[FFmpeg-trac] #3968(documentation:open): fieldmatch does not work for mixed telecined and progressive content (was: fieldmatch with decimate generates out-of-sync video)
FFmpeg
trac at avcodec.org
Mon Sep 22 19:15:52 CEST 2014
#3968: fieldmatch does not work for mixed telecined and progressive content
-------------------------------------+-------------------------------------
Reporter: myleal | Owner:
Type: defect | Status: open
Priority: minor | Component:
Version: git-master | documentation
Keywords: fieldmatch | Resolution:
Blocking: | Blocked By:
Analyzed by developer: 0 | Reproduced by developer: 1
-------------------------------------+-------------------------------------
Changes (by cehoyos):
* status: new => open
* reproduced: 0 => 1
* component: undetermined => documentation
* priority: normal => minor
* version: unspecified => git-master
* keywords: => fieldmatch
Comment:
For future tickets: Please always test current FFmpeg git head, nothing
else is supported both here and on the user mailing list.
The content is mixed progressive and telecined (actually 20 seconds
telecined Fox Intro followed by a progressive movie), this does not work
with fieldmatch currently, it requires cfr input: This seems not
documented (although known),
The following is supposed to produce perfect output, it unfortunately
doesn't work correctly:
{{{-vf fps=30000/1001,fieldmatch,decimate}}}
I suggest you either use the pullup filter or cut the Intro (or brutally
edit it with {{{-fps}}} or {{{-r}}}).
--
Ticket URL: <https://trac.ffmpeg.org/ticket/3968#comment:3>
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