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  • Sélection de projets utilisant MediaSPIP

    29 avril 2011, par

    Les exemples cités ci-dessous sont des éléments représentatifs d’usages spécifiques de MediaSPIP pour certains projets.
    Vous pensez avoir un site "remarquable" réalisé avec MediaSPIP ? Faites le nous savoir ici.
    Ferme MediaSPIP @ Infini
    L’Association Infini développe des activités d’accueil, de point d’accès internet, de formation, de conduite de projets innovants dans le domaine des Technologies de l’Information et de la Communication, et l’hébergement de sites. Elle joue en la matière un rôle unique (...)

  • Les thèmes de MediaSpip

    4 juin 2013

    3 thèmes sont proposés à l’origine par MédiaSPIP. L’utilisateur MédiaSPIP peut rajouter des thèmes selon ses besoins.
    Thèmes MediaSPIP
    3 thèmes ont été développés au départ pour MediaSPIP : * SPIPeo : thème par défaut de MédiaSPIP. Il met en avant la présentation du site et les documents média les plus récents ( le type de tri peut être modifié - titre, popularité, date) . * Arscenic : il s’agit du thème utilisé sur le site officiel du projet, constitué notamment d’un bandeau rouge en début de page. La structure (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

Sur d’autres sites (12038)

  • FFMPEG equalizer clipping audio despite low volume

    23 juillet 2023, par Tom

    I'm using ffmpeg to equalise audio transferred from historic gramophone records, using standard eqs of the era.

    


    The frequency and gain values are taken from the graphic eq settings listed on the Audacity website - https://plugins.audacityteam.org/additional-resources/eq-curves/playback-equalization-for-78-rpm-shellacs-and-early-33-lps

    


    An example of the Blumlien300 curve here - https://2850314611-files.gitbook.io/ /files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FklCVENFte0GRy5IqVz0W%2Fuploads%2FJHS6Mv121GX1h898xy4K%2FBlumlein300_3.2.2.txt?alt=media&token=8d04df05-366d-47f8-8c82-149fa5eda59a

    


    The audio file I'm testing with has a digital peak of -35db, the highest gain value applied on this eq is 17db. When I run the ffmpeg command though, it reports the audio is clipping and the result is a horribly distorted recording.

    


    Can anyone advise why this is happening ? I run the same file through the same eq settings in Audacity and the result is as expected.

    


    set eq="equalizer=f=22050:g=-0.4,equalizer=f=21203.720228928225:g=-0.4,equalizer=f=20389.920705063967:g=-0.4,equalizer=f=19607.354835383569:g=-0.4,equalizer=f=18854.823871147240:g=-0.4,equalizer=f=18131.175071633737:g=-0.4,equalizer=f=17435.299938351014:g=-0.4,equalizer=f=16766.132517017904:g=-0.4,equalizer=f=16122.647764715837:g=-0.4,equalizer=f=15503.859979709296:g=-0.4,equalizer=f=14908.821291529812:g=-0.4,equalizer=f=14336.620209010769:g=-0.4,equalizer=f=13786.380224048187:g=-0.4,equalizer=f=13257.258468950000:g=-0.4,equalizer=f=12748.444425315412:g=-0.4,equalizer=f=12259.158682468413:g=-0.4,equalizer=f=11788.651743541806:g=-0.4,equalizer=f=11336.202877384472:g=-0.4,equalizer=f=10901.119014532051:g=-0.4,equalizer=f=10482.733685550458:g=-0.4,equalizer=f=10080.406000125797:g=-0.4,equalizer=f=9693.519665336817:g=-0.4,equalizer=f=9321.482041606178:g=-0.4,equalizer=f=8963.723234884175:g=-0.4,equalizer=f=8619.695223674737:g=-0.4,equalizer=f=8288.871019565895:g=-0.4,equalizer=f=7970.743859979441:g=-0.4,equalizer=f=7664.826431902562:g=-0.4,equalizer=f=7370.650125412990:g=-0.4,equalizer=f=7087.764315853595:g=-0.4,equalizer=f=6815.735673557399:g=-0.4,equalizer=f=6554.147500065165:g=-0.4,equalizer=f=6302.599089819104:g=-0.4,equalizer=f=6060.705116354743:g=-0.4,equalizer=f=5828.095042050793:g=-0.4,equalizer=f=5604.412550532827:g=-0.4,equalizer=f=5389.315000861326:g=-0.4,equalizer=f=5182.472902668021:g=-0.394052055589,equalizer=f=4983.569411436476:g=-0.386751590389,equalizer=f=4792.299843153906:g=-0.376185664074,equalizer=f=4608.371207590573:g=-0.362543760251,equalizer=f=4431.501759492006:g=-0.345993198097,equalizer=f=4261.420566996452:g=-0.330710126890,equalizer=f=4097.867096616487:g=-0.318503033191,equalizer=f=3940.590814149046:g=-0.309564283335,equalizer=f=3789.350800902538:g=-0.303741189604,equalizer=f=3643.915384653179:g=-0.300601888512,equalizer=f=3504.061784765236:g=-0.3,equalizer=f=3369.575770931567:g=-0.3,equalizer=f=3240.251335011708:g=-0.3,equalizer=f=3115.890375464830:g=-0.3,equalizer=f=2996.302393894170:g=-0.3,equalizer=f=2881.304203238093:g=-0.3,equalizer=f=2770.719647160795:g=-0.3,equalizer=f=2664.379330212802:g=-0.3,equalizer=f=2562.120358347913:g=-0.3,equalizer=f=2463.786089399117:g=-0.3,equalizer=f=2369.225893131248:g=-0.3,equalizer=f=2278.294920502843:g=-0.3,equalizer=f=2190.853881783698:g=-0.3,equalizer=f=2106.768833188346:g=-0.296437432785,equalizer=f=2025.910971698469:g=-0.290217913930,equalizer=f=1948.156437760116:g=-0.280922418484,equalizer=f=1873.386125553329:g=-0.268550946447,equalizer=f=1801.485500543704:g=-0.253103497820,equalizer=f=1732.344424036255:g=-0.235614749092,equalizer=f=1665.856984462975:g=-0.218076286078,equalizer=f=1601.921335145533:g=-0.200537822606,equalizer=f=1540.439538284674:g=-0.184632657170,equalizer=f=1481.317414937308:g=-0.168779161348,equalizer=f=1424.464400751469:g=-0.152925665153,equalizer=f=1369.793407238189:g=-0.137072168707,equalizer=f=1317.220688367753:g=-0.121218672255,equalizer=f=1266.665712285991:g=-0.105365175802,equalizer=f=1218.051037954117:g=-0.088396941462,equalizer=f=1171.302196523118:g=-0.070858476440,equalizer=f=1126.347577261013:g=-0.053320011417,equalizer=f=1083.118317858216:g=-0.034770724190,equalizer=f=1041.548198942992:g=-0.013200571808,equalizer=f=1001.573542645411:g=0.011445558081,equalizer=f=963.133115054414:g=0.039167665478,equalizer=f=926.168032418592:g=0.069965750383,equalizer=f=890.621670946974:g=0.103839812794,equalizer=f=856.439580071665:g=0.140789852714,equalizer=f=823.569399039473:g=0.180815870141,equalizer=f=791.960776704742:g=0.223158863450,equalizer=f=761.565294400547:g=0.266149082252,equalizer=f=732.336391770094:g=0.311823093692,equalizer=f=704.229295444710:g=0.360237839089,equalizer=f=677.200950459179:g=0.413174176689,equalizer=f=651.209954299352:g=0.471478099167,equalizer=f=626.216493481026:g=0.535493496953,equalizer=f=602.182282562909:g=0.606978871276,equalizer=f=579.070505500287:g=0.684199304160,equalizer=f=556.845759249530:g=0.767096732395,equalizer=f=535.473999537060:g=0.853776460170,equalizer=f=514.922488709709:g=0.943323717867,equalizer=f=495.159745586582:g=1.036571598687,equalizer=f=476.155497235608:g=1.135335711982,equalizer=f=457.880632600910:g=1.237175803242,equalizer=f=440.307157909949:g=1.342335109599,equalizer=f=423.408153792158:g=1.453088412615,equalizer=f=407.157734043353:g=1.569993670188,equalizer=f=391.531005972773:g=1.688508164136,equalizer=f=376.504032271996:g=1.808802987893,equalizer=f=362.053794347337:g=1.934465396527,equalizer=f=348.158157059540:g=2.065823830001,equalizer=f=334.795834816768:g=2.204891058267,equalizer=f=321.946358968944:g=2.352009664049,equalizer=f=309.590046453497:g=2.509552803849,equalizer=f=297.707969644483:g=2.678532979186,equalizer=f=286.281927358906:g=2.856115742576,equalizer=f=275.294416975809:g=3.041612670003,equalizer=f=264.728607625441:g=3.230723044219,equalizer=f=254.568314407418:g=3.422700948357,equalizer=f=244.797973598401:g=3.621312762050,equalizer=f=235.402618811295:g=3.826195809769,equalizer=f=226.367858069467:g=4.034154835453,equalizer=f=217.679851760848:g=4.246639157749,equalizer=f=209.325291438168:g=4.468048945659,equalizer=f=201.291379432825:g=4.698686666092,equalizer=f=193.565809251186:g=4.938552319047,equalizer=f=186.136746723276:g=5.187645904525,equalizer=f=178.992811874976:g=5.445967422525,equalizer=f=172.123061495972:g=5.712025685327,equalizer=f=165.516972376744:g=5.984236264250,equalizer=f=159.164425188922:g=6.258981796419,equalizer=f=153.055688984312:g=6.515823590632,equalizer=f=147.181406288853:g=6.777692051390,equalizer=f=141.532578768664:g=7.044587178695,equalizer=f=136.100553446236:g=7.314095599483,equalizer=f=130.877009445637:g=7.583605034445,equalizer=f=125.853945246444:g=7.853114469407,equalizer=f=121.023666426868:g=8.146285201135,equalizer=f=116.378773877299:g=8.444439101287,equalizer=f=111.912152466211:g=8.742593001439,equalizer=f=107.616960141075:g=9.042209423688,equalizer=f=103.486617447577:g=9.344900874707,equalizer=f=99.514797451091:g=9.650668303691,equalizer=f=95.695416044961:g=9.959511710641,equalizer=f=92.022622630759:g=10.271431095557,equalizer=f=88.490791156230:g=10.586541422511,equalizer=f=85.094511497198:g=10.906991735356,equalizer=f=81.828581170245:g=11.233594002758,equalizer=f=78.687997363448:g=11.556996378650,equalizer=f=75.667949272979:g=11.873211536187,equalizer=f=72.763810733831:g=12.194794278600,equalizer=f=69.971133133372:g=12.521192148224,equalizer=f=67.285638596875:g=12.846501740168,equalizer=f=64.703213434600:g=13.169127539473,equalizer=f=62.219901840358:g=13.492484068742,equalizer=f=59.831899831942:g=13.820346094285,equalizer=f=57.535549424116:g=14.145340590334,equalizer=f=55.327333025244:g=14.467659297988,equalizer=f=53.203868048980:g=14.789401139821,equalizer=f=51.161901732761:g=15.111142981226,equalizer=f=49.198306155165:g=15.437629968456,equalizer=f=47.310073444503:g=15.770860796927,equalizer=f=45.494311171305:g=16.104091624940,equalizer=f=43.748237917649:g=16.412536097232,equalizer=f=42.069179016527:g=16.579143834849,equalizer=f=40.454562454745:g=16.588876722789,equalizer=f=38.901914933067:g=16.461103901687,equalizer=f=37.408858077565:g=16.215674576171,equalizer=f=35.973104796389:g=15.850016386783,equalizer=f=34.592455776352:g=15.350234288456,equalizer=f=33.264796113983:g=14.615823142814,equalizer=f=31.988092075884:g=13.626809695512,equalizer=f=30.760387983412:g=12.332756508563,equalizer=f=29.579803216941:g=10.518513413063,equalizer=f=28.444529335092:g=8.346792732977,equalizer=f=27.352827304528:g=5.833681758551,equalizer=f=26.303024836072:g=3.097942665008,equalizer=f=25.293513823067:g=0.163604913582,equalizer=f=24.322747878043:g=-2.887748621210,equalizer=f=23.389239963935:g=-6.091081601564,equalizer=f=22.491560116216:g=-9.478973229620,equalizer=f=21.628333252442:g=-12.539218030638,equalizer=f=20.798237065887:g=-14.384804507659,equalizer=f=20:g=-15"
ffmpeg -i "File.wav" -af %eq% -c:a pcm_s24le out.wav


    


  • using ffmpeg.js to play H265 video, only play hvc1 format, can't play hev1 format, is there anyway to play hev1 ?

    1er novembre 2019, par Alex

    I compiled ffmpeg into ffmpeg.js and ffmpeg.wasm by using emscripten, so that it can run in the browser and play H265 video.

    However, I found that only the hvc1 format can be played.
    Like that：

    Stream #0:0(und): Video: hevc (Main) (hvc1 / 0x31637668), yuv420p(tv, bt709, progressive), 1280x720, 854 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)

    and the hev1 format cannot be played.Like that :

    Stream #0:0(und): Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 829 kb/s, 25 fps, 25 tbr, 12800 tbn, 25 tbc (default)

    Web browser’s Console has this errors

    libffmpeg.js:1 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x644b80] reached eof, corrupted CTTS atom
    
 >put_char @ libffmpeg.js:1
    
 >write @ libffmpeg.js:1
    
 >write @ libffmpeg.js:1
    
 >doWritev @ libffmpeg.js:1
    
 >___syscall146 @ libffmpeg.js:1
    
 >(anonymous) @ wasm-009a4202-743:1
    
 >(anonymous) @ wasm-009a4202-739:1
    
 >(anonymous) @ wasm-009a4202-741:1
    
 >(anonymous) @ wasm-009a4202-742:1
    
 >(anonymous) @ wasm-009a4202-437:1
    
 >(anonymous) @ wasm-009a4202-2083:1
    
 >(anonymous) @ wasm-009a4202-87:1
    
 >(anonymous) @ wasm-009a4202-923:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-2864:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-3015:1
    
 >(anonymous) @ wasm-009a4202-247:1
    
 >(anonymous) @ wasm-009a4202-1073:1
    
 >(anonymous) @ wasm-009a4202-2261:1
    
 >(anonymous) @ wasm-009a4202-2562:1
    
 >(anonymous) @ libffmpeg.js:1
    
 >Decoder.openDecoder @ decoder.js:48
    
 >Decoder.processReq @ decoder.js:165
    
 >self.onmessage @ decoder.js:248
    
libffmpeg.js:1 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x644b80] error reading header
    
 >put_char @ libffmpeg.js:1
    
 >write @ libffmpeg.js:1
    
 >write @ libffmpeg.js:1
    
 >doWritev @ libffmpeg.js:1
    
 >___syscall146 @ libffmpeg.js:1
    
 >(anonymous) @ wasm-009a4202-743:1
    
 >(anonymous) @ wasm-009a4202-739:1
    
 >(anonymous) @ wasm-009a4202-741:1
    
 >(anonymous) @ wasm-009a4202-742:1
    
 >(anonymous) @ wasm-009a4202-437:1
    
 >(anonymous) @ wasm-009a4202-2083:1
    
 >(anonymous) @ wasm-009a4202-87:1
    
 >(anonymous) @ wasm-009a4202-1073:1
    
 >(anonymous) @ wasm-009a4202-2261:1
    
 >(anonymous) @ wasm-009a4202-2562:1
    
 >(anonymous) @ libffmpeg.js:1
    
 >Decoder.openDecoder @ decoder.js:48
    
 >Decoder.processReq @ decoder.js:165
    
 >self.onmessage @ decoder.js:248
    
common.js:58 [2019-11-1 18:23:25:529][Decoder][IF] openDecoder return 8

    ffplay can play these two, why can only play hvc1 after compiling into ffmpeg.js and ffmpeg.wasm ?

  • How to use ffmpeg to find commercial breaks and synchronize faster a subtitle ? [closed]

    2 juin 2021, par zick

    I found this command that help me to find faster the commercial breaks and syncronize faster a subtitle.
But I'm encountering some problems with this command and the first is that the result in the output.txt is in full and I want to be only what was detected (black_duration).

    


    ffmpeg -i "video.mp4" -vf "blackdetect=d=3:pix_th=0" -an -f null - 2>&1 | findstr black_duration > output.txt


    


    The second problem is that I want to be directly the exact timestamps with H:M:S , not in seconds.
For exemple : [blackdetect @ 0000006a59125100] black_start:276.125 black_end:279.125 black_duration:3 , to be [blackdetect @ 0000006a59125100] black_start:00:04:35.000 black_end:00:04:38.000 black_duration:3

    


    The third and last problem is I don't know how to make a batch from that command so I can use it for more than one file.

    


    Exemple of the output.txt

    


    frame=  184 fps=0.0 q=-0.0 size=N/A time=00:00:07.66 bitrate=N/A speed=15.3x    
frame=  388 fps=388 q=-0.0 size=N/A time=00:00:16.16 bitrate=N/A speed=16.1x    
frame=  581 fps=387 q=-0.0 size=N/A time=00:00:24.20 bitrate=N/A speed=16.1x    
frame=  788 fps=394 q=-0.0 size=N/A time=00:00:32.83 bitrate=N/A speed=16.4x    
frame=  988 fps=395 q=-0.0 size=N/A time=00:00:41.16 bitrate=N/A speed=16.4x    
frame= 1193 fps=397 q=-0.0 size=N/A time=00:00:49.70 bitrate=N/A speed=16.5x    
frame= 1382 fps=394 q=-0.0 size=N/A time=00:00:57.58 bitrate=N/A speed=16.4x    
frame= 1582 fps=395 q=-0.0 size=N/A time=00:01:05.91 bitrate=N/A speed=16.4x    
frame= 1776 fps=394 q=-0.0 size=N/A time=00:01:14.00 bitrate=N/A speed=16.4x    
frame= 1970 fps=393 q=-0.0 size=N/A time=00:01:22.08 bitrate=N/A speed=16.4x    
frame= 2174 fps=395 q=-0.0 size=N/A time=00:01:30.58 bitrate=N/A speed=16.4x    
frame= 2373 fps=395 q=-0.0 size=N/A time=00:01:38.87 bitrate=N/A speed=16.4x    
frame= 2562 fps=393 q=-0.0 size=N/A time=00:01:46.75 bitrate=N/A speed=16.4x    
frame= 2748 fps=392 q=-0.0 size=N/A time=00:01:54.50 bitrate=N/A speed=16.3x    
frame= 2943 fps=392 q=-0.0 size=N/A time=00:02:02.62 bitrate=N/A speed=16.3x    
frame= 3128 fps=390 q=-0.0 size=N/A time=00:02:10.33 bitrate=N/A speed=16.3x    
frame= 3310 fps=389 q=-0.0 size=N/A time=00:02:17.91 bitrate=N/A speed=16.2x    
frame= 3501 fps=388 q=-0.0 size=N/A time=00:02:25.87 bitrate=N/A speed=16.2x    
frame= 3681 fps=387 q=-0.0 size=N/A time=00:02:33.37 bitrate=N/A speed=16.1x    
frame= 3869 fps=386 q=-0.0 size=N/A time=00:02:41.20 bitrate=N/A speed=16.1x    
frame= 4074 fps=387 q=-0.0 size=N/A time=00:02:49.75 bitrate=N/A speed=16.1x    
frame= 4256 fps=386 q=-0.0 size=N/A time=00:02:57.33 bitrate=N/A speed=16.1x    
frame= 4443 fps=385 q=-0.0 size=N/A time=00:03:05.12 bitrate=N/A speed=16.1x    
frame= 4634 fps=385 q=-0.0 size=N/A time=00:03:13.08 bitrate=N/A speed=  16x    
frame= 4817 fps=384 q=-0.0 size=N/A time=00:03:20.70 bitrate=N/A speed=  16x    
frame= 5002 fps=384 q=-0.0 size=N/A time=00:03:28.41 bitrate=N/A speed=  16x    
frame= 5199 fps=384 q=-0.0 size=N/A time=00:03:36.62 bitrate=N/A speed=  16x    
frame= 5371 fps=383 q=-0.0 size=N/A time=00:03:43.79 bitrate=N/A speed=15.9x    
frame= 5555 fps=382 q=-0.0 size=N/A time=00:03:51.45 bitrate=N/A speed=15.9x    
frame= 5737 fps=381 q=-0.0 size=N/A time=00:03:59.04 bitrate=N/A speed=15.9x    
frame= 5924 fps=381 q=-0.0 size=N/A time=00:04:06.83 bitrate=N/A speed=15.9x    
frame= 6115 fps=381 q=-0.0 size=N/A time=00:04:14.79 bitrate=N/A speed=15.9x    
frame= 6322 fps=382 q=-0.0 size=N/A time=00:04:23.41 bitrate=N/A speed=15.9x    
frame= 6525 fps=383 q=-0.0 size=N/A time=00:04:31.87 bitrate=N/A speed=15.9x    
[blackdetect @ 0000006a59125100] black_start:276.125 black_end:279.125 black_duration:3
frame= 6727 fps=383 q=-0.0 size=N/A time=00:04:40.29 bitrate=N/A speed=  16x


    


    Thanks !

    


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