[FFmpeg-devel] [PATCH] dvbsubdec: Avoid potential use of uninitialized memory

Michael Niedermayer michaelni at gmx.at
Mon Sep 12 23:38:01 CEST 2011


On Mon, Sep 12, 2011 at 11:17:35PM +0200, Joakim Plate wrote:
> On Mon, 12 Sep 2011 21:32:32 +0200, Clément Bœsch wrote:
> 
> > On Mon, Sep 12, 2011 at 09:13:47PM +0200, Joakim Plate wrote:
> >> [18 quoted lines suppressed]
> > 
> > Mmh it seems I forgot to apply that patch when I proposed it a while ago.
> > IIRC, only colormap is concerned about the uninitialized values. Also,
> > Michael pointed out the zeros might not be a good fallback values…
> 
> Seems alpha is too, it passed into guess_palette
> 
> What about the other idea. Move it to context instead. That way we remember
> the values for all following frames should some part not contain these
> fields.

seems like a good idea to me

[...]
-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

If you think the mosad wants you dead since a long time then you are either
wrong or dead since a long time.
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