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

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

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

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

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

    
74
Configuration options:
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  --disable-static         do not build static libraries [no]
76
  --enable-shared          build shared libraries [no]
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  --enable-gpl             allow use of GPL code, the resulting libs
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                           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]
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  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
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  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
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  --disable-avdevice       disable libavdevice build
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  --disable-avcodec        disable libavcodec build
89
  --disable-avformat       disable libavformat build
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  --disable-swscale        disable libswscale build
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  --disable-postproc       disable libpostproc build
92
  --disable-avfilter       disable video filter support [no]
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  --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
  --enable-gray            enable full grayscale support (slower color)
98
  --disable-swscale-alpha  disable alpha channel support in swscale
99
  --disable-fastdiv        disable table-based division
100
  --enable-small           optimize for size instead of speed
101
  --disable-aandct         disable AAN DCT code
102
  --disable-dct            disable DCT code
103
  --disable-fft            disable FFT code
104
  --disable-golomb         disable Golomb code
105
  --disable-huffman        disable Huffman code
106
  --disable-lpc            disable LPC code
107
  --disable-mdct           disable MDCT code
108
  --disable-rdft           disable RDFT code
109
  --disable-vaapi          disable VAAPI code
110
  --disable-vdpau          disable VDPAU code
111
  --disable-dxva2          disable DXVA2 code
112
  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
113
  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
114
  --enable-memalign-hack   emulate memalign, interferes with memory debuggers
115
  --disable-everything     disable all components listed below
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  --disable-encoder=NAME   disable encoder NAME
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  --enable-encoder=NAME    enable encoder NAME
118
  --disable-encoders       disable all encoders
119
  --disable-decoder=NAME   disable decoder NAME
120
  --enable-decoder=NAME    enable decoder NAME
121
  --disable-decoders       disable all decoders
122
  --disable-hwaccel=NAME   disable hwaccel NAME
123
  --enable-hwaccel=NAME    enable hwaccel NAME
124
  --disable-hwaccels       disable all hwaccels
125
  --disable-muxer=NAME     disable muxer NAME
126
  --enable-muxer=NAME      enable muxer NAME
127
  --disable-muxers         disable all muxers
128
  --disable-demuxer=NAME   disable demuxer NAME
129
  --enable-demuxer=NAME    enable demuxer NAME
130
  --disable-demuxers       disable all demuxers
131
  --enable-parser=NAME     enable parser NAME
132
  --disable-parser=NAME    disable parser NAME
133
  --disable-parsers        disable all parsers
134
  --enable-bsf=NAME        enable bitstream filter NAME
135
  --disable-bsf=NAME       disable bitstream filter NAME
136
  --disable-bsfs           disable all bitstream filters
137
  --enable-protocol=NAME   enable protocol NAME
138
  --disable-protocol=NAME  disable protocol NAME
139
  --disable-protocols      disable all protocols
140
  --disable-indev=NAME     disable input device NAME
141
  --disable-outdev=NAME    disable output device NAME
142
  --disable-indevs         disable input devices
143
  --disable-outdevs        disable output devices
144
  --disable-devices        disable all devices
145
  --enable-filter=NAME     enable filter NAME
146
  --disable-filter=NAME    disable filter NAME
147
  --disable-filters        disable all filters
148
  --list-decoders          show all available decoders
149
  --list-encoders          show all available encoders
150
  --list-hwaccels          show all available hardware accelerators
151
  --list-muxers            show all available muxers
152
  --list-demuxers          show all available demuxers
153
  --list-parsers           show all available parsers
154
  --list-protocols         show all available protocols
155
  --list-bsfs              show all available bitstream filters
156
  --list-indevs            show all available input devices
157
  --list-outdevs           show all available output devices
158
  --list-filters           show all available filters
159

    
160
External library support:
161
  --enable-avisynth        enable reading of AVISynth script files [no]
162
  --enable-bzlib           enable bzlib [autodetect]
163
  --enable-frei0r          enable frei0r video filtering
164
  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
165
  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
166
  --enable-libopencv       enable video filtering via libopencv [no]
167
  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
168
                           and libraw1394 [no]
169
  --enable-libdirac        enable Dirac support via libdirac [no]
170
  --enable-libfaac         enable FAAC support via libfaac [no]
171
  --enable-libfreetype     enable libfreetype [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
    libfreetype
932
    libgsm
933
    libmp3lame
934
    libnut
935
    libopencore_amrnb
936
    libopencore_amrwb
937
    libopencv
938
    libopenjpeg
939
    librtmp
940
    libschroedinger
941
    libspeex
942
    libtheora
943
    libvo_aacenc
944
    libvo_amrwbenc
945
    libvorbis
946
    libvpx
947
    libx264
948
    libxavs
949
    libxvid
950
    lpc
951
    lsp
952
    mdct
953
    memalign_hack
954
    mlib
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
    ldbrx
1073
    libdc1394_1
1074
    libdc1394_2
1075
    llrint
1076
    llrintf
1077
    local_aligned_16
1078
    local_aligned_8
1079
    localtime_r
1080
    log2
1081
    log2f
1082
    loongson
1083
    lrint
1084
    lrintf
1085
    lzo1x_999_compress
1086
    machine_ioctl_bt848_h
1087
    machine_ioctl_meteor_h
1088
    malloc_h
1089
    MapViewOfFile
1090
    memalign
1091
    mkstemp
1092
    mmap
1093
    pld
1094
    posix_memalign
1095
    round
1096
    roundf
1097
    sdl
1098
    sdl_video_size
1099
    setmode
1100
    sndio_h
1101
    socklen_t
1102
    soundcard_h
1103
    poll_h
1104
    setrlimit
1105
    strerror_r
1106
    strtok_r
1107
    struct_addrinfo
1108
    struct_ipv6_mreq
1109
    struct_sockaddr_in6
1110
    struct_sockaddr_sa_len
1111
    struct_sockaddr_storage
1112
    symver
1113
    symver_gnu_asm
1114
    symver_asm_label
1115
    sys_mman_h
1116
    sys_resource_h
1117
    sys_select_h
1118
    sys_soundcard_h
1119
    sys_videoio_h
1120
    ten_operands
1121
    threads
1122
    trunc
1123
    truncf
1124
    vfp_args
1125
    VirtualAlloc
1126
    winsock2_h
1127
    xform_asm
1128
    xmm_clobbers
1129
    yasm
1130
"
1131

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

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

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

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

    
1193
CMDLINE_APPEND="
1194
    extra_cflags
1195
"
1196

    
1197
# code dependency declarations
1198

    
1199
# architecture extensions
1200

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

    
1208
mmi_deps="mips"
1209

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

    
1213
vis_deps="sparc"
1214

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

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

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

    
1232
symver_if_any="symver_asm_label symver_gnu_asm"
1233

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

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

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

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

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

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

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

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

    
1462
# filters
1463
blackframe_filter_deps="gpl"
1464
cropdetect_filter_deps="gpl"
1465
drawtext_filter_deps="libfreetype"
1466
frei0r_filter_deps="frei0r dlopen strtok_r"
1467
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1468
hqdn3d_filter_deps="gpl"
1469
ocv_filter_deps="libopencv"
1470
scale_filter_deps="swscale"
1471
yadif_filter_deps="gpl"
1472

    
1473
# libraries
1474
avdevice_deps="avcodec avformat"
1475
avformat_deps="avcodec"
1476
postproc_deps="gpl"
1477

    
1478
# programs
1479
ffmpeg_deps="avcodec avformat swscale"
1480
ffmpeg_select="buffer_filter"
1481
ffplay_deps="avcodec avformat swscale sdl"
1482
ffplay_select="rdft"
1483
ffprobe_deps="avcodec avformat"
1484
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1485
ffserver_extralibs='$ldl'
1486

    
1487
doc_deps="texi2html"
1488

    
1489
# tests
1490

    
1491
test_deps(){
1492
    suf1=$1
1493
    suf2=$2
1494
    shift 2
1495
    for v; do
1496
        dep=${v%=*}
1497
        tests=${v#*=}
1498
        for name in ${tests}; do
1499
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1500
        done
1501
    done
1502
}
1503

    
1504
set_ne_test_deps(){
1505
    eval ${1}_be_test_deps="bigendian"
1506
    eval ${1}_le_test_deps="!bigendian"
1507
}
1508

    
1509
test_deps _encoder _decoder                                             \
1510
    adpcm_g726=g726                                                     \
1511
    adpcm_ima_qt                                                        \
1512
    adpcm_ima_wav                                                       \
1513
    adpcm_ms                                                            \
1514
    adpcm_swf                                                           \
1515
    adpcm_yamaha=adpcm_yam                                              \
1516
    alac                                                                \
1517
    asv1                                                                \
1518
    asv2                                                                \
1519
    bmp                                                                 \
1520
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1521
    dvvideo="dv dv50"                                                   \
1522
    ffv1                                                                \
1523
    flac                                                                \
1524
    flashsv                                                             \
1525
    flv                                                                 \
1526
    gif                                                                 \
1527
    h261                                                                \
1528
    h263="h263 h263p"                                                   \
1529
    huffyuv                                                             \
1530
    jpegls                                                              \
1531
    mjpeg="jpg mjpeg ljpeg"                                             \
1532
    mp2                                                                 \
1533
    mpeg1video="mpeg mpeg1b"                                            \
1534
    mpeg2video="mpeg2 mpeg2thread"                                      \
1535
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1536
    msmpeg4v3=msmpeg4                                                   \
1537
    msmpeg4v2                                                           \
1538
    pbm=pbmpipe                                                         \
1539
    pcx                                                                 \
1540
    pgm="pgm pgmpipe"                                                   \
1541
    png                                                                 \
1542
    ppm="ppm ppmpipe"                                                   \
1543
    rawvideo="rgb yuv"                                                  \
1544
    roq                                                                 \
1545
    rv10                                                                \
1546
    rv20                                                                \
1547
    sgi                                                                 \
1548
    snow="snow snowll"                                                  \
1549
    svq1                                                                \
1550
    targa=tga                                                           \
1551
    tiff                                                                \
1552
    wmav1                                                               \
1553
    wmav2                                                               \
1554
    wmv1                                                                \
1555
    wmv2                                                                \
1556

    
1557
test_deps _muxer _demuxer                                               \
1558
    aiff                                                                \
1559
    pcm_alaw=alaw                                                       \
1560
    asf                                                                 \
1561
    au                                                                  \
1562
    avi                                                                 \
1563
    dv=dv_fmt                                                           \
1564
    ffm                                                                 \
1565
    flv=flv_fmt                                                         \
1566
    gxf                                                                 \
1567
    matroska=mkv                                                        \
1568
    mmf                                                                 \
1569
    mov                                                                 \
1570
    pcm_mulaw=mulaw                                                     \
1571
    mxf                                                                 \
1572
    nut                                                                 \
1573
    ogg                                                                 \
1574
    rawvideo=pixfmt                                                     \
1575
    rm                                                                  \
1576
    swf                                                                 \
1577
    mpegts=ts                                                           \
1578
    voc                                                                 \
1579
    wav                                                                 \
1580
    yuv4mpegpipe=yuv4mpeg                                               \
1581

    
1582
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1583
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1584

    
1585
set_ne_test_deps pixdesc
1586
set_ne_test_deps pixfmts_copy
1587
set_ne_test_deps pixfmts_crop
1588
set_ne_test_deps pixfmts_hflip
1589
set_ne_test_deps pixfmts_null
1590
set_ne_test_deps pixfmts_pad
1591
set_ne_test_deps pixfmts_scale
1592
set_ne_test_deps pixfmts_vflip
1593

    
1594
# default parameters
1595

    
1596
logfile="config.log"
1597

    
1598
# installation paths
1599
prefix_default="/usr/local"
1600
bindir_default='${prefix}/bin'
1601
datadir_default='${prefix}/share/ffmpeg'
1602
incdir_default='${prefix}/include'
1603
libdir_default='${prefix}/lib'
1604
mandir_default='${prefix}/share/man'
1605
shlibdir_default="$libdir_default"
1606

    
1607
# toolchain
1608
ar_default="ar"
1609
cc_default="gcc"
1610
cc_version=\"unknown\"
1611
host_cc_default="gcc"
1612
ln_s="ln -sf"
1613
nm_default="nm"
1614
objformat="elf"
1615
pkg_config_default=pkg-config
1616
ranlib="ranlib"
1617
yasmexe="yasm"
1618
nogas=":"
1619

    
1620
nm_opts='-g'
1621

    
1622
# machine
1623
arch_default=$(uname -m)
1624
cpu="generic"
1625

    
1626
# OS
1627
target_os_default=$(tolower $(uname -s))
1628
host_os=$target_os_default
1629

    
1630
# configurable options
1631
enable avcodec
1632
enable avdevice
1633
enable avfilter
1634
enable avformat
1635
enable avutil
1636
enable asm
1637
enable debug
1638
enable doc
1639
enable fastdiv
1640
enable ffmpeg
1641
enable ffplay
1642
enable ffprobe
1643
enable ffserver
1644
enable network
1645
enable optimizations
1646
enable postproc
1647
enable protocols
1648
enable static
1649
enable swscale
1650
enable swscale_alpha
1651

    
1652
# build settings
1653
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1654
FFSERVERLDFLAGS=-Wl,-E
1655
LIBPREF="lib"
1656
LIBSUF=".a"
1657
FULLNAME='$(NAME)$(BUILDSUF)'
1658
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1659
SLIBPREF="lib"
1660
SLIBSUF=".so"
1661
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1662
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1663
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1664
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1665

    
1666
CC_O='-o $@'
1667

    
1668
host_cflags='-D_ISOC99_SOURCE -O3 -g -Wall'
1669
host_libs='-lm'
1670

    
1671
target_path='$(CURDIR)'
1672

    
1673
# since the object filename is not given with the -MM flag, the compiler
1674
# is only able to print the basename, and we must add the path ourselves
1675
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1676
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1677

    
1678
# find source path
1679
source_path="$(dirname "$0")"
1680
enable source_path_used
1681
if test -f configure; then
1682
    source_path="$(pwd)"
1683
    disable source_path_used
1684
else
1685
    source_path="$(cd "$source_path"; pwd)"
1686
    echo "$source_path" | grep -q '[[:blank:]]' &&
1687
        die "Out of tree builds are impossible with whitespace in source path."
1688
    test -e "$source_path/config.h" &&
1689
        die "Out of tree builds are impossible with config.h in source dir."
1690
fi
1691

    
1692
for v in "$@"; do
1693
    r=${v#*=}
1694
    l=${v%"$r"}
1695
    r=$(sh_quote "$r")
1696
    LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1697
done
1698

    
1699
find_things(){
1700
    thing=$1
1701
    pattern=$2
1702
    file=$source_path/$3
1703
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1704
}
1705

    
1706
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1707
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1708
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1709
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1710
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1711
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1712
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1713
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1714
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1715
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1716
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1717

    
1718
find_tests(){
1719
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1720
}
1721

    
1722
ACODEC_TESTS=$(find_tests acodec)
1723
VCODEC_TESTS=$(find_tests vsynth1)
1724
LAVF_TESTS=$(find_tests lavf)
1725
LAVFI_TESTS=$(find_tests lavfi)
1726
SEEK_TESTS=$(find_tests seek seek_)
1727

    
1728
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1729

    
1730
for n in $COMPONENT_LIST; do
1731
    v=$(toupper ${n%s})_LIST
1732
    eval enable \$$v
1733
    eval ${n}_if_any="\$$v"
1734
done
1735

    
1736
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1737

    
1738
die_unknown(){
1739
    echo "Unknown option \"$1\"."
1740
    echo "See $0 --help for available options."
1741
    exit 1
1742
}
1743

    
1744
show_list() {
1745
    suffix=_$1
1746
    shift
1747
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1748
    exit 0
1749
}
1750

    
1751
for opt do
1752
    optval="${opt#*=}"
1753
    case "$opt" in
1754
    --extra-ldflags=*) add_ldflags $optval
1755
    ;;
1756
    --extra-libs=*) add_extralibs $optval
1757
    ;;
1758
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1759
    ;;
1760
    --enable-debug=*) debuglevel="$optval"
1761
    ;;
1762
    --disable-everything)
1763
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1764
    ;;
1765
    --enable-*=*|--disable-*=*)
1766
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1767
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1768
    eval list=\$$(toupper $thing)_LIST
1769
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1770
    $action $(filter "$name" $list)
1771
    ;;
1772
    --enable-?*|--disable-?*)
1773
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1774
    if is_in $option $COMPONENT_LIST; then
1775
        test $action = disable && action=unset
1776
        eval $action \$$(toupper ${option%s})_LIST
1777
    elif is_in $option $CMDLINE_SELECT; then
1778
        $action $option
1779
    else
1780
        die_unknown $opt
1781
    fi
1782
    ;;
1783
    --list-*)
1784
        NAME="${opt#--list-}"
1785
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1786
        NAME=${NAME%s}
1787
        eval show_list $NAME \$$(toupper $NAME)_LIST
1788
    ;;
1789
    --help|-h) show_help
1790
    ;;
1791
    *)
1792
    optname="${opt%%=*}"
1793
    optname="${optname#--}"
1794
    optname=$(echo "$optname" | sed 's/-/_/g')
1795
    if is_in $optname $CMDLINE_SET; then
1796
        eval $optname='$optval'
1797
    elif is_in $optname $CMDLINE_APPEND; then
1798
        append $optname "$optval"
1799
    else
1800
         die_unknown $opt
1801
    fi
1802
    ;;
1803
    esac
1804
done
1805

    
1806
disabled logging && logfile=/dev/null
1807

    
1808
echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1809
set >> $logfile
1810

    
1811
test -n "$cross_prefix" && enable cross_compile
1812

    
1813
if enabled cross_compile; then
1814
    test -n "$arch" && test -n "$target_os" ||
1815
        die "Must specify target arch and OS when cross-compiling"
1816
fi
1817

    
1818
set_default arch target_os
1819

    
1820
ar_default="${cross_prefix}${ar_default}"
1821
cc_default="${cross_prefix}${cc_default}"
1822
nm_default="${cross_prefix}${nm_default}"
1823
pkg_config_default="${cross_prefix}${pkg_config_default}"
1824
ranlib="${cross_prefix}${ranlib}"
1825

    
1826
sysinclude_default="${sysroot}/usr/include"
1827

    
1828
set_default cc nm pkg_config sysinclude
1829
enabled cross_compile || host_cc_default=$cc
1830
set_default host_cc
1831

    
1832
if ! $pkg_config --version >/dev/null 2>&1; then
1833
    warn "$pkg_config not found, library detection may fail."
1834
    pkg_config=false
1835
fi
1836

    
1837
exesuf() {
1838
    case $1 in
1839
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1840
    esac
1841
}
1842

    
1843
EXESUF=$(exesuf $target_os)
1844
HOSTEXESUF=$(exesuf $host_os)
1845

    
1846
# set temporary file name
1847
: ${TMPDIR:=$TEMPDIR}
1848
: ${TMPDIR:=$TMP}
1849
: ${TMPDIR:=/tmp}
1850

    
1851
if ! check_cmd mktemp -u XXXXXX; then
1852
    # simple replacement for missing mktemp
1853
    # NOT SAFE FOR GENERAL USE
1854
    mktemp(){
1855
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1856
    }
1857
fi
1858

    
1859
tmpfile(){
1860
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1861
        (set -C; exec > $tmp) 2>/dev/null ||
1862
        die "Unable to create temporary file in $TMPDIR."
1863
    append TMPFILES $tmp
1864
    eval $1=$tmp
1865
}
1866

    
1867
trap 'rm -f -- $TMPFILES' EXIT
1868

    
1869
tmpfile TMPC  .c
1870
tmpfile TMPE  $EXESUF
1871
tmpfile TMPH  .h
1872
tmpfile TMPO  .o
1873
tmpfile TMPS  .S
1874
tmpfile TMPV  .ver
1875
tmpfile TMPSH .sh
1876
tmpfile TMPASM .asm
1877

    
1878
unset -f mktemp
1879

    
1880
chmod +x $TMPE
1881

    
1882
# make sure we can execute files in $TMPDIR
1883
cat > $TMPSH 2>> $logfile <<EOF
1884
#! /bin/sh
1885
EOF
1886
chmod +x $TMPSH >> $logfile 2>&1
1887
if ! $TMPSH >> $logfile 2>&1; then
1888
    cat <<EOF
1889
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1890
variable to another directory and make sure that it is not mounted noexec.
1891
EOF
1892
    die "Sanity test failed."
1893
fi
1894

    
1895
filter_cflags=echo
1896
filter_cppflags=echo
1897
filter_asflags=echo
1898

    
1899
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1900
    cc_type=llvm_gcc
1901
    cc_version=__VERSION__
1902
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1903
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1904
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1905
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1906
    speed_cflags='-O3'
1907
    size_cflags='-Os'
1908
elif $cc -v 2>&1 | grep -qi ^gcc; then
1909
    cc_type=gcc
1910
    cc_version=__VERSION__
1911
    gcc_version=$($cc --version | head -n1)
1912
    gcc_basever=$($cc -dumpversion)
1913
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1914
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1915
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1916
    if ! $cc -dumpversion | grep -q '^2\.'; then
1917
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1918
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1919
    fi
1920
    speed_cflags='-O3'
1921
    size_cflags='-Os'
1922
elif $cc --version 2>/dev/null | grep -q Intel; then
1923
    cc_type=icc
1924
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1925
    cc_ident=$($cc --version | head -n1)
1926
    icc_version=$($cc -dumpversion)
1927
    CC_DEPFLAGS='-MMD'
1928
    AS_DEPFLAGS='-MMD'
1929
    speed_cflags='-O3'
1930
    size_cflags='-Os'
1931
    noopt_cflags='-O1'
1932
elif $cc -v 2>&1 | grep -q xlc; then
1933
    cc_type=xlc
1934
    cc_version="AV_STRINGIFY(__IBMC__)"
1935
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1936
    speed_cflags='-O5'
1937
    size_cflags='-O5 -qcompact'
1938
elif $cc -V 2>/dev/null | grep -q Compaq; then
1939
    cc_type=ccc
1940
    cc_version="AV_STRINGIFY(__DECC_VER)"
1941
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1942
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1943
    debuglevel=3
1944
    add_ldflags -Wl,-z,now # calls to libots crash without this
1945
    speed_cflags='-fast'
1946
    size_cflags='-O1'
1947
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1948
    test -d "$sysroot" || die "No valid sysroot specified."
1949
    cc_type=armcc
1950
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1951
    cc_ident=$($cc --vsn | head -n1)
1952
    armcc_conf="$PWD/armcc.conf"
1953
    $cc --arm_linux_configure                 \
1954
        --arm_linux_config_file="$armcc_conf" \
1955
        --configure_sysroot="$sysroot"        \
1956
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1957
        die "Error creating armcc configuration file."
1958
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1959
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1960
    as_default="${cross_prefix}gcc"
1961
    CC_DEPFLAGS='-MMD'
1962
    AS_DEPFLAGS='-MMD'
1963
    speed_cflags='-O3'
1964
    size_cflags='-Os'
1965
    filter_asflags="filter_out -W${armcc_opt}*"
1966
elif $cc -version 2>/dev/null | grep -q TMS470; then
1967
    cc_type=tms470
1968
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1969
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1970
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1971
    CC_O='-fr=$(@D)'
1972
    as_default="${cross_prefix}gcc"
1973
    ld_default="${cross_prefix}gcc"
1974
    TMPO=$(basename $TMPC .c).o
1975
    append TMPFILES $TMPO
1976
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1977
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1978
    AS_DEPFLAGS='-MMD'
1979
    speed_cflags='-O3 -mf=5'
1980
    size_cflags='-O3 -mf=2'
1981
    filter_cflags=tms470_flags
1982
    tms470_flags(){
1983
        for flag; do
1984
            case $flag in
1985
                -march=*|-mcpu=*)
1986
                    case "${flag#*=}" in
1987
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1988
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1989
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1990
                        armv6*|arm11*)          echo -mv=6   ;;
1991
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1992
                                                echo -mv=5e  ;;
1993
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1994
                    esac
1995
                    ;;
1996
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1997
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
1998
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1999
                -msoft-float)   echo --float_support=vfplib       ;;
2000
                -O[0-3]|-mf=*)  echo $flag                        ;;
2001
                -g)             echo -g -mn                       ;;
2002
                -pds=*)         echo $flag                        ;;
2003
            esac
2004
        done
2005
    }
2006
elif $cc -v 2>&1 | grep -q clang; then
2007
    cc_type=clang
2008
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2009
        cc_version=__clang_version__ || cc_version=__VERSION__
2010
    cc_ident=$($cc --version | head -n1)
2011
    CC_DEPFLAGS='-MMD'
2012
    AS_DEPFLAGS='-MMD'
2013
    speed_cflags='-O3'
2014
    size_cflags='-Os'
2015
elif $cc -V 2>&1 | grep -q Sun; then
2016
    cc_type=suncc
2017
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2018
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2019
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2020
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2021
    speed_cflags='-O5'
2022
    size_cflags='-O5 -xspace'
2023
    filter_cflags=suncc_flags
2024
    suncc_flags(){
2025
        for flag; do
2026
            case $flag in
2027
                -march=*|-mcpu=*)
2028
                    case "${flag#*=}" in
2029
                        native)                   echo -xtarget=native       ;;
2030
                        v9|niagara)               echo -xarch=sparc          ;;
2031
                        ultrasparc)               echo -xarch=sparcvis       ;;
2032
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2033
                        i586|pentium)             echo -xchip=pentium        ;;
2034
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2035
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2036
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2037
                        pentium4*)          echo -xtarget=pentium4           ;;
2038
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2039
                        *-sse3)             echo -xarch=sse3                 ;;
2040
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2041
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2042
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2043
                        k8|opteron|athlon64|athlon-fx)
2044
                                                  echo -xarch=sse2a          ;;
2045
                        athlon*)                  echo -xarch=pentium_proa   ;;
2046
                    esac
2047
                    ;;
2048
                -std=c99)             echo -xc99              ;;
2049
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2050
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2051
                -W*,*)                echo $flag              ;;
2052
                -f*-*|-W*)                                    ;;
2053
                *)                    echo $flag              ;;
2054
            esac
2055
        done
2056
    }
2057
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2058
    cc_type=pathscale
2059
    cc_version=__PATHSCALE__
2060
    cc_ident=$($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
elif $cc -v 2>&1 | grep -q Open64; then
2066
    cc_type=open64
2067
    cc_version=__OPEN64__
2068
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071
    speed_cflags='-O2'
2072
    size_cflags='-Os'
2073
fi
2074

    
2075
test -n "$cc_type" && enable $cc_type ||
2076
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2077

    
2078
: ${as_default:=$cc}
2079
: ${dep_cc_default:=$cc}
2080
: ${ld_default:=$cc}
2081
set_default ar as dep_cc ld
2082

    
2083
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2084
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2085

    
2086
add_cflags $extra_cflags
2087
add_asflags $extra_cflags
2088

    
2089
if test -n "$sysroot"; then
2090
    case "$cc_type" in
2091
        gcc|llvm_gcc|clang)
2092
            add_cppflags --sysroot="$sysroot"
2093
            add_ldflags --sysroot="$sysroot"
2094
        ;;
2095
        tms470)
2096
            add_cppflags -I"$sysinclude"
2097
            add_ldflags  --sysroot="$sysroot"
2098
        ;;
2099
    esac
2100
fi
2101

    
2102
if test "$cpu" = host; then
2103
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2104

    
2105
    case "$cc_type" in
2106
        gcc|llvm_gcc)
2107
            check_native(){
2108
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2109
                sed -n "/$1=/{
2110
                            s/.*$1=\\([^ ]*\\).*/\\1/
2111
                            p
2112
                            q
2113
                        }" $TMPE
2114
            }
2115
            cpu=$(check_native -march || check_native -mcpu)
2116
        ;;
2117
    esac
2118

    
2119
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2120
fi
2121

    
2122
# Deal with common $arch aliases
2123
case "$arch" in
2124
    arm*)
2125
        arch="arm"
2126
    ;;
2127
    mips|mipsel|IP*)
2128
        arch="mips"
2129
    ;;
2130
    mips64*)
2131
        arch="mips"
2132
        subarch="mips64"
2133
    ;;
2134
    parisc|hppa)
2135
        arch="parisc"
2136
    ;;
2137
    parisc64|hppa64)
2138
        arch="parisc"
2139
        subarch="parisc64"
2140
    ;;
2141
    "Power Macintosh"|ppc|powerpc)
2142
        arch="ppc"
2143
    ;;
2144
    ppc64|powerpc64)
2145
        arch="ppc"
2146
        subarch="ppc64"
2147
    ;;
2148
    s390|s390x)
2149
        arch="s390"
2150
    ;;
2151
    sh4|sh)
2152
        arch="sh4"
2153
    ;;
2154
    sun4u|sparc64)
2155
        arch="sparc"
2156
        subarch="sparc64"
2157
    ;;
2158
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2159
        arch="x86"
2160
    ;;
2161
esac
2162

    
2163
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2164
enable $arch
2165

    
2166
# Add processor-specific flags
2167
if test "$cpu" = generic; then
2168
    : do nothing
2169
elif enabled ppc; then
2170

    
2171
    case $(tolower $cpu) in
2172
        601|ppc601|powerpc601)
2173
            cpuflags="-mcpu=601"
2174
            disable altivec
2175
        ;;
2176
        603*|ppc603*|powerpc603*)
2177
            cpuflags="-mcpu=603"
2178
            disable altivec
2179
        ;;
2180
        604*|ppc604*|powerpc604*)
2181
            cpuflags="-mcpu=604"
2182
            disable altivec
2183
        ;;
2184
        g3|75*|ppc75*|powerpc75*)
2185
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2186
            disable altivec
2187
        ;;
2188
        g4|745*|ppc745*|powerpc745*)
2189
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2190
        ;;
2191
        74*|ppc74*|powerpc74*)
2192
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2193
        ;;
2194
        g5|970|ppc970|powerpc970|power4*)
2195
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2196
        ;;
2197
        cell)
2198
            cpuflags="-mcpu=cell"
2199
            enable ldbrx
2200
        ;;
2201
        e500v2)
2202
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2203
            disable altivec
2204
        ;;
2205
        e500)
2206
            cpuflags="-mcpu=8540 -mhard-float"
2207
            disable altivec
2208
        ;;
2209
    esac
2210

    
2211
elif enabled x86; then
2212

    
2213
    case $cpu in
2214
        i[345]86|pentium)
2215
            cpuflags="-march=$cpu"
2216
            disable mmx
2217
        ;;
2218
        # targets that do NOT support conditional mov (cmov)
2219
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2220
            cpuflags="-march=$cpu"
2221
            disable cmov
2222
        ;;
2223
        # targets that do support conditional mov (cmov)
2224
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2225
            cpuflags="-march=$cpu"
2226
            enable cmov
2227
            enable fast_cmov
2228
        ;;
2229
        # targets that do support conditional mov but on which it's slow
2230
        pentium4|pentium4m|prescott|nocona)
2231
            cpuflags="-march=$cpu"
2232
            enable cmov
2233
            disable fast_cmov
2234
        ;;
2235
    esac
2236

    
2237
elif enabled sparc; then
2238

    
2239
    case $cpu in
2240
        niagara)
2241
            cpuflags="-mcpu=$cpu"
2242
            disable vis
2243
        ;;
2244
        sparc64)
2245
            cpuflags="-mcpu=v9"
2246
        ;;
2247
    esac
2248

    
2249
elif enabled arm; then
2250

    
2251
    case $cpu in
2252
        armv*)
2253
            cpuflags="-march=$cpu"
2254
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2255
        ;;
2256
        *)
2257
            cpuflags="-mcpu=$cpu"
2258
            case $cpu in
2259
                cortex-a*)                               subarch=armv7a  ;;
2260
                cortex-r*)                               subarch=armv7r  ;;
2261
                cortex-m*)                               subarch=armv7m  ;;
2262
                arm11*)                                  subarch=armv6   ;;
2263
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2264
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2265
            esac
2266
        ;;
2267
    esac
2268

    
2269
elif enabled alpha; then
2270

    
2271
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2272

    
2273
elif enabled bfin; then
2274

    
2275
    cpuflags="-mcpu=$cpu"
2276

    
2277
elif enabled mips; then
2278

    
2279
    cpuflags="-march=$cpu"
2280

    
2281
elif enabled avr32; then
2282

    
2283
    case $cpu in
2284
        ap7[02]0[0-2])
2285
            subarch="avr32_ap"
2286
            cpuflags="-mpart=$cpu"
2287
        ;;
2288
        ap)
2289
            subarch="avr32_ap"
2290
            cpuflags="-march=$cpu"
2291
        ;;
2292
        uc3[ab]*)
2293
            subarch="avr32_uc"
2294
            cpuflags="-mcpu=$cpu"
2295
        ;;
2296
        uc)
2297
            subarch="avr32_uc"
2298
            cpuflags="-march=$cpu"
2299
        ;;
2300
    esac
2301

    
2302
fi
2303

    
2304
add_cflags $cpuflags
2305
add_asflags $cpuflags
2306

    
2307
# compiler sanity check
2308
check_exec <<EOF
2309
int main(void){ return 0; }
2310
EOF
2311
if test "$?" != 0; then
2312
    echo "$cc is unable to create an executable file."
2313
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2314
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2315
        echo "Only do this if you know what cross compiling means."
2316
    fi
2317
    die "C compiler test failed."
2318
fi
2319

    
2320
add_cppflags -D_ISOC99_SOURCE
2321
check_cflags -std=c99
2322
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2323
#include <stdlib.h>
2324
EOF
2325
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2326
#include <stdlib.h>
2327
EOF
2328

    
2329
check_host_cflags -std=c99
2330

    
2331
case "$arch" in
2332
    alpha|ia64|mips|parisc|sparc)
2333
        spic=$shared
2334
    ;;
2335
    x86)
2336
        subarch="x86_32"
2337
        check_cc <<EOF && subarch="x86_64"
2338
        int test[(int)sizeof(char*) - 7];
2339
EOF
2340
        if test "$subarch" = "x86_64"; then
2341
            spic=$shared
2342
        fi
2343
    ;;
2344
esac
2345

    
2346
enable $subarch
2347
enabled spic && enable pic
2348

    
2349
# OS specific
2350
case $target_os in
2351
    haiku)
2352
        prefix_default="/boot/common"
2353
        network_extralibs="-lnetwork"
2354
        host_libs=
2355
        ;;
2356
    sunos)
2357
        FFSERVERLDFLAGS=""
2358
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2359
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2360
        network_extralibs="-lsocket -lnsl"
2361
        add_cppflags -D__EXTENSIONS__
2362
        nm_opts='-P -g'
2363
        ;;
2364
    netbsd)
2365
        disable symver
2366
        oss_indev_extralibs="-lossaudio"
2367
        oss_outdev_extralibs="-lossaudio"
2368
        ;;
2369
    openbsd)
2370
        enable malloc_aligned
2371
        # On OpenBSD 4.5. the compiler does not use PIC unless
2372
        # explicitly using -fPIC. Libav builds fine without PIC,
2373
        # however the generated executable will not do anything
2374
        # (simply quits with exit-code 1, no crash, no output).
2375
        # Thus explicitly enable PIC here.
2376
        enable pic
2377
        disable symver
2378
        SHFLAGS='-shared'
2379
        oss_indev_extralibs="-lossaudio"
2380
        oss_outdev_extralibs="-lossaudio"
2381
        ;;
2382
    dragonfly)
2383
        enable malloc_aligned
2384
        disable symver
2385
        ;;
2386
    freebsd)
2387
        enable malloc_aligned
2388
        ;;
2389
    bsd/os)
2390
        add_extralibs -lpoll -lgnugetopt
2391
        ;;
2392
    darwin)
2393
        enable malloc_aligned
2394
        gas="gas-preprocessor.pl $cc"
2395
        enabled ppc && add_asflags -force_cpusubtype_ALL
2396
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2397
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2398
        add_ldflags -Wl,-dynamic,-search_paths_first
2399
        SLIBSUF=".dylib"
2400
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2401
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2402
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2403
        objformat="macho"
2404
        enabled x86_64 && objformat="macho64"
2405
        enabled_any pic shared ||
2406
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2407
        ;;
2408
    mingw32*)
2409
        if test $target_os = "mingw32ce"; then
2410
            disable network
2411
        else
2412
            target_os=mingw32
2413
        fi
2414
        LIBTARGET=i386
2415
        if enabled x86_64; then
2416
            enable malloc_aligned
2417
            LIBTARGET="i386:x86-64"
2418
        elif enabled arm; then
2419
            LIBTARGET=arm-wince
2420
        fi
2421
        shlibdir_default="$bindir_default"
2422
        SLIBPREF=""
2423
        SLIBSUF=".dll"
2424
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2425
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2426
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2427
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2428
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2429
            install -d "$(LIBDIR)"; \
2430
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2431
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2432
        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'
2433
        objformat="win32"
2434
        dlltool="${cross_prefix}dlltool"
2435
        enable dos_paths
2436
        check_cflags -fno-common
2437
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2438
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2439
                die "ERROR: MinGW runtime version must be >= 3.15."
2440
        add_cppflags -U__STRICT_ANSI__
2441
        ;;
2442
    cygwin*)
2443
        target_os=cygwin
2444
        shlibdir_default="$bindir_default"
2445
        SLIBPREF="cyg"
2446
        SLIBSUF=".dll"
2447
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2448
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2449
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2450
        objformat="win32"
2451
        enable dos_paths
2452
        check_cflags -fno-common
2453
        ;;
2454
    *-dos|freedos|opendos)
2455
        network_extralibs="-lsocket"
2456
        objformat="coff"
2457
        enable dos_paths
2458
        ;;
2459
    linux)
2460
        add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
2461
        enable dv1394
2462
        ;;
2463
    irix*)
2464
        target_os=irix
2465
        ranlib="echo ignoring ranlib"
2466
        ;;
2467
    os/2*)
2468
        ln_s="cp -f"
2469
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2470
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2471
        FFSERVERLDFLAGS=""
2472
        LIBSUF="_s.a"
2473
        SLIBPREF=""
2474
        SLIBSUF=".dll"
2475
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2476
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2477
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2478
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2479
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2480
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2481
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2482
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2483
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2484
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2485
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2486
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2487
        enable dos_paths
2488
        ;;
2489
    gnu/kfreebsd)
2490
        ;;
2491
    gnu)
2492
        ;;
2493
    qnx)
2494
        add_cppflags -D_QNX_SOURCE
2495
        network_extralibs="-lsocket"
2496
        ;;
2497
    symbian)
2498
        SLIBSUF=".dll"
2499
        enable dos_paths
2500
        add_cflags --include=$sysinclude/gcce/gcce.h
2501
        ;;
2502
    none)
2503
        ;;
2504
    *)
2505
        die "Unknown OS '$target_os'."
2506
        ;;
2507
esac
2508

    
2509
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2510

    
2511
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2512

    
2513
set_default $PATHS_LIST
2514

    
2515
# we need to build at least one lib type
2516
if ! enabled_any static shared; then
2517
    cat <<EOF
2518
At least one library type must be built.
2519
Specify --enable-static to build the static libraries or --enable-shared to
2520
build the shared libraries as well. To only build the shared libraries specify
2521
--disable-static in addition to --enable-shared.
2522
EOF
2523
    exit 1;
2524
fi
2525

    
2526
disabled static && LIBNAME=""
2527

    
2528
die_license_disabled() {
2529
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2530
}
2531

    
2532
die_license_disabled gpl libx264
2533
die_license_disabled gpl libxavs
2534
die_license_disabled gpl libxvid
2535
die_license_disabled gpl x11grab
2536

    
2537
die_license_disabled nonfree libfaac
2538

    
2539
die_license_disabled version3 libopencore_amrnb
2540
die_license_disabled version3 libopencore_amrwb
2541
die_license_disabled version3 libvo_aacenc
2542
die_license_disabled version3 libvo_amrwbenc
2543

    
2544
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2545

    
2546
disabled optimizations || check_cflags -fomit-frame-pointer
2547

    
2548
enable_pic() {
2549
    enable pic
2550
    add_cppflags -DPIC
2551
    add_cflags   -fPIC
2552
    add_asflags  -fPIC
2553
}
2554

    
2555
enabled pic && enable_pic
2556

    
2557
check_cc <<EOF || die "Symbol mangling check failed."
2558
int ff_extern;
2559
EOF
2560
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2561
extern_prefix=${sym%%ff_extern*}
2562

    
2563
check_cc <<EOF && enable inline_asm
2564
void foo(void) { __asm__ volatile ("" ::); }
2565
EOF
2566

    
2567
_restrict=
2568
for restrict_keyword in restrict __restrict__ __restrict; do
2569
    check_cc <<EOF && _restrict=$restrict_keyword && break
2570
void foo(char * $restrict_keyword p);
2571
EOF
2572
done
2573

    
2574
check_cc <<EOF && enable attribute_packed
2575
struct { int x; } __attribute__((packed)) x;
2576
EOF
2577

    
2578
check_cc <<EOF && enable attribute_may_alias
2579
union { int x; } __attribute__((may_alias)) x;
2580
EOF
2581

    
2582
check_cc <<EOF || die "endian test failed"
2583
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2584
EOF
2585
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2586

    
2587
if enabled alpha; then
2588

    
2589
    check_cflags -mieee
2590

    
2591
elif enabled arm; then
2592

    
2593
    check_cflags -marm
2594
    nogas=die
2595

    
2596
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2597
        enable vfp_args
2598
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2599
        case "${cross_prefix:-$cc}" in
2600
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2601
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2602
__asm__ (".eabi_attribute 28, 1");
2603
int main(void) { return 0; }
2604
EOF
2605
        esac
2606
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2607
    fi
2608

    
2609
    # We have to check if pld is a nop and disable it.
2610
    check_asm pld '"pld [r0]"'
2611

    
2612
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2613
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2614
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2615
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2616
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2617
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2618

    
2619
    enabled_all armv6t2 shared !pic && enable_pic
2620

    
2621
elif enabled mips; then
2622

    
2623
    check_asm loongson '"dmult.g $1, $2, $3"'
2624
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2625

    
2626
elif enabled ppc; then
2627

    
2628
    enable local_aligned_8 local_aligned_16
2629

    
2630
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2631
    check_asm ibm_asm   '"add 0, 0, 0"'
2632
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2633
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2634

    
2635
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2636
    if enabled altivec; then
2637
        nogas=warn
2638
        check_cflags -maltivec -mabi=altivec &&
2639
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2640
        check_cflags -faltivec
2641

    
2642
        # check if our compiler supports Motorola AltiVec C API
2643
        check_cc <<EOF || disable altivec
2644
$inc_altivec_h
2645
int main(void) {
2646
    vector signed int v1, v2, v3;
2647
    v1 = vec_add(v2,v3);
2648
    return 0;
2649
}
2650
EOF
2651

    
2652
        # check if our compiler supports braces for vector declarations
2653
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2654
$inc_altivec_h
2655
int main (void) { (vector int) {1}; return 0; }
2656
EOF
2657
    fi
2658

    
2659
elif enabled sparc; then
2660

    
2661
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2662
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2663

    
2664
elif enabled x86; then
2665

    
2666
    enable local_aligned_8 local_aligned_16
2667

    
2668
    # check whether EBP is available on x86
2669
    # As 'i' is stored on the stack, this program will crash
2670
    # if the base pointer is used to access it because the
2671
    # base pointer is cleared in the inline assembly code.
2672
    check_exec_crash <<EOF && enable ebp_available
2673
    volatile int i=0;
2674
    __asm__ volatile (
2675
        "xorl %%ebp, %%ebp"
2676
    ::: "%ebp");
2677
    return i;
2678
EOF
2679

    
2680
    # check whether EBX is available on x86
2681
    check_asm ebx_available '""::"b"(0)' &&
2682
        check_asm ebx_available '"":::"%ebx"'
2683

    
2684
    # check whether xmm clobbers are supported
2685
    check_asm xmm_clobbers '"":::"%xmm0"'
2686

    
2687
    # check whether more than 10 operands are supported
2688
    check_cc <<EOF && enable ten_operands
2689
int main(void) {
2690
    int x=0;
2691
    __asm__ volatile(
2692
        ""
2693
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2694
    );
2695
    return 0;
2696
}
2697
EOF
2698

    
2699
    # check whether binutils is new enough to compile SSSE3/MMX2
2700
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2701
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2702

    
2703
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2704

    
2705
    if ! disabled_any asm mmx yasm; then
2706
        if check_cmd $yasmexe --version; then
2707
            enabled x86_64 && yasm_extra="-m amd64"
2708
            yasm_debug="-g dwarf2"
2709
        elif check_cmd nasm -v; then
2710
            yasmexe=nasm
2711
            yasm_debug="-g -F dwarf"
2712
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2713
        fi
2714

    
2715
        YASMFLAGS="-f $objformat $yasm_extra"
2716
        enabled pic               && append YASMFLAGS "-DPIC"
2717
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2718
        case "$objformat" in
2719
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2720
        esac
2721

    
2722
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2723
            die "yasm not found, use --disable-yasm for a crippled build"
2724
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2725
    fi
2726

    
2727
    case "$cpu" in
2728
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2729
            disable fast_clz
2730
        ;;
2731
    esac
2732

    
2733
fi
2734

    
2735
if enabled asm; then
2736
    as=${gas:=$as}
2737
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2738
        $nogas "GNU assembler not found, install gas-preprocessor"
2739
fi
2740

    
2741
check_ldflags -Wl,--as-needed
2742

    
2743
if check_func dlopen; then
2744
    ldl=
2745
elif check_func dlopen -ldl; then
2746
    ldl=-ldl
2747
fi
2748

    
2749
if enabled network; then
2750
    check_type "sys/types.h sys/socket.h" socklen_t
2751
    check_type netdb.h "struct addrinfo"
2752
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2753
    check_type netinet/in.h "struct sockaddr_in6"
2754
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2755
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2756
    # Prefer arpa/inet.h over winsock2
2757
    if check_header arpa/inet.h ; then
2758
        check_func closesocket
2759
    elif check_header winsock2.h ; then
2760
        check_func_headers winsock2.h closesocket -lws2 && \
2761
            network_extralibs="-lws2" || \
2762
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2763
            network_extralibs="-lws2_32"; }
2764
        check_type ws2tcpip.h socklen_t
2765
        check_type ws2tcpip.h "struct addrinfo"
2766
        check_type ws2tcpip.h "struct ipv6_mreq"
2767
        check_type ws2tcpip.h "struct sockaddr_in6"
2768
        check_type ws2tcpip.h "struct sockaddr_storage"
2769
        check_struct winsock2.h "struct sockaddr" sa_len
2770
    else
2771
        disable network
2772
    fi
2773
fi
2774

    
2775
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2776
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2777

    
2778
check_func  fcntl
2779
check_func  fork
2780
check_func  getaddrinfo $network_extralibs
2781
check_func  gethrtime
2782
check_func  getrusage
2783
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2784
check_func  inet_aton $network_extralibs
2785
check_func  isatty
2786
check_func  localtime_r
2787
check_func  ${malloc_prefix}memalign            && enable memalign
2788
check_func  mkstemp
2789
check_func  mmap
2790
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2791
check_func  setrlimit
2792
check_func  strerror_r
2793
check_func  strtok_r
2794
check_func_headers io.h setmode
2795
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2796
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2797
check_func_headers windows.h GetProcessTimes
2798
check_func_headers windows.h MapViewOfFile
2799
check_func_headers windows.h VirtualAlloc
2800

    
2801
check_header dlfcn.h
2802
check_header dxva2api.h
2803
check_header malloc.h
2804
check_header poll.h
2805
check_header sys/mman.h
2806
check_header sys/resource.h
2807
check_header sys/select.h
2808
check_header vdpau/vdpau.h
2809
check_header vdpau/vdpau_x11.h
2810
check_header X11/extensions/XvMClib.h
2811

    
2812
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2813

    
2814
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2815
     enabled_any $need_memalign ; then
2816
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2817
fi
2818

    
2819
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2820
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2821

    
2822
# check for some common methods of building with pthread support
2823
# do this before the optional library checks as some of them require pthreads
2824
if ! disabled pthreads && ! enabled w32threads; then
2825
    enable pthreads
2826
    if check_func pthread_create; then
2827
        :
2828
    elif check_func pthread_create -pthread; then
2829
        add_cflags -pthread
2830
        add_extralibs -pthread
2831
    elif check_func pthread_create -pthreads; then
2832
        add_cflags -pthreads
2833
        add_extralibs -pthreads
2834
    elif check_func pthread_create -lpthreadGC2; then
2835
        add_extralibs -lpthreadGC2
2836
    elif ! check_lib pthread.h pthread_create -lpthread; then
2837
        disable pthreads
2838
    fi
2839
fi
2840

    
2841
for thread in $THREADS_LIST; do
2842
    if enabled $thread; then
2843
        test -n "$thread_type" &&
2844
            die "ERROR: Only one thread type must be selected." ||
2845
            thread_type="$thread"
2846
    fi
2847
done
2848

    
2849
check_lib math.h sin -lm && LIBM="-lm"
2850
enabled vaapi && require vaapi va/va.h vaInitialize -lva
2851

    
2852
check_mathfunc exp2
2853
check_mathfunc exp2f
2854
check_mathfunc llrint
2855
check_mathfunc llrintf
2856
check_mathfunc log2
2857
check_mathfunc log2f
2858
check_mathfunc lrint
2859
check_mathfunc lrintf
2860
check_mathfunc round
2861
check_mathfunc roundf
2862
check_mathfunc trunc
2863
check_mathfunc truncf
2864

    
2865
# these are off by default, so fail if requested and not available
2866
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2867
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2868
enabled libdirac   && require_pkg_config dirac                          \
2869
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2870
    "dirac_decoder_init dirac_encoder_init"
2871
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2872
enabled libfreetype && require_pkg_config freetype2 "ft2build.h freetype/freetype.h" FT_Init_FreeType
2873
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2874
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2875
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2876
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2877
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2878
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2879
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2880
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2881
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2882
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2883
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2884
enabled libvo_aacenc && require libvo_aacenc vo-aacenc/voAAC.h voGetAACEncAPI -lvo-aacenc
2885
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
2886
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2887
enabled libvpx     && {
2888
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2889
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2890
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2891
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2892
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2893
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2894
                        die "ERROR: libx264 version must be >= 0.99."; }
2895
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2896
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2897
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2898

    
2899
# libdc1394 check
2900
if enabled libdc1394; then
2901
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2902
        enable libdc1394_2; } ||
2903
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2904
        enable libdc1394_1; } ||
2905
    die "ERROR: No version of libdc1394 found "
2906
fi
2907

    
2908
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2909
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2910
    enable sdl &&
2911
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2912
fi
2913

    
2914
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2915

    
2916
check_header linux/fb.h
2917
check_header linux/videodev.h
2918
check_header linux/videodev2.h
2919
check_header sys/videoio.h
2920

    
2921
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2922
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2923
# w32api 3.12 had it defined wrong
2924
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2925

    
2926
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2927
{ check_header dev/bktr/ioctl_meteor.h &&
2928
  check_header dev/bktr/ioctl_bt848.h; } ||
2929
{ check_header machine/ioctl_meteor.h &&
2930
  check_header machine/ioctl_bt848.h; } ||
2931
{ check_header dev/video/meteor/ioctl_meteor.h &&
2932
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2933
check_header dev/ic/bt8xx.h
2934

    
2935
check_header sndio.h
2936
check_header sys/soundcard.h
2937
check_header soundcard.h
2938

    
2939
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2940

    
2941
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2942

    
2943
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2944

    
2945
enabled x11grab                         &&
2946
check_header X11/Xlib.h                 &&
2947
check_header X11/extensions/XShm.h      &&
2948
check_header X11/extensions/Xfixes.h    &&
2949
check_func XOpenDisplay -lX11           &&
2950
check_func XShmCreateImage -lX11 -lXext &&
2951
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2952

    
2953
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2954
check_cpp_condition \
2955
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2956
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2957
      disable vdpau; }
2958
fi
2959

    
2960
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2961

    
2962
# add some useful compiler flags if supported
2963
check_cflags -Wdeclaration-after-statement
2964
check_cflags -Wall
2965
check_cflags -Wno-parentheses
2966
check_cflags -Wno-switch
2967
check_cflags -Wdisabled-optimization
2968
check_cflags -Wpointer-arith
2969
check_cflags -Wredundant-decls
2970
check_cflags -Wno-pointer-sign
2971
check_cflags -Wcast-qual
2972
check_cflags -Wwrite-strings
2973
check_cflags -Wtype-limits
2974
check_cflags -Wundef
2975
check_cflags -Wmissing-prototypes
2976
enabled extra_warnings && check_cflags -Winline
2977

    
2978
# add some linker flags
2979
check_ldflags -Wl,--warn-common
2980
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'
2981
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2982

    
2983
echo "X{};" > $TMPV
2984
if test_ldflags -Wl,--version-script,$TMPV; then
2985
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2986
    check_cc <<EOF && enable symver_asm_label
2987
void ff_foo(void) __asm__ ("av_foo@VERSION");
2988
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2989
EOF
2990
    check_cc <<EOF && enable symver_gnu_asm
2991
__asm__(".symver ff_foo,av_foo@VERSION");
2992
void ff_foo(void) {}
2993
EOF
2994
fi
2995

    
2996
if enabled small; then
2997
    add_cflags $size_cflags
2998
    optimizations="small"
2999
elif enabled optimizations; then
3000
    add_cflags $speed_cflags
3001
else
3002
    add_cflags $noopt_cflags
3003
fi
3004
check_cflags -fno-math-errno
3005
check_cflags -fno-signed-zeros
3006

    
3007
if enabled icc; then
3008
    # Just warnings, no remarks
3009
    check_cflags -w1
3010
    # -wd: Disable following warnings
3011
    # 144, 167, 556: -Wno-pointer-sign
3012
    # 1292: attribute "foo" ignored
3013
    # 10006: ignoring unknown option -fno-signed-zeros
3014
    # 10148: ignoring unknown option -Wno-parentheses
3015
    # 10156: ignoring option '-W'; no argument required
3016
    check_cflags -wd144,167,556,1292,10006,10148,10156
3017
    # 11030: Warning unknown option --as-needed
3018
    # 10156: ignoring option '-export'; no argument required
3019
    check_ldflags -wd10156,11030
3020
    # Allow to compile with optimizations
3021
    check_ldflags -march=$cpu
3022
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3023
    enable ebp_available
3024
    if enabled x86_32; then
3025
        test ${icc_version%%.*} -ge 11 && \
3026
            check_cflags -falign-stack=maintain-16-byte || \
3027
            disable aligned_stack
3028
    fi
3029
elif enabled ccc; then
3030
    # disable some annoying warnings
3031
    add_cflags -msg_disable cvtu32to64
3032
    add_cflags -msg_disable embedcomment
3033
    add_cflags -msg_disable needconstext
3034
    add_cflags -msg_disable nomainieee
3035
    add_cflags -msg_disable ptrmismatch1
3036
    add_cflags -msg_disable unreachcode
3037
elif enabled gcc; then
3038
    check_cflags -fno-tree-vectorize
3039
    check_cflags -Werror=implicit-function-declaration
3040
    check_cflags -Werror=missing-prototypes
3041
elif enabled llvm_gcc; then
3042
    check_cflags -mllvm -stack-alignment=16
3043
elif enabled clang; then
3044
    check_cflags -mllvm -stack-alignment=16
3045
    check_cflags -Qunused-arguments
3046
elif enabled armcc; then
3047
    # 2523: use of inline assembler is deprecated
3048
    add_cflags -W${armcc_opt},--diag_suppress=2523
3049
    add_cflags -W${armcc_opt},--diag_suppress=1207
3050
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3051
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3052
elif enabled tms470; then
3053
    add_cflags -pds=824 -pds=837
3054
elif enabled pathscale; then
3055
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3056
fi
3057

    
3058
enabled_any $THREADS_LIST      && enable threads
3059

    
3060
check_deps $CONFIG_LIST       \
3061
           $CONFIG_EXTRA      \
3062
           $HAVE_LIST         \
3063
           $DECODER_LIST      \
3064
           $ENCODER_LIST      \
3065
           $HWACCEL_LIST      \
3066
           $PARSER_LIST       \
3067
           $BSF_LIST          \
3068
           $DEMUXER_LIST      \
3069
           $MUXER_LIST        \
3070
           $FILTER_LIST       \
3071
           $INDEV_LIST        \
3072
           $OUTDEV_LIST       \
3073
           $PROTOCOL_LIST     \
3074
           $ACODEC_TESTS      \
3075
           $VCODEC_TESTS      \
3076
           $LAVF_TESTS        \
3077
           $LAVFI_TESTS       \
3078
           $SEEK_TESTS        \
3079

    
3080
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3081

    
3082
echo "install prefix            $prefix"
3083
echo "source path               $source_path"
3084
echo "C compiler                $cc"
3085
echo "ARCH                      $arch ($cpu)"
3086
if test "$build_suffix" != ""; then
3087
    echo "build suffix              $build_suffix"
3088
fi
3089
if test "$extra_version" != ""; then
3090
    echo "version string suffix     $extra_version"
3091
fi
3092
echo "big-endian                ${bigendian-no}"
3093
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3094
if enabled x86; then
3095
    echo "yasm                      ${yasm-no}"
3096
    echo "MMX enabled               ${mmx-no}"
3097
    echo "MMX2 enabled              ${mmx2-no}"
3098
    echo "3DNow! enabled            ${amd3dnow-no}"
3099
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3100
    echo "SSE enabled               ${sse-no}"
3101
    echo "SSSE3 enabled             ${ssse3-no}"
3102
    echo "CMOV enabled              ${cmov-no}"
3103
    echo "CMOV is fast              ${fast_cmov-no}"
3104
    echo "EBX available             ${ebx_available-no}"
3105
    echo "EBP available             ${ebp_available-no}"
3106
    echo "10 operands supported     ${ten_operands-no}"
3107
fi
3108
if enabled arm; then
3109
    echo "ARMv5TE enabled           ${armv5te-no}"
3110
    echo "ARMv6 enabled             ${armv6-no}"
3111
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3112
    echo "ARM VFP enabled           ${armvfp-no}"
3113
    echo "IWMMXT enabled            ${iwmmxt-no}"
3114
    echo "NEON enabled              ${neon-no}"
3115
fi
3116
if enabled mips; then
3117
    echo "MMI enabled               ${mmi-no}"
3118
fi
3119
if enabled ppc; then
3120
    echo "AltiVec enabled           ${altivec-no}"
3121
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3122
    echo "dcbzl available           ${dcbzl-no}"
3123
fi
3124
if enabled sparc; then
3125
    echo "VIS enabled               ${vis-no}"
3126
fi
3127
echo "debug symbols             ${debug-no}"
3128
echo "optimizations             ${optimizations-no}"
3129
echo "static                    ${static-no}"
3130
echo "shared                    ${shared-no}"
3131
echo "postprocessing support    ${postproc-no}"
3132
echo "new filter support        ${avfilter-no}"
3133
echo "network support           ${network-no}"
3134
echo "threading support         ${thread_type-no}"
3135
echo "SDL support               ${sdl-no}"
3136
echo "Sun medialib support      ${mlib-no}"
3137
echo "AVISynth enabled          ${avisynth-no}"
3138
echo "frei0r enabled            ${frei0r-no}"
3139
echo "libdc1394 support         ${libdc1394-no}"
3140
echo "libdirac enabled          ${libdirac-no}"
3141
echo "libfaac enabled           ${libfaac-no}"
3142
echo "libgsm enabled            ${libgsm-no}"
3143
echo "libmp3lame enabled        ${libmp3lame-no}"
3144
echo "libnut enabled            ${libnut-no}"
3145
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3146
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3147
echo "libopencv support         ${libopencv-no}"
3148
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3149
echo "librtmp enabled           ${librtmp-no}"
3150
echo "libschroedinger enabled   ${libschroedinger-no}"
3151
echo "libspeex enabled          ${libspeex-no}"
3152
echo "libtheora enabled         ${libtheora-no}"
3153
echo "libva enabled             ${vaapi-no}"
3154
echo "libvo-aacenc support      ${libvo_aacenc-no}"
3155
echo "libvo-amrwbenc support    ${libvo_amrwbenc-no}"
3156
echo "libvorbis enabled         ${libvorbis-no}"
3157
echo "libvpx enabled            ${libvpx-no}"
3158
echo "libx264 enabled           ${libx264-no}"
3159
echo "libxavs enabled           ${libxavs-no}"
3160
echo "libxvid enabled           ${libxvid-no}"
3161
echo "zlib enabled              ${zlib-no}"
3162
echo "bzlib enabled             ${bzlib-no}"
3163
echo
3164

    
3165
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3166
    echo "Enabled ${type}s:"
3167
    eval list=\$$(toupper $type)_LIST
3168
    print_enabled '_*' $list | sort | pr -r -3 -t
3169
    echo
3170
done
3171

    
3172
license="LGPL version 2.1 or later"
3173
if enabled nonfree; then
3174
    license="nonfree and unredistributable"
3175
elif enabled gplv3; then
3176
    license="GPL version 3 or later"
3177
elif enabled lgplv3; then
3178
    license="LGPL version 3 or later"
3179
elif enabled gpl; then
3180
    license="GPL version 2 or later"
3181
fi
3182

    
3183
echo "License: $license"
3184

    
3185
echo "Creating config.mak and config.h..."
3186

    
3187
# build tree in object directory if source path is different from current one
3188
if enabled source_path_used; then
3189
    DIRS="
3190
        doc
3191
        libavcodec
3192
        libavcodec/$arch
3193
        libavdevice
3194
        libavfilter
3195
        libavfilter/$arch
3196
        libavformat
3197
        libavutil
3198
        libavutil/$arch
3199
        libpostproc
3200
        libswscale
3201
        libswscale/$arch
3202
        tests
3203
        tools
3204
    "
3205
    FILES="
3206
        Makefile
3207
        common.mak
3208
        subdir.mak
3209
        doc/texi2pod.pl
3210
        libavcodec/Makefile
3211
        libavcodec/${arch}/Makefile
3212
        libavdevice/Makefile
3213
        libavfilter/Makefile
3214
        libavfilter/${arch}/Makefile
3215
        libavformat/Makefile
3216
        libavutil/Makefile
3217
        libpostproc/Makefile
3218
        libswscale/Makefile
3219
    "
3220
    map 'mkdir -p $v' $DIRS;
3221
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3222
fi
3223

    
3224
config_files="$TMPH config.mak"
3225

    
3226
cat > config.mak <<EOF
3227
# Automatically generated by configure - do not modify!
3228
ifndef LIBAV_CONFIG_MAK
3229
LIBAV_CONFIG_MAK=1
3230
LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3231
prefix=$prefix
3232
LIBDIR=\$(DESTDIR)$libdir
3233
SHLIBDIR=\$(DESTDIR)$shlibdir
3234
INCDIR=\$(DESTDIR)$incdir
3235
BINDIR=\$(DESTDIR)$bindir
3236
DATADIR=\$(DESTDIR)$datadir
3237
MANDIR=\$(DESTDIR)$mandir
3238
SRC_PATH="$source_path"
3239
SRC_PATH_BARE=$source_path
3240
BUILD_ROOT="$PWD"
3241
CC_IDENT=$cc_ident
3242
ARCH=$arch
3243
CC=$cc
3244
AS=$as
3245
LD=$ld
3246
DEPCC=$dep_cc
3247
YASM=$yasmexe
3248
YASMDEP=$yasmexe
3249
AR=$ar
3250
RANLIB=$ranlib
3251
LN_S=$ln_s
3252
CPPFLAGS=$CPPFLAGS
3253
CFLAGS=$CFLAGS
3254
ASFLAGS=$ASFLAGS
3255
CC_O=$CC_O
3256
DLLTOOL=$dlltool
3257
LDFLAGS=$LDFLAGS
3258
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3259
SHFLAGS=$SHFLAGS
3260
YASMFLAGS=$YASMFLAGS
3261
BUILDSUF=$build_suffix
3262
FULLNAME=$FULLNAME
3263
LIBPREF=$LIBPREF
3264
LIBSUF=$LIBSUF
3265
LIBNAME=$LIBNAME
3266
SLIBPREF=$SLIBPREF
3267
SLIBSUF=$SLIBSUF
3268
EXESUF=$EXESUF
3269
EXTRA_VERSION=$extra_version
3270
DEPFLAGS=$DEPFLAGS
3271
CCDEP=$CCDEP
3272
ASDEP=$ASDEP
3273
CC_DEPFLAGS=$CC_DEPFLAGS
3274
AS_DEPFLAGS=$AS_DEPFLAGS
3275
HOSTCC=$host_cc
3276
HOSTCFLAGS=$host_cflags
3277
HOSTEXESUF=$HOSTEXESUF
3278
HOSTLDFLAGS=$host_ldflags
3279
HOSTLIBS=$host_libs
3280
TARGET_EXEC=$target_exec
3281
TARGET_PATH=$target_path
3282
SDL_LIBS=$sdl_libs
3283
SDL_CFLAGS=$sdl_cflags
3284
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3285
EXTRALIBS=$extralibs
3286
INSTALL=install
3287
LIBTARGET=${LIBTARGET}
3288
SLIBNAME=${SLIBNAME}
3289
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3290
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3291
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3292
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3293
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3294
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3295
SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3296
EOF
3297

    
3298
get_version(){
3299
    name=$1
3300
    file=$source_path/$2
3301
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3302
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3303
    lcname=$(tolower $name)
3304
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3305
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3306
}
3307

    
3308
get_version LIBSWSCALE  libswscale/swscale.h
3309
get_version LIBPOSTPROC libpostproc/postprocess.h
3310
get_version LIBAVCODEC  libavcodec/version.h
3311
get_version LIBAVDEVICE libavdevice/avdevice.h
3312
get_version LIBAVFORMAT libavformat/version.h
3313
get_version LIBAVUTIL   libavutil/avutil.h
3314
get_version LIBAVFILTER libavfilter/avfilter.h
3315

    
3316
cat > $TMPH <<EOF
3317
/* Automatically generated by configure - do not modify! */
3318
#ifndef LIBAV_CONFIG_H
3319
#define LIBAV_CONFIG_H
3320
#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3321
#define LIBAV_LICENSE "$(c_escape $license)"
3322
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3323
#define CC_TYPE "$cc_type"
3324
#define CC_VERSION $cc_version
3325
#define restrict $_restrict
3326
#define EXTERN_PREFIX "${extern_prefix}"
3327
#define EXTERN_ASM ${extern_prefix}
3328
#define SLIBSUF "$SLIBSUF"
3329
EOF
3330

    
3331
test -n "$malloc_prefix" &&
3332
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3333

    
3334
if enabled small || disabled optimizations; then
3335
    echo "#undef  av_always_inline"  >> $TMPH
3336
    if enabled small; then
3337
        echo "#define av_always_inline inline"  >> $TMPH
3338
    else
3339
        echo "#define av_always_inline av_unused"  >> $TMPH
3340
    fi
3341
fi
3342

    
3343
if enabled yasm; then
3344
    append config_files $TMPASM
3345
    printf '' >$TMPASM
3346
fi
3347

    
3348
print_config ARCH_   "$config_files" $ARCH_LIST
3349
print_config HAVE_   "$config_files" $HAVE_LIST
3350
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3351
                                     $CONFIG_EXTRA      \
3352
                                     $DECODER_LIST      \
3353
                                     $ENCODER_LIST      \
3354
                                     $HWACCEL_LIST      \
3355
                                     $PARSER_LIST       \
3356
                                     $BSF_LIST          \
3357
                                     $DEMUXER_LIST      \
3358
                                     $MUXER_LIST        \
3359
                                     $FILTER_LIST       \
3360
                                     $PROTOCOL_LIST     \
3361
                                     $INDEV_LIST        \
3362
                                     $OUTDEV_LIST       \
3363

    
3364
cat >>config.mak <<EOF
3365
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3366
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3367
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3368
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3369
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3370
EOF
3371

    
3372
echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3373
echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3374

    
3375
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3376
cp_if_changed $TMPH config.h
3377
touch .config
3378

    
3379
enabled yasm && cp_if_changed $TMPASM config.asm
3380

    
3381
cat > $TMPH <<EOF
3382
/* Generated by ffconf */
3383
#ifndef AVUTIL_AVCONFIG_H
3384
#define AVUTIL_AVCONFIG_H
3385
EOF
3386

    
3387
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3388

    
3389
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3390

    
3391
cp_if_changed $TMPH libavutil/avconfig.h
3392

    
3393
test -n "$WARNINGS" && printf "\n$WARNINGS"
3394

    
3395
# build pkg-config files
3396

    
3397
pkgconfig_generate(){
3398
name=$1
3399
shortname=${name#lib}${build_suffix}
3400
comment=$2
3401
version=$3
3402
libs=$4
3403
requires=$5
3404
enabled ${name#lib} || return 0
3405
cat <<EOF > $name/$name.pc
3406
prefix=$prefix
3407
exec_prefix=\${prefix}
3408
libdir=$libdir
3409
includedir=$incdir
3410

    
3411
Name: $name
3412
Description: $comment
3413
Version: $version
3414
Requires: $(enabled shared || echo $requires)
3415
Requires.private: $(enabled shared && echo $requires)
3416
Conflicts:
3417
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3418
Libs.private: $(enabled shared && echo $libs)
3419
Cflags: -I\${includedir}
3420
EOF
3421
cat <<EOF > $name/$name-uninstalled.pc
3422
prefix=
3423
exec_prefix=
3424
libdir=\${pcfiledir}
3425
includedir=${source_path}
3426

    
3427
Name: $name
3428
Description: $comment
3429
Version: $version
3430
Requires: $requires
3431
Conflicts:
3432
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3433
Cflags: -I\${includedir}
3434
EOF
3435
}
3436

    
3437
pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION" "$LIBM"
3438
pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
3439
pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3440
pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3441
pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3442
pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"
3443
pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "$LIBM" "libavutil = $LIBAVUTIL_VERSION"