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Autres articles (71)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Use, discuss, criticize

    13 avril 2011, par

    Talk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
    The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
    A discussion list is available for all exchanges between users.

  • 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.

Sur d’autres sites (7066)

  • Fast method for adding text watermark to only first 25 frames using ffmpeg

    4 février 2023, par Sarkar

    I am looking to add a text watermark to the first 25 frames of a video using ffmpeg. I have already tried the following command but it takes a long time as it processes the entire video :

    


    ffmpeg -i input.mp4 -vf "drawtext=fontfile=arial.ttf: text='Watermark': fontsize=24: fontcolor=white: x=(w-text_w)/2: y=(h-text_h)/2: enable='between(n,0,24)'" -c:a copy output.mp4


    


    I need the encoding to be fast as I plan to make this change on the fly when streaming the video to the user. Is there a way to do this efficiently, such that the rest of the video remains unedited ?

    


  • Most time effective web format for converting h.265

    29 avril 2020, par IamRichter

    So, I configured my ipcams to send event videos to a FTP server that saves it locally, and run a script that convert every video into something that can be opened in a generic browser, then send it to a S3 (I am using pyftpdlib + my modifications).

    



    But i don't think that I am doing it in the most effective way. On my computer (a fairly good laptop) it usually takes half the video playtime to convert into a mp4 using a generic ffmpeg command that i simple copy and paste from stackoverflow. I tried to look up the documentation, but i simple don't have the multimedia background to understand it.

    



    What would be the most time effective format and how to convert a raw h.265 video to it ?

    


  • How to add a subtitle stream with date/time (or timestamp) in ffmpeg

    4 juillet 2024, par Eelco

    How can I add an input source to ffmpeg so I can add the current datetime/timestamp/ISO-time as a seperate subtitle stream ? E.g. something like this :

    


    ffmpeg -i video.mp4 -i audio.mp3 -i  -map 0:v -map 1:a -map 2:s -c:v copy -c:a copy -c:s srt -f flv output.flv


    


    The idea is that ffmpeg always takes the current datetime for the specific frame that ffmpeg encodes at that moment, and not the (static) datetime when the ffmpeg process was started.

    


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