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Autres articles (90)

  • Modifier la date de publication

    21 juin 2013, par

    Comment changer la date de publication d’un média ?
    Il faut au préalable rajouter un champ "Date de publication" dans le masque de formulaire adéquat :
    Administrer > Configuration des masques de formulaires > Sélectionner "Un média"
    Dans la rubrique "Champs à ajouter, cocher "Date de publication "
    Cliquer en bas de la page sur Enregistrer

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

Sur d’autres sites (13297)

  • avfilter/scale_amf : Add AMF VPP & super resolution filters

    15 octobre 2024, par Evgeny Pavlov
    avfilter/scale_amf : Add AMF VPP & super resolution filters

    This commit adds two AMF filters : vpp_amf & sr_amf.
    
Both filters are using AMF hardware acceleration.
    
vpp_amf supports simple scaling algorithms & color conversion.
    
sr_amf supports advanced scaling algorithms such as FSR & can
    
be used for upscaling only.
    • [DH] configure
    • [DH] libavfilter/Makefile
    • [DH] libavfilter/allfilters.c
    • [DH] libavfilter/vf_amf_common.c
    • [DH] libavfilter/vf_amf_common.h
    • [DH] libavfilter/vf_sr_amf.c
    • [DH] libavfilter/vf_vpp_amf.c

  • How to make cropping when doing motion-tracking look super smooth ? (using cv2 and yolo v8)

    4 décembre 2024, par Thomas Lancer

    I'm using yolo to track a face in a video on a frame by frame basis, and then I'm using cv2 to crop the video (with some padding) around the speakers face so it creates a motion tracking type effect. (short example here : https://www.instagram.com/reel/DCIFkFEObkE/?hl=en)

    


    The problem I'm running into is my final crop looks "shaky". Like it's flickering a bit. I think this is because every frame yolo is updating the coordinates, and so there's a slight change in x, y and because of that it creates this shakiness/flickering effect. Here's what mine looks like compared to the example : https://drive.google.com/file/d/1MKHWK-5EH5abSq6i32r71GWld76tN1GP/view?usp=sharing

    


    You can see there's this "shakiness" type look to it. it's especially apparent when the speaker is relatively still.

    


    I've tried doing an exponential moving average and a few other averaging techniques but none have fixed it.

    


    Is my fundamental approach of doing a frame by frame crop wrong ? or is there just some smoothing algorithm or some dumb mistake that you think I may be making ? Any advice is mega appreciated !

    


  • ffmpeg overlay to scroll a super long image, blinking & glitchy issue

    17 janvier 2023, par goforu

    I have a super long image and want to scroll vertically using ffmpeg filter overlay, it takes about 10 mins to scroll from the top to the end. When the image is small and time is short it scroll very smoothly, but when it comes to a super long image and the time comes to 10 mins. It gets blinking and glitchy. How to solve this issue ?

    


    ffmpeg -y -r 1 -loop 1 -t 544.3800000000026 -i /Users/joey/Library/Application Support/Electron/tmp/content.png -r 60 -loop 1 -t 544.3800000000026 -i /Users/joey/Library/Application Support/Electron/tmp/bg.png -filter_complex [1:v]crop=1080:810:0:0,fps=60[v1];[v1][0:v]overlay=x=0:y=if(gt(t\,1.29)\,48.6-151.75127511093854*(t-1.29)\,48.6)[mv1];[1][mv1]overlay=y=0[m1] -preset ultrafast -map [m1] -t 544.3800000000026 /Users/joey/Library/Application Support/Electron/tmp/output.mp4


    


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