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#!/bin/sh
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#
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# FFmpeg 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
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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 FFMPEG, 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 FFmpeg."
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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

    
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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]
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  --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]
82
  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
85
  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
87
  --disable-avdevice       disable libavdevice build
88
  --disable-avcodec        disable libavcodec build
89
  --disable-avformat       disable libavformat build
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  --disable-swscale        disable libswscale build
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  --enable-postproc        enable GPLed postprocessing support [no]
92
  --disable-avfilter       disable video filter support [no]
93
  --disable-pthreads       disable pthreads [auto]
94
  --enable-w32threads      use Win32 threads [no]
95
  --enable-x11grab         enable X11 grabbing [no]
96
  --disable-network        disable network support [no]
97
  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
98
  --enable-gray            enable full grayscale support (slower color)
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  --disable-swscale-alpha  disable alpha channel support in swscale
100
  --disable-fastdiv        disable table-based division
101
  --enable-small           optimize for size instead of speed
102
  --disable-aandct         disable AAN DCT code
103
  --disable-dct            disable DCT code
104
  --disable-fft            disable FFT code
105
  --disable-golomb         disable Golomb code
106
  --disable-huffman        disable Huffman code
107
  --disable-lpc            disable LPC code
108
  --disable-mdct           disable MDCT code
109
  --disable-rdft           disable RDFT code
110
  --disable-vaapi          disable VAAPI code
111
  --disable-vdpau          disable VDPAU code
112
  --disable-dxva2          disable DXVA2 code
113
  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
114
  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
115
  --enable-memalign-hack   emulate memalign, interferes with memory debuggers
116
  --disable-everything     disable all components listed below
117
  --disable-encoder=NAME   disable encoder NAME
118
  --enable-encoder=NAME    enable encoder NAME
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  --disable-encoders       disable all encoders
120
  --disable-decoder=NAME   disable decoder NAME
121
  --enable-decoder=NAME    enable decoder NAME
122
  --disable-decoders       disable all decoders
123
  --disable-hwaccel=NAME   disable hwaccel NAME
124
  --enable-hwaccel=NAME    enable hwaccel NAME
125
  --disable-hwaccels       disable all hwaccels
126
  --disable-muxer=NAME     disable muxer NAME
127
  --enable-muxer=NAME      enable muxer NAME
128
  --disable-muxers         disable all muxers
129
  --disable-demuxer=NAME   disable demuxer NAME
130
  --enable-demuxer=NAME    enable demuxer NAME
131
  --disable-demuxers       disable all demuxers
132
  --enable-parser=NAME     enable parser NAME
133
  --disable-parser=NAME    disable parser NAME
134
  --disable-parsers        disable all parsers
135
  --enable-bsf=NAME        enable bitstream filter NAME
136
  --disable-bsf=NAME       disable bitstream filter NAME
137
  --disable-bsfs           disable all bitstream filters
138
  --enable-protocol=NAME   enable protocol NAME
139
  --disable-protocol=NAME  disable protocol NAME
140
  --disable-protocols      disable all protocols
141
  --disable-indev=NAME     disable input device NAME
142
  --disable-outdev=NAME    disable output device NAME
143
  --disable-indevs         disable input devices
144
  --disable-outdevs        disable output devices
145
  --disable-devices        disable all devices
146
  --enable-filter=NAME     enable filter NAME
147
  --disable-filter=NAME    disable filter NAME
148
  --disable-filters        disable all filters
149
  --list-decoders          show all available decoders
150
  --list-encoders          show all available encoders
151
  --list-hwaccels          show all available hardware accelerators
152
  --list-muxers            show all available muxers
153
  --list-demuxers          show all available demuxers
154
  --list-parsers           show all available parsers
155
  --list-protocols         show all available protocols
156
  --list-bsfs              show all available bitstream filters
157
  --list-indevs            show all available input devices
158
  --list-outdevs           show all available output devices
159
  --list-filters           show all available filters
160

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

    
192
Advanced options (experts only):
193
  --source-path=PATH       path to source code [$source_path]
194
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
195
  --enable-cross-compile   assume a cross-compiler is used
196
  --sysroot=PATH           root of cross-build tree
197
  --sysinclude=PATH        location of cross-build system headers
198
  --target-os=OS           compiler targets OS [$target_os]
199
  --target-exec=CMD        command to run executables on target
200
  --target-path=DIR        path to view of build directory on target
201
  --nm=NM                  use nm tool
202
  --ar=AR                  use archive tool AR [$ar_default]
203
  --as=AS                  use assembler AS [$as_default]
204
  --cc=CC                  use C compiler CC [$cc_default]
205
  --ld=LD                  use linker LD
206
  --host-cc=HOSTCC         use host C compiler HOSTCC
207
  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
208
  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
209
  --host-libs=HLIBS        use libs HLIBS when linking for host
210
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
211
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
212
  --extra-libs=ELIBS       add ELIBS [$ELIBS]
213
  --extra-version=STRING   version string suffix []
214
  --build-suffix=SUFFIX    library name suffix []
215
  --arch=ARCH              select architecture [$arch]
216
  --cpu=CPU                select the minimum required CPU (affects
217
                           instruction selection, may crash on older CPUs)
218
  --disable-asm            disable all assembler optimizations
219
  --disable-altivec        disable AltiVec optimizations
220
  --disable-amd3dnow       disable 3DNow! optimizations
221
  --disable-amd3dnowext    disable 3DNow! extended optimizations
222
  --disable-mmx            disable MMX optimizations
223
  --disable-mmx2           disable MMX2 optimizations
224
  --disable-sse            disable SSE optimizations
225
  --disable-ssse3          disable SSSE3 optimizations
226
  --disable-avx            disable AVX optimizations
227
  --disable-armv5te        disable armv5te optimizations
228
  --disable-armv6          disable armv6 optimizations
229
  --disable-armv6t2        disable armv6t2 optimizations
230
  --disable-armvfp         disable ARM VFP optimizations
231
  --disable-iwmmxt         disable iwmmxt optimizations
232
  --disable-mmi            disable MMI optimizations
233
  --disable-neon           disable neon optimizations
234
  --disable-vis            disable VIS optimizations
235
  --disable-yasm           disable use of yasm assembler
236
  --enable-pic             build position-independent code
237
  --malloc-prefix=PFX      prefix malloc and related names with PFX
238
  --enable-sram            allow use of on-chip SRAM
239
  --disable-symver         disable symbol versioning
240

    
241
Developer options (useful when working on FFmpeg itself):
242
  --disable-debug          disable debugging symbols
243
  --enable-debug=LEVEL     set the debug level [$debuglevel]
244
  --disable-optimizations  disable compiler optimizations
245
  --enable-extra-warnings  enable more compiler warnings
246
  --disable-stripping      disable stripping of executables and shared libraries
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
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg 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
    crystalhd
911
    dct
912
    doc
913
    dwt
914
    dxva2
915
    fastdiv
916
    ffmpeg
917
    ffplay
918
    ffprobe
919
    ffserver
920
    fft
921
    frei0r
922
    golomb
923
    gpl
924
    gray
925
    h264dsp
926
    h264pred
927
    hardcoded_tables
928
    huffman
929
    libdc1394
930
    libdirac
931
    libfaac
932
    libfreetype
933
    libgsm
934
    libmp3lame
935
    libnut
936
    libopencore_amrnb
937
    libopencore_amrwb
938
    libopencv
939
    libopenjpeg
940
    librtmp
941
    libschroedinger
942
    libspeex
943
    libtheora
944
    libvorbis
945
    libvpx
946
    libx264
947
    libxavs
948
    libxvid
949
    lpc
950
    lsp
951
    mdct
952
    memalign_hack
953
    mlib
954
    mpegaudio_hp
955
    network
956
    nonfree
957
    pic
958
    postproc
959
    rdft
960
    rtpdec
961
    runtime_cpudetect
962
    shared
963
    sinewin
964
    small
965
    sram
966
    static
967
    swscale
968
    swscale_alpha
969
    vaapi
970
    vdpau
971
    version3
972
    x11grab
973
    zlib
974
"
975

    
976
THREADS_LIST='
977
    pthreads
978
    w32threads
979
'
980

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

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

    
1025
HAVE_LIST_PUB='
1026
    bigendian
1027
    fast_unaligned
1028
'
1029

    
1030
HAVE_LIST="
1031
    $ARCH_EXT_LIST
1032
    $HAVE_LIST_PUB
1033
    $THREADS_LIST
1034
    aligned_stack
1035
    alsa_asoundlib_h
1036
    altivec_h
1037
    arpa_inet_h
1038
    attribute_may_alias
1039
    attribute_packed
1040
    bswap
1041
    closesocket
1042
    cmov
1043
    dcbzl
1044
    dev_bktr_ioctl_bt848_h
1045
    dev_bktr_ioctl_meteor_h
1046
    dev_ic_bt8xx_h
1047
    dev_video_meteor_ioctl_meteor_h
1048
    dev_video_bktr_ioctl_bt848_h
1049
    dlfcn_h
1050
    dlopen
1051
    dos_paths
1052
    ebp_available
1053
    ebx_available
1054
    exp2
1055
    exp2f
1056
    fast_64bit
1057
    fast_clz
1058
    fast_cmov
1059
    fcntl
1060
    fork
1061
    getaddrinfo
1062
    gethrtime
1063
    GetProcessMemoryInfo
1064
    GetProcessTimes
1065
    getrusage
1066
    gnu_as
1067
    struct_rusage_ru_maxrss
1068
    ibm_asm
1069
    inet_aton
1070
    inline_asm
1071
    isatty
1072
    kbhit
1073
    ldbrx
1074
    libdc1394_1
1075
    libdc1394_2
1076
    llrint
1077
    llrintf
1078
    local_aligned_16
1079
    local_aligned_8
1080
    localtime_r
1081
    log2
1082
    log2f
1083
    loongson
1084
    lrint
1085
    lrintf
1086
    lzo1x_999_compress
1087
    machine_ioctl_bt848_h
1088
    machine_ioctl_meteor_h
1089
    malloc_h
1090
    MapViewOfFile
1091
    memalign
1092
    mkstemp
1093
    mmap
1094
    pld
1095
    posix_memalign
1096
    round
1097
    roundf
1098
    sdl
1099
    sdl_video_size
1100
    setmode
1101
    sndio_h
1102
    socklen_t
1103
    soundcard_h
1104
    poll_h
1105
    setrlimit
1106
    strerror_r
1107
    strtok_r
1108
    struct_addrinfo
1109
    struct_ipv6_mreq
1110
    struct_sockaddr_in6
1111
    struct_sockaddr_sa_len
1112
    struct_sockaddr_storage
1113
    symver
1114
    symver_gnu_asm
1115
    symver_asm_label
1116
    sys_mman_h
1117
    sys_resource_h
1118
    sys_select_h
1119
    sys_soundcard_h
1120
    sys_videoio_h
1121
    ten_operands
1122
    termios_h
1123
    threads
1124
    truncf
1125
    vfp_args
1126
    VirtualAlloc
1127
    winsock2_h
1128
    xform_asm
1129
    xmm_clobbers
1130
    yasm
1131
"
1132

    
1133
# options emitted with CONFIG_ prefix but not available on command line
1134
CONFIG_EXTRA="
1135
    avutil
1136
    gplv3
1137
    lgplv3
1138
"
1139

    
1140
CMDLINE_SELECT="
1141
    $ARCH_EXT_LIST
1142
    $CONFIG_LIST
1143
    $THREADS_LIST
1144
    asm
1145
    cross_compile
1146
    debug
1147
    extra_warnings
1148
    logging
1149
    optimizations
1150
    stripping
1151
    symver
1152
    yasm
1153
"
1154

    
1155
PATHS_LIST='
1156
    bindir
1157
    datadir
1158
    incdir
1159
    libdir
1160
    mandir
1161
    prefix
1162
    shlibdir
1163
'
1164

    
1165
CMDLINE_SET="
1166
    $PATHS_LIST
1167
    ar
1168
    arch
1169
    as
1170
    build_suffix
1171
    cc
1172
    cpu
1173
    cross_prefix
1174
    dep_cc
1175
    extra_version
1176
    host_cc
1177
    host_cflags
1178
    host_ldflags
1179
    host_libs
1180
    host_os
1181
    ld
1182
    logfile
1183
    malloc_prefix
1184
    nm
1185
    pkg_config
1186
    samples
1187
    source_path
1188
    strip
1189
    sysinclude
1190
    sysroot
1191
    target_exec
1192
    target_os
1193
    target_path
1194
"
1195

    
1196
CMDLINE_APPEND="
1197
    extra_cflags
1198
"
1199

    
1200
# code dependency declarations
1201

    
1202
# architecture extensions
1203

    
1204
armv5te_deps="arm"
1205
armv6_deps="arm"
1206
armv6t2_deps="arm"
1207
armvfp_deps="arm"
1208
iwmmxt_deps="arm"
1209
neon_deps="arm"
1210

    
1211
mmi_deps="mips"
1212

    
1213
altivec_deps="ppc"
1214
ppc4xx_deps="ppc"
1215

    
1216
vis_deps="sparc"
1217

    
1218
x86_64_suggest="cmov fast_cmov"
1219
amd3dnow_deps="mmx"
1220
amd3dnowext_deps="amd3dnow"
1221
mmx_deps="x86"
1222
mmx2_deps="mmx"
1223
sse_deps="mmx"
1224
ssse3_deps="sse"
1225
avx_deps="ssse3"
1226

    
1227
aligned_stack_if_any="ppc x86"
1228
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1229
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1230
fast_unaligned_if_any="armv6 ppc x86"
1231

    
1232
need_memalign="altivec neon sse"
1233
inline_asm_deps="!tms470"
1234

    
1235
symver_if_any="symver_asm_label symver_gnu_asm"
1236

    
1237
# subsystems
1238
dct_select="rdft"
1239
mdct_select="fft"
1240
rdft_select="fft"
1241

    
1242
# decoders / encoders / hardware accelerators
1243
aac_decoder_select="mdct rdft sinewin"
1244
aac_encoder_select="mdct sinewin"
1245
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1246
ac3_decoder_select="mdct ac3dsp ac3_parser"
1247
ac3_encoder_select="mdct ac3dsp"
1248
ac3_fixed_encoder_select="ac3dsp"
1249
alac_encoder_select="lpc"
1250
amrnb_decoder_select="lsp"
1251
amrwb_decoder_select="lsp"
1252
atrac1_decoder_select="mdct sinewin"
1253
atrac3_decoder_select="mdct"
1254
binkaudio_dct_decoder_select="mdct rdft dct"
1255
binkaudio_rdft_decoder_select="mdct rdft"
1256
cavs_decoder_select="golomb"
1257
cook_decoder_select="mdct sinewin"
1258
cscd_decoder_suggest="zlib"
1259
dca_decoder_select="mdct"
1260
dnxhd_encoder_select="aandct"
1261
dxa_decoder_select="zlib"
1262
eac3_decoder_select="ac3_decoder"
1263
eamad_decoder_select="aandct"
1264
eatgq_decoder_select="aandct"
1265
eatqi_decoder_select="aandct"
1266
ffv1_decoder_select="golomb"
1267
flac_decoder_select="golomb"
1268
flac_encoder_select="golomb lpc"
1269
flashsv_decoder_select="zlib"
1270
flashsv_encoder_select="zlib"
1271
flv_decoder_select="h263_decoder"
1272
flv_encoder_select="h263_encoder"
1273
fraps_decoder_select="huffman"
1274
h261_encoder_select="aandct"
1275
h263_decoder_select="h263_parser"
1276
h263_encoder_select="aandct"
1277
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1278
h263i_decoder_select="h263_decoder"
1279
h263p_encoder_select="h263_encoder"
1280
h264_decoder_select="golomb h264dsp h264pred"
1281
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1282
h264_dxva2_hwaccel_deps="dxva2api_h"
1283
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1284
h264_vaapi_hwaccel_select="vaapi"
1285
h264_vdpau_decoder_select="vdpau h264_decoder"
1286
imc_decoder_select="fft mdct"
1287
jpegls_decoder_select="golomb"
1288
jpegls_encoder_select="golomb"
1289
ljpeg_encoder_select="aandct"
1290
loco_decoder_select="golomb"
1291
mjpeg_encoder_select="aandct"
1292
mlp_decoder_select="mlp_parser"
1293
mp1float_decoder_select="dct"
1294
mp2float_decoder_select="dct"
1295
mp3adufloat_decoder_select="dct"
1296
mp3float_decoder_select="dct"
1297
mp3on4float_decoder_select="dct"
1298
mpeg1video_encoder_select="aandct"
1299
mpeg2video_encoder_select="aandct"
1300
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1301
mpeg4_encoder_select="h263_encoder"
1302
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1303
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1304
mpeg2_crystalhd_decoder_select="crystalhd"
1305
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1306
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1307
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1308
mpeg4_crystalhd_decoder_select="crystalhd"
1309
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1310
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1311
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1312
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1313
msmpeg4_crystalhd_decoder_select="crystalhd"
1314
msmpeg4v1_decoder_select="h263_decoder"
1315
msmpeg4v1_encoder_select="h263_encoder"
1316
msmpeg4v2_decoder_select="h263_decoder"
1317
msmpeg4v2_encoder_select="h263_encoder"
1318
msmpeg4v3_decoder_select="h263_decoder"
1319
msmpeg4v3_encoder_select="h263_encoder"
1320
nellymoser_decoder_select="mdct sinewin"
1321
nellymoser_encoder_select="mdct sinewin"
1322
png_decoder_select="zlib"
1323
png_encoder_select="zlib"
1324
qcelp_decoder_select="lsp"
1325
qdm2_decoder_select="mdct rdft"
1326
ra_144_encoder_select="lpc"
1327
rv10_decoder_select="h263_decoder"
1328
rv10_encoder_select="h263_encoder"
1329
rv20_decoder_select="h263_decoder"
1330
rv20_encoder_select="h263_encoder"
1331
rv30_decoder_select="golomb h264pred"
1332
rv40_decoder_select="golomb h264pred"
1333
shorten_decoder_select="golomb"
1334
sipr_decoder_select="lsp"
1335
snow_decoder_select="dwt"
1336
snow_encoder_select="aandct dwt"
1337
sonic_decoder_select="golomb"
1338
sonic_encoder_select="golomb"
1339
sonic_ls_encoder_select="golomb"
1340
svq1_encoder_select="aandct"
1341
svq3_decoder_select="golomb h264dsp h264pred"
1342
svq3_decoder_suggest="zlib"
1343
theora_decoder_select="vp3_decoder"
1344
tiff_decoder_suggest="zlib"
1345
tiff_encoder_suggest="zlib"
1346
truehd_decoder_select="mlp_decoder"
1347
tscc_decoder_select="zlib"
1348
twinvq_decoder_select="mdct lsp sinewin"
1349
vc1_decoder_select="h263_decoder"
1350
vc1_crystalhd_decoder_select="crystalhd"
1351
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1352
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1353
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1354
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1355
vorbis_decoder_select="mdct"
1356
vorbis_encoder_select="mdct"
1357
vp6_decoder_select="huffman"
1358
vp6a_decoder_select="vp6_decoder"
1359
vp6f_decoder_select="vp6_decoder"
1360
vp8_decoder_select="h264pred"
1361
wmapro_decoder_select="mdct sinewin"
1362
wmav1_decoder_select="mdct sinewin"
1363
wmav1_encoder_select="mdct sinewin"
1364
wmav2_decoder_select="mdct sinewin"
1365
wmav2_encoder_select="mdct sinewin"
1366
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1367
wmv1_decoder_select="h263_decoder"
1368
wmv1_encoder_select="h263_encoder"
1369
wmv2_decoder_select="h263_decoder"
1370
wmv2_encoder_select="h263_encoder"
1371
wmv3_decoder_select="vc1_decoder"
1372
wmv3_crystalhd_decoder_select="crystalhd"
1373
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1374
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1375
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1376
zlib_decoder_select="zlib"
1377
zlib_encoder_select="zlib"
1378
zmbv_decoder_select="zlib"
1379
zmbv_encoder_select="zlib"
1380

    
1381
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1382
vaapi_deps="va_va_h"
1383
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1384

    
1385
# parsers
1386
h264_parser_select="golomb h264dsp h264pred"
1387

    
1388
# external libraries
1389
libdirac_decoder_deps="libdirac !libschroedinger"
1390
libdirac_encoder_deps="libdirac"
1391
libfaac_encoder_deps="libfaac"
1392
libgsm_decoder_deps="libgsm"
1393
libgsm_encoder_deps="libgsm"
1394
libgsm_ms_decoder_deps="libgsm"
1395
libgsm_ms_encoder_deps="libgsm"
1396
libmp3lame_encoder_deps="libmp3lame"
1397
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1398
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1399
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1400
libopenjpeg_decoder_deps="libopenjpeg"
1401
libschroedinger_decoder_deps="libschroedinger"
1402
libschroedinger_encoder_deps="libschroedinger"
1403
libspeex_decoder_deps="libspeex"
1404
libtheora_encoder_deps="libtheora"
1405
libvorbis_encoder_deps="libvorbis"
1406
libvpx_decoder_deps="libvpx"
1407
libvpx_encoder_deps="libvpx"
1408
libx264_encoder_deps="libx264"
1409
libxavs_encoder_deps="libxavs"
1410
libxvid_encoder_deps="libxvid"
1411

    
1412
# demuxers / muxers
1413
ac3_demuxer_select="ac3_parser"
1414
asf_stream_muxer_select="asf_muxer"
1415
avisynth_demuxer_deps="avisynth"
1416
dirac_demuxer_select="dirac_parser"
1417
eac3_demuxer_select="ac3_parser"
1418
flac_demuxer_select="flac_parser"
1419
ipod_muxer_select="mov_muxer"
1420
libnut_demuxer_deps="libnut"
1421
libnut_muxer_deps="libnut"
1422
matroska_audio_muxer_select="matroska_muxer"
1423
matroska_demuxer_suggest="zlib bzlib"
1424
mov_demuxer_suggest="zlib"
1425
mp3_demuxer_select="mpegaudio_parser"
1426
mp4_muxer_select="mov_muxer"
1427
mpegtsraw_demuxer_select="mpegts_demuxer"
1428
mxf_d10_muxer_select="mxf_muxer"
1429
ogg_demuxer_select="golomb"
1430
psp_muxer_select="mov_muxer"
1431
rtp_demuxer_select="sdp_demuxer"
1432
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1433
rtsp_demuxer_select="http_protocol rtpdec"
1434
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1435
sap_demuxer_select="sdp_demuxer"
1436
sap_muxer_select="rtp_muxer rtp_protocol"
1437
sdp_demuxer_select="rtpdec"
1438
spdif_muxer_select="aac_parser"
1439
tg2_muxer_select="mov_muxer"
1440
tgp_muxer_select="mov_muxer"
1441
w64_demuxer_deps="wav_demuxer"
1442

    
1443
# indevs / outdevs
1444
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1445
alsa_outdev_deps="alsa_asoundlib_h"
1446
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1447
dv1394_indev_deps="dv1394 dv_demuxer"
1448
fbdev_indev_deps="linux_fb_h"
1449
jack_indev_deps="jack_jack_h"
1450
libdc1394_indev_deps="libdc1394"
1451
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1452
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1453
sndio_indev_deps="sndio_h"
1454
sndio_outdev_deps="sndio_h"
1455
v4l_indev_deps="linux_videodev_h"
1456
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1457
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1458
vfwcap_indev_extralibs="-lavicap32"
1459
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1460
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1461

    
1462
# protocols
1463
gopher_protocol_deps="network"
1464
http_protocol_deps="network"
1465
http_protocol_select="tcp_protocol"
1466
mmsh_protocol_select="http_protocol"
1467
mmst_protocol_deps="network"
1468
rtmp_protocol_select="tcp_protocol"
1469
rtp_protocol_select="udp_protocol"
1470
tcp_protocol_deps="network"
1471
udp_protocol_deps="network"
1472

    
1473
# filters
1474
blackframe_filter_deps="gpl"
1475
cropdetect_filter_deps="gpl"
1476
drawtext_filter_deps="libfreetype"
1477
frei0r_filter_deps="frei0r dlopen strtok_r"
1478
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1479
hqdn3d_filter_deps="gpl"
1480
mp_filter_deps="gpl"
1481
ocv_filter_deps="libopencv"
1482
scale_filter_deps="swscale"
1483
yadif_filter_deps="gpl"
1484

    
1485
# libraries
1486
avdevice_deps="avcodec avformat"
1487
avformat_deps="avcodec"
1488

    
1489
# programs
1490
ffmpeg_deps="avcodec avformat swscale"
1491
ffmpeg_select="buffer_filter"
1492
ffplay_deps="avcodec avformat swscale sdl"
1493
ffplay_select="rdft"
1494
ffprobe_deps="avcodec avformat"
1495
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1496
ffserver_extralibs='$ldl'
1497

    
1498
doc_deps="texi2html"
1499

    
1500
# tests
1501

    
1502
test_deps(){
1503
    suf1=$1
1504
    suf2=$2
1505
    shift 2
1506
    for v; do
1507
        dep=${v%=*}
1508
        tests=${v#*=}
1509
        for name in ${tests}; do
1510
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1511
        done
1512
    done
1513
}
1514

    
1515
set_ne_test_deps(){
1516
    eval ${1}_be_test_deps="bigendian"
1517
    eval ${1}_le_test_deps="!bigendian"
1518
}
1519

    
1520
test_deps _encoder _decoder                                             \
1521
    adpcm_g726=g726                                                     \
1522
    adpcm_ima_qt                                                        \
1523
    adpcm_ima_wav                                                       \
1524
    adpcm_ms                                                            \
1525
    adpcm_swf                                                           \
1526
    adpcm_yamaha=adpcm_yam                                              \
1527
    alac                                                                \
1528
    asv1                                                                \
1529
    asv2                                                                \
1530
    bmp                                                                 \
1531
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1532
    dvvideo="dv dv50"                                                   \
1533
    ffv1                                                                \
1534
    flac                                                                \
1535
    flashsv                                                             \
1536
    flv                                                                 \
1537
    gif                                                                 \
1538
    h261                                                                \
1539
    h263="h263 h263p"                                                   \
1540
    huffyuv                                                             \
1541
    jpegls                                                              \
1542
    mjpeg="jpg mjpeg ljpeg"                                             \
1543
    mp2                                                                 \
1544
    mpeg1video="mpeg mpeg1b"                                            \
1545
    mpeg2video="mpeg2 mpeg2thread"                                      \
1546
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1547
    msmpeg4v3=msmpeg4                                                   \
1548
    msmpeg4v2                                                           \
1549
    pbm=pbmpipe                                                         \
1550
    pcx                                                                 \
1551
    pgm="pgm pgmpipe"                                                   \
1552
    png                                                                 \
1553
    ppm="ppm ppmpipe"                                                   \
1554
    rawvideo="rgb yuv"                                                  \
1555
    roq                                                                 \
1556
    rv10                                                                \
1557
    rv20                                                                \
1558
    sgi                                                                 \
1559
    snow="snow snowll"                                                  \
1560
    svq1                                                                \
1561
    targa=tga                                                           \
1562
    tiff                                                                \
1563
    wmav1                                                               \
1564
    wmav2                                                               \
1565
    wmv1                                                                \
1566
    wmv2                                                                \
1567

    
1568
test_deps _muxer _demuxer                                               \
1569
    aiff                                                                \
1570
    pcm_alaw=alaw                                                       \
1571
    asf                                                                 \
1572
    au                                                                  \
1573
    avi                                                                 \
1574
    dv=dv_fmt                                                           \
1575
    ffm                                                                 \
1576
    flv=flv_fmt                                                         \
1577
    gxf                                                                 \
1578
    matroska=mkv                                                        \
1579
    mmf                                                                 \
1580
    mov                                                                 \
1581
    pcm_mulaw=mulaw                                                     \
1582
    mxf                                                                 \
1583
    nut                                                                 \
1584
    ogg                                                                 \
1585
    rawvideo=pixfmt                                                     \
1586
    rm                                                                  \
1587
    swf                                                                 \
1588
    mpegts=ts                                                           \
1589
    voc                                                                 \
1590
    wav                                                                 \
1591
    yuv4mpegpipe=yuv4mpeg                                               \
1592

    
1593
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1594
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1595

    
1596
set_ne_test_deps pixdesc
1597
set_ne_test_deps pixfmts_copy
1598
set_ne_test_deps pixfmts_crop
1599
set_ne_test_deps pixfmts_hflip
1600
set_ne_test_deps pixfmts_null
1601
set_ne_test_deps pixfmts_pad
1602
set_ne_test_deps pixfmts_scale
1603
set_ne_test_deps pixfmts_vflip
1604

    
1605
# default parameters
1606

    
1607
logfile="config.log"
1608

    
1609
# installation paths
1610
prefix_default="/usr/local"
1611
bindir_default='${prefix}/bin'
1612
datadir_default='${prefix}/share/ffmpeg'
1613
incdir_default='${prefix}/include'
1614
libdir_default='${prefix}/lib'
1615
mandir_default='${prefix}/share/man'
1616
shlibdir_default="$libdir_default"
1617

    
1618
# toolchain
1619
ar_default="ar"
1620
cc_default="gcc"
1621
cc_version=\"unknown\"
1622
host_cc_default="gcc"
1623
ln_s="ln -sf"
1624
nm_default="nm"
1625
objformat="elf"
1626
pkg_config_default=pkg-config
1627
ranlib="ranlib"
1628
strip_default="strip"
1629
yasmexe="yasm"
1630
nogas=":"
1631

    
1632
nm_opts='-g'
1633

    
1634
# machine
1635
arch_default=$(uname -m)
1636
cpu="generic"
1637

    
1638
# OS
1639
target_os_default=$(tolower $(uname -s))
1640
host_os=$target_os_default
1641

    
1642
# configurable options
1643
enable avcodec
1644
enable avdevice
1645
enable avfilter
1646
enable avformat
1647
enable avutil
1648
enable asm
1649
enable debug
1650
enable doc
1651
enable fastdiv
1652
enable ffmpeg
1653
enable ffplay
1654
enable ffprobe
1655
enable ffserver
1656
enable mpegaudio_hp
1657
enable network
1658
enable optimizations
1659
enable protocols
1660
enable static
1661
enable stripping
1662
enable swscale
1663
enable swscale_alpha
1664

    
1665
# build settings
1666
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1667
FFSERVERLDFLAGS=-Wl,-E
1668
LIBPREF="lib"
1669
LIBSUF=".a"
1670
FULLNAME='$(NAME)$(BUILDSUF)'
1671
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1672
SLIBPREF="lib"
1673
SLIBSUF=".so"
1674
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1675
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1676
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1677
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1678

    
1679
CC_O='-o $@'
1680

    
1681
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1682
host_libs='-lm'
1683

    
1684
target_path='$(CURDIR)'
1685

    
1686
# since the object filename is not given with the -MM flag, the compiler
1687
# is only able to print the basename, and we must add the path ourselves
1688
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1689
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1690

    
1691
# find source path
1692
source_path="$(dirname "$0")"
1693
enable source_path_used
1694
if test -f configure; then
1695
    source_path="$(pwd)"
1696
    disable source_path_used
1697
else
1698
    source_path="$(cd "$source_path"; pwd)"
1699
    echo "$source_path" | grep -q '[[:blank:]]' &&
1700
        die "Out of tree builds are impossible with whitespace in source path."
1701
    test -e "$source_path/config.h" &&
1702
        die "Out of tree builds are impossible with config.h in source dir."
1703
fi
1704

    
1705
for v in "$@"; do
1706
    r=${v#*=}
1707
    l=${v%"$r"}
1708
    r=$(sh_quote "$r")
1709
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1710
done
1711

    
1712
find_things(){
1713
    thing=$1
1714
    pattern=$2
1715
    file=$source_path/$3
1716
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1717
}
1718

    
1719
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1720
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1721
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1722
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1723
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1724
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1725
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1726
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1727
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1728
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1729
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1730

    
1731
find_tests(){
1732
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1733
}
1734

    
1735
ACODEC_TESTS=$(find_tests acodec)
1736
VCODEC_TESTS=$(find_tests vsynth1)
1737
LAVF_TESTS=$(find_tests lavf)
1738
LAVFI_TESTS=$(find_tests lavfi)
1739
SEEK_TESTS=$(find_tests seek seek_)
1740

    
1741
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1742

    
1743
for n in $COMPONENT_LIST; do
1744
    v=$(toupper ${n%s})_LIST
1745
    eval enable \$$v
1746
    eval ${n}_if_any="\$$v"
1747
done
1748

    
1749
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1750

    
1751
die_unknown(){
1752
    echo "Unknown option \"$1\"."
1753
    echo "See $0 --help for available options."
1754
    exit 1
1755
}
1756

    
1757
show_list() {
1758
    suffix=_$1
1759
    shift
1760
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1761
    exit 0
1762
}
1763

    
1764
for opt do
1765
    optval="${opt#*=}"
1766
    case "$opt" in
1767
    --extra-ldflags=*) add_ldflags $optval
1768
    ;;
1769
    --extra-libs=*) add_extralibs $optval
1770
    ;;
1771
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1772
    ;;
1773
    --enable-debug=*) debuglevel="$optval"
1774
    ;;
1775
    --disable-everything)
1776
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1777
    ;;
1778
    --enable-*=*|--disable-*=*)
1779
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1780
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1781
    eval list=\$$(toupper $thing)_LIST
1782
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1783
    $action $(filter "$name" $list)
1784
    ;;
1785
    --enable-?*|--disable-?*)
1786
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1787
    if is_in $option $COMPONENT_LIST; then
1788
        test $action = disable && action=unset
1789
        eval $action \$$(toupper ${option%s})_LIST
1790
    elif is_in $option $CMDLINE_SELECT; then
1791
        $action $option
1792
    else
1793
        die_unknown $opt
1794
    fi
1795
    ;;
1796
    --list-*)
1797
        NAME="${opt#--list-}"
1798
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1799
        NAME=${NAME%s}
1800
        eval show_list $NAME \$$(toupper $NAME)_LIST
1801
    ;;
1802
    --help|-h) show_help
1803
    ;;
1804
    *)
1805
    optname="${opt%%=*}"
1806
    optname="${optname#--}"
1807
    optname=$(echo "$optname" | sed 's/-/_/g')
1808
    if is_in $optname $CMDLINE_SET; then
1809
        eval $optname='$optval'
1810
    elif is_in $optname $CMDLINE_APPEND; then
1811
        append $optname "$optval"
1812
    else
1813
         die_unknown $opt
1814
    fi
1815
    ;;
1816
    esac
1817
done
1818

    
1819
disabled logging && logfile=/dev/null
1820

    
1821
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1822
set >> $logfile
1823

    
1824
test -n "$cross_prefix" && enable cross_compile
1825

    
1826
if enabled cross_compile; then
1827
    test -n "$arch" && test -n "$target_os" ||
1828
        die "Must specify target arch and OS when cross-compiling"
1829
fi
1830

    
1831
set_default arch target_os
1832

    
1833
ar_default="${cross_prefix}${ar_default}"
1834
cc_default="${cross_prefix}${cc_default}"
1835
nm_default="${cross_prefix}${nm_default}"
1836
pkg_config_default="${cross_prefix}${pkg_config_default}"
1837
ranlib="${cross_prefix}${ranlib}"
1838
strip_default="${cross_prefix}${strip_default}"
1839

    
1840
sysinclude_default="${sysroot}/usr/include"
1841

    
1842
set_default cc nm pkg_config strip sysinclude
1843
enabled cross_compile || host_cc_default=$cc
1844
set_default host_cc
1845

    
1846
exesuf() {
1847
    case $1 in
1848
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1849
    esac
1850
}
1851

    
1852
EXESUF=$(exesuf $target_os)
1853
HOSTEXESUF=$(exesuf $host_os)
1854

    
1855
# set temporary file name
1856
: ${TMPDIR:=$TEMPDIR}
1857
: ${TMPDIR:=$TMP}
1858
: ${TMPDIR:=/tmp}
1859

    
1860
if ! check_cmd mktemp -u XXXXXX; then
1861
    # simple replacement for missing mktemp
1862
    # NOT SAFE FOR GENERAL USE
1863
    mktemp(){
1864
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1865
    }
1866
fi
1867

    
1868
tmpfile(){
1869
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1870
        (set -C; exec > $tmp) 2>/dev/null ||
1871
        die "Unable to create temporary file in $TMPDIR."
1872
    append TMPFILES $tmp
1873
    eval $1=$tmp
1874
}
1875

    
1876
trap 'rm -f -- $TMPFILES' EXIT
1877

    
1878
tmpfile TMPC  .c
1879
tmpfile TMPE  $EXESUF
1880
tmpfile TMPH  .h
1881
tmpfile TMPO  .o
1882
tmpfile TMPS  .S
1883
tmpfile TMPV  .ver
1884
tmpfile TMPSH .sh
1885
tmpfile TMPASM .asm
1886

    
1887
unset -f mktemp
1888

    
1889
chmod +x $TMPE
1890

    
1891
# make sure we can execute files in $TMPDIR
1892
cat > $TMPSH 2>> $logfile <<EOF
1893
#! /bin/sh
1894
EOF
1895
chmod +x $TMPSH >> $logfile 2>&1
1896
if ! $TMPSH >> $logfile 2>&1; then
1897
    cat <<EOF
1898
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1899
variable to another directory and make sure that it is not mounted noexec.
1900
EOF
1901
    die "Sanity test failed."
1902
fi
1903

    
1904
filter_cflags=echo
1905
filter_cppflags=echo
1906
filter_asflags=echo
1907

    
1908
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1909
    cc_type=llvm_gcc
1910
    cc_version=__VERSION__
1911
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1912
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1913
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1915
    speed_cflags='-O3'
1916
    size_cflags='-Os'
1917
elif $cc -v 2>&1 | grep -qi ^gcc; then
1918
    cc_type=gcc
1919
    cc_version=__VERSION__
1920
    gcc_version=$($cc --version | head -n1)
1921
    gcc_basever=$($cc -dumpversion)
1922
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1923
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1924
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1925
    if ! $cc -dumpversion | grep -q '^2\.'; then
1926
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1928
    fi
1929
    speed_cflags='-O3'
1930
    size_cflags='-Os'
1931
elif $cc --version 2>/dev/null | grep -q Intel; then
1932
    cc_type=icc
1933
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1934
    cc_ident=$($cc --version | head -n1)
1935
    icc_version=$($cc -dumpversion)
1936
    CC_DEPFLAGS='-MMD'
1937
    AS_DEPFLAGS='-MMD'
1938
    speed_cflags='-O3'
1939
    size_cflags='-Os'
1940
    noopt_cflags='-O1'
1941
elif $cc -v 2>&1 | grep -q xlc; then
1942
    cc_type=xlc
1943
    cc_version="AV_STRINGIFY(__IBMC__)"
1944
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1945
    speed_cflags='-O5'
1946
    size_cflags='-O5 -qcompact'
1947
elif $cc -V 2>/dev/null | grep -q Compaq; then
1948
    cc_type=ccc
1949
    cc_version="AV_STRINGIFY(__DECC_VER)"
1950
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1951
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1952
    debuglevel=3
1953
    add_ldflags -Wl,-z,now # calls to libots crash without this
1954
    speed_cflags='-fast'
1955
    size_cflags='-O1'
1956
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1957
    test -d "$sysroot" || die "No valid sysroot specified."
1958
    cc_type=armcc
1959
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1960
    cc_ident=$($cc --vsn | head -n1)
1961
    armcc_conf="$PWD/armcc.conf"
1962
    $cc --arm_linux_configure                 \
1963
        --arm_linux_config_file="$armcc_conf" \
1964
        --configure_sysroot="$sysroot"        \
1965
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1966
        die "Error creating armcc configuration file."
1967
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1968
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1969
    as_default="${cross_prefix}gcc"
1970
    CC_DEPFLAGS='-MMD'
1971
    AS_DEPFLAGS='-MMD'
1972
    speed_cflags='-O3'
1973
    size_cflags='-Os'
1974
    filter_asflags="filter_out -W${armcc_opt}*"
1975
elif $cc -version 2>/dev/null | grep -q TMS470; then
1976
    cc_type=tms470
1977
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1978
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1979
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1980
    CC_O='-fr=$(@D)'
1981
    as_default="${cross_prefix}gcc"
1982
    ld_default="${cross_prefix}gcc"
1983
    TMPO=$(basename $TMPC .c).o
1984
    append TMPFILES $TMPO
1985
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1986
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1987
    AS_DEPFLAGS='-MMD'
1988
    speed_cflags='-O3 -mf=5'
1989
    size_cflags='-O3 -mf=2'
1990
    filter_cflags=tms470_flags
1991
    tms470_flags(){
1992
        for flag; do
1993
            case $flag in
1994
                -march=*|-mcpu=*)
1995
                    case "${flag#*=}" in
1996
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1997
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1998
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1999
                        armv6*|arm11*)          echo -mv=6   ;;
2000
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2001
                                                echo -mv=5e  ;;
2002
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2003
                    esac
2004
                    ;;
2005
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2006
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
2007
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2008
                -msoft-float)   echo --float_support=vfplib       ;;
2009
                -O[0-3]|-mf=*)  echo $flag                        ;;
2010
                -g)             echo -g -mn                       ;;
2011
                -pds=*)         echo $flag                        ;;
2012
            esac
2013
        done
2014
    }
2015
elif $cc -v 2>&1 | grep -q clang; then
2016
    cc_type=clang
2017
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2018
        cc_version=__clang_version__ || cc_version=__VERSION__
2019
    cc_ident=$($cc --version | head -n1)
2020
    CC_DEPFLAGS='-MMD'
2021
    AS_DEPFLAGS='-MMD'
2022
    speed_cflags='-O3'
2023
    size_cflags='-Os'
2024
elif $cc -V 2>&1 | grep -q Sun; then
2025
    cc_type=suncc
2026
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2027
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2028
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2029
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2030
    speed_cflags='-O5'
2031
    size_cflags='-O5 -xspace'
2032
    filter_cflags=suncc_flags
2033
    suncc_flags(){
2034
        for flag; do
2035
            case $flag in
2036
                -march=*|-mcpu=*)
2037
                    case "${flag#*=}" in
2038
                        native)                   echo -xtarget=native       ;;
2039
                        v9|niagara)               echo -xarch=sparc          ;;
2040
                        ultrasparc)               echo -xarch=sparcvis       ;;
2041
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2042
                        i586|pentium)             echo -xchip=pentium        ;;
2043
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2044
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2045
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2046
                        pentium4*)          echo -xtarget=pentium4           ;;
2047
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2048
                        *-sse3)             echo -xarch=sse3                 ;;
2049
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2050
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2051
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2052
                        k8|opteron|athlon64|athlon-fx)
2053
                                                  echo -xarch=sse2a          ;;
2054
                        athlon*)                  echo -xarch=pentium_proa   ;;
2055
                    esac
2056
                    ;;
2057
                -std=c99)             echo -xc99              ;;
2058
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2059
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2060
                -W*,*)                echo $flag              ;;
2061
                -f*-*|-W*)                                    ;;
2062
                *)                    echo $flag              ;;
2063
            esac
2064
        done
2065
    }
2066
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2067
    cc_type=pathscale
2068
    cc_version=__PATHSCALE__
2069
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2070
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2072
    speed_cflags='-O2'
2073
    size_cflags='-Os'
2074
elif $cc -v 2>&1 | grep -q Open64; then
2075
    cc_type=open64
2076
    cc_version=__OPEN64__
2077
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2078
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2080
    speed_cflags='-O2'
2081
    size_cflags='-Os'
2082
fi
2083

    
2084
test -n "$cc_type" && enable $cc_type ||
2085
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2086

    
2087
: ${as_default:=$cc}
2088
: ${dep_cc_default:=$cc}
2089
: ${ld_default:=$cc}
2090
set_default ar as dep_cc ld
2091

    
2092
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2093
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2094

    
2095
add_cflags $extra_cflags
2096
add_asflags $extra_cflags
2097

    
2098
if test -n "$sysroot"; then
2099
    case "$cc_type" in
2100
        gcc|llvm_gcc|clang)
2101
            add_cppflags --sysroot="$sysroot"
2102
            add_ldflags --sysroot="$sysroot"
2103
        ;;
2104
        tms470)
2105
            add_cppflags -I"$sysinclude"
2106
            add_ldflags  --sysroot="$sysroot"
2107
        ;;
2108
    esac
2109
fi
2110

    
2111
if test "$cpu" = host; then
2112
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2113

    
2114
    case "$cc_type" in
2115
        gcc|llvm_gcc)
2116
            check_native(){
2117
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2118
                sed -n "/$1=/{
2119
                            s/.*$1=\\([^ ]*\\).*/\\1/
2120
                            p
2121
                            q
2122
                        }" $TMPE
2123
            }
2124
            cpu=$(check_native -march || check_native -mcpu)
2125
        ;;
2126
    esac
2127

    
2128
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2129
fi
2130

    
2131
# Deal with common $arch aliases
2132
case "$arch" in
2133
    arm*)
2134
        arch="arm"
2135
    ;;
2136
    mips|mipsel|IP*)
2137
        arch="mips"
2138
    ;;
2139
    mips64*)
2140
        arch="mips"
2141
        subarch="mips64"
2142
    ;;
2143
    parisc|hppa)
2144
        arch="parisc"
2145
    ;;
2146
    parisc64|hppa64)
2147
        arch="parisc"
2148
        subarch="parisc64"
2149
    ;;
2150
    "Power Macintosh"|ppc|powerpc)
2151
        arch="ppc"
2152
    ;;
2153
    ppc64|powerpc64)
2154
        arch="ppc"
2155
        subarch="ppc64"
2156
    ;;
2157
    s390|s390x)
2158
        arch="s390"
2159
    ;;
2160
    sh4|sh)
2161
        arch="sh4"
2162
    ;;
2163
    sun4u|sparc64)
2164
        arch="sparc"
2165
        subarch="sparc64"
2166
    ;;
2167
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2168
        arch="x86"
2169
    ;;
2170
esac
2171

    
2172
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2173
enable $arch
2174

    
2175
# Add processor-specific flags
2176
if test "$cpu" = generic; then
2177
    : do nothing
2178
elif enabled ppc; then
2179

    
2180
    case $(tolower $cpu) in
2181
        601|ppc601|powerpc601)
2182
            cpuflags="-mcpu=601"
2183
            disable altivec
2184
        ;;
2185
        603*|ppc603*|powerpc603*)
2186
            cpuflags="-mcpu=603"
2187
            disable altivec
2188
        ;;
2189
        604*|ppc604*|powerpc604*)
2190
            cpuflags="-mcpu=604"
2191
            disable altivec
2192
        ;;
2193
        g3|75*|ppc75*|powerpc75*)
2194
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2195
            disable altivec
2196
        ;;
2197
        g4|745*|ppc745*|powerpc745*)
2198
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2199
        ;;
2200
        74*|ppc74*|powerpc74*)
2201
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2202
        ;;
2203
        g5|970|ppc970|powerpc970|power4*)
2204
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2205
        ;;
2206
        cell)
2207
            cpuflags="-mcpu=cell"
2208
            enable ldbrx
2209
        ;;
2210
        e500v2)
2211
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2212
            disable altivec
2213
        ;;
2214
        e500)
2215
            cpuflags="-mcpu=8540 -mhard-float"
2216
            disable altivec
2217
        ;;
2218
    esac
2219

    
2220
elif enabled x86; then
2221

    
2222
    case $cpu in
2223
        i[345]86|pentium)
2224
            cpuflags="-march=$cpu"
2225
            disable mmx
2226
        ;;
2227
        # targets that do NOT support conditional mov (cmov)
2228
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2229
            cpuflags="-march=$cpu"
2230
            disable cmov
2231
        ;;
2232
        # targets that do support conditional mov (cmov)
2233
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2234
            cpuflags="-march=$cpu"
2235
            enable cmov
2236
            enable fast_cmov
2237
        ;;
2238
        # targets that do support conditional mov but on which it's slow
2239
        pentium4|pentium4m|prescott|nocona)
2240
            cpuflags="-march=$cpu"
2241
            enable cmov
2242
            disable fast_cmov
2243
        ;;
2244
    esac
2245

    
2246
elif enabled sparc; then
2247

    
2248
    case $cpu in
2249
        niagara)
2250
            cpuflags="-mcpu=$cpu"
2251
            disable vis
2252
        ;;
2253
        sparc64)
2254
            cpuflags="-mcpu=v9"
2255
        ;;
2256
    esac
2257

    
2258
elif enabled arm; then
2259

    
2260
    case $cpu in
2261
        armv*)
2262
            cpuflags="-march=$cpu"
2263
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2264
        ;;
2265
        *)
2266
            cpuflags="-mcpu=$cpu"
2267
            case $cpu in
2268
                cortex-a*)                               subarch=armv7a  ;;
2269
                cortex-r*)                               subarch=armv7r  ;;
2270
                cortex-m*)                               subarch=armv7m  ;;
2271
                arm11*)                                  subarch=armv6   ;;
2272
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2273
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2274
            esac
2275
        ;;
2276
    esac
2277

    
2278
elif enabled alpha; then
2279

    
2280
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2281

    
2282
elif enabled bfin; then
2283

    
2284
    cpuflags="-mcpu=$cpu"
2285

    
2286
elif enabled mips; then
2287

    
2288
    cpuflags="-march=$cpu"
2289

    
2290
elif enabled avr32; then
2291

    
2292
    case $cpu in
2293
        ap7[02]0[0-2])
2294
            subarch="avr32_ap"
2295
            cpuflags="-mpart=$cpu"
2296
        ;;
2297
        ap)
2298
            subarch="avr32_ap"
2299
            cpuflags="-march=$cpu"
2300
        ;;
2301
        uc3[ab]*)
2302
            subarch="avr32_uc"
2303
            cpuflags="-mcpu=$cpu"
2304
        ;;
2305
        uc)
2306
            subarch="avr32_uc"
2307
            cpuflags="-march=$cpu"
2308
        ;;
2309
    esac
2310

    
2311
fi
2312

    
2313
add_cflags $cpuflags
2314
add_asflags $cpuflags
2315

    
2316
# compiler sanity check
2317
check_exec <<EOF
2318
int main(void){ return 0; }
2319
EOF
2320
if test "$?" != 0; then
2321
    echo "$cc is unable to create an executable file."
2322
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2323
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2324
        echo "Only do this if you know what cross compiling means."
2325
    fi
2326
    die "C compiler test failed."
2327
fi
2328

    
2329
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2330
check_cflags -std=c99
2331
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2332
#include <stdlib.h>
2333
EOF
2334
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2335
#include <stdlib.h>
2336
EOF
2337

    
2338
check_host_cflags -std=c99
2339

    
2340
case "$arch" in
2341
    alpha|ia64|mips|parisc|sparc)
2342
        spic=$shared
2343
    ;;
2344
    x86)
2345
        subarch="x86_32"
2346
        check_cc <<EOF && subarch="x86_64"
2347
        int test[(int)sizeof(char*) - 7];
2348
EOF
2349
        if test "$subarch" = "x86_64"; then
2350
            spic=$shared
2351
        fi
2352
    ;;
2353
esac
2354

    
2355
enable $subarch
2356
enabled spic && enable pic
2357

    
2358
# OS specific
2359
case $target_os in
2360
    haiku)
2361
        prefix_default="/boot/common"
2362
        network_extralibs="-lnetwork"
2363
        host_libs=
2364
        ;;
2365
    sunos)
2366
        FFSERVERLDFLAGS=""
2367
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2368
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2369
        network_extralibs="-lsocket -lnsl"
2370
        add_cppflags -D__EXTENSIONS__
2371
        nm_opts='-P -g'
2372
        ;;
2373
    netbsd)
2374
        disable symver
2375
        oss_indev_extralibs="-lossaudio"
2376
        oss_outdev_extralibs="-lossaudio"
2377
        add_cppflags -D_XOPEN_SOURCE=600
2378
        ;;
2379
    openbsd)
2380
        enable malloc_aligned
2381
        # On OpenBSD 4.5. the compiler does not use PIC unless
2382
        # explicitly using -fPIC. FFmpeg builds fine without PIC,
2383
        # however the generated executable will not do anything
2384
        # (simply quits with exit-code 1, no crash, no output).
2385
        # Thus explicitly enable PIC here.
2386
        enable pic
2387
        disable symver
2388
        SHFLAGS='-shared'
2389
        oss_indev_extralibs="-lossaudio"
2390
        oss_outdev_extralibs="-lossaudio"
2391
        ;;
2392
    dragonfly)
2393
        enable malloc_aligned
2394
        disable symver
2395
        ;;
2396
    freebsd)
2397
        enable malloc_aligned
2398
        ;;
2399
    bsd/os)
2400
        add_extralibs -lpoll -lgnugetopt
2401
        strip="strip -d"
2402
        ;;
2403
    darwin)
2404
        enable malloc_aligned
2405
        gas="gas-preprocessor.pl $cc"
2406
        enabled ppc && add_asflags -force_cpusubtype_ALL
2407
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2408
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2409
        strip="${strip} -x"
2410
        add_ldflags -Wl,-dynamic,-search_paths_first
2411
        SLIBSUF=".dylib"
2412
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2413
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2414
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2415
        objformat="macho"
2416
        enabled x86_64 && objformat="macho64"
2417
        enabled_any pic shared ||
2418
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2419
        ;;
2420
    mingw32*)
2421
        if test $target_os = "mingw32ce"; then
2422
            disable network
2423
        else
2424
            target_os=mingw32
2425
        fi
2426
        LIBTARGET=i386
2427
        if enabled x86_64; then
2428
            enable malloc_aligned
2429
            LIBTARGET="i386:x86-64"
2430
        elif enabled arm; then
2431
            LIBTARGET=arm-wince
2432
        fi
2433
        shlibdir_default="$bindir_default"
2434
        SLIBPREF=""
2435
        SLIBSUF=".dll"
2436
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2437
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2438
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2439
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2440
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2441
            install -d "$(LIBDIR)"; \
2442
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2443
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2444
        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'
2445
        objformat="win32"
2446
        dlltool="${cross_prefix}dlltool"
2447
        enable dos_paths
2448
        check_cflags -fno-common
2449
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2450
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2451
                die "ERROR: MinGW runtime version must be >= 3.15."
2452
        add_cppflags -U__STRICT_ANSI__
2453
        ;;
2454
    cygwin*)
2455
        target_os=cygwin
2456
        shlibdir_default="$bindir_default"
2457
        SLIBPREF="cyg"
2458
        SLIBSUF=".dll"
2459
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2460
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2461
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2462
        objformat="win32"
2463
        enable dos_paths
2464
        check_cflags -fno-common
2465
        ;;
2466
    *-dos|freedos|opendos)
2467
        network_extralibs="-lsocket"
2468
        objformat="coff"
2469
        enable dos_paths
2470
        ;;
2471
    linux)
2472
        enable dv1394
2473
        ;;
2474
    irix*)
2475
        target_os=irix
2476
        ranlib="echo ignoring ranlib"
2477
        ;;
2478
    os/2*)
2479
        strip="lxlite -CS"
2480
        ln_s="cp -f"
2481
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2482
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2483
        FFSERVERLDFLAGS=""
2484
        LIBSUF="_s.a"
2485
        SLIBPREF=""
2486
        SLIBSUF=".dll"
2487
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2488
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2489
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2490
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2491
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2492
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2493
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2494
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2495
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2496
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2497
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2498
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2499
        enable dos_paths
2500
        ;;
2501
    gnu/kfreebsd)
2502
        ;;
2503
    gnu)
2504
        ;;
2505
    qnx)
2506
        add_cppflags -D_QNX_SOURCE
2507
        network_extralibs="-lsocket"
2508
        ;;
2509
    none)
2510
        ;;
2511
    *)
2512
        die "Unknown OS '$target_os'."
2513
        ;;
2514
esac
2515

    
2516
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2517

    
2518
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2519

    
2520
set_default $PATHS_LIST
2521

    
2522
# we need to build at least one lib type
2523
if ! enabled_any static shared; then
2524
    cat <<EOF
2525
At least one library type must be built.
2526
Specify --enable-static to build the static libraries or --enable-shared to
2527
build the shared libraries as well. To only build the shared libraries specify
2528
--disable-static in addition to --enable-shared.
2529
EOF
2530
    exit 1;
2531
fi
2532

    
2533
disabled static && LIBNAME=""
2534

    
2535
die_license_disabled() {
2536
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2537
}
2538

    
2539
die_license_disabled gpl libx264
2540
die_license_disabled gpl libxavs
2541
die_license_disabled gpl libxvid
2542
die_license_disabled gpl postproc
2543
die_license_disabled gpl x11grab
2544

    
2545
die_license_disabled nonfree libfaac
2546

    
2547
die_license_disabled version3 libopencore_amrnb
2548
die_license_disabled version3 libopencore_amrwb
2549

    
2550
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2551

    
2552
disabled optimizations || check_cflags -fomit-frame-pointer
2553

    
2554
enable_pic() {
2555
    enable pic
2556
    add_cppflags -DPIC
2557
    add_cflags   -fPIC
2558
    add_asflags  -fPIC
2559
}
2560

    
2561
enabled pic && enable_pic
2562

    
2563
check_cc <<EOF || die "Symbol mangling check failed."
2564
int ff_extern;
2565
EOF
2566
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2567
extern_prefix=${sym%%ff_extern*}
2568

    
2569
check_cc <<EOF && enable inline_asm
2570
void foo(void) { __asm__ volatile ("" ::); }
2571
EOF
2572

    
2573
_restrict=
2574
for restrict_keyword in restrict __restrict__ __restrict; do
2575
    check_cc <<EOF && _restrict=$restrict_keyword && break
2576
void foo(char * $restrict_keyword p);
2577
EOF
2578
done
2579

    
2580
check_cc <<EOF && enable attribute_packed
2581
struct { int x; } __attribute__((packed)) x;
2582
EOF
2583

    
2584
check_cc <<EOF && enable attribute_may_alias
2585
union { int x; } __attribute__((may_alias)) x;
2586
EOF
2587

    
2588
check_cc <<EOF || die "endian test failed"
2589
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2590
EOF
2591
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2592

    
2593
if enabled alpha; then
2594

    
2595
    check_cflags -mieee
2596

    
2597
elif enabled arm; then
2598

    
2599
    check_cflags -marm
2600
    nogas=die
2601

    
2602
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2603
        enable vfp_args
2604
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2605
        case "${cross_prefix:-$cc}" in
2606
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2607
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2608
__asm__ (".eabi_attribute 28, 1");
2609
int main(void) { return 0; }
2610
EOF
2611
        esac
2612
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2613
    fi
2614

    
2615
    # We have to check if pld is a nop and disable it.
2616
    check_asm pld '"pld [r0]"'
2617

    
2618
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2619
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2620
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2621
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2622
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2623
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2624

    
2625
    enabled_all armv6t2 shared !pic && enable_pic
2626

    
2627
elif enabled mips; then
2628

    
2629
    check_asm loongson '"dmult.g $1, $2, $3"'
2630
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2631

    
2632
elif enabled ppc; then
2633

    
2634
    enable local_aligned_8 local_aligned_16
2635

    
2636
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2637
    check_asm ibm_asm   '"add 0, 0, 0"'
2638
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2639
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2640

    
2641
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2642
    if enabled altivec; then
2643
        nogas=warn
2644
        check_cflags -maltivec -mabi=altivec &&
2645
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2646
        check_cflags -faltivec
2647

    
2648
        # check if our compiler supports Motorola AltiVec C API
2649
        check_cc <<EOF || disable altivec
2650
$inc_altivec_h
2651
int main(void) {
2652
    vector signed int v1, v2, v3;
2653
    v1 = vec_add(v2,v3);
2654
    return 0;
2655
}
2656
EOF
2657

    
2658
        # check if our compiler supports braces for vector declarations
2659
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2660
$inc_altivec_h
2661
int main (void) { (vector int) {1}; return 0; }
2662
EOF
2663
    fi
2664

    
2665
elif enabled sparc; then
2666

    
2667
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2668
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2669

    
2670
elif enabled x86; then
2671

    
2672
    enable local_aligned_8 local_aligned_16
2673

    
2674
    # check whether EBP is available on x86
2675
    # As 'i' is stored on the stack, this program will crash
2676
    # if the base pointer is used to access it because the
2677
    # base pointer is cleared in the inline assembly code.
2678
    check_exec_crash <<EOF && enable ebp_available
2679
    volatile int i=0;
2680
    __asm__ volatile (
2681
        "xorl %%ebp, %%ebp"
2682
    ::: "%ebp");
2683
    return i;
2684
EOF
2685

    
2686
    # check whether EBX is available on x86
2687
    check_asm ebx_available '""::"b"(0)' &&
2688
        check_asm ebx_available '"":::"%ebx"'
2689

    
2690
    # check whether xmm clobbers are supported
2691
    check_asm xmm_clobbers '"":::"%xmm0"'
2692

    
2693
    # check whether more than 10 operands are supported
2694
    check_cc <<EOF && enable ten_operands
2695
int main(void) {
2696
    int x=0;
2697
    __asm__ volatile(
2698
        ""
2699
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2700
    );
2701
    return 0;
2702
}
2703
EOF
2704

    
2705
    # check whether binutils is new enough to compile SSSE3/MMX2
2706
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2707
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2708

    
2709
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2710

    
2711
    if ! disabled_any asm mmx yasm; then
2712
        if check_cmd $yasmexe --version; then
2713
            enabled x86_64 && yasm_extra="-m amd64"
2714
            yasm_debug="-g dwarf2"
2715
        elif check_cmd nasm -v; then
2716
            yasmexe=nasm
2717
            yasm_debug="-g -F dwarf"
2718
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2719
        fi
2720

    
2721
        YASMFLAGS="-f $objformat $yasm_extra"
2722
        enabled pic               && append YASMFLAGS "-DPIC"
2723
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2724
        case "$objformat" in
2725
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2726
        esac
2727

    
2728
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2729
            die "yasm not found, use --disable-yasm for a crippled build"
2730
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2731
    fi
2732

    
2733
    case "$cpu" in
2734
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2735
            disable fast_clz
2736
        ;;
2737
    esac
2738

    
2739
fi
2740

    
2741
if enabled asm; then
2742
    as=${gas:=$as}
2743
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2744
        $nogas "GNU assembler not found, install gas-preprocessor"
2745
fi
2746

    
2747
check_ldflags -Wl,--as-needed
2748

    
2749
if check_func dlopen; then
2750
    ldl=
2751
elif check_func dlopen -ldl; then
2752
    ldl=-ldl
2753
fi
2754

    
2755
if enabled network; then
2756
    check_type "sys/types.h sys/socket.h" socklen_t
2757
    check_type netdb.h "struct addrinfo"
2758
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2759
    check_type netinet/in.h "struct sockaddr_in6"
2760
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2761
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2762
    # Prefer arpa/inet.h over winsock2
2763
    if check_header arpa/inet.h ; then
2764
        check_func closesocket
2765
    elif check_header winsock2.h ; then
2766
        check_func_headers winsock2.h closesocket -lws2 && \
2767
            network_extralibs="-lws2" || \
2768
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2769
            network_extralibs="-lws2_32"; }
2770
        check_type ws2tcpip.h socklen_t
2771
        check_type ws2tcpip.h "struct addrinfo"
2772
        check_type ws2tcpip.h "struct ipv6_mreq"
2773
        check_type ws2tcpip.h "struct sockaddr_in6"
2774
        check_type ws2tcpip.h "struct sockaddr_storage"
2775
        check_struct winsock2.h "struct sockaddr" sa_len
2776
    else
2777
        disable network
2778
    fi
2779
fi
2780

    
2781
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2782
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2783

    
2784
check_func  fcntl
2785
check_func  fork
2786
check_func  getaddrinfo $network_extralibs
2787
check_func  gethrtime
2788
check_func  getrusage
2789
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2790
check_func  inet_aton $network_extralibs
2791
check_func  isatty
2792
check_func  localtime_r
2793
check_func  ${malloc_prefix}memalign            && enable memalign
2794
check_func  mkstemp
2795
check_func  mmap
2796
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2797
check_func  setrlimit
2798
check_func  strerror_r
2799
check_func  strtok_r
2800
check_func_headers conio.h kbhit
2801
check_func_headers io.h setmode
2802
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2803
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2804
check_func_headers windows.h GetProcessTimes
2805
check_func_headers windows.h MapViewOfFile
2806
check_func_headers windows.h VirtualAlloc
2807

    
2808
check_header dlfcn.h
2809
check_header dxva2api.h
2810
check_header libcrystalhd/libcrystalhd_if.h
2811
check_header malloc.h
2812
check_header poll.h
2813
check_header sys/mman.h
2814
check_header sys/resource.h
2815
check_header sys/select.h
2816
check_header termios.h
2817
check_header vdpau/vdpau.h
2818
check_header vdpau/vdpau_x11.h
2819
check_header X11/extensions/XvMClib.h
2820

    
2821
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2822

    
2823
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2824
     enabled_any $need_memalign ; then
2825
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2826
fi
2827

    
2828
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2829
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2830

    
2831
# check for some common methods of building with pthread support
2832
# do this before the optional library checks as some of them require pthreads
2833
if ! disabled pthreads && ! enabled w32threads; then
2834
    enable pthreads
2835
    if check_func pthread_create; then
2836
        :
2837
    elif check_func pthread_create -pthread; then
2838
        add_cflags -pthread
2839
        add_extralibs -pthread
2840
    elif check_func pthread_create -pthreads; then
2841
        add_cflags -pthreads
2842
        add_extralibs -pthreads
2843
    elif check_func pthread_create -lpthreadGC2; then
2844
        add_extralibs -lpthreadGC2
2845
    elif ! check_lib pthread.h pthread_create -lpthread; then
2846
        disable pthreads
2847
    fi
2848
fi
2849

    
2850
for thread in $THREADS_LIST; do
2851
    if enabled $thread; then
2852
        test -n "$thread_type" &&
2853
            die "ERROR: Only one thread type must be selected." ||
2854
            thread_type="$thread"
2855
    fi
2856
done
2857

    
2858
check_lib math.h sin -lm
2859
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2860

    
2861
check_mathfunc exp2
2862
check_mathfunc exp2f
2863
check_mathfunc llrint
2864
check_mathfunc llrintf
2865
check_mathfunc log2
2866
check_mathfunc log2f
2867
check_mathfunc lrint
2868
check_mathfunc lrintf
2869
check_mathfunc round
2870
check_mathfunc roundf
2871
check_mathfunc truncf
2872

    
2873
# these are off by default, so fail if requested and not available
2874
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2875
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2876
enabled libdirac   && require_pkg_config dirac                          \
2877
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2878
    "dirac_decoder_init dirac_encoder_init"
2879
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2880
enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2881
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2882
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2883
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2884
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2885
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2886
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2887
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2888
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2889
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2890
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2891
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2892
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2893
enabled libvpx     && {
2894
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2895
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2896
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2897
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2898
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2899
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2900
                        die "ERROR: libx264 version must be >= 0.99."; }
2901
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2902
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2903
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2904

    
2905
# libdc1394 check
2906
if enabled libdc1394; then
2907
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2908
        enable libdc1394_2; } ||
2909
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2910
        enable libdc1394_1; } ||
2911
    die "ERROR: No version of libdc1394 found "
2912
fi
2913

    
2914
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2915
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2916
    enable sdl &&
2917
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2918
fi
2919

    
2920
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2921

    
2922
check_header linux/fb.h
2923
check_header linux/videodev.h
2924
check_header linux/videodev2.h
2925
check_header sys/videoio.h
2926

    
2927
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2928
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2929
# w32api 3.12 had it defined wrong
2930
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2931

    
2932
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2933
{ check_header dev/bktr/ioctl_meteor.h &&
2934
  check_header dev/bktr/ioctl_bt848.h; } ||
2935
{ check_header machine/ioctl_meteor.h &&
2936
  check_header machine/ioctl_bt848.h; } ||
2937
{ check_header dev/video/meteor/ioctl_meteor.h &&
2938
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2939
check_header dev/ic/bt8xx.h
2940

    
2941
check_header sndio.h
2942
check_header sys/soundcard.h
2943
check_header soundcard.h
2944

    
2945
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2946

    
2947
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2948

    
2949
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2950

    
2951
enabled x11grab                         &&
2952
check_header X11/Xlib.h                 &&
2953
check_header X11/extensions/XShm.h      &&
2954
check_header X11/extensions/Xfixes.h    &&
2955
check_func XOpenDisplay -lX11           &&
2956
check_func XShmCreateImage -lX11 -lXext &&
2957
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2958

    
2959
if ! disabled vaapi; then
2960
    check_lib va/va.h vaInitialize -lva && {
2961
        check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2962
        warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2963
    } || disable vaapi
2964
fi
2965

    
2966
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2967
check_cpp_condition \
2968
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2969
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2970
      disable vdpau; }
2971
fi
2972

    
2973
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2974

    
2975
# add some useful compiler flags if supported
2976
check_cflags -Wdeclaration-after-statement
2977
check_cflags -Wall
2978
check_cflags -Wno-parentheses
2979
check_cflags -Wno-switch
2980
check_cflags -Wdisabled-optimization
2981
check_cflags -Wpointer-arith
2982
check_cflags -Wredundant-decls
2983
check_cflags -Wno-pointer-sign
2984
check_cflags -Wcast-qual
2985
check_cflags -Wwrite-strings
2986
check_cflags -Wtype-limits
2987
check_cflags -Wundef
2988
check_cflags -Wmissing-prototypes
2989
enabled extra_warnings && check_cflags -Winline
2990

    
2991
# add some linker flags
2992
check_ldflags -Wl,--warn-common
2993
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'
2994
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2995

    
2996
echo "X{};" > $TMPV
2997
if test_ldflags -Wl,--version-script,$TMPV; then
2998
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2999
    check_cc <<EOF && enable symver_asm_label
3000
void ff_foo(void) __asm__ ("av_foo@VERSION");
3001
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3002
EOF
3003
    check_cc <<EOF && enable symver_gnu_asm
3004
__asm__(".symver ff_foo,av_foo@VERSION");
3005
void ff_foo(void) {}
3006
EOF
3007
fi
3008

    
3009
if enabled small; then
3010
    add_cflags $size_cflags
3011
    optimizations="small"
3012
elif enabled optimizations; then
3013
    add_cflags $speed_cflags
3014
else
3015
    add_cflags $noopt_cflags
3016
fi
3017
check_cflags -fno-math-errno
3018
check_cflags -fno-signed-zeros
3019

    
3020
if enabled icc; then
3021
    # Just warnings, no remarks
3022
    check_cflags -w1
3023
    # -wd: Disable following warnings
3024
    # 144, 167, 556: -Wno-pointer-sign
3025
    # 1292: attribute "foo" ignored
3026
    # 10006: ignoring unknown option -fno-signed-zeros
3027
    # 10148: ignoring unknown option -Wno-parentheses
3028
    # 10156: ignoring option '-W'; no argument required
3029
    check_cflags -wd144,167,556,1292,10006,10148,10156
3030
    # 11030: Warning unknown option --as-needed
3031
    # 10156: ignoring option '-export'; no argument required
3032
    check_ldflags -wd10156,11030
3033
    # Allow to compile with optimizations
3034
    check_ldflags -march=$cpu
3035
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3036
    enable ebp_available
3037
    if enabled x86_32; then
3038
        test ${icc_version%%.*} -ge 11 && \
3039
            check_cflags -falign-stack=maintain-16-byte || \
3040
            disable aligned_stack
3041
    fi
3042
elif enabled ccc; then
3043
    # disable some annoying warnings
3044
    add_cflags -msg_disable cvtu32to64
3045
    add_cflags -msg_disable embedcomment
3046
    add_cflags -msg_disable needconstext
3047
    add_cflags -msg_disable nomainieee
3048
    add_cflags -msg_disable ptrmismatch1
3049
    add_cflags -msg_disable unreachcode
3050
elif enabled gcc; then
3051
    check_cflags -fno-tree-vectorize
3052
    check_cflags -Werror=implicit-function-declaration
3053
    check_cflags -Werror=missing-prototypes
3054
elif enabled llvm_gcc; then
3055
    check_cflags -mllvm -stack-alignment=16
3056
elif enabled clang; then
3057
    check_cflags -mllvm -stack-alignment=16
3058
    check_cflags -Qunused-arguments
3059
elif enabled armcc; then
3060
    # 2523: use of inline assembler is deprecated
3061
    add_cflags -W${armcc_opt},--diag_suppress=2523
3062
    add_cflags -W${armcc_opt},--diag_suppress=1207
3063
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3064
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3065
elif enabled tms470; then
3066
    add_cflags -pds=824 -pds=837
3067
elif enabled pathscale; then
3068
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3069
fi
3070

    
3071
enabled_any $THREADS_LIST      && enable threads
3072

    
3073
check_deps $CONFIG_LIST       \
3074
           $CONFIG_EXTRA      \
3075
           $HAVE_LIST         \
3076
           $DECODER_LIST      \
3077
           $ENCODER_LIST      \
3078
           $HWACCEL_LIST      \
3079
           $PARSER_LIST       \
3080
           $BSF_LIST          \
3081
           $DEMUXER_LIST      \
3082
           $MUXER_LIST        \
3083
           $FILTER_LIST       \
3084
           $INDEV_LIST        \
3085
           $OUTDEV_LIST       \
3086
           $PROTOCOL_LIST     \
3087
           $ACODEC_TESTS      \
3088
           $VCODEC_TESTS      \
3089
           $LAVF_TESTS        \
3090
           $LAVFI_TESTS       \
3091
           $SEEK_TESTS        \
3092

    
3093
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3094

    
3095
echo "install prefix            $prefix"
3096
echo "source path               $source_path"
3097
echo "C compiler                $cc"
3098
echo "ARCH                      $arch ($cpu)"
3099
if test "$build_suffix" != ""; then
3100
    echo "build suffix              $build_suffix"
3101
fi
3102
if test "$extra_version" != ""; then
3103
    echo "version string suffix     $extra_version"
3104
fi
3105
echo "big-endian                ${bigendian-no}"
3106
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3107
if enabled x86; then
3108
    echo "yasm                      ${yasm-no}"
3109
    echo "MMX enabled               ${mmx-no}"
3110
    echo "MMX2 enabled              ${mmx2-no}"
3111
    echo "3DNow! enabled            ${amd3dnow-no}"
3112
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3113
    echo "SSE enabled               ${sse-no}"
3114
    echo "SSSE3 enabled             ${ssse3-no}"
3115
    echo "CMOV enabled              ${cmov-no}"
3116
    echo "CMOV is fast              ${fast_cmov-no}"
3117
    echo "EBX available             ${ebx_available-no}"
3118
    echo "EBP available             ${ebp_available-no}"
3119
    echo "10 operands supported     ${ten_operands-no}"
3120
fi
3121
if enabled arm; then
3122
    echo "ARMv5TE enabled           ${armv5te-no}"
3123
    echo "ARMv6 enabled             ${armv6-no}"
3124
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3125
    echo "ARM VFP enabled           ${armvfp-no}"
3126
    echo "IWMMXT enabled            ${iwmmxt-no}"
3127
    echo "NEON enabled              ${neon-no}"
3128
fi
3129
if enabled mips; then
3130
    echo "MMI enabled               ${mmi-no}"
3131
fi
3132
if enabled ppc; then
3133
    echo "AltiVec enabled           ${altivec-no}"
3134
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3135
    echo "dcbzl available           ${dcbzl-no}"
3136
fi
3137
if enabled sparc; then
3138
    echo "VIS enabled               ${vis-no}"
3139
fi
3140
echo "debug symbols             ${debug-no}"
3141
echo "strip symbols             ${stripping-no}"
3142
echo "optimizations             ${optimizations-no}"
3143
echo "static                    ${static-no}"
3144
echo "shared                    ${shared-no}"
3145
echo "postprocessing support    ${postproc-no}"
3146
echo "new filter support        ${avfilter-no}"
3147
echo "network support           ${network-no}"
3148
echo "threading support         ${thread_type-no}"
3149
echo "SDL support               ${sdl-no}"
3150
echo "Sun medialib support      ${mlib-no}"
3151
echo "AVISynth enabled          ${avisynth-no}"
3152
echo "frei0r enabled            ${frei0r-no}"
3153
echo "libdc1394 support         ${libdc1394-no}"
3154
echo "libdirac enabled          ${libdirac-no}"
3155
echo "libfaac enabled           ${libfaac-no}"
3156
echo "libgsm enabled            ${libgsm-no}"
3157
echo "libmp3lame enabled        ${libmp3lame-no}"
3158
echo "libnut enabled            ${libnut-no}"
3159
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3160
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3161
echo "libopencv support         ${libopencv-no}"
3162
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3163
echo "librtmp enabled           ${librtmp-no}"
3164
echo "libschroedinger enabled   ${libschroedinger-no}"
3165
echo "libspeex enabled          ${libspeex-no}"
3166
echo "libtheora enabled         ${libtheora-no}"
3167
echo "libvorbis enabled         ${libvorbis-no}"
3168
echo "libvpx enabled            ${libvpx-no}"
3169
echo "libx264 enabled           ${libx264-no}"
3170
echo "libxavs enabled           ${libxavs-no}"
3171
echo "libxvid enabled           ${libxvid-no}"
3172
echo "zlib enabled              ${zlib-no}"
3173
echo "bzlib enabled             ${bzlib-no}"
3174
echo
3175

    
3176
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3177
    echo "Enabled ${type}s:"
3178
    eval list=\$$(toupper $type)_LIST
3179
    print_enabled '_*' $list | sort | pr -r -3 -t
3180
    echo
3181
done
3182

    
3183
license="LGPL version 2.1 or later"
3184
if enabled nonfree; then
3185
    license="nonfree and unredistributable"
3186
elif enabled gplv3; then
3187
    license="GPL version 3 or later"
3188
elif enabled lgplv3; then
3189
    license="LGPL version 3 or later"
3190
elif enabled gpl; then
3191
    license="GPL version 2 or later"
3192
fi
3193

    
3194
echo "License: $license"
3195

    
3196
echo "Creating config.mak and config.h..."
3197

    
3198
# build tree in object directory if source path is different from current one
3199
if enabled source_path_used; then
3200
    DIRS="
3201
        doc
3202
        libavcodec
3203
        libavcodec/$arch
3204
        libavdevice
3205
        libavfilter
3206
        libavfilter/$arch
3207
        libavfilter/libmpcodecs
3208
        libavfilter/libmpcodecs/libvo
3209
        libavformat
3210
        libavutil
3211
        libavutil/$arch
3212
        libpostproc
3213
        libswscale
3214
        libswscale/$arch
3215
        tests
3216
        tools
3217
    "
3218
    FILES="
3219
        Makefile
3220
        common.mak
3221
        subdir.mak
3222
        doc/texi2pod.pl
3223
        libavcodec/Makefile
3224
        libavcodec/${arch}/Makefile
3225
        libavdevice/Makefile
3226
        libavfilter/Makefile
3227
        libavfilter/${arch}/Makefile
3228
        libavformat/Makefile
3229
        libavutil/Makefile
3230
        libpostproc/Makefile
3231
        libswscale/Makefile
3232
    "
3233
    map 'mkdir -p $v' $DIRS;
3234
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3235
fi
3236

    
3237
enabled stripping || strip="echo skipping strip"
3238

    
3239
config_files="$TMPH config.mak"
3240

    
3241
cat > config.mak <<EOF
3242
# Automatically generated by configure - do not modify!
3243
ifndef FFMPEG_CONFIG_MAK
3244
FFMPEG_CONFIG_MAK=1
3245
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3246
prefix=$prefix
3247
LIBDIR=\$(DESTDIR)$libdir
3248
SHLIBDIR=\$(DESTDIR)$shlibdir
3249
INCDIR=\$(DESTDIR)$incdir
3250
BINDIR=\$(DESTDIR)$bindir
3251
DATADIR=\$(DESTDIR)$datadir
3252
MANDIR=\$(DESTDIR)$mandir
3253
SRC_PATH="$source_path"
3254
SRC_PATH_BARE=$source_path
3255
BUILD_ROOT="$PWD"
3256
CC_IDENT=$cc_ident
3257
ARCH=$arch
3258
CC=$cc
3259
AS=$as
3260
LD=$ld
3261
DEPCC=$dep_cc
3262
YASM=$yasmexe
3263
YASMDEP=$yasmexe
3264
AR=$ar
3265
RANLIB=$ranlib
3266
CP=cp -p
3267
LN_S=$ln_s
3268
STRIP=$strip
3269
CPPFLAGS=$CPPFLAGS
3270
CFLAGS=$CFLAGS
3271
ASFLAGS=$ASFLAGS
3272
CC_O=$CC_O
3273
DLLTOOL=$dlltool
3274
LDFLAGS=$LDFLAGS
3275
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3276
SHFLAGS=$SHFLAGS
3277
YASMFLAGS=$YASMFLAGS
3278
BUILDSUF=$build_suffix
3279
FULLNAME=$FULLNAME
3280
LIBPREF=$LIBPREF
3281
LIBSUF=$LIBSUF
3282
LIBNAME=$LIBNAME
3283
SLIBPREF=$SLIBPREF
3284
SLIBSUF=$SLIBSUF
3285
EXESUF=$EXESUF
3286
EXTRA_VERSION=$extra_version
3287
DEPFLAGS=$DEPFLAGS
3288
CCDEP=$CCDEP
3289
ASDEP=$ASDEP
3290
CC_DEPFLAGS=$CC_DEPFLAGS
3291
AS_DEPFLAGS=$AS_DEPFLAGS
3292
HOSTCC=$host_cc
3293
HOSTCFLAGS=$host_cflags
3294
HOSTEXESUF=$HOSTEXESUF
3295
HOSTLDFLAGS=$host_ldflags
3296
HOSTLIBS=$host_libs
3297
TARGET_EXEC=$target_exec
3298
TARGET_PATH=$target_path
3299
SDL_LIBS=$sdl_libs
3300
SDL_CFLAGS=$sdl_cflags
3301
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3302
EXTRALIBS=$extralibs
3303
INSTALL=install
3304
LIBTARGET=${LIBTARGET}
3305
SLIBNAME=${SLIBNAME}
3306
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3307
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3308
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3309
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3310
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3311
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3312
SAMPLES=${samples:-\$(FATE_SAMPLES)}
3313
EOF
3314

    
3315
get_version(){
3316
    name=$1
3317
    file=$source_path/$2
3318
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3319
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3320
    lcname=$(tolower $name)
3321
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3322
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3323
}
3324

    
3325
get_version LIBSWSCALE  libswscale/swscale.h
3326
get_version LIBPOSTPROC libpostproc/postprocess.h
3327
get_version LIBAVCODEC  libavcodec/version.h
3328
get_version LIBAVDEVICE libavdevice/avdevice.h
3329
get_version LIBAVFORMAT libavformat/version.h
3330
get_version LIBAVUTIL   libavutil/avutil.h
3331
get_version LIBAVFILTER libavfilter/avfilter.h
3332

    
3333
cat > $TMPH <<EOF
3334
/* Automatically generated by configure - do not modify! */
3335
#ifndef FFMPEG_CONFIG_H
3336
#define FFMPEG_CONFIG_H
3337
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3338
#define FFMPEG_LICENSE "$(c_escape $license)"
3339
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3340
#define CC_TYPE "$cc_type"
3341
#define CC_VERSION $cc_version
3342
#define restrict $_restrict
3343
#define EXTERN_PREFIX "${extern_prefix}"
3344
#define EXTERN_ASM ${extern_prefix}
3345
#define SLIBSUF "$SLIBSUF"
3346
EOF
3347

    
3348
test -n "$malloc_prefix" &&
3349
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3350

    
3351
if enabled small || disabled optimizations; then
3352
    echo "#undef  av_always_inline"  >> $TMPH
3353
    if enabled small; then
3354
        echo "#define av_always_inline inline"  >> $TMPH
3355
    else
3356
        echo "#define av_always_inline av_unused"  >> $TMPH
3357
    fi
3358
fi
3359

    
3360
if enabled yasm; then
3361
    append config_files $TMPASM
3362
    printf '' >$TMPASM
3363
fi
3364

    
3365
print_config ARCH_   "$config_files" $ARCH_LIST
3366
print_config HAVE_   "$config_files" $HAVE_LIST
3367
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3368
                                     $CONFIG_EXTRA      \
3369
                                     $DECODER_LIST      \
3370
                                     $ENCODER_LIST      \
3371
                                     $HWACCEL_LIST      \
3372
                                     $PARSER_LIST       \
3373
                                     $BSF_LIST          \
3374
                                     $DEMUXER_LIST      \
3375
                                     $MUXER_LIST        \
3376
                                     $FILTER_LIST       \
3377
                                     $PROTOCOL_LIST     \
3378
                                     $INDEV_LIST        \
3379
                                     $OUTDEV_LIST       \
3380

    
3381
cat >>config.mak <<EOF
3382
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3383
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3384
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3385
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3386
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3387
EOF
3388

    
3389
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3390
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3391

    
3392
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3393
cp_if_changed $TMPH config.h
3394
touch .config
3395

    
3396
enabled yasm && cp_if_changed $TMPASM config.asm
3397

    
3398
cat > $TMPH <<EOF
3399
/* Generated by ffconf */
3400
#ifndef AVUTIL_AVCONFIG_H
3401
#define AVUTIL_AVCONFIG_H
3402
EOF
3403

    
3404
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3405

    
3406
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3407

    
3408
cp_if_changed $TMPH libavutil/avconfig.h
3409

    
3410
test -n "$WARNINGS" && printf "\n$WARNINGS"
3411

    
3412
# build pkg-config files
3413

    
3414
pkgconfig_generate(){
3415
name=$1
3416
shortname=${name#lib}${build_suffix}
3417
comment=$2
3418
version=$3
3419
libs=$4
3420
requires=$5
3421
enabled ${name#lib} || return 0
3422
cat <<EOF > $name/$name.pc
3423
prefix=$prefix
3424
exec_prefix=\${prefix}
3425
libdir=$libdir
3426
includedir=$incdir
3427

    
3428
Name: $name
3429
Description: $comment
3430
Version: $version
3431
Requires: $(enabled shared || echo $requires)
3432
Requires.private: $(enabled shared && echo $requires)
3433
Conflicts:
3434
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3435
Libs.private: $(enabled shared && echo $libs)
3436
Cflags: -I\${includedir}
3437
EOF
3438
cat <<EOF > $name/$name-uninstalled.pc
3439
prefix=
3440
exec_prefix=
3441
libdir=\${pcfiledir}
3442
includedir=${source_path}
3443

    
3444
Name: $name
3445
Description: $comment
3446
Version: $version
3447
Requires: $requires
3448
Conflicts:
3449
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3450
Cflags: -I\${includedir}
3451
EOF
3452
}
3453

    
3454
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3455
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3456
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3457
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3458
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3459
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3460
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"