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

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

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

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

    
74
Configuration options:
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  --disable-static         do not build static libraries [no]
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  --enable-shared          build shared libraries [no]
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  --enable-gpl             allow use of GPL code, the resulting libs
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                           and binaries will be under GPL [no]
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  --enable-version3        upgrade (L)GPL to version 3 [no]
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  --enable-nonfree         allow use of nonfree code, the resulting libs
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                           and binaries will be unredistributable [no]
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  --disable-doc            do not build documentation
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  --disable-ffmpeg         disable ffmpeg build
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  --disable-ffplay         disable ffplay build
85
  --disable-ffprobe        disable ffprobe build
86
  --disable-ffserver       disable ffserver build
87
  --disable-avdevice       disable libavdevice build
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  --disable-avcodec        disable libavcodec build
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  --disable-avformat       disable libavformat build
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  --disable-swscale        disable libswscale build
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  --enable-postproc        enable GPLed postprocessing support [no]
92
  --disable-avfilter       disable video filter support [no]
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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]
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  --enable-gray            enable full grayscale support (slower color)
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  --disable-swscale-alpha  disable alpha channel support in swscale
100
  --disable-fastdiv        disable table-based division
101
  --enable-small           optimize for size instead of speed
102
  --disable-aandct         disable AAN DCT code
103
  --disable-dct            disable DCT code
104
  --disable-fft            disable FFT code
105
  --disable-golomb         disable Golomb code
106
  --disable-huffman        disable Huffman code
107
  --disable-lpc            disable LPC code
108
  --disable-mdct           disable MDCT code
109
  --disable-rdft           disable RDFT code
110
  --disable-vaapi          disable VAAPI code
111
  --disable-vdpau          disable VDPAU code
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  --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
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  --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 $extralibs $libs
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
    socklen_t
1102
    soundcard_h
1103
    poll_h
1104
    setrlimit
1105
    strerror_r
1106
    strtok_r
1107
    struct_addrinfo
1108
    struct_ipv6_mreq
1109
    struct_sockaddr_in6
1110
    struct_sockaddr_sa_len
1111
    struct_sockaddr_storage
1112
    symver
1113
    symver_gnu_asm
1114
    symver_asm_label
1115
    sys_mman_h
1116
    sys_resource_h
1117
    sys_select_h
1118
    sys_soundcard_h
1119
    sys_videoio_h
1120
    ten_operands
1121
    threads
1122
    truncf
1123
    vfp_args
1124
    VirtualAlloc
1125
    winsock2_h
1126
    xform_asm
1127
    xmm_clobbers
1128
    yasm
1129
"
1130

    
1131
# options emitted with CONFIG_ prefix but not available on command line
1132
CONFIG_EXTRA="
1133
    avutil
1134
    gplv3
1135
    lgplv3
1136
"
1137

    
1138
CMDLINE_SELECT="
1139
    $ARCH_EXT_LIST
1140
    $CONFIG_LIST
1141
    $THREADS_LIST
1142
    asm
1143
    cross_compile
1144
    debug
1145
    extra_warnings
1146
    logging
1147
    optimizations
1148
    stripping
1149
    symver
1150
    yasm
1151
"
1152

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

    
1163
CMDLINE_SET="
1164
    $PATHS_LIST
1165
    ar
1166
    arch
1167
    as
1168
    build_suffix
1169
    cc
1170
    cpu
1171
    cross_prefix
1172
    dep_cc
1173
    extra_version
1174
    host_cc
1175
    host_cflags
1176
    host_ldflags
1177
    host_libs
1178
    host_os
1179
    ld
1180
    logfile
1181
    malloc_prefix
1182
    nm
1183
    pkg_config
1184
    samples
1185
    source_path
1186
    strip
1187
    sysinclude
1188
    sysroot
1189
    target_exec
1190
    target_os
1191
    target_path
1192
"
1193

    
1194
CMDLINE_APPEND="
1195
    extra_cflags
1196
"
1197

    
1198
# code dependency declarations
1199

    
1200
# architecture extensions
1201

    
1202
armv5te_deps="arm"
1203
armv6_deps="arm"
1204
armv6t2_deps="arm"
1205
armvfp_deps="arm"
1206
iwmmxt_deps="arm"
1207
neon_deps="arm"
1208

    
1209
mmi_deps="mips"
1210

    
1211
altivec_deps="ppc"
1212
ppc4xx_deps="ppc"
1213

    
1214
vis_deps="sparc"
1215

    
1216
x86_64_suggest="cmov fast_cmov"
1217
amd3dnow_deps="mmx"
1218
amd3dnowext_deps="amd3dnow"
1219
mmx_deps="x86"
1220
mmx2_deps="mmx"
1221
sse_deps="mmx"
1222
ssse3_deps="sse"
1223
avx_deps="ssse3"
1224

    
1225
aligned_stack_if_any="ppc x86"
1226
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1227
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1228
fast_unaligned_if_any="armv6 ppc x86"
1229

    
1230
need_memalign="altivec neon sse"
1231
inline_asm_deps="!tms470"
1232

    
1233
symver_if_any="symver_asm_label symver_gnu_asm"
1234

    
1235
# subsystems
1236
dct_select="rdft"
1237
mdct_select="fft"
1238
rdft_select="fft"
1239

    
1240
# decoders / encoders / hardware accelerators
1241
aac_decoder_select="mdct rdft sinewin"
1242
aac_encoder_select="mdct sinewin"
1243
aac_latm_decoder_select="aac_decoder aac_latm_parser"
1244
ac3_decoder_select="mdct ac3_parser"
1245
ac3_encoder_select="mdct ac3dsp"
1246
ac3_fixed_encoder_select="ac3dsp"
1247
alac_encoder_select="lpc"
1248
amrnb_decoder_select="lsp"
1249
amrwb_decoder_select="lsp"
1250
atrac1_decoder_select="mdct sinewin"
1251
atrac3_decoder_select="mdct"
1252
binkaudio_dct_decoder_select="mdct rdft dct"
1253
binkaudio_rdft_decoder_select="mdct rdft"
1254
cavs_decoder_select="golomb"
1255
cook_decoder_select="mdct sinewin"
1256
cscd_decoder_suggest="zlib"
1257
dca_decoder_select="mdct"
1258
dnxhd_encoder_select="aandct"
1259
dxa_decoder_select="zlib"
1260
eac3_decoder_select="ac3_decoder"
1261
eamad_decoder_select="aandct"
1262
eatgq_decoder_select="aandct"
1263
eatqi_decoder_select="aandct"
1264
ffv1_decoder_select="golomb"
1265
flac_decoder_select="golomb"
1266
flac_encoder_select="golomb lpc"
1267
flashsv_decoder_select="zlib"
1268
flashsv_encoder_select="zlib"
1269
flv_decoder_select="h263_decoder"
1270
flv_encoder_select="h263_encoder"
1271
fraps_decoder_select="huffman"
1272
h261_encoder_select="aandct"
1273
h263_decoder_select="h263_parser"
1274
h263_encoder_select="aandct"
1275
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1276
h263i_decoder_select="h263_decoder"
1277
h263p_encoder_select="h263_encoder"
1278
h264_decoder_select="golomb h264dsp h264pred"
1279
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf"
1280
h264_dxva2_hwaccel_deps="dxva2api_h"
1281
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
1282
h264_vaapi_hwaccel_select="vaapi"
1283
h264_vdpau_decoder_select="vdpau h264_decoder"
1284
imc_decoder_select="fft mdct"
1285
jpegls_decoder_select="golomb"
1286
jpegls_encoder_select="golomb"
1287
ljpeg_encoder_select="aandct"
1288
loco_decoder_select="golomb"
1289
mjpeg_encoder_select="aandct"
1290
mlp_decoder_select="mlp_parser"
1291
mp1float_decoder_select="dct"
1292
mp2float_decoder_select="dct"
1293
mp3adufloat_decoder_select="dct"
1294
mp3float_decoder_select="dct"
1295
mp3on4float_decoder_select="dct"
1296
mpeg1video_encoder_select="aandct"
1297
mpeg2video_encoder_select="aandct"
1298
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1299
mpeg4_encoder_select="h263_encoder"
1300
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1301
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1302
mpeg2_crystalhd_decoder_select="crystalhd"
1303
mpeg2_dxva2_hwaccel_deps="dxva2api_h"
1304
mpeg2_dxva2_hwaccel_select="dxva2 mpeg2video_decoder"
1305
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1306
mpeg4_crystalhd_decoder_select="crystalhd"
1307
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1308
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1309
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1310
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1311
msmpeg4_crystalhd_decoder_select="crystalhd"
1312
msmpeg4v1_decoder_select="h263_decoder"
1313
msmpeg4v1_encoder_select="h263_encoder"
1314
msmpeg4v2_decoder_select="h263_decoder"
1315
msmpeg4v2_encoder_select="h263_encoder"
1316
msmpeg4v3_decoder_select="h263_decoder"
1317
msmpeg4v3_encoder_select="h263_encoder"
1318
nellymoser_decoder_select="mdct sinewin"
1319
nellymoser_encoder_select="mdct sinewin"
1320
png_decoder_select="zlib"
1321
png_encoder_select="zlib"
1322
qcelp_decoder_select="lsp"
1323
qdm2_decoder_select="mdct rdft"
1324
ra_144_encoder_select="lpc"
1325
rv10_decoder_select="h263_decoder"
1326
rv10_encoder_select="h263_encoder"
1327
rv20_decoder_select="h263_decoder"
1328
rv20_encoder_select="h263_encoder"
1329
rv30_decoder_select="golomb h264pred"
1330
rv40_decoder_select="golomb h264pred"
1331
shorten_decoder_select="golomb"
1332
sipr_decoder_select="lsp"
1333
snow_decoder_select="dwt"
1334
snow_encoder_select="aandct dwt"
1335
sonic_decoder_select="golomb"
1336
sonic_encoder_select="golomb"
1337
sonic_ls_encoder_select="golomb"
1338
svq1_encoder_select="aandct"
1339
svq3_decoder_select="golomb h264dsp h264pred"
1340
svq3_decoder_suggest="zlib"
1341
theora_decoder_select="vp3_decoder"
1342
tiff_decoder_suggest="zlib"
1343
tiff_encoder_suggest="zlib"
1344
truehd_decoder_select="mlp_decoder"
1345
tscc_decoder_select="zlib"
1346
twinvq_decoder_select="mdct lsp sinewin"
1347
vc1_decoder_select="h263_decoder"
1348
vc1_crystalhd_decoder_select="crystalhd"
1349
vc1_dxva2_hwaccel_deps="dxva2api_h DXVA_PictureParameters_wDecodedPictureIndex"
1350
vc1_dxva2_hwaccel_select="dxva2 vc1_decoder"
1351
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1352
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1353
vorbis_decoder_select="mdct"
1354
vorbis_encoder_select="mdct"
1355
vp6_decoder_select="huffman"
1356
vp6a_decoder_select="vp6_decoder"
1357
vp6f_decoder_select="vp6_decoder"
1358
vp8_decoder_select="h264pred"
1359
wmapro_decoder_select="mdct sinewin"
1360
wmav1_decoder_select="mdct sinewin"
1361
wmav1_encoder_select="mdct sinewin"
1362
wmav2_decoder_select="mdct sinewin"
1363
wmav2_encoder_select="mdct sinewin"
1364
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
1365
wmv1_decoder_select="h263_decoder"
1366
wmv1_encoder_select="h263_encoder"
1367
wmv2_decoder_select="h263_decoder"
1368
wmv2_encoder_select="h263_encoder"
1369
wmv3_decoder_select="vc1_decoder"
1370
wmv3_crystalhd_decoder_select="crystalhd"
1371
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
1372
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1373
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1374
zlib_decoder_select="zlib"
1375
zlib_encoder_select="zlib"
1376
zmbv_decoder_select="zlib"
1377
zmbv_encoder_select="zlib"
1378

    
1379
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
1380
vaapi_deps="va_va_h"
1381
vdpau_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1382

    
1383
# parsers
1384
h264_parser_select="golomb h264dsp h264pred"
1385

    
1386
# external libraries
1387
libdirac_decoder_deps="libdirac !libschroedinger"
1388
libdirac_encoder_deps="libdirac"
1389
libfaac_encoder_deps="libfaac"
1390
libgsm_decoder_deps="libgsm"
1391
libgsm_encoder_deps="libgsm"
1392
libgsm_ms_decoder_deps="libgsm"
1393
libgsm_ms_encoder_deps="libgsm"
1394
libmp3lame_encoder_deps="libmp3lame"
1395
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1396
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1397
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1398
libopenjpeg_decoder_deps="libopenjpeg"
1399
libschroedinger_decoder_deps="libschroedinger"
1400
libschroedinger_encoder_deps="libschroedinger"
1401
libspeex_decoder_deps="libspeex"
1402
libtheora_encoder_deps="libtheora"
1403
libvorbis_encoder_deps="libvorbis"
1404
libvpx_decoder_deps="libvpx"
1405
libvpx_encoder_deps="libvpx"
1406
libx264_encoder_deps="libx264"
1407
libxavs_encoder_deps="libxavs"
1408
libxvid_encoder_deps="libxvid"
1409

    
1410
# demuxers / muxers
1411
ac3_demuxer_select="ac3_parser"
1412
asf_stream_muxer_select="asf_muxer"
1413
avisynth_demuxer_deps="avisynth"
1414
dirac_demuxer_select="dirac_parser"
1415
eac3_demuxer_select="ac3_parser"
1416
flac_demuxer_select="flac_parser"
1417
ipod_muxer_select="mov_muxer"
1418
libnut_demuxer_deps="libnut"
1419
libnut_muxer_deps="libnut"
1420
matroska_audio_muxer_select="matroska_muxer"
1421
matroska_demuxer_suggest="zlib bzlib"
1422
mov_demuxer_suggest="zlib"
1423
mp3_demuxer_select="mpegaudio_parser"
1424
mp4_muxer_select="mov_muxer"
1425
mpegtsraw_demuxer_select="mpegts_demuxer"
1426
mxf_d10_muxer_select="mxf_muxer"
1427
ogg_demuxer_select="golomb"
1428
psp_muxer_select="mov_muxer"
1429
rtp_demuxer_select="sdp_demuxer"
1430
rtpdec_select="asf_demuxer rm_demuxer rtp_protocol mpegts_demuxer mov_demuxer"
1431
rtsp_demuxer_select="http_protocol rtpdec"
1432
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol"
1433
sap_demuxer_select="sdp_demuxer"
1434
sap_muxer_select="rtp_muxer rtp_protocol"
1435
sdp_demuxer_select="rtpdec"
1436
spdif_muxer_select="aac_parser"
1437
tg2_muxer_select="mov_muxer"
1438
tgp_muxer_select="mov_muxer"
1439
w64_demuxer_deps="wav_demuxer"
1440

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

    
1458
# protocols
1459
gopher_protocol_deps="network"
1460
http_protocol_deps="network"
1461
http_protocol_select="tcp_protocol"
1462
mmsh_protocol_select="http_protocol"
1463
mmst_protocol_deps="network"
1464
rtmp_protocol_select="tcp_protocol"
1465
rtp_protocol_select="udp_protocol"
1466
tcp_protocol_deps="network"
1467
udp_protocol_deps="network"
1468

    
1469
# filters
1470
blackframe_filter_deps="gpl"
1471
cropdetect_filter_deps="gpl"
1472
drawtext_filter_deps="libfreetype"
1473
frei0r_filter_deps="frei0r dlopen strtok_r"
1474
frei0r_src_filter_deps="frei0r dlopen strtok_r"
1475
hqdn3d_filter_deps="gpl"
1476
mp_filter_deps="gpl"
1477
ocv_filter_deps="libopencv"
1478
scale_filter_deps="swscale"
1479
yadif_filter_deps="gpl"
1480

    
1481
# libraries
1482
avdevice_deps="avcodec avformat"
1483
avformat_deps="avcodec"
1484

    
1485
# programs
1486
ffmpeg_deps="avcodec avformat swscale"
1487
ffmpeg_select="buffer_filter"
1488
ffplay_deps="avcodec avformat swscale sdl"
1489
ffplay_select="rdft"
1490
ffprobe_deps="avcodec avformat"
1491
ffserver_deps="avformat ffm_muxer fork rtp_protocol rtsp_demuxer"
1492
ffserver_extralibs='$ldl'
1493

    
1494
doc_deps="texi2html"
1495

    
1496
# tests
1497

    
1498
test_deps(){
1499
    suf1=$1
1500
    suf2=$2
1501
    shift 2
1502
    for v; do
1503
        dep=${v%=*}
1504
        tests=${v#*=}
1505
        for name in ${tests}; do
1506
            eval ${name}_test_deps="'${dep}$suf1 ${dep}$suf2'"
1507
        done
1508
    done
1509
}
1510

    
1511
set_ne_test_deps(){
1512
    eval ${1}_be_test_deps="bigendian"
1513
    eval ${1}_le_test_deps="!bigendian"
1514
}
1515

    
1516
test_deps _encoder _decoder                                             \
1517
    adpcm_g726=g726                                                     \
1518
    adpcm_ima_qt                                                        \
1519
    adpcm_ima_wav                                                       \
1520
    adpcm_ms                                                            \
1521
    adpcm_swf                                                           \
1522
    adpcm_yamaha=adpcm_yam                                              \
1523
    alac                                                                \
1524
    asv1                                                                \
1525
    asv2                                                                \
1526
    bmp                                                                 \
1527
    dnxhd="dnxhd_1080i dnxhd_720p dnxhd_720p_rd"                        \
1528
    dvvideo="dv dv50"                                                   \
1529
    ffv1                                                                \
1530
    flac                                                                \
1531
    flashsv                                                             \
1532
    flv                                                                 \
1533
    gif                                                                 \
1534
    h261                                                                \
1535
    h263="h263 h263p"                                                   \
1536
    huffyuv                                                             \
1537
    jpegls                                                              \
1538
    mjpeg="jpg mjpeg ljpeg"                                             \
1539
    mp2                                                                 \
1540
    mpeg1video="mpeg mpeg1b"                                            \
1541
    mpeg2video="mpeg2 mpeg2thread"                                      \
1542
    mpeg4="mpeg4 mpeg4adv mpeg4nr mpeg4thread error rc"                 \
1543
    msmpeg4v3=msmpeg4                                                   \
1544
    msmpeg4v2                                                           \
1545
    pbm=pbmpipe                                                         \
1546
    pcx                                                                 \
1547
    pgm="pgm pgmpipe"                                                   \
1548
    png                                                                 \
1549
    ppm="ppm ppmpipe"                                                   \
1550
    rawvideo="rgb yuv"                                                  \
1551
    roq                                                                 \
1552
    rv10                                                                \
1553
    rv20                                                                \
1554
    sgi                                                                 \
1555
    snow="snow snowll"                                                  \
1556
    svq1                                                                \
1557
    targa=tga                                                           \
1558
    tiff                                                                \
1559
    wmav1                                                               \
1560
    wmav2                                                               \
1561
    wmv1                                                                \
1562
    wmv2                                                                \
1563

    
1564
test_deps _muxer _demuxer                                               \
1565
    aiff                                                                \
1566
    pcm_alaw=alaw                                                       \
1567
    asf                                                                 \
1568
    au                                                                  \
1569
    avi                                                                 \
1570
    dv=dv_fmt                                                           \
1571
    ffm                                                                 \
1572
    flv=flv_fmt                                                         \
1573
    gxf                                                                 \
1574
    matroska=mkv                                                        \
1575
    mmf                                                                 \
1576
    mov                                                                 \
1577
    pcm_mulaw=mulaw                                                     \
1578
    mxf                                                                 \
1579
    nut                                                                 \
1580
    ogg                                                                 \
1581
    rawvideo=pixfmt                                                     \
1582
    rm                                                                  \
1583
    swf                                                                 \
1584
    mpegts=ts                                                           \
1585
    voc                                                                 \
1586
    wav                                                                 \
1587
    yuv4mpegpipe=yuv4mpeg                                               \
1588

    
1589
ac3_fixed_test_deps="ac3_fixed_encoder ac3_decoder rm_muxer rm_demuxer"
1590
mpg_test_deps="mpeg1system_muxer mpegps_demuxer"
1591

    
1592
set_ne_test_deps pixdesc
1593
set_ne_test_deps pixfmts_copy
1594
set_ne_test_deps pixfmts_crop
1595
set_ne_test_deps pixfmts_hflip
1596
set_ne_test_deps pixfmts_null
1597
set_ne_test_deps pixfmts_pad
1598
set_ne_test_deps pixfmts_scale
1599
set_ne_test_deps pixfmts_vflip
1600

    
1601
# default parameters
1602

    
1603
logfile="config.log"
1604

    
1605
# installation paths
1606
prefix_default="/usr/local"
1607
bindir_default='${prefix}/bin'
1608
datadir_default='${prefix}/share/ffmpeg'
1609
incdir_default='${prefix}/include'
1610
libdir_default='${prefix}/lib'
1611
mandir_default='${prefix}/share/man'
1612
shlibdir_default="$libdir_default"
1613

    
1614
# toolchain
1615
ar_default="ar"
1616
cc_default="gcc"
1617
cc_version=\"unknown\"
1618
host_cc_default="gcc"
1619
ln_s="ln -sf"
1620
nm_default="nm"
1621
objformat="elf"
1622
pkg_config_default=pkg-config
1623
ranlib="ranlib"
1624
strip_default="strip"
1625
yasmexe="yasm"
1626
nogas=":"
1627

    
1628
nm_opts='-g'
1629

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

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

    
1638
# configurable options
1639
enable avcodec
1640
enable avdevice
1641
enable avfilter
1642
enable avformat
1643
enable avutil
1644
enable asm
1645
enable debug
1646
enable doc
1647
enable fastdiv
1648
enable ffmpeg
1649
enable ffplay
1650
enable ffprobe
1651
enable ffserver
1652
enable mpegaudio_hp
1653
enable network
1654
enable optimizations
1655
enable protocols
1656
enable static
1657
enable stripping
1658
enable swscale
1659
enable swscale_alpha
1660

    
1661
# build settings
1662
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1663
FFSERVERLDFLAGS=-Wl,-E
1664
LIBPREF="lib"
1665
LIBSUF=".a"
1666
FULLNAME='$(NAME)$(BUILDSUF)'
1667
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1668
SLIBPREF="lib"
1669
SLIBSUF=".so"
1670
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1671
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1672
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1673
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1674

    
1675
CC_O='-o $@'
1676

    
1677
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1678
host_libs='-lm'
1679

    
1680
target_path='$(CURDIR)'
1681

    
1682
# since the object filename is not given with the -MM flag, the compiler
1683
# is only able to print the basename, and we must add the path ourselves
1684
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1685
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1686

    
1687
# find source path
1688
source_path="$(dirname "$0")"
1689
enable source_path_used
1690
if test -f configure; then
1691
    source_path="$(pwd)"
1692
    disable source_path_used
1693
else
1694
    source_path="$(cd "$source_path"; pwd)"
1695
    echo "$source_path" | grep -q '[[:blank:]]' &&
1696
        die "Out of tree builds are impossible with whitespace in source path."
1697
    test -e "$source_path/config.h" &&
1698
        die "Out of tree builds are impossible with config.h in source dir."
1699
fi
1700

    
1701
for v in "$@"; do
1702
    r=${v#*=}
1703
    l=${v%"$r"}
1704
    r=$(sh_quote "$r")
1705
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1706
done
1707

    
1708
find_things(){
1709
    thing=$1
1710
    pattern=$2
1711
    file=$source_path/$3
1712
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1713
}
1714

    
1715
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1716
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1717
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1718
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1719
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1720
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1721
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1722
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1723
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1724
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1725
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1726

    
1727
find_tests(){
1728
    map "echo ${2}\${v}_test" $(ls "$source_path"/tests/ref/$1 | grep -v '[^-a-z0-9_]')
1729
}
1730

    
1731
ACODEC_TESTS=$(find_tests acodec)
1732
VCODEC_TESTS=$(find_tests vsynth1)
1733
LAVF_TESTS=$(find_tests lavf)
1734
LAVFI_TESTS=$(find_tests lavfi)
1735
SEEK_TESTS=$(find_tests seek seek_)
1736

    
1737
pcm_test_deps=$(map 'echo ${v%_*}_decoder $v' $(filter pcm_* $ENCODER_LIST))
1738

    
1739
for n in $COMPONENT_LIST; do
1740
    v=$(toupper ${n%s})_LIST
1741
    eval enable \$$v
1742
    eval ${n}_if_any="\$$v"
1743
done
1744

    
1745
enable $ARCH_EXT_LIST $ACODEC_TESTS $VCODEC_TESTS $LAVF_TESTS $LAVFI_TESTS $SEEK_TESTS
1746

    
1747
die_unknown(){
1748
    echo "Unknown option \"$1\"."
1749
    echo "See $0 --help for available options."
1750
    exit 1
1751
}
1752

    
1753
show_list() {
1754
    suffix=_$1
1755
    shift
1756
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort | pr -3 -t
1757
    exit 0
1758
}
1759

    
1760
for opt do
1761
    optval="${opt#*=}"
1762
    case "$opt" in
1763
    --extra-ldflags=*) add_ldflags $optval
1764
    ;;
1765
    --extra-libs=*) add_extralibs $optval
1766
    ;;
1767
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1768
    ;;
1769
    --enable-debug=*) debuglevel="$optval"
1770
    ;;
1771
    --disable-everything)
1772
    map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
1773
    ;;
1774
    --enable-*=*|--disable-*=*)
1775
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1776
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1777
    eval list=\$$(toupper $thing)_LIST
1778
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1779
    $action $(filter "$name" $list)
1780
    ;;
1781
    --enable-?*|--disable-?*)
1782
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1783
    if is_in $option $COMPONENT_LIST; then
1784
        test $action = disable && action=unset
1785
        eval $action \$$(toupper ${option%s})_LIST
1786
    elif is_in $option $CMDLINE_SELECT; then
1787
        $action $option
1788
    else
1789
        die_unknown $opt
1790
    fi
1791
    ;;
1792
    --list-*)
1793
        NAME="${opt#--list-}"
1794
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1795
        NAME=${NAME%s}
1796
        eval show_list $NAME \$$(toupper $NAME)_LIST
1797
    ;;
1798
    --help|-h) show_help
1799
    ;;
1800
    *)
1801
    optname="${opt%%=*}"
1802
    optname="${optname#--}"
1803
    optname=$(echo "$optname" | sed 's/-/_/g')
1804
    if is_in $optname $CMDLINE_SET; then
1805
        eval $optname='$optval'
1806
    elif is_in $optname $CMDLINE_APPEND; then
1807
        append $optname "$optval"
1808
    else
1809
         die_unknown $opt
1810
    fi
1811
    ;;
1812
    esac
1813
done
1814

    
1815
disabled logging && logfile=/dev/null
1816

    
1817
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1818
set >> $logfile
1819

    
1820
test -n "$cross_prefix" && enable cross_compile
1821

    
1822
if enabled cross_compile; then
1823
    test -n "$arch" && test -n "$target_os" ||
1824
        die "Must specify target arch and OS when cross-compiling"
1825
fi
1826

    
1827
set_default arch target_os
1828

    
1829
ar_default="${cross_prefix}${ar_default}"
1830
cc_default="${cross_prefix}${cc_default}"
1831
nm_default="${cross_prefix}${nm_default}"
1832
pkg_config_default="${cross_prefix}${pkg_config_default}"
1833
ranlib="${cross_prefix}${ranlib}"
1834
strip_default="${cross_prefix}${strip_default}"
1835

    
1836
sysinclude_default="${sysroot}/usr/include"
1837

    
1838
set_default cc nm pkg_config strip sysinclude
1839
enabled cross_compile || host_cc_default=$cc
1840
set_default host_cc
1841

    
1842
exesuf() {
1843
    case $1 in
1844
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1845
    esac
1846
}
1847

    
1848
EXESUF=$(exesuf $target_os)
1849
HOSTEXESUF=$(exesuf $host_os)
1850

    
1851
# set temporary file name
1852
: ${TMPDIR:=$TEMPDIR}
1853
: ${TMPDIR:=$TMP}
1854
: ${TMPDIR:=/tmp}
1855

    
1856
if ! check_cmd mktemp -u XXXXXX; then
1857
    # simple replacement for missing mktemp
1858
    # NOT SAFE FOR GENERAL USE
1859
    mktemp(){
1860
        echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
1861
    }
1862
fi
1863

    
1864
tmpfile(){
1865
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1866
        (set -C; exec > $tmp) 2>/dev/null ||
1867
        die "Unable to create temporary file in $TMPDIR."
1868
    append TMPFILES $tmp
1869
    eval $1=$tmp
1870
}
1871

    
1872
trap 'rm -f -- $TMPFILES' EXIT
1873

    
1874
tmpfile TMPC  .c
1875
tmpfile TMPE  $EXESUF
1876
tmpfile TMPH  .h
1877
tmpfile TMPO  .o
1878
tmpfile TMPS  .S
1879
tmpfile TMPV  .ver
1880
tmpfile TMPSH .sh
1881
tmpfile TMPASM .asm
1882

    
1883
unset -f mktemp
1884

    
1885
chmod +x $TMPE
1886

    
1887
# make sure we can execute files in $TMPDIR
1888
cat > $TMPSH 2>> $logfile <<EOF
1889
#! /bin/sh
1890
EOF
1891
chmod +x $TMPSH >> $logfile 2>&1
1892
if ! $TMPSH >> $logfile 2>&1; then
1893
    cat <<EOF
1894
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1895
variable to another directory and make sure that it is not mounted noexec.
1896
EOF
1897
    die "Sanity test failed."
1898
fi
1899

    
1900
filter_cflags=echo
1901
filter_cppflags=echo
1902
filter_asflags=echo
1903

    
1904
if   $cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
1905
    cc_type=llvm_gcc
1906
    cc_version=__VERSION__
1907
    gcc_extra_ver=$(expr "$($cc --version | head -n1)" : '.*\((.*)\)')
1908
    cc_ident="llvm-gcc $($cc -dumpversion) $gcc_extra_ver"
1909
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1910
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1911
    speed_cflags='-O3'
1912
    size_cflags='-Os'
1913
elif $cc -v 2>&1 | grep -qi ^gcc; then
1914
    cc_type=gcc
1915
    cc_version=__VERSION__
1916
    gcc_version=$($cc --version | head -n1)
1917
    gcc_basever=$($cc -dumpversion)
1918
    gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
1919
    gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
1920
    cc_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
1921
    if ! $cc -dumpversion | grep -q '^2\.'; then
1922
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1923
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1924
    fi
1925
    speed_cflags='-O3'
1926
    size_cflags='-Os'
1927
elif $cc --version 2>/dev/null | grep -q Intel; then
1928
    cc_type=icc
1929
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1930
    cc_ident=$($cc --version | head -n1)
1931
    icc_version=$($cc -dumpversion)
1932
    CC_DEPFLAGS='-MMD'
1933
    AS_DEPFLAGS='-MMD'
1934
    speed_cflags='-O3'
1935
    size_cflags='-Os'
1936
    noopt_cflags='-O1'
1937
elif $cc -v 2>&1 | grep -q xlc; then
1938
    cc_type=xlc
1939
    cc_version="AV_STRINGIFY(__IBMC__)"
1940
    cc_ident=$($cc -qversion 2>/dev/null | head -n1)
1941
    speed_cflags='-O5'
1942
    size_cflags='-O5 -qcompact'
1943
elif $cc -V 2>/dev/null | grep -q Compaq; then
1944
    cc_type=ccc
1945
    cc_version="AV_STRINGIFY(__DECC_VER)"
1946
    cc_ident=$($cc -V | head -n1 | cut -d' ' -f1-3)
1947
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1948
    debuglevel=3
1949
    add_ldflags -Wl,-z,now # calls to libots crash without this
1950
    speed_cflags='-fast'
1951
    size_cflags='-O1'
1952
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1953
    test -d "$sysroot" || die "No valid sysroot specified."
1954
    cc_type=armcc
1955
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1956
    cc_ident=$($cc --vsn | head -n1)
1957
    armcc_conf="$PWD/armcc.conf"
1958
    $cc --arm_linux_configure                 \
1959
        --arm_linux_config_file="$armcc_conf" \
1960
        --configure_sysroot="$sysroot"        \
1961
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1962
        die "Error creating armcc configuration file."
1963
    $cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
1964
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1965
    as_default="${cross_prefix}gcc"
1966
    CC_DEPFLAGS='-MMD'
1967
    AS_DEPFLAGS='-MMD'
1968
    speed_cflags='-O3'
1969
    size_cflags='-Os'
1970
    filter_asflags="filter_out -W${armcc_opt}*"
1971
elif $cc -version 2>/dev/null | grep -q TMS470; then
1972
    cc_type=tms470
1973
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1974
    cc_ident=$($cc -version | head -n1 | tr -s ' ')
1975
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1976
    CC_O='-fr=$(@D)'
1977
    as_default="${cross_prefix}gcc"
1978
    ld_default="${cross_prefix}gcc"
1979
    TMPO=$(basename $TMPC .c).o
1980
    append TMPFILES $TMPO
1981
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1982
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1983
    AS_DEPFLAGS='-MMD'
1984
    speed_cflags='-O3 -mf=5'
1985
    size_cflags='-O3 -mf=2'
1986
    filter_cflags=tms470_flags
1987
    tms470_flags(){
1988
        for flag; do
1989
            case $flag in
1990
                -march=*|-mcpu=*)
1991
                    case "${flag#*=}" in
1992
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1993
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1994
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1995
                        armv6*|arm11*)          echo -mv=6   ;;
1996
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1997
                                                echo -mv=5e  ;;
1998
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1999
                    esac
2000
                    ;;
2001
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
2002
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
2003
                -mfpu=vfpv3)    echo --float_support=vfpv3        ;;
2004
                -msoft-float)   echo --float_support=vfplib       ;;
2005
                -O[0-3]|-mf=*)  echo $flag                        ;;
2006
                -g)             echo -g -mn                       ;;
2007
                -pds=*)         echo $flag                        ;;
2008
            esac
2009
        done
2010
    }
2011
elif $cc -v 2>&1 | grep -q clang; then
2012
    cc_type=clang
2013
    $cc -dM -E $TMPC | grep -q __clang_version__ &&
2014
        cc_version=__clang_version__ || cc_version=__VERSION__
2015
    cc_ident=$($cc --version | head -n1)
2016
    CC_DEPFLAGS='-MMD'
2017
    AS_DEPFLAGS='-MMD'
2018
    speed_cflags='-O3'
2019
    size_cflags='-Os'
2020
elif $cc -V 2>&1 | grep -q Sun; then
2021
    cc_type=suncc
2022
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
2023
    cc_ident=$($cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
2024
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
2025
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
2026
    speed_cflags='-O5'
2027
    size_cflags='-O5 -xspace'
2028
    filter_cflags=suncc_flags
2029
    suncc_flags(){
2030
        for flag; do
2031
            case $flag in
2032
                -march=*|-mcpu=*)
2033
                    case "${flag#*=}" in
2034
                        native)                   echo -xtarget=native       ;;
2035
                        v9|niagara)               echo -xarch=sparc          ;;
2036
                        ultrasparc)               echo -xarch=sparcvis       ;;
2037
                        ultrasparc3|niagara2)     echo -xarch=sparcvis2      ;;
2038
                        i586|pentium)             echo -xchip=pentium        ;;
2039
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
2040
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
2041
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
2042
                        pentium4*)          echo -xtarget=pentium4           ;;
2043
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
2044
                        *-sse3)             echo -xarch=sse3                 ;;
2045
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
2046
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
2047
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
2048
                        k8|opteron|athlon64|athlon-fx)
2049
                                                  echo -xarch=sse2a          ;;
2050
                        athlon*)                  echo -xarch=pentium_proa   ;;
2051
                    esac
2052
                    ;;
2053
                -std=c99)             echo -xc99              ;;
2054
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
2055
                -fPIC)                echo -KPIC -xcode=pic32 ;;
2056
                -W*,*)                echo $flag              ;;
2057
                -f*-*|-W*)                                    ;;
2058
                *)                    echo $flag              ;;
2059
            esac
2060
        done
2061
    }
2062
elif $cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
2063
    cc_type=pathscale
2064
    cc_version=__PATHSCALE__
2065
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2066
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2067
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2068
    speed_cflags='-O2'
2069
    size_cflags='-Os'
2070
elif $cc -v 2>&1 | grep -q Open64; then
2071
    cc_type=open64
2072
    cc_version=__OPEN64__
2073
    cc_ident=$($cc -v 2>&1 | head -n1 | tr -d :)
2074
    CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2075
    AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
2076
    speed_cflags='-O2'
2077
    size_cflags='-Os'
2078
fi
2079

    
2080
test -n "$cc_type" && enable $cc_type ||
2081
    warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
2082

    
2083
: ${as_default:=$cc}
2084
: ${dep_cc_default:=$cc}
2085
: ${ld_default:=$cc}
2086
set_default ar as dep_cc ld
2087

    
2088
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
2089
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
2090

    
2091
add_cflags $extra_cflags
2092
add_asflags $extra_cflags
2093

    
2094
if test -n "$sysroot"; then
2095
    case "$cc_type" in
2096
        gcc|llvm_gcc|clang)
2097
            add_cppflags --sysroot="$sysroot"
2098
            add_ldflags --sysroot="$sysroot"
2099
        ;;
2100
        tms470)
2101
            add_cppflags -I"$sysinclude"
2102
            add_ldflags  --sysroot="$sysroot"
2103
        ;;
2104
    esac
2105
fi
2106

    
2107
if test "$cpu" = host; then
2108
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
2109

    
2110
    case "$cc_type" in
2111
        gcc|llvm_gcc)
2112
            check_native(){
2113
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
2114
                sed -n "/$1=/{
2115
                            s/.*$1=\\([^ ]*\\).*/\\1/
2116
                            p
2117
                            q
2118
                        }" $TMPE
2119
            }
2120
            cpu=$(check_native -march || check_native -mcpu)
2121
        ;;
2122
    esac
2123

    
2124
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
2125
fi
2126

    
2127
# Deal with common $arch aliases
2128
case "$arch" in
2129
    arm*)
2130
        arch="arm"
2131
    ;;
2132
    mips|mipsel|IP*)
2133
        arch="mips"
2134
    ;;
2135
    mips64*)
2136
        arch="mips"
2137
        subarch="mips64"
2138
    ;;
2139
    parisc|hppa)
2140
        arch="parisc"
2141
    ;;
2142
    parisc64|hppa64)
2143
        arch="parisc"
2144
        subarch="parisc64"
2145
    ;;
2146
    "Power Macintosh"|ppc|powerpc)
2147
        arch="ppc"
2148
    ;;
2149
    ppc64|powerpc64)
2150
        arch="ppc"
2151
        subarch="ppc64"
2152
    ;;
2153
    s390|s390x)
2154
        arch="s390"
2155
    ;;
2156
    sh4|sh)
2157
        arch="sh4"
2158
    ;;
2159
    sun4u|sparc64)
2160
        arch="sparc"
2161
        subarch="sparc64"
2162
    ;;
2163
    i[3-6]86|i86pc|BePC|x86pc|x86_64|amd64)
2164
        arch="x86"
2165
    ;;
2166
esac
2167

    
2168
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
2169
enable $arch
2170

    
2171
# Add processor-specific flags
2172
if test "$cpu" = generic; then
2173
    : do nothing
2174
elif enabled ppc; then
2175

    
2176
    case $(tolower $cpu) in
2177
        601|ppc601|powerpc601)
2178
            cpuflags="-mcpu=601"
2179
            disable altivec
2180
        ;;
2181
        603*|ppc603*|powerpc603*)
2182
            cpuflags="-mcpu=603"
2183
            disable altivec
2184
        ;;
2185
        604*|ppc604*|powerpc604*)
2186
            cpuflags="-mcpu=604"
2187
            disable altivec
2188
        ;;
2189
        g3|75*|ppc75*|powerpc75*)
2190
            cpuflags="-mcpu=750 -mpowerpc-gfxopt"
2191
            disable altivec
2192
        ;;
2193
        g4|745*|ppc745*|powerpc745*)
2194
            cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
2195
        ;;
2196
        74*|ppc74*|powerpc74*)
2197
            cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
2198
        ;;
2199
        g5|970|ppc970|powerpc970|power4*)
2200
            cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
2201
        ;;
2202
        cell)
2203
            cpuflags="-mcpu=cell"
2204
            enable ldbrx
2205
        ;;
2206
        e500v2)
2207
            cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
2208
            disable altivec
2209
        ;;
2210
        e500)
2211
            cpuflags="-mcpu=8540 -mhard-float"
2212
            disable altivec
2213
        ;;
2214
    esac
2215

    
2216
elif enabled x86; then
2217

    
2218
    case $cpu in
2219
        i[345]86|pentium)
2220
            cpuflags="-march=$cpu"
2221
            disable mmx
2222
        ;;
2223
        # targets that do NOT support conditional mov (cmov)
2224
        pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
2225
            cpuflags="-march=$cpu"
2226
            disable cmov
2227
        ;;
2228
        # targets that do support conditional mov (cmov)
2229
        i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10|barcelona|atom)
2230
            cpuflags="-march=$cpu"
2231
            enable cmov
2232
            enable fast_cmov
2233
        ;;
2234
        # targets that do support conditional mov but on which it's slow
2235
        pentium4|pentium4m|prescott|nocona)
2236
            cpuflags="-march=$cpu"
2237
            enable cmov
2238
            disable fast_cmov
2239
        ;;
2240
    esac
2241

    
2242
elif enabled sparc; then
2243

    
2244
    case $cpu in
2245
        niagara)
2246
            cpuflags="-mcpu=$cpu"
2247
            disable vis
2248
        ;;
2249
        sparc64)
2250
            cpuflags="-mcpu=v9"
2251
        ;;
2252
    esac
2253

    
2254
elif enabled arm; then
2255

    
2256
    case $cpu in
2257
        armv*)
2258
            cpuflags="-march=$cpu"
2259
            subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
2260
        ;;
2261
        *)
2262
            cpuflags="-mcpu=$cpu"
2263
            case $cpu in
2264
                cortex-a*)                               subarch=armv7a  ;;
2265
                cortex-r*)                               subarch=armv7r  ;;
2266
                cortex-m*)                               subarch=armv7m  ;;
2267
                arm11*)                                  subarch=armv6   ;;
2268
                arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
2269
                armv4*|arm7*|arm9[24]*)                  subarch=armv4   ;;
2270
            esac
2271
        ;;
2272
    esac
2273

    
2274
elif enabled alpha; then
2275

    
2276
    enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
2277

    
2278
elif enabled bfin; then
2279

    
2280
    cpuflags="-mcpu=$cpu"
2281

    
2282
elif enabled mips; then
2283

    
2284
    cpuflags="-march=$cpu"
2285

    
2286
elif enabled avr32; then
2287

    
2288
    case $cpu in
2289
        ap7[02]0[0-2])
2290
            subarch="avr32_ap"
2291
            cpuflags="-mpart=$cpu"
2292
        ;;
2293
        ap)
2294
            subarch="avr32_ap"
2295
            cpuflags="-march=$cpu"
2296
        ;;
2297
        uc3[ab]*)
2298
            subarch="avr32_uc"
2299
            cpuflags="-mcpu=$cpu"
2300
        ;;
2301
        uc)
2302
            subarch="avr32_uc"
2303
            cpuflags="-march=$cpu"
2304
        ;;
2305
    esac
2306

    
2307
fi
2308

    
2309
add_cflags $cpuflags
2310
add_asflags $cpuflags
2311

    
2312
# compiler sanity check
2313
check_exec <<EOF
2314
int main(void){ return 0; }
2315
EOF
2316
if test "$?" != 0; then
2317
    echo "$cc is unable to create an executable file."
2318
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
2319
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
2320
        echo "Only do this if you know what cross compiling means."
2321
    fi
2322
    die "C compiler test failed."
2323
fi
2324

    
2325
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
2326
check_cflags -std=c99
2327
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
2328
#include <stdlib.h>
2329
EOF
2330
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
2331
#include <stdlib.h>
2332
EOF
2333

    
2334
check_host_cflags -std=c99
2335

    
2336
case "$arch" in
2337
    alpha|ia64|mips|parisc|sparc)
2338
        spic=$shared
2339
    ;;
2340
    x86)
2341
        subarch="x86_32"
2342
        check_cc <<EOF && subarch="x86_64"
2343
        int test[(int)sizeof(char*) - 7];
2344
EOF
2345
        if test "$subarch" = "x86_64"; then
2346
            spic=$shared
2347
        fi
2348
    ;;
2349
esac
2350

    
2351
enable $subarch
2352
enabled spic && enable pic
2353

    
2354
# OS specific
2355
case $target_os in
2356
    haiku)
2357
        prefix_default="/boot/common"
2358
        network_extralibs="-lnetwork"
2359
        host_libs=
2360
        ;;
2361
    sunos)
2362
        FFSERVERLDFLAGS=""
2363
        SHFLAGS='-shared -Wl,-h,$$(@F)'
2364
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
2365
        network_extralibs="-lsocket -lnsl"
2366
        add_cppflags -D__EXTENSIONS__
2367
        nm_opts='-P -g'
2368
        ;;
2369
    netbsd)
2370
        disable symver
2371
        oss_indev_extralibs="-lossaudio"
2372
        oss_outdev_extralibs="-lossaudio"
2373
        add_cppflags -D_XOPEN_SOURCE=600
2374
        ;;
2375
    openbsd)
2376
        enable malloc_aligned
2377
        # On OpenBSD 4.5. the compiler does not use PIC unless
2378
        # explicitly using -fPIC. FFmpeg builds fine without PIC,
2379
        # however the generated executable will not do anything
2380
        # (simply quits with exit-code 1, no crash, no output).
2381
        # Thus explicitly enable PIC here.
2382
        enable pic
2383
        disable symver
2384
        SHFLAGS='-shared'
2385
        oss_indev_extralibs="-lossaudio"
2386
        oss_outdev_extralibs="-lossaudio"
2387
        ;;
2388
    dragonfly)
2389
        enable malloc_aligned
2390
        disable symver
2391
        ;;
2392
    freebsd)
2393
        enable malloc_aligned
2394
        ;;
2395
    bsd/os)
2396
        add_extralibs -lpoll -lgnugetopt
2397
        strip="strip -d"
2398
        ;;
2399
    darwin)
2400
        enable malloc_aligned
2401
        gas="gas-preprocessor.pl $cc"
2402
        enabled ppc && add_asflags -force_cpusubtype_ALL
2403
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
2404
        enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
2405
        strip="${strip} -x"
2406
        add_ldflags -Wl,-dynamic,-search_paths_first
2407
        SLIBSUF=".dylib"
2408
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2409
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2410
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2411
        objformat="macho"
2412
        enabled x86_64 && objformat="macho64"
2413
        enabled_any pic shared ||
2414
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2415
        ;;
2416
    mingw32*)
2417
        if test $target_os = "mingw32ce"; then
2418
            disable network
2419
        else
2420
            target_os=mingw32
2421
        fi
2422
        LIBTARGET=i386
2423
        if enabled x86_64; then
2424
            enable malloc_aligned
2425
            LIBTARGET="i386:x86-64"
2426
        elif enabled arm; then
2427
            LIBTARGET=arm-wince
2428
        fi
2429
        shlibdir_default="$bindir_default"
2430
        SLIBPREF=""
2431
        SLIBSUF=".dll"
2432
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2433
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2434
        SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
2435
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2436
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2437
            install -d "$(LIBDIR)"; \
2438
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2439
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2440
        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'
2441
        objformat="win32"
2442
        dlltool="${cross_prefix}dlltool"
2443
        enable dos_paths
2444
        check_cflags -fno-common
2445
        check_cpp_condition _mingw.h "defined (__MINGW64_VERSION_MAJOR) || (__MINGW32_MAJOR_VERSION > 3) \
2446
                                      || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2447
                die "ERROR: MinGW runtime version must be >= 3.15."
2448
        add_cppflags -U__STRICT_ANSI__
2449
        ;;
2450
    cygwin*)
2451
        target_os=cygwin
2452
        shlibdir_default="$bindir_default"
2453
        SLIBPREF="cyg"
2454
        SLIBSUF=".dll"
2455
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2456
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2457
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2458
        objformat="win32"
2459
        enable dos_paths
2460
        check_cflags -fno-common
2461
        ;;
2462
    *-dos|freedos|opendos)
2463
        network_extralibs="-lsocket"
2464
        objformat="coff"
2465
        enable dos_paths
2466
        ;;
2467
    linux)
2468
        enable dv1394
2469
        ;;
2470
    irix*)
2471
        target_os=irix
2472
        ranlib="echo ignoring ranlib"
2473
        ;;
2474
    os/2*)
2475
        strip="lxlite -CS"
2476
        ln_s="cp -f"
2477
        add_ldflags -Zomf -Zbin-files -Zargs-wild -Zmap
2478
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2479
        FFSERVERLDFLAGS=""
2480
        LIBSUF="_s.a"
2481
        SLIBPREF=""
2482
        SLIBSUF=".dll"
2483
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2484
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2485
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2486
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2487
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2488
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2489
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2490
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2491
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2492
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2493
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2494
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2495
        enable dos_paths
2496
        ;;
2497
    gnu/kfreebsd)
2498
        ;;
2499
    gnu)
2500
        ;;
2501
    qnx)
2502
        add_cppflags -D_QNX_SOURCE
2503
        network_extralibs="-lsocket"
2504
        ;;
2505
    none)
2506
        ;;
2507
    *)
2508
        die "Unknown OS '$target_os'."
2509
        ;;
2510
esac
2511

    
2512
echo "config:$arch:$subarch:$cpu:$target_os:$cc_ident:$FFMPEG_CONFIGURATION" >config.fate
2513

    
2514
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
2515

    
2516
set_default $PATHS_LIST
2517

    
2518
# we need to build at least one lib type
2519
if ! enabled_any static shared; then
2520
    cat <<EOF
2521
At least one library type must be built.
2522
Specify --enable-static to build the static libraries or --enable-shared to
2523
build the shared libraries as well. To only build the shared libraries specify
2524
--disable-static in addition to --enable-shared.
2525
EOF
2526
    exit 1;
2527
fi
2528

    
2529
disabled static && LIBNAME=""
2530

    
2531
die_license_disabled() {
2532
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2533
}
2534

    
2535
die_license_disabled gpl libx264
2536
die_license_disabled gpl libxavs
2537
die_license_disabled gpl libxvid
2538
die_license_disabled gpl postproc
2539
die_license_disabled gpl x11grab
2540

    
2541
die_license_disabled nonfree libfaac
2542

    
2543
die_license_disabled version3 libopencore_amrnb
2544
die_license_disabled version3 libopencore_amrwb
2545

    
2546
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2547

    
2548
disabled optimizations || check_cflags -fomit-frame-pointer
2549

    
2550
enable_pic() {
2551
    enable pic
2552
    add_cppflags -DPIC
2553
    add_cflags   -fPIC
2554
    add_asflags  -fPIC
2555
}
2556

    
2557
enabled pic && enable_pic
2558

    
2559
check_cc <<EOF || die "Symbol mangling check failed."
2560
int ff_extern;
2561
EOF
2562
sym=$($nm $nm_opts $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
2563
extern_prefix=${sym%%ff_extern*}
2564

    
2565
check_cc <<EOF && enable inline_asm
2566
void foo(void) { __asm__ volatile ("" ::); }
2567
EOF
2568

    
2569
_restrict=
2570
for restrict_keyword in restrict __restrict__ __restrict; do
2571
    check_cc <<EOF && _restrict=$restrict_keyword && break
2572
void foo(char * $restrict_keyword p);
2573
EOF
2574
done
2575

    
2576
check_cc <<EOF && enable attribute_packed
2577
struct { int x; } __attribute__((packed)) x;
2578
EOF
2579

    
2580
check_cc <<EOF && enable attribute_may_alias
2581
union { int x; } __attribute__((may_alias)) x;
2582
EOF
2583

    
2584
check_cc <<EOF || die "endian test failed"
2585
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2586
EOF
2587
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2588

    
2589
if enabled alpha; then
2590

    
2591
    check_cflags -mieee
2592

    
2593
elif enabled arm; then
2594

    
2595
    check_cflags -marm
2596
    nogas=die
2597

    
2598
    if     check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
2599
        enable vfp_args
2600
    elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__"; then
2601
        case "${cross_prefix:-$cc}" in
2602
            *hardfloat*)         enable vfp_args;   fpabi=vfp ;;
2603
            *) check_ld <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
2604
__asm__ (".eabi_attribute 28, 1");
2605
int main(void) { return 0; }
2606
EOF
2607
        esac
2608
        warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
2609
    fi
2610

    
2611
    # We have to check if pld is a nop and disable it.
2612
    check_asm pld '"pld [r0]"'
2613

    
2614
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2615
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2616
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2617
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2618
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2619
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2620

    
2621
    enabled_all armv6t2 shared !pic && enable_pic
2622

    
2623
elif enabled mips; then
2624

    
2625
    check_asm loongson '"dmult.g $1, $2, $3"'
2626
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2627

    
2628
elif enabled ppc; then
2629

    
2630
    enable local_aligned_8 local_aligned_16
2631

    
2632
    check_asm dcbzl     '"dcbzl 0, %0" :: "r"(0)'
2633
    check_asm ibm_asm   '"add 0, 0, 0"'
2634
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2635
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2636

    
2637
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2638
    if enabled altivec; then
2639
        nogas=warn
2640
        check_cflags -maltivec -mabi=altivec &&
2641
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2642
        check_cflags -faltivec
2643

    
2644
        # check if our compiler supports Motorola AltiVec C API
2645
        check_cc <<EOF || disable altivec
2646
$inc_altivec_h
2647
int main(void) {
2648
    vector signed int v1, v2, v3;
2649
    v1 = vec_add(v2,v3);
2650
    return 0;
2651
}
2652
EOF
2653

    
2654
        # check if our compiler supports braces for vector declarations
2655
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2656
$inc_altivec_h
2657
int main (void) { (vector int) {1}; return 0; }
2658
EOF
2659
    fi
2660

    
2661
elif enabled sparc; then
2662

    
2663
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2664
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2665

    
2666
elif enabled x86; then
2667

    
2668
    enable local_aligned_8 local_aligned_16
2669

    
2670
    # check whether EBP is available on x86
2671
    # As 'i' is stored on the stack, this program will crash
2672
    # if the base pointer is used to access it because the
2673
    # base pointer is cleared in the inline assembly code.
2674
    check_exec_crash <<EOF && enable ebp_available
2675
    volatile int i=0;
2676
    __asm__ volatile (
2677
        "xorl %%ebp, %%ebp"
2678
    ::: "%ebp");
2679
    return i;
2680
EOF
2681

    
2682
    # check whether EBX is available on x86
2683
    check_asm ebx_available '""::"b"(0)' &&
2684
        check_asm ebx_available '"":::"%ebx"'
2685

    
2686
    # check whether xmm clobbers are supported
2687
    check_asm xmm_clobbers '"":::"%xmm0"'
2688

    
2689
    # check whether more than 10 operands are supported
2690
    check_cc <<EOF && enable ten_operands
2691
int main(void) {
2692
    int x=0;
2693
    __asm__ volatile(
2694
        ""
2695
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2696
    );
2697
    return 0;
2698
}
2699
EOF
2700

    
2701
    # check whether binutils is new enough to compile SSSE3/MMX2
2702
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2703
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2704

    
2705
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2706

    
2707
    if ! disabled_any asm mmx yasm; then
2708
        if check_cmd $yasmexe --version; then
2709
            enabled x86_64 && yasm_extra="-m amd64"
2710
            yasm_debug="-g dwarf2"
2711
        elif check_cmd nasm -v; then
2712
            yasmexe=nasm
2713
            yasm_debug="-g -F dwarf"
2714
            enabled x86_64 && test "$objformat" = elf && objformat=elf64
2715
        fi
2716

    
2717
        YASMFLAGS="-f $objformat $yasm_extra"
2718
        enabled pic               && append YASMFLAGS "-DPIC"
2719
        test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2720
        case "$objformat" in
2721
            elf*) enabled debug && append YASMFLAGS $yasm_debug ;;
2722
        esac
2723

    
2724
        check_yasm "pextrd [eax], xmm0, 1" && enable yasm ||
2725
            die "yasm not found, use --disable-yasm for a crippled build"
2726
        check_yasm "vpaddw xmm0, xmm0, xmm0" || disable avx
2727
    fi
2728

    
2729
    case "$cpu" in
2730
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2731
            disable fast_clz
2732
        ;;
2733
    esac
2734

    
2735
fi
2736

    
2737
if enabled asm; then
2738
    as=${gas:=$as}
2739
    check_asm gnu_as '".macro m n\n\\n:.int 0\n.endm\nm x"' ||
2740
        $nogas "GNU assembler not found, install gas-preprocessor"
2741
fi
2742

    
2743
check_ldflags -Wl,--as-needed
2744

    
2745
if check_func dlopen; then
2746
    ldl=
2747
elif check_func dlopen -ldl; then
2748
    ldl=-ldl
2749
fi
2750

    
2751
if enabled network; then
2752
    check_type "sys/types.h sys/socket.h" socklen_t
2753
    check_type netdb.h "struct addrinfo"
2754
    check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
2755
    check_type netinet/in.h "struct sockaddr_in6"
2756
    check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
2757
    check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
2758
    # Prefer arpa/inet.h over winsock2
2759
    if check_header arpa/inet.h ; then
2760
        check_func closesocket
2761
    elif check_header winsock2.h ; then
2762
        check_func_headers winsock2.h closesocket -lws2 && \
2763
            network_extralibs="-lws2" || \
2764
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2765
            network_extralibs="-lws2_32"; }
2766
        check_type ws2tcpip.h socklen_t
2767
        check_type ws2tcpip.h "struct addrinfo"
2768
        check_type ws2tcpip.h "struct ipv6_mreq"
2769
        check_type ws2tcpip.h "struct sockaddr_in6"
2770
        check_type ws2tcpip.h "struct sockaddr_storage"
2771
        check_struct winsock2.h "struct sockaddr" sa_len
2772
    else
2773
        disable network
2774
    fi
2775
fi
2776

    
2777
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2778
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2779

    
2780
check_func  fcntl
2781
check_func  fork
2782
check_func  getaddrinfo $network_extralibs
2783
check_func  gethrtime
2784
check_func  getrusage
2785
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
2786
check_func  inet_aton $network_extralibs
2787
check_func  isatty
2788
check_func  localtime_r
2789
check_func  ${malloc_prefix}memalign            && enable memalign
2790
check_func  mkstemp
2791
check_func  mmap
2792
check_func  ${malloc_prefix}posix_memalign      && enable posix_memalign
2793
check_func  setrlimit
2794
check_func  strerror_r
2795
check_func  strtok_r
2796
check_func_headers conio.h kbhit
2797
check_func_headers io.h setmode
2798
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2799
check_lib2 "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
2800
check_func_headers windows.h GetProcessTimes
2801
check_func_headers windows.h MapViewOfFile
2802
check_func_headers windows.h VirtualAlloc
2803

    
2804
check_header dlfcn.h
2805
check_header dxva2api.h
2806
check_header libcrystalhd/libcrystalhd_if.h
2807
check_header malloc.h
2808
check_header poll.h
2809
check_header sys/mman.h
2810
check_header sys/resource.h
2811
check_header sys/select.h
2812
check_header vdpau/vdpau.h
2813
check_header vdpau/vdpau_x11.h
2814
check_header X11/extensions/XvMClib.h
2815

    
2816
check_struct dxva2api.h DXVA_PictureParameters wDecodedPictureIndex
2817

    
2818
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2819
     enabled_any $need_memalign ; then
2820
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2821
fi
2822

    
2823
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2824
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2825

    
2826
# check for some common methods of building with pthread support
2827
# do this before the optional library checks as some of them require pthreads
2828
if ! disabled pthreads && ! enabled w32threads; then
2829
    enable pthreads
2830
    if check_func pthread_create; then
2831
        :
2832
    elif check_func pthread_create -pthread; then
2833
        add_cflags -pthread
2834
        add_extralibs -pthread
2835
    elif check_func pthread_create -pthreads; then
2836
        add_cflags -pthreads
2837
        add_extralibs -pthreads
2838
    elif check_func pthread_create -lpthreadGC2; then
2839
        add_extralibs -lpthreadGC2
2840
    elif ! check_lib pthread.h pthread_create -lpthread; then
2841
        disable pthreads
2842
    fi
2843
fi
2844

    
2845
for thread in $THREADS_LIST; do
2846
    if enabled $thread; then
2847
        test -n "$thread_type" &&
2848
            die "ERROR: Only one thread type must be selected." ||
2849
            thread_type="$thread"
2850
    fi
2851
done
2852

    
2853
check_lib math.h sin -lm
2854
disabled crystalhd || check_lib libcrystalhd/libcrystalhd_if.h DtsGetVersion -lcrystalhd
2855
disabled vaapi || check_lib va/va.h vaInitialize -lva
2856

    
2857
check_mathfunc exp2
2858
check_mathfunc exp2f
2859
check_mathfunc llrint
2860
check_mathfunc llrintf
2861
check_mathfunc log2
2862
check_mathfunc log2f
2863
check_mathfunc lrint
2864
check_mathfunc lrintf
2865
check_mathfunc round
2866
check_mathfunc roundf
2867
check_mathfunc truncf
2868

    
2869
# these are off by default, so fail if requested and not available
2870
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lavifil32
2871
enabled frei0r     && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
2872
enabled libdirac   && require_pkg_config dirac                          \
2873
    "libdirac_decoder/dirac_parser.h libdirac_encoder/dirac_encoder.h"  \
2874
    "dirac_decoder_init dirac_encoder_init"
2875
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2876
enabled libfreetype && add_cflags $(pkg-config --cflags freetype2) && require libfreetype ft2build.h FT_Init_FreeType -lfreetype
2877
enabled libgsm     && require  libgsm gsm/gsm.h gsm_create -lgsm
2878
enabled libmp3lame && require  "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
2879
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2880
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
2881
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
2882
enabled libopencv  && require_pkg_config opencv opencv/cv.h cvCreateImageHeader
2883
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2884
enabled librtmp    && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
2885
enabled libschroedinger && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
2886
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2887
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2888
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2889
enabled libvpx     && {
2890
    enabled libvpx_decoder && { check_lib2 "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
2891
                                die "ERROR: libvpx decoder version must be >=0.9.1"; }
2892
    enabled libvpx_encoder && { check_lib2 "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_enc_init_ver -lvpx ||
2893
                                die "ERROR: libvpx encoder version must be >=0.9.1"; } }
2894
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 &&
2895
                      { check_cpp_condition x264.h "X264_BUILD >= 99" ||
2896
                        die "ERROR: libx264 version must be >= 0.99."; }
2897
enabled libxavs    && require  libxavs xavs.h xavs_encoder_encode -lxavs
2898
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2899
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2900

    
2901
# libdc1394 check
2902
if enabled libdc1394; then
2903
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2904
        enable libdc1394_2; } ||
2905
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2906
        enable libdc1394_1; } ||
2907
    die "ERROR: No version of libdc1394 found "
2908
fi
2909

    
2910
if check_pkg_config sdl SDL_version.h SDL_Linked_Version; then
2911
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2912
    enable sdl &&
2913
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2914
fi
2915

    
2916
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2917

    
2918
check_header linux/fb.h
2919
check_header linux/videodev.h
2920
check_header linux/videodev2.h
2921
check_header sys/videoio.h
2922

    
2923
check_func_headers "windows.h vfw.h" capCreateCaptureWindow "$vfwcap_indev_extralibs"
2924
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
2925
# w32api 3.12 had it defined wrong
2926
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
2927

    
2928
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2929
{ check_header dev/bktr/ioctl_meteor.h &&
2930
  check_header dev/bktr/ioctl_bt848.h; } ||
2931
{ check_header machine/ioctl_meteor.h &&
2932
  check_header machine/ioctl_bt848.h; } ||
2933
{ check_header dev/video/meteor/ioctl_meteor.h &&
2934
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2935
check_header dev/ic/bt8xx.h
2936

    
2937
check_header sys/soundcard.h
2938
check_header soundcard.h
2939

    
2940
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2941

    
2942
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2943

    
2944
enabled x11grab                         &&
2945
check_header X11/Xlib.h                 &&
2946
check_header X11/extensions/XShm.h      &&
2947
check_header X11/extensions/Xfixes.h    &&
2948
check_func XOpenDisplay -lX11           &&
2949
check_func XShmCreateImage -lX11 -lXext &&
2950
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2951

    
2952
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2953
check_cpp_condition \
2954
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2955
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2956
      disable vdpau; }
2957
fi
2958

    
2959
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2960

    
2961
# add some useful compiler flags if supported
2962
check_cflags -Wdeclaration-after-statement
2963
check_cflags -Wall
2964
check_cflags -Wno-parentheses
2965
check_cflags -Wno-switch
2966
check_cflags -Wdisabled-optimization
2967
check_cflags -Wpointer-arith
2968
check_cflags -Wredundant-decls
2969
check_cflags -Wno-pointer-sign
2970
check_cflags -Wcast-qual
2971
check_cflags -Wwrite-strings
2972
check_cflags -Wtype-limits
2973
check_cflags -Wundef
2974
check_cflags -Wmissing-prototypes
2975
enabled extra_warnings && check_cflags -Winline
2976

    
2977
# add some linker flags
2978
check_ldflags -Wl,--warn-common
2979
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'
2980
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
2981

    
2982
echo "X{};" > $TMPV
2983
if test_ldflags -Wl,--version-script,$TMPV; then
2984
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2985
    check_cc <<EOF && enable symver_asm_label
2986
void ff_foo(void) __asm__ ("av_foo@VERSION");
2987
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
2988
EOF
2989
    check_cc <<EOF && enable symver_gnu_asm
2990
__asm__(".symver ff_foo,av_foo@VERSION");
2991
void ff_foo(void) {}
2992
EOF
2993
fi
2994

    
2995
if enabled small; then
2996
    add_cflags $size_cflags
2997
    optimizations="small"
2998
elif enabled optimizations; then
2999
    add_cflags $speed_cflags
3000
else
3001
    add_cflags $noopt_cflags
3002
fi
3003
check_cflags -fno-math-errno
3004
check_cflags -fno-signed-zeros
3005

    
3006
if enabled icc; then
3007
    # Just warnings, no remarks
3008
    check_cflags -w1
3009
    # -wd: Disable following warnings
3010
    # 144, 167, 556: -Wno-pointer-sign
3011
    # 1292: attribute "foo" ignored
3012
    # 10006: ignoring unknown option -fno-signed-zeros
3013
    # 10148: ignoring unknown option -Wno-parentheses
3014
    # 10156: ignoring option '-W'; no argument required
3015
    check_cflags -wd144,167,556,1292,10006,10148,10156
3016
    # 11030: Warning unknown option --as-needed
3017
    # 10156: ignoring option '-export'; no argument required
3018
    check_ldflags -wd10156,11030
3019
    # Allow to compile with optimizations
3020
    check_ldflags -march=$cpu
3021
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
3022
    enable ebp_available
3023
    if enabled x86_32; then
3024
        test ${icc_version%%.*} -ge 11 && \
3025
            check_cflags -falign-stack=maintain-16-byte || \
3026
            disable aligned_stack
3027
    fi
3028
elif enabled ccc; then
3029
    # disable some annoying warnings
3030
    add_cflags -msg_disable cvtu32to64
3031
    add_cflags -msg_disable embedcomment
3032
    add_cflags -msg_disable needconstext
3033
    add_cflags -msg_disable nomainieee
3034
    add_cflags -msg_disable ptrmismatch1
3035
    add_cflags -msg_disable unreachcode
3036
elif enabled gcc; then
3037
    check_cflags -fno-tree-vectorize
3038
    check_cflags -Werror=implicit-function-declaration
3039
    check_cflags -Werror=missing-prototypes
3040
elif enabled llvm_gcc; then
3041
    check_cflags -mllvm -stack-alignment=16
3042
elif enabled clang; then
3043
    check_cflags -mllvm -stack-alignment=16
3044
    check_cflags -Qunused-arguments
3045
elif enabled armcc; then
3046
    # 2523: use of inline assembler is deprecated
3047
    add_cflags -W${armcc_opt},--diag_suppress=2523
3048
    add_cflags -W${armcc_opt},--diag_suppress=1207
3049
    add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
3050
    add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
3051
elif enabled tms470; then
3052
    add_cflags -pds=824 -pds=837
3053
elif enabled pathscale; then
3054
    add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
3055
fi
3056

    
3057
enabled_any $THREADS_LIST      && enable threads
3058

    
3059
check_deps $CONFIG_LIST       \
3060
           $CONFIG_EXTRA      \
3061
           $HAVE_LIST         \
3062
           $DECODER_LIST      \
3063
           $ENCODER_LIST      \
3064
           $HWACCEL_LIST      \
3065
           $PARSER_LIST       \
3066
           $BSF_LIST          \
3067
           $DEMUXER_LIST      \
3068
           $MUXER_LIST        \
3069
           $FILTER_LIST       \
3070
           $INDEV_LIST        \
3071
           $OUTDEV_LIST       \
3072
           $PROTOCOL_LIST     \
3073
           $ACODEC_TESTS      \
3074
           $VCODEC_TESTS      \
3075
           $LAVF_TESTS        \
3076
           $LAVFI_TESTS       \
3077
           $SEEK_TESTS        \
3078

    
3079
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
3080

    
3081
echo "install prefix            $prefix"
3082
echo "source path               $source_path"
3083
echo "C compiler                $cc"
3084
echo "ARCH                      $arch ($cpu)"
3085
if test "$build_suffix" != ""; then
3086
    echo "build suffix              $build_suffix"
3087
fi
3088
if test "$extra_version" != ""; then
3089
    echo "version string suffix     $extra_version"
3090
fi
3091
echo "big-endian                ${bigendian-no}"
3092
echo "runtime cpu detection     ${runtime_cpudetect-no}"
3093
if enabled x86; then
3094
    echo "yasm                      ${yasm-no}"
3095
    echo "MMX enabled               ${mmx-no}"
3096
    echo "MMX2 enabled              ${mmx2-no}"
3097
    echo "3DNow! enabled            ${amd3dnow-no}"
3098
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
3099
    echo "SSE enabled               ${sse-no}"
3100
    echo "SSSE3 enabled             ${ssse3-no}"
3101
    echo "CMOV enabled              ${cmov-no}"
3102
    echo "CMOV is fast              ${fast_cmov-no}"
3103
    echo "EBX available             ${ebx_available-no}"
3104
    echo "EBP available             ${ebp_available-no}"
3105
    echo "10 operands supported     ${ten_operands-no}"
3106
fi
3107
if enabled arm; then
3108
    echo "ARMv5TE enabled           ${armv5te-no}"
3109
    echo "ARMv6 enabled             ${armv6-no}"
3110
    echo "ARMv6T2 enabled           ${armv6t2-no}"
3111
    echo "ARM VFP enabled           ${armvfp-no}"
3112
    echo "IWMMXT enabled            ${iwmmxt-no}"
3113
    echo "NEON enabled              ${neon-no}"
3114
fi
3115
if enabled mips; then
3116
    echo "MMI enabled               ${mmi-no}"
3117
fi
3118
if enabled ppc; then
3119
    echo "AltiVec enabled           ${altivec-no}"
3120
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
3121
    echo "dcbzl available           ${dcbzl-no}"
3122
fi
3123
if enabled sparc; then
3124
    echo "VIS enabled               ${vis-no}"
3125
fi
3126
echo "debug symbols             ${debug-no}"
3127
echo "strip symbols             ${stripping-no}"
3128
echo "optimizations             ${optimizations-no}"
3129
echo "static                    ${static-no}"
3130
echo "shared                    ${shared-no}"
3131
echo "postprocessing support    ${postproc-no}"
3132
echo "new filter support        ${avfilter-no}"
3133
echo "network support           ${network-no}"
3134
echo "threading support         ${thread_type-no}"
3135
echo "SDL support               ${sdl-no}"
3136
echo "Sun medialib support      ${mlib-no}"
3137
echo "AVISynth enabled          ${avisynth-no}"
3138
echo "frei0r enabled            ${frei0r-no}"
3139
echo "libdc1394 support         ${libdc1394-no}"
3140
echo "libdirac enabled          ${libdirac-no}"
3141
echo "libfaac enabled           ${libfaac-no}"
3142
echo "libgsm enabled            ${libgsm-no}"
3143
echo "libmp3lame enabled        ${libmp3lame-no}"
3144
echo "libnut enabled            ${libnut-no}"
3145
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
3146
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
3147
echo "libopencv support         ${libopencv-no}"
3148
echo "libopenjpeg enabled       ${libopenjpeg-no}"
3149
echo "librtmp enabled           ${librtmp-no}"
3150
echo "libschroedinger enabled   ${libschroedinger-no}"
3151
echo "libspeex enabled          ${libspeex-no}"
3152
echo "libtheora enabled         ${libtheora-no}"
3153
echo "libvorbis enabled         ${libvorbis-no}"
3154
echo "libvpx enabled            ${libvpx-no}"
3155
echo "libx264 enabled           ${libx264-no}"
3156
echo "libxavs enabled           ${libxavs-no}"
3157
echo "libxvid enabled           ${libxvid-no}"
3158
echo "zlib enabled              ${zlib-no}"
3159
echo "bzlib enabled             ${bzlib-no}"
3160
echo
3161

    
3162
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
3163
    echo "Enabled ${type}s:"
3164
    eval list=\$$(toupper $type)_LIST
3165
    print_enabled '_*' $list | sort | pr -r -3 -t
3166
    echo
3167
done
3168

    
3169
license="LGPL version 2.1 or later"
3170
if enabled nonfree; then
3171
    license="nonfree and unredistributable"
3172
elif enabled gplv3; then
3173
    license="GPL version 3 or later"
3174
elif enabled lgplv3; then
3175
    license="LGPL version 3 or later"
3176
elif enabled gpl; then
3177
    license="GPL version 2 or later"
3178
fi
3179

    
3180
echo "License: $license"
3181

    
3182
echo "Creating config.mak and config.h..."
3183

    
3184
# build tree in object directory if source path is different from current one
3185
if enabled source_path_used; then
3186
    DIRS="
3187
        doc
3188
        libavcodec
3189
        libavcodec/$arch
3190
        libavdevice
3191
        libavfilter
3192
        libavfilter/$arch
3193
        libavfilter/libmpcodecs
3194
        libavfilter/libmpcodecs/libvo
3195
        libavformat
3196
        libavutil
3197
        libavutil/$arch
3198
        libpostproc
3199
        libswscale
3200
        libswscale/$arch
3201
        tests
3202
        tools
3203
    "
3204
    FILES="
3205
        Makefile
3206
        common.mak
3207
        subdir.mak
3208
        doc/texi2pod.pl
3209
        libavcodec/Makefile
3210
        libavcodec/${arch}/Makefile
3211
        libavdevice/Makefile
3212
        libavfilter/Makefile
3213
        libavfilter/${arch}/Makefile
3214
        libavformat/Makefile
3215
        libavutil/Makefile
3216
        libpostproc/Makefile
3217
        libswscale/Makefile
3218
    "
3219
    map 'mkdir -p $v' $DIRS;
3220
    map 'test -f "$source_path/$v" && $ln_s "$source_path/$v" $v' $FILES
3221
fi
3222

    
3223
enabled stripping || strip="echo skipping strip"
3224

    
3225
config_files="$TMPH config.mak"
3226

    
3227
cat > config.mak <<EOF
3228
# Automatically generated by configure - do not modify!
3229
ifndef FFMPEG_CONFIG_MAK
3230
FFMPEG_CONFIG_MAK=1
3231
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
3232
prefix=$prefix
3233
LIBDIR=\$(DESTDIR)$libdir
3234
SHLIBDIR=\$(DESTDIR)$shlibdir
3235
INCDIR=\$(DESTDIR)$incdir
3236
BINDIR=\$(DESTDIR)$bindir
3237
DATADIR=\$(DESTDIR)$datadir
3238
MANDIR=\$(DESTDIR)$mandir
3239
SRC_PATH="$source_path"
3240
SRC_PATH_BARE=$source_path
3241
BUILD_ROOT="$PWD"
3242
CC_IDENT=$cc_ident
3243
ARCH=$arch
3244
CC=$cc
3245
AS=$as
3246
LD=$ld
3247
DEPCC=$dep_cc
3248
YASM=$yasmexe
3249
YASMDEP=$yasmexe
3250
AR=$ar
3251
RANLIB=$ranlib
3252
CP=cp -p
3253
LN_S=$ln_s
3254
STRIP=$strip
3255
CPPFLAGS=$CPPFLAGS
3256
CFLAGS=$CFLAGS
3257
ASFLAGS=$ASFLAGS
3258
CC_O=$CC_O
3259
DLLTOOL=$dlltool
3260
LDFLAGS=$LDFLAGS
3261
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
3262
SHFLAGS=$SHFLAGS
3263
YASMFLAGS=$YASMFLAGS
3264
BUILDSUF=$build_suffix
3265
FULLNAME=$FULLNAME
3266
LIBPREF=$LIBPREF
3267
LIBSUF=$LIBSUF
3268
LIBNAME=$LIBNAME
3269
SLIBPREF=$SLIBPREF
3270
SLIBSUF=$SLIBSUF
3271
EXESUF=$EXESUF
3272
EXTRA_VERSION=$extra_version
3273
DEPFLAGS=$DEPFLAGS
3274
CCDEP=$CCDEP
3275
ASDEP=$ASDEP
3276
CC_DEPFLAGS=$CC_DEPFLAGS
3277
AS_DEPFLAGS=$AS_DEPFLAGS
3278
HOSTCC=$host_cc
3279
HOSTCFLAGS=$host_cflags
3280
HOSTEXESUF=$HOSTEXESUF
3281
HOSTLDFLAGS=$host_ldflags
3282
HOSTLIBS=$host_libs
3283
TARGET_EXEC=$target_exec
3284
TARGET_PATH=$target_path
3285
SDL_LIBS=$sdl_libs
3286
SDL_CFLAGS=$sdl_cflags
3287
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
3288
EXTRALIBS=$extralibs
3289
INSTALL=install
3290
LIBTARGET=${LIBTARGET}
3291
SLIBNAME=${SLIBNAME}
3292
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
3293
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
3294
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
3295
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
3296
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
3297
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
3298
SAMPLES=${samples:-\$(FATE_SAMPLES)}
3299
EOF
3300

    
3301
get_version(){
3302
    name=$1
3303
    file=$source_path/$2
3304
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
3305
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
3306
    lcname=$(tolower $name)
3307
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
3308
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
3309
}
3310

    
3311
get_version LIBSWSCALE  libswscale/swscale.h
3312
get_version LIBPOSTPROC libpostproc/postprocess.h
3313
get_version LIBAVCODEC  libavcodec/version.h
3314
get_version LIBAVDEVICE libavdevice/avdevice.h
3315
get_version LIBAVFORMAT libavformat/version.h
3316
get_version LIBAVUTIL   libavutil/avutil.h
3317
get_version LIBAVFILTER libavfilter/avfilter.h
3318

    
3319
cat > $TMPH <<EOF
3320
/* Automatically generated by configure - do not modify! */
3321
#ifndef FFMPEG_CONFIG_H
3322
#define FFMPEG_CONFIG_H
3323
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
3324
#define FFMPEG_LICENSE "$(c_escape $license)"
3325
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
3326
#define CC_TYPE "$cc_type"
3327
#define CC_VERSION $cc_version
3328
#define restrict $_restrict
3329
#define EXTERN_PREFIX "${extern_prefix}"
3330
#define EXTERN_ASM ${extern_prefix}
3331
#define SLIBSUF "$SLIBSUF"
3332
EOF
3333

    
3334
test -n "$malloc_prefix" &&
3335
    echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
3336

    
3337
if enabled small || disabled optimizations; then
3338
    echo "#undef  av_always_inline"  >> $TMPH
3339
    if enabled small; then
3340
        echo "#define av_always_inline inline"  >> $TMPH
3341
    else
3342
        echo "#define av_always_inline av_unused"  >> $TMPH
3343
    fi
3344
fi
3345

    
3346
if enabled yasm; then
3347
    append config_files $TMPASM
3348
    printf '' >$TMPASM
3349
fi
3350

    
3351
print_config ARCH_   "$config_files" $ARCH_LIST
3352
print_config HAVE_   "$config_files" $HAVE_LIST
3353
print_config CONFIG_ "$config_files" $CONFIG_LIST       \
3354
                                     $CONFIG_EXTRA      \
3355
                                     $DECODER_LIST      \
3356
                                     $ENCODER_LIST      \
3357
                                     $HWACCEL_LIST      \
3358
                                     $PARSER_LIST       \
3359
                                     $BSF_LIST          \
3360
                                     $DEMUXER_LIST      \
3361
                                     $MUXER_LIST        \
3362
                                     $FILTER_LIST       \
3363
                                     $PROTOCOL_LIST     \
3364
                                     $INDEV_LIST        \
3365
                                     $OUTDEV_LIST       \
3366

    
3367
cat >>config.mak <<EOF
3368
ACODEC_TESTS=$(print_enabled -n _test $ACODEC_TESTS)
3369
VCODEC_TESTS=$(print_enabled -n _test $VCODEC_TESTS)
3370
LAVF_TESTS=$(print_enabled   -n _test $LAVF_TESTS)
3371
LAVFI_TESTS=$(print_enabled  -n _test $LAVFI_TESTS)
3372
SEEK_TESTS=$(print_enabled   -n _test $SEEK_TESTS)
3373
EOF
3374

    
3375
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
3376
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
3377

    
3378
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
3379
cp_if_changed $TMPH config.h
3380
touch .config
3381

    
3382
enabled yasm && cp_if_changed $TMPASM config.asm
3383

    
3384
cat > $TMPH <<EOF
3385
/* Generated by ffconf */
3386
#ifndef AVUTIL_AVCONFIG_H
3387
#define AVUTIL_AVCONFIG_H
3388
EOF
3389

    
3390
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
3391

    
3392
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
3393

    
3394
cp_if_changed $TMPH libavutil/avconfig.h
3395

    
3396
test -n "$WARNINGS" && printf "\n$WARNINGS"
3397

    
3398
# build pkg-config files
3399

    
3400
pkgconfig_generate(){
3401
name=$1
3402
shortname=${name#lib}${build_suffix}
3403
comment=$2
3404
version=$3
3405
libs=$4
3406
requires=$5
3407
enabled ${name#lib} || return 0
3408
cat <<EOF > $name/$name.pc
3409
prefix=$prefix
3410
exec_prefix=\${prefix}
3411
libdir=$libdir
3412
includedir=$incdir
3413

    
3414
Name: $name
3415
Description: $comment
3416
Version: $version
3417
Requires: $(enabled shared || echo $requires)
3418
Requires.private: $(enabled shared && echo $requires)
3419
Conflicts:
3420
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
3421
Libs.private: $(enabled shared && echo $libs)
3422
Cflags: -I\${includedir}
3423
EOF
3424
cat <<EOF > $name/$name-uninstalled.pc
3425
prefix=
3426
exec_prefix=
3427
libdir=\${pcfiledir}
3428
includedir=${source_path}
3429

    
3430
Name: $name
3431
Description: $comment
3432
Version: $version
3433
Requires: $requires
3434
Conflicts:
3435
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
3436
Cflags: -I\${includedir}
3437
EOF
3438
}
3439

    
3440
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
3441
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs"
3442
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
3443
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
3444
pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs"
3445
pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
3446
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"