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

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

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

    
62
Standard options:
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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]
76
  --enable-shared          build shared libraries [no]
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  --enable-gpl             allow use of GPL code, the resulting libs
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                           and binaries will be under GPL [no]
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  --enable-version3        upgrade (L)GPL to version 3 [no]
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  --enable-nonfree         allow use of nonfree code, the resulting libs
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                           and binaries will be unredistributable [no]
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  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
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  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
87
  --disable-avdevice       disable libavdevice build
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  --disable-avcodec        disable libavcodec build
89
  --disable-avformat       disable libavformat build
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  --disable-swscale        disable libswscale build
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  --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
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  --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-libgsm          enable GSM support via libgsm [no]
173
  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
174
  --enable-libnut          enable NUT (de)muxing via libnut,
175
                           native (de)muxer exists [no]
176
  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
177
  --enable-librtmp         enable RTMP[E] support via librtmp [no]
178
  --enable-libschroedinger enable Dirac support via libschroedinger [no]
179
  --enable-libspeex        enable Speex decoding via libspeex [no]
180
  --enable-libtheora       enable Theora encoding via libtheora [no]
181
  --enable-libvorbis       enable Vorbis encoding via libvorbis,
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                           native implementation exists [no]
183
  --enable-libvpx          enable VP8 support via libvpx [no]
184
  --enable-libx264         enable H.264 encoding via x264 [no]
185
  --enable-libxavs         enable AVS encoding via xavs [no]
186
  --enable-libxvid         enable Xvid encoding via xvidcore,
187
                           native MPEG-4/Xvid encoder exists [no]
188
  --enable-mlib            enable Sun medialib [no]
189
  --enable-zlib            enable zlib [autodetect]
190

    
191
Advanced options (experts only):
192
  --source-path=PATH       path to source code [$source_path]
193
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
194
  --enable-cross-compile   assume a cross-compiler is used
195
  --sysroot=PATH           root of cross-build tree
196
  --sysinclude=PATH        location of cross-build system headers
197
  --target-os=OS           compiler targets OS [$target_os]
198
  --target-exec=CMD        command to run executables on target
199
  --target-path=DIR        path to view of build directory on target
200
  --nm=NM                  use nm tool
201
  --ar=AR                  use archive tool AR [$ar_default]
202
  --as=AS                  use assembler AS [$as_default]
203
  --cc=CC                  use C compiler CC [$cc_default]
204
  --ld=LD                  use linker LD
205
  --host-cc=HOSTCC         use host C compiler HOSTCC
206
  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
207
  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
208
  --host-libs=HLIBS        use libs HLIBS when linking for host
209
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
210
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
211
  --extra-libs=ELIBS       add ELIBS [$ELIBS]
212
  --extra-version=STRING   version string suffix []
213
  --build-suffix=SUFFIX    library name suffix []
214
  --arch=ARCH              select architecture [$arch]
215
  --cpu=CPU                select the minimum required CPU (affects
216
                           instruction selection, may crash on older CPUs)
217
  --disable-asm            disable all assembler optimizations
218
  --disable-altivec        disable AltiVec optimizations
219
  --disable-amd3dnow       disable 3DNow! optimizations
220
  --disable-amd3dnowext    disable 3DNow! extended optimizations
221
  --disable-mmx            disable MMX optimizations
222
  --disable-mmx2           disable MMX2 optimizations
223
  --disable-sse            disable SSE optimizations
224
  --disable-ssse3          disable SSSE3 optimizations
225
  --disable-avx            disable AVX optimizations
226
  --disable-armv5te        disable armv5te optimizations
227
  --disable-armv6          disable armv6 optimizations
228
  --disable-armv6t2        disable armv6t2 optimizations
229
  --disable-armvfp         disable ARM VFP optimizations
230
  --disable-iwmmxt         disable iwmmxt optimizations
231
  --disable-mmi            disable MMI optimizations
232
  --disable-neon           disable neon optimizations
233
  --disable-vis            disable VIS optimizations
234
  --disable-yasm           disable use of yasm assembler
235
  --enable-pic             build position-independent code
236
  --malloc-prefix=PFX      prefix malloc and related names with PFX
237
  --enable-sram            allow use of on-chip SRAM
238
  --disable-symver         disable symbol versioning
239

    
240
Developer options (useful when working on Libav itself):
241
  --disable-debug          disable debugging symbols
242
  --enable-debug=LEVEL     set the debug level [$debuglevel]
243
  --disable-optimizations  disable compiler optimizations
244
  --enable-extra-warnings  enable more compiler warnings
245
  --disable-stripping      disable stripping of executables and shared libraries
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
libav-user@libav.org mailing list or IRC #libav 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 $extralibs $libs
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
    dct
910
    doc
911
    dwt
912
    dxva2
913
    fastdiv
914
    ffmpeg
915
    ffplay
916
    ffprobe
917
    ffserver
918
    fft
919
    frei0r
920
    golomb
921
    gpl
922
    gray
923
    h264dsp
924
    h264pred
925
    hardcoded_tables
926
    huffman
927
    libdc1394
928
    libdirac
929
    libfaac
930
    libgsm
931
    libmp3lame
932
    libnut
933
    libopencore_amrnb
934
    libopencore_amrwb
935
    libopencv
936
    libopenjpeg
937
    librtmp
938
    libschroedinger
939
    libspeex
940
    libtheora
941
    libvorbis
942
    libvpx
943
    libx264
944
    libxavs
945
    libxvid
946
    lpc
947
    lsp
948
    mdct
949
    memalign_hack
950
    mlib
951
    mpegaudio_hp
952
    network
953
    nonfree
954
    pic
955
    postproc
956
    rdft
957
    rtpdec
958
    runtime_cpudetect
959
    shared
960
    sinewin
961
    small
962
    sram
963
    static
964
    swscale
965
    swscale_alpha
966
    vaapi
967
    vdpau
968
    version3
969
    x11grab
970
    zlib
971
"
972

    
973
THREADS_LIST='
974
    pthreads
975
    w32threads
976
'
977

    
978
ARCH_LIST='
979
    alpha
980
    arm
981
    avr32
982
    avr32_ap
983
    avr32_uc
984
    bfin
985
    ia64
986
    m68k
987
    mips
988
    mips64
989
    parisc
990
    ppc
991
    ppc64
992
    s390
993
    sh4
994
    sparc
995
    sparc64
996
    tomi
997
    x86
998
    x86_32
999
    x86_64
1000
'
1001

    
1002
ARCH_EXT_LIST='
1003
    altivec
1004
    amd3dnow
1005
    amd3dnowext
1006
    armv5te
1007
    armv6
1008
    armv6t2
1009
    armvfp
1010
    avx
1011
    iwmmxt
1012
    mmi
1013
    mmx
1014
    mmx2
1015
    neon
1016
    ppc4xx
1017
    sse
1018
    ssse3
1019
    vis
1020
'
1021

    
1022
HAVE_LIST_PUB='
1023
    bigendian
1024
    fast_unaligned
1025
'
1026

    
1027
HAVE_LIST="
1028
    $ARCH_EXT_LIST
1029
    $HAVE_LIST_PUB
1030
    $THREADS_LIST
1031
    aligned_stack
1032
    alsa_asoundlib_h
1033
    altivec_h
1034
    arpa_inet_h
1035
    attribute_may_alias
1036
    attribute_packed
1037
    bswap
1038
    closesocket
1039
    cmov
1040
    dcbzl
1041
    dev_bktr_ioctl_bt848_h
1042
    dev_bktr_ioctl_meteor_h
1043
    dev_ic_bt8xx_h
1044
    dev_video_meteor_ioctl_meteor_h
1045
    dev_video_bktr_ioctl_bt848_h
1046
    dlfcn_h
1047
    dlopen
1048
    dos_paths
1049
    ebp_available
1050
    ebx_available
1051
    exp2
1052
    exp2f
1053
    fast_64bit
1054
    fast_clz
1055
    fast_cmov
1056
    fcntl
1057
    fork
1058
    getaddrinfo
1059
    gethrtime
1060
    GetProcessMemoryInfo
1061
    GetProcessTimes
1062
    getrusage
1063
    gnu_as
1064
    struct_rusage_ru_maxrss
1065
    ibm_asm
1066
    inet_aton
1067
    inline_asm
1068
    isatty
1069
    kbhit
1070
    ldbrx
1071
    libdc1394_1
1072
    libdc1394_2
1073
    llrint
1074
    llrintf
1075
    local_aligned_16
1076
    local_aligned_8
1077
    log2
1078
    log2f
1079
    loongson
1080
    lrint
1081
    lrintf
1082
    lzo1x_999_compress
1083
    machine_ioctl_bt848_h
1084
    machine_ioctl_meteor_h
1085
    malloc_h
1086
    MapViewOfFile
1087
    memalign
1088
    mkstemp
1089
    mmap
1090
    pld
1091
    posix_memalign
1092
    round
1093
    roundf
1094
    sdl
1095
    sdl_video_size
1096
    setmode
1097
    socklen_t
1098
    soundcard_h
1099
    poll_h
1100
    setrlimit
1101
    strerror_r
1102
    strtok_r
1103
    struct_addrinfo
1104
    struct_ipv6_mreq
1105
    struct_sockaddr_in6
1106
    struct_sockaddr_sa_len
1107
    struct_sockaddr_storage
1108
    symver
1109
    symver_gnu_asm
1110
    symver_asm_label
1111
    sys_mman_h
1112
    sys_resource_h
1113
    sys_select_h
1114
    sys_soundcard_h
1115
    sys_videoio_h
1116
    ten_operands
1117
    threads
1118
    truncf
1119
    vfp_args
1120
    VirtualAlloc
1121
    winsock2_h
1122
    xform_asm
1123
    xmm_clobbers
1124
    yasm
1125
"
1126

    
1127
# options emitted with CONFIG_ prefix but not available on command line
1128
CONFIG_EXTRA="
1129
    avutil
1130
    gplv3
1131
    lgplv3
1132
"
1133

    
1134
CMDLINE_SELECT="
1135
    $ARCH_EXT_LIST
1136
    $CONFIG_LIST
1137
    $THREADS_LIST
1138
    asm
1139
    cross_compile
1140
    debug
1141
    extra_warnings
1142
    logging
1143
    optimizations
1144
    stripping
1145
    symver
1146
    yasm
1147
"
1148

    
1149
PATHS_LIST='
1150
    bindir
1151
    datadir
1152
    incdir
1153
    libdir
1154
    mandir
1155
    prefix
1156
    shlibdir
1157
'
1158

    
1159
CMDLINE_SET="
1160
    $PATHS_LIST
1161
    ar
1162
    arch
1163
    as
1164
    build_suffix
1165
    cc
1166
    cpu
1167
    cross_prefix
1168
    dep_cc
1169
    extra_version
1170
    host_cc
1171
    host_cflags
1172
    host_ldflags
1173
    host_libs
1174
    host_os
1175
    ld
1176
    logfile
1177
    malloc_prefix
1178
    nm
1179
    pkg_config
1180
    samples
1181
    source_path
1182
    strip
1183
    sysinclude
1184
    sysroot
1185
    target_exec
1186
    target_os
1187
    target_path
1188
"
1189

    
1190
CMDLINE_APPEND="
1191
    extra_cflags
1192
"
1193

    
1194
# code dependency declarations
1195

    
1196
# architecture extensions
1197

    
1198
armv5te_deps="arm"
1199
armv6_deps="arm"
1200
armv6t2_deps="arm"
1201
armvfp_deps="arm"
1202
iwmmxt_deps="arm"
1203
neon_deps="arm"
1204

    
1205
mmi_deps="mips"
1206

    
1207
altivec_deps="ppc"
1208
ppc4xx_deps="ppc"
1209

    
1210
vis_deps="sparc"
1211

    
1212
x86_64_suggest="cmov fast_cmov"
1213
amd3dnow_deps="mmx"
1214
amd3dnowext_deps="amd3dnow"
1215
mmx_deps="x86"
1216
mmx2_deps="mmx"
1217
sse_deps="mmx"
1218
ssse3_deps="sse"
1219
avx_deps="ssse3"
1220

    
1221
aligned_stack_if_any="ppc x86"
1222
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1223
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1224
fast_unaligned_if_any="armv6 ppc x86"
1225

    
1226
need_memalign="altivec neon sse"
1227
inline_asm_deps="!tms470"
1228

    
1229
symver_if_any="symver_asm_label symver_gnu_asm"
1230

    
1231
# subsystems
1232
dct_select="rdft"
1233
mdct_select="fft"
1234
rdft_select="fft"
1235

    
1236
# decoders / encoders / hardware accelerators
1237
aac_decoder_select="mdct rdft sinewin"
1238
aac_encoder_select="mdct sinewin"
1239
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1240
ac3_decoder_select="mdct ac3_parser"
1241
ac3_encoder_select="mdct ac3dsp"
1242
ac3_fixed_encoder_select="ac3dsp"
1243
alac_encoder_select="lpc"
1244
amrnb_decoder_select="lsp"
1245
amrwb_decoder_select="lsp"
1246
atrac1_decoder_select="mdct sinewin"
1247
atrac3_decoder_select="mdct"
1248
binkaudio_dct_decoder_select="mdct rdft dct"
1249
binkaudio_rdft_decoder_select="mdct rdft"
1250
cavs_decoder_select="golomb"
1251
cook_decoder_select="mdct sinewin"
1252
cscd_decoder_suggest="zlib"
1253
dca_decoder_select="mdct"
1254
dnxhd_encoder_select="aandct"
1255
dxa_decoder_select="zlib"
1256
eac3_decoder_select="ac3_decoder"
1257
eamad_decoder_select="aandct"
1258
eatgq_decoder_select="aandct"
1259
eatqi_decoder_select="aandct"
1260
ffv1_decoder_select="golomb"
1261
flac_decoder_select="golomb"
1262
flac_encoder_select="golomb lpc"
1263
flashsv_decoder_select="zlib"
1264
flashsv_encoder_select="zlib"
1265
flv_decoder_select="h263_decoder"
1266
flv_encoder_select="h263_encoder"
1267
fraps_decoder_select="huffman"
1268
h261_encoder_select="aandct"
1269
h263_decoder_select="h263_parser"
1270
h263_encoder_select="aandct"
1271
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1272
h263i_decoder_select="h263_decoder"
1273
h263p_encoder_select="h263_encoder"
1274
h264_decoder_select="golomb h264dsp h264pred"
1275
h264_dxva2_hwaccel_deps="dxva2api_h"
1276
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1277
h264_vaapi_hwaccel_select="vaapi"
1278
h264_vdpau_decoder_select="vdpau h264_decoder"
1279
imc_decoder_select="fft mdct"
1280
jpegls_decoder_select="golomb"
1281
jpegls_encoder_select="golomb"
1282
ljpeg_encoder_select="aandct"
1283
loco_decoder_select="golomb"
1284
mjpeg_encoder_select="aandct"
1285
mlp_decoder_select="mlp_parser"
1286
mp1float_decoder_select="dct"
1287
mp2float_decoder_select="dct"
1288
mp3adufloat_decoder_select="dct"
1289
mp3float_decoder_select="dct"
1290
mp3on4float_decoder_select="dct"
1291
mpeg1video_encoder_select="aandct"
1292
mpeg2video_encoder_select="aandct"
1293
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1294
mpeg4_encoder_select="h263_encoder"
1295
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1296
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1297
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1298
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1299
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1300
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1301
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1302
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1303
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1304
msmpeg4v1_decoder_select="h263_decoder"
1305
msmpeg4v1_encoder_select="h263_encoder"
1306
msmpeg4v2_decoder_select="h263_decoder"
1307
msmpeg4v2_encoder_select="h263_encoder"
1308
msmpeg4v3_decoder_select="h263_decoder"
1309
msmpeg4v3_encoder_select="h263_encoder"
1310
nellymoser_decoder_select="mdct sinewin"
1311
nellymoser_encoder_select="mdct sinewin"
1312
png_decoder_select="zlib"
1313
png_encoder_select="zlib"
1314
qcelp_decoder_select="lsp"
1315
qdm2_decoder_select="mdct rdft"
1316
ra_144_encoder_select="lpc"
1317
rv10_decoder_select="h263_decoder"
1318
rv10_encoder_select="h263_encoder"
1319
rv20_decoder_select="h263_decoder"
1320
rv20_encoder_select="h263_encoder"
1321
rv30_decoder_select="golomb h264pred"
1322
rv40_decoder_select="golomb h264pred"
1323
shorten_decoder_select="golomb"
1324
sipr_decoder_select="lsp"
1325
snow_decoder_select="dwt"
1326
snow_encoder_select="aandct dwt"
1327
svq1_encoder_select="aandct"
1328
svq3_decoder_select="golomb h264dsp h264pred"
1329
svq3_decoder_suggest="zlib"
1330
theora_decoder_select="vp3_decoder"
1331
tiff_decoder_suggest="zlib"
1332
tiff_encoder_suggest="zlib"
1333
truehd_decoder_select="mlp_decoder"
1334
tscc_decoder_select="zlib"
1335
twinvq_decoder_select="mdct lsp sinewin"
1336
vc1_decoder_select="h263_decoder"
1337
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1338
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1339
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1340
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1341
vorbis_decoder_select="mdct"
1342
vorbis_encoder_select="mdct"
1343
vp6_decoder_select="huffman"
1344
vp6a_decoder_select="vp6_decoder"
1345
vp6f_decoder_select="vp6_decoder"
1346
vp8_decoder_select="h264pred"
1347
wmapro_decoder_select="mdct sinewin"
1348
wmav1_decoder_select="mdct sinewin"
1349
wmav1_encoder_select="mdct sinewin"
1350
wmav2_decoder_select="mdct sinewin"
1351
wmav2_encoder_select="mdct sinewin"
1352
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1353
wmv1_decoder_select="h263_decoder"
1354
wmv1_encoder_select="h263_encoder"
1355
wmv2_decoder_select="h263_decoder"
1356
wmv2_encoder_select="h263_encoder"
1357
wmv3_decoder_select="vc1_decoder"
1358
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1359
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1360
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1361
zlib_decoder_select="zlib"
1362
zlib_encoder_select="zlib"
1363
zmbv_decoder_select="zlib"
1364
zmbv_encoder_select="zlib"
1365

    
1366
vaapi_deps="va_va_h"
1367
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1368

    
1369
# parsers
1370
h264_parser_select="golomb h264dsp h264pred"
1371

    
1372
# external libraries
1373
libdirac_decoder_deps="libdirac !libschroedinger"
1374
libdirac_encoder_deps="libdirac"
1375
libfaac_encoder_deps="libfaac"
1376
libgsm_decoder_deps="libgsm"
1377
libgsm_encoder_deps="libgsm"
1378
libgsm_ms_decoder_deps="libgsm"
1379
libgsm_ms_encoder_deps="libgsm"
1380
libmp3lame_encoder_deps="libmp3lame"
1381
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1382
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1383
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1384
libopenjpeg_decoder_deps="libopenjpeg"
1385
libschroedinger_decoder_deps="libschroedinger"
1386
libschroedinger_encoder_deps="libschroedinger"
1387
libspeex_decoder_deps="libspeex"
1388
libtheora_encoder_deps="libtheora"
1389
libvorbis_encoder_deps="libvorbis"
1390
libvpx_decoder_deps="libvpx"
1391
libvpx_encoder_deps="libvpx"
1392
libx264_encoder_deps="libx264"
1393
libxavs_encoder_deps="libxavs"
1394
libxvid_encoder_deps="libxvid"
1395

    
1396
# demuxers / muxers
1397
ac3_demuxer_select="ac3_parser"
1398
asf_stream_muxer_select="asf_muxer"
1399
avisynth_demuxer_deps="avisynth"
1400
dirac_demuxer_select="dirac_parser"
1401
eac3_demuxer_select="ac3_parser"
1402
flac_demuxer_select="flac_parser"
1403
ipod_muxer_select="mov_muxer"
1404
libnut_demuxer_deps="libnut"
1405
libnut_muxer_deps="libnut"
1406
matroska_audio_muxer_select="matroska_muxer"
1407
matroska_demuxer_suggest="zlib bzlib"
1408
mov_demuxer_suggest="zlib"
1409
mp3_demuxer_select="mpegaudio_parser"
1410
mp4_muxer_select="mov_muxer"
1411
mpegtsraw_demuxer_select="mpegts_demuxer"
1412
mxf_d10_muxer_select="mxf_muxer"
1413
ogg_demuxer_select="golomb"
1414
psp_muxer_select="mov_muxer"
1415
rtp_demuxer_select="sdp_demuxer"
1416
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1417
rtsp_demuxer_select="http_protocol rtpdec"
1418
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1419
sap_demuxer_select="sdp_demuxer"
1420
sap_muxer_select="rtp_muxer rtp_protocol"
1421
sdp_demuxer_select="rtpdec"
1422
spdif_muxer_select="aac_parser"
1423
tg2_muxer_select="mov_muxer"
1424
tgp_muxer_select="mov_muxer"
1425
w64_demuxer_deps="wav_demuxer"
1426

    
1427
# indevs / outdevs
1428
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1429
alsa_outdev_deps="alsa_asoundlib_h"
1430
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1431
dv1394_indev_deps="dv1394 dv_demuxer"
1432
jack_indev_deps="jack_jack_h"
1433
libdc1394_indev_deps="libdc1394"
1434
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1435
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1436
v4l_indev_deps="linux_videodev_h"
1437
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1438
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1439
vfwcap_indev_extralibs="-lavicap32"
1440
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1441
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1442

    
1443
# protocols
1444
gopher_protocol_deps="network"
1445
http_protocol_deps="network"
1446
http_protocol_select="tcp_protocol"
1447
mmsh_protocol_select="http_protocol"
1448
mmst_protocol_deps="network"
1449
rtmp_protocol_select="tcp_protocol"
1450
rtp_protocol_select="udp_protocol"
1451
tcp_protocol_deps="network"
1452
udp_protocol_deps="network"
1453

    
1454
# filters
1455
blackframe_filter_deps="gpl"
1456
cropdetect_filter_deps="gpl"
1457
frei0r_filter_deps="frei0r dlopen strtok_r"
1458
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1459
hqdn3d_filter_deps="gpl"
1460
scale_filter_deps="swscale"
1461
ocv_filter_deps="libopencv"
1462
yadif_filter_deps="gpl"
1463

    
1464
# libraries
1465
avdevice_deps="avcodec avformat"
1466
avformat_deps="avcodec"
1467

    
1468
# programs
1469
ffmpeg_deps="avcodec avformat swscale"
1470
ffmpeg_select="buffer_filter"
1471
ffplay_deps="avcodec avformat swscale sdl"
1472
ffplay_select="rdft"
1473
ffprobe_deps="avcodec avformat"
1474
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1475
ffserver_extralibs='$ldl'
1476

    
1477
doc_deps="texi2html"
1478

    
1479
# tests
1480

    
1481
test_deps(){
1482
    suf1=$1
1483
    suf2=$2
1484
    shift 2
1485
    for v; do
1486
        dep=${v%=*}
1487
        tests=${v#*=}
1488
        for name in ${tests}; do
1489
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1490
        done
1491
    done
1492
}
1493

    
1494
set_ne_test_deps(){
1495
    eval ${1}_be_test_deps="bigendian"
1496
    eval ${1}_le_test_deps="!bigendian"
1497
}
1498

    
1499
test_deps _encoder _decoder                                             \
1500
    adpcm_g726=g726                                                     \
1501
    adpcm_ima_qt                                                        \
1502
    adpcm_ima_wav                                                       \
1503
    adpcm_ms                                                            \
1504
    adpcm_swf                                                           \
1505
    adpcm_yamaha=adpcm_yam                                              \
1506
    alac                                                                \
1507
    asv1                                                                \
1508
    asv2                                                                \
1509
    bmp                                                                 \
1510
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1511
    dvvideo="dv dv50"                                                   \
1512
    ffv1                                                                \
1513
    flac                                                                \
1514
    flashsv                                                             \
1515
    flv                                                                 \
1516
    gif                                                                 \
1517
    h261                                                                \
1518
    h263="h263 h263p"                                                   \
1519
    huffyuv                                                             \
1520
    jpegls                                                              \
1521
    mjpeg="jpg mjpeg ljpeg"                                             \
1522
    mp2                                                                 \
1523
    mpeg1video="mpeg mpeg1b"                                            \
1524
    mpeg2video="mpeg2 mpeg2thread"                                      \
1525
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1526
    msmpeg4v3=msmpeg4                                                   \
1527
    msmpeg4v2                                                           \
1528
    pbm=pbmpipe                                                         \
1529
    pcx                                                                 \
1530
    pgm="pgm pgmpipe"                                                   \
1531
    png                                                                 \
1532
    ppm="ppm ppmpipe"                                                   \
1533
    rawvideo="rgb yuv"                                                  \
1534
    roq                                                                 \
1535
    rv10                                                                \
1536
    rv20                                                                \
1537
    sgi                                                                 \
1538
    snow="snow snowll"                                                  \
1539
    svq1                                                                \
1540
    targa=tga                                                           \
1541
    tiff                                                                \
1542
    wmav1                                                               \
1543
    wmav2                                                               \
1544
    wmv1                                                                \
1545
    wmv2                                                                \
1546

    
1547
test_deps _muxer _demuxer                                               \
1548
    aiff                                                                \
1549
    pcm_alaw=alaw                                                       \
1550
    asf                                                                 \
1551
    au                                                                  \
1552
    avi                                                                 \
1553
    dv=dv_fmt                                                           \
1554
    ffm                                                                 \
1555
    flv=flv_fmt                                                         \
1556
    gxf                                                                 \
1557
    matroska=mkv                                                        \
1558
    mmf                                                                 \
1559
    mov                                                                 \
1560
    pcm_mulaw=mulaw                                                     \
1561
    mxf                                                                 \
1562
    nut                                                                 \
1563
    ogg                                                                 \
1564
    rawvideo=pixfmt                                                     \
1565
    rm                                                                  \
1566
    swf                                                                 \
1567
    mpegts=ts                                                           \
1568
    voc                                                                 \
1569
    wav                                                                 \
1570
    yuv4mpegpipe=yuv4mpeg                                               \
1571

    
1572
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1573
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1574

    
1575
set_ne_test_deps pixdesc
1576
set_ne_test_deps pixfmts_copy
1577
set_ne_test_deps pixfmts_crop
1578
set_ne_test_deps pixfmts_hflip
1579
set_ne_test_deps pixfmts_null
1580
set_ne_test_deps pixfmts_pad
1581
set_ne_test_deps pixfmts_scale
1582
set_ne_test_deps pixfmts_vflip
1583

    
1584
# default parameters
1585

    
1586
logfile="config.log"
1587

    
1588
# installation paths
1589
prefix_default="/usr/local"
1590
bindir_default='${prefix}/bin'
1591
datadir_default='${prefix}/share/ffmpeg'
1592
incdir_default='${prefix}/include'
1593
libdir_default='${prefix}/lib'
1594
mandir_default='${prefix}/share/man'
1595
shlibdir_default="$libdir_default"
1596

    
1597
# toolchain
1598
ar_default="ar"
1599
cc_default="gcc"
1600
cc_version=\"unknown\"
1601
host_cc_default="gcc"
1602
ln_s="ln -sf"
1603
nm_default="nm"
1604
objformat="elf"
1605
pkg_config_default=pkg-config
1606
ranlib="ranlib"
1607
strip_default="strip"
1608
yasmexe="yasm"
1609
nogas=":"
1610

    
1611
nm_opts='-g'
1612

    
1613
# machine
1614
arch_default=$(uname -m)
1615
cpu="generic"
1616

    
1617
# OS
1618
target_os_default=$(tolower $(uname -s))
1619
host_os=$target_os_default
1620

    
1621
# configurable options
1622
enable avcodec
1623
enable avdevice
1624
enable avfilter
1625
enable avformat
1626
enable avutil
1627
enable asm
1628
enable debug
1629
enable doc
1630
enable fastdiv
1631
enable ffmpeg
1632
enable ffplay
1633
enable ffprobe
1634
enable ffserver
1635
enable mpegaudio_hp
1636
enable network
1637
enable optimizations
1638
enable protocols
1639
enable static
1640
enable stripping
1641
enable swscale
1642
enable swscale_alpha
1643

    
1644
# build settings
1645
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1646
FFSERVERLDFLAGS=-Wl,-E
1647
LIBPREF="lib"
1648
LIBSUF=".a"
1649
FULLNAME='$(NAME)$(BUILDSUF)'
1650
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1651
SLIBPREF="lib"
1652
SLIBSUF=".so"
1653
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1654
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1655
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1656
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1657

    
1658
CC_O='-o $@'
1659

    
1660
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1661
host_libs='-lm'
1662

    
1663
target_path='$(CURDIR)'
1664

    
1665
# since the object filename is not given with the -MM flag, the compiler
1666
# is only able to print the basename, and we must add the path ourselves
1667
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1668
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1669

    
1670
# find source path
1671
source_path="$(dirname "$0")"
1672
enable source_path_used
1673
if test -f configure; then
1674
    source_path="$(pwd)"
1675
    disable source_path_used
1676
else
1677
    source_path="$(cd "$source_path"; pwd)"
1678
    echo "$source_path" | grep -q '[[:blank:]]' &&
1679
        die "Out of tree builds are impossible with whitespace in source path."
1680
    test -e "$source_path/config.h" &&
1681
        die "Out of tree builds are impossible with config.h in source dir."
1682
fi
1683

    
1684
for v in "$@"; do
1685
    r=${v#*=}
1686
    l=${v%"$r"}
1687
    r=$(sh_quote "$r")
1688
    LIBAV_CONFIGURATION="${LIBAV_CONFIGURATION# } ${l}${r}"
1689
done
1690

    
1691
find_things(){
1692
    thing=$1
1693
    pattern=$2
1694
    file=$source_path/$3
1695
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1696
}
1697

    
1698
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1699
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1700
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1701
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1702
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1703
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1704
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1705
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1706
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1707
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1708
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1709

    
1710
find_tests(){
1711
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1712
}
1713

    
1714
ACODEC_TESTS=$(find_tests acodec)
1715
VCODEC_TESTS=$(find_tests vsynth1)
1716
LAVF_TESTS=$(find_tests lavf)
1717
LAVFI_TESTS=$(find_tests lavfi)
1718
SEEK_TESTS=$(find_tests seek seek_)
1719

    
1720
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1721

    
1722
for n in $COMPONENT_LIST; do
1723
    v=$(toupper ${n%s})_LIST
1724
    eval enable \$$v
1725
    eval ${n}_if_any="\$$v"
1726
done
1727

    
1728
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1729

    
1730
die_unknown(){
1731
    echo "Unknown option \"$1\"."
1732
    echo "See $0 --help for available options."
1733
    exit 1
1734
}
1735

    
1736
show_list() {
1737
    suffix=_$1
1738
    shift
1739
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1740
    exit 0
1741
}
1742

    
1743
for opt do
1744
    optval="${opt#*=}"
1745
    case "$opt" in
1746
    --extra-ldflags=*) add_ldflags $optval
1747
    ;;
1748
    --extra-libs=*) add_extralibs $optval
1749
    ;;
1750
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1751
    ;;
1752
    --enable-debug=*) debuglevel="$optval"
1753
    ;;
1754
    --disable-everything)
1755
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1756
    ;;
1757
    --enable-*=*|--disable-*=*)
1758
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1759
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1760
    eval list=\$$(toupper $thing)_LIST
1761
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1762
    $action $(filter "$name" $list)
1763
    ;;
1764
    --enable-?*|--disable-?*)
1765
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1766
    if is_in $option $COMPONENT_LIST; then
1767
        test $action = disable && action=unset
1768
        eval $action \$$(toupper ${option%s})_LIST
1769
    elif is_in $option $CMDLINE_SELECT; then
1770
        $action $option
1771
    else
1772
        die_unknown $opt
1773
    fi
1774
    ;;
1775
    --list-*)
1776
        NAME="${opt#--list-}"
1777
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1778
        NAME=${NAME%s}
1779
        eval show_list $NAME \$$(toupper $NAME)_LIST
1780
    ;;
1781
    --help|-h) show_help
1782
    ;;
1783
    *)
1784
    optname="${opt%%=*}"
1785
    optname="${optname#--}"
1786
    optname=$(echo "$optname" | sed 's/-/_/g')
1787
    if is_in $optname $CMDLINE_SET; then
1788
        eval $optname='$optval'
1789
    elif is_in $optname $CMDLINE_APPEND; then
1790
        append $optname "$optval"
1791
    else
1792
         die_unknown $opt
1793
    fi
1794
    ;;
1795
    esac
1796
done
1797

    
1798
disabled logging && logfile=/dev/null
1799

    
1800
echo "# $0 $LIBAV_CONFIGURATION" > $logfile
1801
set >> $logfile
1802

    
1803
test -n "$cross_prefix" && enable cross_compile
1804

    
1805
if enabled cross_compile; then
1806
    test -n "$arch" && test -n "$target_os" ||
1807
        die "Must specify target arch and OS when cross-compiling"
1808
fi
1809

    
1810
set_default arch target_os
1811

    
1812
ar_default="${cross_prefix}${ar_default}"
1813
cc_default="${cross_prefix}${cc_default}"
1814
nm_default="${cross_prefix}${nm_default}"
1815
pkg_config_default="${cross_prefix}${pkg_config_default}"
1816
ranlib="${cross_prefix}${ranlib}"
1817
strip_default="${cross_prefix}${strip_default}"
1818

    
1819
sysinclude_default="${sysroot}/usr/include"
1820

    
1821
set_default cc nm pkg_config strip sysinclude
1822
enabled cross_compile || host_cc_default=$cc
1823
set_default host_cc
1824

    
1825
exesuf() {
1826
    case $1 in
1827
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1828
    esac
1829
}
1830

    
1831
EXESUF=$(exesuf $target_os)
1832
HOSTEXESUF=$(exesuf $host_os)
1833

    
1834
# set temporary file name
1835
: ${TMPDIR:=$TEMPDIR}
1836
: ${TMPDIR:=$TMP}
1837
: ${TMPDIR:=/tmp}
1838

    
1839
if ! check_cmd mktemp -u XXXXXX; then
1840
    # simple replacement for missing mktemp
1841
    # NOT SAFE FOR GENERAL USE
1842
    mktemp(){
1843
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1844
    }
1845
fi
1846

    
1847
tmpfile(){
1848
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1849
        (set -C; exec > $tmp) 2>/dev/null ||
1850
        die "Unable to create temporary file in $TMPDIR."
1851
    append TMPFILES $tmp
1852
    eval $1=$tmp
1853
}
1854

    
1855
trap 'rm -f -- $TMPFILES' EXIT
1856

    
1857
tmpfile TMPC  .c
1858
tmpfile TMPE  $EXESUF
1859
tmpfile TMPH  .h
1860
tmpfile TMPO  .o
1861
tmpfile TMPS  .S
1862
tmpfile TMPV  .ver
1863
tmpfile TMPSH .sh
1864
tmpfile TMPASM .asm
1865

    
1866
unset -f mktemp
1867

    
1868
chmod +x $TMPE
1869

    
1870
# make sure we can execute files in $TMPDIR
1871
cat > $TMPSH 2>> $logfile <<EOF
1872
#! /bin/sh
1873
EOF
1874
chmod +x $TMPSH >> $logfile 2>&1
1875
if ! $TMPSH >> $logfile 2>&1; then
1876
    cat <<EOF
1877
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1878
variable to another directory and make sure that it is not mounted noexec.
1879
EOF
1880
    die "Sanity test failed."
1881
fi
1882

    
1883
filter_cflags=echo
1884
filter_cppflags=echo
1885
filter_asflags=echo
1886

    
1887
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1888
    cc_type=llvm_gcc
1889
    cc_version=__VERSION__
1890
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1891
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1892
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1893
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1894
    speed_cflags='-O3'
1895
    size_cflags='-Os'
1896
elif $cc -v 2>&1 | grep -qi ^gcc; then
1897
    cc_type=gcc
1898
    cc_version=__VERSION__
1899
    gcc_version=$($cc --version | head -n1)
1900
    gcc_basever=$($cc -dumpversion)
1901
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1902
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1903
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1904
    if ! $cc -dumpversion | grep -q '^2\.'; then
1905
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1906
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1907
    fi
1908
    speed_cflags='-O3'
1909
    size_cflags='-Os'
1910
elif $cc --version 2>/dev/null | grep -q Intel; then
1911
    cc_type=icc
1912
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1913
    cc_ident=$($cc --version | head -n1)
1914
    icc_version=$($cc -dumpversion)
1915
    CC_DEPFLAGS='-MMD'
1916
    AS_DEPFLAGS='-MMD'
1917
    speed_cflags='-O3'
1918
    size_cflags='-Os'
1919
    noopt_cflags='-O1'
1920
elif $cc -v 2>&1 | grep -q xlc; then
1921
    cc_type=xlc
1922
    cc_version="AV_STRINGIFY(__IBMC__)"
1923
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1924
    speed_cflags='-O5'
1925
    size_cflags='-O5 -qcompact'
1926
elif $cc -V 2>/dev/null | grep -q Compaq; then
1927
    cc_type=ccc
1928
    cc_version="AV_STRINGIFY(__DECC_VER)"
1929
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1930
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1931
    debuglevel=3
1932
    add_ldflags -Wl,-z,now # calls to libots crash without this
1933
    speed_cflags='-fast'
1934
    size_cflags='-O1'
1935
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1936
    test -d "$sysroot" || die "No valid sysroot specified."
1937
    cc_type=armcc
1938
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1939
    cc_ident=$($cc --vsn | head -n1)
1940
    armcc_conf="$PWD/armcc.conf"
1941
    $cc --arm_linux_configure                 \
1942
        --arm_linux_config_file="$armcc_conf" \
1943
        --configure_sysroot="$sysroot"        \
1944
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1945
        die "Error creating armcc configuration file."
1946
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1947
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1948
    as_default="${cross_prefix}gcc"
1949
    CC_DEPFLAGS='-MMD'
1950
    AS_DEPFLAGS='-MMD'
1951
    speed_cflags='-O3'
1952
    size_cflags='-Os'
1953
    filter_asflags="filter_out -W${armcc_opt}*"
1954
elif $cc -version 2>/dev/null | grep -q TMS470; then
1955
    cc_type=tms470
1956
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1957
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1958
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1959
    CC_O='-fr=$(@D)'
1960
    as_default="${cross_prefix}gcc"
1961
    ld_default="${cross_prefix}gcc"
1962
    TMPO=$(basename $TMPC .c).o
1963
    append TMPFILES $TMPO
1964
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1965
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1966
    AS_DEPFLAGS='-MMD'
1967
    speed_cflags='-O3 -mf=5'
1968
    size_cflags='-O3 -mf=2'
1969
    filter_cflags=tms470_flags
1970
    tms470_flags(){
1971
        for flag; do
1972
            case $flag in
1973
                -march=*|-mcpu=*)
1974
                    case "${flag#*=}" in
1975
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1976
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1977
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1978
                        armv6*|arm11*)          echo -mv=6   ;;
1979
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1980
                                                echo -mv=5e  ;;
1981
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1982
                    esac
1983
                    ;;
1984
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1985
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
1986
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
1987
                -msoft-float)   echo --float_support=vfplib       ;;
1988
                -O[0-3]|-mf=*)  echo $flag                        ;;
1989
                -g)             echo -g -mn                       ;;
1990
                -pds=*)         echo $flag                        ;;
1991
            esac
1992
        done
1993
    }
1994
elif $cc -v 2>&1 | grep -q clang; then
1995
    cc_type=clang
1996
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
1997
        cc_version=__clang_version__ || cc_version=__VERSION__
1998
    cc_ident=$($cc --version | head -n1)
1999
    CC_DEPFLAGS='-MMD'
2000
    AS_DEPFLAGS='-MMD'
2001
    speed_cflags='-O3'
2002
    size_cflags='-Os'
2003
elif $cc -V 2>&1 | grep -q Sun; then
2004
    cc_type=suncc
2005
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2006
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2007
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2008
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2009
    speed_cflags='-O5'
2010
    size_cflags='-O5 -xspace'
2011
    filter_cflags=suncc_flags
2012
    suncc_flags(){
2013
        for flag; do
2014
            case $flag in
2015
                -march=*|-mcpu=*)
2016
                    case "${flag#*=}" in
2017
                        native)                   echo -xtarget=native       ;;
2018
                        v9|niagara)               echo -xarch=sparc          ;;
2019
                        ultrasparc)               echo -xarch=sparcvis       ;;
2020
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2021
                        i586|pentium)             echo -xchip=pentium        ;;
2022
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2023
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2024
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2025
                        pentium4*)          echo -xtarget=pentium4           ;;
2026
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2027
                        *-sse3)             echo -xarch=sse3                 ;;
2028
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2029
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2030
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2031
                        k8|opteron|athlon64|athlon-fx)
2032
                                                  echo -xarch=sse2a          ;;
2033
                        athlon*)                  echo -xarch=pentium_proa   ;;
2034
                    esac
2035
                    ;;
2036
                -std=c99)             echo -xc99              ;;
2037
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2038
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2039
                -W*,*)                echo $flag              ;;
2040
                -f*-*|-W*)                                    ;;
2041
                *)                    echo $flag              ;;
2042
            esac
2043
        done
2044
    }
2045
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2046
    cc_type=pathscale
2047
    cc_version=__PATHSCALE__
2048
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2049
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2050
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2051
    speed_cflags='-O2'
2052
    size_cflags='-Os'
2053
elif $cc -v 2>&1 | grep -q Open64; then
2054
    cc_type=open64
2055
    cc_version=__OPEN64__
2056
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2057
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2058
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2059
    speed_cflags='-O2'
2060
    size_cflags='-Os'
2061
fi
2062

    
2063
test -n "$cc_type" && enable $cc_type ||
2064
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2065

    
2066
: ${as_default:=$cc}
2067
: ${dep_cc_default:=$cc}
2068
: ${ld_default:=$cc}
2069
set_default ar as dep_cc ld
2070

    
2071
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2072
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2073

    
2074
add_cflags $extra_cflags
2075
add_asflags $extra_cflags
2076

    
2077
if test -n "$sysroot"; then
2078
    case "$cc_type" in
2079
        gcc|llvm_gcc|clang)
2080
            add_cppflags --sysroot="$sysroot"
2081
            add_ldflags --sysroot="$sysroot"
2082
        ;;
2083
        tms470)
2084
            add_cppflags -I"$sysinclude"
2085
            add_ldflags  --sysroot="$sysroot"
2086
        ;;
2087
    esac
2088
fi
2089

    
2090
if test "$cpu" = host; then
2091
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2092

    
2093
    case "$cc_type" in
2094
        gcc|llvm_gcc)
2095
            check_native(){
2096
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2097
                sed -n "/$1=/{
2098
                            s/.*$1=\\([^ ]*\\).*/\\1/
2099
                            p
2100
                            q
2101
                        }" $TMPE
2102
            }
2103
            cpu=$(check_native -march || check_native -mcpu)
2104
        ;;
2105
    esac
2106

    
2107
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2108
fi
2109

    
2110
# Deal with common $arch aliases
2111
case "$arch" in
2112
    arm*)
2113
        arch="arm"
2114
    ;;
2115
    mips|mipsel|IP*)
2116
        arch="mips"
2117
    ;;
2118
    mips64*)
2119
        arch="mips"
2120
        subarch="mips64"
2121
    ;;
2122
    parisc|hppa)
2123
        arch="parisc"
2124
    ;;
2125
    parisc64|hppa64)
2126
        arch="parisc"
2127
        subarch="parisc64"
2128
    ;;
2129
    "Power Macintosh"|ppc|powerpc)
2130
        arch="ppc"
2131
    ;;
2132
    ppc64|powerpc64)
2133
        arch="ppc"
2134
        subarch="ppc64"
2135
    ;;
2136
    s390|s390x)
2137
        arch="s390"
2138
    ;;
2139
    sh4|sh)
2140
        arch="sh4"
2141
    ;;
2142
    sun4u|sparc64)
2143
        arch="sparc"
2144
        subarch="sparc64"
2145
    ;;
2146
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2147
        arch="x86"
2148
    ;;
2149
esac
2150

    
2151
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2152
enable $arch
2153

    
2154
# Add processor-specific flags
2155
if test "$cpu" = generic; then
2156
    : do nothing
2157
elif enabled ppc; then
2158

    
2159
    case $(tolower $cpu) in
2160
        601|ppc601|powerpc601)
2161
            cpuflags="-mcpu=601"
2162
            disable altivec
2163
        ;;
2164
        603*|ppc603*|powerpc603*)
2165
            cpuflags="-mcpu=603"
2166
            disable altivec
2167
        ;;
2168
        604*|ppc604*|powerpc604*)
2169
            cpuflags="-mcpu=604"
2170
            disable altivec
2171
        ;;
2172
        g3|75*|ppc75*|powerpc75*)
2173
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2174
            disable altivec
2175
        ;;
2176
        g4|745*|ppc745*|powerpc745*)
2177
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2178
        ;;
2179
        74*|ppc74*|powerpc74*)
2180
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2181
        ;;
2182
        g5|970|ppc970|powerpc970|power4*)
2183
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2184
        ;;
2185
        cell)
2186
            cpuflags="-mcpu=cell"
2187
            enable ldbrx
2188
        ;;
2189
        e500v2)
2190
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2191
            disable altivec
2192
        ;;
2193
        e500)
2194
            cpuflags="-mcpu=8540 -mhard-float"
2195
            disable altivec
2196
        ;;
2197
    esac
2198

    
2199
elif enabled x86; then
2200

    
2201
    case $cpu in
2202
        i[345]86|pentium)
2203
            cpuflags="-march=$cpu"
2204
            disable mmx
2205
        ;;
2206
        # targets that do NOT support conditional mov (cmov)
2207
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2208
            cpuflags="-march=$cpu"
2209
            disable cmov
2210
        ;;
2211
        # targets that do support conditional mov (cmov)
2212
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2213
            cpuflags="-march=$cpu"
2214
            enable cmov
2215
            enable fast_cmov
2216
        ;;
2217
        # targets that do support conditional mov but on which it's slow
2218
        pentium4|pentium4m|prescott|nocona)
2219
            cpuflags="-march=$cpu"
2220
            enable cmov
2221
            disable fast_cmov
2222
        ;;
2223
    esac
2224

    
2225
elif enabled sparc; then
2226

    
2227
    case $cpu in
2228
        niagara)
2229
            cpuflags="-mcpu=$cpu"
2230
            disable vis
2231
        ;;
2232
        sparc64)
2233
            cpuflags="-mcpu=v9"
2234
        ;;
2235
    esac
2236

    
2237
elif enabled arm; then
2238

    
2239
    case $cpu in
2240
        armv*)
2241
            cpuflags="-march=$cpu"
2242
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2243
        ;;
2244
        *)
2245
            cpuflags="-mcpu=$cpu"
2246
            case $cpu in
2247
                cortex-a*)                               subarch=armv7a  ;;
2248
                cortex-r*)                               subarch=armv7r  ;;
2249
                cortex-m*)                               subarch=armv7m  ;;
2250
                arm11*)                                  subarch=armv6   ;;
2251
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2252
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2253
            esac
2254
        ;;
2255
    esac
2256

    
2257
elif enabled alpha; then
2258

    
2259
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2260

    
2261
elif enabled bfin; then
2262

    
2263
    cpuflags="-mcpu=$cpu"
2264

    
2265
elif enabled mips; then
2266

    
2267
    cpuflags="-march=$cpu"
2268

    
2269
elif enabled avr32; then
2270

    
2271
    case $cpu in
2272
        ap7[02]0[0-2])
2273
            subarch="avr32_ap"
2274
            cpuflags="-mpart=$cpu"
2275
        ;;
2276
        ap)
2277
            subarch="avr32_ap"
2278
            cpuflags="-march=$cpu"
2279
        ;;
2280
        uc3[ab]*)
2281
            subarch="avr32_uc"
2282
            cpuflags="-mcpu=$cpu"
2283
        ;;
2284
        uc)
2285
            subarch="avr32_uc"
2286
            cpuflags="-march=$cpu"
2287
        ;;
2288
    esac
2289

    
2290
fi
2291

    
2292
add_cflags $cpuflags
2293
add_asflags $cpuflags
2294

    
2295
# compiler sanity check
2296
check_exec <<EOF
2297
int main(void){ return 0; }
2298
EOF
2299
if test "$?" != 0; then
2300
    echo "$cc is unable to create an executable file."
2301
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2302
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2303
        echo "Only do this if you know what cross compiling means."
2304
    fi
2305
    die "C compiler test failed."
2306
fi
2307

    
2308
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2309
check_cflags -std=c99
2310
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2311
#include <stdlib.h>
2312
EOF
2313
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2314
#include <stdlib.h>
2315
EOF
2316

    
2317
check_host_cflags -std=c99
2318

    
2319
case "$arch" in
2320
    alpha|ia64|mips|parisc|sparc)
2321
        spic=$shared
2322
    ;;
2323
    x86)
2324
        subarch="x86_32"
2325
        check_cc <<EOF && subarch="x86_64"
2326
        int test[(int)sizeof(char*) - 7];
2327
EOF
2328
        if test "$subarch" = "x86_64"; then
2329
            spic=$shared
2330
        fi
2331
    ;;
2332
esac
2333

    
2334
enable $subarch
2335
enabled spic && enable pic
2336

    
2337
# OS specific
2338
case $target_os in
2339
    haiku)
2340
        prefix_default="/boot/common"
2341
        network_extralibs="-lnetwork"
2342
        host_libs=
2343
        ;;
2344
    sunos)
2345
        FFSERVERLDFLAGS=""
2346
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2347
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2348
        network_extralibs="-lsocket -lnsl"
2349
        add_cppflags -D__EXTENSIONS__
2350
        nm_opts='-P -g'
2351
        ;;
2352
    netbsd)
2353
        disable symver
2354
        oss_indev_extralibs="-lossaudio"
2355
        oss_outdev_extralibs="-lossaudio"
2356
        add_cppflags -D_XOPEN_SOURCE=600
2357
        ;;
2358
    openbsd)
2359
        enable malloc_aligned
2360
        # On OpenBSD 4.5. the compiler does not use PIC unless
2361
        # explicitly using -fPIC. Libav builds fine without PIC,
2362
        # however the generated executable will not do anything
2363
        # (simply quits with exit-code 1, no crash, no output).
2364
        # Thus explicitly enable PIC here.
2365
        enable pic
2366
        disable symver
2367
        SHFLAGS='-shared'
2368
        oss_indev_extralibs="-lossaudio"
2369
        oss_outdev_extralibs="-lossaudio"
2370
        ;;
2371
    dragonfly)
2372
        enable malloc_aligned
2373
        disable symver
2374
        ;;
2375
    freebsd)
2376
        enable malloc_aligned
2377
        ;;
2378
    bsd/os)
2379
        add_extralibs -lpoll -lgnugetopt
2380
        strip="strip -d"
2381
        ;;
2382
    darwin)
2383
        enable malloc_aligned
2384
        gas="gas-preprocessor.pl $cc"
2385
        enabled ppc && add_asflags -force_cpusubtype_ALL
2386
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2387
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2388
        strip="${strip} -x"
2389
        add_ldflags -Wl,-dynamic,-search_paths_first
2390
        SLIBSUF=".dylib"
2391
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2392
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2393
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2394
        objformat="macho"
2395
        enabled x86_64 && objformat="macho64"
2396
        enabled_any pic shared ||
2397
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2398
        ;;
2399
    mingw32*)
2400
        if test $target_os = "mingw32ce"; then
2401
            disable network
2402
        else
2403
            target_os=mingw32
2404
        fi
2405
        LIBTARGET=i386
2406
        if enabled x86_64; then
2407
            enable malloc_aligned
2408
            LIBTARGET="i386:x86-64"
2409
        elif enabled arm; then
2410
            LIBTARGET=arm-wince
2411
        fi
2412
        shlibdir_default="$bindir_default"
2413
        SLIBPREF=""
2414
        SLIBSUF=".dll"
2415
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2416
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2417
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2418
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2419
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2420
            install -d "$(LIBDIR)"; \
2421
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2422
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2423
        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'
2424
        objformat="win32"
2425
        dlltool="${cross_prefix}dlltool"
2426
        enable dos_paths
2427
        check_cflags -fno-common
2428
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2429
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2430
                die "ERROR: MinGW runtime version must be >= 3.15."
2431
        ;;
2432
    cygwin*)
2433
        target_os=cygwin
2434
        shlibdir_default="$bindir_default"
2435
        SLIBPREF="cyg"
2436
        SLIBSUF=".dll"
2437
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2438
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2439
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2440
        objformat="win32"
2441
        enable dos_paths
2442
        check_cflags -fno-common
2443
        ;;
2444
    *-dos|freedos|opendos)
2445
        network_extralibs="-lsocket"
2446
        objformat="coff"
2447
        enable dos_paths
2448
        ;;
2449
    linux)
2450
        enable dv1394
2451
        ;;
2452
    irix*)
2453
        target_os=irix
2454
        ranlib="echo ignoring ranlib"
2455
        ;;
2456
    os/2*)
2457
        strip="lxlite -CS"
2458
        ln_s="cp -f"
2459
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2460
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2461
        FFSERVERLDFLAGS=""
2462
        LIBSUF="_s.a"
2463
        SLIBPREF=""
2464
        SLIBSUF=".dll"
2465
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2466
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2467
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2468
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2469
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2470
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2471
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2472
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2473
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2474
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2475
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2476
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2477
        enable dos_paths
2478
        ;;
2479
    gnu/kfreebsd)
2480
        ;;
2481
    gnu)
2482
        ;;
2483
    qnx)
2484
        add_cppflags -D_QNX_SOURCE
2485
        network_extralibs="-lsocket"
2486
        ;;
2487
    none)
2488
        ;;
2489
    *)
2490
        die "Unknown OS '$target_os'."
2491
        ;;
2492
esac
2493

    
2494
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$LIBAV_CONFIGURATION" >config.fate
2495

    
2496
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2497

    
2498
set_default $PATHS_LIST
2499

    
2500
# we need to build at least one lib type
2501
if ! enabled_any static shared; then
2502
    cat <<EOF
2503
At least one library type must be built.
2504
Specify --enable-static to build the static libraries or --enable-shared to
2505
build the shared libraries as well. To only build the shared libraries specify
2506
--disable-static in addition to --enable-shared.
2507
EOF
2508
    exit 1;
2509
fi
2510

    
2511
disabled static && LIBNAME=""
2512

    
2513
die_license_disabled() {
2514
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2515
}
2516

    
2517
die_license_disabled gpl libx264
2518
die_license_disabled gpl libxavs
2519
die_license_disabled gpl libxvid
2520
die_license_disabled gpl postproc
2521
die_license_disabled gpl x11grab
2522

    
2523
die_license_disabled nonfree libfaac
2524

    
2525
die_license_disabled version3 libopencore_amrnb
2526
die_license_disabled version3 libopencore_amrwb
2527

    
2528
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2529

    
2530
disabled optimizations || check_cflags -fomit-frame-pointer
2531

    
2532
enable_pic() {
2533
    enable pic
2534
    add_cppflags -DPIC
2535
    add_cflags   -fPIC
2536
    add_asflags  -fPIC
2537
}
2538

    
2539
enabled pic && enable_pic
2540

    
2541
check_cc <<EOF || die "Symbol mangling check failed."
2542
int ff_extern;
2543
EOF
2544
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2545
extern_prefix=${sym%%ff_extern*}
2546

    
2547
check_cc <<EOF && enable inline_asm
2548
void foo(void) { __asm__ volatile ("" ::); }
2549
EOF
2550

    
2551
_restrict=
2552
for restrict_keyword in restrict __restrict__ __restrict; do
2553
    check_cc <<EOF && _restrict=$restrict_keyword && break
2554
void foo(char * $restrict_keyword p);
2555
EOF
2556
done
2557

    
2558
check_cc <<EOF && enable attribute_packed
2559
struct { int x; } __attribute__((packed)) x;
2560
EOF
2561

    
2562
check_cc <<EOF && enable attribute_may_alias
2563
union { int x; } __attribute__((may_alias)) x;
2564
EOF
2565

    
2566
check_cc <<EOF || die "endian test failed"
2567
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2568
EOF
2569
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2570

    
2571
if enabled alpha; then
2572

    
2573
    check_cflags -mieee
2574

    
2575
elif enabled arm; then
2576

    
2577
    check_cflags -marm
2578
    nogas=die
2579

    
2580
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2581
        enable vfp_args
2582
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2583
        case "${cross_prefix:-$cc}" in
2584
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2585
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2586
__asm__ (".eabi_attribute 28, 1");
2587
int main(void) { return 0; }
2588
EOF
2589
        esac
2590
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2591
    fi
2592

    
2593
    # We have to check if pld is a nop and disable it.
2594
    check_asm pld '"pld [r0]"'
2595

    
2596
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2597
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2598
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2599
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2600
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2601
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2602

    
2603
    enabled_all armv6t2 shared !pic && enable_pic
2604

    
2605
elif enabled mips; then
2606

    
2607
    check_asm loongson '"dmult.g $1, $2, $3"'
2608
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2609

    
2610
elif enabled ppc; then
2611

    
2612
    enable local_aligned_8 local_aligned_16
2613

    
2614
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2615
    check_asm ibm_asm   '"add 0, 0, 0"'
2616
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2617
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2618

    
2619
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2620
    if enabled altivec; then
2621
        nogas=warn
2622
        check_cflags -maltivec -mabi=altivec &&
2623
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2624
        check_cflags -faltivec
2625

    
2626
        # check if our compiler supports Motorola AltiVec C API
2627
        check_cc <<EOF || disable altivec
2628
$inc_altivec_h
2629
int main(void) {
2630
    vector signed int v1, v2, v3;
2631
    v1 = vec_add(v2,v3);
2632
    return 0;
2633
}
2634
EOF
2635

    
2636
        # check if our compiler supports braces for vector declarations
2637
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2638
$inc_altivec_h
2639
int main (void) { (vector int) {1}; return 0; }
2640
EOF
2641
    fi
2642

    
2643
elif enabled sparc; then
2644

    
2645
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2646
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2647

    
2648
elif enabled x86; then
2649

    
2650
    enable local_aligned_8 local_aligned_16
2651

    
2652
    # check whether EBP is available on x86
2653
    # As 'i' is stored on the stack, this program will crash
2654
    # if the base pointer is used to access it because the
2655
    # base pointer is cleared in the inline assembly code.
2656
    check_exec_crash <<EOF && enable ebp_available
2657
    volatile int i=0;
2658
    __asm__ volatile (
2659
        "xorl %%ebp, %%ebp"
2660
    ::: "%ebp");
2661
    return i;
2662
EOF
2663

    
2664
    # check whether EBX is available on x86
2665
    check_asm ebx_available '""::"b"(0)' &&
2666
        check_asm ebx_available '"":::"%ebx"'
2667

    
2668
    # check whether xmm clobbers are supported
2669
    check_asm xmm_clobbers '"":::"%xmm0"'
2670

    
2671
    # check whether more than 10 operands are supported
2672
    check_cc <<EOF && enable ten_operands
2673
int main(void) {
2674
    int x=0;
2675
    __asm__ volatile(
2676
        ""
2677
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2678
    );
2679
    return 0;
2680
}
2681
EOF
2682

    
2683
    # check whether binutils is new enough to compile SSSE3/MMX2
2684
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2685
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2686

    
2687
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2688

    
2689
    if ! disabled_any asm mmx yasm; then
2690
        if check_cmd $yasmexe --version; then
2691
            enabled x86_64 && yasm_extra="-m amd64"
2692
            yasm_debug="-g dwarf2"
2693
        elif check_cmd nasm -v; then
2694
            yasmexe=nasm
2695
            yasm_debug="-g -F dwarf"
2696
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2697
        fi
2698

    
2699
        YASMFLAGS="-f $objformat $yasm_extra"
2700
        enabled pic               && append YASMFLAGS "-DPIC"
2701
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2702
        case "$objformat" in
2703
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2704
        esac
2705

    
2706
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2707
            die "yasm not found, use --disable-yasm for a crippled build"
2708
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2709
    fi
2710

    
2711
    case "$cpu" in
2712
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2713
            disable fast_clz
2714
        ;;
2715
    esac
2716

    
2717
fi
2718

    
2719
if enabled asm; then
2720
    as=${gas:=$as}
2721
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2722
        $nogas "GNU assembler not found, install gas-preprocessor"
2723
fi
2724

    
2725
check_ldflags -Wl,--as-needed
2726

    
2727
if check_func dlopen; then
2728
    ldl=
2729
elif check_func dlopen -ldl; then
2730
    ldl=-ldl
2731
fi
2732

    
2733
if enabled network; then
2734
    check_type "sys/types.h sys/socket.h" socklen_t
2735
    check_type netdb.h "struct addrinfo"
2736
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2737
    check_type netinet/in.h "struct sockaddr_in6"
2738
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2739
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2740
    # Prefer arpa/inet.h over winsock2
2741
    if check_header arpa/inet.h ; then
2742
        check_func closesocket
2743
    elif check_header winsock2.h ; then
2744
        check_func_headers winsock2.h closesocket -lws2 && \
2745
            network_extralibs="-lws2" || \
2746
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2747
            network_extralibs="-lws2_32"; }
2748
        check_type ws2tcpip.h socklen_t
2749
        check_type ws2tcpip.h "struct addrinfo"
2750
        check_type ws2tcpip.h "struct ipv6_mreq"
2751
        check_type ws2tcpip.h "struct sockaddr_in6"
2752
        check_type ws2tcpip.h "struct sockaddr_storage"
2753
        check_struct winsock2.h "struct sockaddr" sa_len
2754
    else
2755
        disable network
2756
    fi
2757
fi
2758

    
2759
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2760
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2761

    
2762
check_func  fcntl
2763
check_func  fork
2764
check_func  getaddrinfo $network_extralibs
2765
check_func  gethrtime
2766
check_func  getrusage
2767
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2768
check_func  inet_aton $network_extralibs
2769
check_func  isatty
2770
check_func  ${malloc_prefix}memalign            && enable memalign
2771
check_func  mkstemp
2772
check_func  mmap
2773
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2774
check_func  setrlimit
2775
check_func  strerror_r
2776
check_func  strtok_r
2777
check_func_headers conio.h kbhit
2778
check_func_headers io.h setmode
2779
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2780
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2781
check_func_headers windows.h GetProcessTimes
2782
check_func_headers windows.h MapViewOfFile
2783
check_func_headers windows.h VirtualAlloc
2784

    
2785
check_header dlfcn.h
2786
check_header dxva2api.h
2787
check_header malloc.h
2788
check_header poll.h
2789
check_header sys/mman.h
2790
check_header sys/resource.h
2791
check_header sys/select.h
2792
check_header vdpau/vdpau.h
2793
check_header vdpau/vdpau_x11.h
2794
check_header X11/extensions/XvMClib.h
2795

    
2796
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2797

    
2798
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2799
     enabled_any $need_memalign ; then
2800
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2801
fi
2802

    
2803
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2804
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2805

    
2806
# check for some common methods of building with pthread support
2807
# do this before the optional library checks as some of them require pthreads
2808
if ! disabled pthreads && ! enabled w32threads; then
2809
    enable pthreads
2810
    if check_func pthread_create; then
2811
        :
2812
    elif check_func pthread_create -pthread; then
2813
        add_cflags -pthread
2814
        add_extralibs -pthread
2815
    elif check_func pthread_create -pthreads; then
2816
        add_cflags -pthreads
2817
        add_extralibs -pthreads
2818
    elif check_func pthread_create -lpthreadGC2; then
2819
        add_extralibs -lpthreadGC2
2820
    elif ! check_lib pthread.h pthread_create -lpthread; then
2821
        disable pthreads
2822
    fi
2823
fi
2824

    
2825
for thread in $THREADS_LIST; do
2826
    if enabled $thread; then
2827
        test -n "$thread_type" &&
2828
            die "ERROR: Only one thread type must be selected." ||
2829
            thread_type="$thread"
2830
    fi
2831
done
2832

    
2833
check_lib math.h sin -lm
2834
disabled vaapi || check_lib va/va.h vaInitialize -lva
2835

    
2836
check_mathfunc exp2
2837
check_mathfunc exp2f
2838
check_mathfunc llrint
2839
check_mathfunc llrintf
2840
check_mathfunc log2
2841
check_mathfunc log2f
2842
check_mathfunc lrint
2843
check_mathfunc lrintf
2844
check_mathfunc round
2845
check_mathfunc roundf
2846
check_mathfunc truncf
2847

    
2848
# these are off by default, so fail if requested and not available
2849
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2850
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2851
enabled libdirac   && require_pkg_config dirac                          \
2852
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2853
    "dirac_decoder_init dirac_encoder_init"
2854
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2855
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2856
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2857
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2858
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2859
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2860
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2861
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2862
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2863
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2864
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2865
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2866
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2867
enabled libvpx     && {
2868
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2869
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2870
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2871
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2872
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2873
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2874
                        die "ERROR: libx264 version must be >= 0.99."; }
2875
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2876
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2877
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2878

    
2879
# libdc1394 check
2880
if enabled libdc1394; then
2881
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2882
        enable libdc1394_2; } ||
2883
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2884
        enable libdc1394_1; } ||
2885
    die "ERROR: No version of libdc1394 found "
2886
fi
2887

    
2888
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2889
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2890
    enable sdl &&
2891
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2892
fi
2893

    
2894
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2895

    
2896
check_header linux/videodev.h
2897
check_header linux/videodev2.h
2898
check_header sys/videoio.h
2899

    
2900
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2901
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2902
# w32api 3.12 had it defined wrong
2903
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2904

    
2905
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2906
{ check_header dev/bktr/ioctl_meteor.h &&
2907
  check_header dev/bktr/ioctl_bt848.h; } ||
2908
{ check_header machine/ioctl_meteor.h &&
2909
  check_header machine/ioctl_bt848.h; } ||
2910
{ check_header dev/video/meteor/ioctl_meteor.h &&
2911
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2912
check_header dev/ic/bt8xx.h
2913

    
2914
check_header sys/soundcard.h
2915
check_header soundcard.h
2916

    
2917
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2918

    
2919
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2920

    
2921
enabled x11grab                         &&
2922
check_header X11/Xlib.h                 &&
2923
check_header X11/extensions/XShm.h      &&
2924
check_header X11/extensions/Xfixes.h    &&
2925
check_func XOpenDisplay -lX11           &&
2926
check_func XShmCreateImage -lX11 -lXext &&
2927
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2928

    
2929
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2930
check_cpp_condition \
2931
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2932
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2933
      disable vdpau; }
2934
fi
2935

    
2936
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2937

    
2938
# add some useful compiler flags if supported
2939
check_cflags -Wdeclaration-after-statement
2940
check_cflags -Wall
2941
check_cflags -Wno-parentheses
2942
check_cflags -Wno-switch
2943
check_cflags -Wdisabled-optimization
2944
check_cflags -Wpointer-arith
2945
check_cflags -Wredundant-decls
2946
check_cflags -Wno-pointer-sign
2947
check_cflags -Wcast-qual
2948
check_cflags -Wwrite-strings
2949
check_cflags -Wtype-limits
2950
check_cflags -Wundef
2951
check_cflags -Wmissing-prototypes
2952
enabled extra_warnings && check_cflags -Winline
2953

    
2954
# add some linker flags
2955
check_ldflags -Wl,--warn-common
2956
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'
2957
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2958

    
2959
echo "X{};" > $TMPV
2960
if test_ldflags -Wl,--version-script,$TMPV; then
2961
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2962
    check_cc <<EOF && enable symver_asm_label
2963
void ff_foo(void) __asm__ ("av_foo@VERSION");
2964
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2965
EOF
2966
    check_cc <<EOF && enable symver_gnu_asm
2967
__asm__(".symver ff_foo,av_foo@VERSION");
2968
void ff_foo(void) {}
2969
EOF
2970
fi
2971

    
2972
if enabled small; then
2973
    add_cflags $size_cflags
2974
    optimizations="small"
2975
elif enabled optimizations; then
2976
    add_cflags $speed_cflags
2977
else
2978
    add_cflags $noopt_cflags
2979
fi
2980
check_cflags -fno-math-errno
2981
check_cflags -fno-signed-zeros
2982

    
2983
if enabled icc; then
2984
    # Just warnings, no remarks
2985
    check_cflags -w1
2986
    # -wd: Disable following warnings
2987
    # 144, 167, 556: -Wno-pointer-sign
2988
    # 1292: attribute "foo" ignored
2989
    # 10006: ignoring unknown option -fno-signed-zeros
2990
    # 10148: ignoring unknown option -Wno-parentheses
2991
    # 10156: ignoring option '-W'; no argument required
2992
    check_cflags -wd144,167,556,1292,10006,10148,10156
2993
    # 11030: Warning unknown option --as-needed
2994
    # 10156: ignoring option '-export'; no argument required
2995
    check_ldflags -wd10156,11030
2996
    # Allow to compile with optimizations
2997
    check_ldflags -march=$cpu
2998
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2999
    enable ebp_available
3000
    if enabled x86_32; then
3001
        test ${icc_version%%.*} -ge 11 && \
3002
            check_cflags -falign-stack=maintain-16-byte || \
3003
            disable aligned_stack
3004
    fi
3005
elif enabled ccc; then
3006
    # disable some annoying warnings
3007
    add_cflags -msg_disable cvtu32to64
3008
    add_cflags -msg_disable embedcomment
3009
    add_cflags -msg_disable needconstext
3010
    add_cflags -msg_disable nomainieee
3011
    add_cflags -msg_disable ptrmismatch1
3012
    add_cflags -msg_disable unreachcode
3013
elif enabled gcc; then
3014
    check_cflags -fno-tree-vectorize
3015
    check_cflags -Werror=implicit-function-declaration
3016
    check_cflags -Werror=missing-prototypes
3017
elif enabled llvm_gcc; then
3018
    check_cflags -mllvm -stack-alignment=16
3019
elif enabled clang; then
3020
    check_cflags -mllvm -stack-alignment=16
3021
    check_cflags -Qunused-arguments
3022
elif enabled armcc; then
3023
    # 2523: use of inline assembler is deprecated
3024
    add_cflags -W${armcc_opt},--diag_suppress=2523
3025
    add_cflags -W${armcc_opt},--diag_suppress=1207
3026
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3027
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3028
elif enabled tms470; then
3029
    add_cflags -pds=824 -pds=837
3030
elif enabled pathscale; then
3031
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3032
fi
3033

    
3034
enabled_any $THREADS_LIST      && enable threads
3035

    
3036
check_deps $CONFIG_LIST       \
3037
           $CONFIG_EXTRA      \
3038
           $HAVE_LIST         \
3039
           $DECODER_LIST      \
3040
           $ENCODER_LIST      \
3041
           $HWACCEL_LIST      \
3042
           $PARSER_LIST       \
3043
           $BSF_LIST          \
3044
           $DEMUXER_LIST      \
3045
           $MUXER_LIST        \
3046
           $FILTER_LIST       \
3047
           $INDEV_LIST        \
3048
           $OUTDEV_LIST       \
3049
           $PROTOCOL_LIST     \
3050
           $ACODEC_TESTS      \
3051
           $VCODEC_TESTS      \
3052
           $LAVF_TESTS        \
3053
           $LAVFI_TESTS       \
3054
           $SEEK_TESTS        \
3055

    
3056
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3057

    
3058
echo "install prefix            $prefix"
3059
echo "source path               $source_path"
3060
echo "C compiler                $cc"
3061
echo "ARCH                      $arch ($cpu)"
3062
if test "$build_suffix" != ""; then
3063
    echo "build suffix              $build_suffix"
3064
fi
3065
if test "$extra_version" != ""; then
3066
    echo "version string suffix     $extra_version"
3067
fi
3068
echo "big-endian                ${bigendian-no}"
3069
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3070
if enabled x86; then
3071
    echo "yasm                      ${yasm-no}"
3072
    echo "MMX enabled               ${mmx-no}"
3073
    echo "MMX2 enabled              ${mmx2-no}"
3074
    echo "3DNow! enabled            ${amd3dnow-no}"
3075
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3076
    echo "SSE enabled               ${sse-no}"
3077
    echo "SSSE3 enabled             ${ssse3-no}"
3078
    echo "CMOV enabled              ${cmov-no}"
3079
    echo "CMOV is fast              ${fast_cmov-no}"
3080
    echo "EBX available             ${ebx_available-no}"
3081
    echo "EBP available             ${ebp_available-no}"
3082
    echo "10 operands supported     ${ten_operands-no}"
3083
fi
3084
if enabled arm; then
3085
    echo "ARMv5TE enabled           ${armv5te-no}"
3086
    echo "ARMv6 enabled             ${armv6-no}"
3087
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3088
    echo "ARM VFP enabled           ${armvfp-no}"
3089
    echo "IWMMXT enabled            ${iwmmxt-no}"
3090
    echo "NEON enabled              ${neon-no}"
3091
fi
3092
if enabled mips; then
3093
    echo "MMI enabled               ${mmi-no}"
3094
fi
3095
if enabled ppc; then
3096
    echo "AltiVec enabled           ${altivec-no}"
3097
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3098
    echo "dcbzl available           ${dcbzl-no}"
3099
fi
3100
if enabled sparc; then
3101
    echo "VIS enabled               ${vis-no}"
3102
fi
3103
echo "debug symbols             ${debug-no}"
3104
echo "strip symbols             ${stripping-no}"
3105
echo "optimizations             ${optimizations-no}"
3106
echo "static                    ${static-no}"
3107
echo "shared                    ${shared-no}"
3108
echo "postprocessing support    ${postproc-no}"
3109
echo "new filter support        ${avfilter-no}"
3110
echo "network support           ${network-no}"
3111
echo "threading support         ${thread_type-no}"
3112
echo "SDL support               ${sdl-no}"
3113
echo "Sun medialib support      ${mlib-no}"
3114
echo "AVISynth enabled          ${avisynth-no}"
3115
echo "frei0r enabled            ${frei0r-no}"
3116
echo "libdc1394 support         ${libdc1394-no}"
3117
echo "libdirac enabled          ${libdirac-no}"
3118
echo "libfaac enabled           ${libfaac-no}"
3119
echo "libgsm enabled            ${libgsm-no}"
3120
echo "libmp3lame enabled        ${libmp3lame-no}"
3121
echo "libnut enabled            ${libnut-no}"
3122
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3123
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3124
echo "libopencv support         ${libopencv-no}"
3125
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3126
echo "librtmp enabled           ${librtmp-no}"
3127
echo "libschroedinger enabled   ${libschroedinger-no}"
3128
echo "libspeex enabled          ${libspeex-no}"
3129
echo "libtheora enabled         ${libtheora-no}"
3130
echo "libvorbis enabled         ${libvorbis-no}"
3131
echo "libvpx enabled            ${libvpx-no}"
3132
echo "libx264 enabled           ${libx264-no}"
3133
echo "libxavs enabled           ${libxavs-no}"
3134
echo "libxvid enabled           ${libxvid-no}"
3135
echo "zlib enabled              ${zlib-no}"
3136
echo "bzlib enabled             ${bzlib-no}"
3137
echo
3138

    
3139
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3140
    echo "Enabled ${type}s:"
3141
    eval list=\$$(toupper $type)_LIST
3142
    print_enabled '_*' $list | sort | pr -r -3 -t
3143
    echo
3144
done
3145

    
3146
license="LGPL version 2.1 or later"
3147
if enabled nonfree; then
3148
    license="nonfree and unredistributable"
3149
elif enabled gplv3; then
3150
    license="GPL version 3 or later"
3151
elif enabled lgplv3; then
3152
    license="LGPL version 3 or later"
3153
elif enabled gpl; then
3154
    license="GPL version 2 or later"
3155
fi
3156

    
3157
echo "License: $license"
3158

    
3159
echo "Creating config.mak and config.h..."
3160

    
3161
# build tree in object directory if source path is different from current one
3162
if enabled source_path_used; then
3163
    DIRS="
3164
        doc
3165
        libavcodec
3166
        libavcodec/$arch
3167
        libavdevice
3168
        libavfilter
3169
        libavfilter/$arch
3170
        libavformat
3171
        libavutil
3172
        libavutil/$arch
3173
        libpostproc
3174
        libswscale
3175
        libswscale/$arch
3176
        tests
3177
        tools
3178
    "
3179
    FILES="
3180
        Makefile
3181
        common.mak
3182
        subdir.mak
3183
        doc/texi2pod.pl
3184
        libavcodec/Makefile
3185
        libavcodec/${arch}/Makefile
3186
        libavdevice/Makefile
3187
        libavfilter/Makefile
3188
        libavfilter/${arch}/Makefile
3189
        libavformat/Makefile
3190
        libavutil/Makefile
3191
        libpostproc/Makefile
3192
        libswscale/Makefile
3193
    "
3194
    map 'mkdir -p $v' $DIRS;
3195
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3196
fi
3197

    
3198
enabled stripping || strip="echo skipping strip"
3199

    
3200
config_files="$TMPH config.mak"
3201

    
3202
cat > config.mak <<EOF
3203
# Automatically generated by configure - do not modify!
3204
ifndef LIBAV_CONFIG_MAK
3205
LIBAV_CONFIG_MAK=1
3206
LIBAV_CONFIGURATION=$LIBAV_CONFIGURATION
3207
prefix=$prefix
3208
LIBDIR=\$(DESTDIR)$libdir
3209
SHLIBDIR=\$(DESTDIR)$shlibdir
3210
INCDIR=\$(DESTDIR)$incdir
3211
BINDIR=\$(DESTDIR)$bindir
3212
DATADIR=\$(DESTDIR)$datadir
3213
MANDIR=\$(DESTDIR)$mandir
3214
SRC_PATH="$source_path"
3215
SRC_PATH_BARE=$source_path
3216
BUILD_ROOT="$PWD"
3217
CC_IDENT=$cc_ident
3218
ARCH=$arch
3219
CC=$cc
3220
AS=$as
3221
LD=$ld
3222
DEPCC=$dep_cc
3223
YASM=$yasmexe
3224
YASMDEP=$yasmexe
3225
AR=$ar
3226
RANLIB=$ranlib
3227
CP=cp -p
3228
LN_S=$ln_s
3229
STRIP=$strip
3230
CPPFLAGS=$CPPFLAGS
3231
CFLAGS=$CFLAGS
3232
ASFLAGS=$ASFLAGS
3233
CC_O=$CC_O
3234
DLLTOOL=$dlltool
3235
LDFLAGS=$LDFLAGS
3236
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3237
SHFLAGS=$SHFLAGS
3238
YASMFLAGS=$YASMFLAGS
3239
BUILDSUF=$build_suffix
3240
FULLNAME=$FULLNAME
3241
LIBPREF=$LIBPREF
3242
LIBSUF=$LIBSUF
3243
LIBNAME=$LIBNAME
3244
SLIBPREF=$SLIBPREF
3245
SLIBSUF=$SLIBSUF
3246
EXESUF=$EXESUF
3247
EXTRA_VERSION=$extra_version
3248
DEPFLAGS=$DEPFLAGS
3249
CCDEP=$CCDEP
3250
ASDEP=$ASDEP
3251
CC_DEPFLAGS=$CC_DEPFLAGS
3252
AS_DEPFLAGS=$AS_DEPFLAGS
3253
HOSTCC=$host_cc
3254
HOSTCFLAGS=$host_cflags
3255
HOSTEXESUF=$HOSTEXESUF
3256
HOSTLDFLAGS=$host_ldflags
3257
HOSTLIBS=$host_libs
3258
TARGET_EXEC=$target_exec
3259
TARGET_PATH=$target_path
3260
SDL_LIBS=$sdl_libs
3261
SDL_CFLAGS=$sdl_cflags
3262
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3263
EXTRALIBS=$extralibs
3264
INSTALL=install
3265
LIBTARGET=${LIBTARGET}
3266
SLIBNAME=${SLIBNAME}
3267
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3268
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3269
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3270
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3271
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3272
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3273
SAMPLES=${samples:-\$(FATE_SAMPLES)}
3274
EOF
3275

    
3276
get_version(){
3277
    name=$1
3278
    file=$source_path/$2
3279
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3280
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3281
    lcname=$(tolower $name)
3282
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3283
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3284
}
3285

    
3286
get_version LIBSWSCALE  libswscale/swscale.h
3287
get_version LIBPOSTPROC libpostproc/postprocess.h
3288
get_version LIBAVCODEC  libavcodec/version.h
3289
get_version LIBAVDEVICE libavdevice/avdevice.h
3290
get_version LIBAVFORMAT libavformat/version.h
3291
get_version LIBAVUTIL   libavutil/avutil.h
3292
get_version LIBAVFILTER libavfilter/avfilter.h
3293

    
3294
cat > $TMPH <<EOF
3295
/* Automatically generated by configure - do not modify! */
3296
#ifndef LIBAV_CONFIG_H
3297
#define LIBAV_CONFIG_H
3298
#define LIBAV_CONFIGURATION "$(c_escape $LIBAV_CONFIGURATION)"
3299
#define LIBAV_LICENSE "$(c_escape $license)"
3300
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3301
#define CC_TYPE "$cc_type"
3302
#define CC_VERSION $cc_version
3303
#define restrict $_restrict
3304
#define EXTERN_PREFIX "${extern_prefix}"
3305
#define EXTERN_ASM ${extern_prefix}
3306
#define SLIBSUF "$SLIBSUF"
3307
EOF
3308

    
3309
test -n "$malloc_prefix" &&
3310
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3311

    
3312
if enabled small || disabled optimizations; then
3313
    echo "#undef  av_always_inline"  >> $TMPH
3314
    if enabled small; then
3315
        echo "#define av_always_inline inline"  >> $TMPH
3316
    else
3317
        echo "#define av_always_inline av_unused"  >> $TMPH
3318
    fi
3319
fi
3320

    
3321
if enabled yasm; then
3322
    append config_files $TMPASM
3323
    printf '' >$TMPASM
3324
fi
3325

    
3326
print_config ARCH_   "$config_files" $ARCH_LIST
3327
print_config HAVE_   "$config_files" $HAVE_LIST
3328
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3329
                                     $CONFIG_EXTRA      \
3330
                                     $DECODER_LIST      \
3331
                                     $ENCODER_LIST      \
3332
                                     $HWACCEL_LIST      \
3333
                                     $PARSER_LIST       \
3334
                                     $BSF_LIST          \
3335
                                     $DEMUXER_LIST      \
3336
                                     $MUXER_LIST        \
3337
                                     $FILTER_LIST       \
3338
                                     $PROTOCOL_LIST     \
3339
                                     $INDEV_LIST        \
3340
                                     $OUTDEV_LIST       \
3341

    
3342
cat >>config.mak <<EOF
3343
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3344
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3345
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3346
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3347
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3348
EOF
3349

    
3350
echo "#endif /* LIBAV_CONFIG_H */" >> $TMPH
3351
echo "endif # LIBAV_CONFIG_MAK" >> config.mak
3352

    
3353
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3354
cp_if_changed $TMPH config.h
3355
touch .config
3356

    
3357
enabled yasm && cp_if_changed $TMPASM config.asm
3358

    
3359
cat > $TMPH <<EOF
3360
/* Generated by ffconf */
3361
#ifndef AVUTIL_AVCONFIG_H
3362
#define AVUTIL_AVCONFIG_H
3363
EOF
3364

    
3365
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3366

    
3367
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3368

    
3369
cp_if_changed $TMPH libavutil/avconfig.h
3370

    
3371
test -n "$WARNINGS" && printf "\n$WARNINGS"
3372

    
3373
# build pkg-config files
3374

    
3375
pkgconfig_generate(){
3376
name=$1
3377
shortname=${name#lib}${build_suffix}
3378
comment=$2
3379
version=$3
3380
libs=$4
3381
requires=$5
3382
enabled ${name#lib} || return 0
3383
cat <<EOF > $name/$name.pc
3384
prefix=$prefix
3385
exec_prefix=\${prefix}
3386
libdir=$libdir
3387
includedir=$incdir
3388

    
3389
Name: $name
3390
Description: $comment
3391
Version: $version
3392
Requires: $(enabled shared || echo $requires)
3393
Requires.private: $(enabled shared && echo $requires)
3394
Conflicts:
3395
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3396
Libs.private: $(enabled shared && echo $libs)
3397
Cflags: -I\${includedir}
3398
EOF
3399
cat <<EOF > $name/$name-uninstalled.pc
3400
prefix=
3401
exec_prefix=
3402
libdir=\${pcfiledir}
3403
includedir=${source_path}
3404

    
3405
Name: $name
3406
Description: $comment
3407
Version: $version
3408
Requires: $requires
3409
Conflicts:
3410
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3411
Cflags: -I\${includedir}
3412
EOF
3413
}
3414

    
3415
pkgconfig_generate libavutil "Libav utility library" "$LIBAVUTIL_VERSION"
3416
pkgconfig_generate libavcodec "Libav codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3417
pkgconfig_generate libavformat "Libav container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3418
pkgconfig_generate libavdevice "Libav device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3419
pkgconfig_generate libavfilter "Libav video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3420
pkgconfig_generate libpostproc "Libav post processing library" "$LIBPOSTPROC_VERSION"
3421
pkgconfig_generate libswscale "Libav image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"