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Valkaama DVD Cover Outside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
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Valkaama DVD Cover Inside
4 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Image
Autres articles (53)
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
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 (...)
Sur d’autres sites (7482)
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syncing video thumbnail frames with source video
12 octobre 2020, par biglessWe are trying to make video preview for seek bar. One approach is to make tons of images like Youtube does. We chose second one - 160x90(*) preview video without sound with fps limited to max 4 (250ms, based on duration) - one file with native seek sounds good to me.


This is current cmd we use :


ffmpeg -y -i $source$ -vf scale=$width$:$height$ -an -sn -r $fps$ -vcodec libx264 -x264-params keyint=$keyframe_interval$:scenecut=0 



The idea is that browser is able to fetch whole video preview (<10MB) so there is priority to minimize the size. It seems that html5 video player is able to seek to and decode other than keyframes so we set keyframe interval to duration of video with limit of max 384(1920/5px) for best compression ratio.


The issue we are facing is frame sync. When I hover seek bar, video preview shows frame that actually lacks 1-2sec behind hovered time. Does anyone got explanation and possibly fix for this ? Is there some time deviation when player decodes frame instead of showing keyframe ?


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Video upload with carrierwave-video on Rails 4
15 juin 2017, par MJRLGUEit’s been a while I am fighting to play a video in my rails app.
I am using carrierwave-video, OS : Windows 10 64bits, to stream/show a video in user posts.
Here is what I did :
the file
video_uploader.rb
:class VideoUploader < CarrierWave::Uploader::Base
include CarrierWave::Video
storage :file
def store_dir
"uploads/#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
endin the file :
_post.html.erb
:with this line of code :
<%= video_tag post.video_url :controls =>true %>
I get a blank box with the size of the video.
and I tried this too and still doesn’t work :<%= video_tag post.video.url if post.video? %>
I tried ffmpeg too, I installed ffmpeg in my pc and I did include :
process encode_video: [:mp4, callbacks: { after_transcode: :set_success } ]
invideo_uploader.rb
file and I get this form error message :Video Failed to transcode with FFmpeg. Check ffmpeg install and verify
video is not corrupt or cut short. Original error : ArgumentErrorAny suggestions please ?
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ffmpeg4android : overlay a video on video with opacity
21 juin 2016, par LuongTruongI am using ffmpeg4android to edit video. Now, I am able to overlay a video on a video by using this command :
String[] complexCommand = {"ffmpeg","-y" ,"-i", "/sdcard/videokit/in_big.mp4","-strict","experimental", "-vf", "movie=/sdcard/videokit/in_small.mp4 [watermark]; [in][watermark] overlay=main_w-overlay_w-0:0 [out]","-s", "320x240","-r", "30", "-b", "15496k", "-vcodec", "mpeg4","-ab", "48000", "-ac", "2", "-ar", "22050", "/sdcard/videokit/out.mp4"};
Now, I want to change the opacity of the video "in_small.mp4" which will be on the top of another video.
Some useful links :
using ffmpeg to add overlay with opacity
ffmpeg overlay video with semi transparent videoFrom those links, I know that
all_opacity
should be the keyword in this case, but I do not know where to put it in the command.Please let me know if you have any ideas. Any suggestion would be appreciated !