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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:
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  --help                   print this message
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  --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]
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  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
84
  --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
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  --enable-encoder=NAME    enable encoder NAME
119
  --disable-encoders       disable all encoders
120
  --disable-decoder=NAME   disable decoder NAME
121
  --enable-decoder=NAME    enable decoder NAME
122
  --disable-decoders       disable all decoders
123
  --disable-hwaccel=NAME   disable hwaccel NAME
124
  --enable-hwaccel=NAME    enable hwaccel NAME
125
  --disable-hwaccels       disable all hwaccels
126
  --disable-muxer=NAME     disable muxer NAME
127
  --enable-muxer=NAME      enable muxer NAME
128
  --disable-muxers         disable all muxers
129
  --disable-demuxer=NAME   disable demuxer NAME
130
  --enable-demuxer=NAME    enable demuxer NAME
131
  --disable-demuxers       disable all demuxers
132
  --enable-parser=NAME     enable parser NAME
133
  --disable-parser=NAME    disable parser NAME
134
  --disable-parsers        disable all parsers
135
  --enable-bsf=NAME        enable bitstream filter NAME
136
  --disable-bsf=NAME       disable bitstream filter NAME
137
  --disable-bsfs           disable all bitstream filters
138
  --enable-protocol=NAME   enable protocol NAME
139
  --disable-protocol=NAME  disable protocol NAME
140
  --disable-protocols      disable all protocols
141
  --disable-indev=NAME     disable input device NAME
142
  --disable-outdev=NAME    disable output device NAME
143
  --disable-indevs         disable input devices
144
  --disable-outdevs        disable output devices
145
  --disable-devices        disable all devices
146
  --enable-filter=NAME     enable filter NAME
147
  --disable-filter=NAME    disable filter NAME
148
  --disable-filters        disable all filters
149
  --list-decoders          show all available decoders
150
  --list-encoders          show all available encoders
151
  --list-hwaccels          show all available hardware accelerators
152
  --list-muxers            show all available muxers
153
  --list-demuxers          show all available demuxers
154
  --list-parsers           show all available parsers
155
  --list-protocols         show all available protocols
156
  --list-bsfs              show all available bitstream filters
157
  --list-indevs            show all available input devices
158
  --list-outdevs           show all available output devices
159
  --list-filters           show all available filters
160

    
161
External library support:
162
  --enable-avisynth        enable reading of AVISynth script files [no]
163
  --enable-bzlib           enable bzlib [autodetect]
164
  --enable-frei0r          enable frei0r video filtering
165
  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
166
  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
167
  --enable-libopencv       enable video filtering via libopencv [no]
168
  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
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                           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,
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                           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
  --samples=PATH           location of test samples for FATE, if not set use
247
                           \$FATE_SAMPLES at make invocation time.
248

    
249
NOTE: Object files are built at the place where configure is launched.
250
EOF
251
  exit 0
252
}
253

    
254
quotes='""'
255

    
256
log(){
257
    echo "$@" >> $logfile
258
}
259

    
260
log_file(){
261
    log BEGIN $1
262
    pr -n -t $1 >> $logfile
263
    log END $1
264
}
265

    
266
echolog(){
267
    log "$@"
268
    echo "$@"
269
}
270

    
271
warn(){
272
    log "WARNING: $*"
273
    WARNINGS="${WARNINGS}WARNING: $*\n"
274
}
275

    
276
die(){
277
    echolog "$@"
278
    cat <<EOF
279

    
280
If you think configure made a mistake, make sure you are using the latest
281
version from Git.  If the latest version fails, report the problem to the
282
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
283
EOF
284
    if disabled logging; then
285
        cat <<EOF
286
Rerun configure with logging enabled (do not use --disable-logging), and
287
include the log this produces with your report.
288
EOF
289
    else
290
cat <<EOF
291
Include the log file "$logfile" produced by configure as this will help
292
solving the problem.
293
EOF
294
    fi
295
    exit 1
296
}
297

    
298
# Avoid locale weirdness, besides we really just want to translate ASCII.
299
toupper(){
300
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
301
}
302

    
303
tolower(){
304
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
305
}
306

    
307
c_escape(){
308
    echo "$*" | sed 's/["\\]/\\\0/g'
309
}
310

    
311
sh_quote(){
312
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
313
    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
314
    echo "$v"
315
}
316

    
317
cleanws(){
318
    echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
319
}
320

    
321
filter(){
322
    pat=$1
323
    shift
324
    for v; do
325
        eval "case $v in $pat) echo $v ;; esac"
326
    done
327
}
328

    
329
filter_out(){
330
    pat=$1
331
    shift
332
    for v; do
333
        eval "case $v in $pat) ;; *) echo $v ;; esac"
334
    done
335
}
336

    
337
map(){
338
    m=$1
339
    shift
340
    for v; do eval $m; done
341
}
342

    
343
set_all(){
344
    value=$1
345
    shift
346
    for var in $*; do
347
        eval $var=$value
348
    done
349
}
350

    
351
set_weak(){
352
    value=$1
353
    shift
354
    for var; do
355
        eval : \${$var:=$value}
356
    done
357
}
358

    
359
set_safe(){
360
    var=$1
361
    shift
362
    eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
363
}
364

    
365
get_safe(){
366
    eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
367
}
368

    
369
pushvar(){
370
    for var in $*; do
371
        eval level=\${${var}_level:=0}
372
        eval ${var}_${level}="\$$var"
373
        eval ${var}_level=$(($level+1))
374
    done
375
}
376

    
377
popvar(){
378
    for var in $*; do
379
        eval level=\${${var}_level:-0}
380
        test $level = 0 && continue
381
        eval level=$(($level-1))
382
        eval $var="\${${var}_${level}}"
383
        eval ${var}_level=$level
384
        eval unset ${var}_${level}
385
    done
386
}
387

    
388
enable(){
389
    set_all yes $*
390
}
391

    
392
disable(){
393
    set_all no $*
394
}
395

    
396
enable_weak(){
397
    set_weak yes $*
398
}
399

    
400
disable_weak(){
401
    set_weak no $*
402
}
403

    
404
enable_safe(){
405
    for var; do
406
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
407
    done
408
}
409

    
410
disable_safe(){
411
    for var; do
412
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
413
    done
414
}
415

    
416
do_enable_deep(){
417
    for var; do
418
        enabled $var && continue
419
        eval sel="\$${var}_select"
420
        eval sgs="\$${var}_suggest"
421
        pushvar var sgs
422
        enable_deep $sel
423
        popvar sgs
424
        enable_deep_weak $sgs
425
        popvar var
426
    done
427
}
428

    
429
enable_deep(){
430
    do_enable_deep $*
431
    enable $*
432
}
433

    
434
enable_deep_weak(){
435
    do_enable_deep $*
436
    enable_weak $*
437
}
438

    
439
enabled(){
440
    test "${1#!}" = "$1" && op== || op=!=
441
    eval test "x\$${1#!}" $op "xyes"
442
}
443

    
444
disabled(){
445
    test "${1#!}" = "$1" && op== || op=!=
446
    eval test "x\$${1#!}" $op "xno"
447
}
448

    
449
enabled_all(){
450
    for opt; do
451
        enabled $opt || return 1
452
    done
453
}
454

    
455
disabled_all(){
456
    for opt; do
457
        disabled $opt || return 1
458
    done
459
}
460

    
461
enabled_any(){
462
    for opt; do
463
        enabled $opt && return 0
464
    done
465
}
466

    
467
disabled_any(){
468
    for opt; do
469
        disabled $opt && return 0
470
    done
471
    return 1
472
}
473

    
474
set_default(){
475
    for opt; do
476
        eval : \${$opt:=\$${opt}_default}
477
    done
478
}
479

    
480
is_in(){
481
    value=$1
482
    shift
483
    for var in $*; do
484
        [ $var = $value ] && return 0
485
    done
486
    return 1
487
}
488

    
489
check_deps(){
490
    for cfg; do
491
        cfg="${cfg#!}"
492
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
493
        disabled ${cfg}_checking && continue
494
        enable ${cfg}_checking
495

    
496
        eval dep_all="\$${cfg}_deps"
497
        eval dep_any="\$${cfg}_deps_any"
498
        eval dep_sel="\$${cfg}_select"
499
        eval dep_sgs="\$${cfg}_suggest"
500
        eval dep_ifa="\$${cfg}_if"
501
        eval dep_ifn="\$${cfg}_if_any"
502

    
503
        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
504
        check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
505
        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
506

    
507
        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
508
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
509
        enabled_all  $dep_all || disable $cfg
510
        enabled_any  $dep_any || disable $cfg
511
        disabled_any $dep_sel && disable $cfg
512

    
513
        if enabled $cfg; then
514
            eval dep_extralibs="\$${cfg}_extralibs"
515
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
516
            enable_deep $dep_sel
517
            enable_deep_weak $dep_sgs
518
        fi
519

    
520
        disable ${cfg}_checking
521
    done
522
}
523

    
524
print_config_h(){
525
    enabled $1 && v=1 || v=0
526
    echo "#define $2 $v"
527
}
528

    
529
print_config_mak(){
530
    enabled $1 && v= || v=!
531
    echo "$v$2=yes"
532
}
533

    
534
print_config_asm(){
535
    enabled $1 && echo "%define $2"
536
}
537

    
538
print_config(){
539
    pfx=$1
540
    files=$2
541
    shift 2
542
    for cfg; do
543
        ucname="$(toupper $cfg)"
544
        for f in $files; do
545
            "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
546
        done
547
    done
548
}
549

    
550
print_enabled(){
551
    test "$1" = -n && end=" " && shift || end="\n"
552
    suf=$1
553
    shift
554
    for v; do
555
        enabled $v && printf "%s$end" ${v%$suf};
556
    done
557
}
558

    
559
append(){
560
    var=$1
561
    shift
562
    eval "$var=\"\$$var $*\""
563
}
564

    
565
prepend(){
566
    var=$1
567
    shift
568
    eval "$var=\"$* \$$var\""
569
}
570

    
571
add_cppflags(){
572
    append CPPFLAGS $($filter_cppflags "$@")
573
}
574

    
575
add_cflags(){
576
    append CFLAGS $($filter_cflags "$@")
577
}
578

    
579
add_asflags(){
580
    append ASFLAGS $($filter_asflags "$@")
581
}
582

    
583
add_ldflags(){
584
    append LDFLAGS "$@"
585
}
586

    
587
add_extralibs(){
588
    prepend extralibs "$@"
589
}
590

    
591
check_cmd(){
592
    log "$@"
593
    "$@" >> $logfile 2>&1
594
}
595

    
596
check_cc(){
597
    log check_cc "$@"
598
    cat > $TMPC
599
    log_file $TMPC
600
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
601
}
602

    
603
check_cpp(){
604
    log check_cpp "$@"
605
    cat > $TMPC
606
    log_file $TMPC
607
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
608
}
609

    
610
check_as(){
611
    log check_as "$@"
612
    cat > $TMPC
613
    log_file $TMPC
614
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
615
}
616

    
617
check_asm(){
618
    log check_asm "$@"
619
    name="$1"
620
    code="$2"
621
    shift 2
622
    disable $name
623
    check_as "$@" <<EOF && enable $name
624
void foo(void){ __asm__ volatile($code); }
625
EOF
626
}
627

    
628
check_yasm(){
629
    log check_yasm "$@"
630
    echo "$1" > $TMPS
631
    log_file $TMPS
632
    shift 1
633
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
634
}
635

    
636
check_ld(){
637
    log check_ld "$@"
638
    flags=''
639
    libs=''
640
    for f; do
641
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
642
    done
643
    check_cc $($filter_cflags $flags) || return
644
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
645
}
646

    
647
check_cppflags(){
648
    log check_cppflags "$@"
649
    set -- $($filter_cppflags "$@")
650
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
651
int x;
652
EOF
653
}
654

    
655
check_cflags(){
656
    log check_cflags "$@"
657
    set -- $($filter_cflags "$@")
658
    check_cc "$@" <<EOF && append CFLAGS "$@"
659
int x;
660
EOF
661
}
662

    
663
test_ldflags(){
664
    log test_ldflags "$@"
665
    check_ld "$@" <<EOF
666
int main(void){ return 0; }
667
EOF
668
}
669

    
670
check_ldflags(){
671
    log check_ldflags "$@"
672
    test_ldflags "$@" && add_ldflags "$@"
673
}
674

    
675
check_header(){
676
    log check_header "$@"
677
    header=$1
678
    shift
679
    disable_safe $header
680
    check_cpp "$@" <<EOF && enable_safe $header
681
#include <$header>
682
int x;
683
EOF
684
}
685

    
686
check_func(){
687
    log check_func "$@"
688
    func=$1
689
    shift
690
    disable $func
691
    check_ld "$@" <<EOF && enable $func
692
extern int $func();
693
int main(void){ $func(); }
694
EOF
695
}
696

    
697
check_mathfunc(){
698
    log check_mathfunc "$@"
699
    func=$1
700
    shift
701
    disable $func
702
    check_ld "$@" <<EOF && enable $func
703
#include <math.h>
704
float foo(float f) { return $func(f); }
705
int main(void){ return 0; }
706
EOF
707
}
708

    
709
check_func_headers(){
710
    log check_func_headers "$@"
711
    headers=$1
712
    funcs=$2
713
    shift 2
714
    {
715
        for hdr in $headers; do
716
            echo "#include <$hdr>"
717
        done
718
        for func in $funcs; do
719
            echo "long check_$func(void) { return (long) $func; }"
720
        done
721
        echo "int main(void) { return 0; }"
722
    } | check_ld "$@" && enable $funcs && enable_safe $headers
723
}
724

    
725
check_cpp_condition(){
726
    log check_cpp_condition "$@"
727
    header=$1
728
    condition=$2
729
    shift 2
730
    check_cpp $($filter_cppflags "$@") <<EOF
731
#include <$header>
732
#if !($condition)
733
#error "unsatisfied condition: $condition"
734
#endif
735
EOF
736
}
737

    
738
check_lib(){
739
    log check_lib "$@"
740
    header="$1"
741
    func="$2"
742
    shift 2
743
    check_header $header && check_func $func "$@" && add_extralibs "$@"
744
}
745

    
746
check_lib2(){
747
    log check_lib2 "$@"
748
    headers="$1"
749
    funcs="$2"
750
    shift 2
751
    check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
752
}
753

    
754
check_pkg_config(){
755
    log check_pkg_config "$@"
756
    pkg="$1"
757
    headers="$2"
758
    funcs="$3"
759
    shift 3
760
    $pkg_config --exists $pkg || return
761
    pkg_cflags=$($pkg_config --cflags $pkg)
762
    pkg_libs=$($pkg_config --libs $pkg)
763
    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
764
        set_safe ${pkg}_cflags $pkg_cflags   &&
765
        set_safe ${pkg}_libs   $pkg_libs
766
}
767

    
768
check_exec(){
769
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
770
}
771

    
772
check_exec_crash(){
773
    code=$(cat)
774

    
775
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
776
    # are safe but may not be available everywhere.  Thus we use
777
    # raise(SIGTERM) instead.  The check is run in a subshell so we
778
    # can redirect the "Terminated" message from the shell.  SIGBUS
779
    # is not defined by standard C so it is used conditionally.
780

    
781
    (check_exec "$@") >> $logfile 2>&1 <<EOF
782
#include <signal.h>
783
static void sighandler(int sig){
784
    raise(SIGTERM);
785
}
786
int main(void){
787
    signal(SIGILL, sighandler);
788
    signal(SIGFPE, sighandler);
789
    signal(SIGSEGV, sighandler);
790
#ifdef SIGBUS
791
    signal(SIGBUS, sighandler);
792
#endif
793
    { $code }
794
}
795
EOF
796
}
797

    
798
check_type(){
799
    log check_type "$@"
800
    headers=$1
801
    type=$2
802
    shift 2
803
    disable_safe "$type"
804
    incs=""
805
    for hdr in $headers; do
806
        incs="$incs
807
#include <$hdr>"
808
    done
809
    check_cc "$@" <<EOF && enable_safe "$type"
810
$incs
811
$type v;
812
EOF
813
}
814

    
815
check_struct(){
816
    log check_type "$@"
817
    headers=$1
818
    struct=$2
819
    member=$3
820
    shift 3
821
    disable_safe "${struct}_${member}"
822
    incs=""
823
    for hdr in $headers; do
824
        incs="$incs
825
#include <$hdr>"
826
    done
827
    check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
828
$incs
829
const void *p = &(($struct *)0)->$member;
830
EOF
831
}
832

    
833
require(){
834
    name="$1"
835
    header="$2"
836
    func="$3"
837
    shift 3
838
    check_lib $header $func "$@" || die "ERROR: $name not found"
839
}
840

    
841
require2(){
842
    name="$1"
843
    headers="$2"
844
    func="$3"
845
    shift 3
846
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
847
}
848

    
849
require_pkg_config(){
850
    pkg="$1"
851
    check_pkg_config "$@" || die "ERROR: $pkg not found"
852
    add_cflags    $(get_safe ${pkg}_cflags)
853
    add_extralibs $(get_safe ${pkg}_libs)
854
}
855

    
856
check_host_cc(){
857
    log check_host_cc "$@"
858
    cat > $TMPC
859
    log_file $TMPC
860
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
861
}
862

    
863
check_host_cflags(){
864
    log check_host_cflags "$@"
865
    check_host_cc "$@" <<EOF && append host_cflags "$@"
866
int x;
867
EOF
868
}
869

    
870
apply(){
871
    file=$1
872
    shift
873
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
874
}
875

    
876
cp_if_changed(){
877
    cmp -s "$1" "$2" &&
878
        echo "$2 is unchanged" ||
879
        cp -f "$1" "$2"
880
}
881

    
882
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
883
# system-dependent things.
884

    
885
COMPONENT_LIST="
886
    bsfs
887
    decoders
888
    demuxers
889
    encoders
890
    filters
891
    hwaccels
892
    indevs
893
    muxers
894
    outdevs
895
    parsers
896
    protocols
897
"
898

    
899
CONFIG_LIST="
900
    $COMPONENT_LIST
901
    aandct
902
    ac3dsp
903
    avcodec
904
    avdevice
905
    avfilter
906
    avformat
907
    avisynth
908
    bzlib
909
    crystalhd
910
    dct
911
    doc
912
    dwt
913
    dxva2
914
    fastdiv
915
    ffmpeg
916
    ffplay
917
    ffprobe
918
    ffserver
919
    fft
920
    frei0r
921
    golomb
922
    gpl
923
    gray
924
    h264dsp
925
    h264pred
926
    hardcoded_tables
927
    huffman
928
    libdc1394
929
    libdirac
930
    libfaac
931
    libfreetype
932
    libgsm
933
    libmp3lame
934
    libnut
935
    libopencore_amrnb
936
    libopencore_amrwb
937
    libopencv
938
    libopenjpeg
939
    librtmp
940
    libschroedinger
941
    libspeex
942
    libtheora
943
    libvorbis
944
    libvpx
945
    libx264
946
    libxavs
947
    libxvid
948
    lpc
949
    lsp
950
    mdct
951
    memalign_hack
952
    mlib
953
    mpegaudio_hp
954
    network
955
    nonfree
956
    pic
957
    postproc
958
    rdft
959
    rtpdec
960
    runtime_cpudetect
961
    shared
962
    sinewin
963
    small
964
    sram
965
    static
966
    swscale
967
    swscale_alpha
968
    vaapi
969
    vdpau
970
    version3
971
    x11grab
972
    zlib
973
"
974

    
975
THREADS_LIST='
976
    pthreads
977
    w32threads
978
'
979

    
980
ARCH_LIST='
981
    alpha
982
    arm
983
    avr32
984
    avr32_ap
985
    avr32_uc
986
    bfin
987
    ia64
988
    m68k
989
    mips
990
    mips64
991
    parisc
992
    ppc
993
    ppc64
994
    s390
995
    sh4
996
    sparc
997
    sparc64
998
    tomi
999
    x86
1000
    x86_32
1001
    x86_64
1002
'
1003

    
1004
ARCH_EXT_LIST='
1005
    altivec
1006
    amd3dnow
1007
    amd3dnowext
1008
    armv5te
1009
    armv6
1010
    armv6t2
1011
    armvfp
1012
    avx
1013
    iwmmxt
1014
    mmi
1015
    mmx
1016
    mmx2
1017
    neon
1018
    ppc4xx
1019
    sse
1020
    ssse3
1021
    vis
1022
'
1023

    
1024
HAVE_LIST_PUB='
1025
    bigendian
1026
    fast_unaligned
1027
'
1028

    
1029
HAVE_LIST="
1030
    $ARCH_EXT_LIST
1031
    $HAVE_LIST_PUB
1032
    $THREADS_LIST
1033
    aligned_stack
1034
    alsa_asoundlib_h
1035
    altivec_h
1036
    arpa_inet_h
1037
    attribute_may_alias
1038
    attribute_packed
1039
    bswap
1040
    closesocket
1041
    cmov
1042
    dcbzl
1043
    dev_bktr_ioctl_bt848_h
1044
    dev_bktr_ioctl_meteor_h
1045
    dev_ic_bt8xx_h
1046
    dev_video_meteor_ioctl_meteor_h
1047
    dev_video_bktr_ioctl_bt848_h
1048
    dlfcn_h
1049
    dlopen
1050
    dos_paths
1051
    ebp_available
1052
    ebx_available
1053
    exp2
1054
    exp2f
1055
    fast_64bit
1056
    fast_clz
1057
    fast_cmov
1058
    fcntl
1059
    fork
1060
    getaddrinfo
1061
    gethrtime
1062
    GetProcessMemoryInfo
1063
    GetProcessTimes
1064
    getrusage
1065
    gnu_as
1066
    struct_rusage_ru_maxrss
1067
    ibm_asm
1068
    inet_aton
1069
    inline_asm
1070
    isatty
1071
    kbhit
1072
    ldbrx
1073
    libdc1394_1
1074
    libdc1394_2
1075
    llrint
1076
    llrintf
1077
    local_aligned_16
1078
    local_aligned_8
1079
    localtime_r
1080
    log2
1081
    log2f
1082
    loongson
1083
    lrint
1084
    lrintf
1085
    lzo1x_999_compress
1086
    machine_ioctl_bt848_h
1087
    machine_ioctl_meteor_h
1088
    malloc_h
1089
    MapViewOfFile
1090
    memalign
1091
    mkstemp
1092
    mmap
1093
    pld
1094
    posix_memalign
1095
    round
1096
    roundf
1097
    sdl
1098
    sdl_video_size
1099
    setmode
1100
    sndio_h
1101
    socklen_t
1102
    soundcard_h
1103
    poll_h
1104
    setrlimit
1105
    strerror_r
1106
    strtok_r
1107
    struct_addrinfo
1108
    struct_ipv6_mreq
1109
    struct_sockaddr_in6
1110
    struct_sockaddr_sa_len
1111
    struct_sockaddr_storage
1112
    symver
1113
    symver_gnu_asm
1114
    symver_asm_label
1115
    sys_mman_h
1116
    sys_resource_h
1117
    sys_select_h
1118
    sys_soundcard_h
1119
    sys_videoio_h
1120
    ten_operands
1121
    termios_h
1122
    threads
1123
    truncf
1124
    vfp_args
1125
    VirtualAlloc
1126
    winsock2_h
1127
    xform_asm
1128
    xmm_clobbers
1129
    yasm
1130
"
1131

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

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

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

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

    
1193
CMDLINE_APPEND="
1194
    extra_cflags
1195
"
1196

    
1197
# code dependency declarations
1198

    
1199
# architecture extensions
1200

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

    
1208
mmi_deps="mips"
1209

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

    
1213
vis_deps="sparc"
1214

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

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

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

    
1232
symver_if_any="symver_asm_label symver_gnu_asm"
1233

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

    
1239
# decoders / encoders / hardware accelerators
1240
aac_decoder_select="mdct rdft sinewin"
1241
aac_encoder_select="mdct sinewin"
1242
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1243
ac3_decoder_select="mdct ac3dsp ac3_parser"
1244
ac3_encoder_select="mdct ac3dsp"
1245
ac3_fixed_encoder_select="ac3dsp"
1246
alac_encoder_select="lpc"
1247
amrnb_decoder_select="lsp"
1248
amrwb_decoder_select="lsp"
1249
atrac1_decoder_select="mdct sinewin"
1250
atrac3_decoder_select="mdct"
1251
binkaudio_dct_decoder_select="mdct rdft dct"
1252
binkaudio_rdft_decoder_select="mdct rdft"
1253
cavs_decoder_select="golomb"
1254
cook_decoder_select="mdct sinewin"
1255
cscd_decoder_suggest="zlib"
1256
dca_decoder_select="mdct"
1257
dnxhd_encoder_select="aandct"
1258
dxa_decoder_select="zlib"
1259
eac3_decoder_select="ac3_decoder"
1260
eamad_decoder_select="aandct"
1261
eatgq_decoder_select="aandct"
1262
eatqi_decoder_select="aandct"
1263
ffv1_decoder_select="golomb"
1264
flac_decoder_select="golomb"
1265
flac_encoder_select="golomb lpc"
1266
flashsv_decoder_select="zlib"
1267
flashsv_encoder_select="zlib"
1268
flv_decoder_select="h263_decoder"
1269
flv_encoder_select="h263_encoder"
1270
fraps_decoder_select="huffman"
1271
h261_encoder_select="aandct"
1272
h263_decoder_select="h263_parser"
1273
h263_encoder_select="aandct"
1274
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1275
h263i_decoder_select="h263_decoder"
1276
h263p_encoder_select="h263_encoder"
1277
h264_decoder_select="golomb h264dsp h264pred"
1278
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1279
h264_dxva2_hwaccel_deps="dxva2api_h"
1280
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1281
h264_vaapi_hwaccel_select="vaapi"
1282
h264_vdpau_decoder_select="vdpau h264_decoder"
1283
imc_decoder_select="fft mdct"
1284
jpegls_decoder_select="golomb"
1285
jpegls_encoder_select="golomb"
1286
ljpeg_encoder_select="aandct"
1287
loco_decoder_select="golomb"
1288
mjpeg_encoder_select="aandct"
1289
mlp_decoder_select="mlp_parser"
1290
mp1float_decoder_select="dct"
1291
mp2float_decoder_select="dct"
1292
mp3adufloat_decoder_select="dct"
1293
mp3float_decoder_select="dct"
1294
mp3on4float_decoder_select="dct"
1295
mpeg1video_encoder_select="aandct"
1296
mpeg2video_encoder_select="aandct"
1297
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1298
mpeg4_encoder_select="h263_encoder"
1299
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1300
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1301
mpeg2_crystalhd_decoder_select="crystalhd"
1302
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1303
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1304
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1305
mpeg4_crystalhd_decoder_select="crystalhd"
1306
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1307
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1308
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1309
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1310
msmpeg4_crystalhd_decoder_select="crystalhd"
1311
msmpeg4v1_decoder_select="h263_decoder"
1312
msmpeg4v1_encoder_select="h263_encoder"
1313
msmpeg4v2_decoder_select="h263_decoder"
1314
msmpeg4v2_encoder_select="h263_encoder"
1315
msmpeg4v3_decoder_select="h263_decoder"
1316
msmpeg4v3_encoder_select="h263_encoder"
1317
nellymoser_decoder_select="mdct sinewin"
1318
nellymoser_encoder_select="mdct sinewin"
1319
png_decoder_select="zlib"
1320
png_encoder_select="zlib"
1321
qcelp_decoder_select="lsp"
1322
qdm2_decoder_select="mdct rdft"
1323
ra_144_encoder_select="lpc"
1324
rv10_decoder_select="h263_decoder"
1325
rv10_encoder_select="h263_encoder"
1326
rv20_decoder_select="h263_decoder"
1327
rv20_encoder_select="h263_encoder"
1328
rv30_decoder_select="golomb h264pred"
1329
rv40_decoder_select="golomb h264pred"
1330
shorten_decoder_select="golomb"
1331
sipr_decoder_select="lsp"
1332
snow_decoder_select="dwt"
1333
snow_encoder_select="aandct dwt"
1334
sonic_decoder_select="golomb"
1335
sonic_encoder_select="golomb"
1336
sonic_ls_encoder_select="golomb"
1337
svq1_encoder_select="aandct"
1338
svq3_decoder_select="golomb h264dsp h264pred"
1339
svq3_decoder_suggest="zlib"
1340
theora_decoder_select="vp3_decoder"
1341
tiff_decoder_suggest="zlib"
1342
tiff_encoder_suggest="zlib"
1343
truehd_decoder_select="mlp_decoder"
1344
tscc_decoder_select="zlib"
1345
twinvq_decoder_select="mdct lsp sinewin"
1346
vc1_decoder_select="h263_decoder"
1347
vc1_crystalhd_decoder_select="crystalhd"
1348
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1349
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1350
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1351
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1352
vorbis_decoder_select="mdct"
1353
vorbis_encoder_select="mdct"
1354
vp6_decoder_select="huffman"
1355
vp6a_decoder_select="vp6_decoder"
1356
vp6f_decoder_select="vp6_decoder"
1357
vp8_decoder_select="h264pred"
1358
wmapro_decoder_select="mdct sinewin"
1359
wmav1_decoder_select="mdct sinewin"
1360
wmav1_encoder_select="mdct sinewin"
1361
wmav2_decoder_select="mdct sinewin"
1362
wmav2_encoder_select="mdct sinewin"
1363
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1364
wmv1_decoder_select="h263_decoder"
1365
wmv1_encoder_select="h263_encoder"
1366
wmv2_decoder_select="h263_decoder"
1367
wmv2_encoder_select="h263_encoder"
1368
wmv3_decoder_select="vc1_decoder"
1369
wmv3_crystalhd_decoder_select="crystalhd"
1370
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1371
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1372
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1373
zlib_decoder_select="zlib"
1374
zlib_encoder_select="zlib"
1375
zmbv_decoder_select="zlib"
1376
zmbv_encoder_select="zlib"
1377

    
1378
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1379
vaapi_deps="va_va_h"
1380
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1381

    
1382
# parsers
1383
h264_parser_select="golomb h264dsp h264pred"
1384

    
1385
# external libraries
1386
libdirac_decoder_deps="libdirac !libschroedinger"
1387
libdirac_encoder_deps="libdirac"
1388
libfaac_encoder_deps="libfaac"
1389
libgsm_decoder_deps="libgsm"
1390
libgsm_encoder_deps="libgsm"
1391
libgsm_ms_decoder_deps="libgsm"
1392
libgsm_ms_encoder_deps="libgsm"
1393
libmp3lame_encoder_deps="libmp3lame"
1394
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1395
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1396
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1397
libopenjpeg_decoder_deps="libopenjpeg"
1398
libschroedinger_decoder_deps="libschroedinger"
1399
libschroedinger_encoder_deps="libschroedinger"
1400
libspeex_decoder_deps="libspeex"
1401
libtheora_encoder_deps="libtheora"
1402
libvorbis_encoder_deps="libvorbis"
1403
libvpx_decoder_deps="libvpx"
1404
libvpx_encoder_deps="libvpx"
1405
libx264_encoder_deps="libx264"
1406
libxavs_encoder_deps="libxavs"
1407
libxvid_encoder_deps="libxvid"
1408

    
1409
# demuxers / muxers
1410
ac3_demuxer_select="ac3_parser"
1411
asf_stream_muxer_select="asf_muxer"
1412
avisynth_demuxer_deps="avisynth"
1413
dirac_demuxer_select="dirac_parser"
1414
eac3_demuxer_select="ac3_parser"
1415
flac_demuxer_select="flac_parser"
1416
ipod_muxer_select="mov_muxer"
1417
libnut_demuxer_deps="libnut"
1418
libnut_muxer_deps="libnut"
1419
matroska_audio_muxer_select="matroska_muxer"
1420
matroska_demuxer_suggest="zlib bzlib"
1421
mov_demuxer_suggest="zlib"
1422
mp3_demuxer_select="mpegaudio_parser"
1423
mp4_muxer_select="mov_muxer"
1424
mpegtsraw_demuxer_select="mpegts_demuxer"
1425
mxf_d10_muxer_select="mxf_muxer"
1426
ogg_demuxer_select="golomb"
1427
psp_muxer_select="mov_muxer"
1428
rtp_demuxer_select="sdp_demuxer"
1429
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1430
rtsp_demuxer_select="http_protocol rtpdec"
1431
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1432
sap_demuxer_select="sdp_demuxer"
1433
sap_muxer_select="rtp_muxer rtp_protocol"
1434
sdp_demuxer_select="rtpdec"
1435
spdif_muxer_select="aac_parser"
1436
tg2_muxer_select="mov_muxer"
1437
tgp_muxer_select="mov_muxer"
1438
w64_demuxer_deps="wav_demuxer"
1439

    
1440
# indevs / outdevs
1441
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1442
alsa_outdev_deps="alsa_asoundlib_h"
1443
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1444
dv1394_indev_deps="dv1394 dv_demuxer"
1445
fbdev_indev_deps="linux_fb_h"
1446
jack_indev_deps="jack_jack_h"
1447
libdc1394_indev_deps="libdc1394"
1448
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1449
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1450
sndio_indev_deps="sndio_h"
1451
sndio_outdev_deps="sndio_h"
1452
v4l_indev_deps="linux_videodev_h"
1453
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1454
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1455
vfwcap_indev_extralibs="-lavicap32"
1456
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1457
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1458

    
1459
# protocols
1460
gopher_protocol_deps="network"
1461
http_protocol_deps="network"
1462
http_protocol_select="tcp_protocol"
1463
mmsh_protocol_select="http_protocol"
1464
mmst_protocol_deps="network"
1465
rtmp_protocol_select="tcp_protocol"
1466
rtp_protocol_select="udp_protocol"
1467
tcp_protocol_deps="network"
1468
udp_protocol_deps="network"
1469

    
1470
# filters
1471
blackframe_filter_deps="gpl"
1472
cropdetect_filter_deps="gpl"
1473
drawtext_filter_deps="libfreetype"
1474
frei0r_filter_deps="frei0r dlopen strtok_r"
1475
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1476
hqdn3d_filter_deps="gpl"
1477
mp_filter_deps="gpl"
1478
ocv_filter_deps="libopencv"
1479
scale_filter_deps="swscale"
1480
yadif_filter_deps="gpl"
1481

    
1482
# libraries
1483
avdevice_deps="avcodec avformat"
1484
avformat_deps="avcodec"
1485

    
1486
# programs
1487
ffmpeg_deps="avcodec avformat swscale"
1488
ffmpeg_select="buffer_filter"
1489
ffplay_deps="avcodec avformat swscale sdl"
1490
ffplay_select="rdft"
1491
ffprobe_deps="avcodec avformat"
1492
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1493
ffserver_extralibs='$ldl'
1494

    
1495
doc_deps="texi2html"
1496

    
1497
# tests
1498

    
1499
test_deps(){
1500
    suf1=$1
1501
    suf2=$2
1502
    shift 2
1503
    for v; do
1504
        dep=${v%=*}
1505
        tests=${v#*=}
1506
        for name in ${tests}; do
1507
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1508
        done
1509
    done
1510
}
1511

    
1512
set_ne_test_deps(){
1513
    eval ${1}_be_test_deps="bigendian"
1514
    eval ${1}_le_test_deps="!bigendian"
1515
}
1516

    
1517
test_deps _encoder _decoder                                             \
1518
    adpcm_g726=g726                                                     \
1519
    adpcm_ima_qt                                                        \
1520
    adpcm_ima_wav                                                       \
1521
    adpcm_ms                                                            \
1522
    adpcm_swf                                                           \
1523
    adpcm_yamaha=adpcm_yam                                              \
1524
    alac                                                                \
1525
    asv1                                                                \
1526
    asv2                                                                \
1527
    bmp                                                                 \
1528
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1529
    dvvideo="dv dv50"                                                   \
1530
    ffv1                                                                \
1531
    flac                                                                \
1532
    flashsv                                                             \
1533
    flv                                                                 \
1534
    gif                                                                 \
1535
    h261                                                                \
1536
    h263="h263 h263p"                                                   \
1537
    huffyuv                                                             \
1538
    jpegls                                                              \
1539
    mjpeg="jpg mjpeg ljpeg"                                             \
1540
    mp2                                                                 \
1541
    mpeg1video="mpeg mpeg1b"                                            \
1542
    mpeg2video="mpeg2 mpeg2thread"                                      \
1543
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1544
    msmpeg4v3=msmpeg4                                                   \
1545
    msmpeg4v2                                                           \
1546
    pbm=pbmpipe                                                         \
1547
    pcx                                                                 \
1548
    pgm="pgm pgmpipe"                                                   \
1549
    png                                                                 \
1550
    ppm="ppm ppmpipe"                                                   \
1551
    rawvideo="rgb yuv"                                                  \
1552
    roq                                                                 \
1553
    rv10                                                                \
1554
    rv20                                                                \
1555
    sgi                                                                 \
1556
    snow="snow snowll"                                                  \
1557
    svq1                                                                \
1558
    targa=tga                                                           \
1559
    tiff                                                                \
1560
    wmav1                                                               \
1561
    wmav2                                                               \
1562
    wmv1                                                                \
1563
    wmv2                                                                \
1564

    
1565
test_deps _muxer _demuxer                                               \
1566
    aiff                                                                \
1567
    pcm_alaw=alaw                                                       \
1568
    asf                                                                 \
1569
    au                                                                  \
1570
    avi                                                                 \
1571
    dv=dv_fmt                                                           \
1572
    ffm                                                                 \
1573
    flv=flv_fmt                                                         \
1574
    gxf                                                                 \
1575
    matroska=mkv                                                        \
1576
    mmf                                                                 \
1577
    mov                                                                 \
1578
    pcm_mulaw=mulaw                                                     \
1579
    mxf                                                                 \
1580
    nut                                                                 \
1581
    ogg                                                                 \
1582
    rawvideo=pixfmt                                                     \
1583
    rm                                                                  \
1584
    swf                                                                 \
1585
    mpegts=ts                                                           \
1586
    voc                                                                 \
1587
    wav                                                                 \
1588
    yuv4mpegpipe=yuv4mpeg                                               \
1589

    
1590
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1591
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1592

    
1593
set_ne_test_deps pixdesc
1594
set_ne_test_deps pixfmts_copy
1595
set_ne_test_deps pixfmts_crop
1596
set_ne_test_deps pixfmts_hflip
1597
set_ne_test_deps pixfmts_null
1598
set_ne_test_deps pixfmts_pad
1599
set_ne_test_deps pixfmts_scale
1600
set_ne_test_deps pixfmts_vflip
1601

    
1602
# default parameters
1603

    
1604
logfile="config.log"
1605

    
1606
# installation paths
1607
prefix_default="/usr/local"
1608
bindir_default='${prefix}/bin'
1609
datadir_default='${prefix}/share/ffmpeg'
1610
incdir_default='${prefix}/include'
1611
libdir_default='${prefix}/lib'
1612
mandir_default='${prefix}/share/man'
1613
shlibdir_default="$libdir_default"
1614

    
1615
# toolchain
1616
ar_default="ar"
1617
cc_default="gcc"
1618
cc_version=\"unknown\"
1619
host_cc_default="gcc"
1620
ln_s="ln -sf"
1621
nm_default="nm"
1622
objformat="elf"
1623
pkg_config_default=pkg-config
1624
ranlib="ranlib"
1625
yasmexe="yasm"
1626
nogas=":"
1627

    
1628
nm_opts='-g'
1629

    
1630
# machine
1631
arch_default=$(uname -m)
1632
cpu="generic"
1633

    
1634
# OS
1635
target_os_default=$(tolower $(uname -s))
1636
host_os=$target_os_default
1637

    
1638
# configurable options
1639
enable avcodec
1640
enable avdevice
1641
enable avfilter
1642
enable avformat
1643
enable avutil
1644
enable asm
1645
enable debug
1646
enable doc
1647
enable fastdiv
1648
enable ffmpeg
1649
enable ffplay
1650
enable ffprobe
1651
enable ffserver
1652
enable mpegaudio_hp
1653
enable network
1654
enable optimizations
1655
enable protocols
1656
enable static
1657
enable swscale
1658
enable swscale_alpha
1659

    
1660
# build settings
1661
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1662
FFSERVERLDFLAGS=-Wl,-E
1663
LIBPREF="lib"
1664
LIBSUF=".a"
1665
FULLNAME='$(NAME)$(BUILDSUF)'
1666
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1667
SLIBPREF="lib"
1668
SLIBSUF=".so"
1669
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1670
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1671
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1672
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1673

    
1674
CC_O='-o $@'
1675

    
1676
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1677
host_libs='-lm'
1678

    
1679
target_path='$(CURDIR)'
1680

    
1681
# since the object filename is not given with the -MM flag, the compiler
1682
# is only able to print the basename, and we must add the path ourselves
1683
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1684
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1685

    
1686
# find source path
1687
source_path="$(dirname "$0")"
1688
enable source_path_used
1689
if test -f configure; then
1690
    source_path="$(pwd)"
1691
    disable source_path_used
1692
else
1693
    source_path="$(cd "$source_path"; pwd)"
1694
    echo "$source_path" | grep -q '[[:blank:]]' &&
1695
        die "Out of tree builds are impossible with whitespace in source path."
1696
    test -e "$source_path/config.h" &&
1697
        die "Out of tree builds are impossible with config.h in source dir."
1698
fi
1699

    
1700
for v in "$@"; do
1701
    r=${v#*=}
1702
    l=${v%"$r"}
1703
    r=$(sh_quote "$r")
1704
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1705
done
1706

    
1707
find_things(){
1708
    thing=$1
1709
    pattern=$2
1710
    file=$source_path/$3
1711
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1712
}
1713

    
1714
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1715
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1716
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1717
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1718
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1719
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1720
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1721
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1722
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1723
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1724
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1725

    
1726
find_tests(){
1727
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1728
}
1729

    
1730
ACODEC_TESTS=$(find_tests acodec)
1731
VCODEC_TESTS=$(find_tests vsynth1)
1732
LAVF_TESTS=$(find_tests lavf)
1733
LAVFI_TESTS=$(find_tests lavfi)
1734
SEEK_TESTS=$(find_tests seek seek_)
1735

    
1736
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1737

    
1738
for n in $COMPONENT_LIST; do
1739
    v=$(toupper ${n%s})_LIST
1740
    eval enable \$$v
1741
    eval ${n}_if_any="\$$v"
1742
done
1743

    
1744
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1745

    
1746
die_unknown(){
1747
    echo "Unknown option \"$1\"."
1748
    echo "See $0 --help for available options."
1749
    exit 1
1750
}
1751

    
1752
show_list() {
1753
    suffix=_$1
1754
    shift
1755
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1756
    exit 0
1757
}
1758

    
1759
for opt do
1760
    optval="${opt#*=}"
1761
    case "$opt" in
1762
    --extra-ldflags=*) add_ldflags $optval
1763
    ;;
1764
    --extra-libs=*) add_extralibs $optval
1765
    ;;
1766
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1767
    ;;
1768
    --enable-debug=*) debuglevel="$optval"
1769
    ;;
1770
    --disable-everything)
1771
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1772
    ;;
1773
    --enable-*=*|--disable-*=*)
1774
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1775
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1776
    eval list=\$$(toupper $thing)_LIST
1777
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1778
    $action $(filter "$name" $list)
1779
    ;;
1780
    --enable-?*|--disable-?*)
1781
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1782
    if is_in $option $COMPONENT_LIST; then
1783
        test $action = disable && action=unset
1784
        eval $action \$$(toupper ${option%s})_LIST
1785
    elif is_in $option $CMDLINE_SELECT; then
1786
        $action $option
1787
    else
1788
        die_unknown $opt
1789
    fi
1790
    ;;
1791
    --list-*)
1792
        NAME="${opt#--list-}"
1793
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1794
        NAME=${NAME%s}
1795
        eval show_list $NAME \$$(toupper $NAME)_LIST
1796
    ;;
1797
    --help|-h) show_help
1798
    ;;
1799
    *)
1800
    optname="${opt%%=*}"
1801
    optname="${optname#--}"
1802
    optname=$(echo "$optname" | sed 's/-/_/g')
1803
    if is_in $optname $CMDLINE_SET; then
1804
        eval $optname='$optval'
1805
    elif is_in $optname $CMDLINE_APPEND; then
1806
        append $optname "$optval"
1807
    else
1808
         die_unknown $opt
1809
    fi
1810
    ;;
1811
    esac
1812
done
1813

    
1814
disabled logging && logfile=/dev/null
1815

    
1816
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1817
set >> $logfile
1818

    
1819
test -n "$cross_prefix" && enable cross_compile
1820

    
1821
if enabled cross_compile; then
1822
    test -n "$arch" && test -n "$target_os" ||
1823
        die "Must specify target arch and OS when cross-compiling"
1824
fi
1825

    
1826
set_default arch target_os
1827

    
1828
ar_default="${cross_prefix}${ar_default}"
1829
cc_default="${cross_prefix}${cc_default}"
1830
nm_default="${cross_prefix}${nm_default}"
1831
pkg_config_default="${cross_prefix}${pkg_config_default}"
1832
ranlib="${cross_prefix}${ranlib}"
1833

    
1834
sysinclude_default="${sysroot}/usr/include"
1835

    
1836
set_default cc nm pkg_config sysinclude
1837
enabled cross_compile || host_cc_default=$cc
1838
set_default host_cc
1839

    
1840
exesuf() {
1841
    case $1 in
1842
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1843
    esac
1844
}
1845

    
1846
EXESUF=$(exesuf $target_os)
1847
HOSTEXESUF=$(exesuf $host_os)
1848

    
1849
# set temporary file name
1850
: ${TMPDIR:=$TEMPDIR}
1851
: ${TMPDIR:=$TMP}
1852
: ${TMPDIR:=/tmp}
1853

    
1854
if ! check_cmd mktemp -u XXXXXX; then
1855
    # simple replacement for missing mktemp
1856
    # NOT SAFE FOR GENERAL USE
1857
    mktemp(){
1858
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1859
    }
1860
fi
1861

    
1862
tmpfile(){
1863
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1864
        (set -C; exec > $tmp) 2>/dev/null ||
1865
        die "Unable to create temporary file in $TMPDIR."
1866
    append TMPFILES $tmp
1867
    eval $1=$tmp
1868
}
1869

    
1870
trap 'rm -f -- $TMPFILES' EXIT
1871

    
1872
tmpfile TMPC  .c
1873
tmpfile TMPE  $EXESUF
1874
tmpfile TMPH  .h
1875
tmpfile TMPO  .o
1876
tmpfile TMPS  .S
1877
tmpfile TMPV  .ver
1878
tmpfile TMPSH .sh
1879
tmpfile TMPASM .asm
1880

    
1881
unset -f mktemp
1882

    
1883
chmod +x $TMPE
1884

    
1885
# make sure we can execute files in $TMPDIR
1886
cat > $TMPSH 2>> $logfile <<EOF
1887
#! /bin/sh
1888
EOF
1889
chmod +x $TMPSH >> $logfile 2>&1
1890
if ! $TMPSH >> $logfile 2>&1; then
1891
    cat <<EOF
1892
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1893
variable to another directory and make sure that it is not mounted noexec.
1894
EOF
1895
    die "Sanity test failed."
1896
fi
1897

    
1898
filter_cflags=echo
1899
filter_cppflags=echo
1900
filter_asflags=echo
1901

    
1902
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1903
    cc_type=llvm_gcc
1904
    cc_version=__VERSION__
1905
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1906
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1907
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1908
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1909
    speed_cflags='-O3'
1910
    size_cflags='-Os'
1911
elif $cc -v 2>&1 | grep -qi ^gcc; then
1912
    cc_type=gcc
1913
    cc_version=__VERSION__
1914
    gcc_version=$($cc --version | head -n1)
1915
    gcc_basever=$($cc -dumpversion)
1916
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1917
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1918
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1919
    if ! $cc -dumpversion | grep -q '^2\.'; then
1920
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1921
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1922
    fi
1923
    speed_cflags='-O3'
1924
    size_cflags='-Os'
1925
elif $cc --version 2>/dev/null | grep -q Intel; then
1926
    cc_type=icc
1927
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1928
    cc_ident=$($cc --version | head -n1)
1929
    icc_version=$($cc -dumpversion)
1930
    CC_DEPFLAGS='-MMD'
1931
    AS_DEPFLAGS='-MMD'
1932
    speed_cflags='-O3'
1933
    size_cflags='-Os'
1934
    noopt_cflags='-O1'
1935
elif $cc -v 2>&1 | grep -q xlc; then
1936
    cc_type=xlc
1937
    cc_version="AV_STRINGIFY(__IBMC__)"
1938
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1939
    speed_cflags='-O5'
1940
    size_cflags='-O5 -qcompact'
1941
elif $cc -V 2>/dev/null | grep -q Compaq; then
1942
    cc_type=ccc
1943
    cc_version="AV_STRINGIFY(__DECC_VER)"
1944
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1945
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1946
    debuglevel=3
1947
    add_ldflags -Wl,-z,now # calls to libots crash without this
1948
    speed_cflags='-fast'
1949
    size_cflags='-O1'
1950
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1951
    test -d "$sysroot" || die "No valid sysroot specified."
1952
    cc_type=armcc
1953
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1954
    cc_ident=$($cc --vsn | head -n1)
1955
    armcc_conf="$PWD/armcc.conf"
1956
    $cc --arm_linux_configure                 \
1957
        --arm_linux_config_file="$armcc_conf" \
1958
        --configure_sysroot="$sysroot"        \
1959
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1960
        die "Error creating armcc configuration file."
1961
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1962
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1963
    as_default="${cross_prefix}gcc"
1964
    CC_DEPFLAGS='-MMD'
1965
    AS_DEPFLAGS='-MMD'
1966
    speed_cflags='-O3'
1967
    size_cflags='-Os'
1968
    filter_asflags="filter_out -W${armcc_opt}*"
1969
elif $cc -version 2>/dev/null | grep -q TMS470; then
1970
    cc_type=tms470
1971
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1972
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1973
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1974
    CC_O='-fr=$(@D)'
1975
    as_default="${cross_prefix}gcc"
1976
    ld_default="${cross_prefix}gcc"
1977
    TMPO=$(basename $TMPC .c).o
1978
    append TMPFILES $TMPO
1979
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1980
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1981
    AS_DEPFLAGS='-MMD'
1982
    speed_cflags='-O3 -mf=5'
1983
    size_cflags='-O3 -mf=2'
1984
    filter_cflags=tms470_flags
1985
    tms470_flags(){
1986
        for flag; do
1987
            case $flag in
1988
                -march=*|-mcpu=*)
1989
                    case "${flag#*=}" in
1990
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1991
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1992
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1993
                        armv6*|arm11*)          echo -mv=6   ;;
1994
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1995
                                                echo -mv=5e  ;;
1996
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1997
                    esac
1998
                    ;;
1999
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2000
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
2001
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2002
                -msoft-float)   echo --float_support=vfplib       ;;
2003
                -O[0-3]|-mf=*)  echo $flag                        ;;
2004
                -g)             echo -g -mn                       ;;
2005
                -pds=*)         echo $flag                        ;;
2006
            esac
2007
        done
2008
    }
2009
elif $cc -v 2>&1 | grep -q clang; then
2010
    cc_type=clang
2011
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2012
        cc_version=__clang_version__ || cc_version=__VERSION__
2013
    cc_ident=$($cc --version | head -n1)
2014
    CC_DEPFLAGS='-MMD'
2015
    AS_DEPFLAGS='-MMD'
2016
    speed_cflags='-O3'
2017
    size_cflags='-Os'
2018
elif $cc -V 2>&1 | grep -q Sun; then
2019
    cc_type=suncc
2020
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2021
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2022
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2023
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2024
    speed_cflags='-O5'
2025
    size_cflags='-O5 -xspace'
2026
    filter_cflags=suncc_flags
2027
    suncc_flags(){
2028
        for flag; do
2029
            case $flag in
2030
                -march=*|-mcpu=*)
2031
                    case "${flag#*=}" in
2032
                        native)                   echo -xtarget=native       ;;
2033
                        v9|niagara)               echo -xarch=sparc          ;;
2034
                        ultrasparc)               echo -xarch=sparcvis       ;;
2035
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2036
                        i586|pentium)             echo -xchip=pentium        ;;
2037
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2038
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2039
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2040
                        pentium4*)          echo -xtarget=pentium4           ;;
2041
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2042
                        *-sse3)             echo -xarch=sse3                 ;;
2043
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2044
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2045
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2046
                        k8|opteron|athlon64|athlon-fx)
2047
                                                  echo -xarch=sse2a          ;;
2048
                        athlon*)                  echo -xarch=pentium_proa   ;;
2049
                    esac
2050
                    ;;
2051
                -std=c99)             echo -xc99              ;;
2052
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2053
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2054
                -W*,*)                echo $flag              ;;
2055
                -f*-*|-W*)                                    ;;
2056
                *)                    echo $flag              ;;
2057
            esac
2058
        done
2059
    }
2060
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2061
    cc_type=pathscale
2062
    cc_version=__PATHSCALE__
2063
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2064
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2065
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2066
    speed_cflags='-O2'
2067
    size_cflags='-Os'
2068
elif $cc -v 2>&1 | grep -q Open64; then
2069
    cc_type=open64
2070
    cc_version=__OPEN64__
2071
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2072
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2073
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074
    speed_cflags='-O2'
2075
    size_cflags='-Os'
2076
fi
2077

    
2078
test -n "$cc_type" && enable $cc_type ||
2079
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2080

    
2081
: ${as_default:=$cc}
2082
: ${dep_cc_default:=$cc}
2083
: ${ld_default:=$cc}
2084
set_default ar as dep_cc ld
2085

    
2086
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2087
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2088

    
2089
add_cflags $extra_cflags
2090
add_asflags $extra_cflags
2091

    
2092
if test -n "$sysroot"; then
2093
    case "$cc_type" in
2094
        gcc|llvm_gcc|clang)
2095
            add_cppflags --sysroot="$sysroot"
2096
            add_ldflags --sysroot="$sysroot"
2097
        ;;
2098
        tms470)
2099
            add_cppflags -I"$sysinclude"
2100
            add_ldflags  --sysroot="$sysroot"
2101
        ;;
2102
    esac
2103
fi
2104

    
2105
if test "$cpu" = host; then
2106
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2107

    
2108
    case "$cc_type" in
2109
        gcc|llvm_gcc)
2110
            check_native(){
2111
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2112
                sed -n "/$1=/{
2113
                            s/.*$1=\\([^ ]*\\).*/\\1/
2114
                            p
2115
                            q
2116
                        }" $TMPE
2117
            }
2118
            cpu=$(check_native -march || check_native -mcpu)
2119
        ;;
2120
    esac
2121

    
2122
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2123
fi
2124

    
2125
# Deal with common $arch aliases
2126
case "$arch" in
2127
    arm*)
2128
        arch="arm"
2129
    ;;
2130
    mips|mipsel|IP*)
2131
        arch="mips"
2132
    ;;
2133
    mips64*)
2134
        arch="mips"
2135
        subarch="mips64"
2136
    ;;
2137
    parisc|hppa)
2138
        arch="parisc"
2139
    ;;
2140
    parisc64|hppa64)
2141
        arch="parisc"
2142
        subarch="parisc64"
2143
    ;;
2144
    "Power Macintosh"|ppc|powerpc)
2145
        arch="ppc"
2146
    ;;
2147
    ppc64|powerpc64)
2148
        arch="ppc"
2149
        subarch="ppc64"
2150
    ;;
2151
    s390|s390x)
2152
        arch="s390"
2153
    ;;
2154
    sh4|sh)
2155
        arch="sh4"
2156
    ;;
2157
    sun4u|sparc64)
2158
        arch="sparc"
2159
        subarch="sparc64"
2160
    ;;
2161
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2162
        arch="x86"
2163
    ;;
2164
esac
2165

    
2166
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2167
enable $arch
2168

    
2169
# Add processor-specific flags
2170
if test "$cpu" = generic; then
2171
    : do nothing
2172
elif enabled ppc; then
2173

    
2174
    case $(tolower $cpu) in
2175
        601|ppc601|powerpc601)
2176
            cpuflags="-mcpu=601"
2177
            disable altivec
2178
        ;;
2179
        603*|ppc603*|powerpc603*)
2180
            cpuflags="-mcpu=603"
2181
            disable altivec
2182
        ;;
2183
        604*|ppc604*|powerpc604*)
2184
            cpuflags="-mcpu=604"
2185
            disable altivec
2186
        ;;
2187
        g3|75*|ppc75*|powerpc75*)
2188
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2189
            disable altivec
2190
        ;;
2191
        g4|745*|ppc745*|powerpc745*)
2192
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2193
        ;;
2194
        74*|ppc74*|powerpc74*)
2195
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2196
        ;;
2197
        g5|970|ppc970|powerpc970|power4*)
2198
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2199
        ;;
2200
        cell)
2201
            cpuflags="-mcpu=cell"
2202
            enable ldbrx
2203
        ;;
2204
        e500v2)
2205
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2206
            disable altivec
2207
        ;;
2208
        e500)
2209
            cpuflags="-mcpu=8540 -mhard-float"
2210
            disable altivec
2211
        ;;
2212
    esac
2213

    
2214
elif enabled x86; then
2215

    
2216
    case $cpu in
2217
        i[345]86|pentium)
2218
            cpuflags="-march=$cpu"
2219
            disable mmx
2220
        ;;
2221
        # targets that do NOT support conditional mov (cmov)
2222
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2223
            cpuflags="-march=$cpu"
2224
            disable cmov
2225
        ;;
2226
        # targets that do support conditional mov (cmov)
2227
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2228
            cpuflags="-march=$cpu"
2229
            enable cmov
2230
            enable fast_cmov
2231
        ;;
2232
        # targets that do support conditional mov but on which it's slow
2233
        pentium4|pentium4m|prescott|nocona)
2234
            cpuflags="-march=$cpu"
2235
            enable cmov
2236
            disable fast_cmov
2237
        ;;
2238
    esac
2239

    
2240
elif enabled sparc; then
2241

    
2242
    case $cpu in
2243
        niagara)
2244
            cpuflags="-mcpu=$cpu"
2245
            disable vis
2246
        ;;
2247
        sparc64)
2248
            cpuflags="-mcpu=v9"
2249
        ;;
2250
    esac
2251

    
2252
elif enabled arm; then
2253

    
2254
    case $cpu in
2255
        armv*)
2256
            cpuflags="-march=$cpu"
2257
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2258
        ;;
2259
        *)
2260
            cpuflags="-mcpu=$cpu"
2261
            case $cpu in
2262
                cortex-a*)                               subarch=armv7a  ;;
2263
                cortex-r*)                               subarch=armv7r  ;;
2264
                cortex-m*)                               subarch=armv7m  ;;
2265
                arm11*)                                  subarch=armv6   ;;
2266
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2267
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2268
            esac
2269
        ;;
2270
    esac
2271

    
2272
elif enabled alpha; then
2273

    
2274
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2275

    
2276
elif enabled bfin; then
2277

    
2278
    cpuflags="-mcpu=$cpu"
2279

    
2280
elif enabled mips; then
2281

    
2282
    cpuflags="-march=$cpu"
2283

    
2284
elif enabled avr32; then
2285

    
2286
    case $cpu in
2287
        ap7[02]0[0-2])
2288
            subarch="avr32_ap"
2289
            cpuflags="-mpart=$cpu"
2290
        ;;
2291
        ap)
2292
            subarch="avr32_ap"
2293
            cpuflags="-march=$cpu"
2294
        ;;
2295
        uc3[ab]*)
2296
            subarch="avr32_uc"
2297
            cpuflags="-mcpu=$cpu"
2298
        ;;
2299
        uc)
2300
            subarch="avr32_uc"
2301
            cpuflags="-march=$cpu"
2302
        ;;
2303
    esac
2304

    
2305
fi
2306

    
2307
add_cflags $cpuflags
2308
add_asflags $cpuflags
2309

    
2310
# compiler sanity check
2311
check_exec <<EOF
2312
int main(void){ return 0; }
2313
EOF
2314
if test "$?" != 0; then
2315
    echo "$cc is unable to create an executable file."
2316
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2317
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2318
        echo "Only do this if you know what cross compiling means."
2319
    fi
2320
    die "C compiler test failed."
2321
fi
2322

    
2323
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2324
check_cflags -std=c99
2325
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2326
#include <stdlib.h>
2327
EOF
2328
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2329
#include <stdlib.h>
2330
EOF
2331

    
2332
check_host_cflags -std=c99
2333

    
2334
case "$arch" in
2335
    alpha|ia64|mips|parisc|sparc)
2336
        spic=$shared
2337
    ;;
2338
    x86)
2339
        subarch="x86_32"
2340
        check_cc <<EOF && subarch="x86_64"
2341
        int test[(int)sizeof(char*) - 7];
2342
EOF
2343
        if test "$subarch" = "x86_64"; then
2344
            spic=$shared
2345
        fi
2346
    ;;
2347
esac
2348

    
2349
enable $subarch
2350
enabled spic && enable pic
2351

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

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

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

    
2511
set_default $PATHS_LIST
2512

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

    
2524
disabled static && LIBNAME=""
2525

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

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

    
2536
die_license_disabled nonfree libfaac
2537

    
2538
die_license_disabled version3 libopencore_amrnb
2539
die_license_disabled version3 libopencore_amrwb
2540

    
2541
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2542

    
2543
disabled optimizations || check_cflags -fomit-frame-pointer
2544

    
2545
enable_pic() {
2546
    enable pic
2547
    add_cppflags -DPIC
2548
    add_cflags   -fPIC
2549
    add_asflags  -fPIC
2550
}
2551

    
2552
enabled pic && enable_pic
2553

    
2554
check_cc <<EOF || die "Symbol mangling check failed."
2555
int ff_extern;
2556
EOF
2557
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2558
extern_prefix=${sym%%ff_extern*}
2559

    
2560
check_cc <<EOF && enable inline_asm
2561
void foo(void) { __asm__ volatile ("" ::); }
2562
EOF
2563

    
2564
_restrict=
2565
for restrict_keyword in restrict __restrict__ __restrict; do
2566
    check_cc <<EOF && _restrict=$restrict_keyword && break
2567
void foo(char * $restrict_keyword p);
2568
EOF
2569
done
2570

    
2571
check_cc <<EOF && enable attribute_packed
2572
struct { int x; } __attribute__((packed)) x;
2573
EOF
2574

    
2575
check_cc <<EOF && enable attribute_may_alias
2576
union { int x; } __attribute__((may_alias)) x;
2577
EOF
2578

    
2579
check_cc <<EOF || die "endian test failed"
2580
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2581
EOF
2582
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2583

    
2584
if enabled alpha; then
2585

    
2586
    check_cflags -mieee
2587

    
2588
elif enabled arm; then
2589

    
2590
    check_cflags -marm
2591
    nogas=die
2592

    
2593
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2594
        enable vfp_args
2595
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2596
        case "${cross_prefix:-$cc}" in
2597
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2598
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2599
__asm__ (".eabi_attribute 28, 1");
2600
int main(void) { return 0; }
2601
EOF
2602
        esac
2603
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2604
    fi
2605

    
2606
    # We have to check if pld is a nop and disable it.
2607
    check_asm pld '"pld [r0]"'
2608

    
2609
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2610
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2611
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2612
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2613
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2614
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2615

    
2616
    enabled_all armv6t2 shared !pic && enable_pic
2617

    
2618
elif enabled mips; then
2619

    
2620
    check_asm loongson '"dmult.g $1, $2, $3"'
2621
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2622

    
2623
elif enabled ppc; then
2624

    
2625
    enable local_aligned_8 local_aligned_16
2626

    
2627
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2628
    check_asm ibm_asm   '"add 0, 0, 0"'
2629
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2630
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2631

    
2632
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2633
    if enabled altivec; then
2634
        nogas=warn
2635
        check_cflags -maltivec -mabi=altivec &&
2636
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2637
        check_cflags -faltivec
2638

    
2639
        # check if our compiler supports Motorola AltiVec C API
2640
        check_cc <<EOF || disable altivec
2641
$inc_altivec_h
2642
int main(void) {
2643
    vector signed int v1, v2, v3;
2644
    v1 = vec_add(v2,v3);
2645
    return 0;
2646
}
2647
EOF
2648

    
2649
        # check if our compiler supports braces for vector declarations
2650
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2651
$inc_altivec_h
2652
int main (void) { (vector int) {1}; return 0; }
2653
EOF
2654
    fi
2655

    
2656
elif enabled sparc; then
2657

    
2658
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2659
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2660

    
2661
elif enabled x86; then
2662

    
2663
    enable local_aligned_8 local_aligned_16
2664

    
2665
    # check whether EBP is available on x86
2666
    # As 'i' is stored on the stack, this program will crash
2667
    # if the base pointer is used to access it because the
2668
    # base pointer is cleared in the inline assembly code.
2669
    check_exec_crash <<EOF && enable ebp_available
2670
    volatile int i=0;
2671
    __asm__ volatile (
2672
        "xorl %%ebp, %%ebp"
2673
    ::: "%ebp");
2674
    return i;
2675
EOF
2676

    
2677
    # check whether EBX is available on x86
2678
    check_asm ebx_available '""::"b"(0)' &&
2679
        check_asm ebx_available '"":::"%ebx"'
2680

    
2681
    # check whether xmm clobbers are supported
2682
    check_asm xmm_clobbers '"":::"%xmm0"'
2683

    
2684
    # check whether more than 10 operands are supported
2685
    check_cc <<EOF && enable ten_operands
2686
int main(void) {
2687
    int x=0;
2688
    __asm__ volatile(
2689
        ""
2690
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2691
    );
2692
    return 0;
2693
}
2694
EOF
2695

    
2696
    # check whether binutils is new enough to compile SSSE3/MMX2
2697
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2698
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2699

    
2700
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2701

    
2702
    if ! disabled_any asm mmx yasm; then
2703
        if check_cmd $yasmexe --version; then
2704
            enabled x86_64 && yasm_extra="-m amd64"
2705
            yasm_debug="-g dwarf2"
2706
        elif check_cmd nasm -v; then
2707
            yasmexe=nasm
2708
            yasm_debug="-g -F dwarf"
2709
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2710
        fi
2711

    
2712
        YASMFLAGS="-f $objformat $yasm_extra"
2713
        enabled pic               && append YASMFLAGS "-DPIC"
2714
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2715
        case "$objformat" in
2716
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2717
        esac
2718

    
2719
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2720
            die "yasm not found, use --disable-yasm for a crippled build"
2721
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2722
    fi
2723

    
2724
    case "$cpu" in
2725
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2726
            disable fast_clz
2727
        ;;
2728
    esac
2729

    
2730
fi
2731

    
2732
if enabled asm; then
2733
    as=${gas:=$as}
2734
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2735
        $nogas "GNU assembler not found, install gas-preprocessor"
2736
fi
2737

    
2738
check_ldflags -Wl,--as-needed
2739

    
2740
if check_func dlopen; then
2741
    ldl=
2742
elif check_func dlopen -ldl; then
2743
    ldl=-ldl
2744
fi
2745

    
2746
if enabled network; then
2747
    check_type "sys/types.h sys/socket.h" socklen_t
2748
    check_type netdb.h "struct addrinfo"
2749
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2750
    check_type netinet/in.h "struct sockaddr_in6"
2751
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2752
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2753
    # Prefer arpa/inet.h over winsock2
2754
    if check_header arpa/inet.h ; then
2755
        check_func closesocket
2756
    elif check_header winsock2.h ; then
2757
        check_func_headers winsock2.h closesocket -lws2 && \
2758
            network_extralibs="-lws2" || \
2759
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2760
            network_extralibs="-lws2_32"; }
2761
        check_type ws2tcpip.h socklen_t
2762
        check_type ws2tcpip.h "struct addrinfo"
2763
        check_type ws2tcpip.h "struct ipv6_mreq"
2764
        check_type ws2tcpip.h "struct sockaddr_in6"
2765
        check_type ws2tcpip.h "struct sockaddr_storage"
2766
        check_struct winsock2.h "struct sockaddr" sa_len
2767
    else
2768
        disable network
2769
    fi
2770
fi
2771

    
2772
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2773
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2774

    
2775
check_func  fcntl
2776
check_func  fork
2777
check_func  getaddrinfo $network_extralibs
2778
check_func  gethrtime
2779
check_func  getrusage
2780
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2781
check_func  inet_aton $network_extralibs
2782
check_func  isatty
2783
check_func  localtime_r
2784
check_func  ${malloc_prefix}memalign            && enable memalign
2785
check_func  mkstemp
2786
check_func  mmap
2787
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2788
check_func  setrlimit
2789
check_func  strerror_r
2790
check_func  strtok_r
2791
check_func_headers conio.h kbhit
2792
check_func_headers io.h setmode
2793
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2794
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2795
check_func_headers windows.h GetProcessTimes
2796
check_func_headers windows.h MapViewOfFile
2797
check_func_headers windows.h VirtualAlloc
2798

    
2799
check_header dlfcn.h
2800
check_header dxva2api.h
2801
check_header libcrystalhd/libcrystalhd_if.h
2802
check_header malloc.h
2803
check_header poll.h
2804
check_header sys/mman.h
2805
check_header sys/resource.h
2806
check_header sys/select.h
2807
check_header termios.h
2808
check_header vdpau/vdpau.h
2809
check_header vdpau/vdpau_x11.h
2810
check_header X11/extensions/XvMClib.h
2811

    
2812
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2813

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

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

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

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

    
2849
check_lib math.h sin -lm
2850
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2851

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

    
2864
# these are off by default, so fail if requested and not available
2865
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2866
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2867
enabled libdirac   && require_pkg_config dirac                          \
2868
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2869
    "dirac_decoder_init dirac_encoder_init"
2870
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2871
enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2872
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2873
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2874
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2875
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2876
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2877
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2878
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2879
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2880
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2881
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2882
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2883
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2884
enabled libvpx     && {
2885
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2886
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2887
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2888
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2889
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2890
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2891
                        die "ERROR: libx264 version must be >= 0.99."; }
2892
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2893
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2894
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2895

    
2896
# libdc1394 check
2897
if enabled libdc1394; then
2898
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2899
        enable libdc1394_2; } ||
2900
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2901
        enable libdc1394_1; } ||
2902
    die "ERROR: No version of libdc1394 found "
2903
fi
2904

    
2905
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2906
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2907
    enable sdl &&
2908
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2909
fi
2910

    
2911
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2912

    
2913
check_header linux/fb.h
2914
check_header linux/videodev.h
2915
check_header linux/videodev2.h
2916
check_header sys/videoio.h
2917

    
2918
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2919
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2920
# w32api 3.12 had it defined wrong
2921
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2922

    
2923
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2924
{ check_header dev/bktr/ioctl_meteor.h &&
2925
  check_header dev/bktr/ioctl_bt848.h; } ||
2926
{ check_header machine/ioctl_meteor.h &&
2927
  check_header machine/ioctl_bt848.h; } ||
2928
{ check_header dev/video/meteor/ioctl_meteor.h &&
2929
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2930
check_header dev/ic/bt8xx.h
2931

    
2932
check_header sndio.h
2933
check_header sys/soundcard.h
2934
check_header soundcard.h
2935

    
2936
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2937

    
2938
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2939

    
2940
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2941

    
2942
enabled x11grab                         &&
2943
check_header X11/Xlib.h                 &&
2944
check_header X11/extensions/XShm.h      &&
2945
check_header X11/extensions/Xfixes.h    &&
2946
check_func XOpenDisplay -lX11           &&
2947
check_func XShmCreateImage -lX11 -lXext &&
2948
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2949

    
2950
if ! disabled vaapi; then
2951
    check_lib va/va.h vaInitialize -lva && {
2952
        check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2953
        warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2954
    } || disable vaapi
2955
fi
2956

    
2957
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2958
check_cpp_condition \
2959
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2960
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2961
      disable vdpau; }
2962
fi
2963

    
2964
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2965

    
2966
# add some useful compiler flags if supported
2967
check_cflags -Wdeclaration-after-statement
2968
check_cflags -Wall
2969
check_cflags -Wno-parentheses
2970
check_cflags -Wno-switch
2971
check_cflags -Wdisabled-optimization
2972
check_cflags -Wpointer-arith
2973
check_cflags -Wredundant-decls
2974
check_cflags -Wno-pointer-sign
2975
check_cflags -Wcast-qual
2976
check_cflags -Wwrite-strings
2977
check_cflags -Wtype-limits
2978
check_cflags -Wundef
2979
check_cflags -Wmissing-prototypes
2980
enabled extra_warnings && check_cflags -Winline
2981

    
2982
# add some linker flags
2983
check_ldflags -Wl,--warn-common
2984
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'
2985
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2986

    
2987
echo "X{};" > $TMPV
2988
if test_ldflags -Wl,--version-script,$TMPV; then
2989
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2990
    check_cc <<EOF && enable symver_asm_label
2991
void ff_foo(void) __asm__ ("av_foo@VERSION");
2992
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2993
EOF
2994
    check_cc <<EOF && enable symver_gnu_asm
2995
__asm__(".symver ff_foo,av_foo@VERSION");
2996
void ff_foo(void) {}
2997
EOF
2998
fi
2999

    
3000
if enabled small; then
3001
    add_cflags $size_cflags
3002
    optimizations="small"
3003
elif enabled optimizations; then
3004
    add_cflags $speed_cflags
3005
else
3006
    add_cflags $noopt_cflags
3007
fi
3008
check_cflags -fno-math-errno
3009
check_cflags -fno-signed-zeros
3010

    
3011
if enabled icc; then
3012
    # Just warnings, no remarks
3013
    check_cflags -w1
3014
    # -wd: Disable following warnings
3015
    # 144, 167, 556: -Wno-pointer-sign
3016
    # 1292: attribute "foo" ignored
3017
    # 10006: ignoring unknown option -fno-signed-zeros
3018
    # 10148: ignoring unknown option -Wno-parentheses
3019
    # 10156: ignoring option '-W'; no argument required
3020
    check_cflags -wd144,167,556,1292,10006,10148,10156
3021
    # 11030: Warning unknown option --as-needed
3022
    # 10156: ignoring option '-export'; no argument required
3023
    check_ldflags -wd10156,11030
3024
    # Allow to compile with optimizations
3025
    check_ldflags -march=$cpu
3026
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3027
    enable ebp_available
3028
    if enabled x86_32; then
3029
        test ${icc_version%%.*} -ge 11 && \
3030
            check_cflags -falign-stack=maintain-16-byte || \
3031
            disable aligned_stack
3032
    fi
3033
elif enabled ccc; then
3034
    # disable some annoying warnings
3035
    add_cflags -msg_disable cvtu32to64
3036
    add_cflags -msg_disable embedcomment
3037
    add_cflags -msg_disable needconstext
3038
    add_cflags -msg_disable nomainieee
3039
    add_cflags -msg_disable ptrmismatch1
3040
    add_cflags -msg_disable unreachcode
3041
elif enabled gcc; then
3042
    check_cflags -fno-tree-vectorize
3043
    check_cflags -Werror=implicit-function-declaration
3044
    if test $target_os != "mingw32"; then
3045
        check_cflags -Werror=missing-prototypes
3046
    fi
3047
elif enabled llvm_gcc; then
3048
    check_cflags -mllvm -stack-alignment=16
3049
elif enabled clang; then
3050
    check_cflags -mllvm -stack-alignment=16
3051
    check_cflags -Qunused-arguments
3052
elif enabled armcc; then
3053
    # 2523: use of inline assembler is deprecated
3054
    add_cflags -W${armcc_opt},--diag_suppress=2523
3055
    add_cflags -W${armcc_opt},--diag_suppress=1207
3056
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3057
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3058
elif enabled tms470; then
3059
    add_cflags -pds=824 -pds=837
3060
elif enabled pathscale; then
3061
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3062
fi
3063

    
3064
enabled_any $THREADS_LIST      && enable threads
3065

    
3066
check_deps $CONFIG_LIST       \
3067
           $CONFIG_EXTRA      \
3068
           $HAVE_LIST         \
3069
           $DECODER_LIST      \
3070
           $ENCODER_LIST      \
3071
           $HWACCEL_LIST      \
3072
           $PARSER_LIST       \
3073
           $BSF_LIST          \
3074
           $DEMUXER_LIST      \
3075
           $MUXER_LIST        \
3076
           $FILTER_LIST       \
3077
           $INDEV_LIST        \
3078
           $OUTDEV_LIST       \
3079
           $PROTOCOL_LIST     \
3080
           $ACODEC_TESTS      \
3081
           $VCODEC_TESTS      \
3082
           $LAVF_TESTS        \
3083
           $LAVFI_TESTS       \
3084
           $SEEK_TESTS        \
3085

    
3086
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3087

    
3088
echo "install prefix            $prefix"
3089
echo "source path               $source_path"
3090
echo "C compiler                $cc"
3091
echo "ARCH                      $arch ($cpu)"
3092
if test "$build_suffix" != ""; then
3093
    echo "build suffix              $build_suffix"
3094
fi
3095
if test "$extra_version" != ""; then
3096
    echo "version string suffix     $extra_version"
3097
fi
3098
echo "big-endian                ${bigendian-no}"
3099
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3100
if enabled x86; then
3101
    echo "yasm                      ${yasm-no}"
3102
    echo "MMX enabled               ${mmx-no}"
3103
    echo "MMX2 enabled              ${mmx2-no}"
3104
    echo "3DNow! enabled            ${amd3dnow-no}"
3105
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3106
    echo "SSE enabled               ${sse-no}"
3107
    echo "SSSE3 enabled             ${ssse3-no}"
3108
    echo "CMOV enabled              ${cmov-no}"
3109
    echo "CMOV is fast              ${fast_cmov-no}"
3110
    echo "EBX available             ${ebx_available-no}"
3111
    echo "EBP available             ${ebp_available-no}"
3112
    echo "10 operands supported     ${ten_operands-no}"
3113
fi
3114
if enabled arm; then
3115
    echo "ARMv5TE enabled           ${armv5te-no}"
3116
    echo "ARMv6 enabled             ${armv6-no}"
3117
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3118
    echo "ARM VFP enabled           ${armvfp-no}"
3119
    echo "IWMMXT enabled            ${iwmmxt-no}"
3120
    echo "NEON enabled              ${neon-no}"
3121
fi
3122
if enabled mips; then
3123
    echo "MMI enabled               ${mmi-no}"
3124
fi
3125
if enabled ppc; then
3126
    echo "AltiVec enabled           ${altivec-no}"
3127
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3128
    echo "dcbzl available           ${dcbzl-no}"
3129
fi
3130
if enabled sparc; then
3131
    echo "VIS enabled               ${vis-no}"
3132
fi
3133
echo "debug symbols             ${debug-no}"
3134
echo "optimizations             ${optimizations-no}"
3135
echo "static                    ${static-no}"
3136
echo "shared                    ${shared-no}"
3137
echo "postprocessing support    ${postproc-no}"
3138
echo "new filter support        ${avfilter-no}"
3139
echo "network support           ${network-no}"
3140
echo "threading support         ${thread_type-no}"
3141
echo "SDL support               ${sdl-no}"
3142
echo "Sun medialib support      ${mlib-no}"
3143
echo "AVISynth enabled          ${avisynth-no}"
3144
echo "frei0r enabled            ${frei0r-no}"
3145
echo "libdc1394 support         ${libdc1394-no}"
3146
echo "libdirac enabled          ${libdirac-no}"
3147
echo "libfaac enabled           ${libfaac-no}"
3148
echo "libgsm enabled            ${libgsm-no}"
3149
echo "libmp3lame enabled        ${libmp3lame-no}"
3150
echo "libnut enabled            ${libnut-no}"
3151
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3152
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3153
echo "libopencv support         ${libopencv-no}"
3154
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3155
echo "librtmp enabled           ${librtmp-no}"
3156
echo "libschroedinger enabled   ${libschroedinger-no}"
3157
echo "libspeex enabled          ${libspeex-no}"
3158
echo "libtheora enabled         ${libtheora-no}"
3159
echo "libvorbis enabled         ${libvorbis-no}"
3160
echo "libvpx enabled            ${libvpx-no}"
3161
echo "libx264 enabled           ${libx264-no}"
3162
echo "libxavs enabled           ${libxavs-no}"
3163
echo "libxvid enabled           ${libxvid-no}"
3164
echo "zlib enabled              ${zlib-no}"
3165
echo "bzlib enabled             ${bzlib-no}"
3166
echo
3167

    
3168
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3169
    echo "Enabled ${type}s:"
3170
    eval list=\$$(toupper $type)_LIST
3171
    print_enabled '_*' $list | sort | pr -r -3 -t
3172
    echo
3173
done
3174

    
3175
license="LGPL version 2.1 or later"
3176
if enabled nonfree; then
3177
    license="nonfree and unredistributable"
3178
elif enabled gplv3; then
3179
    license="GPL version 3 or later"
3180
elif enabled lgplv3; then
3181
    license="LGPL version 3 or later"
3182
elif enabled gpl; then
3183
    license="GPL version 2 or later"
3184
fi
3185

    
3186
echo "License: $license"
3187

    
3188
echo "Creating config.mak and config.h..."
3189

    
3190
# build tree in object directory if source path is different from current one
3191
if enabled source_path_used; then
3192
    DIRS="
3193
        doc
3194
        libavcodec
3195
        libavcodec/$arch
3196
        libavdevice
3197
        libavfilter
3198
        libavfilter/$arch
3199
        libavfilter/libmpcodecs
3200
        libavfilter/libmpcodecs/libvo
3201
        libavformat
3202
        libavutil
3203
        libavutil/$arch
3204
        libpostproc
3205
        libswscale
3206
        libswscale/$arch
3207
        tests
3208
        tools
3209
    "
3210
    FILES="
3211
        Makefile
3212
        common.mak
3213
        subdir.mak
3214
        doc/texi2pod.pl
3215
        libavcodec/Makefile
3216
        libavcodec/${arch}/Makefile
3217
        libavdevice/Makefile
3218
        libavfilter/Makefile
3219
        libavfilter/${arch}/Makefile
3220
        libavformat/Makefile
3221
        libavutil/Makefile
3222
        libpostproc/Makefile
3223
        libswscale/Makefile
3224
    "
3225
    map 'mkdir -p $v' $DIRS;
3226
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3227
fi
3228

    
3229
config_files="$TMPH config.mak"
3230

    
3231
cat > config.mak <<EOF
3232
# Automatically generated by configure - do not modify!
3233
ifndef FFMPEG_CONFIG_MAK
3234
FFMPEG_CONFIG_MAK=1
3235
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3236
prefix=$prefix
3237
LIBDIR=\$(DESTDIR)$libdir
3238
SHLIBDIR=\$(DESTDIR)$shlibdir
3239
INCDIR=\$(DESTDIR)$incdir
3240
BINDIR=\$(DESTDIR)$bindir
3241
DATADIR=\$(DESTDIR)$datadir
3242
MANDIR=\$(DESTDIR)$mandir
3243
SRC_PATH="$source_path"
3244
SRC_PATH_BARE=$source_path
3245
BUILD_ROOT="$PWD"
3246
CC_IDENT=$cc_ident
3247
ARCH=$arch
3248
CC=$cc
3249
AS=$as
3250
LD=$ld
3251
DEPCC=$dep_cc
3252
YASM=$yasmexe
3253
YASMDEP=$yasmexe
3254
AR=$ar
3255
RANLIB=$ranlib
3256
LN_S=$ln_s
3257
CPPFLAGS=$CPPFLAGS
3258
CFLAGS=$CFLAGS
3259
ASFLAGS=$ASFLAGS
3260
CC_O=$CC_O
3261
DLLTOOL=$dlltool
3262
LDFLAGS=$LDFLAGS
3263
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3264
SHFLAGS=$SHFLAGS
3265
YASMFLAGS=$YASMFLAGS
3266
BUILDSUF=$build_suffix
3267
FULLNAME=$FULLNAME
3268
LIBPREF=$LIBPREF
3269
LIBSUF=$LIBSUF
3270
LIBNAME=$LIBNAME
3271
SLIBPREF=$SLIBPREF
3272
SLIBSUF=$SLIBSUF
3273
EXESUF=$EXESUF
3274
EXTRA_VERSION=$extra_version
3275
DEPFLAGS=$DEPFLAGS
3276
CCDEP=$CCDEP
3277
ASDEP=$ASDEP
3278
CC_DEPFLAGS=$CC_DEPFLAGS
3279
AS_DEPFLAGS=$AS_DEPFLAGS
3280
HOSTCC=$host_cc
3281
HOSTCFLAGS=$host_cflags
3282
HOSTEXESUF=$HOSTEXESUF
3283
HOSTLDFLAGS=$host_ldflags
3284
HOSTLIBS=$host_libs
3285
TARGET_EXEC=$target_exec
3286
TARGET_PATH=$target_path
3287
SDL_LIBS=$sdl_libs
3288
SDL_CFLAGS=$sdl_cflags
3289
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3290
EXTRALIBS=$extralibs
3291
INSTALL=install
3292
LIBTARGET=${LIBTARGET}
3293
SLIBNAME=${SLIBNAME}
3294
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3295
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3296
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3297
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3298
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3299
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3300
SAMPLES=${samples:-\$(FATE_SAMPLES)}
3301
EOF
3302

    
3303
get_version(){
3304
    name=$1
3305
    file=$source_path/$2
3306
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3307
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3308
    lcname=$(tolower $name)
3309
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3310
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3311
}
3312

    
3313
get_version LIBSWSCALE  libswscale/swscale.h
3314
get_version LIBPOSTPROC libpostproc/postprocess.h
3315
get_version LIBAVCODEC  libavcodec/version.h
3316
get_version LIBAVDEVICE libavdevice/avdevice.h
3317
get_version LIBAVFORMAT libavformat/version.h
3318
get_version LIBAVUTIL   libavutil/avutil.h
3319
get_version LIBAVFILTER libavfilter/avfilter.h
3320

    
3321
cat > $TMPH <<EOF
3322
/* Automatically generated by configure - do not modify! */
3323
#ifndef FFMPEG_CONFIG_H
3324
#define FFMPEG_CONFIG_H
3325
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3326
#define FFMPEG_LICENSE "$(c_escape $license)"
3327
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3328
#define CC_TYPE "$cc_type"
3329
#define CC_VERSION $cc_version
3330
#define restrict $_restrict
3331
#define EXTERN_PREFIX "${extern_prefix}"
3332
#define EXTERN_ASM ${extern_prefix}
3333
#define SLIBSUF "$SLIBSUF"
3334
EOF
3335

    
3336
test -n "$malloc_prefix" &&
3337
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3338

    
3339
if enabled small || disabled optimizations; then
3340
    echo "#undef  av_always_inline"  >> $TMPH
3341
    if enabled small; then
3342
        echo "#define av_always_inline inline"  >> $TMPH
3343
    else
3344
        echo "#define av_always_inline av_unused"  >> $TMPH
3345
    fi
3346
fi
3347

    
3348
if enabled yasm; then
3349
    append config_files $TMPASM
3350
    printf '' >$TMPASM
3351
fi
3352

    
3353
print_config ARCH_   "$config_files" $ARCH_LIST
3354
print_config HAVE_   "$config_files" $HAVE_LIST
3355
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3356
                                     $CONFIG_EXTRA      \
3357
                                     $DECODER_LIST      \
3358
                                     $ENCODER_LIST      \
3359
                                     $HWACCEL_LIST      \
3360
                                     $PARSER_LIST       \
3361
                                     $BSF_LIST          \
3362
                                     $DEMUXER_LIST      \
3363
                                     $MUXER_LIST        \
3364
                                     $FILTER_LIST       \
3365
                                     $PROTOCOL_LIST     \
3366
                                     $INDEV_LIST        \
3367
                                     $OUTDEV_LIST       \
3368

    
3369
cat >>config.mak <<EOF
3370
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3371
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3372
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3373
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3374
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3375
EOF
3376

    
3377
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3378
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3379

    
3380
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3381
cp_if_changed $TMPH config.h
3382
touch .config
3383

    
3384
enabled yasm && cp_if_changed $TMPASM config.asm
3385

    
3386
cat > $TMPH <<EOF
3387
/* Generated by ffconf */
3388
#ifndef AVUTIL_AVCONFIG_H
3389
#define AVUTIL_AVCONFIG_H
3390
EOF
3391

    
3392
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3393

    
3394
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3395

    
3396
cp_if_changed $TMPH libavutil/avconfig.h
3397

    
3398
test -n "$WARNINGS" && printf "\n$WARNINGS"
3399

    
3400
# build pkg-config files
3401

    
3402
pkgconfig_generate(){
3403
name=$1
3404
shortname=${name#lib}${build_suffix}
3405
comment=$2
3406
version=$3
3407
libs=$4
3408
requires=$5
3409
enabled ${name#lib} || return 0
3410
cat <<EOF > $name/$name.pc
3411
prefix=$prefix
3412
exec_prefix=\${prefix}
3413
libdir=$libdir
3414
includedir=$incdir
3415

    
3416
Name: $name
3417
Description: $comment
3418
Version: $version
3419
Requires: $(enabled shared || echo $requires)
3420
Requires.private: $(enabled shared && echo $requires)
3421
Conflicts:
3422
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3423
Libs.private: $(enabled shared && echo $libs)
3424
Cflags: -I\${includedir}
3425
EOF
3426
cat <<EOF > $name/$name-uninstalled.pc
3427
prefix=
3428
exec_prefix=
3429
libdir=\${pcfiledir}
3430
includedir=${source_path}
3431

    
3432
Name: $name
3433
Description: $comment
3434
Version: $version
3435
Requires: $requires
3436
Conflicts:
3437
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3438
Cflags: -I\${includedir}
3439
EOF
3440
}
3441

    
3442
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3443
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3444
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3445
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3446
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3447
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3448
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"