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Autres articles (43)

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Creating farms of unique websites

    13 avril 2011, par

    MediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
    This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...)

  • 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 (...)

Sur d’autres sites (8865)

  • dnxhdenc : fix speed regression

    25 septembre 2012, par Michael Niedermayer

    dnxhdenc : fix speed regression

  • How can I speed up live stream of screen capture with ffmpeg ?

    15 octobre 2012, par PICyourBrain

    I am attempting to stream the desktop of one computer to another computer on an internal network. I am trying to use ffmpeg on the sending side and VLC on the receiving side. I am using screen-capture-recorder as the video input device. I have been trying the command : ffmpeg -f dshow -i video="screen-capture-recorder" -f mpegts udp://host:port With this command there is a 2-5 second delay on the receiving machine. I need to get the delay down to less than a second.

    Does anyone have any suggestions on how to reduce the delay ?

  • Trouble with the ffmpeg -ss flag when capturing one frame from a Macbook iSight webcam

    31 août 2011, par Andy

    For about five years I've used ffmpeg in a shell script to grab one frame from my linux'd-up Macbook's iSight :

    ffmpeg -f video4linux2 -s 640x480 -r 15 -i /dev/video0 -an -vframes 1 -vcodec mjpeg -y -sameq -ss 1.5 snapshot.jpg

    I just upgraded my Ubuntu distro from Lucid to Natty (ffmpeg ver. 0.6.2-4:0.6.2-1ubuntu1).
    Now that syntax turns the iSight on but hangs indefinitely.

    [output snipped, ending with:]
    
frame=    0 fps=  0 q=0.0 Lsize=      -0kB time=10000000000.00 bitrate=  -0.0kbits/s    
    
video:0kB audio:0kB global headers:0kB muxing overhead -inf%

    Without the '-ss' flag it seems to successfully grab the first frame and exit immediately - the only difference in output being :

    frame=    1 fps=  0 q=0.0 Lsize=      -0kB time=0.07 bitrate=  -2.6kbits/s    
    
video:16kB audio:0kB global headers:0kB muxing overhead -100.132730%

    However, the '-ss 1.5' was necessary to delay the frame capture by 1.5 seconds to allow the cam sufficient time to adjust the exposure.

    The -itsoffset flag seemed promising, but doesn't seem to change ffmpeg's behavior (ie doesn't hang, but no delay).

    Any ideas ?

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