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Autres articles (23)
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HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...)
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Programming Language Levels
20 mai 2011, par Multimedia Mike — ProgrammingI’ve been doing this programming thing for some 20 years now. Things sure do change. One change I ponder from time to time is the matter of programming language levels. Allow me to explain.
The 1990s
When I first took computer classes in the early 1990s, my texts would classify computer languages into 3 categories, or levels. The lower the level, the closer to the hardware ; the higher the level, the more abstract (and presumably, easier to use). I recall that the levels went something like this :- High level : Pascal, BASIC, Logo, Fortran
- Medium level : C, Forth
- Low level : Assembly language
Keep in mind that these were the same texts which took the time to explain the history of computers from mainframes -> minicomputers -> a relatively recent phenomenon called microcomputers or "PCs".
Somewhere in the mid-late 1990s, when I was at university, I was introduced to a new tier :
- Very high level : Perl, shell scripting
I think there was some debate among my peers about whether C++ and Java were properly classified as high or very high level. The distinction between high and very high, in my observation, seemed to be that very high level languages had more complex data structures (at the very least, a hash / dictionary / associative array / key-value map) built into the language, as well as implicit memory management.
Modern Day
These days, the old hierarchy is apparently forgotten (much like minicomputers). I observe that there is generally a much simpler 2-tier classification :- Low level : C, assembly language
- High level : absolutely every other programming language in wide use today
I find myself wondering where C++ and Objective-C fit in this classification scheme. Then I remember that it doesn’t matter and this is all academic.
Relevancy
I think about this because I have pretty much stuck to low-level programming all of my life, mostly due to my interest in game and multimedia-type programming. But the trends in computing have favored many higher level languages and programming paradigms. I woke up one day and realized that the kind of work I often do — lower level stuff — is not very common.I’m not here to argue that low or high level is superior. You know I’m all about using the appropriate tool for the job. But I sometimes find myself caught between worlds, having the defend and explain one to the other.
- On one hand, it’s not unusual for the multitudes of programmers working at the high level to gasp and wonder why I or anyone else would ever use C or assembly language for anything when there are so many beautiful high level languages. I patiently explain that those languages have to be written in some other language (at first) and that they need to run on some operating system and that most assuredly won’t be written in a high level language. For further reading, I refer them to Joel Spolsky’s great essay called Back to Basics which describes why it can be useful to know at least a little bit about how the computer does what it does at the lowest levels.
- On the other hand, believe it or not, I sometimes have to defend the merits of high level languages to my low level brethren. I’ll often hear variations of, "Any program can be written in C. Using a high level language to achieve the same will create a slow and bloated solution." I try to explain that the trade-off in time to complete the programming task weighed against the often-negligible performance hit of what is often an I/O-bound operation in the first place makes it worthwhile to use the high level language for a wide variety of tasks.
Or I just ignore them. That’s actually the best strategy.
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MP4 codec support in Chromium
18 mai 2018, par StagganWe have integrated Chromium Embedded Framework into our Windows game to allow us to render web pages from within our application, and everything works fine, except MP4 videos.
I understand Chromium does not include this codec due to licensing issues, but can anyone provide details on how we can add support, even if we have to license a codec for it.
All the information we can find seems to be old, and the functions referred to appear to be deprecated... so we are at a bit of a loss.
All the video serving networks we have spoken to appear to serve MP4s.. so changing encoding does not seem to be an option.
Any advice would be greatly appreciated.
Thanks
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What flags should enable to get maximum performance using ffpeg ?
19 octobre 2017, par SamI am using windows, my application is using opencv and for codecs, we have used ffmpeg. We see the performance is very slow, we want to improve it by compiling ffmpeg with all flags which could take hardware and GPU acceleation into consideration.
I did./configure --helpinside the ffmpeg source, I see below list option, can you please tell which all can really imporve the performance. Note that we would like to take advantage of hardware and gpu capabilities.$ ./configure —help
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 filtersStandard 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 [/usr/local]
—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 targetsLicensing 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 (sma ller 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
—disable-ffserver disable ffserver buildDocumentation 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 pagesComponent options :
—disable-avdevice disable libavdevice build
—disable-avcodec disable libavcodec build
—disable-avformat disable libavformat build
—disable-swresample disable libswresample build
—disable-swscale disable libswscale build
—disable-postproc disable libpostproc build
—disable-avfilter disable libavfilter build
—enable-avresample enable libavresample build [no]
—disable-pthreads disable pthreads [autodetect]
—disable-w32threads disable Win32 threads [autodetect]
—disable-os2threads disable OS/2 threads [autodetect]
—disable-network disable network support [no]
—disable-dct disable DCT code
—disable-dwt disable DWT code
—disable-error-resilience disable error resilience code
—disable-lsp disable LSP code
—disable-lzo disable LZO decoder code
—disable-mdct disable MDCT code
—disable-rdft disable RDFT code
—disable-fft disable FFT code
—disable-faan disable floating point AAN (I)DCT code
—disable-pixelutils disable pixel utils in libavutilIndividual 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
—disable-v4l2_m2m disable V4L2 mem2mem code [autodetect]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 is not used [no]
—disable-iconv disable iconv [autodetect]
—disable-jack disable libjack support [autodetect]
—enable-jni enable JNI support [no]
—enable-ladspa enable LADSPA audio filtering [no]
—enable-libass enable libass subtitles rendering,
needed for subtitles and ass filter [no]
—enable-libbluray enable BluRay reading using libbluray [no]
—enable-libbs2b enable bs2b DSP library [no]
—enable-libcaca enable textual display using libcaca [no]
—enable-libcelt enable CELT decoding via libcelt [no]
—enable-libcdio enable audio CD grabbing with libcdio [no]
—enable-libdc1394 enable IIDC-1394 grabbing using libdc1394
and libraw1394 [no]
—enable-libfdk-aac enable AAC de/encoding via libfdk-aac [no]
—enable-libflite enable flite (voice synthesis) support via libflite [ no]
—enable-libfontconfig enable libfontconfig, useful for drawtext filter [no]
—enable-libfreetype enable libfreetype, needed for drawtext filter [no]
—enable-libfribidi enable libfribidi, improves drawtext filter [no]
—enable-libgme enable Game Music Emu via libgme [no]
—enable-libgsm enable GSM de/encoding via libgsm [no]
—enable-libiec61883 enable iec61883 via libiec61883 [no]
—enable-libilbc enable iLBC de/encoding via libilbc [no]
—enable-libkvazaar enable HEVC encoding via libkvazaar [no]
—enable-libmodplug enable ModPlug via libmodplug [no]
—enable-libmp3lame enable MP3 encoding via libmp3lame [no]
—enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no ]
—enable-libopencore-amrwb enable AMR-WB decoding via libopencore-amrwb [no]
—enable-libopencv enable video filtering via libopencv [no]
—enable-libopenh264 enable H.264 encoding via OpenH264 [no]
—enable-libopenjpeg enable JPEG 2000 de/encoding via OpenJPEG [no]
—enable-libopenmpt enable decoding tracked files via libopenmpt [no]
—enable-libopus enable Opus de/encoding via libopus [no]
—enable-libpulse enable Pulseaudio input via libpulse [no]
—enable-librsvg enable SVG rasterization via librsvg [no]
—enable-librubberband enable rubberband needed for rubberband filter [no]
—enable-librtmp enable RTMP[E] support via librtmp [no]
—enable-libshine enable fixed-point MP3 encoding via libshine [no]
—enable-libsmbclient enable Samba protocol via libsmbclient [no]
—enable-libsnappy enable Snappy compression, needed for hap encoding [n o]
—enable-libsoxr enable Include libsoxr resampling [no]
—enable-libspeex enable Speex de/encoding via libspeex [no]
—enable-libssh enable SFTP protocol via libssh [no]
—enable-libtesseract enable Tesseract, needed for ocr filter [no]
—enable-libtheora enable Theora encoding via libtheora [no]
—enable-libtwolame enable MP2 encoding via libtwolame [no]
—enable-libv4l2 enable libv4l2/v4l-utils [no]
—enable-libvidstab enable video stabilization using vid.stab [no]
—enable-libvmaf enable vmaf filter via libvmaf [no]
—enable-libvo-amrwbenc enable AMR-WB encoding via libvo-amrwbenc [no]
—enable-libvorbis enable Vorbis en/decoding via libvorbis,
native implementation exists [no]
—enable-libvpx enable VP8 and VP9 de/encoding via libvpx [no]
—enable-libwavpack enable wavpack encoding via libwavpack [no]
—enable-libwebp enable WebP encoding via libwebp [no]
—enable-libx264 enable H.264 encoding via x264 [no]
—enable-libx265 enable HEVC encoding via x265 [no]
—enable-libxavs enable AVS encoding via xavs [no]
—enable-libxcb enable X11 grabbing using XCB [autodetect]
—enable-libxcb-shm enable X11 grabbing shm communication [autodetect]
—enable-libxcb-xfixes enable X11 grabbing mouse rendering [autodetect]
—enable-libxcb-shape enable X11 grabbing shape rendering [autodetect]
—enable-libxvid enable Xvid encoding via xvidcore,
native MPEG-4/Xvid encoder exists [no]
—enable-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]
—disable-lzma disable lzma [autodetect]
—enable-decklink enable Blackmagic DeckLink I/O support [no]
—enable-libndi_newtek enable Newteck NDI I/O support [no]
—enable-mediacodec enable Android MediaCodec support [no]
—enable-libmysofa enable libmysofa, needed for sofalizer filter [no]
—enable-openal enable OpenAL 1.1 capture support [no]
—enable-opencl enable OpenCL code
—enable-opengl enable OpenGL rendering [no]
—enable-openssl enable openssl, needed for https support
if gnutls is not used [no]
—disable-sndio disable sndio support [autodetect]
—disable-schannel disable SChannel SSP, needed for TLS support on
Windows if openssl and gnutls are not used [autodetec t]
—disable-sdl2 disable sdl2 [autodetect]
—disable-securetransport disable Secure Transport, needed for TLS support
on OSX if openssl and gnutls are not used [autodetect ]
—disable-xlib disable xlib [autodetect]
—disable-zlib disable zlib [autodetect]The following libraries provide various hardware acceleration features :
—disable-audiotoolbox disable Apple AudioToolbox code [autodetect]
—disable-cuda disable dynamically linked Nvidia CUDA code [autodete ct]
—enable-cuda-sdk enable CUDA features that require the CUDA SDK [no]
—disable-cuvid disable Nvidia CUVID support [autodetect]
—disable-d3d11va disable Microsoft Direct3D 11 video acceleration code [autodetect]
—disable-dxva2 disable Microsoft DirectX 9 video acceleration code [ autodetect]
—enable-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 (Raspbe rry Pi) via MMAL [no]
—disable-nvenc disable Nvidia video encoding code [autodetect]
—enable-omx enable OpenMAX IL code [no]
—enable-omx-rpi enable OpenMAX IL code for Raspberry Pi [no]
—enable-rkmpp enable Rockchip Media Process Platform code [no]
—disable-vaapi disable Video Acceleration API (mainly Unix/Intel) co de [autodetect]
—disable-vda disable Apple Video Decode Acceleration code [autodet ect]
—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 []
—cpu=CPU select the minimum required CPU (affects
instruction selection, may crash on older CPUs)
—cross-prefix=PREFIX use PREFIX for compilation tools []
—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-exec=CMD command to run executables on target
—target-path=DIR path to view of build directory on target
—target-samples=DIR path to samples directory on target
—tempprefix=PATH force fixed dir/prefix instead of mktemp for checks
—toolchain=NAME set tool defaults according to NAME
—nm=NM use nm tool NM [nm -g]
—ar=AR use archive tool AR [ar]
—as=AS use assembler AS []
—ln_s=LN_S use symbolic link tool LN_S [ln -s -f]
—strip=STRIP use strip tool STRIP [strip]
—windres=WINDRES use windows resource compiler WINDRES [windres]
—x86asmexe=EXE use nasm-compatible assembler EXE [nasm]
—cc=CC use C compiler CC [gcc]
—cxx=CXX use C compiler CXX [g++]
—objcc=OCC use ObjC compiler OCC [gcc]
—dep-cc=DEPCC use dependency generator DEPCC [gcc]
—nvcc=NVCC use Nvidia CUDA compiler NVCC [nvcc]
—ld=LD use linker LD []
—pkg-config=PKGCONFIG use pkg-config tool PKGCONFIG [pkg-config]
—pkg-config-flags=FLAGS pass additional flags to pkgconf []
—ranlib=RANLIB use ranlib RANLIB [ranlib]
—doxygen=DOXYGEN use DOXYGEN to generate API doc [doxygen]
—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 []
—extra-cflags=ECFLAGS add ECFLAGS to CFLAGS []
—extra-cxxflags=ECFLAGS add ECFLAGS to CXXFLAGS []
—extra-objcflags=FLAGS add FLAGS to OBJCFLAGS []
—extra-ldflags=ELDFLAGS add ELDFLAGS to LDFLAGS []
—extra-ldexeflags=ELDFLAGS add ELDFLAGS to LDEXEFLAGS []
—extra-ldlibflags=ELDFLAGS add ELDFLAGS to LDLIBFLAGS []
—extra-libs=ELIBS add ELIBS []
—extra-version=STRING version string suffix []
—optflags=OPTFLAGS override optimization-related compiler flags
—nvccflags=NVCCFLAGS override nvcc flags [-gencode arch=compute_30,code=sm _30 -O2]
—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 variablesAdvanced 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 [256]Optimization options (experts only) :
—disable-asm disable all assembly optimizations
—disable-altivec disable AltiVec optimizations
—disable-vsx disable VSX optimizations
—disable-power8 disable POWER8 optimizations
—disable-amd3dnow disable 3DNow ! optimizations
—disable-amd3dnowext disable 3DNow ! extended optimizations
—disable-mmx disable MMX optimizations
—disable-mmxext disable MMXEXT optimizations
—disable-sse disable SSE optimizations
—disable-sse2 disable SSE2 optimizations
—disable-sse3 disable SSE3 optimizations
—disable-ssse3 disable SSSE3 optimizations
—disable-sse4 disable SSE4 optimizations
—disable-sse42 disable SSE4.2 optimizations
—disable-avx disable AVX optimizations
—disable-xop disable XOP optimizations
—disable-fma3 disable FMA3 optimizations
—disable-fma4 disable FMA4 optimizations
—disable-avx2 disable AVX2 optimizations
—disable-aesni disable AESNI optimizations
—disable-armv5te disable armv5te optimizations
—disable-armv6 disable armv6 optimizations
—disable-armv6t2 disable armv6t2 optimizations
—disable-vfp disable VFP optimizations
—disable-neon disable NEON optimizations
—disable-inline-asm disable use of inline assembly
—disable-x86asm disable use of standalone x86 assembly
—disable-mipsdsp disable MIPS DSP ASE R1 optimizations
—disable-mipsdspr2 disable MIPS DSP ASE R2 optimizations
—disable-msa disable MSA optimizations
—disable-mipsfpu disable floating point MIPS optimizations
—disable-mmi disable Loongson SIMD optimizations
—disable-fast-unaligned consider unaligned accesses slowDeveloper options (useful when working on FFmpeg itself) :
—disable-debug disable debugging symbols
—enable-debug=LEVEL set the debug level []
—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 arbitra ry data
—valgrind=VALGRIND run "make fate" tests through valgrind to detect memo ry
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 APINOTE : Object files are built at the place where configure is launched.
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