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  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

  • Possibilité de déploiement en ferme

    12 avril 2011, par

    MediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
    Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)

  • Ajouter des informations spécifiques aux utilisateurs et autres modifications de comportement liées aux auteurs

    12 avril 2011, par

    La manière la plus simple d’ajouter des informations aux auteurs est d’installer le plugin Inscription3. Il permet également de modifier certains comportements liés aux utilisateurs (référez-vous à sa documentation pour plus d’informations).
    Il est également possible d’ajouter des champs aux auteurs en installant les plugins champs extras 2 et Interface pour champs extras.

Sur d’autres sites (10814)

  • configure : Check whether MSVC requires using the C89-to-C99 converter

    4 novembre 2013, par Martin Storsjö
    configure : Check whether MSVC requires using the C89-to-C99 converter
    

    MSVC does support enough of C99 to work without the converter since
    the 2013 version. Try to detect which version of the compiler in
    the path needs to run the C99 converter or not. When the converter
    is omitted, compilation time is reduced quite drastically.

    Prior to this, users could still use —cc="c99conv -noconv cl"
    when running MSVC 2013 to achieve the same.

    This checks the version number instead of doing a normal compile
    test, since this check needs to be done earlier in configure, before
    the normal compile test helpers are usable.

    Signed-off-by : Martin Storsjö <martin@martin.st>

    • [DBH] configure
  • Changing portrait videos to landscape aspect with latest ffmpeg release is breaking

    19 décembre 2016, par zeal

    I am having an issue scaling videos recorded in portrait with the latest version of ffmpeg (2.1). This worked fine in a previous version, but I need the lastest version to fix a different issue.

    I am trying to take any video passed and make it 852 wide by 480 high. It works fine when converting videos that are wider then tall, but when the video is taller then wide it corrupts the video. It actually adds a letter box to the top and bottom, rather then left and right. Also, the meta data shows it as the correct height & width, but its wrong when played in windows.

    Here are the parameters I am using.

    ffmpeg -i INPUT -s 852x480 -r 30 -aspect 1.775 -b:v 2000000 -vcodec mpeg4 -vf "scale=iw*min(852/iw\,480 /ih):ih*min(852/iw\,480 /ih),pad=852:480 :(852-iw)/2:(480 -ih)/2" -ac 2 -b:a 128k -ar 44100 -y OUTPUT

    Console output from ffmpeg -i INPUT -r 30 -b:v 2000000 -vcodec mpeg4 -vf "scale=852:480" -ac 2 -b:a 128k -ar 44100 -y OUTPUT :

    C:\Lib>ffmpeg -i "d\ca96cd13-2995-4794-b753-22be3b918659.mov" -r 30 -b:v 2000000 -vcodec mpeg4 -vf "
    scale=852:480" -ac 2 -b:a 128k -ar 44100 -y "d\portx.mp4"
    ffmpeg version N-58015-g8cdf4e0 Copyright (c) 2000-2013 the FFmpeg developers
     built on Nov 10 2013 18:04:45 with gcc 4.8.2 (GCC)
     configuration: --disable-static --enable-shared --enable-gpl --enable-version3 --disable-w32thread
    s --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-icon
    v --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetype --enable-libgsm --enable-
    libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrw
    b --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr -
    -enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --
    enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enab
    le-libxavs --enable-libxvid --enable-zlib
     libavutil      52. 52.100 / 52. 52.100
     libavcodec     55. 41.100 / 55. 41.100
     libavformat    55. 21.100 / 55. 21.100
     libavdevice    55.  5.100 / 55.  5.100
     libavfilter     3. 90.102 /  3. 90.102
     libswscale      2.  5.101 /  2.  5.101
     libswresample   0. 17.104 /  0. 17.104
     libpostproc    52.  3.100 / 52.  3.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'd\ca96cd13-2995-4794-b753-22be3b918659.mov':
     Metadata:
       major_brand     : qt
       minor_version   : 0
       compatible_brands: qt
       creation_time   : 2013-11-12 15:02:21
       model           : iPhone 5
       model-eng       : iPhone 5
       encoder         : 7.0.2
       encoder-eng     : 7.0.2
       date            : 2013-11-12T10:02:21-0500
       date-eng        : 2013-11-12T10:02:21-0500
       make            : Apple
       make-eng        : Apple
     Duration: 00:00:15.48, start: 0.000000, bitrate: 780 kb/s
       Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 7
    05 kb/s, 29.98 fps, 30 tbr, 600 tbn, 1200 tbc (default)
       Metadata:
         rotate          : 90
         creation_time   : 2013-11-12 15:02:21
         handler_name    : Core Media Data Handler
       Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 62 kb/s (default)
       Metadata:
         creation_time   : 2013-11-12 15:02:21
         handler_name    : Core Media Data Handler
    Output #0, mp4, to 'd\portx.mp4':
     Metadata:
       major_brand     : qt
       minor_version   : 0
       compatible_brands: qt
       make-eng        : Apple
       model           : iPhone 5
       model-eng       : iPhone 5
       make            : Apple
       encoder-eng     : 7.0.2
       date            : 2013-11-12T10:02:21-0500
       date-eng        : 2013-11-12T10:02:21-0500
       encoder         : Lavf55.21.100
       Stream #0:0(und): Video: mpeg4 ( [0][0][0] / 0x0020), yuv420p, 852x480, q=2-31, 2000 kb/s, 15360
    tbn, 30 tbc (default)
       Metadata:
         rotate          : 90
         creation_time   : 2013-11-12 15:02:21
         handler_name    : Core Media Data Handler
       Stream #0:1(und): Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128
    kb/s (default)
       Metadata:
         creation_time   : 2013-11-12 15:02:21
         handler_name    : Core Media Data Handler
    Stream mapping:
     Stream #0:0 -> #0:0 (h264 -> mpeg4)
     Stream #0:1 -> #0:1 (aac -> libvo_aacenc)
    Press [q] to stop, [?] for help
    frame=  465 fps=417 q=3.8 Lsize=    4118kB time=00:00:15.52 bitrate=2173.3kbits/s
    video:3860kB audio:243kB subtitle:0 global headers:0kB muxing overhead 0.348231%
  • Opening file with unknown extension (Mjpeg ?) in OpenCV python

    14 novembre 2013, par bw4sz

    I am trying to open a third party video file into OpenCV with python.
    My camera (plotwatcher camera trap) shoots in a silly proprietary format. The extension is unique (.tlv) but i can play the file in VLC, and using ffmpeg i can see the following encoding :

    C:\Users\Ben>ffmpeg -i C:/Users/Ben/Documents/OpenCV_HummingbirdsMotion/PlotwatcherTest.tlv

    ffmpeg version N-58037-g355cea8 Copyright (c) 2000-2013 the FFmpeg developers
    built on Nov 11 2013 18:01:42 with gcc 4.8.2 (GCC)
    configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
    isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
    le-iconv --enable-libass --enable-libbluray --enable-libcaca --enable-libfreetyp
    e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
    ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
    ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
    eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
    cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
    ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
    libavutil      52. 52.100 / 52. 52.100
    libavcodec     55. 41.100 / 55. 41.100
    libavformat    55. 21.100 / 55. 21.100
    libavdevice    55.  5.100 / 55.  5.100
    libavfilter     3. 90.102 /  3. 90.102
    libswscale      2.  5.101 /  2.  5.101
    libswresample   0. 17.104 /  0. 17.104
    libpostproc    52.  3.100 / 52.  3.100
    Input #0, avi, from &#39;C:/Users/Ben/Documents/OpenCV_HummingbirdsMotion/Plotwatche
    rTest.tlv&#39;:
    Duration: 00:00:05.00, start: 0.000000, bitrate: 14608 kb/s
    Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 1280x720, 10 tb
    r, 10 tbn, 10 tbc

    From this i can see file is encoded into mjpeg format.

    How can i open this file in open cv ?

    import cv2
    #import cv2.cv as cv
    import numpy as np
    cap = cv2.VideoCapture("C:/Users/Ben/Documents/OpenCV_HummingbirdsMotion/PlotwatcherTest.mjpg")
    ret, frame = cap.read()
    #show first image
    cv2.imshow(&#39;my window&#39;,frame)
    cv2.waitKey(0)
    cv2.destroyWindow(&#39;my window&#39;)

    I can see nothing has been loaded. When i try to view the first frame i get the error :

    File "C:\Users\Ben\Documents\OpenCV_HummingbirdsMotion\Test.py", line 21, in <module>
    cv2.imshow(&#39;my window&#39;,frame)
    error: ..\..\..\..\opencv\modules\highgui\src\window.cpp:261: error: (-215)
    size.width>0        &amp;&amp; size.height>0
    </module>

    I've tried leaving the native .tlv, mjpeg and mjpg, and .MJPG endings following the conceptual idea found here : MJPEG stream fails to open in OpenCV 2.4

    i appreciate all help !