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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]
77
  --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
    truncf
1123
    vfp_args
1124
    VirtualAlloc
1125
    winsock2_h
1126
    xform_asm
1127
    xmm_clobbers
1128
    yasm
1129
"
1130

    
1131
# options emitted with CONFIG_ prefix but not available on command line
1132
CONFIG_EXTRA="
1133
    avutil
1134
    gplv3
1135
    lgplv3
1136
"
1137

    
1138
CMDLINE_SELECT="
1139
    $ARCH_EXT_LIST
1140
    $CONFIG_LIST
1141
    $THREADS_LIST
1142
    asm
1143
    cross_compile
1144
    debug
1145
    extra_warnings
1146
    logging
1147
    optimizations
1148
    symver
1149
    yasm
1150
"
1151

    
1152
PATHS_LIST='
1153
    bindir
1154
    datadir
1155
    incdir
1156
    libdir
1157
    mandir
1158
    prefix
1159
    shlibdir
1160
'
1161

    
1162
CMDLINE_SET="
1163
    $PATHS_LIST
1164
    ar
1165
    arch
1166
    as
1167
    build_suffix
1168
    cc
1169
    cpu
1170
    cross_prefix
1171
    dep_cc
1172
    extra_version
1173
    host_cc
1174
    host_cflags
1175
    host_ldflags
1176
    host_libs
1177
    host_os
1178
    ld
1179
    logfile
1180
    malloc_prefix
1181
    nm
1182
    pkg_config
1183
    samples
1184
    source_path
1185
    sysinclude
1186
    sysroot
1187
    target_exec
1188
    target_os
1189
    target_path
1190
"
1191

    
1192
CMDLINE_APPEND="
1193
    extra_cflags
1194
"
1195

    
1196
# code dependency declarations
1197

    
1198
# architecture extensions
1199

    
1200
armv5te_deps="arm"
1201
armv6_deps="arm"
1202
armv6t2_deps="arm"
1203
armvfp_deps="arm"
1204
iwmmxt_deps="arm"
1205
neon_deps="arm"
1206

    
1207
mmi_deps="mips"
1208

    
1209
altivec_deps="ppc"
1210
ppc4xx_deps="ppc"
1211

    
1212
vis_deps="sparc"
1213

    
1214
x86_64_suggest="cmov fast_cmov"
1215
amd3dnow_deps="mmx"
1216
amd3dnowext_deps="amd3dnow"
1217
mmx_deps="x86"
1218
mmx2_deps="mmx"
1219
sse_deps="mmx"
1220
ssse3_deps="sse"
1221
avx_deps="ssse3"
1222

    
1223
aligned_stack_if_any="ppc x86"
1224
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1225
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1226
fast_unaligned_if_any="armv6 ppc x86"
1227

    
1228
need_memalign="altivec neon sse"
1229
inline_asm_deps="!tms470"
1230

    
1231
symver_if_any="symver_asm_label symver_gnu_asm"
1232

    
1233
# subsystems
1234
dct_select="rdft"
1235
mdct_select="fft"
1236
rdft_select="fft"
1237

    
1238
# decoders / encoders / hardware accelerators
1239
aac_decoder_select="mdct rdft sinewin"
1240
aac_encoder_select="mdct sinewin"
1241
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1242
ac3_decoder_select="mdct ac3dsp ac3_parser"
1243
ac3_encoder_select="mdct ac3dsp"
1244
ac3_fixed_encoder_select="ac3dsp"
1245
alac_encoder_select="lpc"
1246
amrnb_decoder_select="lsp"
1247
amrwb_decoder_select="lsp"
1248
atrac1_decoder_select="mdct sinewin"
1249
atrac3_decoder_select="mdct"
1250
binkaudio_dct_decoder_select="mdct rdft dct"
1251
binkaudio_rdft_decoder_select="mdct rdft"
1252
cavs_decoder_select="golomb"
1253
cook_decoder_select="mdct sinewin"
1254
cscd_decoder_suggest="zlib"
1255
dca_decoder_select="mdct"
1256
dnxhd_encoder_select="aandct"
1257
dxa_decoder_select="zlib"
1258
eac3_decoder_select="ac3_decoder"
1259
eamad_decoder_select="aandct"
1260
eatgq_decoder_select="aandct"
1261
eatqi_decoder_select="aandct"
1262
ffv1_decoder_select="golomb"
1263
flac_decoder_select="golomb"
1264
flac_encoder_select="golomb lpc"
1265
flashsv_decoder_select="zlib"
1266
flashsv_encoder_select="zlib"
1267
flv_decoder_select="h263_decoder"
1268
flv_encoder_select="h263_encoder"
1269
fraps_decoder_select="huffman"
1270
h261_encoder_select="aandct"
1271
h263_decoder_select="h263_parser"
1272
h263_encoder_select="aandct"
1273
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1274
h263i_decoder_select="h263_decoder"
1275
h263p_encoder_select="h263_encoder"
1276
h264_decoder_select="golomb h264dsp h264pred"
1277
h264_dxva2_hwaccel_deps="dxva2api_h"
1278
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1279
h264_vaapi_hwaccel_select="vaapi"
1280
h264_vdpau_decoder_select="vdpau h264_decoder"
1281
imc_decoder_select="fft mdct"
1282
jpegls_decoder_select="golomb"
1283
jpegls_encoder_select="golomb"
1284
ljpeg_encoder_select="aandct"
1285
loco_decoder_select="golomb"
1286
mjpeg_encoder_select="aandct"
1287
mlp_decoder_select="mlp_parser"
1288
mp1float_decoder_select="dct"
1289
mp2float_decoder_select="dct"
1290
mp3adufloat_decoder_select="dct"
1291
mp3float_decoder_select="dct"
1292
mp3on4float_decoder_select="dct"
1293
mpeg1video_encoder_select="aandct"
1294
mpeg2video_encoder_select="aandct"
1295
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1296
mpeg4_encoder_select="h263_encoder"
1297
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1298
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1299
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1300
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1301
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1302
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1303
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1304
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1305
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1306
msmpeg4v1_decoder_select="h263_decoder"
1307
msmpeg4v1_encoder_select="h263_encoder"
1308
msmpeg4v2_decoder_select="h263_decoder"
1309
msmpeg4v2_encoder_select="h263_encoder"
1310
msmpeg4v3_decoder_select="h263_decoder"
1311
msmpeg4v3_encoder_select="h263_encoder"
1312
nellymoser_decoder_select="mdct sinewin"
1313
nellymoser_encoder_select="mdct sinewin"
1314
png_decoder_select="zlib"
1315
png_encoder_select="zlib"
1316
qcelp_decoder_select="lsp"
1317
qdm2_decoder_select="mdct rdft"
1318
ra_144_encoder_select="lpc"
1319
rv10_decoder_select="h263_decoder"
1320
rv10_encoder_select="h263_encoder"
1321
rv20_decoder_select="h263_decoder"
1322
rv20_encoder_select="h263_encoder"
1323
rv30_decoder_select="golomb h264pred"
1324
rv40_decoder_select="golomb h264pred"
1325
shorten_decoder_select="golomb"
1326
sipr_decoder_select="lsp"
1327
snow_decoder_select="dwt"
1328
snow_encoder_select="aandct dwt"
1329
svq1_encoder_select="aandct"
1330
svq3_decoder_select="golomb h264dsp h264pred"
1331
svq3_decoder_suggest="zlib"
1332
theora_decoder_select="vp3_decoder"
1333
tiff_decoder_suggest="zlib"
1334
tiff_encoder_suggest="zlib"
1335
truehd_decoder_select="mlp_decoder"
1336
tscc_decoder_select="zlib"
1337
twinvq_decoder_select="mdct lsp sinewin"
1338
vc1_decoder_select="h263_decoder"
1339
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1340
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1341
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1342
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1343
vorbis_decoder_select="mdct"
1344
vorbis_encoder_select="mdct"
1345
vp6_decoder_select="huffman"
1346
vp6a_decoder_select="vp6_decoder"
1347
vp6f_decoder_select="vp6_decoder"
1348
vp8_decoder_select="h264pred"
1349
wmapro_decoder_select="mdct sinewin"
1350
wmav1_decoder_select="mdct sinewin"
1351
wmav1_encoder_select="mdct sinewin"
1352
wmav2_decoder_select="mdct sinewin"
1353
wmav2_encoder_select="mdct sinewin"
1354
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1355
wmv1_decoder_select="h263_decoder"
1356
wmv1_encoder_select="h263_encoder"
1357
wmv2_decoder_select="h263_decoder"
1358
wmv2_encoder_select="h263_encoder"
1359
wmv3_decoder_select="vc1_decoder"
1360
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1361
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1362
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1363
zlib_decoder_select="zlib"
1364
zlib_encoder_select="zlib"
1365
zmbv_decoder_select="zlib"
1366
zmbv_encoder_select="zlib"
1367

    
1368
vaapi_deps="va_va_h"
1369
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1370

    
1371
# parsers
1372
h264_parser_select="golomb h264dsp h264pred"
1373

    
1374
# external libraries
1375
libdirac_decoder_deps="libdirac !libschroedinger"
1376
libdirac_encoder_deps="libdirac"
1377
libfaac_encoder_deps="libfaac"
1378
libgsm_decoder_deps="libgsm"
1379
libgsm_encoder_deps="libgsm"
1380
libgsm_ms_decoder_deps="libgsm"
1381
libgsm_ms_encoder_deps="libgsm"
1382
libmp3lame_encoder_deps="libmp3lame"
1383
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1384
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1385
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1386
libopenjpeg_decoder_deps="libopenjpeg"
1387
libschroedinger_decoder_deps="libschroedinger"
1388
libschroedinger_encoder_deps="libschroedinger"
1389
libspeex_decoder_deps="libspeex"
1390
libtheora_encoder_deps="libtheora"
1391
libvo_aacenc_encoder_deps="libvo_aacenc"
1392
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
1393
libvorbis_encoder_deps="libvorbis"
1394
libvpx_decoder_deps="libvpx"
1395
libvpx_encoder_deps="libvpx"
1396
libx264_encoder_deps="libx264"
1397
libxavs_encoder_deps="libxavs"
1398
libxvid_encoder_deps="libxvid"
1399

    
1400
# demuxers / muxers
1401
ac3_demuxer_select="ac3_parser"
1402
asf_stream_muxer_select="asf_muxer"
1403
avisynth_demuxer_deps="avisynth"
1404
dirac_demuxer_select="dirac_parser"
1405
eac3_demuxer_select="ac3_parser"
1406
flac_demuxer_select="flac_parser"
1407
ipod_muxer_select="mov_muxer"
1408
libnut_demuxer_deps="libnut"
1409
libnut_muxer_deps="libnut"
1410
matroska_audio_muxer_select="matroska_muxer"
1411
matroska_demuxer_suggest="zlib bzlib"
1412
mov_demuxer_suggest="zlib"
1413
mp3_demuxer_select="mpegaudio_parser"
1414
mp4_muxer_select="mov_muxer"
1415
mpegtsraw_demuxer_select="mpegts_demuxer"
1416
mxf_d10_muxer_select="mxf_muxer"
1417
ogg_demuxer_select="golomb"
1418
psp_muxer_select="mov_muxer"
1419
rtp_demuxer_select="sdp_demuxer"
1420
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1421
rtsp_demuxer_select="http_protocol rtpdec"
1422
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1423
sap_demuxer_select="sdp_demuxer"
1424
sap_muxer_select="rtp_muxer rtp_protocol"
1425
sdp_demuxer_select="rtpdec"
1426
spdif_muxer_select="aac_parser"
1427
tg2_muxer_select="mov_muxer"
1428
tgp_muxer_select="mov_muxer"
1429
w64_demuxer_deps="wav_demuxer"
1430

    
1431
# indevs / outdevs
1432
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1433
alsa_outdev_deps="alsa_asoundlib_h"
1434
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1435
dv1394_indev_deps="dv1394 dv_demuxer"
1436
fbdev_indev_deps="linux_fb_h"
1437
jack_indev_deps="jack_jack_h"
1438
libdc1394_indev_deps="libdc1394"
1439
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1440
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1441
sndio_indev_deps="sndio_h"
1442
sndio_outdev_deps="sndio_h"
1443
v4l_indev_deps="linux_videodev_h"
1444
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1445
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1446
vfwcap_indev_extralibs="-lavicap32"
1447
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1448
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1449

    
1450
# protocols
1451
gopher_protocol_deps="network"
1452
http_protocol_deps="network"
1453
http_protocol_select="tcp_protocol"
1454
mmsh_protocol_select="http_protocol"
1455
mmst_protocol_deps="network"
1456
rtmp_protocol_select="tcp_protocol"
1457
rtp_protocol_select="udp_protocol"
1458
tcp_protocol_deps="network"
1459
udp_protocol_deps="network"
1460

    
1461
# filters
1462
blackframe_filter_deps="gpl"
1463
cropdetect_filter_deps="gpl"
1464
frei0r_filter_deps="frei0r dlopen strtok_r"
1465
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1466
hqdn3d_filter_deps="gpl"
1467
scale_filter_deps="swscale"
1468
ocv_filter_deps="libopencv"
1469
yadif_filter_deps="gpl"
1470

    
1471
# libraries
1472
avdevice_deps="avcodec avformat"
1473
avformat_deps="avcodec"
1474

    
1475
# programs
1476
ffmpeg_deps="avcodec avformat swscale"
1477
ffmpeg_select="buffer_filter"
1478
ffplay_deps="avcodec avformat swscale sdl"
1479
ffplay_select="rdft"
1480
ffprobe_deps="avcodec avformat"
1481
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1482
ffserver_extralibs='$ldl'
1483

    
1484
doc_deps="texi2html"
1485

    
1486
# tests
1487

    
1488
test_deps(){
1489
    suf1=$1
1490
    suf2=$2
1491
    shift 2
1492
    for v; do
1493
        dep=${v%=*}
1494
        tests=${v#*=}
1495
        for name in ${tests}; do
1496
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1497
        done
1498
    done
1499
}
1500

    
1501
set_ne_test_deps(){
1502
    eval ${1}_be_test_deps="bigendian"
1503
    eval ${1}_le_test_deps="!bigendian"
1504
}
1505

    
1506
test_deps _encoder _decoder                                             \
1507
    adpcm_g726=g726                                                     \
1508
    adpcm_ima_qt                                                        \
1509
    adpcm_ima_wav                                                       \
1510
    adpcm_ms                                                            \
1511
    adpcm_swf                                                           \
1512
    adpcm_yamaha=adpcm_yam                                              \
1513
    alac                                                                \
1514
    asv1                                                                \
1515
    asv2                                                                \
1516
    bmp                                                                 \
1517
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1518
    dvvideo="dv dv50"                                                   \
1519
    ffv1                                                                \
1520
    flac                                                                \
1521
    flashsv                                                             \
1522
    flv                                                                 \
1523
    gif                                                                 \
1524
    h261                                                                \
1525
    h263="h263 h263p"                                                   \
1526
    huffyuv                                                             \
1527
    jpegls                                                              \
1528
    mjpeg="jpg mjpeg ljpeg"                                             \
1529
    mp2                                                                 \
1530
    mpeg1video="mpeg mpeg1b"                                            \
1531
    mpeg2video="mpeg2 mpeg2thread"                                      \
1532
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1533
    msmpeg4v3=msmpeg4                                                   \
1534
    msmpeg4v2                                                           \
1535
    pbm=pbmpipe                                                         \
1536
    pcx                                                                 \
1537
    pgm="pgm pgmpipe"                                                   \
1538
    png                                                                 \
1539
    ppm="ppm ppmpipe"                                                   \
1540
    rawvideo="rgb yuv"                                                  \
1541
    roq                                                                 \
1542
    rv10                                                                \
1543
    rv20                                                                \
1544
    sgi                                                                 \
1545
    snow="snow snowll"                                                  \
1546
    svq1                                                                \
1547
    targa=tga                                                           \
1548
    tiff                                                                \
1549
    wmav1                                                               \
1550
    wmav2                                                               \
1551
    wmv1                                                                \
1552
    wmv2                                                                \
1553

    
1554
test_deps _muxer _demuxer                                               \
1555
    aiff                                                                \
1556
    pcm_alaw=alaw                                                       \
1557
    asf                                                                 \
1558
    au                                                                  \
1559
    avi                                                                 \
1560
    dv=dv_fmt                                                           \
1561
    ffm                                                                 \
1562
    flv=flv_fmt                                                         \
1563
    gxf                                                                 \
1564
    matroska=mkv                                                        \
1565
    mmf                                                                 \
1566
    mov                                                                 \
1567
    pcm_mulaw=mulaw                                                     \
1568
    mxf                                                                 \
1569
    nut                                                                 \
1570
    ogg                                                                 \
1571
    rawvideo=pixfmt                                                     \
1572
    rm                                                                  \
1573
    swf                                                                 \
1574
    mpegts=ts                                                           \
1575
    voc                                                                 \
1576
    wav                                                                 \
1577
    yuv4mpegpipe=yuv4mpeg                                               \
1578

    
1579
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1580
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1581

    
1582
set_ne_test_deps pixdesc
1583
set_ne_test_deps pixfmts_copy
1584
set_ne_test_deps pixfmts_crop
1585
set_ne_test_deps pixfmts_hflip
1586
set_ne_test_deps pixfmts_null
1587
set_ne_test_deps pixfmts_pad
1588
set_ne_test_deps pixfmts_scale
1589
set_ne_test_deps pixfmts_vflip
1590

    
1591
# default parameters
1592

    
1593
logfile="config.log"
1594

    
1595
# installation paths
1596
prefix_default="/usr/local"
1597
bindir_default='${prefix}/bin'
1598
datadir_default='${prefix}/share/ffmpeg'
1599
incdir_default='${prefix}/include'
1600
libdir_default='${prefix}/lib'
1601
mandir_default='${prefix}/share/man'
1602
shlibdir_default="$libdir_default"
1603

    
1604
# toolchain
1605
ar_default="ar"
1606
cc_default="gcc"
1607
cc_version=\"unknown\"
1608
host_cc_default="gcc"
1609
ln_s="ln -sf"
1610
nm_default="nm"
1611
objformat="elf"
1612
pkg_config_default=pkg-config
1613
ranlib="ranlib"
1614
yasmexe="yasm"
1615
nogas=":"
1616

    
1617
nm_opts='-g'
1618

    
1619
# machine
1620
arch_default=$(uname -m)
1621
cpu="generic"
1622

    
1623
# OS
1624
target_os_default=$(tolower $(uname -s))
1625
host_os=$target_os_default
1626

    
1627
# configurable options
1628
enable avcodec
1629
enable avdevice
1630
enable avfilter
1631
enable avformat
1632
enable avutil
1633
enable asm
1634
enable debug
1635
enable doc
1636
enable fastdiv
1637
enable ffmpeg
1638
enable ffplay
1639
enable ffprobe
1640
enable ffserver
1641
enable mpegaudio_hp
1642
enable network
1643
enable optimizations
1644
enable protocols
1645
enable static
1646
enable swscale
1647
enable swscale_alpha
1648

    
1649
# build settings
1650
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1651
FFSERVERLDFLAGS=-Wl,-E
1652
LIBPREF="lib"
1653
LIBSUF=".a"
1654
FULLNAME='$(NAME)$(BUILDSUF)'
1655
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1656
SLIBPREF="lib"
1657
SLIBSUF=".so"
1658
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1659
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1660
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1661
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1662

    
1663
CC_O='-o $@'
1664

    
1665
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1666
host_libs='-lm'
1667

    
1668
target_path='$(CURDIR)'
1669

    
1670
# since the object filename is not given with the -MM flag, the compiler
1671
# is only able to print the basename, and we must add the path ourselves
1672
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1673
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1674

    
1675
# find source path
1676
source_path="$(dirname "$0")"
1677
enable source_path_used
1678
if test -f configure; then
1679
    source_path="$(pwd)"
1680
    disable source_path_used
1681
else
1682
    source_path="$(cd "$source_path"; pwd)"
1683
    echo "$source_path" | grep -q '[[:blank:]]' &&
1684
        die "Out of tree builds are impossible with whitespace in source path."
1685
    test -e "$source_path/config.h" &&
1686
        die "Out of tree builds are impossible with config.h in source dir."
1687
fi
1688

    
1689
for v in "$@"; do
1690
    r=${v#*=}
1691
    l=${v%"$r"}
1692
    r=$(sh_quote "$r")
1693
    LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1694
done
1695

    
1696
find_things(){
1697
    thing=$1
1698
    pattern=$2
1699
    file=$source_path/$3
1700
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1701
}
1702

    
1703
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1704
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1705
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1706
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1707
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1708
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1709
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1710
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1711
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1712
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1713
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1714

    
1715
find_tests(){
1716
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1717
}
1718

    
1719
ACODEC_TESTS=$(find_tests acodec)
1720
VCODEC_TESTS=$(find_tests vsynth1)
1721
LAVF_TESTS=$(find_tests lavf)
1722
LAVFI_TESTS=$(find_tests lavfi)
1723
SEEK_TESTS=$(find_tests seek seek_)
1724

    
1725
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1726

    
1727
for n in $COMPONENT_LIST; do
1728
    v=$(toupper ${n%s})_LIST
1729
    eval enable \$$v
1730
    eval ${n}_if_any="\$$v"
1731
done
1732

    
1733
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1734

    
1735
die_unknown(){
1736
    echo "Unknown option \"$1\"."
1737
    echo "See $0 --help for available options."
1738
    exit 1
1739
}
1740

    
1741
show_list() {
1742
    suffix=_$1
1743
    shift
1744
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1745
    exit 0
1746
}
1747

    
1748
for opt do
1749
    optval="${opt#*=}"
1750
    case "$opt" in
1751
    --extra-ldflags=*) add_ldflags $optval
1752
    ;;
1753
    --extra-libs=*) add_extralibs $optval
1754
    ;;
1755
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1756
    ;;
1757
    --enable-debug=*) debuglevel="$optval"
1758
    ;;
1759
    --disable-everything)
1760
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1761
    ;;
1762
    --enable-*=*|--disable-*=*)
1763
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1764
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1765
    eval list=\$$(toupper $thing)_LIST
1766
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1767
    $action $(filter "$name" $list)
1768
    ;;
1769
    --enable-?*|--disable-?*)
1770
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1771
    if is_in $option $COMPONENT_LIST; then
1772
        test $action = disable && action=unset
1773
        eval $action \$$(toupper ${option%s})_LIST
1774
    elif is_in $option $CMDLINE_SELECT; then
1775
        $action $option
1776
    else
1777
        die_unknown $opt
1778
    fi
1779
    ;;
1780
    --list-*)
1781
        NAME="${opt#--list-}"
1782
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1783
        NAME=${NAME%s}
1784
        eval show_list $NAME \$$(toupper $NAME)_LIST
1785
    ;;
1786
    --help|-h) show_help
1787
    ;;
1788
    *)
1789
    optname="${opt%%=*}"
1790
    optname="${optname#--}"
1791
    optname=$(echo "$optname" | sed 's/-/_/g')
1792
    if is_in $optname $CMDLINE_SET; then
1793
        eval $optname='$optval'
1794
    elif is_in $optname $CMDLINE_APPEND; then
1795
        append $optname "$optval"
1796
    else
1797
         die_unknown $opt
1798
    fi
1799
    ;;
1800
    esac
1801
done
1802

    
1803
disabled logging && logfile=/dev/null
1804

    
1805
echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1806
set >> $logfile
1807

    
1808
test -n "$cross_prefix" && enable cross_compile
1809

    
1810
if enabled cross_compile; then
1811
    test -n "$arch" && test -n "$target_os" ||
1812
        die "Must specify target arch and OS when cross-compiling"
1813
fi
1814

    
1815
set_default arch target_os
1816

    
1817
ar_default="${cross_prefix}${ar_default}"
1818
cc_default="${cross_prefix}${cc_default}"
1819
nm_default="${cross_prefix}${nm_default}"
1820
pkg_config_default="${cross_prefix}${pkg_config_default}"
1821
ranlib="${cross_prefix}${ranlib}"
1822

    
1823
sysinclude_default="${sysroot}/usr/include"
1824

    
1825
set_default cc nm pkg_config sysinclude
1826
enabled cross_compile || host_cc_default=$cc
1827
set_default host_cc
1828

    
1829
exesuf() {
1830
    case $1 in
1831
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1832
    esac
1833
}
1834

    
1835
EXESUF=$(exesuf $target_os)
1836
HOSTEXESUF=$(exesuf $host_os)
1837

    
1838
# set temporary file name
1839
: ${TMPDIR:=$TEMPDIR}
1840
: ${TMPDIR:=$TMP}
1841
: ${TMPDIR:=/tmp}
1842

    
1843
if ! check_cmd mktemp -u XXXXXX; then
1844
    # simple replacement for missing mktemp
1845
    # NOT SAFE FOR GENERAL USE
1846
    mktemp(){
1847
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1848
    }
1849
fi
1850

    
1851
tmpfile(){
1852
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1853
        (set -C; exec > $tmp) 2>/dev/null ||
1854
        die "Unable to create temporary file in $TMPDIR."
1855
    append TMPFILES $tmp
1856
    eval $1=$tmp
1857
}
1858

    
1859
trap 'rm -f -- $TMPFILES' EXIT
1860

    
1861
tmpfile TMPC  .c
1862
tmpfile TMPE  $EXESUF
1863
tmpfile TMPH  .h
1864
tmpfile TMPO  .o
1865
tmpfile TMPS  .S
1866
tmpfile TMPV  .ver
1867
tmpfile TMPSH .sh
1868
tmpfile TMPASM .asm
1869

    
1870
unset -f mktemp
1871

    
1872
chmod +x $TMPE
1873

    
1874
# make sure we can execute files in $TMPDIR
1875
cat > $TMPSH 2>> $logfile <<EOF
1876
#! /bin/sh
1877
EOF
1878
chmod +x $TMPSH >> $logfile 2>&1
1879
if ! $TMPSH >> $logfile 2>&1; then
1880
    cat <<EOF
1881
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1882
variable to another directory and make sure that it is not mounted noexec.
1883
EOF
1884
    die "Sanity test failed."
1885
fi
1886

    
1887
filter_cflags=echo
1888
filter_cppflags=echo
1889
filter_asflags=echo
1890

    
1891
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1892
    cc_type=llvm_gcc
1893
    cc_version=__VERSION__
1894
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1895
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1896
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1897
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1898
    speed_cflags='-O3'
1899
    size_cflags='-Os'
1900
elif $cc -v 2>&1 | grep -qi ^gcc; then
1901
    cc_type=gcc
1902
    cc_version=__VERSION__
1903
    gcc_version=$($cc --version | head -n1)
1904
    gcc_basever=$($cc -dumpversion)
1905
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1906
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1907
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1908
    if ! $cc -dumpversion | grep -q '^2\.'; then
1909
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1910
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911
    fi
1912
    speed_cflags='-O3'
1913
    size_cflags='-Os'
1914
elif $cc --version 2>/dev/null | grep -q Intel; then
1915
    cc_type=icc
1916
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1917
    cc_ident=$($cc --version | head -n1)
1918
    icc_version=$($cc -dumpversion)
1919
    CC_DEPFLAGS='-MMD'
1920
    AS_DEPFLAGS='-MMD'
1921
    speed_cflags='-O3'
1922
    size_cflags='-Os'
1923
    noopt_cflags='-O1'
1924
elif $cc -v 2>&1 | grep -q xlc; then
1925
    cc_type=xlc
1926
    cc_version="AV_STRINGIFY(__IBMC__)"
1927
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1928
    speed_cflags='-O5'
1929
    size_cflags='-O5 -qcompact'
1930
elif $cc -V 2>/dev/null | grep -q Compaq; then
1931
    cc_type=ccc
1932
    cc_version="AV_STRINGIFY(__DECC_VER)"
1933
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1934
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1935
    debuglevel=3
1936
    add_ldflags -Wl,-z,now # calls to libots crash without this
1937
    speed_cflags='-fast'
1938
    size_cflags='-O1'
1939
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1940
    test -d "$sysroot" || die "No valid sysroot specified."
1941
    cc_type=armcc
1942
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1943
    cc_ident=$($cc --vsn | head -n1)
1944
    armcc_conf="$PWD/armcc.conf"
1945
    $cc --arm_linux_configure                 \
1946
        --arm_linux_config_file="$armcc_conf" \
1947
        --configure_sysroot="$sysroot"        \
1948
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1949
        die "Error creating armcc configuration file."
1950
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1951
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1952
    as_default="${cross_prefix}gcc"
1953
    CC_DEPFLAGS='-MMD'
1954
    AS_DEPFLAGS='-MMD'
1955
    speed_cflags='-O3'
1956
    size_cflags='-Os'
1957
    filter_asflags="filter_out -W${armcc_opt}*"
1958
elif $cc -version 2>/dev/null | grep -q TMS470; then
1959
    cc_type=tms470
1960
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1961
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1962
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1963
    CC_O='-fr=$(@D)'
1964
    as_default="${cross_prefix}gcc"
1965
    ld_default="${cross_prefix}gcc"
1966
    TMPO=$(basename $TMPC .c).o
1967
    append TMPFILES $TMPO
1968
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1969
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1970
    AS_DEPFLAGS='-MMD'
1971
    speed_cflags='-O3 -mf=5'
1972
    size_cflags='-O3 -mf=2'
1973
    filter_cflags=tms470_flags
1974
    tms470_flags(){
1975
        for flag; do
1976
            case $flag in
1977
                -march=*|-mcpu=*)
1978
                    case "${flag#*=}" in
1979
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1980
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1981
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1982
                        armv6*|arm11*)          echo -mv=6   ;;
1983
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1984
                                                echo -mv=5e  ;;
1985
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1986
                    esac
1987
                    ;;
1988
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1989
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
1990
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1991
                -msoft-float)   echo --float_support=vfplib       ;;
1992
                -O[0-3]|-mf=*)  echo $flag                        ;;
1993
                -g)             echo -g -mn                       ;;
1994
                -pds=*)         echo $flag                        ;;
1995
            esac
1996
        done
1997
    }
1998
elif $cc -v 2>&1 | grep -q clang; then
1999
    cc_type=clang
2000
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2001
        cc_version=__clang_version__ || cc_version=__VERSION__
2002
    cc_ident=$($cc --version | head -n1)
2003
    CC_DEPFLAGS='-MMD'
2004
    AS_DEPFLAGS='-MMD'
2005
    speed_cflags='-O3'
2006
    size_cflags='-Os'
2007
elif $cc -V 2>&1 | grep -q Sun; then
2008
    cc_type=suncc
2009
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2010
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2011
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2012
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2013
    speed_cflags='-O5'
2014
    size_cflags='-O5 -xspace'
2015
    filter_cflags=suncc_flags
2016
    suncc_flags(){
2017
        for flag; do
2018
            case $flag in
2019
                -march=*|-mcpu=*)
2020
                    case "${flag#*=}" in
2021
                        native)                   echo -xtarget=native       ;;
2022
                        v9|niagara)               echo -xarch=sparc          ;;
2023
                        ultrasparc)               echo -xarch=sparcvis       ;;
2024
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2025
                        i586|pentium)             echo -xchip=pentium        ;;
2026
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2027
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2028
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2029
                        pentium4*)          echo -xtarget=pentium4           ;;
2030
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2031
                        *-sse3)             echo -xarch=sse3                 ;;
2032
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2033
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2034
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2035
                        k8|opteron|athlon64|athlon-fx)
2036
                                                  echo -xarch=sse2a          ;;
2037
                        athlon*)                  echo -xarch=pentium_proa   ;;
2038
                    esac
2039
                    ;;
2040
                -std=c99)             echo -xc99              ;;
2041
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2042
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2043
                -W*,*)                echo $flag              ;;
2044
                -f*-*|-W*)                                    ;;
2045
                *)                    echo $flag              ;;
2046
            esac
2047
        done
2048
    }
2049
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2050
    cc_type=pathscale
2051
    cc_version=__PATHSCALE__
2052
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2053
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2054
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2055
    speed_cflags='-O2'
2056
    size_cflags='-Os'
2057
elif $cc -v 2>&1 | grep -q Open64; then
2058
    cc_type=open64
2059
    cc_version=__OPEN64__
2060
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2061
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2062
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2063
    speed_cflags='-O2'
2064
    size_cflags='-Os'
2065
fi
2066

    
2067
test -n "$cc_type" && enable $cc_type ||
2068
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2069

    
2070
: ${as_default:=$cc}
2071
: ${dep_cc_default:=$cc}
2072
: ${ld_default:=$cc}
2073
set_default ar as dep_cc ld
2074

    
2075
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2076
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2077

    
2078
add_cflags $extra_cflags
2079
add_asflags $extra_cflags
2080

    
2081
if test -n "$sysroot"; then
2082
    case "$cc_type" in
2083
        gcc|llvm_gcc|clang)
2084
            add_cppflags --sysroot="$sysroot"
2085
            add_ldflags --sysroot="$sysroot"
2086
        ;;
2087
        tms470)
2088
            add_cppflags -I"$sysinclude"
2089
            add_ldflags  --sysroot="$sysroot"
2090
        ;;
2091
    esac
2092
fi
2093

    
2094
if test "$cpu" = host; then
2095
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2096

    
2097
    case "$cc_type" in
2098
        gcc|llvm_gcc)
2099
            check_native(){
2100
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2101
                sed -n "/$1=/{
2102
                            s/.*$1=\\([^ ]*\\).*/\\1/
2103
                            p
2104
                            q
2105
                        }" $TMPE
2106
            }
2107
            cpu=$(check_native -march || check_native -mcpu)
2108
        ;;
2109
    esac
2110

    
2111
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2112
fi
2113

    
2114
# Deal with common $arch aliases
2115
case "$arch" in
2116
    arm*)
2117
        arch="arm"
2118
    ;;
2119
    mips|mipsel|IP*)
2120
        arch="mips"
2121
    ;;
2122
    mips64*)
2123
        arch="mips"
2124
        subarch="mips64"
2125
    ;;
2126
    parisc|hppa)
2127
        arch="parisc"
2128
    ;;
2129
    parisc64|hppa64)
2130
        arch="parisc"
2131
        subarch="parisc64"
2132
    ;;
2133
    "Power Macintosh"|ppc|powerpc)
2134
        arch="ppc"
2135
    ;;
2136
    ppc64|powerpc64)
2137
        arch="ppc"
2138
        subarch="ppc64"
2139
    ;;
2140
    s390|s390x)
2141
        arch="s390"
2142
    ;;
2143
    sh4|sh)
2144
        arch="sh4"
2145
    ;;
2146
    sun4u|sparc64)
2147
        arch="sparc"
2148
        subarch="sparc64"
2149
    ;;
2150
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2151
        arch="x86"
2152
    ;;
2153
esac
2154

    
2155
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2156
enable $arch
2157

    
2158
# Add processor-specific flags
2159
if test "$cpu" = generic; then
2160
    : do nothing
2161
elif enabled ppc; then
2162

    
2163
    case $(tolower $cpu) in
2164
        601|ppc601|powerpc601)
2165
            cpuflags="-mcpu=601"
2166
            disable altivec
2167
        ;;
2168
        603*|ppc603*|powerpc603*)
2169
            cpuflags="-mcpu=603"
2170
            disable altivec
2171
        ;;
2172
        604*|ppc604*|powerpc604*)
2173
            cpuflags="-mcpu=604"
2174
            disable altivec
2175
        ;;
2176
        g3|75*|ppc75*|powerpc75*)
2177
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2178
            disable altivec
2179
        ;;
2180
        g4|745*|ppc745*|powerpc745*)
2181
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2182
        ;;
2183
        74*|ppc74*|powerpc74*)
2184
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2185
        ;;
2186
        g5|970|ppc970|powerpc970|power4*)
2187
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2188
        ;;
2189
        cell)
2190
            cpuflags="-mcpu=cell"
2191
            enable ldbrx
2192
        ;;
2193
        e500v2)
2194
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2195
            disable altivec
2196
        ;;
2197
        e500)
2198
            cpuflags="-mcpu=8540 -mhard-float"
2199
            disable altivec
2200
        ;;
2201
    esac
2202

    
2203
elif enabled x86; then
2204

    
2205
    case $cpu in
2206
        i[345]86|pentium)
2207
            cpuflags="-march=$cpu"
2208
            disable mmx
2209
        ;;
2210
        # targets that do NOT support conditional mov (cmov)
2211
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2212
            cpuflags="-march=$cpu"
2213
            disable cmov
2214
        ;;
2215
        # targets that do support conditional mov (cmov)
2216
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2217
            cpuflags="-march=$cpu"
2218
            enable cmov
2219
            enable fast_cmov
2220
        ;;
2221
        # targets that do support conditional mov but on which it's slow
2222
        pentium4|pentium4m|prescott|nocona)
2223
            cpuflags="-march=$cpu"
2224
            enable cmov
2225
            disable fast_cmov
2226
        ;;
2227
    esac
2228

    
2229
elif enabled sparc; then
2230

    
2231
    case $cpu in
2232
        niagara)
2233
            cpuflags="-mcpu=$cpu"
2234
            disable vis
2235
        ;;
2236
        sparc64)
2237
            cpuflags="-mcpu=v9"
2238
        ;;
2239
    esac
2240

    
2241
elif enabled arm; then
2242

    
2243
    case $cpu in
2244
        armv*)
2245
            cpuflags="-march=$cpu"
2246
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2247
        ;;
2248
        *)
2249
            cpuflags="-mcpu=$cpu"
2250
            case $cpu in
2251
                cortex-a*)                               subarch=armv7a  ;;
2252
                cortex-r*)                               subarch=armv7r  ;;
2253
                cortex-m*)                               subarch=armv7m  ;;
2254
                arm11*)                                  subarch=armv6   ;;
2255
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2256
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2257
            esac
2258
        ;;
2259
    esac
2260

    
2261
elif enabled alpha; then
2262

    
2263
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2264

    
2265
elif enabled bfin; then
2266

    
2267
    cpuflags="-mcpu=$cpu"
2268

    
2269
elif enabled mips; then
2270

    
2271
    cpuflags="-march=$cpu"
2272

    
2273
elif enabled avr32; then
2274

    
2275
    case $cpu in
2276
        ap7[02]0[0-2])
2277
            subarch="avr32_ap"
2278
            cpuflags="-mpart=$cpu"
2279
        ;;
2280
        ap)
2281
            subarch="avr32_ap"
2282
            cpuflags="-march=$cpu"
2283
        ;;
2284
        uc3[ab]*)
2285
            subarch="avr32_uc"
2286
            cpuflags="-mcpu=$cpu"
2287
        ;;
2288
        uc)
2289
            subarch="avr32_uc"
2290
            cpuflags="-march=$cpu"
2291
        ;;
2292
    esac
2293

    
2294
fi
2295

    
2296
add_cflags $cpuflags
2297
add_asflags $cpuflags
2298

    
2299
# compiler sanity check
2300
check_exec <<EOF
2301
int main(void){ return 0; }
2302
EOF
2303
if test "$?" != 0; then
2304
    echo "$cc is unable to create an executable file."
2305
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2306
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2307
        echo "Only do this if you know what cross compiling means."
2308
    fi
2309
    die "C compiler test failed."
2310
fi
2311

    
2312
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2313
check_cflags -std=c99
2314
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2315
#include <stdlib.h>
2316
EOF
2317
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2318
#include <stdlib.h>
2319
EOF
2320

    
2321
check_host_cflags -std=c99
2322

    
2323
case "$arch" in
2324
    alpha|ia64|mips|parisc|sparc)
2325
        spic=$shared
2326
    ;;
2327
    x86)
2328
        subarch="x86_32"
2329
        check_cc <<EOF && subarch="x86_64"
2330
        int test[(int)sizeof(char*) - 7];
2331
EOF
2332
        if test "$subarch" = "x86_64"; then
2333
            spic=$shared
2334
        fi
2335
    ;;
2336
esac
2337

    
2338
enable $subarch
2339
enabled spic && enable pic
2340

    
2341
# OS specific
2342
case $target_os in
2343
    haiku)
2344
        prefix_default="/boot/common"
2345
        network_extralibs="-lnetwork"
2346
        host_libs=
2347
        ;;
2348
    sunos)
2349
        FFSERVERLDFLAGS=""
2350
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2351
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2352
        network_extralibs="-lsocket -lnsl"
2353
        add_cppflags -D__EXTENSIONS__
2354
        nm_opts='-P -g'
2355
        ;;
2356
    netbsd)
2357
        disable symver
2358
        oss_indev_extralibs="-lossaudio"
2359
        oss_outdev_extralibs="-lossaudio"
2360
        add_cppflags -D_XOPEN_SOURCE=600
2361
        ;;
2362
    openbsd)
2363
        enable malloc_aligned
2364
        # On OpenBSD 4.5. the compiler does not use PIC unless
2365
        # explicitly using -fPIC. Libav builds fine without PIC,
2366
        # however the generated executable will not do anything
2367
        # (simply quits with exit-code 1, no crash, no output).
2368
        # Thus explicitly enable PIC here.
2369
        enable pic
2370
        disable symver
2371
        SHFLAGS='-shared'
2372
        oss_indev_extralibs="-lossaudio"
2373
        oss_outdev_extralibs="-lossaudio"
2374
        ;;
2375
    dragonfly)
2376
        enable malloc_aligned
2377
        disable symver
2378
        ;;
2379
    freebsd)
2380
        enable malloc_aligned
2381
        ;;
2382
    bsd/os)
2383
        add_extralibs -lpoll -lgnugetopt
2384
        ;;
2385
    darwin)
2386
        enable malloc_aligned
2387
        gas="gas-preprocessor.pl $cc"
2388
        enabled ppc && add_asflags -force_cpusubtype_ALL
2389
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2390
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2391
        add_ldflags -Wl,-dynamic,-search_paths_first
2392
        SLIBSUF=".dylib"
2393
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2394
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2395
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2396
        objformat="macho"
2397
        enabled x86_64 && objformat="macho64"
2398
        enabled_any pic shared ||
2399
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2400
        ;;
2401
    mingw32*)
2402
        if test $target_os = "mingw32ce"; then
2403
            disable network
2404
        else
2405
            target_os=mingw32
2406
        fi
2407
        LIBTARGET=i386
2408
        if enabled x86_64; then
2409
            enable malloc_aligned
2410
            LIBTARGET="i386:x86-64"
2411
        elif enabled arm; then
2412
            LIBTARGET=arm-wince
2413
        fi
2414
        shlibdir_default="$bindir_default"
2415
        SLIBPREF=""
2416
        SLIBSUF=".dll"
2417
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2418
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2419
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2420
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2421
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2422
            install -d "$(LIBDIR)"; \
2423
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2424
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2425
        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'
2426
        objformat="win32"
2427
        dlltool="${cross_prefix}dlltool"
2428
        enable dos_paths
2429
        check_cflags -fno-common
2430
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2431
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2432
                die "ERROR: MinGW runtime version must be >= 3.15."
2433
        add_cppflags -U__STRICT_ANSI__
2434
        ;;
2435
    cygwin*)
2436
        target_os=cygwin
2437
        shlibdir_default="$bindir_default"
2438
        SLIBPREF="cyg"
2439
        SLIBSUF=".dll"
2440
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2441
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2442
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2443
        objformat="win32"
2444
        enable dos_paths
2445
        check_cflags -fno-common
2446
        ;;
2447
    *-dos|freedos|opendos)
2448
        network_extralibs="-lsocket"
2449
        objformat="coff"
2450
        enable dos_paths
2451
        ;;
2452
    linux)
2453
        enable dv1394
2454
        ;;
2455
    irix*)
2456
        target_os=irix
2457
        ranlib="echo ignoring ranlib"
2458
        ;;
2459
    os/2*)
2460
        ln_s="cp -f"
2461
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2462
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2463
        FFSERVERLDFLAGS=""
2464
        LIBSUF="_s.a"
2465
        SLIBPREF=""
2466
        SLIBSUF=".dll"
2467
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2468
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2469
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2470
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2471
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2472
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2473
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2474
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2475
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2476
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2477
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2478
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2479
        enable dos_paths
2480
        ;;
2481
    gnu/kfreebsd)
2482
        ;;
2483
    gnu)
2484
        ;;
2485
    qnx)
2486
        add_cppflags -D_QNX_SOURCE
2487
        network_extralibs="-lsocket"
2488
        ;;
2489
    symbian)
2490
        SLIBSUF=".dll"
2491
        enable dos_paths
2492
        add_cflags --include=$sysinclude/gcce/gcce.h
2493
        ;;
2494
    none)
2495
        ;;
2496
    *)
2497
        die "Unknown OS '$target_os'."
2498
        ;;
2499
esac
2500

    
2501
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2502

    
2503
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2504

    
2505
set_default $PATHS_LIST
2506

    
2507
# we need to build at least one lib type
2508
if ! enabled_any static shared; then
2509
    cat <<EOF
2510
At least one library type must be built.
2511
Specify --enable-static to build the static libraries or --enable-shared to
2512
build the shared libraries as well. To only build the shared libraries specify
2513
--disable-static in addition to --enable-shared.
2514
EOF
2515
    exit 1;
2516
fi
2517

    
2518
disabled static && LIBNAME=""
2519

    
2520
die_license_disabled() {
2521
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2522
}
2523

    
2524
die_license_disabled gpl libx264
2525
die_license_disabled gpl libxavs
2526
die_license_disabled gpl libxvid
2527
die_license_disabled gpl postproc
2528
die_license_disabled gpl x11grab
2529

    
2530
die_license_disabled nonfree libfaac
2531

    
2532
die_license_disabled version3 libopencore_amrnb
2533
die_license_disabled version3 libopencore_amrwb
2534
die_license_disabled version3 libvo_aacenc
2535
die_license_disabled version3 libvo_amrwbenc
2536

    
2537
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2538

    
2539
disabled optimizations || check_cflags -fomit-frame-pointer
2540

    
2541
enable_pic() {
2542
    enable pic
2543
    add_cppflags -DPIC
2544
    add_cflags   -fPIC
2545
    add_asflags  -fPIC
2546
}
2547

    
2548
enabled pic && enable_pic
2549

    
2550
check_cc <<EOF || die "Symbol mangling check failed."
2551
int ff_extern;
2552
EOF
2553
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2554
extern_prefix=${sym%%ff_extern*}
2555

    
2556
check_cc <<EOF && enable inline_asm
2557
void foo(void) { __asm__ volatile ("" ::); }
2558
EOF
2559

    
2560
_restrict=
2561
for restrict_keyword in restrict __restrict__ __restrict; do
2562
    check_cc <<EOF && _restrict=$restrict_keyword && break
2563
void foo(char * $restrict_keyword p);
2564
EOF
2565
done
2566

    
2567
check_cc <<EOF && enable attribute_packed
2568
struct { int x; } __attribute__((packed)) x;
2569
EOF
2570

    
2571
check_cc <<EOF && enable attribute_may_alias
2572
union { int x; } __attribute__((may_alias)) x;
2573
EOF
2574

    
2575
check_cc <<EOF || die "endian test failed"
2576
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2577
EOF
2578
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2579

    
2580
if enabled alpha; then
2581

    
2582
    check_cflags -mieee
2583

    
2584
elif enabled arm; then
2585

    
2586
    check_cflags -marm
2587
    nogas=die
2588

    
2589
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2590
        enable vfp_args
2591
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2592
        case "${cross_prefix:-$cc}" in
2593
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2594
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2595
__asm__ (".eabi_attribute 28, 1");
2596
int main(void) { return 0; }
2597
EOF
2598
        esac
2599
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2600
    fi
2601

    
2602
    # We have to check if pld is a nop and disable it.
2603
    check_asm pld '"pld [r0]"'
2604

    
2605
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2606
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2607
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2608
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2609
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2610
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2611

    
2612
    enabled_all armv6t2 shared !pic && enable_pic
2613

    
2614
elif enabled mips; then
2615

    
2616
    check_asm loongson '"dmult.g $1, $2, $3"'
2617
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2618

    
2619
elif enabled ppc; then
2620

    
2621
    enable local_aligned_8 local_aligned_16
2622

    
2623
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2624
    check_asm ibm_asm   '"add 0, 0, 0"'
2625
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2626
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2627

    
2628
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2629
    if enabled altivec; then
2630
        nogas=warn
2631
        check_cflags -maltivec -mabi=altivec &&
2632
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2633
        check_cflags -faltivec
2634

    
2635
        # check if our compiler supports Motorola AltiVec C API
2636
        check_cc <<EOF || disable altivec
2637
$inc_altivec_h
2638
int main(void) {
2639
    vector signed int v1, v2, v3;
2640
    v1 = vec_add(v2,v3);
2641
    return 0;
2642
}
2643
EOF
2644

    
2645
        # check if our compiler supports braces for vector declarations
2646
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2647
$inc_altivec_h
2648
int main (void) { (vector int) {1}; return 0; }
2649
EOF
2650
    fi
2651

    
2652
elif enabled sparc; then
2653

    
2654
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2655
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2656

    
2657
elif enabled x86; then
2658

    
2659
    enable local_aligned_8 local_aligned_16
2660

    
2661
    # check whether EBP is available on x86
2662
    # As 'i' is stored on the stack, this program will crash
2663
    # if the base pointer is used to access it because the
2664
    # base pointer is cleared in the inline assembly code.
2665
    check_exec_crash <<EOF && enable ebp_available
2666
    volatile int i=0;
2667
    __asm__ volatile (
2668
        "xorl %%ebp, %%ebp"
2669
    ::: "%ebp");
2670
    return i;
2671
EOF
2672

    
2673
    # check whether EBX is available on x86
2674
    check_asm ebx_available '""::"b"(0)' &&
2675
        check_asm ebx_available '"":::"%ebx"'
2676

    
2677
    # check whether xmm clobbers are supported
2678
    check_asm xmm_clobbers '"":::"%xmm0"'
2679

    
2680
    # check whether more than 10 operands are supported
2681
    check_cc <<EOF && enable ten_operands
2682
int main(void) {
2683
    int x=0;
2684
    __asm__ volatile(
2685
        ""
2686
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2687
    );
2688
    return 0;
2689
}
2690
EOF
2691

    
2692
    # check whether binutils is new enough to compile SSSE3/MMX2
2693
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2694
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2695

    
2696
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2697

    
2698
    if ! disabled_any asm mmx yasm; then
2699
        if check_cmd $yasmexe --version; then
2700
            enabled x86_64 && yasm_extra="-m amd64"
2701
            yasm_debug="-g dwarf2"
2702
        elif check_cmd nasm -v; then
2703
            yasmexe=nasm
2704
            yasm_debug="-g -F dwarf"
2705
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2706
        fi
2707

    
2708
        YASMFLAGS="-f $objformat $yasm_extra"
2709
        enabled pic               && append YASMFLAGS "-DPIC"
2710
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2711
        case "$objformat" in
2712
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2713
        esac
2714

    
2715
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2716
            die "yasm not found, use --disable-yasm for a crippled build"
2717
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2718
    fi
2719

    
2720
    case "$cpu" in
2721
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2722
            disable fast_clz
2723
        ;;
2724
    esac
2725

    
2726
fi
2727

    
2728
if enabled asm; then
2729
    as=${gas:=$as}
2730
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2731
        $nogas "GNU assembler not found, install gas-preprocessor"
2732
fi
2733

    
2734
check_ldflags -Wl,--as-needed
2735

    
2736
if check_func dlopen; then
2737
    ldl=
2738
elif check_func dlopen -ldl; then
2739
    ldl=-ldl
2740
fi
2741

    
2742
if enabled network; then
2743
    check_type "sys/types.h sys/socket.h" socklen_t
2744
    check_type netdb.h "struct addrinfo"
2745
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2746
    check_type netinet/in.h "struct sockaddr_in6"
2747
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2748
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2749
    # Prefer arpa/inet.h over winsock2
2750
    if check_header arpa/inet.h ; then
2751
        check_func closesocket
2752
    elif check_header winsock2.h ; then
2753
        check_func_headers winsock2.h closesocket -lws2 && \
2754
            network_extralibs="-lws2" || \
2755
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2756
            network_extralibs="-lws2_32"; }
2757
        check_type ws2tcpip.h socklen_t
2758
        check_type ws2tcpip.h "struct addrinfo"
2759
        check_type ws2tcpip.h "struct ipv6_mreq"
2760
        check_type ws2tcpip.h "struct sockaddr_in6"
2761
        check_type ws2tcpip.h "struct sockaddr_storage"
2762
        check_struct winsock2.h "struct sockaddr" sa_len
2763
    else
2764
        disable network
2765
    fi
2766
fi
2767

    
2768
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2769
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2770

    
2771
check_func  fcntl
2772
check_func  fork
2773
check_func  getaddrinfo $network_extralibs
2774
check_func  gethrtime
2775
check_func  getrusage
2776
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2777
check_func  inet_aton $network_extralibs
2778
check_func  isatty
2779
check_func  ${malloc_prefix}memalign            && enable memalign
2780
check_func  mkstemp
2781
check_func  mmap
2782
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2783
check_func  setrlimit
2784
check_func  strerror_r
2785
check_func  strtok_r
2786
check_func_headers conio.h kbhit
2787
check_func_headers io.h setmode
2788
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2789
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2790
check_func_headers windows.h GetProcessTimes
2791
check_func_headers windows.h MapViewOfFile
2792
check_func_headers windows.h VirtualAlloc
2793

    
2794
check_header dlfcn.h
2795
check_header dxva2api.h
2796
check_header malloc.h
2797
check_header poll.h
2798
check_header sys/mman.h
2799
check_header sys/resource.h
2800
check_header sys/select.h
2801
check_header vdpau/vdpau.h
2802
check_header vdpau/vdpau_x11.h
2803
check_header X11/extensions/XvMClib.h
2804

    
2805
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2806

    
2807
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2808
     enabled_any $need_memalign ; then
2809
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2810
fi
2811

    
2812
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2813
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2814

    
2815
# check for some common methods of building with pthread support
2816
# do this before the optional library checks as some of them require pthreads
2817
if ! disabled pthreads && ! enabled w32threads; then
2818
    enable pthreads
2819
    if check_func pthread_create; then
2820
        :
2821
    elif check_func pthread_create -pthread; then
2822
        add_cflags -pthread
2823
        add_extralibs -pthread
2824
    elif check_func pthread_create -pthreads; then
2825
        add_cflags -pthreads
2826
        add_extralibs -pthreads
2827
    elif check_func pthread_create -lpthreadGC2; then
2828
        add_extralibs -lpthreadGC2
2829
    elif ! check_lib pthread.h pthread_create -lpthread; then
2830
        disable pthreads
2831
    fi
2832
fi
2833

    
2834
for thread in $THREADS_LIST; do
2835
    if enabled $thread; then
2836
        test -n "$thread_type" &&
2837
            die "ERROR: Only one thread type must be selected." ||
2838
            thread_type="$thread"
2839
    fi
2840
done
2841

    
2842
check_lib math.h sin -lm
2843
disabled vaapi || check_lib va/va.h vaInitialize -lva
2844

    
2845
check_mathfunc exp2
2846
check_mathfunc exp2f
2847
check_mathfunc llrint
2848
check_mathfunc llrintf
2849
check_mathfunc log2
2850
check_mathfunc log2f
2851
check_mathfunc lrint
2852
check_mathfunc lrintf
2853
check_mathfunc round
2854
check_mathfunc roundf
2855
check_mathfunc truncf
2856

    
2857
# these are off by default, so fail if requested and not available
2858
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2859
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2860
enabled libdirac   && require_pkg_config dirac                          \
2861
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2862
    "dirac_decoder_init dirac_encoder_init"
2863
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2864
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2865
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2866
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2867
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2868
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2869
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2870
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2871
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2872
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2873
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2874
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2875
enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2876
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2877
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2878
enabled libvpx     && {
2879
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2880
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2881
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2882
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2883
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2884
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2885
                        die "ERROR: libx264 version must be >= 0.99."; }
2886
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2887
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2888
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2889

    
2890
# libdc1394 check
2891
if enabled libdc1394; then
2892
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2893
        enable libdc1394_2; } ||
2894
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2895
        enable libdc1394_1; } ||
2896
    die "ERROR: No version of libdc1394 found "
2897
fi
2898

    
2899
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2900
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2901
    enable sdl &&
2902
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2903
fi
2904

    
2905
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2906

    
2907
check_header linux/fb.h
2908
check_header linux/videodev.h
2909
check_header linux/videodev2.h
2910
check_header sys/videoio.h
2911

    
2912
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2913
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2914
# w32api 3.12 had it defined wrong
2915
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2916

    
2917
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2918
{ check_header dev/bktr/ioctl_meteor.h &&
2919
  check_header dev/bktr/ioctl_bt848.h; } ||
2920
{ check_header machine/ioctl_meteor.h &&
2921
  check_header machine/ioctl_bt848.h; } ||
2922
{ check_header dev/video/meteor/ioctl_meteor.h &&
2923
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2924
check_header dev/ic/bt8xx.h
2925

    
2926
check_header sndio.h
2927
check_header sys/soundcard.h
2928
check_header soundcard.h
2929

    
2930
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2931

    
2932
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2933

    
2934
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2935

    
2936
enabled x11grab                         &&
2937
check_header X11/Xlib.h                 &&
2938
check_header X11/extensions/XShm.h      &&
2939
check_header X11/extensions/Xfixes.h    &&
2940
check_func XOpenDisplay -lX11           &&
2941
check_func XShmCreateImage -lX11 -lXext &&
2942
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2943

    
2944
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2945
check_cpp_condition \
2946
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2947
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2948
      disable vdpau; }
2949
fi
2950

    
2951
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2952

    
2953
# add some useful compiler flags if supported
2954
check_cflags -Wdeclaration-after-statement
2955
check_cflags -Wall
2956
check_cflags -Wno-parentheses
2957
check_cflags -Wno-switch
2958
check_cflags -Wdisabled-optimization
2959
check_cflags -Wpointer-arith
2960
check_cflags -Wredundant-decls
2961
check_cflags -Wno-pointer-sign
2962
check_cflags -Wcast-qual
2963
check_cflags -Wwrite-strings
2964
check_cflags -Wtype-limits
2965
check_cflags -Wundef
2966
check_cflags -Wmissing-prototypes
2967
enabled extra_warnings && check_cflags -Winline
2968

    
2969
# add some linker flags
2970
check_ldflags -Wl,--warn-common
2971
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'
2972
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2973

    
2974
echo "X{};" > $TMPV
2975
if test_ldflags -Wl,--version-script,$TMPV; then
2976
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2977
    check_cc <<EOF && enable symver_asm_label
2978
void ff_foo(void) __asm__ ("av_foo@VERSION");
2979
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2980
EOF
2981
    check_cc <<EOF && enable symver_gnu_asm
2982
__asm__(".symver ff_foo,av_foo@VERSION");
2983
void ff_foo(void) {}
2984
EOF
2985
fi
2986

    
2987
if enabled small; then
2988
    add_cflags $size_cflags
2989
    optimizations="small"
2990
elif enabled optimizations; then
2991
    add_cflags $speed_cflags
2992
else
2993
    add_cflags $noopt_cflags
2994
fi
2995
check_cflags -fno-math-errno
2996
check_cflags -fno-signed-zeros
2997

    
2998
if enabled icc; then
2999
    # Just warnings, no remarks
3000
    check_cflags -w1
3001
    # -wd: Disable following warnings
3002
    # 144, 167, 556: -Wno-pointer-sign
3003
    # 1292: attribute "foo" ignored
3004
    # 10006: ignoring unknown option -fno-signed-zeros
3005
    # 10148: ignoring unknown option -Wno-parentheses
3006
    # 10156: ignoring option '-W'; no argument required
3007
    check_cflags -wd144,167,556,1292,10006,10148,10156
3008
    # 11030: Warning unknown option --as-needed
3009
    # 10156: ignoring option '-export'; no argument required
3010
    check_ldflags -wd10156,11030
3011
    # Allow to compile with optimizations
3012
    check_ldflags -march=$cpu
3013
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3014
    enable ebp_available
3015
    if enabled x86_32; then
3016
        test ${icc_version%%.*} -ge 11 && \
3017
            check_cflags -falign-stack=maintain-16-byte || \
3018
            disable aligned_stack
3019
    fi
3020
elif enabled ccc; then
3021
    # disable some annoying warnings
3022
    add_cflags -msg_disable cvtu32to64
3023
    add_cflags -msg_disable embedcomment
3024
    add_cflags -msg_disable needconstext
3025
    add_cflags -msg_disable nomainieee
3026
    add_cflags -msg_disable ptrmismatch1
3027
    add_cflags -msg_disable unreachcode
3028
elif enabled gcc; then
3029
    check_cflags -fno-tree-vectorize
3030
    check_cflags -Werror=implicit-function-declaration
3031
    check_cflags -Werror=missing-prototypes
3032
elif enabled llvm_gcc; then
3033
    check_cflags -mllvm -stack-alignment=16
3034
elif enabled clang; then
3035
    check_cflags -mllvm -stack-alignment=16
3036
    check_cflags -Qunused-arguments
3037
elif enabled armcc; then
3038
    # 2523: use of inline assembler is deprecated
3039
    add_cflags -W${armcc_opt},--diag_suppress=2523
3040
    add_cflags -W${armcc_opt},--diag_suppress=1207
3041
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3042
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3043
elif enabled tms470; then
3044
    add_cflags -pds=824 -pds=837
3045
elif enabled pathscale; then
3046
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3047
fi
3048

    
3049
enabled_any $THREADS_LIST      && enable threads
3050

    
3051
check_deps $CONFIG_LIST       \
3052
           $CONFIG_EXTRA      \
3053
           $HAVE_LIST         \
3054
           $DECODER_LIST      \
3055
           $ENCODER_LIST      \
3056
           $HWACCEL_LIST      \
3057
           $PARSER_LIST       \
3058
           $BSF_LIST          \
3059
           $DEMUXER_LIST      \
3060
           $MUXER_LIST        \
3061
           $FILTER_LIST       \
3062
           $INDEV_LIST        \
3063
           $OUTDEV_LIST       \
3064
           $PROTOCOL_LIST     \
3065
           $ACODEC_TESTS      \
3066
           $VCODEC_TESTS      \
3067
           $LAVF_TESTS        \
3068
           $LAVFI_TESTS       \
3069
           $SEEK_TESTS        \
3070

    
3071
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3072

    
3073
echo "install prefix            $prefix"
3074
echo "source path               $source_path"
3075
echo "C compiler                $cc"
3076
echo "ARCH                      $arch ($cpu)"
3077
if test "$build_suffix" != ""; then
3078
    echo "build suffix              $build_suffix"
3079
fi
3080
if test "$extra_version" != ""; then
3081
    echo "version string suffix     $extra_version"
3082
fi
3083
echo "big-endian                ${bigendian-no}"
3084
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3085
if enabled x86; then
3086
    echo "yasm                      ${yasm-no}"
3087
    echo "MMX enabled               ${mmx-no}"
3088
    echo "MMX2 enabled              ${mmx2-no}"
3089
    echo "3DNow! enabled            ${amd3dnow-no}"
3090
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3091
    echo "SSE enabled               ${sse-no}"
3092
    echo "SSSE3 enabled             ${ssse3-no}"
3093
    echo "CMOV enabled              ${cmov-no}"
3094
    echo "CMOV is fast              ${fast_cmov-no}"
3095
    echo "EBX available             ${ebx_available-no}"
3096
    echo "EBP available             ${ebp_available-no}"
3097
    echo "10 operands supported     ${ten_operands-no}"
3098
fi
3099
if enabled arm; then
3100
    echo "ARMv5TE enabled           ${armv5te-no}"
3101
    echo "ARMv6 enabled             ${armv6-no}"
3102
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3103
    echo "ARM VFP enabled           ${armvfp-no}"
3104
    echo "IWMMXT enabled            ${iwmmxt-no}"
3105
    echo "NEON enabled              ${neon-no}"
3106
fi
3107
if enabled mips; then
3108
    echo "MMI enabled               ${mmi-no}"
3109
fi
3110
if enabled ppc; then
3111
    echo "AltiVec enabled           ${altivec-no}"
3112
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3113
    echo "dcbzl available           ${dcbzl-no}"
3114
fi
3115
if enabled sparc; then
3116
    echo "VIS enabled               ${vis-no}"
3117
fi
3118
echo "debug symbols             ${debug-no}"
3119
echo "optimizations             ${optimizations-no}"
3120
echo "static                    ${static-no}"
3121
echo "shared                    ${shared-no}"
3122
echo "postprocessing support    ${postproc-no}"
3123
echo "new filter support        ${avfilter-no}"
3124
echo "network support           ${network-no}"
3125
echo "threading support         ${thread_type-no}"
3126
echo "SDL support               ${sdl-no}"
3127
echo "Sun medialib support      ${mlib-no}"
3128
echo "AVISynth enabled          ${avisynth-no}"
3129
echo "frei0r enabled            ${frei0r-no}"
3130
echo "libdc1394 support         ${libdc1394-no}"
3131
echo "libdirac enabled          ${libdirac-no}"
3132
echo "libfaac enabled           ${libfaac-no}"
3133
echo "libgsm enabled            ${libgsm-no}"
3134
echo "libmp3lame enabled        ${libmp3lame-no}"
3135
echo "libnut enabled            ${libnut-no}"
3136
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3137
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3138
echo "libopencv support         ${libopencv-no}"
3139
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3140
echo "librtmp enabled           ${librtmp-no}"
3141
echo "libschroedinger enabled   ${libschroedinger-no}"
3142
echo "libspeex enabled          ${libspeex-no}"
3143
echo "libtheora enabled         ${libtheora-no}"
3144
echo "libva enabled             ${vaapi-no}"
3145
echo "libvo-aacenc support      ${libvo_aacenc-no}"
3146
echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3147
echo "libvorbis enabled         ${libvorbis-no}"
3148
echo "libvpx enabled            ${libvpx-no}"
3149
echo "libx264 enabled           ${libx264-no}"
3150
echo "libxavs enabled           ${libxavs-no}"
3151
echo "libxvid enabled           ${libxvid-no}"
3152
echo "zlib enabled              ${zlib-no}"
3153
echo "bzlib enabled             ${bzlib-no}"
3154
echo
3155

    
3156
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3157
    echo "Enabled ${type}s:"
3158
    eval list=\$$(toupper $type)_LIST
3159
    print_enabled '_*' $list | sort | pr -r -3 -t
3160
    echo
3161
done
3162

    
3163
license="LGPL version 2.1 or later"
3164
if enabled nonfree; then
3165
    license="nonfree and unredistributable"
3166
elif enabled gplv3; then
3167
    license="GPL version 3 or later"
3168
elif enabled lgplv3; then
3169
    license="LGPL version 3 or later"
3170
elif enabled gpl; then
3171
    license="GPL version 2 or later"
3172
fi
3173

    
3174
echo "License: $license"
3175

    
3176
echo "Creating config.mak and config.h..."
3177

    
3178
# build tree in object directory if source path is different from current one
3179
if enabled source_path_used; then
3180
    DIRS="
3181
        doc
3182
        libavcodec
3183
        libavcodec/$arch
3184
        libavdevice
3185
        libavfilter
3186
        libavfilter/$arch
3187
        libavformat
3188
        libavutil
3189
        libavutil/$arch
3190
        libpostproc
3191
        libswscale
3192
        libswscale/$arch
3193
        tests
3194
        tools
3195
    "
3196
    FILES="
3197
        Makefile
3198
        common.mak
3199
        subdir.mak
3200
        doc/texi2pod.pl
3201
        libavcodec/Makefile
3202
        libavcodec/${arch}/Makefile
3203
        libavdevice/Makefile
3204
        libavfilter/Makefile
3205
        libavfilter/${arch}/Makefile
3206
        libavformat/Makefile
3207
        libavutil/Makefile
3208
        libpostproc/Makefile
3209
        libswscale/Makefile
3210
    "
3211
    map 'mkdir -p $v' $DIRS;
3212
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3213
fi
3214

    
3215
config_files="$TMPH config.mak"
3216

    
3217
cat > config.mak <<EOF
3218
# Automatically generated by configure - do not modify!
3219
ifndef LIBAV_CONFIG_MAK
3220
LIBAV_CONFIG_MAK=1
3221
LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3222
prefix=$prefix
3223
LIBDIR=\$(DESTDIR)$libdir
3224
SHLIBDIR=\$(DESTDIR)$shlibdir
3225
INCDIR=\$(DESTDIR)$incdir
3226
BINDIR=\$(DESTDIR)$bindir
3227
DATADIR=\$(DESTDIR)$datadir
3228
MANDIR=\$(DESTDIR)$mandir
3229
SRC_PATH="$source_path"
3230
SRC_PATH_BARE=$source_path
3231
BUILD_ROOT="$PWD"
3232
CC_IDENT=$cc_ident
3233
ARCH=$arch
3234
CC=$cc
3235
AS=$as
3236
LD=$ld
3237
DEPCC=$dep_cc
3238
YASM=$yasmexe
3239
YASMDEP=$yasmexe
3240
AR=$ar
3241
RANLIB=$ranlib
3242
LN_S=$ln_s
3243
CPPFLAGS=$CPPFLAGS
3244
CFLAGS=$CFLAGS
3245
ASFLAGS=$ASFLAGS
3246
CC_O=$CC_O
3247
DLLTOOL=$dlltool
3248
LDFLAGS=$LDFLAGS
3249
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3250
SHFLAGS=$SHFLAGS
3251
YASMFLAGS=$YASMFLAGS
3252
BUILDSUF=$build_suffix
3253
FULLNAME=$FULLNAME
3254
LIBPREF=$LIBPREF
3255
LIBSUF=$LIBSUF
3256
LIBNAME=$LIBNAME
3257
SLIBPREF=$SLIBPREF
3258
SLIBSUF=$SLIBSUF
3259
EXESUF=$EXESUF
3260
EXTRA_VERSION=$extra_version
3261
DEPFLAGS=$DEPFLAGS
3262
CCDEP=$CCDEP
3263
ASDEP=$ASDEP
3264
CC_DEPFLAGS=$CC_DEPFLAGS
3265
AS_DEPFLAGS=$AS_DEPFLAGS
3266
HOSTCC=$host_cc
3267
HOSTCFLAGS=$host_cflags
3268
HOSTEXESUF=$HOSTEXESUF
3269
HOSTLDFLAGS=$host_ldflags
3270
HOSTLIBS=$host_libs
3271
TARGET_EXEC=$target_exec
3272
TARGET_PATH=$target_path
3273
SDL_LIBS=$sdl_libs
3274
SDL_CFLAGS=$sdl_cflags
3275
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3276
EXTRALIBS=$extralibs
3277
INSTALL=install
3278
LIBTARGET=${LIBTARGET}
3279
SLIBNAME=${SLIBNAME}
3280
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3281
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3282
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3283
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3284
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3285
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3286
SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3287
EOF
3288

    
3289
get_version(){
3290
    name=$1
3291
    file=$source_path/$2
3292
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3293
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3294
    lcname=$(tolower $name)
3295
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3296
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3297
}
3298

    
3299
get_version LIBSWSCALE  libswscale/swscale.h
3300
get_version LIBPOSTPROC libpostproc/postprocess.h
3301
get_version LIBAVCODEC  libavcodec/version.h
3302
get_version LIBAVDEVICE libavdevice/avdevice.h
3303
get_version LIBAVFORMAT libavformat/version.h
3304
get_version LIBAVUTIL   libavutil/avutil.h
3305
get_version LIBAVFILTER libavfilter/avfilter.h
3306

    
3307
cat > $TMPH <<EOF
3308
/* Automatically generated by configure - do not modify! */
3309
#ifndef LIBAV_CONFIG_H
3310
#define LIBAV_CONFIG_H
3311
#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3312
#define LIBAV_LICENSE "$(c_escape $license)"
3313
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3314
#define CC_TYPE "$cc_type"
3315
#define CC_VERSION $cc_version
3316
#define restrict $_restrict
3317
#define EXTERN_PREFIX "${extern_prefix}"
3318
#define EXTERN_ASM ${extern_prefix}
3319
#define SLIBSUF "$SLIBSUF"
3320
EOF
3321

    
3322
test -n "$malloc_prefix" &&
3323
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3324

    
3325
if enabled small || disabled optimizations; then
3326
    echo "#undef  av_always_inline"  >> $TMPH
3327
    if enabled small; then
3328
        echo "#define av_always_inline inline"  >> $TMPH
3329
    else
3330
        echo "#define av_always_inline av_unused"  >> $TMPH
3331
    fi
3332
fi
3333

    
3334
if enabled yasm; then
3335
    append config_files $TMPASM
3336
    printf '' >$TMPASM
3337
fi
3338

    
3339
print_config ARCH_   "$config_files" $ARCH_LIST
3340
print_config HAVE_   "$config_files" $HAVE_LIST
3341
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3342
                                     $CONFIG_EXTRA      \
3343
                                     $DECODER_LIST      \
3344
                                     $ENCODER_LIST      \
3345
                                     $HWACCEL_LIST      \
3346
                                     $PARSER_LIST       \
3347
                                     $BSF_LIST          \
3348
                                     $DEMUXER_LIST      \
3349
                                     $MUXER_LIST        \
3350
                                     $FILTER_LIST       \
3351
                                     $PROTOCOL_LIST     \
3352
                                     $INDEV_LIST        \
3353
                                     $OUTDEV_LIST       \
3354

    
3355
cat >>config.mak <<EOF
3356
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3357
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3358
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3359
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3360
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3361
EOF
3362

    
3363
echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3364
echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3365

    
3366
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3367
cp_if_changed $TMPH config.h
3368
touch .config
3369

    
3370
enabled yasm && cp_if_changed $TMPASM config.asm
3371

    
3372
cat > $TMPH <<EOF
3373
/* Generated by ffconf */
3374
#ifndef AVUTIL_AVCONFIG_H
3375
#define AVUTIL_AVCONFIG_H
3376
EOF
3377

    
3378
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3379

    
3380
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3381

    
3382
cp_if_changed $TMPH libavutil/avconfig.h
3383

    
3384
test -n "$WARNINGS" && printf "\n$WARNINGS"
3385

    
3386
# build pkg-config files
3387

    
3388
pkgconfig_generate(){
3389
name=$1
3390
shortname=${name#lib}${build_suffix}
3391
comment=$2
3392
version=$3
3393
libs=$4
3394
requires=$5
3395
enabled ${name#lib} || return 0
3396
cat <<EOF > $name/$name.pc
3397
prefix=$prefix
3398
exec_prefix=\${prefix}
3399
libdir=$libdir
3400
includedir=$incdir
3401

    
3402
Name: $name
3403
Description: $comment
3404
Version: $version
3405
Requires: $(enabled shared || echo $requires)
3406
Requires.private: $(enabled shared && echo $requires)
3407
Conflicts:
3408
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3409
Libs.private: $(enabled shared && echo $libs)
3410
Cflags: -I\${includedir}
3411
EOF
3412
cat <<EOF > $name/$name-uninstalled.pc
3413
prefix=
3414
exec_prefix=
3415
libdir=\${pcfiledir}
3416
includedir=${source_path}
3417

    
3418
Name: $name
3419
Description: $comment
3420
Version: $version
3421
Requires: $requires
3422
Conflicts:
3423
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3424
Cflags: -I\${includedir}
3425
EOF
3426
}
3427

    
3428
pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3429
pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3430
pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3431
pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3432
pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3433
pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3434
pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"