Recherche avancée

Médias (1)

Mot : - Tags -/epub

Autres articles (20)

  • 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 (5381)

  • ffmpeg : Combine png frames with transparent background into a video and merge with an image

    15 avril 2023, par andyts93

    I'm trying to combine multiple png frames into a video with ffmpeg, keeping the transparency, to then combine it with an image.
The png video comes with a black background so when i try to combine it with an image, the image is completely overlayed by the black background, how can I keep the transparency ?

    


    Here's the command to combine the PNGs :

    


    ffmpeg -y -i src/tmp/%d.png -c:v libx264 -vf fps=25 -pix_fmt yuva420p land.mov

    


  • ffmpeg mp4 cut from correct point | without encode

    3 mars 2018, par sword1st

    I’m using this this command for cut my mp4 video :

    ffmpeg -i clip.mp4 -ss 00:00:25 -to 00:01:20 -c copy cutted.mp4

    But there is a problem with this code. My "cutted" clip has black video for a couple seconds and it’s have sync problem on editing software. When i tweak the first parameter -ss like 00:00:24 ... 00:00:23 .... 00:00:26 etc when i found the right position it doesn’t have any black frame or sync problem. I want to learn how can i learn all of this correct times for my video ? I don’t know what should i call these points. Gop or anything else. Is there any solution built-in ffmpeg to learn this times so i can cut them without any corruption ? Thanks !

  • Add padding with ffmpeg to videos increases file size, why ?

    12 mars 2023, par try2getsmarter

    I need to add padding to mp4 video files (since tv changes aspect ratio on playback) and I simply can do this with -pad option of ffmpeg.

    


    The output is ok for me, but I see that most of the video files increase about 25%-30% in file size.

    


    ffmpeg -i in.mp4 -preset slow -vf "pad=1920:1080 :(1920-iwmin(1920/iw,1080/ih))/2 :(1080-ihmin(1920/iw,1080/ih))/2" -c:v h264 -c:a copy out_fhd.mp4"

    


    Is there a way to preserve the input quality and have the same file size ? As the black bars contain no information I had the expectation that there is a lossless mode to take the already H264 encoded stream and just add blocks with black pixels.

    


Navigation