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Autres articles (22)
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Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...) -
Other interesting software
13 avril 2011, parWe don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
We don’t know them, we didn’t try them, but you can take a peek.
Videopress
Website : http://videopress.com/
License : GNU/GPL v2
Source code : (...) -
Gestion générale des documents
13 mai 2011, parMédiaSPIP ne modifie jamais le document original mis en ligne.
Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)
Sur d’autres sites (6112)
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How can i transform dvb subtitles into text format using FFMpeg within a live streaming or how can i optimize the dvb burning process ?
5 décembre 2018, par alexsuaI am working on a hls transcoder from any format to HLS and I need to encode multiple subtitles with the format "dvbsub" at the same time with the purpose of being selected by a client who interprets the m3u8 HLS playlist.
The main problem is that burning each dvbsub into a live video stream in this way :
"-filter_complex "[0:v][0:s:0]overlay[v0];[0:v][0:s:1]overlay[v1];[0:v][0:s:2]overlay[v2];......"
is a very CPU intensive task. (I have 8 or more dvbsub in the same stream).
Does Anyone know how to transform each dvbsub into a text format (webvtt for example) or if there is a way to optimize the process ? (I tried to perform this burning process with NVIDIA gpu but I have not achieved any improvement)
I read about OCR programs which can do the task but after days of research i still dont know how to do that.
Thanks in advance.
EDIT : The input is a live UDP signal. I need to do the transformation on the fly.
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doc/developer.texi : refine the "contributing code" section
9 novembre 2022, par Anton Khirnov -
FFmpeg, timecode audio input, overlay
9 mai 2015, par WaydeGood Morning !
So i have been playing around with FFMpeg the last few days it seems rather amazing. I do have one challenege i am trying to over come. I like FFMpeg because it is command line and i will be able to script most of the things i want to do.
Here is my Challenge, We run the same shows week after week, and timecode is used for ALL our automation, lighting, camera cues, sound and so on. I want to be able to record the shows with the timecode burnt in, keep in mind this audio timecode input does start and stop during the shows, therefor it cannot be part of the video stream.The Setup, Windows 7, Blackmagic DeckLink SDI Capture card, timecode in via Line In.
Now, i dont mind if this overlay of timecode is a post process after being recorded as the audio input of timecode can be recorded as an audio stream and removed once the burn in has been done.
I have searched and searched but yet to find a simple easy way to do this.
Thank you.