Recherche avancée

Médias (91)

Autres articles (81)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

Sur d’autres sites (11315)

  • FFmpeg uses too much memory when repeating split, select, overlay

    13 novembre 2020, par finefoot

    I'm running

    


    ffmpeg -i input.mp4 -filter_complex_script script.txt output.mp4


    


    with the following minimal example script :

    


    split[tmp],
select='between(t,1,2)',
select='between(n,0,1)',
[tmp]overlay=enable='between(t,1,2)':eof_action=repeat,
split[tmp],
select='between(t,3,4)',
select='between(n,0,1)',
[tmp]overlay=enable='between(t,3,4)':eof_action=repeat


    


    What I want to do is to take 1 frame at a certain position and repeat it for a certain duration, basically "pausing" the video, while overwriting to keep the same output length. In the example, I'm doing this twice : I'm using split[tmp] to get a second input stream to work on, select the time at position 00:01 with select='between(t,1,2)', select the first frame from that position with select='between(n,0,1)' and finally overlay that frame over the input. This repeats for a second time at position 00:03. I have tested this and it does exactly what I'm looking for.

    


    However, in my real script, I'm repeating this about 1000 times for different positions in the stream (and for shorter durations than 1 second) which results in running out of memory. What am I doing wrong ? What can I do to optimize ?

    


  • How to split a video using black frames as markers in ffmpeg ?

    13 décembre 2019, par gramm

    I want to split a video so that when there are black frames it creates a new file.
    Is there a way to do this in one command in ffmpeg ?
    I can for the moment detect black frames using :

    ffmpeg -i myfile -vf blackdetect=d=2:pix_th=0.00 -f rawvideo -y /NUL

  • How to split multiple audio files by 10 seconds each on OSX ?

    23 juin 2020, par LA_

    Let's say I have 100 audio files and I would like to split each file into several files with 10 seconds length.

    


    I think the following should work :

    


    for i in *.ogg; do
  echo -n $i ...
  ffmpeg -i $i.ogg -ss 0  -t 10 $i_1.ogg
  ffmpeg -i $i.ogg -ss 10 -t 10 $i_2.ogg
  ffmpeg -i $i.ogg -ss 20 -t 10 $i_3.ogg
done


    


    But I don't understand how many times ffmpeg commands should be repeated.

    


Navigation