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  • Amélioration de la version de base

    13 septembre 2013

    Jolie sélection multiple
    Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
    Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...)

  • 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" (...)

Sur d’autres sites (9239)

  • doc/filters : improve libvmaf section

    18 novembre 2019, par Gyan Doshi
    doc/filters : improve libvmaf section

    Added default values, correct strings for default model path and pool
    
method.
    • [DH] doc/filters.texi

  • 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%

  • FFMPEG android very slow converting raw aac to mp3

    24 novembre 2013, par Feras

    I managed to compile ffmpeg for android from this repo :
    https://github.com/aksalj/ffmpeg-android
    So you can see the configuration options in here :
    https://github.com/aksalj/ffmpeg-android/blob/master/config.sh

    The only changes I did were to change the darwin-x86_54 to darwin-x86 since the new r9b NDK only comes with it and also change the androideabi-4.4.3 to androideabi-4.6 again because of the new NDK. I am encoding a raw ADTS aac to mp3, the decoder for aac is libav and encoder for mp3 is libmp3lame. Even though the process works a simple 5 minute aac files (44100, 2ch) is taking about 3 minutes to process. The same file on my mac (with the macports ffmpeg) takes a few seconds.

    I am not sure but are there any optimizations that can be made to the ffmpeg config script or maybe i need to compile ffmpeg with something like libaacplus(even though i think aacplus is used for encoding only, so shouldnt make a difference).Anyways any performance optimizations will be highly appreciated !

    The android device is a US Galaxy S3 (i747m model which has the Snapdragon S4).

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