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Autres articles (71)

  • 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 (9835)

  • Synchronization between camera video and inertial sensor data

    14 janvier 2013, par Dima Bobby

    I need to :

    write an Android real-time data logging application employing camera video and polling other sensor (accelerometer, gyro, compass) data at high rates e.g. 50 Hz and writing this information into file. As these data will later be used for navigation, precise synchronization between different data is extremely important.

    What I have done :

    implemented sensor polling in native code, so that less Java execution overhead is employed. Nonetheless, camera encoding is still in Java, for this I tried MediaRecorder and MediaCodec. In both cases data from inertial sensors and camera are not synchronized between each other, there is a varying delay of about 400ms and this is inacceptible. Moreover, I am pretty sure that encoding is HW accelerated. Now, to reach my goal I am considering about going for native implementation of video encoding using either OpenCV or FFMPEG (native code is expected to be more efficient).

    EDIT : I have even tried saving the image uncompressed as pgm file, but this way the image data get really huge in size and the FPS is really low, so we are losing data. I suspect that file writing process is the bottleneck in this case. Is there an efficient way to save raw data to file achieving high FPS ?

    Any hints what I should go for to achieve my goal ? I am using Android Jelly Bean with Asus Transformer TF700 Infinity.

    Regards,
    Dmitriy

  • Accessing data of fmmpeg while processing in node.js

    25 juin 2019, par newCOder2137ssh

    Im converting a .mp4 file with ffmpeg to a .mp3 file.I am only able to access this data after ffmpeg finished, but I want to access it while it is processing.

    I am currently using fluent-ffmpeg to process the video. This is how I process it :

    proc = new ffmpeg({
    
    source: stream
    
})
    
proc.withAudioCodec('libmp3lame')
    
    .toFormat('mp3')
    
    .seekInput(35)
    
    .output(audio)
    
    .run();

    I can access the data after ffmpeg fiinished with proc.on('end', ()) but I’d like to access the data while it’s processing and make a reeadable Stream out of it. Does someone know how to do that ?

  • Create a channel system using FFMPEG and FFserver

    27 mars 2014, par Dnaso

    I have been looking all over the internet but cannot find the answer, am I able to create a channeling system with FFMPEG and ffserver ? what I want to do is give users the ability to dynamically add their ip address and start restreaming their cameras (from a predefined list). Would I have to open different instances or can I dynamically add feeds to ffserver, or is this not a viable option ?

    Any help is appreciated,
    Thank you.

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