Recherche avancée

Médias (1)

Mot : - Tags -/epub

Autres articles (111)

  • Encoding and processing into web-friendly formats

    13 avril 2011, par

    MediaSPIP automatically converts uploaded files to internet-compatible formats.
    Video files are encoded in MP4, Ogv and WebM (supported by HTML5) and MP4 (supported by Flash).
    Audio files are encoded in MP3 and Ogg (supported by HTML5) and MP3 (supported by Flash).
    Where possible, text is analyzed in order to retrieve the data needed for search engine detection, and then exported as a series of image files.
    All uploaded files are stored online in their original format, so you can (...)

  • 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 (...)

  • 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) (...)

Sur d’autres sites (6899)

  • Merge videos with different start times and show them on a grid

    1er août 2017, par shamaleyte

    I have multiple video files of a conference call. However, each participant joined the call at a different time, which resulted in the fact that each video file has a different start time offset values.

    Video   Start Time
    
------------------
    
Video1  00:00
    
Video2  00:10
    
Video3  01:40

    My purpose is to play back this conference. However, I did not record the conference as 1 video, it is recorded with multiple video files, instead.
    How do I stitch these videos ?

    There is also a paid solution to merge video fragments to a single clip – this will make the client-side much simpler. But can I do it for free ?

    The expected outcome is to have one video showing three videos on a grid.
    When ffmpeg stitches the videos, it should consider their start time values properly so that the videos are played accordingly.

  • Anomalie #4167 (Fermé) : Script JVS affiché lors de la redirection après un login réussi en mode p...

    11 août 2018, par Guillaume Fahrner

    Tout est dans le titre/tweet :

    https://twitter.com/blablachet/status/1028013586935963650
    https://twitter.com/blablachet/status/1028024047009976327

    Avec le mode parano, le script Javascript utilisé pour réaliser la redirection lors d’un login réussi n’est plus exécuté mais échappé et affiché dans ’message_ok’.

  • avcodec/videotoolboxenc : fix encoding frame crash on iOS 11

    13 août 2019, par sharpbai
    avcodec/videotoolboxenc : fix encoding frame crash on iOS 11

    On iOS 11, encoding a frame may return error with log
    
"Error encoding frame 0", which means vtenc_output_callback
    
is called with status=0 and sample_buffer=NULL. Then the
    
encoding session will be crashed on next callback wether or not
    
closing the codec context.
    

    Let us look through the link below introducing VTCompressionOutputCallback,
    

    https://developer.apple.com/documentation/videotoolbox/vtcompressionoutputcallback?language=objc
    

    "status=0" (noErr) means compression was successful.
    
"sampleBuffer=NULL" means the frame was dropped when compression
    
was successful (status=0) or compression was not successful (status !=0).
    

    So we should not set AVERROR_EXTERNAL on "status=0" and "sample_buffer=NULL"
    
as it is not a error.
    

    The fix is that we only set AVERROR_EXTERNAL with status value non zero.
    
When sample_buffer is NULL and status value is zero, we simply return
    
with no other operation.
    

    This crash often occurs on iOS 11 for example encoding 720p@25fps.
    

    Signed-off-by : sharpbai <sharpbai@gmail.com>
    
Signed-off-by : Rick Kern <kernrj@gmail.com>
    • [DH] libavcodec/videotoolboxenc.c

Navigation