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Autres articles (105)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP 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 (...) -
Soumettre bugs et patchs
10 avril 2011Un logiciel n’est malheureusement jamais parfait...
Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
Si vous pensez avoir résolu vous même le bug (...) -
Formulaire personnalisable
21 juin 2013, parCette page présente les champs disponibles dans le formulaire de publication d’un média et il indique les différents champs qu’on peut ajouter. Formulaire de création d’un Media
Dans le cas d’un document de type média, les champs proposés par défaut sont : Texte Activer/Désactiver le forum ( on peut désactiver l’invite au commentaire pour chaque article ) Licence Ajout/suppression d’auteurs Tags
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire. (...)
Sur d’autres sites (10330)
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adding audio files to exist video with ffmpeg make the video currapted
21 janvier 2018, par YanshofI have video file (.avi) and audio files (.wav) that i want to marge to ine avi file.
The wav files are marge with some delay ( work fine )
But in some cases the audio files are longer then the video stream and i getting currapted video file that contain only the audio - and i can’t see the video.
When i try to separate the audio and the video from the currapted video output i got the good video file and good audio file that i can use ( see the video and listen to the audio )
I don’t know if its possible to keep the audio and video in case the audio is longer on the delay that the video file.
Beside this, When i adding the audio files ... the video is less time .. i mean that if the video without the audio is 14 minus => after the audio is 13 minus
( when its not currapted )Here how i marge the files ( audio and the video )
ffmpeg.exe -report -i "..\\merged.avi" -i "Storage\\1.wav" -i
"Storage\\2.wav" -i "Storage\\3.wav" -filter_complex "adelay=30000|30000"
"adelay=91000|91000" "adelay=151000|151000" -c:v copy "Storage\\ALL.AVI" -
Resizing video with FFmpeg to double size, but maintains original rectangle video on the top left
1er juin 2022, par MauroI have a video with 320 x 240 pixels.


I want to convert it to double size : 640 x 480 pixels.


But I don't want the video upscaled.


I mean : The final file must be a 640 x 480 video file, with the "original video" inside a 320 x 240 rectangle on top left, and the rest of screen filled with black background.


How can I do it with ffmpeg ?


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Best video format/codec/technique to send small video with syncronization
22 janvier 2016, par EpsiloncoolI have a strange task to solve. We have a small-sized video window (like 300x200 pixels, 256-colors palette) and 44kHz 2ch sound playing on server. We need to send this stream video to some clients (1,2.. up to 10). Strict requirements is syncronization (we should have video syncronized as precise as 20 ms on all clients) and loss-less (preferrably no losses at all, but it is discussable).
Please recommend any good video format/codec/linux software to install on server to make this thing possible. Thanks !