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Autres articles (77)
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Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.
Sur d’autres sites (11919)
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Video Concat using ffmpeg [closed]
17 juin 2022, par Milan K Jainffmpeg -i url1 -i url2 -i url3 -i url4 -filter_complex "[0:v:0]scale=1920:1080[c1] ; [1:v:0]scale=1920:1080[c2] ; [2:v:0]scale=1920:1080[c3] ; [3:v:0]scale=1920:1080[c4], [c1] [0:a:0] [c2] [1:a:0] [c3] [2:a:0] [c4] [3:a:0] concat=n=4:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" /Users/myname/Downloads/f1-2017-07-12.mp4 -y


In Place of url I want to give link U get from after storing my video in amazon s3 bucket
Someone pls help


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Read Audio and Video, edit Video frame, then write back Audio and Video - Using python
19 avril 2021, par CowKeyManI'm looking to do exactly as the title says, ie :


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- Read a file containing both audio and video
- Edit the video frames individually
- Write back the video with the new frames but the same exact audio as before








OpenCV is not a good option for reading and writing since it doesn't handle audio, altough I can use opencv in step 2.


The language I am using is Python, as this needs to be integrated with a bigger system.


My question is this : What software stack / librarries are appropriate for this kind of task and if anyone can point me to some resources it would be highly appreciated


So far I have found the following options, but would like some feedback on them based on experience :


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- ffmpeg
- MoviePy
- libav








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ffmpeg - why I have three video streams in the output file when I have one video input (one video stream), one logo input
17 juillet 2024, par YazhouHi I'm using ffmpeg to transcode some video files from prores or dv to h264/mov. Also I want to add a logo on it and make some other changes.
The command line I use is


ffmpeg -i input.mov -i logo.png -c:a aac -c:v libx264 -pix_fmt yuv420p -crf 18 -map 0:a? -map 0:v -filter_complex "yadif,[1]scale=iw*1:-1[wm];[0:v:0][wm]overlay=main_w-overlay_w-5:5" -disposition:v:0 default output_h264.mov


And what I got has three video streams. One for the logo,one for the video with logo, and one for original video.


Though I put the default video stream as the one with both video and logo as you can see for
-disposition:v:0 default
, and it's also playing that stream. But when I tried to upload it on Vimeo or Youtube, it uses the wrong stream.


How can I change the command line to let ffmpeg only output one stream ?
And how can I remove the extra streams for the existed outcomes ?