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  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • La sauvegarde automatique de canaux SPIP

    1er avril 2010, par

    Dans le cadre de la mise en place d’une plateforme ouverte, il est important pour les hébergeurs de pouvoir disposer de sauvegardes assez régulières pour parer à tout problème éventuel.
    Pour réaliser cette tâche on se base sur deux plugins SPIP : Saveauto qui permet une sauvegarde régulière de la base de donnée sous la forme d’un dump mysql (utilisable dans phpmyadmin) mes_fichiers_2 qui permet de réaliser une archive au format zip des données importantes du site (les documents, les éléments (...)

  • 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 (...)

Sur d’autres sites (9960)

  • Force x264 to only use long term reference frames

    12 décembre 2019, par cloudraven

    I want to generate a h.264 stream in which P-frames are using references exclusively using long-term references identifiers rather than defaulting to a short-term reference given by the previous frame.

    At this point this is an academic experiment to understand the encoding behavior of long-term references and the consequences of forcing frames to refer to a specific frame rather than several.

    It would be great if I could do this from the command line, but if not possible I am open to modifying x264 for this purpose.

    Could anyone point me to where in the source code it is determined :

    • the reference frame / macroblock / partition for the current macroblock
    • changes made to the short term, long term reference frame list
    • whether to use a short term reference frame or a long term reference frame.

    Using another encoder like nvenc is also acceptable.

  • Force x264 to only use long term reference frames

    12 décembre 2019, par cloudraven

    I want to generate a h.264 stream in which P-frames are using references exclusively using long-term references identifiers rather than defaulting to a short-term reference given by the previous frame.

    At this point this is an academic experiment to understand the encoding behavior of long-term references and the consequences of forcing frames to refer to a specific frame rather than several.

    It would be great if I could do this from the command line, but if not possible I am open to modifying x264 for this purpose.

    Could anyone point me to where in the source code it is determined :

    • the reference frame / macroblock / partition for the current macroblock
    • changes made to the short term, long term reference frame list
    • whether to use a short term reference frame or a long term reference frame.

    Using another encoder like nvenc is also acceptable.

  • ffmpeg works as a root but not as a user

    19 mars 2015, par ayan

    As root user I can run any ffmpeg command fine and it will work but trying to run it as the user ’adinvideo’ like so, I get :

    -bash: ffmpeg: command not found

    when I check the permissions I found this

    root@ado.XXXX.com [~]# ls -l ffmpeg
    
total 1516
    

    
-rw-r--r--   1 root root 148691 Mar 19 08:14 ffmpeg.c
    
-rw-r--r--   1 root root  16152 Mar 19 08:14 ffmpeg.h
    
-rw-r--r--   1 root root 133904 Mar 19 08:14 ffplay.c
    
-rw-r--r--   1 root root 117447 Mar 19 08:14 ffprobe.c
    
-rw-r--r--   1 root root 124672 Mar 19 08:14 ffserver.c
    
    drwxr-xr-x   5 root root   4096 Mar 19 08:14 tests/
    
drwxr-xr-x   2 root root   4096 Mar 19 08:48 tools/
    
-rwxr-xr-x   1 root root   1866 Mar 19 08:14 version.sh*

    Advance thanks for any help

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