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Autres articles (111)
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Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs
12 avril 2011, parLa manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras. -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 is the first MediaSPIP stable release.
Its official release date is June 21, 2013 and is announced here.
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 (...)
Sur d’autres sites (14353)
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undefined reference to `x264_encoder_open_125'
18 juin 2013, par VishalWhile installing ffmpeg on Ubuntu 12.04
I am getting following error
libavcodec/libavcodec.a(libx264.o): In function `X264_init':
/root/ffmpeg/libavcodec/libx264.c:492: undefined reference to `x264_encoder_open_125'
collect2: ld returned 1 exit status
make: *** [ffmpeg_g] Error 1I am following the instructions given at
http://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuideDo anyone have idea about this error ?
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Trim video with reference to a start time and end time using FFMPEG
8 février 2015, par SatyI am trying to do an application in which I would like to give option to user to clip a video using double seekbar so that video can be cropped.
I had hassle importing FFmpeg into Eclipse. However, that pain is over, and I got two points of video and can instantiate FFmpeg’s instant.
My focus is to know to know the method and procedure to crop a video.
I got the command of cutting it, that is,
ffmpeg -ss [start] -i in.mp4 -t [duration] -c:v copy -c:a copy out.mp4
However, how do I use this in code ?
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Frame Accurate Seeking in WebM
11 janvier 2016, par SapphireSunI’m trying to do a somewhat tricky thing with WebM. I am trying to encode a stack of 256 biological images as a WebM. The time dimension of motion is very similar to the space dimension of the image stack so the compression ratios are insanely good. However, I am having trouble decoding the movie frames. I know that WebM uses an IPB predictive coding scheme, but I was reading several blog posts and discussion groups from WHATWG from 2011, and they said that frame accurate seeking was working in Chrome at that time.
When I do
video.currentTime = 0
, I correctly get this :However, if I do
video.currentTime = 0.34
(for example) I get something that looks like this :It looks like I’m getting a random poorly predicted frame. Am I just encoding the video wrong ? When I play it normally it looks fine.
I encoded the video using 256 pngs using ffmpeg compiled with libvpx using the VP8 codec.
ffmpeg -y -framerate 60 -start_number 0 -pattern_type glob -i '*.png' -qmin 10 -qmax 42 out.webm
References to the WHATWG and some other info from 2011 :
WHATWG discusses frame accuracy :
https://lists.w3.org/Archives/Public/public-whatwg-archive/2011Jan/0372.html
BBC Tech Director talking about frame accuracy :
http://www.bbc.co.uk/blogs/bbcinternet/2011/02/frame_accurate_video_in_html5.html