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Autres articles (28)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 (6612)

  • How to convert raw video formats to mp4/mov with CLI based tool something like ffmpeg ?

    29 octobre 2022, par A_Mishra

    Want to convert raw video formats like braw, redcode and canon raw format into mp4/mov videos with command line tool such as ffmpeg. There are dedicated softwares for conversion like DaVinci Resolve for braw format, but I am looking for something to use as service and use it within my code thus looking for CLI based solution.

    


  • Extracting frame out of video based on time in seconds

    20 avril 2024, par Vicky

    I'm developing a web-based video editing tool where users can pause a video and draw circles or lines on it using canvas. When a user pauses the video, I retrieve the current playback time in seconds using the HTML5 video.currentTime property. I then send this time value along with the shape details to the server. On the server-side, we use FFmpeg to extract the specific paused frame from the video. The issue I'm encountering is a frame mismatch between the one displayed in the browser and the one generated in the backend using FFmpeg.

    


    I've experimented with various approaches for this process.

    


    Extracting frame based on time. Example : in this case time is 3.360 second.

    


    


    ffmpeg -i input.mp4 -ss 00:00:03.360 -frames:v 1 frame.jpg

    


    


    Converting time to frame number using the following logic : Math.round(video.currentTime * fps)

    


    


    ffmpeg -i input.mp4 -vf "select=eq(n,101)" -vsync vfr frame.jpg

    


    


    


    ffmpeg -i input .mp4 -vf "select='lt(t,3.360)lt(3.360-t,1/31.019)',setpts=N/(31.019TB)" -vsync 0 frame.jpg

    


    


    The challenge I'm facing is that sometimes the frame I see in the browser at the pause time doesn't match the one generated in the backend using FFmpeg. How can I solve this problem ? If it's an issue with currentTime, are there any other approaches I can try ?

    


  • Revision 513157e093 : Scatter-based scantables. This gains about 0.2% on derf, 0.1% on hd and 0.4% on

    25 mars 2013, par Ronald S. Bultje

    Changed Paths : Modify /configure Modify /vp9/common/vp9_entropy.c Modify /vp9/decoder/vp9_dequantize.c Scatter-based scantables. This gains about 0.2% on derf, 0.1% on hd and 0.4% on stdhd. I can put this under an experimental flag if wanted, just trying to get my patch queue in shape. Change-Id : (...)

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