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  • Les images

    15 mai 2013
  • Submit bugs and patches

    13 avril 2011

    Unfortunately a software is never perfect.
    If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
    If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
    You may also (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (5742)

  • how to make ffmpeg process large files faster ?

    12 octobre 2019, par Hakim Douib

    I am using ffmpeg to view video for dash player. But the videos used are more than 1GB, and the server has
    60 GB of RAM
    Ten cores

    The server takes more than 50 hours to process a video.
    The method I use is by separating each operation thread to make it faster ,
    and the files in the end have size between 2 to 5 GB

    dash params variable

    VP9_DASH_PARAMS="-tile-columns 4 -frame-parallel 1"

    cmd :

    ffmpeg  -i  vid_origenal.mp4 -c:v libx265  -s 1920x1080 -b:v 3000k -keyint_min 150 -g 150 ${VP9_DASH_PARAMS} -an -f webm -dash 1  1080.webm >/dev/null 2>&1 &

    I use this for all qualities

    thanks

  • avformat/mp3 : large id3 tags break concatenated file detection

    24 avril 2015, par wm4
    avformat/mp3 : large id3 tags break concatenated file detection
    

    If the file size is much larger than what is indicated in the XING
    header, the demuxer assumes it’s a concatenated file, and throws away
    the (presumably) incorrect duration information. Unfortunately, this
    also triggers if the id3 tags are very large (embedded pictures and
    such). Then the half-baked heuristic not only breaks the duration
    display, but also gapless audio.

    Fix it by subtracting the size of the headers (the check is off by some
    bytes, but that doesn’t matter at all). Note that there could be an
    arbitrary amount of tags _after_ the mp3 data, but hopefully these are
    not too large to trigger the heuristic in practice.

    Also add a warning when this happens.

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>

    • [DH] libavformat/mp3dec.c
  • Laravel FFMPEG, converting large video on smaller EC2 instances

    30 août 2019, par Jeremy Layson

    I’m using ffmpeg on a laravel project (uploaded on AWS Elastic Beanstalk using t3.micro for now). My problem is that my budget can only go for t3.small but sometimes, I’ll have to process large video files like 2GB or even 5GB.

    My current set-up can process smaller files like 30MB and convert them to M3U8 (HLS) so there’s no problem with the set-up. The problem arises when I’m trying to upload and convert a 2GB file as my EC2 instance only has 1GiB of memory.

    Is there a way for FFMPEG (pbmedia/laravel-ffmpeg) to "chunk" the conversion so that it uses less memory ? Doesn’t matter if it takes double the time to convert.