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Autres articles (66)
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Installation en mode ferme
4 février 2011, parLe mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
C’est la méthode que nous utilisons sur cette même plateforme.
L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...) -
Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...)
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ffmpeg Error : Pattern type 'glob' was selected but globbing is not support ed by this libavformat build
20 juillet 2015, par Aryan NaimI’m trying to convert group of ".jpg" files acting as individual frames into 1 single mpeg video ".mp4"
Example parameters i used :
frame duration =2 secs
frame rate =30 fps
encoder = libx264 (mpeg)
input pattern = "*.jpg"
output pattern = video.mp4
Based on ffmpeg wiki instructions at (https://trac.ffmpeg.org/wiki/Create%20a%20video%20slideshow%20from%20images), I issued this command :
ffmpeg -framerate 1/2 -pattern_type glob -i "*.jpg" -c:v libx264 -r 30 -pix_fmt yuv420p video.mp4
Im getting this error :
[image2 @ 049ab120] Pattern type ’glob’ was selected but globbing is not support
ed by this libavformat build
*.jpg : Function not implementedWhich probably means the API pattern matching commands for my build/version have changed. By the way this my windows 32bit ffmpeg download build # ffmpeg-20150702-git-03b2b40-win32-static.
How can I choose a group of files using pattern matching using ffmpeg ?
Thanks
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Can not build ffmpeg with gpu acceleration on macOS
21 février 2018, par Kirill SerebriakovI’m trying to use my GPU for video encoding/decoding operations on macOS.
- OS : MacOS 10.12.5 (Sierra) //hackintosh if it matters
- CUDA Toolkit 8.0 installed
- NVidia GTX 1080 with latest web driver
Followed this guides :
Config :
./configure --enable-cuda --enable-cuvid --enable-nvenc \
--enable-nonfree --enable-libnpp \
--extra-cflags=-I/Developer/NVIDIA/CUDA-8.0/include \
--extra-ldflags=-L/Developer/NVIDIA/CUDA-8.0/libGot this error :
ERROR: cuvid requested, but not all dependencies are satisfied: cuda
config.log - full configure log
I did not install Video Codec SDK (not sure how to make it on macOS, just thought that it may come with cuda toolkit) and according to this page I have a lot of limitations on OSX.
Is it possible on macOS ? Or this will work only for linux/windows ?
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ffmpeg compile for visual studio 2012
3 octobre 2020, par user2290878Was trying to compile ffmpeg using vs2012 , its saying unsupported ms version used 2013 or above .


also tried compiling with mingw , got the shared libraries , but unable to link with vs 2012 project giving unresolved symbols error .


error LNK2019 : unresolved external symbol _avcodec_get_class referenced in function _wmain
 : error LNK2019 : unresolved external symbol _avcodec_find_encoder_by_name referenced in function _wmain


not sure how to proceed . could nay help on this pls .


tried the way specified in the link https://trac.ffmpeg.org/wiki/CompilationGuide/MSVC but could not make it .