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Autres articles (65)
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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 (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Possibilité de déploiement en ferme
12 avril 2011, parMediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)
Sur d’autres sites (12366)
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Video transcoding
12 mai 2020, par avanjvI have successfully implemented video compression commands for android using FFmpeg with following command :



ffmpeg -i input.mp4 -vf "scale=-1:height" -vcodec h264 -b:v 1000k -acodec mp3 output.mp4



It reduces video file size substantially, though after compression video was not playing on some android devices, the issue was resolved by removing codec from the command



ffmpeg -i input.mp4 -vf "scale=-1:height" -b:v 1000k output.mp4



But the processing time is way too longer than expected.
I have found this official linkedin library for video transcoding
https://github.com/linkedin/LiTr



Which can be used for changing resolution and/or bitrate of a video track(s). Has anyone used it ? I am new in this field, I couldn't figure out the methods to be used for scaling and adjusting bitrate of a video file for this lib (Litr). Any help with these methods ?


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How to speed up m3u8 to mp4 conversion using ffmpeg
17 décembre 2022, par Sahil BagdiI am downloading mp4 from m3u8 using ffmpeg


ffmpeg -i "https://92vod-adaptive.akamaized.net/exp=1671307488~acl=%2F48b4b587-13d3-42f9-bfb9-8a0c92876523%2F%2A~hmac=66ce19e1dc862e0b718a3eb73b42f54bf83855db43831e146252adccf0dc6f1a/48b4b587-13d3-42f9-bfb9-8a0c92876523/sep/video/67e2046f,8f9cecb7,b83b6682,0f26a563,3c957583/audio/0b5e7d8c,5f37ccc0,60c393d7/subtitles/59401986-English%20%28auto-generated%29-en-x-autogen-cc/master.m3u8?subcache=1&external-subs=1&subtoken=38c45483ebf2c8238ec8504c20207a588d72f633f79608c00f5950d0300576f3&query_string_ranges=1" -c copy -map p:0 "Testing of Hypothesis.mp4"



but it is taking too long, like my speed is 10 MBps(80 mbps) size is 300MB, should be done in 30 seconds, but it takes upto 5-10 minutes sometimes, now I know it does some converting thing


My question is is there any way to increase its speed ??
I have CPU- AMD Ryzen 5600H and
GPU - NVIDIA RTX 3050


Some help will be really appreciated


I checked some nvidia encoding and decoding things from there official website and tried many things from there but always stuck at some error


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Need available FFMPEG transition effect commands for single video file in android ?
16 juillet 2019, par Gopinathan BI am able to produce Fade In & Fade Out transition effect for single video file. I am fail to get other transition effects for single video. Some of the transition commands are not correct. There is no official documentation to do.
This will fade in video for 5 sec in start.
"-y", "-i", masterVideoFile!!.absolutePath, "-acodec", "copy", "-vf", "fade=t=in:st=0:d=5", outputFile.absolutePathThis will fade out video for 5 sec in end.
"-y", "-i", masterVideoFile!!.absolutePath, "-acodec", "copy", "-vf", "fade=t=out:st=$finalTime:d=5", outputFile.absolutePathI need video to transition from Right to Left, Left to Right, Top to Bottom & Bottom to Top and start playing video afterwards.