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Autres articles (90)

  • 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" (...)

  • Le profil des utilisateurs

    12 avril 2011, par

    Chaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
    L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...)

Sur d’autres sites (10963)

  • ffmpeg configure for ios - using asm options causes MPx (mp1, mp2, mp3) codecs sound problems

    18 avril 2013, par hard gamer

    I've made many tests to get good performance for video decoding with ffmpeg on low cpu idevices such as iPad 1 and iPhone 3Gs, and see that using asm option when configuring ffmpeg for cross compiling for ios is very very important for performance..

    But when I configure with —enable-asm, the audio stream which using mpx(mp1,mp2,mp) codec sounds squeaky.
    If I configure with —disable-asm option, than mpx(mp1,mp2,mp) codec sounds well but then the performance is %50 percent of the previous one built with the —enable-asm option...

    I've also tested these with the ffmpeg versions that are 0.8, 0.9, 0.10, 0.11, 1.0,1.1,1.2
    All of them produces same results...

    Can anyone have the same problem with me ? Also, any idea how can I fix this issue ? please advice me .. (I can not find any patch to fix this issue on the net or in ffmpeg forums.)

    -MS

  • Convert HEVC/H.265 video to a more widely supported format using fluent-ffmpeg in Node.js

    21 juin 2021, par Daniel Loiterton

    My app allows users to upload videos from their phones. However, the latest iPhone default format (HEVC / H.265) does not seem to be supported by Chrome and other browsers, so some users cannot stream the videos.

    


    I'm already using fluent-ffmpeg on my Node.js backend to read metadata and extract thumbnails from the uploaded videos. How would I go about converting HEVC videos to something else ? What format/options would be appropriate for streaming to browsers ? Ideally I'd like to keep files fairly small, and I'm willing to sacrifice some quality to that end.

    


  • 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%

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