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Autres articles (108)
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Les vidéos
21 avril 2011, parComme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...) -
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 ;
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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
Sur d’autres sites (10418)
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How to convert 4:3 video to 16:9 without stretching the original in ffmpeg
5 novembre 2016, par carvilI would like to convert some 4:3 videos that I took on an iPhone to 16:9, by adding black bars to both sides instead of stretching the video.
I tried something like this without success :
ffmpeg -y -i input.mov -aspect 1.7777777777777777 -s 640x360 output.mp4
Even though the output has the correct size, the video is stretched, which is not what I want.
How can I keep the proportion between the width and height of the original video, and add extra black bars to both sides to avoid stretching ?
This would be similar to how YouTube does it when uploading a video from an iPhone directly to YouTube.
Thanks !
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ffmpeg convert mp4 video for phones
23 avril 2015, par Ar MegatoxI need to make a video which will play on iPhone and Android but the problem is when I click play on the phone it needs minimum 7 seconds to start.
So maybe I need to fix something in this code to make the video play on phones (maybe another format is needed) :
ffmpeg -i VIDEO -c:v libx264 -s 640x480 -strict experimental -c:a aac VIDEO.MP4
There must be something to make the video play faster without a delay on start.
I tried a
FLV
file and it worked fine on Android but the iPhone can’t play it. -
How build ffmpeg optimized for iOS, using hardware decoding probably ?
9 décembre 2013, par jAckOdEI make a FFMPEG-based player for ios. It works fine on simulator, but on real-device (iPhone 4) the frame rate is low and make my audio and video out of sync. the player works fine on iPhone 4s, so I guess it's just problem about device's computing power.
So, is there anyway to build FFMPEG optimized for iOS device (armv7, arvm7s arch) ? or is there anyway to utilize ios device hardware to decode video stream ?
My video stream is encode in H264/AAC.