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Autres articles (58)

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

Sur d’autres sites (9194)

  • JavaCv take time to create video from images

    8 septembre 2014, par Sohaib Ahmed

    I used the Javacv in android. In AsyncTask I convert the sequence of images into video but it take time.
    I run application user click on record button then handler take the images of my app after one second.When user click on the stop. Handler stop the work and AsyncTask creating the video from sequence of images but it take time. I do not understand why it take time. Any way to make it fast ?
    FFmpegFrameRecorder is used to create the video from sequence of images.

    Even I run my app just for 1 minute after I stop it take 5-10 minute to create the video from images.

  • 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 ?

    


  • FFMPEG overlay filter at specific time/frame

    24 avril 2018, par Pedro Romano Barbosa

    I’m trying to insert an overlay video into another one at a specific time or frame. For that purpose i’m using this command :

    ffmpeg -y -i INPUT1 -i INPUT2 -filter_complex \"overlay=enable='between(t,1,2)'\" -c:v prores OUTPUT

    The problem is that when playing the resulting file, the overlay plays fine and at the time requested, but the main video gets freezed in the first frame and the whole video is chopped.

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