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Médias (1)
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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (42)
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Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users.
Sur d’autres sites (6534)
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Convert MP4 Version - FFmpeg
17 mai 2017, par LuzwitzI have two mp4 File :
- out.mp4 : ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]
- video/rio2016/finale/brasse/200.mp4 : ISO Media, MP4 v2 [ISO 14496-14]
How can I convert 1 to 2 (mp41 to mp42) ?
Thanks !
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Concert MP4 Version - FFmpeg
25 avril 2017, par LuzwitzI have two mp4 File :
- out.mp4 : ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]
- video/rio2016/finale/brasse/200.mp4 : ISO Media, MP4 v2 [ISO 14496-14]
How can I convert 1 to 2 (mp41 to mp42) ?
Thanks !
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How can I convert a webm file with alpha channel to a hevc encoded file that will play in safari on an IPad ?
21 septembre 2021, par Programming GuyI've got a webm file with transparency : https://itype.techforge.com.au/assets/videos/upshot/module1/NP_1A.webm


I'm trying to convert it into something that will play in the video element of a web page in the Safari browser on an IPad.


An example of a file that works is : https://rotato.netlify.app/alpha-demo/movie-hevc.mov


My attempts at doing this conversion have all failed. 3rd party apps seem to all lose the alpha channel.


On my mac I tried ffmpeg


ffmpeg -i input.webm -c:v hevc_videotoolbox -allow_sw 1 -alpha_quality 0.75 -vtag hvc1 output.mov



However, while this resulted in a file that reported a codec of MPEG-H Part2/HEVC (H.265) (hvc1) the resulting file still has a black background instead of a transparent one.


ffmpeg log : https://pastebin.com/DMM9y5PU