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  • MediaSPIP Core : La Configuration

    9 November 2010, by

    MediaSPIP Core fournit par défaut trois pages différentes de configuration (ces pages utilisent le plugin de configuration CFG pour fonctionner) : une page spécifique à la configuration générale du squelettes; une page spécifique à la configuration de la page d’accueil du site; une page spécifique à la configuration des secteurs;
    Il fournit également une page supplémentaire qui n’apparait que lorsque certains plugins sont activés permettant de contrôler l’affichage et les fonctionnalités spécifiques de (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 September 2013, by

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo; l’ajout d’une bannière l’ajout d’une image de fond;

  • Librairies et logiciels spécifiques aux médias

    10 December 2010, by

    Pour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
    Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel; FFMpeg avec le maximum de décodeurs et (...)

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  • Segmenting .flac files with ffmpeg truncates audio but not file length

    5 April 2022, by Yan White

    I am trying to get Twitter spaces audio (.ts) files into a format I can easily edit, on OSX.

    


    So far I was able to convert the files in bulk to .flac with this:

    


    for i in *.ts;
do name=`echo "$i" | cut -d'.' -f1`
echo "$name"
ffmpeg -i "$i" -sample_fmt s16 -ar 41000 "${name}.flac"
done


    


    That worked, and reduced the file sizes somewhat, but..
Because most of the files are around 7 hours long, my editor of choice cannot process that much audio in one file.

    


    So I looked around and was able to find this command to segment the files into 3hr long sections.

    


    ffmpeg -i space-1OdKrBealBqKX_0.flac -map 0 -f segment -segment_time 10800 -c copy space-1OdKrBealBqKX_0__%03d.flac


    


    This works, but each file contains as much empty / silent space at the end as the orginal file. That's going to be a problem for sharing with a team that will help edit these files, as each file has the original file's length and file size. There are a lot of files.
The audio segments and naming did work though.

    


    How to truncate the actual length of the file to the audio segment?

    


    Caveat: I am no expert on any of these matters, I just managed to google and get this far, so if someone knows and wants to provide working code that would be very much appreciated!

    


  • How to extract tiles from ffmpeg thumbnails by cutting them to the length of the video

    22 March 2021, by JeeNi

    I have searched in many ways to solve this problem. But I can't find an answer, so I leave a question.

    


    ffmpeg -i thumb_test.mp4 -filter_complex "select='isnan(prev_selected_t)+gte(t-prev_selected_t\,5)',scale=120:-1,tile=layout=60x60" -vframes 1 -q:v 2 thumb.jpg


    


    The result of the command I used is as follows.

    


    enter image description here

    


    The remaining space remains black, making the file size larger.
To solve this method, I would like to specify the tile size as much as the video length when extracting thumbnails.
Please let me know if there is a solution.

    


    Thank you.

    


  • avcodec/hevc: Print an error if luma_log2_weight_denom is out of range

    15 December 2014, by Michael Niedermayer
    avcodec/hevc: Print an error if luma_log2_weight_denom is out of range

    Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/hevc.c

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