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Médias (91)

Autres articles (8)

  • D’autres logiciels intéressants

    12 avril 2011, par

    On ne revendique pas d’être les seuls à faire ce que l’on fait ... et on ne revendique surtout pas d’être les meilleurs non plus ... Ce que l’on fait, on essaie juste de le faire bien, et de mieux en mieux...
    La liste suivante correspond à des logiciels qui tendent peu ou prou à faire comme MediaSPIP ou que MediaSPIP tente peu ou prou à faire pareil, peu importe ...
    On ne les connais pas, on ne les a pas essayé, mais vous pouvez peut être y jeter un coup d’oeil.
    Videopress
    Site Internet : (...)

  • 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 (...)

  • Emballe médias : à quoi cela sert ?

    4 février 2011, par

    Ce plugin vise à gérer des sites de mise en ligne de documents de tous types.
    Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ;

Sur d’autres sites (4045)

  • FFmpeg encoding to H265

    17 février 2016, par Some1Else

    I read that the new H265 is supposed to have around twice the compression efficiency of H264 and supposed files around half the size http://x265.org/hevc-h265/ All of my results trying to encode to H265 give me larger files than H264 from the same source.

    For H264 I am passing these switches to ffmpeg command line

    -c:v libx264 -preset:v veryslow -profile:v high -crf 15 -pix_fmt yuvj420p -an -y -r 30

    For H265 I am using these switches

    -c:v libx265 -preset:v veryslow -crf 15 -an -y -r 30

    In all tests using a variety of different source frames the H265 always results in a larger file size (and is also much much slower to encode).

    Any tips for H265 ? I want the H265 to look like the same quality as H264 but not result in larger files.

    Thanks.

  • configure : Use indirection for the -o assembler flag also for x86asm

    14 mars 2018, par Diego Biurrun
    configure : Use indirection for the -o assembler flag also for x86asm

    Similar indirections are used for the -o compiler/assembler flag to
    
account for differences in compiler/assembler syntax. For x86asm half
    
the infrastructure for doing the same currently exists unused.
    
Finish and use that infrastructure for consistency.
    • [DBH] configure

  • FFMpeg + OpenAL

    24 juillet 2013, par Dekowta

    I've been having a problem decoding different codecs into PCM 16 little-endian which is the supported format for OpenAL (I believe that is correct).

    I am using the windows pre-compiled libraries for FFMpeg (dont know if that effects anything).

    The code I have so far is here http://pastebin.com/T4wGL72a

    I have aiff and wav working (though with single channel OpenAL wants to have half the frequency and im not really sure why).

    The main problem is encoded audio files.

    mp3 files play sometimes (sometime get missing header) but end up stuttering with noise and are high pitched.

    ac3 files played the first preloaded buffers and then the frame would not have any more decoded data in the data array (did not check to see if the packet fetched encoded data or not).

    ogg files are the same as ac3

    m4a files would never finish the frame so I have no idea what happens when they do.

    wma files stutter and have a lot of noise but it is not high pitched like mp3 files

    I don't work with audio very often so its difficult for me to get my head round it and this is also the first time I've worked with FFMpeg.

    I'm sure there is something i'm doing very wrong I just need a hand on pointing out where it is.

    Thanks

    Chris.

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