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Autres articles (67)
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Les images
15 mai 2013 -
Mediabox : ouvrir les images dans l’espace maximal pour l’utilisateur
8 février 2011, parLa visualisation des images est restreinte par la largeur accordée par le design du site (dépendant du thème utilisé). Elles sont donc visibles sous un format réduit. Afin de profiter de l’ensemble de la place disponible sur l’écran de l’utilisateur, il est possible d’ajouter une fonctionnalité d’affichage de l’image dans une boite multimedia apparaissant au dessus du reste du contenu.
Pour ce faire il est nécessaire d’installer le plugin "Mediabox".
Configuration de la boite multimédia
Dès (...) -
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
Sur d’autres sites (7936)
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VLC freezes for low 1 FPS video created from images with ffmpeg
15 janvier 2020, par user2861936I am creating a short video from a sequence of 100 images using ffmpeg. There are several articles that helped me put together a command, but the one I’m using is directly taken from ffmpeg images-to-video script anyone ?.
The following command produces a video file that plays well in all video players I have (OS X).
cat input/*.jpg | ffmpeg -f image2pipe -r 10 -vcodec mjpeg -i - out.mp4
But if I change it to,
cat input/*.jpg | ffmpeg -f image2pipe -r 1 -vcodec mjpeg -i - out.mp4
It plays well in all but VLC media player. VLC displays the initial 1 to 3 images, then just freezes on the frame. I’ve tested a few different frame rates, and it seems the cutoff that breaks the video playback in VLC lies somewhere between 1.125 and 1.175.
Any advice on what I’m dealing with here would be much appreciated.
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ffmpeg take long time for creating video from images [on hold]
22 janvier 2014, par user3222005I am trying to create video from images.
but it takes too much time if I select more than 10 images.
Can anybody help me to resolve this problem.
I am using the following command :ffmpeg -y -r 1/5 -i frame_%05d.jpg -c:v libx264 -r 30 video.mp4;
Thanks in advance.
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Combine unordered images to video (+MP3 audio)
8 mars 2012, par TheSHEEEPSo I did a few jobs with ffmpeg and also created my own dll, using ffmpeg API directly, but for my next project, I need to be able to combine multiple images together to a video with ffmpeg, also adding a mp3 sound clip.
I know that you can do that for ordered images like this :image001.jpg image002.jpg image003.jpg etc...
ffmpeg -f image2 -i img%03d.jpg -i sound.mp3 output.mpgBut in our project, we do not have the images ordered like that. Instead, which images to use for the video in which order is determined at runtime (one image for each frame of a video at 30fps).
So a video with 10 frames, for example, could have to consist of the following order of images :image001.jpg image002.jpg image111.jpg image012.jpg imageFun.jpg image001.jpg image002.jpg imageFun.jpg image055.jpg imageEnd.jpg
How would I do that using ffmpeg ? This part of the documentation doesn't exactly help me here.
I really don't want to resort to using the ffmpeg API directly from C/C++, but fear that I have to if that is not possible "natively".
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Addition :
If that is not possible with ffmpeg, but with some other software (that runs on Linux and can be controlled from command line) - I'm all ears ! ;)