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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]
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  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
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  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
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  --disable-avdevice       disable libavdevice build
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  --disable-avcodec        disable libavcodec build
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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]
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  --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]
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  --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
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  --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
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  --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
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  --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
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  --disable-hwaccel=NAME   disable hwaccel NAME
124
  --enable-hwaccel=NAME    enable hwaccel NAME
125
  --disable-hwaccels       disable all hwaccels
126
  --disable-muxer=NAME     disable muxer NAME
127
  --enable-muxer=NAME      enable muxer NAME
128
  --disable-muxers         disable all muxers
129
  --disable-demuxer=NAME   disable demuxer NAME
130
  --enable-demuxer=NAME    enable demuxer NAME
131
  --disable-demuxers       disable all demuxers
132
  --enable-parser=NAME     enable parser NAME
133
  --disable-parser=NAME    disable parser NAME
134
  --disable-parsers        disable all parsers
135
  --enable-bsf=NAME        enable bitstream filter NAME
136
  --disable-bsf=NAME       disable bitstream filter NAME
137
  --disable-bsfs           disable all bitstream filters
138
  --enable-protocol=NAME   enable protocol NAME
139
  --disable-protocol=NAME  disable protocol NAME
140
  --disable-protocols      disable all protocols
141
  --disable-indev=NAME     disable input device NAME
142
  --disable-outdev=NAME    disable output device NAME
143
  --disable-indevs         disable input devices
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  --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,
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                           native implementation exists [no]
184
  --enable-libvpx          enable VP8 support via libvpx [no]
185
  --enable-libx264         enable H.264 encoding via x264 [no]
186
  --enable-libxavs         enable AVS encoding via xavs [no]
187
  --enable-libxvid         enable Xvid encoding via xvidcore,
188
                           native MPEG-4/Xvid encoder exists [no]
189
  --enable-mlib            enable Sun medialib [no]
190
  --enable-zlib            enable zlib [autodetect]
191

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

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

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

    
255
quotes='""'
256

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

    
976
THREADS_LIST='
977
    pthreads
978
    w32threads
979
'
980

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

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

    
1025
HAVE_LIST_PUB='
1026
    bigendian
1027
    fast_unaligned
1028
'
1029

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

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

    
1139
CMDLINE_SELECT="
1140
    $ARCH_EXT_LIST
1141
    $CONFIG_LIST
1142
    $THREADS_LIST
1143
    asm
1144
    cross_compile
1145
    debug
1146
    extra_warnings
1147
    logging
1148
    optimizations
1149
    stripping
1150
    symver
1151
    yasm
1152
"
1153

    
1154
PATHS_LIST='
1155
    bindir
1156
    datadir
1157
    incdir
1158
    libdir
1159
    mandir
1160
    prefix
1161
    shlibdir
1162
'
1163

    
1164
CMDLINE_SET="
1165
    $PATHS_LIST
1166
    ar
1167
    arch
1168
    as
1169
    build_suffix
1170
    cc
1171
    cpu
1172
    cross_prefix
1173
    dep_cc
1174
    extra_version
1175
    host_cc
1176
    host_cflags
1177
    host_ldflags
1178
    host_libs
1179
    host_os
1180
    ld
1181
    logfile
1182
    malloc_prefix
1183
    nm
1184
    pkg_config
1185
    samples
1186
    source_path
1187
    strip
1188
    sysinclude
1189
    sysroot
1190
    target_exec
1191
    target_os
1192
    target_path
1193
"
1194

    
1195
CMDLINE_APPEND="
1196
    extra_cflags
1197
"
1198

    
1199
# code dependency declarations
1200

    
1201
# architecture extensions
1202

    
1203
armv5te_deps="arm"
1204
armv6_deps="arm"
1205
armv6t2_deps="arm"
1206
armvfp_deps="arm"
1207
iwmmxt_deps="arm"
1208
neon_deps="arm"
1209

    
1210
mmi_deps="mips"
1211

    
1212
altivec_deps="ppc"
1213
ppc4xx_deps="ppc"
1214

    
1215
vis_deps="sparc"
1216

    
1217
x86_64_suggest="cmov fast_cmov"
1218
amd3dnow_deps="mmx"
1219
amd3dnowext_deps="amd3dnow"
1220
mmx_deps="x86"
1221
mmx2_deps="mmx"
1222
sse_deps="mmx"
1223
ssse3_deps="sse"
1224
avx_deps="ssse3"
1225

    
1226
aligned_stack_if_any="ppc x86"
1227
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1228
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1229
fast_unaligned_if_any="armv6 ppc x86"
1230

    
1231
need_memalign="altivec neon sse"
1232
inline_asm_deps="!tms470"
1233

    
1234
symver_if_any="symver_asm_label symver_gnu_asm"
1235

    
1236
# subsystems
1237
dct_select="rdft"
1238
mdct_select="fft"
1239
rdft_select="fft"
1240

    
1241
# decoders / encoders / hardware accelerators
1242
aac_decoder_select="mdct rdft sinewin"
1243
aac_encoder_select="mdct sinewin"
1244
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1245
ac3_decoder_select="mdct ac3_parser"
1246
ac3_encoder_select="mdct ac3dsp"
1247
ac3_fixed_encoder_select="ac3dsp"
1248
alac_encoder_select="lpc"
1249
amrnb_decoder_select="lsp"
1250
amrwb_decoder_select="lsp"
1251
atrac1_decoder_select="mdct sinewin"
1252
atrac3_decoder_select="mdct"
1253
binkaudio_dct_decoder_select="mdct rdft dct"
1254
binkaudio_rdft_decoder_select="mdct rdft"
1255
cavs_decoder_select="golomb"
1256
cook_decoder_select="mdct sinewin"
1257
cscd_decoder_suggest="zlib"
1258
dca_decoder_select="mdct"
1259
dnxhd_encoder_select="aandct"
1260
dxa_decoder_select="zlib"
1261
eac3_decoder_select="ac3_decoder"
1262
eamad_decoder_select="aandct"
1263
eatgq_decoder_select="aandct"
1264
eatqi_decoder_select="aandct"
1265
ffv1_decoder_select="golomb"
1266
flac_decoder_select="golomb"
1267
flac_encoder_select="golomb lpc"
1268
flashsv_decoder_select="zlib"
1269
flashsv_encoder_select="zlib"
1270
flv_decoder_select="h263_decoder"
1271
flv_encoder_select="h263_encoder"
1272
fraps_decoder_select="huffman"
1273
h261_encoder_select="aandct"
1274
h263_decoder_select="h263_parser"
1275
h263_encoder_select="aandct"
1276
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1277
h263i_decoder_select="h263_decoder"
1278
h263p_encoder_select="h263_encoder"
1279
h264_decoder_select="golomb h264dsp h264pred"
1280
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1281
h264_dxva2_hwaccel_deps="dxva2api_h"
1282
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1283
h264_vaapi_hwaccel_select="vaapi"
1284
h264_vdpau_decoder_select="vdpau h264_decoder"
1285
imc_decoder_select="fft mdct"
1286
jpegls_decoder_select="golomb"
1287
jpegls_encoder_select="golomb"
1288
ljpeg_encoder_select="aandct"
1289
loco_decoder_select="golomb"
1290
mjpeg_encoder_select="aandct"
1291
mlp_decoder_select="mlp_parser"
1292
mp1float_decoder_select="dct"
1293
mp2float_decoder_select="dct"
1294
mp3adufloat_decoder_select="dct"
1295
mp3float_decoder_select="dct"
1296
mp3on4float_decoder_select="dct"
1297
mpeg1video_encoder_select="aandct"
1298
mpeg2video_encoder_select="aandct"
1299
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1300
mpeg4_encoder_select="h263_encoder"
1301
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1302
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1303
mpeg2_crystalhd_decoder_select="crystalhd"
1304
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1305
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1306
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1307
mpeg4_crystalhd_decoder_select="crystalhd"
1308
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1309
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1310
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1311
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1312
msmpeg4_crystalhd_decoder_select="crystalhd"
1313
msmpeg4v1_decoder_select="h263_decoder"
1314
msmpeg4v1_encoder_select="h263_encoder"
1315
msmpeg4v2_decoder_select="h263_decoder"
1316
msmpeg4v2_encoder_select="h263_encoder"
1317
msmpeg4v3_decoder_select="h263_decoder"
1318
msmpeg4v3_encoder_select="h263_encoder"
1319
nellymoser_decoder_select="mdct sinewin"
1320
nellymoser_encoder_select="mdct sinewin"
1321
png_decoder_select="zlib"
1322
png_encoder_select="zlib"
1323
qcelp_decoder_select="lsp"
1324
qdm2_decoder_select="mdct rdft"
1325
ra_144_encoder_select="lpc"
1326
rv10_decoder_select="h263_decoder"
1327
rv10_encoder_select="h263_encoder"
1328
rv20_decoder_select="h263_decoder"
1329
rv20_encoder_select="h263_encoder"
1330
rv30_decoder_select="golomb h264pred"
1331
rv40_decoder_select="golomb h264pred"
1332
shorten_decoder_select="golomb"
1333
sipr_decoder_select="lsp"
1334
snow_decoder_select="dwt"
1335
snow_encoder_select="aandct dwt"
1336
sonic_decoder_select="golomb"
1337
sonic_encoder_select="golomb"
1338
sonic_ls_encoder_select="golomb"
1339
svq1_encoder_select="aandct"
1340
svq3_decoder_select="golomb h264dsp h264pred"
1341
svq3_decoder_suggest="zlib"
1342
theora_decoder_select="vp3_decoder"
1343
tiff_decoder_suggest="zlib"
1344
tiff_encoder_suggest="zlib"
1345
truehd_decoder_select="mlp_decoder"
1346
tscc_decoder_select="zlib"
1347
twinvq_decoder_select="mdct lsp sinewin"
1348
vc1_decoder_select="h263_decoder"
1349
vc1_crystalhd_decoder_select="crystalhd"
1350
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1351
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1352
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1353
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1354
vorbis_decoder_select="mdct"
1355
vorbis_encoder_select="mdct"
1356
vp6_decoder_select="huffman"
1357
vp6a_decoder_select="vp6_decoder"
1358
vp6f_decoder_select="vp6_decoder"
1359
vp8_decoder_select="h264pred"
1360
wmapro_decoder_select="mdct sinewin"
1361
wmav1_decoder_select="mdct sinewin"
1362
wmav1_encoder_select="mdct sinewin"
1363
wmav2_decoder_select="mdct sinewin"
1364
wmav2_encoder_select="mdct sinewin"
1365
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1366
wmv1_decoder_select="h263_decoder"
1367
wmv1_encoder_select="h263_encoder"
1368
wmv2_decoder_select="h263_decoder"
1369
wmv2_encoder_select="h263_encoder"
1370
wmv3_decoder_select="vc1_decoder"
1371
wmv3_crystalhd_decoder_select="crystalhd"
1372
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1373
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1374
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1375
zlib_decoder_select="zlib"
1376
zlib_encoder_select="zlib"
1377
zmbv_decoder_select="zlib"
1378
zmbv_encoder_select="zlib"
1379

    
1380
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1381
vaapi_deps="va_va_h"
1382
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1383

    
1384
# parsers
1385
h264_parser_select="golomb h264dsp h264pred"
1386

    
1387
# external libraries
1388
libdirac_decoder_deps="libdirac !libschroedinger"
1389
libdirac_encoder_deps="libdirac"
1390
libfaac_encoder_deps="libfaac"
1391
libgsm_decoder_deps="libgsm"
1392
libgsm_encoder_deps="libgsm"
1393
libgsm_ms_decoder_deps="libgsm"
1394
libgsm_ms_encoder_deps="libgsm"
1395
libmp3lame_encoder_deps="libmp3lame"
1396
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1397
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1398
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1399
libopenjpeg_decoder_deps="libopenjpeg"
1400
libschroedinger_decoder_deps="libschroedinger"
1401
libschroedinger_encoder_deps="libschroedinger"
1402
libspeex_decoder_deps="libspeex"
1403
libtheora_encoder_deps="libtheora"
1404
libvorbis_encoder_deps="libvorbis"
1405
libvpx_decoder_deps="libvpx"
1406
libvpx_encoder_deps="libvpx"
1407
libx264_encoder_deps="libx264"
1408
libxavs_encoder_deps="libxavs"
1409
libxvid_encoder_deps="libxvid"
1410

    
1411
# demuxers / muxers
1412
ac3_demuxer_select="ac3_parser"
1413
asf_stream_muxer_select="asf_muxer"
1414
avisynth_demuxer_deps="avisynth"
1415
dirac_demuxer_select="dirac_parser"
1416
eac3_demuxer_select="ac3_parser"
1417
flac_demuxer_select="flac_parser"
1418
ipod_muxer_select="mov_muxer"
1419
libnut_demuxer_deps="libnut"
1420
libnut_muxer_deps="libnut"
1421
matroska_audio_muxer_select="matroska_muxer"
1422
matroska_demuxer_suggest="zlib bzlib"
1423
mov_demuxer_suggest="zlib"
1424
mp3_demuxer_select="mpegaudio_parser"
1425
mp4_muxer_select="mov_muxer"
1426
mpegtsraw_demuxer_select="mpegts_demuxer"
1427
mxf_d10_muxer_select="mxf_muxer"
1428
ogg_demuxer_select="golomb"
1429
psp_muxer_select="mov_muxer"
1430
rtp_demuxer_select="sdp_demuxer"
1431
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1432
rtsp_demuxer_select="http_protocol rtpdec"
1433
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1434
sap_demuxer_select="sdp_demuxer"
1435
sap_muxer_select="rtp_muxer rtp_protocol"
1436
sdp_demuxer_select="rtpdec"
1437
spdif_muxer_select="aac_parser"
1438
tg2_muxer_select="mov_muxer"
1439
tgp_muxer_select="mov_muxer"
1440
w64_demuxer_deps="wav_demuxer"
1441

    
1442
# indevs / outdevs
1443
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1444
alsa_outdev_deps="alsa_asoundlib_h"
1445
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1446
dv1394_indev_deps="dv1394 dv_demuxer"
1447
fbdev_indev_deps="linux_fb_h"
1448
jack_indev_deps="jack_jack_h"
1449
libdc1394_indev_deps="libdc1394"
1450
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1451
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1452
sndio_indev_deps="sndio_h"
1453
sndio_outdev_deps="sndio_h"
1454
v4l_indev_deps="linux_videodev_h"
1455
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1456
vfwcap_indev_deps="capCreateCaptureWindow vfwcap_defines"
1457
vfwcap_indev_extralibs="-lavicap32"
1458
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1459
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1460

    
1461
# protocols
1462
gopher_protocol_deps="network"
1463
http_protocol_deps="network"
1464
http_protocol_select="tcp_protocol"
1465
mmsh_protocol_select="http_protocol"
1466
mmst_protocol_deps="network"
1467
rtmp_protocol_select="tcp_protocol"
1468
rtp_protocol_select="udp_protocol"
1469
tcp_protocol_deps="network"
1470
udp_protocol_deps="network"
1471

    
1472
# filters
1473
blackframe_filter_deps="gpl"
1474
cropdetect_filter_deps="gpl"
1475
drawtext_filter_deps="libfreetype"
1476
frei0r_filter_deps="frei0r dlopen strtok_r"
1477
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1478
hqdn3d_filter_deps="gpl"
1479
mp_filter_deps="gpl"
1480
ocv_filter_deps="libopencv"
1481
scale_filter_deps="swscale"
1482
yadif_filter_deps="gpl"
1483

    
1484
# libraries
1485
avdevice_deps="avcodec avformat"
1486
avformat_deps="avcodec"
1487

    
1488
# programs
1489
ffmpeg_deps="avcodec avformat swscale"
1490
ffmpeg_select="buffer_filter"
1491
ffplay_deps="avcodec avformat swscale sdl"
1492
ffplay_select="rdft"
1493
ffprobe_deps="avcodec avformat"
1494
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1495
ffserver_extralibs='$ldl'
1496

    
1497
doc_deps="texi2html"
1498

    
1499
# tests
1500

    
1501
test_deps(){
1502
    suf1=$1
1503
    suf2=$2
1504
    shift 2
1505
    for v; do
1506
        dep=${v%=*}
1507
        tests=${v#*=}
1508
        for name in ${tests}; do
1509
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1510
        done
1511
    done
1512
}
1513

    
1514
set_ne_test_deps(){
1515
    eval ${1}_be_test_deps="bigendian"
1516
    eval ${1}_le_test_deps="!bigendian"
1517
}
1518

    
1519
test_deps _encoder _decoder                                             \
1520
    adpcm_g726=g726                                                     \
1521
    adpcm_ima_qt                                                        \
1522
    adpcm_ima_wav                                                       \
1523
    adpcm_ms                                                            \
1524
    adpcm_swf                                                           \
1525
    adpcm_yamaha=adpcm_yam                                              \
1526
    alac                                                                \
1527
    asv1                                                                \
1528
    asv2                                                                \
1529
    bmp                                                                 \
1530
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1531
    dvvideo="dv dv50"                                                   \
1532
    ffv1                                                                \
1533
    flac                                                                \
1534
    flashsv                                                             \
1535
    flv                                                                 \
1536
    gif                                                                 \
1537
    h261                                                                \
1538
    h263="h263 h263p"                                                   \
1539
    huffyuv                                                             \
1540
    jpegls                                                              \
1541
    mjpeg="jpg mjpeg ljpeg"                                             \
1542
    mp2                                                                 \
1543
    mpeg1video="mpeg mpeg1b"                                            \
1544
    mpeg2video="mpeg2 mpeg2thread"                                      \
1545
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1546
    msmpeg4v3=msmpeg4                                                   \
1547
    msmpeg4v2                                                           \
1548
    pbm=pbmpipe                                                         \
1549
    pcx                                                                 \
1550
    pgm="pgm pgmpipe"                                                   \
1551
    png                                                                 \
1552
    ppm="ppm ppmpipe"                                                   \
1553
    rawvideo="rgb yuv"                                                  \
1554
    roq                                                                 \
1555
    rv10                                                                \
1556
    rv20                                                                \
1557
    sgi                                                                 \
1558
    snow="snow snowll"                                                  \
1559
    svq1                                                                \
1560
    targa=tga                                                           \
1561
    tiff                                                                \
1562
    wmav1                                                               \
1563
    wmav2                                                               \
1564
    wmv1                                                                \
1565
    wmv2                                                                \
1566

    
1567
test_deps _muxer _demuxer                                               \
1568
    aiff                                                                \
1569
    pcm_alaw=alaw                                                       \
1570
    asf                                                                 \
1571
    au                                                                  \
1572
    avi                                                                 \
1573
    dv=dv_fmt                                                           \
1574
    ffm                                                                 \
1575
    flv=flv_fmt                                                         \
1576
    gxf                                                                 \
1577
    matroska=mkv                                                        \
1578
    mmf                                                                 \
1579
    mov                                                                 \
1580
    pcm_mulaw=mulaw                                                     \
1581
    mxf                                                                 \
1582
    nut                                                                 \
1583
    ogg                                                                 \
1584
    rawvideo=pixfmt                                                     \
1585
    rm                                                                  \
1586
    swf                                                                 \
1587
    mpegts=ts                                                           \
1588
    voc                                                                 \
1589
    wav                                                                 \
1590
    yuv4mpegpipe=yuv4mpeg                                               \
1591

    
1592
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1593
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1594

    
1595
set_ne_test_deps pixdesc
1596
set_ne_test_deps pixfmts_copy
1597
set_ne_test_deps pixfmts_crop
1598
set_ne_test_deps pixfmts_hflip
1599
set_ne_test_deps pixfmts_null
1600
set_ne_test_deps pixfmts_pad
1601
set_ne_test_deps pixfmts_scale
1602
set_ne_test_deps pixfmts_vflip
1603

    
1604
# default parameters
1605

    
1606
logfile="config.log"
1607

    
1608
# installation paths
1609
prefix_default="/usr/local"
1610
bindir_default='${prefix}/bin'
1611
datadir_default='${prefix}/share/ffmpeg'
1612
incdir_default='${prefix}/include'
1613
libdir_default='${prefix}/lib'
1614
mandir_default='${prefix}/share/man'
1615
shlibdir_default="$libdir_default"
1616

    
1617
# toolchain
1618
ar_default="ar"
1619
cc_default="gcc"
1620
cc_version=\"unknown\"
1621
host_cc_default="gcc"
1622
ln_s="ln -sf"
1623
nm_default="nm"
1624
objformat="elf"
1625
pkg_config_default=pkg-config
1626
ranlib="ranlib"
1627
strip_default="strip"
1628
yasmexe="yasm"
1629
nogas=":"
1630

    
1631
nm_opts='-g'
1632

    
1633
# machine
1634
arch_default=$(uname -m)
1635
cpu="generic"
1636

    
1637
# OS
1638
target_os_default=$(tolower $(uname -s))
1639
host_os=$target_os_default
1640

    
1641
# configurable options
1642
enable avcodec
1643
enable avdevice
1644
enable avfilter
1645
enable avformat
1646
enable avutil
1647
enable asm
1648
enable debug
1649
enable doc
1650
enable fastdiv
1651
enable ffmpeg
1652
enable ffplay
1653
enable ffprobe
1654
enable ffserver
1655
enable mpegaudio_hp
1656
enable network
1657
enable optimizations
1658
enable protocols
1659
enable static
1660
enable stripping
1661
enable swscale
1662
enable swscale_alpha
1663

    
1664
# build settings
1665
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1666
FFSERVERLDFLAGS=-Wl,-E
1667
LIBPREF="lib"
1668
LIBSUF=".a"
1669
FULLNAME='$(NAME)$(BUILDSUF)'
1670
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1671
SLIBPREF="lib"
1672
SLIBSUF=".so"
1673
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1674
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1675
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1676
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1677

    
1678
CC_O='-o $@'
1679

    
1680
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1681
host_libs='-lm'
1682

    
1683
target_path='$(CURDIR)'
1684

    
1685
# since the object filename is not given with the -MM flag, the compiler
1686
# is only able to print the basename, and we must add the path ourselves
1687
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1688
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1689

    
1690
# find source path
1691
source_path="$(dirname "$0")"
1692
enable source_path_used
1693
if test -f configure; then
1694
    source_path="$(pwd)"
1695
    disable source_path_used
1696
else
1697
    source_path="$(cd "$source_path"; pwd)"
1698
    echo "$source_path" | grep -q '[[:blank:]]' &&
1699
        die "Out of tree builds are impossible with whitespace in source path."
1700
    test -e "$source_path/config.h" &&
1701
        die "Out of tree builds are impossible with config.h in source dir."
1702
fi
1703

    
1704
for v in "$@"; do
1705
    r=${v#*=}
1706
    l=${v%"$r"}
1707
    r=$(sh_quote "$r")
1708
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1709
done
1710

    
1711
find_things(){
1712
    thing=$1
1713
    pattern=$2
1714
    file=$source_path/$3
1715
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1716
}
1717

    
1718
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1719
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1720
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1721
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1722
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1723
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1724
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1725
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1726
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1727
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1728
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1729

    
1730
find_tests(){
1731
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1732
}
1733

    
1734
ACODEC_TESTS=$(find_tests acodec)
1735
VCODEC_TESTS=$(find_tests vsynth1)
1736
LAVF_TESTS=$(find_tests lavf)
1737
LAVFI_TESTS=$(find_tests lavfi)
1738
SEEK_TESTS=$(find_tests seek seek_)
1739

    
1740
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1741

    
1742
for n in $COMPONENT_LIST; do
1743
    v=$(toupper ${n%s})_LIST
1744
    eval enable \$$v
1745
    eval ${n}_if_any="\$$v"
1746
done
1747

    
1748
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1749

    
1750
die_unknown(){
1751
    echo "Unknown option \"$1\"."
1752
    echo "See $0 --help for available options."
1753
    exit 1
1754
}
1755

    
1756
show_list() {
1757
    suffix=_$1
1758
    shift
1759
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1760
    exit 0
1761
}
1762

    
1763
for opt do
1764
    optval="${opt#*=}"
1765
    case "$opt" in
1766
    --extra-ldflags=*) add_ldflags $optval
1767
    ;;
1768
    --extra-libs=*) add_extralibs $optval
1769
    ;;
1770
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1771
    ;;
1772
    --enable-debug=*) debuglevel="$optval"
1773
    ;;
1774
    --disable-everything)
1775
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1776
    ;;
1777
    --enable-*=*|--disable-*=*)
1778
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1779
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1780
    eval list=\$$(toupper $thing)_LIST
1781
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1782
    $action $(filter "$name" $list)
1783
    ;;
1784
    --enable-?*|--disable-?*)
1785
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1786
    if is_in $option $COMPONENT_LIST; then
1787
        test $action = disable && action=unset
1788
        eval $action \$$(toupper ${option%s})_LIST
1789
    elif is_in $option $CMDLINE_SELECT; then
1790
        $action $option
1791
    else
1792
        die_unknown $opt
1793
    fi
1794
    ;;
1795
    --list-*)
1796
        NAME="${opt#--list-}"
1797
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1798
        NAME=${NAME%s}
1799
        eval show_list $NAME \$$(toupper $NAME)_LIST
1800
    ;;
1801
    --help|-h) show_help
1802
    ;;
1803
    *)
1804
    optname="${opt%%=*}"
1805
    optname="${optname#--}"
1806
    optname=$(echo "$optname" | sed 's/-/_/g')
1807
    if is_in $optname $CMDLINE_SET; then
1808
        eval $optname='$optval'
1809
    elif is_in $optname $CMDLINE_APPEND; then
1810
        append $optname "$optval"
1811
    else
1812
         die_unknown $opt
1813
    fi
1814
    ;;
1815
    esac
1816
done
1817

    
1818
disabled logging && logfile=/dev/null
1819

    
1820
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1821
set >> $logfile
1822

    
1823
test -n "$cross_prefix" && enable cross_compile
1824

    
1825
if enabled cross_compile; then
1826
    test -n "$arch" && test -n "$target_os" ||
1827
        die "Must specify target arch and OS when cross-compiling"
1828
fi
1829

    
1830
set_default arch target_os
1831

    
1832
ar_default="${cross_prefix}${ar_default}"
1833
cc_default="${cross_prefix}${cc_default}"
1834
nm_default="${cross_prefix}${nm_default}"
1835
pkg_config_default="${cross_prefix}${pkg_config_default}"
1836
ranlib="${cross_prefix}${ranlib}"
1837
strip_default="${cross_prefix}${strip_default}"
1838

    
1839
sysinclude_default="${sysroot}/usr/include"
1840

    
1841
set_default cc nm pkg_config strip sysinclude
1842
enabled cross_compile || host_cc_default=$cc
1843
set_default host_cc
1844

    
1845
exesuf() {
1846
    case $1 in
1847
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1848
    esac
1849
}
1850

    
1851
EXESUF=$(exesuf $target_os)
1852
HOSTEXESUF=$(exesuf $host_os)
1853

    
1854
# set temporary file name
1855
: ${TMPDIR:=$TEMPDIR}
1856
: ${TMPDIR:=$TMP}
1857
: ${TMPDIR:=/tmp}
1858

    
1859
if ! check_cmd mktemp -u XXXXXX; then
1860
    # simple replacement for missing mktemp
1861
    # NOT SAFE FOR GENERAL USE
1862
    mktemp(){
1863
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1864
    }
1865
fi
1866

    
1867
tmpfile(){
1868
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1869
        (set -C; exec > $tmp) 2>/dev/null ||
1870
        die "Unable to create temporary file in $TMPDIR."
1871
    append TMPFILES $tmp
1872
    eval $1=$tmp
1873
}
1874

    
1875
trap 'rm -f -- $TMPFILES' EXIT
1876

    
1877
tmpfile TMPC  .c
1878
tmpfile TMPE  $EXESUF
1879
tmpfile TMPH  .h
1880
tmpfile TMPO  .o
1881
tmpfile TMPS  .S
1882
tmpfile TMPV  .ver
1883
tmpfile TMPSH .sh
1884
tmpfile TMPASM .asm
1885

    
1886
unset -f mktemp
1887

    
1888
chmod +x $TMPE
1889

    
1890
# make sure we can execute files in $TMPDIR
1891
cat > $TMPSH 2>> $logfile <<EOF
1892
#! /bin/sh
1893
EOF
1894
chmod +x $TMPSH >> $logfile 2>&1
1895
if ! $TMPSH >> $logfile 2>&1; then
1896
    cat <<EOF
1897
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1898
variable to another directory and make sure that it is not mounted noexec.
1899
EOF
1900
    die "Sanity test failed."
1901
fi
1902

    
1903
filter_cflags=echo
1904
filter_cppflags=echo
1905
filter_asflags=echo
1906

    
1907
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1908
    cc_type=llvm_gcc
1909
    cc_version=__VERSION__
1910
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1911
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1912
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1913
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1914
    speed_cflags='-O3'
1915
    size_cflags='-Os'
1916
elif $cc -v 2>&1 | grep -qi ^gcc; then
1917
    cc_type=gcc
1918
    cc_version=__VERSION__
1919
    gcc_version=$($cc --version | head -n1)
1920
    gcc_basever=$($cc -dumpversion)
1921
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1922
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1923
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1924
    if ! $cc -dumpversion | grep -q '^2\.'; then
1925
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1926
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1927
    fi
1928
    speed_cflags='-O3'
1929
    size_cflags='-Os'
1930
elif $cc --version 2>/dev/null | grep -q Intel; then
1931
    cc_type=icc
1932
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1933
    cc_ident=$($cc --version | head -n1)
1934
    icc_version=$($cc -dumpversion)
1935
    CC_DEPFLAGS='-MMD'
1936
    AS_DEPFLAGS='-MMD'
1937
    speed_cflags='-O3'
1938
    size_cflags='-Os'
1939
    noopt_cflags='-O1'
1940
elif $cc -v 2>&1 | grep -q xlc; then
1941
    cc_type=xlc
1942
    cc_version="AV_STRINGIFY(__IBMC__)"
1943
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1944
    speed_cflags='-O5'
1945
    size_cflags='-O5 -qcompact'
1946
elif $cc -V 2>/dev/null | grep -q Compaq; then
1947
    cc_type=ccc
1948
    cc_version="AV_STRINGIFY(__DECC_VER)"
1949
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1950
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1951
    debuglevel=3
1952
    add_ldflags -Wl,-z,now # calls to libots crash without this
1953
    speed_cflags='-fast'
1954
    size_cflags='-O1'
1955
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1956
    test -d "$sysroot" || die "No valid sysroot specified."
1957
    cc_type=armcc
1958
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1959
    cc_ident=$($cc --vsn | head -n1)
1960
    armcc_conf="$PWD/armcc.conf"
1961
    $cc --arm_linux_configure                 \
1962
        --arm_linux_config_file="$armcc_conf" \
1963
        --configure_sysroot="$sysroot"        \
1964
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1965
        die "Error creating armcc configuration file."
1966
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1967
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1968
    as_default="${cross_prefix}gcc"
1969
    CC_DEPFLAGS='-MMD'
1970
    AS_DEPFLAGS='-MMD'
1971
    speed_cflags='-O3'
1972
    size_cflags='-Os'
1973
    filter_asflags="filter_out -W${armcc_opt}*"
1974
elif $cc -version 2>/dev/null | grep -q TMS470; then
1975
    cc_type=tms470
1976
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1977
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1978
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1979
    CC_O='-fr=$(@D)'
1980
    as_default="${cross_prefix}gcc"
1981
    ld_default="${cross_prefix}gcc"
1982
    TMPO=$(basename $TMPC .c).o
1983
    append TMPFILES $TMPO
1984
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1985
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1986
    AS_DEPFLAGS='-MMD'
1987
    speed_cflags='-O3 -mf=5'
1988
    size_cflags='-O3 -mf=2'
1989
    filter_cflags=tms470_flags
1990
    tms470_flags(){
1991
        for flag; do
1992
            case $flag in
1993
                -march=*|-mcpu=*)
1994
                    case "${flag#*=}" in
1995
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1996
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1997
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1998
                        armv6*|arm11*)          echo -mv=6   ;;
1999
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
2000
                                                echo -mv=5e  ;;
2001
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
2002
                    esac
2003
                    ;;
2004
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2005
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
2006
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2007
                -msoft-float)   echo --float_support=vfplib       ;;
2008
                -O[0-3]|-mf=*)  echo $flag                        ;;
2009
                -g)             echo -g -mn                       ;;
2010
                -pds=*)         echo $flag                        ;;
2011
            esac
2012
        done
2013
    }
2014
elif $cc -v 2>&1 | grep -q clang; then
2015
    cc_type=clang
2016
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2017
        cc_version=__clang_version__ || cc_version=__VERSION__
2018
    cc_ident=$($cc --version | head -n1)
2019
    CC_DEPFLAGS='-MMD'
2020
    AS_DEPFLAGS='-MMD'
2021
    speed_cflags='-O3'
2022
    size_cflags='-Os'
2023
elif $cc -V 2>&1 | grep -q Sun; then
2024
    cc_type=suncc
2025
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2026
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2027
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2028
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2029
    speed_cflags='-O5'
2030
    size_cflags='-O5 -xspace'
2031
    filter_cflags=suncc_flags
2032
    suncc_flags(){
2033
        for flag; do
2034
            case $flag in
2035
                -march=*|-mcpu=*)
2036
                    case "${flag#*=}" in
2037
                        native)                   echo -xtarget=native       ;;
2038
                        v9|niagara)               echo -xarch=sparc          ;;
2039
                        ultrasparc)               echo -xarch=sparcvis       ;;
2040
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2041
                        i586|pentium)             echo -xchip=pentium        ;;
2042
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2043
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2044
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2045
                        pentium4*)          echo -xtarget=pentium4           ;;
2046
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2047
                        *-sse3)             echo -xarch=sse3                 ;;
2048
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2049
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2050
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2051
                        k8|opteron|athlon64|athlon-fx)
2052
                                                  echo -xarch=sse2a          ;;
2053
                        athlon*)                  echo -xarch=pentium_proa   ;;
2054
                    esac
2055
                    ;;
2056
                -std=c99)             echo -xc99              ;;
2057
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2058
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2059
                -W*,*)                echo $flag              ;;
2060
                -f*-*|-W*)                                    ;;
2061
                *)                    echo $flag              ;;
2062
            esac
2063
        done
2064
    }
2065
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2066
    cc_type=pathscale
2067
    cc_version=__PATHSCALE__
2068
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2069
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2070
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2071
    speed_cflags='-O2'
2072
    size_cflags='-Os'
2073
elif $cc -v 2>&1 | grep -q Open64; then
2074
    cc_type=open64
2075
    cc_version=__OPEN64__
2076
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2077
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2078
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2079
    speed_cflags='-O2'
2080
    size_cflags='-Os'
2081
fi
2082

    
2083
test -n "$cc_type" && enable $cc_type ||
2084
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2085

    
2086
: ${as_default:=$cc}
2087
: ${dep_cc_default:=$cc}
2088
: ${ld_default:=$cc}
2089
set_default ar as dep_cc ld
2090

    
2091
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2092
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2093

    
2094
add_cflags $extra_cflags
2095
add_asflags $extra_cflags
2096

    
2097
if test -n "$sysroot"; then
2098
    case "$cc_type" in
2099
        gcc|llvm_gcc|clang)
2100
            add_cppflags --sysroot="$sysroot"
2101
            add_ldflags --sysroot="$sysroot"
2102
        ;;
2103
        tms470)
2104
            add_cppflags -I"$sysinclude"
2105
            add_ldflags  --sysroot="$sysroot"
2106
        ;;
2107
    esac
2108
fi
2109

    
2110
if test "$cpu" = host; then
2111
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2112

    
2113
    case "$cc_type" in
2114
        gcc|llvm_gcc)
2115
            check_native(){
2116
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2117
                sed -n "/$1=/{
2118
                            s/.*$1=\\([^ ]*\\).*/\\1/
2119
                            p
2120
                            q
2121
                        }" $TMPE
2122
            }
2123
            cpu=$(check_native -march || check_native -mcpu)
2124
        ;;
2125
    esac
2126

    
2127
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2128
fi
2129

    
2130
# Deal with common $arch aliases
2131
case "$arch" in
2132
    arm*)
2133
        arch="arm"
2134
    ;;
2135
    mips|mipsel|IP*)
2136
        arch="mips"
2137
    ;;
2138
    mips64*)
2139
        arch="mips"
2140
        subarch="mips64"
2141
    ;;
2142
    parisc|hppa)
2143
        arch="parisc"
2144
    ;;
2145
    parisc64|hppa64)
2146
        arch="parisc"
2147
        subarch="parisc64"
2148
    ;;
2149
    "Power Macintosh"|ppc|powerpc)
2150
        arch="ppc"
2151
    ;;
2152
    ppc64|powerpc64)
2153
        arch="ppc"
2154
        subarch="ppc64"
2155
    ;;
2156
    s390|s390x)
2157
        arch="s390"
2158
    ;;
2159
    sh4|sh)
2160
        arch="sh4"
2161
    ;;
2162
    sun4u|sparc64)
2163
        arch="sparc"
2164
        subarch="sparc64"
2165
    ;;
2166
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2167
        arch="x86"
2168
    ;;
2169
esac
2170

    
2171
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2172
enable $arch
2173

    
2174
# Add processor-specific flags
2175
if test "$cpu" = generic; then
2176
    : do nothing
2177
elif enabled ppc; then
2178

    
2179
    case $(tolower $cpu) in
2180
        601|ppc601|powerpc601)
2181
            cpuflags="-mcpu=601"
2182
            disable altivec
2183
        ;;
2184
        603*|ppc603*|powerpc603*)
2185
            cpuflags="-mcpu=603"
2186
            disable altivec
2187
        ;;
2188
        604*|ppc604*|powerpc604*)
2189
            cpuflags="-mcpu=604"
2190
            disable altivec
2191
        ;;
2192
        g3|75*|ppc75*|powerpc75*)
2193
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2194
            disable altivec
2195
        ;;
2196
        g4|745*|ppc745*|powerpc745*)
2197
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2198
        ;;
2199
        74*|ppc74*|powerpc74*)
2200
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2201
        ;;
2202
        g5|970|ppc970|powerpc970|power4*)
2203
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2204
        ;;
2205
        cell)
2206
            cpuflags="-mcpu=cell"
2207
            enable ldbrx
2208
        ;;
2209
        e500v2)
2210
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2211
            disable altivec
2212
        ;;
2213
        e500)
2214
            cpuflags="-mcpu=8540 -mhard-float"
2215
            disable altivec
2216
        ;;
2217
    esac
2218

    
2219
elif enabled x86; then
2220

    
2221
    case $cpu in
2222
        i[345]86|pentium)
2223
            cpuflags="-march=$cpu"
2224
            disable mmx
2225
        ;;
2226
        # targets that do NOT support conditional mov (cmov)
2227
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2228
            cpuflags="-march=$cpu"
2229
            disable cmov
2230
        ;;
2231
        # targets that do support conditional mov (cmov)
2232
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2233
            cpuflags="-march=$cpu"
2234
            enable cmov
2235
            enable fast_cmov
2236
        ;;
2237
        # targets that do support conditional mov but on which it's slow
2238
        pentium4|pentium4m|prescott|nocona)
2239
            cpuflags="-march=$cpu"
2240
            enable cmov
2241
            disable fast_cmov
2242
        ;;
2243
    esac
2244

    
2245
elif enabled sparc; then
2246

    
2247
    case $cpu in
2248
        niagara)
2249
            cpuflags="-mcpu=$cpu"
2250
            disable vis
2251
        ;;
2252
        sparc64)
2253
            cpuflags="-mcpu=v9"
2254
        ;;
2255
    esac
2256

    
2257
elif enabled arm; then
2258

    
2259
    case $cpu in
2260
        armv*)
2261
            cpuflags="-march=$cpu"
2262
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2263
        ;;
2264
        *)
2265
            cpuflags="-mcpu=$cpu"
2266
            case $cpu in
2267
                cortex-a*)                               subarch=armv7a  ;;
2268
                cortex-r*)                               subarch=armv7r  ;;
2269
                cortex-m*)                               subarch=armv7m  ;;
2270
                arm11*)                                  subarch=armv6   ;;
2271
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2272
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2273
            esac
2274
        ;;
2275
    esac
2276

    
2277
elif enabled alpha; then
2278

    
2279
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2280

    
2281
elif enabled bfin; then
2282

    
2283
    cpuflags="-mcpu=$cpu"
2284

    
2285
elif enabled mips; then
2286

    
2287
    cpuflags="-march=$cpu"
2288

    
2289
elif enabled avr32; then
2290

    
2291
    case $cpu in
2292
        ap7[02]0[0-2])
2293
            subarch="avr32_ap"
2294
            cpuflags="-mpart=$cpu"
2295
        ;;
2296
        ap)
2297
            subarch="avr32_ap"
2298
            cpuflags="-march=$cpu"
2299
        ;;
2300
        uc3[ab]*)
2301
            subarch="avr32_uc"
2302
            cpuflags="-mcpu=$cpu"
2303
        ;;
2304
        uc)
2305
            subarch="avr32_uc"
2306
            cpuflags="-march=$cpu"
2307
        ;;
2308
    esac
2309

    
2310
fi
2311

    
2312
add_cflags $cpuflags
2313
add_asflags $cpuflags
2314

    
2315
# compiler sanity check
2316
check_exec <<EOF
2317
int main(void){ return 0; }
2318
EOF
2319
if test "$?" != 0; then
2320
    echo "$cc is unable to create an executable file."
2321
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2322
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2323
        echo "Only do this if you know what cross compiling means."
2324
    fi
2325
    die "C compiler test failed."
2326
fi
2327

    
2328
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2329
check_cflags -std=c99
2330
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2331
#include <stdlib.h>
2332
EOF
2333
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2334
#include <stdlib.h>
2335
EOF
2336

    
2337
check_host_cflags -std=c99
2338

    
2339
case "$arch" in
2340
    alpha|ia64|mips|parisc|sparc)
2341
        spic=$shared
2342
    ;;
2343
    x86)
2344
        subarch="x86_32"
2345
        check_cc <<EOF && subarch="x86_64"
2346
        int test[(int)sizeof(char*) - 7];
2347
EOF
2348
        if test "$subarch" = "x86_64"; then
2349
            spic=$shared
2350
        fi
2351
    ;;
2352
esac
2353

    
2354
enable $subarch
2355
enabled spic && enable pic
2356

    
2357
# OS specific
2358
case $target_os in
2359
    haiku)
2360
        prefix_default="/boot/common"
2361
        network_extralibs="-lnetwork"
2362
        host_libs=
2363
        ;;
2364
    sunos)
2365
        FFSERVERLDFLAGS=""
2366
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2367
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2368
        network_extralibs="-lsocket -lnsl"
2369
        add_cppflags -D__EXTENSIONS__
2370
        nm_opts='-P -g'
2371
        ;;
2372
    netbsd)
2373
        disable symver
2374
        oss_indev_extralibs="-lossaudio"
2375
        oss_outdev_extralibs="-lossaudio"
2376
        add_cppflags -D_XOPEN_SOURCE=600
2377
        ;;
2378
    openbsd)
2379
        enable malloc_aligned
2380
        # On OpenBSD 4.5. the compiler does not use PIC unless
2381
        # explicitly using -fPIC. FFmpeg builds fine without PIC,
2382
        # however the generated executable will not do anything
2383
        # (simply quits with exit-code 1, no crash, no output).
2384
        # Thus explicitly enable PIC here.
2385
        enable pic
2386
        disable symver
2387
        SHFLAGS='-shared'
2388
        oss_indev_extralibs="-lossaudio"
2389
        oss_outdev_extralibs="-lossaudio"
2390
        ;;
2391
    dragonfly)
2392
        enable malloc_aligned
2393
        disable symver
2394
        ;;
2395
    freebsd)
2396
        enable malloc_aligned
2397
        ;;
2398
    bsd/os)
2399
        add_extralibs -lpoll -lgnugetopt
2400
        strip="strip -d"
2401
        ;;
2402
    darwin)
2403
        enable malloc_aligned
2404
        gas="gas-preprocessor.pl $cc"
2405
        enabled ppc && add_asflags -force_cpusubtype_ALL
2406
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2407
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2408
        strip="${strip} -x"
2409
        add_ldflags -Wl,-dynamic,-search_paths_first
2410
        SLIBSUF=".dylib"
2411
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2412
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2413
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2414
        objformat="macho"
2415
        enabled x86_64 && objformat="macho64"
2416
        enabled_any pic shared ||
2417
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2418
        ;;
2419
    mingw32*)
2420
        if test $target_os = "mingw32ce"; then
2421
            disable network
2422
        else
2423
            target_os=mingw32
2424
        fi
2425
        LIBTARGET=i386
2426
        if enabled x86_64; then
2427
            enable malloc_aligned
2428
            LIBTARGET="i386:x86-64"
2429
        elif enabled arm; then
2430
            LIBTARGET=arm-wince
2431
        fi
2432
        shlibdir_default="$bindir_default"
2433
        SLIBPREF=""
2434
        SLIBSUF=".dll"
2435
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2436
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2437
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2438
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2439
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2440
            install -d "$(LIBDIR)"; \
2441
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2442
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2443
        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'
2444
        objformat="win32"
2445
        dlltool="${cross_prefix}dlltool"
2446
        enable dos_paths
2447
        check_cflags -fno-common
2448
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2449
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2450
                die "ERROR: MinGW runtime version must be >= 3.15."
2451
        add_cppflags -U__STRICT_ANSI__
2452
        ;;
2453
    cygwin*)
2454
        target_os=cygwin
2455
        shlibdir_default="$bindir_default"
2456
        SLIBPREF="cyg"
2457
        SLIBSUF=".dll"
2458
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2459
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2460
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2461
        objformat="win32"
2462
        enable dos_paths
2463
        check_cflags -fno-common
2464
        ;;
2465
    *-dos|freedos|opendos)
2466
        network_extralibs="-lsocket"
2467
        objformat="coff"
2468
        enable dos_paths
2469
        ;;
2470
    linux)
2471
        enable dv1394
2472
        ;;
2473
    irix*)
2474
        target_os=irix
2475
        ranlib="echo ignoring ranlib"
2476
        ;;
2477
    os/2*)
2478
        strip="lxlite -CS"
2479
        ln_s="cp -f"
2480
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2481
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2482
        FFSERVERLDFLAGS=""
2483
        LIBSUF="_s.a"
2484
        SLIBPREF=""
2485
        SLIBSUF=".dll"
2486
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2487
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2488
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2489
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2490
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2491
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2492
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2493
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2494
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2495
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2496
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2497
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2498
        enable dos_paths
2499
        ;;
2500
    gnu/kfreebsd)
2501
        ;;
2502
    gnu)
2503
        ;;
2504
    qnx)
2505
        add_cppflags -D_QNX_SOURCE
2506
        network_extralibs="-lsocket"
2507
        ;;
2508
    none)
2509
        ;;
2510
    *)
2511
        die "Unknown OS '$target_os'."
2512
        ;;
2513
esac
2514

    
2515
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2516

    
2517
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2518

    
2519
set_default $PATHS_LIST
2520

    
2521
# we need to build at least one lib type
2522
if ! enabled_any static shared; then
2523
    cat <<EOF
2524
At least one library type must be built.
2525
Specify --enable-static to build the static libraries or --enable-shared to
2526
build the shared libraries as well. To only build the shared libraries specify
2527
--disable-static in addition to --enable-shared.
2528
EOF
2529
    exit 1;
2530
fi
2531

    
2532
disabled static && LIBNAME=""
2533

    
2534
die_license_disabled() {
2535
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2536
}
2537

    
2538
die_license_disabled gpl libx264
2539
die_license_disabled gpl libxavs
2540
die_license_disabled gpl libxvid
2541
die_license_disabled gpl postproc
2542
die_license_disabled gpl x11grab
2543

    
2544
die_license_disabled nonfree libfaac
2545

    
2546
die_license_disabled version3 libopencore_amrnb
2547
die_license_disabled version3 libopencore_amrwb
2548

    
2549
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2550

    
2551
disabled optimizations || check_cflags -fomit-frame-pointer
2552

    
2553
enable_pic() {
2554
    enable pic
2555
    add_cppflags -DPIC
2556
    add_cflags   -fPIC
2557
    add_asflags  -fPIC
2558
}
2559

    
2560
enabled pic && enable_pic
2561

    
2562
check_cc <<EOF || die "Symbol mangling check failed."
2563
int ff_extern;
2564
EOF
2565
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2566
extern_prefix=${sym%%ff_extern*}
2567

    
2568
check_cc <<EOF && enable inline_asm
2569
void foo(void) { __asm__ volatile ("" ::); }
2570
EOF
2571

    
2572
_restrict=
2573
for restrict_keyword in restrict __restrict__ __restrict; do
2574
    check_cc <<EOF && _restrict=$restrict_keyword && break
2575
void foo(char * $restrict_keyword p);
2576
EOF
2577
done
2578

    
2579
check_cc <<EOF && enable attribute_packed
2580
struct { int x; } __attribute__((packed)) x;
2581
EOF
2582

    
2583
check_cc <<EOF && enable attribute_may_alias
2584
union { int x; } __attribute__((may_alias)) x;
2585
EOF
2586

    
2587
check_cc <<EOF || die "endian test failed"
2588
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2589
EOF
2590
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2591

    
2592
if enabled alpha; then
2593

    
2594
    check_cflags -mieee
2595

    
2596
elif enabled arm; then
2597

    
2598
    check_cflags -marm
2599
    nogas=die
2600

    
2601
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2602
        enable vfp_args
2603
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2604
        case "${cross_prefix:-$cc}" in
2605
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2606
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2607
__asm__ (".eabi_attribute 28, 1");
2608
int main(void) { return 0; }
2609
EOF
2610
        esac
2611
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2612
    fi
2613

    
2614
    # We have to check if pld is a nop and disable it.
2615
    check_asm pld '"pld [r0]"'
2616

    
2617
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2618
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2619
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2620
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2621
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2622
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2623

    
2624
    enabled_all armv6t2 shared !pic && enable_pic
2625

    
2626
elif enabled mips; then
2627

    
2628
    check_asm loongson '"dmult.g $1, $2, $3"'
2629
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2630

    
2631
elif enabled ppc; then
2632

    
2633
    enable local_aligned_8 local_aligned_16
2634

    
2635
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2636
    check_asm ibm_asm   '"add 0, 0, 0"'
2637
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2638
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2639

    
2640
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2641
    if enabled altivec; then
2642
        nogas=warn
2643
        check_cflags -maltivec -mabi=altivec &&
2644
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2645
        check_cflags -faltivec
2646

    
2647
        # check if our compiler supports Motorola AltiVec C API
2648
        check_cc <<EOF || disable altivec
2649
$inc_altivec_h
2650
int main(void) {
2651
    vector signed int v1, v2, v3;
2652
    v1 = vec_add(v2,v3);
2653
    return 0;
2654
}
2655
EOF
2656

    
2657
        # check if our compiler supports braces for vector declarations
2658
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2659
$inc_altivec_h
2660
int main (void) { (vector int) {1}; return 0; }
2661
EOF
2662
    fi
2663

    
2664
elif enabled sparc; then
2665

    
2666
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2667
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2668

    
2669
elif enabled x86; then
2670

    
2671
    enable local_aligned_8 local_aligned_16
2672

    
2673
    # check whether EBP is available on x86
2674
    # As 'i' is stored on the stack, this program will crash
2675
    # if the base pointer is used to access it because the
2676
    # base pointer is cleared in the inline assembly code.
2677
    check_exec_crash <<EOF && enable ebp_available
2678
    volatile int i=0;
2679
    __asm__ volatile (
2680
        "xorl %%ebp, %%ebp"
2681
    ::: "%ebp");
2682
    return i;
2683
EOF
2684

    
2685
    # check whether EBX is available on x86
2686
    check_asm ebx_available '""::"b"(0)' &&
2687
        check_asm ebx_available '"":::"%ebx"'
2688

    
2689
    # check whether xmm clobbers are supported
2690
    check_asm xmm_clobbers '"":::"%xmm0"'
2691

    
2692
    # check whether more than 10 operands are supported
2693
    check_cc <<EOF && enable ten_operands
2694
int main(void) {
2695
    int x=0;
2696
    __asm__ volatile(
2697
        ""
2698
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2699
    );
2700
    return 0;
2701
}
2702
EOF
2703

    
2704
    # check whether binutils is new enough to compile SSSE3/MMX2
2705
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2706
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2707

    
2708
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2709

    
2710
    if ! disabled_any asm mmx yasm; then
2711
        if check_cmd $yasmexe --version; then
2712
            enabled x86_64 && yasm_extra="-m amd64"
2713
            yasm_debug="-g dwarf2"
2714
        elif check_cmd nasm -v; then
2715
            yasmexe=nasm
2716
            yasm_debug="-g -F dwarf"
2717
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2718
        fi
2719

    
2720
        YASMFLAGS="-f $objformat $yasm_extra"
2721
        enabled pic               && append YASMFLAGS "-DPIC"
2722
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2723
        case "$objformat" in
2724
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2725
        esac
2726

    
2727
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2728
            die "yasm not found, use --disable-yasm for a crippled build"
2729
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2730
    fi
2731

    
2732
    case "$cpu" in
2733
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2734
            disable fast_clz
2735
        ;;
2736
    esac
2737

    
2738
fi
2739

    
2740
if enabled asm; then
2741
    as=${gas:=$as}
2742
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2743
        $nogas "GNU assembler not found, install gas-preprocessor"
2744
fi
2745

    
2746
check_ldflags -Wl,--as-needed
2747

    
2748
if check_func dlopen; then
2749
    ldl=
2750
elif check_func dlopen -ldl; then
2751
    ldl=-ldl
2752
fi
2753

    
2754
if enabled network; then
2755
    check_type "sys/types.h sys/socket.h" socklen_t
2756
    check_type netdb.h "struct addrinfo"
2757
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2758
    check_type netinet/in.h "struct sockaddr_in6"
2759
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2760
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2761
    # Prefer arpa/inet.h over winsock2
2762
    if check_header arpa/inet.h ; then
2763
        check_func closesocket
2764
    elif check_header winsock2.h ; then
2765
        check_func_headers winsock2.h closesocket -lws2 && \
2766
            network_extralibs="-lws2" || \
2767
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2768
            network_extralibs="-lws2_32"; }
2769
        check_type ws2tcpip.h socklen_t
2770
        check_type ws2tcpip.h "struct addrinfo"
2771
        check_type ws2tcpip.h "struct ipv6_mreq"
2772
        check_type ws2tcpip.h "struct sockaddr_in6"
2773
        check_type ws2tcpip.h "struct sockaddr_storage"
2774
        check_struct winsock2.h "struct sockaddr" sa_len
2775
    else
2776
        disable network
2777
    fi
2778
fi
2779

    
2780
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2781
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2782

    
2783
check_func  fcntl
2784
check_func  fork
2785
check_func  getaddrinfo $network_extralibs
2786
check_func  gethrtime
2787
check_func  getrusage
2788
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2789
check_func  inet_aton $network_extralibs
2790
check_func  isatty
2791
check_func  localtime_r
2792
check_func  ${malloc_prefix}memalign            && enable memalign
2793
check_func  mkstemp
2794
check_func  mmap
2795
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2796
check_func  setrlimit
2797
check_func  strerror_r
2798
check_func  strtok_r
2799
check_func_headers conio.h kbhit
2800
check_func_headers io.h setmode
2801
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2802
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2803
check_func_headers windows.h GetProcessTimes
2804
check_func_headers windows.h MapViewOfFile
2805
check_func_headers windows.h VirtualAlloc
2806

    
2807
check_header dlfcn.h
2808
check_header dxva2api.h
2809
check_header libcrystalhd/libcrystalhd_if.h
2810
check_header malloc.h
2811
check_header poll.h
2812
check_header sys/mman.h
2813
check_header sys/resource.h
2814
check_header sys/select.h
2815
check_header vdpau/vdpau.h
2816
check_header vdpau/vdpau_x11.h
2817
check_header X11/extensions/XvMClib.h
2818

    
2819
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2820

    
2821
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2822
     enabled_any $need_memalign ; then
2823
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2824
fi
2825

    
2826
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2827
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2828

    
2829
# check for some common methods of building with pthread support
2830
# do this before the optional library checks as some of them require pthreads
2831
if ! disabled pthreads && ! enabled w32threads; then
2832
    enable pthreads
2833
    if check_func pthread_create; then
2834
        :
2835
    elif check_func pthread_create -pthread; then
2836
        add_cflags -pthread
2837
        add_extralibs -pthread
2838
    elif check_func pthread_create -pthreads; then
2839
        add_cflags -pthreads
2840
        add_extralibs -pthreads
2841
    elif check_func pthread_create -lpthreadGC2; then
2842
        add_extralibs -lpthreadGC2
2843
    elif ! check_lib pthread.h pthread_create -lpthread; then
2844
        disable pthreads
2845
    fi
2846
fi
2847

    
2848
for thread in $THREADS_LIST; do
2849
    if enabled $thread; then
2850
        test -n "$thread_type" &&
2851
            die "ERROR: Only one thread type must be selected." ||
2852
            thread_type="$thread"
2853
    fi
2854
done
2855

    
2856
check_lib math.h sin -lm
2857
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsCrystalHDVersion -lcrystalhd || disable crystalhd
2858
disabled vaapi || check_lib va/va.h vaInitialize -lva
2859

    
2860
check_mathfunc exp2
2861
check_mathfunc exp2f
2862
check_mathfunc llrint
2863
check_mathfunc llrintf
2864
check_mathfunc log2
2865
check_mathfunc log2f
2866
check_mathfunc lrint
2867
check_mathfunc lrintf
2868
check_mathfunc round
2869
check_mathfunc roundf
2870
check_mathfunc truncf
2871

    
2872
# these are off by default, so fail if requested and not available
2873
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2874
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2875
enabled libdirac   && require_pkg_config dirac                          \
2876
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2877
    "dirac_decoder_init dirac_encoder_init"
2878
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2879
enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2880
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2881
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2882
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2883
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2884
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2885
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2886
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2887
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2888
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2889
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2890
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2891
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2892
enabled libvpx     && {
2893
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2894
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2895
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2896
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2897
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2898
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2899
                        die "ERROR: libx264 version must be >= 0.99."; }
2900
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2901
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2902
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2903

    
2904
# libdc1394 check
2905
if enabled libdc1394; then
2906
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2907
        enable libdc1394_2; } ||
2908
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2909
        enable libdc1394_1; } ||
2910
    die "ERROR: No version of libdc1394 found "
2911
fi
2912

    
2913
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2914
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2915
    enable sdl &&
2916
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2917
fi
2918

    
2919
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2920

    
2921
check_header linux/fb.h
2922
check_header linux/videodev.h
2923
check_header linux/videodev2.h
2924
check_header sys/videoio.h
2925

    
2926
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2927
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2928
# w32api 3.12 had it defined wrong
2929
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2930

    
2931
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2932
{ check_header dev/bktr/ioctl_meteor.h &&
2933
  check_header dev/bktr/ioctl_bt848.h; } ||
2934
{ check_header machine/ioctl_meteor.h &&
2935
  check_header machine/ioctl_bt848.h; } ||
2936
{ check_header dev/video/meteor/ioctl_meteor.h &&
2937
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2938
check_header dev/ic/bt8xx.h
2939

    
2940
check_header sndio.h
2941
check_header sys/soundcard.h
2942
check_header soundcard.h
2943

    
2944
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2945

    
2946
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2947

    
2948
enabled_any sndio_indev sndio_outdev && check_lib2 sndio.h sio_open -lsndio
2949

    
2950
enabled x11grab                         &&
2951
check_header X11/Xlib.h                 &&
2952
check_header X11/extensions/XShm.h      &&
2953
check_header X11/extensions/Xfixes.h    &&
2954
check_func XOpenDisplay -lX11           &&
2955
check_func XShmCreateImage -lX11 -lXext &&
2956
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2957

    
2958
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2959
check_cpp_condition \
2960
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2961
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2962
      disable vdpau; }
2963
fi
2964

    
2965
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2966

    
2967
# add some useful compiler flags if supported
2968
check_cflags -Wdeclaration-after-statement
2969
check_cflags -Wall
2970
check_cflags -Wno-parentheses
2971
check_cflags -Wno-switch
2972
check_cflags -Wdisabled-optimization
2973
check_cflags -Wpointer-arith
2974
check_cflags -Wredundant-decls
2975
check_cflags -Wno-pointer-sign
2976
check_cflags -Wcast-qual
2977
check_cflags -Wwrite-strings
2978
check_cflags -Wtype-limits
2979
check_cflags -Wundef
2980
check_cflags -Wmissing-prototypes
2981
enabled extra_warnings && check_cflags -Winline
2982

    
2983
# add some linker flags
2984
check_ldflags -Wl,--warn-common
2985
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'
2986
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2987

    
2988
echo "X{};" > $TMPV
2989
if test_ldflags -Wl,--version-script,$TMPV; then
2990
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2991
    check_cc <<EOF && enable symver_asm_label
2992
void ff_foo(void) __asm__ ("av_foo@VERSION");
2993
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2994
EOF
2995
    check_cc <<EOF && enable symver_gnu_asm
2996
__asm__(".symver ff_foo,av_foo@VERSION");
2997
void ff_foo(void) {}
2998
EOF
2999
fi
3000

    
3001
if enabled small; then
3002
    add_cflags $size_cflags
3003
    optimizations="small"
3004
elif enabled optimizations; then
3005
    add_cflags $speed_cflags
3006
else
3007
    add_cflags $noopt_cflags
3008
fi
3009
check_cflags -fno-math-errno
3010
check_cflags -fno-signed-zeros
3011

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

    
3063
enabled_any $THREADS_LIST      && enable threads
3064

    
3065
check_deps $CONFIG_LIST       \
3066
           $CONFIG_EXTRA      \
3067
           $HAVE_LIST         \
3068
           $DECODER_LIST      \
3069
           $ENCODER_LIST      \
3070
           $HWACCEL_LIST      \
3071
           $PARSER_LIST       \
3072
           $BSF_LIST          \
3073
           $DEMUXER_LIST      \
3074
           $MUXER_LIST        \
3075
           $FILTER_LIST       \
3076
           $INDEV_LIST        \
3077
           $OUTDEV_LIST       \
3078
           $PROTOCOL_LIST     \
3079
           $ACODEC_TESTS      \
3080
           $VCODEC_TESTS      \
3081
           $LAVF_TESTS        \
3082
           $LAVFI_TESTS       \
3083
           $SEEK_TESTS        \
3084

    
3085
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3086

    
3087
echo "install prefix            $prefix"
3088
echo "source path               $source_path"
3089
echo "C compiler                $cc"
3090
echo "ARCH                      $arch ($cpu)"
3091
if test "$build_suffix" != ""; then
3092
    echo "build suffix              $build_suffix"
3093
fi
3094
if test "$extra_version" != ""; then
3095
    echo "version string suffix     $extra_version"
3096
fi
3097
echo "big-endian                ${bigendian-no}"
3098
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3099
if enabled x86; then
3100
    echo "yasm                      ${yasm-no}"
3101
    echo "MMX enabled               ${mmx-no}"
3102
    echo "MMX2 enabled              ${mmx2-no}"
3103
    echo "3DNow! enabled            ${amd3dnow-no}"
3104
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3105
    echo "SSE enabled               ${sse-no}"
3106
    echo "SSSE3 enabled             ${ssse3-no}"
3107
    echo "CMOV enabled              ${cmov-no}"
3108
    echo "CMOV is fast              ${fast_cmov-no}"
3109
    echo "EBX available             ${ebx_available-no}"
3110
    echo "EBP available             ${ebp_available-no}"
3111
    echo "10 operands supported     ${ten_operands-no}"
3112
fi
3113
if enabled arm; then
3114
    echo "ARMv5TE enabled           ${armv5te-no}"
3115
    echo "ARMv6 enabled             ${armv6-no}"
3116
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3117
    echo "ARM VFP enabled           ${armvfp-no}"
3118
    echo "IWMMXT enabled            ${iwmmxt-no}"
3119
    echo "NEON enabled              ${neon-no}"
3120
fi
3121
if enabled mips; then
3122
    echo "MMI enabled               ${mmi-no}"
3123
fi
3124
if enabled ppc; then
3125
    echo "AltiVec enabled           ${altivec-no}"
3126
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3127
    echo "dcbzl available           ${dcbzl-no}"
3128
fi
3129
if enabled sparc; then
3130
    echo "VIS enabled               ${vis-no}"
3131
fi
3132
echo "debug symbols             ${debug-no}"
3133
echo "strip symbols             ${stripping-no}"
3134
echo "optimizations             ${optimizations-no}"
3135
echo "static                    ${static-no}"
3136
echo "shared                    ${shared-no}"
3137
echo "postprocessing support    ${postproc-no}"
3138
echo "new filter support        ${avfilter-no}"
3139
echo "network support           ${network-no}"
3140
echo "threading support         ${thread_type-no}"
3141
echo "SDL support               ${sdl-no}"
3142
echo "Sun medialib support      ${mlib-no}"
3143
echo "AVISynth enabled          ${avisynth-no}"
3144
echo "frei0r enabled            ${frei0r-no}"
3145
echo "libdc1394 support         ${libdc1394-no}"
3146
echo "libdirac enabled          ${libdirac-no}"
3147
echo "libfaac enabled           ${libfaac-no}"
3148
echo "libgsm enabled            ${libgsm-no}"
3149
echo "libmp3lame enabled        ${libmp3lame-no}"
3150
echo "libnut enabled            ${libnut-no}"
3151
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3152
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3153
echo "libopencv support         ${libopencv-no}"
3154
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3155
echo "librtmp enabled           ${librtmp-no}"
3156
echo "libschroedinger enabled   ${libschroedinger-no}"
3157
echo "libspeex enabled          ${libspeex-no}"
3158
echo "libtheora enabled         ${libtheora-no}"
3159
echo "libvorbis enabled         ${libvorbis-no}"
3160
echo "libvpx enabled            ${libvpx-no}"
3161
echo "libx264 enabled           ${libx264-no}"
3162
echo "libxavs enabled           ${libxavs-no}"
3163
echo "libxvid enabled           ${libxvid-no}"
3164
echo "zlib enabled              ${zlib-no}"
3165
echo "bzlib enabled             ${bzlib-no}"
3166
echo
3167

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

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

    
3186
echo "License: $license"
3187

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

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

    
3229
enabled stripping || strip="echo skipping strip"
3230

    
3231
config_files="$TMPH config.mak"
3232

    
3233
cat > config.mak <<EOF
3234
# Automatically generated by configure - do not modify!
3235
ifndef FFMPEG_CONFIG_MAK
3236
FFMPEG_CONFIG_MAK=1
3237
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3238
prefix=$prefix
3239
LIBDIR=\$(DESTDIR)$libdir
3240
SHLIBDIR=\$(DESTDIR)$shlibdir
3241
INCDIR=\$(DESTDIR)$incdir
3242
BINDIR=\$(DESTDIR)$bindir
3243
DATADIR=\$(DESTDIR)$datadir
3244
MANDIR=\$(DESTDIR)$mandir
3245
SRC_PATH="$source_path"
3246
SRC_PATH_BARE=$source_path
3247
BUILD_ROOT="$PWD"
3248
CC_IDENT=$cc_ident
3249
ARCH=$arch
3250
CC=$cc
3251
AS=$as
3252
LD=$ld
3253
DEPCC=$dep_cc
3254
YASM=$yasmexe
3255
YASMDEP=$yasmexe
3256
AR=$ar
3257
RANLIB=$ranlib
3258
CP=cp -p
3259
LN_S=$ln_s
3260
STRIP=$strip
3261
CPPFLAGS=$CPPFLAGS
3262
CFLAGS=$CFLAGS
3263
ASFLAGS=$ASFLAGS
3264
CC_O=$CC_O
3265
DLLTOOL=$dlltool
3266
LDFLAGS=$LDFLAGS
3267
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3268
SHFLAGS=$SHFLAGS
3269
YASMFLAGS=$YASMFLAGS
3270
BUILDSUF=$build_suffix
3271
FULLNAME=$FULLNAME
3272
LIBPREF=$LIBPREF
3273
LIBSUF=$LIBSUF
3274
LIBNAME=$LIBNAME
3275
SLIBPREF=$SLIBPREF
3276
SLIBSUF=$SLIBSUF
3277
EXESUF=$EXESUF
3278
EXTRA_VERSION=$extra_version
3279
DEPFLAGS=$DEPFLAGS
3280
CCDEP=$CCDEP
3281
ASDEP=$ASDEP
3282
CC_DEPFLAGS=$CC_DEPFLAGS
3283
AS_DEPFLAGS=$AS_DEPFLAGS
3284
HOSTCC=$host_cc
3285
HOSTCFLAGS=$host_cflags
3286
HOSTEXESUF=$HOSTEXESUF
3287
HOSTLDFLAGS=$host_ldflags
3288
HOSTLIBS=$host_libs
3289
TARGET_EXEC=$target_exec
3290
TARGET_PATH=$target_path
3291
SDL_LIBS=$sdl_libs
3292
SDL_CFLAGS=$sdl_cflags
3293
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3294
EXTRALIBS=$extralibs
3295
INSTALL=install
3296
LIBTARGET=${LIBTARGET}
3297
SLIBNAME=${SLIBNAME}
3298
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3299
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3300
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3301
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3302
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3303
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3304
SAMPLES=${samples:-\$(FATE_SAMPLES)}
3305
EOF
3306

    
3307
get_version(){
3308
    name=$1
3309
    file=$source_path/$2
3310
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3311
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3312
    lcname=$(tolower $name)
3313
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3314
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3315
}
3316

    
3317
get_version LIBSWSCALE  libswscale/swscale.h
3318
get_version LIBPOSTPROC libpostproc/postprocess.h
3319
get_version LIBAVCODEC  libavcodec/version.h
3320
get_version LIBAVDEVICE libavdevice/avdevice.h
3321
get_version LIBAVFORMAT libavformat/version.h
3322
get_version LIBAVUTIL   libavutil/avutil.h
3323
get_version LIBAVFILTER libavfilter/avfilter.h
3324

    
3325
cat > $TMPH <<EOF
3326
/* Automatically generated by configure - do not modify! */
3327
#ifndef FFMPEG_CONFIG_H
3328
#define FFMPEG_CONFIG_H
3329
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3330
#define FFMPEG_LICENSE "$(c_escape $license)"
3331
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3332
#define CC_TYPE "$cc_type"
3333
#define CC_VERSION $cc_version
3334
#define restrict $_restrict
3335
#define EXTERN_PREFIX "${extern_prefix}"
3336
#define EXTERN_ASM ${extern_prefix}
3337
#define SLIBSUF "$SLIBSUF"
3338
EOF
3339

    
3340
test -n "$malloc_prefix" &&
3341
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3342

    
3343
if enabled small || disabled optimizations; then
3344
    echo "#undef  av_always_inline"  >> $TMPH
3345
    if enabled small; then
3346
        echo "#define av_always_inline inline"  >> $TMPH
3347
    else
3348
        echo "#define av_always_inline av_unused"  >> $TMPH
3349
    fi
3350
fi
3351

    
3352
if enabled yasm; then
3353
    append config_files $TMPASM
3354
    printf '' >$TMPASM
3355
fi
3356

    
3357
print_config ARCH_   "$config_files" $ARCH_LIST
3358
print_config HAVE_   "$config_files" $HAVE_LIST
3359
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3360
                                     $CONFIG_EXTRA      \
3361
                                     $DECODER_LIST      \
3362
                                     $ENCODER_LIST      \
3363
                                     $HWACCEL_LIST      \
3364
                                     $PARSER_LIST       \
3365
                                     $BSF_LIST          \
3366
                                     $DEMUXER_LIST      \
3367
                                     $MUXER_LIST        \
3368
                                     $FILTER_LIST       \
3369
                                     $PROTOCOL_LIST     \
3370
                                     $INDEV_LIST        \
3371
                                     $OUTDEV_LIST       \
3372

    
3373
cat >>config.mak <<EOF
3374
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3375
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3376
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3377
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3378
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3379
EOF
3380

    
3381
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3382
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3383

    
3384
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3385
cp_if_changed $TMPH config.h
3386
touch .config
3387

    
3388
enabled yasm && cp_if_changed $TMPASM config.asm
3389

    
3390
cat > $TMPH <<EOF
3391
/* Generated by ffconf */
3392
#ifndef AVUTIL_AVCONFIG_H
3393
#define AVUTIL_AVCONFIG_H
3394
EOF
3395

    
3396
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3397

    
3398
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3399

    
3400
cp_if_changed $TMPH libavutil/avconfig.h
3401

    
3402
test -n "$WARNINGS" && printf "\n$WARNINGS"
3403

    
3404
# build pkg-config files
3405

    
3406
pkgconfig_generate(){
3407
name=$1
3408
shortname=${name#lib}${build_suffix}
3409
comment=$2
3410
version=$3
3411
libs=$4
3412
requires=$5
3413
enabled ${name#lib} || return 0
3414
cat <<EOF > $name/$name.pc
3415
prefix=$prefix
3416
exec_prefix=\${prefix}
3417
libdir=$libdir
3418
includedir=$incdir
3419

    
3420
Name: $name
3421
Description: $comment
3422
Version: $version
3423
Requires: $(enabled shared || echo $requires)
3424
Requires.private: $(enabled shared && echo $requires)
3425
Conflicts:
3426
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3427
Libs.private: $(enabled shared && echo $libs)
3428
Cflags: -I\${includedir}
3429
EOF
3430
cat <<EOF > $name/$name-uninstalled.pc
3431
prefix=
3432
exec_prefix=
3433
libdir=\${pcfiledir}
3434
includedir=${source_path}
3435

    
3436
Name: $name
3437
Description: $comment
3438
Version: $version
3439
Requires: $requires
3440
Conflicts:
3441
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3442
Cflags: -I\${includedir}
3443
EOF
3444
}
3445

    
3446
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3447
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3448
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3449
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3450
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3451
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3452
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"