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  • Encoding and processing into web-friendly formats

    13 April 2011, by

    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 (...)

  • Qu’est ce qu’un masque de formulaire

    13 June 2013, by

    Un masque de formulaire consiste en la personnalisation du formulaire de mise en ligne des médias, rubriques, actualités, éditoriaux et liens vers des sites.
    Chaque formulaire de publication d’objet peut donc être personnalisé.
    Pour accéder à la personnalisation des champs de formulaires, il est nécessaire d’aller dans l’administration de votre MediaSPIP puis de sélectionner "Configuration des masques de formulaires".
    Sélectionnez ensuite le formulaire à modifier en cliquant sur sont type d’objet. (...)

  • Monitoring de fermes de MediaSPIP (et de SPIP tant qu’à faire)

    31 May 2013, by

    Lorsque l’on gère plusieurs (voir plusieurs dizaines) de MediaSPIP sur la même installation, il peut être très pratique d’obtenir d’un coup d’oeil certaines informations.
    Cet article a pour but de documenter les scripts de monitoring Munin développés avec l’aide d’Infini.
    Ces scripts sont installés automatiquement par le script d’installation automatique si une installation de munin est détectée.
    Description des scripts
    Trois scripts Munin ont été développés :
    1. mediaspip_medias
    Un script de (...)

On other websites (8949)

  • FFMpeg video recorder - Android

    30 April 2014, by Ganesh

    I’ve used ffmpeg video recorder for android.

    it has used videocodec as MPEG4.

    private int videoCodec = avcodec.AV_CODEC_ID_MPEG4;

    video is showing android and iphone device. but video not playing on browser only audio playing on browser.

    I’ve checked HTML5 video requires MP4 videos with H264 video codec and AAC audio codec

    Chrome doesn’t display html5 video but plays audio

    I’ve changed videocodec as below

    private int videoCodec = avcodec.AV_CODEC_ID_H264;

    My question is,

    when i use Mpeg4, video croping time is less.
    But when i use H264 , video croping time takes more.

    How to reduce the video croping time when use H264 or anyother videocode support to browser and minimum processing time for video croping.?

  • how to encode mp4 from movie content for wowza streaming?

    15 July 2014, by lng0415

    i want to encode to mp4(h.264 codec) from avi,mpg..... for wowza streaming.

    encode mp4 using ffmpeg, jave.

    encode is success, but wowza streaming is not work on android and iphone OS.
    (it’s play successfully on my PC)

    please help me.

    thank you.

    ps. i’m sorry. i’m poor at english.

    [using jave]

    File source = new File("D://temp/20140704_163504.mp4");
    
File target = new File("D://temp/jave.mp4");
    

    
AudioAttributes audio = new AudioAttributes();
    
audio.setCodec("libmp3lame");
    
audio.setBitRate(new Integer(64000));
    
audio.setChannels(new Integer(1));
    
audio.setSamplingRate(new Integer(22050));
    

    
VideoAttributes video = new VideoAttributes();
    
video.setCodec("h263");
    
video.setBitRate(new Integer(320000));
    
video.setFrameRate(new Integer(15));
    
video.setSize(new VideoSize(400, 300));
    

    
EncodingAttributes attrs = new EncodingAttributes();
    
attrs.setFormat("mp4");
    
attrs.setAudioAttributes(audio);
    
attrs.setVideoAttributes(video);
    
Encoder encoder = new Encoder();
    
encoder.encode(source, target, attrs);

  • iOS Libavcodec - Trim and convert a video

    14 July 2015, by AnujAroshA

    In my iOS project, I am trying to take an .mp4 video file, cut out a small clip in the middle of the file, and convert the output to .mov file. I am using libavcodec to do this.

    I built the FFmpeg libraries for iOS using this script and added to my project.

    The code I am using to trim and convert the video file is this.

    The issues with final output of the file are:

    1. When I copy the output from the iPhone to my mac, the video meta data for duration and video dimensions are blank. If I do the same for the original, I get the video length and dimensions correctly. I must not be creating the video meta data on the new video correctly.

    2. The frame rate on the outputted video appears to be wrong. I expect to see e.g. 250 frames over 10 seconds (25fps), but instead I see 250 frames over 4 seconds, then only the last frame for the remaining 6 seconds.

    3. The code should seek to 100s in the video before starting trimming. Instead, the code appears to crop the video starting at the beginning.

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