[FFmpeg-devel] [PATCH 2/3] avcodec/aacsbr: Add comment about possibly optimization in sbr_dequant()

[Andreas Cadhalpun]

On 19.11.2015 14:17, Michael Niedermayer wrote:
> From: Michael Niedermayer <michael at niedermayer.cc>
> 
> Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> ---
>  libavcodec/aacsbr.c |    1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/libavcodec/aacsbr.c b/libavcodec/aacsbr.c
> index d1e3a91..e014646 100644
> --- a/libavcodec/aacsbr.c
> +++ b/libavcodec/aacsbr.c
> @@ -73,6 +73,7 @@ static void sbr_dequant(SpectralBandReplication *sbr, int id_aac)
>  {
>      int k, e;
>      int ch;
> +    //TODO: Replace exp2f(0.5*x) by a LUT, the inputs are all integer and have a small range
>  
>      if (id_aac == TYPE_CPE && sbr->bs_coupling) {
>          float alpha      = sbr->data[0].bs_amp_res ?  1.0f :  0.5f;
> 

This shouldn't hurt, with or without the clarification requested by Ganesh.

Best regards,
Andreas