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#!/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
--disable-autodetect disable automatically detected external libraries [no]
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
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 (deprecated) [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.
--disable-alsa disable ALSA support [autodetect]
--disable-appkit disable Apple AppKit framework [autodetect]
--disable-avfoundation disable Apple AVFoundation framework [autodetect]
--enable-avisynth enable reading of AviSynth script files [no]
--disable-bzlib disable bzlib [autodetect]
--disable-coreimage disable Apple CoreImage framework [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 or libtls is not used [no]
--disable-iconv disable iconv [autodetect]
--enable-jni enable JNI support [no]
--enable-ladspa enable LADSPA audio filtering [no]
--enable-libaom enable AV1 video encoding/decoding via libaom [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-libcodec2 enable codec2 en/decoding using libcodec2 [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-libjack enable JACK audio sound server [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-libsrt enable Haivision SRT protocol via libsrt [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-libtls enable LibreSSL (via libtls), needed for https support
if openssl or gnutls is not used [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-libxml2 enable XML parsing using the C library libxml2 [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]
--enable-lv2 enable LV2 audio filtering [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 processing [no]
--enable-opengl enable OpenGL rendering [no]
--enable-openssl enable openssl, needed for https support
if gnutls or libtls is not used [no]
--disable-sndio disable sndio support [autodetect]
--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-amf disable AMF video encoding code [autodetect]
--disable-audiotoolbox disable Apple AudioToolbox 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]
--disable-ffnvcodec disable dynamically linked Nvidia code [autodetect]
--enable-libdrm enable DRM code (Linux) [no]
--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-nvdec disable Nvidia video decoding acceleration (via hwaccel) [autodetect]
--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]
--enable-rkmpp enable Rockchip Media Process Platform code [no]
--disable-v4l2-m2m disable V4L2 mem2mem code [autodetect]
--disable-vaapi disable Video Acceleration API (mainly Unix/Intel) 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 [$target_os]
--target-exec=CMD command to run executables on target
--target-path=DIR path to view of build directory on target
--target-samples=DIR path to samples directory on target
--tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
--toolchain=NAME set tool defaults according to NAME
(gcc-asan, clang-asan, gcc-msan, clang-msan,
gcc-tsan, clang-tsan, gcc-usan, clang-usan,
valgrind-massif, valgrind-memcheck,
msvc, icl, gcov, llvm-cov, hardened)
--nm=NM use nm tool NM [$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 [$LDEXEFLAGS]
--extra-ldsoflags=ELDFLAGS add ELDFLAGS to LDSOFLAGS [$LDSOFLAGS]
--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 [$sws_max_filter_size_default]
Optimization options (experts only):
--disable-asm disable all assembly optimizations
--disable-altivec disable AltiVec optimizations
--disable-vsx disable VSX optimizations
--disable-power8 disable POWER8 optimizations
--disable-amd3dnow disable 3DNow! optimizations
--disable-amd3dnowext disable 3DNow! extended optimizations
--disable-mmx disable MMX optimizations
--disable-mmxext disable MMXEXT optimizations
--disable-sse disable SSE optimizations
--disable-sse2 disable SSE2 optimizations
--disable-sse3 disable SSE3 optimizations
--disable-ssse3 disable SSSE3 optimizations
--disable-sse4 disable SSE4 optimizations
--disable-sse42 disable SSE4.2 optimizations
--disable-avx disable AVX optimizations
--disable-xop disable XOP optimizations
--disable-fma3 disable FMA3 optimizations
--disable-fma4 disable FMA4 optimizations
--disable-avx2 disable AVX2 optimizations
--disable-avx512 disable AVX-512 optimizations
--disable-aesni disable AESNI optimizations
--disable-armv5te disable armv5te optimizations
--disable-armv6 disable armv6 optimizations
--disable-armv6t2 disable armv6t2 optimizations
--disable-vfp disable VFP optimizations
--disable-neon disable NEON optimizations
--disable-inline-asm disable use of inline assembly
--disable-x86asm disable use of standalone x86 assembly
--disable-mipsdsp disable MIPS DSP ASE R1 optimizations
--disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
--disable-msa disable MSA optimizations
--disable-mipsfpu disable floating point MIPS optimizations
--disable-mmi disable Loongson SIMD optimizations
--disable-fast-unaligned consider unaligned accesses slow
Developer options (useful when working on FFmpeg itself):
--disable-debug disable debugging symbols
--enable-debug=LEVEL set the debug level [$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
--enable-linux-perf enable Linux Performance Monitor API
NOTE: Object files are built at the place where configure is launched.
EOF
exit 0
}
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
}
remove_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_sanitized(){
var=$1
shift
eval $(sanitize_var_name "$var")='$*'
}
get_sanitized(){
eval echo \$$(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_sanitized(){
for var; do
enable $(sanitize_var_name $var)
done
}
disable_sanitized(){
for var; do
disable $(sanitize_var_name $var)
done
}
do_enable_deep(){
for var; do
enabled $var && continue
set -- $var
eval enable_deep \$${var}_select
var=$1
eval enable_deep_weak \$${var}_suggest
done
}
enable_deep(){
do_enable_deep $*
enable $*
}
enable_deep_weak(){
for var; do
disabled $var && continue
set -- $var
do_enable_deep $var
var=$1
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 = $value ] && return 0
done
return 1
}
# The cfg loop is very hot (several thousands iterations), and in bash also
# potentialy quite slow. Try to abort the iterations early, preferably without
# calling functions. 70%+ of the time cfg is already done or without deps.
check_deps(){
for cfg; do
eval [ x\$${cfg}_checking = xdone ] && continue
eval [ x\$${cfg}_checking = xinprogress ] && die "Circular dependency for $cfg."
eval "
dep_all=\$${cfg}_deps
dep_any=\$${cfg}_deps_any
dep_con=\$${cfg}_conflict
dep_sel=\$${cfg}_select
dep_sgs=\$${cfg}_suggest
dep_ifa=\$${cfg}_if
dep_ifn=\$${cfg}_if_any
"
# most of the time here $cfg has no deps - avoid costly no-op work
if [ "$dep_all$dep_any$dep_con$dep_sel$dep_sgs$dep_ifa$dep_ifn" ]; then
eval ${cfg}_checking=inprogress
set -- $cfg "$dep_all" "$dep_any" "$dep_con" "$dep_sel" "$dep_sgs" "$dep_ifa" "$dep_ifn"
check_deps $dep_all $dep_any $dep_con $dep_sel $dep_sgs $dep_ifa $dep_ifn
cfg=$1; dep_all=$2; dep_any=$3; dep_con=$4; dep_sel=$5 dep_sgs=$6; dep_ifa=$7; dep_ifn=$8
[ -n "$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_all $dep_con || { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some conflicting dependencies are unsatisfied: $dep_con"; }
disabled_any $dep_sel && { disable $cfg && requested $cfg && die "ERROR: $cfg requested, but some selected dependency is unsatisfied: $dep_sel"; }
enabled $cfg && enable_deep_weak $dep_sel $dep_sgs
for dep in $dep_all $dep_any $dep_sel $dep_sgs; do
# filter out library deps, these do not belong in extralibs
is_in $dep $LIBRARY_LIST && continue
enabled $dep && eval append ${cfg}_extralibs ${dep}_extralibs
done
fi
eval ${cfg}_checking=done
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\""
}
reverse () {
eval '
reverse_out=
for v in $'$1'; do
reverse_out="$v $reverse_out"
done
'$1'=$reverse_out
'
}
# keeps the last occurence of each non-unique item
unique(){
unique_out=
eval unique_in=\$$1
reverse unique_in
for v in $unique_in; do
# " $unique_out" +space such that every item is surrounded with spaces
case " $unique_out" in *" $v "*) continue; esac # already in list
unique_out="$unique_out$v "
done
reverse unique_out
eval $1=\$unique_out
}
resolve(){
resolve_out=
eval resolve_in=\$$1
for v in $resolve_in; do
eval 'resolve_out="$resolve_out$'$v' "'
done
eval $1=\$resolve_out
}
add_cppflags(){
append CPPFLAGS "$@"
}
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_ldsoflags(){
append LDSOFLAGS $($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' "$@"
}
test_cmd(){
log "$@"
"$@" >> $logfile 2>&1
}
test_stat(){
log test_stat "$@"
stat "$1" >> $logfile 2>&1
}
cc_o(){
eval printf '%s\\n' $CC_O
}
cc_e(){
eval printf '%s\\n' $CC_E
}
test_cc(){
log test_cc "$@"
cat > $TMPC
log_file $TMPC
test_cmd $cc $CPPFLAGS $CFLAGS "$@" $CC_C $(cc_o $TMPO) $TMPC
}
test_cxx(){
log test_cxx "$@"
cat > $TMPCPP
log_file $TMPCPP
test_cmd $cxx $CPPFLAGS $CFLAGS $CXXFLAGS "$@" $CXX_C -o $TMPO $TMPCPP
}
test_objcc(){
log test_objcc "$@"
cat > $TMPM
log_file $TMPM
test_cmd $objcc -Werror=missing-prototypes $CPPFLAGS $CFLAGS $OBJCFLAGS "$@" $OBJCC_C $(cc_o $TMPO) $TMPM
}
test_cpp(){
log test_cpp "$@"
cat > $TMPC
log_file $TMPC
test_cmd $cc $CPPFLAGS $CFLAGS "$@" $(cc_e $TMPO) $TMPC
}
as_o(){
eval printf '%s\\n' $AS_O
}
test_as(){
log test_as "$@"
cat > $TMPS
log_file $TMPS
test_cmd $as $CPPFLAGS $ASFLAGS "$@" $AS_C $(as_o $TMPO) $TMPS
}
x86asm_o(){
eval printf '%s\\n' $X86ASM_O
}
test_x86asm(){
log test_x86asm "$@"
echo "$1" > $TMPASM
log_file $TMPASM
shift
test_cmd $x86asmexe $X86ASMFLAGS -Werror "$@" $(x86asm_o $TMPO) $TMPASM
}
check_cmd(){
log check_cmd "$@"
cmd=$1
disabled $cmd && return
disable $cmd
test_cmd $@ && enable $cmd
}
check_as(){
log check_as "$@"
name=$1
code=$2
shift 2
disable $name
test_as $@ <<EOF && enable $name
$code
EOF
}
check_inline_asm(){
log check_inline_asm "$@"
name="$1"
code="$2"
shift 2
disable $name
test_cc "$@" <<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
test_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\""
check_as ${1}_external "$2"
}
check_x86asm(){
log check_x86asm "$@"
name=$1
shift
disable $name
test_x86asm "$@" && enable $name
}
ld_o(){
eval printf '%s\\n' $LD_O
}
test_ld(){
log test_ld "$@"
type=$1
shift 1
flags=$(filter_out '-l*|*.so' $@)
libs=$(filter '-l*|*.so' $@)
test_$type $($cflags_filter $flags) || return
flags=$($ldflags_filter $flags)
libs=$($ldflags_filter $libs)
test_cmd $ld $LDFLAGS $LDEXEFLAGS $flags $(ld_o $TMPE) $TMPO $libs $extralibs
}
check_ld(){
log check_ld "$@"
type=$1
name=$2
shift 2
disable $name
test_ld $type $@ && enable $name
}
print_include(){
hdr=$1
test "${hdr%.h}" = "${hdr}" &&
echo "#include $hdr" ||
echo "#include <$hdr>"
}
test_code(){
log test_code "$@"
check=$1
headers=$2
code=$3
shift 3
{
for hdr in $headers; do
print_include $hdr
done
echo "int main(void) { $code; return 0; }"
} | test_$check "$@"
}
check_cppflags(){
log check_cppflags "$@"
test_cpp "$@" <<EOF && append CPPFLAGS "$@"
#include <stdlib.h>
EOF
}
test_cflags(){
log test_cflags "$@"
set -- $($cflags_filter "$@")
test_cc "$@" <<EOF
int x;
EOF
}
check_cflags(){
log check_cflags "$@"
test_cflags "$@" && add_cflags "$@"
}
check_cxxflags(){
log check_cxxflags "$@"
set -- $($cflags_filter "$@")
test_cxx "$@" <<EOF && append CXXFLAGS "$@"
int x;
EOF
}
test_objcflags(){
log test_objcflags "$@"
set -- $($objcflags_filter "$@")
test_objcc "$@" <<EOF
int x;
EOF
}
check_objcflags(){
log check_objcflags "$@"
test_objcflags "$@" && add_objcflags "$@"
}
test_ldflags(){
log test_ldflags "$@"
set -- $($ldflags_filter "$@")
test_ld "cc" "$@" <<EOF
int main(void){ return 0; }
EOF
}
check_ldflags(){
log check_ldflags "$@"
test_ldflags "$@" && add_ldflags "$@"
}
test_stripflags(){
log test_stripflags "$@"
# call test_cc to get a fresh TMPO
test_cc <<EOF
int main(void) { return 0; }
EOF
test_cmd $strip $ASMSTRIPFLAGS "$@" $TMPO
}
check_stripflags(){
log check_stripflags "$@"
test_stripflags "$@" && add_stripflags "$@"
}
check_header(){
log check_header "$@"
headers=$1
shift
disable_sanitized $headers
{
for hdr in $headers; do
print_include $hdr
done
echo "int x;"
} | test_cpp "$@" && enable_sanitized $headers
}
check_header_objcc(){
log check_header_objcc "$@"
rm -f -- "$TMPO"
header=$1
shift
disable_sanitized $header
{
echo "#include <$header>"
echo "int main(void) { return 0; }"
} | test_objcc && test_stat "$TMPO" && enable_sanitized $header
}
check_apple_framework(){
log check_apple_framework "$@"
framework="$1"
name="$(tolower $framework)"
header="${framework}/${framework}.h"
disable $name
check_header_objcc $header &&
enable $name && eval ${name}_extralibs='"-framework $framework"'
}
check_func(){
log check_func "$@"
func=$1
shift
disable $func
test_ld "cc" "$@" <<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 $func
test_ld "cc" "$@" <<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 $func
test_ld "cc" "$@" <<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; }"
} | test_ld "cc" "$@" && enable $funcs && enable_sanitized $headers
}
check_class_headers_cpp(){
log check_class_headers_cpp "$@"
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 $i + 1)
done
echo "return 0; }"
} | test_ld "cxx" "$@" && enable $funcs && enable_sanitized $headers
}
test_cpp_condition(){
log test_cpp_condition "$@"
header=$1
condition=$2
shift 2
test_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
check_cpp_condition(){
log check_cpp_condition "$@"
name=$1
shift 1
disable $name
test_cpp_condition "$@" && enable $name
}
test_cflags_cc(){
log test_cflags_cc "$@"
flags=$1
header=$2
condition=$3
shift 3
set -- $($cflags_filter "$flags")
test_cc "$@" <<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 && eval ${name}_extralibs="\$@"
}
check_lib_cpp(){
log check_lib_cpp "$@"
name="$1"
headers="$2"
classes="$3"
shift 3
disable $name
check_class_headers_cpp "$headers" "$classes" "$@" &&
enable $name && eval ${name}_extralibs="\$@"
}
test_pkg_config(){
log test_pkg_config "$@"
name="$1"
pkg_version="$2"
pkg="${2%% *}"
headers="$3"
funcs="$4"
shift 4
disable $name
test_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 $pkg_libs "$@" &&
enable $name &&
set_sanitized "${name}_cflags" $pkg_cflags &&
set_sanitized "${name}_extralibs" $pkg_libs
}
check_pkg_config(){
log check_pkg_config "$@"
name="$1"
test_pkg_config "$@" &&
eval add_cflags \$${name}_cflags
}
test_exec(){
test_ld "cc" "$@" && { enabled cross_compile || $TMPE >> $logfile 2>&1; }
}
check_exec_crash(){
log check_exec_crash "$@"
code=$(cat)
# exit() is not async signal safe. _Exit (C99) and _exit (POSIX)
# are safe but may not be available everywhere. Thus we use
# raise(SIGTERM) instead. The check is run in a subshell so we
# can redirect the "Terminated" message from the shell. SIGBUS
# is not defined by standard C so it is used conditionally.
(test_exec "$@") >> $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=$2
shift 2
disable_sanitized "$type"
test_code cc "$headers" "$type v" "$@" && enable_sanitized "$type"
}
check_struct(){
log check_struct "$@"
headers=$1
struct=$2
member=$3
shift 3
disable_sanitized "${struct}_${member}"
test_code cc "$headers" "const void *p = &(($struct *)0)->$member" "$@" &&
enable_sanitized "${struct}_${member}"
}
check_builtin(){
log check_builtin "$@"
name=$1
headers=$2
builtin=$3
shift 3
disable "$name"
test_code ld "$headers" "$builtin" "cc" "$@" && enable "$name"
}
check_compile_assert(){
log check_compile_assert "$@"
name=$1
headers=$2
condition=$3
shift 3
disable "$name"
test_code cc "$headers" "char c[2 * !!($condition) - 1]" "$@" && enable "$name"
}
check_cc(){
log check_cc "$@"
name=$1
shift
disable "$name"
test_code cc "$@" && enable "$name"
}
require(){
log require "$@"
name_version="$1"
name="${1%% *}"
shift
check_lib $name "$@" || die "ERROR: $name_version not found"
}
require_cc(){
log require_cc "$@"
name="$1"
shift
test_code cc "$@" || die "ERROR: $name failed"
}
require_cpp(){
name="$1"
headers="$2"
classes="$3"
shift 3
check_lib_cpp "$headers" "$classes" "$@" || die "ERROR: $name not found"
}
require_header(){
log require_header "$@"
headers="$1"
check_header "$@" || die "ERROR: $headers not found"
}
require_cpp_condition(){
log require_cpp_condition "$@"
condition="$2"
test_cpp_condition "$@" || die "ERROR: $condition not satisfied"
}
require_pkg_config(){
log require_pkg_config "$@"
pkg_version="$2"
check_pkg_config "$@" || die "ERROR: $pkg_version not found using pkg-config$pkg_config_fail_message"
}
hostcc_e(){
eval printf '%s\\n' $HOSTCC_E
}
hostcc_o(){
eval printf '%s\\n' $HOSTCC_O
}
test_host_cc(){
log test_host_cc "$@"
cat > $TMPC
log_file $TMPC
test_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
}
test_host_cpp(){
log test_host_cpp "$@"
cat > $TMPC
log_file $TMPC
test_cmd $host_cc $host_cppflags $host_cflags "$@" $(hostcc_e $TMPO) $TMPC
}
check_host_cppflags(){
log check_host_cppflags "$@"
test_host_cpp "$@" <<EOF && append host_cppflags "$@"
#include <stdlib.h>
EOF
}
check_host_cflags(){
log check_host_cflags "$@"
set -- $($host_cflags_filter "$@")
test_host_cc "$@" <<EOF && append host_cflags "$@"
int x;
EOF
}
test_host_cpp_condition(){
log test_host_cpp_condition "$@"
header=$1
condition=$2
shift 2
test_host_cpp "$@" <<EOF
#include <$header>
#if !($condition)
#error "unsatisfied condition: $condition"
#endif
EOF
}
check_host_cpp_condition(){
log check_host_cpp_condition "$@"
name=$1
shift 1
disable $name
test_host_cpp_condition "$@" && enable $name
}
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
"
COMPONENT_LIST="
$AVCODEC_COMPONENTS
$AVDEVICE_COMPONENTS
$AVFILTER_COMPONENTS
$AVFORMAT_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
vaapi_encode_example
vaapi_transcode_example
"
EXTERNAL_AUTODETECT_LIBRARY_LIST="
alsa
appkit
avfoundation
bzlib
coreimage
iconv
libxcb
libxcb_shm
libxcb_shape
libxcb_xfixes
lzma
schannel
sdl2
securetransport
sndio
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
libtls
"
EXTERNAL_LIBRARY_VERSION3_LIST="
gmp
libopencore_amrnb
libopencore_amrwb
libvmaf
libvo_amrwbenc
rkmpp
"
EXTERNAL_LIBRARY_GPLV3_LIST="
libsmbclient
"
EXTERNAL_LIBRARY_LIST="
$EXTERNAL_LIBRARY_GPL_LIST
$EXTERNAL_LIBRARY_NONFREE_LIST
$EXTERNAL_LIBRARY_VERSION3_LIST
$EXTERNAL_LIBRARY_GPLV3_LIST
chromaprint
gcrypt
gnutls
jni
ladspa
libaom
libass
libbluray
libbs2b
libcaca
libcelt
libcodec2
libdc1394
libdrm
libflite
libfontconfig
libfreetype
libfribidi
libgme
libgsm
libiec61883
libilbc
libjack
libkvazaar
libmodplug
libmp3lame
libmysofa
libopencv
libopenh264
libopenjpeg
libopenmpt
libopus
libpulse
librsvg
librtmp
libshine
libsmbclient
libsnappy
libsoxr
libspeex
libsrt
libssh
libtesseract
libtheora
libtwolame
libv4l2
libvorbis
libvpx
libwavpack
libwebp
libxml2
libzimg
libzmq
libzvbi
lv2
mediacodec
openal
opengl
"
HWACCEL_AUTODETECT_LIBRARY_LIST="
amf
audiotoolbox
crystalhd
cuda
cuvid
d3d11va
dxva2
ffnvcodec
nvdec
nvenc
vaapi
vdpau
videotoolbox
v4l2_m2m
xvmc
"
# catchall list of things that require external libs to link
EXTRALIBS_LIST="
cpu_init
cws2fws
"
HWACCEL_LIBRARY_NONFREE_LIST="
cuda_sdk
libnpp
"
HWACCEL_LIBRARY_LIST="
$HWACCEL_LIBRARY_NONFREE_LIST
libmfx
mmal
omx
opencl
"
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
"
# this list should be kept in linking order
LIBRARY_LIST="
avdevice
avfilter
swscale
postproc
avformat
avcodec
swresample
avresample
avutil
"
LICENSE_LIST="
gpl
nonfree
version3
"
PROGRAM_LIST="
ffplay
ffprobe
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
$EXTERNAL_AUTODETECT_LIBRARY_LIST
$HWACCEL_LIBRARY_LIST
$HWACCEL_AUTODETECT_LIBRARY_LIST
$FEATURE_LIST
$LICENSE_LIST
$LIBRARY_LIST
$PROGRAM_LIST
$SUBSYSTEM_LIST
autodetect
fontconfig
linux_perf
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
avx512
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
simd_align_16
simd_align_32
simd_align_64
"
BUILTIN_LIST="
atomic_cas_ptr
machine_rw_barrier
MemoryBarrier
mm_empty
rdtsc
sem_timedwait
sync_val_compare_and_swap
"
HAVE_LIST_CMDLINE="
inline_asm
symver
x86asm
"
HAVE_LIST_PUB="
bigendian
fast_unaligned
"
HEADERS_LIST="
arpa_inet_h
asm_types_h
cdio_paranoia_h
cdio_paranoia_paranoia_h
cuda_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
dxgidebug_h
dxva_h
ES2_gl_h
gsm_h
io_h
linux_perf_event_h
machine_ioctl_bt848_h
machine_ioctl_meteor_h
malloc_h
opencv2_core_core_c_h
OpenGL_gl3_h
poll_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_FEATURES="
dos_paths
libc_msvcrt
MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS
section_data_rel_ro
threads
uwp
winrt
"
SYSTEM_FUNCS="
access
aligned_malloc
arc4random
clock_gettime
closesocket
CommandLineToArgvW
fcntl
getaddrinfo
gethrtime
getopt
GetProcessAffinityMask
GetProcessMemoryInfo
GetProcessTimes
getrusage
GetSystemTimeAsFileTime
gettimeofday
glob
glXGetProcAddress
gmtime_r
inet_aton
isatty
kbhit
localtime_r
lstat
lzo1x_999_compress
mach_absolute_time
MapViewOfFile
memalign
mkstemp
mmap
mprotect
nanosleep
PeekNamedPipe
posix_memalign
pthread_cancel
sched_getaffinity
SecItemImport
SetConsoleTextAttribute
SetConsoleCtrlHandler
setmode
setrlimit
Sleep
strerror_r
sysconf
sysctl
usleep
UTGetOSTypeFromString
VirtualAlloc
wglGetProcAddress
"
SYSTEM_LIBRARIES="
bcrypt
vaapi_drm
vaapi_x11
vdpau_x11
"
TOOLCHAIN_FEATURES="
as_arch_directive
as_dn_directive
as_fpu_directive
as_func
as_object_arch
asm_mod_q
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="
kCMVideoCodecType_HEVC
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
$BUILTIN_LIST
$COMPLEX_FUNCS
$HAVE_LIST_CMDLINE
$HAVE_LIST_PUB
$HEADERS_LIST
$INTRINSICS_LIST
$MATH_FUNCS
$SYSTEM_FEATURES
$SYSTEM_FUNCS
$SYSTEM_LIBRARIES
$THREADS_LIST
$TOOLCHAIN_FEATURES
$TYPES_LIST
makeinfo
makeinfo_html
opencl_d3d11
opencl_drm_arm
opencl_drm_beignet
opencl_dxva2
opencl_vaapi_beignet
opencl_vaapi_intel_media
perl
pod2man
texi2html
"
# options emitted with CONFIG_ prefix but not available on the command line
CONFIG_EXTRA="
aandcttables
ac3dsp
adts_header
audio_frame_queue
audiodsp
blockdsp
bswapdsp
cabac
cbs
cbs_h264
cbs_h265
cbs_mpeg2
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
qsvvpp
rangecoder
riffdec
riffenc
rtpdec
rtpenc_chain
rv34dsp
sinewin
snappy
srtp
startcode
texturedsp
texturedspenc
tpeldsp
vaapi_1
vaapi_encode
vc1dsp
videodsp
vp3dsp
vp56dsp
vp8dsp
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
nvcc
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
altivec_deps="ppc"
dcbzl_deps="ppc"
ldbrx_deps="ppc"
ppc4xx_deps="ppc"
vsx_deps="altivec"
power8_deps="vsx"
loongson2_deps="mips"
loongson3_deps="mips"
mips32r2_deps="mips"
mips32r5_deps="mips"
mips32r6_deps="mips"
mips64r2_deps="mips"
mips64r6_deps="mips"
mipsfpu_deps="mips"
mipsdsp_deps="mips"
mipsdspr2_deps="mips"
mmi_deps="mips"
msa_deps="mipsfpu"
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"
avx512_deps="avx2"
mmx_external_deps="x86asm"
mmx_inline_deps="inline_asm x86"
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 ${ext}_inline"'
done
aligned_stack_if_any="aarch64 ppc x86"
fast_64bit_if_any="aarch64 alpha ia64 mips64 parisc64 ppc64 sparc64 x86_64"
fast_clz_if_any="aarch64 alpha avr32 mips ppc x86"
fast_unaligned_if_any="aarch64 ppc x86"
simd_align_16_if_any="altivec neon sse"
simd_align_32_if_any="avx"
simd_align_64_if_any="avx512"
# system capabilities
linux_perf_deps="linux_perf_event_h"
symver_if_any="symver_asm_label symver_gnu_asm"
valgrind_backtrace_conflict="optimizations"
valgrind_backtrace_deps="valgrind_valgrind_h"
# threading support
atomics_gcc_if="sync_val_compare_and_swap"
atomics_suncc_if="atomic_cas_ptr machine_rw_barrier"
atomics_win32_if="MemoryBarrier"
atomics_native_if_any="$ATOMICS_LIST"
w32threads_deps="atomics_native"
threads_if_any="$THREADS_LIST"
# subsystems
cbs_h264_select="cbs golomb"
cbs_h265_select="cbs golomb"
cbs_mpeg2_select="cbs"
dct_select="rdft"
dirac_parse_select="golomb"
error_resilience_select="me_cmp"
faandct_deps="faan"
faandct_select="fdctdsp"
faanidct_deps="faan"
faanidct_select="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="adts_header mdct15 mdct sinewin"
aac_fixed_decoder_select="adts_header 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_deps="zlib"
apng_encoder_deps="zlib"
apng_encoder_select="llvidencdsp"
aptx_decoder_select="audio_frame_queue"
aptx_encoder_select="audio_frame_queue"
aptx_hd_decoder_select="audio_frame_queue"
aptx_hd_encoder_select="audio_frame_queue"
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_deps="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_deps="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_deps="zlib"
flashsv2_encoder_deps="zlib"
flashsv_decoder_deps="zlib"
flashsv_encoder_deps="zlib"
flv_decoder_select="h263_decoder"
flv_encoder_select="h263_encoder"
fourxm_decoder_select="blockdsp bswapdsp"
fraps_decoder_select="bswapdsp huffman"
g2m_decoder_deps="zlib"
g2m_decoder_select="blockdsp idctdsp jpegtables"
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"
magicyuv_encoder_select="llvidencdsp"
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"
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_deps="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_deps="zlib"
png_encoder_deps="zlib"
png_encoder_select="llvidencdsp"
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_deps="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_deps="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_deps="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_deps="zlib"
tdsc_decoder_select="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_deps="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"
vc1image_decoder_select="vc1_decoder"
vorbis_decoder_select="mdct"
vorbis_encoder_select="audio_frame_queue 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 vp9_superframe_split_bsf"
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_deps="zlib"
zlib_decoder_deps="zlib"
zlib_encoder_deps="zlib"
zmbv_decoder_deps="zlib"
zmbv_encoder_deps="zlib"
# hardware accelerators
crystalhd_deps="libcrystalhd_libcrystalhd_if_h"
cuda_deps="ffnvcodec"
cuvid_deps="ffnvcodec"
d3d11va_deps="dxva_h ID3D11VideoDecoder ID3D11VideoContext"
dxva2_deps="dxva2api_h DXVA2_ConfigPictureDecode ole32 user32"
ffnvcodec_deps_any="libdl LoadLibrary"
nvdec_deps="ffnvcodec"
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_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_nvdec_hwaccel_deps="nvdec"
h264_nvdec_hwaccel_select="h264_decoder"
h264_vaapi_hwaccel_deps="vaapi"
h264_vaapi_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_d3d11va_hwaccel_deps="d3d11va DXVA_PicParams_HEVC"
hevc_d3d11va_hwaccel_select="hevc_decoder"
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_nvdec_hwaccel_deps="nvdec"
hevc_nvdec_hwaccel_select="hevc_decoder"
hevc_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferHEVC"
hevc_vaapi_hwaccel_select="hevc_decoder"
hevc_vdpau_hwaccel_deps="vdpau VdpPictureInfoHEVC"
hevc_vdpau_hwaccel_select="hevc_decoder"
hevc_videotoolbox_hwaccel_deps="videotoolbox"
hevc_videotoolbox_hwaccel_select="hevc_decoder"
mjpeg_nvdec_hwaccel_deps="nvdec"
mjpeg_nvdec_hwaccel_select="mjpeg_decoder"
mjpeg_vaapi_hwaccel_deps="vaapi"
mjpeg_vaapi_hwaccel_select="mjpeg_decoder"
mpeg_xvmc_hwaccel_deps="xvmc"
mpeg_xvmc_hwaccel_select="mpeg2video_decoder"
mpeg1_nvdec_hwaccel_deps="nvdec"
mpeg1_nvdec_hwaccel_select="mpeg1video_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_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_nvdec_hwaccel_deps="nvdec"
mpeg2_nvdec_hwaccel_select="mpeg2video_decoder"
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_nvdec_hwaccel_deps="nvdec"
mpeg4_nvdec_hwaccel_select="mpeg4_decoder"
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_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_nvdec_hwaccel_deps="nvdec"
vc1_nvdec_hwaccel_select="vc1_decoder"
vc1_vaapi_hwaccel_deps="vaapi"
vc1_vaapi_hwaccel_select="vc1_decoder"
vc1_vdpau_hwaccel_deps="vdpau"
vc1_vdpau_hwaccel_select="vc1_decoder"
vp8_nvdec_hwaccel_deps="nvdec"
vp8_nvdec_hwaccel_select="vp8_decoder"
vp8_vaapi_hwaccel_deps="vaapi VAPictureParameterBufferVP8"
vp8_vaapi_hwaccel_select="vp8_decoder"
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_nvdec_hwaccel_deps="nvdec"
vp9_nvdec_hwaccel_select="vp9_decoder"
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_nvdec_hwaccel_select="vc1_nvdec_hwaccel"
wmv3_vaapi_hwaccel_select="vc1_vaapi_hwaccel"
wmv3_vdpau_hwaccel_select="vc1_vdpau_hwaccel"
# hardware-accelerated codecs
omx_deps="libdl pthreads"
omx_rpi_select="omx"
qsv_deps="libmfx"
qsvdec_select="qsv"
qsvenc_select="qsv"
qsvvpp_select="qsv"
vaapi_encode_deps="vaapi"
v4l2_m2m_deps_any="linux_videodev2_h"
hwupload_cuda_filter_deps="ffnvcodec"
scale_npp_filter_deps="ffnvcodec libnpp"
scale_cuda_filter_deps="cuda_sdk"
thumbnail_cuda_filter_deps="cuda_sdk"
amf_deps_any="libdl LoadLibrary"
nvenc_deps="ffnvcodec"
nvenc_deps_any="libdl LoadLibrary"
nvenc_encoder_deps="nvenc"
h263_v4l2m2m_decoder_deps="v4l2_m2m h263_v4l2_m2m"
h263_v4l2m2m_encoder_deps="v4l2_m2m h263_v4l2_m2m"
h264_amf_encoder_deps="amf"
h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
h264_cuvid_decoder_deps="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_select="h264_mp4toannexb_bsf h264_parser qsvdec"
h264_qsv_encoder_select="qsvenc"
h264_rkmpp_decoder_deps="rkmpp"
h264_rkmpp_decoder_select="h264_mp4toannexb_bsf"
h264_vaapi_encoder_deps="VAEncPictureParameterBufferH264"
h264_vaapi_encoder_select="cbs_h264 vaapi_encode"
h264_v4l2m2m_decoder_deps="v4l2_m2m h264_v4l2_m2m"
h264_v4l2m2m_encoder_deps="v4l2_m2m h264_v4l2_m2m"
hevc_amf_encoder_deps="amf"
hevc_cuvid_decoder_deps="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_select="hevc_mp4toannexb_bsf hevc_parser qsvdec"
hevc_qsv_encoder_select="hevcparse qsvenc"
hevc_rkmpp_decoder_deps="rkmpp"
hevc_rkmpp_decoder_select="hevc_mp4toannexb_bsf"
hevc_vaapi_encoder_deps="VAEncPictureParameterBufferHEVC"
hevc_vaapi_encoder_select="cbs_h265 vaapi_encode"
hevc_v4l2m2m_decoder_deps="v4l2_m2m hevc_v4l2_m2m"
hevc_v4l2m2m_encoder_deps="v4l2_m2m hevc_v4l2_m2m"
mjpeg_cuvid_decoder_deps="cuvid"
mjpeg_qsv_encoder_deps="libmfx"
mjpeg_qsv_encoder_select="qsvenc"
mjpeg_vaapi_encoder_deps="VAEncPictureParameterBufferJPEG"
mjpeg_vaapi_encoder_select="vaapi_encode jpegtables"
mpeg1_cuvid_decoder_deps="cuvid"
mpeg1_v4l2m2m_decoder_deps="v4l2_m2m mpeg1_v4l2_m2m"
mpeg2_crystalhd_decoder_select="crystalhd"
mpeg2_cuvid_decoder_deps="cuvid"
mpeg2_mmal_decoder_deps="mmal"
mpeg2_mediacodec_decoder_deps="mediacodec"
mpeg2_qsv_decoder_select="qsvdec mpegvideo_parser"
mpeg2_qsv_encoder_select="qsvenc"
mpeg2_vaapi_encoder_deps="VAEncPictureParameterBufferMPEG2"
mpeg2_vaapi_encoder_select="cbs_mpeg2 vaapi_encode"
mpeg2_v4l2m2m_decoder_deps="v4l2_m2m mpeg2_v4l2_m2m"
mpeg4_crystalhd_decoder_select="crystalhd"
mpeg4_cuvid_decoder_deps="cuvid"
mpeg4_mediacodec_decoder_deps="mediacodec"
mpeg4_mmal_decoder_deps="mmal"
mpeg4_omx_encoder_deps="omx"
mpeg4_v4l2m2m_decoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
mpeg4_v4l2m2m_encoder_deps="v4l2_m2m mpeg4_v4l2_m2m"
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="cuvid"
vc1_mmal_decoder_deps="mmal"
vc1_qsv_decoder_select="qsvdec vc1_parser"
vc1_v4l2m2m_decoder_deps="v4l2_m2m vc1_v4l2_m2m"
vp8_cuvid_decoder_deps="cuvid"
vp8_mediacodec_decoder_deps="mediacodec"
vp8_qsv_decoder_select="qsvdec vp8_parser"
vp8_rkmpp_decoder_deps="rkmpp"
vp8_vaapi_encoder_deps="VAEncPictureParameterBufferVP8"
vp8_vaapi_encoder_select="vaapi_encode"
vp8_v4l2m2m_decoder_deps="v4l2_m2m vp8_v4l2_m2m"
vp8_v4l2m2m_encoder_deps="v4l2_m2m vp8_v4l2_m2m"
vp9_cuvid_decoder_deps="cuvid"
vp9_mediacodec_decoder_deps="mediacodec"
vp9_rkmpp_decoder_deps="rkmpp"
vp9_vaapi_encoder_deps="VAEncPictureParameterBufferVP9"
vp9_vaapi_encoder_select="vaapi_encode"
vp9_v4l2m2m_decoder_deps="v4l2_m2m vp9_v4l2_m2m"
wmv3_crystalhd_decoder_select="crystalhd"
# parsers
aac_parser_select="adts_header"
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
aac_adtstoasc_bsf_select="adts_header"
eac3_core_bsf_select="ac3_parser"
filter_units_bsf_select="cbs"
h264_metadata_bsf_deps="const_nan"
h264_metadata_bsf_select="cbs_h264"
h264_redundant_pps_bsf_select="cbs_h264"
hevc_metadata_bsf_select="cbs_h265"
mjpeg2jpeg_bsf_select="jpegtables"
mpeg2_metadata_bsf_select="cbs_mpeg2"
trace_headers_bsf_select="cbs"
# external libraries
aac_at_decoder_deps="audiotoolbox"
aac_at_decoder_select="aac_adtstoasc_bsf"
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="libdl 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="pthreads"
h264_videotoolbox_encoder_select="videotoolbox_encoder"
hevc_videotoolbox_encoder_deps="pthreads"
hevc_videotoolbox_encoder_select="videotoolbox_encoder"
libaom_av1_decoder_deps="libaom"
libaom_av1_encoder_deps="libaom"
libcelt_decoder_deps="libcelt"
libcodec2_decoder_deps="libcodec2"
libcodec2_encoder_deps="libcodec2"
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 libvorbisenc"
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_suggest="coreservices"
videotoolbox_deps="corefoundation coremedia corevideo"
videotoolbox_encoder_deps="videotoolbox VTCompressionSessionPrepareToEncodeFrames"
# 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"
dash_demuxer_deps="libxml2"
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"
hls_muxer_suggest="gcrypt openssl"
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_demuxer_select="adts_header"
spdif_muxer_select="adts_header"
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
android_camera_indev_deps="android camera2ndk mediandk pthreads"
android_camera_indev_extralibs="-landroid -lcamera2ndk -lmediandk"
alsa_indev_deps="alsa"
alsa_outdev_deps="alsa"
avfoundation_indev_deps="avfoundation corevideo coremedia pthreads"
avfoundation_indev_suggest="coregraphics applicationservices"
avfoundation_indev_extralibs="-framework Foundation"
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_deps_any="libdl LoadLibrary"
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"
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="libjack"
jack_indev_deps_any="sem_timedwait dispatch_dispatch_h"
kmsgrab_indev_deps="libdrm"
lavfi_indev_deps="avfilter"
libcdio_indev_deps="libcdio"
libdc1394_indev_deps="libdc1394"
openal_indev_deps="openal"
opengl_outdev_deps="opengl"
oss_indev_deps_any="sys_soundcard_h"
oss_outdev_deps_any="sys_soundcard_h"
pulse_indev_deps="libpulse"
pulse_outdev_deps="libpulse"
sdl2_outdev_deps="sdl2"
sndio_indev_deps="sndio"
sndio_outdev_deps="sndio"
v4l2_indev_deps_any="linux_videodev2_h sys_videoio_h"
v4l2_indev_suggest="libv4l2"
v4l2_outdev_deps_any="linux_videodev2_h sys_videoio_h"
v4l2_outdev_suggest="libv4l2"
vfwcap_indev_deps="vfw32 vfwcap_defines"
xcbgrab_indev_deps="libxcb"
xcbgrab_indev_suggest="libxcb_shm libxcb_shape libxcb_xfixes"
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_conflict="librtmp_protocol"
ffrtmpcrypt_protocol_deps_any="gcrypt gmp openssl"
ffrtmpcrypt_protocol_select="tcp_protocol"
ffrtmphttp_protocol_conflict="librtmp_protocol"
ffrtmphttp_protocol_select="http_protocol"
ftp_protocol_select="tcp_protocol"
gopher_protocol_select="network"
http_protocol_select="tcp_protocol"
http_protocol_suggest="zlib"
httpproxy_protocol_select="tcp_protocol"
httpproxy_protocol_suggest="zlib"
https_protocol_select="tls_protocol"
https_protocol_suggest="zlib"
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"
libtls_conflict="openssl gnutls"
mmsh_protocol_select="http_protocol"
mmst_protocol_select="network"
libsrt_protocol_deps="libsrt"
libsrt_protocol_select="network"
rtmp_protocol_conflict="librtmp_protocol"
rtmp_protocol_select="tcp_protocol"
rtmp_protocol_suggest="zlib"
rtmpe_protocol_select="ffrtmpcrypt_protocol"
rtmpe_protocol_suggest="zlib"
rtmps_protocol_conflict="librtmp_protocol"
rtmps_protocol_select="tls_protocol"
rtmps_protocol_suggest="zlib"
rtmpt_protocol_select="ffrtmphttp_protocol"
rtmpt_protocol_suggest="zlib"
rtmpte_protocol_select="ffrtmpcrypt_protocol ffrtmphttp_protocol"
rtmpte_protocol_suggest="zlib"
rtmpts_protocol_select="ffrtmphttp_protocol https_protocol"
rtmpts_protocol_suggest="zlib"
rtp_protocol_select="udp_protocol"
schannel_conflict="openssl gnutls libtls"
sctp_protocol_deps="struct_sctp_event_subscribe struct_msghdr_msg_flags"
sctp_protocol_select="network"
securetransport_conflict="openssl gnutls libtls"
srtp_protocol_select="rtp_protocol srtp"
tcp_protocol_select="network"
tls_protocol_deps_any="gnutls openssl schannel securetransport libtls"
tls_protocol_select="tcp_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"
avgblur_opencl_filter_deps="opencl"
azmq_filter_deps="libzmq"
blackframe_filter_deps="gpl"
boxblur_filter_deps="gpl"
bs2b_filter_deps="libbs2b"
colormatrix_filter_deps="gpl"
convolution_opencl_filter_deps="opencl"
convolve_filter_deps="avcodec"
convolve_filter_select="fft"
coreimage_filter_deps="coreimage appkit"
coreimage_filter_extralibs="-framework OpenGL"
coreimagesrc_filter_deps="coreimage appkit"
coreimagesrc_filter_extralibs="-framework OpenGL"
cover_rect_filter_deps="avcodec avformat gpl"
cropdetect_filter_deps="gpl"
deconvolve_filter_deps="avcodec"
deconvolve_filter_select="fft"
deinterlace_qsv_filter_deps="libmfx"
deinterlace_vaapi_filter_deps="vaapi"
delogo_filter_deps="gpl"
denoise_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
deshake_filter_select="pixelutils"
drawtext_filter_deps="libfreetype"
drawtext_filter_suggest="libfontconfig libfribidi"
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 libdl"
frei0r_src_filter_deps="frei0r libdl"
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 libdl"
lv2_filter_deps="lv2"
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"
openclsrc_filter_deps="opencl"
overlay_opencl_filter_deps="opencl"
overlay_qsv_filter_deps="libmfx"
overlay_qsv_filter_select="qsvvpp"
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"
procamp_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
program_opencl_filter_deps="opencl"
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"
sharpness_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
showcqt_filter_deps="avcodec avformat swscale"
showcqt_filter_suggest="libfontconfig libfreetype"
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"
tonemap_filter_deps="const_nan"
unsharp_opencl_filter_deps="opencl"
uspp_filter_deps="gpl avcodec"
vaguedenoiser_filter_deps="gpl"
vidstabdetect_filter_deps="libvidstab"
vidstabtransform_filter_deps="libvidstab"
libvmaf_filter_deps="libvmaf pthreads"
zmq_filter_deps="libzmq"
zoompan_filter_deps="swscale"
zscale_filter_deps="libzimg const_nan"
scale_vaapi_filter_deps="vaapi VAProcPipelineParameterBuffer"
vpp_qsv_filter_deps="libmfx"
vpp_qsv_filter_select="qsvvpp"
# 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"
vaapi_encode_example_deps="avcodec avutil h264_vaapi_encoder"
vaapi_transcode_example_deps="avcodec avformat avutil h264_vaapi_encoder"
# EXTRALIBS_LIST
cpu_init_extralibs="pthreads_extralibs"
cws2fws_extralibs="zlib_extralibs"
# libraries, in any order
avcodec_deps="avutil"
avcodec_suggest="libm"
avcodec_select="null_bsf"
avdevice_deps="avformat avcodec avutil"
avdevice_suggest="libm"
avfilter_deps="avutil"
avfilter_suggest="libm"
avformat_deps="avcodec avutil"
avformat_suggest="libm network zlib"
avresample_deps="avutil"
avresample_suggest="libm"
avutil_suggest="clock_gettime ffnvcodec libm libdrm libmfx opencl user32 vaapi videotoolbox corefoundation corevideo coremedia bcrypt"
postproc_deps="avutil gpl"
postproc_suggest="libm"
swresample_deps="avutil"
swresample_suggest="libm libsoxr"
swscale_deps="avutil"
swscale_suggest="libm"
avcodec_extralibs="pthreads_extralibs iconv_extralibs"
avfilter_extralibs="pthreads_extralibs"
avutil_extralibs="d3d11va_extralibs nanosleep_extralibs pthreads_extralibs vaapi_drm_extralibs vaapi_x11_extralibs vdpau_x11_extralibs"
# programs
ffmpeg_deps="avcodec avfilter avformat swresample"
ffmpeg_select="aformat_filter anull_filter atrim_filter format_filter
null_filter
trim_filter"
ffmpeg_suggest="ole32 psapi shell32"
ffplay_deps="avcodec avformat swscale swresample sdl2"
ffplay_select="rdft crop_filter transpose_filter hflip_filter vflip_filter rotate_filter"
ffplay_suggest="shell32"
ffprobe_deps="avcodec avformat"
ffprobe_suggest="shell32"
# 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='${prefix}/share/man'
# toolchain
ar_default="ar"
cc_default="gcc"
cxx_default="g++"
host_cc_default="gcc"
doxygen_default="doxygen"
install="install"
ln_s_default="ln -s -f"
nm_default="nm -g"
pkg_config_default=pkg-config
ranlib_default="ranlib"
strip_default="strip"
version_script='--version-script'
objformat="elf32"
x86asmexe_default="nasm"
windres_default="windres"
nvcc_default="nvcc"
nvccflags_default="-gencode arch=compute_30,code=sm_30 -O2"
striptype="direct"
# OS
target_os_default=$(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
# internal components are enabled by default
enable $EXTRALIBS_LIST
# Avoid external, non-system, libraries getting enabled by dependency resolution
disable $EXTERNAL_LIBRARY_LIST $HWACCEL_LIBRARY_LIST
# 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_extern(){
thing=$1
pattern=$2
file=$source_path/$3
out=${4:-$thing}
sed -n "s/^[^#]*extern.*$pattern *ff_\([^ ]*\)_$thing;/\1_$out/p" "$file"
}
find_filters_extern(){
file=$source_path/$1
#sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(\w\+\);/\2_filter/p" $file
sed -E -n "s/^extern AVFilter ff_([avfsinkrc]{2,5})_([a-zA-Z0-9_]+);/\2_filter/p" $file
}
FILTER_LIST=$(find_filters_extern libavfilter/allfilters.c)
OUTDEV_LIST=$(find_things_extern muxer AVOutputFormat libavdevice/alldevices.c outdev)
INDEV_LIST=$(find_things_extern demuxer AVInputFormat libavdevice/alldevices.c indev)
MUXER_LIST=$(find_things_extern muxer AVOutputFormat libavformat/allformats.c)
DEMUXER_LIST=$(find_things_extern demuxer AVInputFormat libavformat/allformats.c)
ENCODER_LIST=$(find_things_extern encoder AVCodec libavcodec/allcodecs.c)
DECODER_LIST=$(find_things_extern decoder AVCodec libavcodec/allcodecs.c)
CODEC_LIST="
$ENCODER_LIST
$DECODER_LIST
"
PARSER_LIST=$(find_things_extern parser AVCodecParser libavcodec/parser.c)
BSF_LIST=$(find_things_extern bsf AVBitStreamFilter libavcodec/bitstream_filters.c)
HWACCEL_LIST=$(find_things_extern hwaccel AVHWAccel libavcodec/hwaccels.h)
PROTOCOL_LIST=$(find_things_extern protocol URLProtocol libavformat/protocols.c)
AVCODEC_COMPONENTS_LIST="
$BSF_LIST
$DECODER_LIST
$ENCODER_LIST
$HWACCEL_LIST
$PARSER_LIST
"
AVDEVICE_COMPONENTS_LIST="
$INDEV_LIST
$OUTDEV_LIST
"
AVFILTER_COMPONENTS_LIST="
$FILTER_LIST
"
AVFORMAT_COMPONENTS_LIST="
$DEMUXER_LIST
$MUXER_LIST
$PROTOCOL_LIST
"
ALL_COMPONENTS="
$AVCODEC_COMPONENTS_LIST
$AVDEVICE_COMPONENTS_LIST
$AVFILTER_COMPONENTS_LIST
$AVFORMAT_COMPONENTS_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-ldsoflags=*)
add_ldsoflags $optval
;;
--extra-ldlibflags=*)
warn "The --extra-ldlibflags option is only provided for compatibility and will be\n"\
"removed in the future. Use --extra-ldsoflags instead."
add_ldsoflags $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-sdl)
enable sdl2
;;
--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
if disabled autodetect; then
# Unless iconv is explicitely disabled by the user, we still want to probe
# for the iconv from the libc.
disabled iconv || enable libc_iconv
disable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
disable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
fi
# Mark specifically enabled, but normally autodetected libraries as requested.
for lib in $AUTODETECT_LIBS; do
enabled $lib && request $lib
done
#TODO: switch to $AUTODETECT_LIBS when $THREADS_LIST is supported the same way
enable_weak $EXTERNAL_AUTODETECT_LIBRARY_LIST
enable_weak $HWACCEL_AUTODETECT_LIBRARY_LIST
disabled logging && logfile=/dev/null
# command line configuration sanity checks
# 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
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; }
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"
else
license="LGPL version 2.1 or later"
fi
enabled_all gnutls openssl &&
die "GnuTLS and OpenSSL must not be enabled at the same time."
# 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
aarch64|arm64)
as_default="armasm64"
;;
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 $toolchain"
;;
esac
if test -n "$cross_prefix"; then
test -n "$arch" && test -n "$target_os" ||
die "Must specify target arch (--arch) and OS (--target-os) when cross-compiling"
enable cross_compile
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 "$tmpname"
}
elif ! test_cmd mktemp -u XXXXXX; then
# simple replacement for missing mktemp
# NOT SAFE FOR GENERAL USE
mktemp(){
tmpname="${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
}
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
}
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
}
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 $_cc --vsn 2>/dev/null | grep -Eq "ARM (C/C\+\+ )?Compiler"; then
test -d "$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 -v 2>&1 | grep -q clang && ! $_cc -? > /dev/null 2>&1; then
_type=clang
_ident=$($_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 $_cc 2>&1 | grep -q 'Microsoft.*ARM.*Assembler'; then
_type=armasm
_ident=$($_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 || { $_cc -v 2>&1 | grep -q clang && $_cc -? > /dev/null 2>&1; }; then
_type=msvc
_ident=$($_cc 2>&1 | head -n1 | tr -d '\r')
_DEPCMD='$(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 "\[D\] "; 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="$sysroot"
;;
esac
fi
if test "$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() {
test_cpp_condition stddef.h \
"defined __ARM_ARCH_${1}__ || defined __TARGET_ARCH_${2:-$1}" \
$cpuflags
}
probe_arm_arch() {
if check_arm_arch 4; then echo armv4
elif check_arm_arch 4T; then echo armv4t
elif check_arm_arch 5; then echo armv5
elif check_arm_arch 5E; then echo armv5e
elif check_arm_arch 5T; then echo armv5t
elif check_arm_arch 5TE; then echo armv5te
elif check_arm_arch 5TEJ; then echo armv5te
elif check_arm_arch 6; then echo armv6
elif check_arm_arch 6J; then echo armv6j
elif check_arm_arch 6K; then echo armv6k
elif check_arm_arch 6Z; then echo armv6z
elif check_arm_arch 6KZ; then echo armv6zk
elif check_arm_arch 6ZK; then echo armv6zk
elif check_arm_arch 6T2; then echo armv6t2
elif check_arm_arch 7; then echo armv7
elif check_arm_arch 7A 7_A; then echo armv7-a
elif check_arm_arch 7S; then echo armv7-a
elif check_arm_arch 7R 7_R; then echo armv7-r
elif check_arm_arch 7M 7_M; then echo armv7-m
elif check_arm_arch 7EM 7E_M; then echo armv7-m
elif check_arm_arch 8A 8_A; then echo armv8-a
fi
}
[ "$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
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 $cpuflags
fi
# compiler sanity check
test_exec <<EOF
int main(void){ return 0; }
EOF
if test "$?" != 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
test_cflags_cc -std=c11 ctype.h "__STDC_VERSION__ >= 201112L" &&
add_cflags -std=c11 ||
check_cflags -std=c99
check_cppflags -D_FILE_OFFSET_BITS=64
check_cppflags -D_LARGEFILE_SOURCE
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:-'sizeof(void *) > 4'}
test_code cc "" "int test[2*($expr) - 1]" &&
subarch=$arch64 || subarch=$arch32
enable $subarch
}
case "$arch" in
aarch64|alpha|ia64)
enabled shared && enable_weak pic
;;
mips)
check_64bit mips mips64 '_MIPS_SIM > 1'
enabled shared && enable_weak pic
;;
parisc)
check_64bit parisc parisc64
enabled shared && enable_weak pic
;;
ppc)
check_64bit ppc ppc64
enabled shared && enable_weak pic
;;
s390)
check_64bit s390 s390x
enabled shared && enable_weak pic
;;
sparc)
check_64bit sparc sparc64
enabled shared && enable_weak pic
;;
x86)
check_64bit x86_32 x86_64
# Treat x32 as x64 for now. Note it also needs pic if shared
test "$subarch" = "x86_32" && test_cpp_condition stddef.h 'defined(__x86_64__)' &&
subarch=x86_64 && enable x86_64 && disable x86_32
if enabled x86_64; then
enabled shared && enable_weak pic
objformat=elf64
fi
;;
esac
# OS specific
case $target_os in
aix)
SHFLAGS=-shared
add_cppflags '-I\$(SRC_PATH)/compat/aix'
enabled shared && add_ldflags -Wl,-brtl
arflags='-Xany -r -c'
striptype=""
;;
android)
disable symver
enable section_data_rel_ro
SLIB_INSTALL_NAME='$(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 && append SHFLAGS -mimpure-text
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
striptype=""
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
check_cflags -Werror=partial-availability
SLIBSUF=".dylib"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME).$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME).$(LIBMAJOR)$(SLIBSUF)'
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'
if test -n "$sysroot"; then
is_in -isysroot $cc $CPPFLAGS $CFLAGS || check_cppflags -isysroot $sysroot
is_in -isysroot $ld $LDFLAGS || check_ldflags -isysroot $sysroot
fi
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/(.+[^*])$$$$/\1*/"'
;;
msys*)
die "Native MSYS builds are discouraged, please use the MINGW environment."
;;
mingw32*|mingw64*)
target_os=mingw32
LIBTARGET=i386
if enabled x86_64; then
LIBTARGET="i386:x86-64"
elif enabled arm; then
LIBTARGET="arm"
elif enabled aarch64; then
LIBTARGET="arm64"
fi
if enabled shared; then
# Cannot build both shared and static libs when using dllimport.
disable static
fi
enabled shared && ! enabled small && test_cmd $windres --version && enable gnu_windres
enabled x86_32 && check_ldflags -Wl,--large-address-aware
shlibdir_default="$bindir_default"
SLIBPREF=""
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
if test_cmd lib.exe -list; then
SLIB_EXTRA_CMD=-'lib.exe -nologo -machine:$(LIBTARGET) -def:$$(@:$(SLIBSUF)=.def) -out:$(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib)'
if enabled x86_64; then
LIBTARGET=x64
fi
else
SLIB_EXTRA_CMD=-'$(DLLTOOL) -m $(LIBTARGET) -d $$(@:$(SLIBSUF)=.def) -l $(SUBDIR)$(SLIBNAME:$(SLIBSUF)=.lib) -D $(SLIBNAME_WITH_MAJOR)'
fi
SLIB_INSTALL_NAME='$(SLIBNAME_WITH_MAJOR)'
SLIB_INSTALL_LINKS=
SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" AR="$(AR_CMD)" NM="$(NM_CMD)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
SHFLAGS='-shared -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--disable-auto-image-base $$(@:$(SLIBSUF)=.def)'
enabled x86_64 && objformat="win64" || objformat="win32"
dlltool="${cross_prefix}dlltool"
ranlib=:
enable dos_paths
check_ldflags -Wl,--nxcompat,--dynamicbase
# Lets work around some stupidity in binutils.
# ld will strip relocations from executables even though we need them
# for dynamicbase (ASLR). Using -pie does retain the reloc section
# however ld then forgets what the entry point should be (oops) so we
# have to manually (re)set it.
if enabled x86_32; then
disabled debug && add_ldexeflags -Wl,--pic-executable,-e,_mainCRTStartup
elif enabled x86_64; then
disabled debug && add_ldexeflags -Wl,--pic-executable,-e,mainCRTStartup
check_ldflags -Wl,--high-entropy-va # binutils 2.25
# Set image base >4GB for extra entropy with HEASLR
add_ldexeflags -Wl,--image-base,0x140000000
append SHFLAGS -Wl,--image-base,0x180000000
fi
;;
win32|win64)
disable symver
if enabled shared; then
# Link to the import library instead of the normal static library
# for shared libs.
LD_LIB='%.lib'
# Cannot build both shared and static libs with MSVC or icl.
disable static
fi
enabled x86_32 && check_ldflags -LARGEADDRESSAWARE
shlibdir_default="$bindir_default"
SLIBPREF=""
SLIBSUF=".dll"
SLIBNAME_WITH_VERSION='$(SLIBPREF)$(FULLNAME)-$(LIBVERSION)$(SLIBSUF)'
SLIBNAME_WITH_MAJOR='$(SLIBPREF)$(FULLNAME)-$(LIBMAJOR)$(SLIBSUF)'
SLIB_CREATE_DEF_CMD='EXTERN_PREFIX="$(EXTERN_PREFIX)" $(SRC_PATH)/compat/windows/makedef $(SUBDIR)lib$(NAME).ver $(OBJS) > $$(@:$(SLIBSUF)=.def)'
SLIB_INSTALL_NAME='$(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 && test_cmd $windres --version && enable gnu_windres
add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
;;
*-dos|freedos|opendos)
network_extralibs="-lsocket"
objformat="coff"
enable dos_paths
add_cppflags -U__STRICT_ANSI__
;;
linux)
enable section_data_rel_ro
enabled_any arm aarch64 && enable_weak linux_perf
;;
irix*)
target_os=irix
ranlib="echo ignoring ranlib"
;;
os/2*)
strip="lxlite -CS"
striptype=""
objformat="aout"
add_cppflags -D_GNU_SOURCE
add_ldflags -Zomf -Zbin-files -Zargs-wild -Zhigh-mem -Zmap
SHFLAGS='$(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=$sysinclude/gcce/gcce.h -fvisibility=default
add_cppflags -D__GCCE__ -D__SYMBIAN32__ -DSYMBIAN_OE_POSIX_SIGNALS
add_ldflags -Wl,--target1-abs,--no-undefined \
-Wl,-Ttext,0x80000,-Tdata,0x1000000 -shared \
-Wl,--entry=_E32Startup -Wl,-u,_E32Startup
add_extralibs -l:eexe.lib -l:usrt2_2.lib -l:dfpaeabi.dso \
-l:drtaeabi.dso -l:scppnwdl.dso -lsupc++ -lgcc \
-l:libc.dso -l:libm.dso -l:euser.dso -l:libcrt0.lib
;;
minix)
;;
none)
;;
*)
die "Unknown OS '$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 test_${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 test_${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 test_${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 test_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
eval ${pfx}libc_type=mingw64
if test_${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_${pfx}cppflags -D__printf__=__gnu_printf__
test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
add_${pfx}cppflags -D_WIN32_WINNT=0x0600
elif test_${pfx}cpp_condition _mingw.h "defined __MINGW_VERSION" ||
test_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
eval ${pfx}libc_type=mingw32
test_${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_${pfx}cppflags -U__STRICT_ANSI__ -D__USE_MINGW_ANSI_STDIO=1
test_${pfx}cpp_condition _mingw.h "__MSVCRT_VERSION__ < 0x0700" &&
add_${pfx}cppflags -D__MSVCRT_VERSION__=0x0700
test_${pfx}cpp_condition windows.h "!defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600" &&
add_${pfx}cppflags -D_WIN32_WINNT=0x0600
eval test \$${pfx_no_}cc_type = "gcc" &&
add_${pfx}cppflags -D__printf__=__gnu_printf__
elif test_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
eval ${pfx}libc_type=msvcrt
if test_${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 Vista 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.)
test_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
{ test_${pfx}cpp <<EOF && add_${pfx}cppflags -D_WIN32_WINNT=0x0600; }
#ifdef WINAPI_FAMILY
#include <winapifamily.h>
#if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
#error not desktop
#endif
#endif
EOF
if [ "$pfx" = "" ]; then
check_func strtoll || add_cflags -Dstrtoll=_strtoi64
check_func strtoull || add_cflags -Dstrtoull=_strtoui64
fi
elif test_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
eval ${pfx}libc_type=klibc
elif test_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
eval ${pfx}libc_type=bionic
elif test_${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
test_${pfx}cc <<EOF
#include <time.h>
void *v = localtime_r;
EOF
test "$?" != 0 && test_${pfx}cc -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600 <<EOF && add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
#include <time.h>
void *v = localtime_r;
EOF
eval test -n "\${${pfx}libc_type}" && enable ${pfx}libc_${libc_type}
}
probe_libc
probe_libc host_
# hacks for compiler/libc/os combinations
case $libc_type in
bionic)
add_compat strtod.o strtod=avpriv_strtod
;;
esac
check_compile_assert flt_lim "float.h limits.h" "DBL_MAX == (double)DBL_MAX" ||
add_cppflags '-I\$(SRC_PATH)/compat/float'
test_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 $PATHS_LIST
set_default nm
disabled optimizations || enabled ossfuzz || check_cflags -fomit-frame-pointer
enable_weak_pic() {
disabled pic && return
enable pic
add_cppflags -DPIC
case "$target_os" in
mingw*|cygwin*|win*)
;;
*)
add_cflags -fPIC
add_asflags -fPIC
;;
esac
}
enabled pic && enable_weak_pic
test_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*}
! disabled inline_asm && check_inline_asm inline_asm '"" ::'
for restrict_keyword in restrict __restrict__ __restrict ""; do
test_code cc "" "char * $restrict_keyword p" && break
done
check_cc pragma_deprecated "" '_Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")'
# The global variable ensures the bits appear unchanged in the object file.
test_cc <<EOF || die "endian test failed"
unsigned int endian = 'B' << 24 | 'I' << 16 | 'G' << 8 | 'E';
EOF
od -t x1 $TMPO | grep -q '42 *49 *47 *45' && enable bigendian
check_cc const_nan math.h "struct { double d; } static const bar[] = { { NAN } }"
if ! enabled ppc64 || enabled bigendian; then
disable vsx
fi
check_gas() {
log "check_gas using '$as' as AS"
# :vararg is used on aarch64, arm and ppc altivec
check_as vararg "
.macro m n, y:vararg=0
\n: .int \y
.endm
m x" || return 1
# .altmacro is only used in arm asm
! enabled arm || check_as gnu_as ".altmacro"
}
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" ||
test_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 as_func ".func test
.endfunc"
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 thumb stddef.h "defined _M_ARMT"
test_cpp_condition stddef.h "defined __thumb__" && test_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 vfp_args stddef.h "defined __ARM_PCS_VFP"; then
:
elif check_cpp_condition vfp_args stddef.h "defined _M_ARM_FP && _M_ARM_FP >= 30"; then
:
elif ! test_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" vfp_args <<EOF && 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' \
$ARCH_EXT_LIST_ARM
check_inline_asm asm_mod_q '"add r0, %Q0, %R0" :: "r"((long long)0)'
check_as as_arch_directive ".arch armv7-a"
check_as as_dn_directive "ra .dn d0.i16"
check_as as_fpu_directive ".fpu neon"
# llvm's integrated assembler supports .object_arch from llvm 3.5
[ "$objformat" = elf32 ] || [ "$objformat" = elf64 ] &&
check_as as_object_arch ".object_arch armv4"
# MS armasm fails to assemble our PIC constructs
[ $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
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)'
if enabled altivec; then
check_cflags -maltivec -mabi=altivec
# check if our compiler supports Motorola AltiVec C API
check_cc altivec altivec.h "vector signed int v1 = (vector signed int) { 0 };
vector signed int v2 = (vector signed int) { 1 };
v1 = vec_add(v1, v2);"
enabled altivec || warn "Altivec disabled, possibly missing --cpu flag"
fi
if enabled vsx; then
check_cflags -mvsx &&
check_cc vsx altivec.h "int v[4] = { 0 };
vector signed int v1 = vec_vsx_ld(0, v);"
fi
if enabled power8; then
check_cpp_condition power8 "altivec.h" "defined(_ARCH_PWR8)"
fi
elif enabled x86; then
check_builtin rdtsc intrin.h "__rdtsc()"
check_builtin mm_empty mmintrin.h "_mm_empty()"
enable local_aligned
# 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 test_cmd $x86asmexe_probe -v; then
x86asmexe=$x86asmexe_probe
x86asm_type=nasm
x86asm_debug="-g -F dwarf"
X86ASMDEP=
X86ASM_DEPFLAGS='-MD $(@:.o=.d)'
elif test_cmd $x86asmexe_probe --version; then
x86asmexe=$x86asmexe_probe
x86asm_type=yasm
x86asm_debug="-g dwarf2"
X86ASMDEP='$(DEPX86ASM) $(X86ASMFLAGS) -M $(X86ASM_O) $< > $(@:.o=.d)'
X86ASM_DEPFLAGS=
fi
check_x86asm x86asm "movbe ecx, [5]"
}
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."
X86ASMFLAGS="-f $objformat"
enabled pic && append X86ASMFLAGS "-DPIC"
test -n "$extern_prefix" && append X86ASMFLAGS "-DPREFIX"
case "$objformat" in
elf*) enabled debug && append X86ASMFLAGS $x86asm_debug ;;
esac
check_x86asm avx512_external "vmovdqa32 [eax]{k1}{z}, zmm0"
check_x86asm avx2_external "vextracti128 xmm0, ymm0, 0"
check_x86asm xop_external "vpmacsdd xmm0, xmm1, xmm2, xmm3"
check_x86asm fma4_external "vfmaddps ymm0, ymm1, ymm2, ymm3"
check_x86asm cpunop "CPU amdnop"
fi
case "$cpu" in
athlon*|opteron*|k8*|pentium|pentium-mmx|prescott|nocona|atom|geode)
disable fast_clz
;;
esac
fi
check_cc intrinsics_neon arm_neon.h "int16x8_t test = vdupq_n_s16(0)"
check_ldflags -Wl,--as-needed
check_ldflags -Wl,-z,noexecstack
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 $network_extralibs
check_type ws2tcpip.h socklen_t
check_type ws2tcpip.h "struct addrinfo"
check_type ws2tcpip.h "struct group_source_req"
check_type ws2tcpip.h "struct ip_mreq_source"
check_type ws2tcpip.h "struct ipv6_mreq"
check_type winsock2.h "struct pollfd"
check_struct winsock2.h "struct sockaddr" sa_len
check_type ws2tcpip.h "struct sockaddr_in6"
check_type ws2tcpip.h "struct sockaddr_storage"
else
disable network
fi
fi
check_builtin atomic_cas_ptr atomic.h "void **ptr; void *oldval, *newval; atomic_cas_ptr(ptr, oldval, newval)"
check_builtin machine_rw_barrier mbarrier.h "__machine_rw_barrier()"
check_builtin MemoryBarrier windows.h "MemoryBarrier()"
check_builtin sync_val_compare_and_swap "" "int *ptr; int oldval, newval; __sync_val_compare_and_swap(ptr, oldval, newval)"
check_builtin gmtime_r time.h "time_t *time; struct tm *tm; gmtime_r(time, tm)"
check_builtin localtime_r time.h "time_t *time; struct tm *tm; localtime_r(time, tm)"
check_builtin x264_csp_bgr "stdint.h x264.h" "X264_CSP_BGR"
case "$custom_allocator" in
jemalloc)
# jemalloc by default does not use a prefix
require libjemalloc jemalloc/jemalloc.h malloc -ljemalloc
;;
tcmalloc)
require_pkg_config libtcmalloc 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_lib clock_gettime time.h clock_gettime || check_lib clock_gettime time.h clock_gettime -lrt
check_func fcntl
check_func fork
check_func gethrtime
check_func getopt
check_func getrusage
check_func gettimeofday
check_func isatty
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
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 mach/mach_time.h mach_absolute_time
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_func_headers glob.h glob
enabled xlib &&
check_func_headers "X11/Xlib.h X11/extensions/Xvlib.h" XvGetPortAttribute -lXv -lX11 -lXext
check_header direct.h
check_header dirent.h
check_header dxgidebug.h
check_header dxva.h
check_header dxva2api.h -D_WIN32_WINNT=0x0600
check_header io.h
check_header linux/perf_event.h
check_header libcrystalhd/libcrystalhd_if.h
check_header malloc.h
check_header net/udplite.h
check_header poll.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_func_headers VideoToolbox/VTCompressionSession.h VTCompressionSessionPrepareToEncodeFrames -framework VideoToolbox
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 stdatomic.h "atomic_int foo, bar = ATOMIC_VAR_INIT(-1); atomic_store(&foo, 0); foo += bar"
check_lib advapi32 "windows.h" RegCloseKey -ladvapi32
check_lib bcrypt "windows.h bcrypt.h" BCryptGenRandom -lbcrypt &&
check_cpp_condition bcrypt bcrypt.h "defined BCRYPT_RNG_ALGORITHM"
check_lib ole32 "windows.h" CoTaskMemFree -lole32
check_lib shell32 "windows.h shellapi.h" CommandLineToArgvW -lshell32
check_lib psapi "windows.h psapi.h" GetProcessMemoryInfo -lpsapi
check_lib android android/native_window.h ANativeWindow_acquire -landroid
check_lib mediandk "stdint.h media/NdkImage.h" AImage_delete -lmediandk
check_lib camera2ndk "stdbool.h stdint.h camera/NdkCameraManager.h" ACameraManager_create -lcamera2ndk
enabled appkit && check_apple_framework AppKit
enabled audiotoolbox && check_apple_framework AudioToolbox
enabled avfoundation && check_apple_framework AVFoundation
enabled coreimage && check_apple_framework CoreImage
enabled videotoolbox && check_apple_framework VideoToolbox
check_apple_framework CoreFoundation
check_apple_framework CoreMedia
check_apple_framework CoreVideo
enabled avfoundation && {
disable coregraphics applicationservices
check_lib coregraphics CoreGraphics/CoreGraphics.h CGGetActiveDisplayList "-framework CoreGraphics" ||
check_lib applicationservices ApplicationServices/ApplicationServices.h CGGetActiveDisplayList "-framework ApplicationServices"; }
enabled videotoolbox && {
check_lib coreservices CoreServices/CoreServices.h UTGetOSTypeFromString "-framework CoreServices"
check_func_headers CoreMedia/CMFormatDescription.h kCMVideoCodecType_HEVC "-framework CoreMedia"
}
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_type "va/va.h va/va_dec_vp8.h" "VAPictureParameterBufferVP8"
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"
if ! disabled ffnvcodec; then
check_pkg_config ffnvcodec "ffnvcodec >= 8.0.14.1" \
"ffnvcodec/nvEncodeAPI.h ffnvcodec/dynlink_cuda.h ffnvcodec/dynlink_cuviddec.h ffnvcodec/dynlink_nvcuvid.h" ""
fi
check_cpp_condition winrt windows.h "!WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)"
if ! disabled w32threads && ! enabled pthreads; then
check_func_headers "windows.h process.h" _beginthreadex &&
check_type "windows.h" CONDITION_VARIABLE &&
check_type "windows.h" INIT_ONCE &&
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_cc pthreads "pthread.h" "static pthread_mutex_t atomic_lock = PTHREAD_MUTEX_INITIALIZER"
if enabled pthreads; then
check_builtin sem_timedwait semaphore.h "sem_t *s; sem_init(s,0,0); sem_timedwait(s,0); sem_destroy(s)" $pthreads_extralibs
check_func pthread_cancel $pthreads_extralibs
fi
fi
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
# On some systems dynamic loading requires no extra linker flags
check_lib libdl dlfcn.h "dlopen dlsym" || check_lib libdl dlfcn.h "dlopen dlsym" -ldl
check_lib libm math.h sin -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_extralibs
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 cuda_sdk && require cuda_sdk cuda.h cuCtxCreate -lcuda
enabled chromaprint && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
enabled decklink && { require_header DeckLinkAPI.h &&
{ test_cpp_condition DeckLinkAPIVersion.h "BLACKMAGIC_DECKLINK_API_VERSION >= 0x0a060100" || die "ERROR: Decklink API version must be >= 10.6.1."; } }
enabled libndi_newtek && require_header Processing.NDI.Lib.h
enabled frei0r && require_header frei0r.h
enabled gmp && require gmp gmp.h mpz_export -lgmp
enabled gnutls && require_pkg_config gnutls 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 && require_header ladspa.h
enabled libaom && require_pkg_config libaom "aom >= 0.1.0" aom/aom_codec.h aom_codec_version
enabled lv2 && require_pkg_config lv2 lilv-0 "lilv/lilv.h" lilv_world_new
enabled libiec61883 && require libiec61883 libiec61883/iec61883.h iec61883_cmp_connect -lraw1394 -lavc1394 -lrom1394 -liec61883
enabled libass && require_pkg_config libass libass ass/ass.h ass_library_init
enabled libbluray && require_pkg_config libbluray libbluray libbluray/bluray.h bd_open
enabled libbs2b && require_pkg_config libbs2b 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 libcaca caca caca.h caca_create_canvas
enabled libcodec2 && require libcodec2 codec2/codec2.h codec2_create -lcodec2
enabled libdc1394 && require_pkg_config libdc1394 libdc1394-2 dc1394/dc1394.h dc1394_new
enabled libdrm && require_pkg_config libdrm libdrm xf86drm.h drmGetVersion
enabled libfdk_aac && { check_pkg_config libfdk_aac 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 $flite_extralibs
enabled fontconfig && enable libfontconfig
enabled libfontconfig && require_pkg_config libfontconfig fontconfig "fontconfig/fontconfig.h" FcInit
enabled libfreetype && require_pkg_config libfreetype freetype2 "ft2build.h FT_FREETYPE_H" FT_Init_FreeType
enabled libfribidi && require_pkg_config libfribidi fribidi fribidi.h fribidi_version_info
enabled libgme && { check_pkg_config libgme libgme gme/gme.h gme_new_emu ||
require libgme gme/gme.h gme_new_emu -lgme -lstdc++; }
enabled libgsm && { for gsm_hdr in "gsm.h" "gsm/gsm.h"; do
check_lib libgsm "${gsm_hdr}" gsm_create -lgsm && break;
done || die "ERROR: libgsm not found"; }
enabled libilbc && require libilbc ilbc.h WebRtcIlbcfix_InitDecode -lilbc $pthreads_extralibs
enabled libkvazaar && require_pkg_config libkvazaar "kvazaar >= 0.8.1" kvazaar.h kvz_api_get
# 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 && { check_pkg_config libmfx libmfx "mfx/mfxvideo.h" MFXInit ||
{ require libmfx "mfx/mfxvideo.h" MFXInit "-llibmfx $advapi32_extralibs" && warn "using libmfx without pkg-config"; } }
enabled libmodplug && require_pkg_config libmodplug libmodplug libmodplug/modplug.h ModPlug_Load
enabled libmp3lame && require "libmp3lame >= 3.98.3" lame/lame.h lame_set_VBR_quality -lmp3lame $libm_extralibs
enabled libmysofa && require libmysofa "mysofa.h" mysofa_load -lmysofa $zlib_extralibs
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 &&
{ check_pkg_config libopencv opencv opencv2/core/core_c.h cvCreateImageHeader ||
require libopencv opencv2/core/core_c.h cvCreateImageHeader -lopencv_core -lopencv_imgproc; } ||
require_pkg_config libopencv opencv opencv/cxcore.h cvCreateImageHeader; }
enabled libopenh264 && require_pkg_config libopenh264 openh264 wels/codec_api.h WelsGetCodecVersion
enabled libopenjpeg && { check_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version ||
{ require_pkg_config libopenjpeg "libopenjp2 >= 2.1.0" openjpeg.h opj_version -DOPJ_STATIC && add_cppflags -DOPJ_STATIC; } }
enabled libopenmpt && require_pkg_config libopenmpt "libopenmpt >= 0.2.6557" libopenmpt/libopenmpt.h openmpt_module_create -lstdc++ && append libopenmpt_extralibs "-lstdc++"
enabled libopus && {
enabled libopus_decoder && {
require_pkg_config libopus opus opus_multistream.h opus_multistream_decoder_create
}
enabled libopus_encoder && {
require_pkg_config libopus opus opus_multistream.h opus_multistream_surround_encoder_create
}
}
enabled libpulse && require_pkg_config libpulse libpulse pulse/pulseaudio.h pa_context_new
enabled librsvg && require_pkg_config librsvg librsvg-2.0 librsvg-2.0/librsvg/rsvg.h rsvg_handle_render_cairo
enabled librtmp && require_pkg_config librtmp librtmp librtmp/rtmp.h RTMP_Socket
enabled librubberband && require_pkg_config librubberband "rubberband >= 1.8.1" rubberband/rubberband-c.h rubberband_new -lstdc++ && append librubberband_extralibs "-lstdc++"
enabled libshine && require_pkg_config libshine shine shine/layer3.h shine_encode_buffer
enabled libsmbclient && { check_pkg_config libsmbclient smbclient libsmbclient.h smbc_init ||
require libsmbclient libsmbclient.h smbc_init -lsmbclient; }
enabled libsnappy && require libsnappy snappy-c.h snappy_compress -lsnappy -lstdc++
enabled libsoxr && require libsoxr soxr.h soxr_create -lsoxr
enabled libssh && require_pkg_config libssh libssh libssh/sftp.h sftp_init
enabled libspeex && require_pkg_config libspeex speex speex/speex.h speex_decoder_init
enabled libsrt && require_pkg_config libsrt "srt >= 1.2.0" srt/srt.h srt_socket
enabled libtesseract && require_pkg_config libtesseract tesseract tesseract/capi.h TessBaseAPICreate
enabled libtheora && require libtheora theora/theoraenc.h th_info_init -ltheoraenc -ltheoradec -logg
enabled libtls && require_pkg_config libtls libtls tls.h tls_configure
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 libv4l2.h v4l2_ioctl
enabled libvidstab && require_pkg_config libvidstab "vidstab >= 0.98" vid.stab/libvidstab.h vsMotionDetectInit
enabled libvmaf && require_pkg_config libvmaf "libvmaf >= 0.6.2" 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 libvorbis vorbis vorbis/codec.h vorbis_info_init &&
require_pkg_config libvorbisenc vorbisenc vorbis/vorbisenc.h vorbis_encode_init
enabled libvpx && {
enabled libvpx_vp8_decoder && {
check_pkg_config libvpx_vp8_decoder "vpx >= 1.4.0" "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_vp8_dx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs" ||
die "ERROR: libvpx decoder version must be >=1.4.0";
}
enabled libvpx_vp8_encoder && {
check_pkg_config libvpx_vp8_encoder "vpx >= 1.4.0" "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_vp8_cx VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs" ||
die "ERROR: libvpx encoder version must be >=1.4.0";
}
enabled libvpx_vp9_decoder && {
check_pkg_config libvpx_vp9_decoder "vpx >= 1.4.0" "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 VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
}
enabled libvpx_vp9_encoder && {
check_pkg_config libvpx_vp9_encoder "vpx >= 1.4.0" "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 VPX_IMG_FMT_HIGHBITDEPTH" "-lvpx $libm_extralibs $pthreads_extralibs"
}
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 "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
enabled libx264 && { check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode ||
{ require libx264 "stdint.h x264.h" x264_encoder_encode "-lx264 $pthreads_extralibs $libm_extralibs" &&
warn "using libx264 without pkg-config"; } } &&
require_cpp_condition x264.h "X264_BUILD >= 118" &&
check_cpp_condition libx262 x264.h "X264_MPEG2"
enabled libx265 && require_pkg_config libx265 x265 x265.h x265_api_get &&
require_cpp_condition x265.h "X265_BUILD >= 68"
enabled libxavs && require libxavs "stdint.h xavs.h" xavs_encoder_encode "-lxavs $pthreads_extralibs $libm_extralibs"
enabled libxvid && require libxvid xvid.h xvid_global -lxvidcore
enabled libzimg && require_pkg_config libzimg "zimg >= 2.7.0" zimg.h zimg_get_api_version
enabled libzmq && require_pkg_config libzmq libzmq zmq.h zmq_ctx_new
enabled libzvbi && require_pkg_config libzvbi zvbi-0.2 libzvbi.h vbi_decoder_new &&
{ test_cpp_condition libzvbi.h "VBI_VERSION_MAJOR > 0 || VBI_VERSION_MINOR > 2 || VBI_VERSION_MINOR == 2 && VBI_VERSION_MICRO >= 28" ||
enabled gpl || die "ERROR: libzvbi requires version 0.2.28 or --enable-gpl."; }
enabled libxml2 && require_pkg_config libxml2 libxml-2.0 libxml2/libxml/xmlversion.h xmlCheckVersion
enabled mediacodec && { enabled jni || die "ERROR: mediacodec requires --enable-jni"; }
enabled mmal && { check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host ||
{ ! enabled cross_compile &&
add_cflags -isystem/opt/vc/include/ -isystem/opt/vc/include/interface/vmcs_host/linux -isystem/opt/vc/include/interface/vcos/pthreads -fgnu89-inline &&
add_ldflags -L/opt/vc/lib/ &&
check_lib mmal interface/mmal/mmal.h mmal_port_connect -lmmal_core -lmmal_util -lmmal_vc_client -lbcm_host; } ||
die "ERROR: mmal not found" &&
check_func_headers interface/mmal/mmal.h "MMAL_PARAMETER_VIDEO_MAX_NUM_CALLBACKS"; }
enabled openal && { { for al_extralibs in "${OPENAL_LIBS}" "-lopenal" "-lOpenAL32"; do
check_lib openal 'AL/al.h' alGetError "${al_extralibs}" && break; done } ||
die "ERROR: openal not found"; } &&
{ test_cpp_condition "AL/al.h" "defined(AL_VERSION_1_1)" ||
die "ERROR: openal must be installed and version must be 1.1 or compatible"; }
enabled opencl && { check_lib opencl OpenCL/cl.h clEnqueueNDRangeKernel -Wl,-framework,OpenCL ||
check_lib opencl CL/cl.h clEnqueueNDRangeKernel -lOpenCL ||
die "ERROR: opencl not found"; } &&
{ test_cpp_condition "OpenCL/cl.h" "defined(CL_VERSION_1_2)" ||
test_cpp_condition "CL/cl.h" "defined(CL_VERSION_1_2)" ||
die "ERROR: opencl must be installed and version must be 1.2 or compatible"; }
enabled opengl && { check_lib opengl GL/glx.h glXGetProcAddress "-lGL" ||
check_lib opengl windows.h wglGetProcAddress "-lopengl32 -lgdi32" ||
check_lib opengl OpenGL/gl3.h glGetError "-Wl,-framework,OpenGL" ||
check_lib opengl ES2/gl.h glGetError "-isysroot=${sysroot} -Wl,-framework,OpenGLES" ||
die "ERROR: opengl not found."
}
enabled omx && require_header OMX_Core.h
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"; } && enable omx
enabled openssl && { check_pkg_config openssl openssl openssl/ssl.h OPENSSL_init_ssl ||
check_pkg_config openssl 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 rkmpp && { require_pkg_config rkmpp rockchip_mpp rockchip/rk_mpi.h mpp_create &&
require_pkg_config rockchip_mpp "rockchip_mpp >= 1.3.7" rockchip/rk_mpi.h mpp_create &&
{ enabled libdrm ||
die "ERROR: rkmpp requires --enable-libdrm"; }
}
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 $gcrypt_cflags
else
require gcrypt gcrypt.h gcry_mpi_new -lgcrypt
fi
fi
if enabled sdl2; then
SDL2_CONFIG="${cross_prefix}sdl2-config"
test_pkg_config sdl2 "sdl2 >= 2.0.1 sdl2 < 2.1.0" SDL_events.h SDL_PollEvent
if disabled sdl2 && "${SDL2_CONFIG}" --version > /dev/null 2>&1; then
sdl2_cflags=$("${SDL2_CONFIG}" --cflags)
sdl2_extralibs=$("${SDL2_CONFIG}" --libs)
test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) >= 0x020001" $sdl2_cflags &&
test_cpp_condition SDL.h "(SDL_MAJOR_VERSION<<16 | SDL_MINOR_VERSION<<8 | SDL_PATCHLEVEL) < 0x020100" $sdl2_cflags &&
check_func_headers SDL_events.h SDL_PollEvent $sdl2_extralibs $sdl2_cflags &&
enable sdl2
fi
if test $target_os = "mingw32"; then
sdl2_extralibs=$(filter_out '-mwindows' $sdl2_extralibs)
fi
fi
if enabled decklink; then
case $target_os in
mingw32*|mingw64*|win32|win64)
decklink_outdev_extralibs="$decklink_outdev_extralibs -lole32 -loleaut32"
decklink_indev_extralibs="$decklink_indev_extralibs -lole32 -loleaut32"
;;
esac
fi
enabled securetransport &&
check_func SecIdentityCreate "-Wl,-framework,CoreFoundation -Wl,-framework,Security" &&
check_lib securetransport "Security/SecureTransport.h Security/Security.h" "SSLCreateContext" "-Wl,-framework,CoreFoundation -Wl,-framework,Security" ||
disable securetransport
enabled securetransport &&
check_func SecItemImport "-Wl,-framework,CoreFoundation -Wl,-framework,Security"
enabled schannel &&
check_func_headers "windows.h security.h" InitializeSecurityContext -DSECURITY_WIN32 -lsecur32 &&
test_cpp_condition winerror.h "defined(SEC_I_CONTEXT_EXPIRED)" &&
schannel_extralibs="-lsecur32" ||
disable schannel
makeinfo --version > /dev/null 2>&1 && enable makeinfo || disable makeinfo
enabled makeinfo \
&& [ 0$(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 V4L2 codecs available in the API
check_header linux/fb.h
check_header linux/videodev2.h
test_code cc linux/videodev2.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized struct_v4l2_frmivalenum_discrete
check_cc v4l2_m2m linux/videodev2.h "int i = V4L2_CAP_VIDEO_M2M_MPLANE | V4L2_CAP_VIDEO_M2M | V4L2_BUF_FLAG_LAST;"
check_cc vc1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VC1_ANNEX_G;"
check_cc mpeg1_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG1;"
check_cc mpeg2_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG2;"
check_cc mpeg4_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_MPEG4;"
check_cc hevc_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_HEVC;"
check_cc h263_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H263;"
check_cc h264_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_H264;"
check_cc vp8_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP8;"
check_cc vp9_v4l2_m2m linux/videodev2.h "int i = V4L2_PIX_FMT_VP9;"
check_header sys/videoio.h
test_code cc sys/videoio.h "struct v4l2_frmsizeenum vfse; vfse.discrete.width = 0;" && enable_sanitized 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 vfwcap_defines vfw.h "WM_CAP_DRIVER_CONNECT > WM_USER"
check_type "dshow.h" IBaseFilter
# check for ioctl_meteor.h, ioctl_bt848.h and alternatives
check_header "dev/bktr/ioctl_meteor.h dev/bktr/ioctl_bt848.h" ||
check_header "machine/ioctl_meteor.h machine/ioctl_bt848.h" ||
check_header "dev/video/meteor/ioctl_meteor.h dev/video/bktr/ioctl_bt848.h" ||
check_header "dev/ic/bt8xx.h"
if check_struct sys/soundcard.h audio_buf_info bytes; then
enable_sanitized sys/soundcard.h
else
test_cc -D__BSD_VISIBLE -D__XSI_VISIBLE <<EOF && add_cppflags -D__BSD_VISIBLE -D__XSI_VISIBLE && enable_sanitized sys/soundcard.h
#include <sys/soundcard.h>
audio_buf_info abc;
EOF
fi
enabled alsa && check_pkg_config alsa alsa "alsa/asoundlib.h" snd_pcm_htimestamp ||
check_lib alsa alsa/asoundlib.h snd_pcm_htimestamp -lasound
enabled libjack &&
require_pkg_config libjack jack jack/jack.h jack_port_get_latency_range
enabled sndio && check_lib sndio sndio.h sio_open -lsndio
if enabled libcdio; then
check_pkg_config libcdio libcdio_paranoia "cdio/cdda.h cdio/paranoia.h" cdio_cddap_open ||
check_pkg_config libcdio libcdio_paranoia "cdio/paranoia/cdda.h cdio/paranoia/paranoia.h" cdio_cddap_open ||
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 libxcb "xcb >= 1.4" xcb/xcb.h xcb_connect ||
disable libxcb_shm libxcb_shape libxcb_xfixes
if enabled libxcb; then
enabled libxcb_shm && check_pkg_config libxcb_shm xcb-shm xcb/shm.h xcb_shm_attach
enabled libxcb_shape && check_pkg_config libxcb_shape xcb-shape xcb/shape.h xcb_shape_get_rectangles
enabled libxcb_xfixes && check_pkg_config libxcb_xfixes xcb-xfixes xcb/xfixes.h xcb_xfixes_get_cursor_image
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
test_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_cc vaapi "va/va.h" "vaCreateSurfaces(0, 0, 0, 0, 0, 0, 0, 0)"
if enabled vaapi; then
check_lib vaapi_drm "va/va.h va/va_drm.h" vaGetDisplayDRM -lva -lva-drm
check_lib vaapi_x11 "va/va.h va/va_x11.h" vaGetDisplay -lva -lva-x11 -lX11
fi
enabled vaapi &&
check_cpp_condition vaapi_1 "va/va.h" "VA_CHECK_VERSION(1, 0, 0)"
if enabled_all opencl libdrm ; then
check_type "CL/cl_intel.h" "clCreateImageFromFdINTEL_fn" &&
enable opencl_drm_beignet
check_func_headers "CL/cl_ext.h" clImportMemoryARM &&
enable opencl_drm_arm
fi
if enabled_all opencl vaapi ; then
enabled opencl_drm_beignet && enable opencl_vaapi_beignet
if enabled libmfx ; then
check_type "CL/cl.h CL/va_ext.h" "clCreateFromVA_APIMediaSurfaceINTEL_fn" &&
enable opencl_vaapi_intel_media
fi
fi
if enabled_all opencl dxva2 ; then
check_type "CL/cl_dx9_media_sharing.h" cl_dx9_surface_info_khr &&
enable opencl_dxva2
fi
if enabled_all opencl d3d11va ; then
check_type "CL/cl_d3d11.h" clGetDeviceIDsFromD3D11KHR_fn &&
enable opencl_d3d11
fi
enabled vdpau &&
check_cpp_condition vdpau vdpau/vdpau.h "defined VDP_DECODER_PROFILE_MPEG4_PART2_ASP"
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 $target_os in
mingw32*|mingw64*|win32|win64|linux|cygwin*)
;;
*)
disable ffnvcodec cuvid nvdec nvenc
;;
esac
else
disable ffnvcodec cuvid nvdec nvenc
fi
enabled ffnvcodec && enable cuda
enabled nvenc &&
test_cc -I$source_path <<EOF || disable nvenc
#include <ffnvcodec/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
enabled amf &&
check_cpp_condition amf "AMF/core/Version.h" \
"(AMF_VERSION_MAJOR << 48 | AMF_VERSION_MINOR << 32 | AMF_VERSION_RELEASE << 16 | AMF_VERSION_BUILD_NUM) >= 0x0001000400040001"
# Funny iconv installations are not unusual, so check it after all flags have been set
if enabled libc_iconv; then
check_func_headers iconv.h iconv
elif enabled iconv; then
check_func_headers iconv.h iconv || check_lib iconv iconv.h iconv -liconv
fi
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 $unknown_warning_flags $warning_flag && add_cflags $1
}
test_cflags -Werror=unused-command-line-argument &&
append unknown_warning_flags "-Werror=unused-command-line-argument"
test_cflags -Werror=unknown-warning-option &&
append unknown_warning_flags "-Werror=unknown-warning-option"
check_disable_warning -Wno-parentheses
check_disable_warning -Wno-switch
check_disable_warning -Wno-format-zero-length
check_disable_warning -Wno-pointer-sign
check_disable_warning -Wno-unused-const-variable
check_disable_warning -Wno-bool-operation
check_disable_warning_headers(){
warning_flag=-W${1#-Wno-}
test_cflags $warning_flag && add_cflags_headers $1
}
check_disable_warning_headers -Wno-deprecated-declarations
check_disable_warning_headers -Wno-unused-variable
test_cc <<EOF && enable blocks_extension
void (^block)(void);
EOF
# add some linker flags
check_ldflags -Wl,--warn-common
check_ldflags -Wl,-rpath-link=libpostproc:libswresample:libswscale:libavfilter:libavdevice:libavformat:libavcodec:libavutil:libavresample
enabled rpath && add_ldexeflags -Wl,-rpath,$libdir && add_ldsoflags -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" proper_dce <<EOF
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'
quotes='""'
test_cc <<EOF && enable symver_asm_label
void ff_foo(void) __asm__ ("av_foo@VERSION");
void ff_foo(void) { ${inline_asm+__asm__($quotes);} }
EOF
test_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 $cpuflags
disable inline_asm_direct_symbol_refs
fi
enabled ftrapv && check_cflags -ftrapv
test_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
int x;
EOF
if enabled icc; then
# Just warnings, no remarks
check_cflags -w1
# -wd: Disable following warnings
# 144, 167, 556: -Wno-pointer-sign
# 188: enumerated type mixed with another type
# 1292: attribute "foo" ignored
# 1419: external declaration in primary source file
# 10006: ignoring unknown option -fno-signed-zeros
# 10148: ignoring unknown option -Wno-parentheses
# 10156: ignoring option '-W'; no argument required
# 13200: No EMMS instruction before call to function
# 13203: No EMMS instruction before return from function
check_cflags -wd144,167,188,556,1292,1419,10006,10148,10156,13200,13203
# 11030: Warning unknown option --as-needed
# 10156: ignoring option '-export'; no argument required
check_ldflags -wd10156,11030
# icc 11.0 and 11.1 work with ebp_available, but don't pass the test
enable ebp_available
# The test above does not test linking
enabled lto && disable symver_asm_label
if enabled x86_32; then
icc_version=$($cc -dumpversion)
test ${icc_version%%.*} -ge 11 &&
check_cflags -falign-stack=maintain-16-byte ||
disable aligned_stack
fi
elif enabled 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
if enabled x86_32; then
case $target_os in
*bsd*)
# BSDs don't guarantee a 16 byte aligned stack, but we can
# request GCC to try to maintain 16 byte alignment throughout
# function calls. Library entry points that might call assembly
# functions align the stack. (The parameter means 2^4 bytes.)
check_cflags -mpreferred-stack-boundary=4
;;
esac
fi
elif enabled llvm_gcc; then
check_cflags -mllvm -stack-alignment=16
elif enabled clang; then
if enabled x86_32; then
# Clang doesn't support maintaining alignment without assuming the
# same alignment in every function. If 16 byte alignment would be
# enabled, one would also have to either add attribute_align_arg on
# every single entry point into the libraries or enable -mstackrealign
# (doing stack realignment in every single function).
case $target_os in
mingw32|win32|*bsd*)
disable aligned_stack
;;
*)
check_cflags -mllvm -stack-alignment=16
check_cflags -mstack-alignment=16
;;
esac
else
check_cflags -mllvm -stack-alignment=16
check_cflags -mstack-alignment=16
fi
check_cflags -Qunused-arguments
check_cflags -Werror=implicit-function-declaration
check_cflags -Werror=missing-prototypes
check_cflags -Werror=return-type
elif enabled cparser; then
add_cflags -Wno-missing-variable-declarations
add_cflags -Wno-empty-statement
elif enabled armcc; then
add_cflags -W${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 pathscale; then
add_cflags -fstrict-overflow -OPT:wrap_around_unsafe_opt=OFF
disable inline_asm
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.
test_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 log2 crtversion.h "_VC_CRT_MAJOR_VERSION >= 12"
# 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 [ $restrict_keyword != restrict ]; then
test_cc <<EOF || add_cflags -FIstdlib.h
__declspec($restrict_keyword) 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.
test_cpp_condition windows.h "_MSC_FULL_VER >= 190024218" ||
check_cflags -d2SSAOptimizer-
# enable utf-8 source processing on VS2015 U2 and newer
test_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 [ "$type" = "msvc" ]; then
test_${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
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"
enabled avresample && warn "Building with deprecated library libavresample"
if test $target_os = "haiku"; then
disable memalign
disable posix_memalign
fi
flatten_extralibs(){
nested_entries=
list_name=$1
eval list=\$${1}
for entry in $list; do
entry_copy=$entry
resolve entry_copy
flat_entries=
for e in $entry_copy; do
case $e in
*_extralibs) nested_entries="$nested_entries$e ";;
*) flat_entries="$flat_entries$e ";;
esac
done
eval $entry="\$flat_entries"
done
append $list_name "$nested_entries"
resolve nested_entries
if test -n "$(filter '*_extralibs' $nested_entries)"; then
flatten_extralibs $list_name
fi
}
flatten_extralibs_wrapper(){
list_name=$1
flatten_extralibs $list_name
unique $list_name
resolve $list_name
eval $list_name=\$\(\$ldflags_filter \$$list_name\)
eval printf \''%s'\' \""\$$list_name"\"
}
for linkunit in $LIBRARY_LIST; do
unset current_extralibs
eval components=\$$(toupper ${linkunit})_COMPONENTS_LIST
for comp in ${components}; do
enabled $comp || continue
comp_extralibs="${comp}_extralibs"
append current_extralibs $comp_extralibs
done
eval prepend ${linkunit}_extralibs $current_extralibs
done
for linkunit in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
eval ${linkunit}_extralibs=\$\(flatten_extralibs_wrapper ${linkunit}_extralibs\)
done
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; 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 any 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 convolve_filter && prepend avfilter_deps "avcodec"
enabled deconvolve_filter && prepend avfilter_deps "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"
#FIXME
enabled sdl2_outdev && add_cflags $(filter_out '-Dmain=SDL_main' $sdl2_cflags)
enabled opus_decoder && prepend avcodec_deps "swresample"
# reorder the items at var $1 to align with the items order at var $2 .
# die if an item at $1 is not at $2 .
reorder_by(){
eval rb_in=\$$1
eval rb_ordered=\$$2
for rb in $rb_in; do
is_in $rb $rb_ordered || die "$rb at \$$1 is not at \$$2"
done
rb_out=
for rb in $rb_ordered; do
is_in $rb $rb_in && rb_out="$rb_out$rb "
done
eval $1=\$rb_out
}
# deps-expand fflib $1: N x {append all expanded deps; unique}
# within a set of N items, N expansions are enough to expose a cycle.
expand_deps(){
unique ${1}_deps # required for the early break test.
for dummy in $LIBRARY_LIST; do # N iteratios
eval deps=\$${1}_deps
append ${1}_deps $(map 'eval echo \$${v}_deps' $deps)
unique ${1}_deps
eval '[ ${#deps} = ${#'${1}_deps'} ]' && break # doesn't expand anymore
done
eval is_in $1 \$${1}_deps && die "Dependency cycle at ${1}_deps"
reorder_by ${1}_deps LIBRARY_LIST # linking order is expected later
}
#we have to remove gpl from the deps here as some code assumes all lib deps are libs
postproc_deps="$(filter_out 'gpl' $postproc_deps)"
map 'expand_deps $v' $LIBRARY_LIST
if test "$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 "AVX-512 enabled ${avx512-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 $EXTERNAL_AUTODETECT_LIBRARY_LIST | print_in_columns
echo
echo "External libraries providing hardware acceleration:"
print_enabled '' $HWACCEL_LIBRARY_LIST $HWACCEL_AUTODETECT_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: $license"
fi # test "$quiet" != "yes"
if test -n "$WARNINGS"; then
printf "\n%s%s$WARNINGS%s" "$warn_color" "$bold_color" "$reset_color"
enabled fatal_warnings && exit 1
fi
test -e Makefile || echo "include $source_path/Makefile" > Makefile
esc(){
echo "$*" | sed 's/%/%25/g;s/:/%3a/g'
}
echo "config:$arch:$subarch:$cpu:$target_os:$(esc $cc_ident):$(esc $FFMPEG_CONFIGURATION)" > ffbuild/config.fate
enabled stripping || strip="echo skipping strip"
enabled stripping || striptype=""
config_files="$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
EXTERN_PREFIX=$extern_prefix
CC=$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=$ar_o
AR_CMD=$ar
NM_CMD=$nm
RANLIB=$ranlib
STRIP=$strip
STRIPTYPE=$striptype
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
LDSOFLAGS=$LDSOFLAGS
SHFLAGS=$(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=$CFLAGS_HEADERS
LIB_INSTALL_EXTRA_CMD=$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
for entry in $LIBRARY_LIST $PROGRAM_LIST $EXTRALIBS_LIST; do
eval echo "EXTRALIBS-${entry}=\$${entry}_extralibs" >> ffbuild/config.mak
done
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 $license)"
#define CONFIG_THIS_YEAR 2020
#define FFMPEG_DATADIR "$(eval c_escape $datadir)"
#define AVCONV_DATADIR "$(eval c_escape $datadir)"
#define CC_IDENT "$(c_escape ${cc_ident:-Unknown compiler})"
#define av_restrict $restrict_keyword
#define EXTERN_PREFIX "${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
cat > $TMPASM <<EOF
; Automatically generated by configure - do not modify!
EOF
fi
enabled getenv || echo "#define getenv(x) NULL" >> $TMPH
mkdir -p doc
mkdir -p tests
mkdir -p tests/api
echo "@c auto-generated by configure - do not modify! " > doc/config.texi
print_config ARCH_ "$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 ffmpeg configure */
#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 $TMPH libavutil/avconfig.h
# full_filter_name_foo=vf_foo
# full_filter_name_bar=asrc_bar
# ...
eval "$(sed -n "s/^extern AVFilter ff_\([avfsinkrc]\{2,5\}\)_\(.*\);/full_filter_name_\2=\1_\2/p" $source_path/libavfilter/allfilters.c)"
# generate the lists of enabled components
print_enabled_components(){
file=$1
struct_name=$2
name=$3
shift 3
echo "static const $struct_name * const $name[] = {" > $TMPH
for c in $*; do
if enabled $c; then
case $name in
filter_list)
eval c=\$full_filter_name_${c%_filter}
;;
indev_list)
c=${c%_indev}_demuxer
;;
outdev_list)
c=${c%_outdev}_muxer
;;
esac
printf " &ff_%s,\n" $c >> $TMPH
fi
done
if [ "$name" = "filter_list" ]; then
for c in asrc_abuffer vsrc_buffer asink_abuffer vsink_buffer; do
printf " &ff_%s,\n" $c >> $TMPH
done
fi
echo " NULL };" >> $TMPH
cp_if_changed $TMPH $file
}
print_enabled_components libavfilter/filter_list.c AVFilter filter_list $FILTER_LIST
print_enabled_components libavcodec/codec_list.c AVCodec codec_list $CODEC_LIST
print_enabled_components libavcodec/parser_list.c AVCodecParser parser_list $PARSER_LIST
print_enabled_components libavcodec/bsf_list.c AVBitStreamFilter bitstream_filters $BSF_LIST
print_enabled_components libavformat/demuxer_list.c AVInputFormat demuxer_list $DEMUXER_LIST
print_enabled_components libavformat/muxer_list.c AVOutputFormat muxer_list $MUXER_LIST
print_enabled_components libavdevice/indev_list.c AVInputFormat indev_list $INDEV_LIST
print_enabled_components libavdevice/outdev_list.c AVOutputFormat outdev_list $OUTDEV_LIST
print_enabled_components libavformat/protocol_list.c URLProtocol url_protocols $PROTOCOL_LIST
# Settings for pkg-config files
cat > $TMPH <<EOF
# Automatically generated by configure - do not modify!
shared=$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="$avutil_extralibs"
extralibs_avcodec="$avcodec_extralibs"
extralibs_avformat="$avformat_extralibs"
extralibs_avdevice="$avdevice_extralibs"
extralibs_avfilter="$avfilter_extralibs"
extralibs_avresample="$avresample_extralibs"
extralibs_postproc="$postproc_extralibs"
extralibs_swscale="$swscale_extralibs"
extralibs_swresample="$swresample_extralibs"
EOF
for lib in $LIBRARY_LIST; do
lib_deps="$(eval echo \$${lib}_deps)"
echo ${lib}_deps=\"$lib_deps\" >> $TMPH
done
cp_if_changed $TMPH ffbuild/config.sh