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Médias (91)

Autres articles (92)

  • 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 (...)

  • Pas question de marché, de cloud etc...

    10 avril 2011

    Le vocabulaire utilisé sur ce site essaie d’éviter toute référence à la mode qui fleurit allègrement
    sur le web 2.0 et dans les entreprises qui en vivent.
    Vous êtes donc invité à bannir l’utilisation des termes "Brand", "Cloud", "Marché" etc...
    Notre motivation est avant tout de créer un outil simple, accessible à pour tout le monde, favorisant
    le partage de créations sur Internet et permettant aux auteurs de garder une autonomie optimale.
    Aucun "contrat Gold ou Premium" n’est donc prévu, aucun (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

Sur d’autres sites (7206)

  • avformat/matroskaenc : Fix BlockGroup size calculation

    20 avril 2019, par Andreas Rheinhardt
    avformat/matroskaenc : Fix BlockGroup size calculation

    The earlier code included the size of the BlockGroup's length field and
    
the EBML ID in the calculation of the size for the payload and ignored
    
the size of the  duration's length field. This meant that Blockgroups
    
corresponding to packets with size 2^(7n) - 17 - n - i, i = 0,..., n - 1,
    
n = 1,..., 8 (i.e. 110, 16364, 16365, 2097130..2097132, ...) were written
    
with length fields that are unnecessarily long.
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
    
Signed-off-by : James Almer <jamrial@gmail.com>
    • [DH] libavformat/matroskaenc.c

  • What Is The Best Frame Size, Bitrate, and Framerate to Concat 3 Different Videos Together ?

    29 mars 2020, par wongz

    I want to concat three videos together, but they have different (1) frame size (2) bitrate, and (3) framerates.

    To avoid glitches, I am resampling each clip on a consistent basis.

    1) What is a good basis - bitrate , frame size, frame rate - to resample all the files ?
    I’m looking for best quality and don’t mind bigger file size or longer times.

    enter image description here

  • ffmpeg decompilation of image frames producing images of much more size

    7 octobre 2013, par user2007454

    I have extracted image frames using ffmpeg from a video(video a) deleted alternate frames and applied compression on the remaining frames and again made a video (video b) ffmpeg -i "input_file%d.png" "outputfile.3gp" my question here is ideally the size of video b should be much lesser than video a as it contains lesser number of frames those are also the compressed one but to my utter surprise video b is much larger in size from video a, to have a check I have extracted the frames from video b the frames are way larger in size around 10 times the original size, if anybody can help me out or explain such behavior from ffmpeg library and how we could control such behavior, thanks in advance.

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