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Médias (1)
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Richard Stallman et le logiciel libre
19 octobre 2011, par
Mis à jour : Mai 2013
Langue : français
Type : Texte
Autres articles (84)
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Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
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 (4910)
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ffmpeg decode and encode for an extension typo
15 novembre 2022, par William WongI am trying to download some videos from an m3u8 file online. However, the
.ts
files were (maybe intentionally) changed to.png
files. I have tried downloading the.png
files and changing them to.ts
manually and it plays well.

However, the ffmpeg file seems cannot parse the
.png
files. I tried to force the output format with-f
, but it does not work.

May I know if that is possible to still use the ffmpeg for downloading and converting the stream to mp4 ? I am also open to other methods or simple fixes with bash/ python.


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How to calulate PTS and DTS ? C++
27 janvier 2024, par kodomaI have a mkv file where I want to extract the video stream. While extracting, I got the "... non monotonically increasing dts to muxer ..." Warning/Error. I have tried multiple solutions that I found online, but I could never get the timing to be right.


This is the beginning of the video stream :


DTS: 0 PTS: 0 Duration: 41 
DTS: 375 PTS: 375 Duration: 41 
DTS: 209 PTS: 209 Duration: 41 
DTS: 42 PTS: 42 Duration: 41 
DTS: 83 PTS: 83 Duration: 41 
DTS: 125 PTS: 125 Duration: 41 



I also extracted the stream via the FFmpeg executable, and the extracted video file has the same DTS and PTS as the source.


So how do I calculate the DTS and PTS correctly ? If I don't change the timings, the video is the same length, but it is total garbage.


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Is there any way to concatinate multiple video and audio streams with offset ?
17 avril 2019, par Demchenko OlegI am sory for my english, it is not my mother language. My issue related to ffmpeg concatenation of audio and video streams. There are multiple audio and video streams which were recorded by online chat. All of them have start and end time points. If user turned off a micro or camera then audio and video streams wouldn’t be matched. How can I align all streams in one time series ? Can I add some white noise to separate the two videos ? Similar with audio.