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Autres articles (42)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP 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 (...)

  • Contribute to documentation

    13 avril 2011

    Documentation is vital to the development of improved technical capabilities.
    MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
    To contribute, register to the project users’ mailing (...)

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

Sur d’autres sites (7858)

  • Youtube-dl and Shell speed

    7 août 2016, par JJ The Second

    So I’ve been experimenting with youtube-dl on Ubuntu 14 recently and I should say downloading is well fast even I have a 1GB Ubuntu LAMP but when it comes to triggering FFMPEG and deleting process hangs for a good time. Even worked with -k but as soon as FFMPEG process is completed, it takes time to respond. I do understand this is a big subject but I’d really like to hear your thoughts, what amazes me is how a website like thisis running in less than a second ? Here is what I have,

    [youtube] UxxajLWwzqY: Downloading webpage
    
[youtube] UxxajLWwzqY: Downloading video info webpage
    
[youtube] UxxajLWwzqY: Extracting video information
    
[info] Writing video description metadata as JSON to: /var/www/html/download/Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO].info.json
    
[download] Destination: /var/www/html/download/Icona Pop - I Love It (feat. Charli XCX) [OFFICIAL VIDEO].m4a
    
[download] 100% of 2.73MiB in 00:00
    
[ffmpeg] Correcting container in "/var/www/html/download/title.m4a"
    
[ffmpeg] Destination: /var/www/html/download/title.mp3
    
Deleting original file /var/www/html/download/title.m4a (pass -k to keep)
    youtube-dl "http://www.youtube.com/watch?v=UxxajLWwzqY" --write-info-json  --extract-audio --audio-format mp3  -o "/var/www/html/download/%(title)s.%(ext)s"

    I really don’t understand how this is done so fast ? Is there anything I’m missing ?

    Thanks for your time.

  • Are there any technical reasons that MP4 is more popular than Webm ?

    1er juin 2019, par dprogramz

    Not looking for opinions. I’m searching for data.

    As it is now, I want to become a webM evangelist. However, I assume there are some actual technical reasons why mp4 is preferred over webm in the bigger picture. I want to know them so I can be accurate in my assessments.

    I’m working on developing a broadcast video messaging graphics engine (think chyron) and using the Chromium engine like OBS does for messaging. So far the results have been excellent.

    One of the best features I’ve found is using webm for video. I should note I am using small (640x480 max) videos as graphics that are on top off a larger full HD video.

    Not only does it seem to have a better compression:quality ratio than mp4 for my use case, the most important thing is that it has full alpha support, which allows for excellent layering of video objects on top of each other in the HTML DOM, in real time, with no noticable performance hits.

    Aside from it’s predecessor, FLV, I can’t think of another high quality, high compression codec that also supports alpha. I feel like you are stuck using pro-res 4444 or the ancient animation codec to reliable distribute video with an alpha.

    So, that said, are there technical reasons why webM isn’t more adopted than mp4 ?

    I already know the obvious, that there is dedicated hardware to decode mp4. But, is there any technicality that would prevent a hardware webM decoder ? I really want to understand more what the benefits of mp4 are over webM, which i assume is why it is more widely used than webM.

    Thanks !

  • 403 Forbidden error occurs on macOS, ffmpeg

    7 juillet 2023, par LinuxPenguin99

    I got a problem with using ffmpeg on mac.

    


    I tried 3 ways.

    


      


    1. Download with MacBook Pro M1 Max Ventura 13.4.1 which installed ffmepg with Homebrew.

      


      2. 


    2. Download with MacBook Pro Intel Ventura 13.4.1 which installed ffmepg with Homebrew.

      


      3. 


    3. Download with Windows 10 Pro Desktop which use ffmpeg that sourced by 7z zip file.

      


      4. 


    


    I use the same command. But only windows desktop could download successfully.

    


    Mac command : ffmpeg -i "link" -c copy filename.mp4

    


    Windows command : ffmpeg.exe -i "link" -c copy filename.mp4

    


    Mac environments occurs HTTP error 403 Forbidden, (access denied) error.

    


    How can I solve this problem ?

    


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