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Autres articles (75)
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Taille des images et des logos définissables
9 février 2011, parDans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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Pas question de marché, de cloud etc...
10 avril 2011Le vocabulaire utilisé sur ce site essaie d’éviter toute référence à la mode qui fleurit allègrement
sur le web 2.0 et dans les entreprises qui en vivent.
Vous êtes donc invité à bannir l’utilisation des termes "Brand", "Cloud", "Marché" etc...
Notre motivation est avant tout de créer un outil simple, accessible à pour tout le monde, favorisant
le partage de créations sur Internet et permettant aux auteurs de garder une autonomie optimale.
Aucun "contrat Gold ou Premium" n’est donc prévu, aucun (...)
Sur d’autres sites (10319)
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Overlay timelapse video on solid background colour using ffmpeg
13 septembre 2020, par hamchapmanI've got a load of screenshots of a homepage that are named
homescreen000001.png
,homescreen000002.png
, etc and I'm trying to create a time-lapse video of these images using ffmpeg.


I've got it working in general when I run the following :



ffmpeg -f image2 \
 -i ~/Desktop/homescreen%06d.png \
 -r 0.5 \
 -s 1440x900 \ 
 -b:v 1M \
 -vcodec libx264 \ 
 -pix_fmt yuv420p \
 ~/Desktop/timelapse.mp4




However, it turns out that some of the images have transparent backgrounds so the background is showing up as black on those images.



I'd like a white background so I've been trying to set that up using ffmpeg as follows :



ffmpeg -f image2 \
 -loop 1 \
 -i ~/Desktop/whitebg.png \
 -i ~/Desktop/homescreen%06d.png \
 -filter_complex overlay \ 
 -r 0.5 \
 -s 1440x900 \ 
 -b:v 1M \
 -vcodec libx264 \ 
 -pix_fmt yuv420p \
 ~/Desktop/timelapse.mp4




Here
whitebg.png
is 2px x 2px png with a white background, and that's it.


This ffmpeg command produces a really tiny (in file size) video that's just a white background.



Can anyone explain how I can overlay the images as a time-lapse video over a white background using ffmpeg ?


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doc/html : fix styling issue with Texinfo 7.0
8 novembre 2023, par Frank Plowmandoc/html : fix styling issue with Texinfo 7.0
Texinfo 7.0 produces quite different HTML to Texinfo 6.8. Without
this change, enumerated option flags (i.e. Possible values of x
are...) render as white text on a white background with Texinfo 7.0
and are unreadable. This change removes a style for the selector
`.table .table` which causes the background to turn white for these
elements. As far as I can tell, it is not actually used anywhere in
files generated by Texinfo 6.8.Signed-off-by : Frank Plowman <post@frankplowman.com>
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FFmpeg command works locally but not on Azure Batch Service
10 août 2018, par ElgertI have a command that generates a video with background and text on it with FFmpeg and would like to render it using Azure Batch Service. Locally my command works :
./ffmpeg -f lavfi -i color=c=green:s=854x480:d=7 -vf "[in]drawtext=fontsize=46:fontcolor=White:text=dfdhjf dhjf dhjfh djfh djfh:x=(w-text_w)/2:y=((h-text_h)/2)-48,drawtext=fontsize=46:fontcolor=White:text= djfh djfh djfh djfh djf jdhfdjf hjdfh djfh jd fhdj:x=(w-text_w)/2:y=(h-text_h)/2,drawtext=fontsize=46:fontcolor=White:text=fh:x=(w-text_w)/2:y=((h-text_h)/2)+48[out]" -y StoryA.mp4
while the one generated programatically with C# and added as a task in batch service retursn failure :
cmd /c %AZ_BATCH_APP_PACKAGE_ffmpeg#3.4%\ffmpeg-3.4-win64-static\bin\ffmpeg -f lavfi -i color=c=green:s=854x480:d=7 -vf "[in]drawtext=fontsize=46:fontcolor=White:text=dfdhjf dhjf dhjfh djfh djfh:x=(w-text_w)/2:y=((h-text_h)/2)-48,drawtext=fontsize=46:fontcolor=White:text= djfh djfh djfh djfh djf jdhfdjf hjdfh djfh jd fhdj:x=(w-text_w)/2:y=(h-text_h)/2,drawtext=fontsize=46:fontcolor=White:text=fh:x=(w-text_w)/2:y=((h-text_h)/2)+48[out]" -y StoryA.mp4
The ffmpeg configuration works, and also the Pool as I’ve already tested it with simpler ffmpeg commands which had input and output files. This command doesnt have input file, maybe that is part of the problem ?
Thank you