Recherche avancée

Médias (0)

Mot : - Tags -/tags

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

Autres articles (100)

  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • 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) (...)

  • 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 (9167)

  • Swift Get video stream duration

    14 mars 2019, par Jordane H

    I have a problem with a video which has an audio stream longer than the video stream according to ffmpeg command line :

    ffmpeg -i input.mp4 -vcodec copy -an -f null -   <--- video stream duration
    
ffmpeg -i input.mp4 -acodec copy -an -f null -   <--- audio stream duration

    For example, the the first command gives a list of data including the stream duration of 3.64 and the second 3.80.

    I need to retrieve the video stream duration on Swift. I tried this :

    guard let videoAssetTrack = asset.tracks(withMediaType: AVMediaType.video).first else {
    
    return
    
}
    

    
let duration: CMTime = videoAssetTrack.timeRange.duration
    
let durationTime = CMTimeGetSeconds(duration)

    It gives me 3.80, not the value I was expecting.

    Thank you for your attention, I hope you can help me on this case.

  • ffmpeg open rtsp stream and keep encoded until a frame is read

    20 avril 2022, par ghylander

    I have an ip camera which is live streaming 24/7.

    


    I want to open the rtsp stream with ffmpeg on a client, but since continuously decoding the stream is cpu-intensive, I want to keep the stream encoded until I specifically request for a frame

    


    How can I achieve this (preferable in python, but C is ok too) ?

    


    Using ffmpeg-python, I can open a stream and keep it raw, but how do I make sure that when I request a frame from the encoded stream, I start reading the frame from the beginning of the frame ?

    


  • Extracting programs from dvb mux which begin later in stream

    28 novembre 2016, par John Allsup

    On DVB-T, some channels do not run 24h/day. If I save the entire mux using e.g. vlc (I do this on Windows due to Linux not liking my TV stick), I can play back the resulting .ts file with vlc, and select programs, and if I skip, say, 1hr in, and switch to the program (once started), I can watch it ok. If, however, I run ffmpeg on the file, it reports the program as having only one stream, of type ’Unknown : none’, and cannot extract the stream.

    The reasoning is that if I wish to capture the first program from a channel which comes on at, say, 7pm, I want the dump of the mux to begin before 7pm.

    Any thoughts on how to extract the program stream ?

Navigation