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    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

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    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
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Sur d’autres sites (9286)

  • Convert series of images to video

    13 mai 2013, par user1055153

    I have series of images with sorted names, like 0000000354 ... 0000008591
    I have tried using ffmpeg or MEncoder to convert theme. In ffmpeg the problem is this that it will operate while the names are like 0000000001 ... 00000000009 with %010d syntax.I don't know what syntax i should use for my images names.in mencoder it will cover all images But when i play the output video it doesn't show images,I want to show every image in 5 seconds or somthing like this, any one can help ?

  • Audio output with video processing with opencv

    22 février 2012, par victor1234

    I 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 ?

  • split video (avi/h264) on keyframe

    30 novembre 2012, par m.sr

    Hallo.

    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.

    1. 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 in man 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.

    2. 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 :

    1. What is the best way to fix the index of an avi "inline" so that every tool can again work as expected with it ?

    2. How can i split at the keyframes ? Is there an mencoder-option for this ?

    3. 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)

    4. 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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