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  • 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 (...)

  • Configurer la prise en compte des langues

    15 novembre 2010, par

    Accéder à la configuration et ajouter des langues prises en compte
    Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
    De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
    Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...)

  • XMP PHP

    13 mai 2011, par

    Dixit Wikipedia, XMP signifie :
    Extensible Metadata Platform ou XMP est un format de métadonnées basé sur XML utilisé dans les applications PDF, de photographie et de graphisme. Il a été lancé par Adobe Systems en avril 2001 en étant intégré à la version 5.0 d’Adobe Acrobat.
    Étant basé sur XML, il gère un ensemble de tags dynamiques pour l’utilisation dans le cadre du Web sémantique.
    XMP permet d’enregistrer sous forme d’un document XML des informations relatives à un fichier : titre, auteur, historique (...)

Sur d’autres sites (8164)

  • How to use ffmpeg binary in android ?

    6 novembre 2013, par cjose3

    I want make a video from images. I see in some posts (Using FFmpeg with Android-NDK, Create a Video file from images using ffmpeg images-using-ffmpeg) That use command line, is the best choice ?? it's possible ?

    How are build ffmpeg.so ?
    How I can add to the project ?

    This is the command that pretenfi use :

    ffmpeg -r 1 -pattern_type glob -i '*.jpg' out.mp4

    thanks very much.
    I have 2 weeks search !

    Sorry for my English.

  • Converting DVD image with subtitles to MKV using avconv

    16 janvier 2016, par Carlos Eugenio Thompson Pinzón

    This is the procedure I know to convert a DVD image to another videoformat (v.g. MP4) :

    1. concatenate the VTS_01_n.VOB files inside VIDEO_TS folder (for n >= 0) into a single VOB file.
    2. use avconv or ffmpeg in order to convert that VOB into another format.

    So far so good, however now I want to convert the DVD image with the subtitles. As far as I know the MKV format supports subtitles, so it seems an obvious choice. Alternatively I might use any other format with hard subtitles (subtitles as part of the video image).

    However, the subtitle encoding in the DVD image is dvdsub and I get the following error

    Only SUBTITLE_ASS type supported.
    
Subtitle encoding failed

    However, when running avconv -codecs I get :

    ...
    
 DES    dvdsub          DVD subtitles
    
...

    And the -c:s copy switch, while it prevents the command to fail, it does not seem to produce a subtitle that the player can understand.

    So, how can I create ass subtitles from dvdsub using avconv ?

    My VOB file has eight subtitle channels and two audio channels. The Ubuntu video app does not show any subtitles, and only the first audio channel seems to be working, do the DVD image might be broken.

    Another file, for a double-layer DVD, displays the Subtitle encoding error, however when using the -c:s copy switch it further displays :

    Application provided invalid, non monotonically increasing dts to muxer in stream 2: 49 >= 49
    
av_interleaved_write_frame(): Invalid argument

    Thank you in advance for any ideas on how to solve these problems.

    (I am using Ubuntu where ffmpeg is an alias for avconv. I know it is possible to install the real ffmpeg but so far I have not done so.)

    update : commands and console outputs :

    commands

    cat VTS_01_1.VOB VTS_01_2.VOB VTS_01_3.VOB VTS_01_4.VOB VTS_01_5.VOB > ~/temp/mymovie.VOB
    
cd ~/temp
    
avconv -i mymovie.VOB

    output

    avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
    
[mpeg @ 0x1a64d40] max_analyze_duration reached
    
Input #0, mpeg, from 'mymovie.VOB':
    
  Duration: 00:00:01.95, start: 0.280633, bitrate: -2147483 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR 4:3], 7500 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    
    Stream #0.1[0x20]: Subtitle: dvdsub
    
    Stream #0.2[0x21]: Subtitle: dvdsub
    
    Stream #0.3[0x22]: Subtitle: dvdsub
    
    Stream #0.4[0x23]: Subtitle: dvdsub
    
    Stream #0.5[0x24]: Subtitle: dvdsub
    
    Stream #0.6[0x25]: Subtitle: dvdsub
    
    Stream #0.7[0x26]: Subtitle: dvdsub
    
    Stream #0.8[0x27]: Subtitle: dvdsub
    
    Stream #0.9[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
    Stream #0.10[0x81]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
At least one output file must be specified

    command

    avconv -i mymovie.VOB mymovie.mkv

    output

    avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
    
[mpeg @ 0x1cdad40] max_analyze_duration reached
    
Input #0, mpeg, from 'mymovie.VOB':
    
  Duration: 00:00:01.95, start: 0.280633, bitrate: -2147483 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR 4:3], 7500 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 59.94 tbc
    
    Stream #0.1[0x20]: Subtitle: dvdsub
    
    Stream #0.2[0x21]: Subtitle: dvdsub
    
    Stream #0.3[0x22]: Subtitle: dvdsub
    
    Stream #0.4[0x23]: Subtitle: dvdsub
    
    Stream #0.5[0x24]: Subtitle: dvdsub
    
    Stream #0.6[0x25]: Subtitle: dvdsub
    
    Stream #0.7[0x26]: Subtitle: dvdsub
    
    Stream #0.8[0x27]: Subtitle: dvdsub
    
    Stream #0.9[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
    Stream #0.10[0x81]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
File 'mymovie.mkv' already exists. Overwrite ? [y/N] y
    
[buffer @ 0x1ce23c0] w:720 h:480 pixfmt:yuv420p
    
Output #0, matroska, to 'mymovie.mkv':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 1k tbn, 29.97 tbc
    
    Stream #0.1: Audio: libvorbis, 48000 Hz, 5.1, s16
    
    Stream #0.2: Subtitle: ass, 200 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg2video -> mpeg4)
    
  Stream #0:9 -> #0:1 (ac3 -> libvorbis)
    
  Stream #0:1 -> #0:2 (dvdsub -> ass)
    
Press ctrl-c to stop encoding
    
[ass @ 0x1ce0140] Only SUBTITLE_ASS type supported.
    
Subtitle encoding failed

    command

    avconv -i mymovie.VOB -c:s copy mymovie.mkv

    output omitted.

    command

    avconv -i mymovie.mkv

    output

    avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
    
[matroska,webm @ 0xbc1d40] Estimating duration from bitrate, this may be inaccurate
    
Input #0, matroska,webm, from 'mymovie.mkv':
    
  Metadata:
    
    ENCODER         : Lavf53.21.1
    
  Duration: 01:05:09.47, start: 0.000000, bitrate: N/A
    
    Stream #0.0: Video: mpeg4 (Simple Profile), yuv420p, 720x480 [PAR 8:9 DAR 4:3], 29.97 fps, 29.97 tbr, 1k tbn, 30k tbc (default)
    
    Stream #0.1: Audio: vorbis, 48000 Hz, 5.1, s16 (default)
    
    Stream #0.2: Subtitle: dvdsub (default)
    
At least one output file must be specified

    Now, for the double-layer :
    commands

    cat VTS_01_1.VOB VTS_01_2.VOB VTS_01_3.VOB VTS_01_4.VOB VTS_01_5.VOB VTS_01_6.VOB VTS_01_7.VOB VTS_01_8.VOB > ~/temp/mylongmovie.VOB
    
cd ~/temp
    
avconv -i mylongmovie.VOB mylongmovie.mkv

    output

    avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
    
[mpeg @ 0x13c2d40] max_analyze_duration reached
    
Input #0, mpeg, from 'Cosmos-0203.VOB':
    
  Duration: 00:00:30.24, start: 0.280633, bitrate: 2103365 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR 4:3], 8000 kb/s, 27.46 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    
    Stream #0.1[0x20]: Subtitle: dvdsub
    
    Stream #0.2[0x21]: Subtitle: dvdsub
    
    Stream #0.3[0x22]: Subtitle: dvdsub
    
    Stream #0.4[0x23]: Subtitle: dvdsub
    
    Stream #0.5[0x24]: Subtitle: dvdsub
    
    Stream #0.6[0x25]: Subtitle: dvdsub
    
    Stream #0.7[0x26]: Subtitle: dvdsub
    
    Stream #0.8[0x27]: Subtitle: dvdsub
    
    Stream #0.9[0x81]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
    Stream #0.10[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
File 'mylongmovie.mkv' already exists. Overwrite ? [y/N] y
    
[buffer @ 0x13ca3c0] w:720 h:480 pixfmt:yuv420p
    
Output #0, matroska, to 'mylongmovie.mkv':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 1k tbn, 59.94 tbc
    
    Stream #0.1: Audio: libvorbis, 48000 Hz, 5.1, s16
    
    Stream #0.2: Subtitle: ass, 200 kb/s
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg2video -> mpeg4)
    
  Stream #0:9 -> #0:1 (ac3 -> libvorbis)
    
  Stream #0:1 -> #0:2 (dvdsub -> ass)
    
Press ctrl-c to stop encoding
    
[ass @ 0x13d19c0] Only SUBTITLE_ASS type supported.
    
Subtitle encoding failed

    command

    avconv -i mylongmovie.VOB -c:s copy mylongmovie.mkv

    output

    avconv version 0.8.6-6:0.8.6-1ubuntu2, Copyright (c) 2000-2013 the Libav developers
    
  built on Mar 30 2013 22:20:06 with gcc 4.7.2
    
[mpeg @ 0xce1d40] max_analyze_duration reached
    
Input #0, mpeg, from 'mylongmovie.VOB':
    
  Duration: 00:00:30.24, start: 0.280633, bitrate: 2103365 kb/s
    
    Stream #0.0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x480 [PAR 8:9 DAR 4:3], 8000 kb/s, 27.46 fps, 59.94 tbr, 90k tbn, 59.94 tbc
    
    Stream #0.1[0x20]: Subtitle: dvdsub
    
    Stream #0.2[0x21]: Subtitle: dvdsub
    
    Stream #0.3[0x22]: Subtitle: dvdsub
    
    Stream #0.4[0x23]: Subtitle: dvdsub
    
    Stream #0.5[0x24]: Subtitle: dvdsub
    
    Stream #0.6[0x25]: Subtitle: dvdsub
    
    Stream #0.7[0x26]: Subtitle: dvdsub
    
    Stream #0.8[0x27]: Subtitle: dvdsub
    
    Stream #0.9[0x81]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
    Stream #0.10[0x80]: Audio: ac3, 48000 Hz, 5.1, s16, 448 kb/s
    
File 'mylongmovie.mkv' already exists. Overwrite ? [y/N] y
    
[buffer @ 0xce93c0] w:720 h:480 pixfmt:yuv420p
    
Output #0, matroska, to 'mylongmovie.mkv':
    
  Metadata:
    
    encoder         : Lavf53.21.1
    
    Stream #0.0: Video: mpeg4, yuv420p, 720x480 [PAR 8:9 DAR 4:3], q=2-31, 200 kb/s, 1k tbn, 59.94 tbc
    
    Stream #0.1: Audio: libvorbis, 48000 Hz, 5.1, s16
    
    Stream #0.2: Subtitle: dvdsub
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (mpeg2video -> mpeg4)
    
  Stream #0:9 -> #0:1 (ac3 -> libvorbis)
    
  Stream #0:1 -> #0:2 (copy)
    
Press ctrl-c to stop encoding
    
[matroska @ 0xce4b40] Application provided invalid, non monotonically increasing dts to muxer in stream 2: 49 >= 49
    
av_interleaved_write_frame(): Invalid argument

  • Combining multiple clips to form a single video with audio in background [on hold]

    19 septembre 2013, par user1941148

    I am developing an Android app which is combining multiple clips to form a single video and add audio in background of choice. I have gone through various solution like third party libraries but not sure how to actually implement it in Android.

    Some of solution I got are :

    ffmpeg, which is in native C. How to port it to Android ? How exactly to use with NDK ? Is it helpful to me to use ?

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