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Autres articles (72)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)
Sur d’autres sites (6849)
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FFmpeg cannot recognize a preset even though it does exist Ubuntu 12.04
6 septembre 2017, par Ahmad TahboubI have installed ffmpeg and x264 folloowing the steps in this documentation :http://ffmpeg.org/trac/ffmpeg/wiki/UbuntuCompilationGuide
Now I have this line to execute :
sudo /usr/bin/ffmpeg -i input_file.flv -f flv -vcodec libx264 -vpre normal -r 25 -s 0x0 -aspect 1.7777777777778 -padcolor 000000 -padtop 0 -padbottom 0 -padleft 0 -padright 0 -acodec libfaac -ab 128000 -ar 22050 output_file.flv
Input #0, flv, from 'WIN! Jwow.flv':
Metadata:
starttime : 0
totalduration : 101
totaldatarate : 865
bytelength : 10897460
canseekontime : true
sourcedata : BD58B2E43HH1338284027987695
purl :
pmsg :
Duration: 00:01:40.66, start: 0.000000, bitrate: 877 kb/s
Stream #0.0: Video: h264 (Main), yuv420p, 640x360, 745 kb/s, 29.97 tbr, 1k tbn, 59.94 tbc
Stream #0.1: Audio: aac, 44100 Hz, stereo, s16, 131 kb/s
**File for preset 'normal' not found**I have the presets in the the following directories :
/usr/share/ffmpeg
/usr/local/share/ffmpeg
/home/user/.ffmpeg
/usr/local/src/ffmpeg/presetsAnd still getting the same error : File for preset ’normal’ not found
What is the problem here ?
Extra info - this is what i get when i do ffmpeg -version
ffmpeg version git-2012-05-31-60de761
built on May 31 2012 15:54:11 with gcc 4.6.3
configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab -
The proper way to limit framerate when recording screen on macOS
5 juillet 2024, par jsxmacOS 14.5, FFmpeg 7.0.1. To record the screen, if I use the code from Wiki, that is,


ffmpeg -f avfoundation -i 1 output.mp4



the frame rate seems to be so high that when I press
q
to stop recording, the following message persists until my MacBook Pro starts to noise by its cooler : "[q] command received. Exiting."

My current solution is to add
-r
after-i
:

ffmpeg -f avfoundation -i 1 -r 24 output.mp4



But I heard that a more correct solution is to replace
-r
with-framerate
and to put it before instead of after-i
:



ffmpeg -f avfoundation -framerate 24 -i 1 output.mp4



Note that I used
-framerate
as an input option instead of-r 24
as an output option, so I'm telling avfoundation to record at 24fps instead of recording at the default fps and then forcing FFmpeg to drop or duplicate frames to give you the desired 24.



This doesn't work for me currently, and appears to be the same as I don't use
-r
at all.

And so, what is the proper way to fix the "too high framerate" issue when recording the screen on macOS ? Do we need
-r
or instead-framerate
, and where to put it, before or after-i
?

Just in case, here is the log of
ffmpeg -f avfoundation -i 1 output.mp4 -v verbose
:

https://github.com/jsx97/test/blob/main/ffmpeg.log


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Anomalie #4402 (Fermé) : Liste de notices
12 février 2021, par cedric -je ferme ce ticket, car un ticket qui référence un wiki qui liste des patches, ça commence à ressembler à un jeu de pistes
+ depuis novembre 2019 ces notices ont été corrigée
+ maintenant proposer une PR pour chaque cas quand on tombe dessus ça sera beaucoup plus efficace