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Autres articles (49)

  • 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" (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Supporting all media types

    13 avril 2011, par

    Unlike most software and media-sharing platforms, MediaSPIP aims to manage as many different media types as possible. The following are just a few examples from an ever-expanding list of supported formats : images : png, gif, jpg, bmp and more audio : MP3, Ogg, Wav and more video : AVI, MP4, OGV, mpg, mov, wmv and more text, code and other data : OpenOffice, Microsoft Office (Word, PowerPoint, Excel), web (html, CSS), LaTeX, Google Earth and (...)

Sur d’autres sites (5715)

  • ffmpeg how to concacenate 2 videos in alternating order every X seconds (blinking effect) [closed]

    27 octobre 2020, par aj6

    I'd like to use ffmpeg to stitch together a video in the following manner : I'd like to take X number of frames or seconds from 2 (or more) videos, one by one, and output a new file composed of all frames of original videos, but in a new order (not concatenated one after the other, but rather by X frames or seconds).

    


    To clarify - let's say there are 2 videos, each 1 minute long. I'd like to concatenate these 2 videos second by second (for example), using 1 second from the first video, then 1 second from the next video, with the resulting output, the 3rd file, being 2 minutes long and containing all the information from the original vids, but played back in a "blinking" manner - a second or X number of frames from each vid.

    


    Just to be sure it's clear : Let's say I have 2 videos, 10 seconds each, I'd like them to be joined in the following manner : (1 second from vid#1), (1 second from vid#2), (1 second from vid#1), (1 second from vid#2) etc. until both files' end. (Assume the duration of both vids is same).

    


    I understand how to do it if I need to simply concatenate files one after another, or even switch from one to the next a few times with an overlay, but I was unable to find ANYTHING about joining videos frame by frame or X number of seconds for the entire duration of the vid, only solutions for switching video overlay a couple of times, putting in time stamps by hand.

    


    Any help is much appreciated. Thank you.

    


  • avcodec/mpeg12dec : Limit maximum A53 CC size

    21 septembre 2020, par Michael Niedermayer
    avcodec/mpeg12dec : Limit maximum A53 CC size

    This is more than 10 times the size of the largest i found. And also alot more
    
than our encoder could handle (our encoder is limited to max 31)
    
Without any limit megabyte+ sized blocks can be reallocated millions of times.
    
Sadly the SCTE-20 spec does not seem to contain any hard limit directly, so this limit here
    
is arbitrary
    

    Fixes : Timeout (25sec -> 152ms)
    
Fixes : 25714/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_MPEG2VIDEO_fuzzer-5713633336885248
    

    Found-by : continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
    
Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
    • [DH] libavcodec/mpeg12dec.c

  • How do hot switch video files in ffmpeg ? [closed]

    16 mars 2012, par sherman

    I want to switch videos, while one other playing. When I load new video few times, applicaton crashes, how do it correctly ?

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