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Autres articles (40)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • 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 (...)

  • De l’upload à la vidéo finale [version standalone]

    31 janvier 2010, par

    Le chemin d’un document audio ou vidéo dans SPIPMotion est divisé en trois étapes distinctes.
    Upload et récupération d’informations de la vidéo source
    Dans un premier temps, il est nécessaire de créer un article SPIP et de lui joindre le document vidéo "source".
    Au moment où ce document est joint à l’article, deux actions supplémentaires au comportement normal sont exécutées : La récupération des informations techniques des flux audio et video du fichier ; La génération d’une vignette : extraction d’une (...)

Sur d’autres sites (3860)

  • fate : aac : Place LATM tests and general AAC tests in different groups

    20 octobre 2012, par Diego Biurrun

    fate : aac : Place LATM tests and general AAC tests in different groups

  • doc/protocols/file : document general file protocol URL syntax

    4 janvier 2014, par Stefano Sabatini
    doc/protocols/file : document general file protocol URL syntax

    Also drop confusing ff* tools reference about exceptions to the
    
file:FILENAME syntax, which is not ff* tool specific.
    

    With various edits by Alexander Strasser <eclipse7@gmx.net>.
    • [DH] doc/protocols.texi

  • armv6 : Accelerate ff_fft_calc for general case (nbits != 4)

    16 juillet 2014, par Ben Avison
    armv6 : Accelerate ff_fft_calc for general case (nbits != 4)

    The previous implementation targeted DTS Coherent Acoustics, which only
    
requires nbits == 4 (fft16()). This case was (and still is) linked directly
    
rather than being indirected through ff_fft_calc_vfp(), but now the full
    
range from radix-4 up to radix-65536 is available. This benefits other codecs
    
such as AAC and AC3.
    

    The implementaion is based upon the C version, with each routine larger than
    
radix-16 calling a hierarchy of smaller FFT functions, then performing a
    
post-processing pass. This pass benefits a lot from loop unrolling to
    
counter the long pipelines in the VFP. A relaxed calling standard also
    
reduces the overhead of the call hierarchy, and avoiding the excessive
    
inlining performed by GCC probably helps with I-cache utilisation too.
    

    I benchmarked the result by measuring the number of gperftools samples that
    
hit anywhere in the AAC decoder (starting from aac_decode_frame()) or
    
specifically in the FFT routines (fft4() to fft512() and pass()) for the
    
same sample AAC stream :
    

                  Before          After
    
              Mean   StdDev   Mean   StdDev  Confidence  Change
    
Audio decode  2245.5 53.1     1599.6 43.8    100.0%      +40.4%
    
FFT routines  940.6  22.0     348.1  20.8    100.0%      +170.2%
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] libavcodec/arm/fft_init_arm.c
    • [DBH] libavcodec/arm/fft_vfp.S

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