[FFmpeg-devel] [PATCH] avcodec/tak: reset filter buffers

Paul B Mahol onemda at gmail.com
Sat Feb 21 19:47:10 CET 2015


On 2/21/15, James Almer <jamrial at gmail.com> wrote:
> On 21/02/15 8:49 AM, Paul B Mahol wrote:
>> Have you measured performance drop before and after?
>
> filter_order 8 in decorrelate()
>
> Before
> 903 decicycles in scalarproduct, 8388364 runs, 244 skips
> After
> 858 decicycles in scalarproduct, 8388215 runs, 393 skips
>
>
> filter_order 24 in decode_subframe()
>
> Before
> 993 decicycles in scalarproduct, 16776849 runs, 367 skips
> After
> 887 decicycles in scalarproduct, 16776783 runs, 433 skips
>

But what about other filter orders?
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