#!/bin/sh
#
# FFmpeg configure script
#
# Copyright (c) 2000-2002 Fabrice Bellard
# Copyright (c) 2005-2008 Diego Biurrun
# Copyright (c) 2005-2008 Mans Rullgard
#
# Prevent locale nonsense from breaking basic text processing.
LC_ALL=C
export LC_ALL
# make sure we are running under a compatible shell
# try to make this part work with most shells
try_exec(){
echo "Trying shell $1"
type "$1" > /dev/null 2>&1 && exec "$@"
}
unset foo
(: ${foo%%bar}) 2> /dev/null
E1="$?"
(: ${foo?}) 2> /dev/null
E2="$?"
if test "$E1" != 0 || test "$E2" = 0; then
echo "Broken shell detected. Trying alternatives."
export FF_CONF_EXEC
if test "0$FF_CONF_EXEC" -lt 1; then
FF_CONF_EXEC=1
try_exec bash "$0" "$@"
fi
if test "0$FF_CONF_EXEC" -lt 2; then
FF_CONF_EXEC=2
try_exec ksh "$0" "$@"
fi
if test "0$FF_CONF_EXEC" -lt 3; then
FF_CONF_EXEC=3
try_exec /usr/xpg4/bin/sh "$0" "$@"
fi
echo "No compatible shell script interpreter found."
echo "This configure script requires a POSIX-compatible shell"
echo "such as bash or ksh."
echo "THIS IS NOT A BUG IN FFMPEG, DO NOT REPORT IT AS SUCH."
echo "Instead, install a working POSIX-compatible shell."
echo "Disabling this configure test will create a broken FFmpeg."
if test "$BASH_VERSION" = '2.04.0(1)-release'; then
echo "This bash version ($BASH_VERSION) is broken on your platform."
echo "Upgrade to a later version if available."
fi
exit 1
fi
test -d /usr/xpg4/bin && PATH=/usr/xpg4/bin:$PATH
show_help(){
cat <<EOF
Usage: configure [options]
Options: [defaults in brackets after descriptions]
Help options:
--help print this message
--quiet Suppress showing informative output
--list-decoders show all available decoders
--list-encoders show all available encoders
--list-hwaccels show all available hardware accelerators
--list-demuxers show all available demuxers
--list-muxers show all available muxers
--list-parsers show all available parsers
--list-protocols show all available protocols
--list-bsfs show all available bitstream filters
--list-indevs show all available input devices
--list-outdevs show all available output devices
--list-filters show all available filters
Standard options:
--logfile=FILE log tests and output to FILE [ffbuild/config.log]
--disable-logging do not log configure debug information
--fatal-warnings fail if any configure warning is generated
--prefix=PREFIX install in PREFIX [$prefix_default]
--bindir=DIR install binaries in DIR [PREFIX/bin]
--datadir=DIR install data files in DIR [PREFIX/share/ffmpeg]
--docdir=DIR install documentation in DIR [PREFIX/share/doc/ffmpeg]
--libdir=DIR install libs in DIR [PREFIX/lib]
--shlibdir=DIR install shared libs in DIR [LIBDIR]
--incdir=DIR install includes in DIR [PREFIX/include]
--mandir=DIR install man page in DIR [PREFIX/share/man]
--pkgconfigdir=DIR install pkg-config files in DIR [LIBDIR/pkgconfig]
--enable-rpath use rpath to allow installing libraries in paths
not part of the dynamic linker search path
use rpath when linking programs (USE WITH CARE)
--install-name-dir=DIR Darwin directory name for installed targets
Licensing options:
--enable-gpl allow use of GPL code, the resulting libs
and binaries will be under GPL [no]
--enable-version3 upgrade (L)GPL to version 3 [no]
--enable-nonfree allow use of nonfree code, the resulting libs
and binaries will be unredistributable [no]
Configuration options:
--disable-static do not build static libraries [no]
--enable-shared build shared libraries [no]
--enable-small optimize for size instead of speed
--disable-runtime-cpudetect disable detecting CPU capabilities at runtime (smaller binary)
--enable-gray enable full grayscale support (slower color)
--disable-swscale-alpha disable alpha channel support in swscale
--disable-all disable building components, libraries and programs
Program options:
--disable-programs do not build command line programs
--disable-ffmpeg disable ffmpeg build
--disable-ffplay disable ffplay build
--disable-ffprobe disable ffprobe build
--disable-ffserver disable ffserver build
Documentation options:
--disable-doc do not build documentation
--disable-htmlpages do not build HTML documentation pages
--disable-manpages do not build man documentation pages
--disable-podpages do not build POD documentation pages
--disable-txtpages do not build text documentation pages
Component options:
--disable-avdevice disable libavdevice build
--disable-avcodec disable libavcodec build
--disable-avformat disable libavformat build
--disable-swresample disable libswresample build
--disable-swscale disable libswscale build
--disable-postproc disable libpostproc build
--disable-avfilter disable libavfilter build
--enable-avresample enable libavresample build [no]
--disable-pthreads disable pthreads [autodetect]
--disable-w32threads disable Win32 threads [autodetect]
--disable-os2threads disable OS/2 threads [autodetect]
--disable-network disable network support [no]
--disable-dct disable DCT code
--disable-dwt disable DWT code
--disable-error-resilience disable error resilience code
--disable-lsp disable LSP code
--disable-lzo disable LZO decoder code
--disable-mdct disable MDCT code
--disable-rdft disable RDFT code
--disable-fft disable FFT code
--disable-faan disable floating point AAN (I)DCT code
--disable-pixelutils disable pixel utils in libavutil
Individual component options:
--disable-everything disable all components listed below
--disable-encoder=NAME disable encoder NAME
--enable-encoder=NAME enable encoder NAME
--disable-encoders disable all encoders
--disable-decoder=NAME disable decoder NAME
--enable-decoder=NAME enable decoder NAME
--disable-decoders disable all decoders
--disable-hwaccel=NAME disable hwaccel NAME
--enable-hwaccel=NAME enable hwaccel NAME
--disable-hwaccels disable all hwaccels
--disable-muxer=NAME disable muxer NAME
--enable-muxer=NAME enable muxer NAME
--disable-muxers disable all muxers
--disable-demuxer=NAME disable demuxer NAME
--enable-demuxer=NAME enable demuxer NAME
--disable-demuxers disable all demuxers
--enable-parser=NAME enable parser NAME
--disable-parser=NAME disable parser NAME
--disable-parsers disable all parsers
--enable-bsf=NAME enable bitstream filter NAME
--disable-bsf=NAME disable bitstream filter NAME
--disable-bsfs disable all bitstream filters
--enable-protocol=NAME enable protocol NAME
--disable-protocol=NAME disable protocol NAME
--disable-protocols disable all protocols
--enable-indev=NAME enable input device NAME
--disable-indev=NAME disable input device NAME
--disable-indevs disable input devices
--enable-outdev=NAME enable output device NAME
--disable-outdev=NAME disable output device NAME
--disable-outdevs disable output devices
--disable-devices disable all devices
--enable-filter=NAME enable filter NAME
--disable-filter=NAME disable filter NAME
--disable-filters disable all filters
External library support:
Using any of the following switches will allow FFmpeg to link to the
corresponding external library. All the components depending on that library
will become enabled, if all their other dependencies are met and they are not
explicitly disabled. E.g. --enable-libwavpack will enable linking to
libwavpack and allow the libwavpack encoder to be built, unless it is
specifically disabled with --disable-encoder=libwavpack.
Note that only the system libraries are auto-detected. All the other external
libraries must be explicitly enabled.
Also note that the following help text describes the purpose of the libraries
themselves, not all their features will necessarily be usable by FFmpeg.
--enable-avisynth enable reading of AviSynth script files [no]
--disable-bzlib disable bzlib [autodetect]
--enable-chromaprint enable audio fingerprinting with chromaprint [no]
--enable-frei0r enable frei0r video filtering [no]
--enable-gcrypt enable gcrypt, needed for rtmp(t)e support
if openssl, librtmp or gmp is not used [no]
--enable-gmp enable gmp, needed for rtmp(t)e support
if openssl or librtmp is not used [no]
--enable-gnutls enable gnutls, needed for https support
if openssl is not used [no]
--disable-iconv disable iconv [autodetect]
--enable-jni enable JNI support [no]
--enable-ladspa enable LADSPA audio filtering [no]
--enable-libass enable libass subtitles rendering,
needed for subtitles and ass filter [no]
--enable-libbluray enable BluRay reading using libbluray [no]
--enable-libbs2b enable bs2b DSP library [no]
--enable-libcaca enable textual display using libcaca [no]
--enable-libcelt enable CELT decoding via libcelt [no]
--enable-libcdio enable audio CD grabbing with libcdio [no]
--enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
--enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
--enable-libflite enable flite (voice synthesis) support via libflite [no]
--enable-libfontconfig enable libfontconfig, useful for drawtext filter [no]
--enable-libfreetype enable libfreetype, needed for drawtext filter [no]
--enable-libfribidi enable libfribidi, improves drawtext filter [no]
--enable-libgme enable Game Music Emu via libgme [no]
--enable-libgsm enable GSM de/encoding via libgsm [no]
--enable-libiec61883 enable iec61883 via libiec61883 [no]
--enable-libilbc enable iLBC de/encoding via libilbc [no]
--enable-libkvazaar enable HEVC encoding via libkvazaar [no]
--enable-libmodplug enable ModPlug via libmodplug [no]
--enable-libmp3lame enable MP3 encoding via libmp3lame [no]
--enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
--enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
--enable-libopencv enable video filtering via libopencv [no]
--enable-libopenh264 enable H.264 encoding via OpenH264 [no]
--enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
--enable-libopenmpt enable decoding tracked files via libopenmpt [no]
--enable-libopus enable Opus de/encoding via libopus [no]
--enable-libpulse enable Pulseaudio input via libpulse [no]
--enable-librsvg enable SVG rasterization via librsvg [no]
--enable-librubberband enable rubberband needed for rubberband filter [no]
--enable-librtmp enable RTMP[E] support via librtmp [no]
--enable-libshine enable fixed-point MP3 encoding via libshine [no]
--enable-libsmbclient enable Samba protocol via libsmbclient [no]
--enable-libsnappy enable Snappy compression, needed for hap encoding [no]
--enable-libsoxr enable Include libsoxr resampling [no]
--enable-libspeex enable Speex de/encoding via libspeex [no]
--enable-libssh enable SFTP protocol via libssh [no]
--enable-libtesseract enable Tesseract, needed for ocr filter [no]
--enable-libtheora enable Theora encoding via libtheora [no]
--enable-libtwolame enable MP2 encoding via libtwolame [no]
--enable-libv4l2 enable libv4l2/v4l-utils [no]
--enable-libvidstab enable video stabilization using vid.stab [no]
--enable-libvmaf enable vmaf filter via libvmaf [no]
--enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
--enable-libvorbis enable Vorbis en/decoding via libvorbis,
native implementation exists [no]
--enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
--enable-libwavpack enable wavpack encoding via libwavpack [no]
--enable-libwebp enable WebP encoding via libwebp [no]
--enable-libx264 enable H.264 encoding via x264 [no]
--enable-libx265 enable HEVC encoding via x265 [no]
--enable-libxavs enable AVS encoding via xavs [no]
--enable-libxcb enable X11 grabbing using XCB [autodetect]
--enable-libxcb-shm enable X11 grabbing shm communication [autodetect]
--enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]
--enable-libxcb-shape enable X11 grabbing shape rendering [autodetect]
--enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
--enable-libzimg enable z.lib, needed for zscale filter [no]
--enable-libzmq enable message passing via libzmq [no]
--enable-libzvbi enable teletext support via libzvbi [no]
--disable-lzma disable lzma [autodetect]
--enable-decklink enable Blackmagic DeckLink I/O support [no]
--enable-libndi_newtek enable Newteck NDI I/O support [no]
--enable-mediacodec enable Android MediaCodec support [no]
--enable-libmysofa enable libmysofa, needed for sofalizer filter [no]
--enable-openal enable OpenAL 1.1 capture support [no]
--enable-opencl enable OpenCL code
--enable-opengl enable OpenGL rendering [no]
--enable-openssl enable openssl, needed for https support
if gnutls is not used [no]
--disable-schannel disable SChannel SSP, needed for TLS support on
Windows if openssl and gnutls are not used [autodetect]
--disable-sdl2 disable sdl2 [autodetect]
--disable-securetransport disable Secure Transport, needed for TLS support
on OSX if openssl and gnutls are not used [autodetect]
--disable-xlib disable xlib [autodetect]
--disable-zlib disable zlib [autodetect]
The following libraries provide various hardware acceleration features:
--disable-audiotoolbox disable Apple AudioToolbox code [autodetect]
--disable-cuda disable dynamically linked Nvidia CUDA code [autodetect]
--enable-cuda-sdk enable CUDA features that require the CUDA SDK [no]
--disable-cuvid disable Nvidia CUVID support [autodetect]
--disable-d3d11va disable Microsoft Direct3D 11 video acceleration code [autodetect]
--disable-dxva2 disable Microsoft DirectX 9 video acceleration code [autodetect]
--enable-libmfx enable Intel MediaSDK (AKA Quick Sync Video) code via libmfx [no]
--enable-libnpp enable Nvidia Performance Primitives-based code [no]
--enable-mmal enable Broadcom Multi-Media Abstraction Layer (Raspberry Pi) via MMAL [no]
--disable-nvenc disable Nvidia video encoding code [autodetect]
--enable-omx enable OpenMAX IL code [no]
--enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no]
--disable-vaapi disable Video Acceleration API (mainly Unix/Intel) code [autodetect]
--disable-vda disable Apple Video Decode Acceleration code [autodetect]
--disable-vdpau disable Nvidia Video Decode and Presentation API for Unix code [autodetect]
--disable-videotoolbox disable VideoToolbox code [autodetect]
Toolchain options:
--arch=ARCH select architecture [$arch]
--cpu=CPU select the minimum required CPU (affects
instruction selection, may crash on older CPUs)
--cross-prefix=PREFIX use PREFIX for compilation tools [$cross_prefix]
--progs-suffix=SUFFIX program name suffix []
--enable-cross-compile assume a cross-compiler is used
--sysroot=PATH root of cross-build tree
--sysinclude=PATH location of cross-build system headers
--target-os=OS compiler targets OS [$target_os]
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--target-samples=DIR path to samples directory on target
--tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
--toolchain=NAME set tool defaults according to NAME
--nm=NM use nm tool NM [$nm_default]
--ar=AR use archive tool AR [$ar_default]
--as=AS use assembler AS [$as_default]
--ln_s=LN_S use symbolic link tool LN_S [$ln_s_default]
--strip=STRIP use strip tool STRIP [$strip_default]
--windres=WINDRES use windows resource compiler WINDRES [$windres_default]
--x86asmexe=EXE use nasm-compatible assembler EXE [$x86asmexe_default]
--cc=CC use C compiler CC [$cc_default]
--cxx=CXX use C compiler CXX [$cxx_default]
--objcc=OCC use ObjC compiler OCC [$cc_default]
--dep-cc=DEPCC use dependency generator DEPCC [$cc_default]
--nvcc=NVCC use Nvidia CUDA compiler NVCC [$nvcc_default]
--ld=LD use linker LD [$ld_default]
--pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [$pkg_config_default]
--pkg-config-flags=FLAGS pass additional flags to pkgconf []
--ranlib=RANLIB use ranlib RANLIB [$ranlib_default]
--doxygen=DOXYGEN use DOXYGEN to generate API doc [$doxygen_default]
--host-cc=HOSTCC use host C compiler HOSTCC
--host-cflags=HCFLAGS use HCFLAGS when compiling for host
--host-cppflags=HCPPFLAGS use HCPPFLAGS when compiling for host
--host-ld=HOSTLD use host linker HOSTLD
--host-ldflags=HLDFLAGS use HLDFLAGS when linking for host
--host-libs=HLIBS use libs HLIBS when linking for host
--host-os=OS compiler host OS [$target_os]
--extra-cflags=ECFLAGS add ECFLAGS to CFLAGS [$CFLAGS]
--extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS [$CXXFLAGS]
--extra-objcflags=FLAGS add FLAGS to OBJCFLAGS [$CFLAGS]
--extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS [$LDFLAGS]
--extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS [$LDEXEFLAGS]
--extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS [$LDLIBFLAGS]
--extra-libs=ELIBS add ELIBS [$ELIBS]
--extra-version=STRING version string suffix []
--optflags=OPTFLAGS override optimization-related compiler flags
--nvccflags=NVCCFLAGS override nvcc flags [$nvccflags_default]
--build-suffix=SUFFIX library name suffix []
--enable-pic build position-independent code
--enable-thumb compile for Thumb instruction set
--enable-lto use link-time optimization
--env="ENV=override" override the environment variables
Advanced options (experts only):
--malloc-prefix=PREFIX prefix malloc and related names with PREFIX
--custom-allocator=NAME use a supported custom allocator
--disable-symver disable symbol versioning
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--disable-safe-bitstream-reader
disable buffer boundary checking in bitreaders
(faster, but may crash)
--sws-max-filter-size=N the max filter size swscale uses [$sws_max_filter_size_default]
Optimization options (experts only):
--disable-asm disable all assembly optimizations
--disable-altivec disable AltiVec optimizations
--disable-vsx disable VSX optimizations
--disable-power8 disable POWER8 optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmxext disable MMXEXT optimizations
--disable-sse disable SSE optimizations
--disable-sse2 disable SSE2 optimizations
--disable-sse3 disable SSE3 optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-sse4 disable SSE4 optimizations
--disable-sse42 disable SSE4.2 optimizations
--disable-avx disable AVX optimizations
--disable-xop disable XOP optimizations
--disable-fma3 disable FMA3 optimizations
--disable-fma4 disable FMA4 optimizations
--disable-avx2 disable AVX2 optimizations
--disable-aesni disable AESNI optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-vfp disable VFP optimizations
--disable-neon disable NEON optimizations
--disable-inline-asm disable use of inline assembly
--disable-x86asm disable use of standalone x86 assembly
--disable-mipsdsp disable MIPS DSP ASE R1 optimizations
--disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
--disable-msa disable MSA optimizations
--disable-mipsfpu disable floating point MIPS optimizations
--disable-mmi disable Loongson SIMD optimizations
--disable-fast-unaligned consider unaligned accesses slow
Developer options (useful when working on FFmpeg itself):
--disable-debug disable debugging symbols
--enable-debug=LEVEL set the debug level [$debuglevel]
--disable-optimizations disable compiler optimizations
--enable-extra-warnings enable more compiler warnings
--disable-stripping disable stripping of executables and shared libraries
--assert-level=level 0(default), 1 or 2, amount of assertion testing,
2 causes a slowdown at runtime.
--enable-memory-poisoning fill heap uninitialized allocated space with arbitrary data
--valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
leaks and errors, using the specified valgrind binary.
Cannot be combined with --target-exec
--enable-ftrapv Trap arithmetic overflows
--samples=PATH location of test samples for FATE, if not set use
\$FATE_SAMPLES at make invocation time.
--enable-neon-clobber-test check NEON registers for clobbering (should be
used only for debugging purposes)
--enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
should be used only for debugging purposes)
--enable-random randomly enable/disable components
--disable-random
--enable-random=LIST randomly enable/disable specific components or
--disable-random=LIST component groups. LIST is a comma-separated list
of NAME[:PROB] entries where NAME is a component
(group) and PROB the probability associated with
NAME (default 0.5).
--random-seed=VALUE seed value for --enable/disable-random
--disable-valgrind-backtrace do not print a backtrace under Valgrind
(only applies to --disable-optimizations builds)
--enable-osfuzz Enable building fuzzer tool
--libfuzzer=PATH path to libfuzzer
--ignore-tests=TESTS comma-separated list (without "fate-" prefix
in the name) of tests whose result is ignored
NOTE: Object files are built at the place where configure is launched.
EOF
exit 0
}
quotes='""'
if test -t 1 && which tput >/dev/null 2>&1; then
ncolors=$(tput colors)
if test -n "$ncolors" && test $ncolors -ge 8; then
bold_color=$(tput bold)
warn_color=$(tput setaf 3)
error_color=$(tput setaf 1)
reset_color=$(tput sgr0)
fi
# 72 used instead of 80 since that's the default of pr
ncols=$(tput cols)
fi
: ${ncols:=72}
log(){
echo "$@" >> $logfile
}
log_file(){
log BEGIN $1
pr -n -t $1 >> $logfile
log END $1
}
warn(){
log "WARNING: $*"
WARNINGS="${WARNINGS}WARNING: $*\n"
}
die(){
log "$@"
echo "$error_color$bold_color$@$reset_color"
cat <<EOF
If you think configure made a mistake, make sure you are using the latest
version from Git. If the latest version fails, report the problem to the
ffmpeg-user@ffmpeg.org mailing list or IRC #ffmpeg on irc.freenode.net.
EOF
if disabled logging; then
cat <<EOF
Rerun configure with logging enabled (do not use --disable-logging), and
include the log this produces with your report.
EOF
else
cat <<EOF
Include the log file "$logfile" produced by configure as this will help
solve the problem.
EOF
fi
exit 1
}
# Avoid locale weirdness, besides we really just want to translate ASCII.
toupper(){
echo "$@" | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ
}
tolower(){
echo "$@" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz
}
c_escape(){
echo "$*" | sed 's/["\\]/\\\0/g'
}
sh_quote(){
v=$(echo "$1" | sed "s/'/'\\\\''/g")
test "x$v" = "x${v#*[!A-Za-z0-9_/.+-]}" || v="'$v'"
echo "$v"
}
cleanws(){
echo "$@" | sed 's/^ *//;s/[[:space:]][[:space:]]*/ /g;s/ *$//'
}
filter(){
pat=$1
shift
for v; do
eval "case $v in $pat) printf '%s ' $v ;; esac"
done
}
filter_out(){
pat=$1
shift
for v; do
eval "case $v in $pat) ;; *) printf '%s ' $v ;; esac"
done
}
map(){
m=$1
shift
for v; do eval $m; done
}
add_suffix(){
suffix=$1
shift
for v; do echo ${v}${suffix}; done
}
set_all(){
value=$1
shift
for var in $*; do
eval $var=$value
done
}
set_weak(){
value=$1
shift
for var; do
eval : \${$var:=$value}
done
}
sanitize_var_name(){
echo $@ | sed 's/[^A-Za-z0-9_]/_/g'
}
set_safe(){
var=$1
shift
eval $(sanitize_var_name "$var")='$*'
}
get_safe(){
eval echo \$$(sanitize_var_name "$1")
}
pushvar(){
for pvar in $*; do
eval level=\${${pvar}_level:=0}
eval ${pvar}_${level}="\$$pvar"
eval ${pvar}_level=$(($level+1))
done
}
popvar(){
for pvar in $*; do
eval level=\${${pvar}_level:-0}
test $level = 0 && continue
eval level=$(($level-1))
eval $pvar="\${${pvar}_${level}}"
eval ${pvar}_level=$level
eval unset ${pvar}_${level}
done
}
request(){
for var in $*; do
eval ${var}_requested=yes
eval $var=
done
}
enable(){
set_all yes $*
}
disable(){
set_all no $*
}
enable_weak(){
set_weak yes $*
}
disable_weak(){
set_weak no $*
}
enable_safe(){
for var; do
enable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
done
}
disable_safe(){
for var; do
disable $(echo "$var" | sed 's/[^A-Za-z0-9_]/_/g')
done
}
do_enable_deep(){
for var; do
enabled $var && continue
eval sel="\$${var}_select"
eval sgs="\$${var}_suggest"
pushvar var sgs
enable_deep $sel
popvar sgs
enable_deep_weak $sgs
popvar var
done
}
enable_deep(){
do_enable_deep $*
enable $*
}
enable_deep_weak(){
for var; do
disabled $var && continue
pushvar var
do_enable_deep $var
popvar var
enable_weak $var
done
}
requested(){
test "${1#!}" = "$1" && op='=' || op=!=
eval test "x\$${1#!}_requested" $op "xyes"
}
enabled(){
test "${1#!}" = "$1" && op='=' || op=!=
eval test "x\$${1#!}" $op "xyes"
}
disabled(){
test "${1#!}" = "$1" && op='=' || op=!=
eval test "x\$${1#!}" $op "xno"
}
enabled_all(){
for opt; do
enabled $opt || return 1
done
}
disabled_all(){
for opt; do
disabled $opt || return 1
done
}
enabled_any(){
for opt; do
enabled $opt && return 0
done
}
disabled_any(){
for opt; do
disabled $opt && return 0
done
return 1
}
set_default(){
for opt; do
eval : \${$opt:=\$${opt}_default}
done
}
is_in(){
value=$1
shift
for var in $*; do
[ $var = $value ] && return 0
done
return 1
}
do_check_deps(){
for cfg; do
cfg="${cfg#!}"
enabled ${cfg}_checking && die "Circular dependency for $cfg."
disabled ${cfg}_checking && continue
enable ${cfg}_checking
append allopts $cfg
eval dep_all="\$${cfg}_deps"
eval dep_any="\$${cfg}_deps_any"
eval dep_sel="\$${cfg}_select"
eval dep_sgs="\$${cfg}_suggest"
eval dep_ifa="\$${cfg}_if"
eval dep_ifn="\$${cfg}_if_any"
pushvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
do_check_deps $dep_all $dep_any $dep_sel $dep_sgs $dep_ifa $dep_ifn
popvar cfg dep_all dep_any dep_sel dep_sgs dep_ifa dep_ifn
[ -n "$dep_ifa" ] && { enabled_all $dep_ifa && enable_weak $cfg; }
[ -n "$dep_ifn" ] && { enabled_any $dep_ifn && enable_weak $cfg; }
enabled_all $dep_all || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not all dependencies are satisfied: $dep_all"; }
enabled_any $dep_any || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but not any dependency is satisfied: $dep_any"; }
disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
if enabled $cfg; then
enable_deep $dep_sel
enable_deep_weak $dep_sgs
fi
disable ${cfg}_checking
done
}
check_deps(){
unset allopts
do_check_deps "$@"
for cfg in $allopts; do
enabled $cfg || continue
eval dep_extralibs="\$${cfg}_extralibs"
test -n "$dep_extralibs" && add_extralibs $dep_extralibs
done
}
print_config(){
pfx=$1
files=$2
shift 2
map 'eval echo "$v \${$v:-no}"' "$@" |
awk "BEGIN { split(\"$files\", files) }
{
c = \"$pfx\" toupper(\$1);
v = \$2;
sub(/yes/, 1, v);
sub(/no/, 0, v);
for (f in files) {
file = files[f];
if (file ~ /\\.h\$/) {
printf(\"#define %s %d\\n\", c, v) >>file;
} else if (file ~ /\\.asm\$/) {
printf(\"%%define %s %d\\n\", c, v) >>file;
} else if (file ~ /\\.mak\$/) {
n = -v ? \"\" : \"!\";
printf(\"%s%s=yes\\n\", n, c) >>file;
} else if (file ~ /\\.texi\$/) {
pre = -v ? \"\" : \"@c \";
yesno = \$2;
c2 = tolower(c);
gsub(/_/, \"-\", c2);
printf(\"%s@set %s %s\\n\", pre, c2, yesno) >>file;
}
}
}"
}
print_enabled(){
suf=$1
shift
for v; do
enabled $v && printf "%s\n" ${v%$suf}
done
}
append(){
var=$1
shift
eval "$var=\"\$$var $*\""
}
prepend(){
var=$1
shift
eval "$var=\"$* \$$var\""
}
unique(){
var=$1
uniq_list=""
for tok in $(eval echo \$$var); do
uniq_list="$(filter_out $tok $uniq_list) $tok"
done
eval "$var=\"${uniq_list}\""
}
add_cppflags(){
append CPPFLAGS "$@"
}
add_cflags(){
append CFLAGS $($cflags_filter "$@")
}
add_cflags_headers(){
append CFLAGS_HEADERS $($cflags_filter "$@")
}
add_cxxflags(){
append CXXFLAGS $($cflags_filter "$@")
}
add_asflags(){
append ASFLAGS $($asflags_filter "$@")
}
add_objcflags(){
append OBJCFLAGS $($objcflags_filter "$@")
}
add_ldflags(){
append LDFLAGS $($ldflags_filter "$@")
}
add_ldexeflags(){
append LDEXEFLAGS $($ldflags_filter "$@")
}
add_ldlibflags(){
append LDLIBFLAGS $($ldflags_filter "$@")
}
add_stripflags(){
append ASMSTRIPFLAGS "$@"
}
add_extralibs(){
prepend extralibs $($ldflags_filter "$@")
}
add_host_cppflags(){
append host_cppflags "$@"
}
add_host_cflags(){
append host_cflags $($host_cflags_filter "$@")
}
add_host_ldflags(){
append host_ldflags $($host_ldflags_filter "$@")
}
add_compat(){
append compat_objs $1
shift
map 'add_cppflags -D$v' "$@"
}
check_cmd(){
log "$@"
"$@" >> $logfile 2>&1
}
check_stat(){
log check_stat "$@"
stat "$1" >> $logfile 2>&1
}
cc_o(){
eval printf '%s\\n' $CC_O
}
cc_e(){
eval printf '%s\\n' $CC_E
}
check_cc(){
log check_cc "$@"
cat > $TMPC
log_file $TMPC
check_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
}
check_cxx(){
log check_cxx "$@"
cat > $TMPCPP
log_file $TMPCPP
check_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
}
check_objcc(){
log check_objcc "$@"
cat > $TMPM
log_file $TMPM
check_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
}
check_cpp(){
log check_cpp "$@"
cat > $TMPC
log_file $TMPC
check_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
}
as_o(){
eval printf '%s\\n' $AS_O
}
check_as(){
log check_as "$@"
cat > $TMPS
log_file $TMPS
check_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
}
check_inline_asm(){
log check_inline_asm "$@"
name="$1"
code="$2"
shift 2
disable $name
check_cc "$@" <<EOF && enable $name
void foo(void){ __asm__ volatile($code); }
EOF
}
check_inline_asm_flags(){
log check_inline_asm_flags "$@"
name="$1"
code="$2"
flags=''
shift 2
while [ "$1" != "" ]; do
append flags $1
shift
done;
disable $name
cat > $TMPC <<EOF
void foo(void){ __asm__ volatile($code); }
EOF
log_file $TMPC
check_cmd $cc $CPPFLAGS $CFLAGS $flags "$@" $CC_C $(cc_o $TMPO) $TMPC &&
enable $name && add_cflags $flags && add_asflags $flags && add_ldflags $flags
}
check_insn(){
log check_insn "$@"
check_inline_asm ${1}_inline "\"$2\""
echo "$2" | check_as && enable ${1}_external || disable ${1}_external
}
check_x86asm(){
log check_x86asm "$@"
echo "$1" > $TMPS
log_file $TMPS
shift 1
check_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" -o $TMPO $TMPS
}
ld_o(){
eval printf '%s\\n' $LD_O
}
check_ld(){
log check_ld "$@"
type=$1
shift 1
flags=$(filter_out '-l*|*.so' $@)
libs=$(filter '-l*|*.so' $@)
check_$type $($cflags_filter $flags) || return
flags=$($ldflags_filter $flags)
libs=$($ldflags_filter $libs)
check_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
}
print_include(){
hdr=$1
test "${hdr%.h}" = "${hdr}" &&
echo "#include $hdr" ||
echo "#include <$hdr>"
}
check_code(){
log check_code "$@"
check=$1
headers=$2
code=$3
shift 3
{
for hdr in $headers; do
print_include $hdr
done
echo "int main(void) { $code; return 0; }"
} | check_$check "$@"
}
check_cppflags(){
log check_cppflags "$@"
check_cpp "$@" <<EOF && append CPPFLAGS "$@"
int x;
EOF
}
test_cflags(){
log test_cflags "$@"
set -- $($cflags_filter "$@")
check_cc "$@" <<EOF
int x;
EOF
}
check_cflags(){
log check_cflags "$@"
test_cflags "$@" && add_cflags "$@"
}
check_cxxflags(){
log check_cxxflags "$@"
set -- $($cflags_filter "$@")
check_cxx "$@" <<EOF && append CXXFLAGS "$@"
int x;
EOF
}
test_objcflags(){
log test_objcflags "$@"
set -- $($objcflags_filter "$@")
check_objcc "$@" <<EOF
int x;
EOF
}
check_objcflags(){
log check_objcflags "$@"
test_objcflags "$@" && add_objcflags "$@"
}
test_ldflags(){
log test_ldflags "$@"
check_ld "cc" "$@" <<EOF
int main(void){ return 0; }
EOF
}
check_ldflags(){
log check_ldflags "$@"
test_ldflags "$@" && add_ldflags "$@"
}
test_stripflags(){
log test_stripflags "$@"
# call check_cc to get a fresh TMPO
check_cc <<EOF
int main(void) { return 0; }
EOF
check_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
}
check_stripflags(){
log check_stripflags "$@"
test_stripflags "$@" && add_stripflags "$@"
}
check_header(){
log check_header "$@"
header=$1
shift
disable_safe $header
check_cpp "$@" <<EOF && enable_safe $header
#include <$header>
int x;
EOF
}
check_header_objcc(){
log check_header_objcc "$@"
rm -f -- "$TMPO"
header=$1
shift
disable_safe $header
{
echo "#include <$header>"
echo "int main(void) { return 0; }"
} | check_objcc && check_stat "$TMPO" && enable_safe $headers
}
check_func(){
log check_func "$@"
func=$1
shift
disable $func
check_ld "cc" "$@" <<EOF && enable $func
extern int $func();
int main(void){ $func(); }
EOF
}
check_complexfunc(){
log check_complexfunc "$@"
func=$1
narg=$2
shift 2
test $narg = 2 && args="f, g" || args="f * I"
disable $func
check_ld "cc" "$@" <<EOF && enable $func
#include <complex.h>
#include <math.h>
float foo(complex float f, complex float g) { return $func($args); }
int main(void){ return (int) foo; }
EOF
}
check_mathfunc(){
log check_mathfunc "$@"
func=$1
narg=$2
shift 2
test $narg = 2 && args="f, g" || args="f"
disable $func
check_ld "cc" "$@" <<EOF && enable $func
#include <math.h>
float foo(float f, float g) { return $func($args); }
int main(void){ return (int) foo; }
EOF
}
check_func_headers(){
log check_func_headers "$@"
headers=$1
funcs=$2
shift 2
{
for hdr in $headers; do
print_include $hdr
done
echo "#include <stdint.h>"
for func in $funcs; do
echo "long check_$func(void) { return (long) $func; }"
done
echo "int main(void) { int ret = 0;"
# LTO could optimize out the test functions without this
for func in $funcs; do
echo " ret |= ((intptr_t)check_$func) & 0xFFFF;"
done
echo "return ret; }"
} | check_ld "cc" "$@" && enable $funcs && enable_safe $headers
}
check_class_headers_cpp(){
log check_class_headers_cpp "$@"
headers=$1
classes=$2
shift 2
{
for hdr in $headers; do
echo "#include <$hdr>"
done
echo "int main(void) { "
i=1
for class in $classes; do
echo "$class obj$i;"
i=$(expr $i + 1)
done
echo "return 0; }"
} | check_ld "cxx" "$@" && enable $funcs && enable_safe $headers
}
check_cpp_condition(){
log check_cpp_condition "$@"
header=$1
condition=$2
shift 2
check_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
test_cflags_cc(){
log test_cflags_cc "$@"
flags=$1
header=$2
condition=$3
shift 3
set -- $($cflags_filter "$flags")
check_cc "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
check_lib(){
log check_lib "$@"
name="$1"
headers="$2"
funcs="$3"
shift 3
disable $name
check_func_headers "$headers" "$funcs" "$@" &&
enable $name && add_extralibs "$@"
}
check_lib_cpp(){
log check_lib_cpp "$@"
headers="$1"
classes="$2"
shift 2
check_class_headers_cpp "$headers" "$classes" "$@" && add_extralibs "$@"
}
check_pkg_config(){
log check_pkg_config "$@"
pkg_version="$1"
pkg="${1%% *}"
headers="$2"
funcs="$3"
shift 3
check_cmd $pkg_config --exists --print-errors $pkg_version || return
pkg_cflags=$($pkg_config --cflags $pkg_config_flags $pkg)
pkg_libs=$($pkg_config --libs $pkg_config_flags $pkg)
check_func_headers "$headers" "$funcs" $pkg_cflags $pkg_libs "$@" &&
set_safe "${pkg}_cflags" $pkg_cflags &&
set_safe "${pkg}_extralibs" $pkg_libs
}
check_exec(){
check_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}
check_exec_crash(){
log check_exec_crash "$@"
code=$(cat)
# exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
# are safe but may not be available everywhere. Thus we use
# raise(SIGTERM) instead. The check is run in a subshell so we
# can redirect the "Terminated" message from the shell. SIGBUS
# is not defined by standard C so it is used conditionally.
(check_exec "$@") >> $logfile 2>&1 <<EOF
#include <signal.h>
static void sighandler(int sig){
raise(SIGTERM);
}
int foo(void){
$code
}
int (*func_ptr)(void) = foo;
int main(void){
signal(SIGILL, sighandler);
signal(SIGFPE, sighandler);
signal(SIGSEGV, sighandler);
#ifdef SIGBUS
signal(SIGBUS, sighandler);
#endif
return func_ptr();
}
EOF
}
check_type(){
log check_type "$@"
headers=$1
type=$2
shift 2
disable_safe "$type"
check_code cc "$headers" "$type v" "$@" && enable_safe "$type"
}
check_struct(){
log check_struct "$@"
headers=$1
struct=$2
member=$3
shift 3
disable_safe "${struct}_${member}"
check_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
enable_safe "${struct}_${member}"
}
check_builtin(){
log check_builtin "$@"
name=$1
headers=$2
builtin=$3
shift 3
disable "$name"
check_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
}
check_compile_assert(){
log check_compile_assert "$@"
name=$1
headers=$2
condition=$3
shift 3
disable "$name"
check_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
}
require(){
log require "$@"
name_version="$1"
name="${1%% *}"
headers="$2"
func="$3"
shift 3
check_lib $name "$headers" $func "$@" || die "ERROR: $name_version not found"
}
require_cpp(){
name="$1"
headers="$2"
classes="$3"
shift 3
check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
}
use_pkg_config(){
log use_pkg_config "$@"
pkg="$1"
check_pkg_config "$@" || return 1
add_cflags $(get_safe "${pkg}_cflags")
add_extralibs $(get_safe "${pkg}_extralibs")
}
require_pkg_config(){
use_pkg_config "$@" || die "ERROR: $pkg not found using pkg-config$pkg_config_fail_message"
}
hostcc_e(){
eval printf '%s\\n' $HOSTCC_E
}
hostcc_o(){
eval printf '%s\\n' $HOSTCC_O
}
check_host_cc(){
log check_host_cc "$@"
cat > $TMPC
log_file $TMPC
check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
}
check_host_cpp(){
log check_host_cpp "$@"
cat > $TMPC
log_file $TMPC
check_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
}
check_host_cppflags(){
log check_host_cppflags "$@"
check_host_cpp "$@" <<EOF && append host_cppflags "$@"
int x;
EOF
}
check_host_cflags(){
log check_host_cflags "$@"
set -- $($host_cflags_filter "$@")
check_host_cc "$@" <<EOF && append host_cflags "$@"
int x;
EOF
}
check_host_cpp_condition(){
log check_host_cpp_condition "$@"
header=$1
condition=$2
shift 2
check_host_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
cp_if_changed(){
cmp -s "$1" "$2" && { test "$quiet" != "yes" && echo "$2 is unchanged"; } && return
mkdir -p "$(dirname $2)"
cp -f "$1" "$2"
}
# CONFIG_LIST contains configurable options, while HAVE_LIST is for
# system-dependent things.
AVCODEC_COMPONENTS="
bsfs
decoders
encoders
hwaccels
parsers
"
AVDEVICE_COMPONENTS="
indevs
outdevs
"
AVFILTER_COMPONENTS="
filters
"
AVFORMAT_COMPONENTS="
demuxers
muxers
protocols
"
AVRESAMPLE_COMPONENTS=""
AVUTIL_COMPONENTS=""
COMPONENT_LIST="
$AVCODEC_COMPONENTS
$AVDEVICE_COMPONENTS
$AVFILTER_COMPONENTS
$AVFORMAT_COMPONENTS
$AVRESAMPLE_COMPONENTS
$AVUTIL_COMPONENTS
"
EXAMPLE_LIST="
avio_dir_cmd_example
avio_reading_example
decode_audio_example
decode_video_example
demuxing_decoding_example
encode_audio_example
encode_video_example
extract_mvs_example
filter_audio_example
filtering_audio_example
filtering_video_example
http_multiclient_example
hw_decode_example
metadata_example
muxing_example
qsvdec_example
remuxing_example
resampling_audio_example
scaling_video_example
transcode_aac_example
transcoding_example
"
EXTERNAL_AUTODETECT_LIBRARY_LIST="
bzlib
iconv
libxcb
libxcb_shm
libxcb_shape
libxcb_xfixes
lzma
schannel
sdl
sdl2
securetransport
xlib
zlib
"
EXTERNAL_LIBRARY_GPL_LIST="
avisynth
frei0r
libcdio
librubberband
libvidstab
libx264
libx265
libxavs
libxvid
"
EXTERNAL_LIBRARY_NONFREE_LIST="
decklink
libndi_newtek
libfdk_aac
openssl
"
EXTERNAL_LIBRARY_VERSION3_LIST="
gmp
libopencore_amrnb
libopencore_amrwb
libvo_amrwbenc
"
EXTERNAL_LIBRARY_GPLV3_LIST="
libsmbclient
"
EXTERNAL_LIBRARY_LIST="
$EXTERNAL_AUTODETECT_LIBRARY_LIST
$EXTERNAL_LIBRARY_GPL_LIST
$EXTERNAL_LIBRARY_NONFREE_LIST
$EXTERNAL_LIBRARY_VERSION3_LIST
$EXTERNAL_LIBRARY_GPLV3_LIST
chromaprint
gcrypt
gnutls
jni
ladspa
libass
libbluray
libbs2b
libcaca
libcelt
libdc1394
libflite
libfontconfig
libfreetype
libfribidi
libgme
libgsm
libiec61883
libilbc
libkvazaar
libmodplug
libmp3lame
libmysofa
libopencv
libopenh264
libopenjpeg
libopenmpt
libopus
libpulse
librsvg
librtmp
libshine
libsmbclient
libsnappy
libsoxr
libspeex
libssh
libtesseract
libtheora
libtwolame
libv4l2
libvmaf
libvorbis
libvpx
libwavpack
libwebp
libzimg
libzmq
libzvbi
mediacodec
openal
opencl
opengl
videotoolbox
"
HWACCEL_AUTODETECT_LIBRARY_LIST="
audiotoolbox
crystalhd
cuda
cuvid
d3d11va
dxva2
nvenc
vaapi
vda
vdpau
videotoolbox_hwaccel
xvmc
"
HWACCEL_LIBRARY_NONFREE_LIST="
cuda_sdk
libnpp
"
HWACCEL_LIBRARY_LIST="
$HWACCEL_AUTODETECT_LIBRARY_LIST
$HWACCEL_LIBRARY_NONFREE_LIST
libmfx
mmal
omx
"
DOCUMENT_LIST="
doc
htmlpages
manpages
podpages
txtpages
"
FEATURE_LIST="
ftrapv
gray
hardcoded_tables
omx_rpi
runtime_cpudetect
safe_bitstream_reader
shared
small
static
swscale_alpha
"
LIBRARY_LIST="
avcodec
avdevice
avfilter
avformat
avresample
avutil
postproc
swresample
swscale
"
LICENSE_LIST="
gpl
nonfree
version3
"
PROGRAM_LIST="
ffplay
ffprobe
ffserver
ffmpeg
"
SUBSYSTEM_LIST="
dct
dwt
error_resilience
faan
fast_unaligned
fft
lsp
lzo
mdct
pixelutils
network
rdft
"
# COMPONENT_LIST needs to come last to ensure correct dependency checking
CONFIG_LIST="
$DOCUMENT_LIST
$EXAMPLE_LIST
$EXTERNAL_LIBRARY_LIST
$HWACCEL_LIBRARY_LIST
$FEATURE_LIST
$LICENSE_LIST
$LIBRARY_LIST
$PROGRAM_LIST
$SUBSYSTEM_LIST
fontconfig
memory_poisoning
neon_clobber_test
ossfuzz
pic
thumb
valgrind_backtrace
xmm_clobber_test
$COMPONENT_LIST
"
THREADS_LIST="
pthreads
os2threads
w32threads
"
ATOMICS_LIST="
atomics_gcc
atomics_suncc
atomics_win32
"
AUTODETECT_LIBS="
$EXTERNAL_AUTODETECT_LIBRARY_LIST
$HWACCEL_AUTODETECT_LIBRARY_LIST
$THREADS_LIST
"
ARCH_LIST="
aarch64
alpha
arm
avr32
avr32_ap
avr32_uc
bfin
ia64
m68k
mips
mips64
parisc
ppc
ppc64
s390
sh4
sparc
sparc64
tilegx
tilepro
tomi
x86
x86_32
x86_64
"
ARCH_EXT_LIST_ARM="
armv5te
armv6
armv6t2
armv8
neon
vfp
vfpv3
setend
"
ARCH_EXT_LIST_MIPS="
mipsfpu
mips32r2
mips32r5
mips64r2
mips32r6
mips64r6
mipsdsp
mipsdspr2
msa
"
ARCH_EXT_LIST_LOONGSON="
loongson2
loongson3
mmi
"
ARCH_EXT_LIST_X86_SIMD="
aesni
amd3dnow
amd3dnowext
avx
avx2
fma3
fma4
mmx
mmxext
sse
sse2
sse3
sse4
sse42
ssse3
xop
"
ARCH_EXT_LIST_PPC="
altivec
dcbzl
ldbrx
power8
ppc4xx
vsx
"
ARCH_EXT_LIST_X86="
$ARCH_EXT_LIST_X86_SIMD
cpunop
i686
"
ARCH_EXT_LIST="
$ARCH_EXT_LIST_ARM
$ARCH_EXT_LIST_PPC
$ARCH_EXT_LIST_X86
$ARCH_EXT_LIST_MIPS
$ARCH_EXT_LIST_LOONGSON
"
ARCH_FEATURES="
aligned_stack
fast_64bit
fast_clz
fast_cmov
local_aligned_8
local_aligned_16
local_aligned_32
simd_align_16
simd_align_32
"
BUILTIN_LIST="
atomic_cas_ptr
machine_rw_barrier
MemoryBarrier
mm_empty
rdtsc
sarestart
sem_timedwait
sync_val_compare_and_swap
"
HAVE_LIST_CMDLINE="
inline_asm
symver
x86asm
"
HAVE_LIST_PUB="
bigendian
fast_unaligned
"
HEADERS_LIST="
alsa_asoundlib_h
altivec_h
arpa_inet_h
asm_types_h
cdio_paranoia_h
cdio_paranoia_paranoia_h
cuda_h
d3d11_h
dispatch_dispatch_h
dev_bktr_ioctl_bt848_h
dev_bktr_ioctl_meteor_h
dev_ic_bt8xx_h
dev_video_bktr_ioctl_bt848_h
dev_video_meteor_ioctl_meteor_h
direct_h
dirent_h
dlfcn_h
dxgidebug_h
dxva_h
ES2_gl_h
gsm_h
io_h
mach_mach_time_h
machine_ioctl_bt848_h
machine_ioctl_meteor_h
malloc_h
opencv2_core_core_c_h
openjpeg_2_2_openjpeg_h
openjpeg_2_1_openjpeg_h
openjpeg_2_0_openjpeg_h
openjpeg_1_5_openjpeg_h
OpenGL_gl3_h
poll_h
sndio_h
soundcard_h
stdatomic_h
sys_mman_h
sys_param_h
sys_resource_h
sys_select_h
sys_soundcard_h
sys_time_h
sys_un_h
sys_videoio_h
termios_h
udplite_h
unistd_h
valgrind_valgrind_h
windows_h
winsock2_h
"
INTRINSICS_LIST="
intrinsics_neon
"
COMPLEX_FUNCS="
cabs
cexp
"
MATH_FUNCS="
atanf
atan2f
cbrt
cbrtf
copysign
cosf
erf
exp2
exp2f
expf
hypot
isfinite
isinf
isnan
ldexpf
llrint
llrintf
log2
log2f
log10f
lrint
lrintf
powf
rint
round
roundf
sinf
trunc
truncf
"
SYSTEM_FUNCS="
access
aligned_malloc
arc4random
clock_gettime
closesocket
CommandLineToArgvW
CoTaskMemFree
CryptGenRandom
dlopen
fcntl
flt_lim
fork
getaddrinfo
gethrtime
getopt
GetProcessAffinityMask
GetProcessMemoryInfo
GetProcessTimes
getrusage
GetSystemTimeAsFileTime
gettimeofday
glob
glXGetProcAddress
gmtime_r
inet_aton
isatty
jack_port_get_latency_range
kbhit
LoadLibrary
localtime_r
lstat
lzo1x_999_compress
mach_absolute_time
MapViewOfFile
memalign
mkstemp
mmap
mprotect
nanosleep
PeekNamedPipe
posix_memalign
pthread_cancel
sched_getaffinity
SetConsoleTextAttribute
SetConsoleCtrlHandler
setmode
setrlimit
Sleep
strerror_r
sysconf
sysctl
usleep
UTGetOSTypeFromString
VirtualAlloc
wglGetProcAddress
"
TOOLCHAIN_FEATURES="
as_dn_directive
as_fpu_directive
as_func
as_object_arch
asm_mod_q
attribute_may_alias
attribute_packed
blocks_extension
ebp_available
ebx_available
gnu_as
gnu_windres
ibm_asm
inline_asm_direct_symbol_refs
inline_asm_labels
inline_asm_nonlocal_labels
pragma_deprecated
rsync_contimeout
symver_asm_label
symver_gnu_asm
vfp_args
xform_asm
xmm_clobbers
"
TYPES_LIST="
CONDITION_VARIABLE_Ptr
socklen_t
struct_addrinfo
struct_group_source_req
struct_ip_mreq_source
struct_ipv6_mreq
struct_msghdr_msg_flags
struct_pollfd
struct_rusage_ru_maxrss
struct_sctp_event_subscribe
struct_sockaddr_in6
struct_sockaddr_sa_len
struct_sockaddr_storage
struct_stat_st_mtim_tv_nsec
struct_v4l2_frmivalenum_discrete
"
HAVE_LIST="
$ARCH_EXT_LIST
$(add_suffix _external $ARCH_EXT_LIST)
$(add_suffix _inline $ARCH_EXT_LIST)
$ARCH_FEATURES
$ATOMICS_LIST
$BUILTIN_LIST
$COMPLEX_FUNCS
$HAVE_LIST_CMDLINE
$HAVE_LIST_PUB
$HEADERS_LIST
$INTRINSICS_LIST
$MATH_FUNCS
$SYSTEM_FUNCS
$THREADS_LIST
$TOOLCHAIN_FEATURES
$TYPES_LIST
alsa
atomics_native
dos_paths
jack
libc_msvcrt
makeinfo
makeinfo_html
MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
perl
pod2man
sdl2
section_data_rel_ro
sndio
texi2html
threads
uwp
vaapi_drm
vaapi_x11
vdpau_x11
winrt
"
# options emitted with CONFIG_ prefix but not available on the command line
CONFIG_EXTRA="
aandcttables
ac3dsp
audio_frame_queue
audiodsp
blockdsp
bswapdsp
cabac
dirac_parse
dvprofile
exif
faandct
faanidct
fdctdsp
flacdsp
fmtconvert
frame_thread_encoder
g722dsp
golomb
gplv3
h263dsp
h264chroma
h264dsp
h264parse
h264pred
h264qpel
hevcparse
hpeldsp
huffman
huffyuvdsp
huffyuvencdsp
idctdsp
iirfilter
mdct15
intrax8
iso_media
ividsp
jpegtables
lgplv3
libx262
llauddsp
llviddsp
llvidencdsp
lpc
lzf
me_cmp
mpeg_er
mpegaudio
mpegaudiodsp
mpegaudioheader
mpegvideo
mpegvideoenc
mss34dsp
pixblockdsp
qpeldsp
qsv
qsvdec
qsvenc
rangecoder
riffdec
riffenc
rtpdec
rtpenc_chain
rv34dsp
sinewin
snappy
srtp
startcode
texturedsp
texturedspenc
tpeldsp
vaapi_encode
vc1dsp
videodsp
vp3dsp
vp56dsp
vp8dsp
vt_bt2020
wma_freqs
wmv2dsp
"
CMDLINE_SELECT="
$ARCH_EXT_LIST
$CONFIG_LIST
$HAVE_LIST_CMDLINE
$THREADS_LIST
asm
cross_compile
debug
extra_warnings
logging
lto
optimizations
rpath
stripping
"
PATHS_LIST="
bindir
datadir
docdir
incdir
libdir
mandir
pkgconfigdir
prefix
shlibdir
install_name_dir
"
CMDLINE_SET="
$PATHS_LIST
ar
arch
as
assert_level
build_suffix
cc
objcc
cpu
cross_prefix
custom_allocator
cxx
dep_cc
doxygen
env
extra_version
gas
host_cc
host_cflags
host_extralibs
host_ld
host_ldflags
host_os
ignore_tests
install
ld
ln_s
logfile
malloc_prefix
nm
optflags
nvccflags
pkg_config
pkg_config_flags
progs_suffix
random_seed
ranlib
samples
strip
sws_max_filter_size
sysinclude
sysroot
target_exec
target_os
target_path
target_samples
tempprefix
toolchain
valgrind
x86asmexe
"
CMDLINE_APPEND="
extra_cflags
extra_cxxflags
extra_objcflags
host_cppflags
"
# code dependency declarations
# architecture extensions
armv5te_deps="arm"
armv6_deps="arm"
armv6t2_deps="arm"
armv8_deps="aarch64"
neon_deps_any="aarch64 arm"
intrinsics_neon_deps="neon"
vfp_deps_any="aarch64 arm"
vfpv3_deps="vfp"
setend_deps="arm"
map 'eval ${v}_inline_deps=inline_asm' $ARCH_EXT_LIST_ARM
loongson2_deps="mips"
loongson3_deps="mips"
mipsfpu_deps="mips"
mipsdsp_deps="mips"
mipsdspr2_deps="mips"
mips32r2_deps="mips"
mips32r5_deps="mips"
mips32r6_deps="mips"
mips64r2_deps="mips"
mips64r6_deps="mips"
msa_deps="mipsfpu"
mmi_deps="mips"
altivec_deps="ppc"
dcbzl_deps="ppc"
ldbrx_deps="ppc"
ppc4xx_deps="ppc"
vsx_deps="altivec"
power8_deps="vsx"
cpunop_deps="i686"
x86_64_select="i686"
x86_64_suggest="fast_cmov"
amd3dnow_deps="mmx"
amd3dnowext_deps="amd3dnow"
i686_deps="x86"
mmx_deps="x86"
mmxext_deps="mmx"
sse_deps="mmxext"
sse2_deps="sse"
sse3_deps="sse2"
ssse3_deps="sse3"
sse4_deps="ssse3"
sse42_deps="sse4"
aesni_deps="sse42"
avx_deps="sse42"
xop_deps="avx"
fma3_deps="avx"
fma4_deps="avx"
avx2_deps="avx"
mmx_external_deps="x86asm"
mmx_inline_deps="inline_asm"
mmx_suggest="mmx_external mmx_inline"
for ext in $(filter_out mmx $ARCH_EXT_LIST_X86_SIMD); do
eval dep=\$${ext}_deps
eval ${ext}_external_deps='"${dep}_external"'
eval ${ext}_inline_deps='"${dep}_inline"'
eval ${ext}_suggest='"${ext}_external ${ext}_inline"'
done
aligned_stack_if_any="aarch64 ppc x86"
fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
fast_unaligned_if_any="aarch64 ppc x86"
simd_align_16_if_any="altivec neon sse"
simd_align_32_if_any="avx"
# system capabilities
symver_if_any="symver_asm_label symver_gnu_asm"
valgrind_backtrace_deps="!optimizations valgrind_valgrind_h"
# threading support
atomics_gcc_if="sync_val_compare_and_swap"
atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
atomics_win32_if="MemoryBarrier"
atomics_native_if_any="$ATOMICS_LIST"
w32threads_deps="atomics_native"
threads_if_any="$THREADS_LIST"
# subsystems
dct_select="rdft"
dirac_parse_select="golomb"
error_resilience_select="me_cmp"
faandct_deps="faan fdctdsp"
faanidct_deps="faan idctdsp"
h264dsp_select="startcode"
hevcparse_select="golomb"
frame_thread_encoder_deps="encoders threads"
intrax8_select="blockdsp idctdsp"
mdct_select="fft"
mdct15_select="fft"
me_cmp_select="fdctdsp idctdsp pixblockdsp"
mpeg_er_select="error_resilience"
mpegaudio_select="mpegaudiodsp mpegaudioheader"
mpegaudiodsp_select="dct"
mpegvideo_select="blockdsp h264chroma hpeldsp idctdsp me_cmp mpeg_er videodsp"
mpegvideoenc_select="me_cmp mpegvideo pixblockdsp qpeldsp"
vc1dsp_select="h264chroma qpeldsp startcode"
rdft_select="fft"
# decoders / encoders
aac_decoder_select="mdct15 mdct sinewin"
aac_fixed_decoder_select="mdct sinewin"
aac_encoder_select="audio_frame_queue iirfilter lpc mdct sinewin"
aac_latm_decoder_select="aac_decoder aac_latm_parser"
ac3_decoder_select="ac3_parser ac3dsp bswapdsp fmtconvert mdct"
ac3_fixed_decoder_select="ac3_parser ac3dsp bswapdsp mdct"
ac3_encoder_select="ac3dsp audiodsp mdct me_cmp"
ac3_fixed_encoder_select="ac3dsp audiodsp mdct me_cmp"
adpcm_g722_decoder_select="g722dsp"
adpcm_g722_encoder_select="g722dsp"
aic_decoder_select="golomb idctdsp"
alac_encoder_select="lpc"
als_decoder_select="bswapdsp"
amrnb_decoder_select="lsp"
amrwb_decoder_select="lsp"
amv_decoder_select="sp5x_decoder exif"
amv_encoder_select="aandcttables jpegtables mpegvideoenc"
ape_decoder_select="bswapdsp llauddsp"
apng_decoder_select="zlib"
apng_encoder_select="llvidencdsp zlib"
asv1_decoder_select="blockdsp bswapdsp idctdsp"
asv1_encoder_select="bswapdsp fdctdsp pixblockdsp"
asv2_decoder_select="blockdsp bswapdsp idctdsp"
asv2_encoder_select="bswapdsp fdctdsp pixblockdsp"
atrac1_decoder_select="mdct sinewin"
atrac3_decoder_select="mdct"
atrac3p_decoder_select="mdct sinewin"
avrn_decoder_select="exif jpegtables"
bink_decoder_select="blockdsp hpeldsp"
binkaudio_dct_decoder_select="mdct rdft dct sinewin wma_freqs"
binkaudio_rdft_decoder_select="mdct rdft sinewin wma_freqs"
cavs_decoder_select="blockdsp golomb h264chroma idctdsp qpeldsp videodsp"
clearvideo_decoder_select="idctdsp"
cllc_decoder_select="bswapdsp"
comfortnoise_encoder_select="lpc"
cook_decoder_select="audiodsp mdct sinewin"
cscd_decoder_select="lzo"
cscd_decoder_suggest="zlib"
dca_decoder_select="mdct"
dds_decoder_select="texturedsp"
dirac_decoder_select="dirac_parse dwt golomb videodsp mpegvideoenc"
dnxhd_decoder_select="blockdsp idctdsp"
dnxhd_encoder_select="aandcttables blockdsp fdctdsp idctdsp mpegvideoenc pixblockdsp"
dolby_e_decoder_select="mdct"
dvvideo_decoder_select="dvprofile idctdsp"
dvvideo_encoder_select="dvprofile fdctdsp me_cmp pixblockdsp"
dxa_decoder_select="zlib"
dxv_decoder_select="lzf texturedsp"
eac3_decoder_select="ac3_decoder"
eac3_encoder_select="ac3_encoder"
eamad_decoder_select="aandcttables blockdsp bswapdsp idctdsp mpegvideo"
eatgq_decoder_select="aandcttables"
eatqi_decoder_select="aandcttables blockdsp bswapdsp idctdsp"
exr_decoder_select="zlib"
ffv1_decoder_select="rangecoder"
ffv1_encoder_select="rangecoder"
ffvhuff_decoder_select="huffyuv_decoder"
ffvhuff_encoder_select="huffyuv_encoder"
fic_decoder_select="golomb"
flac_decoder_select="flacdsp"
flac_encoder_select="bswapdsp flacdsp lpc"
flashsv2_decoder_select="zlib"
flashsv2_encoder_select="zlib"
flashsv_decoder_select="zlib"
flashsv_encoder_select="zlib"
flv_decoder_select="h263_decoder"
flv_encoder_select="h263_encoder"
fourxm_decoder_select="blockdsp bswapdsp"
fraps_decoder_select="bswapdsp huffman"
g2m_decoder_select="blockdsp idctdsp jpegtables zlib"
g729_decoder_select="audiodsp"
h261_decoder_select="mpegvideo"
h261_encoder_select="aandcttables mpegvideoenc"
h263_decoder_select="h263_parser h263dsp mpegvideo qpeldsp"
h263_encoder_select="aandcttables h263dsp mpegvideoenc"
h263i_decoder_select="h263_decoder"
h263p_decoder_select="h263_decoder"
h263p_encoder_select="h263_encoder"
h264_decoder_select="cabac golomb h264chroma h264dsp h264parse h264pred h264qpel videodsp"
h264_decoder_suggest="error_resilience"
hap_decoder_select="snappy texturedsp"
hap_encoder_deps="libsnappy"
hap_encoder_select="texturedspenc"
hevc_decoder_select="bswapdsp cabac golomb hevcparse videodsp"
huffyuv_decoder_select="bswapdsp huffyuvdsp llviddsp"
huffyuv_encoder_select="bswapdsp huffman huffyuvencdsp llvidencdsp"
iac_decoder_select="imc_decoder"
imc_decoder_select="bswapdsp fft mdct sinewin"
indeo3_decoder_select="hpeldsp"
indeo4_decoder_select="ividsp"
indeo5_decoder_select="ividsp"
interplay_video_decoder_select="hpeldsp"
jpegls_decoder_select="mjpeg_decoder"
jv_decoder_select="blockdsp"
lagarith_decoder_select="llviddsp"
ljpeg_encoder_select="aandcttables idctdsp jpegtables mpegvideoenc"
magicyuv_decoder_select="llviddsp"
mdec_decoder_select="blockdsp idctdsp mpegvideo"
metasound_decoder_select="lsp mdct sinewin"
mimic_decoder_select="blockdsp bswapdsp hpeldsp idctdsp"
mjpeg_decoder_select="blockdsp hpeldsp exif idctdsp jpegtables"
mjpeg_encoder_select="aandcttables jpegtables mpegvideoenc"
mjpegb_decoder_select="mjpeg_decoder"
mlp_decoder_select="mlp_parser"
mlp_encoder_select="lpc"
motionpixels_decoder_select="bswapdsp"
mp1_decoder_select="mpegaudio"
mp1float_decoder_select="mpegaudio"
mp2_decoder_select="mpegaudio"
mp2float_decoder_select="mpegaudio"
mp3_decoder_select="mpegaudio"
mp3adu_decoder_select="mpegaudio"
mp3adufloat_decoder_select="mpegaudio"
mp3float_decoder_select="mpegaudio"
mp3on4_decoder_select="mpegaudio"
mp3on4float_decoder_select="mpegaudio"
mpc7_decoder_select="bswapdsp mpegaudiodsp"
mpc8_decoder_select="mpegaudiodsp"
mpeg_xvmc_decoder_deps="X11_extensions_XvMClib_h"
mpeg_xvmc_decoder_select="mpeg2video_decoder"
mpegvideo_decoder_select="mpegvideo"
mpeg1video_decoder_select="mpegvideo"
mpeg1video_encoder_select="aandcttables mpegvideoenc h263dsp"
mpeg2video_decoder_select="mpegvideo"
mpeg2video_encoder_select="aandcttables mpegvideoenc h263dsp"
mpeg4_decoder_select="h263_decoder mpeg4video_parser"
mpeg4_encoder_select="h263_encoder"
msa1_decoder_select="mss34dsp"
mscc_decoder_select="zlib"
msmpeg4v1_decoder_select="h263_decoder"
msmpeg4v2_decoder_select="h263_decoder"
msmpeg4v2_encoder_select="h263_encoder"
msmpeg4v3_decoder_select="h263_decoder"
msmpeg4v3_encoder_select="h263_encoder"
mss2_decoder_select="mpegvideo qpeldsp vc1_decoder"
mts2_decoder_select="mss34dsp"
mxpeg_decoder_select="mjpeg_decoder"
nellymoser_decoder_select="mdct sinewin"
nellymoser_encoder_select="audio_frame_queue mdct sinewin"
nuv_decoder_select="idctdsp lzo"
on2avc_decoder_select="mdct"
opus_decoder_deps="swresample"
opus_decoder_select="mdct15"
opus_encoder_select="audio_frame_queue mdct15"
png_decoder_select="zlib"
png_encoder_select="llvidencdsp zlib"
prores_decoder_select="blockdsp idctdsp"
prores_encoder_select="fdctdsp"
qcelp_decoder_select="lsp"
qdm2_decoder_select="mdct rdft mpegaudiodsp"
ra_144_decoder_select="audiodsp"
ra_144_encoder_select="audio_frame_queue lpc audiodsp"
ralf_decoder_select="golomb"
rawvideo_decoder_select="bswapdsp"
rscc_decoder_select="zlib"
rtjpeg_decoder_select="me_cmp"
rv10_decoder_select="h263_decoder"
rv10_encoder_select="h263_encoder"
rv20_decoder_select="h263_decoder"
rv20_encoder_select="h263_encoder"
rv30_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
rv40_decoder_select="golomb h264pred h264qpel mpegvideo rv34dsp"
screenpresso_decoder_select="zlib"
shorten_decoder_select="bswapdsp"
sipr_decoder_select="lsp"
snow_decoder_select="dwt h264qpel hpeldsp me_cmp rangecoder videodsp"
snow_encoder_select="aandcttables dwt h264qpel hpeldsp me_cmp mpegvideoenc rangecoder"
sonic_decoder_select="golomb rangecoder"
sonic_encoder_select="golomb rangecoder"
sonic_ls_encoder_select="golomb rangecoder"
sp5x_decoder_select="mjpeg_decoder"
srgc_decoder_select="zlib"
svq1_decoder_select="hpeldsp"
svq1_encoder_select="aandcttables hpeldsp me_cmp mpegvideoenc"
svq3_decoder_select="golomb h264dsp h264parse h264pred hpeldsp tpeldsp videodsp"
svq3_decoder_suggest="zlib"
tak_decoder_select="audiodsp"
tdsc_decoder_select="zlib mjpeg_decoder"
theora_decoder_select="vp3_decoder"
thp_decoder_select="mjpeg_decoder"
tiff_decoder_suggest="zlib lzma"
tiff_encoder_suggest="zlib"
truehd_decoder_select="mlp_parser"
truehd_encoder_select="lpc"
truemotion2_decoder_select="bswapdsp"
truespeech_decoder_select="bswapdsp"
tscc_decoder_select="zlib"
twinvq_decoder_select="mdct lsp sinewin"
txd_decoder_select="texturedsp"
utvideo_decoder_select="bswapdsp llviddsp"
utvideo_encoder_select="bswapdsp huffman llvidencdsp"
vble_decoder_select="llviddsp"
vc1_decoder_select="blockdsp h263_decoder h264qpel intrax8 mpegvideo vc1dsp"
vc1_qsv_decoder_deps="libmfx"
vc1_qsv_decoder_select="qsvdec vc1_qsv_hwaccel vc1_parser"
vc1image_decoder_select="vc1_decoder"
vorbis_decoder_select="mdct"
vorbis_encoder_select="mdct"
vp3_decoder_select="hpeldsp vp3dsp videodsp"
vp5_decoder_select="h264chroma hpeldsp videodsp vp3dsp vp56dsp"
vp6_decoder_select="h264chroma hpeldsp huffman videodsp vp3dsp vp56dsp"
vp6a_decoder_select="vp6_decoder"
vp6f_decoder_select="vp6_decoder"
vp7_decoder_select="h264pred videodsp vp8dsp"
vp8_decoder_select="h264pred videodsp vp8dsp"
vp9_decoder_select="videodsp vp9_parser"
webp_decoder_select="vp8_decoder exif"
wmalossless_decoder_select="llauddsp"
wmapro_decoder_select="mdct sinewin wma_freqs"
wmav1_decoder_select="mdct sinewin wma_freqs"
wmav1_encoder_select="mdct sinewin wma_freqs"
wmav2_decoder_select="mdct sinewin wma_freqs"
wmav2_encoder_select="mdct sinewin wma_freqs"
wmavoice_decoder_select="lsp rdft dct mdct sinewin"
wmv1_decoder_select="h263_decoder"
wmv1_encoder_select="h263_encoder"
wmv2_decoder_select="blockdsp error_resilience h263_decoder idctdsp intrax8 videodsp wmv2dsp"
wmv2_encoder_select="h263_encoder wmv2dsp"
wmv3_decoder_select="vc1_decoder"
wmv3image_decoder_select="wmv3_decoder"
xma1_decoder_select="wmapro_decoder"
xma2_decoder_select="wmapro_decoder"
zerocodec_decoder_select="zlib"
zlib_decoder_select="zlib"
zlib_encoder_select="zlib"
zmbv_decoder_select="zlib"
zmbv_encoder_select="zlib"
# platform codecs
audiotoolbox_deps="AudioToolbox_AudioToolbox_h"
audiotoolbox_extralibs="-framework CoreFoundation -framework AudioToolbox -framework CoreMedia"
# hardware accelerators
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
cuda_deps_any="dlopen LoadLibrary"
cuvid_deps="cuda"
d3d11va_deps="d3d11_h dxva_h ID3D11VideoDecoder ID3D11VideoContext"
dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32"
dxva2_extralibs="-luser32"
vda_framework_deps="VideoDecodeAcceleration_VDADecoder_h blocks_extension"
vda_framework_extralibs="-framework VideoDecodeAcceleration"
vda_deps="vda_framework pthreads"
vda_extralibs="-framework CoreFoundation -framework QuartzCore"
videotoolbox_hwaccel_deps="videotoolbox pthreads"
videotoolbox_hwaccel_extralibs="-framework QuartzCore"
xvmc_deps="X11_extensions_XvMClib_h"
h263_vaapi_hwaccel_deps="vaapi"
h263_vaapi_hwaccel_select="h263_decoder"
h263_videotoolbox_hwaccel_deps="videotoolbox"
h263_videotoolbox_hwaccel_select="h263_decoder"
h264_cuvid_hwaccel_deps="cuda cuvid"
h264_cuvid_hwaccel_select="h264_cuvid_decoder"
h264_d3d11va_hwaccel_deps="d3d11va"
h264_d3d11va_hwaccel_select="h264_decoder"
h264_d3d11va2_hwaccel_deps="d3d11va"
h264_d3d11va2_hwaccel_select="h264_decoder"
h264_dxva2_hwaccel_deps="dxva2"
h264_dxva2_hwaccel_select="h264_decoder"
h264_mediacodec_hwaccel_deps="mediacodec"
h264_mmal_hwaccel_deps="mmal"
h264_qsv_hwaccel_deps="libmfx"
h264_vaapi_hwaccel_deps="vaapi"
h264_vaapi_hwaccel_select="h264_decoder"
h264_vda_hwaccel_deps="vda"
h264_vda_hwaccel_select="h264_decoder"
h264_vda_old_hwaccel_deps="vda"
h264_vda_old_hwaccel_select="h264_decoder"
h264_vdpau_hwaccel_deps="vdpau"
h264_vdpau_hwaccel_select="h264_decoder"
h264_videotoolbox_hwaccel_deps="videotoolbox"
h264_videotoolbox_hwaccel_select="h264_decoder"
hevc_cuvid_hwaccel_deps="cuda cuvid"
hevc_cuvid_hwaccel_select="hevc_cuvid_decoder"
hevc_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
hevc_d3d11va_hwaccel_select="hevc_decoder"
hevc_mediacodec_hwaccel_deps="mediacodec"
hevc_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
hevc_d3d11va2_hwaccel_select="hevc_decoder"
hevc_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_HEVC"
hevc_dxva2_hwaccel_select="hevc_decoder"
hevc_qsv_hwaccel_deps="libmfx"
hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
hevc_vaapi_hwaccel_select="hevc_decoder"
hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
hevc_vdpau_hwaccel_select="hevc_decoder"
mjpeg_cuvid_hwaccel_deps="cuda cuvid"
mjpeg_cuvid_hwaccel_select="mjpeg_cuvid_decoder"
mpeg_xvmc_hwaccel_deps="xvmc"
mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
mpeg1_cuvid_hwaccel_deps="cuda cuvid"
mpeg1_cuvid_hwaccel_select="mpeg1_cuvid_decoder"
mpeg1_vdpau_hwaccel_deps="vdpau"
mpeg1_vdpau_hwaccel_select="mpeg1video_decoder"
mpeg1_videotoolbox_hwaccel_deps="videotoolbox"
mpeg1_videotoolbox_hwaccel_select="mpeg1video_decoder"
mpeg1_xvmc_hwaccel_deps="xvmc"
mpeg1_xvmc_hwaccel_select="mpeg1video_decoder"
mpeg2_cuvid_hwaccel_deps="cuda cuvid"
mpeg2_cuvid_hwaccel_select="mpeg2_cuvid_decoder"
mpeg2_d3d11va_hwaccel_deps="d3d11va"
mpeg2_d3d11va_hwaccel_select="mpeg2video_decoder"
mpeg2_d3d11va2_hwaccel_deps="d3d11va"
mpeg2_d3d11va2_hwaccel_select="mpeg2video_decoder"
mpeg2_dxva2_hwaccel_deps="dxva2"
mpeg2_dxva2_hwaccel_select="mpeg2video_decoder"
mpeg2_mediacodec_hwaccel_deps="mediacodec"
mpeg2_mmal_hwaccel_deps="mmal"
mpeg2_qsv_hwaccel_deps="libmfx"
mpeg2_qsv_hwaccel_select="qsvdec_mpeg2"
mpeg2_vaapi_hwaccel_deps="vaapi"
mpeg2_vaapi_hwaccel_select="mpeg2video_decoder"
mpeg2_vdpau_hwaccel_deps="vdpau"
mpeg2_vdpau_hwaccel_select="mpeg2video_decoder"
mpeg2_videotoolbox_hwaccel_deps="videotoolbox"
mpeg2_videotoolbox_hwaccel_select="mpeg2video_decoder"
mpeg2_xvmc_hwaccel_deps="xvmc"
mpeg2_xvmc_hwaccel_select="mpeg2video_decoder"
mpeg4_cuvid_hwaccel_deps="cuda cuvid"
mpeg4_cuvid_hwaccel_select="mpeg4_cuvid_decoder"
mpeg4_mediacodec_hwaccel_deps="mediacodec"
mpeg4_mmal_hwaccel_deps="mmal"
mpeg4_vaapi_hwaccel_deps="vaapi"
mpeg4_vaapi_hwaccel_select="mpeg4_decoder"
mpeg4_vdpau_hwaccel_deps="vdpau"
mpeg4_vdpau_hwaccel_select="mpeg4_decoder"
mpeg4_videotoolbox_hwaccel_deps="videotoolbox"
mpeg4_videotoolbox_hwaccel_select="mpeg4_decoder"
vc1_cuvid_hwaccel_deps="cuda cuvid"
vc1_cuvid_hwaccel_select="vc1_cuvid_decoder"
vc1_d3d11va_hwaccel_deps="d3d11va"
vc1_d3d11va_hwaccel_select="vc1_decoder"
vc1_d3d11va2_hwaccel_deps="d3d11va"
vc1_d3d11va2_hwaccel_select="vc1_decoder"
vc1_dxva2_hwaccel_deps="dxva2"
vc1_dxva2_hwaccel_select="vc1_decoder"
vc1_mmal_hwaccel_deps="mmal"
vc1_qsv_hwaccel_deps="libmfx"
vc1_qsv_hwaccel_select="qsvdec_vc1"
vc1_vaapi_hwaccel_deps="vaapi"
vc1_vaapi_hwaccel_select="vc1_decoder"
vc1_vdpau_hwaccel_deps="vdpau"
vc1_vdpau_hwaccel_select="vc1_decoder"
vp8_cuvid_hwaccel_deps="cuda cuvid"
vp8_cuvid_hwaccel_select="vp8_cuvid_decoder"
vp9_cuvid_hwaccel_deps="cuda cuvid"
vp9_cuvid_hwaccel_select="vp9_cuvid_decoder"
vp8_mediacodec_hwaccel_deps="mediacodec"
vp8_qsv_hwaccel_deps="libmfx"
vp9_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
vp9_d3d11va_hwaccel_select="vp9_decoder"
vp9_d3d11va2_hwaccel_deps="d3d11va DXVA_PicParams_VP9"
vp9_d3d11va2_hwaccel_select="vp9_decoder"
vp9_dxva2_hwaccel_deps="dxva2 DXVA_PicParams_VP9"
vp9_dxva2_hwaccel_select="vp9_decoder"
vp9_mediacodec_hwaccel_deps="mediacodec"
vp9_vaapi_hwaccel_deps="vaapi VADecPictureParameterBufferVP9_bit_depth"
vp9_vaapi_hwaccel_select="vp9_decoder"
wmv3_d3d11va_hwaccel_select="vc1_d3d11va_hwaccel"
wmv3_d3d11va2_hwaccel_select="vc1_d3d11va2_hwaccel"
wmv3_dxva2_hwaccel_select="vc1_dxva2_hwaccel"
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
# hardware-accelerated codecs
omx_deps="dlopen pthreads"
omx_extralibs='$ldl'
omx_rpi_select="omx"
qsvdec_select="qsv"
qsvenc_select="qsv"
vaapi_encode_deps="vaapi"
hwupload_cuda_filter_deps="cuda"
scale_npp_filter_deps="cuda libnpp"
scale_cuda_filter_deps="cuda_sdk"
nvenc_deps="cuda"
nvenc_deps_any="dlopen LoadLibrary"
nvenc_encoder_deps="nvenc"
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
h264_cuvid_decoder_deps="cuda cuvid"
h264_cuvid_decoder_select="h264_mp4toannexb_bsf"
h264_mediacodec_decoder_deps="mediacodec"
h264_mediacodec_decoder_select="h264_mp4toannexb_bsf h264_parser"
h264_mmal_decoder_deps="mmal"
h264_nvenc_encoder_deps="nvenc"
h264_omx_encoder_deps="omx"
h264_qsv_decoder_deps="libmfx"
h264_qsv_decoder_select="h264_mp4toannexb_bsf h264_parser qsvdec h264_qsv_hwaccel"
h264_qsv_encoder_deps="libmfx"
h264_qsv_encoder_select="qsvenc"
h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
h264_vaapi_encoder_select="vaapi_encode golomb"
h264_vda_decoder_deps="vda"
h264_vda_decoder_select="h264_decoder"
h264_vdpau_decoder_deps="vdpau"
h264_vdpau_decoder_select="h264_decoder"
hevc_cuvid_decoder_deps="cuda cuvid"
hevc_cuvid_decoder_select="hevc_mp4toannexb_bsf"
hevc_mediacodec_decoder_deps="mediacodec"
hevc_mediacodec_decoder_select="hevc_mp4toannexb_bsf hevc_parser"
hevc_nvenc_encoder_deps="nvenc"
hevc_qsv_decoder_deps="libmfx"
hevc_qsv_decoder_select="hevc_mp4toannexb_bsf hevc_parser qsvdec hevc_qsv_hwaccel"
hevc_qsv_encoder_deps="libmfx"
hevc_qsv_encoder_select="hevcparse qsvenc"
hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
hevc_vaapi_encoder_select="vaapi_encode golomb"
mjpeg_cuvid_decoder_deps="cuda cuvid"
mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
mpeg1_cuvid_decoder_deps="cuda cuvid"
mpeg1_vdpau_decoder_deps="vdpau"
mpeg1_vdpau_decoder_select="mpeg1video_decoder"
mpeg2_crystalhd_decoder_select="crystalhd"
mpeg2_cuvid_decoder_deps="cuda cuvid"
mpeg2_mmal_decoder_deps="mmal"
mpeg2_mediacodec_decoder_deps="mediacodec"
mpeg2_qsv_decoder_deps="libmfx"
mpeg2_qsv_decoder_select="qsvdec mpeg2_qsv_hwaccel"
mpeg2_qsv_encoder_deps="libmfx"
mpeg2_qsv_encoder_select="qsvenc"
mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
mpeg2_vaapi_encoder_select="vaapi_encode"
mpeg4_crystalhd_decoder_select="crystalhd"
mpeg4_cuvid_decoder_deps="cuda cuvid"
mpeg4_mediacodec_decoder_deps="mediacodec"
mpeg4_mmal_decoder_deps="mmal"
mpeg4_omx_encoder_deps="omx"
mpeg4_vdpau_decoder_deps="vdpau"
mpeg4_vdpau_decoder_select="mpeg4_decoder"
mpeg_vdpau_decoder_deps="vdpau"
mpeg_vdpau_decoder_select="mpeg2video_decoder"
msmpeg4_crystalhd_decoder_select="crystalhd"
nvenc_h264_encoder_select="h264_nvenc_encoder"
nvenc_hevc_encoder_select="hevc_nvenc_encoder"
vc1_crystalhd_decoder_select="crystalhd"
vc1_cuvid_decoder_deps="cuda cuvid"
vc1_mmal_decoder_deps="mmal"
vc1_vdpau_decoder_deps="vdpau"
vc1_vdpau_decoder_select="vc1_decoder"
vp8_cuvid_decoder_deps="cuda cuvid"
vp8_mediacodec_decoder_deps="mediacodec"
vp8_qsv_decoder_deps="libmfx"
vp8_qsv_decoder_select="qsvdec vp8_qsv_hwaccel vp8_parser"
vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
vp8_vaapi_encoder_select="vaapi_encode"
vp9_cuvid_decoder_deps="cuda cuvid"
vp9_mediacodec_decoder_deps="mediacodec"
vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
vp9_vaapi_encoder_select="vaapi_encode"
wmv3_crystalhd_decoder_select="crystalhd"
wmv3_vdpau_decoder_select="vc1_vdpau_decoder"
# parsers
h264_parser_select="golomb h264dsp h264parse"
hevc_parser_select="hevcparse"
mpegaudio_parser_select="mpegaudioheader"
mpegvideo_parser_select="mpegvideo"
mpeg4video_parser_select="h263dsp mpegvideo qpeldsp"
vc1_parser_select="vc1dsp"
# bitstream_filters
mjpeg2jpeg_bsf_select="jpegtables"
# external libraries
aac_at_decoder_deps="audiotoolbox"
ac3_at_decoder_deps="audiotoolbox"
ac3_at_decoder_select="ac3_parser"
adpcm_ima_qt_at_decoder_deps="audiotoolbox"
alac_at_decoder_deps="audiotoolbox"
amr_nb_at_decoder_deps="audiotoolbox"
avisynth_deps_any="dlopen LoadLibrary"
avisynth_demuxer_deps="avisynth"
avisynth_demuxer_select="riffdec"
eac3_at_decoder_deps="audiotoolbox"
eac3_at_decoder_select="ac3_parser"
gsm_ms_at_decoder_deps="audiotoolbox"
ilbc_at_decoder_deps="audiotoolbox"
mp1_at_decoder_deps="audiotoolbox"
mp2_at_decoder_deps="audiotoolbox"
mp3_at_decoder_deps="audiotoolbox"
mp1_at_decoder_select="mpegaudioheader"
mp2_at_decoder_select="mpegaudioheader"
mp3_at_decoder_select="mpegaudioheader"
pcm_alaw_at_decoder_deps="audiotoolbox"
pcm_mulaw_at_decoder_deps="audiotoolbox"
qdmc_at_decoder_deps="audiotoolbox"
qdm2_at_decoder_deps="audiotoolbox"
aac_at_encoder_deps="audiotoolbox"
aac_at_encoder_select="audio_frame_queue"
alac_at_encoder_deps="audiotoolbox"
alac_at_encoder_select="audio_frame_queue"
ilbc_at_encoder_deps="audiotoolbox"
ilbc_at_encoder_select="audio_frame_queue"
pcm_alaw_at_encoder_deps="audiotoolbox"
pcm_alaw_at_encoder_select="audio_frame_queue"
pcm_mulaw_at_encoder_deps="audiotoolbox"
pcm_mulaw_at_encoder_select="audio_frame_queue"
chromaprint_muxer_deps="chromaprint"
h264_videotoolbox_encoder_deps="videotoolbox_encoder pthreads"
libcelt_decoder_deps="libcelt"
libfdk_aac_decoder_deps="libfdk_aac"
libfdk_aac_encoder_deps="libfdk_aac"
libfdk_aac_encoder_select="audio_frame_queue"
libgme_demuxer_deps="libgme"
libgsm_decoder_deps="libgsm"
libgsm_encoder_deps="libgsm"
libgsm_ms_decoder_deps="libgsm"
libgsm_ms_encoder_deps="libgsm"
libilbc_decoder_deps="libilbc"
libilbc_encoder_deps="libilbc"
libkvazaar_encoder_deps="libkvazaar"
libmodplug_demuxer_deps="libmodplug"
libmp3lame_encoder_deps="libmp3lame"
libmp3lame_encoder_select="audio_frame_queue mpegaudioheader"
libopencore_amrnb_decoder_deps="libopencore_amrnb"
libopencore_amrnb_encoder_deps="libopencore_amrnb"
libopencore_amrnb_encoder_select="audio_frame_queue"
libopencore_amrwb_decoder_deps="libopencore_amrwb"
libopenh264_decoder_deps="libopenh264"
libopenh264_decoder_select="h264_mp4toannexb_bsf"
libopenh264_encoder_deps="libopenh264"
libopenjpeg_decoder_deps="libopenjpeg"
libopenjpeg_encoder_deps="libopenjpeg"
libopenmpt_demuxer_deps="libopenmpt"
libopus_decoder_deps="libopus"
libopus_encoder_deps="libopus"
libopus_encoder_select="audio_frame_queue"
librsvg_decoder_deps="librsvg"
libshine_encoder_deps="libshine"
libshine_encoder_select="audio_frame_queue"
libspeex_decoder_deps="libspeex"
libspeex_encoder_deps="libspeex"
libspeex_encoder_select="audio_frame_queue"
libtheora_encoder_deps="libtheora"
libtwolame_encoder_deps="libtwolame"
libvo_amrwbenc_encoder_deps="libvo_amrwbenc"
libvorbis_decoder_deps="libvorbis"
libvorbis_encoder_deps="libvorbis"
libvorbis_encoder_select="audio_frame_queue"
libvpx_vp8_decoder_deps="libvpx"
libvpx_vp8_encoder_deps="libvpx"
libvpx_vp9_decoder_deps="libvpx"
libvpx_vp9_encoder_deps="libvpx"
libwavpack_encoder_deps="libwavpack"
libwavpack_encoder_select="audio_frame_queue"
libwebp_encoder_deps="libwebp"
libwebp_anim_encoder_deps="libwebp"
libx262_encoder_deps="libx262"
libx264_encoder_deps="libx264"
libx264rgb_encoder_deps="libx264 x264_csp_bgr"
libx264rgb_encoder_select="libx264_encoder"
libx265_encoder_deps="libx265"
libxavs_encoder_deps="libxavs"
libxvid_encoder_deps="libxvid"
libzvbi_teletext_decoder_deps="libzvbi"
videotoolbox_deps="VideoToolbox_VideoToolbox_h"
videotoolbox_extralibs="-framework CoreFoundation -framework VideoToolbox -framework CoreMedia -framework CoreVideo"
videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
videotoolbox_encoder_suggest="vda_framework vt_bt2020"
vt_bt2020_deps="kCVImageBufferColorPrimaries_ITU_R_2020"
# demuxers / muxers
ac3_demuxer_select="ac3_parser"
aiff_muxer_select="iso_media"
asf_demuxer_select="riffdec"
asf_o_demuxer_select="riffdec"
asf_muxer_select="riffenc"
asf_stream_muxer_select="asf_muxer"
avi_demuxer_select="iso_media riffdec exif"
avi_muxer_select="riffenc"
caf_demuxer_select="iso_media riffdec"
caf_muxer_select="iso_media"
dash_muxer_select="mp4_muxer"
dirac_demuxer_select="dirac_parser"
dts_demuxer_select="dca_parser"
dtshd_demuxer_select="dca_parser"
dv_demuxer_select="dvprofile"
dv_muxer_select="dvprofile"
dxa_demuxer_select="riffdec"
eac3_demuxer_select="ac3_parser"
f4v_muxer_select="mov_muxer"
fifo_muxer_deps="threads"
flac_demuxer_select="flac_parser"
hds_muxer_select="flv_muxer"
hls_muxer_select="mpegts_muxer"
image2_alias_pix_demuxer_select="image2_demuxer"
image2_brender_pix_demuxer_select="image2_demuxer"
ipod_muxer_select="mov_muxer"
ismv_muxer_select="mov_muxer"
matroska_audio_muxer_select="matroska_muxer"
matroska_demuxer_select="iso_media riffdec"
matroska_demuxer_suggest="bzlib lzo zlib"
matroska_muxer_select="iso_media riffenc"
mmf_muxer_select="riffenc"
mov_demuxer_select="iso_media riffdec"
mov_demuxer_suggest="zlib"
mov_muxer_select="iso_media riffenc rtpenc_chain"
mp3_demuxer_select="mpegaudio_parser"
mp3_muxer_select="mpegaudioheader"
mp4_muxer_select="mov_muxer"
mpegts_demuxer_select="iso_media"
mpegts_muxer_select="adts_muxer latm_muxer"
mpegtsraw_demuxer_select="mpegts_demuxer"
mxf_d10_muxer_select="mxf_muxer"
mxf_opatom_muxer_select="mxf_muxer"
nut_muxer_select="riffenc"
nuv_demuxer_select="riffdec"
oga_muxer_select="ogg_muxer"
ogg_demuxer_select="dirac_parse"
ogv_muxer_select="ogg_muxer"
opus_muxer_select="ogg_muxer"
psp_muxer_select="mov_muxer"
rtp_demuxer_select="sdp_demuxer"
rtp_muxer_select="golomb"
rtpdec_select="asf_demuxer jpegtables mov_demuxer mpegts_demuxer rm_demuxer rtp_protocol srtp"
rtsp_demuxer_select="http_protocol rtpdec"
rtsp_muxer_select="rtp_muxer http_protocol rtp_protocol rtpenc_chain"
sap_demuxer_select="sdp_demuxer"
sap_muxer_select="rtp_muxer rtp_protocol rtpenc_chain"
sdp_demuxer_select="rtpdec"
smoothstreaming_muxer_select="ismv_muxer"
spdif_muxer_select="aac_parser"
spx_muxer_select="ogg_muxer"
swf_demuxer_suggest="zlib"
tak_demuxer_select="tak_parser"
tg2_muxer_select="mov_muxer"
tgp_muxer_select="mov_muxer"
vobsub_demuxer_select="mpegps_demuxer"
w64_demuxer_select="wav_demuxer"
w64_muxer_select="wav_muxer"
wav_demuxer_select="riffdec"
wav_muxer_select="riffenc"
webm_muxer_select="iso_media riffenc"
webm_dash_manifest_demuxer_select="matroska_demuxer"
wtv_demuxer_select="mpegts_demuxer riffdec"
wtv_muxer_select="mpegts_muxer riffenc"
xmv_demuxer_select="riffdec"
xwma_demuxer_select="riffdec"
# indevs / outdevs
alsa_indev_deps="alsa"
alsa_outdev_deps="alsa"
avfoundation_indev_deps="pthreads"
avfoundation_indev_extralibs="-framework Foundation -framework AVFoundation -framework CoreVideo -framework CoreMedia"
bktr_indev_deps_any="dev_bktr_ioctl_bt848_h machine_ioctl_bt848_h dev_video_bktr_ioctl_bt848_h dev_ic_bt8xx_h"
caca_outdev_deps="libcaca"
decklink_indev_deps="decklink threads"
decklink_indev_extralibs="-lstdc++"
decklink_outdev_deps="decklink threads"
decklink_outdev_extralibs="-lstdc++"
libndi_newtek_indev_deps="libndi_newtek"
libndi_newtek_indev_extralibs="-lndi"
libndi_newtek_outdev_deps="libndi_newtek"
libndi_newtek_outdev_extralibs="-lndi"
dshow_indev_deps="IBaseFilter"
dshow_indev_extralibs="-lpsapi -lole32 -lstrmiids -luuid -loleaut32 -lshlwapi"
dv1394_indev_deps="dv1394"
dv1394_indev_select="dv_demuxer"
fbdev_indev_deps="linux_fb_h"
fbdev_outdev_deps="linux_fb_h"
gdigrab_indev_deps="CreateDIBSection"
gdigrab_indev_extralibs="-lgdi32"
gdigrab_indev_select="bmp_decoder"
iec61883_indev_deps="libiec61883"
jack_indev_deps="jack"
jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
lavfi_indev_deps="avfilter"
libcdio_indev_deps="libcdio"
libdc1394_indev_deps="libdc1394"
libv4l2_indev_deps="libv4l2"
openal_indev_deps="openal"
opengl_outdev_deps="opengl"
oss_indev_deps_any="soundcard_h sys_soundcard_h"
oss_outdev_deps_any="soundcard_h sys_soundcard_h"
pulse_indev_deps="libpulse"
pulse_outdev_deps="libpulse"
qtkit_indev_extralibs="-framework QTKit -framework Foundation -framework QuartzCore"
qtkit_indev_select="qtkit"
sdl2_outdev_deps="sdl2"
sndio_indev_deps="sndio"
sndio_outdev_deps="sndio"
v4l_indev_deps="linux_videodev_h"
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
vfwcap_indev_deps="vfw32 vfwcap_defines"
xcbgrab_indev_deps="libxcb"
xv_outdev_deps="X11_extensions_Xvlib_h XvGetPortAttribute"
xv_outdev_extralibs="-lXv -lX11 -lXext"
# protocols
async_protocol_deps="threads"
bluray_protocol_deps="libbluray"
ffrtmpcrypt_protocol_deps="!librtmp_protocol"
ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
ffrtmpcrypt_protocol_select="tcp_protocol"
ffrtmphttp_protocol_deps="!librtmp_protocol"
ffrtmphttp_protocol_select="http_protocol"
ftp_protocol_select="tcp_protocol"
gopher_protocol_select="network"
http_protocol_select="tcp_protocol"
httpproxy_protocol_select="tcp_protocol"
https_protocol_select="tls_protocol"
icecast_protocol_select="http_protocol"
librtmp_protocol_deps="librtmp"
librtmpe_protocol_deps="librtmp"
librtmps_protocol_deps="librtmp"
librtmpt_protocol_deps="librtmp"
librtmpte_protocol_deps="librtmp"
libsmbclient_protocol_deps="libsmbclient gplv3"
libssh_protocol_deps="libssh"
mmsh_protocol_select="http_protocol"
mmst_protocol_select="network"
rtmp_protocol_deps="!librtmp_protocol"
rtmp_protocol_select="tcp_protocol"
rtmpe_protocol_select="ffrtmpcrypt_protocol"
rtmps_protocol_deps="!librtmp_protocol"
rtmps_protocol_select="tls_protocol"
rtmpt_protocol_select="ffrtmphttp_protocol"
rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
rtp_protocol_select="udp_protocol"
sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
sctp_protocol_select="network"
srtp_protocol_select="rtp_protocol srtp"
tcp_protocol_select="network"
tls_gnutls_protocol_deps="gnutls !tls_schannel_protocol !tls_securetransport_protocol"
tls_gnutls_protocol_select="tcp_protocol"
tls_openssl_protocol_deps="openssl !tls_schannel_protocol !tls_securetransport_protocol !tls_gnutls_protocol"
tls_openssl_protocol_select="tcp_protocol"
tls_schannel_protocol_deps="schannel"
tls_schannel_protocol_select="tcp_protocol"
tls_securetransport_protocol_deps="securetransport"
tls_securetransport_protocol_select="tcp_protocol"
tls_protocol_deps_any="tls_schannel_protocol tls_securetransport_protocol tls_gnutls_protocol tls_openssl_protocol"
udp_protocol_select="network"
udplite_protocol_select="network"
unix_protocol_deps="sys_un_h"
unix_protocol_select="network"
# filters
afftfilt_filter_deps="avcodec"
afftfilt_filter_select="fft"
afir_filter_deps="avcodec"
afir_filter_select="fft"
amovie_filter_deps="avcodec avformat"
aresample_filter_deps="swresample"
ass_filter_deps="libass"
atempo_filter_deps="avcodec"
atempo_filter_select="rdft"
azmq_filter_deps="libzmq"
blackframe_filter_deps="gpl"
boxblur_filter_deps="gpl"
bs2b_filter_deps="libbs2b"
colormatrix_filter_deps="gpl"
cover_rect_filter_deps="avcodec avformat gpl"
cropdetect_filter_deps="gpl"
deinterlace_qsv_filter_deps="libmfx"
deinterlace_vaapi_filter_deps="vaapi"
delogo_filter_deps="gpl"
deshake_filter_select="pixelutils"
drawtext_filter_deps="libfreetype"
elbg_filter_deps="avcodec"
eq_filter_deps="gpl"
fftfilt_filter_deps="avcodec"
fftfilt_filter_select="rdft"
find_rect_filter_deps="avcodec avformat gpl"
firequalizer_filter_deps="avcodec"
firequalizer_filter_select="rdft"
flite_filter_deps="libflite"
framerate_filter_select="pixelutils"
frei0r_filter_deps="frei0r dlopen"
frei0r_src_filter_deps="frei0r dlopen"
fspp_filter_deps="gpl"
geq_filter_deps="gpl"
histeq_filter_deps="gpl"
hqdn3d_filter_deps="gpl"
interlace_filter_deps="gpl"
kerndeint_filter_deps="gpl"
ladspa_filter_deps="ladspa dlopen"
mcdeint_filter_deps="avcodec gpl"
movie_filter_deps="avcodec avformat"
mpdecimate_filter_deps="gpl"
mpdecimate_filter_select="pixelutils"
mptestsrc_filter_deps="gpl"
negate_filter_deps="lut_filter"
nnedi_filter_deps="gpl"
ocr_filter_deps="libtesseract"
ocv_filter_deps="libopencv"
owdenoise_filter_deps="gpl"
pan_filter_deps="swresample"
perspective_filter_deps="gpl"
phase_filter_deps="gpl"
pp7_filter_deps="gpl"
pp_filter_deps="gpl postproc"
pullup_filter_deps="gpl"
removelogo_filter_deps="avcodec avformat swscale"
repeatfields_filter_deps="gpl"
resample_filter_deps="avresample"
rubberband_filter_deps="librubberband"
sab_filter_deps="gpl swscale"
scale2ref_filter_deps="swscale"
scale_filter_deps="swscale"
scale_qsv_filter_deps="libmfx"
select_filter_select="pixelutils"
showcqt_filter_deps="avcodec avformat swscale"
showcqt_filter_select="fft"
showfreqs_filter_deps="avcodec"
showfreqs_filter_select="fft"
showspectrum_filter_deps="avcodec"
showspectrum_filter_select="fft"
showspectrumpic_filter_deps="avcodec"
showspectrumpic_filter_select="fft"
signature_filter_deps="gpl avcodec avformat"
smartblur_filter_deps="gpl swscale"
sofalizer_filter_deps="libmysofa avcodec"
sofalizer_filter_select="fft"
spectrumsynth_filter_deps="avcodec"
spectrumsynth_filter_select="fft"
spp_filter_deps="gpl avcodec"
spp_filter_select="fft idctdsp fdctdsp me_cmp pixblockdsp"
stereo3d_filter_deps="gpl"
subtitles_filter_deps="avformat avcodec libass"
super2xsai_filter_deps="gpl"
pixfmts_super2xsai_test_deps="super2xsai_filter"
tinterlace_filter_deps="gpl"
tinterlace_merge_test_deps="tinterlace_filter"
tinterlace_pad_test_deps="tinterlace_filter"
uspp_filter_deps="gpl avcodec"
vaguedenoiser_filter_deps="gpl"
vidstabdetect_filter_deps="libvidstab"
vidstabtransform_filter_deps="libvidstab"
libvmaf_filter_deps="libvmaf"
zmq_filter_deps="libzmq"
zoompan_filter_deps="swscale"
zscale_filter_deps="libzimg"
scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
# examples
avio_dir_cmd_deps="avformat avutil"
avio_reading_deps="avformat avcodec avutil"
decode_audio_example_deps="avcodec avutil"
decode_video_example_deps="avcodec avutil"
demuxing_decoding_example_deps="avcodec avformat avutil"
encode_audio_example_deps="avcodec avutil"
encode_video_example_deps="avcodec avutil"
extract_mvs_example_deps="avcodec avformat avutil"
filter_audio_example_deps="avfilter avutil"
filtering_audio_example_deps="avfilter avcodec avformat avutil"
filtering_video_example_deps="avfilter avcodec avformat avutil"
http_multiclient_example_deps="avformat avutil fork"
hw_decode_example_deps="avcodec avformat avutil"
metadata_example_deps="avformat avutil"
muxing_example_deps="avcodec avformat avutil swscale"
qsvdec_example_deps="avcodec avutil libmfx h264_qsv_decoder"
remuxing_example_deps="avcodec avformat avutil"
resampling_audio_example_deps="avutil swresample"
scaling_video_example_deps="avutil swscale"
transcode_aac_example_deps="avcodec avformat swresample"
transcoding_example_deps="avfilter avcodec avformat avutil"
# libraries, in linking order
avcodec_deps="avutil"
avcodec_select="null_bsf"
avdevice_deps="avformat avcodec avutil"
avfilter_deps="avutil"
avformat_deps="avcodec avutil"
avresample_deps="avutil"
postproc_deps="avutil gpl"
swresample_deps="avutil"
swscale_deps="avutil"
# programs
ffmpeg_deps="avcodec avfilter avformat swresample"
ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
null_filter
trim_filter"
ffplay_deps="avcodec avformat swscale swresample sdl2"
ffplay_extralibs='$sdl2_extralibs'
ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
ffprobe_deps="avcodec avformat"
ffserver_deps="avformat fork sarestart"
ffserver_select="ffm_muxer rtp_protocol rtsp_demuxer"
# documentation
podpages_deps="perl"
manpages_deps="perl pod2man"
htmlpages_deps="perl"
htmlpages_deps_any="makeinfo_html texi2html"
txtpages_deps="perl makeinfo"
doc_deps_any="manpages htmlpages podpages txtpages"
# default parameters
logfile="ffbuild/config.log"
# installation paths
prefix_default="/usr/local"
bindir_default='${prefix}/bin'
datadir_default='${prefix}/share/ffmpeg'
docdir_default='${prefix}/share/doc/ffmpeg'
incdir_default='${prefix}/include'
libdir_default='${prefix}/lib'
mandir_default='${prefix}/share/man'
# toolchain
ar_default="ar"
cc_default="gcc"
cxx_default="g++"
host_cc_default="gcc"
doxygen_default="doxygen"
install="install"
ln_s_default="ln -s -f"
nm_default="nm -g"
pkg_config_default=pkg-config
ranlib_default="ranlib"
strip_default="strip"
version_script='--version-script'
x86asmexe_default="nasm"
windres_default="windres"
nvcc_default="nvcc"
nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
# OS
target_os_default=$(tolower $(uname -s))
host_os=$target_os_default
# machine
if test "$target_os_default" = aix; then
arch_default=$(uname -p)
strip_default="strip -X32_64"
else
arch_default=$(uname -m)
fi
cpu="generic"
intrinsics="none"
# configurable options
enable $PROGRAM_LIST
enable $DOCUMENT_LIST
enable $EXAMPLE_LIST
enable $(filter_out avresample $LIBRARY_LIST)
enable stripping
enable asm
enable debug
enable doc
enable faan faandct faanidct
enable optimizations
enable runtime_cpudetect
enable safe_bitstream_reader
enable static
enable swscale_alpha
enable valgrind_backtrace
sws_max_filter_size_default=256
set_default sws_max_filter_size
# build settings
SHFLAGS='-shared -Wl,-soname,$$(@F)'
LIBPREF="lib"
LIBSUF=".a"
FULLNAME='$(NAME)$(BUILDSUF)'
LIBNAME='$(LIBPREF)$(FULLNAME)$(LIBSUF)'
SLIBPREF="lib"
SLIBSUF=".so"
SLIBNAME='$(SLIBPREF)$(FULLNAME)$(SLIBSUF)'
SLIBNAME_WITH_VERSION='$(SLIBNAME).$(LIBVERSION)'
SLIBNAME_WITH_MAJOR='$(SLIBNAME).$(LIBMAJOR)'
LIB_INSTALL_EXTRA_CMD='$$(RANLIB) "$(LIBDIR)/$(LIBNAME)"'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_VERSION)'
SLIB_INSTALL_LINKS='$(SLIBNAME_WITH_MAJOR) $(SLIBNAME)'
VERSION_SCRIPT_POSTPROCESS_CMD="cat"
asflags_filter=echo
cflags_filter=echo
ldflags_filter=echo
AS_C='-c'
AS_O='-o $@'
CC_C='-c'
CC_E='-E -o $@'
CC_O='-o $@'
CXX_C='-c'
CXX_O='-o $@'
OBJCC_C='-c'
OBJCC_E='-E -o $@'
OBJCC_O='-o $@'
X86ASM_O='-o $@'
LD_O='-o $@'
LD_LIB='-l%'
LD_PATH='-L'
HOSTCC_C='-c'
HOSTCC_E='-E -o $@'
HOSTCC_O='-o $@'
HOSTLD_O='-o $@'
NVCC_C='-c'
NVCC_O='-o $@'
host_extralibs='-lm'
host_cflags_filter=echo
host_ldflags_filter=echo
target_path='$(CURDIR)'
# since the object filename is not given with the -MM flag, the compiler
# is only able to print the basename, and we must add the path ourselves
DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>/dev/null | sed -e "/^\#.*/d" -e "s,^[[:space:]]*$(@F),$(@D)/$(@F)," > $(@:.o=.d)'
DEPFLAGS='-MM'
mkdir -p ffbuild
# find source path
if test -f configure; then
source_path=.
else
source_path=$(cd $(dirname "$0"); pwd)
case "$source_path" in
*[[:blank:]]*) die "Out of tree builds are impossible with whitespace in source path." ;;
esac
test -e "$source_path/config.h" &&
die "Out of tree builds are impossible with config.h in source dir."
fi
for v in "$@"; do
r=${v#*=}
l=${v%"$r"}
r=$(sh_quote "$r")
FFMPEG_CONFIGURATION="${FFMPEG_CONFIGURATION# } ${l}${r}"
done
find_things(){
thing=$1
pattern=$2
file=$source_path/$3
sed -n "s/^[^#]*$pattern.*([^,]*, *\([^,]*\)\(,.*\)*).*/\1_$thing/p" "$file"
}
ENCODER_LIST=$(find_things encoder ENC libavcodec/allcodecs.c)
DECODER_LIST=$(find_things decoder DEC libavcodec/allcodecs.c)
HWACCEL_LIST=$(find_things hwaccel HWACCEL libavcodec/allcodecs.c)
PARSER_LIST=$(find_things parser PARSER libavcodec/allcodecs.c)
MUXER_LIST=$(find_things muxer _MUX libavformat/allformats.c)
DEMUXER_LIST=$(find_things demuxer DEMUX libavformat/allformats.c)
OUTDEV_LIST=$(find_things outdev OUTDEV libavdevice/alldevices.c)
INDEV_LIST=$(find_things indev _IN libavdevice/alldevices.c)
FILTER_LIST=$(find_things filter FILTER libavfilter/allfilters.c)
find_things_extern(){
thing=$1
pattern=$2
file=$source_path/$3
sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$thing/p" "$file"
}
BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
ALL_COMPONENTS="
$BSF_LIST
$DECODER_LIST
$DEMUXER_LIST
$ENCODER_LIST
$FILTER_LIST
$HWACCEL_LIST
$INDEV_LIST
$MUXER_LIST
$OUTDEV_LIST
$PARSER_LIST
$PROTOCOL_LIST
"
for n in $COMPONENT_LIST; do
v=$(toupper ${n%s})_LIST
eval enable \$$v
eval ${n}_if_any="\$$v"
done
enable $ARCH_EXT_LIST
die_unknown(){
echo "Unknown option \"$1\"."
echo "See $0 --help for available options."
exit 1
}
print_in_columns() {
cols=$(expr $ncols / 24)
cat | tr ' ' '\n' | sort | pr -r "-$cols" -w $ncols -t
}
show_list() {
suffix=_$1
shift
echo $* | sed s/$suffix//g | print_in_columns
exit 0
}
rand_list(){
IFS=', '
set -- $*
unset IFS
for thing; do
comp=${thing%:*}
prob=${thing#$comp}
prob=${prob#:}
is_in ${comp} $COMPONENT_LIST && eval comp=\$$(toupper ${comp%s})_LIST
echo "prob ${prob:-0.5}"
printf '%s\n' $comp
done
}
do_random(){
action=$1
shift
random_seed=$(awk "BEGIN { srand($random_seed); print srand() }")
$action $(rand_list "$@" | awk "BEGIN { srand($random_seed) } \$1 == \"prob\" { prob = \$2; next } rand() < prob { print }")
}
for opt do
optval="${opt#*=}"
case "$opt" in
--extra-ldflags=*)
add_ldflags $optval
;;
--extra-ldexeflags=*)
add_ldexeflags $optval
;;
--extra-ldlibflags=*)
add_ldlibflags $optval
;;
--extra-libs=*)
add_extralibs $optval
;;
--disable-devices)
disable $INDEV_LIST $OUTDEV_LIST
;;
--enable-debug=*)
debuglevel="$optval"
;;
--disable-programs)
disable $PROGRAM_LIST
;;
--disable-everything)
map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
;;
--disable-all)
map 'eval unset \${$(toupper ${v%s})_LIST}' $COMPONENT_LIST
disable $LIBRARY_LIST $PROGRAM_LIST doc
enable avutil
;;
--enable-random|--disable-random)
action=${opt%%-random}
do_random ${action#--} $COMPONENT_LIST
;;
--enable-random=*|--disable-random=*)
action=${opt%%-random=*}
do_random ${action#--} $optval
;;
--enable-*=*|--disable-*=*)
eval $(echo "${opt%%=*}" | sed 's/--/action=/;s/-/ thing=/')
is_in "${thing}s" $COMPONENT_LIST || die_unknown "$opt"
eval list=\$$(toupper $thing)_LIST
name=$(echo "${optval}" | sed "s/,/_${thing}|/g")_${thing}
list=$(filter "$name" $list)
[ "$list" = "" ] && warn "Option $opt did not match anything"
$action $list
;;
--enable-yasm|--disable-yasm)
warn "The ${opt} option is only provided for compatibility and will be\n"\
"removed in the future. Use --enable-x86asm / --disable-x86asm instead."
test $opt = --enable-yasm && x86asm=yes || x86asm=no
;;
--yasmexe=*)
warn "The --yasmexe option is only provided for compatibility and will be\n"\
"removed in the future. Use --x86asmexe instead."
x86asmexe="$optval"
;;
--enable-?*|--disable-?*)
eval $(echo "$opt" | sed 's/--/action=/;s/-/ option=/;s/-/_/g')
if is_in $option $COMPONENT_LIST; then
test $action = disable && action=unset
eval $action \$$(toupper ${option%s})_LIST
elif is_in $option $CMDLINE_SELECT; then
$action $option
else
die_unknown $opt
fi
;;
--list-*)
NAME="${opt#--list-}"
is_in $NAME $COMPONENT_LIST || die_unknown $opt
NAME=${NAME%s}
eval show_list $NAME \$$(toupper $NAME)_LIST
;;
--help|-h) show_help
;;
--quiet|-q) quiet=yes
;;
--fatal-warnings) enable fatal_warnings
;;
--libfuzzer=*)
libfuzzer_path="$optval"
;;
*)
optname="${opt%%=*}"
optname="${optname#--}"
optname=$(echo "$optname" | sed 's/-/_/g')
if is_in $optname $CMDLINE_SET; then
eval $optname='$optval'
elif is_in $optname $CMDLINE_APPEND; then
append $optname "$optval"
else
die_unknown $opt
fi
;;
esac
done
for e in $env; do
eval "export $e"
done
# Mark specifically enabled, but normally autodetected libraries as requested.
for lib in $AUTODETECT_LIBS; do
enabled $lib && request $lib
done
# Enable platform codecs by default.
enable_weak audiotoolbox
# Enable hwaccels by default.
enable_weak crystalhd d3d11va dxva2 vaapi vda vdpau videotoolbox_hwaccel xvmc
enable_weak xlib libxcb libxcb_shm libxcb_shape libxcb_xfixes
enable_weak cuda cuvid nvenc vda_framework videotoolbox videotoolbox_encoder
# Enable compression/decompression libraries by default
enable_weak zlib bzlib lzma
enable_weak iconv
enable_weak securetransport schannel
disabled logging && logfile=/dev/null
die_license_disabled() {
enabled $1 || { enabled $v && die "$v is $1 and --enable-$1 is not specified."; }
}
die_license_disabled_gpl() {
enabled $1 || { enabled $v && die "$v is incompatible with the gpl and --enable-$1 is not specified."; }
}
map "die_license_disabled gpl" $EXTERNAL_LIBRARY_GPL_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
map "die_license_disabled version3" $EXTERNAL_LIBRARY_VERSION3_LIST $EXTERNAL_LIBRARY_GPLV3_LIST
enabled gpl && map "die_license_disabled_gpl nonfree" $EXTERNAL_LIBRARY_NONFREE_LIST
map "die_license_disabled nonfree" $HWACCEL_LIBRARY_NONFREE_LIST
enabled version3 && { enabled gpl && enable gplv3 || enable lgplv3; }
# Disable all the library-specific components if the library itself
# is disabled, see AVCODEC_LIST and following _LIST variables.
disable_components(){
disabled ${1} && disable $(
eval components="\$$(toupper ${1})_COMPONENTS"
map 'eval echo \${$(toupper ${v%s})_LIST}' $components
)
}
map 'disable_components $v' $LIBRARY_LIST
echo "# $0 $FFMPEG_CONFIGURATION" > $logfile
set >> $logfile
test -n "$valgrind" && toolchain="valgrind-memcheck"
enabled ossfuzz && {
add_cflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp -fno-omit-frame-pointer
add_ldflags -fsanitize=address,undefined -fsanitize-coverage=trace-pc-guard,trace-cmp
}
case "$toolchain" in
*-asan)
cc_default="${toolchain%-asan}"
add_cflags -fsanitize=address
add_ldflags -fsanitize=address
;;
*-msan)
cc_default="${toolchain%-msan}"
add_cflags -fsanitize=memory -fsanitize-memory-track-origins
add_ldflags -fsanitize=memory
;;
*-tsan)
cc_default="${toolchain%-tsan}"
add_cflags -fsanitize=thread -fPIE
add_ldflags -fsanitize=thread -pie
case "$toolchain" in
gcc-tsan)
add_cflags -fPIC
add_ldflags -fPIC
;;
esac
;;
*-usan)
cc_default="${toolchain%-usan}"
add_cflags -fsanitize=undefined
add_ldflags -fsanitize=undefined
;;
valgrind-*)
target_exec_default="valgrind"
case "$toolchain" in
valgrind-massif)
target_exec_args="--tool=massif --alloc-fn=av_malloc --alloc-fn=av_mallocz --alloc-fn=av_calloc --alloc-fn=av_fast_padded_malloc --alloc-fn=av_fast_malloc --alloc-fn=av_realloc_f --alloc-fn=av_fast_realloc --alloc-fn=av_realloc"
;;
valgrind-memcheck)
target_exec_args="--error-exitcode=1 --malloc-fill=0x2a --track-origins=yes --leak-check=full --gen-suppressions=all --suppressions=$source_path/tests/fate-valgrind.supp"
;;
esac
;;
msvc)
# Check whether the current MSVC version needs the C99 converter.
# From MSVC 2013 (compiler major version 18) onwards, it does actually
# support enough of C99 to build ffmpeg. Default to the new
# behaviour if the regexp was unable to match anything, since this
# successfully parses the version number of existing supported
# versions that require the converter (MSVC 2010 and 2012).
cl_major_ver=$(cl 2>&1 | sed -n 's/.*Version \([[:digit:]]\{1,\}\)\..*/\1/p')
if [ -z "$cl_major_ver" ] || [ $cl_major_ver -ge 18 ]; then
cc_default="cl"
cxx_default="cl"
else
cc_default="c99wrap cl"
cxx_default="c99wrap cl"
fi
ld_default="$source_path/compat/windows/mslink"
nm_default="dumpbin -symbols"
ar_default="lib"
case "$arch" in
arm*)
as_default="armasm"
;;
esac
target_os_default="win32"
# Use a relative path for TMPDIR. This makes sure all the
# ffconf temp files are written with a relative path, avoiding
# issues with msys/win32 path conversion for MSVC parameters
# such as -Fo<file> or -out:<file>.
TMPDIR=.
;;
icl)
cc_default="icl"
ld_default="xilink"
nm_default="dumpbin -symbols"
ar_default="xilib"
target_os_default="win32"
TMPDIR=.
;;
gcov)
add_cflags -fprofile-arcs -ftest-coverage
add_ldflags -fprofile-arcs -ftest-coverage
;;
llvm-cov)
add_cflags -fprofile-arcs -ftest-coverage
add_ldflags --coverage
;;
hardened)
add_cppflags -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
add_cflags -fno-strict-overflow -fstack-protector-all
add_ldflags -Wl,-z,relro -Wl,-z,now
add_cflags -fPIE
add_ldexeflags -fPIE -pie
;;
?*)
die "Unknown toolchain $toolchain"
;;
esac
test -n "$cross_prefix" && enable cross_compile
if enabled cross_compile; then
test -n "$arch" && test -n "$target_os" ||
die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
fi
ar_default="${cross_prefix}${ar_default}"
cc_default="${cross_prefix}${cc_default}"
cxx_default="${cross_prefix}${cxx_default}"
nm_default="${cross_prefix}${nm_default}"
pkg_config_default="${cross_prefix}${pkg_config_default}"
if ${cross_prefix}${ranlib_default} 2>&1 | grep -q "\-D "; then
ranlib_default="${cross_prefix}${ranlib_default} -D"
else
ranlib_default="${cross_prefix}${ranlib_default}"
fi
strip_default="${cross_prefix}${strip_default}"
windres_default="${cross_prefix}${windres_default}"
sysinclude_default="${sysroot}/usr/include"
set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
target_exec target_os x86asmexe nvcc
enabled cross_compile || host_cc_default=$cc
set_default host_cc
pkg_config_fail_message=""
if ! $pkg_config --version >/dev/null 2>&1; then
warn "$pkg_config not found, library detection may fail."
pkg_config=false
elif is_in -static $cc $LDFLAGS && ! is_in --static $pkg_config $pkg_config_flags; then
pkg_config_fail_message="
Note: When building a static binary, add --pkg-config-flags=\"--static\"."
fi
if test $doxygen != $doxygen_default && \
! $doxygen --version >/dev/null 2>&1; then
warn "Specified doxygen \"$doxygen\" not found, API documentation will fail to build."
fi
exesuf() {
case $1 in
mingw32*|mingw64*|win32|win64|cygwin*|*-dos|freedos|opendos|os/2*|symbian) echo .exe ;;
esac
}
EXESUF=$(exesuf $target_os)
HOSTEXESUF=$(exesuf $host_os)
# set temporary file name
: ${TMPDIR:=$TEMPDIR}
: ${TMPDIR:=$TMP}
: ${TMPDIR:=/tmp}
if [ -n "$tempprefix" ] ; then
mktemp(){
tmpname="$tempprefix.${HOSTNAME}.${UID}"
echo "$tmpname"
mkdir "$tmpname"
}
elif ! check_cmd mktemp -u XXXXXX; then
# simple replacement for missing mktemp
# NOT SAFE FOR GENERAL USE
mktemp(){
tmpname="${2%%XXX*}.${HOSTNAME}.${UID}.$$"
echo "$tmpname"
mkdir "$tmpname"
}
fi
FFTMPDIR=$(mktemp -d "${TMPDIR}/ffconf.XXXXXXXX" 2> /dev/null) ||
die "Unable to create temporary directory in $TMPDIR."
tmpfile(){
tmp="${FFTMPDIR}/test"$2
(set -C; exec > $tmp) 2> /dev/null ||
die "Unable to create temporary file in $FFTMPDIR."
eval $1=$tmp
}
trap 'rm -rf -- "$FFTMPDIR"' EXIT
trap 'exit 2' INT
tmpfile TMPASM .asm
tmpfile TMPC .c
tmpfile TMPCPP .cpp
tmpfile TMPE $EXESUF
tmpfile TMPH .h
tmpfile TMPM .m
tmpfile TMPO .o
tmpfile TMPS .S
tmpfile TMPSH .sh
tmpfile TMPV .ver
unset -f mktemp
chmod +x $TMPE
# make sure we can execute files in $TMPDIR
cat > $TMPSH 2>> $logfile <<EOF
#! /bin/sh
EOF
chmod +x $TMPSH >> $logfile 2>&1
if ! $TMPSH >> $logfile 2>&1; then
cat <<EOF
Unable to create and execute files in $TMPDIR. Set the TMPDIR environment
variable to another directory and make sure that it is not mounted noexec.
EOF
die "Sanity test failed."
fi
armasm_flags(){
for flag; do
case $flag in
# Filter out MSVC cl.exe options from cflags that shouldn't
# be passed to gas-preprocessor
-M[TD]*) ;;
*) echo $flag ;;
esac
done
}
ccc_flags(){
for flag; do
case $flag in
-std=c99) echo -c99 ;;
-mcpu=*) echo -arch ${flag#*=} ;;
-mieee) echo -ieee ;;
-O*|-fast) echo $flag ;;
-fno-math-errno) echo -assume nomath_errno ;;
-g) echo -g3 ;;
-Wall) echo -msg_enable level2 ;;
-Wno-pointer-sign) echo -msg_disable ptrmismatch1 ;;
-Wl,*) echo $flag ;;
-f*|-W*) ;;
*) echo $flag ;;
esac
done
}
cparser_flags(){
for flag; do
case $flag in
-Wno-switch) echo -Wno-switch-enum ;;
-Wno-format-zero-length) ;;
-Wdisabled-optimization) ;;
-Wno-pointer-sign) echo -Wno-other ;;
*) echo $flag ;;
esac
done
}
msvc_common_flags(){
for flag; do
case $flag in
# In addition to specifying certain flags under the compiler
# specific filters, they must be specified here as well or else the
# generic catch all at the bottom will print the original flag.
-Wall) ;;
-Wextra) ;;
-std=c99) ;;
# Common flags
-fomit-frame-pointer) ;;
-g) echo -Z7 ;;
-fno-math-errno) ;;
-fno-common) ;;
-fno-signed-zeros) ;;
-fPIC) ;;
-mthumb) ;;
-march=*) ;;
-lz) echo zlib.lib ;;
-lx264) echo libx264.lib ;;
-lstdc++) ;;
-l*) echo ${flag#-l}.lib ;;
-LARGEADDRESSAWARE) echo $flag ;;
-L*) echo -libpath:${flag#-L} ;;
*) echo $flag ;;
esac
done
}
msvc_flags(){
msvc_common_flags "$@"
for flag; do
case $flag in
-Wall) echo -W3 -wd4018 -wd4146 -wd4244 -wd4305 \
-wd4554 ;;
-Wextra) echo -W4 -wd4244 -wd4127 -wd4018 -wd4389 \
-wd4146 -wd4057 -wd4204 -wd4706 -wd4305 \
-wd4152 -wd4324 -we4013 -wd4100 -wd4214 \
-wd4307 \
-wd4273 -wd4554 -wd4701 -wd4703 ;;
esac
done
}
icl_flags(){
msvc_common_flags "$@"
for flag; do
case $flag in
# Despite what Intel's documentation says -Wall, which is supported
# on Windows, does enable remarks so disable them here.
-Wall) echo $flag -Qdiag-disable:remark ;;
-std=c99) echo -Qstd=c99 ;;
-flto) echo -ipo ;;
esac
done
}
icc_flags(){
for flag; do
case $flag in
-flto) echo -ipo ;;
*) echo $flag ;;
esac
done
}
pgi_flags(){
for flag; do
case $flag in
-flto) echo -Mipa=fast,libopt,libinline,vestigial ;;
-fomit-frame-pointer) echo -Mnoframe ;;
-g) echo -gopt ;;
*) echo $flag ;;
esac
done
}
suncc_flags(){
for flag; do
case $flag in
-march=*|-mcpu=*)
case "${flag#*=}" in
native) echo -xtarget=native ;;
v9|niagara) echo -xarch=sparc ;;
ultrasparc) echo -xarch=sparcvis ;;
ultrasparc3|niagara2) echo -xarch=sparcvis2 ;;
i586|pentium) echo -xchip=pentium ;;
i686|pentiumpro|pentium2) echo -xtarget=pentium_pro ;;
pentium3*|c3-2) echo -xtarget=pentium3 ;;
pentium-m) echo -xarch=sse2 -xchip=pentium3 ;;
pentium4*) echo -xtarget=pentium4 ;;
prescott|nocona) echo -xarch=sse3 -xchip=pentium4 ;;
*-sse3) echo -xarch=sse3 ;;
core2) echo -xarch=ssse3 -xchip=core2 ;;
bonnell) echo -xarch=ssse3 ;;
corei7|nehalem) echo -xtarget=nehalem ;;
westmere) echo -xtarget=westmere ;;
silvermont) echo -xarch=sse4_2 ;;
corei7-avx|sandybridge) echo -xtarget=sandybridge ;;
core-avx*|ivybridge|haswell|broadwell|skylake*|knl)
echo -xarch=avx ;;
amdfam10|barcelona) echo -xtarget=barcelona ;;
btver1) echo -xarch=amdsse4a ;;
btver2|bdver*|znver*) echo -xarch=avx ;;
athlon-4|athlon-[mx]p) echo -xarch=ssea ;;
k8|opteron|athlon64|athlon-fx)
echo -xarch=sse2a ;;
athlon*) echo -xarch=pentium_proa ;;
esac
;;
-std=c99) echo -xc99 ;;
-fomit-frame-pointer) echo -xregs=frameptr ;;
-fPIC) echo -KPIC -xcode=pic32 ;;
-W*,*) echo $flag ;;
-f*-*|-W*|-mimpure-text) ;;
-shared) echo -G ;;
*) echo $flag ;;
esac
done
}
tms470_flags(){
for flag; do
case $flag in
-march=*|-mcpu=*)
case "${flag#*=}" in
armv7-a|cortex-a*) echo -mv=7a8 ;;
armv7-r|cortex-r*) echo -mv=7r4 ;;
armv7-m|cortex-m*) echo -mv=7m3 ;;
armv6*|arm11*) echo -mv=6 ;;
armv5*e|arm[79]*e*|arm9[24]6*|arm96*|arm102[26])
echo -mv=5e ;;
armv4*|arm7*|arm9[24]*) echo -mv=4 ;;
esac
;;
-mfpu=neon) echo --float_support=vfpv3 --neon ;;
-mfpu=vfp) echo --float_support=vfpv2 ;;
-mfpu=vfpv3) echo --float_support=vfpv3 ;;
-mfpu=vfpv3-d16) echo --float_support=vfpv3d16 ;;
-msoft-float) echo --float_support=vfplib ;;
-O[0-3]|-mf=*) echo $flag ;;
-g) echo -g -mn ;;
-pds=*) echo $flag ;;
-D*|-I*) echo $flag ;;
--gcc|--abi=*) echo $flag ;;
-me) echo $flag ;;
esac
done
}
probe_cc(){
pfx=$1
_cc=$2
first=$3
unset _type _ident _cc_c _cc_e _cc_o _flags _cflags
unset _ld_o _ldflags _ld_lib _ld_path
unset _depflags _DEPCMD _DEPFLAGS
_flags_filter=echo
if $_cc --version 2>&1 | grep -q '^GNU assembler'; then
true # no-op to avoid reading stdin in following checks
elif $_cc -v 2>&1 | grep -q '^gcc.*LLVM'; then
_type=llvm_gcc
gcc_extra_ver=$(expr "$($_cc --version 2>/dev/null | head -n1)" : '.*\((.*)\)')
_ident="llvm-gcc $($_cc -dumpversion 2>/dev/null) $gcc_extra_ver"
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O3'
_cflags_size='-Os'
elif $_cc -v 2>&1 | grep -qi ^gcc; then
_type=gcc
gcc_version=$($_cc --version | head -n1)
gcc_basever=$($_cc -dumpversion)
gcc_pkg_ver=$(expr "$gcc_version" : '[^ ]* \(([^)]*)\)')
gcc_ext_ver=$(expr "$gcc_version" : ".*$gcc_pkg_ver $gcc_basever \\(.*\\)")
_ident=$(cleanws "gcc $gcc_basever $gcc_pkg_ver $gcc_ext_ver")
case $gcc_basever in
2) ;;
2.*) ;;
*) _depflags='-MMD -MF $(@:.o=.d) -MT $@' ;;
esac
if [ "$first" = true ]; then
case $gcc_basever in
4.2*)
warn "gcc 4.2 is outdated and may miscompile FFmpeg. Please use a newer compiler." ;;
esac
fi
_cflags_speed='-O3'
_cflags_size='-Os'
elif $_cc --version 2>/dev/null | grep -q ^icc; then
_type=icc
_ident=$($_cc --version | head -n1)
_depflags='-MMD'
_cflags_speed='-O3'
_cflags_size='-Os'
_cflags_noopt='-O1'
_flags_filter=icc_flags
elif $_cc -v 2>&1 | grep -q xlc; then
_type=xlc
_ident=$($_cc -qversion 2>/dev/null | head -n1)
_cflags_speed='-O5'
_cflags_size='-O5 -qcompact'
elif $_cc -V 2>/dev/null | grep -q Compaq; then
_type=ccc
_ident=$($_cc -V | head -n1 | cut -d' ' -f1-3)
_DEPFLAGS='-M'
_cflags_speed='-fast'
_cflags_size='-O1'
_flags_filter=ccc_flags
elif $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
test -d "$sysroot" || die "No valid sysroot specified."
_type=armcc
_ident=$($_cc --vsn | grep -i build | head -n1 | sed 's/.*: //')
armcc_conf="$PWD/armcc.conf"
$_cc --arm_linux_configure \
--arm_linux_config_file="$armcc_conf" \
--configure_sysroot="$sysroot" \
--configure_cpp_headers="$sysinclude" >>$logfile 2>&1 ||
die "Error creating armcc configuration file."
$_cc --vsn | grep -q RVCT && armcc_opt=rvct || armcc_opt=armcc
_flags="--arm_linux_config_file=$armcc_conf --translate_gcc"
as_default="${cross_prefix}gcc"
_depflags='-MMD'
_cflags_speed='-O3'
_cflags_size='-Os'
elif $_cc -version 2>/dev/null | grep -Eq 'TMS470|TI ARM'; then
_type=tms470
_ident=$($_cc -version | head -n1 | tr -s ' ')
_flags='--gcc --abi=eabi -me'
_cc_e='-ppl -fe=$@'
_cc_o='-fe=$@'
_depflags='-ppa -ppd=$(@:.o=.d)'
_cflags_speed='-O3 -mf=5'
_cflags_size='-O3 -mf=2'
_flags_filter=tms470_flags
elif $_cc -v 2>&1 | grep -q clang; then
_type=clang
_ident=$($_cc --version 2>/dev/null | head -n1)
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O3'
_cflags_size='-Oz'
elif $_cc -V 2>&1 | grep -q Sun; then
_type=suncc
_ident=$($_cc -V 2>&1 | head -n1 | cut -d' ' -f 2-)
_DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< | sed -e "1s,^.*: ,$@: ," -e "\$$!s,\$$, \\\," -e "1!s,^.*: , ," > $(@:.o=.d)'
_DEPFLAGS='-xM1 -xc99'
_ldflags='-std=c99'
_cflags_speed='-O5'
_cflags_size='-O5 -xspace'
_flags_filter=suncc_flags
elif $_cc -v 2>&1 | grep -q 'PathScale\|Path64'; then
_type=pathscale
_ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O2'
_cflags_size='-Os'
_flags_filter='filter_out -Wdisabled-optimization'
elif $_cc -v 2>&1 | grep -q Open64; then
_type=open64
_ident=$($_cc -v 2>&1 | head -n1 | tr -d :)
_depflags='-MMD -MF $(@:.o=.d) -MT $@'
_cflags_speed='-O2'
_cflags_size='-Os'
_flags_filter='filter_out -Wdisabled-optimization|-Wtype-limits|-fno-signed-zeros'
elif $_cc -V 2>&1 | grep -q Portland; then
_type=pgi
_ident="PGI $($_cc -V 2>&1 | awk '/^pgcc/ { print $2; exit }')"
opt_common='-alias=ansi -Mdse -Mlre -Mpre'
_cflags_speed="-O3 -Mautoinline -Munroll=c:4 $opt_common"
_cflags_size="-O2 -Munroll=c:1 $opt_common"
_cflags_noopt="-O"
_flags_filter=pgi_flags
elif $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
_type=armasm
_ident=$($_cc | head -n1)
# 4509: "This form of conditional instruction is deprecated"
_flags="-nologo -ignore 4509"
_flags_filter=armasm_flags
elif $_cc 2>&1 | grep -q Intel; then
_type=icl
_ident=$($_cc 2>&1 | head -n1)
_depflags='-QMMD -QMF$(@:.o=.d) -QMT$@'
# Not only is O3 broken on 13.x+ but it is slower on all previous
# versions (tested) as well.
_cflags_speed="-O2"
_cflags_size="-O1 -Oi" # -O1 without -Oi miscompiles stuff
if $_cc 2>&1 | grep -q Linker; then
_ld_o='-out:$@'
else
_ld_o='-Fe$@'
fi
_cc_o='-Fo$@'
_cc_e='-P'
_flags_filter=icl_flags
_ld_lib='lib%.a'
_ld_path='-libpath:'
# -Qdiag-error to make icl error when seeing certain unknown arguments
_flags='-nologo -Qdiag-error:4044,10157'
# -Qvec- -Qsimd- to prevent miscompilation, -GS, fp:precise for consistency
# with MSVC which enables it by default.
_cflags='-Qms0 -Qvec- -Qsimd- -GS -fp:precise'
disable stripping
elif $_cc -? 2>/dev/null | grep -q 'LLVM.*Linker'; then
# lld can emulate multiple different linkers; in ms link.exe mode,
# the -? parameter gives the help output which contains an identifyable
# string, while it gives an error in other modes.
_type=lld-link
# The link.exe mode doesn't have a switch for getting the version,
# but we can force it back to gnu mode and get the version from there.
_ident=$($_cc -flavor gnu --version 2>/dev/null)
_ld_o='-out:$@'
_flags_filter=msvc_flags
_ld_lib='lib%.a'
_ld_path='-libpath:'
elif $_cc -nologo- 2>&1 | grep -q Microsoft; then
_type=msvc
_ident=$($_cc 2>&1 | head -n1)
_DEPCMD='$(DEP$(1)) $(DEP$(1)FLAGS) $($(1)DEP_FLAGS) $< 2>&1 | awk '\''/including/ { sub(/^.*file: */, ""); gsub(/\\/, "/"); if (!match($$0, / /)) print "$@:", $$0 }'\'' > $(@:.o=.d)'
_DEPFLAGS='$(CPPFLAGS) $(CFLAGS) -showIncludes -Zs'
_cflags_speed="-O2"
_cflags_size="-O1"
_cflags_noopt="-O1"
if $_cc -nologo- 2>&1 | grep -q Linker; then
_ld_o='-out:$@'
else
_ld_o='-Fe$@'
fi
_cc_o='-Fo$@'
_cc_e='-P -Fi$@'
_flags_filter=msvc_flags
_ld_lib='lib%.a'
_ld_path='-libpath:'
_flags='-nologo'
disable stripping
elif $_cc --version 2>/dev/null | grep -q ^cparser; then
_type=cparser
_ident=$($_cc --version | head -n1)
_depflags='-MMD'
_cflags_speed='-O4'
_cflags_size='-O2'
_flags_filter=cparser_flags
fi
eval ${pfx}_type=\$_type
eval ${pfx}_ident=\$_ident
}
set_ccvars(){
eval ${1}_C=\${_cc_c-\${${1}_C}}
eval ${1}_E=\${_cc_e-\${${1}_E}}
eval ${1}_O=\${_cc_o-\${${1}_O}}
if [ -n "$_depflags" ]; then
eval ${1}_DEPFLAGS=\$_depflags
else
eval ${1}DEP=\${_DEPCMD:-\$DEPCMD}
eval ${1}DEP_FLAGS=\${_DEPFLAGS:-\$DEPFLAGS}
eval DEP${1}FLAGS=\$_flags
fi
}
probe_cc cc "$cc" "true"
cflags_filter=$_flags_filter
cflags_speed=$_cflags_speed
cflags_size=$_cflags_size
cflags_noopt=$_cflags_noopt
add_cflags $_flags $_cflags
cc_ldflags=$_ldflags
set_ccvars CC
set_ccvars CXX
probe_cc hostcc "$host_cc"
host_cflags_filter=$_flags_filter
host_cflags_speed=$_cflags_speed
add_host_cflags $_flags $_cflags
set_ccvars HOSTCC
test -n "$cc_type" && enable $cc_type ||
warn "Unknown C compiler $cc, unable to select optimal CFLAGS"
: ${as_default:=$cc}
: ${objcc_default:=$cc}
: ${dep_cc_default:=$cc}
: ${ld_default:=$cc}
: ${host_ld_default:=$host_cc}
set_default ar as objcc dep_cc ld ln_s host_ld windres
probe_cc as "$as"
asflags_filter=$_flags_filter
add_asflags $_flags $_cflags
set_ccvars AS
probe_cc objcc "$objcc"
objcflags_filter=$_flags_filter
add_objcflags $_flags $_cflags
set_ccvars OBJC
probe_cc ld "$ld"
ldflags_filter=$_flags_filter
add_ldflags $_flags $_ldflags
test "$cc_type" != "$ld_type" && add_ldflags $cc_ldflags
LD_O=${_ld_o-$LD_O}
LD_LIB=${_ld_lib-$LD_LIB}
LD_PATH=${_ld_path-$LD_PATH}
probe_cc hostld "$host_ld"
host_ldflags_filter=$_flags_filter
add_host_ldflags $_flags $_ldflags
HOSTLD_O=${_ld_o-$HOSTLD_O}
if [ -z "$CC_DEPFLAGS" ] && [ "$dep_cc" != "$cc" ]; then
probe_cc depcc "$dep_cc"
CCDEP=${_DEPCMD:-$DEPCMD}
CCDEP_FLAGS=${_DEPFLAGS:=$DEPFLAGS}
DEPCCFLAGS=$_flags
fi
if $ar 2>&1 | grep -q Microsoft; then
arflags="-nologo"
ar_o='-out:$@'
elif $ar 2>&1 | grep -q 'Texas Instruments'; then
arflags="rq"
ar_o='$@'
elif $ar 2>&1 | grep -q 'Usage: ar.*-X.*any'; then
arflags='-Xany -r -c'
ar_o='$@'
elif $ar 2>&1 | grep -q "\[D\] "; then
arflags="rcD"
ar_o='$@'
else
arflags="rc"
ar_o='$@'
fi
add_cflags $extra_cflags
add_cxxflags $extra_cxxflags
add_objcflags $extra_objcflags
add_asflags $extra_cflags
if test -n "$sysroot"; then
case "$cc_type" in
gcc|llvm_gcc|clang)
add_cppflags --sysroot="$sysroot"
add_ldflags --sysroot="$sysroot"
# On Darwin --sysroot may be ignored, -isysroot always affects headers and linking
add_cppflags -isysroot "$sysroot"
add_ldflags -isysroot "$sysroot"
;;
tms470)
add_cppflags -I"$sysinclude"
add_ldflags --sysroot="$sysroot"
;;
esac
fi
if test "$cpu" = host; then
enabled cross_compile &&
die "--cpu=host makes no sense when cross-compiling."
case "$cc_type" in
gcc|llvm_gcc)
check_native(){
$cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
sed -n "/cc1.*$1=/{
s/.*$1=\\([^ ]*\\).*/\\1/
p
q
}" $TMPE
}
cpu=$(check_native -march || check_native -mcpu)
;;
clang)
check_native(){
$cc $1=native -v -c -o $TMPO $TMPC >$TMPE 2>&1 || return
sed -n "/cc1.*-target-cpu /{
s/.*-target-cpu \\([^ ]*\\).*/\\1/
p
q
}" $TMPE
}
cpu=$(check_native -march)
;;
esac
test "${cpu:-host}" = host &&
die "--cpu=host not supported with compiler $cc"
fi
# Deal with common $arch aliases
case "$arch" in
aarch64|arm64)
arch="aarch64"
;;
arm*|iPad*|iPhone*)
arch="arm"
;;
mips*|IP*)
case "$arch" in
*el)
add_cppflags -EL
add_ldflags -EL
;;
*eb)
add_cppflags -EB
add_ldflags -EB
;;
esac
arch="mips"
;;
parisc*|hppa*)
arch="parisc"
;;
"Power Macintosh"|ppc*|powerpc*)
arch="ppc"
;;
s390|s390x)
arch="s390"
;;
sh4|sh)
arch="sh4"
;;
sun4*|sparc*)
arch="sparc"
;;
tilegx|tile-gx)
arch="tilegx"
;;
i[3-6]86*|i86pc|BePC|x86pc|x86_64|x86_32|amd64)
arch="x86"
;;
esac
is_in $arch $ARCH_LIST || warn "unknown architecture $arch"
enable $arch
# Add processor-specific flags
if enabled aarch64; then
case $cpu in
armv*)
cpuflags="-march=$cpu"
;;
*)
cpuflags="-mcpu=$cpu"
;;
esac
elif enabled alpha; then
cpuflags="-mcpu=$cpu"
elif enabled arm; then
check_arm_arch() {
check_cpp_condition stddef.h \
"defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
$cpuflags
}
probe_arm_arch() {
if check_arm_arch 4; then echo armv4
elif check_arm_arch 4T; then echo armv4t
elif check_arm_arch 5; then echo armv5
elif check_arm_arch 5E; then echo armv5e
elif check_arm_arch 5T; then echo armv5t
elif check_arm_arch 5TE; then echo armv5te
elif check_arm_arch 5TEJ; then echo armv5te
elif check_arm_arch 6; then echo armv6
elif check_arm_arch 6J; then echo armv6j
elif check_arm_arch 6K; then echo armv6k
elif check_arm_arch 6Z; then echo armv6z
elif check_arm_arch 6ZK; then echo armv6zk
elif check_arm_arch 6T2; then echo armv6t2
elif check_arm_arch 7; then echo armv7
elif check_arm_arch 7A 7_A; then echo armv7-a
elif check_arm_arch 7S; then echo armv7-a
elif check_arm_arch 7R 7_R; then echo armv7-r
elif check_arm_arch 7M 7_M; then echo armv7-m
elif check_arm_arch 7EM 7E_M; then echo armv7-m
elif check_arm_arch 8A 8_A; then echo armv8-a
fi
}
[ "$cpu" = generic ] && cpu=$(probe_arm_arch)
case $cpu in
armv*)
cpuflags="-march=$cpu"
subarch=$(echo $cpu | sed 's/[^a-z0-9]//g')
;;
*)
cpuflags="-mcpu=$cpu"
case $cpu in
cortex-a*) subarch=armv7a ;;
cortex-r*) subarch=armv7r ;;
cortex-m*) enable thumb; subarch=armv7m ;;
arm11*) subarch=armv6 ;;
arm[79]*e*|arm9[24]6*|arm96*|arm102[26]) subarch=armv5te ;;
armv4*|arm7*|arm9[24]*) subarch=armv4 ;;
*) subarch=$(probe_arm_arch) ;;
esac
;;
esac
case "$subarch" in
armv5t*) enable fast_clz ;;
armv[6-8]*)
enable fast_clz
disabled fast_unaligned || enable fast_unaligned
;;
esac
elif enabled avr32; then
case $cpu in
ap7[02]0[0-2])
subarch="avr32_ap"
cpuflags="-mpart=$cpu"
;;
ap)
subarch="avr32_ap"
cpuflags="-march=$cpu"
;;
uc3[ab]*)
subarch="avr32_uc"
cpuflags="-mcpu=$cpu"
;;
uc)
subarch="avr32_uc"
cpuflags="-march=$cpu"
;;
esac
elif enabled bfin; then
cpuflags="-mcpu=$cpu"
elif enabled mips; then
cpuflags="-march=$cpu"
if [ "$cpu" != "generic" ]; then
disable mips32r2
disable mips32r5
disable mips64r2
disable mips32r6
disable mips64r6
disable loongson2
disable loongson3
case $cpu in
24kc|24kf*|24kec|34kc|1004kc|24kef*|34kf*|1004kf*|74kc|74kf)
enable mips32r2
disable msa
;;
p5600|i6400|p6600)
disable mipsdsp
disable mipsdspr2
;;
loongson*)
enable loongson2
enable loongson3
enable local_aligned_8 local_aligned_16 local_aligned_32
enable simd_align_16
enable fast_64bit
enable fast_clz
enable fast_cmov
enable fast_unaligned
disable aligned_stack
disable mipsfpu
disable mipsdsp
disable mipsdspr2
case $cpu in
loongson3*)
cpuflags="-march=loongson3a -mhard-float -fno-expensive-optimizations"
;;
loongson2e)
cpuflags="-march=loongson2e -mhard-float -fno-expensive-optimizations"
;;
loongson2f)
cpuflags="-march=loongson2f -mhard-float -fno-expensive-optimizations"
;;
esac
;;
*)
# Unknown CPU. Disable everything.
warn "unknown CPU. Disabling all MIPS optimizations."
disable mipsfpu
disable mipsdsp
disable mipsdspr2
disable msa
disable mmi
;;
esac
case $cpu in
24kc)
disable mipsfpu
disable mipsdsp
disable mipsdspr2
;;
24kf*)
disable mipsdsp
disable mipsdspr2
;;
24kec|34kc|1004kc)
disable mipsfpu
disable mipsdspr2
;;
24kef*|34kf*|1004kf*)
disable mipsdspr2
;;
74kc)
disable mipsfpu
;;
p5600)
enable mips32r5
check_cflags "-mtune=p5600" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops"
;;
i6400)
enable mips64r6
check_cflags "-mtune=i6400 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
;;
p6600)
enable mips64r6
check_cflags "-mtune=p6600 -mabi=64" && check_cflags "-msched-weight -mload-store-pairs -funroll-loops" && check_ldflags "-mabi=64"
;;
esac
else
# We do not disable anything. Is up to the user to disable the unwanted features.
warn 'generic cpu selected'
fi
elif enabled ppc; then
disable ldbrx
case $(tolower $cpu) in
601|ppc601|powerpc601)
cpuflags="-mcpu=601"
disable altivec
;;
603*|ppc603*|powerpc603*)
cpuflags="-mcpu=603"
disable altivec
;;
604*|ppc604*|powerpc604*)
cpuflags="-mcpu=604"
disable altivec
;;
g3|75*|ppc75*|powerpc75*)
cpuflags="-mcpu=750"
disable altivec
;;
g4|745*|ppc745*|powerpc745*)
cpuflags="-mcpu=7450"
disable vsx
;;
74*|ppc74*|powerpc74*)
cpuflags="-mcpu=7400"
disable vsx
;;
g5|970|ppc970|powerpc970)
cpuflags="-mcpu=970"
disable vsx
;;
power[3-6]*)
cpuflags="-mcpu=$cpu"
disable vsx
;;
power[7-8]*)
cpuflags="-mcpu=$cpu"
;;
cell)
cpuflags="-mcpu=cell"
enable ldbrx
disable vsx
;;
e500mc)
cpuflags="-mcpu=e500mc"
disable altivec
;;
e500v2)
cpuflags="-mcpu=8548 -mhard-float -mfloat-gprs=double"
disable altivec
disable dcbzl
;;
e500)
cpuflags="-mcpu=8540 -mhard-float"
disable altivec
disable dcbzl
;;
esac
elif enabled sparc; then
case $cpu in
cypress|f93[04]|tsc701|sparcl*|supersparc|hypersparc|niagara|v[789])
cpuflags="-mcpu=$cpu"
;;
ultrasparc*|niagara[234])
cpuflags="-mcpu=$cpu"
;;
esac
elif enabled x86; then
case $cpu in
i[345]86|pentium)
cpuflags="-march=$cpu"
disable i686
disable mmx
;;
# targets that do NOT support nopl and conditional mov (cmov)
pentium-mmx|k6|k6-[23]|winchip-c6|winchip2|c3)
cpuflags="-march=$cpu"
disable i686
;;
# targets that do support nopl and conditional mov (cmov)
i686|pentiumpro|pentium[23]|pentium-m|athlon|athlon-tbird|athlon-4|athlon-[mx]p|athlon64*|k8*|opteron*|athlon-fx\
|core*|atom|bonnell|nehalem|westmere|silvermont|sandybridge|ivybridge|haswell|broadwell|skylake*|knl\
|amdfam10|barcelona|b[dt]ver*|znver*)
cpuflags="-march=$cpu"
enable i686
enable fast_cmov
;;
# targets that do support conditional mov but on which it's slow
pentium4|pentium4m|prescott|nocona)
cpuflags="-march=$cpu"
enable i686
disable fast_cmov
;;
esac
fi
if [ "$cpu" != generic ]; then
add_cflags $cpuflags
add_asflags $cpuflags
test "$cc_type" = "$ld_type" && add_ldflags $cpuflags
fi
# compiler sanity check
check_exec <<EOF
int main(void){ return 0; }
EOF
if test "$?" != 0; then
echo "$cc is unable to create an executable file."
if test -z "$cross_prefix" && ! enabled cross_compile ; then
echo "If $cc is a cross-compiler, use the --enable-cross-compile option."
echo "Only do this if you know what cross compiling means."
fi
die "C compiler test failed."
fi
add_cppflags -D_ISOC99_SOURCE
add_cxxflags -D__STDC_CONSTANT_MACROS
check_cxxflags -std=c++11 || check_cxxflags -std=c++0x
# some compilers silently accept -std=c11, so we also need to check that the
# version macro is defined properly
if test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L"; then
add_cflags -std=c11
else
check_cflags -std=c99
fi
check_cc -D_FILE_OFFSET_BITS=64 <<EOF && add_cppflags -D_FILE_OFFSET_BITS=64
#include <stdlib.h>
EOF
check_cc -D_LARGEFILE_SOURCE <<EOF && add_cppflags -D_LARGEFILE_SOURCE
#include <stdlib.h>
EOF
add_host_cppflags -D_ISOC99_SOURCE
check_host_cflags -std=c99
check_host_cflags -Wall
check_host_cflags $host_cflags_speed
check_64bit(){
arch32=$1
arch64=$2
expr=$3
check_code cc "" "int test[2*($expr) - 1]" &&
subarch=$arch64 || subarch=$arch32
}
case "$arch" in
aarch64|alpha|ia64)
spic=$shared
;;
mips)
check_64bit mips mips64 '_MIPS_SIM > 1'
spic=$shared
;;
parisc)
check_64bit parisc parisc64 'sizeof(void *) > 4'
spic=$shared
;;
ppc)
check_64bit ppc ppc64 'sizeof(void *) > 4'
spic=$shared
;;
s390)
check_64bit s390 s390x 'sizeof(void *) > 4'
spic=$shared
;;
sparc)
check_64bit sparc sparc64 'sizeof(void *) > 4'
spic=$shared
;;
x86)
check_64bit x86_32 x86_64 'sizeof(void *) > 4'
# Treat x32 as x64 for now. Note it also needs spic=$shared
test "$subarch" = "x86_32" && check_cpp_condition stddef.h 'defined(__x86_64__)' &&
subarch=x86_64
if test "$subarch" = "x86_64"; then
spic=$shared
fi
;;
ppc)
check_cc <<EOF && subarch="ppc64"
int test[(int)sizeof(char*) - 7];
EOF
;;
esac
enable $subarch
enabled spic && enable_weak pic
enabled x86_64 && objformat=elf64 || objformat="elf32"
# OS specific
case $target_os in
aix)
SHFLAGS=-shared
add_cppflags '-I\$(SRC_PATH)/compat/aix'
enabled shared && add_ldflags -Wl,-brtl
;;
android)
disable symver
enable section_data_rel_ro
SLIB_INSTALL_NAME='$(SLIBNAME)'
SLIB_INSTALL_LINKS=
SHFLAGS='-shared -Wl,-soname,$(SLIBNAME)'
;;
haiku)
prefix_default="/boot/common"
network_extralibs="-lnetwork"
host_extralibs=
;;
sunos)
SHFLAGS='-shared -Wl,-h,$$(@F)'
enabled x86 && SHFLAGS="-mimpure-text $SHFLAGS"
network_extralibs="-lsocket -lnsl"
add_cppflags -D__EXTENSIONS__
# When using suncc to build, the Solaris linker will mark
# an executable with each instruction set encountered by
# the Solaris assembler. As our libraries contain their own
# guards for processor-specific code, instead suppress
# generation of the HWCAPS ELF section on Solaris x86 only.
enabled_all suncc x86 &&
echo "hwcap_1 = OVERRIDE;" > mapfile &&
add_ldflags -Wl,-M,mapfile
nm_default='nm -P -g'
version_script='-M'
VERSION_SCRIPT_POSTPROCESS_CMD='perl $(SRC_PATH)/compat/solaris/make_sunver.pl - $(OBJS)'
;;
netbsd)
disable symver
oss_indev_extralibs="-lossaudio"
oss_outdev_extralibs="-lossaudio"
enabled gcc || check_ldflags -Wl,-zmuldefs
;;
openbsd|bitrig)
disable symver
SHFLAGS='-shared'
SLIB_INSTALL_NAME='$(SLIBNAME).$(LIBMAJOR).$(LIBMINOR)'
SLIB_INSTALL_LINKS=
oss_indev_extralibs="-lossaudio"
oss_outdev_extralibs="-lossaudio"
;;
dragonfly)
disable symver
;;
freebsd)
;;
bsd/os)
add_extralibs -lpoll -lgnugetopt
strip="strip -d"
;;
darwin)
enabled ppc && add_asflags -force_cpusubtype_ALL
install_name_dir_default='$(SHLIBDIR)'
SHFLAGS='-dynamiclib -Wl,-single_module -Wl,-install_name,$(INSTALL_NAME_DIR)/$(SLIBNAME_WITH_MAJOR),-current_version,$(LIBVERSION),-compatibility_version,$(LIBMAJOR)'
enabled x86_32 && append SHFLAGS -Wl,-read_only_relocs,suppress
strip="${strip} -x"
add_ldflags -Wl,-dynamic,-search_paths_first
SLIBSUF=".dylib"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
objformat="macho"
enabled x86_64 && objformat="macho64" || objformat="macho32"
enabled_any pic shared x86_64 ||
{ check_cflags -mdynamic-no-pic && add_asflags -mdynamic-no-pic; }
check_header dispatch/dispatch.h &&
add_cppflags '-I\$(SRC_PATH)/compat/dispatch_semaphore'
version_script='-exported_symbols_list'
VERSION_SCRIPT_POSTPROCESS_CMD='tr " " "\n" | sed -n /global:/,/local:/p | grep ";" | tr ";" "\n" | sed -E "s/(.+)/_\1/g" | sed -E "s/(.+[^*])$$$$/\1*/"'
;;
msys*)
die "Native MSYS builds are discouraged, please use the MINGW environment."
;;
mingw32*|mingw64*)
if test $target_os = "mingw32ce"; then
disable network
else
target_os=mingw32
fi
LIBTARGET=i386
if enabled x86_64; then
LIBTARGET="i386:x86-64"
elif enabled arm; then
LIBTARGET=arm-wince
fi
enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
enabled x86_32 && check_ldflags -Wl,--large-address-aware
shlibdir_default="$bindir_default"
SLIBPREF=""
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
dlltool="${cross_prefix}dlltool"
if check_cmd lib.exe -list; then
SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
if enabled x86_64; then
LIBTARGET=x64
fi
elif check_cmd $dlltool --version; then
SLIB_EXTRA_CMD=-'sed -e "s/ @[^ ]*//" $$(@:$(SLIBSUF)=.orig.def) > $$(@:$(SLIBSUF)=.def); $(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
fi
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS=
SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
enabled x86_64 && objformat="win64" || objformat="win32"
ranlib=:
enable dos_paths
check_ldflags -Wl,--nxcompat,--dynamicbase
# Lets work around some stupidity in binutils.
# ld will strip relocations from executables even though we need them
# for dynamicbase (ASLR). Using -pie does retain the reloc section
# however ld then forgets what the entry point should be (oops) so we
# have to manually (re)set it.
if enabled x86_32; then
disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
elif enabled x86_64; then
disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
check_ldflags -Wl,--high-entropy-va # binutils 2.25
# Set image base >4GB for extra entropy with HEASLR
add_ldexeflags -Wl,--image-base,0x140000000
append SHFLAGS -Wl,--image-base,0x180000000
fi
;;
win32|win64)
disable symver
Add support for building shared libraries with MSVC
This requires the makedef perl script by Derek, from the
c89-to-c99 repo. That scripts produces a .def file, listing
the symbols to be exported, based on the gcc version scripts
and the built object files.
To properly load non-function symbols from DLL files, the
data symbol declarations need to have the attribute
__declspec(dllimport) when building the calling code. (On mingw,
the linker can fix this up automatically, which is why it has not
been an issue so far. If this attribute is omitted, linking
actually succeeds, but reads from the table will not produce the
desired results at runtime.)
MSVC seems to manage to link DLLs (and run properly) even if
this attribute is present while building the library itself
(which normally isn't recommended) - other object files in the
same library manage to link to the symbol (with a small warning
at link time, like "warning LNK4049: locally defined symbol
_avpriv_mpa_bitrate_tab imported" - it doesn't seem to be possible
to squelch this warning), and the definition of the tables
themselves produce a warning that can be squelched ("warning C4273:
'avpriv_mpa_bitrate_tab' : inconsistent dll linkage, see previous
definition of 'avpriv_mpa_bitrate_tab').
In this setup, mingw isn't able to link object files that refer to
data symbols with __declspec(dllimport) without those symbols
actually being linked via a DLL (linking avcodec.dll ends up with
errors like "undefined reference to `__imp__avpriv_mpa_freq_tab'").
The dllimport declspec isn't needed at all in mingw, so we simply
choose not to declare it for other compilers than MSVC that requires
it. (If ICL support later requires it, the condition can be extended
later to include both of them.)
This also implies that code that is built to link to a certain
library as a DLL can't link to the same library as a static library.
Therefore, we only allow building either static or shared but not
both at the same time. (That is, static libraries as such can be,
and actually are, built - this is used for linking the test tools to
internal symbols in the libraries - but e.g. libavformat built to
link to libavcodec as a DLL cannot link statically to libavcodec.)
Also, linking to DLLs is slightly different from linking to shared
libraries on other platforms. DLLs use a thing called import
libraries, which is basically a stub library allowing the linker
to know which symbols exist in the DLL and what name the DLL will
have at runtime.
In mingw/gcc, the import library is usually named libfoo.dll.a,
which goes next to a static library named libfoo.a. This allows
gcc to pick the dynamic one, if available, from the normal -lfoo
switches, just as it does for libfoo.a vs libfoo.so on Unix. On
MSVC however, you need to literally specify the name of the import
library instead of the static library.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
if enabled shared; then
# Link to the import library instead of the normal static library
# for shared libs.
LD_LIB='%.lib'
# Cannot build both shared and static libs with MSVC or icl.
Add support for building shared libraries with MSVC
This requires the makedef perl script by Derek, from the
c89-to-c99 repo. That scripts produces a .def file, listing
the symbols to be exported, based on the gcc version scripts
and the built object files.
To properly load non-function symbols from DLL files, the
data symbol declarations need to have the attribute
__declspec(dllimport) when building the calling code. (On mingw,
the linker can fix this up automatically, which is why it has not
been an issue so far. If this attribute is omitted, linking
actually succeeds, but reads from the table will not produce the
desired results at runtime.)
MSVC seems to manage to link DLLs (and run properly) even if
this attribute is present while building the library itself
(which normally isn't recommended) - other object files in the
same library manage to link to the symbol (with a small warning
at link time, like "warning LNK4049: locally defined symbol
_avpriv_mpa_bitrate_tab imported" - it doesn't seem to be possible
to squelch this warning), and the definition of the tables
themselves produce a warning that can be squelched ("warning C4273:
'avpriv_mpa_bitrate_tab' : inconsistent dll linkage, see previous
definition of 'avpriv_mpa_bitrate_tab').
In this setup, mingw isn't able to link object files that refer to
data symbols with __declspec(dllimport) without those symbols
actually being linked via a DLL (linking avcodec.dll ends up with
errors like "undefined reference to `__imp__avpriv_mpa_freq_tab'").
The dllimport declspec isn't needed at all in mingw, so we simply
choose not to declare it for other compilers than MSVC that requires
it. (If ICL support later requires it, the condition can be extended
later to include both of them.)
This also implies that code that is built to link to a certain
library as a DLL can't link to the same library as a static library.
Therefore, we only allow building either static or shared but not
both at the same time. (That is, static libraries as such can be,
and actually are, built - this is used for linking the test tools to
internal symbols in the libraries - but e.g. libavformat built to
link to libavcodec as a DLL cannot link statically to libavcodec.)
Also, linking to DLLs is slightly different from linking to shared
libraries on other platforms. DLLs use a thing called import
libraries, which is basically a stub library allowing the linker
to know which symbols exist in the DLL and what name the DLL will
have at runtime.
In mingw/gcc, the import library is usually named libfoo.dll.a,
which goes next to a static library named libfoo.a. This allows
gcc to pick the dynamic one, if available, from the normal -lfoo
switches, just as it does for libfoo.a vs libfoo.so on Unix. On
MSVC however, you need to literally specify the name of the import
library instead of the static library.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
disable static
fi
enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
Add support for building shared libraries with MSVC
This requires the makedef perl script by Derek, from the
c89-to-c99 repo. That scripts produces a .def file, listing
the symbols to be exported, based on the gcc version scripts
and the built object files.
To properly load non-function symbols from DLL files, the
data symbol declarations need to have the attribute
__declspec(dllimport) when building the calling code. (On mingw,
the linker can fix this up automatically, which is why it has not
been an issue so far. If this attribute is omitted, linking
actually succeeds, but reads from the table will not produce the
desired results at runtime.)
MSVC seems to manage to link DLLs (and run properly) even if
this attribute is present while building the library itself
(which normally isn't recommended) - other object files in the
same library manage to link to the symbol (with a small warning
at link time, like "warning LNK4049: locally defined symbol
_avpriv_mpa_bitrate_tab imported" - it doesn't seem to be possible
to squelch this warning), and the definition of the tables
themselves produce a warning that can be squelched ("warning C4273:
'avpriv_mpa_bitrate_tab' : inconsistent dll linkage, see previous
definition of 'avpriv_mpa_bitrate_tab').
In this setup, mingw isn't able to link object files that refer to
data symbols with __declspec(dllimport) without those symbols
actually being linked via a DLL (linking avcodec.dll ends up with
errors like "undefined reference to `__imp__avpriv_mpa_freq_tab'").
The dllimport declspec isn't needed at all in mingw, so we simply
choose not to declare it for other compilers than MSVC that requires
it. (If ICL support later requires it, the condition can be extended
later to include both of them.)
This also implies that code that is built to link to a certain
library as a DLL can't link to the same library as a static library.
Therefore, we only allow building either static or shared but not
both at the same time. (That is, static libraries as such can be,
and actually are, built - this is used for linking the test tools to
internal symbols in the libraries - but e.g. libavformat built to
link to libavcodec as a DLL cannot link statically to libavcodec.)
Also, linking to DLLs is slightly different from linking to shared
libraries on other platforms. DLLs use a thing called import
libraries, which is basically a stub library allowing the linker
to know which symbols exist in the DLL and what name the DLL will
have at runtime.
In mingw/gcc, the import library is usually named libfoo.dll.a,
which goes next to a static library named libfoo.a. This allows
gcc to pick the dynamic one, if available, from the normal -lfoo
switches, just as it does for libfoo.a vs libfoo.so on Unix. On
MSVC however, you need to literally specify the name of the import
library instead of the static library.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
shlibdir_default="$bindir_default"
SLIBPREF=""
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
SLIB_CREATE_DEF_CMD='$(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
Add support for building shared libraries with MSVC
This requires the makedef perl script by Derek, from the
c89-to-c99 repo. That scripts produces a .def file, listing
the symbols to be exported, based on the gcc version scripts
and the built object files.
To properly load non-function symbols from DLL files, the
data symbol declarations need to have the attribute
__declspec(dllimport) when building the calling code. (On mingw,
the linker can fix this up automatically, which is why it has not
been an issue so far. If this attribute is omitted, linking
actually succeeds, but reads from the table will not produce the
desired results at runtime.)
MSVC seems to manage to link DLLs (and run properly) even if
this attribute is present while building the library itself
(which normally isn't recommended) - other object files in the
same library manage to link to the symbol (with a small warning
at link time, like "warning LNK4049: locally defined symbol
_avpriv_mpa_bitrate_tab imported" - it doesn't seem to be possible
to squelch this warning), and the definition of the tables
themselves produce a warning that can be squelched ("warning C4273:
'avpriv_mpa_bitrate_tab' : inconsistent dll linkage, see previous
definition of 'avpriv_mpa_bitrate_tab').
In this setup, mingw isn't able to link object files that refer to
data symbols with __declspec(dllimport) without those symbols
actually being linked via a DLL (linking avcodec.dll ends up with
errors like "undefined reference to `__imp__avpriv_mpa_freq_tab'").
The dllimport declspec isn't needed at all in mingw, so we simply
choose not to declare it for other compilers than MSVC that requires
it. (If ICL support later requires it, the condition can be extended
later to include both of them.)
This also implies that code that is built to link to a certain
library as a DLL can't link to the same library as a static library.
Therefore, we only allow building either static or shared but not
both at the same time. (That is, static libraries as such can be,
and actually are, built - this is used for linking the test tools to
internal symbols in the libraries - but e.g. libavformat built to
link to libavcodec as a DLL cannot link statically to libavcodec.)
Also, linking to DLLs is slightly different from linking to shared
libraries on other platforms. DLLs use a thing called import
libraries, which is basically a stub library allowing the linker
to know which symbols exist in the DLL and what name the DLL will
have at runtime.
In mingw/gcc, the import library is usually named libfoo.dll.a,
which goes next to a static library named libfoo.a. This allows
gcc to pick the dynamic one, if available, from the normal -lfoo
switches, just as it does for libfoo.a vs libfoo.so on Unix. On
MSVC however, you need to literally specify the name of the import
library instead of the static library.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS=
SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
SLIB_INSTALL_EXTRA_LIB='$(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
SHFLAGS='-dll -def:$$(@:$(SLIBSUF)=.def) -implib:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
enabled x86_64 && objformat="win64" || objformat="win32"
ranlib=:
enable dos_paths
;;
cygwin*)
target_os=cygwin
shlibdir_default="$bindir_default"
SLIBPREF="cyg"
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS=
SLIB_INSTALL_EXTRA_LIB='lib$(FULLNAME).dll.a'
SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(FULLNAME).dll.a'
enabled x86_64 && objformat="win64" || objformat="win32"
enable dos_paths
enabled shared && ! enabled small && check_cmd $windres --version && enable gnu_windres
add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
;;
*-dos|freedos|opendos)
network_extralibs="-lsocket"
objformat="coff"
enable dos_paths
add_cppflags -U__STRICT_ANSI__
;;
linux)
enable dv1394
enable section_data_rel_ro
;;
irix*)
target_os=irix
ranlib="echo ignoring ranlib"
;;
os/2*)
strip="lxlite -CS"
objformat="aout"
add_cppflags -D_GNU_SOURCE
add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
SHFLAGS='$(SUBDIR)$(NAME).def -Zdll -Zomf'
LIBSUF="_s.a"
SLIBPREF=""
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(shell echo $(FULLNAME) | cut -c1-6)$(LIBMAJOR)$(SLIBSUF)'
SLIB_CREATE_DEF_CMD='echo LIBRARY $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=) INITINSTANCE TERMINSTANCE > $(SUBDIR)$(FULLNAME).def; \
echo CODE PRELOAD MOVEABLE DISCARDABLE >> $(SUBDIR)$(FULLNAME).def; \
echo DATA PRELOAD MOVEABLE MULTIPLE NONSHARED >> $(SUBDIR)$(FULLNAME).def; \
echo EXPORTS >> $(SUBDIR)$(FULLNAME).def; \
emxexp $(OBJS) >> $(SUBDIR)$(FULLNAME).def'
SLIB_EXTRA_CMD='emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.a $(SUBDIR)$(FULLNAME).def; \
emximp -o $(SUBDIR)$(LIBPREF)$(FULLNAME)_dll.lib $(SUBDIR)$(FULLNAME).def;'
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS=
SLIB_INSTALL_EXTRA_LIB='$(LIBPREF)$(FULLNAME)_dll.a $(LIBPREF)$(FULLNAME)_dll.lib'
enable dos_paths
enable_weak os2threads
;;
gnu/kfreebsd)
add_cppflags -D_BSD_SOURCE
;;
gnu)
;;
qnx)
add_cppflags -D_QNX_SOURCE
network_extralibs="-lsocket"
;;
symbian)
SLIBSUF=".dll"
enable dos_paths
add_cflags --include=$sysinclude/gcce/gcce.h -fvisibility=default
add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
add_ldflags -Wl,--target1-abs,--no-undefined \
-Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
-Wl,--entry=_E32Startup -Wl,-u,_E32Startup
add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
-l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
-l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
;;
osf1)
add_cppflags -D_OSF_SOURCE -D_POSIX_PII -D_REENTRANT
;;
minix)
;;
none)
;;
*)
die "Unknown OS '$target_os'."
;;
esac
# test if creating links works
link_dest=$(mktemp -u $TMPDIR/dest_XXXXXXXX)
link_name=$(mktemp -u $TMPDIR/name_XXXXXXXX)
mkdir "$link_dest"
$ln_s "$link_dest" "$link_name"
touch "$link_dest/test_file"
if [ "$source_path" != "." ] && ([ ! -d src ] || [ -L src ]) && [ -e "$link_name/test_file" ]; then
# create link to source path
[ -e src ] && rm src
$ln_s "$source_path" src
source_link=src
else
# creating directory links doesn't work
# fall back to using the full source path
source_link="$source_path"
fi
# cleanup
rm -r "$link_dest"
rm -r "$link_name"
# determine libc flavour
probe_libc(){
pfx=$1
pfx_no_=${pfx%_}
# uclibc defines __GLIBC__, so it needs to be checked before glibc.
if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
eval ${pfx}libc_type=uclibc
add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
eval ${pfx}libc_type=glibc
add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
# MinGW headers can be installed on Cygwin, so check for newlib first.
elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
eval ${pfx}libc_type=newlib
add_${pfx}cppflags -U__STRICT_ANSI__ -D_XOPEN_SOURCE=600
# MinGW64 is backwards compatible with MinGW32, so check for it first.
elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
eval ${pfx}libc_type=mingw64
if check_${pfx}cpp_condition _mingw.h "__MINGW64_VERSION_MAJOR < 3"; then
add_compat msvcrt/snprintf.o
add_cflags "-include $source_path/compat/msvcrt/snprintf.h"
fi
add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
eval test \$${pfx_no_}cc_type = "gcc" &&
add_${pfx}cppflags -D__printf__=__gnu_printf__
elif check_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
eval ${pfx}libc_type=mingw32
check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
(__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
die "ERROR: MinGW32 runtime version must be >= 3.15."
add_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
check_${pfx}cpp_condition _mingw.h "defined(_WIN32_WINNT) && _WIN32_WINNT >= 0x0502" ||
add_${pfx}cppflags -D_WIN32_WINNT=0x0502
check_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
eval test \$${pfx_no_}cc_type = "gcc" &&
add_${pfx}cppflags -D__printf__=__gnu_printf__
elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
eval ${pfx}libc_type=msvcrt
if check_${pfx}cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION < 14"; then
if [ "$pfx" = host_ ]; then
add_host_cppflags -Dsnprintf=_snprintf
else
add_compat strtod.o strtod=avpriv_strtod
add_compat msvcrt/snprintf.o snprintf=avpriv_snprintf \
_snprintf=avpriv_snprintf \
vsnprintf=avpriv_vsnprintf
fi
fi
add_${pfx}cppflags -D_USE_MATH_DEFINES -D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS
# The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
# 0x601 by default unless something else is set by the user.
# This can easily lead to us detecting functions only present
# in such new versions and producing binaries requiring windows 7.0.
# Therefore explicitly set the default to XP unless the user has
# set something else on the command line.
# Don't do this if WINAPI_FAMILY is set and is set to a non-desktop
# family. For these cases, configure is free to use any functions
# found in the SDK headers by default. (Alternatively, we could force
# _WIN32_WINNT to 0x0602 in that case.)
check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
{ check_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0502; }
#ifdef WINAPI_FAMILY
#include <winapifamily.h>
#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#error not desktop
#endif
#endif
EOF
if [ "$pfx" = "" ]; then
check_func strtoll || add_cflags -Dstrtoll=_strtoi64
check_func strtoull || add_cflags -Dstrtoull=_strtoui64
fi
elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
eval ${pfx}libc_type=klibc
elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
eval ${pfx}libc_type=bionic
elif check_${pfx}cpp_condition sys/brand.h "defined LABELED_BRAND_NAME"; then
eval ${pfx}libc_type=solaris
add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
fi
check_${pfx}cc <<EOF
#include <time.h>
void *v = localtime_r;
EOF
test "$?" != 0 && check_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
#include <time.h>
void *v = localtime_r;
EOF
}
probe_libc
test -n "$libc_type" && enable libc_$libc_type
probe_libc host_
test -n "$host_libc_type" && enable host_libc_$host_libc_type
case $libc_type in
bionic)
add_compat strtod.o strtod=avpriv_strtod
;;
esac
# hacks for compiler/libc/os combinations
if enabled_all tms470 libc_glibc; then
CPPFLAGS="-I${source_path}/compat/tms470 ${CPPFLAGS}"
add_cppflags -D__USER_LABEL_PREFIX__=
add_cppflags -D__builtin_memset=memset
add_cppflags -D__gnuc_va_list=va_list -D_VA_LIST_DEFINED
add_cflags -pds=48 # incompatible redefinition of macro
fi
if enabled_all ccc libc_glibc; then
add_ldflags -Wl,-z,now # calls to libots crash without this
fi
check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
add_cppflags '-I\$(SRC_PATH)/compat/float'
esc(){
echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
}
echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
check_cpp_condition stdlib.h "defined(__PIC__) || defined(__pic__) || defined(PIC)" && enable_weak pic
set_default libdir
: ${shlibdir_default:="$libdir"}
: ${pkgconfigdir_default:="$libdir/pkgconfig"}
set_default $PATHS_LIST
set_default nm
# we need to build at least one lib type
if ! enabled_any static shared; then
cat <<EOF
At least one library type must be built.
Specify --enable-static to build the static libraries or --enable-shared to
build the shared libraries as well. To only build the shared libraries specify
--disable-static in addition to --enable-shared.
EOF
exit 1
fi
disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
enable_weak_pic() {
disabled pic && return
enable pic
add_cppflags -DPIC
case "$target_os" in
mingw*|cygwin*)
;;
*)
add_cflags -fPIC
;;
esac
add_asflags -fPIC
}
enabled pic && enable_weak_pic
check_cc <<EOF || die "Symbol mangling check failed."
int ff_extern;
EOF
sym=$($nm $TMPO | awk '/ff_extern/{ print substr($0, match($0, /[^ \t]*ff_extern/)) }')
extern_prefix=${sym%%ff_extern*}
check_cc <<EOF && enable_weak inline_asm
void foo(void) { __asm__ volatile ("" ::); }
EOF
_restrict=
for restrict_keyword in restrict __restrict__ __restrict; do
check_cc <<EOF && _restrict=$restrict_keyword && break
void foo(char * $restrict_keyword p);
EOF
done
check_cc <<EOF && enable pragma_deprecated
void foo(void) { _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"") }
EOF
check_cc <<EOF && enable attribute_packed
struct { int x; } __attribute__((packed)) x;
EOF
check_cc <<EOF && enable attribute_may_alias
union { int x; } __attribute__((may_alias)) x;
EOF
check_cc <<EOF || die "endian test failed"
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
EOF
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
if ! enabled ppc64 || enabled bigendian; then
disable vsx
fi
check_gas() {
log "check_gas using '$as' as AS"
# :vararg is used on aarch64, arm and ppc altivec
check_as <<EOF || return 1
.macro m n, y:vararg=0
\n: .int \y
.endm
m x
EOF
# .altmacro is only used in arm asm
! enabled arm || check_as <<EOF || return 1
.altmacro
EOF
enable gnu_as
return 0
}
if enabled_any arm aarch64 || enabled_all ppc altivec && enabled asm; then
nogas=:
enabled_any arm aarch64 && nogas=die
enabled_all ppc altivec && [ $target_os_default != aix ] && nogas=warn
as_noop=-v
case $as_type in
arm*) gaspp_as_type=armasm; as_noop=-h ;;
gcc) gaspp_as_type=gas ;;
*) gaspp_as_type=$as_type ;;
esac
[ $target_os = "darwin" ] && gaspp_as_type="apple-$gaspp_as_type"
test "${as#*gas-preprocessor.pl}" != "$as" ||
check_cmd gas-preprocessor.pl -arch $arch -as-type $gaspp_as_type -- ${as:=$cc} $as_noop &&
gas="${gas:=gas-preprocessor.pl} -arch $arch -as-type $gaspp_as_type -- ${as:=$cc}"
if ! check_gas ; then
as=${gas:=$as}
check_gas || \
$nogas "GNU assembler not found, install/update gas-preprocessor"
fi
check_as <<EOF && enable as_func
.func test
.endfunc
EOF
fi
check_inline_asm inline_asm_labels '"1:\n"'
check_inline_asm inline_asm_nonlocal_labels '"Label:\n"'
if enabled aarch64; then
enabled armv8 && check_insn armv8 'prfm pldl1strm, [x0]'
# internal assembler in clang 3.3 does not support this instruction
enabled neon && check_insn neon 'ext v0.8B, v0.8B, v1.8B, #1'
enabled vfp && check_insn vfp 'fmadd d0, d0, d1, d2'
map 'enabled_any ${v}_external ${v}_inline || disable $v' $ARCH_EXT_LIST_ARM
elif enabled alpha; then
check_cflags -mieee
elif enabled arm; then
enabled msvc && check_cpp_condition stddef.h "defined _M_ARMT" && enable thumb
check_cpp_condition stddef.h "defined __thumb__" && check_cc <<EOF && enable_weak thumb
float func(float a, float b){ return a+b; }
EOF
enabled thumb && check_cflags -mthumb || check_cflags -marm
if check_cpp_condition stddef.h "defined __ARM_PCS_VFP"; then
enable vfp_args
elif check_cpp_condition stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
enable vfp_args
elif ! check_cpp_condition stddef.h "defined __ARM_PCS || defined __SOFTFP__" && [ $target_os != darwin ]; then
case "${cross_prefix:-$cc}" in
*hardfloat*) enable vfp_args; fpabi=vfp ;;
*) check_ld "cc" <<EOF && enable vfp_args && fpabi=vfp || fpabi=soft ;;
__asm__ (".eabi_attribute 28, 1");
int main(void) { return 0; }
EOF
esac
warn "Compiler does not indicate floating-point ABI, guessing $fpabi."
fi
enabled armv5te && check_insn armv5te 'qadd r0, r0, r0'
enabled armv6 && check_insn armv6 'sadd16 r0, r0, r0'
enabled armv6t2 && check_insn armv6t2 'movt r0, #0'
enabled neon && check_insn neon 'vadd.i16 q0, q0, q0'
enabled vfp && check_insn vfp 'fadds s0, s0, s0'
enabled vfpv3 && check_insn vfpv3 'vmov.f32 s0, #1.0'
enabled setend && check_insn setend 'setend be'
[ $target_os = linux ] || [ $target_os = android ] ||
map 'enabled_any ${v}_external ${v}_inline || disable $v' \
$ARCH_EXT_LIST_ARM
check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
check_as <<EOF && enable as_dn_directive
ra .dn d0.i16
.unreq ra
EOF
check_as <<EOF && enable as_fpu_directive
.fpu neon
EOF
# llvm's integrated assembler supports .object_arch from llvm 3.5
[ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
check_as <<EOF && enable as_object_arch
.object_arch armv4
EOF
[ $target_os != win32 ] && enabled_all armv6t2 shared !pic && enable_weak_pic
elif enabled mips; then
enabled loongson2 && check_inline_asm loongson2 '"dmult.g $8, $9, $10"'
enabled loongson3 && check_inline_asm loongson3 '"gsldxc1 $f0, 0($2, $3)"'
enabled mmi && check_inline_asm mmi '"punpcklhw $f0, $f0, $f0"'
# Enable minimum ISA based on selected options
if enabled mips64; then
enabled mips64r6 && check_inline_asm_flags mips64r6 '"dlsa $0, $0, $0, 1"' '-mips64r6'
enabled mips64r2 && check_inline_asm_flags mips64r2 '"dext $0, $0, 0, 1"' '-mips64r2'
disabled mips64r6 && disabled mips64r2 && check_inline_asm_flags mips64r1 '"daddi $0, $0, 0"' '-mips64'
else
enabled mips32r6 && check_inline_asm_flags mips32r6 '"aui $0, $0, 0"' '-mips32r6'
enabled mips32r5 && check_inline_asm_flags mips32r5 '"eretnc"' '-mips32r5'
enabled mips32r2 && check_inline_asm_flags mips32r2 '"ext $0, $0, 0, 1"' '-mips32r2'
disabled mips32r6 && disabled mips32r5 && disabled mips32r2 && check_inline_asm_flags mips32r1 '"addi $0, $0, 0"' '-mips32'
fi
enabled mipsfpu && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f2"' '-mhard-float'
enabled mipsfpu && (enabled mips32r5 || enabled mips32r6 || enabled mips64r6) && check_inline_asm_flags mipsfpu '"cvt.d.l $f0, $f1"' '-mfp64'
enabled mipsfpu && enabled msa && check_inline_asm_flags msa '"addvi.b $w0, $w1, 1"' '-mmsa' && check_header msa.h || disable msa
enabled mipsdsp && check_inline_asm_flags mipsdsp '"addu.qb $t0, $t1, $t2"' '-mdsp'
enabled mipsdspr2 && check_inline_asm_flags mipsdspr2 '"absq_s.qb $t0, $t1"' '-mdspr2'
if enabled bigendian && enabled msa; then
disable msa
fi
elif enabled parisc; then
if enabled gcc; then
case $($cc -dumpversion) in
4.[3-9].*) check_cflags -fno-optimize-sibling-calls ;;
esac
fi
elif enabled ppc; then
enable local_aligned_8 local_aligned_16 local_aligned_32
check_inline_asm dcbzl '"dcbzl 0, %0" :: "r"(0)'
check_inline_asm ibm_asm '"add 0, 0, 0"'
check_inline_asm ppc4xx '"maclhw r10, r11, r12"'
check_inline_asm xform_asm '"lwzx %1, %y0" :: "Z"(*(int*)0), "r"(0)'
# AltiVec flags: The FSF version of GCC differs from the Apple version
if enabled altivec; then
check_cflags -maltivec -mabi=altivec &&
{ check_header altivec.h && inc_altivec_h="#include <altivec.h>" ; } ||
check_cflags -faltivec
# check if our compiler supports Motorola AltiVec C API
check_cc <<EOF || disable altivec
$inc_altivec_h
int main(void) {
vector signed int v1 = (vector signed int) { 0 };
vector signed int v2 = (vector signed int) { 1 };
v1 = vec_add(v1, v2);
return 0;
}
EOF
enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
fi
if enabled vsx; then
check_cflags -mvsx &&
check_builtin vec_vsx_ld "altivec.h" "__builtin_vec_vsx_ld" || disable vsx
fi
if enabled power8; then
check_cpp_condition "altivec.h" "defined(_ARCH_PWR8)" || disable power8
fi
elif enabled x86; then
check_builtin rdtsc intrin.h "__rdtsc()"
check_builtin mm_empty mmintrin.h "_mm_empty()"
enable local_aligned_8 local_aligned_16 local_aligned_32
# check whether EBP is available on x86
# As 'i' is stored on the stack, this program will crash
# if the base pointer is used to access it because the
# base pointer is cleared in the inline assembly code.
check_exec_crash <<EOF && enable ebp_available
volatile int i=0;
__asm__ volatile ("xorl %%ebp, %%ebp" ::: "%ebp");
return i;
EOF
# check whether EBX is available on x86
check_inline_asm ebx_available '""::"b"(0)' &&
check_inline_asm ebx_available '"":::"%ebx"'
# check whether xmm clobbers are supported
check_inline_asm xmm_clobbers '"":::"%xmm0"'
check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test, %eax"' ||
check_inline_asm inline_asm_direct_symbol_refs '"movl '$extern_prefix'test(%rip), %eax"'
# check whether binutils is new enough to compile SSSE3/MMXEXT
enabled ssse3 && check_inline_asm ssse3_inline '"pabsw %xmm0, %xmm0"'
enabled mmxext && check_inline_asm mmxext_inline '"pmaxub %mm0, %mm1"'
probe_x86asm(){
x86asmexe_probe=$1
if check_cmd $x86asmexe_probe -v; then
x86asmexe=$x86asmexe_probe
x86asm_type=nasm
x86asm_debug="-g -F dwarf"
elif check_cmd $x86asmexe_probe --version; then
x86asmexe=$x86asmexe_probe
x86asm_type=yasm
x86asm_debug="-g dwarf2"
fi
check_x86asm "movbe ecx, [5]" && enable x86asm
}
if ! disabled_any asm mmx x86asm; then
disable x86asm
for program in $x86asmexe nasm yasm; do
probe_x86asm $program && break
done
disabled x86asm && die "nasm/yasm not found or too old. Use --disable-x86asm for a crippled build."
test $x86asm_type = 'nasm' && X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
test $x86asm_type = 'yasm' && X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
X86ASMFLAGS="-f $objformat"
enabled pic && append X86ASMFLAGS "-DPIC"
test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
case "$objformat" in
elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
esac
check_x86asm "vextracti128 xmm0, ymm0, 0" || disable avx2_external
check_x86asm "vpmacsdd xmm0, xmm1, xmm2, xmm3" || disable xop_external
check_x86asm "vfmaddps ymm0, ymm1, ymm2, ymm3" || disable fma4_external
check_x86asm "CPU amdnop" || disable cpunop
fi
case "$cpu" in
athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
disable fast_clz
;;
esac
fi
check_code cc arm_neon.h "int16x8_t test = vdupq_n_s16(0)" && enable intrinsics_neon
check_ldflags -Wl,--as-needed
check_ldflags -Wl,-z,noexecstack
if check_func dlopen && check_func dlsym; then
ldl=
elif check_func dlopen -ldl && check_func dlsym -ldl; then
ldl=-ldl
fi
avisynth_demuxer_extralibs='$ldl'
cuda_extralibs='$ldl'
decklink_outdev_extralibs="$decklink_outdev_extralibs $ldl"
decklink_indev_extralibs="$decklink_indev_extralibs $ldl"
libndi_newtek_outdev_extralibs="$libndi_newtek_outdev_extralibs $ldl"
libndi_newtek_indev_extralibs="$libndi_newtek_indev_extralibs $ldl"
frei0r_filter_extralibs='$ldl'
frei0r_src_filter_extralibs='$ldl'
ladspa_filter_extralibs='$ldl'
nvenc_extralibs='$ldl'
coreimage_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
coreimagesrc_filter_extralibs="-framework QuartzCore -framework AppKit -framework OpenGL"
if ! disabled network; then
check_func getaddrinfo $network_extralibs
check_func inet_aton $network_extralibs
check_type netdb.h "struct addrinfo"
check_type netinet/in.h "struct group_source_req" -D_BSD_SOURCE
check_type netinet/in.h "struct ip_mreq_source" -D_BSD_SOURCE
check_type netinet/in.h "struct ipv6_mreq" -D_DARWIN_C_SOURCE
check_type poll.h "struct pollfd"
check_type netinet/sctp.h "struct sctp_event_subscribe"
check_struct "sys/socket.h" "struct msghdr" msg_flags
check_struct "sys/types.h sys/socket.h" "struct sockaddr" sa_len
check_type netinet/in.h "struct sockaddr_in6"
check_type "sys/types.h sys/socket.h" "struct sockaddr_storage"
check_type "sys/types.h sys/socket.h" socklen_t
# Prefer arpa/inet.h over winsock2
if check_header arpa/inet.h ; then
check_func closesocket
elif check_header winsock2.h ; then
check_func_headers winsock2.h closesocket -lws2 &&
network_extralibs="-lws2" ||
{ check_func_headers winsock2.h closesocket -lws2_32 &&
network_extralibs="-lws2_32"; } || disable winsock2_h network
check_func_headers ws2tcpip.h getaddrinfo $network_extralibs
check_type ws2tcpip.h socklen_t
check_type ws2tcpip.h "struct addrinfo"
check_type ws2tcpip.h "struct group_source_req"
check_type ws2tcpip.h "struct ip_mreq_source"
check_type ws2tcpip.h "struct ipv6_mreq"
check_type winsock2.h "struct pollfd"
check_struct winsock2.h "struct sockaddr" sa_len
check_type ws2tcpip.h "struct sockaddr_in6"
check_type ws2tcpip.h "struct sockaddr_storage"
else
disable network
fi
fi
check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
check_builtin MemoryBarrier windows.h "MemoryBarrier()"
check_builtin sarestart signal.h "SA_RESTART"
check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" -lpthread
check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
case "$custom_allocator" in
jemalloc)
# jemalloc by default does not use a prefix
require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
;;
tcmalloc)
require_pkg_config libtcmalloc gperftools/tcmalloc.h tc_malloc
malloc_prefix=tc_
;;
esac
check_func_headers malloc.h _aligned_malloc && enable aligned_malloc
check_func ${malloc_prefix}memalign && enable memalign
check_func ${malloc_prefix}posix_memalign && enable posix_memalign
check_func access
check_func_headers stdlib.h arc4random
check_func_headers time.h clock_gettime ||
{ check_lib clock_gettime time.h clock_gettime -lrt && LIBRT="-lrt"; }
check_func fcntl
check_func fork
check_func gethrtime
check_func getopt
check_func getrusage
check_func gettimeofday
check_func isatty
check_func mach_absolute_time
check_func mkstemp
check_func mmap
check_func mprotect
# Solaris has nanosleep in -lrt, OpenSolaris no longer needs that
check_func_headers time.h nanosleep ||
{ check_lib nanosleep time.h nanosleep -lrt && LIBRT="-lrt"; }
check_func sched_getaffinity
check_func setrlimit
check_struct "sys/stat.h" "struct stat" st_mtim.tv_nsec -D_BSD_SOURCE
check_func strerror_r
check_func sysconf
check_func sysctl
check_func usleep
check_func_headers conio.h kbhit
check_func_headers io.h setmode
check_func_headers lzo/lzo1x.h lzo1x_999_compress
check_func_headers stdlib.h getenv
check_func_headers sys/stat.h lstat
check_func_headers windows.h GetProcessAffinityMask
check_func_headers windows.h GetProcessTimes
check_func_headers windows.h GetSystemTimeAsFileTime
check_func_headers windows.h LoadLibrary
check_func_headers windows.h MapViewOfFile
check_func_headers windows.h PeekNamedPipe
check_func_headers windows.h SetConsoleTextAttribute
check_func_headers windows.h SetConsoleCtrlHandler
check_func_headers windows.h Sleep
check_func_headers windows.h VirtualAlloc
check_struct windows.h "CONDITION_VARIABLE" Ptr
check_func_headers glob.h glob
enabled xlib &&
check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
check_header AudioToolbox/AudioToolbox.h
check_header d3d11.h
check_header direct.h
check_header dirent.h
check_header dlfcn.h
check_header dxgidebug.h
check_header dxva.h
check_header dxva2api.h -D_WIN32_WINNT=0x0600
check_header io.h
check_header libcrystalhd/libcrystalhd_if.h
check_header mach/mach_time.h
check_header malloc.h
check_header net/udplite.h
check_header poll.h
check_header sys/mman.h
check_header sys/param.h
check_header sys/resource.h
check_header sys/select.h
check_header sys/time.h
check_header sys/un.h
check_header termios.h
check_header unistd.h
check_header valgrind/valgrind.h
check_header VideoDecodeAcceleration/VDADecoder.h
check_header VideoToolbox/VideoToolbox.h
check_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
enabled videotoolbox && check_func_headers CoreVideo/CVImageBuffer.h kCVImageBufferColorPrimaries_ITU_R_2020 -framework CoreVideo
check_header windows.h
check_header X11/extensions/XvMClib.h
check_header asm/types.h
# it seems there are versions of clang in some distros that try to use the
# gcc headers, which explodes for stdatomic
# so we also check that atomics actually work here
check_builtin stdatomic_h stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0)"
check_lib ole32 "windows.h" CoTaskMemFree -lole32
check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32
check_lib wincrypt "windows.h wincrypt.h" CryptGenRandom -ladvapi32
check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
check_lib coreservices "CoreServices/CoreServices.h" UTGetOSTypeFromString "-framework CoreServices"
check_struct "sys/time.h sys/resource.h" "struct rusage" ru_maxrss
check_type "windows.h dxva.h" "DXVA_PicParams_HEVC" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
check_type "windows.h dxva.h" "DXVA_PicParams_VP9" -DWINAPI_FAMILY=WINAPI_FAMILY_DESKTOP_APP -D_CRT_BUILD_DESKTOP_APP=0
check_type "windows.h d3d11.h" "ID3D11VideoDecoder"
check_type "windows.h d3d11.h" "ID3D11VideoContext"
check_type "d3d9.h dxva2api.h" DXVA2_ConfigPictureDecode -D_WIN32_WINNT=0x0602
check_type "va/va.h va/va_dec_hevc.h" "VAPictureParameterBufferHEVC"
check_struct "va/va.h" "VADecPictureParameterBufferVP9" bit_depth
check_type "va/va.h va/va_vpp.h" "VAProcPipelineParameterBuffer"
check_type "va/va.h va/va_enc_h264.h" "VAEncPictureParameterBufferH264"
check_type "va/va.h va/va_enc_hevc.h" "VAEncPictureParameterBufferHEVC"
check_type "va/va.h va/va_enc_jpeg.h" "VAEncPictureParameterBufferJPEG"
check_type "va/va.h va/va_enc_mpeg2.h" "VAEncPictureParameterBufferMPEG2"
check_type "va/va.h va/va_enc_vp8.h" "VAEncPictureParameterBufferVP8"
check_type "va/va.h va/va_enc_vp9.h" "VAEncPictureParameterBufferVP9"
check_type "vdpau/vdpau.h" "VdpPictureInfoHEVC"
check_cpp_condition windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)" && enable winrt || disable winrt
if ! disabled w32threads && ! enabled pthreads; then
check_func_headers "windows.h process.h" _beginthreadex &&
enable w32threads || disable w32threads
if ! enabled w32threads && enabled winrt; then
check_func_headers "windows.h" CreateThread &&
enable w32threads || disable w32threads
fi
fi
# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if ! disabled pthreads && ! enabled w32threads && ! enabled os2threads; then
if check_lib pthreads pthread.h pthread_join -pthread &&
check_lib pthreads pthread.h pthread_create -pthread; then
add_cflags -pthread
elif check_lib pthreads pthread.h pthread_join -pthreads &&
check_lib pthreads pthread.h pthread_create -pthreads; then
add_cflags -pthreads
elif check_lib pthreads pthread.h pthread_join -ldl -pthread &&
check_lib pthreads pthread.h pthread_create -ldl -pthread; then
add_cflags -ldl -pthread
elif check_lib pthreads pthread.h pthread_join -lpthreadGC2 &&
check_lib pthreads pthread.h pthread_create -lpthreadGC2; then
:
elif check_lib pthreads pthread.h pthread_join -lpthread &&
check_lib pthreads pthread.h pthread_create -lpthread; then
:
elif check_func pthread_join && check_func pthread_create; then
enable pthreads
fi
check_code cc "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER" || disable pthreads
fi
if enabled pthreads; then
check_func pthread_cancel
fi
enabled pthreads &&
check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)"
enabled zlib && check_lib zlib zlib.h zlibVersion -lz
enabled bzlib && check_lib bzlib bzlib.h BZ2_bzlibVersion -lbz2
enabled lzma && check_lib lzma lzma.h lzma_version_number -llzma
check_lib libm math.h sin -lm && LIBM="-lm"
atan2f_args=2
copysign_args=2
hypot_args=2
ldexpf_args=2
powf_args=2
for func in $MATH_FUNCS; do
eval check_mathfunc $func \${${func}_args:-1} $LIBM
done
for func in $COMPLEX_FUNCS; do
eval check_complexfunc $func \${${func}_args:-1}
done
# these are off by default, so fail if requested and not available
enabled avfoundation_indev && { check_header_objcc AVFoundation/AVFoundation.h || disable avfoundation_indev; }
enabled avfoundation_indev && { check_lib avfoundation_indev CoreGraphics/CoreGraphics.h CGGetActiveDisplayList -framework CoreGraphics ||
check_lib avfoundation_indev ApplicationServices/ApplicationServices.h CGGetActiveDisplayList -framework ApplicationServices; }
enabled cuda_sdk && require cuda_sdk cuda.h cuCtxCreate -lcuda
enabled cuvid && { enabled cuda ||
die "ERROR: CUVID requires CUDA"; }
enabled chromaprint && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
enabled coreimage_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimage_filter; }
enabled coreimagesrc_filter && { check_header_objcc QuartzCore/CoreImage.h || disable coreimagesrc_filter; }
enabled decklink && { { check_header DeckLinkAPI.h || die "ERROR: DeckLinkAPI.h header not found"; } &&
{ check_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
enabled libndi_newtek && { check_header Processing.NDI.Lib.h || die "ERROR: Processing.NDI.Lib.h header not found"; }
enabled frei0r && { check_header frei0r.h || die "ERROR: frei0r.h header not found"; }
enabled gmp && require gmp gmp.h mpz_export -lgmp
enabled gnutls && require_pkg_config gnutls gnutls/gnutls.h gnutls_global_init
enabled jni && { [ $target_os = "android" ] && check_header jni.h && enabled pthreads || die "ERROR: jni not found"; }
enabled ladspa && { check_header ladspa.h || die "ERROR: ladspa.h header not found"; }
enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
enabled libass && require_pkg_config libass ass/ass.h ass_library_init
enabled libbluray && require_pkg_config libbluray libbluray/bluray.h bd_open
enabled libbs2b && require_pkg_config libbs2b bs2b.h bs2b_open
enabled libcelt && require libcelt celt/celt.h celt_decode -lcelt0 &&
{ check_lib libcelt celt/celt.h celt_decoder_create_custom -lcelt0 ||
die "ERROR: libcelt must be installed and version must be >= 0.11.0."; }
enabled libcaca && require_pkg_config caca caca.h caca_create_canvas
enabled libdc1394 && require_pkg_config libdc1394-2 dc1394/dc1394.h dc1394_new
enabled libfdk_aac && { use_pkg_config fdk-aac "fdk-aac/aacenc_lib.h" aacEncOpen ||
{ require libfdk_aac fdk-aac/aacenc_lib.h aacEncOpen -lfdk-aac &&
warn "using libfdk without pkg-config"; } }
flite_extralibs="-lflite_cmu_time_awb -lflite_cmu_us_awb -lflite_cmu_us_kal -lflite_cmu_us_kal16 -lflite_cmu_us_rms -lflite_cmu_us_slt -lflite_usenglish -lflite_cmulex -lflite"
enabled libflite && require libflite "flite/flite.h" flite_init $flite_extralibs
enabled fontconfig && enable libfontconfig
enabled libfontconfig && require_pkg_config fontconfig "fontconfig/fontconfig.h" FcInit
enabled libfreetype && require_pkg_config freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
enabled libfribidi && require_pkg_config fribidi fribidi.h fribidi_version_info
enabled libgme && { use_pkg_config libgme gme/gme.h gme_new_emu ||
require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
done || die "ERROR: libgsm not found"; }
enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc
enabled libkvazaar && require_pkg_config "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
configure: Added require alternative for libmfx to support alternate installation options
Purpose: Added require alternative for libmfx in the case that pkg-config
cannot find libmfx. On Linux, most people likely get libmfx via
https://github.com/lu-zero/mfx_dispatch , but on Windows, the most
well-known way to get libmfx is via the Intel Media SDK, which
provides a static build of libmfx.lib and also provides the source
code for building libmfx yourself. If built this way, there are no
pkg-config files to be found.
Comments:
-- configure: Altered enabled libmfx step to use use_pkg_config()
instead of require_pkg_config(), and, if use_pkg_config() fails, it
falls back to require(). Also added explanatory comment. Note
that the reason that require() is passed -llibmfx as the last
argument, instead of -lmfx, is the file name for the library
produced from the Intel Media SDK starts with "libmfx".
Apparently, the filename for the library produced via
https://github.com/lu-zero/mfx_dispatch starts with "mfx".
Signed-off-by: Aaron Levinson <alevinsn@aracnet.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
8 years ago
# While it may appear that require is being used as a pkg-config
# fallback for libmfx, it is actually being used to detect a different
# installation route altogether. If libmfx is installed via the Intel
# Media SDK or Intel Media Server Studio, these don't come with
# pkg-config support. Instead, users should make sure that the build
# can find the libraries and headers through other means.
enabled libmfx && { use_pkg_config libmfx "mfx/mfxvideo.h" MFXInit ||
{ require libmfx "mfx/mfxvideo.h" MFXInit -llibmfx && warn "using libmfx without pkg-config"; } }
enabled libmodplug && require_pkg_config libmodplug libmodplug/modplug.h ModPlug_Load
enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame
enabled libmysofa && require libmysofa "mysofa.h" mysofa_load -lmysofa
enabled libnpp && { check_lib libnpp npp.h nppGetLibVersion -lnppig -lnppicc -lnppc ||
check_lib libnpp npp.h nppGetLibVersion -lnppi -lnppc ||
die "ERROR: libnpp not found"; }
enabled libopencore_amrnb && require libopencore_amrnb opencore-amrnb/interf_dec.h Decoder_Interface_init -lopencore-amrnb
enabled libopencore_amrwb && require libopencore_amrwb opencore-amrwb/dec_if.h D_IF_init -lopencore-amrwb
enabled libopencv && { check_header opencv2/core/core_c.h &&
{ use_pkg_config opencv opencv2/core/core_c.h cvCreateImageHeader ||
require opencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
require_pkg_config opencv opencv/cxcore.h cvCreateImageHeader; }
enabled libopenh264 && require_pkg_config openh264 wels/codec_api.h WelsGetCodecVersion
enabled libopenjpeg && { { check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
check_lib libopenjpeg openjpeg-2.2/openjpeg.h opj_version -lopenjp2 ||
{ check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
check_lib libopenjpeg openjpeg-2.1/openjpeg.h opj_version -lopenjp2 ||
{ check_lib libopenjpeg openjpeg-2.0/openjpeg.h opj_version -lopenjp2 -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
{ check_lib libopenjpeg openjpeg-1.5/openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
{ check_lib libopenjpeg openjpeg.h opj_version -lopenjpeg -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } ||
die "ERROR: libopenjpeg not found"; }
enabled libopenmpt && require_pkg_config "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create
enabled libopus && {
enabled libopus_decoder && {
require_pkg_config opus opus_multistream.h opus_multistream_decoder_create
}
enabled libopus_encoder && {
require_pkg_config opus opus_multistream.h opus_multistream_surround_encoder_create
}
}
enabled libpulse && require_pkg_config libpulse pulse/pulseaudio.h pa_context_new
enabled librsvg && require_pkg_config librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
enabled librtmp && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
enabled librubberband && require_pkg_config "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new
enabled libshine && require_pkg_config shine shine/layer3.h shine_encode_buffer
enabled libsmbclient && { use_pkg_config smbclient libsmbclient.h smbc_init ||
require smbclient libsmbclient.h smbc_init -lsmbclient; }
enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy
enabled libsoxr && require libsoxr soxr.h soxr_create -lsoxr && LIBSOXR="-lsoxr"
enabled libssh && require_pkg_config libssh libssh/sftp.h sftp_init
enabled libspeex && require_pkg_config speex speex/speex.h speex_decoder_init -lspeex
enabled libtesseract && require_pkg_config tesseract tesseract/capi.h TessBaseAPICreate
enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
enabled libtwolame && require libtwolame twolame.h twolame_init -ltwolame &&
{ check_lib libtwolame twolame.h twolame_encode_buffer_float32_interleaved -ltwolame ||
die "ERROR: libtwolame must be installed and version must be >= 0.3.10"; }
enabled libv4l2 && require_pkg_config libv4l2 libv4l2.h v4l2_ioctl
enabled libvidstab && require_pkg_config "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
enabled libvmaf && require_pkg_config libvmaf libvmaf.h compute_vmaf
enabled libvo_amrwbenc && require libvo_amrwbenc vo-amrwbenc/enc_if.h E_IF_init -lvo-amrwbenc
enabled libvorbis && require_pkg_config vorbis vorbis/codec.h vorbis_info_init &&
require_pkg_config vorbisenc vorbis/vorbisenc.h vorbis_encode_init
enabled libvpx && {
enabled libvpx_vp8_decoder && {
use_pkg_config "vpx >= 0.9.1" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp8_dx ||
check_lib libvpx_vp8_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_dec_init_ver -lvpx ||
die "ERROR: libvpx decoder version must be >=0.9.1";
}
enabled libvpx_vp8_encoder && {
use_pkg_config "vpx >= 0.9.7" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp8_cx ||
check_lib libvpx_vp8_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_enc_init_ver VP8E_SET_MAX_INTRA_BITRATE_PCT" -lvpx ||
die "ERROR: libvpx encoder version must be >=0.9.7";
}
enabled libvpx_vp9_decoder && {
use_pkg_config "vpx >= 1.3.0" "vpx/vpx_decoder.h vpx/vp8dx.h" vpx_codec_vp9_dx ||
check_lib libvpx_vp9_decoder "vpx/vpx_decoder.h vpx/vp8dx.h" "vpx_codec_vp9_dx" -lvpx
}
enabled libvpx_vp9_encoder && {
use_pkg_config "vpx >= 1.3.0" "vpx/vpx_encoder.h vpx/vp8cx.h" vpx_codec_vp9_cx ||
check_lib libvpx_vp9_encoder "vpx/vpx_encoder.h vpx/vp8cx.h" "vpx_codec_vp9_cx VP9E_SET_AQ_MODE" -lvpx
}
if disabled_all libvpx_vp8_decoder libvpx_vp9_decoder libvpx_vp8_encoder libvpx_vp9_encoder; then
die "libvpx enabled but no supported decoders found"
fi
}
enabled libwavpack && require libwavpack wavpack/wavpack.h WavpackOpenFileOutput -lwavpack
enabled libwebp && {
enabled libwebp_encoder && require_pkg_config "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
enabled libwebp_anim_encoder && { use_pkg_config "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit || disable libwebp_anim_encoder; } }
enabled libx264 && { use_pkg_config x264 "stdint.h x264.h" x264_encoder_encode ||
{ require libx264 "stdint.h x264.h" x264_encoder_encode -lx264 &&
warn "using libx264 without pkg-config"; } } &&
{ check_cpp_condition x264.h "X264_BUILD >= 118" ||
die "ERROR: libx264 must be installed and version must be >= 0.118."; } &&
{ check_cpp_condition x264.h "X264_MPEG2" &&
enable libx262; }
enabled libx265 && require_pkg_config x265 x265.h x265_api_get &&
{ check_cpp_condition x265.h "X265_BUILD >= 68" ||
die "ERROR: libx265 version must be >= 68."; }
enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode -lxavs
enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
enabled libzimg && require_pkg_config "zimg >= 2.3.0" zimg.h zimg_get_api_version
enabled libzmq && require_pkg_config libzmq zmq.h zmq_ctx_new
enabled libzvbi && require libzvbi libzvbi.h vbi_decoder_new -lzvbi &&
{ check_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
enabled mediacodec && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
enabled mmal && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
{ ! enabled cross_compile &&
add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
add_ldflags -L/opt/vc/lib/ &&
check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
die "ERROR: mmal not found" &&
check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
enabled openal && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
die "ERROR: openal not found"; } &&
{ check_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
enabled opencl && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
die "ERROR: opencl not found"; } &&
{ check_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
check_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
enabled opengl && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
die "ERROR: opengl not found."
}
enabled omx_rpi && { check_header OMX_Core.h ||
{ ! enabled cross_compile && add_cflags -isystem/opt/vc/include/IL && check_header OMX_Core.h ; } ||
die "ERROR: OpenMAX IL headers not found"; }
enabled omx && { check_header OMX_Core.h || die "ERROR: OpenMAX IL headers not found"; }
enabled openssl && { use_pkg_config openssl openssl/ssl.h OPENSSL_init_ssl ||
use_pkg_config openssl openssl/ssl.h SSL_library_init ||
check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto ||
check_lib openssl openssl/ssl.h SSL_library_init -lssl32 -leay32 ||
check_lib openssl openssl/ssl.h SSL_library_init -lssl -lcrypto -lws2_32 -lgdi32 ||
die "ERROR: openssl not found"; }
enabled qtkit_indev && { check_header_objcc QTKit/QTKit.h || disable qtkit_indev; }
if enabled gcrypt; then
GCRYPT_CONFIG="${cross_prefix}libgcrypt-config"
if "${GCRYPT_CONFIG}" --version > /dev/null 2>&1; then
gcrypt_cflags=$("${GCRYPT_CONFIG}" --cflags)
gcrypt_extralibs=$("${GCRYPT_CONFIG}" --libs)
check_func_headers gcrypt.h gcry_mpi_new $gcrypt_cflags $gcrypt_extralibs ||
die "ERROR: gcrypt not found"
add_cflags $gcrypt_cflags && add_extralibs $gcrypt_extralibs
else
require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
fi
fi
disabled sdl && disable sdl2
if ! disabled sdl2; then
SDL2_CONFIG="${cross_prefix}sdl2-config"
if check_pkg_config sdl2 SDL_events.h SDL_PollEvent; then
check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2
else
if "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
check_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
check_func SDL_Init $sdl2_extralibs $sdl2_cflags && enable sdl2
fi
fi
if test $target_os = "mingw32"; then
sdl2_extralibs="$sdl2_extralibs -mconsole"
fi
fi
enabled sdl2 && enable sdl && add_cflags $sdl2_cflags && add_extralibs $sdl2_extralibs
if enabled decklink; then
case $target_os in
mingw32*|mingw64*|win32|win64)
decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
;;
esac
fi
enabled securetransport &&
check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext SecItemImport" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
disable securetransport
enabled schannel &&
check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
check_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
add_extralibs -lsecur32 ||
disable schannel
makeinfo --version > /dev/null 2>&1 && enable makeinfo || disable makeinfo
enabled makeinfo \
&& [ 0$(makeinfo --version | grep "texinfo" | sed 's/.*texinfo[^0-9]*\([0-9]*\)\..*/\1/') -ge 5 ] \
&& enable makeinfo_html || disable makeinfo_html
disabled makeinfo_html && texi2html --help 2> /dev/null | grep -q 'init-file' && enable texi2html || disable texi2html
perl -v > /dev/null 2>&1 && enable perl || disable perl
pod2man --help > /dev/null 2>&1 && enable pod2man || disable pod2man
rsync --help 2> /dev/null | grep -q 'contimeout' && enable rsync_contimeout || disable rsync_contimeout
check_header linux/fb.h
check_header linux/videodev.h
check_header linux/videodev2.h
check_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
check_header sys/videoio.h
check_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_safe struct_v4l2_frmivalenum_discrete
check_lib user32 "windows.h winuser.h" GetShellWindow -luser32
check_lib vfw32 "windows.h vfw.h" capCreateCaptureWindow -lvfw32
# check that WM_CAP_DRIVER_CONNECT is defined to the proper value
# w32api 3.12 had it defined wrong
check_cpp_condition vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER" && enable vfwcap_defines
check_type "dshow.h" IBaseFilter
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
{ check_header dev/bktr/ioctl_meteor.h &&
check_header dev/bktr/ioctl_bt848.h; } ||
{ check_header machine/ioctl_meteor.h &&
check_header machine/ioctl_bt848.h; } ||
{ check_header dev/video/meteor/ioctl_meteor.h &&
check_header dev/video/bktr/ioctl_bt848.h; } ||
check_header dev/ic/bt8xx.h
if check_struct sys/soundcard.h audio_buf_info bytes; then
enable_safe sys/soundcard.h
else
check_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_safe sys/soundcard.h
#include <sys/soundcard.h>
audio_buf_info abc;
EOF
fi
check_header soundcard.h
enabled_any alsa_indev alsa_outdev &&
check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
enabled jack_indev && check_lib jack jack/jack.h jack_client_open -ljack &&
check_func jack_port_get_latency_range -ljack
enabled_any sndio_indev sndio_outdev && check_lib sndio sndio.h sio_open -lsndio
if enabled libcdio; then
check_lib libcdio "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
check_lib libcdio "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open -lcdio_paranoia -lcdio_cdda -lcdio ||
die "ERROR: No usable libcdio/cdparanoia found"
fi
enabled libxcb && check_pkg_config "xcb >= 1.4" xcb/xcb.h xcb_connect || disable libxcb
if enabled libxcb; then
enabled libxcb_shm && check_pkg_config xcb-shm xcb/shm.h xcb_shm_attach || disable libxcb_shm
enabled libxcb_shape && check_pkg_config xcb-shape xcb/shape.h xcb_shape_get_rectangles || disable libxcb_shape
enabled libxcb_xfixes && check_pkg_config xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image || disable libxcb_xfixes
add_cflags $xcb_cflags $xcb_shm_cflags $xcb_xfixes_cflags $xcb_shape_cflags
add_extralibs $xcb_extralibs $xcb_shm_extralibs $xcb_xfixes_extralibs $xcb_shape_extralibs
fi
check_func_headers "windows.h" CreateDIBSection "$gdigrab_indev_extralibs"
# d3d11va requires linking directly to dxgi and d3d11 if not building for
# the desktop api partition
check_cpp <<EOF && enable uwp && d3d11va_extralibs="-ldxgi -ld3d11"
#ifdef WINAPI_FAMILY
#include <winapifamily.h>
#if WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#error desktop, not uwp
#else
// WINAPI_FAMILY_APP, WINAPI_FAMILY_PHONE_APP => UWP
#endif
#else
#error no family set
#endif
EOF
enabled vaapi &&
check_lib vaapi va/va.h vaInitialize -lva
enabled vaapi &&
check_code cc "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)" ||
disable vaapi
enabled vaapi &&
check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
enabled vaapi &&
check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
enabled vdpau &&
check_cpp_condition vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP" ||
disable vdpau
enabled vdpau &&
check_lib vdpau_x11 "vdpau/vdpau.h vdpau/vdpau_x11.h" vdp_device_create_x11 -lvdpau -lX11
enabled crystalhd && check_lib crystalhd "stdint.h libcrystalhd/libcrystalhd_if.h" DtsCrystalHDVersion -lcrystalhd
if enabled x86; then
case $target_os in
mingw32*|mingw64*|win32|win64|linux|cygwin*)
;;
*)
disable cuda cuvid nvenc
;;
esac
else
disable cuda cuvid nvenc
fi
enabled nvenc &&
check_cc -I$source_path <<EOF || disable nvenc
#include "compat/nvenc/nvEncodeAPI.h"
NV_ENCODE_API_FUNCTION_LIST flist;
void f(void) { struct { const GUID guid; } s[] = { { NV_ENC_PRESET_HQ_GUID } }; }
int main(void) { return 0; }
EOF
# Funny iconv installations are not unusual, so check it after all flags have been set
enabled iconv && check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
enabled debug && add_cflags -g"$debuglevel" && add_asflags -g"$debuglevel"
# add some useful compiler flags if supported
check_cflags -Wdeclaration-after-statement
check_cflags -Wall
check_cflags -Wdisabled-optimization
check_cflags -Wpointer-arith
check_cflags -Wredundant-decls
check_cflags -Wwrite-strings
check_cflags -Wtype-limits
check_cflags -Wundef
check_cflags -Wmissing-prototypes
check_cflags -Wno-pointer-to-int-cast
check_cflags -Wstrict-prototypes
check_cflags -Wempty-body
if enabled extra_warnings; then
check_cflags -Wcast-qual
check_cflags -Wextra
check_cflags -Wpedantic
fi
check_disable_warning(){
warning_flag=-W${1#-Wno-}
test_cflags $warning_flag && add_cflags $1
}
check_disable_warning -Wno-parentheses
check_disable_warning -Wno-switch
check_disable_warning -Wno-format-zero-length
check_disable_warning -Wno-pointer-sign
check_disable_warning -Wno-unused-const-variable
check_disable_warning_headers(){
warning_flag=-W${1#-Wno-}
test_cflags $warning_flag && add_cflags_headers $1
}
check_disable_warning_headers -Wno-deprecated-declarations
check_disable_warning_headers -Wno-unused-variable
check_cc <<EOF && enable blocks_extension
void (^block)(void);
EOF
# add some linker flags
check_ldflags -Wl,--warn-common
check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
enabled rpath && add_ldexeflags -Wl,-rpath,$libdir
enabled rpath && add_ldlibflags -Wl,-rpath,$libdir
test_ldflags -Wl,-Bsymbolic && append SHFLAGS -Wl,-Bsymbolic
# add some strip flags
check_stripflags -x
enabled neon_clobber_test &&
check_ldflags -Wl,--wrap,avcodec_open2 \
-Wl,--wrap,avcodec_decode_audio4 \
-Wl,--wrap,avcodec_decode_video2 \
-Wl,--wrap,avcodec_decode_subtitle2 \
-Wl,--wrap,avcodec_encode_audio2 \
-Wl,--wrap,avcodec_encode_video2 \
-Wl,--wrap,avcodec_encode_subtitle \
-Wl,--wrap,avcodec_send_packet \
-Wl,--wrap,avcodec_receive_packet \
-Wl,--wrap,avcodec_send_frame \
-Wl,--wrap,avcodec_receive_frame \
-Wl,--wrap,swr_convert \
-Wl,--wrap,avresample_convert ||
disable neon_clobber_test
enabled xmm_clobber_test &&
check_ldflags -Wl,--wrap,avcodec_open2 \
-Wl,--wrap,avcodec_decode_audio4 \
-Wl,--wrap,avcodec_decode_video2 \
-Wl,--wrap,avcodec_decode_subtitle2 \
-Wl,--wrap,avcodec_encode_audio2 \
-Wl,--wrap,avcodec_encode_video2 \
-Wl,--wrap,avcodec_encode_subtitle \
-Wl,--wrap,avcodec_send_packet \
-Wl,--wrap,avcodec_receive_packet \
-Wl,--wrap,avcodec_send_frame \
-Wl,--wrap,avcodec_receive_frame \
-Wl,--wrap,swr_convert \
-Wl,--wrap,avresample_convert \
-Wl,--wrap,sws_scale ||
disable xmm_clobber_test
check_ld "cc" <<EOF && enable proper_dce
extern const int array[512];
static inline int func(void) { return array[0]; }
int main(void) { return 0; }
EOF
if enabled proper_dce; then
echo "X { local: *; };" > $TMPV
if test_ldflags -Wl,${version_script},$TMPV; then
append SHFLAGS '-Wl,${version_script},\$(SUBDIR)lib\$(NAME).ver'
check_cc <<EOF && enable symver_asm_label
void ff_foo(void) __asm__ ("av_foo@VERSION");
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
EOF
check_cc <<EOF && enable symver_gnu_asm
__asm__(".symver ff_foo,av_foo@VERSION");
void ff_foo(void) {}
EOF
fi
fi
if [ -z "$optflags" ]; then
if enabled small; then
optflags=$cflags_size
elif enabled optimizations; then
optflags=$cflags_speed
else
optflags=$cflags_noopt
fi
fi
if [ -z "$nvccflags" ]; then
nvccflags=$nvccflags_default
fi
if enabled x86_64 || enabled ppc64 || enabled aarch64; then
nvccflags="$nvccflags -m64"
else
nvccflags="$nvccflags -m32"
fi
check_optflags(){
check_cflags "$@"
enabled lto && check_ldflags "$@"
}
check_optflags $optflags
check_optflags -fno-math-errno
check_optflags -fno-signed-zeros
if enabled lto; then
test "$cc_type" != "$ld_type" && die "LTO requires same compiler and linker"
check_cflags -flto
check_ldflags -flto $cpuflags
disable inline_asm_direct_symbol_refs
fi
enabled ftrapv && check_cflags -ftrapv
check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
int x;
EOF
if enabled icc; then
# Just warnings, no remarks
check_cflags -w1
# -wd: Disable following warnings
# 144, 167, 556: -Wno-pointer-sign
# 188: enumerated type mixed with another type
# 1292: attribute "foo" ignored
# 1419: external declaration in primary source file
# 10006: ignoring unknown option -fno-signed-zeros
# 10148: ignoring unknown option -Wno-parentheses
# 10156: ignoring option '-W'; no argument required
# 13200: No EMMS instruction before call to function
# 13203: No EMMS instruction before return from function
check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
# 11030: Warning unknown option --as-needed
# 10156: ignoring option '-export'; no argument required
check_ldflags -wd10156,11030
# icc 11.0 and 11.1 work with ebp_available, but don't pass the test
enable ebp_available
# The test above does not test linking
enabled lto && disable symver_asm_label
if enabled x86_32; then
icc_version=$($cc -dumpversion)
test ${icc_version%%.*} -ge 11 &&
check_cflags -falign-stack=maintain-16-byte ||
disable aligned_stack
fi
elif enabled ccc; then
# disable some annoying warnings
add_cflags -msg_disable bitnotint
add_cflags -msg_disable mixfuncvoid
add_cflags -msg_disable nonstandcast
add_cflags -msg_disable unsupieee
elif enabled gcc; then
check_optflags -fno-tree-vectorize
check_cflags -Werror=format-security
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
check_cflags -Werror=return-type
check_cflags -Werror=vla
check_cflags -Wformat
check_cflags -fdiagnostics-color=auto
enabled extra_warnings || check_disable_warning -Wno-maybe-uninitialized
elif enabled llvm_gcc; then
check_cflags -mllvm -stack-alignment=16
elif enabled clang; then
check_cflags -mllvm -stack-alignment=16
check_cflags -mstack-alignment=16
check_cflags -Qunused-arguments
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
check_cflags -Werror=return-type
elif enabled cparser; then
add_cflags -Wno-missing-variable-declarations
add_cflags -Wno-empty-statement
elif enabled armcc; then
add_cflags -W${armcc_opt},--diag_suppress=4343 # hardfp compat
add_cflags -W${armcc_opt},--diag_suppress=3036 # using . as system include dir
# 2523: use of inline assembly is deprecated
add_cflags -W${armcc_opt},--diag_suppress=2523
add_cflags -W${armcc_opt},--diag_suppress=1207
add_cflags -W${armcc_opt},--diag_suppress=1293 # assignment in condition
add_cflags -W${armcc_opt},--diag_suppress=3343 # hardfp compat
add_cflags -W${armcc_opt},--diag_suppress=167 # pointer sign
add_cflags -W${armcc_opt},--diag_suppress=513 # pointer sign
elif enabled tms470; then
add_cflags -pds=824 -pds=837
disable inline_asm
elif enabled pathscale; then
add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
elif enabled_any msvc icl; then
enabled x86_32 && disable aligned_stack
enabled_all x86_32 debug && add_cflags -Oy-
enabled debug && add_ldflags -debug
enable pragma_deprecated
if enabled icl; then
# -Qansi-alias is basically -fstrict-aliasing, but does not work
# (correctly) on icl 13.x.
check_cpp_condition "windows.h" "__ICL < 1300 || __ICL >= 1400" &&
add_cflags -Qansi-alias
# Some inline asm is not compilable in debug
if enabled debug; then
disable ebp_available
disable ebx_available
fi
fi
# msvcrt10 x64 incorrectly enables log2, only msvcrt12 (MSVC 2013) onwards actually has log2.
check_cpp_condition crtversion.h "_VC_CRT_MAJOR_VERSION >= 12" || disable log2
# The CRT headers contain __declspec(restrict) in a few places, but if redefining
# restrict, this might break. MSVC 2010 and 2012 fail with __declspec(__restrict)
# (as it ends up if the restrict redefine is done before including stdlib.h), while
# MSVC 2013 and newer can handle it fine.
# If this declspec fails, force including stdlib.h before the restrict redefinition
# happens in config.h.
if [ $_restrict != restrict ]; then
check_cc <<EOF || add_cflags -FIstdlib.h
__declspec($_restrict) void* foo(int);
EOF
fi
# the new SSA optimzer in VS2015 U3 is mis-optimizing some parts of the code
# Issue has been fixed in MSVC v19.00.24218.
check_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
check_cflags -d2SSAOptimizer-
# enable utf-8 source processing on VS2015 U2 and newer
check_cpp_condition windows.h "_MSC_FULL_VER >= 190023918" &&
add_cflags -utf-8
fi
for pfx in "" host_; do
varname=${pfx%_}cc_type
eval "type=\$$varname"
if [ "$type" = "msvc" ]; then
check_${pfx}cc <<EOF || add_${pfx}cflags -Dinline=__inline
static inline int foo(int a) { return a; }
EOF
fi
done
case $as_type in
clang)
add_asflags -Qunused-arguments
;;
esac
case $ld_type in
clang)
check_ldflags -Qunused-arguments
;;
esac
case $target_os in
osf1)
enabled ccc && add_ldflags '-Wl,-expect_unresolved,*'
;;
esac
enable frame_thread_encoder
enabled asm || { arch=c; disable $ARCH_LIST $ARCH_EXT_LIST; }
check_deps $CONFIG_LIST \
$CONFIG_EXTRA \
$HAVE_LIST \
$ALL_COMPONENTS \
enabled threads && ! enabled pthreads && ! enabled atomics_native && die "non pthread threading without atomics not supported, try adding --enable-pthreads or --cpu=i486 or higher if you are on x86"
if test $target_os = "haiku"; then
disable memalign
disable posix_memalign
fi
# add_dep lib dep
# -> enable ${lib}_deps_${dep}
# -> add $dep to ${lib}_deps only once
add_dep() {
lib=$1
dep=$2
enabled "${lib}_deps_${dep}" && return 0
enable "${lib}_deps_${dep}"
prepend "${lib}_deps" $dep
}
# merge deps lib components
# merge all ${component}_deps into ${lib}_deps and ${lib}_deps_*
merge_deps() {
lib=$1
shift
for comp in $*; do
enabled $comp || continue
eval "dep=\"\$${comp}_deps\""
for d in $dep; do
add_dep $lib $d
done
done
}
merge_deps libavfilter $FILTER_LIST
map 'enabled $v && intrinsics=${v#intrinsics_}' $INTRINSICS_LIST
for thread in $THREADS_LIST; do
if enabled $thread; then
test -n "$thread_type" &&
die "ERROR: Only one thread type must be selected." ||
thread_type="$thread"
fi
done
if disabled stdatomic_h; then
if enabled atomics_gcc; then
add_cppflags '-I\$(SRC_PATH)/compat/atomics/gcc'
elif enabled atomics_win32; then
add_cppflags '-I\$(SRC_PATH)/compat/atomics/win32'
elif enabled atomics_suncc; then
add_cppflags '-I\$(SRC_PATH)/compat/atomics/suncc'
elif enabled pthreads; then
add_compat atomics/pthread/stdatomic.o
add_cppflags '-I\$(SRC_PATH)/compat/atomics/pthread'
else
enabled threads && die "Threading is enabled, but no atomics are available"
add_cppflags '-I\$(SRC_PATH)/compat/atomics/dummy'
fi
fi
# Check if requested libraries were found.
for lib in $AUTODETECT_LIBS; do
requested $lib && ! enabled $lib && die "ERROR: $lib requested but not found";
done
enabled zlib && add_cppflags -DZLIB_CONST
# conditional library dependencies, in linking order
enabled afftfilt_filter && prepend avfilter_deps "avcodec"
enabled afir_filter && prepend avfilter_deps "avcodec"
enabled amovie_filter && prepend avfilter_deps "avformat avcodec"
enabled aresample_filter && prepend avfilter_deps "swresample"
enabled atempo_filter && prepend avfilter_deps "avcodec"
enabled cover_rect_filter && prepend avfilter_deps "avformat avcodec"
enabled ebur128_filter && enabled swresample && prepend avfilter_deps "swresample"
enabled elbg_filter && prepend avfilter_deps "avcodec"
enabled fftfilt_filter && prepend avfilter_deps "avcodec"
enabled find_rect_filter && prepend avfilter_deps "avformat avcodec"
enabled firequalizer_filter && prepend avfilter_deps "avcodec"
enabled mcdeint_filter && prepend avfilter_deps "avcodec"
enabled movie_filter && prepend avfilter_deps "avformat avcodec"
enabled pan_filter && prepend avfilter_deps "swresample"
enabled pp_filter && prepend avfilter_deps "postproc"
enabled removelogo_filter && prepend avfilter_deps "avformat avcodec swscale"
enabled resample_filter && prepend avfilter_deps "avresample"
enabled sab_filter && prepend avfilter_deps "swscale"
enabled scale_filter && prepend avfilter_deps "swscale"
enabled scale2ref_filter && prepend avfilter_deps "swscale"
enabled sofalizer_filter && prepend avfilter_deps "avcodec"
enabled showcqt_filter && prepend avfilter_deps "avformat avcodec swscale"
enabled showfreqs_filter && prepend avfilter_deps "avcodec"
enabled showspectrum_filter && prepend avfilter_deps "avcodec"
enabled signature_filter && prepend avfilter_deps "avcodec avformat"
enabled smartblur_filter && prepend avfilter_deps "swscale"
enabled spectrumsynth_filter && prepend avfilter_deps "avcodec"
enabled spp_filter && prepend avfilter_deps "avcodec"
enabled subtitles_filter && prepend avfilter_deps "avformat avcodec"
enabled uspp_filter && prepend avfilter_deps "avcodec"
enabled zoompan_filter && prepend avfilter_deps "swscale"
enabled lavfi_indev && prepend avdevice_deps "avfilter"
enabled opus_decoder && prepend avcodec_deps "swresample"
expand_deps(){
lib_deps=${1}_deps
eval "deps=\$$lib_deps"
append $lib_deps $(map 'eval echo \$${v}_deps' $deps)
unique $lib_deps
}
#we have to remove gpl from the deps here as some code assumes all lib deps are libs
postproc_deps="$(filter_out 'gpl' $postproc_deps)"
map 'expand_deps $v' $LIBRARY_LIST
license="LGPL version 2.1 or later"
if enabled nonfree; then
license="nonfree and unredistributable"
elif enabled gplv3; then
license="GPL version 3 or later"
elif enabled lgplv3; then
license="LGPL version 3 or later"
elif enabled gpl; then
license="GPL version 2 or later"
fi
if test "$quiet" != "yes"; then
echo "install prefix $prefix"
echo "source path $source_path"
echo "C compiler $cc"
echo "C library $libc_type"
if test "$host_cc" != "$cc"; then
echo "host C compiler $host_cc"
echo "host C library $host_libc_type"
fi
echo "ARCH $arch ($cpu)"
if test "$build_suffix" != ""; then
echo "build suffix $build_suffix"
fi
if test "$progs_suffix" != ""; then
echo "progs suffix $progs_suffix"
fi
if test "$extra_version" != ""; then
echo "version string suffix $extra_version"
fi
echo "big-endian ${bigendian-no}"
echo "runtime cpu detection ${runtime_cpudetect-no}"
if enabled x86; then
echo "standalone assembly ${x86asm-no}"
echo "x86 assembler ${x86asmexe}"
echo "MMX enabled ${mmx-no}"
echo "MMXEXT enabled ${mmxext-no}"
echo "3DNow! enabled ${amd3dnow-no}"
echo "3DNow! extended enabled ${amd3dnowext-no}"
echo "SSE enabled ${sse-no}"
echo "SSSE3 enabled ${ssse3-no}"
echo "AESNI enabled ${aesni-no}"
echo "AVX enabled ${avx-no}"
echo "AVX2 enabled ${avx2-no}"
echo "XOP enabled ${xop-no}"
echo "FMA3 enabled ${fma3-no}"
echo "FMA4 enabled ${fma4-no}"
echo "i686 features enabled ${i686-no}"
echo "CMOV is fast ${fast_cmov-no}"
echo "EBX available ${ebx_available-no}"
echo "EBP available ${ebp_available-no}"
fi
if enabled aarch64; then
echo "NEON enabled ${neon-no}"
echo "VFP enabled ${vfp-no}"
fi
if enabled arm; then
echo "ARMv5TE enabled ${armv5te-no}"
echo "ARMv6 enabled ${armv6-no}"
echo "ARMv6T2 enabled ${armv6t2-no}"
echo "VFP enabled ${vfp-no}"
echo "NEON enabled ${neon-no}"
echo "THUMB enabled ${thumb-no}"
fi
if enabled mips; then
echo "MIPS FPU enabled ${mipsfpu-no}"
echo "MIPS DSP R1 enabled ${mipsdsp-no}"
echo "MIPS DSP R2 enabled ${mipsdspr2-no}"
echo "MIPS MSA enabled ${msa-no}"
echo "LOONGSON MMI enabled ${mmi-no}"
fi
if enabled ppc; then
echo "AltiVec enabled ${altivec-no}"
echo "VSX enabled ${vsx-no}"
echo "POWER8 enabled ${power8-no}"
echo "PPC 4xx optimizations ${ppc4xx-no}"
echo "dcbzl available ${dcbzl-no}"
fi
echo "debug symbols ${debug-no}"
echo "strip symbols ${stripping-no}"
echo "optimize for size ${small-no}"
echo "optimizations ${optimizations-no}"
echo "static ${static-no}"
echo "shared ${shared-no}"
echo "postprocessing support ${postproc-no}"
echo "network support ${network-no}"
echo "threading support ${thread_type-no}"
echo "safe bitstream reader ${safe_bitstream_reader-no}"
echo "texi2html enabled ${texi2html-no}"
echo "perl enabled ${perl-no}"
echo "pod2man enabled ${pod2man-no}"
echo "makeinfo enabled ${makeinfo-no}"
echo "makeinfo supports HTML ${makeinfo_html-no}"
test -n "$random_seed" &&
echo "random seed ${random_seed}"
echo
echo "External libraries:"
print_enabled '' $EXTERNAL_LIBRARY_LIST | print_in_columns
echo
echo "External libraries providing hardware acceleration:"
print_enabled '' $HWACCEL_LIBRARY_LIST | print_in_columns
echo
echo "Libraries:"
print_enabled '' $LIBRARY_LIST | print_in_columns
echo
echo "Programs:"
print_enabled '' $PROGRAM_LIST | print_in_columns
echo
for type in decoder encoder hwaccel parser demuxer muxer protocol filter bsf indev outdev; do
echo "Enabled ${type}s:"
eval list=\$$(toupper $type)_LIST
print_enabled '_*' $list | print_in_columns
echo
done
if test -n "$ignore_tests"; then
ignore_tests=$(echo $ignore_tests | tr ',' ' ')
echo "Ignored FATE tests:"
echo $ignore_tests | print_in_columns
echo
fi
echo "License: $license"
echo "Creating configuration files ..."
fi # test "$quiet" != "yes"
test -e Makefile || echo "include $source_path/Makefile" > Makefile
enabled stripping || strip="echo skipping strip"
config_files="$TMPH ffbuild/config.mak doc/config.texi"
cat > ffbuild/config.mak <<EOF
# Automatically generated by configure - do not modify!
ifndef FFMPEG_CONFIG_MAK
FFMPEG_CONFIG_MAK=1
FFMPEG_CONFIGURATION=$FFMPEG_CONFIGURATION
prefix=$prefix
LIBDIR=\$(DESTDIR)$libdir
SHLIBDIR=\$(DESTDIR)$shlibdir
INCDIR=\$(DESTDIR)$incdir
BINDIR=\$(DESTDIR)$bindir
DATADIR=\$(DESTDIR)$datadir
DOCDIR=\$(DESTDIR)$docdir
MANDIR=\$(DESTDIR)$mandir
PKGCONFIGDIR=\$(DESTDIR)$pkgconfigdir
INSTALL_NAME_DIR=$install_name_dir
SRC_PATH=$source_path
SRC_LINK=$source_link
ifndef MAIN_MAKEFILE
SRC_PATH:=\$(SRC_PATH:.%=..%)
endif
CC_IDENT=$cc_ident
ARCH=$arch
INTRINSICS=$intrinsics
CC=$cc
CXX=$cxx
AS=$as
OBJCC=$objcc
LD=$ld
DEPCC=$dep_cc
DEPCCFLAGS=$DEPCCFLAGS \$(CPPFLAGS)
DEPAS=$as
DEPASFLAGS=$DEPASFLAGS \$(CPPFLAGS)
X86ASM=$x86asmexe
DEPX86ASM=$x86asmexe
DEPX86ASMFLAGS=\$(X86ASMFLAGS)
AR=$ar
ARFLAGS=$arflags
AR_O=$ar_o
RANLIB=$ranlib
STRIP=$strip
NVCC=$nvcc
CP=cp -p
LN_S=$ln_s
CPPFLAGS=$CPPFLAGS
CFLAGS=$CFLAGS
CXXFLAGS=$CXXFLAGS
OBJCFLAGS=$OBJCFLAGS
ASFLAGS=$ASFLAGS
NVCCFLAGS=$nvccflags
AS_C=$AS_C
AS_O=$AS_O
OBJCC_C=$OBJCC_C
OBJCC_E=$OBJCC_E
OBJCC_O=$OBJCC_O
CC_C=$CC_C
CC_E=$CC_E
CC_O=$CC_O
CXX_C=$CXX_C
CXX_O=$CXX_O
NVCC_C=$NVCC_C
NVCC_O=$NVCC_O
LD_O=$LD_O
X86ASM_O=$X86ASM_O
LD_LIB=$LD_LIB
LD_PATH=$LD_PATH
DLLTOOL=$dlltool
WINDRES=$windres
DEPWINDRES=$dep_cc
DOXYGEN=$doxygen
LDFLAGS=$LDFLAGS
LDEXEFLAGS=$LDEXEFLAGS
LDLIBFLAGS=$LDLIBFLAGS
SHFLAGS=$(echo $($ldflags_filter $SHFLAGS))
ASMSTRIPFLAGS=$ASMSTRIPFLAGS
X86ASMFLAGS=$X86ASMFLAGS
BUILDSUF=$build_suffix
PROGSSUF=$progs_suffix
FULLNAME=$FULLNAME
LIBPREF=$LIBPREF
LIBSUF=$LIBSUF
LIBNAME=$LIBNAME
SLIBPREF=$SLIBPREF
SLIBSUF=$SLIBSUF
EXESUF=$EXESUF
EXTRA_VERSION=$extra_version
CCDEP=$CCDEP
CXXDEP=$CXXDEP
CCDEP_FLAGS=$CCDEP_FLAGS
ASDEP=$ASDEP
ASDEP_FLAGS=$ASDEP_FLAGS
X86ASMDEP=$X86ASMDEP
X86ASMDEP_FLAGS=$X86ASMDEP_FLAGS
CC_DEPFLAGS=$CC_DEPFLAGS
AS_DEPFLAGS=$AS_DEPFLAGS
X86ASM_DEPFLAGS=$X86ASM_DEPFLAGS
HOSTCC=$host_cc
HOSTLD=$host_ld
HOSTCFLAGS=$host_cflags
HOSTCPPFLAGS=$host_cppflags
HOSTEXESUF=$HOSTEXESUF
HOSTLDFLAGS=$host_ldflags
HOSTEXTRALIBS=$host_extralibs
DEPHOSTCC=$host_cc
DEPHOSTCCFLAGS=$DEPHOSTCCFLAGS \$(HOSTCCFLAGS)
HOSTCCDEP=$HOSTCCDEP
HOSTCCDEP_FLAGS=$HOSTCCDEP_FLAGS
HOSTCC_DEPFLAGS=$HOSTCC_DEPFLAGS
HOSTCC_C=$HOSTCC_C
HOSTCC_O=$HOSTCC_O
HOSTLD_O=$HOSTLD_O
TARGET_EXEC=$target_exec $target_exec_args
TARGET_PATH=$target_path
TARGET_SAMPLES=${target_samples:-\$(SAMPLES)}
CFLAGS-ffplay=${sdl2_cflags}
CFLAGS_HEADERS=$CFLAGS_HEADERS
ZLIB=$($ldflags_filter -lz)
LIB_INSTALL_EXTRA_CMD=$LIB_INSTALL_EXTRA_CMD
EXTRALIBS=$extralibs
COMPAT_OBJS=$compat_objs
INSTALL=$install
LIBTARGET=${LIBTARGET}
SLIBNAME=${SLIBNAME}
SLIBNAME_WITH_VERSION=${SLIBNAME_WITH_VERSION}
SLIBNAME_WITH_MAJOR=${SLIBNAME_WITH_MAJOR}
SLIB_CREATE_DEF_CMD=${SLIB_CREATE_DEF_CMD}
SLIB_EXTRA_CMD=${SLIB_EXTRA_CMD}
SLIB_INSTALL_NAME=${SLIB_INSTALL_NAME}
SLIB_INSTALL_LINKS=${SLIB_INSTALL_LINKS}
SLIB_INSTALL_EXTRA_LIB=${SLIB_INSTALL_EXTRA_LIB}
SLIB_INSTALL_EXTRA_SHLIB=${SLIB_INSTALL_EXTRA_SHLIB}
VERSION_SCRIPT_POSTPROCESS_CMD=${VERSION_SCRIPT_POSTPROCESS_CMD}
SAMPLES:=${samples:-\$(FATE_SAMPLES)}
NOREDZONE_FLAGS=$noredzone_flags
LIBFUZZER_PATH=$libfuzzer_path
IGNORE_TESTS=$ignore_tests
EOF
map 'eval echo "${v}_FFLIBS=\$${v}_deps" >> ffbuild/config.mak' $LIBRARY_LIST
print_program_extralibs(){
eval "program_extralibs=\$${1}_extralibs"
eval echo "EXTRALIBS-${1}=${program_extralibs}" >> ffbuild/config.mak
}
map 'print_program_extralibs $v' $PROGRAM_LIST
cat > $TMPH <<EOF
/* Automatically generated by configure - do not modify! */
#ifndef FFMPEG_CONFIG_H
#define FFMPEG_CONFIG_H
#define FFMPEG_CONFIGURATION "$(c_escape $FFMPEG_CONFIGURATION)"
#define FFMPEG_LICENSE "$(c_escape $license)"
#define CONFIG_THIS_YEAR 2017
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
#define AVCONV_DATADIR "$(eval c_escape $datadir)"
#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
#define av_restrict $_restrict
#define EXTERN_PREFIX "${extern_prefix}"
#define EXTERN_ASM ${extern_prefix}
#define BUILDSUF "$build_suffix"
#define SLIBSUF "$SLIBSUF"
#define HAVE_MMX2 HAVE_MMXEXT
#define SWS_MAX_FILTER_SIZE $sws_max_filter_size
EOF
test -n "$assert_level" &&
echo "#define ASSERT_LEVEL $assert_level" >>$TMPH
test -n "$malloc_prefix" &&
echo "#define MALLOC_PREFIX $malloc_prefix" >>$TMPH
if enabled x86asm; then
append config_files $TMPASM
printf '' >$TMPASM
fi
enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
compat: msvc: Make sure the object files are included when linking statically
If building libav with -MD in the cflags (for making the MSVC compiler
generate code for using a dynamically linked libc), the system headers
that declare strtod, snprintf and vsnprintf declare the functions as
imported from a DLL. To hook up wrappers of our own for these functions,
the function names are defined to avpriv_*, so that the calling code
within libav calls the wrappers instead. Since these functions
are declared to be imported from DLLs, the calling code expects to
load them from DLL import function pointers (creating references to
_imp__avpriv_strtod instead of directly to avpriv_strtod). If the
libav libraries are not built as DLLs, no such function pointers (as
the calling code expects) are created.
The linker can fix this up automatically in some cases (producing
warnings LNK4217 and LNK4049), if the object files are already
included. By telling the linker to try to include those symbols
(without the _imp prefix as the calling code ends up using),
we get the object files included, so that the linker can do the
automatic fixup. This is done via config.h, so that all (or at least
most) of the object files in our libraries force including the compat
files, to make sure they are included regardless of what files from our
static libraries actually are included.
Signed-off-by: Martin Storsjö <martin@martin.st>
12 years ago
mkdir -p doc
mkdir -p tests
mkdir -p tests/api
echo "@c auto-generated by configure - do not modify! " > doc/config.texi
print_config ARCH_ "$config_files" $ARCH_LIST
print_config HAVE_ "$config_files" $HAVE_LIST
print_config CONFIG_ "$config_files" $CONFIG_LIST \
$CONFIG_EXTRA \
$ALL_COMPONENTS \
echo "#endif /* FFMPEG_CONFIG_H */" >> $TMPH
echo "endif # FFMPEG_CONFIG_MAK" >> ffbuild/config.mak
# Do not overwrite an unchanged config.h to avoid superfluous rebuilds.
cp_if_changed $TMPH config.h
touch ffbuild/.config
enabled x86asm && cp_if_changed $TMPASM config.asm
cat > $TMPH <<EOF
/* Generated by ffconf */
#ifndef AVUTIL_AVCONFIG_H
#define AVUTIL_AVCONFIG_H
EOF
print_config AV_HAVE_ $TMPH $HAVE_LIST_PUB
echo "#endif /* AVUTIL_AVCONFIG_H */" >> $TMPH
cp_if_changed $TMPH libavutil/avconfig.h
# generate the lists of enabled components
print_enabled_components(){
file=$1
struct_name=$2
name=$3
shift 3
echo "static const $struct_name *$name[] = {" > $TMPH
for c in $*; do
enabled $c && printf " &ff_%s,\n" $c >> $TMPH
done
echo " NULL };" >> $TMPH
cp_if_changed $TMPH $file
}
print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
if test -n "$WARNINGS"; then
printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
enabled fatal_warnings && exit 1
fi
# Settings for pkg-config files
cat > ffbuild/config.sh <<EOF
# Automatically generated by configure - do not modify!
shared=$shared
build_suffix=$build_suffix
prefix=$prefix
libdir=$libdir
incdir=$incdir
rpath=$(enabled rpath && echo "-Wl,-rpath,\${libdir}")
source_path=${source_path}
LIBPREF=${LIBPREF}
LIBSUF=${LIBSUF}
extralibs_avutil="$LIBRT $LIBM"
extralibs_avcodec="$extralibs"
extralibs_avformat="$extralibs"
extralibs_avdevice="$extralibs"
extralibs_avfilter="$extralibs"
extralibs_avresample="$LIBM"
extralibs_postproc=""
extralibs_swscale="$LIBM"
extralibs_swresample="$LIBM $LIBSOXR"
EOF
for lib in $LIBRARY_LIST; do
lib_deps="$(eval echo \$${lib}_deps)"
echo ${lib}_deps=\"$lib_deps\" >> ffbuild/config.sh
done
