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Autres articles (77)
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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 (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
Sur d’autres sites (8583)
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avcodec : add Newtek SpeedHQ decoder
8 janvier 2017, par Steinar H. Gundersonavcodec : add Newtek SpeedHQ decoder
This decoder can decode all existing SpeedHQ formats (SHQ0–5, 7, and 9),
including correct decoding of the alpha channel.1080p is decoded in 142 fps on one core of my i7-4600U (2.1 GHz Haswell),
about evenly split between bitstream reader and IDCT. There is currently
no attempt at slice or frame threading, even though the format trivially
supports both.NewTek very helpfully provided a full set of SHQ samples, as well as
source code for an SHQ2 encoder (not included) and assistance with
understanding some details of the format. -
"-bash : ffmpeg@2.8 : command not found" Mac OS X 10.11 El Capitan
3 janvier 2021, par Billy McRaeSo I am using that operating system, and because of that, had to try workarounds for months just to get ffmpeg at all. I happened to find someone who said to download an older version so I bumped my head against the desk and yelled "Why didn't I think of that before ?!" So after a very long process, ffmpeg@2.8 finally installed via Homebrew after I left it overnight, literally for that long.


With one issue, leaving me the same as before...


MacBook-Pro-2:core_stable duckman$ ffmpeg@2.8
-bash: ffmpeg@2.8: command not found



I tried just "ffmpeg" as well...


MacBook-Pro-2:core_stable duckman$ ffmpeg --version
-bash: ffmpeg: command not found



I also tried exporting it to "path", whatever that means, as the install gave me an error that said it was "keg-only".


MacBook-Pro-2:core_stable duckman$ echo 'export PATH="/usr/local/opt/ffmpeg@2.8/bin:$PATH"' >> /Users/duckman/.bash_profile
MacBook-Pro-2:core_stable duckman$ export LDFLAGS="-L/usr/local/opt/ffmpeg@2.8/lib"
MacBook-Pro-2:core_stable duckman$ export CPPFLAGS="-I/usr/local/opt/ffmpeg@2.8/include"
MacBook-Pro-2:core_stable duckman$ export PKG_CONFIG_PATH="/usr/local/opt/ffmpeg@2.8/lib/pkgconfig"



It still wouldn't work.


which ffmpeg gave me nothing :


MacBook-Pro-2:core_stable duckman$ which ffmpeg
MacBook-Pro-2:core_stable duckman$



which ffmpeg@2.8 also gave me nothing :


MacBook-Pro-2:core_stable duckman$ which ffmpeg@2.8
MacBook-Pro-2:core_stable duckman$



I also tried another user's suggestion to move ffmpeg to /usr/local/bin/, which also didn't work :


MacBook-Pro-2:core_stable duckman$ echo 'export PATH="/usr/local/opt/ffmpeg@2.8/bin:$PATH"' >> /usr/local/bin/
-bash: /usr/local/bin/: Is a directory



locate ffmpeg@2.8 gave me this :


MacBook-Pro-2:core_stable duckman$ locate ffmpeg@2.8
/usr/local/Cellar/ffmpeg@2.8
/usr/local/Cellar/ffmpeg@2.8/.DS_Store
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/.brew
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/.brew/ffmpeg@2.8.rb
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/COPYING.GPLv2
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/COPYING.GPLv3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/COPYING.LGPLv2.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/COPYING.LGPLv3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/Changelog
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/INSTALL_RECEIPT.json
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/LICENSE.md
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/README.md
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/aviocat
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/bisect-create
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/clean-diff
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/crypto_bench
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/cws2fws
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/dvd2concat
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffescape
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffeval
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffhash
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffmpeg
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffplay
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffprobe
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ffserver
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/fourcc2pixfmt
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/gen-rc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/graph2dot
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/ismindex
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/make_chlayout_test
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/missing_codec_desc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/normalize.py
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/patcheck
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/pktdumper
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/plotframes
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/probetest
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/qt-faststart
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/seek_print
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/sidxindex
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/trasher
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/uncoded_frame
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/unwrap-diff
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/bin/zmqshell.py
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/avcodec.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/avfft.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/d3d11va.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/dv_profile.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/dxva2.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/old_codec_ids.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/qsv.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/vaapi.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/vda.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/vdpau.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/videotoolbox.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/vorbis_parser.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavcodec/xvmc.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavdevice
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavdevice/avdevice.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavdevice/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/asrc_abuffer.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/avcodec.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/avfilter.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/avfiltergraph.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/buffersink.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/buffersrc.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavfilter/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavformat
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavformat/avformat.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavformat/avio.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavformat/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavresample
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavresample/avresample.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavresample/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/adler32.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/aes.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/attributes.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/audio_fifo.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/audioconvert.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/avassert.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/avconfig.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/avstring.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/avutil.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/base64.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/blowfish.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/bprint.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/bswap.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/buffer.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/camellia.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/cast5.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/channel_layout.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/common.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/cpu.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/crc.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/dict.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/display.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/downmix_info.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/error.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/eval.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/ffversion.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/fifo.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/file.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/frame.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/hash.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/hmac.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/imgutils.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/intfloat.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/intreadwrite.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/lfg.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/log.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/lzo.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/macros.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/mathematics.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/md5.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/mem.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/motion_vector.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/murmur3.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/old_pix_fmts.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/opencl.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/opt.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/parseutils.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/pixdesc.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/pixelutils.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/pixfmt.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/random_seed.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/rational.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/replaygain.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/ripemd.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/samplefmt.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/sha.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/sha512.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/stereo3d.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/tea.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/threadmessage.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/time.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/timecode.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/timestamp.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/twofish.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libavutil/xtea.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libpostproc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libpostproc/postprocess.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libpostproc/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswresample
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswresample/swresample.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswresample/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswscale
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswscale/swscale.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/include/libswscale/version.h
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavcodec.56.60.100.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavcodec.56.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavcodec.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavcodec.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavdevice.56.4.100.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavdevice.56.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavdevice.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavdevice.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavfilter.5.40.101.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavfilter.5.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavfilter.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavfilter.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavformat.56.40.101.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavformat.56.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavformat.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavformat.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavresample.2.1.0.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavresample.2.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavresample.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavresample.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavutil.54.31.100.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavutil.54.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavutil.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libavutil.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libpostproc.53.3.100.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libpostproc.53.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libpostproc.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libpostproc.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswresample.1.2.101.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswresample.1.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswresample.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswresample.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswscale.3.1.101.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswscale.3.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswscale.a
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/libswscale.dylib
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavcodec.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavdevice.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavfilter.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavformat.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavresample.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libavutil.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libpostproc.pc
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/lib/pkgconfig/libswscale.pc
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffmpeg-protocols.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffmpeg-resampler.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffmpeg-scaler.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffmpeg-utils.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffmpeg.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffplay-all.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffplay.html
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffprobe.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffserver-all.html
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/doc/ffmpeg/ffserver.html
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/ffmpeg/libvpx-720p.ffpreset
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/ffmpeg/libvpx-720p50_60.ffpreset
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-codecs.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-devices.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-filters.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-formats.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-protocols.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-resampler.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-scaler.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg-utils.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffmpeg.1
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/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffprobe-all.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffprobe.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffserver-all.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man1/ffserver.1
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libavcodec.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libavdevice.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libavfilter.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libavformat.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libavutil.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libswresample.3
/usr/local/Cellar/ffmpeg@2.8/2.8.17_4/share/man/man3/libswscale.3
/usr/local/Homebrew/Library/Taps/homebrew/homebrew-core/Formula/ffmpeg@2.8.rb
/usr/local/opt/ffmpeg@2.8



PLEASE help because I've been trying so many wacky ways to install ffmpeg for months and nothing has worked for me. This is the closest I have gotten, with all the dependencies (apparently) installed, and it still doesn't work. For everyone else on the planet pretty much as I gather, they can install ffmpeg with a simple command on the terminal, and for me it has been the opposite way, and it is very frustrating and it is embarrassing that I have to have this older computer as my main.


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Merge two video devices into a third device by placing the video next to each other
14 janvier 2021, par Lennart Van der GotenThe Situation


I have two webcams (with associated video devices
/dev/video0
and/dev/video1
). The first webcam generates a resolution of 720p while the other one generates 1080p.

The Task


I would like to create a new video device
/dev/video2
that is defined by putting the video from the first webcame next to the one coming from the second webcam.