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Autres articles (42)

  • Qu’est ce qu’un masque de formulaire

    13 juin 2013, par

    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. (...)

  • MediaSPIP v0.2

    21 juin 2013, par

    MediaSPIP 0.2 is the first MediaSPIP stable release.
    Its official release date is June 21, 2013 and is announced here.
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

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  • iPhone slow motion video transcode

    28 septembre 2019, par coverboy

    I’m developing upload video (taken from iPhone) to my server.

    However, I have no idea how to implement.

    Any source code objective-c or swift will be welcomed.

    I have 120fps or 240fps video (It’s a slo-mo).
    When I playback these video on my iPhone6. I can see slo-mo effect.
    (I know playback frame rate is 30fps.)

    I want to convert that video before upload to my server, from 120/240 fps to 30fps video. (I mean not adjusting playback frame rate, it means video transcode to 30fps.)
    Additionally, I want to check slo-mo effect start-point and end-point.
    (Maybe iPhone record this information to video binary(it might be reside in file’s header.)

    Well, I guess if I use ffmpeg library, it should be easy(?).

    So any suggestions will be welcomed.

  • IOS streaming video from iPhone to server - ffmpeg

    30 mars 2013, par DaveInSydney

    I have successfully written code that captures 6 second long mp4 video segments on an iPhone 4S and uploads them to a server without losing any frames between segments. This works well however I am now trying to change the mp4 container to mpeg2 ts and then upload the ts file. I am trying to figure out how ffmpeg works but I am lost. Has anyone got a bit of sample code that takes an mp4 file as input and spits out an mpeg2 ts file.

    Any help would be most appreciated.

  • Converting Quicktime (.mov ) from iPhone to mp4

    24 mars 2020, par user3094755

    On iPhones running iOS 11, if a video is pre-recorded and uploaded I get the following errors :- ( ie, the video is recoded on the iPhone and then uploaded as an attachment ).

    $ ./ffmpeg -i .mov -vcodec h264 -acodec mp4 test-output.mp4
    
FFmpeg version CVS, Copyright (c) 2000-2004 Fabrice Bellard
    
Mac OSX universal build for ffmpegX
    
  configuration:  --enable-memalign-hack --enable-mp3lame --enable-gpl --disable-vhook --disable-ffplay --disable-ffserver --enable-a52 --enable-xvid --enable-faac --enable-faad --enable-amr_nb --enable-amr_wb --enable-pthreads --enable-x264 
    
  libavutil version: 49.0.0
    
  libavcodec version: 51.9.0
    
  libavformat version: 50.4.0
    
  built on Apr 15 2006 04:58:19, gcc: 4.0.1 (Apple Computer, Inc. build 5250)
    
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x5597b8]mov: header not found !!! (err:0, moov:0, mdat:0) pos:3189455560
    
.mov: Error while opening file
    
$

    If the video is recorded and then transferred to a Desktop uploaded and then converted it works OK.

    If I use a ‘live’ recording then all is OK.

    I found this…

    https://www.howtogeek.com/327689/how-to-make-your-iphone-use-jpg-and-mp4-files-instead-of-heif-and-hevc/

    Which seems to suggest iOS 11 will use different formats, but this appears to make no difference whatever the settings are for ‘High Efficiency / Most Compatible’.

    Any ideas ?

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