[FFmpeg-devel] [PATCH 0/2][RFC] xbr, hqx: minor simplification

Clément Bœsch u at pkh.me
Sat Nov 29 22:07:42 CET 2014

On Sat, Nov 29, 2014 at 03:26:08AM +0100, Alexander Strasser wrote:
> Hi,
> while reading the recent evolution of xbr I came up with the
> idea for below 2 patches.
>   Maybe I am missing something, but AFAICT both filters use
> a single shared filter function for n in [2, 4] using n as a param
> but n is stored in the filter context too. The corresponding fate
> tests and visual inspection show no differences.
>   It sure is a matter of taste, so I guess it is your call Clément.
> Alexander Strasser (2):
>   lavfi/vf_xbr: Remove function generator macro and function pointer
>     indirection
>   lavfi/vf_hqx: Remove function generator macro and function pointer
>     indirection
>  libavfilter/vf_hqx.c | 35 +++++++++++------------------------
>  libavfilter/vf_xbr.c | 33 ++++++++++-----------------------


This probably kills the performances badly.

The purpose of this indirection is to create N functions optimized for a
specific size.

Best regards,

Clément B.
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