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• Mask dynamic logo using ffmpeg

  27 March 2018, by Francesco De Pazzi

  I am trying to detect and hide a logo that dynamically positioned in a video.

  In this video the logo is positioned at the top and after a few minutes down etc.

  it’s possible to detect every time the logo when it changes place and hide it with ffmpeg?

  I tried with delogo but I must tell the position x/y, so it is not possible in my case!

  Thank you very much!

• Mask dynamic logo using ffmpeg

  15 June 2014, by Francesco De Pazzi

  I am trying to detect and hide a logo that dynamically positioned in a video.

  In this video the logo is positioned at the top and after a few minutes down etc.

  it’s possible to detect every time the logo when it changes place and hide it with ffmpeg?

  I tried with delogo but I must tell the position x/y, so it is not possible in my case!

  Thank you very much!

• bash: displaying filtered & dynamic output of ffmpeg

  3 July 2014, by Guillaume

  After this question whose the answer had partially resolved my problem.
  I would like to have a selected result of ffmpeg.
  So, with this command:

  ffmpeg -y -i "${M3U2}" -vcodec copy -acodec copy "${Directory}/${PROG}_${ID}.mkv" 2>&1 | egrep -e '^[[:blank:]]*(Duration|Output|frame)'

  The result is:

  Duration: 00:12:28.52, start: 0.100667, bitrate: 0 kb/s
  
  Output #0, matroska, to '/home/path/file.mkv':

  But in the result I am missing this dynamic line:

  frame= 1834 fps=166 q=-1.0 Lsize=    7120kB time=00:01:13.36 bitrate= 795.0kbits/s

  This line changes every second. How can I modify the command line to display this line? My program should read this line and display the "time" updating in-place. Thanks

  solution:

  ffmpeg -y -i "${M3U2}" -vcodec copy -acodec copy "${Directory}/${PROG}_${ID}.mkv" 2>&1 |
  
        { while read line
  
          do
  
            if $(echo "$line" | grep -q "Duration"); then
  
              echo "$line"
  
            fi
  
            if $(echo "$line" | grep -q "Output"); then
  
              echo "$line"
  
            fi
  
            if $(echo "$line" | grep -q "Stream #0:1 -> #0:1"); then
  
              break
  
            fi
  
          done;
  
          while read -d $'\x0D' line
  
         do
  
            if $(echo "$line" | grep -q "time="); then
  
              echo -en "\r$line"
  
            fi
  
         done; }

  Thanks to ofrommel