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Autres articles (61)

Gestion générale des documents

13 mai 2011, par kent1

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Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
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2 mai 2011, par kent1

Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.
Submit bugs and patches

13 avril 2011

Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
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1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | ... | 21

Sur d’autres sites (6643)

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&#xA;ffmpeg -i video-source.mpg video-source.mp4&#xA;ffmpeg -i video-source.mpg video-source.ogg&#xA;
```



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:&#xA;  Stream #0:0 -> #0:0 (h264 (native) -> theora (libtheora))&#xA;  Stream #0:1 -> #0:1 (aac (native) -> vorbis (libvorbis))&#xA;
```



Server response in a direct request to the mp4 files is



```
Content-Type&#xA;    video/mp4&#xA;
```



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">&#xA;   <source src="/images/video/mp4/video-source.mp4" type="video/mp4">&#xA;   <source src="/images/video/ogg/video-source.ogg" type="video/ogg">&#xA;   Your browser does not support the video tag.&#xA;  </source></source></video>&#xA;
```



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 ?



Slowing or speeding up video or altering frames in video to set video length

18 novembre 2022, par user19019404

Using ffmpeg is there a way to change the length of the video without losing frames ?
That is, I want all my videos to be 5 minutes long. Due to CPU processing and other issues (external videos received) some videos are between 2 and 4 minutes minutes, some videos are between 6 and 8 minutes. I don't seem to have lost any frames and they are all intact, just some videos play a bit slower than real seconds and some play faster.




I want to change the speed of the video so that they all end up being exactly 5 minutes. So if I go 2 minutes 30 into the video we are always at the halfway point.




Is this something that can be achieved with ffmpeg ?




Thanks



FFMPEG+video+video.js dont show up the video

18 avril 2013, par user1843970

I have a video content type where I want to show the video to the user. I downloaded video module and video.js for this purpose. I have successfully installed ffmpeg transcoder in apache serv

Now I go to admin/config/media/video. Withing players tab I select HTML5 player for mp4 video and video.js to run HTML5 video like below :-

Now I go to Video Content Type and add Video field with Video Upload as its type and save it.The video is successfully converted but after clicking on play button nothing happens.

Need your help in this.