On Fri, Nov 21, 2014 at 12:57 PM, Vittorio Giovara
<vittorio.giov...@gmail.com> wrote:
> From: Luca Barbato <lu_z...@gentoo.org>
>
> Might spare few cycles if the compiler is naive and
> makes the function more readable.
> ---
> libavcodec/aacdec.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
> diff --git a/libavcodec/aacdec.c b/libavcodec/aacdec.c
> index d2d51f5..6968102 100644
> --- a/libavcodec/aacdec.c
> +++ b/libavcodec/aacdec.c
> @@ -1419,13 +1419,12 @@ static void decode_mid_side_stereo(ChannelElement
> *cpe, GetBitContext *gb,
> int ms_present)
> {
> int idx;
> + int max_idx = cpe->ch[0].ics.num_window_groups * cpe->ch[0].ics.max_sfb;
> if (ms_present == 1) {
> - for (idx = 0;
> - idx < cpe->ch[0].ics.num_window_groups * cpe->ch[0].ics.max_sfb;
> - idx++)
> + for (idx = 0; idx < max_idx; idx++)
> cpe->ms_mask[idx] = get_bits1(gb);
> } else if (ms_present == 2) {
> - memset(cpe->ms_mask, 1, cpe->ch[0].ics.num_window_groups *
> cpe->ch[0].ics.max_sfb * sizeof(cpe->ms_mask[0]));
> + memset(cpe->ms_mask, 1, max_idx * sizeof(cpe->ms_mask[0]));
> }
> }
>
> --
> 1.9.3 (Apple Git-50)
>
ping
--
Vittorio
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