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Autres articles (51)
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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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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
Sur d’autres sites (5191)
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Download ONLY audio from a youtube video
30 avril 2017, par FerasI know that there are a million ways to download a video from youtube and then convert it to audio or do further processing on it. But recently I was surprised to see an app called YoutubeToMp3 on mac actually showing "Skipping X mb of video" and supposedly only downloading the audio from the video, without the need to use bandwith to download the entire video and then convert it. I was wondering if this is actually correct and possible at all because I cant find any way to do that. Do you have any ideas ?
EDIT :
After some tests here is some additional information on the topic. The video which I tried to get the audio from is just a sample mp4 file from the internet :I tried
ffmpeg -i "input" out.mp3
ffmpeg -i "input" -vn out.mp3
ffmpeg -i “input” -vn -ac 2 -ar 44100 -ab 320k -f mp3 output.mp3
ffmpeg -i “input” -vn -acodec copy output.mp3
Unfortunately non of these commands seems to be using less bandwith. They all download the entire video. Now that you have the video can you confirm if there is actually a command that downloads only the audio stream from it and lowers the bandwith usage ? Thanks !
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ffmpeg movie with 'frame reordering'
28 juillet 2014, par CRGreenHow does one, if possible, manipulate ffmpeg x264 settings to allow for what QuickTime calls "frame re-ordering" — that is, the ability to play a movie backwards smoothly (and do what is called "scrubbing") ? An example of my code is this :
/usr/local/bin/ffmpeg -i '/path/to/moviefile.mov' -acodec mp3 -b:a 55k -vcodec libx264 -s 640x400 -pix_fmt yuv420p -b:v 2700k 'path/to/outputmoviefile.mov'
The output movie using this code is good, seems optimized for playing forward, but does not seem so good for playing the movie backwards or scrubbing.
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ffmpeg and timecode from movie metadata
17 décembre 2015, par T4ng10rI want to add to movie made by digital camcorder timecode. This timecodes are visible during playback in camera, some tool to extract and visualize EXIF metadata also display them.
I made few attempts to configure ffmpeg, but only succeed in adding CURRENT PC time, not time from file.
ffmpeg -y -i S1480002.MP4 -vf "drawtext=fontfile=arial.ttf :expansion=normal: text=%{metadata\\:creation_time}: \ x=(w-tw)/2: y=h-(2*lh): fontcolor=white@0.8" output.mp4
I need to extract creation time from input file metadata. ffprobe display this time, but ffmpeg don’t.