[FFmpeg-trac] #9339(undetermined:new): bff interlaced encode from progressive not working
FFmpeg
trac at avcodec.org
Mon Jul 19 21:32:22 EEST 2021
#9339: bff interlaced encode from progressive not working
-------------------------------------+-------------------------------------
Reporter: daren | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: bff | Blocked By:
interlaced progressive |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
Summary of the bug:
tff interlaced encodes of wrongly (progressive) encoded interlaced footage
used to work. It now '''seems''' to always wrongly encode as bff but label
(mediainfo) it as bff no matter what options are supplied.
How to reproduce:
{{{
% ffmpeg -i input -c:v libx264 -flags +ilme+ildct -top 1 output
ffmpeg version n4.4
built with GCC 11.1.0 (Arch Linux repository)
}}}
Tried a few ffmpeg-static versions out, it breaks at 4.4-static and works
up to 4.2.1-static (4.3.x branches were missing)
It broke fairly recently though, couple weeks/months ago, guessing with
ffmpeg 4.4.
Can provide a file <2.5MB that works fine with ''-flags +ilme+ildct -top
1'' on 4.2.1-static versions but not with n4.4/4.4-static
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Ticket URL: <https://trac.ffmpeg.org/ticket/9339>
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