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Autres articles (59)
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Activation de l’inscription des visiteurs
12 avril 2011, parIl est également possible d’activer l’inscription des visiteurs ce qui permettra à tout un chacun d’ouvrir soit même un compte sur le canal en question dans le cadre de projets ouverts par exemple.
Pour ce faire, il suffit d’aller dans l’espace de configuration du site en choisissant le sous menus "Gestion des utilisateurs". Le premier formulaire visible correspond à cette fonctionnalité.
Par défaut, MediaSPIP a créé lors de son initialisation un élément de menu dans le menu du haut de la page menant (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...)
Sur d’autres sites (11906)
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ffmpeg command to insert the blackframes in a video, if the video has the gaps inside of it ?
27 août 2020, par geo-freakI have a 10 min video file(.ts file), it has the gaps(empty video) from 4th min to 7th min. I want to insert the blackframes from start of the gaps to end of the gap. How can I achieve it ?


Thanks in advance.


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FireFox Video throws warning but video actually works ?
21 février 2021, par SdBill- 

- OS : Ubuntu 18.04
- FF : 85.0.1
- Error/warning : Cannot play media. No decoders for requested formats : video/mp4, video/mp4








Same error for video/ogg


Here are my questions : 1) The video still plays fine once loaded, and there is no error in Chrome or Chromium. Why does the video work fine after loading but throws the error on load ? 2) Is there anything that can be done without re-encoding over 2 gigs of video ?


Context : this is an old no-profit site that used Flash for video and we really don't want to throw a lot of time at, but there are gigs of videos. I converted all .flv files and .mpg files to .mp4 using the most simple of ffmpeg commands, examples :


ffmpeg -i video-source.flv video-source.mp4
ffmpeg -i video-source.mpg video-source.mp4
ffmpeg -i video-source.mpg video-source.ogg


As I watched the ffmpeg output, it looked to me like the codec was H264 (at least, I think that is what I am seeing, not a video expert.)


Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> theora (libtheora))
 Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))


Server response in a direct request to the mp4 files is


Content-Type
 video/mp4


I have seen the documentation and posts on fragmented mp4 and if re-encoding is the only option, we're probably going to abandon as it does play once loaded.


Code is simplistic, using an html5 doctype :


<video width="320" height="240" controls="controls">
 <source src="/images/video/mp4/video-source.mp4" type="video/mp4">
 <source src="/images/video/ogg/video-source.ogg" type="video/ogg">
 Your browser does not support the video tag.
 </source></source></video>


Is the only option here to pander to FireFox and re-encode everything since as mentioned, it plays fine once loaded and throws no error in Chrome ?


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What options are available for speeding up video load times on a webpage when video is hosted on IPFS
10 août 2022, par Ryan DI have a site that pulls videos hosted on IPFS (Interplanetary File System), most of the videos load and play fine but if a user doesn't have a strong internet connection or if a larger video, it constantly buffer's and play's choppy.


Since the video isn't hosted on my server i'm not sure what options I have to help speed the load times up. The original video is uploaded to my site though and I pass it to IPFS to upload directly. I don't currently download it to my server first to speed up the uploading process, or so the user doesn't need to wait for a double upload.


I know youTube has a compression algorithm and does something with chopping up the video into chunks or something but i'm not sure exactly how that works. Im not very experienced with video codec and encoding. Ive heard good things about FFmpeg but not sure if that would help my current situation.


Any ideas or tools I should look into that may help me out would be appreciated. For larger videos I could download to my server first if theres a compression mechanism or something I could apply first to help the overall load times of the site although not ideal for the user uploading.


Im using videoJS for my video player with preload set to auto if that helps at all.


<video width="320" height="240" controls="controls" class="video-js video" poster="{Image URL}">
 <source src="{IPFS URL}" type="video/mp4">
</source></video>


Options im currently using


Load the video after the DOM has loaded to not slow down page loads


Preload the video





Although I don't think that does much.


Other than that I don't know what else I can do. Im good with PHP and or Javascript to handle this task if theres something I should look into.


Thanks !


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