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

[Ulf Zibis]

Am 26.03.19 um 16:32 schrieb Carl Eugen Hoyos:
> 2019-03-26 16:28 GMT+01:00, Ulf Zibis <Ulf.Zibis at cosoco.de>:
>> Am 26.03.19 um 16:10 schrieb Carl Eugen Hoyos:
>>> 2019-03-26 15:56 GMT+01:00, Ulf Zibis <Ulf.Zibis at cosoco.de>:
>>>
>>>> I'm trying to benchmark -vf fillborders (added the timer
>>>> code in vf_fillborders.c), so Carl Eugen's suggestion
>>>> to use /dev/zero as input would not make sense.
>>> Please elaborate.
>> It seems I'm doing something wrong:
>>
>> ich at T500:~/Projects/ffmpeg/dev$ ./ffmpeg-p7b -y -stream_loop 1024
>> -i /dev/zero -vf fillborders=25:25:25:25:mirror -f null -
> $ ffmpeg -f rawvideo -s hd1080 -i /dev/zero -vf ... -t 1000 -f null -
>
> It may be that the performance of the filter cannot be
> tested like this, I don't know.

Thanks for your help!

I suspect, you are right on not suitable for performance test.
... and for sure not for algorithmic tests.

Unfortunately my initial question is still open:
... but 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).

-Ulf