Recherche avancée

Médias (17)

Mot : - Tags -/wired

Autres articles (61)

  • 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 (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

Sur d’autres sites (8375)

  • configure : Don’t use symlinks for creating the out of tree makefile

    14 novembre 2013, par Martin Storsjö
    configure : Don’t use symlinks for creating the out of tree makefile

    On some platforms (such as msys), symlinks are (poorly) emulated
    
by simply creating a copy of the file.
    

    This means that when building out of tree, the build tree gets
    
a copy of the original makefile, which can lead to unintuitive
    
build errors when the original makefile gets updated later.
    

    Instead simply create a stub makefile which includes the real
    
one.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DH] configure

  • configure : Don’t use symlinks for creating the out of tree makefile

    14 novembre 2013, par Martin Storsjö
    configure : Don’t use symlinks for creating the out of tree makefile

    On some platforms (such as msys), symlinks are (poorly) emulated
    
by simply creating a copy of the file.
    

    This means that when building out of tree, the build tree gets
    
a copy of the original makefile, which can lead to unintuitive
    
build errors when the original makefile gets updated later.
    

    Instead simply create a stub makefile which includes the real
    
one.
    

    Signed-off-by : Martin Storsjö <martin@martin.st>
    • [DBH] configure

  • Settings required to set to emulate the FFMPEG '-sameq' flag when using libavcodec

    14 novembre 2013, par Jonathan Websdale

    Currently attempting to use libavcodec to transcode MP4 (MPEG4 and H264) and MPG (MPEG2) video files into .MP4, .MPG and .AVI files.
    Have done this previously using FFMpeg.exe with use of the '-sameq' flag to retain the same/similar quality output file to that of the input file.

    Now using av_open_input_file, av_read_frame and avcodec_decode_video2 to open, read and decode the input file, then assigning a AVCodecContext and encoding the data using avcodec_encode_video. However the output file video quality is pretty poor.

    These are the AVCodecContext settings I'm using ? :-

    codecContextOutput->width = SAME AS INPUT FILE;
    
codecContextOutput->height = SAME AS INPUT FILE;
    
codecContextOutput->pix_fmt = SAME AS INPUT FILE;
    
/* frames per second */
    
AVRational ar; 
    
ar.num = 1;
    
ar.den = 25;
    
codecContextOutput->time_base = ar;
    
codecContextOutput->gop_size = 10; /* emit one intra frame every ten frames */
    
codecContextOutput->max_b_frames=1;
    
codecContextOutput->bit_rate = 480000;

    Does anybody know the additional settings needed to emulate the '-sameq' setting or what additional settings are needed in the AVCodecContext to improve the output quality ?

Navigation