[FFmpeg-devel] [PATCH] avfilter/interlace: prevent over-sharpening with the complex low-pass filter

[Thomas Mundt]

2017-09-13 23:35 GMT+02:00 Thomas Mundt <tmundt75 at gmail.com>:

> 2017-09-06 22:15 GMT+02:00 Thomas Mundt <tmundt75 at gmail.com>:
>
>> 2017-09-01 1:55 GMT+02:00 Thomas Mundt <tmundt75 at gmail.com>:
>>
>>> 2017-09-01 1:22 GMT+02:00 Michael Niedermayer <michael at niedermayer.cc>:
>>>
>>>> On Fri, Sep 01, 2017 at 01:18:11AM +0200, Michael Niedermayer wrote:
>>>> > On Thu, Aug 31, 2017 at 10:40:12PM +0200, Thomas Mundt wrote:
>>>> > > 2017-08-31 21:42 GMT+02:00 Michael Niedermayer
>>>> <michael at niedermayer.cc>:
>>>> > >
>>>> > > > On Wed, Aug 30, 2017 at 03:54:08AM +0200, Thomas Mundt wrote:
>>>> > > > > Hi,
>>>> > > > >
>>>> > > > > we did a transcoding cascade test at work were over-sharpening
>>>> became
>>>> > > > > visible with the complex low-pass filter. This patch rectifies
>>>> the
>>>> > > > > behaviour.
>>>> > > > >
>>>> > > > > Please comment...
>>>> > > >
>>>> > > > did you perform subjective and or objective tests ?
>>>> > > >
>>>> > > > objective being some metric like PSNR vs correctly sampled data
>>>> > > > subjective being double blind tests with humans about which they
>>>> prefer
>>>> > > >
>>>> > >
>>>> > > The tests have been subjective with a team of video engineers and
>>>> > > technicians with several test files.
>>>> > >
>>>> > > I did a quick SSIM/PSNR check with the first generation of an
>>>> HD->SD file
>>>> > > as a reference against the 6th generation.
>>>> >
>>>> > if its better then iam fine with it. No more comments from me
>>>>
>>>> ahh, forgot, you may want tp add the tests you did and their results
>>>> to the commit message
>>>
>>>
>>> Sure, new patch attached.
>>>
>>
>> Ping
>>
>
> Ping!
>

Michael, is it possible for you to push this?
Or is there anything that I need to do?

Regards, Thomas