
Recherche avancée
Autres articles (112)
-
Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
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 (...) -
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 (...)
Sur d’autres sites (10429)
-
any solution to Matlab VideoReader on compressed avi file on Mac ?
3 décembre 2016, par Peng JL-ZhulinI am working on some video gamma correction. And I used some sample avi uncompressed clips from online, everything works just fine.
But once I try to use our own .avi video 1280x800 20 second about 400mb, Matlab can not read file through ’VideoReader’.I’m really sure the problem is that my video is compressed avi. And I have tried the following to solve it :
- some say in mac os, download gstreamer 0.10 may help. I did, but problem remained.
- i tried to use ffmpeg to convert the compressed avi to uncompressed avi (i dont think i am supposed to do this tho). but the new uncompressed video became a mess.
So, I was thinking, when working on compressed avi file in MATLAB in mac, is there a godd routine that people follow ?
Thanks a lot.
-
swresample : add exact_rational option
12 juin 2016, par Muhammad Faizswresample : add exact_rational option
give high quality resampling
as good as with linear_interp=on
as fast as without linear_interp=on
tested visually with ffplay
ffplay -f lavfi "aevalsrc=’sin(10000*t*t)’, aresample=osr=48000, showcqt=gamma=5"
ffplay -f lavfi "aevalsrc=’sin(10000*t*t)’, aresample=osr=48000:linear_interp=on, showcqt=gamma=5"
ffplay -f lavfi "aevalsrc=’sin(10000*t*t)’, aresample=osr=48000:exact_rational=on, showcqt=gamma=5"slightly speed improvement
for fair comparison with -cpuflags 0
audio.wav is 1 hour 44100 stereo 16bit wav file
ffmpeg -i audio.wav -af aresample=osr=48000 -f null -
old new
real 13.498s 13.121s
user 13.364s 12.987s
sys 0.131s 0.129slinear_interp=on
old new
real 23.035s 23.050s
user 22.907s 22.917s
sys 0.119s 0.125sexact_rational=on
real 12.418s
user 12.298s
sys 0.114spossibility to decrease memory usage if soft compensation is ignored
Signed-off-by : Muhammad Faiz <mfcc64@gmail.com>
- [DH] libswresample/arm/resample_init.c
- [DH] libswresample/options.c
- [DH] libswresample/resample.c
- [DH] libswresample/resample.h
- [DH] libswresample/resample_template.c
- [DH] libswresample/soxr_resample.c
- [DH] libswresample/swresample.c
- [DH] libswresample/swresample_internal.h
- [DH] libswresample/version.h
- [DH] libswresample/x86/resample_init.c
-
ffmpeg droplet with alternative outputs based on user input
13 janvier 2015, par cathorI’ve been looking into scripting a droplet in applescript where i can drop a bunch of videos on the app, get a dialog box, and convert the files with different settings (mainly resolution, gamma, rotation) based on user input via the dialog. The encoded files should be placed in a folder called "mp4" in the source dir.
How would i go ahead and set the dropped files as a variable to feed into the ffmpeg "-i" switch ?
How do i get the directory of the source files to run makedir in that folder ?
TIA
Calle