Recherche avancée

Médias (29)

Mot : - Tags -/Musique

Autres articles (53)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

Sur d’autres sites (8360)

  • FFmpeg : concat multiple videos, some with audio, some without

    13 février 2020, par Tommy Adeniyi

    I’m trying to concatenate 5 videos where the first and last have no audio track. I have tried the following command :

        ffmpeg -i 1-copyright/copyright2018640x480.mp4 -i 2-openingtitle/EOTIntroFINAL640x480.mp4 -i 3-videos/yelling.mp4 -i 4-endtitle/EOTOutroFINAL640x480.mp4 -i 5-learnabout/Niambi640.mp4 -filter_complex "[0:v:0] [0:a:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] [3:v:0] [3:a:0] [4:v:0] [4:a:0] concat=n=5:v=1:a=1 [v] [a]" -map "[v]" -map "[a]" output_video.mp4

    and I get the output error :

        Stream specifier ':a:0' in filtergraph description [0:v:0] [0:a:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] [3:v:0] [3:a:0] [4:v:0] [4:a:0] concat=n=5:v=1:a=1 [v] [a] matches no streams.

    I know the first and last videos have no audio but I dont know how to write the statement to ignore the audio track in those videos. I have tried removing the [0:a:0] but that just throws another error :

       Stream specifier ':v:0' in filtergraph description [0:v:0] [1:v:0] [1:a:0] [2:v:0] [2:a:0] [3:v:0] [3:a:0] [4:v:0] [4:a:0] concat=n=5:v=1:a=1 [v] [a] matches no streams.

    It doesnt make sense and Im kinda lost.

  • How to merge two videos if one of them has filters with FFmpeg ? [duplicate]

    19 mars 2021, par Karp

    I have three MTS videos. One is just a plain MTS, however I added a fade-in and fade-out filters using FFmpeg to the second and the third one. Now I want to merge them and get one big MTS video. When I run the command I get the video, but it is broken (the part of the video, where no fade-in or fade-out was applied can’t be played (it is the first video of my 3 videos)). How can I fix this problem ?

    


    PS. I try to merge three videos without re-encoding (using -c copy)

    


  • -to value smaller than -ss error while clipping videos with ffmpeg

    16 mai 2018, par dusa

    I am trying to clip videos using frame information, I first convert the frame to time since ffmpeg uses this notion to clip videos.

    The problem is for shorter videos, it gives the error :

    -to; value smaller than -ss; aborting.

    But in reality, this is false. For example, I get an error even with these values :

    0:0:47.4 -to 0:0:47.21  (format -> hh:mm:ss.frame)

    Can anyone tell me how I can fix this ?

    The video frame rate is 25 fps and the command structure I use is :

     os.system('ffmpeg -i ' + inputvideo + '.mp4' + ' -qscale:v 2 -vf scale=427:240 ' + ' -ss '+ str(fhours) + ':' + str(fminutes) + ':' + str(fseconds) + '.' + str(fframes) + ' -to ' + str(lhours) + ':' + str(lminutes) + ':' + str(lseconds) + '.' + str(lframes) + ' ' + outputvideo + '.avi')

Navigation