[FFmpeg-trac] #4403(ffmpeg:new): The early part of video after convert become fuzzy (was: The early part of video after conver become fuzzy)

[FFmpeg]

#4403: The early part of video after convert become fuzzy
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             Reporter:  needkane   |                    Owner:
                 Type:  defect     |                   Status:  new
             Priority:  important  |                Component:  ffmpeg
              Version:  2.2.14     |               Resolution:
             Keywords:             |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
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Comment (by needkane):

 Command :
 '''ffmpeg -loglevel warning -i vague.mp4 -movflags faststart -coder 0 -g
 30 -qmax 51 -partitions +parti4x4+partp8x8+partb8x8 -rc_eq
 'blurCplx(1-qComp)' -qmin 10 -trellis 1 -pix_fmt yuv420p -preset superfast
 -level 3.0 -codec:s mov_text -b:v 60608 -codec:v libx264 -pix_fmt yuv420p
 -codec:a libfaac -map_metadata 0:g -vf
 [in]scale=trunc'(in_w/2)*2:trunc(in_h/2)'*2[scale2] -f mp4 -y
 result.mp4'''

 Result:
 http://s3-us-west-2.amazonaws.com/qiniu-bs/result.mp4

 I want to know why,and how to resolve it

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Ticket URL: <https://trac.ffmpeg.org/ticket/4403#comment:2>
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