[FFmpeg-devel] [PATCH 3/4] avcodec/jpeg2000: Simplify exp2fi for numbers used here

[Tomas Härdin]

lör 2024-02-17 klockan 21:05 +0100 skrev Andreas Rheinhardt:
> The call to ff_exp2fi() here always uses arguments in the normal
> range, so that the branches in ff_exp2fi() are unnecessary.
> This is so because JPEG2000 itself only supports up to
> 128 bits per component per pixel (we only support far less);
> furthermore, expn is always 0..31 for the decoder and also
> sane for the encoder, so that the difference between these
> two values is always in the normal range of -126..128.

Any measurable improvement in decode speed?

/Tomas