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Autres articles (104)
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MediaSPIP 0.1 Beta version
25 avril 2011, parMediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
The zip file provided here only contains the sources of MediaSPIP in its standalone version.
To get a working installation, you must manually install all-software dependencies on the server.
If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...) -
Multilang : améliorer l’interface pour les blocs multilingues
18 février 2011, parMultilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela. -
Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)
Sur d’autres sites (9448)
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ffmpeg images-to-video script anyone ?
3 février 2014, par danjaI'm wanting to take a bunch of images and make a video slideshow out of them. There'll be an app for that, right ? Yup, quite a few it seems. The problem is I want the slides synced to a piece of music, and all the apps I've seen only allow you to show each slide for a multiple of a whole second. I want them to show for multiples of 1.714285714 seconds to fit with 140 bpm.
The tools I've seen generally seem to have ffmpeg under the hood, so presumably this kind of thing could be done with a script. But ffmpeg has sooo many options...I'm hoping someone will have something close.
I'll have up to about 100 slides, the ones that have to show for 3.428571428 secs or whatever I guess I can simply show twice.
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split video (avi/h264) on keyframe
30 novembre 2012, par m.srHallo.
I have a big video file.
ffmpeg
,tcprobe
and other tool say, it is an h264-stream in an AVI-container.Now i'd like to cut out small chunks form the video.
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Problem : The index of the video seam corrupted/destroyed. I kind of fixed this via
mplayer -forceidx -saveidx <indexfile> <bigvideofile></bigvideofile></indexfile>
. The Problem here is, that I'm now stuck with mplayer/mencoder which can use this index file via-loadidx <indexfile></indexfile>
. I have tried correcting the index like described inman aviindex
(mplayer -frames 0 -saveidx mpidx broken.avi ; aviindex -i mpidx -o tcindex ; avimerge -x tcindex -i broken.avi -o fixed.avi
), but this didn't fix my video - meaning that most tools i've tested couldn't search in the video file. -
Problem : I cut out parts of the video via following command :
mencoder -loadidx in.idx -ss 8578 -endpos 20 -oac faac -ovc x264 -sws 9 -lavfopts format=mp4 -x264encopts <lotsofopts> -of lavf -vf scale=800:-10,harddup in.avi -o out.mp4</lotsofopts>
. Now here the problem is, that some videos are corrupted at the beginning. I think this is because the fact, that i do not necessarily cut at keyframe.
Questions :
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What is the best way to fix the index of an avi "inline" so that every tool can again work as expected with it ?
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How can i split at the keyframes ? Is there an mencoder-option for this ?
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Are Keyframes coming in a frequency ? How to find out this frequency ? (So with a bit of math it should be possible to calculate the next keyframe and cut there)
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Is ther perhaps some completely other way to split this movie ? Doing it by hand is no option, i've to cut out 1000+ chunks ...
Thanks a lot !
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Audio output with video processing with opencv
22 février 2012, par victor1234I am processing video with opencv, but at the same time I need to play audio and simply control it, like loud or current frame number.
I think I should create a parallel process with ffmpeg, but I don't know how to do so. Can you explain what to do ?
Or do you know another solution ?