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Autres articles (53)

  • 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 (...)

  • Des sites réalisés avec MediaSPIP

    2 mai 2011, par

    Cette page présente quelques-uns des sites fonctionnant sous MediaSPIP.
    Vous pouvez bien entendu ajouter le votre grâce au formulaire en bas de page.

  • 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 (...)

Sur d’autres sites (5897)

  • reading video mpegts stream from stdin using libavformat libavcodec

    1er février 2012, par D Starkweather

    I'm trying to read video frames from stdin using ffmpeg's libav* lib collection. Simply passing "pipe:0" or "pipe :" as the filename to avformat_open_input_file() in my program does not do the trick. (e.g. cat /dev/video0 | ./myprogram OR ./myprogram < /dev/video0 ; it also fails using file.avi in place of /dev/video0).

    Peeking into ffmpeg.c, I find the following bit of code using tcsetattr() to set the termios :

    struct termios tty;
    

    
if (tcgetattr (0, &amp;tty) == 0) {
    
oldtty = tty;
    
restore_tty = 1;
    
atexit(term_exit);
    

    
tty.c_iflag &amp;= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
    
                      |INLCR|IGNCR|ICRNL|IXON);
    
tty.c_oflag |= OPOST;
    
tty.c_lflag &amp;= ~(ECHO|ECHONL|ICANON|IEXTEN);
    
tty.c_cflag &amp;= ~(CSIZE|PARENB);
    
tty.c_cflag |= CS8;
    
tty.c_cc[VMIN] = 1;
    
tty.c_cc[VTIME] = 0;
    

    
tcsetattr (0, TCSANOW, &amp;tty);
    
}
    
signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
    
}
    

    
avformat_network_deinit();
    

    
signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
    
signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
    
signal(SIGXCPU, sigterm_handler);

    However, when I try this, it appears to have no effect. What settings do I need in the termios struct to continuously read video frames in ?

    Currently, all i am able to do is call av_read_frames a few times (return code 0) before it usually either segfaults or hangs waiting. The buffer usually contains just a blank screen (all black). With any luck, the video buffer will contain the first video frame it comes across, but does not update to the later frames.

    (I'm running this on Debian 6.0) Here's my version of ffmpeg :

    ffmpeg version N-36936-g4cf81d9 Copyright (c) 2000-2012 the FFmpeg
    developers built on Jan 19 2012 20:51:47 with gcc 4.4.5
    configuration : —enable-shared —enable-gray —enable-hardcoded-tables
    —enable-runtime-cpudetect —enable-libmp3lame —enable-libopenjpeg —enable-librtmp —enable-libtheora —enable-libvorbis —enable-libx264 —enable-libxvid —enable-zlib —enable-gpl libavutil 51. 34.101 / 51. 34.101 libavcodec 53. 57.100 /
    53. 57.100 libavformat 53. 30.100 / 53. 30.100 libavdevice 53. 4.100 / 53. 4.100 libavfilter 2. 59.101 / 2. 59.101 libswscale 2. 1.100 / 2. 1.100 libswresample 0. 6.100 /
    0. 6.100 libpostproc 52. 0.100 / 52. 0.100 Hyper fast Audio and Video encoder usage : ffmpeg [options] [[infile options] -i
    infile].

    Thank you very much for any help helpful tips. It is much appreciated.

    D. Grant Starkweather

  • FFMPEG - Correct command line parameters to create a H.264 Streaming MP4 from a set of images

    5 janvier 2012, par Adam

    I have no problems viewing a video created by my current parameters in a HTML5 browser, Flash player, Windows Phone 7, Android Phone, etc. However, they won't display on iPhone or iPad. If I modify the video using Super and select "Enable Streaming" checkbox they work on iPhone and iPad suddenly. We are suspecting that my command line parameters are incorrect for enabling h.264 streaming and are instead generating a "progressive download" video.

    I'm pretty new to FFMPEG and don't understand a lot of the parameters. Can anyone help correct my existing parameters, or maybe provide the missing parameters, etc ?

    Thanks in advance.

    My current FFMPEG command line paramters are :

    ffmpeg.exe 
 -r 30 
 -threads 4 
 -f image2 
 -i .\frame%05d.jpg 
 -i audioFile  
 -acodec aac 
 -ab 128k 
 -ar 44100
 -vcodec h264 
 -crf 27 
 -coder 1 
 -flags +loop 
 -cmp +chroma 
 -partitions +parti4x4+partp8x8+partb8x8 
 -me hex 
 -subq 5 
 -me_range 16 
 -g 60 
 -keyint_min 25 
 -sc_threshold 40 
 -i_qfactor 0.71 
 -b_strategy 1 
 out.mp4

  • Anomalie #2745 : Icone des Itruc

    1er juin 2012, par kent1 -

    http://www.alsacreations.com/astuce/lire/1080-apple-touch-icon-iphone-ipad-ipod-icone.html 114x114 px en png apple-touch-icon.png devrait suffir... Donc une règle dans le htaccess : RewriteRule ^apple-touch-icon[.]png$ spip.php ?page=apple-touch-icon.png [QSA,L] et une page (...)

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