Opened 7 years ago

Closed 6 years ago

#4403 closed defect (needs_more_info)

The early part of video after convert become fuzzy

Reported by: Kane Owned by:
Priority: normal Component: undetermined
Version: 2.2.14 Keywords:
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

Video :
http://s3-us-west-2.amazonaws.com/qiniu-bs/vague.mp4

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

I found the early part of result is vague,i need your help

Change History (6)

comment:1 by Kane, 7 years ago

Component: undeterminedffmpeg
Priority: normalimportant
Version: unspecified2.2.14

comment:2 by Kane, 7 years ago

Summary: The early part of video after conver become fuzzyThe early part of video after convert become fuzzy

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

Last edited 7 years ago by Kane (previous) (diff)

comment:3 by Michael Niedermayer, 7 years ago

is this a regression ?
is this reproduceable with git master ?

in reply to:  3 comment:4 by Kane, 7 years ago

Replying to michael:

is this a regression ?
is this reproduceable with git master ?

I can't understand

comment:5 by Carl Eugen Hoyos, 6 years ago

Component: ffmpegundetermined
Priority: importantnormal

Please test current FFmpeg git head and please provide the command line that allows to reproduce your issue together with the complete, uncut console output to make this a valid ticket. Do not use -loglevel warning when reporting issues here.

comment:6 by Carl Eugen Hoyos, 6 years ago

Resolution: needs_more_info
Status: newclosed
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