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Autres articles (14)
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Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
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 (...)
Sur d’autres sites (3437)
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How to set background to subtitle in ffmpeg ?
13 décembre 2020, par supermarioIt is described here how ot burn a srt file into a video. 
However, I want to put a semi-transparent background to the subtitles so that the texts can be read more easily. How can I do that ?


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Using ffmpeg to increase framerate without changing duration [closed]
11 février 2024, par sarunwI want to increase the video frame rate with FFmpeg.


I found from this website, https://trac.ffmpeg.org/wiki/ChangingFrameRate, that I can use
-r
orfps filter
.

The doc said the output duration of the video would stay the same, but that is not the case in my test.


What I tried so far.


I got a video with a duration of 19 seconds at 1.45 fps (I took this number from the QuickTime app)


After using these commands, fps become 30, but the duration becomes 1 second.


ffmpeg -i <input /> -filter:v fps=fps=30 <output>
ffmpeg -i <input /> -filter:v fps=30 <output>
ffmpeg -y -r 30 -i <input /> <output>
</output></output></output>


Here is the file https://www.dropbox.com/scl/fi/nl6yabgl9yzikx12mkvnu/sample2.mp4?rlkey=wk4fsu2vvkcui31cneq8vruik&e=1&dl=0


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ffmpeg looping short videos inside collage of video
16 avril 2018, par Yogesh KaleSee reference link :-
https://trac.ffmpeg.org/wiki/Create%20a%20mosaic%20out%20of%20several%20input%20videos
i am making video collage using ffmpeg. i am able to make a collage of videos.So my question is : looping short videos inside collage of video.
currently short video gets finished and remains as it is till large length video ends.i want looping short video till large video ends
i am using overlay of ffmpeg for making collage