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Autres articles (54)

  • Encodage et transformation en formats lisibles sur Internet

    10 avril 2011

    MediaSPIP transforme et ré-encode les documents mis en ligne afin de les rendre lisibles sur Internet et automatiquement utilisables sans intervention du créateur de contenu.
    Les vidéos sont automatiquement encodées dans les formats supportés par HTML5 : MP4, Ogv et WebM. La version "MP4" est également utilisée pour le lecteur flash de secours nécessaire aux anciens navigateurs.
    Les documents audios sont également ré-encodés dans les deux formats utilisables par HTML5 :MP3 et Ogg. La version "MP3" (...)

  • 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 (...)

Sur d’autres sites (5142)

  • ffmpeg PNG to mp4 - Black screen

    29 mai 2018, par ilciavo

    I can create a mpg video using this line

    ffmpeg -f image2 -i 100%03d0.png movie.mpg

    But If I try creating an mp4 video I get a video with a black screen.

    ffmpeg -f image2 -i 100%03d0.png movie.mp4

    My directory with figures looks like :
    1000010.png,1000020.png,...1001260.png

  • Fill output video with black screen in case of missing the input stream or switch input UDP stream to another source

    13 mai 2018, par Omar Mahmoud

    I am using FFMPEG to record a streams from UDP sources, but unfortunately once the input stream missed, the ffmpeg stop recording, then append video to file once the stream observed by the server again.

    And as these recording files is time based so, I need fill video with black screen in case of missing the input stream.

    ffmpeg -i ’udp ://224.12.12.1:4000’ -t 00:45:00 -vcodec copy -acodec copy -f mpegts /record/eEs1526947.ts

    How can I do this, either by ffmpeg or other CLI based service/process ?

  • How to crop bottom of video followed by removing black borders ?

    9 mai 2018, par pmdaly

    I have video where there is a static bar on the bottom 50 pixels and also a black boarder around the actual content. I want to remove the bottom 50 pixels then use cropdetect to auto trim the border.

    I have the following to remove the border

    dims = $(ffmpeg -i "$video$ -t 1 -vf cropdetect -f null - 2>&1 | awk '/crop/{print $NF}' | tail -n1)
    

    
ffmpeg -i "$video" -vf "$dims" "$video_out"

    I’m not sure how to add the step to remove the bottom 50 pixels prior to this.

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