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Autres articles (41)

  • 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 (4384)

  • Is seeking to specific frames of an MJPEG video faster than doing the same for an h.264 file ?

    9 février 2018, par David Parks

    I am recording video and will need to seek to a specific frame in the video quickly and randomly.

    I can record the video in MJPEG or h.264 compression standards.

    I understand that MJPEG produces individual jpegs and produce larger file sizes than h.264, and h.264 compresses across multiple frames of video.

    Does this difference mean that I will get faster seek times when
    seeking to a random location in the file using ffmpeg or gstreamer
    programmatically ?

    Will the MJPEG allow the frame-seek operation to reduce the IO requirements when reading just 1 frame from a video file ?

  • ffmpeg video length is 0 when concatenating pictures

    10 novembre 2019, par iftach freund

    I’m trying to concatenate individual frames, but the video length is 0 and all frames seemingly play at once. Iv’e tried increasing the video length in ffmpeg and changing the frame rate.

    os.system('ffmpeg -f concat -i List_tb.txt -c copy output.mp4')
    
os.system("ffmpeg -i output.mp4 -filter:v fps=fps=120 output_temp.mp4")
    
os.system("ffmpeg -i output_temp.mp4 -filter:v setpts=8.0*PTS final.mp4")

    also the frame rate is the amount of frames

  • MP4 - get current subtitle text

    20 février 2019, par murrdpirate

    I’m trying to find a way to grab the current subtitle in an MP4 file. I see that ffmpeg can extract all subtitles into an .srt file, but it would be useful for me to just grab the current subtitle based on the current timestamp of a video being played. Especially useful if it can be done with python. This would be akin to opencv and moviepy, where I can extract the current frame as an image based on the current timestamp of the video.

    I see a lot of libraries that work with subtitle .srt files (e.g. pysrt) but none that access individual subtitles from a playng mp4 file.

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