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Autres articles (98)

  • Contribute to translation

    13 avril 2011

    You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
    To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
    MediaSPIP is currently available in French and English (...)

  • 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.

  • Gestion générale des documents

    13 mai 2011, par

    MédiaSPIP ne modifie jamais le document original mis en ligne.
    Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
    Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)

Sur d’autres sites (7665)

  • Revision 734c5ffa2c : Apply constrained partition search range to non-RD mode decision This commit en

    23 avril 2014, par Jingning Han

    Changed Paths :
     Modify /vp9/encoder/vp9_encodeframe.c



    Apply constrained partition search range to non-RD mode decision

    This commit enables a chessboard pattern for partition search. All
    the black blocks run regular partition search ranging from 8x8 to
    32x32. The rest white blocks take the nearby blocks’ information
    to adaptively decide the effective search range.

    The compression performance for rtc set at speed -5 is down by 1.5%.
    For pedestrian 1080p at speed -5, the runtime goes from 41594 ms to
    39697 ms, i.e., about 5% faster.

    Change-Id : Ia4b96e237abfaada487c743bca08fe1afd298685

  • Revision 939791a129 : Modify encode breakout for static frames Thank Paul for the suggestions. While

    6 septembre 2013, par Yunqing Wang

    Changed Paths :
     Modify /vp9/encoder/vp9_firstpass.c


     Modify /vp9/encoder/vp9_onyx_if.c


     Modify /vp9/encoder/vp9_onyx_int.h


     Modify /vp9/encoder/vp9_rdopt.c



    Modify encode breakout for static frames

    Thank Paul for the suggestions. While turning on static-thresh
    for static-image videos, a big jump on bitrate was seen. In this
    patch, we detected static frames in the video using first-pass
    stats. For different cases, disable encode breakout or reduce
    encode breakout threshold to limit the skipping.

    More modification need be done to break incorrect partition
    picking pattern for static frames while skipping happens.

    Change-Id : Ia25f47041af0f04e229c70a0185e12b0ffa6047f

  • ffmpeg - Continuously stream webcam to single .jpg file (overwrite)

    8 octobre 2016, par Germanunkol

    I have installed ffmpeg and mjpeg-streamer. The latter reads a .jpg file from /tmp/stream and outputs it via http onto a website, so I can stream whatever is in that folder through a web browser.

    I wrote a bash script that continuously captures a frame from the webcam and puts it in /tmp/stream :

    while true
    
do
    
    ffmpeg -f video4linux2 -i /dev/v4l/by-id/usb-Microsoft_Microsoft_LifeCam_VX-5000-video-index0 -vframes 1 /tmp/stream/pic.jpg
    
done

    This works great, but is very slow ( 1 fps). In the hopes of speeding it up, I want to use a single ffmpeg command which continuously updates the .jpg at, let’s say 10 fps. What I tried was the following :

    ffmpeg -f video4linux2 -r 10 -i /dev/v4l/by-id/usb-Microsoft_Microsoft_LifeCam_VX-5000-video-index0 /tmp/stream/pic.jpg

    However this - understandably - results in the error message :

    [image2 @ 0x1f6c0c0] Could not get frame filename number 2 from pattern '/tmp/stream/pic.jpg'
    
av_interleaved_write_frame(): Input/output error

    ...because the output pattern is bad for a continuous stream of images.

    Is it possible to stream to just one jpg with ffmpeg ?

    Thanks...

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