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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
13

    
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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
16

    
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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

    
57
show_help(){
58
cat <<EOF
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Usage: configure [options]
60
Options: [defaults in brackets after descriptions]
61

    
62
Standard options:
63
  --help                   print this message
64
  --logfile=FILE           log tests and output to FILE [config.err]
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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:
75
  --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
78
                           and binaries will be under GPL [no]
79
  --enable-version3        upgrade (L)GPL to version 3 [no]
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  --enable-nonfree         allow use of nonfree code, the resulting libs
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                           and binaries will be unredistributable [no]
82
  --disable-doc            do not build documentation
83
  --disable-ffmpeg         disable ffmpeg build
84
  --disable-ffplay         disable ffplay build
85
  --disable-ffserver       disable ffserver build
86
  --enable-postproc        enable GPLed postprocessing support [no]
87
  --enable-avfilter        video filter support [no]
88
  --enable-avfilter-lavf   video filters dependent on avformat [no]
89
  --enable-beosthreads     use BeOS threads [no]
90
  --enable-os2threads      use OS/2 threads [no]
91
  --enable-pthreads        use pthreads [no]
92
  --enable-w32threads      use Win32 threads [no]
93
  --enable-x11grab         enable X11 grabbing [no]
94
  --disable-network        disable network support [no]
95
  --disable-ipv6           disable IPv6 support [no]
96
  --disable-mpegaudio-hp   faster (but less accurate) MPEG audio decoding [no]
97
  --enable-gray            enable full grayscale support (slower color)
98
  --disable-swscale-alpha  disable alpha channel support in swscale
99
  --disable-fastdiv        disable table-based division
100
  --enable-small           optimize for size instead of speed
101
  --disable-aandct         disable AAN DCT code
102
  --disable-fft            disable FFT code
103
  --disable-golomb         disable Golomb code
104
  --disable-lpc            disable LPC code
105
  --disable-mdct           disable MDCT code
106
  --disable-rdft           disable RDFT code
107
  --disable-vaapi          disable VAAPI code
108
  --disable-vdpau          disable VDPAU code
109
  --enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
110
  --enable-hardcoded-tables use hardcoded tables instead of runtime generation
111
  --enable-memalign-hack   emulate memalign, interferes with memory debuggers
112
  --enable-beos-netserver  enable BeOS netserver
113
  --disable-encoder=NAME   disable encoder NAME
114
  --enable-encoder=NAME    enable encoder NAME
115
  --disable-encoders       disable all encoders
116
  --disable-decoder=NAME   disable decoder NAME
117
  --enable-decoder=NAME    enable decoder NAME
118
  --disable-decoders       disable all decoders
119
  --disable-hwaccel=NAME   disable hwaccel NAME
120
  --enable-hwaccel=NAME    enable hwaccel NAME
121
  --disable-hwaccels       disable all hwaccels
122
  --disable-muxer=NAME     disable muxer NAME
123
  --enable-muxer=NAME      enable muxer NAME
124
  --disable-muxers         disable all muxers
125
  --disable-demuxer=NAME   disable demuxer NAME
126
  --enable-demuxer=NAME    enable demuxer NAME
127
  --disable-demuxers       disable all demuxers
128
  --enable-parser=NAME     enable parser NAME
129
  --disable-parser=NAME    disable parser NAME
130
  --disable-parsers        disable all parsers
131
  --enable-bsf=NAME        enable bitstream filter NAME
132
  --disable-bsf=NAME       disable bitstream filter NAME
133
  --disable-bsfs           disable all bitstream filters
134
  --enable-protocol=NAME   enable protocol NAME
135
  --disable-protocol=NAME  disable protocol NAME
136
  --disable-protocols      disable all protocols
137
  --disable-indev=NAME     disable input device NAME
138
  --disable-outdev=NAME    disable output device NAME
139
  --disable-indevs         disable input devices
140
  --disable-outdevs        disable output devices
141
  --disable-devices        disable all devices
142
  --enable-filter=NAME     enable filter NAME
143
  --disable-filter=NAME    disable filter NAME
144
  --disable-filters        disable all filters
145
  --list-decoders          show all available decoders
146
  --list-encoders          show all available encoders
147
  --list-hwaccels          show all available hardware accelerators
148
  --list-muxers            show all available muxers
149
  --list-demuxers          show all available demuxers
150
  --list-parsers           show all available parsers
151
  --list-protocols         show all available protocols
152
  --list-bsfs              show all available bitstream filters
153
  --list-indevs            show all available input devices
154
  --list-outdevs           show all available output devices
155
  --list-filters           show all available filters
156

    
157
External library support:
158
  --enable-avisynth        enable reading of AVISynth script files [no]
159
  --enable-bzlib           enable bzlib [autodetect]
160
  --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
161
  --enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
162
  --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
163
                           and libraw1394 [no]
164
  --enable-libdirac        enable Dirac support via libdirac [no]
165
  --enable-libfaac         enable FAAC support via libfaac [no]
166
  --enable-libfaad         enable FAAD support via libfaad [no]
167
  --enable-libfaadbin      open libfaad.so.0 at runtime [no]
168
  --enable-libgsm          enable GSM support via libgsm [no]
169
  --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
170
  --enable-libnut          enable NUT (de)muxing via libnut,
171
                           native (de)muxer exists [no]
172
  --enable-libopenjpeg     enable JPEG 2000 decoding via OpenJPEG [no]
173
  --enable-libschroedinger enable Dirac support via libschroedinger [no]
174
  --enable-libspeex        enable Speex decoding via libspeex [no]
175
  --enable-libtheora       enable Theora encoding via libtheora [no]
176
  --enable-libvorbis       enable Vorbis encoding via libvorbis,
177
                           native implementation exists [no]
178
  --enable-libx264         enable H.264 encoding via x264 [no]
179
  --enable-libxvid         enable Xvid encoding via xvidcore,
180
                           native MPEG-4/Xvid encoder exists [no]
181
  --enable-mlib            enable Sun medialib [no]
182
  --enable-zlib            enable zlib [autodetect]
183

    
184
Advanced options (experts only):
185
  --source-path=PATH       path to source code [$source_path]
186
  --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
187
  --enable-cross-compile   assume a cross-compiler is used
188
  --sysroot=PATH           root of cross-build tree
189
  --sysinclude=PATH        location of cross-build system headers
190
  --target-os=OS           compiler targets OS [$target_os]
191
  --target-exec=CMD        command to run executables on target
192
  --target-path=DIR        path to view of build directory on target
193
  --nm=NM                  use nm tool
194
  --as=AS                  use assembler AS [$as_default]
195
  --cc=CC                  use C compiler CC [$cc_default]
196
  --ld=LD                  use linker LD
197
  --host-cc=HOSTCC         use host C compiler HOSTCC
198
  --host-cflags=HCFLAGS    use HCFLAGS when compiling for host
199
  --host-ldflags=HLDFLAGS  use HLDFLAGS when linking for host
200
  --host-libs=HLIBS        use libs HLIBS when linking for host
201
  --extra-cflags=ECFLAGS   add ECFLAGS to CFLAGS [$CFLAGS]
202
  --extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
203
  --extra-libs=ELIBS       add ELIBS [$ELIBS]
204
  --extra-version=STRING   version string suffix []
205
  --build-suffix=SUFFIX    library name suffix []
206
  --arch=ARCH              select architecture [$arch]
207
  --cpu=CPU                select the minimum required CPU (affects
208
                           instruction selection, may crash on older CPUs)
209
  --enable-powerpc-perf    enable performance report on PPC
210
                           (requires enabling PMC)
211
  --disable-altivec        disable AltiVec optimizations
212
  --disable-amd3dnow       disable 3DNow! optimizations
213
  --disable-amd3dnowext    disable 3DNow! extended optimizations
214
  --disable-mmx            disable MMX optimizations
215
  --disable-mmx2           disable MMX2 optimizations
216
  --disable-sse            disable SSE optimizations
217
  --disable-ssse3          disable SSSE3 optimizations
218
  --disable-armv5te        disable armv5te optimizations
219
  --disable-armv6          disable armv6 optimizations
220
  --disable-armv6t2        disable armv6t2 optimizations
221
  --disable-armvfp         disable ARM VFP optimizations
222
  --disable-iwmmxt         disable iwmmxt optimizations
223
  --disable-mmi            disable MMI optimizations
224
  --disable-neon           disable neon optimizations
225
  --disable-vis            disable VIS optimizations
226
  --disable-yasm           disable use of yasm assembler
227
  --enable-pic             build position-independent code
228

    
229
Developer options (useful when working on FFmpeg itself):
230
  --disable-debug          disable debugging symbols
231
  --enable-debug=LEVEL     set the debug level [$debuglevel]
232
  --enable-gprof           enable profiling with gprof [$gprof]
233
  --disable-optimizations  disable compiler optimizations
234
  --enable-extra-warnings  enable more compiler warnings
235
  --disable-stripping      disable stripping of executables and shared libraries
236

    
237
NOTE: Object files are built at the place where configure is launched.
238
EOF
239
  exit 0
240
}
241

    
242
log(){
243
    echo "$@" >> $logfile
244
}
245

    
246
log_file(){
247
    log BEGIN $1
248
    pr -n -t $1 >> $logfile
249
    log END $1
250
}
251

    
252
echolog(){
253
    log "$@"
254
    echo "$@"
255
}
256

    
257
die(){
258
    echolog "$@"
259
    cat <<EOF
260

    
261
If you think configure made a mistake, make sure you are using the latest
262
version from SVN.  If the latest version fails, report the problem to the
263
ffmpeg-user@mplayerhq.hu mailing list or IRC #ffmpeg on irc.freenode.net.
264
EOF
265
    if disabled logging; then
266
        cat <<EOF
267
Rerun configure with logging enabled (do not use --disable-logging), and
268
include the log this produces with your report.
269
EOF
270
    else
271
cat <<EOF
272
Include the log file "$logfile" produced by configure as this will help
273
solving the problem.
274
EOF
275
    fi
276
    exit 1
277
}
278

    
279
# Avoid locale weirdness, besides we really just want to translate ASCII.
280
toupper(){
281
    echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
282
}
283

    
284
tolower(){
285
    echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
286
}
287

    
288
c_escape(){
289
    echo "$*" | sed 's/["\\]/\\\0/g'
290
}
291

    
292
sh_quote(){
293
    v=$(echo "$1" | sed "s/'/'\\\\''/g")
294
    test "$v" = "${v#*[ |&;<>()$\`\\\"\'*?\[\]#~=%]}" || v="'$v'"
295
    echo "$v"
296
}
297

    
298
filter(){
299
    pat=$1
300
    shift
301
    for v; do
302
        eval "case $v in $pat) echo $v ;; esac"
303
    done
304
}
305

    
306
set_all(){
307
    value=$1
308
    shift
309
    for var in $*; do
310
        eval $var=$value
311
    done
312
}
313

    
314
set_weak(){
315
    value=$1
316
    shift
317
    for var; do
318
        eval : \${$var:=$value}
319
    done
320
}
321

    
322
pushvar(){
323
    for var in $*; do
324
        eval level=\${${var}_level:=0}
325
        eval ${var}_${level}="\$$var"
326
        eval ${var}_level=$(($level+1))
327
    done
328
}
329

    
330
popvar(){
331
    for var in $*; do
332
        eval level=\${${var}_level:-0}
333
        test $level = 0 && continue
334
        eval level=$(($level-1))
335
        eval $var="\${${var}_${level}}"
336
        eval ${var}_level=$level
337
        eval unset ${var}_${level}
338
    done
339
}
340

    
341
enable(){
342
    set_all yes $*
343
}
344

    
345
disable(){
346
    set_all no $*
347
}
348

    
349
enable_weak(){
350
    set_weak yes $*
351
}
352

    
353
disable_weak(){
354
    set_weak no $*
355
}
356

    
357
enable_safe(){
358
    for var; do
359
        enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
360
    done
361
}
362

    
363
disable_safe(){
364
    for var; do
365
        disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
366
    done
367
}
368

    
369
do_enable_deep(){
370
    for var; do
371
        enabled $var && continue
372
        eval sel="\$${var}_select"
373
        eval sgs="\$${var}_suggest"
374
        pushvar var sgs
375
        enable_deep $sel
376
        popvar sgs
377
        enable_deep_weak $sgs
378
        popvar var
379
    done
380
}
381

    
382
enable_deep(){
383
    do_enable_deep $*
384
    enable $*
385
}
386

    
387
enable_deep_weak(){
388
    do_enable_deep $*
389
    enable_weak $*
390
}
391

    
392
enabled(){
393
    test "${1#!}" = "$1" && op== || op=!=
394
    eval test "x\$${1#!}" $op "xyes"
395
}
396

    
397
disabled(){
398
    test "${1#!}" = "$1" && op== || op=!=
399
    eval test "x\$${1#!}" $op "xno"
400
}
401

    
402
enabled_all(){
403
    for opt; do
404
        enabled $opt || return 1
405
    done
406
}
407

    
408
disabled_all(){
409
    for opt; do
410
        disabled $opt || return 1
411
    done
412
}
413

    
414
enabled_any(){
415
    for opt; do
416
        enabled $opt && return 0
417
    done
418
}
419

    
420
disabled_any(){
421
    for opt; do
422
        disabled $opt && return 0
423
    done
424
    return 1
425
}
426

    
427
set_default(){
428
    for opt; do
429
        eval : \${$opt:=\$${opt}_default}
430
    done
431
}
432

    
433
is_in(){
434
    value=$1
435
    shift
436
    for var in $*; do
437
        [ $var = $value ] && return 0
438
    done
439
    return 1
440
}
441

    
442
check_deps(){
443
    for cfg; do
444
        cfg="${cfg#!}"
445
        enabled ${cfg}_checking && die "Circular dependency for $cfg."
446
        disabled ${cfg}_checking && continue
447
        enable ${cfg}_checking
448

    
449
        eval dep_all="\$${cfg}_deps"
450
        eval dep_any="\$${cfg}_deps_any"
451
        eval dep_sel="\$${cfg}_select"
452
        eval dep_sgs="\$${cfg}_suggest"
453
        eval dep_ifa="\$${cfg}_if"
454
        eval dep_ifn="\$${cfg}_if_any"
455

    
456
        pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
457
        check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
458
        popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
459

    
460
        [ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
461
        [ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
462
        enabled_all  $dep_all || disable $cfg
463
        enabled_any  $dep_any || disable $cfg
464
        disabled_any $dep_sel && disable $cfg
465

    
466
        if enabled $cfg; then
467
            eval dep_extralibs="\$${cfg}_extralibs"
468
            test -n "$dep_extralibs" && add_extralibs $dep_extralibs
469
            enable_deep $dep_sel
470
            enable_deep_weak $dep_sgs
471
        fi
472

    
473
        disable ${cfg}_checking
474
    done
475
}
476

    
477
print_config(){
478
    pfx=$1
479
    header=$2
480
    makefile=$3
481
    shift 3
482
    for cfg; do
483
        ucname="$(toupper $cfg)"
484
        if enabled $cfg; then
485
            echo "#define ${pfx}${ucname} 1" >> $header
486
            echo "${pfx}${ucname}=yes" >> $makefile
487
        else
488
            echo "#define ${pfx}${ucname} 0" >> $header
489
            echo "!${pfx}${ucname}=yes" >> $makefile
490
        fi
491
    done
492
}
493

    
494
flags_saved(){
495
    (: ${SAVE_CFLAGS?}) 2> /dev/null
496
}
497

    
498
save_flags(){
499
    flags_saved && return
500
    SAVE_CFLAGS="$CFLAGS"
501
    SAVE_LDFLAGS="$LDFLAGS"
502
    SAVE_extralibs="$extralibs"
503
}
504

    
505
restore_flags(){
506
    flags_saved || return
507
    CFLAGS="$SAVE_CFLAGS"
508
    LDFLAGS="$SAVE_LDFLAGS"
509
    extralibs="$SAVE_extralibs"
510
    unset SAVE_CFLAGS
511
    unset SAVE_LDFLAGS
512
    unset SAVE_extralibs
513
}
514

    
515
temp_cflags(){
516
    save_flags
517
    CFLAGS="$CFLAGS $*"
518
}
519

    
520
temp_ldflags(){
521
    save_flags
522
    LDFLAGS="$LDFLAGS $*"
523
}
524

    
525
temp_extralibs(){
526
    save_flags
527
    extralibs="$extralibs $*"
528
}
529

    
530
append(){
531
    var=$1
532
    shift
533
    flags_saved && eval "SAVE_$var=\"\$SAVE_$var $*\""
534
    eval "$var=\"\$$var $*\""
535
}
536

    
537
add_cppflags(){
538
    append CPPFLAGS $($filter_cppflags "$@")
539
}
540

    
541
add_cflags(){
542
    append CFLAGS $($filter_cflags "$@")
543
}
544

    
545
add_asflags(){
546
    append ASFLAGS $($filter_asflags "$@")
547
}
548

    
549
add_ldflags(){
550
    append LDFLAGS "$@"
551
}
552

    
553
add_extralibs(){
554
    append extralibs "$@"
555
}
556

    
557
check_cmd(){
558
    log "$@"
559
    "$@" >> $logfile 2>&1
560
}
561

    
562
check_cc(){
563
    log check_cc "$@"
564
    cat > $TMPC
565
    log_file $TMPC
566
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -c -o $TMPO $TMPC
567
}
568

    
569
check_cpp(){
570
    log check_cpp "$@"
571
    cat > $TMPC
572
    log_file $TMPC
573
    check_cmd $cc $CPPFLAGS $CFLAGS "$@" -E -o $TMPO $TMPC
574
}
575

    
576
check_as(){
577
    log check_as "$@"
578
    cat > $TMPC
579
    log_file $TMPC
580
    check_cmd $as $CPPFLAGS $ASFLAGS "$@" -c -o $TMPO $TMPC
581
}
582

    
583
check_asm(){
584
    log check_asm "$@"
585
    name="$1"
586
    asm="$2"
587
    shift 2
588
    disable $name
589
    check_as "$@" <<EOF && enable $name
590
void foo(void){ __asm__ volatile($asm); }
591
EOF
592
}
593

    
594
check_yasm(){
595
    log check_yasm "$@"
596
    echo "$1" > $TMPS
597
    log_file $TMPS
598
    shift 1
599
    check_cmd $yasmexe $YASMFLAGS "$@" -o $TMPO $TMPS
600
}
601

    
602
check_ld(){
603
    log check_ld "$@"
604
    flags=''
605
    libs=''
606
    for f; do
607
        test "${f}" = "${f#-l}" && flags="$flags $f" || libs="$libs $f"
608
    done
609
    check_cc $($filter_cflags $flags) || return
610
    check_cmd $ld $LDFLAGS $flags -o $TMPE $TMPO $extralibs $libs
611
}
612

    
613
check_cppflags(){
614
    log check_cppflags "$@"
615
    set -- $($filter_cppflags "$@")
616
    check_cc "$@" <<EOF && append CPPFLAGS "$@"
617
int x;
618
EOF
619
}
620

    
621
check_cflags(){
622
    log check_cflags "$@"
623
    set -- $($filter_cflags "$@")
624
    check_cc "$@" <<EOF && append CFLAGS "$@"
625
int x;
626
EOF
627
}
628

    
629
test_ldflags(){
630
    log test_ldflags "$@"
631
    check_ld "$@" <<EOF
632
int main(void){ return 0; }
633
EOF
634
}
635

    
636
check_ldflags(){
637
    log check_ldflags "$@"
638
    test_ldflags "$@" && add_ldflags "$@"
639
}
640

    
641
check_header(){
642
    log check_header "$@"
643
    header=$1
644
    shift
645
    disable_safe $header
646
    check_cpp "$@" <<EOF && enable_safe $header
647
#include <$header>
648
int x;
649
EOF
650
}
651

    
652
check_func(){
653
    log check_func "$@"
654
    func=$1
655
    shift
656
    disable $func
657
    check_ld "$@" <<EOF && enable $func
658
extern int $func();
659
int main(void){ $func(); }
660
EOF
661
}
662

    
663
check_func_headers(){
664
    log check_func_headers "$@"
665
    headers=$1
666
    func=$2
667
    shift 2
668
    disable $func
669
    incs=""
670
    for hdr in $headers; do
671
        incs="$incs
672
#include <$hdr>"
673
    done
674
    check_ld "$@" <<EOF && enable $func && enable_safe $headers
675
$incs
676
int main(int argc, char **argv){
677
    return (long) $func;
678
}
679
EOF
680
}
681

    
682
check_cpp_condition(){
683
    log check_cpp_condition "$@"
684
    header=$1
685
    condition=$2
686
    shift 2
687
    check_cpp $($filter_cppflags "$@") <<EOF
688
#include <$header>
689
#if !($condition)
690
#error "unsatisfied condition: $condition"
691
#endif
692
EOF
693
}
694

    
695
check_lib(){
696
    log check_lib "$@"
697
    header="$1"
698
    func="$2"
699
    shift 2
700
    temp_extralibs "$@"
701
    check_header $header && check_func $func && add_extralibs "$@"
702
    err=$?
703
    restore_flags
704
    return $err
705
}
706

    
707
check_lib2(){
708
    log check_lib2 "$@"
709
    headers="$1"
710
    func="$2"
711
    shift 2
712
    check_func_headers "$headers" $func "$@" && add_extralibs "$@"
713
}
714

    
715
check_exec(){
716
    check_ld "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
717
}
718

    
719
check_exec_crash(){
720
    code=$(cat)
721

    
722
    # exit() is not async signal safe.  _Exit (C99) and _exit (POSIX)
723
    # are safe but may not be available everywhere.  Thus we use
724
    # raise(SIGTERM) instead.  The check is run in a subshell so we
725
    # can redirect the "Terminated" message from the shell.  SIGBUS
726
    # is not defined by standard C so it is used conditionally.
727

    
728
    (check_exec "$@") >> $logfile 2>&1 <<EOF
729
#include <signal.h>
730
static void sighandler(int sig){
731
    raise(SIGTERM);
732
}
733
int main(void){
734
    signal(SIGILL, sighandler);
735
    signal(SIGFPE, sighandler);
736
    signal(SIGSEGV, sighandler);
737
#ifdef SIGBUS
738
    signal(SIGBUS, sighandler);
739
#endif
740
    { $code }
741
}
742
EOF
743
}
744

    
745
check_type(){
746
    log check_type "$@"
747
    headers=$1
748
    type=$2
749
    shift 2
750
    disable_safe "$type"
751
    incs=""
752
    for hdr in $headers; do
753
        incs="$incs
754
#include <$hdr>"
755
    done
756
    check_cc "$@" <<EOF && enable_safe "$type"
757
$incs
758
$type v;
759
EOF
760
}
761

    
762
check_struct(){
763
    log check_type "$@"
764
    headers=$1
765
    struct=$2
766
    member=$3
767
    shift 3
768
    disable_safe "${struct}_${member}"
769
    incs=""
770
    for hdr in $headers; do
771
        incs="$incs
772
#include <$hdr>"
773
    done
774
    check_cc "$@" <<EOF && enable_safe "${struct}_${member}"
775
$incs
776
const void *p = &(($struct *)0)->$member;
777
EOF
778
}
779

    
780
require(){
781
    name="$1"
782
    header="$2"
783
    func="$3"
784
    shift 3
785
    check_lib $header $func "$@" || die "ERROR: $name not found"
786
}
787

    
788
require2(){
789
    name="$1"
790
    headers="$2"
791
    func="$3"
792
    shift 3
793
    check_lib2 "$headers" $func "$@" || die "ERROR: $name not found"
794
}
795

    
796
check_foo_config(){
797
    cfg=$1
798
    pkg=$2
799
    header=$3
800
    func=$4
801
    shift 4
802
    disable $cfg
803
    check_cmd ${pkg}-config --version
804
    err=$?
805
    if test "$err" = 0; then
806
        temp_cflags $(${pkg}-config --cflags)
807
        temp_extralibs $(${pkg}-config --libs)
808
        check_lib "$@" $header $func && enable $cfg
809
    fi
810
    return $err
811
}
812

    
813
check_host_cc(){
814
    log check_host_cc "$@"
815
    cat > $TMPC
816
    log_file $TMPC
817
    check_cmd $host_cc $host_cflags "$@" -c -o $TMPO $TMPC
818
}
819

    
820
check_host_cflags(){
821
    log check_host_cflags "$@"
822
    check_host_cc "$@" <<EOF && append host_cflags "$@"
823
int x;
824
EOF
825
}
826

    
827
apply(){
828
    file=$1
829
    shift
830
    "$@" < "$file" > "$file.tmp" && mv "$file.tmp" "$file" || rm "$file.tmp"
831
}
832

    
833
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
834
# system-dependent things.
835

    
836
COMPONENT_LIST="
837
    bsfs
838
    decoders
839
    demuxers
840
    encoders
841
    filters
842
    hwaccels
843
    indevs
844
    muxers
845
    outdevs
846
    parsers
847
    protocols
848
"
849

    
850
CONFIG_LIST="
851
    $COMPONENT_LIST
852
    aandct
853
    avfilter
854
    avfilter_lavf
855
    avisynth
856
    beos_netserver
857
    bzlib
858
    doc
859
    fastdiv
860
    ffmpeg
861
    ffplay
862
    ffserver
863
    fft
864
    golomb
865
    gpl
866
    gprof
867
    gray
868
    hardcoded_tables
869
    ipv6
870
    libdc1394
871
    libdirac
872
    libfaac
873
    libfaad
874
    libfaadbin
875
    libgsm
876
    libmp3lame
877
    libnut
878
    libopencore_amrnb
879
    libopencore_amrwb
880
    libopenjpeg
881
    libschroedinger
882
    libspeex
883
    libtheora
884
    libvorbis
885
    libx264
886
    libxvid
887
    lpc
888
    mdct
889
    memalign_hack
890
    mlib
891
    mpegaudio_hp
892
    network
893
    nonfree
894
    pic
895
    postproc
896
    powerpc_perf
897
    rdft
898
    runtime_cpudetect
899
    shared
900
    small
901
    static
902
    swscale_alpha
903
    vaapi
904
    vdpau
905
    version3
906
    x11grab
907
    zlib
908
"
909

    
910
THREADS_LIST='
911
    beosthreads
912
    os2threads
913
    pthreads
914
    w32threads
915
'
916

    
917
ARCH_LIST='
918
    alpha
919
    arm
920
    avr32
921
    avr32_ap
922
    avr32_uc
923
    bfin
924
    ia64
925
    m68k
926
    mips
927
    mips64
928
    parisc
929
    ppc
930
    ppc64
931
    s390
932
    sh4
933
    sparc
934
    sparc64
935
    x86
936
    x86_32
937
    x86_64
938
'
939

    
940
ARCH_EXT_LIST='
941
    altivec
942
    amd3dnow
943
    amd3dnowext
944
    armv5te
945
    armv6
946
    armv6t2
947
    armvfp
948
    iwmmxt
949
    mmi
950
    mmx
951
    mmx2
952
    neon
953
    ppc4xx
954
    sse
955
    ssse3
956
    vis
957
'
958

    
959
HAVE_LIST="
960
    $ARCH_EXT_LIST
961
    $THREADS_LIST
962
    alsa_asoundlib_h
963
    altivec_h
964
    arpa_inet_h
965
    attribute_packed
966
    bigendian
967
    bswap
968
    closesocket
969
    cmov
970
    conio_h
971
    dcbzl
972
    dev_bktr_ioctl_bt848_h
973
    dev_bktr_ioctl_meteor_h
974
    dev_ic_bt8xx_h
975
    dev_video_meteor_ioctl_meteor_h
976
    dev_video_bktr_ioctl_bt848_h
977
    dlfcn_h
978
    dlopen
979
    dos_paths
980
    ebp_available
981
    ebx_available
982
    exp2
983
    exp2f
984
    fast_64bit
985
    fast_clz
986
    fast_cmov
987
    fast_unaligned
988
    fork
989
    getaddrinfo
990
    gethrtime
991
    GetProcessTimes
992
    getrusage
993
    inet_aton
994
    inline_asm
995
    isatty
996
    ldbrx
997
    libdc1394_1
998
    libdc1394_2
999
    llrint
1000
    log2
1001
    log2f
1002
    loongson
1003
    lrint
1004
    lrintf
1005
    lzo1x_999_compress
1006
    machine_ioctl_bt848_h
1007
    machine_ioctl_meteor_h
1008
    malloc_h
1009
    memalign
1010
    mkstemp
1011
    pld
1012
    posix_memalign
1013
    round
1014
    roundf
1015
    sdl
1016
    sdl_video_size
1017
    setmode
1018
    socklen_t
1019
    soundcard_h
1020
    poll_h
1021
    struct_addrinfo
1022
    struct_sockaddr_storage
1023
    sys_mman_h
1024
    sys_resource_h
1025
    sys_select_h
1026
    sys_soundcard_h
1027
    sys_videoio_h
1028
    ten_operands
1029
    termios_h
1030
    threads
1031
    truncf
1032
    vfp_args
1033
    VirtualAlloc
1034
    winsock2_h
1035
    xform_asm
1036
    yasm
1037
"
1038

    
1039
# options emitted with CONFIG_ prefix but not available on command line
1040
CONFIG_EXTRA="
1041
    gplv3
1042
    lgplv3
1043
"
1044

    
1045
CMDLINE_SELECT="
1046
    $ARCH_EXT_LIST
1047
    $CONFIG_LIST
1048
    $THREADS_LIST
1049
    cross_compile
1050
    debug
1051
    extra_warnings
1052
    logging
1053
    optimizations
1054
    stripping
1055
    yasm
1056
"
1057

    
1058
PATHS_LIST='
1059
    bindir
1060
    datadir
1061
    incdir
1062
    libdir
1063
    mandir
1064
    prefix
1065
    shlibdir
1066
'
1067

    
1068
CMDLINE_SET="
1069
    $PATHS_LIST
1070
    arch
1071
    as
1072
    build_suffix
1073
    cc
1074
    cpu
1075
    cross_prefix
1076
    dep_cc
1077
    extra_version
1078
    host_cc
1079
    host_cflags
1080
    host_ldflags
1081
    host_libs
1082
    host_os
1083
    ld
1084
    logfile
1085
    nm
1086
    source_path
1087
    sysinclude
1088
    sysroot
1089
    target_exec
1090
    target_os
1091
    target_path
1092
"
1093

    
1094
CMDLINE_APPEND="
1095
    extra_cflags
1096
"
1097

    
1098
# code dependency declarations
1099

    
1100
# architecture extensions
1101

    
1102
armv5te_deps="arm"
1103
armv6_deps="arm"
1104
armv6t2_deps="arm"
1105
armvfp_deps="arm"
1106
iwmmxt_deps="arm"
1107
neon_deps="arm"
1108

    
1109
mmi_deps="mips"
1110

    
1111
altivec_deps="ppc"
1112
ppc4xx_deps="ppc"
1113

    
1114
vis_deps="sparc"
1115

    
1116
x86_64_select="cmov fast_cmov"
1117
amd3dnow_deps="mmx"
1118
amd3dnowext_deps="amd3dnow"
1119
mmx_deps="x86"
1120
mmx2_deps="mmx"
1121
sse_deps="mmx"
1122
ssse3_deps="sse"
1123

    
1124
fast_64bit_if_any="alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
1125
fast_clz_if_any="alpha armv5te avr32 mips ppc x86"
1126
fast_unaligned_if_any="armv6 ppc x86"
1127

    
1128
need_memalign="altivec neon sse"
1129
inline_asm_deps="!tms470"
1130

    
1131
# decoders / encoders / hardware accelerators
1132
aac_decoder_select="fft mdct aac_parser"
1133
aac_encoder_select="fft mdct"
1134
ac3_decoder_select="fft mdct ac3_parser"
1135
alac_encoder_select="lpc"
1136
atrac3_decoder_select="fft mdct"
1137
cavs_decoder_select="golomb"
1138
cook_decoder_select="fft mdct"
1139
cscd_decoder_suggest="zlib"
1140
dca_decoder_select="fft mdct"
1141
dnxhd_encoder_select="aandct"
1142
dxa_decoder_select="zlib"
1143
eac3_decoder_select="ac3_decoder"
1144
eamad_decoder_select="aandct"
1145
eatgq_decoder_select="aandct"
1146
eatqi_decoder_select="aandct"
1147
ffv1_decoder_select="golomb"
1148
flac_decoder_select="golomb"
1149
flac_encoder_select="golomb lpc"
1150
flashsv_decoder_select="zlib"
1151
flashsv_encoder_select="zlib"
1152
flv_decoder_select="h263_decoder"
1153
flv_encoder_select="h263_encoder"
1154
h261_encoder_select="aandct"
1155
h263_decoder_select="h263_parser"
1156
h263_encoder_select="aandct"
1157
h263_vaapi_hwaccel_deps="va_va_h"
1158
h263_vaapi_hwaccel_select="vaapi h263_decoder"
1159
h263i_decoder_select="h263_decoder"
1160
h263p_encoder_select="h263_encoder"
1161
h264_decoder_select="golomb"
1162
h264_vaapi_hwaccel_deps="va_va_h"
1163
h264_vaapi_hwaccel_select="vaapi"
1164
h264_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1165
h264_vdpau_decoder_select="vdpau h264_decoder"
1166
imc_decoder_select="fft mdct"
1167
jpegls_decoder_select="golomb"
1168
jpegls_encoder_select="golomb"
1169
ljpeg_encoder_select="aandct"
1170
loco_decoder_select="golomb"
1171
mjpeg_encoder_select="aandct"
1172
mlp_decoder_select="mlp_parser"
1173
mpeg1video_encoder_select="aandct"
1174
mpeg2video_encoder_select="aandct"
1175
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
1176
mpeg4_encoder_select="h263_encoder"
1177
mpeg_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1178
mpeg_vdpau_decoder_select="vdpau mpegvideo_decoder"
1179
mpeg1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1180
mpeg1_vdpau_decoder_select="vdpau mpeg1video_decoder"
1181
mpeg2_vaapi_hwaccel_deps="va_va_h"
1182
mpeg2_vaapi_hwaccel_select="vaapi mpeg2video_decoder"
1183
mpeg4_vaapi_hwaccel_deps="va_va_h"
1184
mpeg4_vaapi_hwaccel_select="vaapi mpeg4_decoder"
1185
mpeg4_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1186
mpeg4_vdpau_decoder_select="vdpau mpeg4_decoder"
1187
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
1188
mpeg_xvmc_decoder_select="mpegvideo_decoder"
1189
msmpeg4v1_decoder_select="h263_decoder"
1190
msmpeg4v1_encoder_select="h263_encoder"
1191
msmpeg4v2_decoder_select="h263_decoder"
1192
msmpeg4v2_encoder_select="h263_encoder"
1193
msmpeg4v3_decoder_select="h263_decoder"
1194
msmpeg4v3_encoder_select="h263_encoder"
1195
nellymoser_decoder_select="fft mdct"
1196
nellymoser_encoder_select="fft mdct"
1197
png_decoder_select="zlib"
1198
png_encoder_select="zlib"
1199
qdm2_decoder_select="fft mdct rdft"
1200
rv10_decoder_select="h263_decoder"
1201
rv10_encoder_select="h263_encoder"
1202
rv20_decoder_select="h263_decoder"
1203
rv20_encoder_select="h263_encoder"
1204
rv30_decoder_select="golomb"
1205
rv40_decoder_select="golomb"
1206
shorten_decoder_select="golomb"
1207
sonic_decoder_select="golomb"
1208
sonic_encoder_select="golomb"
1209
sonic_ls_encoder_select="golomb"
1210
svq3_decoder_select="golomb"
1211
svq3_decoder_suggest="zlib"
1212
theora_decoder_select="vp3_decoder"
1213
tiff_decoder_suggest="zlib"
1214
tiff_encoder_suggest="zlib"
1215
truehd_decoder_select="mlp_decoder"
1216
tscc_decoder_select="zlib"
1217
vc1_decoder_select="h263_decoder"
1218
vc1_vaapi_hwaccel_deps="va_va_h"
1219
vc1_vaapi_hwaccel_select="vaapi vc1_decoder"
1220
vc1_vdpau_decoder_deps="vdpau_vdpau_h vdpau_vdpau_x11_h"
1221
vc1_vdpau_decoder_select="vdpau vc1_decoder"
1222
vorbis_decoder_select="fft mdct"
1223
vorbis_encoder_select="fft mdct"
1224
vp6a_decoder_select="vp6_decoder"
1225
vp6f_decoder_select="vp6_decoder"
1226
wmav1_decoder_select="fft mdct"
1227
wmav1_encoder_select="fft mdct"
1228
wmav2_decoder_select="fft mdct"
1229
wmav2_encoder_select="fft mdct"
1230
wmv1_decoder_select="h263_decoder"
1231
wmv1_encoder_select="h263_encoder"
1232
wmv2_decoder_select="h263_decoder"
1233
wmv2_encoder_select="h263_encoder"
1234
wmv3_decoder_select="vc1_decoder"
1235
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
1236
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
1237
zlib_decoder_select="zlib"
1238
zlib_encoder_select="zlib"
1239
zmbv_decoder_select="zlib"
1240
zmbv_encoder_select="zlib"
1241

    
1242
# parsers
1243
h264_parser_select="golomb"
1244

    
1245
# bitstream_filters
1246
aac_adtstoasc_bsf_select="aac_parser"
1247

    
1248
# external libraries
1249
libdirac_decoder_deps="libdirac !libschroedinger"
1250
libdirac_encoder_deps="libdirac"
1251
libfaac_encoder_deps="libfaac"
1252
libfaad_decoder_deps="libfaad"
1253
libfaadbin_decoder_extralibs='$ldl'
1254
libgsm_decoder_deps="libgsm"
1255
libgsm_encoder_deps="libgsm"
1256
libgsm_ms_decoder_deps="libgsm"
1257
libgsm_ms_encoder_deps="libgsm"
1258
libmp3lame_encoder_deps="libmp3lame"
1259
libopencore_amrnb_decoder_deps="libopencore_amrnb"
1260
libopencore_amrnb_encoder_deps="libopencore_amrnb"
1261
libopencore_amrwb_decoder_deps="libopencore_amrwb"
1262
libopenjpeg_decoder_deps="libopenjpeg"
1263
libschroedinger_decoder_deps="libschroedinger"
1264
libschroedinger_encoder_deps="libschroedinger"
1265
libspeex_decoder_deps="libspeex"
1266
libtheora_encoder_deps="libtheora"
1267
libvorbis_encoder_deps="libvorbis"
1268
libx264_encoder_deps="libx264"
1269
libxvid_encoder_deps="libxvid"
1270

    
1271
# demuxers / muxers
1272
ac3_demuxer_deps="ac3_parser"
1273
asf_stream_muxer_select="asf_muxer"
1274
avisynth_demuxer_deps="avisynth"
1275
dirac_demuxer_deps="dirac_parser"
1276
eac3_demuxer_select="ac3_parser"
1277
ipod_muxer_select="mov_muxer"
1278
libnut_demuxer_deps="libnut"
1279
libnut_muxer_deps="libnut"
1280
matroska_audio_muxer_select="matroska_muxer"
1281
matroska_demuxer_suggest="zlib bzlib"
1282
mov_demuxer_suggest="zlib"
1283
mp3_demuxer_deps="mpegaudio_parser"
1284
mp4_muxer_select="mov_muxer"
1285
mpegtsraw_demuxer_select="mpegts_demuxer"
1286
mxf_d10_muxer_select="mxf_muxer"
1287
ogg_demuxer_select="golomb"
1288
psp_muxer_select="mov_muxer"
1289
rtsp_demuxer_deps="sdp_demuxer"
1290
sdp_demuxer_deps="rtp_protocol mpegts_demuxer"
1291
spdif_muxer_select="aac_parser"
1292
tg2_muxer_select="mov_muxer"
1293
tgp_muxer_select="mov_muxer"
1294
w64_demuxer_deps="wav_demuxer"
1295

    
1296
# indevs / outdevs
1297
alsa_indev_deps="alsa_asoundlib_h snd_pcm_htimestamp"
1298
alsa_indev_extralibs="-lasound"
1299
alsa_outdev_deps="alsa_asoundlib_h"
1300
alsa_outdev_extralibs="-lasound"
1301
audio_beos_indev_deps="audio_beos"
1302
audio_beos_indev_extralibs="-lmedia -lbe"
1303
audio_beos_outdev_deps="audio_beos"
1304
audio_beos_outdev_extralibs="-lmedia -lbe"
1305
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
1306
dv1394_indev_deps="dv1394 dv_demuxer"
1307
jack_indev_deps="jack_jack_h"
1308
jack_indev_extralibs="-ljack"
1309
libdc1394_indev_deps="libdc1394"
1310
oss_indev_deps_any="soundcard_h sys_soundcard_h"
1311
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
1312
v4l_indev_deps="linux_videodev_h"
1313
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
1314
vfwcap_indev_deps="capCreateCaptureWindow"
1315
vfwcap_indev_extralibs="-lvfw32"
1316
x11_grab_device_indev_deps="x11grab XShmCreateImage"
1317
x11_grab_device_indev_extralibs="-lX11 -lXext -lXfixes"
1318

    
1319
# protocols
1320
gopher_protocol_deps="network"
1321
http_protocol_deps="network"
1322
rtmp_protocol_deps="tcp_protocol"
1323
rtp_protocol_deps="udp_protocol"
1324
tcp_protocol_deps="network"
1325
udp_protocol_deps="network"
1326

    
1327
# filters
1328
movie_filter_deps="avfilter_lavf"
1329

    
1330
# programs
1331
ffplay_deps="sdl"
1332
ffserver_deps="ffm_muxer rtp_protocol rtsp_demuxer"
1333
ffserver_extralibs='$ldl'
1334

    
1335
doc_deps="texi2html"
1336

    
1337
# default parameters
1338

    
1339
logfile="config.err"
1340

    
1341
# installation paths
1342
prefix_default="/usr/local"
1343
bindir_default='${prefix}/bin'
1344
datadir_default='${prefix}/share/ffmpeg'
1345
incdir_default='${prefix}/include'
1346
libdir_default='${prefix}/lib'
1347
mandir_default='${prefix}/share/man'
1348
shlibdir_default="$libdir_default"
1349

    
1350
# toolchain
1351
ar="ar"
1352
cc_default="gcc"
1353
cc_version=\"unknown\"
1354
host_cc_default="gcc"
1355
ln_s="ln -sf"
1356
nm_default="nm"
1357
objformat="elf"
1358
ranlib="ranlib"
1359
strip="strip"
1360
yasmexe="yasm"
1361

    
1362
# machine
1363
arch=$(uname -m)
1364
cpu="generic"
1365

    
1366
# OS
1367
target_os=$(tolower $(uname -s))
1368
host_os=$target_os
1369

    
1370
# configurable options
1371
enable debug
1372
enable doc
1373
enable fastdiv
1374
enable ffmpeg
1375
enable ffplay
1376
enable ffserver
1377
enable ipv6
1378
enable mpegaudio_hp
1379
enable network
1380
enable optimizations
1381
enable protocols
1382
enable static
1383
enable stripping
1384
enable swscale_alpha
1385

    
1386
# build settings
1387
SHFLAGS='-shared -Wl,-soname,$$(@F)'
1388
FFSERVERLDFLAGS=-Wl,-E
1389
LIBPREF="lib"
1390
LIBSUF=".a"
1391
FULLNAME='$(NAME)$(BUILDSUF)'
1392
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
1393
SLIBPREF="lib"
1394
SLIBSUF=".so"
1395
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
1396
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
1397
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
1398
LIB_INSTALL_EXTRA_CMD='$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
1399

    
1400
CC_O='-o $@'
1401

    
1402
host_cflags='-D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112 -O3 -g -Wall'
1403
host_libs='-lm'
1404

    
1405
target_path='.'
1406

    
1407
# gcc stupidly only outputs the basename of targets with -MM, but we need the
1408
# full relative path for objects in subdirectories for non-recursive Make.
1409
DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(*F)\\.o,$(@D)/$(*F).o," > $(@:.o=.d)'
1410
DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -MM'
1411

    
1412
# find source path
1413
source_path="$(dirname "$0")"
1414
enable source_path_used
1415
if test -f configure; then
1416
    source_path="$(pwd)"
1417
    disable source_path_used
1418
else
1419
    source_path="$(cd "$source_path"; pwd)"
1420
    echo "$source_path" | grep -q '[[:blank:]]' &&
1421
        die "Out of tree builds are impossible with whitespace in source path."
1422
    test -e "$source_path/config.h" &&
1423
        die "Out of tree builds are impossible with config.h in source dir."
1424
fi
1425

    
1426
for v in "$@"; do
1427
    r=${v#*=}
1428
    l=${v%"$r"}
1429
    r=$(sh_quote "$r")
1430
    FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
1431
done
1432

    
1433
find_things(){
1434
    thing=$1
1435
    pattern=$2
1436
    file=$source_path/$3
1437
    sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
1438
}
1439

    
1440
ENCODER_LIST=$(find_things  encoder  ENC      libavcodec/allcodecs.c)
1441
DECODER_LIST=$(find_things  decoder  DEC      libavcodec/allcodecs.c)
1442
HWACCEL_LIST=$(find_things  hwaccel  HWACCEL  libavcodec/allcodecs.c)
1443
PARSER_LIST=$(find_things   parser   PARSER   libavcodec/allcodecs.c)
1444
BSF_LIST=$(find_things      bsf      BSF      libavcodec/allcodecs.c)
1445
MUXER_LIST=$(find_things    muxer    _MUX     libavformat/allformats.c)
1446
DEMUXER_LIST=$(find_things  demuxer  DEMUX    libavformat/allformats.c)
1447
OUTDEV_LIST=$(find_things   outdev   OUTDEV   libavdevice/alldevices.c)
1448
INDEV_LIST=$(find_things    indev    _IN      libavdevice/alldevices.c)
1449
PROTOCOL_LIST=$(find_things protocol PROTOCOL libavformat/allformats.c)
1450
FILTER_LIST=$(find_things   filter   FILTER   libavfilter/allfilters.c)
1451

    
1452
enable $ARCH_EXT_LIST \
1453
       $DECODER_LIST \
1454
       $ENCODER_LIST \
1455
       $HWACCEL_LIST \
1456
       $PARSER_LIST \
1457
       $BSF_LIST \
1458
       $DEMUXER_LIST \
1459
       $MUXER_LIST \
1460
       $FILTER_LIST \
1461
       $PROTOCOL_LIST \
1462
       $INDEV_LIST \
1463
       $OUTDEV_LIST \
1464

    
1465
die_unknown(){
1466
    echo "Unknown option \"$1\"."
1467
    echo "See $0 --help for available options."
1468
    exit 1
1469
}
1470

    
1471
show_list() {
1472
    suffix=_$1
1473
    shift
1474
    echo $* | sed s/$suffix//g | tr ' ' '\n' | sort
1475
    exit 0
1476
}
1477

    
1478
for opt do
1479
    optval="${opt#*=}"
1480
    case "$opt" in
1481
    --extra-ldflags=*) add_ldflags $optval
1482
    ;;
1483
    --extra-libs=*) add_extralibs $optval
1484
    ;;
1485
    --disable-devices) disable $INDEV_LIST $OUTDEV_LIST
1486
    ;;
1487
    --enable-debug=*) debuglevel="$optval"
1488
    ;;
1489
    --enable-*=*|--disable-*=*)
1490
    eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
1491
    is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
1492
    eval list=\$$(toupper $thing)_LIST
1493
    name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
1494
    $action $(filter "$name" $list)
1495
    ;;
1496
    --enable-?*|--disable-?*)
1497
    eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
1498
    if is_in $option $COMPONENT_LIST; then
1499
        test $action = disable && action=unset
1500
        eval $action \$$(toupper ${option%s})_LIST
1501
    elif is_in $option $CMDLINE_SELECT; then
1502
        $action $option
1503
    else
1504
        die_unknown $opt
1505
    fi
1506
    ;;
1507
    --list-*)
1508
        NAME="${opt#--list-}"
1509
        is_in $NAME $COMPONENT_LIST || die_unknown $opt
1510
        NAME=${NAME%s}
1511
        eval show_list $NAME \$$(toupper $NAME)_LIST
1512
    ;;
1513
    --help|-h) show_help
1514
    ;;
1515
    *)
1516
    optname="${opt%%=*}"
1517
    optname="${optname#--}"
1518
    optname=$(echo "$optname" | sed 's/-/_/g')
1519
    if is_in $optname $CMDLINE_SET; then
1520
        eval $optname='$optval'
1521
    elif is_in $optname $CMDLINE_APPEND; then
1522
        append $optname "$optval"
1523
    else
1524
         die_unknown $opt
1525
    fi
1526
    ;;
1527
    esac
1528
done
1529

    
1530
disabled logging && logfile=/dev/null
1531

    
1532
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
1533
set >> $logfile
1534

    
1535
test -n "$cross_prefix" && enable cross_compile
1536

    
1537
ar="${cross_prefix}${ar}"
1538
cc_default="${cross_prefix}${cc_default}"
1539
nm_default="${cross_prefix}${nm_default}"
1540
ranlib="${cross_prefix}${ranlib}"
1541
strip="${cross_prefix}${strip}"
1542

    
1543
sysinclude_default="${sysroot}/usr/include"
1544

    
1545
set_default cc nm sysinclude
1546
enabled cross_compile || host_cc_default=$cc
1547
set_default host_cc
1548

    
1549
exesuf() {
1550
    case $1 in
1551
        mingw32*|cygwin*|*-dos|freedos|opendos|os/2*) echo .exe ;;
1552
    esac
1553
}
1554

    
1555
EXESUF=$(exesuf $target_os)
1556
HOSTEXESUF=$(exesuf $host_os)
1557

    
1558
# set temporary file name
1559
: ${TMPDIR:=$TEMPDIR}
1560
: ${TMPDIR:=$TMP}
1561
: ${TMPDIR:=/tmp}
1562

    
1563
if ! check_cmd type mktemp; then
1564
    # simple replacement for missing mktemp
1565
    # NOT SAFE FOR GENERAL USE
1566
    mktemp(){
1567
        echo "${2%XXX*}.${HOSTNAME}.${UID}.$$"
1568
    }
1569
fi
1570

    
1571
tmpfile(){
1572
    tmp=$(mktemp -u "${TMPDIR}/ffconf.XXXXXXXX")$2 &&
1573
        (set -C; exec > $tmp) 2>/dev/null ||
1574
        die "Unable to create temporary file in $TMPDIR."
1575
    append TMPFILES $tmp
1576
    eval $1=$tmp
1577
}
1578

    
1579
trap 'rm -f -- $TMPFILES' EXIT
1580
trap exit HUP INT TERM
1581

    
1582
tmpfile TMPC  .c
1583
tmpfile TMPE  $EXESUF
1584
tmpfile TMPH  .h
1585
tmpfile TMPO  .o
1586
tmpfile TMPS  .S
1587
tmpfile TMPV  .ver
1588
tmpfile TMPSH .sh
1589

    
1590
unset -f mktemp
1591

    
1592
# make sure we can execute files in $TMPDIR
1593
cat > $TMPSH 2>> $logfile <<EOF
1594
#! /bin/sh
1595
EOF
1596
chmod +x $TMPSH >> $logfile 2>&1
1597
if ! $TMPSH >> $logfile 2>&1; then
1598
    cat <<EOF
1599
Unable to create and execute files in $TMPDIR.  Set the TMPDIR environment
1600
variable to another directory and make sure that it is not mounted noexec.
1601
EOF
1602
    die "Sanity test failed."
1603
fi
1604

    
1605
filter_cflags=echo
1606
filter_cppflags=echo
1607
filter_asflags=echo
1608

    
1609
if   $cc -v 2>&1 | grep -qi ^gcc; then
1610
    cc_type=gcc
1611
    cc_version=__VERSION__
1612
    if ! $cc -dumpversion | grep -q '^2\.'; then
1613
        CC_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1614
        AS_DEPFLAGS='-MMD -MF $(@:.o=.d) -MT $@'
1615
    fi
1616
elif $cc --version 2>/dev/null | grep -q Intel; then
1617
    cc_type=icc
1618
    cc_version="AV_STRINGIFY(__INTEL_COMPILER)"
1619
    CC_DEPFLAGS='-MMD'
1620
    AS_DEPFLAGS='-MMD'
1621
elif $cc -v 2>&1 | grep -q xlc; then
1622
    cc_type=xlc
1623
    cc_version="AV_STRINGIFY(__IBMC__)"
1624
elif $cc -V 2>/dev/null | grep -q Compaq; then
1625
    cc_type=ccc
1626
    cc_version="AV_STRINGIFY(__DECC_VER)"
1627
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -M'
1628
    debuglevel=3
1629
    add_ldflags -Wl,-z,now # calls to libots crash without this
1630
elif $cc --vsn 2>/dev/null | grep -q "ARM C/C++ Compiler"; then
1631
    test -d "$sysroot" || die "No valid sysroot specified."
1632
    cc_type=armcc
1633
    cc_version="AV_STRINGIFY(__ARMCC_VERSION)"
1634
    armcc_conf="$PWD/armcc.conf"
1635
    $cc --arm_linux_configure                 \
1636
        --arm_linux_config_file="$armcc_conf" \
1637
        --configure_sysroot="$sysroot"        \
1638
        --configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
1639
        die "Error creating armcc configuration file."
1640
    cc="$cc --arm_linux_config_file=$armcc_conf --translate_gcc"
1641
    as_default="${cross_prefix}gcc"
1642
    CC_DEPFLAGS='-MMD'
1643
    AS_DEPFLAGS='-MMD'
1644
elif $cc -version 2>/dev/null | grep -q TMS470; then
1645
    cc_type=tms470
1646
    cc_version="AV_STRINGIFY(__TI_COMPILER_VERSION__)"
1647
    cc="$cc --gcc --abi=eabi -eo=.o -mc -me"
1648
    CC_O='-fr=$(@D)'
1649
    as_default="${cross_prefix}gcc"
1650
    ld_default="${cross_prefix}gcc"
1651
    TMPO=$(basename $TMPC .c).o
1652
    append TMPFILES $TMPO
1653
    add_cflags -D__gnuc_va_list=va_list -D__USER_LABEL_PREFIX__=
1654
    CC_DEPFLAGS='-ppa -ppd=$(@:.o=.d)'
1655
    AS_DEPFLAGS='-MMD'
1656
    filter_cflags=tms470_flags
1657
    tms470_flags(){
1658
        for flag; do
1659
            case $flag in
1660
                -march=*|-mcpu=*)
1661
                    case "${flag#*=}" in
1662
                        armv7-a|cortex-a*)      echo -mv=7a8 ;;
1663
                        armv7-r|cortex-r*)      echo -mv=7r4 ;;
1664
                        armv7-m|cortex-m*)      echo -mv=7m3 ;;
1665
                        armv6*|arm11*)          echo -mv=6   ;;
1666
                        armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
1667
                                                echo -mv=5e  ;;
1668
                        armv4*|arm7*|arm9[24]*) echo -mv=4   ;;
1669
                    esac
1670
                    ;;
1671
                -mfpu=neon)     echo --float_support=vfpv3 --neon ;;
1672
                -mfpu=vfp)      echo --float_support=vfpv2        ;;
1673
                -msoft-float)   echo --float_support=vfplib       ;;
1674
                -Os)            echo -O3 -mf=2                    ;;
1675
                -O[0-3])        echo $flag -mf=5                  ;;
1676
                -g)             echo -g -mn                       ;;
1677
            esac
1678
        done
1679
    }
1680
elif $cc -v 2>&1 | grep -q clang; then
1681
    cc_type=clang
1682
    cc_version=__VERSION__
1683
    CC_DEPFLAGS='-MMD'
1684
    AS_DEPFLAGS='-MMD'
1685
elif $cc -V 2>&1 | grep -q Sun; then
1686
    cc_type=suncc
1687
    cc_version="AV_STRINGIFY(__SUNPRO_C)"
1688
    DEPEND_CMD='$(DEPCC) $(DEPFLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
1689
    DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -xM1'
1690
    filter_cflags=suncc_flags
1691
    suncc_flags(){
1692
        for flag; do
1693
            case $flag in
1694
                -march=*|-mcpu=*)
1695
                    case "${flag#*=}" in
1696
                        native)                   echo -xtarget=native       ;;
1697
                        v9)                       echo -xarch=sparc          ;;
1698
                        ultrasparc)               echo -xarch=sparcvis       ;;
1699
                        ultrasparc3|niagara*)     echo -xarch=sparcvis2      ;;
1700
                        i586|pentium)             echo -xchip=pentium        ;;
1701
                        i686|pentiumpro|pentium2) echo -xtarget=pentium_pro  ;;
1702
                        pentium3*|c3-2)           echo -xtarget=pentium3     ;;
1703
                        pentium-m)          echo -xarch=sse2 -xchip=pentium3 ;;
1704
                        pentium4*)          echo -xtarget=pentium4           ;;
1705
                        prescott|nocona)    echo -xarch=sse3 -xchip=pentium4 ;;
1706
                        *-sse3)             echo -xarch=sse3                 ;;
1707
                        core2)              echo -xarch=ssse3 -xchip=core2   ;;
1708
                        amdfam10|barcelona)       echo -xarch=sse4_1         ;;
1709
                        athlon-4|athlon-[mx]p)    echo -xarch=ssea           ;;
1710
                        k8|opteron|athlon64|athlon-fx)
1711
                                                  echo -xarch=sse2a          ;;
1712
                        athlon*)                  echo -xarch=pentium_proa   ;;
1713
                    esac
1714
                    ;;
1715
                -std=c99)             echo -xc99              ;;
1716
                -fomit-frame-pointer) echo -xregs=frameptr    ;;
1717
                -fPIC)                echo -KPIC -xcode=pic32 ;;
1718
                -Os)                  echo -O5 -xspace        ;;
1719
                -W*,*)                echo $flag              ;;
1720
                -f*-*|-W*)                                    ;;
1721
                *)                    echo $flag              ;;
1722
            esac
1723
        done
1724
    }
1725
fi
1726

    
1727
test -n "$cc_type" && enable $cc_type || echolog "Unknown C compiler $cc"
1728

    
1729
: ${as_default:=$cc}
1730
: ${dep_cc_default:=$cc}
1731
: ${ld_default:=$cc}
1732
set_default as dep_cc ld
1733

    
1734
test -n "$CC_DEPFLAGS" || CCDEP=$DEPEND_CMD
1735
test -n "$AS_DEPFLAGS" || ASDEP=$DEPEND_CMD
1736

    
1737
add_cflags $extra_cflags
1738
add_asflags $extra_cflags
1739

    
1740
if test -n "$sysroot"; then
1741
    case "$cc_type" in
1742
        gcc)
1743
            add_cppflags --sysroot="$sysroot"
1744
            add_ldflags --sysroot="$sysroot"
1745
        ;;
1746
        tms470)
1747
            add_cppflags -I"$sysinclude"
1748
            add_ldflags  --sysroot="$sysroot"
1749
        ;;
1750
        clang)
1751
            add_cppflags -isysroot="$sysroot"
1752
            add_ldflags -isysroot="$sysroot"
1753
        ;;
1754
    esac
1755
fi
1756

    
1757
if test "$cpu" = host; then
1758
    enabled cross_compile && die "--cpu=host makes no sense when cross-compiling."
1759

    
1760
    case "$cc_type" in
1761
        gcc)
1762
            check_native(){
1763
                $cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
1764
                awk "/$1=/{ match(\$0, /$1=(\\w+)/, a);print a[1];exit }" $TMPE
1765
            }
1766
            cpu=$(check_native -march || check_native -mcpu)
1767
        ;;
1768
    esac
1769

    
1770
    test "${cpu:-host}" = host && die "--cpu=host not supported with compiler $cc"
1771
fi
1772

    
1773
# Deal with common $arch aliases
1774
case "$arch" in
1775
    arm*)
1776
        arch="arm"
1777
    ;;
1778
    mips|mipsel|IP*)
1779
        arch="mips"
1780
    ;;
1781
    mips64)
1782
        arch="mips"
1783
        subarch="mips64"
1784
    ;;
1785
    parisc|hppa)
1786
        arch="parisc"
1787
    ;;
1788
    parisc64|hppa64)
1789
        arch="parisc"
1790
        subarch="parisc64"
1791
    ;;
1792
    "Power Macintosh"|ppc|powerpc)
1793
        arch="ppc"
1794
    ;;
1795
    ppc64)
1796
        arch="ppc"
1797
        subarch="ppc64"
1798
    ;;
1799
    s390|s390x)
1800
        arch="s390"
1801
    ;;
1802
    sh4|sh)
1803
        arch="sh4"
1804
    ;;
1805
    sun4u|sparc64)
1806
        arch="sparc"
1807
        subarch="sparc64"
1808
    ;;
1809
    i[3-6]86|i86pc|BePC|x86_64|amd64)
1810
        arch="x86"
1811
    ;;
1812
esac
1813

    
1814
is_in $arch $ARCH_LIST || echo "WARNING: unknown arch $arch"
1815

    
1816
# Add processor-specific flags
1817
case $cpu in
1818
    601|ppc601|PowerPC601)
1819
        cpuflags="-mcpu=601"
1820
    ;;
1821
    603*|ppc603*|PowerPC603*)
1822
        cpuflags="-mcpu=603"
1823
    ;;
1824
    604*|ppc604*|PowerPC604*)
1825
        cpuflags="-mcpu=604"
1826
    ;;
1827
    G3|g3|75*|ppc75*|PowerPC75*)
1828
        cpuflags="-mcpu=750 -mpowerpc-gfxopt"
1829
    ;;
1830
    G4|g4|745*|ppc745*|PowerPC745*)
1831
        cpuflags="-mcpu=7450 -mpowerpc-gfxopt"
1832
    ;;
1833
    74*|ppc74*|PowerPC74*)
1834
        cpuflags="-mcpu=7400 -mpowerpc-gfxopt"
1835
    ;;
1836
    G5|g5|970|ppc970|PowerPC970|power4*|Power4*)
1837
        cpuflags="-mcpu=970 -mpowerpc-gfxopt -mpowerpc64"
1838
    ;;
1839
    Cell|CELL|cell)
1840
        cpuflags="-mcpu=cell"
1841
        enable ldbrx
1842
    ;;
1843
    i[345]86|pentium)
1844
        cpuflags="-march=$cpu"
1845
        disable mmx
1846
    ;;
1847
    # targets that do NOT support conditional mov (cmov)
1848
    pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
1849
        cpuflags="-march=$cpu"
1850
        disable cmov
1851
    ;;
1852
    # targets that do support conditional mov (cmov)
1853
    i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64|k8|opteron|athlon-fx|core2|amdfam10)
1854
        cpuflags="-march=$cpu"
1855
        enable cmov
1856
        enable fast_cmov
1857
    ;;
1858
    # targets that do support conditional mov but on which it's slow
1859
    pentium4|pentium4m|prescott|nocona)
1860
        cpuflags="-march=$cpu"
1861
        enable cmov
1862
        disable fast_cmov
1863
    ;;
1864
    sparc64)
1865
        cpuflags="-mcpu=v9"
1866
    ;;
1867
    arm11*|cortex*)
1868
        cpuflags="-mcpu=$cpu"
1869
    ;;
1870
    armv[67]*)
1871
        cpuflags="-march=$cpu"
1872
    ;;
1873
    armv*)
1874
        cpuflags="-march=$cpu"
1875
    ;;
1876
    arm*)
1877
        cpuflags="-mcpu=$cpu"
1878
    ;;
1879
    ev4|ev45|ev5|ev56|pca56|ev6|ev67)
1880
        enabled ccc && cpuflags="-arch $cpu" || cpuflags="-mcpu=$cpu"
1881
    ;;
1882
    bf*)
1883
        cpuflags="-mcpu=$cpu"
1884
    ;;
1885
    mips*|[45]k*|[237]4k*|m4k|r*000|loongson2[ef])
1886
        cpuflags="-march=$cpu"
1887
    ;;
1888
    ap7[02]0[0-2])
1889
        subarch="avr32_ap"
1890
        cpuflags="-mpart=$cpu"
1891
    ;;
1892
    ap)
1893
        subarch="avr32_ap"
1894
        cpuflags="-march=$cpu"
1895
    ;;
1896
    uc3[ab]*)
1897
        subarch="avr32_uc"
1898
        cpuflags="-mcpu=$cpu"
1899
    ;;
1900
    uc)
1901
        subarch="avr32_uc"
1902
        cpuflags="-march=$cpu"
1903
    ;;
1904
    generic)
1905
    ;;
1906
    *)
1907
        echo "WARNING: Unknown CPU \"$cpu\", ignored."
1908
    ;;
1909
esac
1910

    
1911
add_cflags $cpuflags
1912
add_asflags $cpuflags
1913

    
1914
# compiler sanity check
1915
check_exec <<EOF
1916
int main(void){ return 0; }
1917
EOF
1918
if test "$?" != 0; then
1919
    echo "$cc is unable to create an executable file."
1920
    if test -z "$cross_prefix" && ! enabled cross_compile ; then
1921
        echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
1922
        echo "Only do this if you know what cross compiling means."
1923
    fi
1924
    die "C compiler test failed."
1925
fi
1926

    
1927
add_cppflags -D_ISOC99_SOURCE -D_POSIX_C_SOURCE=200112
1928
check_cflags -std=c99
1929
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
1930
#include <stdlib.h>
1931
EOF
1932
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
1933
#include <stdlib.h>
1934
EOF
1935

    
1936
check_host_cflags -std=c99
1937

    
1938
case "$arch" in
1939
    alpha|ia64|mips|parisc|sparc)
1940
        spic=$shared
1941
    ;;
1942
    x86)
1943
        subarch="x86_32"
1944
        check_cc <<EOF && subarch="x86_64"
1945
        int test[(int)sizeof(char*) - 7];
1946
EOF
1947
        if test "$subarch" = "x86_64"; then
1948
            spic=$shared
1949
        fi
1950
    ;;
1951
esac
1952

    
1953
enable $arch $subarch
1954
enabled spic && enable pic
1955
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable pic
1956

    
1957
# OS specific
1958
case $target_os in
1959
    beos|haiku|zeta)
1960
        prefix_default="$HOME/config"
1961
        # 3 gcc releases known for BeOS, each with ugly bugs
1962
        gcc_version="$($cc -v 2>&1 | grep version | cut -d ' ' -f3-)"
1963
        case "$gcc_version" in
1964
          2.9-beos-991026*|2.9-beos-000224*) echo "R5/GG gcc"
1965
            disable mmx
1966
            ;;
1967
          *20010315*) echo "BeBits gcc"
1968
            add_cflags -fno-expensive-optimizations
1969
            ;;
1970
        esac
1971
        SHFLAGS=-nostart
1972
        # enable BeOS things
1973
        enable audio_beos
1974
        # no need for libm, but the inet stuff
1975
        # Check for BONE
1976
        # XXX: actually should check for NOT net_server
1977
        if echo $BEINCLUDES | grep -q 'headers/be/bone'; then
1978
            network_extralibs="-lbind -lsocket"
1979
        else
1980
            enable beos_netserver
1981
            network_extralibs="-lnet"
1982
        fi ;;
1983
    sunos)
1984
        FFSERVERLDFLAGS=""
1985
        SHFLAGS='-shared -Wl,-h,$$(@F)'
1986
        enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
1987
        network_extralibs="-lsocket -lnsl"
1988
        add_cppflags -D__EXTENSIONS__
1989
        ;;
1990
    netbsd)
1991
        oss_indev_extralibs="-lossaudio"
1992
        oss_outdev_extralibs="-lossaudio"
1993
        ;;
1994
    openbsd)
1995
        enable malloc_aligned
1996
        # On OpenBSD 4.5. the compiler does not use PIC unless
1997
        # explicitly using -fPIC. FFmpeg builds fine without PIC,
1998
        # however the generated executable will not do anything
1999
        # (simply quits with exit-code 1, no crash, no output).
2000
        # Thus explicitly enable PIC here.
2001
        enable pic
2002
        SHFLAGS='-shared'
2003
        oss_indev_extralibs="-lossaudio"
2004
        oss_outdev_extralibs="-lossaudio"
2005
        ;;
2006
    freebsd|dragonfly)
2007
        enable malloc_aligned
2008
        ;;
2009
    bsd/os)
2010
        osextralibs="-lpoll -lgnugetopt"
2011
        strip="strip -d"
2012
        ;;
2013
    darwin)
2014
        enable malloc_aligned
2015
        SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(SHLIBDIR)/$(SLIBNAME),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR) -Wl,-read_only_relocs,suppress'
2016
        strip="strip -x"
2017
        FFLDFLAGS="-Wl,-dynamic,-search_paths_first"
2018
        SLIBSUF=".dylib"
2019
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
2020
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
2021
        FFSERVERLDFLAGS=-Wl,-bind_at_load
2022
        objformat="macho"
2023
        enabled x86_64 && objformat="macho64"
2024
        enabled_any pic shared ||
2025
            { check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
2026
        ;;
2027
    mingw32*)
2028
        # Only WinXP or greater are supported
2029
        add_cflags -D_WIN32_WINNT=0x0501
2030
        if test $target_os = "mingw32ce"; then
2031
            disable network
2032
        else
2033
            target_os=mingw32
2034
        fi
2035
        LIBTARGET=i386
2036
        if enabled x86_64; then
2037
            enable malloc_aligned
2038
            LIBTARGET=x64
2039
        elif enabled arm; then
2040
            LIBTARGET=arm
2041
        fi
2042
        shlibdir_default="$bindir_default"
2043
        disable ffserver
2044
        SLIBPREF=""
2045
        SLIBSUF=".dll"
2046
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2047
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2048
        SLIB_EXTRA_CMD='-lib.exe /machine:$(LIBTARGET) /def:$$(@:$(SLIBSUF)=.def) /out:$(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)'
2049
        SLIB_INSTALL_EXTRA_CMD='-install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"; \
2050
            install -m 644 $(SUBDIR)$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib) "$(SHLIBDIR)/$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.lib)"; \
2051
            install -d "$(LIBDIR)"; \
2052
            install -m 644 $(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) "$(LIBDIR)/lib$(SLIBNAME:$(SLIBSUF)=.dll.a)"'
2053
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(SHLIBDIR)/$(SLIBNAME:$(SLIBSUF)=.lib)"'
2054
        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'
2055
        objformat="win32"
2056
        enable dos_paths
2057
        check_cflags -fno-common
2058
        if ! enabled x86_64; then
2059
            check_cpp_condition _mingw.h "(__MINGW32_MAJOR_VERSION > 3) || (__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
2060
                die "ERROR: MinGW runtime version must be >= 3.15."
2061
            enabled_any avisynth vfwcap_indev &&
2062
                { check_cpp_condition w32api.h "(__W32API_MAJOR_VERSION > 3) || (__W32API_MAJOR_VERSION == 3 && __W32API_MINOR_VERSION >= 13)" ||
2063
                  die "ERROR: avisynth and vfwcap_indev require w32api version 3.13 or later."; }
2064
            fi
2065
        ;;
2066
    cygwin*)
2067
        target_os=cygwin
2068
        shlibdir_default="$bindir_default"
2069
        SLIBPREF="cyg"
2070
        SLIBSUF=".dll"
2071
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
2072
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
2073
        SHFLAGS='-shared -Wl,--enable-auto-image-base'
2074
        objformat="win32"
2075
        enable dos_paths
2076
        check_cflags -fno-common
2077
        ;;
2078
    *-dos|freedos|opendos)
2079
        disable ffplay ffserver
2080
        disable $INDEV_LIST $OUTDEV_LIST
2081
        network_extralibs="-lsocket"
2082
        objformat="coff"
2083
        enable dos_paths
2084
        ;;
2085
    linux)
2086
        enable dv1394
2087
        ;;
2088
    irix*)
2089
        target_os=irix
2090
        ranlib="echo ignoring ranlib"
2091
        ;;
2092
    os/2*)
2093
        strip="lxlite"
2094
        ln_s="cp -f"
2095
        FFLDFLAGS="-Zomf -Zbin-files -Zargs-wild -Zmap"
2096
        SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
2097
        FFSERVERLDFLAGS=""
2098
        LIBSUF="_s.a"
2099
        SLIBPREF=""
2100
        SLIBSUF=".dll"
2101
        SLIBNAME_WITH_VERSION='$(SLIBPREF)$(NAME)-$(LIBVERSION)$(SLIBSUF)'
2102
        SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(NAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
2103
        SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(NAME).def; \
2104
          echo PROTMODE >> $(SUBDIR)$(NAME).def; \
2105
          echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(NAME).def; \
2106
          echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(NAME).def; \
2107
          echo EXPORTS >> $(SUBDIR)$(NAME).def; \
2108
          emxexp -o $(OBJS) >> $(SUBDIR)$(NAME).def'
2109
        SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(NAME).def; \
2110
          emximp -o $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib $(SUBDIR)$(NAME).def;'
2111
        SLIB_INSTALL_EXTRA_CMD='install -m 644 $(SUBDIR)$(LIBPREF)$(NAME)_dll.a $(SUBDIR)$(LIBPREF)$(NAME)_dll.lib "$(LIBDIR)"'
2112
        SLIB_UNINSTALL_EXTRA_CMD='rm -f "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.a "$(LIBDIR)"/$(LIBPREF)$(NAME)_dll.lib'
2113
        enable dos_paths
2114
        ;;
2115
    gnu/kfreebsd)
2116
        ;;
2117
    gnu)
2118
        ;;
2119

    
2120
    *)
2121
        die "Unknown OS '$target_os'."
2122
        ;;
2123
esac
2124

    
2125
set_default $PATHS_LIST
2126

    
2127
add_extralibs $osextralibs
2128

    
2129
# Combine FFLDFLAGS and the LDFLAGS environment variable.
2130
LDFLAGS="$FFLDFLAGS $LDFLAGS"
2131

    
2132
# we need to build at least one lib type
2133
if ! enabled_any static shared; then
2134
    cat <<EOF
2135
At least one library type must be built.
2136
Specify --enable-static to build the static libraries or --enable-shared to
2137
build the shared libraries as well. To only build the shared libraries specify
2138
--disable-static in addition to --enable-shared.
2139
EOF
2140
    exit 1;
2141
fi
2142

    
2143
disabled static && LIBNAME=""
2144

    
2145
if enabled_any libfaad libfaadbin ; then
2146
    if check_header faad.h; then
2147
        check_cc <<EOF
2148
#include <faad.h>
2149
#ifndef FAAD2_VERSION
2150
ok faad1
2151
#endif
2152
int main(void) { return 0; }
2153
EOF
2154
        test $? = 0 && enable libfaad2
2155
    else
2156
        die "FAAD test failed."
2157
    fi
2158
fi
2159

    
2160

    
2161
die_license_disabled() {
2162
    enabled $1 || { enabled $2 && die "$2 is $1 and --enable-$1 is not specified."; }
2163
}
2164

    
2165
die_license_disabled gpl libfaad2
2166
die_license_disabled gpl libx264
2167
die_license_disabled gpl libxvid
2168
die_license_disabled gpl postproc
2169
die_license_disabled gpl x11grab
2170

    
2171
die_license_disabled nonfree libfaac
2172

    
2173
die_license_disabled version3 libopencore_amrnb
2174
die_license_disabled version3 libopencore_amrwb
2175

    
2176
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
2177

    
2178
check_deps $ARCH_EXT_LIST
2179

    
2180
disabled optimizations || check_cflags -fomit-frame-pointer
2181

    
2182
enable_pic() {
2183
    enable pic
2184
    add_cppflags -DPIC
2185
    add_cflags   -fPIC
2186
    add_asflags  -fPIC
2187
}
2188

    
2189
enabled pic && enable_pic
2190

    
2191
check_cc <<EOF || die "Symbol mangling check failed."
2192
int ff_extern;
2193
EOF
2194
sym=$($nm -P -g $TMPO | grep ff_extern)
2195
extern_prefix=${sym%%ff_extern*}
2196

    
2197
check_cc <<EOF && enable inline_asm
2198
void foo(void) { __asm__ volatile ("" ::); }
2199
EOF
2200

    
2201
_restrict=
2202
for restrict_keyword in restrict __restrict__ __restrict; do
2203
    check_cc <<EOF && _restrict=$restrict_keyword && break
2204
void foo(char * $restrict_keyword p);
2205
EOF
2206
done
2207

    
2208
check_cc <<EOF && enable attribute_packed
2209
struct { int x; } __attribute__((packed)) x;
2210
EOF
2211

    
2212
check_cc <<EOF || die "endian test failed"
2213
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
2214
EOF
2215
od -A n -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
2216

    
2217
if enabled alpha; then
2218

    
2219
    check_cflags -mieee
2220

    
2221
elif enabled arm; then
2222

    
2223
    check_cflags -marm
2224

    
2225
    check_ld <<EOF && enable vfp_args
2226
__asm__ (".eabi_attribute 28, 1");
2227
int main(void) { return 0; }
2228
EOF
2229

    
2230
    # We have to check if pld is a nop and disable it.
2231
    check_asm pld '"pld [r0]"'
2232

    
2233
    enabled armv5te && check_asm armv5te '"qadd r0, r0, r0"'
2234
    enabled armv6   && check_asm armv6   '"sadd16 r0, r0, r0"'
2235
    enabled armv6t2 && check_asm armv6t2 '"movt r0, #0"'
2236
    enabled armvfp  && check_asm armvfp  '"fadds s0, s0, s0"'
2237
    enabled iwmmxt  && check_asm iwmmxt  '"wunpckelub wr6, wr4"'
2238
    enabled neon    && check_asm neon    '"vadd.i16 q0, q0, q0"'
2239

    
2240
    enabled_all armv6t2 shared !pic && enable_pic
2241

    
2242
elif enabled ia64; then
2243

    
2244
    # HACK: currently fails to build if .bss is > 4MB and shared libs are built
2245
    enabled shared && enable_weak hardcoded_tables
2246

    
2247
elif enabled mips; then
2248

    
2249
    check_asm loongson '"dmult.g $1, $2, $3"'
2250
    enabled mmi     && check_asm mmi     '"lq $2, 0($2)"'
2251

    
2252
elif enabled ppc; then
2253

    
2254
    check_asm dcbzl     '"dcbzl 0, 1"'
2255
    check_asm ppc4xx    '"maclhw r10, r11, r12"'
2256
    check_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
2257

    
2258
    # AltiVec flags: The FSF version of GCC differs from the Apple version
2259
    if enabled altivec; then
2260
        check_cflags -maltivec -mabi=altivec &&
2261
        { check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
2262
        check_cflags -faltivec
2263

    
2264
        # check if our compiler supports Motorola AltiVec C API
2265
        check_cc <<EOF || disable altivec
2266
$inc_altivec_h
2267
int main(void) {
2268
    vector signed int v1, v2, v3;
2269
    v1 = vec_add(v2,v3);
2270
    return 0;
2271
}
2272
EOF
2273

    
2274
        # check if our compiler supports braces for vector declarations
2275
        check_cc <<EOF || die "You need a compiler that supports {} in AltiVec vector declarations."
2276
$inc_altivec_h
2277
int main (void) { (vector int) {1}; return 0; }
2278
EOF
2279
    fi
2280

    
2281
elif enabled sparc; then
2282

    
2283
    enabled vis && check_asm vis '"pdist %f0, %f0, %f0"' -mcpu=ultrasparc &&
2284
        add_cflags -mcpu=ultrasparc -mtune=ultrasparc
2285

    
2286
elif enabled x86; then
2287

    
2288
    # check whether EBP is available on x86
2289
    # As 'i' is stored on the stack, this program will crash
2290
    # if the base pointer is used to access it because the
2291
    # base pointer is cleared in the inline assembly code.
2292
    check_exec_crash <<EOF && enable ebp_available
2293
    volatile int i=0;
2294
    __asm__ volatile (
2295
        "xorl %%ebp, %%ebp"
2296
    ::: "%ebp");
2297
    return i;
2298
EOF
2299

    
2300
    # check whether EBX is available on x86
2301
    check_asm ebx_available '""::"b"(0)' &&
2302
        check_asm ebx_available '"":::"%ebx"'
2303

    
2304
    # check whether more than 10 operands are supported
2305
    check_cc <<EOF && enable ten_operands
2306
int main(void) {
2307
    int x=0;
2308
    __asm__ volatile(
2309
        ""
2310
        :"+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x), "+&rm"(x)
2311
    );
2312
    return 0;
2313
}
2314
EOF
2315

    
2316
    # check whether binutils is new enough to compile SSSE3/MMX2
2317
    enabled ssse3 && check_asm ssse3 '"pabsw %xmm0, %xmm0"'
2318
    enabled mmx2  && check_asm mmx2  '"pmaxub %mm0, %mm1"'
2319

    
2320
    check_asm bswap '"bswap %%eax" ::: "%eax"'
2321

    
2322
    YASMFLAGS="-f $objformat -DARCH_$(toupper $subarch)"
2323
    enabled     x86_64        && append YASMFLAGS "-m amd64"
2324
    enabled     pic           && append YASMFLAGS "-DPIC"
2325
    test -n "$extern_prefix"  && append YASMFLAGS "-DPREFIX"
2326
    case "$objformat" in
2327
        elf) enabled debug && append YASMFLAGS "-g dwarf2" ;;
2328
    esac
2329
    disabled yasm || { check_yasm "pabsw xmm0, xmm0" && enable yasm; }
2330

    
2331
    case "$cpu" in
2332
        athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
2333
            disable fast_clz
2334
        ;;
2335
    esac
2336

    
2337
fi
2338

    
2339
if check_func dlopen; then
2340
    ldl=
2341
elif check_func dlopen -ldl; then
2342
    ldl=-ldl
2343
fi
2344

    
2345
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
2346
check_func nanosleep || { check_func nanosleep -lrt && add_extralibs -lrt; }
2347

    
2348
check_func  fork
2349
check_func  getaddrinfo $network_extralibs
2350
check_func  gethrtime
2351
check_func  getrusage
2352
check_func  inet_aton $network_extralibs
2353
check_func  isatty
2354
check_func  memalign
2355
check_func  mkstemp
2356
check_func  posix_memalign
2357
check_func_headers io.h setmode
2358
check_func_headers lzo/lzo1x.h lzo1x_999_compress
2359
check_func_headers windows.h GetProcessTimes
2360
check_func_headers windows.h VirtualAlloc
2361

    
2362
check_header conio.h
2363
check_header dlfcn.h
2364
check_header malloc.h
2365
check_header poll.h
2366
check_header sys/mman.h
2367
check_header sys/resource.h
2368
check_header sys/select.h
2369
check_header termios.h
2370
check_header vdpau/vdpau.h
2371
check_header vdpau/vdpau_x11.h
2372
check_header X11/extensions/XvMClib.h
2373

    
2374
if ! enabled_any memalign memalign_hack posix_memalign malloc_aligned &&
2375
     enabled_any $need_memalign ; then
2376
    die "Error, no aligned memory allocator but SSE enabled, disable it or use --enable-memalign-hack."
2377
fi
2378

    
2379
disabled  zlib || check_lib   zlib.h      zlibVersion -lz   || disable  zlib
2380
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
2381

    
2382
# check for some common methods of building with pthread support
2383
# do this before the optional library checks as some of them require pthreads
2384
if enabled pthreads; then
2385
    if check_func pthread_create; then
2386
        :
2387
    elif check_func pthread_create -pthread; then
2388
        add_cflags -pthread
2389
        add_extralibs -pthread
2390
    elif check_func pthread_create -pthreads; then
2391
        add_cflags -pthreads
2392
        add_extralibs -pthreads
2393
    elif check_func pthread_create -lpthreadGC2; then
2394
        add_extralibs -lpthreadGC2
2395
    elif ! check_lib pthread.h pthread_create -lpthread; then
2396
        die "ERROR: can't find pthreads library"
2397
    fi
2398
fi
2399

    
2400
for thread in $THREADS_LIST; do
2401
    if enabled $thread; then
2402
        test -n "$thread_type" &&
2403
            die "ERROR: Only one thread type must be selected." ||
2404
            thread_type="$thread"
2405
    fi
2406
done
2407

    
2408
check_lib math.h sin -lm
2409
check_lib va/va.h vaInitialize -lva
2410

    
2411
check_func exp2
2412
check_func exp2f
2413
check_func llrint
2414
check_func log2
2415
check_func log2f
2416
check_func lrint
2417
check_func lrintf
2418
check_func round
2419
check_func roundf
2420
check_func truncf
2421

    
2422
# these are off by default, so fail if requested and not available
2423
enabled avisynth   && require2 vfw32 "windows.h vfw.h" AVIFileInit -lvfw32
2424
enabled libdirac   && add_cflags $(pkg-config --cflags dirac) &&
2425
                      require  libdirac libdirac_decoder/dirac_parser.h dirac_decoder_init $(pkg-config --libs dirac) &&
2426
                      require  libdirac libdirac_encoder/dirac_encoder.h dirac_encoder_init $(pkg-config --libs dirac)
2427
enabled libfaac    && require2 libfaac "stdint.h faac.h" faacEncGetVersion -lfaac
2428
enabled libfaad    && require2 libfaad faad.h faacDecOpen -lfaad
2429
enabled libgsm     && require  libgsm gsm.h gsm_create -lgsm
2430
enabled libmp3lame && require  libmp3lame lame/lame.h lame_init -lmp3lame -lm
2431
enabled libnut     && require  libnut libnut.h nut_demuxer_init -lnut
2432
enabled libopencore_amrnb  && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb -lm
2433
enabled libopencore_amrwb  && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb -lm
2434
enabled libopenjpeg && require libopenjpeg openjpeg.h opj_version -lopenjpeg
2435
enabled libschroedinger && add_cflags $(pkg-config --cflags schroedinger-1.0) &&
2436
                           require libschroedinger schroedinger/schro.h schro_init $(pkg-config --libs schroedinger-1.0)
2437
enabled libspeex   && require  libspeex speex/speex.h speex_decoder_init -lspeex
2438
enabled libtheora  && require  libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
2439
enabled libvorbis  && require  libvorbis vorbis/vorbisenc.h vorbis_info_init -lvorbisenc -lvorbis -logg
2440
enabled libx264    && require  libx264 x264.h x264_encoder_encode -lx264 -lm &&
2441
                      { check_cpp_condition x264.h "X264_BUILD >= 79" ||
2442
                        die "ERROR: libx264 version must be >= 0.79."; }
2443
enabled libxvid    && require  libxvid xvid.h xvid_global -lxvidcore
2444
enabled mlib       && require  mediaLib mlib_types.h mlib_VectorSub_S16_U8_Mod -lmlib
2445

    
2446
# libdc1394 check
2447
if enabled libdc1394; then
2448
    { check_lib dc1394/dc1394.h dc1394_new -ldc1394 -lraw1394 &&
2449
        enable libdc1394_2; } ||
2450
    { check_lib libdc1394/dc1394_control.h dc1394_create_handle -ldc1394_control -lraw1394 &&
2451
        enable libdc1394_1; } ||
2452
    die "ERROR: No version of libdc1394 found "
2453
fi
2454

    
2455
SDL_CONFIG="${cross_prefix}sdl-config"
2456
if "${SDL_CONFIG}" --version > /dev/null 2>&1; then
2457
    sdl_cflags=$("${SDL_CONFIG}" --cflags)
2458
    sdl_libs=$("${SDL_CONFIG}" --libs)
2459
    check_func_headers SDL.h SDL_Init $sdl_cflags $sdl_libs &&
2460
    check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x010201" $sdl_cflags &&
2461
    enable sdl &&
2462
    check_struct SDL.h SDL_VideoInfo current_w $sdl_cflags && enable sdl_video_size
2463
fi
2464

    
2465
texi2html -version > /dev/null 2>&1 && enable texi2html || disable texi2html
2466

    
2467
if enabled network; then
2468
    check_type "sys/types.h sys/socket.h" socklen_t
2469
    check_type netdb.h "struct addrinfo"
2470
    check_type sys/socket.h "struct sockaddr_storage"
2471
    # Prefer arpa/inet.h over winsock2
2472
    if check_header arpa/inet.h ; then
2473
        check_func closesocket
2474
    elif check_header winsock2.h ; then
2475
        check_func_headers winsock2.h closesocket -lws2 && \
2476
            network_extralibs="-lws2" || \
2477
        { check_func_headers winsock2.h closesocket -lws2_32 && \
2478
            network_extralibs="-lws2_32"; }
2479
        check_type ws2tcpip.h socklen_t
2480
        check_type ws2tcpip.h "struct addrinfo"
2481
        check_type ws2tcpip.h "struct sockaddr_storage"
2482
    else
2483
        disable network
2484
    fi
2485
fi
2486

    
2487
enabled_all network ipv6 && check_ld <<EOF || disable ipv6
2488
#include <sys/types.h>
2489
#include <sys/socket.h>
2490
#include <netinet/in.h>
2491
#include <netdb.h>
2492
int main(void) {
2493
    struct sockaddr_storage saddr;
2494
    struct ipv6_mreq mreq6;
2495
    getaddrinfo(0,0,0,0);
2496
    getnameinfo(0,0,0,0,0,0,0);
2497
    IN6_IS_ADDR_MULTICAST((const struct in6_addr *)0);
2498
}
2499
EOF
2500

    
2501
check_header linux/videodev.h
2502
check_header linux/videodev2.h
2503
check_header sys/videoio.h
2504

    
2505
check_func_headers "windows.h vfw.h" capCreateCaptureWindow -lvfw32
2506

    
2507
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
2508
{ check_header dev/bktr/ioctl_meteor.h &&
2509
  check_header dev/bktr/ioctl_bt848.h; } ||
2510
{ check_header machine/ioctl_meteor.h &&
2511
  check_header machine/ioctl_bt848.h; } ||
2512
{ check_header dev/video/meteor/ioctl_meteor.h &&
2513
  check_header dev/video/bktr/ioctl_bt848.h; } ||
2514
check_header dev/ic/bt8xx.h
2515

    
2516
check_header sys/soundcard.h
2517
check_header soundcard.h
2518

    
2519
enabled_any alsa_indev alsa_outdev && check_lib2 alsa/asoundlib.h snd_pcm_htimestamp -lasound
2520

    
2521
enabled jack_indev && check_lib2 jack/jack.h jack_client_open -ljack
2522

    
2523
enabled x11grab                         &&
2524
check_header X11/Xlib.h                 &&
2525
check_header X11/extensions/XShm.h      &&
2526
check_header X11/extensions/Xfixes.h    &&
2527
check_func XOpenDisplay -lX11           &&
2528
check_func XShmCreateImage -lX11 -lXext &&
2529
check_func XFixesGetCursorImage -lX11 -lXext -lXfixes
2530

    
2531
if ! disabled vdpau && enabled vdpau_vdpau_h; then
2532
check_cpp_condition \
2533
    vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
2534
    { echolog "Please upgrade to libvdpau >= 0.2 if you would like vdpau support." &&
2535
      disable vdpau; }
2536
fi
2537

    
2538
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
2539

    
2540
# add some useful compiler flags if supported
2541
check_cflags -Wdeclaration-after-statement
2542
check_cflags -Wall
2543
check_cflags -Wno-switch
2544
check_cflags -Wdisabled-optimization
2545
check_cflags -Wpointer-arith
2546
check_cflags -Wredundant-decls
2547
check_cflags -Wno-pointer-sign
2548
check_cflags -Wcast-qual
2549
check_cflags -Wwrite-strings
2550
check_cflags -Wtype-limits
2551
check_cflags -Wundef
2552
enabled extra_warnings && check_cflags -Winline
2553

    
2554
# add some linker flags
2555
check_ldflags -Wl,--warn-common
2556
check_ldflags -Wl,--as-needed
2557
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'
2558
check_ldflags -Wl,-Bsymbolic
2559

    
2560
echo "X{};" > $TMPV
2561
test_ldflags -Wl,--version-script,$TMPV &&
2562
    append SHFLAGS '-Wl,--version-script,\$(SUBDIR)lib\$(NAME).ver'
2563

    
2564
if enabled small; then
2565
    check_cflags -Os            # not all compilers support -Os
2566
    optimizations="small"
2567
elif enabled optimizations; then
2568
    if enabled xlc; then
2569
        add_cflags  -O5
2570
        add_ldflags -O5
2571
    elif enabled suncc; then
2572
        add_cflags -O5
2573
    elif enabled ccc; then
2574
        add_cflags -fast
2575
    else
2576
        add_cflags -O3
2577
    fi
2578
fi
2579
check_cflags -fno-math-errno
2580
check_cflags -fno-signed-zeros
2581

    
2582
if enabled icc; then
2583
    # Just warnings, no remarks
2584
    check_cflags -w1
2585
    # -wd: Disable following warnings
2586
    # 144, 167, 556: -Wno-pointer-sign
2587
    # 10006: ignoring unknown option -fno-signed-zeros
2588
    # 10156: ignoring option '-W'; no argument required
2589
    check_cflags -wd144,167,556,10006,10156
2590
    # 11030: Warning unknown option --as-needed
2591
    # 10156: ignoring option '-export'; no argument required
2592
    check_ldflags -wd10156,11030
2593
    # Allow to compile with optimizations
2594
    check_ldflags -march=$cpu
2595
    # icc 11.0 and 11.1 work with ebp_available, but don't pass the test
2596
    enable ebp_available
2597
elif enabled ccc; then
2598
    # disable some annoying warnings
2599
    add_cflags -msg_disable cvtu32to64
2600
    add_cflags -msg_disable embedcomment
2601
    add_cflags -msg_disable needconstext
2602
    add_cflags -msg_disable nomainieee
2603
    add_cflags -msg_disable ptrmismatch1
2604
    add_cflags -msg_disable unreachcode
2605
elif enabled gcc; then
2606
    check_cflags -fno-tree-vectorize
2607
elif enabled clang; then
2608
    check_cflags -Qunused-arguments
2609
fi
2610

    
2611
if enabled gprof; then
2612
    add_cflags  -p
2613
    add_ldflags -p
2614
fi
2615

    
2616
# Find out if the .align argument is a power of two or not.
2617
check_asm asmalign_pot '".align 3"'
2618

    
2619
enabled_any $DECODER_LIST      && enable decoders
2620
enabled_any $ENCODER_LIST      && enable encoders
2621
enabled_any $HWACCEL_LIST      && enable hwaccels
2622
enabled_any $BSF_LIST          && enable bsfs
2623
enabled_any $DEMUXER_LIST      && enable demuxers
2624
enabled_any $MUXER_LIST        && enable muxers
2625
enabled_any $FILTER_LIST       && enable filters
2626
enabled_any $INDEV_LIST        && enable indevs
2627
enabled_any $OUTDEV_LIST       && enable outdevs
2628
enabled_any $PROTOCOL_LIST     && enable protocols
2629

    
2630
enabled_any $THREADS_LIST      && enable threads
2631

    
2632
check_deps $CONFIG_LIST       \
2633
           $CONFIG_EXTRA      \
2634
           $HAVE_LIST         \
2635
           $DECODER_LIST      \
2636
           $ENCODER_LIST      \
2637
           $HWACCEL_LIST      \
2638
           $PARSER_LIST       \
2639
           $BSF_LIST          \
2640
           $DEMUXER_LIST      \
2641
           $MUXER_LIST        \
2642
           $FILTER_LIST       \
2643
           $INDEV_LIST        \
2644
           $OUTDEV_LIST       \
2645
           $PROTOCOL_LIST     \
2646

    
2647
echo "install prefix            $prefix"
2648
echo "source path               $source_path"
2649
echo "C compiler                $cc"
2650
echo ".align is power-of-two    $asmalign_pot"
2651
echo "ARCH                      $arch ($cpu)"
2652
if test "$build_suffix" != ""; then
2653
    echo "build suffix              $build_suffix"
2654
fi
2655
if test "$extra_version" != ""; then
2656
    echo "version string suffix     $extra_version"
2657
fi
2658
echo "big-endian                ${bigendian-no}"
2659
echo "runtime cpu detection     ${runtime_cpudetect-no}"
2660
if enabled x86; then
2661
    echo "yasm                      ${yasm-no}"
2662
    echo "MMX enabled               ${mmx-no}"
2663
    echo "MMX2 enabled              ${mmx2-no}"
2664
    echo "3DNow! enabled            ${amd3dnow-no}"
2665
    echo "3DNow! extended enabled   ${amd3dnowext-no}"
2666
    echo "SSE enabled               ${sse-no}"
2667
    echo "SSSE3 enabled             ${ssse3-no}"
2668
    echo "CMOV enabled              ${cmov-no}"
2669
    echo "CMOV is fast              ${fast_cmov-no}"
2670
    echo "EBX available             ${ebx_available-no}"
2671
    echo "EBP available             ${ebp_available-no}"
2672
    echo "10 operands supported     ${ten_operands-no}"
2673
fi
2674
if enabled arm; then
2675
    echo "ARMv5TE enabled           ${armv5te-no}"
2676
    echo "ARMv6 enabled             ${armv6-no}"
2677
    echo "ARMv6T2 enabled           ${armv6t2-no}"
2678
    echo "ARM VFP enabled           ${armvfp-no}"
2679
    echo "IWMMXT enabled            ${iwmmxt-no}"
2680
    echo "NEON enabled              ${neon-no}"
2681
fi
2682
if enabled mips; then
2683
    echo "MMI enabled               ${mmi-no}"
2684
fi
2685
if enabled ppc; then
2686
    echo "AltiVec enabled           ${altivec-no}"
2687
    echo "PPC 4xx optimizations     ${ppc4xx-no}"
2688
    echo "dcbzl available           ${dcbzl-no}"
2689
    echo "performance report        ${powerpc_perf-no}"
2690
fi
2691
if enabled sparc; then
2692
    echo "VIS enabled               ${vis-no}"
2693
fi
2694
echo "gprof enabled             ${gprof-no}"
2695
echo "debug symbols             ${debug-no}"
2696
echo "strip symbols             ${stripping-no}"
2697
echo "optimizations             ${optimizations-no}"
2698
echo "static                    ${static-no}"
2699
echo "shared                    ${shared-no}"
2700
echo "postprocessing support    ${postproc-no}"
2701
echo "new filter support        ${avfilter-no}"
2702
echo "filters using lavformat   ${avfilter_lavf-no}"
2703
echo "network support           ${network-no}"
2704
if enabled network; then
2705
    echo "IPv6 support              ${ipv6-no}"
2706
fi
2707
echo "threading support         ${thread_type-no}"
2708
echo "SDL support               ${sdl-no}"
2709
echo "Sun medialib support      ${mlib-no}"
2710
echo "AVISynth enabled          ${avisynth-no}"
2711
echo "libdc1394 support         ${libdc1394-no}"
2712
echo "libdirac enabled          ${libdirac-no}"
2713
echo "libfaac enabled           ${libfaac-no}"
2714
echo "libfaad enabled           ${libfaad-no}"
2715
echo "libfaad dlopened          ${libfaadbin-no}"
2716
echo "libgsm enabled            ${libgsm-no}"
2717
echo "libmp3lame enabled        ${libmp3lame-no}"
2718
echo "libnut enabled            ${libnut-no}"
2719
echo "libopencore-amrnb support ${libopencore_amrnb-no}"
2720
echo "libopencore-amrwb support ${libopencore_amrwb-no}"
2721
echo "libopenjpeg enabled       ${libopenjpeg-no}"
2722
echo "libschroedinger enabled   ${libschroedinger-no}"
2723
echo "libspeex enabled          ${libspeex-no}"
2724
echo "libtheora enabled         ${libtheora-no}"
2725
echo "libvorbis enabled         ${libvorbis-no}"
2726
echo "libx264 enabled           ${libx264-no}"
2727
echo "libxvid enabled           ${libxvid-no}"
2728
echo "zlib enabled              ${zlib-no}"
2729
echo "bzlib enabled             ${bzlib-no}"
2730
echo
2731

    
2732
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
2733
    echo "Enabled ${type}s:"
2734
    eval list=\$$(toupper $type)_LIST
2735
    for part in $list; do
2736
        enabled $part && echo ${part%_*}
2737
    done | sort | pr -3 -t
2738
    echo
2739
done
2740

    
2741
license="LGPL version 2.1 or later"
2742
if enabled nonfree; then
2743
    license="nonfree and unredistributable"
2744
elif enabled gplv3; then
2745
    license="GPL version 3 or later"
2746
elif enabled lgplv3; then
2747
    license="LGPL version 3 or later"
2748
elif enabled gpl; then
2749
    license="GPL version 2 or later"
2750
fi
2751

    
2752
echo "License: $license"
2753

    
2754
echo "Creating config.mak and config.h..."
2755

    
2756
enabled stripping || strip="echo skipping strip"
2757

    
2758
cat > config.mak <<EOF
2759
# Automatically generated by configure - do not modify!
2760
ifndef FFMPEG_CONFIG_MAK
2761
FFMPEG_CONFIG_MAK=1
2762
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
2763
prefix=$prefix
2764
LIBDIR=\$(DESTDIR)$libdir
2765
SHLIBDIR=\$(DESTDIR)$shlibdir
2766
INCDIR=\$(DESTDIR)$incdir
2767
BINDIR=\$(DESTDIR)$bindir
2768
DATADIR=\$(DESTDIR)$datadir
2769
MANDIR=\$(DESTDIR)$mandir
2770
SRC_PATH="$source_path"
2771
SRC_PATH_BARE=$source_path
2772
BUILD_ROOT="$PWD"
2773
ARCH=$arch
2774
CC=$cc
2775
AS=$as
2776
LD=$ld
2777
DEPCC=$dep_cc
2778
YASM=$yasmexe
2779
AR=$ar
2780
RANLIB=$ranlib
2781
LN_S=$ln_s
2782
STRIP=$strip
2783
CPPFLAGS=$CPPFLAGS
2784
CFLAGS=$CFLAGS
2785
ASFLAGS=$ASFLAGS
2786
CC_O=$CC_O
2787
LDFLAGS=$LDFLAGS
2788
FFSERVERLDFLAGS=$FFSERVERLDFLAGS
2789
SHFLAGS=$SHFLAGS
2790
YASMFLAGS=$YASMFLAGS
2791
BUILDSUF=$build_suffix
2792
FULLNAME=$FULLNAME
2793
LIBPREF=$LIBPREF
2794
LIBSUF=$LIBSUF
2795
LIBNAME=$LIBNAME
2796
SLIBPREF=$SLIBPREF
2797
SLIBSUF=$SLIBSUF
2798
EXESUF=$EXESUF
2799
EXTRA_VERSION=$extra_version
2800
DEPFLAGS=$DEPFLAGS
2801
CCDEP=$CCDEP
2802
ASDEP=$ASDEP
2803
CC_DEPFLAGS=$CC_DEPFLAGS
2804
AS_DEPFLAGS=$AS_DEPFLAGS
2805
HOSTCC=$host_cc
2806
HOSTCFLAGS=$host_cflags
2807
HOSTEXESUF=$HOSTEXESUF
2808
HOSTLDFLAGS=$host_ldflags
2809
HOSTLIBS=$host_libs
2810
TARGET_EXEC=$target_exec
2811
TARGET_PATH=$target_path
2812
SDL_LIBS=$sdl_libs
2813
SDL_CFLAGS=$sdl_cflags
2814
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
2815
EXTRALIBS=$extralibs
2816
EOF
2817

    
2818
get_version(){
2819
    name=$1
2820
    file=$source_path/$2
2821
    eval $(grep "#define ${name}_VERSION_M" "$file" | awk '{ print $2"="$3 }')
2822
    eval ${name}_VERSION=\$${name}_VERSION_MAJOR.\$${name}_VERSION_MINOR.\$${name}_VERSION_MICRO
2823
    lcname=$(tolower $name)
2824
    eval echo "${lcname}_VERSION=\$${name}_VERSION" >> config.mak
2825
    eval echo "${lcname}_VERSION_MAJOR=\$${name}_VERSION_MAJOR" >> config.mak
2826
}
2827

    
2828
get_version LIBSWSCALE  libswscale/swscale.h
2829
get_version LIBPOSTPROC libpostproc/postprocess.h
2830
get_version LIBAVCODEC  libavcodec/avcodec.h
2831
get_version LIBAVDEVICE libavdevice/avdevice.h
2832
get_version LIBAVFORMAT libavformat/avformat.h
2833
get_version LIBAVUTIL   libavutil/avutil.h
2834
get_version LIBAVFILTER libavfilter/avfilter.h
2835

    
2836
enabled shared && cat >> config.mak <<EOF
2837
LIBTARGET=${LIBTARGET}
2838
SLIBNAME=${SLIBNAME}
2839
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
2840
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
2841
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
2842
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
2843
SLIB_INSTALL_EXTRA_CMD=${SLIB_INSTALL_EXTRA_CMD}
2844
SLIB_UNINSTALL_EXTRA_CMD=${SLIB_UNINSTALL_EXTRA_CMD}
2845
EOF
2846

    
2847
enabled asmalign_pot || align_shift="1 <<"
2848

    
2849
cat > $TMPH <<EOF
2850
/* Automatically generated by configure - do not modify! */
2851
#ifndef FFMPEG_CONFIG_H
2852
#define FFMPEG_CONFIG_H
2853
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
2854
#define FFMPEG_LICENSE "$(c_escape $license)"
2855
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
2856
#define CC_TYPE "$cc_type"
2857
#define CC_VERSION $cc_version
2858
#define restrict $_restrict
2859
#define ASMALIGN(ZEROBITS) ".align $align_shift " #ZEROBITS "\\n\\t"
2860
#define EXTERN_PREFIX "${extern_prefix}"
2861
#define EXTERN_ASM ${extern_prefix}
2862
EOF
2863

    
2864
if enabled small || disabled optimizations; then
2865
    echo "#define av_always_inline"  >> $TMPH
2866
fi
2867

    
2868
print_config ARCH_   $TMPH config.mak $ARCH_LIST
2869
print_config HAVE_   $TMPH config.mak $HAVE_LIST
2870
print_config CONFIG_ $TMPH config.mak $CONFIG_LIST       \
2871
                                      $CONFIG_EXTRA      \
2872
                                      $DECODER_LIST      \
2873
                                      $ENCODER_LIST      \
2874
                                      $HWACCEL_LIST      \
2875
                                      $PARSER_LIST       \
2876
                                      $BSF_LIST          \
2877
                                      $DEMUXER_LIST      \
2878
                                      $MUXER_LIST        \
2879
                                      $FILTER_LIST       \
2880
                                      $PROTOCOL_LIST     \
2881
                                      $INDEV_LIST        \
2882
                                      $OUTDEV_LIST       \
2883

    
2884
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
2885
echo "endif # FFMPEG_CONFIG_MAK" >> config.mak
2886

    
2887
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
2888
cmp -s $TMPH config.h &&
2889
    echo "config.h is unchanged" ||
2890
    mv -f $TMPH config.h
2891

    
2892
# build tree in object directory if source path is different from current one
2893
if enabled source_path_used; then
2894
    DIRS="
2895
        doc
2896
        libavcodec
2897
        libavcodec/$arch
2898
        libavdevice
2899
        libavfilter
2900
        libavformat
2901
        libavutil
2902
        libavutil/$arch
2903
        libpostproc
2904
        libswscale
2905
        libswscale/$arch
2906
        tests
2907
        tools
2908
    "
2909
    FILES="
2910
        Makefile
2911
        common.mak
2912
        subdir.mak
2913
        doc/texi2pod.pl
2914
        libavcodec/Makefile
2915
        libavdevice/Makefile
2916
        libavfilter/Makefile
2917
        libavformat/Makefile
2918
        libavutil/Makefile
2919
        libpostproc/Makefile
2920
        libswscale/Makefile
2921
    "
2922
    for dir in $DIRS ; do
2923
        mkdir -p $dir
2924
    done
2925
    for f in $FILES ; do
2926
        $ln_s "$source_path/$f" $f
2927
    done
2928
fi
2929

    
2930

    
2931
# build pkg-config files
2932

    
2933
pkgconfig_generate(){
2934
name=$1
2935
shortname=${name#lib}${build_suffix}
2936
comment=$2
2937
version=$3
2938
libs=$4
2939
requires=$5
2940
cat <<EOF > $name/$name.pc
2941
prefix=$prefix
2942
exec_prefix=\${prefix}
2943
libdir=$libdir
2944
includedir=$incdir
2945

    
2946
Name: $name
2947
Description: $comment
2948
Version: $version
2949
Requires: $(enabled shared || echo $requires)
2950
Requires.private: $(enabled shared && echo $requires)
2951
Conflicts:
2952
Libs: -L\${libdir} -l${shortname} $(enabled shared || echo $libs)
2953
Libs.private: $(enabled shared && echo $libs)
2954
Cflags: -I\${includedir}
2955
EOF
2956
cat <<EOF > $name/$name-uninstalled.pc
2957
prefix=
2958
exec_prefix=
2959
libdir=\${pcfiledir}
2960
includedir=${source_path}
2961

    
2962
Name: $name
2963
Description: $comment
2964
Version: $version
2965
Requires: $requires
2966
Conflicts:
2967
Libs: \${libdir}/${LIBPREF}${shortname}${LIBSUF} $libs
2968
Cflags: -I\${includedir}
2969
EOF
2970
}
2971

    
2972
pkgconfig_generate libavutil "FFmpeg utility library" "$LIBAVUTIL_VERSION"
2973
pkgconfig_generate libavcodec "FFmpeg codec library" "$LIBAVCODEC_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2974
pkgconfig_generate libavformat "FFmpeg container format library" "$LIBAVFORMAT_VERSION" "$extralibs" "libavcodec = $LIBAVCODEC_VERSION"
2975
pkgconfig_generate libavdevice "FFmpeg device handling library" "$LIBAVDEVICE_VERSION" "$extralibs" "libavformat = $LIBAVFORMAT_VERSION"
2976
enabled avfilter &&
2977
    pkgconfig_generate libavfilter "FFmpeg video filtering library" "$LIBAVFILTER_VERSION" "$extralibs" "libavutil = $LIBAVUTIL_VERSION"
2978
enabled postproc &&
2979
    pkgconfig_generate libpostproc "FFmpeg post processing library" "$LIBPOSTPROC_VERSION"
2980
pkgconfig_generate libswscale "FFmpeg image rescaling library" "$LIBSWSCALE_VERSION" "" "libavutil = $LIBAVUTIL_VERSION"