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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-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

  • Supporting all media types

    13 avril 2011, par

    Unlike 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 (...)

  • 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 (...)

Sur d’autres sites (6170)

  • Improve webm quality when accelerating video

    12 août 2016, par Andres

    I have a .webm video that I want to accelerate to timelapse it. My original .webm video is 1280x720 and has a very good quality, but when I accelerate it with FFMPEG the quality is really bad (even when the resolution stays the same). This is the command I’m using :

    ffmpeg.exe -i test.webm -c:v libvpx-vp9 -filter:v "setpts = 0.1 * PTS" out.webm -threads 3

    If I try the same with a .mp4 video the quality remains the same as the original video, but with .webm it just seems to destroy the video quality. I tried changing the bitrate with -minrate 1M -maxrate 1M -b:v 1M but doesn’t improve anything.

    This is the video I’m converting.

  • How to "SAVE FOR WEB" a JPG image

    25 juin 2019, par Gabriel Katzberg

    I have high quality images 8mp+ and need to reduce their size as much as I can without loosing too much quality. Photoshop and the similar have a "save for web" features that works great.

    How do I accomplish this with ffmpeg ? Images are JPG

    Actually, I need the images to be cropped from the center.

    so

    original image : 1200x800, quality : excelent
    — > cropped images : 300x300 from center of original image, quality : excelent

    > save for web cropped images, quality : save for web

    what are the ffmpeg commands I need to run ?

  • Preserve id3 tag with ffmpeg concat and copy multiple transport streams

    15 avril 2019, par Sflagg

    I have 10 mpeg transport streams (6 second segments) that I manually downloaded. I have combined them using this ffmpeg command -

    ffmpeg -f concat -i list.txt -c copy output.ts

    But the MPEG PES that contains the ID3 time stamps is not copied. The original segment files contain the ID3 but the output does not. I have verified in Wireshark by looking for mp2ts.pid==0x102 or mpeg-pes.stream==0xbd.

    I find this in the original segments but not in my output

    stream : private-stream-1 (0xbd)

    I would like to retain the ID3 tags in the output file. How would I accomplish that ?

    I have tried adding metadata mapping options with no success.

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