Recherche avancée

Médias (0)

Mot : - Tags -/alertes

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (54)

  • La file d’attente de SPIPmotion

    28 novembre 2010, par

    Une file d’attente stockée dans la base de donnée
    Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
    Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • HTML5 audio and video support

    13 avril 2011, par

    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
    The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
    For older browsers the Flowplayer flash fallback is used.
    MediaSPIP allows for media playback on major mobile platforms with the above (...)

Sur d’autres sites (4534)

  • audio of second video is missing after combining video

    2 avril 2021, par Captain_Zaraki

    I am trying to concat 2 videos but audio of second video is missing -

    


    ffmpeg -i  1.mp4 -i 1.mp4 -filter_complex '[0]scale=1280:720,setsar=1[v0];[1]scale=1280:720,setsar=1[v1];[v0][v1]concat=n=2:v=1:a=0' -vsync 2  output.mp4


    


    if I set a=1 then it is giving an error-

    


    [Parsed_setsar_3 @ 0x564e387d0340] Media type mismatch between the 'Parsed_setsar_3' filter output pad 0 (video) and the 'Parsed_concat_4' filter input pad 1 (audio)
[AVFilterGraph @ 0x564e3888fac0] Cannot create the link setsar:0 -> concat:1
Error initializing complex filters.


    


  • I want to reduce video file size but still have a good video quality, how should I write the code using ffmpeg ?

    9 décembre 2019, par Inibuat Maengame

    First of all, I’ve downloaded some videos to watch, and each file has more than 500MB file size. But due to the vast amount of videos I have at the moment, my 3 external hard drives are crying.
    Up till today, I’ve been using BENCOS to reduce the size...
    I always set the preset to very slow, codec h264, profile : high, and the mode is (probably) fixed bitrate on 736kbps.
    With those settings,
    I was able to reduce the size from 400-600MB into 100-110MB with acceptable video quality.
    But, since BENCOS has stopped its service since ages ago, I’ve been trying FFmpeg lately.

    Using those same settings, -crf 22, -preset veryslow, profile:high, the file size doesn’t really reduce that much... from 500MB to 200MB-ish with a much lower video quality compared to BENCOS.

    How are you guys able to reduce the file size by a huge margin compared to the original but still retain the quality using FFmpeg..?
    what commands I should put into the FFmpeg to get a result as good as BENCOS..?

    Thanks in advance...

  • MoviePy : Concatenating video clips causes weird glitches in final video

    16 mai 2022, par JohnSmithy1266

    Is there a way to successfully always patch up any clips together in such a way that prevents weird glitches ? I put together a .mp4 from smaller .mp4 files and I got a final video with weird glitches. I am running Python 3.6.1 on Windows 10 through Sublime Text 3. I used MoviePy to do the concatenation.

    



    The code :

    



    from moviepy.editor import VideoFileClip, concatenate_videoclips
import os.path

path = "C:/Users/blah/videos/out/"

cliparray = []

for filename in os.listdir(path):
    cliparray.append(VideoFileClip(path + filename))

final_clip = concatenate_videoclips(cliparray)

final_clip.write_videofile(path + "concatenatedvideo.mp4", codec = "libx264")


    



    The weird glitches :

    



      

    1. One of the clips turns into a 3x3 grid of smaller clips.

      2. 


    2. Another has the audio not lined up with the video

      3. 


    3. Another is sped up faster than what was normal.

      4. 


    


Navigation