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  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

  • 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 (...)

  • 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 (9458)

  • FFmpeg : create data streams in MP4 container

    28 mars 2022, par Soeren

    Is there a way to make FFmpeg create data streams in MP4 or Quicktime (.mov) containers ? I have tried -attach ... (works fine for Matroska containers, but not MP4/MOV) or -codec bin_data, but to no avail.

    


    -attach ... technically creates streams with codec type "attachment", which are different from data streams. And while FFmpeg isn't smart enough to directly create data streams in containers where attachment streams aren't supported (ie. MP4), a two-step approach works :

    


    ffmpeg -i <some media="media" file="file"> -attach <some file="file"> -metadata:s:2 mimetype=<data mime="mime" type="type"> -map 0:v -map 0:a -codec copy attached.mkv&#xA;ffmpeg -i attached.mkv -codec copy attached.mp4&#xA;</data></some></some>

    &#xA;

    The first command creates a Matroska file that contains a stream with codec_type=attachment. The second command then simply re-packages this into an MP4 container, turning the attachment stream into a data stream (codec_type=data). So the question is : could this be combined into a single step ?

    &#xA;

  • download livestream real-time data

    15 juillet 2024, par Chenguang He

    I'm working on a project to design a RTMP server in Java to get livestream data and download to flv file. One requirement is that to capture the real-time data, I need to download the recording for every second instead of downloading entire recording when livestream stop. Is there any way to achieve it ? Thanks

    &#xA;

    tried to download stream into byte array for every second and decode to flv using H.264 but didn't work.

    &#xA;

  • Javacv-ffmpeg : Getting audio data

    25 janvier 2013, par bmeric

    I'm trying to get audio data from a file(mp3, mp4 and 3gp). I can get frames but not the audio. Am i using wrong ffmpeg classes ?(I'm very new to ffmpeg)

        FFmpegFrameGrabber ff = new FFmpegFrameGrabber("/sdcard/cock_a_1.wav" );    
    
try {
    
    ff.start();
    
    Frame frame;
    
    int i=0;
    
    while ((frame = ff.grabFrame()) != null) {
    
        if (frame.samples.hasArray())
    
            Log.e("frame", String.valueOf(i++));
    
    }
    
    ff.stop();

    How can i extract audio data array ?

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