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Médias (1)
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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (32)
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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 -
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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Les formats acceptés
28 janvier 2010, parLes 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 (...)
Sur d’autres sites (6920)
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Revision 7e515c4637 : fix AVX & AVX2 detection fixes issue #790 which resulted in a SIGILL on OpenBSD
15 janvier 2015, par James ZernChanged Paths :
Modify /vpx_ports/x86.h
fix AVX & AVX2 detectionfixes issue #790 which resulted in a SIGILL on OpenBSD
code is mostly from libwebp, based on the following :
https://software.intel.com/en-us/articles/how-to-detect-new-instruction-support-
in-the-4th-generation-intel-core-processor-familyChange-Id : Ida7c1a18261e98c05ed9c662068140be407ec107
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How to set fps in python decord library ?
5 octobre 2020, par Sathish Kumarpackage link : https://github.com/dmlc/decord


I am using decord to extract frames and it does a good job, by default it uses video fps.
Lets say i need to extract frame at 0.2 fps.


example : i have a video at 48 seconds and its fps is 30.
when i extract i get 1440 frames


But, I need to specify the fps like 0.2
so , the output should be 10 frames.


PS. In ffmpeg, we can specify the fps while extracting. I am asking in the same way.


My code :


from decord import VideoReader
from matplotlib import pyplot as plt

vr = VideoReader("nature.mp4")
vr._avg_fps = 0.2 ##Not worked
for i in range(len(vr)):
 frame = vr[i].asnumpy()
 plt.imsave(f'{name}_Frame_{i}.jpg',frame)



Help appreciated


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Can this be done in Handbrake or FFMPEG
2 décembre 2022, par TakinJust wonder this could be done in Handbrake or FFMPEG.
Any other transcoding software in Windows or MacOS would also be acceptable.



I have many family videos, shooted with DSLR/action cam/phone.
And the files are really huge without transcoding them.
There are something I would like to have,



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Metadata should be all captured. Using Handbrake would not be able to capture the information of the used device. Also, the capture date will become the transcoding date which is definitely unacceptable.
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I would like to transcode them into HEVC (H.265)
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I need to batch transcode them since there're a lot of videos.









If it's possible (not neccessary), I would also like to have the filename as "YYYYMMDD_HHMMSS".



I think both 1 and 3 are quite frequently asked questions.
This thread will be quite useful to all people who are looking for the same answer as well.
Thanks a lot !


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