Recherche avancée

Médias (29)

Mot : - Tags -/Musique

Autres articles (68)

  • 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 ;

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • 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 (6286)

  • fate/vcodec : Fix test requirements

    23 avril 2022, par Andreas Rheinhardt
    fate/vcodec : Fix test requirements

    This automatically fixes the requirements of the fate-seek-vsynth*
    
tests (e.g. 16 of the 49 such tests are now automatically disabled
    
if the scale filter is disabled).
    

    Signed-off-by : Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
    • [DH] tests/fate/vcodec.mak

  • Cross fading 2 videos segments using ffmpeg when number of frames are not known before hand

    5 avril 2016, par Hero Roma

    I am a newbie trying to cross fade 2 videos using ffmpeg and the stackoverflow answer. But in my case I do not know the length of the video or the number of the frames. I want to start the fade out in the first video in the last 5 frames and fade in the first 5 frames. I am able to do the fade in on the second video but I cannot figure out how to do the fade out in the last 5 frames when I don’t know the duration or the number of frames.

    The "-i" option is supposed to be able to extract that information but I cant seem to pipe it to the next block there.

    ffmpeg -i 1.mp4 -i 2.mp4 -f lavfi -i color=black -filter_complex \
    
"[0:v]format=pix_fmts=yuva420p,fade=t=out:st=4:d=1:alpha=1,setpts=PTS-STARTPTS[va0];\
    
[1:v]format=pix_fmts=yuva420p,fade=t=in:st=0:d=1:alpha=1,setpts=PTS-STARTPTS+4/TB[va1];\
    
[2:v]scale=960x720,trim=duration=9[over];\
    
[over][va0]overlay[over1];\
    
[over1][va1]overlay=format=yuv420[outv]" \
    
-vcodec libx264 -map [outv] out.mp4

  • why reducing the resolution a percentage doesn't reduce the video the same proportion using ffmpeg ?

    14 mars 2023, par user44551

    I'm using this command :

    &#xA;

    -y -r -i $inVideoUri -movflags faststart -c:v libx265 -s $videoResolution -c:a copy -preset ultrafast $outPutUri"&#xA;

    &#xA;

    However, if "videoResolution" is a 50% of the original video resolution, the resulting file size is not 50% of the original one. I assume there are some headers or metadata added during the process but I would like to know how to estimate the final video size.

    &#xA;

Navigation