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• Fix edge case where ontimeout() does not fire when SM2 fails to init while using SM2_DEFER / lazy-loading

  19 mai 2012, par Scott Schiller

  + script/Copy of soundmanager2.js + script/basic/soundmanager2-basic-jsmin.js + script/basic/soundmanager2-basic-nodebug-jsmin.js + script/basic/soundmanager2-basic-nodebug.js + script/basic/soundmanager2-basic.js m script/soundmanager2-jsmin.js m script/soundmanager2-nodebug-jsmin.js m (...)

• FFMPEG -t outputs more length than it should ?

  17 novembre 2019, par Taapo

  When I run this command :

  /usr/bin/ffmpeg -y -f lavfi -i 
  
  "color=color=black@0.0:size=1080x1080,format=rgba,subtitles=../content/test/test.ssa:alpha=1" 
  
  -c:a aac -c:v png -t "00:00:13.4" -threads 0 "../content/test/test.ssa.mov" -stats

  And load the resulting mov file into any video editor, I get the length

  00:00:13:10

  I have a couple of hundredths of milliseconds of black (empty) space at the end of the video. What am I missing here ?

  I’m gonna include the SSA file here, so it’s a bit more clear :

  [Script Info]
  
  ScriptType: v4.00
  
  PlayResX: 960
  
  PlayResY: 540
  
  PlayDepth: 0
  
  Timer: 100.0
  
  
  
  [V4+ Styles]
  
  Format: Name, Fontname, Fontsize, PrimaryColour, SecondaryColour, OutlineColour, BackColour, Bold, Italic, Underline, StrikeOut, ScaleX, ScaleY, Spacing, Angle, BorderStyle, Outline, Shadow, Alignment, MarginL, MarginR, MarginV, Encoding
  
  Style: Default,Arial,24,&H00FFFFFF,&HFF000000,&HFF000000,&HFF000000,-1,0,0,0,100,100,0,0.00,3,0,0,5,100,100,100,1
  
  
  
  Dialogue: 0,00:00:00.00,00:00:13.400,Default,,0,0,0,,Testing

• How to compress video applying even blur effect

  17 octobre 2016, par Kukuster

  How to compress video applying well-looking apportioned blur effect, like in JPG image ?

  I tried some ffmpeg postprocesing libraries, they are fspp, spp, uspp (takes really long time to render), etc. I almost reached the goal using fspp with parameters 5:60:15 . But blur was stronger than needed, and it’s leave bad artifacts when i try to use less compression. Also uspp is does beautiful and compresses enough, but it’s leave about 50% of video unblured. I also haven’t much time to try all uspp features. Is there resolution special for this purpose ?

  The point is to implement video compression with the only side effect of compression approaches jpeg-compression-like blur or blur-mask-like. Also it would be very good if there is a simple option to choose between :
  1) more compress, less pretty blur / more strong blur ; and 2) less compress, prettier blur / less strong blur.

  I am used to use ffmpeg and i’m running linux, so it would be so nice if there is a way to solve this with ffmpeg.
  Here is my ffmpeg input data about the video streams :

    Duration : 00:01:03.02, start : 0.000000, bitrate : 4010 kb/s
      Stream #0:0(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 1:1 DAR 16:9], 3870 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 47.95 tbc (default)
      Metadata :
        handler_name : VideoHandler
      Stream #0:1(eng) : Audio : aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 133 kb/s (default)
      Metadata :
        handler_name : SoundHandler
  

  Edit : attaching jpeg pictured as example of desired output :