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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (98)
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Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...) -
Que fait exactement ce script ?
18 janvier 2011, parCe script est écrit en bash. Il est donc facilement utilisable sur n’importe quel serveur.
Il n’est compatible qu’avec une liste de distributions précises (voir Liste des distributions compatibles).
Installation de dépendances de MediaSPIP
Son rôle principal est d’installer l’ensemble des dépendances logicielles nécessaires coté serveur à savoir :
Les outils de base pour pouvoir installer le reste des dépendances Les outils de développements : build-essential (via APT depuis les dépôts officiels) ; (...) -
XMP PHP
13 mai 2011, parDixit Wikipedia, XMP signifie :
Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)
Sur d’autres sites (9989)
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How to split video by duration like 10sec in FFmpeg ? [duplicate]
5 janvier 2019, par JabsThis question already has an answer here :
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How to split a video using FFMPEG so that each chunk starts with a key frame ?
6 answers
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record desktop save every 30 minutes
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Export each minute of MP3 into separate WAV
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How to get equally spaced audio chunks from .wav file using ffmpeg ?
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How to segment a video and then concatenate back into original one with ffmpeg
1 answer
I am new in ffmpeg ! i want to split videos which duration like 3 mins. or more into 10 sec.using ffmpeg ?
please help me how to resolve it. -
How to split a video using FFMPEG so that each chunk starts with a key frame ?
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Shortest not working with concat from split video and extra audio track
27 septembre 2022, par cakedevI'm trying to create a video with some speed variations from the source and concat them together at the end while also including an audio track to the result but, I want the audio file to match the length of the concat video, and the result I'm getting is the audio trims at the length of the source video duration, which is the shortest one.
Is there a way to use
-shortest
so it will only consider the mapped values at the end (concat video and external audio) ?

This is the command I have right now :


ffmpeg.exe -i source.mp4 -i sample.aac -y -filter_complex "[0]split=3[a][b][c];[b]setpts=2.0*PTS,reverse[r];[c]setpts=0.5*PTS[f];[a][r][f]concat=n=3[s]" -shortest -map '[s]' -map 1:a:0 out.mp4



Any help would be really appreciated.


Thanks !


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ffmpeg : Split MP3 in 1 second chunks fast ?
30 décembre 2019, par NikoI want to split mp3 into one second chunks fast. I have the mp3 already in memory (in crystal lang) and want to process it further (so I need it in memory after splitting). I got two possiblities working :
- Saving the file to ram disk, calling
ffmpeg -segment
on it, reading all the segement files into memory. - Piping the file into
ffprobe --show_frames
and parsing thepkt_pos
fields from the result.
Both are slow about one second due to unnescessary overhead. Writing to disk and reading hundrets of files in the first case, outputting a lot of unneeded information about a lot of unneeded frames in the second.
I see two possibilities to improve :
- a custom filter for
ffmpeg
that outputs the segements with a separator to stdout. - a custom filter for
ffprobe
similar to--show_frames
but with aframestep
parameter (the existing framestep filter only seems to work with video files) which outputs only the byte offset of the frames.
Perhaps I’m missing possibilites with the existing filters. Perhaps there is a tool better fitted for my needs than ffmpeg. I’d be happy for any hints.
- Saving the file to ram disk, calling