Recherche avancée

Médias (91)

Autres articles (51)

  • 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 (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • 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 (9525)

  • for Low-latency playback 1080p video, ffplay isn’t as smooth

    5 janvier 2015, par csjl

    for Low-latency playback 1080p video, i test the ffplay and vlc, find ffplay isn’t as smooth, delay around 500ms, vlc relatively smooth performance, latency around 800ms.

    ffplay.exe udp: //224.0.0.1: 1234 -fflags nobuffer
    
vlc udp: //@224.0.0.1: 1234 --network-caching = 0

    I would like to ask : why ffplay not play smoothly, how to solve it.

  • Detect video frame offset to sync videos the smart way

    29 août 2018, par Fabien Biller

    When recording video, we know that it has for instance 60 fps. But do we also know, what the video offset is ? We do know that the time difference between frames is 1/60 s. But when did it start as an absolute value ? The problem comes into play when trying to sync two videos of the same scenery, for instance stereo with different cameras that were not frame-locked. My idea is to interpolate two - audio synced - 60 fps videos to for instance 180 fps to then change them to 60 fps again to hopefully have matching frames. This does not work, according to my test. A better solution would be to know the time difference between frames to interpolate based on difference, for instance using a deep learning algorithm.

    How can ffmpeg help me here ?

  • Next drawtext clears the previous one ffmpeg

    27 août 2021, par Макс Шульдинер
    ffmpeg.exe -i ffmpeg_inputs/zheltiy_chelik.mp4  -vf "[in]drawtext=fonts/Temporarium.otf:text='r':fontcolor=orange:fontsize=100:x=(w-text_w)/2+0:y=0:enable='between(t,0, 11)', drawtext =fonts/Temporarium.otf:text = 'r':fontcolor=orange:fontsize=100:x=(w-text_w)/2+20:y=0:enable='between(t,11, 22)', drawtext =fonts/Temporarium.otf:text = 'r':fontcolor=orange:fontsize=100:x=(w-text_w)/2+40:y=0:enable='between(t,22, 33)'[out]" ffmpeg_outputs/test2.mp4 -y 


    


    There is such a ffmpeg line. Its meaning is to draw a letter 20 pixels to the right of the current position of the word every 11 seconds, and in this way "write the word". But here's the problem - when the second letter starts to render, it overwrites the first, and the third, respectively, overwrites the second. The string seems to have prescribed [in] and [out] but does not help, maybe someone has ideas

    


Navigation