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Autres articles (12)

  • 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 (...)

  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

Sur d’autres sites (3970)

  • Optimised FFMPEG parameters

    2 novembre 2016, par FlyingAtom

    How do I optimize the following to the specifications. The current one has random lags & pause while streaming.

    ffmpeg -re -y -i FILENAME.mp4 -vcodec libx264 -b:v 600k -filter:v yadif -ac 1 -ar 44100 -f flv "rtmp ://..."

    Video Format

    1. Maximum 720p (720 x 1280) resolution, at 30 frames per second. (or 1
      key frame every 2 seconds).
    2. You must send an I-frame (keyframe) at least once every two seconds
      throughout the stream..
    3. Recommended max bit rate is 4000 Kbps.
    4. The accepts H264 encoded video and AAC encoded audio only.

    Advanced Settings

    1. Pixel Aspect Ratio : Square.

    2. Frame Types : Progressive Scan.

    3. Audio Sample Rate : 44.1 KHz.

    4. Audio Bitrate : 128 Kbps stereo.

    5. Bitrate Encoding : CBR.

    My file is in mp4 generated with iMovies. Thanks in advance !

  • lavfi/delogo : take SAR into account

    1er juillet 2013, par Jean Delvare
    lavfi/delogo : take SAR into account

    When interpolating, weights are based on relative distances, which
    
assume square pixels. If a non-1:1 sample aspect ratio is used, it
    
should be taken into account when comparing distances, because the
    
human eye and brain care about the picture as it is displayed, not
    
stored.
    

    Signed-off-by : Jean Delvare <khali@linux-fr.org>
    
Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavfilter/vf_delogo.c

  • Adding unique RGB color watermark per video frame with FFmpeg

    8 juin 2016, par Dustin Kerstein

    I’d like to add a unique watermark onto each unique video frame in an h264 mp4 video. More specifically, I want the watermark to be a X by X pixel square solid 8-bit RGB color, and each color watermark should be unique across all frames in the video (up to the theoretical 24 bit max of 16.7 million colors/frames).

    Is this possible to do programatically using FFmpeg filters (or another tool) without requiring a photo for each possible color watermark ?

    If not, assuming I already have the full set of 1029 solid color photos downloaded from http://www.solidbackgrounds.com, can anyone think of an easy way to watermark a video with <= 1029 frames using FFmpeg ?

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