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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

Sur d’autres sites (11449)

  • How to get audio track assignment in ffmpeg

    16 février 2012, par David542

    Is there a way to get the audio track assignment in ffmpeg ? For example, if you are in QuickTime, you can view info (Command - I), and see the track assignment. It looks something like this :

    Apple ProRes 422 (HQ), 1,920 x 1,080
    
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Left**
    
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Right**
    
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **Center**
    
Linear PCM, 24 bit little-endian signed integer, 48000 Hz, **LFE Screen**
    
etc...

    When I do $ ffmpeg -i, it does not show the track assignments —

    Stream #0:12(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
    
Metadata:
    
  creation_time   : 2010-09-16 02:23:49
    
  handler_name    : ?Apple Alias Data Handler
    
Stream #0:13(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
    
Metadata:
    
  creation_time   : 2010-09-16 02:23:49
    
  handler_name    : ?Apple Alias Data Handler
    
Stream #0:14(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels, s32, 1152 kb/s
    
Metadata:
    
  creation_time   : 2010-09-16 02:23:49
    
  handler_name    : ?Apple Alias Data Handler
    
Stream #0:15(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/s
    
Metadata:
    
  creation_time   : 2010-09-16 02:23:49
    
  handler_name    : ?Apple Alias Data Handler
    
Stream #0:16(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, stereo, s32, 2304 kb/s

    Is there a way to get the track assignments in ffmpeg or another program ?

  • How to utilize hardware decode for audio ?

    20 mars 2014, par jAckOdE

    I have a buffer that contain packets read by ffmpeg from a video file encoded using H264/AAC
    According to Apple document, audio stream encoded in AAC can be decode with hardware support,

    how to decode the audio stream with hardware support ?

    UPDATE : I use Audio Queue Service to output the audio. Right now i decode AAC packet using ffmpeg and send LPCM audio to AQS. According to the Apple document, I can send directly AAC audio to AQ and it will take care of decoding task. Does it decode with hardware ? Do i need, and how to set Audio Queue's parameter to enable audio hardware decoding ?

  • FFMPEG iPhone using gas-preprocessor

    5 mars 2012, par user308990

    I got the latest version of FFMPEG and gas-preprocessor, and i am trying to build them libraries for iPhone. I put the gas-preprocessor.pl file in my usr/bin folder, and try to configure my ffmpeg with this command.

    ./configure —cc=/Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.2.1 —as='gas-preprocessor.pl /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/arm-apple-darwin9-gcc-4.2.1' —sysroot=/Developer/Platforms/iPhoneOS.platform/Developer/SDKs/iPhoneOS3.1.sdk —enable-cross-compile —target-os=darwin —arch=arm —cpu=cortex-a8 —enable-pic

    But what i get is this error

    Unknown option "—as=gas-preprocessor.pl".
    See ./configure —help for available options.

    Any ideas ??? Thank u.

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