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Autres articles (104)

  • 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 a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (7756)

  • Revision 3b2e73b9a4 : Remove tx cache and speed up tx size selection 1. The RD scores obtained during

    29 juillet 2015, par Yunqing Wang

    Changed Paths :
     Modify /vp9/encoder/vp9_context_tree.h


     Modify /vp9/encoder/vp9_encodeframe.c


     Modify /vp9/encoder/vp9_rdopt.c



    Remove tx cache and speed up tx size selection

    1. The RD scores obtained during the tx size selection were stored in the
    tx cache, and used to help make the tx decision for the following frames.
    This wasn’t used anymore in VP9 encoder. Recovered the related decision
    making code from 1.5+ years ago, and borg tests didn’t show any quality
    gain. This patch removed it to lower the complexity.

    2. An optimization was done after the above refactoring. If the tx_mode
    is not TX_MODE_SELECT, we only need to test the chosen tx size instead
    of all posible tx sizes. This gave a 1.5% average speed gain at speed 2,
    and a 1% average speed gain at speed 3.

    Change-Id : Id8cd650e066a8cef33829d8c15388a8138adc78c

  • Merge commit ’6877537ff321136cf78ab03b8b91e6b6f218db5b’

    30 juillet 2015, par Michael Niedermayer
    Merge commit ’6877537ff321136cf78ab03b8b91e6b6f218db5b’

    * commit ’6877537ff321136cf78ab03b8b91e6b6f218db5b’ :
    
  hmac : add missing version bump and APIChanges entry
    

    Conflicts :
    
	libavutil/version.h
    

    version.h is not changed as the code has been added 2 years ago in FFmpeg
    

    See : 82ef67016ef731268ab7b8e91139bd5f16edc991
    
Merged-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] doc/APIchanges

  • Creating screenshot/image from Twitch stream

    22 juillet 2015, par danL

    I’ve messed around with FFmpeg some time ago and remember using it to fetch preview images for video files. My question is, is this the correct path to be going down for the purpose of getting images from a Twitch live stream ? What I need to do is get a screenshot of the end of a Twitch stream (the final scoreboard in a video game) and save that screen shot.

    I’m pretty sure I could get the code written, but I want to make sure there isn’t a better way of accomplishing this task because it seems like it would have gotten easier over the years. If there are any other libraries/APIs that would be more efficient than executing FFMpeg all the time.

    I hope there’s been some improvement in PHP video handling, but I’ve searched around and can’t find anything.

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