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Autres articles (23)

  • Utilisation et configuration du script

    19 janvier 2011, par

    Informations spécifiques à la distribution Debian
    Si vous utilisez cette distribution, vous devrez activer les dépôts "debian-multimedia" comme expliqué ici :
    Depuis la version 0.3.1 du script, le dépôt peut être automatiquement activé à la suite d’une question.
    Récupération du script
    Le script d’installation peut être récupéré de deux manières différentes.
    Via svn en utilisant la commande pour récupérer le code source à jour :
    svn co (...)

  • Ajouter notes et légendes aux images

    7 février 2011, par

    Pour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
    Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
    Modification lors de l’ajout d’un média
    Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (4803)

  • Where to place the fontfile for the FFmpeg drawtext-Filter ?

    18 juin 2018, par jpGerhard

    I’m using the precompiled FFmpeg-Android by Bravobit (via gradle : implementation 'nl.bravobit:android-ffmpeg:1.1.5' ; based on WritingMind’s) with the intention of drawing the current timestamp/location onto a .mp4 file. I am completely new to FFmpeg and have started with Android Studio a few months ago.

    Information :

    • IDE : Android Studio
    • OS : OSX 10.13.5

    My problem :

    I don’t know whether the fontfile needs to be in the Application path on my Phone, in the Android Studio directory or just on a location on my MacBook (so it gets compiled when running the application).

    Basic FFmpeg commands (-version, ...) are working, but I can’t seem to figure out where I have to place my fontfile.

    My current command is as follows :

    -i /path/to/video.mp4 -vf drawtext=fontfile=/users/shared/fonts/arial.ttf:text='Hello World' /path/to/output.mp4

    I’ve tried a lot of variations and always received to following errors :

    Fontconfig error : Cannot load default config file
    [Parsed_drawtext_0 @ 0xecbfd420] impossible to init fontconfig
    [AVFilterGraph @ 0xec9cc140] Error initializing filter ’drawtext’ with args ’fontfile=/users/shared/fonts/arial.ttf:text=Hello World’
    Error reinitializing filters !
    Failed to inject frame into filter network : Unknown error occurred
    Error while processing the decoded data for stream #0:0
    Conversion failed !

    Does anyone have a suggestion on how to get this to work ?

  • Where to place the fontfile for the FFmpeg Android drawtext-Filter ?

    13 juin 2018, par jpGerhard

    I’m using the precompiled FFmpeg-Android by Bravobit (via gradle : implementation 'nl.bravobit:android-ffmpeg:1.1.5' ; based on WritingMind’s) with the intention of drawing the current timestamp/location onto a .mp4 file. I am completely new to FFmpeg and have started with Android Studio a few months ago.

    Information :

    • IDE : Android Studio
    • OS : OSX 10.13.5

    My problem :

    I don’t know whether the fontfile needs to be in the Application path on my Phone, in the Android Studio directory or just on a location on my MacBook (so it gets compiled when running the application).

    Basic FFmpeg commands (-version, ...) are working, but I can’t seem to figure out where I have to place my fontfile.

    My current command is as follows :

    -i /path/to/video.mp4 -vf drawtext=fontfile=/users/shared/fonts/arial.ttf :text='Hello World' /path/to/output.mp4

    I’ve tried a lot of variations and always received to following errors :

    Fontconfig error : Cannot load default config file
    [Parsed_drawtext_0 @ 0xecbfd420] impossible to init fontconfig
    [AVFilterGraph @ 0xec9cc140] Error initializing filter ’drawtext’ with args ’fontfile=/users/shared/fonts/arial.ttf:text=Hello World’
    Error reinitializing filters !
    Failed to inject frame into filter network : Unknown error occurred
    Error while processing the decoded data for stream #0:0
    Conversion failed !

    Does anyone have a suggestion on how to get this to work ?

  • FFmpeg vidstab generates jerky wiggling video

    27 mars 2022, par praet0ri4n

    I run Kdenlive 21.12.3 on Ubuntu 20.04.
Recently I stared editing footage from my Nikon D3100 DSLR. Source videos are 1920:1080 24fps in MOV format (camera set to PAL system).

    


    After trying to stabilize a video where I am walking I noticed that the result is kind of stabilized but the image is distorted and contains some strange wiggling effect. Changing the stabilization settings doesn't have any impact on this effect. I haven't seen this before. Previously I stabilized footage from other cameras without problems. This is the first time I use that DSLR.

    


    To me it looks like stabilization is doing some strange interpolation and it is stretching and skewing the image or pixel aspect ratio.
For convenience I tried the vidstab filter with ffmpeg, played around with the interpol option too, but the result ist exactly the same.

    


    Here the source MOV and stabilized mp4 file for comparison
https://nc.p1p0.eu/index.php/s/tTQgPj9rDbmReYn

    


    Thank you !

    


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