
Recherche avancée
Autres articles (10)
-
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 (...)
-
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 (...) -
Keeping control of your media in your hands
13 avril 2011, parThe vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)
Sur d’autres sites (4335)
-
Does FFMpeg random generates identical sequences of pseudo-random numbers for consecutive executions ?
20 août 2020, par justewFor example if I execute command twice :


ffmpeg -i input.mp4 -vf geq=r='random(1)*255':g='random(1)*255':b='random(1)*255' -strict -2 output.mp4


For the same source file, I have identical output files. Why ? I want to get different output files.


Testing configuration :


ffmpeg version 2.8.17-0ubuntu0.1 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609



I suppose that's because randomizer start value is identical. Does ffmepg have function like srand ?


More specifically I want to add random noise just like this :
noise=alls=20:allf=p+t+u
. But if I try do so I got the same noise for different executions on the same input file.

-
avcodec/cbs_av1 : Fix writing uvlc numbers >= INT_MAX
18 juin 2020, par Andreas Rheinhardtavcodec/cbs_av1 : Fix writing uvlc numbers >= INT_MAX
Fixes : assertion failure
Fixes : left shift of 1 by 31 places cannot be represented in type 'int'
Fixes : 23264/clusterfuzz-testcase-minimized-ffmpeg_BSF_AV1_METADATA_fuzzer-6308429248593920Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
-
avformat/hlsenc : Always treat numbers as decimal
15 juin 2020, par Andreas Rheinhardtavformat/hlsenc : Always treat numbers as decimal
c801ab43c36e8c4f88121aa09af26c77bcbd671b caused a regression : The stream
number is now parsed with strtoll without a fixed basis ; as a
consequence, the "010" in a variant stream mapping like "a:010" is now
treated as an octal number (i.e. as eight, not ten). This was not
intended and may break some scripts, so this commit restores the old
behaviour.Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>