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

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

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

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

    
74
Configuration options:
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  --disable-static         do not build static libraries [no]
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  --enable-shared          build shared libraries [no]
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  --enable-gpl             allow use of GPL code, the resulting libs
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                           and binaries will be under GPL [no]
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  --enable-version3        upgrade (L)GPL to version 3 [no]
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  --enable-nonfree         allow use of nonfree code, the resulting libs
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                           and binaries will be unredistributable [no]
82
  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
85
  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
87
  --disable-avdevice       disable libavdevice build
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  --disable-avcodec        disable libavcodec build
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  --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]
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  --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
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  --disable-everything     disable all components listed below
117
  --disable-encoder=NAME   disable encoder NAME
118
  --enable-encoder=NAME    enable encoder NAME
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  --disable-encoders       disable all encoders
120
  --disable-decoder=NAME   disable decoder NAME
121
  --enable-decoder=NAME    enable decoder NAME
122
  --disable-decoders       disable all decoders
123
  --disable-hwaccel=NAME   disable hwaccel NAME
124
  --enable-hwaccel=NAME    enable hwaccel NAME
125
  --disable-hwaccels       disable all hwaccels
126
  --disable-muxer=NAME     disable muxer NAME
127
  --enable-muxer=NAME      enable muxer NAME
128
  --disable-muxers         disable all muxers
129
  --disable-demuxer=NAME   disable demuxer NAME
130
  --enable-demuxer=NAME    enable demuxer NAME
131
  --disable-demuxers       disable all demuxers
132
  --enable-parser=NAME     enable parser NAME
133
  --disable-parser=NAME    disable parser NAME
134
  --disable-parsers        disable all parsers
135
  --enable-bsf=NAME        enable bitstream filter NAME
136
  --disable-bsf=NAME       disable bitstream filter NAME
137
  --disable-bsfs           disable all bitstream filters
138
  --enable-protocol=NAME   enable protocol NAME
139
  --disable-protocol=NAME  disable protocol NAME
140
  --disable-protocols      disable all protocols
141
  --disable-indev=NAME     disable input device NAME
142
  --disable-outdev=NAME    disable output device NAME
143
  --disable-indevs         disable input devices
144
  --disable-outdevs        disable output devices
145
  --disable-devices        disable all devices
146
  --enable-filter=NAME     enable filter NAME
147
  --disable-filter=NAME    disable filter NAME
148
  --disable-filters        disable all filters
149
  --list-decoders          show all available decoders
150
  --list-encoders          show all available encoders
151
  --list-hwaccels          show all available hardware accelerators
152
  --list-muxers            show all available muxers
153
  --list-demuxers          show all available demuxers
154
  --list-parsers           show all available parsers
155
  --list-protocols         show all available protocols
156
  --list-bsfs              show all available bitstream filters
157
  --list-indevs            show all available input devices
158
  --list-outdevs           show all available output devices
159
  --list-filters           show all available filters
160

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

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

    
241
Developer options (useful when working on FFmpeg itself):
242
  --disable-debug          disable debugging symbols
243
  --enable-debug=LEVEL     set the debug level [$debuglevel]
244
  --disable-optimizations  disable compiler optimizations
245
  --enable-extra-warnings  enable more compiler warnings
246
  --disable-stripping      disable stripping of executables and shared libraries
247
  --samples=PATH           location of test samples for FATE, if not set use
248
                           \$FATE_SAMPLES at make invocation time.
249

    
250
NOTE: Object files are built at the place where configure is launched.
251
EOF
252
  exit 0
253
}
254

    
255
quotes='""'
256

    
257
log(){
258
    echo "$@" >> $logfile
259
}
260

    
261
log_file(){
262
    log BEGIN $1
263
    pr -n -t $1 >> $logfile
264
    log END $1
265
}
266

    
267
echolog(){
268
    log "$@"
269
    echo "$@"
270
}
271

    
272
warn(){
273
    log "WARNING: $*"
274
    WARNINGS="${WARNINGS}WARNING: $*\n"
275
}
276

    
277
die(){
278
    echolog "$@"
279
    cat <<EOF
280

    
281
If you think configure made a mistake, make sure you are using the latest
282
version from Git.  If the latest version fails, report the problem to the
283
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
284
EOF
285
    if disabled logging; then
286
        cat <<EOF
287
Rerun configure with logging enabled (do not use --disable-logging), and
288
include the log this produces with your report.
289
EOF
290
    else
291
cat <<EOF
292
Include the log file "$logfile" produced by configure as this will help
293
solving the problem.
294
EOF
295
    fi
296
    exit 1
297
}
298

    
299
# Avoid locale weirdness, besides we really just want to translate ASCII.
300
toupper(){
301
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
302
}
303

    
304
tolower(){
305
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
306
}
307

    
308
c_escape(){
309
    echo "$*" | sed 's/["\\]/\\\0/g'
310
}
311

    
312
sh_quote(){
313
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
314
    test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
315
    echo "$v"
316
}
317

    
318
cleanws(){
319
    echo "$@" | sed 's/^ *//;s/  */ /g;s/ *$//'
320
}
321

    
322
filter(){
323
    pat=$1
324
    shift
325
    for v; do
326
        eval "case $v in $pat) echo $v ;; esac"
327
    done
328
}
329

    
330
filter_out(){
331
    pat=$1
332
    shift
333
    for v; do
334
        eval "case $v in $pat) ;; *) echo $v ;; esac"
335
    done
336
}
337

    
338
map(){
339
    m=$1
340
    shift
341
    for v; do eval $m; done
342
}
343

    
344
set_all(){
345
    value=$1
346
    shift
347
    for var in $*; do
348
        eval $var=$value
349
    done
350
}
351

    
352
set_weak(){
353
    value=$1
354
    shift
355
    for var; do
356
        eval : \${$var:=$value}
357
    done
358
}
359

    
360
set_safe(){
361
    var=$1
362
    shift
363
    eval $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')='$*'
364
}
365

    
366
get_safe(){
367
    eval echo \$$(echo "$1" | sed 's/[^A-Za-z0-9_]/_/g')
368
}
369

    
370
pushvar(){
371
    for var in $*; do
372
        eval level=\${${var}_level:=0}
373
        eval ${var}_${level}="\$$var"
374
        eval ${var}_level=$(($level+1))
375
    done
376
}
377

    
378
popvar(){
379
    for var in $*; do
380
        eval level=\${${var}_level:-0}
381
        test $level = 0 && continue
382
        eval level=$(($level-1))
383
        eval $var="\${${var}_${level}}"
384
        eval ${var}_level=$level
385
        eval unset ${var}_${level}
386
    done
387
}
388

    
389
enable(){
390
    set_all yes $*
391
}
392

    
393
disable(){
394
    set_all no $*
395
}
396

    
397
enable_weak(){
398
    set_weak yes $*
399
}
400

    
401
disable_weak(){
402
    set_weak no $*
403
}
404

    
405
enable_safe(){
406
    for var; do
407
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
408
    done
409
}
410

    
411
disable_safe(){
412
    for var; do
413
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
414
    done
415
}
416

    
417
do_enable_deep(){
418
    for var; do
419
        enabled $var && continue
420
        eval sel="\$${var}_select"
421
        eval sgs="\$${var}_suggest"
422
        pushvar var sgs
423
        enable_deep $sel
424
        popvar sgs
425
        enable_deep_weak $sgs
426
        popvar var
427
    done
428
}
429

    
430
enable_deep(){
431
    do_enable_deep $*
432
    enable $*
433
}
434

    
435
enable_deep_weak(){
436
    do_enable_deep $*
437
    enable_weak $*
438
}
439

    
440
enabled(){
441
    test "${1#!}" = "$1" && op== || op=!=
442
    eval test "x\$${1#!}" $op "xyes"
443
}
444

    
445
disabled(){
446
    test "${1#!}" = "$1" && op== || op=!=
447
    eval test "x\$${1#!}" $op "xno"
448
}
449

    
450
enabled_all(){
451
    for opt; do
452
        enabled $opt || return 1
453
    done
454
}
455

    
456
disabled_all(){
457
    for opt; do
458
        disabled $opt || return 1
459
    done
460
}
461

    
462
enabled_any(){
463
    for opt; do
464
        enabled $opt && return 0
465
    done
466
}
467

    
468
disabled_any(){
469
    for opt; do
470
        disabled $opt && return 0
471
    done
472
    return 1
473
}
474

    
475
set_default(){
476
    for opt; do
477
        eval : \${$opt:=\$${opt}_default}
478
    done
479
}
480

    
481
is_in(){
482
    value=$1
483
    shift
484
    for var in $*; do
485
        [ $var = $value ] && return 0
486
    done
487
    return 1
488
}
489

    
490
check_deps(){
491
    for cfg; do
492
        cfg="${cfg#!}"
493
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
494
        disabled ${cfg}_checking && continue
495
        enable ${cfg}_checking
496

    
497
        eval dep_all="\$${cfg}_deps"
498
        eval dep_any="\$${cfg}_deps_any"
499
        eval dep_sel="\$${cfg}_select"
500
        eval dep_sgs="\$${cfg}_suggest"
501
        eval dep_ifa="\$${cfg}_if"
502
        eval dep_ifn="\$${cfg}_if_any"
503

    
504
        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
505
        check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
506
        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
507

    
508
        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
509
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
510
        enabled_all  $dep_all || disable $cfg
511
        enabled_any  $dep_any || disable $cfg
512
        disabled_any $dep_sel && disable $cfg
513

    
514
        if enabled $cfg; then
515
            eval dep_extralibs="\$${cfg}_extralibs"
516
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
517
            enable_deep $dep_sel
518
            enable_deep_weak $dep_sgs
519
        fi
520

    
521
        disable ${cfg}_checking
522
    done
523
}
524

    
525
print_config_h(){
526
    enabled $1 && v=1 || v=0
527
    echo "#define $2 $v"
528
}
529

    
530
print_config_mak(){
531
    enabled $1 && v= || v=!
532
    echo "$v$2=yes"
533
}
534

    
535
print_config_asm(){
536
    enabled $1 && echo "%define $2"
537
}
538

    
539
print_config(){
540
    pfx=$1
541
    files=$2
542
    shift 2
543
    for cfg; do
544
        ucname="$(toupper $cfg)"
545
        for f in $files; do
546
            "print_config_${f##*.}" $cfg ${pfx}${ucname} >>$f
547
        done
548
    done
549
}
550

    
551
print_enabled(){
552
    test "$1" = -n && end=" " && shift || end="\n"
553
    suf=$1
554
    shift
555
    for v; do
556
        enabled $v && printf "%s$end" ${v%$suf};
557
    done
558
}
559

    
560
append(){
561
    var=$1
562
    shift
563
    eval "$var=\"\$$var $*\""
564
}
565

    
566
prepend(){
567
    var=$1
568
    shift
569
    eval "$var=\"$* \$$var\""
570
}
571

    
572
add_cppflags(){
573
    append CPPFLAGS $($filter_cppflags "$@")
574
}
575

    
576
add_cflags(){
577
    append CFLAGS $($filter_cflags "$@")
578
}
579

    
580
add_asflags(){
581
    append ASFLAGS $($filter_asflags "$@")
582
}
583

    
584
add_ldflags(){
585
    append LDFLAGS "$@"
586
}
587

    
588
add_extralibs(){
589
    prepend extralibs "$@"
590
}
591

    
592
check_cmd(){
593
    log "$@"
594
    "$@" >> $logfile 2>&1
595
}
596

    
597
check_cc(){
598
    log check_cc "$@"
599
    cat > $TMPC
600
    log_file $TMPC
601
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
602
}
603

    
604
check_cpp(){
605
    log check_cpp "$@"
606
    cat > $TMPC
607
    log_file $TMPC
608
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
609
}
610

    
611
check_as(){
612
    log check_as "$@"
613
    cat > $TMPC
614
    log_file $TMPC
615
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
616
}
617

    
618
check_asm(){
619
    log check_asm "$@"
620
    name="$1"
621
    code="$2"
622
    shift 2
623
    disable $name
624
    check_as "$@" <<EOF && enable $name
625
void foo(void){ __asm__ volatile($code); }
626
EOF
627
}
628

    
629
check_yasm(){
630
    log check_yasm "$@"
631
    echo "$1" > $TMPS
632
    log_file $TMPS
633
    shift 1
634
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
635
}
636

    
637
check_ld(){
638
    log check_ld "$@"
639
    flags=''
640
    libs=''
641
    for f; do
642
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
643
    done
644
    check_cc $($filter_cflags $flags) || return
645
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $libs $extralibs
646
}
647

    
648
check_cppflags(){
649
    log check_cppflags "$@"
650
    set -- $($filter_cppflags "$@")
651
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
652
int x;
653
EOF
654
}
655

    
656
check_cflags(){
657
    log check_cflags "$@"
658
    set -- $($filter_cflags "$@")
659
    check_cc "$@" <<EOF && append CFLAGS "$@"
660
int x;
661
EOF
662
}
663

    
664
test_ldflags(){
665
    log test_ldflags "$@"
666
    check_ld "$@" <<EOF
667
int main(void){ return 0; }
668
EOF
669
}
670

    
671
check_ldflags(){
672
    log check_ldflags "$@"
673
    test_ldflags "$@" && add_ldflags "$@"
674
}
675

    
676
check_header(){
677
    log check_header "$@"
678
    header=$1
679
    shift
680
    disable_safe $header
681
    check_cpp "$@" <<EOF && enable_safe $header
682
#include <$header>
683
int x;
684
EOF
685
}
686

    
687
check_func(){
688
    log check_func "$@"
689
    func=$1
690
    shift
691
    disable $func
692
    check_ld "$@" <<EOF && enable $func
693
extern int $func();
694
int main(void){ $func(); }
695
EOF
696
}
697

    
698
check_mathfunc(){
699
    log check_mathfunc "$@"
700
    func=$1
701
    shift
702
    disable $func
703
    check_ld "$@" <<EOF && enable $func
704
#include <math.h>
705
float foo(float f) { return $func(f); }
706
int main(void){ return 0; }
707
EOF
708
}
709

    
710
check_func_headers(){
711
    log check_func_headers "$@"
712
    headers=$1
713
    funcs=$2
714
    shift 2
715
    {
716
        for hdr in $headers; do
717
            echo "#include <$hdr>"
718
        done
719
        for func in $funcs; do
720
            echo "long check_$func(void) { return (long) $func; }"
721
        done
722
        echo "int main(void) { return 0; }"
723
    } | check_ld "$@" && enable $funcs && enable_safe $headers
724
}
725

    
726
check_cpp_condition(){
727
    log check_cpp_condition "$@"
728
    header=$1
729
    condition=$2
730
    shift 2
731
    check_cpp $($filter_cppflags "$@") <<EOF
732
#include <$header>
733
#if !($condition)
734
#error "unsatisfied condition: $condition"
735
#endif
736
EOF
737
}
738

    
739
check_lib(){
740
    log check_lib "$@"
741
    header="$1"
742
    func="$2"
743
    shift 2
744
    check_header $header && check_func $func "$@" && add_extralibs "$@"
745
}
746

    
747
check_lib2(){
748
    log check_lib2 "$@"
749
    headers="$1"
750
    funcs="$2"
751
    shift 2
752
    check_func_headers "$headers" "$funcs" "$@" && add_extralibs "$@"
753
}
754

    
755
check_pkg_config(){
756
    log check_pkg_config "$@"
757
    pkg="$1"
758
    headers="$2"
759
    funcs="$3"
760
    shift 3
761
    $pkg_config --exists $pkg || return
762
    pkg_cflags=$($pkg_config --cflags $pkg)
763
    pkg_libs=$($pkg_config --libs $pkg)
764
    check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
765
        set_safe ${pkg}_cflags $pkg_cflags   &&
766
        set_safe ${pkg}_libs   $pkg_libs
767
}
768

    
769
check_exec(){
770
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
771
}
772

    
773
check_exec_crash(){
774
    code=$(cat)
775

    
776
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
777
    # are safe but may not be available everywhere.  Thus we use
778
    # raise(SIGTERM) instead.  The check is run in a subshell so we
779
    # can redirect the "Terminated" message from the shell.  SIGBUS
780
    # is not defined by standard C so it is used conditionally.
781

    
782
    (check_exec "$@") >> $logfile 2>&1 <<EOF
783
#include <signal.h>
784
static void sighandler(int sig){
785
    raise(SIGTERM);
786
}
787
int main(void){
788
    signal(SIGILL, sighandler);
789
    signal(SIGFPE, sighandler);
790
    signal(SIGSEGV, sighandler);
791
#ifdef SIGBUS
792
    signal(SIGBUS, sighandler);
793
#endif
794
    { $code }
795
}
796
EOF
797
}
798

    
799
check_type(){
800
    log check_type "$@"
801
    headers=$1
802
    type=$2
803
    shift 2
804
    disable_safe "$type"
805
    incs=""
806
    for hdr in $headers; do
807
        incs="$incs
808
#include <$hdr>"
809
    done
810
    check_cc "$@" <<EOF && enable_safe "$type"
811
$incs
812
$type v;
813
EOF
814
}
815

    
816
check_struct(){
817
    log check_type "$@"
818
    headers=$1
819
    struct=$2
820
    member=$3
821
    shift 3
822
    disable_safe "${struct}_${member}"
823
    incs=""
824
    for hdr in $headers; do
825
        incs="$incs
826
#include <$hdr>"
827
    done
828
    check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
829
$incs
830
const void *p = &(($struct *)0)->$member;
831
EOF
832
}
833

    
834
require(){
835
    name="$1"
836
    header="$2"
837
    func="$3"
838
    shift 3
839
    check_lib $header $func "$@" || die "ERROR: $name not found"
840
}
841

    
842
require2(){
843
    name="$1"
844
    headers="$2"
845
    func="$3"
846
    shift 3
847
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
848
}
849

    
850
require_pkg_config(){
851
    pkg="$1"
852
    check_pkg_config "$@" || die "ERROR: $pkg not found"
853
    add_cflags    $(get_safe ${pkg}_cflags)
854
    add_extralibs $(get_safe ${pkg}_libs)
855
}
856

    
857
check_host_cc(){
858
    log check_host_cc "$@"
859
    cat > $TMPC
860
    log_file $TMPC
861
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
862
}
863

    
864
check_host_cflags(){
865
    log check_host_cflags "$@"
866
    check_host_cc "$@" <<EOF && append host_cflags "$@"
867
int x;
868
EOF
869
}
870

    
871
apply(){
872
    file=$1
873
    shift
874
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
875
}
876

    
877
cp_if_changed(){
878
    cmp -s "$1" "$2" &&
879
        echo "$2 is unchanged" ||
880
        cp -f "$1" "$2"
881
}
882

    
883
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
884
# system-dependent things.
885

    
886
COMPONENT_LIST="
887
    bsfs
888
    decoders
889
    demuxers
890
    encoders
891
    filters
892
    hwaccels
893
    indevs
894
    muxers
895
    outdevs
896
    parsers
897
    protocols
898
"
899

    
900
CONFIG_LIST="
901
    $COMPONENT_LIST
902
    aandct
903
    ac3dsp
904
    audio_float
905
    avcodec
906
    avdevice
907
    avfilter
908
    avformat
909
    avisynth
910
    bzlib
911
    crystalhd
912
    dct
913
    doc
914
    dwt
915
    dxva2
916
    fastdiv
917
    ffmpeg
918
    ffplay
919
    ffprobe
920
    ffserver
921
    fft
922
    frei0r
923
    golomb
924
    gpl
925
    gray
926
    h264dsp
927
    h264pred
928
    hardcoded_tables
929
    huffman
930
    libdc1394
931
    libdirac
932
    libfaac
933
    libfreetype
934
    libgsm
935
    libmp3lame
936
    libnut
937
    libopencore_amrnb
938
    libopencore_amrwb
939
    libopencv
940
    libopenjpeg
941
    librtmp
942
    libschroedinger
943
    libspeex
944
    libtheora
945
    libvorbis
946
    libvpx
947
    libx264
948
    libxavs
949
    libxvid
950
    lpc
951
    lsp
952
    mdct
953
    memalign_hack
954
    mlib
955
    mpegaudio_hp
956
    network
957
    nonfree
958
    pic
959
    postproc
960
    rdft
961
    rtpdec
962
    runtime_cpudetect
963
    shared
964
    sinewin
965
    small
966
    sram
967
    static
968
    swscale
969
    swscale_alpha
970
    vaapi
971
    vdpau
972
    version3
973
    x11grab
974
    zlib
975
"
976

    
977
THREADS_LIST='
978
    pthreads
979
    w32threads
980
'
981

    
982
ARCH_LIST='
983
    alpha
984
    arm
985
    avr32
986
    avr32_ap
987
    avr32_uc
988
    bfin
989
    ia64
990
    m68k
991
    mips
992
    mips64
993
    parisc
994
    ppc
995
    ppc64
996
    s390
997
    sh4
998
    sparc
999
    sparc64
1000
    tomi
1001
    x86
1002
    x86_32
1003
    x86_64
1004
'
1005

    
1006
ARCH_EXT_LIST='
1007
    altivec
1008
    amd3dnow
1009
    amd3dnowext
1010
    armv5te
1011
    armv6
1012
    armv6t2
1013
    armvfp
1014
    avx
1015
    iwmmxt
1016
    mmi
1017
    mmx
1018
    mmx2
1019
    neon
1020
    ppc4xx
1021
    sse
1022
    ssse3
1023
    vis
1024
'
1025

    
1026
HAVE_LIST_PUB='
1027
    bigendian
1028
    fast_unaligned
1029
'
1030

    
1031
HAVE_LIST="
1032
    $ARCH_EXT_LIST
1033
    $HAVE_LIST_PUB
1034
    $THREADS_LIST
1035
    aligned_stack
1036
    alsa_asoundlib_h
1037
    altivec_h
1038
    arpa_inet_h
1039
    attribute_may_alias
1040
    attribute_packed
1041
    bswap
1042
    closesocket
1043
    cmov
1044
    dcbzl
1045
    dev_bktr_ioctl_bt848_h
1046
    dev_bktr_ioctl_meteor_h
1047
    dev_ic_bt8xx_h
1048
    dev_video_meteor_ioctl_meteor_h
1049
    dev_video_bktr_ioctl_bt848_h
1050
    dlfcn_h
1051
    dlopen
1052
    dos_paths
1053
    ebp_available
1054
    ebx_available
1055
    exp2
1056
    exp2f
1057
    fast_64bit
1058
    fast_clz
1059
    fast_cmov
1060
    fcntl
1061
    fork
1062
    getaddrinfo
1063
    gethrtime
1064
    GetProcessMemoryInfo
1065
    GetProcessTimes
1066
    getrusage
1067
    gnu_as
1068
    struct_rusage_ru_maxrss
1069
    ibm_asm
1070
    inet_aton
1071
    inline_asm
1072
    isatty
1073
    kbhit
1074
    ldbrx
1075
    libdc1394_1
1076
    libdc1394_2
1077
    llrint
1078
    llrintf
1079
    local_aligned_16
1080
    local_aligned_8
1081
    localtime_r
1082
    log2
1083
    log2f
1084
    loongson
1085
    lrint
1086
    lrintf
1087
    lzo1x_999_compress
1088
    machine_ioctl_bt848_h
1089
    machine_ioctl_meteor_h
1090
    malloc_h
1091
    MapViewOfFile
1092
    memalign
1093
    mkstemp
1094
    mmap
1095
    pld
1096
    posix_memalign
1097
    round
1098
    roundf
1099
    sdl
1100
    sdl_video_size
1101
    setmode
1102
    sndio_h
1103
    socklen_t
1104
    soundcard_h
1105
    poll_h
1106
    setrlimit
1107
    strerror_r
1108
    strtok_r
1109
    struct_addrinfo
1110
    struct_ipv6_mreq
1111
    struct_sockaddr_in6
1112
    struct_sockaddr_sa_len
1113
    struct_sockaddr_storage
1114
    symver
1115
    symver_gnu_asm
1116
    symver_asm_label
1117
    sys_mman_h
1118
    sys_resource_h
1119
    sys_select_h
1120
    sys_soundcard_h
1121
    sys_videoio_h
1122
    ten_operands
1123
    termios_h
1124
    threads
1125
    truncf
1126
    vfp_args
1127
    VirtualAlloc
1128
    winsock2_h
1129
    xform_asm
1130
    xmm_clobbers
1131
    yasm
1132
"
1133

    
1134
# options emitted with CONFIG_ prefix but not available on command line
1135
CONFIG_EXTRA="
1136
    avutil
1137
    gplv3
1138
    lgplv3
1139
"
1140

    
1141
CMDLINE_SELECT="
1142
    $ARCH_EXT_LIST
1143
    $CONFIG_LIST
1144
    $THREADS_LIST
1145
    asm
1146
    cross_compile
1147
    debug
1148
    extra_warnings
1149
    logging
1150
    optimizations
1151
    stripping
1152
    symver
1153
    yasm
1154
"
1155

    
1156
PATHS_LIST='
1157
    bindir
1158
    datadir
1159
    incdir
1160
    libdir
1161
    mandir
1162
    prefix
1163
    shlibdir
1164
'
1165

    
1166
CMDLINE_SET="
1167
    $PATHS_LIST
1168
    ar
1169
    arch
1170
    as
1171
    build_suffix
1172
    cc
1173
    cpu
1174
    cross_prefix
1175
    dep_cc
1176
    extra_version
1177
    host_cc
1178
    host_cflags
1179
    host_ldflags
1180
    host_libs
1181
    host_os
1182
    ld
1183
    logfile
1184
    malloc_prefix
1185
    nm
1186
    pkg_config
1187
    samples
1188
    source_path
1189
    strip
1190
    sysinclude
1191
    sysroot
1192
    target_exec
1193
    target_os
1194
    target_path
1195
"
1196

    
1197
CMDLINE_APPEND="
1198
    extra_cflags
1199
"
1200

    
1201
# code dependency declarations
1202

    
1203
# architecture extensions
1204

    
1205
armv5te_deps="arm"
1206
armv6_deps="arm"
1207
armv6t2_deps="arm"
1208
armvfp_deps="arm"
1209
iwmmxt_deps="arm"
1210
neon_deps="arm"
1211

    
1212
mmi_deps="mips"
1213

    
1214
altivec_deps="ppc"
1215
ppc4xx_deps="ppc"
1216

    
1217
vis_deps="sparc"
1218

    
1219
x86_64_suggest="cmov fast_cmov"
1220
amd3dnow_deps="mmx"
1221
amd3dnowext_deps="amd3dnow"
1222
mmx_deps="x86"
1223
mmx2_deps="mmx"
1224
sse_deps="mmx"
1225
ssse3_deps="sse"
1226
avx_deps="ssse3"
1227

    
1228
aligned_stack_if_any="ppc x86"
1229
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1230
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1231
fast_unaligned_if_any="armv6 ppc x86"
1232

    
1233
need_memalign="altivec neon sse"
1234
inline_asm_deps="!tms470"
1235

    
1236
symver_if_any="symver_asm_label symver_gnu_asm"
1237

    
1238
# subsystems
1239
dct_select="rdft"
1240
mdct_select="fft"
1241
rdft_select="fft"
1242

    
1243
# decoders / encoders / hardware accelerators
1244
aac_decoder_select="mdct rdft sinewin"
1245
aac_encoder_select="mdct sinewin"
1246
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1247
ac3_decoder_select="mdct ac3dsp ac3_parser"
1248
ac3_encoder_select="mdct ac3dsp"
1249
ac3_fixed_encoder_select="ac3dsp"
1250
alac_encoder_select="lpc"
1251
amrnb_decoder_select="lsp"
1252
amrwb_decoder_select="lsp"
1253
atrac1_decoder_select="mdct sinewin"
1254
atrac3_decoder_select="mdct"
1255
binkaudio_dct_decoder_select="mdct rdft dct"
1256
binkaudio_rdft_decoder_select="mdct rdft"
1257
cavs_decoder_select="golomb"
1258
cook_decoder_select="mdct sinewin"
1259
cscd_decoder_suggest="zlib"
1260
dca_decoder_select="mdct"
1261
dnxhd_encoder_select="aandct"
1262
dxa_decoder_select="zlib"
1263
eac3_decoder_select="ac3_decoder"
1264
eamad_decoder_select="aandct"
1265
eatgq_decoder_select="aandct"
1266
eatqi_decoder_select="aandct"
1267
ffv1_decoder_select="golomb"
1268
flac_decoder_select="golomb"
1269
flac_encoder_select="golomb lpc"
1270
flashsv_decoder_select="zlib"
1271
flashsv_encoder_select="zlib"
1272
flv_decoder_select="h263_decoder"
1273
flv_encoder_select="h263_encoder"
1274
fraps_decoder_select="huffman"
1275
h261_encoder_select="aandct"
1276
h263_decoder_select="h263_parser"
1277
h263_encoder_select="aandct"
1278
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1279
h263i_decoder_select="h263_decoder"
1280
h263p_encoder_select="h263_encoder"
1281
h264_decoder_select="golomb h264dsp h264pred"
1282
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
1283
h264_dxva2_hwaccel_deps="dxva2api_h"
1284
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1285
h264_vaapi_hwaccel_select="vaapi"
1286
h264_vdpau_decoder_select="vdpau h264_decoder"
1287
imc_decoder_select="fft mdct"
1288
jpegls_decoder_select="golomb"
1289
jpegls_encoder_select="golomb"
1290
ljpeg_encoder_select="aandct"
1291
loco_decoder_select="golomb"
1292
mjpeg_encoder_select="aandct"
1293
mlp_decoder_select="mlp_parser"
1294
mp1float_decoder_select="dct"
1295
mp2float_decoder_select="dct"
1296
mp3adufloat_decoder_select="dct"
1297
mp3float_decoder_select="dct"
1298
mp3on4float_decoder_select="dct"
1299
mpeg1video_encoder_select="aandct"
1300
mpeg2video_encoder_select="aandct"
1301
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1302
mpeg4_encoder_select="h263_encoder"
1303
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1304
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1305
mpeg1_vdpau_hwaccel_select="vdpau mpeg1video_decoder"
1306
mpeg2_crystalhd_decoder_select="crystalhd"
1307
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1308
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1309
mpeg2_vdpau_hwaccel_select="vdpau mpeg2video_decoder"
1310
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1311
mpeg4_crystalhd_decoder_select="crystalhd"
1312
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1313
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1314
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1315
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1316
msmpeg4_crystalhd_decoder_select="crystalhd"
1317
msmpeg4v1_decoder_select="h263_decoder"
1318
msmpeg4v1_encoder_select="h263_encoder"
1319
msmpeg4v2_decoder_select="h263_decoder"
1320
msmpeg4v2_encoder_select="h263_encoder"
1321
msmpeg4v3_decoder_select="h263_decoder"
1322
msmpeg4v3_encoder_select="h263_encoder"
1323
nellymoser_decoder_select="mdct sinewin"
1324
nellymoser_encoder_select="mdct sinewin"
1325
png_decoder_select="zlib"
1326
png_encoder_select="zlib"
1327
qcelp_decoder_select="lsp"
1328
qdm2_decoder_select="mdct rdft"
1329
ra_144_encoder_select="lpc"
1330
rv10_decoder_select="h263_decoder"
1331
rv10_encoder_select="h263_encoder"
1332
rv20_decoder_select="h263_decoder"
1333
rv20_encoder_select="h263_encoder"
1334
rv30_decoder_select="golomb h264pred"
1335
rv40_decoder_select="golomb h264pred"
1336
shorten_decoder_select="golomb"
1337
sipr_decoder_select="lsp"
1338
snow_decoder_select="dwt"
1339
snow_encoder_select="aandct dwt"
1340
sonic_decoder_select="golomb"
1341
sonic_encoder_select="golomb"
1342
sonic_ls_encoder_select="golomb"
1343
svq1_encoder_select="aandct"
1344
svq3_decoder_select="golomb h264dsp h264pred"
1345
svq3_decoder_suggest="zlib"
1346
theora_decoder_select="vp3_decoder"
1347
tiff_decoder_suggest="zlib"
1348
tiff_encoder_suggest="zlib"
1349
truehd_decoder_select="mlp_decoder"
1350
tscc_decoder_select="zlib"
1351
twinvq_decoder_select="mdct lsp sinewin"
1352
vc1_decoder_select="h263_decoder"
1353
vc1_crystalhd_decoder_select="crystalhd"
1354
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1355
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1356
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1357
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1358
vorbis_decoder_select="mdct"
1359
vorbis_encoder_select="mdct"
1360
vp6_decoder_select="huffman"
1361
vp6a_decoder_select="vp6_decoder"
1362
vp6f_decoder_select="vp6_decoder"
1363
vp8_decoder_select="h264pred"
1364
wmapro_decoder_select="mdct sinewin"
1365
wmav1_decoder_select="mdct sinewin"
1366
wmav1_encoder_select="mdct sinewin"
1367
wmav2_decoder_select="mdct sinewin"
1368
wmav2_encoder_select="mdct sinewin"
1369
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1370
wmv1_decoder_select="h263_decoder"
1371
wmv1_encoder_select="h263_encoder"
1372
wmv2_decoder_select="h263_decoder"
1373
wmv2_encoder_select="h263_encoder"
1374
wmv3_decoder_select="vc1_decoder"
1375
wmv3_crystalhd_decoder_select="crystalhd"
1376
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1377
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1378
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1379
zlib_decoder_select="zlib"
1380
zlib_encoder_select="zlib"
1381
zmbv_decoder_select="zlib"
1382
zmbv_encoder_select="zlib"
1383

    
1384
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1385
vaapi_deps="va_va_h"
1386
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1387

    
1388
# parsers
1389
h264_parser_select="golomb h264dsp h264pred"
1390

    
1391
# external libraries
1392
libdirac_decoder_deps="libdirac !libschroedinger"
1393
libdirac_encoder_deps="libdirac"
1394
libfaac_encoder_deps="libfaac"
1395
libgsm_decoder_deps="libgsm"
1396
libgsm_encoder_deps="libgsm"
1397
libgsm_ms_decoder_deps="libgsm"
1398
libgsm_ms_encoder_deps="libgsm"
1399
libmp3lame_encoder_deps="libmp3lame"
1400
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1401
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1402
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1403
libopenjpeg_decoder_deps="libopenjpeg"
1404
libschroedinger_decoder_deps="libschroedinger"
1405
libschroedinger_encoder_deps="libschroedinger"
1406
libspeex_decoder_deps="libspeex"
1407
libtheora_encoder_deps="libtheora"
1408
libvorbis_encoder_deps="libvorbis"
1409
libvpx_decoder_deps="libvpx"
1410
libvpx_encoder_deps="libvpx"
1411
libx264_encoder_deps="libx264"
1412
libxavs_encoder_deps="libxavs"
1413
libxvid_encoder_deps="libxvid"
1414

    
1415
# demuxers / muxers
1416
ac3_demuxer_select="ac3_parser"
1417
asf_stream_muxer_select="asf_muxer"
1418
avisynth_demuxer_deps="avisynth"
1419
dirac_demuxer_select="dirac_parser"
1420
eac3_demuxer_select="ac3_parser"
1421
flac_demuxer_select="flac_parser"
1422
ipod_muxer_select="mov_muxer"
1423
libnut_demuxer_deps="libnut"
1424
libnut_muxer_deps="libnut"
1425
matroska_audio_muxer_select="matroska_muxer"
1426
matroska_demuxer_suggest="zlib bzlib"
1427
mov_demuxer_suggest="zlib"
1428
mp3_demuxer_select="mpegaudio_parser"
1429
mp4_muxer_select="mov_muxer"
1430
mpegtsraw_demuxer_select="mpegts_demuxer"
1431
mxf_d10_muxer_select="mxf_muxer"
1432
ogg_demuxer_select="golomb"
1433
psp_muxer_select="mov_muxer"
1434
rtp_demuxer_select="sdp_demuxer"
1435
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1436
rtsp_demuxer_select="http_protocol rtpdec"
1437
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1438
sap_demuxer_select="sdp_demuxer"
1439
sap_muxer_select="rtp_muxer rtp_protocol"
1440
sdp_demuxer_select="rtpdec"
1441
spdif_muxer_select="aac_parser"
1442
tg2_muxer_select="mov_muxer"
1443
tgp_muxer_select="mov_muxer"
1444
w64_demuxer_deps="wav_demuxer"
1445

    
1446
# indevs / outdevs
1447
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1448
alsa_outdev_deps="alsa_asoundlib_h"
1449
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1450
dv1394_indev_deps="dv1394 dv_demuxer"
1451
fbdev_indev_deps="linux_fb_h"
1452
jack_indev_deps="jack_jack_h"
1453
libdc1394_indev_deps="libdc1394"
1454
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1455
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1456
sndio_indev_deps="sndio_h"
1457
sndio_outdev_deps="sndio_h"
1458
v4l_indev_deps="linux_videodev_h"
1459
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1460
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1461
vfwcap_indev_extralibs="-lavicap32"
1462
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1463
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1464

    
1465
# protocols
1466
gopher_protocol_deps="network"
1467
http_protocol_deps="network"
1468
http_protocol_select="tcp_protocol"
1469
mmsh_protocol_select="http_protocol"
1470
mmst_protocol_deps="network"
1471
rtmp_protocol_select="tcp_protocol"
1472
rtp_protocol_select="udp_protocol"
1473
tcp_protocol_deps="network"
1474
udp_protocol_deps="network"
1475

    
1476
# filters
1477
blackframe_filter_deps="gpl"
1478
cropdetect_filter_deps="gpl"
1479
drawtext_filter_deps="libfreetype"
1480
frei0r_filter_deps="frei0r dlopen strtok_r"
1481
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1482
hqdn3d_filter_deps="gpl"
1483
mp_filter_deps="gpl"
1484
ocv_filter_deps="libopencv"
1485
scale_filter_deps="swscale"
1486
yadif_filter_deps="gpl"
1487

    
1488
# libraries
1489
avdevice_deps="avcodec avformat"
1490
avformat_deps="avcodec"
1491

    
1492
# programs
1493
ffmpeg_deps="avcodec avformat swscale"
1494
ffmpeg_select="buffer_filter"
1495
ffplay_deps="avcodec avformat swscale sdl"
1496
ffplay_select="rdft"
1497
ffprobe_deps="avcodec avformat"
1498
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1499
ffserver_extralibs='$ldl'
1500

    
1501
doc_deps="texi2html"
1502

    
1503
# tests
1504

    
1505
test_deps(){
1506
    suf1=$1
1507
    suf2=$2
1508
    shift 2
1509
    for v; do
1510
        dep=${v%=*}
1511
        tests=${v#*=}
1512
        for name in ${tests}; do
1513
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1514
        done
1515
    done
1516
}
1517

    
1518
set_ne_test_deps(){
1519
    eval ${1}_be_test_deps="bigendian"
1520
    eval ${1}_le_test_deps="!bigendian"
1521
}
1522

    
1523
test_deps _encoder _decoder                                             \
1524
    adpcm_g726=g726                                                     \
1525
    adpcm_ima_qt                                                        \
1526
    adpcm_ima_wav                                                       \
1527
    adpcm_ms                                                            \
1528
    adpcm_swf                                                           \
1529
    adpcm_yamaha=adpcm_yam                                              \
1530
    alac                                                                \
1531
    asv1                                                                \
1532
    asv2                                                                \
1533
    bmp                                                                 \
1534
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1535
    dvvideo="dv dv50"                                                   \
1536
    ffv1                                                                \
1537
    flac                                                                \
1538
    flashsv                                                             \
1539
    flv                                                                 \
1540
    gif                                                                 \
1541
    h261                                                                \
1542
    h263="h263 h263p"                                                   \
1543
    huffyuv                                                             \
1544
    jpegls                                                              \
1545
    mjpeg="jpg mjpeg ljpeg"                                             \
1546
    mp2                                                                 \
1547
    mpeg1video="mpeg mpeg1b"                                            \
1548
    mpeg2video="mpeg2 mpeg2thread"                                      \
1549
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1550
    msmpeg4v3=msmpeg4                                                   \
1551
    msmpeg4v2                                                           \
1552
    pbm=pbmpipe                                                         \
1553
    pcx                                                                 \
1554
    pgm="pgm pgmpipe"                                                   \
1555
    png                                                                 \
1556
    ppm="ppm ppmpipe"                                                   \
1557
    rawvideo="rgb yuv"                                                  \
1558
    roq                                                                 \
1559
    rv10                                                                \
1560
    rv20                                                                \
1561
    sgi                                                                 \
1562
    snow="snow snowll"                                                  \
1563
    svq1                                                                \
1564
    targa=tga                                                           \
1565
    tiff                                                                \
1566
    wmav1                                                               \
1567
    wmav2                                                               \
1568
    wmv1                                                                \
1569
    wmv2                                                                \
1570

    
1571
test_deps _muxer _demuxer                                               \
1572
    aiff                                                                \
1573
    pcm_alaw=alaw                                                       \
1574
    asf                                                                 \
1575
    au                                                                  \
1576
    avi                                                                 \
1577
    dv=dv_fmt                                                           \
1578
    ffm                                                                 \
1579
    flv=flv_fmt                                                         \
1580
    gxf                                                                 \
1581
    matroska=mkv                                                        \
1582
    mmf                                                                 \
1583
    mov                                                                 \
1584
    pcm_mulaw=mulaw                                                     \
1585
    mxf                                                                 \
1586
    nut                                                                 \
1587
    ogg                                                                 \
1588
    rawvideo=pixfmt                                                     \
1589
    rm                                                                  \
1590
    swf                                                                 \
1591
    mpegts=ts                                                           \
1592
    voc                                                                 \
1593
    wav                                                                 \
1594
    yuv4mpegpipe=yuv4mpeg                                               \
1595

    
1596
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1597
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1598

    
1599
set_ne_test_deps pixdesc
1600
set_ne_test_deps pixfmts_copy
1601
set_ne_test_deps pixfmts_crop
1602
set_ne_test_deps pixfmts_hflip
1603
set_ne_test_deps pixfmts_null
1604
set_ne_test_deps pixfmts_pad
1605
set_ne_test_deps pixfmts_scale
1606
set_ne_test_deps pixfmts_vflip
1607

    
1608
# default parameters
1609

    
1610
logfile="config.log"
1611

    
1612
# installation paths
1613
prefix_default="/usr/local"
1614
bindir_default='${prefix}/bin'
1615
datadir_default='${prefix}/share/ffmpeg'
1616
incdir_default='${prefix}/include'
1617
libdir_default='${prefix}/lib'
1618
mandir_default='${prefix}/share/man'
1619
shlibdir_default="$libdir_default"
1620

    
1621
# toolchain
1622
ar_default="ar"
1623
cc_default="gcc"
1624
cc_version=\"unknown\"
1625
host_cc_default="gcc"
1626
ln_s="ln -sf"
1627
nm_default="nm"
1628
objformat="elf"
1629
pkg_config_default=pkg-config
1630
ranlib="ranlib"
1631
strip_default="strip"
1632
yasmexe="yasm"
1633
nogas=":"
1634

    
1635
nm_opts='-g'
1636

    
1637
# machine
1638
arch_default=$(uname -m)
1639
cpu="generic"
1640

    
1641
# OS
1642
target_os_default=$(tolower $(uname -s))
1643
host_os=$target_os_default
1644

    
1645
# configurable options
1646
enable avcodec
1647
enable avdevice
1648
enable avfilter
1649
enable avformat
1650
enable avutil
1651
enable asm
1652
enable debug
1653
enable doc
1654
enable fastdiv
1655
enable ffmpeg
1656
enable ffplay
1657
enable ffprobe
1658
enable ffserver
1659
enable mpegaudio_hp
1660
enable network
1661
enable optimizations
1662
enable protocols
1663
enable static
1664
enable stripping
1665
enable swscale
1666
enable swscale_alpha
1667

    
1668
# build settings
1669
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1670
FFSERVERLDFLAGS=-Wl,-E
1671
LIBPREF="lib"
1672
LIBSUF=".a"
1673
FULLNAME='$(NAME)$(BUILDSUF)'
1674
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1675
SLIBPREF="lib"
1676
SLIBSUF=".so"
1677
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1678
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1679
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1680
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1681

    
1682
CC_O='-o $@'
1683

    
1684
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1685
host_libs='-lm'
1686

    
1687
target_path='$(CURDIR)'
1688

    
1689
# since the object filename is not given with the -MM flag, the compiler
1690
# is only able to print the basename, and we must add the path ourselves
1691
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1692
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1693

    
1694
# find source path
1695
source_path="$(dirname "$0")"
1696
enable source_path_used
1697
if test -f configure; then
1698
    source_path="$(pwd)"
1699
    disable source_path_used
1700
else
1701
    source_path="$(cd "$source_path"; pwd)"
1702
    echo "$source_path" | grep -q '[[:blank:]]' &&
1703
        die "Out of tree builds are impossible with whitespace in source path."
1704
    test -e "$source_path/config.h" &&
1705
        die "Out of tree builds are impossible with config.h in source dir."
1706
fi
1707

    
1708
for v in "$@"; do
1709
    r=${v#*=}
1710
    l=${v%"$r"}
1711
    r=$(sh_quote "$r")
1712
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1713
done
1714

    
1715
find_things(){
1716
    thing=$1
1717
    pattern=$2
1718
    file=$source_path/$3
1719
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1720
}
1721

    
1722
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1723
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1724
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1725
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1726
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1727
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1728
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1729
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1730
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1731
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1732
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1733

    
1734
find_tests(){
1735
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1736
}
1737

    
1738
ACODEC_TESTS=$(find_tests acodec)
1739
VCODEC_TESTS=$(find_tests vsynth1)
1740
LAVF_TESTS=$(find_tests lavf)
1741
LAVFI_TESTS=$(find_tests lavfi)
1742
SEEK_TESTS=$(find_tests seek seek_)
1743

    
1744
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1745

    
1746
for n in $COMPONENT_LIST; do
1747
    v=$(toupper ${n%s})_LIST
1748
    eval enable \$$v
1749
    eval ${n}_if_any="\$$v"
1750
done
1751

    
1752
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1753

    
1754
die_unknown(){
1755
    echo "Unknown option \"$1\"."
1756
    echo "See $0 --help for available options."
1757
    exit 1
1758
}
1759

    
1760
show_list() {
1761
    suffix=_$1
1762
    shift
1763
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1764
    exit 0
1765
}
1766

    
1767
for opt do
1768
    optval="${opt#*=}"
1769
    case "$opt" in
1770
    --extra-ldflags=*) add_ldflags $optval
1771
    ;;
1772
    --extra-libs=*) add_extralibs $optval
1773
    ;;
1774
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1775
    ;;
1776
    --enable-debug=*) debuglevel="$optval"
1777
    ;;
1778
    --disable-everything)
1779
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1780
    ;;
1781
    --enable-*=*|--disable-*=*)
1782
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1783
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1784
    eval list=\$$(toupper $thing)_LIST
1785
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1786
    $action $(filter "$name" $list)
1787
    ;;
1788
    --enable-?*|--disable-?*)
1789
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1790
    if is_in $option $COMPONENT_LIST; then
1791
        test $action = disable && action=unset
1792
        eval $action \$$(toupper ${option%s})_LIST
1793
    elif is_in $option $CMDLINE_SELECT; then
1794
        $action $option
1795
    else
1796
        die_unknown $opt
1797
    fi
1798
    ;;
1799
    --list-*)
1800
        NAME="${opt#--list-}"
1801
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1802
        NAME=${NAME%s}
1803
        eval show_list $NAME \$$(toupper $NAME)_LIST
1804
    ;;
1805
    --help|-h) show_help
1806
    ;;
1807
    *)
1808
    optname="${opt%%=*}"
1809
    optname="${optname#--}"
1810
    optname=$(echo "$optname" | sed 's/-/_/g')
1811
    if is_in $optname $CMDLINE_SET; then
1812
        eval $optname='$optval'
1813
    elif is_in $optname $CMDLINE_APPEND; then
1814
        append $optname "$optval"
1815
    else
1816
         die_unknown $opt
1817
    fi
1818
    ;;
1819
    esac
1820
done
1821

    
1822
disabled logging && logfile=/dev/null
1823

    
1824
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1825
set >> $logfile
1826

    
1827
test -n "$cross_prefix" && enable cross_compile
1828

    
1829
if enabled cross_compile; then
1830
    test -n "$arch" && test -n "$target_os" ||
1831
        die "Must specify target arch and OS when cross-compiling"
1832
fi
1833

    
1834
set_default arch target_os
1835

    
1836
ar_default="${cross_prefix}${ar_default}"
1837
cc_default="${cross_prefix}${cc_default}"
1838
nm_default="${cross_prefix}${nm_default}"
1839
pkg_config_default="${cross_prefix}${pkg_config_default}"
1840
ranlib="${cross_prefix}${ranlib}"
1841
strip_default="${cross_prefix}${strip_default}"
1842

    
1843
sysinclude_default="${sysroot}/usr/include"
1844

    
1845
set_default cc nm pkg_config strip sysinclude
1846
enabled cross_compile || host_cc_default=$cc
1847
set_default host_cc
1848

    
1849
exesuf() {
1850
    case $1 in
1851
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
1852
    esac
1853
}
1854

    
1855
EXESUF=$(exesuf $target_os)
1856
HOSTEXESUF=$(exesuf $host_os)
1857

    
1858
# set temporary file name
1859
: ${TMPDIR:=$TEMPDIR}
1860
: ${TMPDIR:=$TMP}
1861
: ${TMPDIR:=/tmp}
1862

    
1863
if ! check_cmd mktemp -u XXXXXX; then
1864
    # simple replacement for missing mktemp
1865
    # NOT SAFE FOR GENERAL USE
1866
    mktemp(){
1867
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1868
    }
1869
fi
1870

    
1871
tmpfile(){
1872
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1873
        (set -C; exec > $tmp) 2>/dev/null ||
1874
        die "Unable to create temporary file in $TMPDIR."
1875
    append TMPFILES $tmp
1876
    eval $1=$tmp
1877
}
1878

    
1879
trap 'rm -f -- $TMPFILES' EXIT
1880

    
1881
tmpfile TMPC  .c
1882
tmpfile TMPE  $EXESUF
1883
tmpfile TMPH  .h
1884
tmpfile TMPO  .o
1885
tmpfile TMPS  .S
1886
tmpfile TMPV  .ver
1887
tmpfile TMPSH .sh
1888
tmpfile TMPASM .asm
1889

    
1890
unset -f mktemp
1891

    
1892
chmod +x $TMPE
1893

    
1894
# make sure we can execute files in $TMPDIR
1895
cat > $TMPSH 2>> $logfile <<EOF
1896
#! /bin/sh
1897
EOF
1898
chmod +x $TMPSH >> $logfile 2>&1
1899
if ! $TMPSH >> $logfile 2>&1; then
1900
    cat <<EOF
1901
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1902
variable to another directory and make sure that it is not mounted noexec.
1903
EOF
1904
    die "Sanity test failed."
1905
fi
1906

    
1907
filter_cflags=echo
1908
filter_cppflags=echo
1909
filter_asflags=echo
1910

    
1911
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1912
    cc_type=llvm_gcc
1913
    cc_version=__VERSION__
1914
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1915
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1916
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1917
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1918
    speed_cflags='-O3'
1919
    size_cflags='-Os'
1920
elif $cc -v 2>&1 | grep -qi ^gcc; then
1921
    cc_type=gcc
1922
    cc_version=__VERSION__
1923
    gcc_version=$($cc --version | head -n1)
1924
    gcc_basever=$($cc -dumpversion)
1925
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1926
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1927
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1928
    if ! $cc -dumpversion | grep -q '^2\.'; then
1929
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1930
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1931
    fi
1932
    speed_cflags='-O3'
1933
    size_cflags='-Os'
1934
elif $cc --version 2>/dev/null | grep -q Intel; then
1935
    cc_type=icc
1936
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1937
    cc_ident=$($cc --version | head -n1)
1938
    icc_version=$($cc -dumpversion)
1939
    CC_DEPFLAGS='-MMD'
1940
    AS_DEPFLAGS='-MMD'
1941
    speed_cflags='-O3'
1942
    size_cflags='-Os'
1943
    noopt_cflags='-O1'
1944
elif $cc -v 2>&1 | grep -q xlc; then
1945
    cc_type=xlc
1946
    cc_version="AV_STRINGIFY(__IBMC__)"
1947
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1948
    speed_cflags='-O5'
1949
    size_cflags='-O5 -qcompact'
1950
elif $cc -V 2>/dev/null | grep -q Compaq; then
1951
    cc_type=ccc
1952
    cc_version="AV_STRINGIFY(__DECC_VER)"
1953
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1954
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1955
    debuglevel=3
1956
    add_ldflags -Wl,-z,now # calls to libots crash without this
1957
    speed_cflags='-fast'
1958
    size_cflags='-O1'
1959
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1960
    test -d "$sysroot" || die "No valid sysroot specified."
1961
    cc_type=armcc
1962
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1963
    cc_ident=$($cc --vsn | head -n1)
1964
    armcc_conf="$PWD/armcc.conf"
1965
    $cc --arm_linux_configure                 \
1966
        --arm_linux_config_file="$armcc_conf" \
1967
        --configure_sysroot="$sysroot"        \
1968
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1969
        die "Error creating armcc configuration file."
1970
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1971
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1972
    as_default="${cross_prefix}gcc"
1973
    CC_DEPFLAGS='-MMD'
1974
    AS_DEPFLAGS='-MMD'
1975
    speed_cflags='-O3'
1976
    size_cflags='-Os'
1977
    filter_asflags="filter_out -W${armcc_opt}*"
1978
elif $cc -version 2>/dev/null | grep -q TMS470; then
1979
    cc_type=tms470
1980
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1981
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1982
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1983
    CC_O='-fr=$(@D)'
1984
    as_default="${cross_prefix}gcc"
1985
    ld_default="${cross_prefix}gcc"
1986
    TMPO=$(basename $TMPC .c).o
1987
    append TMPFILES $TMPO
1988
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1989
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1990
    AS_DEPFLAGS='-MMD'
1991
    speed_cflags='-O3 -mf=5'
1992
    size_cflags='-O3 -mf=2'
1993
    filter_cflags=tms470_flags
1994
    tms470_flags(){
1995
        for flag; do
1996
            case $flag in
1997
                -march=*|-mcpu=*)
1998
                    case "${flag#*=}" in
1999
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
2000
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
2001
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
2002
                        armv6*|arm11*)          echo -mv=6   ;;
2003
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2004
                                                echo -mv=5e  ;;
2005
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2006
                    esac
2007
                    ;;
2008
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2009
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
2010
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2011
                -msoft-float)   echo --float_support=vfplib       ;;
2012
                -O[0-3]|-mf=*)  echo $flag                        ;;
2013
                -g)             echo -g -mn                       ;;
2014
                -pds=*)         echo $flag                        ;;
2015
            esac
2016
        done
2017
    }
2018
elif $cc -v 2>&1 | grep -q clang; then
2019
    cc_type=clang
2020
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2021
        cc_version=__clang_version__ || cc_version=__VERSION__
2022
    cc_ident=$($cc --version | head -n1)
2023
    CC_DEPFLAGS='-MMD'
2024
    AS_DEPFLAGS='-MMD'
2025
    speed_cflags='-O3'
2026
    size_cflags='-Os'
2027
elif $cc -V 2>&1 | grep -q Sun; then
2028
    cc_type=suncc
2029
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2030
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2031
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2032
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2033
    speed_cflags='-O5'
2034
    size_cflags='-O5 -xspace'
2035
    filter_cflags=suncc_flags
2036
    suncc_flags(){
2037
        for flag; do
2038
            case $flag in
2039
                -march=*|-mcpu=*)
2040
                    case "${flag#*=}" in
2041
                        native)                   echo -xtarget=native       ;;
2042
                        v9|niagara)               echo -xarch=sparc          ;;
2043
                        ultrasparc)               echo -xarch=sparcvis       ;;
2044
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2045
                        i586|pentium)             echo -xchip=pentium        ;;
2046
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2047
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2048
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2049
                        pentium4*)          echo -xtarget=pentium4           ;;
2050
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2051
                        *-sse3)             echo -xarch=sse3                 ;;
2052
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2053
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2054
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2055
                        k8|opteron|athlon64|athlon-fx)
2056
                                                  echo -xarch=sse2a          ;;
2057
                        athlon*)                  echo -xarch=pentium_proa   ;;
2058
                    esac
2059
                    ;;
2060
                -std=c99)             echo -xc99              ;;
2061
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2062
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2063
                -W*,*)                echo $flag              ;;
2064
                -f*-*|-W*)                                    ;;
2065
                *)                    echo $flag              ;;
2066
            esac
2067
        done
2068
    }
2069
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2070
    cc_type=pathscale
2071
    cc_version=__PATHSCALE__
2072
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2073
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2074
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2075
    speed_cflags='-O2'
2076
    size_cflags='-Os'
2077
elif $cc -v 2>&1 | grep -q Open64; then
2078
    cc_type=open64
2079
    cc_version=__OPEN64__
2080
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2081
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2082
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2083
    speed_cflags='-O2'
2084
    size_cflags='-Os'
2085
fi
2086

    
2087
test -n "$cc_type" && enable $cc_type ||
2088
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2089

    
2090
: ${as_default:=$cc}
2091
: ${dep_cc_default:=$cc}
2092
: ${ld_default:=$cc}
2093
set_default ar as dep_cc ld
2094

    
2095
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2096
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2097

    
2098
add_cflags $extra_cflags
2099
add_asflags $extra_cflags
2100

    
2101
if test -n "$sysroot"; then
2102
    case "$cc_type" in
2103
        gcc|llvm_gcc|clang)
2104
            add_cppflags --sysroot="$sysroot"
2105
            add_ldflags --sysroot="$sysroot"
2106
        ;;
2107
        tms470)
2108
            add_cppflags -I"$sysinclude"
2109
            add_ldflags  --sysroot="$sysroot"
2110
        ;;
2111
    esac
2112
fi
2113

    
2114
if test "$cpu" = host; then
2115
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2116

    
2117
    case "$cc_type" in
2118
        gcc|llvm_gcc)
2119
            check_native(){
2120
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2121
                sed -n "/$1=/{
2122
                            s/.*$1=\\([^ ]*\\).*/\\1/
2123
                            p
2124
                            q
2125
                        }" $TMPE
2126
            }
2127
            cpu=$(check_native -march || check_native -mcpu)
2128
        ;;
2129
    esac
2130

    
2131
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2132
fi
2133

    
2134
# Deal with common $arch aliases
2135
case "$arch" in
2136
    arm*)
2137
        arch="arm"
2138
    ;;
2139
    mips|mipsel|IP*)
2140
        arch="mips"
2141
    ;;
2142
    mips64*)
2143
        arch="mips"
2144
        subarch="mips64"
2145
    ;;
2146
    parisc|hppa)
2147
        arch="parisc"
2148
    ;;
2149
    parisc64|hppa64)
2150
        arch="parisc"
2151
        subarch="parisc64"
2152
    ;;
2153
    "Power Macintosh"|ppc|powerpc)
2154
        arch="ppc"
2155
    ;;
2156
    ppc64|powerpc64)
2157
        arch="ppc"
2158
        subarch="ppc64"
2159
    ;;
2160
    s390|s390x)
2161
        arch="s390"
2162
    ;;
2163
    sh4|sh)
2164
        arch="sh4"
2165
    ;;
2166
    sun4u|sparc64)
2167
        arch="sparc"
2168
        subarch="sparc64"
2169
    ;;
2170
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2171
        arch="x86"
2172
    ;;
2173
esac
2174

    
2175
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2176
enable $arch
2177

    
2178
# Add processor-specific flags
2179
if test "$cpu" = generic; then
2180
    : do nothing
2181
elif enabled ppc; then
2182

    
2183
    case $(tolower $cpu) in
2184
        601|ppc601|powerpc601)
2185
            cpuflags="-mcpu=601"
2186
            disable altivec
2187
        ;;
2188
        603*|ppc603*|powerpc603*)
2189
            cpuflags="-mcpu=603"
2190
            disable altivec
2191
        ;;
2192
        604*|ppc604*|powerpc604*)
2193
            cpuflags="-mcpu=604"
2194
            disable altivec
2195
        ;;
2196
        g3|75*|ppc75*|powerpc75*)
2197
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2198
            disable altivec
2199
        ;;
2200
        g4|745*|ppc745*|powerpc745*)
2201
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2202
        ;;
2203
        74*|ppc74*|powerpc74*)
2204
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2205
        ;;
2206
        g5|970|ppc970|powerpc970|power4*)
2207
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2208
        ;;
2209
        cell)
2210
            cpuflags="-mcpu=cell"
2211
            enable ldbrx
2212
        ;;
2213
        e500v2)
2214
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2215
            disable altivec
2216
        ;;
2217
        e500)
2218
            cpuflags="-mcpu=8540 -mhard-float"
2219
            disable altivec
2220
        ;;
2221
    esac
2222

    
2223
elif enabled x86; then
2224

    
2225
    case $cpu in
2226
        i[345]86|pentium)
2227
            cpuflags="-march=$cpu"
2228
            disable mmx
2229
        ;;
2230
        # targets that do NOT support conditional mov (cmov)
2231
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2232
            cpuflags="-march=$cpu"
2233
            disable cmov
2234
        ;;
2235
        # targets that do support conditional mov (cmov)
2236
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2237
            cpuflags="-march=$cpu"
2238
            enable cmov
2239
            enable fast_cmov
2240
        ;;
2241
        # targets that do support conditional mov but on which it's slow
2242
        pentium4|pentium4m|prescott|nocona)
2243
            cpuflags="-march=$cpu"
2244
            enable cmov
2245
            disable fast_cmov
2246
        ;;
2247
    esac
2248

    
2249
elif enabled sparc; then
2250

    
2251
    case $cpu in
2252
        niagara)
2253
            cpuflags="-mcpu=$cpu"
2254
            disable vis
2255
        ;;
2256
        sparc64)
2257
            cpuflags="-mcpu=v9"
2258
        ;;
2259
    esac
2260

    
2261
elif enabled arm; then
2262

    
2263
    case $cpu in
2264
        armv*)
2265
            cpuflags="-march=$cpu"
2266
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2267
        ;;
2268
        *)
2269
            cpuflags="-mcpu=$cpu"
2270
            case $cpu in
2271
                cortex-a*)                               subarch=armv7a  ;;
2272
                cortex-r*)                               subarch=armv7r  ;;
2273
                cortex-m*)                               subarch=armv7m  ;;
2274
                arm11*)                                  subarch=armv6   ;;
2275
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2276
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2277
            esac
2278
        ;;
2279
    esac
2280

    
2281
elif enabled alpha; then
2282

    
2283
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2284

    
2285
elif enabled bfin; then
2286

    
2287
    cpuflags="-mcpu=$cpu"
2288

    
2289
elif enabled mips; then
2290

    
2291
    cpuflags="-march=$cpu"
2292

    
2293
elif enabled avr32; then
2294

    
2295
    case $cpu in
2296
        ap7[02]0[0-2])
2297
            subarch="avr32_ap"
2298
            cpuflags="-mpart=$cpu"
2299
        ;;
2300
        ap)
2301
            subarch="avr32_ap"
2302
            cpuflags="-march=$cpu"
2303
        ;;
2304
        uc3[ab]*)
2305
            subarch="avr32_uc"
2306
            cpuflags="-mcpu=$cpu"
2307
        ;;
2308
        uc)
2309
            subarch="avr32_uc"
2310
            cpuflags="-march=$cpu"
2311
        ;;
2312
    esac
2313

    
2314
fi
2315

    
2316
add_cflags $cpuflags
2317
add_asflags $cpuflags
2318

    
2319
# compiler sanity check
2320
check_exec <<EOF
2321
int main(void){ return 0; }
2322
EOF
2323
if test "$?" != 0; then
2324
    echo "$cc is unable to create an executable file."
2325
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2326
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2327
        echo "Only do this if you know what cross compiling means."
2328
    fi
2329
    die "C compiler test failed."
2330
fi
2331

    
2332
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2333
check_cflags -std=c99
2334
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2335
#include <stdlib.h>
2336
EOF
2337
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2338
#include <stdlib.h>
2339
EOF
2340

    
2341
check_host_cflags -std=c99
2342

    
2343
case "$arch" in
2344
    alpha|ia64|mips|parisc|sparc)
2345
        spic=$shared
2346
    ;;
2347
    x86)
2348
        subarch="x86_32"
2349
        check_cc <<EOF && subarch="x86_64"
2350
        int test[(int)sizeof(char*) - 7];
2351
EOF
2352
        if test "$subarch" = "x86_64"; then
2353
            spic=$shared
2354
        fi
2355
    ;;
2356
esac
2357

    
2358
enable $subarch
2359
enabled spic && enable pic
2360

    
2361
# OS specific
2362
case $target_os in
2363
    haiku)
2364
        prefix_default="/boot/common"
2365
        network_extralibs="-lnetwork"
2366
        host_libs=
2367
        ;;
2368
    sunos)
2369
        FFSERVERLDFLAGS=""
2370
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2371
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2372
        network_extralibs="-lsocket -lnsl"
2373
        add_cppflags -D__EXTENSIONS__
2374
        nm_opts='-P -g'
2375
        ;;
2376
    netbsd)
2377
        disable symver
2378
        oss_indev_extralibs="-lossaudio"
2379
        oss_outdev_extralibs="-lossaudio"
2380
        add_cppflags -D_XOPEN_SOURCE=600
2381
        ;;
2382
    openbsd)
2383
        enable malloc_aligned
2384
        # On OpenBSD 4.5. the compiler does not use PIC unless
2385
        # explicitly using -fPIC. FFmpeg builds fine without PIC,
2386
        # however the generated executable will not do anything
2387
        # (simply quits with exit-code 1, no crash, no output).
2388
        # Thus explicitly enable PIC here.
2389
        enable pic
2390
        disable symver
2391
        SHFLAGS='-shared'
2392
        oss_indev_extralibs="-lossaudio"
2393
        oss_outdev_extralibs="-lossaudio"
2394
        ;;
2395
    dragonfly)
2396
        enable malloc_aligned
2397
        disable symver
2398
        ;;
2399
    freebsd)
2400
        enable malloc_aligned
2401
        ;;
2402
    bsd/os)
2403
        add_extralibs -lpoll -lgnugetopt
2404
        strip="strip -d"
2405
        ;;
2406
    darwin)
2407
        enable malloc_aligned
2408
        gas="gas-preprocessor.pl $cc"
2409
        enabled ppc && add_asflags -force_cpusubtype_ALL
2410
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2411
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2412
        strip="${strip} -x"
2413
        add_ldflags -Wl,-dynamic,-search_paths_first
2414
        SLIBSUF=".dylib"
2415
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2416
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2417
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2418
        objformat="macho"
2419
        enabled x86_64 && objformat="macho64"
2420
        enabled_any pic shared ||
2421
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2422
        ;;
2423
    mingw32*)
2424
        if test $target_os = "mingw32ce"; then
2425
            disable network
2426
        else
2427
            target_os=mingw32
2428
        fi
2429
        LIBTARGET=i386
2430
        if enabled x86_64; then
2431
            enable malloc_aligned
2432
            LIBTARGET=x64
2433
        elif enabled arm; then
2434
            LIBTARGET=arm-wince
2435
        fi
2436
        shlibdir_default="$bindir_default"
2437
        SLIBPREF=""
2438
        SLIBSUF=".dll"
2439
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2440
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2441
        SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2442
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2443
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2444
            install -d "$(LIBDIR)"; \
2445
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2446
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2447
        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'
2448
        objformat="win32"
2449
        enable dos_paths
2450
        check_cflags -fno-common
2451
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2452
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2453
                die "ERROR: MinGW runtime version must be >= 3.15."
2454
        add_cppflags -U__STRICT_ANSI__
2455
        ;;
2456
    cygwin*)
2457
        target_os=cygwin
2458
        shlibdir_default="$bindir_default"
2459
        SLIBPREF="cyg"
2460
        SLIBSUF=".dll"
2461
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2462
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2463
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2464
        objformat="win32"
2465
        enable dos_paths
2466
        check_cflags -fno-common
2467
        ;;
2468
    *-dos|freedos|opendos)
2469
        network_extralibs="-lsocket"
2470
        objformat="coff"
2471
        enable dos_paths
2472
        ;;
2473
    linux)
2474
        enable dv1394
2475
        ;;
2476
    irix*)
2477
        target_os=irix
2478
        ranlib="echo ignoring ranlib"
2479
        ;;
2480
    os/2*)
2481
        strip="lxlite -CS"
2482
        ln_s="cp -f"
2483
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2484
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2485
        FFSERVERLDFLAGS=""
2486
        LIBSUF="_s.a"
2487
        SLIBPREF=""
2488
        SLIBSUF=".dll"
2489
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2490
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2491
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2492
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2493
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2494
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2495
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2496
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2497
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2498
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2499
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2500
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2501
        enable dos_paths
2502
        ;;
2503
    gnu/kfreebsd)
2504
        ;;
2505
    gnu)
2506
        ;;
2507
    qnx)
2508
        add_cppflags -D_QNX_SOURCE
2509
        network_extralibs="-lsocket"
2510
        ;;
2511
    symbian)
2512
        SLIBSUF=".dll"
2513
        enable dos_paths
2514
        add_cflags --include=$sysinclude/gcce/gcce.h
2515
        ;;
2516
    none)
2517
        ;;
2518
    *)
2519
        die "Unknown OS '$target_os'."
2520
        ;;
2521
esac
2522

    
2523
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2524

    
2525
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2526

    
2527
set_default $PATHS_LIST
2528

    
2529
# we need to build at least one lib type
2530
if ! enabled_any static shared; then
2531
    cat <<EOF
2532
At least one library type must be built.
2533
Specify --enable-static to build the static libraries or --enable-shared to
2534
build the shared libraries as well. To only build the shared libraries specify
2535
--disable-static in addition to --enable-shared.
2536
EOF
2537
    exit 1;
2538
fi
2539

    
2540
disabled static && LIBNAME=""
2541

    
2542
die_license_disabled() {
2543
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2544
}
2545

    
2546
die_license_disabled gpl libx264
2547
die_license_disabled gpl libxavs
2548
die_license_disabled gpl libxvid
2549
die_license_disabled gpl postproc
2550
die_license_disabled gpl x11grab
2551

    
2552
die_license_disabled nonfree libfaac
2553

    
2554
die_license_disabled version3 libopencore_amrnb
2555
die_license_disabled version3 libopencore_amrwb
2556

    
2557
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2558

    
2559
disabled optimizations || check_cflags -fomit-frame-pointer
2560

    
2561
enable_pic() {
2562
    enable pic
2563
    add_cppflags -DPIC
2564
    add_cflags   -fPIC
2565
    add_asflags  -fPIC
2566
}
2567

    
2568
enabled pic && enable_pic
2569

    
2570
check_cc <<EOF || die "Symbol mangling check failed."
2571
int ff_extern;
2572
EOF
2573
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2574
extern_prefix=${sym%%ff_extern*}
2575

    
2576
check_cc <<EOF && enable inline_asm
2577
void foo(void) { __asm__ volatile ("" ::); }
2578
EOF
2579

    
2580
_restrict=
2581
for restrict_keyword in restrict __restrict__ __restrict; do
2582
    check_cc <<EOF && _restrict=$restrict_keyword && break
2583
void foo(char * $restrict_keyword p);
2584
EOF
2585
done
2586

    
2587
check_cc <<EOF && enable attribute_packed
2588
struct { int x; } __attribute__((packed)) x;
2589
EOF
2590

    
2591
check_cc <<EOF && enable attribute_may_alias
2592
union { int x; } __attribute__((may_alias)) x;
2593
EOF
2594

    
2595
check_cc <<EOF || die "endian test failed"
2596
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2597
EOF
2598
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2599

    
2600
if enabled alpha; then
2601

    
2602
    check_cflags -mieee
2603

    
2604
elif enabled arm; then
2605

    
2606
    check_cflags -marm
2607
    nogas=die
2608

    
2609
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2610
        enable vfp_args
2611
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2612
        case "${cross_prefix:-$cc}" in
2613
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2614
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2615
__asm__ (".eabi_attribute 28, 1");
2616
int main(void) { return 0; }
2617
EOF
2618
        esac
2619
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2620
    fi
2621

    
2622
    # We have to check if pld is a nop and disable it.
2623
    check_asm pld '"pld [r0]"'
2624

    
2625
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2626
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2627
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2628
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2629
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2630
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2631

    
2632
    enabled_all armv6t2 shared !pic && enable_pic
2633

    
2634
elif enabled mips; then
2635

    
2636
    check_asm loongson '"dmult.g $1, $2, $3"'
2637
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2638

    
2639
elif enabled ppc; then
2640

    
2641
    enable local_aligned_8 local_aligned_16
2642

    
2643
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2644
    check_asm ibm_asm   '"add 0, 0, 0"'
2645
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2646
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2647

    
2648
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2649
    if enabled altivec; then
2650
        nogas=warn
2651
        check_cflags -maltivec -mabi=altivec &&
2652
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2653
        check_cflags -faltivec
2654

    
2655
        # check if our compiler supports Motorola AltiVec C API
2656
        check_cc <<EOF || disable altivec
2657
$inc_altivec_h
2658
int main(void) {
2659
    vector signed int v1, v2, v3;
2660
    v1 = vec_add(v2,v3);
2661
    return 0;
2662
}
2663
EOF
2664

    
2665
        # check if our compiler supports braces for vector declarations
2666
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2667
$inc_altivec_h
2668
int main (void) { (vector int) {1}; return 0; }
2669
EOF
2670
    fi
2671

    
2672
elif enabled sparc; then
2673

    
2674
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2675
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2676

    
2677
elif enabled x86; then
2678

    
2679
    enable local_aligned_8 local_aligned_16
2680

    
2681
    # check whether EBP is available on x86
2682
    # As 'i' is stored on the stack, this program will crash
2683
    # if the base pointer is used to access it because the
2684
    # base pointer is cleared in the inline assembly code.
2685
    check_exec_crash <<EOF && enable ebp_available
2686
    volatile int i=0;
2687
    __asm__ volatile (
2688
        "xorl %%ebp, %%ebp"
2689
    ::: "%ebp");
2690
    return i;
2691
EOF
2692

    
2693
    # check whether EBX is available on x86
2694
    check_asm ebx_available '""::"b"(0)' &&
2695
        check_asm ebx_available '"":::"%ebx"'
2696

    
2697
    # check whether xmm clobbers are supported
2698
    check_asm xmm_clobbers '"":::"%xmm0"'
2699

    
2700
    # check whether more than 10 operands are supported
2701
    check_cc <<EOF && enable ten_operands
2702
int main(void) {
2703
    int x=0;
2704
    __asm__ volatile(
2705
        ""
2706
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2707
    );
2708
    return 0;
2709
}
2710
EOF
2711

    
2712
    # check whether binutils is new enough to compile SSSE3/MMX2
2713
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2714
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2715

    
2716
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2717

    
2718
    if ! disabled_any asm mmx yasm; then
2719
        if check_cmd $yasmexe --version; then
2720
            enabled x86_64 && yasm_extra="-m amd64"
2721
            yasm_debug="-g dwarf2"
2722
        elif check_cmd nasm -v; then
2723
            yasmexe=nasm
2724
            yasm_debug="-g -F dwarf"
2725
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2726
        fi
2727

    
2728
        YASMFLAGS="-f $objformat $yasm_extra"
2729
        enabled pic               && append YASMFLAGS "-DPIC"
2730
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2731
        case "$objformat" in
2732
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2733
        esac
2734

    
2735
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2736
            die "yasm not found, use --disable-yasm for a crippled build"
2737
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2738
    fi
2739

    
2740
    case "$cpu" in
2741
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2742
            disable fast_clz
2743
        ;;
2744
    esac
2745

    
2746
fi
2747

    
2748
if enabled asm; then
2749
    as=${gas:=$as}
2750
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2751
        $nogas "GNU assembler not found, install gas-preprocessor"
2752
fi
2753

    
2754
check_ldflags -Wl,--as-needed
2755

    
2756
if check_func dlopen; then
2757
    ldl=
2758
elif check_func dlopen -ldl; then
2759
    ldl=-ldl
2760
fi
2761

    
2762
if enabled network; then
2763
    check_type "sys/types.h sys/socket.h" socklen_t
2764
    check_type netdb.h "struct addrinfo"
2765
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2766
    check_type netinet/in.h "struct sockaddr_in6"
2767
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2768
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2769
    # Prefer arpa/inet.h over winsock2
2770
    if check_header arpa/inet.h ; then
2771
        check_func closesocket
2772
    elif check_header winsock2.h ; then
2773
        check_func_headers winsock2.h closesocket -lws2 && \
2774
            network_extralibs="-lws2" || \
2775
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2776
            network_extralibs="-lws2_32"; }
2777
        check_type ws2tcpip.h socklen_t
2778
        check_type ws2tcpip.h "struct addrinfo"
2779
        check_type ws2tcpip.h "struct ipv6_mreq"
2780
        check_type ws2tcpip.h "struct sockaddr_in6"
2781
        check_type ws2tcpip.h "struct sockaddr_storage"
2782
        check_struct winsock2.h "struct sockaddr" sa_len
2783
    else
2784
        disable network
2785
    fi
2786
fi
2787

    
2788
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2789
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2790

    
2791
check_func  fcntl
2792
check_func  fork
2793
check_func  getaddrinfo $network_extralibs
2794
check_func  gethrtime
2795
check_func  getrusage
2796
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2797
check_func  inet_aton $network_extralibs
2798
check_func  isatty
2799
check_func  localtime_r
2800
check_func  ${malloc_prefix}memalign            && enable memalign
2801
check_func  mkstemp
2802
check_func  mmap
2803
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2804
check_func  setrlimit
2805
check_func  strerror_r
2806
check_func  strtok_r
2807
check_func_headers conio.h kbhit
2808
check_func_headers io.h setmode
2809
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2810
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2811
check_func_headers windows.h GetProcessTimes
2812
check_func_headers windows.h MapViewOfFile
2813
check_func_headers windows.h VirtualAlloc
2814

    
2815
check_header dlfcn.h
2816
check_header dxva2api.h
2817
check_header libcrystalhd/libcrystalhd_if.h
2818
check_header malloc.h
2819
check_header poll.h
2820
check_header sys/mman.h
2821
check_header sys/resource.h
2822
check_header sys/select.h
2823
check_header termios.h
2824
check_header vdpau/vdpau.h
2825
check_header vdpau/vdpau_x11.h
2826
check_header X11/extensions/XvMClib.h
2827

    
2828
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2829

    
2830
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2831
     enabled_any $need_memalign ; then
2832
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2833
fi
2834

    
2835
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2836
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2837

    
2838
# check for some common methods of building with pthread support
2839
# do this before the optional library checks as some of them require pthreads
2840
if ! disabled pthreads && ! enabled w32threads; then
2841
    enable pthreads
2842
    if check_func pthread_create; then
2843
        :
2844
    elif check_func pthread_create -pthread; then
2845
        add_cflags -pthread
2846
        add_extralibs -pthread
2847
    elif check_func pthread_create -pthreads; then
2848
        add_cflags -pthreads
2849
        add_extralibs -pthreads
2850
    elif check_func pthread_create -lpthreadGC2; then
2851
        add_extralibs -lpthreadGC2
2852
    elif ! check_lib pthread.h pthread_create -lpthread; then
2853
        disable pthreads
2854
    fi
2855
fi
2856

    
2857
for thread in $THREADS_LIST; do
2858
    if enabled $thread; then
2859
        test -n "$thread_type" &&
2860
            die "ERROR: Only one thread type must be selected." ||
2861
            thread_type="$thread"
2862
    fi
2863
done
2864

    
2865
check_lib math.h sin -lm
2866
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2867

    
2868
check_mathfunc exp2
2869
check_mathfunc exp2f
2870
check_mathfunc llrint
2871
check_mathfunc llrintf
2872
check_mathfunc log2
2873
check_mathfunc log2f
2874
check_mathfunc lrint
2875
check_mathfunc lrintf
2876
check_mathfunc round
2877
check_mathfunc roundf
2878
check_mathfunc truncf
2879

    
2880
# these are off by default, so fail if requested and not available
2881
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2882
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2883
enabled libdirac   && require_pkg_config dirac                          \
2884
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2885
    "dirac_decoder_init dirac_encoder_init"
2886
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2887
enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2888
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2889
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2890
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2891
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2892
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2893
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2894
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2895
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2896
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2897
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2898
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2899
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2900
enabled libvpx     && {
2901
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2902
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2903
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2904
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2905
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2906
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2907
                        die "ERROR: libx264 version must be >= 0.99."; }
2908
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2909
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2910
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2911

    
2912
# libdc1394 check
2913
if enabled libdc1394; then
2914
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2915
        enable libdc1394_2; } ||
2916
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2917
        enable libdc1394_1; } ||
2918
    die "ERROR: No version of libdc1394 found "
2919
fi
2920

    
2921
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2922
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2923
    enable sdl &&
2924
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2925
fi
2926

    
2927
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2928

    
2929
check_header linux/fb.h
2930
check_header linux/videodev.h
2931
check_header linux/videodev2.h
2932
check_header sys/videoio.h
2933

    
2934
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2935
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2936
# w32api 3.12 had it defined wrong
2937
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2938

    
2939
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2940
{ check_header dev/bktr/ioctl_meteor.h &&
2941
  check_header dev/bktr/ioctl_bt848.h; } ||
2942
{ check_header machine/ioctl_meteor.h &&
2943
  check_header machine/ioctl_bt848.h; } ||
2944
{ check_header dev/video/meteor/ioctl_meteor.h &&
2945
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2946
check_header dev/ic/bt8xx.h
2947

    
2948
check_header sndio.h
2949
check_header sys/soundcard.h
2950
check_header soundcard.h
2951

    
2952
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2953

    
2954
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2955

    
2956
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2957

    
2958
enabled x11grab                         &&
2959
check_header X11/Xlib.h                 &&
2960
check_header X11/extensions/XShm.h      &&
2961
check_header X11/extensions/Xfixes.h    &&
2962
check_func XOpenDisplay -lX11           &&
2963
check_func XShmCreateImage -lX11 -lXext &&
2964
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2965

    
2966
if ! disabled vaapi; then
2967
    check_lib va/va.h vaInitialize -lva && {
2968
        check_cpp_condition va/va_version.h "VA_CHECK_VERSION(0,32,0)" ||
2969
        warn "Please upgrade to VA-API >= 0.32 if you would like full VA-API support.";
2970
    } || disable vaapi
2971
fi
2972

    
2973
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2974
check_cpp_condition \
2975
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2976
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2977
      disable vdpau; }
2978
fi
2979

    
2980
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2981

    
2982
# add some useful compiler flags if supported
2983
check_cflags -Wdeclaration-after-statement
2984
check_cflags -Wall
2985
check_cflags -Wno-parentheses
2986
check_cflags -Wno-switch
2987
check_cflags -Wdisabled-optimization
2988
check_cflags -Wpointer-arith
2989
check_cflags -Wredundant-decls
2990
check_cflags -Wno-pointer-sign
2991
check_cflags -Wcast-qual
2992
check_cflags -Wwrite-strings
2993
check_cflags -Wtype-limits
2994
check_cflags -Wundef
2995
check_cflags -Wmissing-prototypes
2996
enabled extra_warnings && check_cflags -Winline
2997

    
2998
# add some linker flags
2999
check_ldflags -Wl,--warn-common
3000
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'
3001
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
3002

    
3003
echo "X{};" > $TMPV
3004
if test_ldflags -Wl,--version-script,$TMPV; then
3005
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
3006
    check_cc <<EOF && enable symver_asm_label
3007
void ff_foo(void) __asm__ ("av_foo@VERSION");
3008
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
3009
EOF
3010
    check_cc <<EOF && enable symver_gnu_asm
3011
__asm__(".symver ff_foo,av_foo@VERSION");
3012
void ff_foo(void) {}
3013
EOF
3014
fi
3015

    
3016
if enabled small; then
3017
    add_cflags $size_cflags
3018
    optimizations="small"
3019
elif enabled optimizations; then
3020
    add_cflags $speed_cflags
3021
else
3022
    add_cflags $noopt_cflags
3023
fi
3024
check_cflags -fno-math-errno
3025
check_cflags -fno-signed-zeros
3026

    
3027
if enabled icc; then
3028
    # Just warnings, no remarks
3029
    check_cflags -w1
3030
    # -wd: Disable following warnings
3031
    # 144, 167, 556: -Wno-pointer-sign
3032
    # 1292: attribute "foo" ignored
3033
    # 10006: ignoring unknown option -fno-signed-zeros
3034
    # 10148: ignoring unknown option -Wno-parentheses
3035
    # 10156: ignoring option '-W'; no argument required
3036
    check_cflags -wd144,167,556,1292,10006,10148,10156
3037
    # 11030: Warning unknown option --as-needed
3038
    # 10156: ignoring option '-export'; no argument required
3039
    check_ldflags -wd10156,11030
3040
    # Allow to compile with optimizations
3041
    check_ldflags -march=$cpu
3042
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3043
    enable ebp_available
3044
    if enabled x86_32; then
3045
        test ${icc_version%%.*} -ge 11 && \
3046
            check_cflags -falign-stack=maintain-16-byte || \
3047
            disable aligned_stack
3048
    fi
3049
elif enabled ccc; then
3050
    # disable some annoying warnings
3051
    add_cflags -msg_disable cvtu32to64
3052
    add_cflags -msg_disable embedcomment
3053
    add_cflags -msg_disable needconstext
3054
    add_cflags -msg_disable nomainieee
3055
    add_cflags -msg_disable ptrmismatch1
3056
    add_cflags -msg_disable unreachcode
3057
elif enabled gcc; then
3058
    check_cflags -fno-tree-vectorize
3059
    check_cflags -Werror=implicit-function-declaration
3060
    check_cflags -Werror=missing-prototypes
3061
elif enabled llvm_gcc; then
3062
    check_cflags -mllvm -stack-alignment=16
3063
elif enabled clang; then
3064
    check_cflags -mllvm -stack-alignment=16
3065
    check_cflags -Qunused-arguments
3066
elif enabled armcc; then
3067
    # 2523: use of inline assembler is deprecated
3068
    add_cflags -W${armcc_opt},--diag_suppress=2523
3069
    add_cflags -W${armcc_opt},--diag_suppress=1207
3070
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3071
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3072
elif enabled tms470; then
3073
    add_cflags -pds=824 -pds=837
3074
elif enabled pathscale; then
3075
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3076
fi
3077

    
3078
enabled_any $THREADS_LIST      && enable threads
3079

    
3080
check_deps $CONFIG_LIST       \
3081
           $CONFIG_EXTRA      \
3082
           $HAVE_LIST         \
3083
           $DECODER_LIST      \
3084
           $ENCODER_LIST      \
3085
           $HWACCEL_LIST      \
3086
           $PARSER_LIST       \
3087
           $BSF_LIST          \
3088
           $DEMUXER_LIST      \
3089
           $MUXER_LIST        \
3090
           $FILTER_LIST       \
3091
           $INDEV_LIST        \
3092
           $OUTDEV_LIST       \
3093
           $PROTOCOL_LIST     \
3094
           $ACODEC_TESTS      \
3095
           $VCODEC_TESTS      \
3096
           $LAVF_TESTS        \
3097
           $LAVFI_TESTS       \
3098
           $SEEK_TESTS        \
3099

    
3100
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3101

    
3102
echo "install prefix            $prefix"
3103
echo "source path               $source_path"
3104
echo "C compiler                $cc"
3105
echo "ARCH                      $arch ($cpu)"
3106
if test "$build_suffix" != ""; then
3107
    echo "build suffix              $build_suffix"
3108
fi
3109
if test "$extra_version" != ""; then
3110
    echo "version string suffix     $extra_version"
3111
fi
3112
echo "big-endian                ${bigendian-no}"
3113
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3114
if enabled x86; then
3115
    echo "yasm                      ${yasm-no}"
3116
    echo "MMX enabled               ${mmx-no}"
3117
    echo "MMX2 enabled              ${mmx2-no}"
3118
    echo "3DNow! enabled            ${amd3dnow-no}"
3119
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3120
    echo "SSE enabled               ${sse-no}"
3121
    echo "SSSE3 enabled             ${ssse3-no}"
3122
    echo "CMOV enabled              ${cmov-no}"
3123
    echo "CMOV is fast              ${fast_cmov-no}"
3124
    echo "EBX available             ${ebx_available-no}"
3125
    echo "EBP available             ${ebp_available-no}"
3126
    echo "10 operands supported     ${ten_operands-no}"
3127
fi
3128
if enabled arm; then
3129
    echo "ARMv5TE enabled           ${armv5te-no}"
3130
    echo "ARMv6 enabled             ${armv6-no}"
3131
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3132
    echo "ARM VFP enabled           ${armvfp-no}"
3133
    echo "IWMMXT enabled            ${iwmmxt-no}"
3134
    echo "NEON enabled              ${neon-no}"
3135
fi
3136
if enabled mips; then
3137
    echo "MMI enabled               ${mmi-no}"
3138
fi
3139
if enabled ppc; then
3140
    echo "AltiVec enabled           ${altivec-no}"
3141
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3142
    echo "dcbzl available           ${dcbzl-no}"
3143
fi
3144
if enabled sparc; then
3145
    echo "VIS enabled               ${vis-no}"
3146
fi
3147
echo "debug symbols             ${debug-no}"
3148
echo "strip symbols             ${stripping-no}"
3149
echo "optimizations             ${optimizations-no}"
3150
echo "static                    ${static-no}"
3151
echo "shared                    ${shared-no}"
3152
echo "postprocessing support    ${postproc-no}"
3153
echo "new filter support        ${avfilter-no}"
3154
echo "network support           ${network-no}"
3155
echo "threading support         ${thread_type-no}"
3156
echo "SDL support               ${sdl-no}"
3157
echo "Sun medialib support      ${mlib-no}"
3158
echo "AVISynth enabled          ${avisynth-no}"
3159
echo "frei0r enabled            ${frei0r-no}"
3160
echo "libdc1394 support         ${libdc1394-no}"
3161
echo "libdirac enabled          ${libdirac-no}"
3162
echo "libfaac enabled           ${libfaac-no}"
3163
echo "libgsm enabled            ${libgsm-no}"
3164
echo "libmp3lame enabled        ${libmp3lame-no}"
3165
echo "libnut enabled            ${libnut-no}"
3166
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3167
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3168
echo "libopencv support         ${libopencv-no}"
3169
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3170
echo "librtmp enabled           ${librtmp-no}"
3171
echo "libschroedinger enabled   ${libschroedinger-no}"
3172
echo "libspeex enabled          ${libspeex-no}"
3173
echo "libtheora enabled         ${libtheora-no}"
3174
echo "libva enabled             ${vaapi-no}"
3175
echo "libvorbis enabled         ${libvorbis-no}"
3176
echo "libvpx enabled            ${libvpx-no}"
3177
echo "libx264 enabled           ${libx264-no}"
3178
echo "libxavs enabled           ${libxavs-no}"
3179
echo "libxvid enabled           ${libxvid-no}"
3180
echo "zlib enabled              ${zlib-no}"
3181
echo "bzlib enabled             ${bzlib-no}"
3182
echo
3183

    
3184
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3185
    echo "Enabled ${type}s:"
3186
    eval list=\$$(toupper $type)_LIST
3187
    print_enabled '_*' $list | sort | pr -r -3 -t
3188
    echo
3189
done
3190

    
3191
license="LGPL version 2.1 or later"
3192
if enabled nonfree; then
3193
    license="nonfree and unredistributable"
3194
elif enabled gplv3; then
3195
    license="GPL version 3 or later"
3196
elif enabled lgplv3; then
3197
    license="LGPL version 3 or later"
3198
elif enabled gpl; then
3199
    license="GPL version 2 or later"
3200
fi
3201

    
3202
echo "License: $license"
3203

    
3204
echo "Creating config.mak and config.h..."
3205

    
3206
# build tree in object directory if source path is different from current one
3207
if enabled source_path_used; then
3208
    DIRS="
3209
        doc
3210
        libavcodec
3211
        libavcodec/$arch
3212
        libavdevice
3213
        libavfilter
3214
        libavfilter/$arch
3215
        libavfilter/libmpcodecs
3216
        libavfilter/libmpcodecs/libvo
3217
        libavformat
3218
        libavutil
3219
        libavutil/$arch
3220
        libpostproc
3221
        libswscale
3222
        libswscale/$arch
3223
        tests
3224
        tools
3225
    "
3226
    FILES="
3227
        Makefile
3228
        common.mak
3229
        subdir.mak
3230
        doc/texi2pod.pl
3231
        libavcodec/Makefile
3232
        libavcodec/${arch}/Makefile
3233
        libavdevice/Makefile
3234
        libavfilter/Makefile
3235
        libavfilter/${arch}/Makefile
3236
        libavformat/Makefile
3237
        libavutil/Makefile
3238
        libpostproc/Makefile
3239
        libswscale/Makefile
3240
    "
3241
    map 'mkdir -p $v' $DIRS;
3242
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3243
fi
3244

    
3245
enabled stripping || strip="echo skipping strip"
3246

    
3247
config_files="$TMPH config.mak"
3248

    
3249
cat > config.mak <<EOF
3250
# Automatically generated by configure - do not modify!
3251
ifndef FFMPEG_CONFIG_MAK
3252
FFMPEG_CONFIG_MAK=1
3253
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3254
prefix=$prefix
3255
LIBDIR=\$(DESTDIR)$libdir
3256
SHLIBDIR=\$(DESTDIR)$shlibdir
3257
INCDIR=\$(DESTDIR)$incdir
3258
BINDIR=\$(DESTDIR)$bindir
3259
DATADIR=\$(DESTDIR)$datadir
3260
MANDIR=\$(DESTDIR)$mandir
3261
SRC_PATH="$source_path"
3262
SRC_PATH_BARE=$source_path
3263
BUILD_ROOT="$PWD"
3264
CC_IDENT=$cc_ident
3265
ARCH=$arch
3266
CC=$cc
3267
AS=$as
3268
LD=$ld
3269
DEPCC=$dep_cc
3270
YASM=$yasmexe
3271
YASMDEP=$yasmexe
3272
AR=$ar
3273
RANLIB=$ranlib
3274
CP=cp -p
3275
LN_S=$ln_s
3276
STRIP=$strip
3277
CPPFLAGS=$CPPFLAGS
3278
CFLAGS=$CFLAGS
3279
ASFLAGS=$ASFLAGS
3280
CC_O=$CC_O
3281
LDFLAGS=$LDFLAGS
3282
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3283
SHFLAGS=$SHFLAGS
3284
YASMFLAGS=$YASMFLAGS
3285
BUILDSUF=$build_suffix
3286
FULLNAME=$FULLNAME
3287
LIBPREF=$LIBPREF
3288
LIBSUF=$LIBSUF
3289
LIBNAME=$LIBNAME
3290
SLIBPREF=$SLIBPREF
3291
SLIBSUF=$SLIBSUF
3292
EXESUF=$EXESUF
3293
EXTRA_VERSION=$extra_version
3294
DEPFLAGS=$DEPFLAGS
3295
CCDEP=$CCDEP
3296
ASDEP=$ASDEP
3297
CC_DEPFLAGS=$CC_DEPFLAGS
3298
AS_DEPFLAGS=$AS_DEPFLAGS
3299
HOSTCC=$host_cc
3300
HOSTCFLAGS=$host_cflags
3301
HOSTEXESUF=$HOSTEXESUF
3302
HOSTLDFLAGS=$host_ldflags
3303
HOSTLIBS=$host_libs
3304
TARGET_EXEC=$target_exec
3305
TARGET_PATH=$target_path
3306
SDL_LIBS=$sdl_libs
3307
SDL_CFLAGS=$sdl_cflags
3308
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3309
EXTRALIBS=$extralibs
3310
INSTALL=install
3311
LIBTARGET=${LIBTARGET}
3312
SLIBNAME=${SLIBNAME}
3313
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3314
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3315
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3316
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3317
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3318
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3319
SAMPLES:=${samples:-\$(FATE_SAMPLES)}
3320
EOF
3321

    
3322
get_version(){
3323
    name=$1
3324
    file=$source_path/$2
3325
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3326
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3327
    lcname=$(tolower $name)
3328
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3329
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3330
}
3331

    
3332
get_version LIBSWSCALE  libswscale/swscale.h
3333
get_version LIBPOSTPROC libpostproc/postprocess.h
3334
get_version LIBAVCODEC  libavcodec/version.h
3335
get_version LIBAVDEVICE libavdevice/avdevice.h
3336
get_version LIBAVFORMAT libavformat/version.h
3337
get_version LIBAVUTIL   libavutil/avutil.h
3338
get_version LIBAVFILTER libavfilter/avfilter.h
3339

    
3340
cat > $TMPH <<EOF
3341
/* Automatically generated by configure - do not modify! */
3342
#ifndef FFMPEG_CONFIG_H
3343
#define FFMPEG_CONFIG_H
3344
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3345
#define FFMPEG_LICENSE "$(c_escape $license)"
3346
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3347
#define CC_TYPE "$cc_type"
3348
#define CC_VERSION $cc_version
3349
#define restrict $_restrict
3350
#define EXTERN_PREFIX "${extern_prefix}"
3351
#define EXTERN_ASM ${extern_prefix}
3352
#define SLIBSUF "$SLIBSUF"
3353
EOF
3354

    
3355
test -n "$malloc_prefix" &&
3356
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3357

    
3358
if enabled small || disabled optimizations; then
3359
    echo "#undef  av_always_inline"  >> $TMPH
3360
    if enabled small; then
3361
        echo "#define av_always_inline inline"  >> $TMPH
3362
    else
3363
        echo "#define av_always_inline av_unused"  >> $TMPH
3364
    fi
3365
fi
3366

    
3367
if enabled yasm; then
3368
    append config_files $TMPASM
3369
    printf '' >$TMPASM
3370
fi
3371

    
3372
print_config ARCH_   "$config_files" $ARCH_LIST
3373
print_config HAVE_   "$config_files" $HAVE_LIST
3374
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3375
                                     $CONFIG_EXTRA      \
3376
                                     $DECODER_LIST      \
3377
                                     $ENCODER_LIST      \
3378
                                     $HWACCEL_LIST      \
3379
                                     $PARSER_LIST       \
3380
                                     $BSF_LIST          \
3381
                                     $DEMUXER_LIST      \
3382
                                     $MUXER_LIST        \
3383
                                     $FILTER_LIST       \
3384
                                     $PROTOCOL_LIST     \
3385
                                     $INDEV_LIST        \
3386
                                     $OUTDEV_LIST       \
3387

    
3388
cat >>config.mak <<EOF
3389
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3390
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3391
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3392
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3393
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3394
EOF
3395

    
3396
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3397
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3398

    
3399
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3400
cp_if_changed $TMPH config.h
3401
touch .config
3402

    
3403
enabled yasm && cp_if_changed $TMPASM config.asm
3404

    
3405
cat > $TMPH <<EOF
3406
/* Generated by ffconf */
3407
#ifndef AVUTIL_AVCONFIG_H
3408
#define AVUTIL_AVCONFIG_H
3409
EOF
3410

    
3411
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3412

    
3413
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3414

    
3415
cp_if_changed $TMPH libavutil/avconfig.h
3416

    
3417
test -n "$WARNINGS" && printf "\n$WARNINGS"
3418

    
3419
# build pkg-config files
3420

    
3421
pkgconfig_generate(){
3422
name=$1
3423
shortname=${name#lib}${build_suffix}
3424
comment=$2
3425
version=$3
3426
libs=$4
3427
requires=$5
3428
enabled ${name#lib} || return 0
3429
cat <<EOF > $name/$name.pc
3430
prefix=$prefix
3431
exec_prefix=\${prefix}
3432
libdir=$libdir
3433
includedir=$incdir
3434

    
3435
Name: $name
3436
Description: $comment
3437
Version: $version
3438
Requires: $(enabled shared || echo $requires)
3439
Requires.private: $(enabled shared && echo $requires)
3440
Conflicts:
3441
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3442
Libs.private: $(enabled shared && echo $libs)
3443
Cflags: -I\${includedir}
3444
EOF
3445
cat <<EOF > $name/$name-uninstalled.pc
3446
prefix=
3447
exec_prefix=
3448
libdir=\${pcfiledir}
3449
includedir=${source_path}
3450

    
3451
Name: $name
3452
Description: $comment
3453
Version: $version
3454
Requires: $requires
3455
Conflicts:
3456
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3457
Cflags: -I\${includedir}
3458
EOF
3459
}
3460

    
3461
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3462
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3463
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3464
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3465
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3466
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3467
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"