Opened 4 years ago

Closed 4 years ago

#3007 closed defect (fixed)

param0 and param1 are ignored for bicubic scaler.

Reported by: YellowOnion Owned by:
Priority: minor Component: documentation
Version: git-master Keywords: scale
Cc: Blocked By:
Blocking: Reproduced by developer: yes
Analyzed by developer: no

Description

I've tried settings these parameters but the bicubic scaler produces the exact same png files no matter what parameter I set for either.

reports included.

Attachments (2)

ffmpeg-20130928-034133.log (8.5 KB) - added by YellowOnion 4 years ago.
ffmpeg-20130928-034154.log (8.5 KB) - added by YellowOnion 4 years ago.

Download all attachments as: .zip

Change History (4)

Changed 4 years ago by YellowOnion

Changed 4 years ago by YellowOnion

comment:1 follow-up: Changed 4 years ago by cehoyos

It should be used as follows:

$ ffmpeg  -i "Inception.2010.720p.BluRay.DTS.x264-ESiR.mkv" -ss 14 -vf scale=854x356:flags=bicubic+print_info:param0=1/3:param1=1/3 -frames 1 Blah-N.png 

This unfortunately crashes with fpe here.
See http://thread.gmane.org/gmane.comp.video.ffmpeg.devel/168974 for a related discussion.

comment:2 in reply to: ↑ 1 Changed 4 years ago by cehoyos

  • Component changed from undetermined to documentation
  • Keywords scale added
  • Priority changed from normal to minor
  • Reproduced by developer set
  • Resolution set to fixed
  • Status changed from new to closed
  • Version changed from unspecified to git-master

Replying to cehoyos:

It should be used as follows:

$ ffmpeg  -i "Inception.2010.720p.BluRay.DTS.x264-ESiR.mkv" -ss 14 -vf scale=854x356:flags=bicubic+print_info:param0=1/3:param1=1/3 -frames 1 Blah-N.png 

Please test, this did not crash (the crash with lanczos was fixed by Michael).

The documentation was improved by Stefano and Michael.

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