[FFmpeg-devel] [Patch] beautified + accelerated vf_fillborders – Please review

[Paul B Mahol]

On 3/26/19, Ulf Zibis <Ulf.Zibis at cosoco.de> wrote:
>
> Am 26.03.19 um 17:39 schrieb Carl Eugen Hoyos:
>>
>>> 1.) There may be a shortcut in CPU architecture for copying nulls in
>>> series (fillborders.c essentially does that) and more important ...
>> I am curious:
>> Which architecture are you thinking about that interprets
>> FFmpeg's inner structure?
> I was inspired of your suspicion. ;-) From Java code I know, that such
> things happen as cause of the JIT "just in time compiler" optimization,
> don't know, if modern C compilers assemble similar effects.
>
>>> 2.) Additionally I want to test on different ...
>>> - number of planes
>>> - color model /resolution
>>> - bit depth
>> Use the input option -pix_fmt
>
> Ok, I'll look on that.
>
> And I'm still curious to read something on my initial question
> (following your suggestion from 19.03.19, 17:31 CET to use "-loop"):
> ... I ask, because I want to understand the purpose of the shorter
> options "-loop number" and "-stream_loop number" (or how to apply them
> correctly in the command line to get the wanted effect on single picture
> input).

If you want to work on ffmpeg, you certainly need to learn how to use.
You showed very little skills.