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Médias (1)
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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (57)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne 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 (...) -
Les vidéos
21 avril 2011, parComme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...) -
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 (...)
Sur d’autres sites (8756)
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When concatenating videos With FFMPEG, the audio becomes out of sync (python)
22 juin 2022, par Funny FightsSo I have a txt file like this with a path to all my videos :


file 'video1.mp4'


file 'video2.mp4'


file 'video3.mp4'


and I want to combine them into one big video :


I am using in python :


ffmpeg -f concat -safe 0 -re -i txtfile.txt -c copy concatenatedvideo.mp4


But the concatenatedvideo.mp4 ends up having the video and audio become out of sync.


How do I make it so the videos simply combine and keep their audio as it was, instead of becoming out of sync ?


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Storing large videos on the Server
14 novembre 2019, par civ15In my application the client is uploading relatively large videos, average is 500 MB. I have to encode the video in the backend to reduce the size, and I’m trying to use ffmpeg for that. However, ffmpeg needs around 10 minutes for each video, and I should be able to serve the video to the client instantly, or, at least in a few seconds after the upload is finished.
What would be the best practice in this context ?
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How to make fade in/out effect between concatenate videos using ffmpeg
7 février 2018, par no nameI have three videos which divide into three parts on is the start then main video then end of the video in which I concatenate them together I want to add fade in/out effect at the end of the first video and at the start of the third video so they are separated nicely to the viewer.
i used this code to concatenate the video together by adding videos name to the text fileffmpeg -f concat -i ffmpeg-sound.txt -c copy final_output.mp4
now what command should i pass so i can add this effect as iam not good at ffmgep. or if there is any other things to follow.
Thanks in advance