Opened 13 years ago

Closed 13 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 13 years ago.
ffmpeg-20130928-034154.log​ (8.5 KB ) - added by YellowOnion 13 years ago.

Download all attachments as: .zip

Change History (4)

by YellowOnion, 13 years ago

Attachment: ffmpeg-20130928-034133.log​ added

by YellowOnion, 13 years ago

Attachment: ffmpeg-20130928-034154.log​ added

comment:1 by Carl Eugen Hoyos, 13 years ago

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.

in reply to:  1 comment:2 by Carl Eugen Hoyos, 13 years ago

Component: undetermined → documentation
Keywords: scale added
Priority: normal → minor
Reproduced by developer: set
Resolution: → fixed
Status: new → closed
Version: unspecified → 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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