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  • Les vidéos

    21 avril 2011, par

    Comme les documents de type "audio", Mediaspip affiche dans la mesure du possible les vidéos grâce à la balise html5 .
    Un des inconvénients de cette balise est qu’elle n’est pas reconnue correctement par certains navigateurs (Internet Explorer pour ne pas le nommer) et que chaque navigateur ne gère en natif que certains formats de vidéos.
    Son avantage principal quant à lui est de bénéficier de la prise en charge native de vidéos dans les navigateur et donc de se passer de l’utilisation de Flash et (...)

  • Contribute to a better visual interface

    13 avril 2011

    MediaSPIP is based on a system of themes and templates. Templates define the placement of information on the page, and can be adapted to a wide range of uses. Themes define the overall graphic appearance of the site.
    Anyone can submit a new graphic theme or template and make it available to the MediaSPIP community.

  • Script d’installation automatique de MediaSPIP

    25 avril 2011, par

    Afin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
    Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
    La documentation de l’utilisation du script d’installation (...)

Sur d’autres sites (4464)

  • Prevent libavformat (FFmpeg) from adding "ENCODER" tag to output / help stripping the tags

    2 mars 2014, par Wyatt8740

    I made a bash script that transfers audio or video metadata from one file to another, regardless of media container format, via FFMpeg. My problem is that FFMpeg consistently adds a 'ENCODER' tag.

    Example :

    Before running through FFMpeg :

     File : track01.cdda.flac

      Metadata:
    
    ALBUM           : Wish You Were Here
    
    ARTIST          : Pink Floyd
    
    COPYRIGHT       : 1975 Harvest Records
    
    DATE            : 1975
    
    GENRE           : Experimental Rock
    
    TITLE           : Shine On You Crazy Diamond
    
    track           : 1

    After running through FFMpeg :

     File : track01-iphone-alac.m4a

      Metadata:
    
    ALBUM=Wish You Were Here
    
    ARTIST=Pink Floyd
    
    COPYRIGHT=1975 Harvest Records
    
    DATE=1975
    
    GENRE=Experimental Rock
    
    TITLE=Shine On You Crazy Diamond
    
    track=1
    
    ENCODER=Lavf55.12.100

    So really, I want to either force FFMpeg to not add the 'ENCODER' tag, or I want to strip that tag off afterwards. Is there a way to do this ? I really don't want to spend hours trying to compile FFMpeg again on my Pentium 4 HT - the only working computer I have at the moment. I'd prefer not to have to use another program unless it's related enough to FFMpeg or MPlayer/Mencoder that I won't have to install anything new if I have those installed.

  • Prevent libavformat (FFmpeg) from adding "ENCODER" tag to output / stripping tags

    1er mars 2014, par Wyatt8740

    I made a bash script that transfers audio or video metadata from one file to another, regardless of media container format, via FFMpeg. My problem is that FFMpeg consistently adds a 'ENCODER' tag.

    Example :

    Before running through FFMpeg :

     File : track01.cdda.flac

      Metadata:
    
    ALBUM           : Wish You Were Here
    
    ARTIST          : Pink Floyd
    
    COPYRIGHT       : 1975 Harvest Records
    
    DATE            : 1975
    
    GENRE           : Experimental Rock
    
    TITLE           : Shine On You Crazy Diamond
    
    track           : 1

    After running through FFMpeg :

     File : track01-iphone-alac.m4a

      Metadata:
    
    ALBUM=Wish You Were Here
    
    ARTIST=Pink Floyd
    
    COPYRIGHT=1975 Harvest Records
    
    DATE=1975
    
    GENRE=Experimental Rock
    
    TITLE=Shine On You Crazy Diamond
    
    track=1
    
    ENCODER=Lavf55.12.100

    So really, I want to either force FFMpeg to not add the 'ENCODER' tag, or I want to strip that tag off afterwards. Is there a way to do this ? I really don't want to spend hours trying to compile FFMpeg again on my Pentium 4 HT - the only working computer I have at the moment. I'd prefer not to have to use another program unless it's related enough to FFMpeg or MPlayer/Mencoder that I won't have to install anything new if I have those installed.

  • FFmpeg fontcolor_expr to dynamically change fontcolor over time

    26 juin 2017, par Matthew

    I’m using Fluent-FFmpeg with Node.JS to create videos with text overlaid on them and I’m wanting to change the color of the text as the video progresses.

    My filters follow this pattern :

    drawtext=enable='between(t,18.93,20.28)':fontfile=fonts/cousine-bold.ttf:fontsize=144:fontcolor_expr=%{expr\\\: if(between(t\\, 0\\, 20)\\, 888888\\, 111111)}:x=82:y=288:text='PROGRAMMING'

    And it prints out this stuff :

    ffmpeg version 3.3.2 Copyright (c) 2000-2017 the FFmpeg developers
    
  built with Apple LLVM version 8.1.0 (clang-802.0.42)
    
  configuration: --prefix=/usr/local/Cellar/ffmpeg/3.3.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-libfreetype --enable-libmp3lame --enable-libx264 --enable-libxvid --enable-opencl --disable-lzma --enable-vda
    
  libavutil      55. 58.100 / 55. 58.100
    
  libavcodec     57. 89.100 / 57. 89.100
    
  libavformat    57. 71.100 / 57. 71.100
    
  libavdevice    57.  6.100 / 57.  6.100
    
  libavfilter     6. 82.100 /  6. 82.100
    
  libavresample   3.  5.  0 /  3.  5.  0
    
  libswscale      4.  6.100 /  4.  6.100
    
  libswresample   2.  7.100 /  2.  7.100
    
  libpostproc    54.  5.100 / 54.  5.100
    
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'uploads/0c719e39820366bc62c8fd66a6327828':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    creation_time   : 2017-06-23T00:19:46.000000Z
    
    com.apple.quicktime.make: Apple
    
    com.apple.quicktime.model: MacBookPro9,2
    
    com.apple.quicktime.software: Mac OS X 10.12.5 (16F73)
    
    com.apple.quicktime.creationdate: 2017-06-22T17:18:42-0700
    
  Duration: 00:00:22.00, start: 0.000000, bitrate: 3408 kb/s
    
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709, progressive), 1280x720 [SAR 1:1 DAR 16:9], 3091 kb/s, 15 fps, 15 tbr, 30k tbn, 50 tbc (default)
    
    Metadata:
    
      creation_time   : 2017-06-23T00:19:46.000000Z
    
      handler_name    : Core Media Data Handler
    
      encoder         : H.264
    
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 316 kb/s (default)
    
    Metadata:
    
      creation_time   : 2017-06-23T00:19:46.000000Z
    
      handler_name    : Core Media Data Handler
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
    
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
    
Press [q] to stop, [?] for help
    
[libx264 @ 0x7ff72e810a00] using SAR=1/1
    
[libx264 @ 0x7ff72e810a00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
[libx264 @ 0x7ff72e810a00] profile High, level 3.1
    
[libx264 @ 0x7ff72e810a00] 264 - core 148 r2748 97eaef2 - 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=15 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
    
Output #0, mp4, to './outputFile.mp4':
    
  Metadata:
    
    major_brand     : qt  
    
    minor_version   : 0
    
    compatible_brands: qt  
    
    com.apple.quicktime.creationdate: 2017-06-22T17:18:42-0700
    
    com.apple.quicktime.make: Apple
    
    com.apple.quicktime.model: MacBookPro9,2
    
    com.apple.quicktime.software: Mac OS X 10.12.5 (16F73)
    
    encoder         : Lavf57.71.100
    
    Stream #0:0(und): Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], q=-1--1, 15 fps, 15360 tbn, 15 tbc (default)
    
    Metadata:
    
      creation_time   : 2017-06-23T00:19:46.000000Z
    
      handler_name    : Core Media Data Handler
    
      encoder         : Lavc57.89.100 libx264
    
    Side data:
    
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
    
    Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 128 kb/s (default)
    
    Metadata:
    
      creation_time   : 2017-06-23T00:19:46.000000Z
    
      handler_name    : Core Media Data Handler
    
      encoder         : Lavc57.89.100 aac
    
frame=   52 fps=0.0 q=27.0 size=      37kB time=00:00:04.66 bitrate=  65.7kbits/s speed=8.74x    
    
frame=   72 fps= 70 q=27.0 size=     187kB time=00:00:06.03 bitrate= 253.4kbits/s speed=5.83x    
    
frame=   95 fps= 61 q=27.0 size=     358kB time=00:00:07.52 bitrate= 390.4kbits/s speed=4.82x    
    
frame=  117 fps= 57 q=27.0 size=     569kB time=00:00:08.98 bitrate= 518.9kbits/s speed=4.35x    
    
frame=  137 fps= 53 q=27.0 size=     732kB time=00:00:10.32 bitrate= 580.2kbits/s speed=4.03x    
    
frame=  159 fps= 52 q=27.0 size=     942kB time=00:00:11.79 bitrate= 654.7kbits/s speed=3.84x    
    
frame=  180 fps= 50 q=27.0 size=    1110kB time=00:00:13.18 bitrate= 689.5kbits/s speed=3.67x    
    
frame=  204 fps= 50 q=27.0 size=    1331kB time=00:00:14.78 bitrate= 737.2kbits/s speed= 3.6x    
    
frame=  223 fps= 48 q=27.0 size=    1486kB time=00:00:16.06 bitrate= 757.9kbits/s speed=3.49x    
    
frame=  248 fps= 48 q=27.0 size=    1708kB time=00:00:17.71 bitrate= 789.7kbits/s speed=3.46x    
    
frame=  266 fps= 47 q=27.0 size=    1859kB time=00:00:18.92 bitrate= 805.0kbits/s speed=3.35x    
    
frame=  285 fps= 46 q=27.0 size=    2013kB time=00:00:20.19 bitrate= 816.4kbits/s speed=3.28x    
    
[drawtext @ 0x7ff72d84bc00] Cannot find color '888888.000000'
    
    Last message repeated 9 times
    
frame=  308 fps= 46 q=27.0 size=    2224kB time=00:00:21.75 bitrate= 837.5kbits/s speed=3.27x    
    
frame=  330 fps= 46 q=27.0 size=    2401kB time=00:00:21.96 bitrate= 895.5kbits/s speed=3.06x    
    
frame=  330 fps= 41 q=-1.0 Lsize=    2834kB time=00:00:22.00 bitrate=1055.0kbits/s speed=2.73x    
    
video:2484kB audio:338kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.441003%
    
[libx264 @ 0x7ff72e810a00] frame I:22    Avg QP:13.64  size: 47604
    
[libx264 @ 0x7ff72e810a00] frame P:154   Avg QP:16.76  size:  8574
    
[libx264 @ 0x7ff72e810a00] frame B:154   Avg QP:19.42  size:  1138
    
[libx264 @ 0x7ff72e810a00] consecutive B-frames:  6.7% 93.3%  0.0%  0.0%
    
[libx264 @ 0x7ff72e810a00] mb I  I16..4: 85.1% 13.3%  1.6%
    
[libx264 @ 0x7ff72e810a00] mb P  I16..4:  5.5%  3.1%  0.0%  P16..4: 41.5%  4.0%  5.5%  0.0%  0.0%    skip:40.4%
    
[libx264 @ 0x7ff72e810a00] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8: 14.7%  0.1%  0.0%  direct: 4.7%  skip:80.4%  L0:28.0% L1:71.4% BI: 0.7%
    
[libx264 @ 0x7ff72e810a00] 8x8 transform intra:21.7% inter:84.8%
    
[libx264 @ 0x7ff72e810a00] coded y,uvDC,uvAC intra: 60.5% 98.6% 92.9% inter: 6.0% 24.3% 3.1%
    
[libx264 @ 0x7ff72e810a00] i16 v,h,dc,p: 35% 19% 43%  3%
    
[libx264 @ 0x7ff72e810a00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10%  7% 80%  1%  1%  1%  1%  0%  0%
    
[libx264 @ 0x7ff72e810a00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 20% 45%  0%  0%  0%  0%  0%  0%
    
[libx264 @ 0x7ff72e810a00] i8c dc,h,v,p: 77%  9% 10%  4%
    
[libx264 @ 0x7ff72e810a00] Weighted P-Frames: Y:0.0% UV:0.0%
    
[libx264 @ 0x7ff72e810a00] ref P L0: 75.3%  0.3% 17.1%  7.3%
    
[libx264 @ 0x7ff72e810a00] ref B L0: 80.0% 20.0%
    
[libx264 @ 0x7ff72e810a00] kb/s:924.66
    
[aac @ 0x7ff72e812200] Qavg: 2159.960

    In particular this annoying bit :

    [drawtext @ 0x7ff72d84bc00] Cannot find color '888888.000000'

    However, it would be really nice to do something like this :

    fontcolor_expr=%{expr\\\\: if(between(t\\, 0\\, 20)\\, pink\\, white)}

    Which prints out this error :

    [Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
frame=  287 fps= 46 q=27.0 size=    2023kB time=00:00:20.31 bitrate= 815.9kbits/s speed=3.27x    
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Undefined constant or missing '(' in 'pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] [Eval @ 0x7fff5f7760c0] Missing ')' or too many args in 'if(between(t,0,20),pink,white)'
    
[Parsed_drawtext_0 @ 0x7ff3cf523300] Expression 'if(between(t, 0, 20), pink, white)' for the expr text expansion function is not valid

    There aren’t a lot of examples of fontcolor_expr, so I wanted to see if anyone had experience with this. Any tips on changing fonrcolors dynamically without creating multiple filters ?

    Please note that fontcolor_expr=white and fontcolor_expr=888888 are valid and create videos with a fixed font color.

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