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Medias (1)
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The Great Big Beautiful Tomorrow
28 October 2011, by
Updated: October 2011
Language: English
Type: Text
Other articles (62)
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Publier sur MédiaSpip
13 June 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 -
Soumettre améliorations et plugins supplémentaires
10 April 2011Si vous avez développé une nouvelle extension permettant d’ajouter une ou plusieurs fonctionnalités utiles à MediaSPIP, faites le nous savoir et son intégration dans la distribution officielle sera envisagée.
Vous pouvez utiliser la liste de discussion de développement afin de le faire savoir ou demander de l’aide quant à la réalisation de ce plugin. MediaSPIP étant basé sur SPIP, il est également possible d’utiliser le liste de discussion SPIP-zone de SPIP pour (...) -
Les formats acceptés
28 January 2010, byLes 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 (...)
On other websites (9629)
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Motion Vectors and DC coefficients from MPEG4 stream
9 October 2013, by LampisI need to extract information about motion vectors and DC coefficients from an MPEG4 video. I've searched relevant sites and topics and I found that a good solution is to work with the code of ffmpeg codec. Especially the ff_print_debug_info function in libavcodec/mpegvideo.c calculates relevant information.
However, I'm new on the C/C++ field and if there is any example code that describes or explains how to extract MVs and DC coefficients that would be very helpful.
In the more recent version I use (FFmpeg 0.10.2 from http://ffmpeg.org/download.html) there is another file mpeg4videodec.c. Is there any chance to retrieve the needed information by this code?
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FFMPEG change Tone Frequency (Pitch Audio)
16 September 2022, by dazzafactHow can I change the Tone frequency.
This Example only pitches it by keeping the old tone frequency and only decrease the length of File.


For Example, I have a constant 100 Herz tone (as mp3) and I want it to change 90 Herz


ffmpeg -i 100h.mp3 -af atempo=100/90 90h.mp3



This Example doesn't work for me, it sounds the same


inputfile Mp3

outputfile Mp3

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Live stream videos on YouTube with ffmpeg?
30 January 2021, by ManuservusWhat the program should do:


It should download a video from an URL.


Then put the video into a streaming interface (on the right side there should be the live chat from YouTube, in the middle, there should be the downloaded video).


Next stream it live to YouTube.


The process should repeat endless times.


Download video from URL —> Stream it live to YouTube in a streaming interface -> repeat the whole process.


Is this even possible in Python? If yes how?


I would appreciate any help!


PS: The stream should run smoothly without a break. That means: As soon as a video is finished, the next comes straight away.