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  • Diogene : création de masques spécifiques de formulaires d’édition de contenus

    26 octobre 2010, par

    Diogene est un des plugins ? SPIP activé par défaut (extension) lors de l’initialisation de MediaSPIP.
    A quoi sert ce plugin
    Création de masques de formulaires
    Le plugin Diogène permet de créer des masques de formulaires spécifiques par secteur sur les trois objets spécifiques SPIP que sont : les articles ; les rubriques ; les sites
    Il permet ainsi de définir en fonction d’un secteur particulier, un masque de formulaire par objet, ajoutant ou enlevant ainsi des champs afin de rendre le formulaire (...)

  • Gestion des droits de création et d’édition des objets

    8 février 2011, par

    Par défaut, beaucoup de fonctionnalités sont limitées aux administrateurs mais restent configurables indépendamment pour modifier leur statut minimal d’utilisation notamment : la rédaction de contenus sur le site modifiables dans la gestion des templates de formulaires ; l’ajout de notes aux articles ; l’ajout de légendes et d’annotations sur les images ;

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    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 (9152)

  • Estimate time of transcoding video FFMPEG [on hold]

    9 mars 2019, par Anh Vo Nguyen Nhat

    Currently, I want to assign a video transcoding task to a computer in my distributed network. The computer are heterogeneous, so I have to check whether that computing can handle the task fast enough (during a specified deadline). My approach for this is to run many experiments and then based on the statistics I will try to estimate the time when running another task.

    I am trying to predict beforehand the time it takes when transcoding a video (e.g. transcoding 1920x1080 H264 video to 1280x720 VP9) using FFMPEG tool.
    I have used the following features to build a simple neural network to predict the time :
    - Video Resolution (Input + Output)
    - Video Duration
    - Video Codec (Input + Output)
    - Video Bitrate
    - Video Framerate
    - Number of B, I, P frames

    However, the result is not really promising. I want to ask if there is any other way to estimate/predict the time it takes when transcoding a video ? Are there any other features beside the listed that affects the transcoding time ?

  • ffmpeg cut the video and get accurate begining time of the result

    1er décembre 2022, par Pavlo Sharhan

    I do the cut via :

    


    ffmpeg -i  long_clip.mp4 -ss 00:00:10.0 -c copy -t 00:00:04.0 short_clip.mp4


    


    I need to know the precise time where did the ffmpeg do the cut (Time of the closest keyframe before the 00:00:10.0)

    


    Currently, I'm using the following ffprobe command to list all the keyframes and select the closest before 00:00:10.0

    


    ffprobe -show_frames -skip_frame nokey long_clip.mp4


    


    It works extremely slow (I run It on Jetson Nano, and It is a few minutes to list the keyframes for 30 sec video, although the cutting is done in 0.2seconds)

    


    I hope there is the much faster way to know the time of the keyframe where ffmpeg does the cut, at least because ffmpeg seeks to this keyframe and cuts the video less than in half a second.

    


    So in other words the question is : How to get the time of the keyframe where ffmpeg does the cut not listing all the keyframes ?

    


  • FFMPEG Manipulate the start time [duplicate]

    9 octobre 2018, par Sean

    This question already has an answer here :

    I have an ISMV file (fragmented MP4) which has a set start time (an epoch time) which allows other metadata to synchronise with it.

    if I ffprobe it I get the following ;

    Duration: 00:44:00.28, start: 1537792418.761560, bitrate: 3970 kb/s

    Is it possible to manipulate the start time ?
    I have had to re-encode the file, and it’s start time is now zero.
    I have checked many options, but am really unclear what is possible.

    From what I see I should be looking at a filter with the pts options. But I’m unclear what it should actually be after many hours of searching and fiddling ?

    Cheers in advance.

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