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Carte de Schillerkiez
13 mai 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (78)
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Encoding and processing into web-friendly formats
13 avril 2011, parMediaSPIP automatically converts uploaded files to internet-compatible formats.
Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
All uploaded files are stored online in their original format, so you can (...) -
MediaSPIP Player : problèmes potentiels
22 février 2011, parLe lecteur ne fonctionne pas sur Internet Explorer
Sur Internet Explorer (8 et 7 au moins), le plugin utilise le lecteur Flash flowplayer pour lire vidéos et son. Si le lecteur ne semble pas fonctionner, cela peut venir de la configuration du mod_deflate d’Apache.
Si dans la configuration de ce module Apache vous avez une ligne qui ressemble à la suivante, essayez de la supprimer ou de la commenter pour voir si le lecteur fonctionne correctement : /** * GeSHi (C) 2004 - 2007 Nigel McNie, (...) -
Supporting all media types
13 avril 2011, parUnlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)
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Python get Audio/Video frames separately from video file
3 juillet 2016, par AlvaroAVWhat i’m trying to do :
Hi !
I’m trying to store the Video and Audio information from a video file. I would like to store video frames and audio frames separately in different variables.
My intention is to manage video/files and do some actions with the audio and video frame list, but to do what I’m plannign to do I need to store this audio/video frames separately. I’ve read a lot of questions in StackOverflow about python and audio/video managing.
Most people recommend to use
OpenCV
orffmpeg
to manage videos. I saw some scripts using these libraries to get video(only video) frames, but none of them are getting audio, most of them are just getting video frames and save them as RGB images. I also check some scripts where people get audio frames from a mp3 file, but I’m not sure if you can do that in a video fileMost important thing to me is to know the best way to manage video and audio separately. I’m not looking for people to do my code, just asking to point me in a good direction.
One of the things I’m trying to do is to send this information via socket, but as I said I need the audio and video frames to be in separated variables (yes, i’m wondering about an stream app, but that’s not the only thing I’m trying to do)
I know I should give more information, and maybe show some code, but I don’t have any concret code I tried some things, but I’ve never been capable to separate audio and video. I know that each format has his own encryption, and at the end I decided to use "mp4" as video format but I don’t know neither if this is the best format for what I’m trying to do.
Resume :
Is openCV the best way to manage video and audio separately ?
Wich is the easiest way to separate video and audio frames ? Is it possible ?
Wich is the best documentation I should read to learn about video/audio management ?
I would like to do the things with my own code, and use in the less way possible openCV or other libraries.
My "basic" idea is to get a "list" of audio and video frames, and then I would like to do some operations, but right now I can’t find the best way for me to manage a vide using python. I even wonder if could be possible to manage a video as raw data
I need to know wich is the best library to manage videos using python, for me the best library, will be the one that allows me to manage the videos more "freely"
I’ve already checked :
I’ve read too many questions on this theme, the most recent are :
How to extract audio from video file
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video streaming - mp4 file (x264) - and skip to location
14 mars 2011, par RaoulPreviously I was using apache to serve .flv files which an embedded player on an intranet page was playing.
Is it possible to stream mp4 files (x264 encoded) in a similar manner ? Are there any open source scripts/solutions for doing proper streaming (e.g. people can skip to skip to a part of the video without having to download the parts they've skiped over) ?
If anyone is doing someting similar I'd love to hear from them
Thanks
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Encoding a video in FFmpeg to X264 and have it playable in Quicktime
7 mai 2013, par illuI am wondering which command line settings i need to explicitly set (or avoid) to make a video encoded into x264 (in the mp4 format) using ffmpeg by default playable in Quicktime. I find that a number of the predefined preset files work for me but some of them won't, for example I can't get any of the lossless ones to work and I'm interested in those ones as well. For example libx264-lossless_max.ffpreset will encode my video but it's only playable in VLC, not in Quicktime. In Quicktime the video stays black. I know Perian is an option but I want my file to be playable without installing Perian. Thanks for your help.