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SWFUpload Process
6 septembre 2011, par
Mis à jour : Septembre 2011
Langue : français
Type : Texte
Autres articles (103)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
Gestion de la ferme
2 mars 2010, parLa ferme est gérée dans son ensemble par des "super admins".
Certains réglages peuvent être fais afin de réguler les besoins des différents canaux.
Dans un premier temps il utilise le plugin "Gestion de mutualisation"
Sur d’autres sites (7215)
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ffmpeg : zoom over a squared image
23 février 2017, par SulliI am using this command to create a zoom effect over a square image :
ffmpeg -r 25 -i image.jpg -filter_complex "scale=-1:10*ih,zoompan=z='min(zoom+0.0015,1.5)':d=125:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)',scale=-1:720" -y -shortest -c:v libx264 -pix_fmt yuv420p output.mp4
it works great, except the video is not squared at the end, it’s a regular 16/9. I tried to play with the scale parameter but the video becomes stuttered every time I change something.
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panning and zooming multiple images with ffmpeg
16 mars 2017, par user1796752I have multiple images that I want to fade and zoompan for each image but when I do what others have said, the first image works perfect and the second is black. I want to have 25 images and the same thing occurs with every image black except the first one. I am sure I am missing something elementary. Please help.
ffmpeg -r .1 -i image_1.jpg -i image_2.jpg -vf "zoompan=z='min(zoom+0.0015,1.5)':d=125,fade=t=in:st=0:d=0.5,fade=t=out:st=4.5:d=0.5" -pix_fmt yuv420p output.mp4
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In ffmpeg how to keep text same location while filtering like zooming ?
12 juillet 2019, par No_0n3In ffmpeg how do I keep the text in the same location while filtering ? e.g. zooming
FFmpeg for linux
ffmpeg
-t 5
-i x.jpg -filter_complex "[0:v]drawtext=fontfile='ariblk.ttf':text='test text':fontsize=24:x=0.23333333333333*main_w: y=0.1325*main_h:fontcolor=#000000: alpha=1,zoompan=z='if(lte(zoom,1.0),1.5,max(1.001,zoom-0.0015))':d=125,fade=t=out:st=4:d=1[v0]; [v0]concat=n=1:v=1:a=0,format=yuv420p[v]"
-map "[v]"
-s "800x450"
-t 40 ./video.mp4The text is zoomed in as well but I want it to keep the same size.