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Médias (1)
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Bug de détection d’ogg
22 mars 2013, par
Mis à jour : Avril 2013
Langue : français
Type : Video
Autres articles (42)
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Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...) -
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 (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)
Sur d’autres sites (7096)
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Is it possible to count from a given number when extracting images from a video with FFmpeg ?
10 septembre 2014, par KonstantinI am using ffmpeg to extract still images from a video. First from the beginning of the video, to a given time and then from the end of the video from a given time. So I am using two ffmpeg command line to achieve my goal. My problem is when I save the images both sequence start from 1 or 00000001, and I want to start the second sequence at some different (but greater) number than the first sequence ends. My command are :
wine avs2yuv.exe input1.avs - | ffmpeg -y -f yuv4mpegpipe -i - -f image2 -vf fps=fps=0.1 -q:v 2 ./thumb001/%09d.jpg"
wine avs2yuv.exe input2.avs - | ffmpeg -y -f yuv4mpegpipe -i - -f image2 -vf fps=fps=15 -q:v 2 ./thumb002/%09d.jpg"I made my avisynth files to yield the appropriate parts of the video I need.
For example when the first command extarct 1500 images, name of the last file is 000001500.jpg
I want the second command to start the counting from 1501 or maybe more, to get file names from 000001501.jpg, 000001502.jpg, etc. -
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ffmpeg encode video en VBR
23 février 2017, par AminesrineI want to transcode a video en VBR (Variable Bit Rate) with Ffmpeg.
I added to my commande Ffmpeg thes options :-q:v n1
and-q:a n2
I want to have 4 files video for the differents bitrate (1500,850,450 et 250)
In the encoding en CBR I use :- `-b:v 1308k` and `-q:a 192k` for the bitrate 1500
- `-b:v 754k` and `-q:a 96k` for the bitrate 850
- `-b:v 402k` and `-q:a 48k` for the bitrate 450
- `-b:v 228k` and `-q:a 22k` for the bitrate 250What values can I use with options
-q:v n1
and-q:a n2
to have the 4 bitrates.