Body: <p><br/>
  I want to blur some scenes with avconv<br/>
  The ffmpeg command -find it <a href="https://video.stackexchange.com/questions/8264/how-to-blur-a-short-scene-in-a-video">here</a>- is:</p>
  
  <blockquote>
    <p>ffmpeg -i input.avi -vf "boxblur=enable='between(t,22,113)'" -codec:a copy output.avi</p>
  </blockquote>
  
  <p>doesn't work with avconv  </p>
  
  <blockquote>
    <p>avconv -i "video_in" -vf "boxblur=10:1" "video_out"</p>
  </blockquote>
  
  <p>blur the whole video, what can I add to it to blur selected scenes. <br/>
  Thanks</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2014-11-05T03:56:35.007Z
Comments.Text: last progress: `avconv -i "video_in" -vf "select='gte(t,10)*lte(t,20)', boxblur=10:1" "video_out"` but I lose lte 10 and gte 20 black screen `avconv -i "video_in" -vf "select='lte(t,10)'" "select='gte(t,10)*lte(t,20)', boxblur=10:1" "select='gte(t,20)'" "video_out"` doesn't work...
Comments.UserDisplayName: Learner
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2014-11-20T17:38:14.697Z
Comments.Text: last progress:`avconv -i 01.mpg -filter_complex "[0:v]select='lte(t,10)' , copy[out1] ; [0:v]select='gte(t,10)*lte(t,20)' , boxblur=10:1[out2] ;[0:v] select='gte(t,20)' , copy[out3]"....` all what I want is in [OUT1] [OUT2] [OUT3] someone can help me to put it in one -"OUT.mpg"- file
Comments.UserDisplayName: Learner
Tags: <video><libav>
Title: avconv: How to blur scenes?
UserDisplayName: Learner
ThreadText: # avconv: How to blur scenes?
  
  (Asked by: username_0 on 2014-11-03)
  
  I want to blur some scenes with avconv  
  The ffmpeg command -find it [here](https://video.stackexchange.com/questions/8264/how-to-blur-a-short-scene-in-a-video)- is:
  
  > ffmpeg -i input.avi -vf "boxblur=enable='between(t,22,113)'" -codec:a copy output.avi
  
  doesn't work with avconv
  
  > avconv -i "video\_in" -vf "boxblur=10:1" "video\_out"
  
  blur the whole video, what can I add to it to blur selected scenes.   
  Thanks
  
  **Tags:** video, libav
  
  > **Comments:**
  > **username_0**: last progress: `avconv -i "video_in" -vf "select='gte(t,10)*lte(t,20)', boxblur=10:1" "video_out"` but I lose lte 10 and gte 20 black screen `avconv -i "video_in" -vf "select='lte(t,10)'" "select='gte(t,10)*lte(t,20)', boxblur=10:1" "select='gte(t,20)'" "video_out"` doesn't work...  
  > **username_0**: last progress:`avconv -i 01.mpg -filter_complex "[0:v]select='lte(t,10)' , copy[out1] ; [0:v]select='gte(t,10)*lte(t,20)' , boxblur=10:1[out2] ;[0:v] select='gte(t,20)' , copy[out3]"....` all what I want is in [OUT1] [OUT2] [OUT3] someone can help me to put it in one -"OUT.mpg"- file  
  
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  ## 0 answers
  
  