Recherche avancée

Médias (1)

Mot : - Tags -/punk

Autres articles (97)

  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

Sur d’autres sites (11097)

  • How to crop videos with black frames on top and bottom

    14 février 2019, par jennie

    I want to crop videos with black frames on the bottom and top follow the scale as described in the video : https://youtu.be/QIXgvGF59CM

    Can you help me write code using ffmpeg ?

  • ffmpeg compressing black and white (monochrome, b/w, grayscale) video

    15 septembre 2016, par dtmp

    I have a black and white video I would like to compress into the smallest file size. Are there any filters or switches I should use for b/w video as opposed to color ? Will it affect the output or does ffmpeg treat color video and b/w video the same ?

  • Concatenate multiple videos with a black screen loop into one video

    23 février 2020, par Marcel

    I am using ffmpeg to join a bunch of videos together.
    I am using the classic join ffmpeg code :

    ffmpeg -f concat -i joinlist.txt -c copy joinedfile.mp4

    but the problem is that the videos are of different formats, encodings, but the same size : all 640x480. I want to join them all and put a black screen video with no sound every other video :

    video1 + black_screen_video + video2 + black_screen_video + video3 ...

    I generated a black screen video of 2 seconds duration using :

    ffmpeg -f lavfi -i color=c=black:s=640x480:d=2 black_screen_video.mp4

    so all of the videos are of the same size : 640x480, and 25 fps but different codecs. The videos have sound, except for the black screen video.
    I can’t do anything manual, because the number of videos are around several hundred. So it has got to be an automatic way to do all this.

    When I joined them together using the above code, the resulting video does not play correctly at all.

    I know that I have to re-encode them, but how to do this to all these videos at once, with one line of code ?

    Update :
    I am already using with success this code to join them together, but only three, if I have more than one hundred, it is time consuming to write down one by one :

    ffmpeg -i vid1.avi -i vid2.avi -i vid3.avi -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] concat=n=3:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output.mp4

    but this is joining only the videos, not looping the black screen video. When I do with black screen, ffmpeg gives me stream matching errors.

    update :

    here is the console image :
    enter image description here

    2nd update :

    a very long list of errors in red, of which a screenshot here :
    enter image description here

Navigation