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• Anomalie #4562 : Suite #4468 : Unification des CSS pour les boutons et les icônes

  10 février 2021

  Les grands principes de séparation entre la forme et le contenu, oui ok d’accord.

  Mais t’as bien vu que l’objet de cette proposition, c’est justement d’accepter de faire un compromis pour simplifier la vie de tout le monde : à la fois pour maintenir le truc et à la fois quand on veut les utiliser dans le core et les plugins.
  Le constat de départ je rappelle, c’est qu’actuellement c’est bien des classes sémantiques-tout-ça, mais au prix de circonvolutions hypers lourdes dans le css (t’as jeté un coup d’oeil à boutons.css ?).

  Si on est pas content des quelques icônes qui peuvent se ballader d’office dans certains formulaires ou bouts de squelettes, on règle ça en 1 ligne de CSS hein : .icone-spip { display: none }
  Ou même si on veut les garder et les surcharger : .icone-spip svg { display: none } et voilà.
  Ça me semble pas un très gros prix à payer.

• Create 4K video with Mjpeg codec in ffmpeg

  25 novembre 2018, par Sulli

  I’m trying to produce a simple 6 seconds video clip by zooming on an image (.mov output, mjpeg codec). I can get this command to work when I set the output to be 1920x1080 :

  ffmpeg -y -r 25 -nostdin -loop 1 -i input.jpg -vf "zoompan=z='min(zoom+0.0015,1.5)':d=700:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'" -c:v mjpeg -qscale:v 1 -t 6 -s "1920x1080" "test/output.mov"

  but it’s not working anymore when I set the output to be 4K (3840x2160) : the command hangs, is killed or produces a corrupted output.

  My input.jpg resolution is 4240x2832.

  What am I missing ?

  Edit : here is the full log :

  ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  
    configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  
    libavutil      54. 31.100 / 54. 31.100
  
    libavcodec     56. 60.100 / 56. 60.100
  
    libavformat    56. 40.101 / 56. 40.101
  
    libavdevice    56.  4.100 / 56.  4.100
  
    libavfilter     5. 40.101 /  5. 40.101
  
    libavresample   2.  1.  0 /  2.  1.  0
  
    libswscale      3.  1.101 /  3.  1.101
  
    libswresample   1.  2.101 /  1.  2.101
  
    libpostproc    53.  3.100 / 53.  3.100
  
  [mjpeg @ 0x151da00] Changeing bps to 8
  
  Input #0, image2, from 'input.jpg':
  
    Duration: 00:00:00.04, start: 0.000000, bitrate: 760992 kb/s
  
      Stream #0:0: Video: mjpeg, yuvj444p(pc, bt470bg/unknown/unknown), 4240x2832, 25 tbr, 25 tbn, 25 tbc
  
  [swscaler @ 0x153cf80] deprecated pixel format used, make sure you did set range correctly
  
  Output #0, mov, to 'test/output.mov':
  
    Metadata:
  
      encoder         : Lavf56.40.101
  
      Stream #0:0: Video: mjpeg (jpeg / 0x6765706A), yuvj444p(pc), 3840x2160, q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc
  
      Metadata:
  
        encoder         : Lavc56.60.100 mjpeg
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (mjpeg (native) -> mjpeg (native))
  
  [swscaler @ 0x43c82c0] deprecated pixel format used, make sure you did set range correctly
  
  [swscaler @ 0x43c82c0] Warning: data is not aligned! This can lead to a speedloss
  
  [swscaler @ 0x43c7dc0] deprecated pixel format used, make sure you did set range correctly
  
  [swscaler @ 0x444d0a0] deprecated pixel format used, make sure you did set range correctly
  
  [swscaler @ 0x444cdc0] deprecated pixel format used, make sure you did set range correctly
  
      Last message repeated 5 times
  
  [swscaler @ 0x4439e20] deprecated pixel format used, make sure you did set range correctly
  
      Last message repeated 6 times
  
  [swscaler @ 0x43df9c0] deprecated pixel format used, make sure you did set range correctly
  
      Last message repeated 83 times
  
  [output stream 0:0 @ 0x15240c0] 100 buffers queued in output stream 0:0, something may be wrong.
  
  [swscaler @ 0x43df9c0] deprecated pixel format used, make sure you did set range correctly
  
  creer_videos.sh: line 10:    18 Killed                  ffmpeg -y -r 25 -nostdin -loop 1 -i input.jpg -vf "zoompan=z='min(zoom+0.0015,1.5)':d=700:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'" -c:v mjpeg -qscale:v 1 -t 6 -s "3840x2160" "test/output.mov"

• Create video from images, add audio and animation within images without FFMPEG in Android

  28 février 2017, par Vivek Bhatt

  I want to create a video from multiple images without using FFMPEG in Android. Also i have to multiple audios over it. And at last there should be some animation within each images. I have tried this using FFMPEG, but it is taking hell lot of time, let say , 4-5 min for 10 photos. Is there any other way for this or any efficient way ?

  There is 3 way process.

  1. First i create video from each image with audio and added text.
  2. Then i concatenate all the videos into a single video.
  3. At last, i add a background audio to the concatenated video.

  I am sharing the commands here :

  1.
  String[] cmds = "-y"
  , "-r", "1", "-vcodec", "mjpeg" ,"-loop", "1", "-t", "1"
  , "-i", image
  , "-i", audio
  , "-vf"
  , "zoompan=z=’if(lte(zoom,1),1.1,max(1.001,zoom-0.0015))’:d=125,drawbox=y=ih/PHI:color=black@0.4:width=iw:height=120:t=max,drawtext=fontfile=/storage/emulated/0/ffmpeg/font.ttf:text="+text+":fontcolor=white:fontsize=60:x=(w-tw)/2:y=(h/PHI)+th"
  , "-c:v", "libx264"
  , "-preset", "ultrafast", "-t", "5", "-c:a", "aac", "-b:a", "128k", "-pix_fmt", "yuv420p"
  , "video1.mp4" ;

  2.

  String cmd = "-y -i video1.mp4 -i video2.mp4 -i video3.mp4 -filter_complex concat=n=3:v=1:a=1 -preset ultrafast concat_video.mp4 ;

  3.

  cmd = "-y -i bg_audio.mp3 -i concat_video.mp4 -shortest -preset ultrafast -filter_complex [a1][a2]amerge,pan=stereo:c0