Recherche avancée

Médias (91)

Autres articles (20)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

  • Selection of projects using MediaSPIP

    2 mai 2011, par

    The examples below are representative elements of MediaSPIP specific uses for specific projects.
    MediaSPIP farm @ Infini
    The non profit organizationInfini develops hospitality activities, internet access point, training, realizing innovative projects in the field of information and communication technologies and Communication, and hosting of websites. It plays a unique and prominent role in the Brest (France) area, at the national level, among the half-dozen such association. Its members (...)

  • List of compatible distributions

    26 avril 2011, par

    The table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...)

Sur d’autres sites (3992)

  • QuTip Example 'bloch-sphere-animation' - video renders blank

    15 juillet 2018, par damien murphy.

    On MacOSX Using Python3 running the following example code provided without modification : https://github.com/qutip/qutip-notebooks/blob/master/examples/bloch-sphere-animation.ipynb

    I get a blank video and no errors.

    I have installed libav and ffmpeg so I am not sure what else is missing with any error.

    What codec did you install on mac when running these samples ?

    Looking at the source of qutip I can see what it is using to render the video : https://github.com/qutip/qutip/blob/master/qutip/ipynbtools.py#L392

    anim.save(name + '.mp4', fps=10, writer="avconv", codec="libx264")

    I have avconv on the command line working without errors

    This is the debug outout of matploylib.animation

    INFO:matplotlib.animation:Animation.save using DEBUG:matplotlib.animation:frame
    size in pixels is 576 x 576 INFO:matplotlib.animation:MovieWriter.run :
    running command : [’avconv’, ’-f’, ’rawvideo’, ’-vcodec’, ’rawvideo’,
    ’-s’, ’576x576’, ’-pix_fmt’, ’rgba’, ’-r’, ’10’, ’-i’, ’pipe :’,
    ’-vcodec’, ’libx264’, ’-y’, ’movie.mp4’]
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
    DEBUG:matplotlib.animation:MovieWriter — Command stdout : b’’
    DEBUG:matplotlib.animation:MovieWriter — Command stderr : b"avconv
    version 12.3, Copyright (c) 2000-2018 the Libav developers\n built on
    Feb 13 2018 11:17:07 with Apple LLVM version 9.0.0
    (clang-900.0.39.2)\n[rawvideo @ 0x7f963c000000] Estimating duration
    from bitrate, this may be inaccurate\nInput #0, rawvideo, from
    ’pipe :’ :\n Duration : N/A, start : 0.000000, bitrate : N/A\n Stream

    0:0 : Video : rawvideo\n rgba, 576x576\n 10 fps, 10 tbn\nStream mapping :\n Stream #0:0 -> #0:0 (rawvideo (native) -> h264

    (libx264))\nPress ctrl-c to stop encoding\n[libx264 @ 0x7f963e001800]
    using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX\n[libx264 @
    0x7f963e001800] profile High, level 2.2\n[libx264 @ 0x7f963e001800]
    264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft
    2003-2017 - 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=12
    lookahead_threads=2 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=10 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\nOutput #0, mp4, to ’movie.mp4’ :\n Metadata :\n encoder
     : Lavf57.7.2\n Stream #0:0 : Video : h264 [[33][0][0][0] / 0x0021]\n
    yuv420p, 576x576, q=2-31\n 10 fps, 10 tbn\n Metadata :\n
    encoder : Lavc57.25.0 libx264\n Side data :\n cpb :
    bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1\nframe= 6
    fps= 0 q=0.0 size= 0kB time=10000000000.00 bitrate=
    0.0kbits/s \rframe= 10 fps= 8 q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s \rframe= 13 fps= 7
    q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
    \rframe= 16 fps= 7 q=0.0 size= 0kB time=10000000000.00
    bitrate= 0.0kbits/s \rframe= 19 fps= 6 q=0.0 size= 0kB
    time=10000000000.00 bitrate= 0.0kbits/s \rframe= 22 fps= 6
    q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
    \rframe= 26 fps= 6 q=0.0 size= 0kB time=10000000000.00
    bitrate= 0.0kbits/s \rframe= 30 fps= 6 q=0.0 size= 0kB
    time=10000000000.00 bitrate= 0.0kbits/s \rframe= 33 fps= 6
    q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
    \rframe= 36 fps= 6 q=0.0 size= 0kB time=10000000000.00
    bitrate= 0.0kbits/s \rframe= 39 fps= 6 q=0.0 size= 0kB
    time=10000000000.00 bitrate= 0.0kbits/s \rframe= 42 fps= 6
    q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
    \rframe= 45 fps= 6 q=0.0 size= 0kB time=10000000000.00
    bitrate= 0.0kbits/s \rframe= 48 fps= 6 q=0.0 size= 0kB
    time=10000000000.00 bitrate= 0.0kbits/s \rframe= 51 fps= 6
    q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
    \rframe= 55 fps= 6 q=0.0 size= 0kB time=10000000000.00
    bitrate= 0.0kbits/s \rframe= 59 fps= 6 q=25.0 size= 1kB
    time=10000000000.00 bitrate= 0.0kbits/s \rframe= 63 fps= 6
    q=25.0 size= 1kB time=0.40 bitrate= 19.8kbits/s \rframe=
    67 fps= 6 q=25.0 size= 1kB time=0.80 bitrate= 10.9kbits/s
    \rframe= 71 fps= 6 q=25.0 size= 1kB time=1.20 bitrate=
    7.9kbits/s \rframe= 75 fps= 6 q=25.0 size= 1kB time=1.60 bitrate= 6.4kbits/s \rframe= 79 fps= 6 q=25.0 size= 1kB
    time=2.00 bitrate= 5.5kbits/s \rframe= 82 fps= 6 q=25.0 size=
    1kB time=2.30 bitrate= 5.0kbits/s \rframe= 86 fps= 6 q=25.0
    size= 2kB time=2.70 bitrate= 4.6kbits/s \rframe= 90 fps=
    6 q=25.0 size= 2kB time=3.10 bitrate= 4.2kbits/s \rframe=
    93 fps= 6 q=25.0 size= 2kB time=3.40 bitrate= 4.0kbits/s
    \rframe= 97 fps= 6 q=25.0 size= 2kB time=3.80 bitrate=
    3.8kbits/s \rframe= 101 fps= 6 q=25.0 size= 2kB time=4.20 bitrate= 3.6kbits/s \rframe= 105 fps= 6 q=25.0 size= 2kB
    time=4.60 bitrate= 3.4kbits/s \rframe= 109 fps= 6 q=25.0 size=
    2kB time=5.00 bitrate= 3.3kbits/s \rframe= 112 fps= 6 q=25.0
    size= 2kB time=5.30 bitrate= 3.2kbits/s \rframe= 116 fps=
    6 q=25.0 size= 2kB time=5.70 bitrate= 3.2kbits/s \rframe=
    120 fps= 6 q=25.0 size= 2kB time=6.10 bitrate= 3.1kbits/s
    \rframe= 123 fps= 6 q=25.0 size= 2kB time=6.40 bitrate=
    3.0kbits/s \rframe= 126 fps= 6 q=25.0 size= 2kB time=6.70 bitrate= 3.0kbits/s \rframe= 129 fps= 6 q=25.0 size= 2kB
    time=7.00 bitrate= 2.9kbits/s \rframe= 132 fps= 6 q=25.0 size=
    3kB time=7.30 bitrate= 2.9kbits/s \rframe= 135 fps= 6 q=25.0
    size= 3kB time=7.60 bitrate= 2.8kbits/s \rframe= 138 fps=
    6 q=25.0 size= 3kB time=7.90 bitrate= 2.8kbits/s \rframe=
    141 fps= 6 q=25.0 size= 3kB time=8.20 bitrate= 2.8kbits/s
    \rframe= 144 fps= 6 q=25.0 size= 3kB time=8.50 bitrate=
    2.7kbits/s \rframe= 148 fps= 6 q=25.0 size= 3kB time=8.90 bitrate= 2.7kbits/s \rframe= 150 fps= 6 q=-1.0 Lsize= 7kB
    time=14.70 bitrate= 4.1kbits/s \r\nvideo:4kB audio:0kB other
    streams:0kB global headers:0kB muxing overhead : 74.948143%\n[libx264 @
    0x7f963e001800] frame I:1 Avg QP : 6.00 size : 112\n[libx264 @
    0x7f963e001800] frame P:38 Avg QP : 6.21 size : 30\n[libx264 @
    0x7f963e001800] frame B:111 Avg QP : 9.67 size : 22\n[libx264 @
    0x7f963e001800] consecutive B-frames : 1.3% 0.0% 0.0%
    98.7%\n[libx264 @ 0x7f963e001800] mb I I16..4 : 100.0% 0.0% 0.0%\n[libx264 @ 0x7f963e001800] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%\n[libx264 @
    0x7f963e001800] mb B I16..4 : 0.0% 0.0% 0.0% B16..8 : 0.0% 0.0%
    0.0% direct : 0.0% skip:100.0%\n[libx264 @ 0x7f963e001800] 8x8 transform intra:0.0%\n[libx264 @ 0x7f963e001800] coded y,uvDC,uvAC
    intra : 0.0% 0.0% 0.0% inter : 0.0% 0.0% 0.0%\n[libx264 @
    0x7f963e001800] i16 v,h,dc,p : 97% 0% 3% 0%\n[libx264 @
    0x7f963e001800] i8c dc,h,v,p : 100% 0% 0% 0%\n[libx264 @
    0x7f963e001800] Weighted P-Frames : Y:0.0% UV:0.0%\n[libx264 @
    0x7f963e001800] kb/s:1.95\n"

  • FFmpeg - Concat videos with different time base [duplicate]

    3 mai 2019, par Xys

    This question already has an answer here :

    I’m trying to concat videos with the concat demuxer, but it does not work when using one video ("video2.mp4" below). By does not work, I mean playing the concatenated video on a player will work until the second video part starts (it just cannot read the video anymore). It works with the concat filter though. They are both mp4 videos, so I think it’s because of the time base ? I can concat other videos with the concat demuxer and it works fine (even with different resolutions/bitrate). It only happens when trying to concat "video2.mp4".

    Also, I have a lot of warning/errors like this, probably when ffmpeg starts concatenating the 2nd video :

    [mp4 @ 0x7f847a814800] Non-monotonous DTS in output stream 0:0; previous: 906906, current: 302359; changing to 906907. This may result in incorrect timestamps in the output file.

    What would be the best way to have a minimum concat time ? Do I really need to use the concat filter or can I change the time base of "video1.mp4" if it’s really the problem ?

    Any help would be appreciated, thanks !

    Video 1 :

    ffprobe version 3.2.2 Copyright (c) 2007-2016 the FFmpeg developers
     built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
     libavutil      55. 34.100 / 55. 34.100
     libavcodec     57. 64.101 / 57. 64.101
     libavformat    57. 56.100 / 57. 56.100
     libavdevice    57.  1.100 / 57.  1.100
     libavfilter     6. 65.100 /  6. 65.100
     libavresample   3.  1.  0 /  3.  1.  0
     libswscale      4.  2.100 /  4.  2.100
     libswresample   2.  3.100 /  2.  3.100
     libpostproc    54.  1.100 / 54.  1.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video1.mp4':
     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: isommp42
       creation_time   : 2016-08-17T22:50:35.000000Z
     Duration: 00:00:10.11, start: 0.000000, bitrate: 38018 kb/s
       Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1696x848, 37832 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc (default)
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : VideoHandle
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s (default)
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : SoundHandle

    Video 2 :

    ffprobe version 3.2.2 Copyright (c) 2007-2016 the FFmpeg developers
     built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
     libavutil      55. 34.100 / 55. 34.100
     libavcodec     57. 64.101 / 57. 64.101
     libavformat    57. 56.100 / 57. 56.100
     libavdevice    57.  1.100 / 57.  1.100
     libavfilter     6. 65.100 /  6. 65.100
     libavresample   3.  1.  0 /  3.  1.  0
     libswscale      4.  2.100 /  4.  2.100
     libswresample   2.  3.100 /  2.  3.100
     libpostproc    54.  1.100 / 54.  1.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video2.mp4':
     Metadata:
       major_brand     : mp42
       minor_version   : 0
       compatible_brands: mp42mp41
       creation_time   : 2017-01-06T22:30:23.000000Z
     Duration: 00:00:08.19, start: 0.000000, bitrate: 101474 kb/s
       Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 4096x2048 [SAR 1:1 DAR 2:1], 101549 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc (default)
       Metadata:
         creation_time   : 2017-01-06T22:30:23.000000Z
         handler_name    : ?Mainconcept Video Media Handler
         encoder         : AVC Coding
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 125 kb/s (default)
       Metadata:
         creation_time   : 2017-01-06T22:30:23.000000Z
         handler_name    : #Mainconcept MP4 Sound Media Handler

    FFMpeg Command :

    ffmpeg -f concat -safe 0 -i concat.txt -c copy result.mp4

    concat.txt :

    file '/path/to/video1.mp4'
    file '/path/to/video2.mp4'

    Command result :

    ffmpeg version 3.2.2 Copyright (c) 2000-2016 the FFmpeg developers
     built with Apple LLVM version 8.0.0 (clang-800.0.42.1)
     configuration: --prefix=/usr/local/Cellar/ffmpeg/3.2.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
     libavutil      55. 34.100 / 55. 34.100
     libavcodec     57. 64.101 / 57. 64.101
     libavformat    57. 56.100 / 57. 56.100
     libavdevice    57.  1.100 / 57.  1.100
     libavfilter     6. 65.100 /  6. 65.100
     libavresample   3.  1.  0 /  3.  1.  0
     libswscale      4.  2.100 /  4.  2.100
     libswresample   2.  3.100 /  2.  3.100
     libpostproc    54.  1.100 / 54.  1.100
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbd8b808c00] Auto-inserting h264_mp4toannexb bitstream filter
    Input #0, concat, from 'concat.txt':
     Duration: N/A, start: 0.000000, bitrate: 38021 kb/s
       Stream #0:0(eng): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p, 1696x848, 37832 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 180k tbc
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : VideoHandle
       Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 189 kb/s
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : SoundHandle
    Output #0, mp4, to 'result.mp4':
     Metadata:
       encoder         : Lavf57.56.100
       Stream #0:0(eng): Video: h264 (Baseline) ([33][0][0][0] / 0x0021), yuv420p, 1696x848, q=2-31, 37832 kb/s, 29.97 fps, 29.97 tbr, 90k tbn, 90k tbc
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : VideoHandle
       Stream #0:1(eng): Audio: aac (LC) ([64][0][0][0] / 0x0040), 48000 Hz, stereo, 189 kb/s
       Metadata:
         creation_time   : 2016-08-18T00:02:24.000000Z
         handler_name    : SoundHandle
    Stream mapping:
     Stream #0:0 -> #0:0 (copy)
     Stream #0:1 -> #0:1 (copy)
    Press [q] to stop, [?] for help
    frame=  112 fps=0.0 q=-1.0 size=   12701kB time=00:00:03.70 bitrate=28092.2kbits/s speed= 7.4x
    frame=  151 fps=151 q=-1.0 size=   18853kB time=00:00:05.00 bitrate=30857.5kbits/s speed=   5x
    frame=  224 fps=149 q=-1.0 size=   30042kB time=00:00:07.44 bitrate=33074.8kbits/s speed=4.95x
    frame=  268 fps=134 q=-1.0 size=   36596kB time=00:00:08.90 bitrate=33650.8kbits/s speed=4.44x
    [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fbd8a808000] Auto-inserting h264_mp4toannexb bitstream filter.9x
    [mp4 @ 0xb545d000] Non-monotonous DTS in output stream 0:1; previous: 484352, current: 445939; changing to 484353. This may result in incorrect timestamps in the output file.
    [concat @ 0xb545c400] DTS 304057 < 906906 out of order
    [mp4 @ 0xb545d000] Non-monotonous DTS in output stream 0:0; previous: 906906, current: 304057; changing to 906907. This may result in incorrect timestamps in the output file.
    [mp4 @ 0xb545d000] Non-monotonous DTS in output stream 0:1; previous: 484353, current: 446963; changing to 484354. This may result in incorrect timestamps in the output file.
    ...
    ... like 100 DTS errors ...
    ...
    [mp4 @ 0xb545d000] Non-monotonous DTS in output stream 0:0; previous: 907150, current: 548301; changing to 907151. This may result in incorrect timestamps in the output file.
    frame=  548 fps=169 q=-1.0 Lsize=  148399kB time=00:00:18.28 bitrate=66493.7kbits/s speed=5.64x
    video:148027kB audio:359kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.008622%

    Thank you in advance !

  • Evolution #4149 : UI System Fonts pour l’espace privé

    1er juillet 2018, par Peet du

    Github et Bootstrap on fait marche arrière. Manifestement trop de problèmes sous Windows.
    voir Not ready yet : https://infinnie.github.io/blog/2017/systemui.html

    Sans doute peut on fermer ce ticket et en ouvrir un autre concernant Typo et taille de typo pour le back-office ?