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Médias (1)
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Géodiversité
9 septembre 2011, par ,
Mis à jour : Août 2018
Langue : français
Type : Texte
Autres articles (111)
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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 (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...) -
De l’upload à la vidéo finale [version standalone]
31 janvier 2010, parLe chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
Upload et récupération d’informations de la vidéo source
Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)
Sur d’autres sites (6869)
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Softwares for adding real time text to a video [on hold]
30 juillet 2013, par user763410I am trying to add real time text (like weather information, stock quotes) to a video and broadcast it. My videos are going to be 2 hours long. I have been searching for decent softwares which can do the work for me. FFmpeg can do overlays only if text to be added is available fully before running ffmpeg code, so its not real time. I have not been able to able to get gstreamer to work on my hardware.
So, My question is :
Please suggest some softwares which can add (text)data to a video in real time.
Please don't post comparisons as that will trigger moderator's anger ! I don't want to start a flame war. Purpose of the question is to make a list. Btw, this should work from command line rather than a GUI.(Ps : If the question is closed because of being "not cnonstructive, please answer it on my google docs page here.
http://goo.gl/14dR2H)Thanks very much in advance.
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ffmpeg : 1 image + 1 audio = 1 video (how can it encode faster ?)
11 août 2013, par user1062949I want ffmpeg to take a png image and a mp3 audio file as input and generate a video file of the same duration as the audio file. I'm using the following command :
ffmpeg -loop 1 -shortest -y -i image.png -i audio.mp3 -acodec copy \
-vcodec libx264 video.movHowever, given a 40min mp3 file (160kbps) as input, it is taking more than 2 hours to encode the whole video on a MacBook Pro i5 2.5GHz.
I tried to use the -preset ultrafast option, but it is not really improving the encoding speed significantly.
Is there any way to encode it faster using ffmpeg ?
I was following the instructions provided in this post : ffmpeg : 1 image + 1 audio file = 1 video
Any help will be appreciated, thank you.
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Changing the video file attribute without modifying it ffmpeg
9 décembre 2017, par JoeSkurczysynI am using a ffmpeg script to change the creation date of the file (access to the file) in the meta tag, parameter : creation_time. It’s just that the script that I use modifies the entire video file and change the normal parameter, not only that changes the parameters of the file, it still takes several hours.
How to improve it ?
ffmpeg -i 06.02.2017_PC.mp4 -c copy -map 0 -metadata creation_time="2016-02-06 18:10:27" 06.02.2017_PC2.mp4
pauseHow to improve it ?