
Recherche avancée
Médias (1)
-
Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (39)
-
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 (...) -
Des sites réalisés avec MediaSPIP
2 mai 2011, parCette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page. -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (4902)
-
How can I figure out the optimized number of parallel running encoding jobs with the x264 encoder library
30 janvier 2024, par DaniI'm batch converting hundreds of videos to mp4 and trying to optimize my method.



I have written a node script, which spawns FFMPEG processes to convert the videos.



From my understanding both FFMPEG and the libx264 encoder are already optimized for multithreaded support. I'm using the default threading option in the encoder.



I'm trying to find the optimal number of FFMPEG spawned processes I should make. There seems to be a balance between having too many and slowing down the encoding of all jobs vs too few process going through the job queue too slowly.



I'm also wondering if dedicating a specific number of threads to each encode job would help rather than using the default setting ?



For my setup I'm on a dated 12-core Mac Pro with 24-threads, though this question is about finding the optimal balance in general.


-
doc/APIchanges : fix typo in version number
22 mai 2020, par Anton Khirnov -
VideoCapture() returns None in opencv & install opencv with ffmpeg
16 décembre 2017, par Wentai ChenSystem : UBUNTU 16.04
Python version : 3.5I would like to use
cv2.VideoCapture()
function to process mymp4
file. However, when I run the script below, I always get a result ofNone
, so I am not able to continue my work after.import cv2
video_cap = cv2.VideoCapture('demo.mp4')
ret,frame = video_cap.read()
print(ret,frame)
result: False,NoneBy searching a lot I realized the problem :
opencv
is not properly installed withffmpeg
, so that the video function inopencv
does not work.However I didn’t find a efficient tutorial on how to properly install
opencv
. I wonder if anyone could help. Thank you !