[FFmpeg-devel] [PATCH 3/4] libswresample: Avoid needlessly large on-stack array.

[Reimar Döffinger]

On Wed, Sep 03, 2014 at 07:36:32AM +0200, Reimar Döffinger wrote:
> On 03.09.2014, at 06:28, Michael Niedermayer <michaelni at gmx.at> wrote:
> > On Wed, Sep 03, 2014 at 12:01:54AM +0200, Reimar Döffinger wrote:
> >> We only actually use a tiny part of it.
> >> 
> >> Signed-off-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
> >> ---
> >> libswresample/rematrix.c | 7 ++++---
> >> 1 file changed, 4 insertions(+), 3 deletions(-)
> > 
> > i think there a multiple loops left that can access more of the array
> > 
> > 2 i spotted:
> > for(i=0; i<64; i++){
> >        if(in_ch_layout & out_ch_layout & (1ULL<<i))
> >            matrix[i][i]= 1.0;
> >    }
> 
> Seems I missed that somehow. That one might be a bit of a mess.

Sent new version that hopefully is correct and not too messy...