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  • 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" (...)

  • Other interesting software

    13 avril 2011, par

    We don’t claim to be the only ones doing what we do ... and especially not to assert claims to be the best either ... What we do, we just try to do it well and getting better ...
    The following list represents softwares that tend to be more or less as MediaSPIP or that MediaSPIP tries more or less to do the same, whatever ...
    We don’t know them, we didn’t try them, but you can take a peek.
    Videopress
    Website : http://videopress.com/
    License : GNU/GPL v2
    Source code : (...)

Sur d’autres sites (8326)

  • Deobfuscation Redux : JavaScript

    20 juin 2011, par Multimedia Mike — Reverse Engineering, deobfuscation, javascript, programming

    Google recently released version 12 of their Chrome browser. This version adds a new feature that automatically allows deobfuscating obfuscated JavaScript source code.

    Before :



    After :



    As a reverse engineering purist, I was a bit annoyed. Not at the feature, just the naming. This is clearly code beautification but not necessarily deobfuscation. The real obfuscation comes not from removing whitespace but from renaming variable and function names to terse 1- and 2-letter identifiers. True automated deobfuscation — which entails recovering the original variable and function identifiers as well as source code comments — is basically impossible.

    Still, it makes me wonder if there is any interest in a JavaScript deobfuscator that operates similar to my Java deobfuscator which was one of the first things I published on this blog. The general idea is automatically replace function names with random English verbs (since functions correspond to actions) and variable names with random animal names (I decided "English nouns" encompassed too broad a category of words). I suspect the day that someone releases a proprietary multimedia codec in a pure (though obfuscated) JavaScript format is that day that I will try to accomplish this, if it hasn’t been done already.

    See also :

  • How to remove 6 seconds of both video and audio every 20 seconds with ffmpeg

    15 juillet 2018, par Adam Estel

    I tried to figure a way to to remove 6 seconds of both video and audio every 20 seconds.This is my code :

      ffmpeg -y -i "input.mp4" -vf "select='not(lt(mod(t,20),6))',setpts=N/FRAME_RATE/TB,setpts=PTS-STARTPTS" -af "aselect='not(lt(mod(t,20),6))',asetpts=N/SR/TB,asetpts=PTS-STARTPTS" -preset superfast out.mp4

    But it resulted not that I want,the wrong timings being selected.
    I don’t know what did i do wrong here ?
    Sorry for my bad english.Thank you

  • Out of memory on ffmpeg when converting to H265

    18 août 2017, par Lion

    I’ve a bunch of video files, mostly H264. To save storage, I wrote a batch script, that converts all of them to H265 using ffmpeg. Problem : Some files cause ffmpeg to use ALL my memory (24 GB). Then it crashes (cause it try to allocate even more RAM), which stops the converting process.

    I think that these files are corrupt in some kind. Because with other files, it works well with low memory consumption. Now I want to reject those broken ones, so that unattended converting is possible.

    How is it possible to detect such corruption ? Can ffmpeg do this, or is a third party tool required ?

    My ffmpeg call

    set crf=20
    
set codec=265
    

    
ffmpeg -hide_banner -i "!fullSourcePath!" -c:v libx%codec% -crf %crf% "%targetPath%\!targetFileName!"

    mkvalidator can’t help

    mkvalidator says that a corrupt file is valid :

    mkvalidator.exe "V:\Filme\_LegacyFormat\22 Jump Street.mkv"
    
........................................................................................................................
    
WRN0D0: There are 5306 bytes of void data..
    

    
mkvalidator 0.5.0: the file appears to be valid
    
        file created with libebml v1.3.0 + libmatroska v1.4.1 / mkvmerge v6.9.1 ('Blue Panther') 64bit built on Apr 18 2014 18:23:38

    eac3to331 can’t help, too

    I found the tool eac3to331, which has a check flag. But it gave me no errors, although the tested file seems corrupt (cause my PC to crash after several minutes running ffmpeg)

    eac3to.exe -check "V:\Filme\_LegacyFormat\22 Jump Street.mkv"
    
MKV, 1 video track, 2 audio tracks, 1 subtitle track, 1:51:57, 24p /1.001
    
1: h264/AVC, English, 1920x808 24p /1.001 (240:101)
    
2: DTS, German, 5.1 channels, 1509kbps, 48kHz
    
3: DTS, English, 5.1 channels, 1509kbps, 48kHz
    
4: Subtitle (SRT), German
    
v01 Extracting video track number 1...
    
a02 Extracting audio track number 2...
    
a03 Extracting audio track number 3...
    
s04 Extracting subtitle track number 4...
    
Video track 1 contains 161039 frames.
    
eac3to processing took 1 minute, 26 seconds.
    
Done.

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