[FFmpeg-devel] [PATCH] Change default behaviour of scale filter from 'progressive' to 'auto'

Tim Nicholson nichot20 at yahoo.com
Fri Mar 30 17:47:22 CEST 2012

On 30/03/12 15:47, Michael Niedermayer wrote:
> On Fri, Mar 30, 2012 at 10:51:28AM +0100, Tim Nicholson wrote:
>> When the option of interlaced aware scaling was first introduced interlace detection
>> was poor. This has been improved, and this proposed patch changes the default behaviour
>> of the filter to depend upon the auto detected value, bringing it into line with
>> many other options whose default value is -1 (auto).
>> From 4d1ad96e209b18bdf86530d153a6a5acbc5aab8a Mon Sep 17 00:00:00 2001
>> From: Tim Nicholson <Tim.Nicholson at bbc.co.uk>
>> Date: Fri, 30 Mar 2012 10:43:46 +0100
>> Subject: [PATCH] Make default setting of parameter interl=-1 (auto)
>> Previously default was 0 (progressive), but interlace detection has been
>> improved in 648e55ff, and this makes the behaviour consistent with other
>> options that use 1|0|-1 with -1 the default.
> This patch changes several fate tests checksums
> please check if these changes are ok and if so update the checksums
> with the patch

Hmmm. I didn't think a command line selection logic change would affect
fate. But I am beginning to think that this change may be affecting auto
inserted filters (hopefully for the better if it stops them mangling
interlaced material).

I'm not very fluent with fate, so this may take a while....

> [...]
> Test vsynth1-dnxhd_1080i failed. Look at tests/data/fate/vsynth1-dnxhd_1080i.err for details.
> make: *** [fate-vsynth1-dnxhd_1080i] Error 1
> [..]
> Test vsynth1-dv failed. Look at tests/data/fate/vsynth1-dv.err for details.
> make: *** [fate-vsynth1-dv] Error 1
> [...]


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