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  • Publier sur MédiaSpip

    13 juin 2013

    Puis-je poster des contenus à partir d’une tablette Ipad ?
    Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir

  • Initialisation de MediaSPIP (préconfiguration)

    20 février 2010, par

    Lors de l’installation de MediaSPIP, celui-ci est préconfiguré pour les usages les plus fréquents.
    Cette préconfiguration est réalisée par un plugin activé par défaut et non désactivable appelé MediaSPIP Init.
    Ce plugin sert à préconfigurer de manière correcte chaque instance de MediaSPIP. Il doit donc être placé dans le dossier plugins-dist/ du site ou de la ferme pour être installé par défaut avant de pouvoir utiliser le site.
    Dans un premier temps il active ou désactive des options de SPIP qui ne le (...)

  • Les formats acceptés

    28 janvier 2010, par

    Les commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
    ffmpeg -codecs ffmpeg -formats
    Les format videos acceptés en entrée
    Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
    Les formats vidéos de sortie possibles
    Dans un premier temps on (...)

Sur d’autres sites (6636)

  • Fill output video with black screen in case of missing the input stream or switch input UDP stream to another source

    13 mai 2018, par Omar Mahmoud

    I am using FFMPEG to record a streams from UDP sources, but unfortunately once the input stream missed, the ffmpeg stop recording, then append video to file once the stream observed by the server again.

    And as these recording files is time based so, I need fill video with black screen in case of missing the input stream.

    ffmpeg -i ’udp ://224.12.12.1:4000’ -t 00:45:00 -vcodec copy -acodec copy -f mpegts /record/eEs1526947.ts

    How can I do this, either by ffmpeg or other CLI based service/process ?

  • FFMPEG : change input without stoping proccess

    10 juillet 2018, par admin883

    how i can change input on ffmpeg without stop process on linux Debian 9 ?
    im user decklink input and i need to change to file mp4 input.

    ffmpeg -f decklink -i 'DeckLink Mini Recorder' -vf setpts=PTS-STARTPTS -pix_fmt uyvy422 -s 1920x1080 -r 25000/1000 -f decklink 'DeckLink Mini Monitor'

  • FFMPEG : custom sequence input images

    31 juillet 2018, par Dmitriy Puchkov

    I created a video from a set of images.

    The command look like :

    ffmpeg -i bg.jpeg -i img_%d.png -filter_complex overlay=5:H-h-5[b]-shortest testvid.mp4

    Problem :

    The input -i img_%d.png means img_0.png, img_1.png, img_2.png, ...

    But I have custom sequence like this : {img_0.png, img_1.png, img_1.png, img_2.png, img_1.png, img5.png, img_4.png}

    Question :

    Can I put my image sequence into input of ffmpeg ?

    Updated

    cmd :

    ffmpeg -i bg.jpeg -f concat -fflags +genpts -i test.txt -filter_complex overlay=5:H-h-5 -shortest testvid.mp4

    output :

    ffmpeg version 3.1.1 Copyright (c) 2000-2016 the FFmpeg developers
    
  built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3)
    
  configuration: --enable-gpl --enable-libx264 --enable-libfreetype
    
  libavutil      55. 28.100 / 55. 28.100
    
  libavcodec     57. 48.101 / 57. 48.101
    
  libavformat    57. 41.100 / 57. 41.100
    
  libavdevice    57.  0.101 / 57.  0.101
    
  libavfilter     6. 47.100 /  6. 47.100
    
  libswscale      4.  1.100 /  4.  1.100
    
  libswresample   2.  1.100 /  2.  1.100
    
  libpostproc    54.  0.100 / 54.  0.100
    
Input #0, image2, from 'bg.jpeg':
    
  Duration: 00:00:00.04, start: 0.000000, bitrate: 47329 kb/s
    
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown), 600x800 [SAR 1:1 DAR 3:4], 25 tbr, 25 tbn, 25 tbc
    
Input #1, concat, from 'test.txt':
    
  Duration: N/A, start: 0.000000, bitrate: N/A
    
    Stream #1:0: Video: png, pal8(pc), 200x200, 25 tbr, 25 tbn, 25 tbc
    
File 'testvid.mp4' already exists. Overwrite ? [y/N] y
    
[swscaler @ 0x2a18360] deprecated pixel format used, make sure you did set range correctly
    
[libx264 @ 0x2a05d80] using SAR=1/1
    
[libx264 @ 0x2a05d80] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
    
[libx264 @ 0x2a05d80] profile High, level 3.1
    
[libx264 @ 0x2a05d80] 264 - core 148 r2705 3f5ed56 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
    
[mp4 @ 0x2a04b20] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead.
    
Output #0, mp4, to 'testvid.mp4':
    
  Metadata:
    
    encoder         : Lavf57.41.100
    
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 600x800 [SAR 1:1 DAR 3:4], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
    
    Metadata:
    
      encoder         : Lavc57.48.101 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
Stream mapping:
    
  Stream #0:0 (mjpeg) -> overlay:main
    
  Stream #1:0 (png) -> overlay:overlay
    
  overlay -> Stream #0:0 (libx264)
    
Press [q] to stop, [?] for help
    
[concat @ 0x29e2400] DTS -230575710986777 < 0 out of order
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
DTS -230575710986777, next:40000 st:0 invalid dropping
    
PTS -230575710986777, next:40000 invalid dropping st:0
    
frame=    4 fps=0.0 q=-1.0 Lsize=      39kB time=00:00:00.04 bitrate=8050.9kbits/s dup=0 drop=65 speed=0.516x    
    
video:39kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 2.222729%
    
[libx264 @ 0x2a05d80] frame I:1     Avg QP:24.64  size: 37536
    
[libx264 @ 0x2a05d80] frame P:1     Avg QP:27.18  size:  1085
    
[libx264 @ 0x2a05d80] frame B:2     Avg QP:29.93  size:    73
    
[libx264 @ 0x2a05d80] consecutive B-frames: 25.0%  0.0% 75.0%  0.0%
    
[libx264 @ 0x2a05d80] mb I  I16..4:  1.7% 86.1% 12.2%
    
[libx264 @ 0x2a05d80] mb P  I16..4:  0.0%  0.0%  0.0%  P16..4:  1.7%  1.3%  1.5%  0.0%  0.0%    skip:95.5%
    
[libx264 @ 0x2a05d80] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  2.4%  0.0%  0.0%  direct: 0.0%  skip:97.6%  L0:62.6% L1:37.4% BI: 0.0%
    
[libx264 @ 0x2a05d80] 8x8 transform intra:86.1% inter:33.9%
    
[libx264 @ 0x2a05d80] coded y,uvDC,uvAC intra: 91.5% 84.4% 38.5% inter: 0.6% 0.4% 0.1%
    
[libx264 @ 0x2a05d80] i16 v,h,dc,p:  9% 12%  3% 76%
    
[libx264 @ 0x2a05d80] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 19% 17%  8%  4%  5%  5%  7% 10%
    
[libx264 @ 0x2a05d80] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 18% 10% 10%  9%  7% 10%  8%  7%
    
[libx264 @ 0x2a05d80] i8c dc,h,v,p: 45% 21% 26%  8%
    
[libx264 @ 0x2a05d80] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x2a05d80] ref B L0: 84.2% 15.8%
    
[libx264 @ 0x2a05d80] kb/s:1938.35

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