[FFmpeg-devel] [PATCH] vf_tinterlace: add vertical low-pass-filter option to mode 4 and 5

Mark Himsley mark at mdsh.com
Sun Dec 30 23:22:47 CET 2012

On 30/12/2012 14:22, Stefano Sabatini wrote:
> On date Saturday 2012-12-29 23:32:45 +0000, Mark Himsley encoded:
>> On 29/12/2012 09:52, Stefano Sabatini wrote:
>>> remove "up to two" in case we add more options
>>> Better to put the possible values inside the @item description.
>>> Nit: "low_pass_filter flag ignored with mode %d\n"
>> I think I've done what you requested with the doc, I assume the
>> @var{mode} values will be moved inside its @item description in a later
>> patch - so it matches the @var{flags}. Or I've got the wrong end of the
>> stick.
>>> LGTM otherwise, thanks.
>> Thank you for your review. It is better code now.
>> Low-pass filtering is required when creating an interlaced destination
>> from a progressive source which contains high-frequency vertical detail.
>> Filtering will reduce interlace 'twitter' and Moire patterning.
>> Updated patch attached.
> [...]
> Applied with some documentation tweaks, and an alias "vlfp" for
> "low_filter_pass", thank you.

Thanks Stefano - I appreciate your work. I didn't think of doing that
with the documentation.

And sorry to Michael for mixing declarations and expressions.


More information about the ffmpeg-devel mailing list