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  • 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 (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (12132)

  • avcodec/mpegaudio_tablegen : more dynamic table creation speedups

    28 novembre 2015, par Ganesh Ajjanagadde
    avcodec/mpegaudio_tablegen : more dynamic table creation speedups

    This further speeds up runtime initialization, with identical generated tables.
    

    Sample benchmark (x86-64, Haswell, GNU/Linux) :
    

    old :
    
34441423 decicycles in mpegaudio_tableinit,    8192 runs,      0 skips
    

    new :
    
10776291 decicycles in mpegaudio_tableinit,    8192 runs,      0 skips
    

    Most low hanging fruit is taken care of here. For some idea, note that
    
83,064 array elements totalling 233,722 bytes need to be initialized.
    
Thus, with this patch, we average 12.9 cycles per element or 4.6
    
cycles per byte.
    

    Reviewed-by : Derek Buitenhuis <derek.buitenhuis@gmail.com>
    
Signed-off-by : Ganesh Ajjanagadde <gajjanagadde@gmail.com>
    • [DH] libavcodec/mpegaudio_tablegen.h

  • Convert .mp3/.wav file into g729/amr/g711 codec file and vice versa using PJSIP

    19 septembre 2017, par NandhaKumar

    PJSIP is used for SIP Registering, audio/video Calling and supporting some other VoIP Call features. If you want to create an VoIP Application, you will create an application using their libraries.

    In this library, there are available lot of codecs and some of codecs are available as third party codecs and you can integrate into PJSIP library. Then you can able to support those codecs while calling another SIP user/client.

    Generally In mobile phones, the voice is record as audio file through
    mic and it has passed to PJSIP library. Then those codec/pjmedia library take care
    of other operations like converting into anyother codec format which
    they want to send.

    Instead of that, can we able to pass .mp3/.wav file into PJSIP library and convert it into codec files like .g729/.amr/.g711-u and vice versa

    I don’t about how codec conversion/codec engine internally works around.
    If you know about the codec conversion from .mp3 format is possible using PJSIP library, please suggest me how to solve this problem.

    Thanks in Advance !

  • FFMPEG reports different (wrong) video resolution compared to how it actually plays

    30 mars 2015, par Emiliano

    Quick question, i have a movie, which was cut and rendered with Sony Vegas from its original format to a .wmv file. Here comes the tricky part, movie when played, either with VLC or WMP, has a resolution of 656x480 ... BUT when i run a ffmpeg -i on it, it says it has a resolution of 600x480 ....

    I took the time of actually capturing a frame and croping it with photoshop and its 656 and not 600 like ffmpeg its reporting, why would this could be happening ? How could i fix the headers resolution ? Would that have any impact on video re-rendering ? As i said, VLC and WMP seems not to care about the incorrect headers and are playing it right, BUT, jwplayer seems to be using the header information, which i don’t blame him, its correct to do that, but why the video headers could be wrong ?

    ffmpeg -i trailer.wmv
    Input #0, asf, from ’trailer.wmv’ :
Duration : 00:01:04.93, start : 3.000000, bitrate : 2144 kb/s
Stream #0.0 : Audio : wmav2, 44100 Hz, mono, 32 kb/s
Stream #0.1 : Video : wmv3, yuv420p, 600x480 [PAR 59:54 DAR 295:216], 2065 kb/
s, 25.00 tb(r)

    And yeah, the PAR/DAR parameters are also wrong, but honestly, i don’t understand that technical shit, usually watch video and make sure it look good, any feedback would be appreciated :P

    Is there a way to change the container information with ffmpeg so applications that actually do use the container information don’t render video incorrectly ?

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