[FFmpeg-devel] [PATCH] [3/3] SIPR 16k decoder
Fri Jan 15 00:59:24 CET 2010
"Ronald S. Bultje" <rsbultje at gmail.com> writes:
> On Wed, Jan 13, 2010 at 11:15 PM, Vitor Sessak <vitor1001 at gmail.com> wrote:
>> And now the decoder code.
> +static void lsf2lsp(const float *lsf, double *lsp)
> + int i;
> + for (i = 0; i < LP_FILTER_ORDER_16k; i++)
> + lsp[i] = cosf(lsf[i]);
> So, in light of all recent discussion on types for whatnot, let's settle this.
> What type should LSFs, LSPs and LPCs be? I mean, all decoders do this.
> We can easily share it as long as we agree on this silly little thing.
Is there any particular reason for using double there?
Single-precision float is usually much faster, especially if it can be
BTW, watch out for cosf() missing on the usual broken systems.
mans at mansr.com
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