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Autres articles (87)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
Submit enhancements and plugins
13 avril 2011If you have developed a new extension to add one or more useful features to MediaSPIP, let us know and its integration into the core MedisSPIP functionality will be considered.
You can use the development discussion list to request for help with creating a plugin. As MediaSPIP is based on SPIP - or you can use the SPIP discussion list SPIP-Zone.
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Flutter Animated Thumbnails
2 septembre 2020, par user433575I'm using the camera package to record videos and want to have animated thumbnails. I don't see any packages other than ffmpeg which might be able to do it but I'm stuck.


I need to capture videos using the camera package, save them to mp4 and generate webp animated images from it. Any help or suggestions greatly appreciated.


Here's some of my code :


static Future<string> getThumb(videoPath, width, height) async {
assert(File(videoPath).existsSync());

final String outPath = '$videoPath.webp';
final arguments =
 '-y -i $videoPath -vcodec webp -loop 0 -pix_fmt yuv420p $outPath';

 
final int rc = await _encoder.execute(arguments);
assert(rc == 0);
assert(File(outPath).existsSync());

return outPath;
</string>

}


Thanks


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ffmpeg scale filter takes too long
17 juin 2020, par Prashant_SarinI am using below command to scale and blur a video but it is very slow. Can anyone please help if i can improve the speed somehow.



"ffmpeg -i $inputPath -lavfi [0:v]split=2[original][copy];[copy]scale=ih*16/9:-1,crop=h=iw*9/16,boxblur=luma_radius=50:chroma_radius=25:luma_power=2[blurred];[blurred][original]overlay=(main_w-overlay_w)/2:(main_h-overlay_h)/2[final] -map [final] -map a:0 -g 2 -preset ultrafast $outputPath -y"


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Problems cropping videos with ffmpeg -ss -t
8 décembre 2016, par Alex BollbachI have been trying to figure out how to precisely crop out sub-sections of a video
final.mp4, for example a cropped video with range [0.2, 0.28] or [9.1, 10.2]. So I’ve been using ffmpeg with -ss and -t options. The following command (or some similar form) is what I’ve seen prescribed :ffmpeg -y -i final.mp4 -ss 00:00:01 -t 00:00:01.5 -acodec copy -vcodec copy crop1.mp4What I expect is a cropped video of length 1.5 starting at time
1.0, but I get a broken video that doesn’t play. Or I’ll try :ffmpeg -y -i final.mp4 -ss 1 -c copy -t 1.5 crop1.mp4and get a video with the audio cropped to 1.5 seconds but the video lasting much longer freeze framed.
The point is this should be a relatively straightforward operation but I’m running into problems at every turn. What is wrong with these commands ? My original video is a 7 minute youtube ripped mp4 which I trimmed down to 10 seconds (this seemed to work). But now further finer-grain trimming of that video is showing confusing behavior. Perhaps my video file is somehow in a bad state from the first trimming ?
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