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Autres articles (41)

  • Diogene : création de masques spécifiques de formulaires d’édition de contenus

    26 octobre 2010, par

    Diogene est un des plugins ? SPIP activé par défaut (extension) lors de l’initialisation de MediaSPIP.
    A quoi sert ce plugin
    Création de masques de formulaires
    Le plugin Diogène permet de créer des masques de formulaires spécifiques par secteur sur les trois objets spécifiques SPIP que sont : les articles ; les rubriques ; les sites
    Il permet ainsi de définir en fonction d’un secteur particulier, un masque de formulaire par objet, ajoutant ou enlevant ainsi des champs afin de rendre le formulaire (...)

  • 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

  • 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 (...)

Sur d’autres sites (6515)

  • avcodec/v4l2_context : send start decode command after dynamic resolution change event

    4 janvier 2022, par Ming Qian
    avcodec/v4l2_context : send start decode command after dynamic resolution change event

    Fixes decoding of sample https://streams.videolan.org/ffmpeg/incoming/720p60.mp4
    
on RPi4 after kernel driver commit :
    
staging : bcm2835-codec : Format changed should trigger drain
    

    Reference :
    
linux/Documentation/userspace-api/media/v4l/dev-decoder.rst
    
    "A source change triggers an implicit decoder drain, similar to the
    
     explicit Drain sequence. The decoder is stopped after it completes.
    
     The decoding process must be resumed with either a pair of calls to
    
     VIDIOC_STREAMOFF and VIDIOC_STREAMON on the CAPTURE queue, or a call to
    
     VIDIOC_DECODER_CMD with the V4L2_DEC_CMD_START command."
    

    Reviewed-by : Andriy Gelman <andriy.gelman@gmail.com>
    
Signed-off-by : Ming Qian <ming.qian@nxp.com>
    • [DH] libavcodec/v4l2_context.c

  • avcodec/v4l2_context : don't reinit output queue on dynamic resolution change event

    4 janvier 2022, par Ming Qian
    avcodec/v4l2_context : don't reinit output queue on dynamic resolution change event

    Reference :
    
linux/Documentation/userspace-api/media/v4l/dev-decoder.rst
    
    "During the resolution change sequence, the OUTPUT queue must remain
    
     streaming. Calling VIDIOC_STREAMOFF() on the OUTPUT queue would
    
     abort the sequence and initiate a seek.
    

         In principle, the OUTPUT queue operates separately from the CAPTURE
    
     queue and this remains true for the duration of the entire
    
     resolution change sequence as well."
    

    Reviewed-by : Andriy Gelman <andriy.gelman@gmail.com>
    
Signed-off-by : Ming Qian <ming.qian@nxp.com>
    • [DH] libavcodec/v4l2_context.c

  • ffmpeg : is there a simple way to edit the video resolution, but keep all audio and subtitles

    21 avril 2022, par Arkeen

    I would like to lower video resolution - usually from .mkv files - but to keep all possible audio tracks (might be only one, might be several) and subtitles (might be none, might be several) from the original one. I also would like to keep as many encoding parameters as I can from the original video file (especially those I do not understand).

    &#xA;

    I am still new to ffmpeg : at first the idea seemed simple, but after many attempts, it seems it is more complex than that. Do I have to use the -filter_complex option ? It seems to be an overkill (or overcomplex) for what I thought to be an easy conversion, but I might be wrong.

    &#xA;

    I tried to combine -vf scale=-1:720 with -c copy -map 0, which gave me an error that I now understand, but I am stuck with the next step.

    &#xA;

    Any lead on to achieve that ? Could it be done with ffmpeg only or would I need a script ?

    &#xA;

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