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  • Keeping control of your media in your hands

    13 avril 2011, par

    The vocabulary used on this site and around MediaSPIP in general, aims to avoid reference to Web 2.0 and the companies that profit from media-sharing.
    While using MediaSPIP, you are invited to avoid using words like "Brand", "Cloud" and "Market".
    MediaSPIP is designed to facilitate the sharing of creative media online, while allowing authors to retain complete control of their work.
    MediaSPIP aims to be accessible to as many people as possible and development is based on expanding the (...)

  • Mise à jour de la version 0.1 vers 0.2

    24 juin 2013, par

    Explications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
    Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...)

  • Les tâches Cron régulières de la ferme

    1er décembre 2010, par

    La gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
    Le super Cron (gestion_mutu_super_cron)
    Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)

Sur d’autres sites (9808)

  • How to get rid of errors "jitter buffer full" in ffmpeg ?

    31 janvier 2021, par jidckii

    How to get rid of errors jitter buffer full ?
    
I use ffmpeg from one of the latest snapshots.
    
ffmpeg version N-90078-gf611fef Copyright (c) 2000-2018 the FFmpeg developers

    



    The problem is that from the camera on rtsp there is such a stream :
    
http://ibb.co/fmckCc
    
It is not possible to fix this from the camera side.

    



    I accept it like this :

    



    ffmpeg \
-strict experimental \
-fflags + genpts \
-fflags + latm \
-seek2any 1 \
-avoid_negative_ts + make_zero \
-max_delay 5000000 \
-rtsp_transport udp \
-i rtsp: // admin: @ 192.168.87.21: 554/0? .sdp \
-map 0 \
-r 15 \
-c: v copy \
-an \
-f mpegts udp: //239.0.0.1: 1234? ttl = 1? pkt_size = 1316


    



    I later start to get errors from time to time

    



    [rtsp @ 0x154d180] jitter buffer full
[rtsp @ 0x154d180] RTP: missed 1 packets
[rtsp @ 0x154d180] jitter buffer full
[rtsp @ 0x154d180] RTP: missed 1 packets
[rtsp @ 0x154d180] jitter buffer full
[rtsp @ 0x154d180] RTP: missed 2 packets
[rtsp @ 0x154d180] jitter buffer full
[rtsp @ 0x154d180] RTP: missed 4 packets


    



    because of this the picture crumbles.

    



    I increased the udp buffer in the linux kernel settings :

    



    net.core.rmem_max = 16777216
net.core.wmem_max = 16777216
net.ipv4.udp_mem = 8388608 12582912 16777216
net.ipv4.tcp_rmem = 4096 87380 8388608
net.ipv4.tcp_wmem = 4096 65536 8388608


    



    It did not solve my problem.
    
Tell me, how can you deal with such errors ?

    


  • ffmpeg "Requested output format 'decklink is not a suitable format'"

    9 février 2018, par user3104363

    I am trying to play a video using ffmpeg and decklink.
    I compiled ffmpeg from ffmpeg repo.
    I am working in ubuntu 16.04 lts.

    Here is my command :

    ./ffmpeg -err_detect ignore_err -threads 0 -re -i ./sample_1080_50i.ts -bufsize 1M -vf yadif -format_code Hi50 -f decklink -preroll 0.7 -pix_fmt uyvy422 'DeckLink Studio 4K'

    The result is :

    ffmpeg version N-89978-gcb97400 Copyright (c) 2000-2018 the FFmpeg developers
    
  built with gcc 5.1.1 (Ubuntu 5.1.0-0ubuntu11~10.04.2)
    
  configuration: --prefix=/home/sarslan/ffmpeg_build --pkg-config-flags=--static --extra-cflags='-I/home/sarslan/ffmpeg_build/include -I/home/sarslan/ffmpeg_sources/Blackmagic_DeckLink_SDK_10.9.5/Linux/include' --extra-ldflags=-L/home/sarslan/ffmpeg_build/lib --extra-libs='-lpthread -lm' --bindir=/home/sarslan/bin --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-nonfree --enable-static --disable-shared --enable-decklink --enable-ffplay
    
  libavutil      56.  7.100 / 56.  7.100
    
  libavcodec     58. 10.100 / 58. 10.100
    
  libavformat    58.  9.100 / 58.  9.100
    
  libavdevice    58.  1.100 / 58.  1.100
    
  libavfilter     7. 11.101 /  7. 11.101
    
  libswscale      5.  0.101 /  5.  0.101
    
  libswresample   3.  0.101 /  3.  0.101
    
  libpostproc    55.  0.100 / 55.  0.100
    
Input #0, mpegts, from './sample_1080_50i.ts':
    
  Duration: 00:05:00.08, start: 1.437333, bitrate: 4675 kb/s
    
  Program 1 
    
    Metadata:
    
      service_name    : Service01
    
      service_provider: FFmpeg
    
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(top first), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    
    Stream #0:1[0x101](eng): Audio: aac (LC) ([15][0][0][0] / 0x000F), 48000 Hz, stereo, fltp, 123 kb/s
    
[NULL @ 0xb2ed180] Requested output format 'decklink' is not a suitable output format
    
DeckLink Studio 4K: Invalid argument

    I think, this error is weird.
    I enabled decklink support with —enable-decklink, and I also check ffmpeg documentation decklink part.’decklink’ is used with -f option in every example.

    Then I check the command line, and I can’t find any error with the command.
    Do you have any idea what the problem is ?

    Thanks and best regards,

  • ffmpeg concat : "Unsafe file name"

    19 septembre 2024, par sers

    Trying to convert a bunch of mts-files into a big mp4-file :

    



    stephan@rechenmonster:/mnt/backupsystem/archive2/Videos/20151222/PRIVATE/AVCHD/BDMV$ ~/bin/ffmpeg-git-20160817-64bit-static/ffmpeg -v info -f concat -i <(find STREAM -name '*' -printf "file '$PWD/%p'\n") -deinterlace -r 25 -s hd720 -c:v libx264 -crf 23 -acodec copy -strict -2 ~/tmp/Videos/20151222.mp4
ffmpeg version N-81364-gf85842b-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.1 (Debian 5.4.1-1) 20160803
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio --enable-librtmp --enable-libmfx --enable-libzimg --cc=gcc-5
  libavutil      55. 28.100 / 55. 28.100
  libavcodec     57. 53.100 / 57. 53.100
  libavformat    57. 46.101 / 57. 46.101
  libavdevice    57.  0.102 / 57.  0.102
  libavfilter     6. 51.100 /  6. 51.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  1.100 /  2.  1.100
  libpostproc    54.  0.100 / 54.  0.100
[concat @ 0x56054a0] Unsafe file name '/mnt/backupsystem/archive2/Videos/20151222/PRIVATE/AVCHD/BDMV/STREAM'
/dev/fd/63: Operation not permitted


    



    Any ideas what goes wrong here ? What does the term "unsafe file" mean in this context ?

    


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