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Autres articles (29)
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Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs -
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
Sur d’autres sites (4108)
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Make an Alpha Mask video from PNG files
15 juin 2019, par Archimedes TrajanoFor RenPy it uses the notion of an Alpha Mask video https://www.renpy.org/doc/html/movie.html#movie-displayables-and-movie-sprites
I can convert the a bunch of PNGs with alpha channel to http://wiki.webmproject.org/howtos/convert-png-frames-to-webm-video I was wondering how to do the same sort of thing without creating another set of PNG files with just the alpha frame.
I’ll be okay with something that uses imagemagik in the middle if needed.
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what is the best way to append a video file to multiple video files using batch file [on hold]
5 avril 2017, par JAGGADAKUi am beginner with computer programming and i have knowledge of c/c++
from [https://trac.ffmpeg.org/wiki/Concatenate][1] i have learned that how to merge video files using ffmpeg
To list all video files containing in a folder
(for %%i in (*.mp4) do @echo %%i) > mylist.txt
to concatenate files
ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4
This merges all files of a list to one single file.
but How do i append one video file(main.mp4) at the starting of all the video files listed in mylist.txt ?can someone help me ?
Hello there
i have tried following code i don’t know what’s wrong with it but it is not `
@echo off
(for %%i in (*.mp4) do @echo %%i) > mylist.txt
for /F "tokens=*" %%A in (mylist.txt) do (
echo %%A
ffmpeg -i "concat:main.mp4|%%A" -c copy %%Aoutput.mp4
)
` -
Is ffmpeg running in CPU or GPU ?
25 mai 2021, par Raghul SelvarajIt has been shown in the link





https://dri.freedesktop.org/wiki/IntelPerformanceTuning/

 

Step 2 : CPU vs GPU





that if the CPU % is more than 90 then the app is running in CPU.



While configuring ffmpeg, I enabled opencl. ffmpeg configurations are,



ffmpeg version ebe0fa0 Copyright (c) 2000-2015 the FFmpeg developers
 built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
 configuration: --enable-gpl --enable-libx264 --enable-opencl --enable-nonfree --enable-libmfx --enable-libmp3lame --enable-libaacplus
 libavutil 54. 31.100 / 54. 31.100
 libavcodec 56. 60.100 / 56. 60.100
 libavformat 56. 40.101 / 56. 40.101
 libavdevice 56. 4.100 / 56. 4.100
 libavfilter 5. 40.101 / 5. 40.101
 libswscale 3. 1.101 / 3. 1.101
 libswresample 1. 2.101 / 1. 2.101
 libpostproc 53. 3.100 / 53. 3.100
Hyper fast Audio and Video encoder
usage: ffmpeg [options] [[infile options] -i infile]... {[outfile options] outfile}...




But while running ffmpeg using the command



ffmpeg -i /home/M.mp4 -c:v h264 -preset:v faster /home/out.avi



the CPU% has been more than 90 (375%).



In case of ImageMagick, if I enable opencl while configuring, then the app will run in GPU, i.e., the CPU% will be less than 90. I noticed that.



But in case of ffmpeg, it is GPU accelerated one. Then, Why the CPU% is more than 90% ? Is the ffmpeg running in CPU or GPU ? If it is not, how can I make it to run in GPU ?