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Autres articles (18)
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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 (...) -
Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...) -
Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)
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nutenc/write_index : warn if 2 consecutive keyframes have the same PTS and discard...
22 décembre 2013, par Michael Niedermayernutenc/write_index : warn if 2 consecutive keyframes have the same PTS and discard the 2nd
This fixes an assertion failure and regression and restores previous behaviour
Fixes Ticket3197An alternative would be to fail hard in this case and refuse to mux such data.
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
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Simultaneous Recording and Real-Time Display Using ffmpeg with DeckLink
9 décembre 2023, par ark1974I am currently working with a DeckLink Duo card, specifically utilizing port 2. My objective is to use FFmpeg to ingest RAW HD SDI, save it as an MP4 file, and concurrently display the incoming SDI video on the computer screen in real-time.


I have experimented with various FFmpeg command lines, combining decklink and sdl options, to achieve this dual functionality :


ffmpeg -f decklink -i 'DeckLink Duo@2' -c:v libx264 -preset ultrafast -tune zerolatency -f sdl "My Screen"



However, I am encountering challenges in achieving both recording and real-time display simultaneously.


I would appreciate any insights, suggestions, or alternative approaches to enable the concurrent recording and display of SDI video using DeckLink with ffmpeg.


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Burn filenames of single images into FFmpeg output video [on hold]
13 février 2014, par JpsyI am using FFmpeg to read in a series of single images and output them as a video.
The result is a timelapse of screenshots of a website in 1 minute intervals.Now I would like to burn the original capture time of each image into the resulting video using the drawtext command. The capture time is available in the filename of each image. But I am failing to find some option for drawtext to access the filenames of the input images.
An alternative would be to access the creation date of each image from within drawtext (I cannot find a way to do this either). But I would definitely prefer to access the filename, as this would give me more options to format the text.
Is there a way to do this ?
It would be great if any proposed solution would work on Windows too.