Recherche avancée

Médias (3)

Mot : - Tags -/image

Autres articles (97)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Multilang : améliorer l’interface pour les blocs multilingues

    18 février 2011, par

    Multilang est un plugin supplémentaire qui n’est pas activé par défaut lors de l’initialisation de MediaSPIP.
    Après son activation, une préconfiguration est mise en place automatiquement par MediaSPIP init permettant à la nouvelle fonctionnalité d’être automatiquement opérationnelle. Il n’est donc pas obligatoire de passer par une étape de configuration pour cela.

  • Websites made ​​with MediaSPIP

    2 mai 2011, par

    This page lists some websites based on MediaSPIP.

Sur d’autres sites (8634)

  • Damaged h264 stream not working with ffmpeg but working with vlc or mplayer

    15 avril 2013, par gregoiregentil

    I have a h264 file, coming from an rtsp stream, that is slightly damaged. Some frames are altered.

    ffmpeg reports :

    ffmpeg -i stream.mpg
    ffmpeg version 0.8.6-4:0.8.6-0ubuntu0.12.04.1, Copyright (c) 2000-2013 the Libav developers
     built on Apr  2 2013 17:00:59 with gcc 4.6.3
    *** THIS PROGRAM IS DEPRECATED ***
    This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.

    Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 90000.00 (180000/2)
    Input #0, mpegts, from 'a.mpg':
     Duration: 00:03:18.84, start: 93370.745522, bitrate: 2121 kb/s
     Program 1
       Stream #0.0[0x44](): Video: h264 (Baseline), yuv420p, 640x480, 90k tbr, 90k tbn, 180k tbc
    At least one output file must be specified

    I can play the file with VLC or mplayer. Obviously, the damaged frames are "kind of blurred" but it's working. mplayer reports :

    mplayer stream.mpg
    MPlayer2 UNKNOWN (C) 2000-2011 MPlayer Team
    mplayer: could not connect to socket
    mplayer: No such file or directory
    Failed to open LIRC support. You will not be able to use your remote control.

    Playing stream.mpg.
    Detected file format: MPEG-2 transport stream format (libavformat)
    [lavf] stream 0: video (h264), -vid 0
    LAVF: Program 1
    VIDEO:  [H264]  640x480  0bpp  90000.000 fps    0.0 kbps ( 0.0 kbyte/s)
    Load subtitles in .
    [ass] auto-open
    ==========================================================================
    Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
    Asking decoder to use 2 threads if supported.
    Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
    ==========================================================================
    Audio: no sound
    Starting playback...
    V:   0.0   0/  0 ??% ??% ??,?% 0 0
    Movie-Aspect is undefined - no prescaling applied.
    VO: [xv] 640x480 => 640x480 Planar YV12
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!
    Video pts after filters MISSING
    V:93370.7   0/  0 ??% ??% ??,?% 0 0
    No pts value from demuxer to use for frame!

    When I try to re-encode the file with :

    ffmpeg -i stream.mpg -fflags +genpts -an -vcodec mpeg4 -r 65535/2733 stream.mp4

    ffmpeg seems to jump over the altered frames. The length of stream.mp4 << length of stream.mpg

    How could I fix this problem, i.e. having ffmpeg to output something similar to what mplayer and vlc output ?

  • Revision 30147 : corrections orthographiques

    24 juillet 2009, par denisb@… — Log

    corrections orthographiques

  • Revision 30164 : Code mort bis

    24 juillet 2009, par kent1@… — Log

    Code mort bis