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Autres articles (48)

  • 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.

  • Les autorisations surchargées par les plugins

    27 avril 2010, par

    Mediaspip core
    autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs

  • 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 (9583)

  • FFMpeg video recorder - Android

    30 avril 2014, par 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.?

  • ffmpeg - Incompatible sample format '(null)'

    17 juin 2012, par abrahab

    I convert videos from different sources with ffmpeg to mp4 with libx264 codec. After conversation time to time I got incorrect format error when trying to load already converted video with ffmpeg : Incompatible sample format '(null)' for codec 'aac', auto-selecting format 's16'

    Seems, it is audio stream problem with aac codec ? How to fix or how to convert videos to mp4 to be sure that I will not get the following error ? Maybe somehow need to specify audio format at the ffmpeg convert command ?

    ps. Video must work at Iphone/Ipad.
    pps. the main problem, that such videos with the following error can not be pseudo-streamed with nginx (got 500 Error)
    ppps. and sorry for my bad english, please, correct my text if need. thanks.

    Some additional info from file :

      Duration: 00:00:10.30, start: 0.000000, bitrate: 614 kb/s
    
    Stream #0.0(rus): Video: h264 (High), yuv420p, 1024x576, 567 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00
    
    Stream #0.1(rus): Audio: aac, 22050 Hz, stereo, s16, 57 kb/s
    
    Metadata:
    
      creation_time   : 1970-01-01 00:00:00

  • how to encode mp4 for wowza streaming ?

    29 août 2014, par 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);

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