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Autres articles (50)

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

Sur d’autres sites (6129)

  • Encode a movie with Unicode filename in Windows using Popen

    15 avril 2013, par Tetsu

    I want to encode a movie through IO.popen by ruby(1.9.3) in windows 7.
    If the file name contains only ascii strings, encoding proceed normally.
    But with unicode filename the script returns "No such file or directory" error.
    Like following code.

    #-*- encoding: utf-8 -*-
    
command = "ffmpeg -i ü.rm"
    
IO.popen(command){|pipe|
    
  pipe.each{|line|
    
    p line
    
  }
    
}

    I couldn't find whether the problem causes by ffmpeg or ruby.
    How can fix this problem ?

  • Extract specific frames of youtube video without downloading video

    22 janvier 2023, par Kashish Arora

    I need to extract specific frames of an online video to work on an algorithm but I don't want to download the whole video because that would make it highly inefficient.

    


    For starters, I tried working with youtube videos. I can download whole of the video using youtube-dl in this way :

    


    ydl_opts = {'outtmpl': r'OUTPUT_DIRECTORY_HERE',}
with youtube_dl.YoutubeDL(ydl_opts) as ydl:
    ydl.download([url])


    


    And then I can capture individual frames.

    


    I need to avoid downloading the whole video. After some research, I have found that ffmpeg might help me do this. I found no way to download just the frames so if this is not possible, the second option is that I can download specific portions of the video. One such example in linux is here but I couldn't find any solution for python.

    


    What is a good way to download just the frames, or portions of videos (in python) without downloading the entire thing ?

    


  • Extract the middle frame of a video in Python using ffmpeg ?

    10 juin 2014, par ensnare

    I have a collection of video files for which I’d like to generate thumbnails. How can I extract the middle frame of the video in Python ?

    If I execute :

    ffmpeg -i /tmp/0.mts

    I get a line returned to the shell that says :

    Duration: 00:00:04.49, start: 1.016689, bitrate: 25234 kb/s

    Maybe I could extract the timestamp after the duration and somehow divide that by 2 to get the middle frame timestamp, and extract that ?

    If I’m recursing through a large collection of videos, is there a way to keep ffmpeg "open" without the overhead of opening/closing it to identify each file ?

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