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Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
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 -
Changer son thème graphique
22 février 2011, parLe thème graphique ne touche pas à la disposition à proprement dite des éléments dans la page. Il ne fait que modifier l’apparence des éléments.
Le placement peut être modifié effectivement, mais cette modification n’est que visuelle et non pas au niveau de la représentation sémantique de la page.
Modifier le thème graphique utilisé
Pour modifier le thème graphique utilisé, il est nécessaire que le plugin zen-garden soit activé sur le site.
Il suffit ensuite de se rendre dans l’espace de configuration du (...)
Sur d’autres sites (12662)
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Load only the next 10min of HTML video when it is playing - not the entire video
13 avril 2016, par W3ApeI have videos on my website with duration of almost 2h (=> large file size).
I have managed to convert them to h265 to reduce server load. To further reduce server load I also want the video to only load e.g. the next 10min from the point the user currently is at in the video (and not the entire video). Youtube is doing it this way.
The HTML preload attribute does not have this option. Is there such a feature in ffmpeg (or anywhere else) ?
Thanks for a hint
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How to know the delay of frames between 2 videos, to sync an audio from video 1 to video 2 ?
8 janvier 2021, par jaimepmworld.


I have many videos that I want to compare one-to-one to check if they are the same, and get from there the delay of frames, let's say. What I do now is opening both video files with virtualdub and checking manually at the beginning of video 1 that a given frame is at position, i.e., 4325. Then I check video 2 to see the position of the same frame, i.e., 5500. That would make a delay of +1175 frames. Then I check at the end of the video 1 another given frame, position let's say 183038. I check too the video 2 (imagine the position is 184213) and I calculate the difference, again +1175 : eureka, same video !
The frame I chose to compare aren't exactly random, it must be one that I know it is exactly one I can compare to (for example, a scene change, an explosion that appears from one frame to another, a dark frame after a lighten one...) and I always try to check for the first comparison frames within the first 10000 positions and for the second check I take at the end.
What I do next is to convert the audio from video 1 to video 2 calculating the number of ms needed, but I don't need help with that. I'd love to automatize the comparison so I just have to select video 1 and video 2, nothing else, that way I could forget forever virtualdub and save a lot of time.


I'm tagging this post as powershell too because I'm making a script where at the moment I have to introduce the delay between frames (after comparing manually) myself. It would be perfect that I could add this at the beginning of the script.


Thanks !


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avfilter/vf_yadif : fix extra leading dup frame when deint=1
29 novembre 2014, par Neil Birkbeckavfilter/vf_yadif : fix extra leading dup frame when deint=1
Logic for handling single frame in yadif (0f9f24c9), caused deint=1 (e.g., yadif=0 :-1:1) to output extra duplicate leading frame :
ffmpeg -i fate-suite/ffmpeg-synthetic/vsynth1/%02d.pgm -vf yadif=0 :-1:1,showinfo -f null -y /dev/null
[Parsed_showinfo_1 @ 0x1d967d0] n:0 pts:0 pts_time:0 pos :-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:E457EEA0 plane_checksum :[E457EEA0] mean :[126] stdev :[46.6]
[Parsed_showinfo_1 @ 0x1d967d0] n:1 pts:0 pts_time:0 pos :-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:E457EEA0 plane_checksum :[E457EEA0] mean :[126] stdev :[46.6]
(Outputs 51 frames)After patch, vf "yadif=0 :-1:1" behaves correctly (like "yadif=0 :-1:0") and outputs 50 frames, first two :
[Parsed_showinfo_1 @ 0x1e307d0] n:0 pts:0 pts_time:0 pos :-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:68E8D1EB plane_checksum :[68E8D1EB] mean :[126] stdev :[46.0]
[Parsed_showinfo_1 @ 0x1e307d0] n:1 pts:2 pts_time:0.04 pos :-1 fmt:gray sar:0/1 s:352x432 i:P iskey:1 type:I checksum:4E674BC7 plane_checksum :[4E674BC7] mean :[125] stdev :[46.0]
(Outputs 50 frames)Signed-off-by : Neil Birkbeck <neil.birkbeck@gmail.com>
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>