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Autres articles (48)

  • 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 (10766)

  • VFR input + h264_nvenc - output bitrate is based on initial frame rate when I want it to be time based [closed]

    4 août, par hedgehog90

    I have an HLS stream produced from a live VFR source in ffmpeg.
The source consists of blocks of varying frame rate. The first 30 minutes might be 24fps, the next 30 minutes @ 60fps.
Although it is not standard for HLS to be VFR, it appears to playback perfectly well on various platforms I've tested.

    


    When I use the libx264 encoder with -crf + -maxrate parameters, I can get my desired bitrate per stream despite potentially wild frame rate fluctuations.

    


    But when I use the h264_nvenc encoder with -cq + -maxrate parameters (and practically every configuration I could think of), the bitrate is all dependant on the initial frame rate of the input stream.
For example, segment duration is set to 5 seconds... the first 5 seconds of the input are 30fps, and the next 5 seconds are 60fps, the resulting output will produce 1 segment at the desired bitrate, the next at double the desired bitrate.

    


    I have tried every configuration to try and trick the encoder into working differently, but it appears this might be a built-in limitation.

    


    I've searched for answers, I've asked the chatbots, I can't find a definitive solution, besides converting the input stream to a constant frame rate (which is not an option).

    


  • Zoom and Moving based on audio information in FFMPEG

    19 décembre 2019, par Mattstir

    I recently wondered if it is possible to zoom or move things in FFMPEG based on an audio source.

    I already played around with complex filters as they allow some audio visualization but didn’t really manage to move/zoom things based on sound. See good examples of complex filters used for audio visualization at : https://hhsprings.bitbucket.io/docs/programming/examples/ffmpeg/audio_visualization/index.html

    My current situation is that i have multiple inputs which one of should react on sound/maybe even on special frequency’s.

  • Revision d8983f0dd7 : Global Motion block-based Uses block-based motion fields with ransac to find tr

    12 février 2015, par Spencer Egart

    Changed Paths :
     Modify /vp9/encoder/vp9_global_motion.c


     Modify /vp9/encoder/vp9_global_motion.h


     Modify /vp9/encoder/vp9_motionmodel.c


     Modify /vp9/encoder/vp9_motionmodel.h



    Global Motion block-based

    Uses block-based motion fields with ransac to find transformation between
    frames.

    Change-Id : I6293fbb690cdad854a1140fb6af76b326abfe964

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