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Médias (1)
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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (64)
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...) -
Personnaliser les catégories
21 juin 2013, parFormulaire de création d’une catégorie
Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
On peut modifier ce formulaire dans la partie :
Administration > Configuration des masques de formulaire.
Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)
Sur d’autres sites (8967)
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Hot to copy frame data from FFmpegSource2 (FFMS2) FFMS_Frame struct to OpenCV Mat ?
4 octobre 2013, par YashilI'm trying to read video file using FFmpegSource2 (FFMS2) and then process frames using OpenCV. What is the proper and efficient way to copy frame data from a FFMS_Frame struct returned by FFMS_GetFrame function to an OpenCV Mat ?
Thank you very much in advance.
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FFmpeg : How to change tempo dynamically
25 octobre 2018, par AnkushI am working on an android project in which I need to change the tempo of an mp3 (50 seconds audio) file dynamically as shown :
Time | Tempo
----------------------------------------------
0-4 | 1.0
|
4-8 | change form 1.0 to 0.5
|
8-12 | 0.5
|
12-16 | change from 0.5 to 1
|
16-20 | 1
|
20-24 | change from 1 to 1.5
|
24-28 | 1.5
|
28-32 | change from 1.5 to 1
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32-36 | 1
|
36-40 | change from 1 to 1.5
|
40-44 | 1.5
|
44-48 | change from 1.5 to 1
|
48-50 | 1I had searched and found that I can use atempo for this. But it changes the whole audio tempo. I think that I can split the audio and apply the effect but it also not work for this type of dynamic task. Please help me to find the solution. Thank you in advance :)
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Scaling seems to crop edges of video
7 septembre 2020, par JaoI'm doing some automation with FFmpeg and I need to be able to scale up and down videos. So I tried using the scale filter. No issue when I'm scaling up but when I'm scaling down I'm losing a few pixels from the bottom of the video and I must keep everything.


Here is an example :


$ ffmpeg.exe -i video.avi -vf scale=1536:644 video_resized.avi



Here, video.avi is 2048x858.
I tried a lot of parameters, algorithms and flags but nothing seems to "fix" it. Maybe it is normal and I'm not understanding correctly how scaling works but I need to resize without loss of edges.
Thanks in advance