
458
        disabled $opt || return 1
459
    done
460
}
461

    
462
enabled_any(){
463
    for opt; do
464
        enabled $opt && return 0
465
    done
466
}
467

    
468
disabled_any(){
469
    for opt; do
470
        disabled $opt && return 0
471
    done
472
    return 1
473
}
474

    
475
set_default(){
476
    for opt; do
477
        eval : \${$opt:=\$${opt}_default}
478
    done
479
}
480

    
481
is_in(){
482
    value=$1
483
    shift
484
    for var in $*; do
485
        [ $var = $value ] && return 0
486
    done
487
    return 1
488
}
489

    
490
check_deps(){
491
    for cfg; do
492
        cfg="${cfg#!}"
493
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
494
        disabled ${cfg}_checking && continue
495
        enable ${cfg}_checking
496

    
497
        eval dep_all="\$${cfg}_deps"
498
        eval dep_any="\$${cfg}_deps_any"
499
        eval dep_sel="\$${cfg}_select"
500
        eval dep_sgs="\$${cfg}_suggest"
501
        eval dep_ifa="\$${cfg}_if"
502
        eval dep_ifn="\$${cfg}_if_any"
503

    
504
        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
505
        check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
506
        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507

    
508
        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
509
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
510
        enabled_all  $dep_all || disable $cfg
511
        enabled_any  $dep_any || disable $cfg
512
        disabled_any $dep_sel && disable $cfg
513

    
514
        if enabled $cfg; then
515
            eval dep_extralibs="\$${cfg}_extralibs"
516
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
517
            enable_deep $dep_sel
518
            enable_deep_weak $dep_sgs
519
        fi
520

    
521
        disable ${cfg}_checking
522
    done
523
}
524

    
525
print_config_h(){
526
    enabled $1 && v=1 || v=0
527
    echo "#define $2 $v"
528
}
529

    
530
print_config_mak(){
531
    enabled $1 && v= || v=!
532
    echo "$v$2=yes"
533
}
534

    
535
print_config_asm(){
536
    enabled $1 && echo "%define $2"
537
}
538

    
539
print_config(){
540
    pfx=$1
541
    files=$2
542
    shift 2
543
    for cfg; do
544
        ucname="$(toupper $cfg)"
545
        for f in $files; do
546
            "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
547
        done
548
    done
549
}
550

    
551
print_enabled(){
552
    test "$1" = -n && end=" " && shift || end="\n"
553
    suf=$1
554
    shift
555
    for v; do
556
        enabled $v && printf "%s$end" ${v%$suf};
557
    done
558
}
559

    
560
append(){
561
    var=$1
562
    shift
563
    eval "$var=\"\$$var $*\""
564
}
565

    
566
prepend(){
567
    var=$1
568
    shift
569
    eval "$var=\"$* \$$var\""
570
}
571

    
572
add_cppflags(){
573
    append CPPFLAGS $($filter_cppflags "$@")
574
}
575

    
576
add_cflags(){
577
    append CFLAGS $($filter_cflags "$@")
578
}
579

    
580
add_asflags(){
581
    append ASFLAGS $($filter_asflags "$@")
582
}
583

    
584
add_ldflags(){
585
    append LDFLAGS "$@"
586
}
587

    
588
add_extralibs(){
589
    prepend extralibs "$@"
590
}
591

    
592
check_cmd(){
593
    log "$@"
594
    "$@" >> $logfile 2>&1
595
}
596

    
597
check_cc(){
598
    log check_cc "$@"
599
    cat > $TMPC
600
    log_file $TMPC
601
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
602
}
603

    
604
check_cpp(){
605
    log check_cpp "$@"
606
    cat > $TMPC
607
    log_file $TMPC
608
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
609
}
610

    
611
check_as(){
612
    log check_as "$@"
613
    cat > $TMPC
614
    log_file $TMPC
615
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
616
}
617

    
618
check_asm(){
619
    log check_asm "$@"
620
    name="$1"
621
    code="$2"
622
    shift 2
623
    disable $name
624
    check_as "$@" <<EOF && enable $name
625
void foo(void){ __asm__ volatile($code); }
626
EOF
627
}
628

    
629
check_yasm(){
630
    log check_yasm "$@"
631
    echo "$1" > $TMPS
632
    log_file $TMPS
633
    shift 1
634
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
635
}
636

    
637
check_ld(){
638
    log check_ld "$@"
639
    flags=''
640
    libs=''
641
    for f; do
642
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
643
    done
644
    check_cc $($filter_cflags $flags) || return
645
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
646
}
647

    
648
check_cppflags(){
649
    log check_cppflags "$@"
650
    set -- $($filter_cppflags "$@")
651
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
652
int x;
653
EOF
654
}
655

    
656
check_cflags(){
657
    log check_cflags "$@"
658
    set -- $($filter_cflags "$@")
659
    check_cc "$@" <<EOF && append CFLAGS "$@"
660
int x;
661
EOF
662
}
663

    
664
test_ldflags(){
665
    log test_ldflags "$@"
666
    check_ld "$@" <<EOF
667
int main(void){ return 0; }
668
EOF
669
}
670

    
671
check_ldflags(){
672
    log check_ldflags "$@"
673
    test_ldflags "$@" && add_ldflags "$@"
674
}
675

    
676
check_header(){
677
    log check_header "$@"
678
    header=$1
679
    shift
680
    disable_safe $header
681
    check_cpp "$@" <<EOF && enable_safe $header
682
#include <$header>
683
int x;
684
EOF
685
}
686

    
687
check_func(){
688
    log check_func "$@"
689
    func=$1
690
    shift
691
    disable $func
692
    check_ld "$@" <<EOF && enable $func
693
extern int $func();
694
int main(void){ $func(); }
695
EOF
696
}
697

    
698
check_mathfunc(){
699
    log check_mathfunc "$@"
700
    func=$1
701
    shift
702
    disable $func
703
    check_ld "$@" <<EOF && enable $func
704
#include <math.h>
705
float foo(float f) { return $func(f); }
706
int main(void){ return 0; }
707
EOF
708
}
709

    
710
check_func_headers(){
711
    log check_func_headers "$@"
712
    headers=$1
713
    funcs=$2
714
    shift 2
715
    {
716
        for hdr in $headers; do
717
            echo "#include <$hdr>"
718
        done
719
        for func in $funcs; do
720
            echo "long check_$func(void) { return (long) $func; }"
721
        done
722
        echo "int main(void) { return 0; }"
723
    } | check_ld "$@" && enable $funcs && enable_safe $headers
724
}
725

    
726
check_cpp_condition(){
727
    log check_cpp_condition "$@"
728
    header=$1
729
    condition=$2
730
    shift 2
731
    check_cpp $($filter_cppflags "$@") <<EOF
732
#include <$header>
733
#if !($condition)
734
#error "unsatisfied condition: $condition"
735
#endif
736
EOF
737
}
738

    
739
check_lib(){
740
    log check_lib "$@"
741
    header="$1"
742
    func="$2"
743
    shift 2
744
    check_header $header && check_func $func "$@" && add_extralibs "$@"
745
}
746

    
747
check_lib2(){
748
    log check_lib2 "$@"
749
    headers="$1"
750
    funcs="$2"
751
    shift 2
752
    check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
753
}
754

    
755
check_pkg_config(){
756
    log check_pkg_config "$@"
757
    pkg="$1"
758
    headers="$2"
759
    funcs="$3"
760
    shift 3
761
    $pkg_config --exists $pkg || return
762
    pkg_cflags=$($pkg_config --cflags $pkg)
763
    pkg_libs=$($pkg_config --libs $pkg)
764
    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
765
        set_safe ${pkg}_cflags $pkg_cflags   &&
766
        set_safe ${pkg}_libs   $pkg_libs
767
}
768

    
769
check_exec(){
770
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
771
}
772

    
773
check_exec_crash(){
774
    code=$(cat)
775

    
776
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
777
    # are safe but may not be available everywhere.  Thus we use
778
    # raise(SIGTERM) instead.  The check is run in a subshell so we
779
    # can redirect the "Terminated" message from the shell.  SIGBUS
780
    # is not defined by standard C so it is used conditionally.
781

    
782
    (check_exec "$@") >> $logfile 2>&1 <<EOF
783
#include <signal.h>
784
static void sighandler(int sig){
785
    raise(SIGTERM);
786
}
787
int main(void){
788
    signal(SIGILL, sighandler);
789
    signal(SIGFPE, sighandler);
790
    signal(SIGSEGV, sighandler);
791
#ifdef SIGBUS
792
    signal(SIGBUS, sighandler);
793
#endif
794
    { $code }
795
}
796
EOF
797
}
798

    
799
check_type(){
800
    log check_type "$@"
801
    headers=$1
802
    type=$2
803
    shift 2
804
    disable_safe "$type"
805
    incs=""
806
    for hdr in $headers; do
807
        incs="$incs
808
#include <$hdr>"
809
    done
810
    check_cc "$@" <<EOF && enable_safe "$type"
811
$incs
812
$type v;
813
EOF
814
}
815

    
816
check_struct(){
817
    log check_type "$@"
818
    headers=$1
819
    struct=$2
820
    member=$3
821
    shift 3
822
    disable_safe "${struct}_${member}"
823
    incs=""
824
    for hdr in $headers; do
825
        incs="$incs
826
#include <$hdr>"
827
    done
828
    check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
829
$incs
830
const void *p = &(($struct *)0)->$member;
831
EOF
832
}
833

    
834
require(){
835
    name="$1"
836
    header="$2"
837
    func="$3"
838
    shift 3
839
    check_lib $header $func "$@" || die "ERROR: $name not found"
840
}
841

    
842
require2(){
843
    name="$1"
844
    headers="$2"
845
    func="$3"
846
    shift 3
847
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
848
}
849

    
850
require_pkg_config(){
851
    pkg="$1"
852
    check_pkg_config "$@" || die "ERROR: $pkg not found"
853
    add_cflags    $(get_safe ${pkg}_cflags)
854
    add_extralibs $(get_safe ${pkg}_libs)
855
}
856

    
857
check_host_cc(){
858
    log check_host_cc "$@"
859
    cat > $TMPC
860
    log_file $TMPC
861
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
862
}
863

    
864
check_host_cflags(){
865
    log check_host_cflags "$@"
866
    check_host_cc "$@" <<EOF && append host_cflags "$@"
867
int x;
868
EOF
869
}
870

    
871
apply(){
872
    file=$1
873
    shift
874
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
875
}
876

    
877
cp_if_changed(){
878
    cmp -s "$1" "$2" &&
879
        echo "$2 is unchanged" ||
880
        cp -f "$1" "$2"
881
}
882

    
883
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
884
# system-dependent things.
885

    
886
COMPONENT_LIST="
887
    bsfs
888
    decoders
889
    demuxers
890
    encoders
891
    filters
892
    hwaccels
893
    indevs
894
    muxers
895
    outdevs
896
    parsers
897
    protocols
898
"
899

    
900
CONFIG_LIST="
901
    $COMPONENT_LIST
902
    aandct
903
    ac3dsp
904
    avcodec
905
    avdevice
906
    avfilter
907
    avformat
908
    avisynth
909
    bzlib
910
    dct
911
    doc
912
    dwt
913
    dxva2
914
    fastdiv
915
    ffmpeg
916
    ffplay
917
    ffprobe
918
    ffserver
919
    fft
920
    frei0r
921
    golomb
922
    gpl
923
    gray
924
    h264dsp
925
    h264pred
926
    hardcoded_tables
927
    huffman
928
    libdc1394
929
    libdirac
930
    libfaac
931
    libgsm
932
    libmp3lame
933
    libnut
934
    libopencore_amrnb
935
    libopencore_amrwb
936
    libopencv
937
    libopenjpeg
938
    librtmp
939
    libschroedinger
940
    libspeex
941
    libtheora
942
    libvo_aacenc
943
    libvo_amrwbenc
944
    libvorbis
945
    libvpx
946
    libx264
947
    libxavs
948
    libxvid
949
    lpc
950
    lsp
951
    mdct
952
    memalign_hack
953
    mlib
954
    mpegaudio_hp
955
    network
956
    nonfree
957
    pic
958
    postproc
959
    rdft
960
    rtpdec
961
    runtime_cpudetect
962
    shared
963
    sinewin
964
    small
965
    sram
966
    static
967
    swscale
968
    swscale_alpha
969
    vaapi
970
    vdpau
971
    version3
972
    x11grab
973
    zlib
974
"
975

    
976
THREADS_LIST='
977
    pthreads
978
    w32threads
979
'
980

    
981
ARCH_LIST='
982
    alpha
983
    arm
984
    avr32
985
    avr32_ap
986
    avr32_uc
987
    bfin
988
    ia64
989
    m68k
990
    mips
991
    mips64
992
    parisc
993
    ppc
994
    ppc64
995
    s390
996
    sh4
997
    sparc
998
    sparc64
999
    tomi
1000
    x86
1001
    x86_32
1002
    x86_64
1003
'
1004

    
1005
ARCH_EXT_LIST='
1006
    altivec
1007
    amd3dnow
1008
    amd3dnowext
1009
    armv5te
1010
    armv6
1011
    armv6t2
1012
    armvfp
1013
    avx
1014
    iwmmxt
1015
    mmi
1016
    mmx
1017
    mmx2
1018
    neon
1019
    ppc4xx
1020
    sse
1021
    ssse3
1022
    vis
1023
'
1024

    
1025
HAVE_LIST_PUB='
1026
    bigendian
1027
    fast_unaligned
1028
'
1029

    
1030
HAVE_LIST="
1031
    $ARCH_EXT_LIST
1032
    $HAVE_LIST_PUB
1033
    $THREADS_LIST
1034
    aligned_stack
1035
    alsa_asoundlib_h
1036
    altivec_h
1037
    arpa_inet_h
1038
    attribute_may_alias
1039
    attribute_packed
1040
    bswap
1041
    closesocket
1042
    cmov
1043
    dcbzl
1044
    dev_bktr_ioctl_bt848_h
1045
    dev_bktr_ioctl_meteor_h
1046
    dev_ic_bt8xx_h
1047
    dev_video_meteor_ioctl_meteor_h
1048
    dev_video_bktr_ioctl_bt848_h
1049
    dlfcn_h
1050
    dlopen
1051
    dos_paths
1052
    ebp_available
1053
    ebx_available
1054
    exp2
1055
    exp2f
1056
    fast_64bit
1057
    fast_clz
1058
    fast_cmov
1059
    fcntl
1060
    fork
1061
    getaddrinfo
1062
    gethrtime
1063
    GetProcessMemoryInfo
1064
    GetProcessTimes
1065
    getrusage
1066
    gnu_as
1067
    struct_rusage_ru_maxrss
1068
    ibm_asm
1069
    inet_aton
1070
    inline_asm
1071
    isatty
1072
    kbhit
1073
    ldbrx
1074
    libdc1394_1
1075
    libdc1394_2
1076
    llrint
1077
    llrintf
1078
    local_aligned_16
1079
    local_aligned_8
1080
    log2
1081
    log2f
1082
    loongson
1083
    lrint
1084
    lrintf
1085
    lzo1x_999_compress
1086
    machine_ioctl_bt848_h
1087
    machine_ioctl_meteor_h
1088
    malloc_h
1089
    MapViewOfFile
1090
    memalign
1091
    mkstemp
1092
    mmap
1093
    pld
1094
    posix_memalign
1095
    round
1096
    roundf
1097
    sdl
1098
    sdl_video_size
1099
    setmode
1100
    sndio_h
1101
    socklen_t
1102
    soundcard_h
1103
    poll_h
1104
    setrlimit
1105
    strerror_r
1106
    strtok_r
1107
    struct_addrinfo
1108
    struct_ipv6_mreq
1109
    struct_sockaddr_in6
1110
    struct_sockaddr_sa_len
1111
    struct_sockaddr_storage
1112
    symver
1113
    symver_gnu_asm
1114
    symver_asm_label
1115
    sys_mman_h
1116
    sys_resource_h
1117
    sys_select_h
1118
    sys_soundcard_h
1119
    sys_videoio_h
1120
    ten_operands
1121
    threads
1122
    trunc
1123
    truncf
1124
    vfp_args
1125
    VirtualAlloc
1126
    winsock2_h
1127
    xform_asm
1128
    xmm_clobbers
1129
    yasm
1130
"
1131

    
1132
# options emitted with CONFIG_ prefix but not available on command line
1133
CONFIG_EXTRA="
1134
    avutil
1135
    gplv3
1136
    lgplv3
1137
"
1138

    
1139
CMDLINE_SELECT="
1140
    $ARCH_EXT_LIST
1141
    $CONFIG_LIST
1142
    $THREADS_LIST
1143
    asm
1144
    cross_compile
1145
    debug
1146
    extra_warnings
1147
    logging
1148
    optimizations
1149
    symver
1150
    yasm
1151
"
1152

    
1153
PATHS_LIST='
1154
    bindir
1155
    datadir
1156
    incdir
1157
    libdir
1158
    mandir
1159
    prefix
1160
    shlibdir
1161
'
1162

    
1163
CMDLINE_SET="
1164
    $PATHS_LIST
1165
    ar
1166
    arch
1167
    as
1168
    build_suffix
1169
    cc
1170
    cpu
1171
    cross_prefix
1172
    dep_cc
1173
    extra_version
1174
    host_cc
1175
    host_cflags
1176
    host_ldflags
1177
    host_libs
1178
    host_os
1179
    ld
1180
    logfile
1181
    malloc_prefix
1182
    nm
1183
    pkg_config
1184
    samples
1185
    source_path
1186
    sysinclude
1187
    sysroot
1188
    target_exec
1189
    target_os
1190
    target_path
1191
"
1192

    
1193
CMDLINE_APPEND="
1194
    extra_cflags
1195
"
1196

    
1197
# code dependency declarations
1198

    
1199
# architecture extensions
1200

    
1201
armv5te_deps="arm"
1202
armv6_deps="arm"
1203
armv6t2_deps="arm"
1204
armvfp_deps="arm"
1205
iwmmxt_deps="arm"
1206
neon_deps="arm"
1207

    
1208
mmi_deps="mips"
1209

    
1210
altivec_deps="ppc"
1211
ppc4xx_deps="ppc"
1212

    
1213
vis_deps="sparc"
1214

    
1215
x86_64_suggest="cmov fast_cmov"
1216
amd3dnow_deps="mmx"
1217
amd3dnowext_deps="amd3dnow"
1218
mmx_deps="x86"
1219
mmx2_deps="mmx"
1220
sse_deps="mmx"
1221
ssse3_deps="sse"
1222
avx_deps="ssse3"
1223

    
1224
aligned_stack_if_any="ppc x86"
1225
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1226
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1227
fast_unaligned_if_any="armv6 ppc x86"
1228

    
1229
need_memalign="altivec neon sse"
1230
inline_asm_deps="!tms470"
1231

    
1232
symver_if_any="symver_asm_label symver_gnu_asm"
1233

    
1234
# subsystems
1235
dct_select="rdft"
1236
mdct_select="fft"
1237
rdft_select="fft"
1238

    
1239
# decoders / encoders / hardware accelerators
1240
aac_decoder_select="mdct sinewin"
1241
aac_encoder_select="mdct sinewin"
1242
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1243
ac3_decoder_select="mdct ac3dsp ac3_parser"
1244
ac3_encoder_select="mdct ac3dsp"
1245
ac3_fixed_encoder_select="mdct ac3dsp"
1246
alac_encoder_select="lpc"
1247
amrnb_decoder_select="lsp"
1248
amrwb_decoder_select="lsp"
1249
atrac1_decoder_select="mdct sinewin"
1250
atrac3_decoder_select="mdct"
1251
binkaudio_dct_decoder_select="mdct rdft dct sinewin"
1252
binkaudio_rdft_decoder_select="mdct rdft sinewin"
1253
cavs_decoder_select="golomb"
1254
cook_decoder_select="mdct sinewin"
1255
cscd_decoder_suggest="zlib"
1256
dca_decoder_select="mdct"
1257
dnxhd_encoder_select="aandct"
1258
dxa_decoder_select="zlib"
1259
eac3_decoder_select="ac3_decoder"
1260
eamad_decoder_select="aandct"
1261
eatgq_decoder_select="aandct"
1262
eatqi_decoder_select="aandct"
1263
ffv1_decoder_select="golomb"
1264
flac_decoder_select="golomb"
1265
flac_encoder_select="golomb lpc"
1266
flashsv_decoder_select="zlib"
1267
flashsv_encoder_select="zlib"
1268
flv_decoder_select="h263_decoder"
1269
flv_encoder_select="h263_encoder"
1270
fraps_decoder_select="huffman"
1271
h261_encoder_select="aandct"
1272
h263_decoder_select="h263_parser"
1273
h263_encoder_select="aandct"
1274
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1275
h263i_decoder_select="h263_decoder"
1276
h263p_encoder_select="h263_encoder"
1277
h264_decoder_select="golomb h264dsp h264pred"
1278
h264_dxva2_hwaccel_deps="dxva2api_h"
1279
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1280
h264_vaapi_hwaccel_select="vaapi"
1281
h264_vdpau_decoder_select="vdpau h264_decoder"
1282
imc_decoder_select="fft mdct sinewin"
1283
jpegls_decoder_select="golomb"
1284
jpegls_encoder_select="golomb"
1285
ljpeg_encoder_select="aandct"
1286
loco_decoder_select="golomb"
1287
mjpeg_encoder_select="aandct"
1288
mlp_decoder_select="mlp_parser"
1289
mp1float_decoder_select="dct"
1290
mp2float_decoder_select="dct"
1291
mp3adufloat_decoder_select="dct"
1292
mp3float_decoder_select="dct"
1293
mp3on4float_decoder_select="dct"
1294
mpeg1video_encoder_select="aandct"
1295
mpeg2video_encoder_select="aandct"
1296
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1297
mpeg4_encoder_select="h263_encoder"
1298
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1299
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1300
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1301
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1302
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1303
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1304
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1305
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1306
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1307
msmpeg4v1_decoder_select="h263_decoder"
1308
msmpeg4v1_encoder_select="h263_encoder"
1309
msmpeg4v2_decoder_select="h263_decoder"
1310
msmpeg4v2_encoder_select="h263_encoder"
1311
msmpeg4v3_decoder_select="h263_decoder"
1312
msmpeg4v3_encoder_select="h263_encoder"
1313
nellymoser_decoder_select="mdct sinewin"
1314
nellymoser_encoder_select="mdct sinewin"
1315
png_decoder_select="zlib"
1316
png_encoder_select="zlib"
1317
qcelp_decoder_select="lsp"
1318
qdm2_decoder_select="mdct rdft"
1319
ra_144_encoder_select="lpc"
1320
rv10_decoder_select="h263_decoder"
1321
rv10_encoder_select="h263_encoder"
1322
rv20_decoder_select="h263_decoder"
1323
rv20_encoder_select="h263_encoder"
1324
rv30_decoder_select="golomb h264pred"
1325
rv40_decoder_select="golomb h264pred"
1326
shorten_decoder_select="golomb"
1327
sipr_decoder_select="lsp"
1328
snow_decoder_select="dwt"
1329
snow_encoder_select="aandct dwt"
1330
svq1_encoder_select="aandct"
1331
svq3_decoder_select="golomb h264dsp h264pred"
1332
svq3_decoder_suggest="zlib"
1333
theora_decoder_select="vp3_decoder"
1334
tiff_decoder_suggest="zlib"
1335
tiff_encoder_suggest="zlib"
1336
truehd_decoder_select="mlp_decoder"
1337
tscc_decoder_select="zlib"
1338
twinvq_decoder_select="mdct lsp sinewin"
1339
vc1_decoder_select="h263_decoder"
1340
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1341
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1342
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1343
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1344
vorbis_decoder_select="mdct"
1345
vorbis_encoder_select="mdct"
1346
vp6_decoder_select="huffman"
1347
vp6a_decoder_select="vp6_decoder"
1348
vp6f_decoder_select="vp6_decoder"
1349
vp8_decoder_select="h264pred"
1350
wmapro_decoder_select="mdct sinewin"
1351
wmav1_decoder_select="mdct sinewin"
1352
wmav1_encoder_select="mdct sinewin"
1353
wmav2_decoder_select="mdct sinewin"
1354
wmav2_encoder_select="mdct sinewin"
1355
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1356
wmv1_decoder_select="h263_decoder"
1357
wmv1_encoder_select="h263_encoder"
1358
wmv2_decoder_select="h263_decoder"
1359
wmv2_encoder_select="h263_encoder"
1360
wmv3_decoder_select="vc1_decoder"
1361
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1362
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1363
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1364
zlib_decoder_select="zlib"
1365
zlib_encoder_select="zlib"
1366
zmbv_decoder_select="zlib"
1367
zmbv_encoder_select="zlib"
1368

    
1369
vaapi_deps="va_va_h"
1370
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1371

    
1372
# parsers
1373
h264_parser_select="golomb h264dsp h264pred"
1374

    
1375
# external libraries
1376
libdirac_decoder_deps="libdirac !libschroedinger"
1377
libdirac_encoder_deps="libdirac"
1378
libfaac_encoder_deps="libfaac"
1379
libgsm_decoder_deps="libgsm"
1380
libgsm_encoder_deps="libgsm"
1381
libgsm_ms_decoder_deps="libgsm"
1382
libgsm_ms_encoder_deps="libgsm"
1383
libmp3lame_encoder_deps="libmp3lame"
1384
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1385
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1386
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1387
libopenjpeg_decoder_deps="libopenjpeg"
1388
libschroedinger_decoder_deps="libschroedinger"
1389
libschroedinger_encoder_deps="libschroedinger"
1390
libspeex_decoder_deps="libspeex"
1391
libtheora_encoder_deps="libtheora"
1392
libvo_aacenc_encoder_deps="libvo_aacenc"
1393
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1394
libvorbis_encoder_deps="libvorbis"
1395
libvpx_decoder_deps="libvpx"
1396
libvpx_encoder_deps="libvpx"
1397
libx264_encoder_deps="libx264"
1398
libxavs_encoder_deps="libxavs"
1399
libxvid_encoder_deps="libxvid"
1400

    
1401
# demuxers / muxers
1402
ac3_demuxer_select="ac3_parser"
1403
asf_stream_muxer_select="asf_muxer"
1404
avisynth_demuxer_deps="avisynth"
1405
dirac_demuxer_select="dirac_parser"
1406
eac3_demuxer_select="ac3_parser"
1407
flac_demuxer_select="flac_parser"
1408
ipod_muxer_select="mov_muxer"
1409
libnut_demuxer_deps="libnut"
1410
libnut_muxer_deps="libnut"
1411
matroska_audio_muxer_select="matroska_muxer"
1412
matroska_demuxer_suggest="zlib bzlib"
1413
mov_demuxer_suggest="zlib"
1414
mp3_demuxer_select="mpegaudio_parser"
1415
mp4_muxer_select="mov_muxer"
1416
mpegtsraw_demuxer_select="mpegts_demuxer"
1417
mxf_d10_muxer_select="mxf_muxer"
1418
ogg_demuxer_select="golomb"
1419
psp_muxer_select="mov_muxer"
1420
rtp_demuxer_select="sdp_demuxer"
1421
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1422
rtsp_demuxer_select="http_protocol rtpdec"
1423
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1424
sap_demuxer_select="sdp_demuxer"
1425
sap_muxer_select="rtp_muxer rtp_protocol"
1426
sdp_demuxer_select="rtpdec"
1427
spdif_muxer_select="aac_parser"
1428
tg2_muxer_select="mov_muxer"
1429
tgp_muxer_select="mov_muxer"
1430
w64_demuxer_deps="wav_demuxer"
1431

    
1432
# indevs / outdevs
1433
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1434
alsa_outdev_deps="alsa_asoundlib_h"
1435
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1436
dv1394_indev_deps="dv1394 dv_demuxer"
1437
fbdev_indev_deps="linux_fb_h"
1438
jack_indev_deps="jack_jack_h"
1439
libdc1394_indev_deps="libdc1394"
1440
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1441
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1442
sndio_indev_deps="sndio_h"
1443
sndio_outdev_deps="sndio_h"
1444
v4l_indev_deps="linux_videodev_h"
1445
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1446
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1447
vfwcap_indev_extralibs="-lavicap32"
1448
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1449
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1450

    
1451
# protocols
1452
gopher_protocol_deps="network"
1453
http_protocol_deps="network"
1454
http_protocol_select="tcp_protocol"
1455
mmsh_protocol_select="http_protocol"
1456
mmst_protocol_deps="network"
1457
rtmp_protocol_select="tcp_protocol"
1458
rtp_protocol_select="udp_protocol"
1459
tcp_protocol_deps="network"
1460
udp_protocol_deps="network"
1461

    
1462
# filters
1463
blackframe_filter_deps="gpl"
1464
cropdetect_filter_deps="gpl"
1465
frei0r_filter_deps="frei0r dlopen strtok_r"
1466
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1467
hqdn3d_filter_deps="gpl"
1468
scale_filter_deps="swscale"
1469
ocv_filter_deps="libopencv"
1470
yadif_filter_deps="gpl"
1471

    
1472
# libraries
1473
avdevice_deps="avcodec avformat"
1474
avformat_deps="avcodec"
1475

    
1476
# programs
1477
ffmpeg_deps="avcodec avformat swscale"
1478
ffmpeg_select="buffer_filter"
1479
ffplay_deps="avcodec avformat swscale sdl"
1480
ffplay_select="rdft"
1481
ffprobe_deps="avcodec avformat"
1482
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1483
ffserver_extralibs='$ldl'
1484

    
1485
doc_deps="texi2html"
1486

    
1487
# tests
1488

    
1489
test_deps(){
1490
    suf1=$1
1491
    suf2=$2
1492
    shift 2
1493
    for v; do
1494
        dep=${v%=*}
1495
        tests=${v#*=}
1496
        for name in ${tests}; do
1497
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1498
        done
1499
    done
1500
}
1501

    
1502
set_ne_test_deps(){
1503
    eval ${1}_be_test_deps="bigendian"
1504
    eval ${1}_le_test_deps="!bigendian"
1505
}
1506

    
1507
test_deps _encoder _decoder                                             \
1508
    adpcm_g726=g726                                                     \
1509
    adpcm_ima_qt                                                        \
1510
    adpcm_ima_wav                                                       \
1511
    adpcm_ms                                                            \
1512
    adpcm_swf                                                           \
1513
    adpcm_yamaha=adpcm_yam                                              \
1514
    alac                                                                \
1515
    asv1                                                                \
1516
    asv2                                                                \
1517
    bmp                                                                 \
1518
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1519
    dvvideo="dv dv50"                                                   \
1520
    ffv1                                                                \
1521
    flac                                                                \
1522
    flashsv                                                             \
1523
    flv                                                                 \
1524
    gif                                                                 \
1525
    h261                                                                \
1526
    h263="h263 h263p"                                                   \
1527
    huffyuv                                                             \
1528
    jpegls                                                              \
1529
    mjpeg="jpg mjpeg ljpeg"                                             \
1530
    mp2                                                                 \
1531
    mpeg1video="mpeg mpeg1b"                                            \
1532
    mpeg2video="mpeg2 mpeg2thread"                                      \
1533
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1534
    msmpeg4v3=msmpeg4                                                   \
1535
    msmpeg4v2                                                           \
1536
    pbm=pbmpipe                                                         \
1537
    pcx                                                                 \
1538
    pgm="pgm pgmpipe"                                                   \
1539
    png                                                                 \
1540
    ppm="ppm ppmpipe"                                                   \
1541
    rawvideo="rgb yuv"                                                  \
1542
    roq                                                                 \
1543
    rv10                                                                \
1544
    rv20                                                                \
1545
    sgi                                                                 \
1546
    snow="snow snowll"                                                  \
1547
    svq1                                                                \
1548
    targa=tga                                                           \
1549
    tiff                                                                \
1550
    wmav1                                                               \
1551
    wmav2                                                               \
1552
    wmv1                                                                \
1553
    wmv2                                                                \
1554

    
1555
test_deps _muxer _demuxer                                               \
1556
    aiff                                                                \
1557
    pcm_alaw=alaw                                                       \
1558
    asf                                                                 \
1559
    au                                                                  \
1560
    avi                                                                 \
1561
    dv=dv_fmt                                                           \
1562
    ffm                                                                 \
1563
    flv=flv_fmt                                                         \
1564
    gxf                                                                 \
1565
    matroska=mkv                                                        \
1566
    mmf                                                                 \
1567
    mov                                                                 \
1568
    pcm_mulaw=mulaw                                                     \
1569
    mxf                                                                 \
1570
    nut                                                                 \
1571
    ogg                                                                 \
1572
    rawvideo=pixfmt                                                     \
1573
    rm                                                                  \
1574
    swf                                                                 \
1575
    mpegts=ts                                                           \
1576
    voc                                                                 \
1577
    wav                                                                 \
1578
    yuv4mpegpipe=yuv4mpeg                                               \
1579

    
1580
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1581
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1582

    
1583
set_ne_test_deps pixdesc
1584
set_ne_test_deps pixfmts_copy
1585
set_ne_test_deps pixfmts_crop
1586
set_ne_test_deps pixfmts_hflip
1587
set_ne_test_deps pixfmts_null
1588
set_ne_test_deps pixfmts_pad
1589
set_ne_test_deps pixfmts_scale
1590
set_ne_test_deps pixfmts_vflip
1591

    
1592
# default parameters
1593

    
1594
logfile="config.log"
1595

    
1596
# installation paths
1597
prefix_default="/usr/local"
1598
bindir_default='${prefix}/bin'
1599
datadir_default='${prefix}/share/ffmpeg'
1600
incdir_default='${prefix}/include'
1601
libdir_default='${prefix}/lib'
1602
mandir_default='${prefix}/share/man'
1603
shlibdir_default="$libdir_default"
1604

    
1605
# toolchain
1606
ar_default="ar"
1607
cc_default="gcc"
1608
cc_version=\"unknown\"
1609
host_cc_default="gcc"
1610
ln_s="ln -sf"
1611
nm_default="nm"
1612
objformat="elf"
1613
pkg_config_default=pkg-config
1614
ranlib="ranlib"
1615
yasmexe="yasm"
1616
nogas=":"
1617

    
1618
nm_opts='-g'
1619

    
1620
# machine
1621
arch_default=$(uname -m)
1622
cpu="generic"
1623

    
1624
# OS
1625
target_os_default=$(tolower $(uname -s))
1626
host_os=$target_os_default
1627

    
1628
# configurable options
1629
enable avcodec
1630
enable avdevice
1631
enable avfilter
1632
enable avformat
1633
enable avutil
1634
enable asm
1635
enable debug
1636
enable doc
1637
enable fastdiv
1638
enable ffmpeg
1639
enable ffplay
1640
enable ffprobe
1641
enable ffserver
1642
enable mpegaudio_hp
1643
enable network
1644
enable optimizations
1645
enable protocols
1646
enable static
1647
enable swscale
1648
enable swscale_alpha
1649

    
1650
# build settings
1651
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1652
FFSERVERLDFLAGS=-Wl,-E
1653
LIBPREF="lib"
1654
LIBSUF=".a"
1655
FULLNAME='$(NAME)$(BUILDSUF)'
1656
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1657
SLIBPREF="lib"
1658
SLIBSUF=".so"
1659
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1660
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1661
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1662
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1663

    
1664
CC_O='-o $@'
1665

    
1666
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1667
host_libs='-lm'
1668

    
1669
target_path='$(CURDIR)'
1670

    
1671
# since the object filename is not given with the -MM flag, the compiler
1672
# is only able to print the basename, and we must add the path ourselves
1673
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1674
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1675

    
1676
# find source path
1677
source_path="$(dirname "$0")"
1678
enable source_path_used
1679
if test -f configure; then
1680
    source_path="$(pwd)"
1681
    disable source_path_used
1682
else
1683
    source_path="$(cd "$source_path"; pwd)"
1684
    echo "$source_path" | grep -q '[[:blank:]]' &&
1685
        die "Out of tree builds are impossible with whitespace in source path."
1686
    test -e "$source_path/config.h" &&
1687
        die "Out of tree builds are impossible with config.h in source dir."
1688
fi
1689

    
1690
for v in "$@"; do
1691
    r=${v#*=}
1692
    l=${v%"$r"}
1693
    r=$(sh_quote "$r")
1694
    LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1695
done
1696

    
1697
find_things(){
1698
    thing=$1
1699
    pattern=$2
1700
    file=$source_path/$3
1701
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1702
}
1703

    
1704
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1705
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1706
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1707
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1708
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1709
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1710
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1711
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1712
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1713
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1714
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1715

    
1716
find_tests(){
1717
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1718
}
1719

    
1720
ACODEC_TESTS=$(find_tests acodec)
1721
VCODEC_TESTS=$(find_tests vsynth1)
1722
LAVF_TESTS=$(find_tests lavf)
1723
LAVFI_TESTS=$(find_tests lavfi)
1724
SEEK_TESTS=$(find_tests seek seek_)
1725

    
1726
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1727

    
1728
for n in $COMPONENT_LIST; do
1729
    v=$(toupper ${n%s})_LIST
1730
    eval enable \$$v
1731
    eval ${n}_if_any="\$$v"
1732
done
1733

    
1734
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1735

    
1736
die_unknown(){
1737
    echo "Unknown option \"$1\"."
1738
    echo "See $0 --help for available options."
1739
    exit 1
1740
}
1741

    
1742
show_list() {
1743
    suffix=_$1
1744
    shift
1745
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1746
    exit 0
1747
}
1748

    
1749
for opt do
1750
    optval="${opt#*=}"
1751
    case "$opt" in
1752
    --extra-ldflags=*) add_ldflags $optval
1753
    ;;
1754
    --extra-libs=*) add_extralibs $optval
1755
    ;;
1756
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1757
    ;;
1758
    --enable-debug=*) debuglevel="$optval"
1759
    ;;
1760
    --disable-everything)
1761
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1762
    ;;
1763
    --enable-*=*|--disable-*=*)
1764
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1765
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1766
    eval list=\$$(toupper $thing)_LIST
1767
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1768
    $action $(filter "$name" $list)
1769
    ;;
1770
    --enable-?*|--disable-?*)
1771
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1772
    if is_in $option $COMPONENT_LIST; then
1773
        test $action = disable && action=unset
1774
        eval $action \$$(toupper ${option%s})_LIST
1775
    elif is_in $option $CMDLINE_SELECT; then
1776
        $action $option
1777
    else
1778
        die_unknown $opt
1779
    fi
1780
    ;;
1781
    --list-*)
1782
        NAME="${opt#--list-}"
1783
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1784
        NAME=${NAME%s}
1785
        eval show_list $NAME \$$(toupper $NAME)_LIST
1786
    ;;
1787
    --help|-h) show_help
1788
    ;;
1789
    *)
1790
    optname="${opt%%=*}"
1791
    optname="${optname#--}"
1792
    optname=$(echo "$optname" | sed 's/-/_/g')
1793
    if is_in $optname $CMDLINE_SET; then
1794
        eval $optname='$optval'
1795
    elif is_in $optname $CMDLINE_APPEND; then
1796
        append $optname "$optval"
1797
    else
1798
         die_unknown $opt
1799
    fi
1800
    ;;
1801
    esac
1802
done
1803

    
1804
disabled logging && logfile=/dev/null
1805

    
1806
echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1807
set >> $logfile
1808

    
1809
test -n "$cross_prefix" && enable cross_compile
1810

    
1811
if enabled cross_compile; then
1812
    test -n "$arch" && test -n "$target_os" ||
1813
        die "Must specify target arch and OS when cross-compiling"
1814
fi
1815

    
1816
set_default arch target_os
1817

    
1818
ar_default="${cross_prefix}${ar_default}"
1819
cc_default="${cross_prefix}${cc_default}"
1820
nm_default="${cross_prefix}${nm_default}"
1821
pkg_config_default="${cross_prefix}${pkg_config_default}"
1822
ranlib="${cross_prefix}${ranlib}"
1823

    
1824
sysinclude_default="${sysroot}/usr/include"
1825

    
1826
set_default cc nm pkg_config sysinclude
1827
enabled cross_compile || host_cc_default=$cc
1828
set_default host_cc
1829

    
1830
if ! $pkg_config --version >/dev/null 2>&1; then
1831
    warn "$pkg_config not found, library detection may fail."
1832
    pkg_config=false
1833
fi
1834

    
1835
exesuf() {
1836
    case $1 in
1837
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1838
    esac
1839
}
1840

    
1841
EXESUF=$(exesuf $target_os)
1842
HOSTEXESUF=$(exesuf $host_os)
1843

    
1844
# set temporary file name
1845
: ${TMPDIR:=$TEMPDIR}
1846
: ${TMPDIR:=$TMP}
1847
: ${TMPDIR:=/tmp}
1848

    
1849
if ! check_cmd mktemp -u XXXXXX; then
1850
    # simple replacement for missing mktemp
1851
    # NOT SAFE FOR GENERAL USE
1852
    mktemp(){
1853
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1854
    }
1855
fi
1856

    
1857
tmpfile(){
1858
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1859
        (set -C; exec > $tmp) 2>/dev/null ||
1860
        die "Unable to create temporary file in $TMPDIR."
1861
    append TMPFILES $tmp
1862
    eval $1=$tmp
1863
}
1864

    
1865
trap 'rm -f -- $TMPFILES' EXIT
1866

    
1867
tmpfile TMPC  .c
1868
tmpfile TMPE  $EXESUF
1869
tmpfile TMPH  .h
1870
tmpfile TMPO  .o
1871
tmpfile TMPS  .S
1872
tmpfile TMPV  .ver
1873
tmpfile TMPSH .sh
1874
tmpfile TMPASM .asm
1875

    
1876
unset -f mktemp
1877

    
1878
chmod +x $TMPE
1879

    
1880
# make sure we can execute files in $TMPDIR
1881
cat > $TMPSH 2>> $logfile <<EOF
1882
#! /bin/sh
1883
EOF
1884
chmod +x $TMPSH >> $logfile 2>&1
1885
if ! $TMPSH >> $logfile 2>&1; then
1886
    cat <<EOF
1887
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1888
variable to another directory and make sure that it is not mounted noexec.
1889
EOF
1890
    die "Sanity test failed."
1891
fi
1892

    
1893
filter_cflags=echo
1894
filter_cppflags=echo
1895
filter_asflags=echo
1896

    
1897
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1898
    cc_type=llvm_gcc
1899
    cc_version=__VERSION__
1900
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1901
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1902
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1903
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1904
    speed_cflags='-O3'
1905
    size_cflags='-Os'
1906
elif $cc -v 2>&1 | grep -qi ^gcc; then
1907
    cc_type=gcc
1908
    cc_version=__VERSION__
1909
    gcc_version=$($cc --version | head -n1)
1910
    gcc_basever=$($cc -dumpversion)
1911
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1912
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1913
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1914
    if ! $cc -dumpversion | grep -q '^2\.'; then
1915
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1916
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1917
    fi
1918
    speed_cflags='-O3'
1919
    size_cflags='-Os'
1920
elif $cc --version 2>/dev/null | grep -q Intel; then
1921
    cc_type=icc
1922
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1923
    cc_ident=$($cc --version | head -n1)
1924
    icc_version=$($cc -dumpversion)
1925
    CC_DEPFLAGS='-MMD'
1926
    AS_DEPFLAGS='-MMD'
1927
    speed_cflags='-O3'
1928
    size_cflags='-Os'
1929
    noopt_cflags='-O1'
1930
elif $cc -v 2>&1 | grep -q xlc; then
1931
    cc_type=xlc
1932
    cc_version="AV_STRINGIFY(__IBMC__)"
1933
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1934
    speed_cflags='-O5'
1935
    size_cflags='-O5 -qcompact'
1936
elif $cc -V 2>/dev/null | grep -q Compaq; then
1937
    cc_type=ccc
1938
    cc_version="AV_STRINGIFY(__DECC_VER)"
1939
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1940
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1941
    debuglevel=3
1942
    add_ldflags -Wl,-z,now # calls to libots crash without this
1943
    speed_cflags='-fast'
1944
    size_cflags='-O1'
1945
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1946
    test -d "$sysroot" || die "No valid sysroot specified."
1947
    cc_type=armcc
1948
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1949
    cc_ident=$($cc --vsn | head -n1)
1950
    armcc_conf="$PWD/armcc.conf"
1951
    $cc --arm_linux_configure                 \
1952
        --arm_linux_config_file="$armcc_conf" \
1953
        --configure_sysroot="$sysroot"        \
1954
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1955
        die "Error creating armcc configuration file."
1956
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1957
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1958
    as_default="${cross_prefix}gcc"
1959
    CC_DEPFLAGS='-MMD'
1960
    AS_DEPFLAGS='-MMD'
1961
    speed_cflags='-O3'
1962
    size_cflags='-Os'
1963
    filter_asflags="filter_out -W${armcc_opt}*"
1964
elif $cc -version 2>/dev/null | grep -q TMS470; then
1965
    cc_type=tms470
1966
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1967
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1968
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1969
    CC_O='-fr=$(@D)'
1970
    as_default="${cross_prefix}gcc"
1971
    ld_default="${cross_prefix}gcc"
1972
    TMPO=$(basename $TMPC .c).o
1973
    append TMPFILES $TMPO
1974
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1975
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1976
    AS_DEPFLAGS='-MMD'
1977
    speed_cflags='-O3 -mf=5'
1978
    size_cflags='-O3 -mf=2'
1979
    filter_cflags=tms470_flags
1980
    tms470_flags(){
1981
        for flag; do
1982
            case $flag in
1983
                -march=*|-mcpu=*)
1984
                    case "${flag#*=}" in
1985
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1986
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1987
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1988
                        armv6*|arm11*)          echo -mv=6   ;;
1989
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1990
                                                echo -mv=5e  ;;
1991
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1992
                    esac
1993
                    ;;
1994
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1995
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
1996
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1997
                -msoft-float)   echo --float_support=vfplib       ;;
1998
                -O[0-3]|-mf=*)  echo $flag                        ;;
1999
                -g)             echo -g -mn                       ;;
2000
                -pds=*)         echo $flag                        ;;
2001
            esac
2002
        done
2003
    }
2004
elif $cc -v 2>&1 | grep -q clang; then
2005
    cc_type=clang
2006
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2007
        cc_version=__clang_version__ || cc_version=__VERSION__
2008
    cc_ident=$($cc --version | head -n1)
2009
    CC_DEPFLAGS='-MMD'
2010
    AS_DEPFLAGS='-MMD'
2011
    speed_cflags='-O3'
2012
    size_cflags='-Os'
2013
elif $cc -V 2>&1 | grep -q Sun; then
2014
    cc_type=suncc
2015
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2016
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2017
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2018
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2019
    speed_cflags='-O5'
2020
    size_cflags='-O5 -xspace'
2021
    filter_cflags=suncc_flags
2022
    suncc_flags(){
2023
        for flag; do
2024
            case $flag in
2025
                -march=*|-mcpu=*)
2026
                    case "${flag#*=}" in
2027
                        native)                   echo -xtarget=native       ;;
2028
                        v9|niagara)               echo -xarch=sparc          ;;
2029
                        ultrasparc)               echo -xarch=sparcvis       ;;
2030
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2031
                        i586|pentium)             echo -xchip=pentium        ;;
2032
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2033
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2034
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2035
                        pentium4*)          echo -xtarget=pentium4           ;;
2036
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2037
                        *-sse3)             echo -xarch=sse3                 ;;
2038
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2039
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2040
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2041
                        k8|opteron|athlon64|athlon-fx)
2042
                                                  echo -xarch=sse2a          ;;
2043
                        athlon*)                  echo -xarch=pentium_proa   ;;
2044
                    esac
2045
                    ;;
2046
                -std=c99)             echo -xc99              ;;
2047
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2048
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2049
                -W*,*)                echo $flag              ;;
2050
                -f*-*|-W*)                                    ;;
2051
                *)                    echo $flag              ;;
2052
            esac
2053
        done
2054
    }
2055
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2056
    cc_type=pathscale
2057
    cc_version=__PATHSCALE__
2058
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2059
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2060
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2061
    speed_cflags='-O2'
2062
    size_cflags='-Os'
2063
elif $cc -v 2>&1 | grep -q Open64; then
2064
    cc_type=open64
2065
    cc_version=__OPEN64__
2066
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2067
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2068
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2069
    speed_cflags='-O2'
2070
    size_cflags='-Os'
2071
fi
2072

    
2073
test -n "$cc_type" && enable $cc_type ||
2074
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2075

    
2076
: ${as_default:=$cc}
2077
: ${dep_cc_default:=$cc}
2078
: ${ld_default:=$cc}
2079
set_default ar as dep_cc ld
2080

    
2081
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2082
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2083

    
2084
add_cflags $extra_cflags
2085
add_asflags $extra_cflags
2086

    
2087
if test -n "$sysroot"; then
2088
    case "$cc_type" in
2089
        gcc|llvm_gcc|clang)
2090
            add_cppflags --sysroot="$sysroot"
2091
            add_ldflags --sysroot="$sysroot"
2092
        ;;
2093
        tms470)
2094
            add_cppflags -I"$sysinclude"
2095
            add_ldflags  --sysroot="$sysroot"
2096
        ;;
2097
    esac
2098
fi
2099

    
2100
if test "$cpu" = host; then
2101
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2102

    
2103
    case "$cc_type" in
2104
        gcc|llvm_gcc)
2105
            check_native(){
2106
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2107
                sed -n "/$1=/{
2108
                            s/.*$1=\\([^ ]*\\).*/\\1/
2109
                            p
2110
                            q
2111
                        }" $TMPE
2112
            }
2113
            cpu=$(check_native -march || check_native -mcpu)
2114
        ;;
2115
    esac
2116

    
2117
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2118
fi
2119

    
2120
# Deal with common $arch aliases
2121
case "$arch" in
2122
    arm*)
2123
        arch="arm"
2124
    ;;
2125
    mips|mipsel|IP*)
2126
        arch="mips"
2127
    ;;
2128
    mips64*)
2129
        arch="mips"
2130
        subarch="mips64"
2131
    ;;
2132
    parisc|hppa)
2133
        arch="parisc"
2134
    ;;
2135
    parisc64|hppa64)
2136
        arch="parisc"
2137
        subarch="parisc64"
2138
    ;;
2139
    "Power Macintosh"|ppc|powerpc)
2140
        arch="ppc"
2141
    ;;
2142
    ppc64|powerpc64)
2143
        arch="ppc"
2144
        subarch="ppc64"
2145
    ;;
2146
    s390|s390x)
2147
        arch="s390"
2148
    ;;
2149
    sh4|sh)
2150
        arch="sh4"
2151
    ;;
2152
    sun4u|sparc64)
2153
        arch="sparc"
2154
        subarch="sparc64"
2155
    ;;
2156
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2157
        arch="x86"
2158
    ;;
2159
esac
2160

    
2161
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2162
enable $arch
2163

    
2164
# Add processor-specific flags
2165
if test "$cpu" = generic; then
2166
    : do nothing
2167
elif enabled ppc; then
2168

    
2169
    case $(tolower $cpu) in
2170
        601|ppc601|powerpc601)
2171
            cpuflags="-mcpu=601"
2172
            disable altivec
2173
        ;;
2174
        603*|ppc603*|powerpc603*)
2175
            cpuflags="-mcpu=603"
2176
            disable altivec
2177
        ;;
2178
        604*|ppc604*|powerpc604*)
2179
            cpuflags="-mcpu=604"
2180
            disable altivec
2181
        ;;
2182
        g3|75*|ppc75*|powerpc75*)
2183
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2184
            disable altivec
2185
        ;;
2186
        g4|745*|ppc745*|powerpc745*)
2187
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2188
        ;;
2189
        74*|ppc74*|powerpc74*)
2190
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2191
        ;;
2192
        g5|970|ppc970|powerpc970|power4*)
2193
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2194
        ;;
2195
        cell)
2196
            cpuflags="-mcpu=cell"
2197
            enable ldbrx
2198
        ;;
2199
        e500v2)
2200
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2201
            disable altivec
2202
        ;;
2203
        e500)
2204
            cpuflags="-mcpu=8540 -mhard-float"
2205
            disable altivec
2206
        ;;
2207
    esac
2208

    
2209
elif enabled x86; then
2210

    
2211
    case $cpu in
2212
        i[345]86|pentium)
2213
            cpuflags="-march=$cpu"
2214
            disable mmx
2215
        ;;
2216
        # targets that do NOT support conditional mov (cmov)
2217
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2218
            cpuflags="-march=$cpu"
2219
            disable cmov
2220
        ;;
2221
        # targets that do support conditional mov (cmov)
2222
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2223
            cpuflags="-march=$cpu"
2224
            enable cmov
2225
            enable fast_cmov
2226
        ;;
2227
        # targets that do support conditional mov but on which it's slow
2228
        pentium4|pentium4m|prescott|nocona)
2229
            cpuflags="-march=$cpu"
2230
            enable cmov
2231
            disable fast_cmov
2232
        ;;
2233
    esac
2234

    
2235
elif enabled sparc; then
2236

    
2237
    case $cpu in
2238
        niagara)
2239
            cpuflags="-mcpu=$cpu"
2240
            disable vis
2241
        ;;
2242
        sparc64)
2243
            cpuflags="-mcpu=v9"
2244
        ;;
2245
    esac
2246

    
2247
elif enabled arm; then
2248

    
2249
    case $cpu in
2250
        armv*)
2251
            cpuflags="-march=$cpu"
2252
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2253
        ;;
2254
        *)
2255
            cpuflags="-mcpu=$cpu"
2256
            case $cpu in
2257
                cortex-a*)                               subarch=armv7a  ;;
2258
                cortex-r*)                               subarch=armv7r  ;;
2259
                cortex-m*)                               subarch=armv7m  ;;
2260
                arm11*)                                  subarch=armv6   ;;
2261
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2262
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2263
            esac
2264
        ;;
2265
    esac
2266

    
2267
elif enabled alpha; then
2268

    
2269
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2270

    
2271
elif enabled bfin; then
2272

    
2273
    cpuflags="-mcpu=$cpu"
2274

    
2275
elif enabled mips; then
2276

    
2277
    cpuflags="-march=$cpu"
2278

    
2279
elif enabled avr32; then
2280

    
2281
    case $cpu in
2282
        ap7[02]0[0-2])
2283
            subarch="avr32_ap"
2284
            cpuflags="-mpart=$cpu"
2285
        ;;
2286
        ap)
2287
            subarch="avr32_ap"
2288
            cpuflags="-march=$cpu"
2289
        ;;
2290
        uc3[ab]*)
2291
            subarch="avr32_uc"
2292
            cpuflags="-mcpu=$cpu"
2293
        ;;
2294
        uc)
2295
            subarch="avr32_uc"
2296
            cpuflags="-march=$cpu"
2297
        ;;
2298
    esac
2299

    
2300
fi
2301

    
2302
add_cflags $cpuflags
2303
add_asflags $cpuflags
2304

    
2305
# compiler sanity check
2306
check_exec <<EOF
2307
int main(void){ return 0; }
2308
EOF
2309
if test "$?" != 0; then
2310
    echo "$cc is unable to create an executable file."
2311
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2312
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2313
        echo "Only do this if you know what cross compiling means."
2314
    fi
2315
    die "C compiler test failed."
2316
fi
2317

    
2318
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2319
check_cflags -std=c99
2320
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2321
#include <stdlib.h>
2322
EOF
2323
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2324
#include <stdlib.h>
2325
EOF
2326

    
2327
check_host_cflags -std=c99
2328

    
2329
case "$arch" in
2330
    alpha|ia64|mips|parisc|sparc)
2331
        spic=$shared
2332
    ;;
2333
    x86)
2334
        subarch="x86_32"
2335
        check_cc <<EOF && subarch="x86_64"
2336
        int test[(int)sizeof(char*) - 7];
2337
EOF
2338
        if test "$subarch" = "x86_64"; then
2339
            spic=$shared
2340
        fi
2341
    ;;
2342
esac
2343

    
2344
enable $subarch
2345
enabled spic && enable pic
2346

    
2347
# OS specific
2348
case $target_os in
2349
    haiku)
2350
        prefix_default="/boot/common"
2351
        network_extralibs="-lnetwork"
2352
        host_libs=
2353
        ;;
2354
    sunos)
2355
        FFSERVERLDFLAGS=""
2356
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2357
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2358
        network_extralibs="-lsocket -lnsl"
2359
        add_cppflags -D__EXTENSIONS__
2360
        nm_opts='-P -g'
2361
        ;;
2362
    netbsd)
2363
        disable symver
2364
        oss_indev_extralibs="-lossaudio"
2365
        oss_outdev_extralibs="-lossaudio"
2366
        add_cppflags -D_XOPEN_SOURCE=600
2367
        ;;
2368
    openbsd)
2369
        enable malloc_aligned
2370
        # On OpenBSD 4.5. the compiler does not use PIC unless
2371
        # explicitly using -fPIC. Libav builds fine without PIC,
2372
        # however the generated executable will not do anything
2373
        # (simply quits with exit-code 1, no crash, no output).
2374
        # Thus explicitly enable PIC here.
2375
        enable pic
2376
        disable symver
2377
        SHFLAGS='-shared'
2378
        oss_indev_extralibs="-lossaudio"
2379
        oss_outdev_extralibs="-lossaudio"
2380
        ;;
2381
    dragonfly)
2382
        enable malloc_aligned
2383
        disable symver
2384
        ;;
2385
    freebsd)
2386
        enable malloc_aligned
2387
        ;;
2388
    bsd/os)
2389
        add_extralibs -lpoll -lgnugetopt
2390
        ;;
2391
    darwin)
2392
        enable malloc_aligned
2393
        gas="gas-preprocessor.pl $cc"
2394
        enabled ppc && add_asflags -force_cpusubtype_ALL
2395
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2396
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2397
        add_ldflags -Wl,-dynamic,-search_paths_first
2398
        SLIBSUF=".dylib"
2399
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2400
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2401
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2402
        objformat="macho"
2403
        enabled x86_64 && objformat="macho64"
2404
        enabled_any pic shared ||
2405
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2406
        ;;
2407
    mingw32*)
2408
        if test $target_os = "mingw32ce"; then
2409
            disable network
2410
        else
2411
            target_os=mingw32
2412
        fi
2413
        LIBTARGET=i386
2414
        if enabled x86_64; then
2415
            enable malloc_aligned
2416
            LIBTARGET="i386:x86-64"
2417
        elif enabled arm; then
2418
            LIBTARGET=arm-wince
2419
        fi
2420
        shlibdir_default="$bindir_default"
2421
        SLIBPREF=""
2422
        SLIBSUF=".dll"
2423
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2424
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2425
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2426
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2427
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2428
            install -d "$(LIBDIR)"; \
2429
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2430
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2431
        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'
2432
        objformat="win32"
2433
        dlltool="${cross_prefix}dlltool"
2434
        enable dos_paths
2435
        check_cflags -fno-common
2436
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2437
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2438
                die "ERROR: MinGW runtime version must be >= 3.15."
2439
        add_cppflags -U__STRICT_ANSI__
2440
        ;;
2441
    cygwin*)
2442
        target_os=cygwin
2443
        shlibdir_default="$bindir_default"
2444
        SLIBPREF="cyg"
2445
        SLIBSUF=".dll"
2446
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2447
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2448
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2449
        objformat="win32"
2450
        enable dos_paths
2451
        check_cflags -fno-common
2452
        ;;
2453
    *-dos|freedos|opendos)
2454
        network_extralibs="-lsocket"
2455
        objformat="coff"
2456
        enable dos_paths
2457
        ;;
2458
    linux)
2459
        enable dv1394
2460
        ;;
2461
    irix*)
2462
        target_os=irix
2463
        ranlib="echo ignoring ranlib"
2464
        ;;
2465
    os/2*)
2466
        ln_s="cp -f"
2467
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2468
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2469
        FFSERVERLDFLAGS=""
2470
        LIBSUF="_s.a"
2471
        SLIBPREF=""
2472
        SLIBSUF=".dll"
2473
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2474
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2475
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2476
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2477
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2478
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2479
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2480
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2481
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2482
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2483
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2484
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2485
        enable dos_paths
2486
        ;;
2487
    gnu/kfreebsd)
2488
        ;;
2489
    gnu)
2490
        ;;
2491
    qnx)
2492
        add_cppflags -D_QNX_SOURCE
2493
        network_extralibs="-lsocket"
2494
        ;;
2495
    symbian)
2496
        SLIBSUF=".dll"
2497
        enable dos_paths
2498
        add_cflags --include=$sysinclude/gcce/gcce.h
2499
        ;;
2500
    none)
2501
        ;;
2502
    *)
2503
        die "Unknown OS '$target_os'."
2504
        ;;
2505
esac
2506

    
2507
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2508

    
2509
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2510

    
2511
set_default $PATHS_LIST
2512

    
2513
# we need to build at least one lib type
2514
if ! enabled_any static shared; then
2515
    cat <<EOF
2516
At least one library type must be built.
2517
Specify --enable-static to build the static libraries or --enable-shared to
2518
build the shared libraries as well. To only build the shared libraries specify
2519
--disable-static in addition to --enable-shared.
2520
EOF
2521
    exit 1;
2522
fi
2523

    
2524
disabled static && LIBNAME=""
2525

    
2526
die_license_disabled() {
2527
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2528
}
2529

    
2530
die_license_disabled gpl libx264
2531
die_license_disabled gpl libxavs
2532
die_license_disabled gpl libxvid
2533
die_license_disabled gpl postproc
2534
die_license_disabled gpl x11grab
2535

    
2536
die_license_disabled nonfree libfaac
2537

    
2538
die_license_disabled version3 libopencore_amrnb
2539
die_license_disabled version3 libopencore_amrwb
2540
die_license_disabled version3 libvo_aacenc
2541
die_license_disabled version3 libvo_amrwbenc
2542

    
2543
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2544

    
2545
disabled optimizations || check_cflags -fomit-frame-pointer
2546

    
2547
enable_pic() {
2548
    enable pic
2549
    add_cppflags -DPIC
2550
    add_cflags   -fPIC
2551
    add_asflags  -fPIC
2552
}
2553

    
2554
enabled pic && enable_pic
2555

    
2556
check_cc <<EOF || die "Symbol mangling check failed."
2557
int ff_extern;
2558
EOF
2559
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2560
extern_prefix=${sym%%ff_extern*}
2561

    
2562
check_cc <<EOF && enable inline_asm
2563
void foo(void) { __asm__ volatile ("" ::); }
2564
EOF
2565

    
2566
_restrict=
2567
for restrict_keyword in restrict __restrict__ __restrict; do
2568
    check_cc <<EOF && _restrict=$restrict_keyword && break
2569
void foo(char * $restrict_keyword p);
2570
EOF
2571
done
2572

    
2573
check_cc <<EOF && enable attribute_packed
2574
struct { int x; } __attribute__((packed)) x;
2575
EOF
2576

    
2577
check_cc <<EOF && enable attribute_may_alias
2578
union { int x; } __attribute__((may_alias)) x;
2579
EOF
2580

    
2581
check_cc <<EOF || die "endian test failed"
2582
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2583
EOF
2584
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2585

    
2586
if enabled alpha; then
2587

    
2588
    check_cflags -mieee
2589

    
2590
elif enabled arm; then
2591

    
2592
    check_cflags -marm
2593
    nogas=die
2594

    
2595
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2596
        enable vfp_args
2597
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2598
        case "${cross_prefix:-$cc}" in
2599
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2600
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2601
__asm__ (".eabi_attribute 28, 1");
2602
int main(void) { return 0; }
2603
EOF
2604
        esac
2605
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2606
    fi
2607

    
2608
    # We have to check if pld is a nop and disable it.
2609
    check_asm pld '"pld [r0]"'
2610

    
2611
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2612
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2613
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2614
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2615
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2616
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2617

    
2618
    enabled_all armv6t2 shared !pic && enable_pic
2619

    
2620
elif enabled mips; then
2621

    
2622
    check_asm loongson '"dmult.g $1, $2, $3"'
2623
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2624

    
2625
elif enabled ppc; then
2626

    
2627
    enable local_aligned_8 local_aligned_16
2628

    
2629
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2630
    check_asm ibm_asm   '"add 0, 0, 0"'
2631
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2632
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2633

    
2634
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2635
    if enabled altivec; then
2636
        nogas=warn
2637
        check_cflags -maltivec -mabi=altivec &&
2638
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2639
        check_cflags -faltivec
2640

    
2641
        # check if our compiler supports Motorola AltiVec C API
2642
        check_cc <<EOF || disable altivec
2643
$inc_altivec_h
2644
int main(void) {
2645
    vector signed int v1, v2, v3;
2646
    v1 = vec_add(v2,v3);
2647
    return 0;
2648
}
2649
EOF
2650

    
2651
        # check if our compiler supports braces for vector declarations
2652
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2653
$inc_altivec_h
2654
int main (void) { (vector int) {1}; return 0; }
2655
EOF
2656
    fi
2657

    
2658
elif enabled sparc; then
2659

    
2660
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2661
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2662

    
2663
elif enabled x86; then
2664

    
2665
    enable local_aligned_8 local_aligned_16
2666

    
2667
    # check whether EBP is available on x86
2668
    # As 'i' is stored on the stack, this program will crash
2669
    # if the base pointer is used to access it because the
2670
    # base pointer is cleared in the inline assembly code.
2671
    check_exec_crash <<EOF && enable ebp_available
2672
    volatile int i=0;
2673
    __asm__ volatile (
2674
        "xorl %%ebp, %%ebp"
2675
    ::: "%ebp");
2676
    return i;
2677
EOF
2678

    
2679
    # check whether EBX is available on x86
2680
    check_asm ebx_available '""::"b"(0)' &&
2681
        check_asm ebx_available '"":::"%ebx"'
2682

    
2683
    # check whether xmm clobbers are supported
2684
    check_asm xmm_clobbers '"":::"%xmm0"'
2685

    
2686
    # check whether more than 10 operands are supported
2687
    check_cc <<EOF && enable ten_operands
2688
int main(void) {
2689
    int x=0;
2690
    __asm__ volatile(
2691
        ""
2692
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2693
    );
2694
    return 0;
2695
}
2696
EOF
2697

    
2698
    # check whether binutils is new enough to compile SSSE3/MMX2
2699
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2700
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2701

    
2702
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2703

    
2704
    if ! disabled_any asm mmx yasm; then
2705
        if check_cmd $yasmexe --version; then
2706
            enabled x86_64 && yasm_extra="-m amd64"
2707
            yasm_debug="-g dwarf2"
2708
        elif check_cmd nasm -v; then
2709
            yasmexe=nasm
2710
            yasm_debug="-g -F dwarf"
2711
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2712
        fi
2713

    
2714
        YASMFLAGS="-f $objformat $yasm_extra"
2715
        enabled pic               && append YASMFLAGS "-DPIC"
2716
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2717
        case "$objformat" in
2718
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2719
        esac
2720

    
2721
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2722
            die "yasm not found, use --disable-yasm for a crippled build"
2723
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2724
    fi
2725

    
2726
    case "$cpu" in
2727
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2728
            disable fast_clz
2729
        ;;
2730
    esac
2731

    
2732
fi
2733

    
2734
if enabled asm; then
2735
    as=${gas:=$as}
2736
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2737
        $nogas "GNU assembler not found, install gas-preprocessor"
2738
fi
2739

    
2740
check_ldflags -Wl,--as-needed
2741

    
2742
if check_func dlopen; then
2743
    ldl=
2744
elif check_func dlopen -ldl; then
2745
    ldl=-ldl
2746
fi
2747

    
2748
if enabled network; then
2749
    check_type "sys/types.h sys/socket.h" socklen_t
2750
    check_type netdb.h "struct addrinfo"
2751
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2752
    check_type netinet/in.h "struct sockaddr_in6"
2753
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2754
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2755
    # Prefer arpa/inet.h over winsock2
2756
    if check_header arpa/inet.h ; then
2757
        check_func closesocket
2758
    elif check_header winsock2.h ; then
2759
        check_func_headers winsock2.h closesocket -lws2 && \
2760
            network_extralibs="-lws2" || \
2761
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2762
            network_extralibs="-lws2_32"; }
2763
        check_type ws2tcpip.h socklen_t
2764
        check_type ws2tcpip.h "struct addrinfo"
2765
        check_type ws2tcpip.h "struct ipv6_mreq"
2766
        check_type ws2tcpip.h "struct sockaddr_in6"
2767
        check_type ws2tcpip.h "struct sockaddr_storage"
2768
        check_struct winsock2.h "struct sockaddr" sa_len
2769
    else
2770
        disable network
2771
    fi
2772
fi
2773

    
2774
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2775
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2776

    
2777
check_func  fcntl
2778
check_func  fork
2779
check_func  getaddrinfo $network_extralibs
2780
check_func  gethrtime
2781
check_func  getrusage
2782
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2783
check_func  inet_aton $network_extralibs
2784
check_func  isatty
2785
check_func  ${malloc_prefix}memalign            && enable memalign
2786
check_func  mkstemp
2787
check_func  mmap
2788
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2789
check_func  setrlimit
2790
check_func  strerror_r
2791
check_func  strtok_r
2792
check_func_headers conio.h kbhit
2793
check_func_headers io.h setmode
2794
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2795
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2796
check_func_headers windows.h GetProcessTimes
2797
check_func_headers windows.h MapViewOfFile
2798
check_func_headers windows.h VirtualAlloc
2799

    
2800
check_header dlfcn.h
2801
check_header dxva2api.h
2802
check_header malloc.h
2803
check_header poll.h
2804
check_header sys/mman.h
2805
check_header sys/resource.h
2806
check_header sys/select.h
2807
check_header vdpau/vdpau.h
2808
check_header vdpau/vdpau_x11.h
2809
check_header X11/extensions/XvMClib.h
2810

    
2811
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2812

    
2813
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2814
     enabled_any $need_memalign ; then
2815
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2816
fi
2817

    
2818
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2819
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2820

    
2821
# check for some common methods of building with pthread support
2822
# do this before the optional library checks as some of them require pthreads
2823
if ! disabled pthreads && ! enabled w32threads; then
2824
    enable pthreads
2825
    if check_func pthread_create; then
2826
        :
2827
    elif check_func pthread_create -pthread; then
2828
        add_cflags -pthread
2829
        add_extralibs -pthread
2830
    elif check_func pthread_create -pthreads; then
2831
        add_cflags -pthreads
2832
        add_extralibs -pthreads
2833
    elif check_func pthread_create -lpthreadGC2; then
2834
        add_extralibs -lpthreadGC2
2835
    elif ! check_lib pthread.h pthread_create -lpthread; then
2836
        disable pthreads
2837
    fi
2838
fi
2839

    
2840
for thread in $THREADS_LIST; do
2841
    if enabled $thread; then
2842
        test -n "$thread_type" &&
2843
            die "ERROR: Only one thread type must be selected." ||
2844
            thread_type="$thread"
2845
    fi
2846
done
2847

    
2848
check_lib math.h sin -lm && LIBM="-lm"
2849
enabled vaapi && require vaapi va/va.h vaInitialize -lva
2850

    
2851
check_mathfunc exp2
2852
check_mathfunc exp2f
2853
check_mathfunc llrint
2854
check_mathfunc llrintf
2855
check_mathfunc log2
2856
check_mathfunc log2f
2857
check_mathfunc lrint
2858
check_mathfunc lrintf
2859
check_mathfunc round
2860
check_mathfunc roundf
2861
check_mathfunc trunc
2862
check_mathfunc truncf
2863

    
2864
# these are off by default, so fail if requested and not available
2865
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2866
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2867
enabled libdirac   && require_pkg_config dirac                          \
2868
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2869
    "dirac_decoder_init dirac_encoder_init"
2870
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2871
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2872
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2873
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2874
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2875
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2876
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2877
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2878
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2879
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2880
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2881
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2882
enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2883
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2884
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2885
enabled libvpx     && {
2886
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2887
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2888
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2889
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2890
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2891
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2892
                        die "ERROR: libx264 version must be >= 0.99."; }
2893
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2894
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2895
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2896

    
2897
# libdc1394 check
2898
if enabled libdc1394; then
2899
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2900
        enable libdc1394_2; } ||
2901
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2902
        enable libdc1394_1; } ||
2903
    die "ERROR: No version of libdc1394 found "
2904
fi
2905

    
2906
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2907
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2908
    enable sdl &&
2909
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2910
fi
2911

    
2912
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2913

    
2914
check_header linux/fb.h
2915
check_header linux/videodev.h
2916
check_header linux/videodev2.h
2917
check_header sys/videoio.h
2918

    
2919
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2920
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2921
# w32api 3.12 had it defined wrong
2922
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2923

    
2924
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2925
{ check_header dev/bktr/ioctl_meteor.h &&
2926
  check_header dev/bktr/ioctl_bt848.h; } ||
2927
{ check_header machine/ioctl_meteor.h &&
2928
  check_header machine/ioctl_bt848.h; } ||
2929
{ check_header dev/video/meteor/ioctl_meteor.h &&
2930
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2931
check_header dev/ic/bt8xx.h
2932

    
2933
check_header sndio.h
2934
check_header sys/soundcard.h
2935
check_header soundcard.h
2936

    
2937
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2938

    
2939
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2940

    
2941
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2942

    
2943
enabled x11grab                         &&
2944
check_header X11/Xlib.h                 &&
2945
check_header X11/extensions/XShm.h      &&
2946
check_header X11/extensions/Xfixes.h    &&
2947
check_func XOpenDisplay -lX11           &&
2948
check_func XShmCreateImage -lX11 -lXext &&
2949
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2950

    
2951
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2952
check_cpp_condition \
2953
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2954
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2955
      disable vdpau; }
2956
fi
2957

    
2958
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2959

    
2960
# add some useful compiler flags if supported
2961
check_cflags -Wdeclaration-after-statement
2962
check_cflags -Wall
2963
check_cflags -Wno-parentheses
2964
check_cflags -Wno-switch
2965
check_cflags -Wdisabled-optimization
2966
check_cflags -Wpointer-arith
2967
check_cflags -Wredundant-decls
2968
check_cflags -Wno-pointer-sign
2969
check_cflags -Wcast-qual
2970
check_cflags -Wwrite-strings
2971
check_cflags -Wtype-limits
2972
check_cflags -Wundef
2973
check_cflags -Wmissing-prototypes
2974
enabled extra_warnings && check_cflags -Winline
2975

    
2976
# add some linker flags
2977
check_ldflags -Wl,--warn-common
2978
check_ldflags '-Wl,-rpath-link,\$(BUILD_ROOT)/libpostproc -Wl,-rpath-link,\$(BUILD_ROOT)/libswscale -Wl,-rpath-link,\$(BUILD_ROOT)/libavfilter -Wl,-rpath-link,\$(BUILD_ROOT)/libavdevice -Wl,-rpath-link,\$(BUILD_ROOT)/libavformat -Wl,-rpath-link,\$(BUILD_ROOT)/libavcodec -Wl,-rpath-link,\$(BUILD_ROOT)/libavutil'
2979
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2980

    
2981
echo "X{};" > $TMPV
2982
if test_ldflags -Wl,--version-script,$TMPV; then
2983
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2984
    check_cc <<EOF && enable symver_asm_label
2985
void ff_foo(void) __asm__ ("av_foo@VERSION");
2986
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2987
EOF
2988
    check_cc <<EOF && enable symver_gnu_asm
2989
__asm__(".symver ff_foo,av_foo@VERSION");
2990
void ff_foo(void) {}
2991
EOF
2992
fi
2993

    
2994
if enabled small; then
2995
    add_cflags $size_cflags
2996
    optimizations="small"
2997
elif enabled optimizations; then
2998
    add_cflags $speed_cflags
2999
else
3000
    add_cflags $noopt_cflags
3001
fi
3002
check_cflags -fno-math-errno
3003
check_cflags -fno-signed-zeros
3004

    
3005
if enabled icc; then
3006
    # Just warnings, no remarks
3007
    check_cflags -w1
3008
    # -wd: Disable following warnings
3009
    # 144, 167, 556: -Wno-pointer-sign
3010
    # 1292: attribute "foo" ignored
3011
    # 10006: ignoring unknown option -fno-signed-zeros
3012
    # 10148: ignoring unknown option -Wno-parentheses
3013
    # 10156: ignoring option '-W'; no argument required
3014
    check_cflags -wd144,167,556,1292,10006,10148,10156
3015
    # 11030: Warning unknown option --as-needed
3016
    # 10156: ignoring option '-export'; no argument required
3017
    check_ldflags -wd10156,11030
3018
    # Allow to compile with optimizations
3019
    check_ldflags -march=$cpu
3020
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3021
    enable ebp_available
3022
    if enabled x86_32; then
3023
        test ${icc_version%%.*} -ge 11 && \
3024
            check_cflags -falign-stack=maintain-16-byte || \
3025
            disable aligned_stack
3026
    fi
3027
elif enabled ccc; then
3028
    # disable some annoying warnings
3029
    add_cflags -msg_disable cvtu32to64
3030
    add_cflags -msg_disable embedcomment
3031
    add_cflags -msg_disable needconstext
3032
    add_cflags -msg_disable nomainieee
3033
    add_cflags -msg_disable ptrmismatch1
3034
    add_cflags -msg_disable unreachcode
3035
elif enabled gcc; then
3036
    check_cflags -fno-tree-vectorize
3037
    check_cflags -Werror=implicit-function-declaration
3038
    check_cflags -Werror=missing-prototypes
3039
elif enabled llvm_gcc; then
3040
    check_cflags -mllvm -stack-alignment=16
3041
elif enabled clang; then
3042
    check_cflags -mllvm -stack-alignment=16
3043
    check_cflags -Qunused-arguments
3044
elif enabled armcc; then
3045
    # 2523: use of inline assembler is deprecated
3046
    add_cflags -W${armcc_opt},--diag_suppress=2523
3047
    add_cflags -W${armcc_opt},--diag_suppress=1207
3048
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3049
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3050
elif enabled tms470; then
3051
    add_cflags -pds=824 -pds=837
3052
elif enabled pathscale; then
3053
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3054
fi
3055

    
3056
enabled_any $THREADS_LIST      && enable threads
3057

    
3058
check_deps $CONFIG_LIST       \
3059
           $CONFIG_EXTRA      \
3060
           $HAVE_LIST         \
3061
           $DECODER_LIST      \
3062
           $ENCODER_LIST      \
3063
           $HWACCEL_LIST      \
3064
           $PARSER_LIST       \
3065
           $BSF_LIST          \
3066
           $DEMUXER_LIST      \
3067
           $MUXER_LIST        \
3068
           $FILTER_LIST       \
3069
           $INDEV_LIST        \
3070
           $OUTDEV_LIST       \
3071
           $PROTOCOL_LIST     \
3072
           $ACODEC_TESTS      \
3073
           $VCODEC_TESTS      \
3074
           $LAVF_TESTS        \
3075
           $LAVFI_TESTS       \
3076
           $SEEK_TESTS        \
3077

    
3078
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3079

    
3080
echo "install prefix            $prefix"
3081
echo "source path               $source_path"
3082
echo "C compiler                $cc"
3083
echo "ARCH                      $arch ($cpu)"
3084
if test "$build_suffix" != ""; then
3085
    echo "build suffix              $build_suffix"
3086
fi
3087
if test "$extra_version" != ""; then
3088
    echo "version string suffix     $extra_version"
3089
fi
3090
echo "big-endian                ${bigendian-no}"
3091
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3092
if enabled x86; then
3093
    echo "yasm                      ${yasm-no}"
3094
    echo "MMX enabled               ${mmx-no}"
3095
    echo "MMX2 enabled              ${mmx2-no}"
3096
    echo "3DNow! enabled            ${amd3dnow-no}"
3097
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3098
    echo "SSE enabled               ${sse-no}"
3099
    echo "SSSE3 enabled             ${ssse3-no}"
3100
    echo "CMOV enabled              ${cmov-no}"
3101
    echo "CMOV is fast              ${fast_cmov-no}"
3102
    echo "EBX available             ${ebx_available-no}"
3103
    echo "EBP available             ${ebp_available-no}"
3104
    echo "10 operands supported     ${ten_operands-no}"
3105
fi
3106
if enabled arm; then
3107
    echo "ARMv5TE enabled           ${armv5te-no}"
3108
    echo "ARMv6 enabled             ${armv6-no}"
3109
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3110
    echo "ARM VFP enabled           ${armvfp-no}"
3111
    echo "IWMMXT enabled            ${iwmmxt-no}"
3112
    echo "NEON enabled              ${neon-no}"
3113
fi
3114
if enabled mips; then
3115
    echo "MMI enabled               ${mmi-no}"
3116
fi
3117
if enabled ppc; then
3118
    echo "AltiVec enabled           ${altivec-no}"
3119
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3120
    echo "dcbzl available           ${dcbzl-no}"
3121
fi
3122
if enabled sparc; then
3123
    echo "VIS enabled               ${vis-no}"
3124
fi
3125
echo "debug symbols             ${debug-no}"
3126
echo "optimizations             ${optimizations-no}"
3127
echo "static                    ${static-no}"
3128
echo "shared                    ${shared-no}"
3129
echo "postprocessing support    ${postproc-no}"
3130
echo "new filter support        ${avfilter-no}"
3131
echo "network support           ${network-no}"
3132
echo "threading support         ${thread_type-no}"
3133
echo "SDL support               ${sdl-no}"
3134
echo "Sun medialib support      ${mlib-no}"
3135
echo "AVISynth enabled          ${avisynth-no}"
3136
echo "frei0r enabled            ${frei0r-no}"
3137
echo "libdc1394 support         ${libdc1394-no}"
3138
echo "libdirac enabled          ${libdirac-no}"
3139
echo "libfaac enabled           ${libfaac-no}"
3140
echo "libgsm enabled            ${libgsm-no}"
3141
echo "libmp3lame enabled        ${libmp3lame-no}"
3142
echo "libnut enabled            ${libnut-no}"
3143
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3144
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3145
echo "libopencv support         ${libopencv-no}"
3146
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3147
echo "librtmp enabled           ${librtmp-no}"
3148
echo "libschroedinger enabled   ${libschroedinger-no}"
3149
echo "libspeex enabled          ${libspeex-no}"
3150
echo "libtheora enabled         ${libtheora-no}"
3151
echo "libva enabled             ${vaapi-no}"
3152
echo "libvo-aacenc support      ${libvo_aacenc-no}"
3153
echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3154
echo "libvorbis enabled         ${libvorbis-no}"
3155
echo "libvpx enabled            ${libvpx-no}"
3156
echo "libx264 enabled           ${libx264-no}"
3157
echo "libxavs enabled           ${libxavs-no}"
3158
echo "libxvid enabled           ${libxvid-no}"
3159
echo "zlib enabled              ${zlib-no}"
3160
echo "bzlib enabled             ${bzlib-no}"
3161
echo
3162

    
3163
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3164
    echo "Enabled ${type}s:"
3165
    eval list=\$$(toupper $type)_LIST
3166
    print_enabled '_*' $list | sort | pr -r -3 -t
3167
    echo
3168
done
3169

    
3170
license="LGPL version 2.1 or later"
3171
if enabled nonfree; then
3172
    license="nonfree and unredistributable"
3173
elif enabled gplv3; then
3174
    license="GPL version 3 or later"
3175
elif enabled lgplv3; then
3176
    license="LGPL version 3 or later"
3177
elif enabled gpl; then
3178
    license="GPL version 2 or later"
3179
fi
3180

    
3181
echo "License: $license"
3182

    
3183
echo "Creating config.mak and config.h..."
3184

    
3185
# build tree in object directory if source path is different from current one
3186
if enabled source_path_used; then
3187
    DIRS="
3188
        doc
3189
        libavcodec
3190
        libavcodec/$arch
3191
        libavdevice
3192
        libavfilter
3193
        libavfilter/$arch
3194
        libavformat
3195
        libavutil
3196
        libavutil/$arch
3197
        libpostproc
3198
        libswscale
3199
        libswscale/$arch
3200
        tests
3201
        tools
3202
    "
3203
    FILES="
3204
        Makefile
3205
        common.mak
3206
        subdir.mak
3207
        doc/texi2pod.pl
3208
        libavcodec/Makefile
3209
        libavcodec/${arch}/Makefile
3210
        libavdevice/Makefile
3211
        libavfilter/Makefile
3212
        libavfilter/${arch}/Makefile
3213
        libavformat/Makefile
3214
        libavutil/Makefile
3215
        libpostproc/Makefile
3216
        libswscale/Makefile
3217
    "
3218
    map 'mkdir -p $v' $DIRS;
3219
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3220
fi
3221

    
3222
config_files="$TMPH config.mak"
3223

    
3224
cat > config.mak <<EOF
3225
# Automatically generated by configure - do not modify!
3226
ifndef LIBAV_CONFIG_MAK
3227
LIBAV_CONFIG_MAK=1
3228
LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3229
prefix=$prefix
3230
LIBDIR=\$(DESTDIR)$libdir
3231
SHLIBDIR=\$(DESTDIR)$shlibdir
3232
INCDIR=\$(DESTDIR)$incdir
3233
BINDIR=\$(DESTDIR)$bindir
3234
DATADIR=\$(DESTDIR)$datadir
3235
MANDIR=\$(DESTDIR)$mandir
3236
SRC_PATH="$source_path"
3237
SRC_PATH_BARE=$source_path
3238
BUILD_ROOT="$PWD"
3239
CC_IDENT=$cc_ident
3240
ARCH=$arch
3241
CC=$cc
3242
AS=$as
3243
LD=$ld
3244
DEPCC=$dep_cc
3245
YASM=$yasmexe
3246
YASMDEP=$yasmexe
3247
AR=$ar
3248
RANLIB=$ranlib
3249
LN_S=$ln_s
3250
CPPFLAGS=$CPPFLAGS
3251
CFLAGS=$CFLAGS
3252
ASFLAGS=$ASFLAGS
3253
CC_O=$CC_O
3254
DLLTOOL=$dlltool
3255
LDFLAGS=$LDFLAGS
3256
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3257
SHFLAGS=$SHFLAGS
3258
YASMFLAGS=$YASMFLAGS
3259
BUILDSUF=$build_suffix
3260
FULLNAME=$FULLNAME
3261
LIBPREF=$LIBPREF
3262
LIBSUF=$LIBSUF
3263
LIBNAME=$LIBNAME
3264
SLIBPREF=$SLIBPREF
3265
SLIBSUF=$SLIBSUF
3266
EXESUF=$EXESUF
3267
EXTRA_VERSION=$extra_version
3268
DEPFLAGS=$DEPFLAGS
3269
CCDEP=$CCDEP
3270
ASDEP=$ASDEP
3271
CC_DEPFLAGS=$CC_DEPFLAGS
3272
AS_DEPFLAGS=$AS_DEPFLAGS
3273
HOSTCC=$host_cc
3274
HOSTCFLAGS=$host_cflags
3275
HOSTEXESUF=$HOSTEXESUF
3276
HOSTLDFLAGS=$host_ldflags
3277
HOSTLIBS=$host_libs
3278
TARGET_EXEC=$target_exec
3279
TARGET_PATH=$target_path
3280
SDL_LIBS=$sdl_libs
3281
SDL_CFLAGS=$sdl_cflags
3282
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3283
EXTRALIBS=$extralibs
3284
INSTALL=install
3285
LIBTARGET=${LIBTARGET}
3286
SLIBNAME=${SLIBNAME}
3287
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3288
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3289
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3290
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3291
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3292
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3293
SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3294
EOF
3295

    
3296
get_version(){
3297
    name=$1
3298
    file=$source_path/$2
3299
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3300
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3301
    lcname=$(tolower $name)
3302
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3303
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3304
}
3305

    
3306
get_version LIBSWSCALE  libswscale/swscale.h
3307
get_version LIBPOSTPROC libpostproc/postprocess.h
3308
get_version LIBAVCODEC  libavcodec/version.h
3309
get_version LIBAVDEVICE libavdevice/avdevice.h
3310
get_version LIBAVFORMAT libavformat/version.h
3311
get_version LIBAVUTIL   libavutil/avutil.h
3312
get_version LIBAVFILTER libavfilter/avfilter.h
3313

    
3314
cat > $TMPH <<EOF
3315
/* Automatically generated by configure - do not modify! */
3316
#ifndef LIBAV_CONFIG_H
3317
#define LIBAV_CONFIG_H
3318
#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3319
#define LIBAV_LICENSE "$(c_escape $license)"
3320
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3321
#define CC_TYPE "$cc_type"
3322
#define CC_VERSION $cc_version
3323
#define restrict $_restrict
3324
#define EXTERN_PREFIX "${extern_prefix}"
3325
#define EXTERN_ASM ${extern_prefix}
3326
#define SLIBSUF "$SLIBSUF"
3327
EOF
3328

    
3329
test -n "$malloc_prefix" &&
3330
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3331

    
3332
if enabled small || disabled optimizations; then
3333
    echo "#undef  av_always_inline"  >> $TMPH
3334
    if enabled small; then
3335
        echo "#define av_always_inline inline"  >> $TMPH
3336
    else
3337
        echo "#define av_always_inline av_unused"  >> $TMPH
3338
    fi
3339
fi
3340

    
3341
if enabled yasm; then
3342
    append config_files $TMPASM
3343
    printf '' >$TMPASM
3344
fi
3345

    
3346
print_config ARCH_   "$config_files" $ARCH_LIST
3347
print_config HAVE_   "$config_files" $HAVE_LIST
3348
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3349
                                     $CONFIG_EXTRA      \
3350
                                     $DECODER_LIST      \
3351
                                     $ENCODER_LIST      \
3352
                                     $HWACCEL_LIST      \
3353
                                     $PARSER_LIST       \
3354
                                     $BSF_LIST          \
3355
                                     $DEMUXER_LIST      \
3356
                                     $MUXER_LIST        \
3357
                                     $FILTER_LIST       \
3358
                                     $PROTOCOL_LIST     \
3359
                                     $INDEV_LIST        \
3360
                                     $OUTDEV_LIST       \
3361

    
3362
cat >>config.mak <<EOF
3363
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3364
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3365
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3366
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3367
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3368
EOF
3369

    
3370
echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3371
echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3372

    
3373
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3374
cp_if_changed $TMPH config.h
3375
touch .config
3376

    
3377
enabled yasm && cp_if_changed $TMPASM config.asm
3378

    
3379
cat > $TMPH <<EOF
3380
/* Generated by ffconf */
3381
#ifndef AVUTIL_AVCONFIG_H
3382
#define AVUTIL_AVCONFIG_H
3383
EOF
3384

    
3385
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3386

    
3387
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3388

    
3389
cp_if_changed $TMPH libavutil/avconfig.h
3390

    
3391
test -n "$WARNINGS" && printf "\n$WARNINGS"
3392

    
3393
# build pkg-config files
3394

    
3395
pkgconfig_generate(){
3396
name=$1
3397
shortname=${name#lib}${build_suffix}
3398
comment=$2
3399
version=$3
3400
libs=$4
3401
requires=$5
3402
enabled ${name#lib} || return 0
3403
cat <<EOF > $name/$name.pc
3404
prefix=$prefix
3405
exec_prefix=\${prefix}
3406
libdir=$libdir
3407
includedir=$incdir
3408

    
3409
Name: $name
3410
Description: $comment
3411
Version: $version
3412
Requires: $(enabled shared || echo $requires)
3413
Requires.private: $(enabled shared && echo $requires)
3414
Conflicts:
3415
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3416
Libs.private: $(enabled shared && echo $libs)
3417
Cflags: -I\${includedir}
3418
EOF
3419
cat <<EOF > $name/$name-uninstalled.pc
3420
prefix=
3421
exec_prefix=
3422
libdir=\${pcfiledir}
3423
includedir=${source_path}
3424

    
3425
Name: $name
3426
Description: $comment
3427
Version: $version
3428
Requires: $requires
3429
Conflicts:
3430
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3431
Cflags: -I\${includedir}
3432
EOF
3433
}
3434

    
3435
pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3436
pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3437
pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3438
pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3439
pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3440
pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3441
pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"