Am 26.03.19 um 17:20 schrieb Carl Eugen Hoyos: > 2019-03-26 17:17 GMT+01:00, Ulf Zibis <ulf.zi...@cosoco.de>: >> Am 26.03.19 um 16:32 schrieb Carl Eugen Hoyos: >>> 2019-03-26 16:28 GMT+01:00, Ulf Zibis <ulf.zi...@cosoco.de>: >>>> Am 26.03.19 um 16:10 schrieb Carl Eugen Hoyos: >>>>> 2019-03-26 15:56 GMT+01:00, Ulf Zibis <ulf.zi...@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@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. >> I suspect, you are right on not suitable for performance test. > (I did not claim that, on the contrary.) > Why not? 1.) There may be a shortcut in CPU architecture for copying nulls in series (fillborders.c essentially does that) and more important ... 2.) Additionally I want to test on different ... - number of planes - color model /resolution - bit depth
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